1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/windows/nsWindow.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,7529 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sts=2 sw=2 et cin: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +/*
1.11 + * nsWindow - Native window management and event handling.
1.12 + *
1.13 + * nsWindow is organized into a set of major blocks and
1.14 + * block subsections. The layout is as follows:
1.15 + *
1.16 + * Includes
1.17 + * Variables
1.18 + * nsIWidget impl.
1.19 + * nsIWidget methods and utilities
1.20 + * nsSwitchToUIThread impl.
1.21 + * nsSwitchToUIThread methods and utilities
1.22 + * Moz events
1.23 + * Event initialization
1.24 + * Event dispatching
1.25 + * Native events
1.26 + * Wndproc(s)
1.27 + * Event processing
1.28 + * OnEvent event handlers
1.29 + * IME management and accessibility
1.30 + * Transparency
1.31 + * Popup hook handling
1.32 + * Misc. utilities
1.33 + * Child window impl.
1.34 + *
1.35 + * Search for "BLOCK:" to find major blocks.
1.36 + * Search for "SECTION:" to find specific sections.
1.37 + *
1.38 + * Blocks should be split out into separate files if they
1.39 + * become unmanageable.
1.40 + *
1.41 + * Related source:
1.42 + *
1.43 + * nsWindowDefs.h - Definitions, macros, structs, enums
1.44 + * and general setup.
1.45 + * nsWindowDbg.h/.cpp - Debug related code and directives.
1.46 + * nsWindowGfx.h/.cpp - Graphics and painting.
1.47 + *
1.48 + */
1.49 +
1.50 +/**************************************************************
1.51 + **************************************************************
1.52 + **
1.53 + ** BLOCK: Includes
1.54 + **
1.55 + ** Include headers.
1.56 + **
1.57 + **************************************************************
1.58 + **************************************************************/
1.59 +
1.60 +#include "mozilla/MathAlgorithms.h"
1.61 +#include "mozilla/MiscEvents.h"
1.62 +#include "mozilla/MouseEvents.h"
1.63 +#include "mozilla/TouchEvents.h"
1.64 +
1.65 +#include "mozilla/ipc/MessageChannel.h"
1.66 +#include <algorithm>
1.67 +
1.68 +#include "nsWindow.h"
1.69 +
1.70 +#include <shellapi.h>
1.71 +#include <windows.h>
1.72 +#include <process.h>
1.73 +#include <commctrl.h>
1.74 +#include <unknwn.h>
1.75 +#include <psapi.h>
1.76 +
1.77 +#include "prlog.h"
1.78 +#include "prtime.h"
1.79 +#include "prprf.h"
1.80 +#include "prmem.h"
1.81 +#include "prenv.h"
1.82 +
1.83 +#include "mozilla/WidgetTraceEvent.h"
1.84 +#include "nsIAppShell.h"
1.85 +#include "nsISupportsPrimitives.h"
1.86 +#include "nsIDOMMouseEvent.h"
1.87 +#include "nsITheme.h"
1.88 +#include "nsIObserverService.h"
1.89 +#include "nsIScreenManager.h"
1.90 +#include "imgIContainer.h"
1.91 +#include "nsIFile.h"
1.92 +#include "nsIRollupListener.h"
1.93 +#include "nsIServiceManager.h"
1.94 +#include "nsIClipboard.h"
1.95 +#include "nsIMM32Handler.h"
1.96 +#include "WinMouseScrollHandler.h"
1.97 +#include "nsFontMetrics.h"
1.98 +#include "nsIFontEnumerator.h"
1.99 +#include "nsFont.h"
1.100 +#include "nsRect.h"
1.101 +#include "nsThreadUtils.h"
1.102 +#include "nsNativeCharsetUtils.h"
1.103 +#include "nsGkAtoms.h"
1.104 +#include "nsCRT.h"
1.105 +#include "nsAppDirectoryServiceDefs.h"
1.106 +#include "nsXPIDLString.h"
1.107 +#include "nsWidgetsCID.h"
1.108 +#include "nsTHashtable.h"
1.109 +#include "nsHashKeys.h"
1.110 +#include "nsString.h"
1.111 +#include "mozilla/Services.h"
1.112 +#include "nsNativeThemeWin.h"
1.113 +#include "nsWindowsDllInterceptor.h"
1.114 +#include "nsLayoutUtils.h"
1.115 +#include "nsView.h"
1.116 +#include "nsIWindowMediator.h"
1.117 +#include "nsIServiceManager.h"
1.118 +#include "nsWindowGfx.h"
1.119 +#include "gfxWindowsPlatform.h"
1.120 +#include "Layers.h"
1.121 +#include "nsPrintfCString.h"
1.122 +#include "mozilla/Preferences.h"
1.123 +#include "nsISound.h"
1.124 +#include "WinTaskbar.h"
1.125 +#include "WinUtils.h"
1.126 +#include "WidgetUtils.h"
1.127 +#include "nsIWidgetListener.h"
1.128 +#include "mozilla/dom/Touch.h"
1.129 +#include "mozilla/gfx/2D.h"
1.130 +#include "nsToolkitCompsCID.h"
1.131 +#include "nsIAppStartup.h"
1.132 +#include "mozilla/WindowsVersion.h"
1.133 +#include "nsThemeConstants.h"
1.134 +
1.135 +#ifdef MOZ_ENABLE_D3D9_LAYER
1.136 +#include "LayerManagerD3D9.h"
1.137 +#endif
1.138 +
1.139 +#ifdef MOZ_ENABLE_D3D10_LAYER
1.140 +#include "LayerManagerD3D10.h"
1.141 +#endif
1.142 +
1.143 +#include "nsIGfxInfo.h"
1.144 +#include "nsUXThemeConstants.h"
1.145 +#include "KeyboardLayout.h"
1.146 +#include "nsNativeDragTarget.h"
1.147 +#include <mmsystem.h> // needed for WIN32_LEAN_AND_MEAN
1.148 +#include <zmouse.h>
1.149 +#include <richedit.h>
1.150 +
1.151 +#if defined(ACCESSIBILITY)
1.152 +
1.153 +#ifdef DEBUG
1.154 +#include "mozilla/a11y/Logging.h"
1.155 +#endif
1.156 +
1.157 +#include "oleidl.h"
1.158 +#include <winuser.h>
1.159 +#include "nsAccessibilityService.h"
1.160 +#include "mozilla/a11y/DocAccessible.h"
1.161 +#include "mozilla/a11y/Platform.h"
1.162 +#if !defined(WINABLEAPI)
1.163 +#include <winable.h>
1.164 +#endif // !defined(WINABLEAPI)
1.165 +#endif // defined(ACCESSIBILITY)
1.166 +
1.167 +#include "nsIWinTaskbar.h"
1.168 +#define NS_TASKBAR_CONTRACTID "@mozilla.org/windows-taskbar;1"
1.169 +
1.170 +#include "nsWindowDefs.h"
1.171 +
1.172 +#include "nsCrashOnException.h"
1.173 +#include "nsIXULRuntime.h"
1.174 +
1.175 +#include "nsIContent.h"
1.176 +
1.177 +#include "mozilla/HangMonitor.h"
1.178 +#include "WinIMEHandler.h"
1.179 +
1.180 +#include "npapi.h"
1.181 +
1.182 +#if !defined(SM_CONVERTIBLESLATEMODE)
1.183 +#define SM_CONVERTIBLESLATEMODE 0x2003
1.184 +#endif
1.185 +
1.186 +using namespace mozilla;
1.187 +using namespace mozilla::dom;
1.188 +using namespace mozilla::layers;
1.189 +using namespace mozilla::widget;
1.190 +
1.191 +/**************************************************************
1.192 + **************************************************************
1.193 + **
1.194 + ** BLOCK: Variables
1.195 + **
1.196 + ** nsWindow Class static initializations and global variables.
1.197 + **
1.198 + **************************************************************
1.199 + **************************************************************/
1.200 +
1.201 +/**************************************************************
1.202 + *
1.203 + * SECTION: nsWindow statics
1.204 + *
1.205 + **************************************************************/
1.206 +
1.207 +bool nsWindow::sDropShadowEnabled = true;
1.208 +uint32_t nsWindow::sInstanceCount = 0;
1.209 +bool nsWindow::sSwitchKeyboardLayout = false;
1.210 +BOOL nsWindow::sIsOleInitialized = FALSE;
1.211 +HCURSOR nsWindow::sHCursor = nullptr;
1.212 +imgIContainer* nsWindow::sCursorImgContainer = nullptr;
1.213 +nsWindow* nsWindow::sCurrentWindow = nullptr;
1.214 +bool nsWindow::sJustGotDeactivate = false;
1.215 +bool nsWindow::sJustGotActivate = false;
1.216 +bool nsWindow::sIsInMouseCapture = false;
1.217 +
1.218 +// imported in nsWidgetFactory.cpp
1.219 +TriStateBool nsWindow::sCanQuit = TRI_UNKNOWN;
1.220 +
1.221 +// Hook Data Memebers for Dropdowns. sProcessHook Tells the
1.222 +// hook methods whether they should be processing the hook
1.223 +// messages.
1.224 +HHOOK nsWindow::sMsgFilterHook = nullptr;
1.225 +HHOOK nsWindow::sCallProcHook = nullptr;
1.226 +HHOOK nsWindow::sCallMouseHook = nullptr;
1.227 +bool nsWindow::sProcessHook = false;
1.228 +UINT nsWindow::sRollupMsgId = 0;
1.229 +HWND nsWindow::sRollupMsgWnd = nullptr;
1.230 +UINT nsWindow::sHookTimerId = 0;
1.231 +
1.232 +// Mouse Clicks - static variable definitions for figuring
1.233 +// out 1 - 3 Clicks.
1.234 +POINT nsWindow::sLastMousePoint = {0};
1.235 +POINT nsWindow::sLastMouseMovePoint = {0};
1.236 +LONG nsWindow::sLastMouseDownTime = 0L;
1.237 +LONG nsWindow::sLastClickCount = 0L;
1.238 +BYTE nsWindow::sLastMouseButton = 0;
1.239 +
1.240 +// Trim heap on minimize. (initialized, but still true.)
1.241 +int nsWindow::sTrimOnMinimize = 2;
1.242 +
1.243 +// Default value for general window class (used when the pref is the empty string).
1.244 +const char* nsWindow::sDefaultMainWindowClass = kClassNameGeneral;
1.245 +
1.246 +// If we're using D3D9, this will not be allowed during initial 5 seconds.
1.247 +bool nsWindow::sAllowD3D9 = false;
1.248 +
1.249 +TriStateBool nsWindow::sHasBogusPopupsDropShadowOnMultiMonitor = TRI_UNKNOWN;
1.250 +
1.251 +// Used in OOPP plugin focus processing.
1.252 +const wchar_t* kOOPPPluginFocusEventId = L"OOPP Plugin Focus Widget Event";
1.253 +uint32_t nsWindow::sOOPPPluginFocusEvent =
1.254 + RegisterWindowMessageW(kOOPPPluginFocusEventId);
1.255 +
1.256 +/**************************************************************
1.257 + *
1.258 + * SECTION: globals variables
1.259 + *
1.260 + **************************************************************/
1.261 +
1.262 +static const char *sScreenManagerContractID = "@mozilla.org/gfx/screenmanager;1";
1.263 +
1.264 +#ifdef PR_LOGGING
1.265 +extern PRLogModuleInfo* gWindowsLog;
1.266 +#endif
1.267 +
1.268 +// Global used in Show window enumerations.
1.269 +static bool gWindowsVisible = false;
1.270 +
1.271 +// True if we have sent a notification that we are suspending/sleeping.
1.272 +static bool gIsSleepMode = false;
1.273 +
1.274 +static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
1.275 +
1.276 +// General purpose user32.dll hook object
1.277 +static WindowsDllInterceptor sUser32Intercept;
1.278 +
1.279 +// 2 pixel offset for eTransparencyBorderlessGlass which equals the size of
1.280 +// the default window border Windows paints. Glass will be extended inward
1.281 +// this distance to remove the border.
1.282 +static const int32_t kGlassMarginAdjustment = 2;
1.283 +
1.284 +// When the client area is extended out into the default window frame area,
1.285 +// this is the minimum amount of space along the edge of resizable windows
1.286 +// we will always display a resize cursor in, regardless of the underlying
1.287 +// content.
1.288 +static const int32_t kResizableBorderMinSize = 3;
1.289 +
1.290 +// Cached pointer events enabler value, True if pointer events are enabled.
1.291 +static bool gIsPointerEventsEnabled = false;
1.292 +
1.293 +// We should never really try to accelerate windows bigger than this. In some
1.294 +// cases this might lead to no D3D9 acceleration where we could have had it
1.295 +// but D3D9 does not reliably report when it supports bigger windows. 8192
1.296 +// is as safe as we can get, we know at least D3D10 hardware always supports
1.297 +// this, other hardware we expect to report correctly in D3D9.
1.298 +#define MAX_ACCELERATED_DIMENSION 8192
1.299 +
1.300 +// On window open (as well as after), Windows has an unfortunate habit of
1.301 +// sending rather a lot of WM_NCHITTEST messages. Because we have to do point
1.302 +// to DOM target conversions for these, we cache responses for a given
1.303 +// coordinate this many milliseconds:
1.304 +#define HITTEST_CACHE_LIFETIME_MS 50
1.305 +
1.306 +
1.307 +/**************************************************************
1.308 + **************************************************************
1.309 + **
1.310 + ** BLOCK: nsIWidget impl.
1.311 + **
1.312 + ** nsIWidget interface implementation, broken down into
1.313 + ** sections.
1.314 + **
1.315 + **************************************************************
1.316 + **************************************************************/
1.317 +
1.318 +/**************************************************************
1.319 + *
1.320 + * SECTION: nsWindow construction and destruction
1.321 + *
1.322 + **************************************************************/
1.323 +
1.324 +nsWindow::nsWindow() : nsWindowBase()
1.325 +{
1.326 + mIconSmall = nullptr;
1.327 + mIconBig = nullptr;
1.328 + mWnd = nullptr;
1.329 + mPaintDC = nullptr;
1.330 + mCompositeDC = nullptr;
1.331 + mPrevWndProc = nullptr;
1.332 + mNativeDragTarget = nullptr;
1.333 + mInDtor = false;
1.334 + mIsVisible = false;
1.335 + mIsTopWidgetWindow = false;
1.336 + mUnicodeWidget = true;
1.337 + mDisplayPanFeedback = false;
1.338 + mTouchWindow = false;
1.339 + mCustomNonClient = false;
1.340 + mHideChrome = false;
1.341 + mFullscreenMode = false;
1.342 + mMousePresent = false;
1.343 + mDestroyCalled = false;
1.344 + mHasTaskbarIconBeenCreated = false;
1.345 + mMouseTransparent = false;
1.346 + mPickerDisplayCount = 0;
1.347 + mWindowType = eWindowType_child;
1.348 + mBorderStyle = eBorderStyle_default;
1.349 + mOldSizeMode = nsSizeMode_Normal;
1.350 + mLastSizeMode = nsSizeMode_Normal;
1.351 + mLastSize.width = 0;
1.352 + mLastSize.height = 0;
1.353 + mOldStyle = 0;
1.354 + mOldExStyle = 0;
1.355 + mPainting = 0;
1.356 + mLastKeyboardLayout = 0;
1.357 + mBlurSuppressLevel = 0;
1.358 + mLastPaintEndTime = TimeStamp::Now();
1.359 + mCachedHitTestPoint.x = 0;
1.360 + mCachedHitTestPoint.y = 0;
1.361 + mCachedHitTestTime = TimeStamp::Now();
1.362 + mCachedHitTestResult = 0;
1.363 +#ifdef MOZ_XUL
1.364 + mTransparentSurface = nullptr;
1.365 + mMemoryDC = nullptr;
1.366 + mTransparencyMode = eTransparencyOpaque;
1.367 + memset(&mGlassMargins, 0, sizeof mGlassMargins);
1.368 +#endif
1.369 + DWORD background = ::GetSysColor(COLOR_BTNFACE);
1.370 + mBrush = ::CreateSolidBrush(NSRGB_2_COLOREF(background));
1.371 +
1.372 + mTaskbarPreview = nullptr;
1.373 +
1.374 + // Global initialization
1.375 + if (!sInstanceCount) {
1.376 + // Global app registration id for Win7 and up. See
1.377 + // WinTaskbar.cpp for details.
1.378 + mozilla::widget::WinTaskbar::RegisterAppUserModelID();
1.379 + KeyboardLayout::GetInstance()->OnLayoutChange(::GetKeyboardLayout(0));
1.380 + IMEHandler::Initialize();
1.381 + if (SUCCEEDED(::OleInitialize(nullptr))) {
1.382 + sIsOleInitialized = TRUE;
1.383 + }
1.384 + NS_ASSERTION(sIsOleInitialized, "***** OLE is not initialized!\n");
1.385 + MouseScrollHandler::Initialize();
1.386 + // Init titlebar button info for custom frames.
1.387 + nsUXThemeData::InitTitlebarInfo();
1.388 + // Init theme data
1.389 + nsUXThemeData::UpdateNativeThemeInfo();
1.390 + RedirectedKeyDownMessageManager::Forget();
1.391 +
1.392 + Preferences::AddBoolVarCache(&gIsPointerEventsEnabled,
1.393 + "dom.w3c_pointer_events.enabled",
1.394 + gIsPointerEventsEnabled);
1.395 + } // !sInstanceCount
1.396 +
1.397 + mIdleService = nullptr;
1.398 +
1.399 + sInstanceCount++;
1.400 +}
1.401 +
1.402 +nsWindow::~nsWindow()
1.403 +{
1.404 + mInDtor = true;
1.405 +
1.406 + // If the widget was released without calling Destroy() then the native window still
1.407 + // exists, and we need to destroy it. This will also result in a call to OnDestroy.
1.408 + //
1.409 + // XXX How could this happen???
1.410 + if (nullptr != mWnd)
1.411 + Destroy();
1.412 +
1.413 + // Free app icon resources. This must happen after `OnDestroy` (see bug 708033).
1.414 + if (mIconSmall)
1.415 + ::DestroyIcon(mIconSmall);
1.416 +
1.417 + if (mIconBig)
1.418 + ::DestroyIcon(mIconBig);
1.419 +
1.420 + sInstanceCount--;
1.421 +
1.422 + // Global shutdown
1.423 + if (sInstanceCount == 0) {
1.424 + IMEHandler::Terminate();
1.425 + NS_IF_RELEASE(sCursorImgContainer);
1.426 + if (sIsOleInitialized) {
1.427 + ::OleFlushClipboard();
1.428 + ::OleUninitialize();
1.429 + sIsOleInitialized = FALSE;
1.430 + }
1.431 + }
1.432 +
1.433 + NS_IF_RELEASE(mNativeDragTarget);
1.434 +}
1.435 +
1.436 +NS_IMPL_ISUPPORTS_INHERITED0(nsWindow, nsBaseWidget)
1.437 +
1.438 +/**************************************************************
1.439 + *
1.440 + * SECTION: nsIWidget::Create, nsIWidget::Destroy
1.441 + *
1.442 + * Creating and destroying windows for this widget.
1.443 + *
1.444 + **************************************************************/
1.445 +
1.446 +// Allow Derived classes to modify the height that is passed
1.447 +// when the window is created or resized.
1.448 +int32_t nsWindow::GetHeight(int32_t aProposedHeight)
1.449 +{
1.450 + return aProposedHeight;
1.451 +}
1.452 +
1.453 +// Create the proper widget
1.454 +nsresult
1.455 +nsWindow::Create(nsIWidget *aParent,
1.456 + nsNativeWidget aNativeParent,
1.457 + const nsIntRect &aRect,
1.458 + nsDeviceContext *aContext,
1.459 + nsWidgetInitData *aInitData)
1.460 +{
1.461 + nsWidgetInitData defaultInitData;
1.462 + if (!aInitData)
1.463 + aInitData = &defaultInitData;
1.464 +
1.465 + mUnicodeWidget = aInitData->mUnicode;
1.466 +
1.467 + nsIWidget *baseParent = aInitData->mWindowType == eWindowType_dialog ||
1.468 + aInitData->mWindowType == eWindowType_toplevel ||
1.469 + aInitData->mWindowType == eWindowType_invisible ?
1.470 + nullptr : aParent;
1.471 +
1.472 + mIsTopWidgetWindow = (nullptr == baseParent);
1.473 + mBounds = aRect;
1.474 +
1.475 + // Ensure that the toolkit is created.
1.476 + nsToolkit::GetToolkit();
1.477 +
1.478 + BaseCreate(baseParent, aRect, aContext, aInitData);
1.479 +
1.480 + HWND parent;
1.481 + if (aParent) { // has a nsIWidget parent
1.482 + parent = aParent ? (HWND)aParent->GetNativeData(NS_NATIVE_WINDOW) : nullptr;
1.483 + mParent = aParent;
1.484 + } else { // has a nsNative parent
1.485 + parent = (HWND)aNativeParent;
1.486 + mParent = aNativeParent ?
1.487 + WinUtils::GetNSWindowPtr((HWND)aNativeParent) : nullptr;
1.488 + }
1.489 +
1.490 + mIsRTL = aInitData->mRTL;
1.491 +
1.492 + DWORD style = WindowStyle();
1.493 + DWORD extendedStyle = WindowExStyle();
1.494 +
1.495 + if (mWindowType == eWindowType_popup) {
1.496 + if (!aParent) {
1.497 + parent = nullptr;
1.498 + }
1.499 +
1.500 + if (IsVistaOrLater() && !IsWin8OrLater() &&
1.501 + HasBogusPopupsDropShadowOnMultiMonitor()) {
1.502 + extendedStyle |= WS_EX_COMPOSITED;
1.503 + }
1.504 +
1.505 + if (aInitData->mMouseTransparent) {
1.506 + // This flag makes the window transparent to mouse events
1.507 + mMouseTransparent = true;
1.508 + extendedStyle |= WS_EX_TRANSPARENT;
1.509 + }
1.510 + } else if (mWindowType == eWindowType_invisible) {
1.511 + // Make sure CreateWindowEx succeeds at creating a toplevel window
1.512 + style &= ~0x40000000; // WS_CHILDWINDOW
1.513 + } else {
1.514 + // See if the caller wants to explictly set clip children and clip siblings
1.515 + if (aInitData->clipChildren) {
1.516 + style |= WS_CLIPCHILDREN;
1.517 + } else {
1.518 + style &= ~WS_CLIPCHILDREN;
1.519 + }
1.520 + if (aInitData->clipSiblings) {
1.521 + style |= WS_CLIPSIBLINGS;
1.522 + }
1.523 + }
1.524 +
1.525 + nsAutoString className;
1.526 + if (aInitData->mDropShadow) {
1.527 + GetWindowPopupClass(className);
1.528 + } else {
1.529 + GetWindowClass(className);
1.530 + }
1.531 + // Plugins are created in the disabled state so that they can't
1.532 + // steal focus away from our main window. This is especially
1.533 + // important if the plugin has loaded in a background tab.
1.534 + if(aInitData->mWindowType == eWindowType_plugin) {
1.535 + style |= WS_DISABLED;
1.536 + }
1.537 + mWnd = ::CreateWindowExW(extendedStyle,
1.538 + className.get(),
1.539 + L"",
1.540 + style,
1.541 + aRect.x,
1.542 + aRect.y,
1.543 + aRect.width,
1.544 + GetHeight(aRect.height),
1.545 + parent,
1.546 + nullptr,
1.547 + nsToolkit::mDllInstance,
1.548 + nullptr);
1.549 +
1.550 + if (!mWnd) {
1.551 + NS_WARNING("nsWindow CreateWindowEx failed.");
1.552 + return NS_ERROR_FAILURE;
1.553 + }
1.554 +
1.555 + if (mIsRTL && WinUtils::dwmSetWindowAttributePtr) {
1.556 + DWORD dwAttribute = TRUE;
1.557 + WinUtils::dwmSetWindowAttributePtr(mWnd, DWMWA_NONCLIENT_RTL_LAYOUT, &dwAttribute, sizeof dwAttribute);
1.558 + }
1.559 +
1.560 + if (mWindowType != eWindowType_plugin &&
1.561 + mWindowType != eWindowType_invisible &&
1.562 + MouseScrollHandler::Device::IsFakeScrollableWindowNeeded()) {
1.563 + // Ugly Thinkpad Driver Hack (Bugs 507222 and 594977)
1.564 + //
1.565 + // We create two zero-sized windows as descendants of the top-level window,
1.566 + // like so:
1.567 + //
1.568 + // Top-level window (MozillaWindowClass)
1.569 + // FAKETRACKPOINTSCROLLCONTAINER (MozillaWindowClass)
1.570 + // FAKETRACKPOINTSCROLLABLE (MozillaWindowClass)
1.571 + //
1.572 + // We need to have the middle window, otherwise the Trackpoint driver
1.573 + // will fail to deliver scroll messages. WM_MOUSEWHEEL messages are
1.574 + // sent to the FAKETRACKPOINTSCROLLABLE, which then propagate up the
1.575 + // window hierarchy until they are handled by nsWindow::WindowProc.
1.576 + // WM_HSCROLL messages are also sent to the FAKETRACKPOINTSCROLLABLE,
1.577 + // but these do not propagate automatically, so we have the window
1.578 + // procedure pretend that they were dispatched to the top-level window
1.579 + // instead.
1.580 + //
1.581 + // The FAKETRACKPOINTSCROLLABLE needs to have the specific window styles it
1.582 + // is given below so that it catches the Trackpoint driver's heuristics.
1.583 + HWND scrollContainerWnd = ::CreateWindowW
1.584 + (className.get(), L"FAKETRACKPOINTSCROLLCONTAINER",
1.585 + WS_CHILD | WS_VISIBLE,
1.586 + 0, 0, 0, 0, mWnd, nullptr, nsToolkit::mDllInstance, nullptr);
1.587 + HWND scrollableWnd = ::CreateWindowW
1.588 + (className.get(), L"FAKETRACKPOINTSCROLLABLE",
1.589 + WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_TABSTOP | 0x30,
1.590 + 0, 0, 0, 0, scrollContainerWnd, nullptr, nsToolkit::mDllInstance,
1.591 + nullptr);
1.592 +
1.593 + // Give the FAKETRACKPOINTSCROLLABLE window a specific ID so that
1.594 + // WindowProcInternal can distinguish it from the top-level window
1.595 + // easily.
1.596 + ::SetWindowLongPtrW(scrollableWnd, GWLP_ID, eFakeTrackPointScrollableID);
1.597 +
1.598 + // Make FAKETRACKPOINTSCROLLABLE use nsWindow::WindowProc, and store the
1.599 + // old window procedure in its "user data".
1.600 + WNDPROC oldWndProc;
1.601 + if (mUnicodeWidget)
1.602 + oldWndProc = (WNDPROC)::SetWindowLongPtrW(scrollableWnd, GWLP_WNDPROC,
1.603 + (LONG_PTR)nsWindow::WindowProc);
1.604 + else
1.605 + oldWndProc = (WNDPROC)::SetWindowLongPtrA(scrollableWnd, GWLP_WNDPROC,
1.606 + (LONG_PTR)nsWindow::WindowProc);
1.607 + ::SetWindowLongPtrW(scrollableWnd, GWLP_USERDATA, (LONG_PTR)oldWndProc);
1.608 + }
1.609 +
1.610 + SubclassWindow(TRUE);
1.611 +
1.612 + IMEHandler::InitInputContext(this, mInputContext);
1.613 +
1.614 + // If the internal variable set by the config.trim_on_minimize pref has not
1.615 + // been initialized, and if this is the hidden window (conveniently created
1.616 + // before any visible windows, and after the profile has been initialized),
1.617 + // do some initialization work.
1.618 + if (sTrimOnMinimize == 2 && mWindowType == eWindowType_invisible) {
1.619 + // Our internal trim prevention logic is effective on 2K/XP at maintaining
1.620 + // the working set when windows are minimized, but on Vista and up it has
1.621 + // little to no effect. Since this feature has been the source of numerous
1.622 + // bugs over the years, disable it (sTrimOnMinimize=1) on Vista and up.
1.623 + sTrimOnMinimize =
1.624 + Preferences::GetBool("config.trim_on_minimize",
1.625 + IsVistaOrLater() ? 1 : 0);
1.626 + sSwitchKeyboardLayout =
1.627 + Preferences::GetBool("intl.keyboard.per_window_layout", false);
1.628 + }
1.629 +
1.630 + // Query for command button metric data for rendering the titlebar. We
1.631 + // only do this once on the first window.
1.632 + if (mWindowType == eWindowType_toplevel &&
1.633 + (!nsUXThemeData::sTitlebarInfoPopulatedThemed ||
1.634 + !nsUXThemeData::sTitlebarInfoPopulatedAero)) {
1.635 + nsUXThemeData::UpdateTitlebarInfo(mWnd);
1.636 + }
1.637 + return NS_OK;
1.638 +}
1.639 +
1.640 +// Close this nsWindow
1.641 +NS_METHOD nsWindow::Destroy()
1.642 +{
1.643 + // WM_DESTROY has already fired, avoid calling it twice
1.644 + if (mOnDestroyCalled)
1.645 + return NS_OK;
1.646 +
1.647 + // Don't destroy windows that have file pickers open, we'll tear these down
1.648 + // later once the picker is closed.
1.649 + mDestroyCalled = true;
1.650 + if (mPickerDisplayCount)
1.651 + return NS_OK;
1.652 +
1.653 + // During the destruction of all of our children, make sure we don't get deleted.
1.654 + nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
1.655 +
1.656 + /**
1.657 + * On windows the LayerManagerOGL destructor wants the widget to be around for
1.658 + * cleanup. It also would like to have the HWND intact, so we nullptr it here.
1.659 + */
1.660 + if (mLayerManager) {
1.661 + mLayerManager->Destroy();
1.662 + }
1.663 + mLayerManager = nullptr;
1.664 +
1.665 + /* We should clear our cached resources now and not wait for the GC to
1.666 + * delete the nsWindow. */
1.667 + ClearCachedResources();
1.668 +
1.669 + // The DestroyWindow function destroys the specified window. The function sends WM_DESTROY
1.670 + // and WM_NCDESTROY messages to the window to deactivate it and remove the keyboard focus
1.671 + // from it. The function also destroys the window's menu, flushes the thread message queue,
1.672 + // destroys timers, removes clipboard ownership, and breaks the clipboard viewer chain (if
1.673 + // the window is at the top of the viewer chain).
1.674 + //
1.675 + // If the specified window is a parent or owner window, DestroyWindow automatically destroys
1.676 + // the associated child or owned windows when it destroys the parent or owner window. The
1.677 + // function first destroys child or owned windows, and then it destroys the parent or owner
1.678 + // window.
1.679 + VERIFY(::DestroyWindow(mWnd));
1.680 +
1.681 + // Our windows can be subclassed which may prevent us receiving WM_DESTROY. If OnDestroy()
1.682 + // didn't get called, call it now.
1.683 + if (false == mOnDestroyCalled) {
1.684 + MSGResult msgResult;
1.685 + mWindowHook.Notify(mWnd, WM_DESTROY, 0, 0, msgResult);
1.686 + OnDestroy();
1.687 + }
1.688 +
1.689 + return NS_OK;
1.690 +}
1.691 +
1.692 +/**************************************************************
1.693 + *
1.694 + * SECTION: Window class utilities
1.695 + *
1.696 + * Utilities for calculating the proper window class name for
1.697 + * Create window.
1.698 + *
1.699 + **************************************************************/
1.700 +
1.701 +void nsWindow::RegisterWindowClass(const nsString& aClassName, UINT aExtraStyle,
1.702 + LPWSTR aIconID)
1.703 +{
1.704 + WNDCLASSW wc;
1.705 + if (::GetClassInfoW(nsToolkit::mDllInstance, aClassName.get(), &wc)) {
1.706 + // already registered
1.707 + return;
1.708 + }
1.709 +
1.710 + wc.style = CS_DBLCLKS | aExtraStyle;
1.711 + wc.lpfnWndProc = ::DefWindowProcW;
1.712 + wc.cbClsExtra = 0;
1.713 + wc.cbWndExtra = 0;
1.714 + wc.hInstance = nsToolkit::mDllInstance;
1.715 + wc.hIcon = aIconID ? ::LoadIconW(::GetModuleHandleW(nullptr), aIconID) : nullptr;
1.716 + wc.hCursor = nullptr;
1.717 + wc.hbrBackground = mBrush;
1.718 + wc.lpszMenuName = nullptr;
1.719 + wc.lpszClassName = aClassName.get();
1.720 +
1.721 + if (!::RegisterClassW(&wc)) {
1.722 + // For older versions of Win32 (i.e., not XP), the registration may
1.723 + // fail with aExtraStyle, so we have to re-register without it.
1.724 + wc.style = CS_DBLCLKS;
1.725 + ::RegisterClassW(&wc);
1.726 + }
1.727 +}
1.728 +
1.729 +static LPWSTR const gStockApplicationIcon = MAKEINTRESOURCEW(32512);
1.730 +
1.731 +// Return the proper window class for everything except popups.
1.732 +void nsWindow::GetWindowClass(nsString& aWindowClass)
1.733 +{
1.734 + switch (mWindowType) {
1.735 + case eWindowType_invisible:
1.736 + aWindowClass.AssignLiteral(kClassNameHidden);
1.737 + RegisterWindowClass(aWindowClass, 0, gStockApplicationIcon);
1.738 + break;
1.739 + case eWindowType_dialog:
1.740 + aWindowClass.AssignLiteral(kClassNameDialog);
1.741 + RegisterWindowClass(aWindowClass, 0, 0);
1.742 + break;
1.743 + default:
1.744 + GetMainWindowClass(aWindowClass);
1.745 + RegisterWindowClass(aWindowClass, 0, gStockApplicationIcon);
1.746 + break;
1.747 + }
1.748 +}
1.749 +
1.750 +// Return the proper popup window class
1.751 +void nsWindow::GetWindowPopupClass(nsString& aWindowClass)
1.752 +{
1.753 + aWindowClass.AssignLiteral(kClassNameDropShadow);
1.754 + RegisterWindowClass(aWindowClass, CS_XP_DROPSHADOW, gStockApplicationIcon);
1.755 +}
1.756 +
1.757 +/**************************************************************
1.758 + *
1.759 + * SECTION: Window styles utilities
1.760 + *
1.761 + * Return the proper windows styles and extended styles.
1.762 + *
1.763 + **************************************************************/
1.764 +
1.765 +// Return nsWindow styles
1.766 +DWORD nsWindow::WindowStyle()
1.767 +{
1.768 + DWORD style;
1.769 +
1.770 + switch (mWindowType) {
1.771 + case eWindowType_plugin:
1.772 + case eWindowType_child:
1.773 + style = WS_OVERLAPPED;
1.774 + break;
1.775 +
1.776 + case eWindowType_dialog:
1.777 + style = WS_OVERLAPPED | WS_BORDER | WS_DLGFRAME | WS_SYSMENU | DS_3DLOOK |
1.778 + DS_MODALFRAME | WS_CLIPCHILDREN;
1.779 + if (mBorderStyle != eBorderStyle_default)
1.780 + style |= WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX;
1.781 + break;
1.782 +
1.783 + case eWindowType_popup:
1.784 + style = WS_POPUP;
1.785 + if (!HasGlass()) {
1.786 + style |= WS_OVERLAPPED;
1.787 + }
1.788 + break;
1.789 +
1.790 + default:
1.791 + NS_ERROR("unknown border style");
1.792 + // fall through
1.793 +
1.794 + case eWindowType_toplevel:
1.795 + case eWindowType_invisible:
1.796 + style = WS_OVERLAPPED | WS_BORDER | WS_DLGFRAME | WS_SYSMENU |
1.797 + WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_CLIPCHILDREN;
1.798 + break;
1.799 + }
1.800 +
1.801 + if (mBorderStyle != eBorderStyle_default && mBorderStyle != eBorderStyle_all) {
1.802 + if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_border))
1.803 + style &= ~WS_BORDER;
1.804 +
1.805 + if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_title)) {
1.806 + style &= ~WS_DLGFRAME;
1.807 + style |= WS_POPUP;
1.808 + style &= ~WS_CHILD;
1.809 + }
1.810 +
1.811 + if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_close))
1.812 + style &= ~0;
1.813 + // XXX The close box can only be removed by changing the window class,
1.814 + // as far as I know --- roc+moz@cs.cmu.edu
1.815 +
1.816 + if (mBorderStyle == eBorderStyle_none ||
1.817 + !(mBorderStyle & (eBorderStyle_menu | eBorderStyle_close)))
1.818 + style &= ~WS_SYSMENU;
1.819 + // Looks like getting rid of the system menu also does away with the
1.820 + // close box. So, we only get rid of the system menu if you want neither it
1.821 + // nor the close box. How does the Windows "Dialog" window class get just
1.822 + // closebox and no sysmenu? Who knows.
1.823 +
1.824 + if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_resizeh))
1.825 + style &= ~WS_THICKFRAME;
1.826 +
1.827 + if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_minimize))
1.828 + style &= ~WS_MINIMIZEBOX;
1.829 +
1.830 + if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_maximize))
1.831 + style &= ~WS_MAXIMIZEBOX;
1.832 +
1.833 + if (IsPopupWithTitleBar()) {
1.834 + style |= WS_CAPTION;
1.835 + if (mBorderStyle & eBorderStyle_close) {
1.836 + style |= WS_SYSMENU;
1.837 + }
1.838 + }
1.839 + }
1.840 +
1.841 + VERIFY_WINDOW_STYLE(style);
1.842 + return style;
1.843 +}
1.844 +
1.845 +// Return nsWindow extended styles
1.846 +DWORD nsWindow::WindowExStyle()
1.847 +{
1.848 + switch (mWindowType)
1.849 + {
1.850 + case eWindowType_plugin:
1.851 + case eWindowType_child:
1.852 + return 0;
1.853 +
1.854 + case eWindowType_dialog:
1.855 + return WS_EX_WINDOWEDGE | WS_EX_DLGMODALFRAME;
1.856 +
1.857 + case eWindowType_popup:
1.858 + {
1.859 + DWORD extendedStyle = WS_EX_TOOLWINDOW;
1.860 + if (mPopupLevel == ePopupLevelTop)
1.861 + extendedStyle |= WS_EX_TOPMOST;
1.862 + return extendedStyle;
1.863 + }
1.864 + default:
1.865 + NS_ERROR("unknown border style");
1.866 + // fall through
1.867 +
1.868 + case eWindowType_toplevel:
1.869 + case eWindowType_invisible:
1.870 + return WS_EX_WINDOWEDGE;
1.871 + }
1.872 +}
1.873 +
1.874 +/**************************************************************
1.875 + *
1.876 + * SECTION: Window subclassing utilities
1.877 + *
1.878 + * Set or clear window subclasses on native windows. Used in
1.879 + * Create and Destroy.
1.880 + *
1.881 + **************************************************************/
1.882 +
1.883 +// Subclass (or remove the subclass from) this component's nsWindow
1.884 +void nsWindow::SubclassWindow(BOOL bState)
1.885 +{
1.886 + if (bState) {
1.887 + if (!mWnd || !IsWindow(mWnd)) {
1.888 + NS_ERROR("Invalid window handle");
1.889 + }
1.890 +
1.891 + if (mUnicodeWidget) {
1.892 + mPrevWndProc =
1.893 + reinterpret_cast<WNDPROC>(
1.894 + SetWindowLongPtrW(mWnd,
1.895 + GWLP_WNDPROC,
1.896 + reinterpret_cast<LONG_PTR>(nsWindow::WindowProc)));
1.897 + } else {
1.898 + mPrevWndProc =
1.899 + reinterpret_cast<WNDPROC>(
1.900 + SetWindowLongPtrA(mWnd,
1.901 + GWLP_WNDPROC,
1.902 + reinterpret_cast<LONG_PTR>(nsWindow::WindowProc)));
1.903 + }
1.904 + NS_ASSERTION(mPrevWndProc, "Null standard window procedure");
1.905 + // connect the this pointer to the nsWindow handle
1.906 + WinUtils::SetNSWindowBasePtr(mWnd, this);
1.907 + } else {
1.908 + if (IsWindow(mWnd)) {
1.909 + if (mUnicodeWidget) {
1.910 + SetWindowLongPtrW(mWnd,
1.911 + GWLP_WNDPROC,
1.912 + reinterpret_cast<LONG_PTR>(mPrevWndProc));
1.913 + } else {
1.914 + SetWindowLongPtrA(mWnd,
1.915 + GWLP_WNDPROC,
1.916 + reinterpret_cast<LONG_PTR>(mPrevWndProc));
1.917 + }
1.918 + }
1.919 + WinUtils::SetNSWindowBasePtr(mWnd, nullptr);
1.920 + mPrevWndProc = nullptr;
1.921 + }
1.922 +}
1.923 +
1.924 +/**************************************************************
1.925 + *
1.926 + * SECTION: nsIWidget::SetParent, nsIWidget::GetParent
1.927 + *
1.928 + * Set or clear the parent widgets using window properties, and
1.929 + * handles calculating native parent handles.
1.930 + *
1.931 + **************************************************************/
1.932 +
1.933 +// Get and set parent widgets
1.934 +NS_IMETHODIMP nsWindow::SetParent(nsIWidget *aNewParent)
1.935 +{
1.936 + mParent = aNewParent;
1.937 +
1.938 + nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
1.939 + nsIWidget* parent = GetParent();
1.940 + if (parent) {
1.941 + parent->RemoveChild(this);
1.942 + }
1.943 + if (aNewParent) {
1.944 + ReparentNativeWidget(aNewParent);
1.945 + aNewParent->AddChild(this);
1.946 + return NS_OK;
1.947 + }
1.948 + if (mWnd) {
1.949 + // If we have no parent, SetParent should return the desktop.
1.950 + VERIFY(::SetParent(mWnd, nullptr));
1.951 + }
1.952 + return NS_OK;
1.953 +}
1.954 +
1.955 +NS_IMETHODIMP
1.956 +nsWindow::ReparentNativeWidget(nsIWidget* aNewParent)
1.957 +{
1.958 + NS_PRECONDITION(aNewParent, "");
1.959 +
1.960 + mParent = aNewParent;
1.961 + if (mWindowType == eWindowType_popup) {
1.962 + return NS_OK;
1.963 + }
1.964 + HWND newParent = (HWND)aNewParent->GetNativeData(NS_NATIVE_WINDOW);
1.965 + NS_ASSERTION(newParent, "Parent widget has a null native window handle");
1.966 + if (newParent && mWnd) {
1.967 + ::SetParent(mWnd, newParent);
1.968 + }
1.969 + return NS_OK;
1.970 +}
1.971 +
1.972 +nsIWidget* nsWindow::GetParent(void)
1.973 +{
1.974 + return GetParentWindow(false);
1.975 +}
1.976 +
1.977 +float nsWindow::GetDPI()
1.978 +{
1.979 + HDC dc = ::GetDC(mWnd);
1.980 + if (!dc)
1.981 + return 96.0f;
1.982 +
1.983 + double heightInches = ::GetDeviceCaps(dc, VERTSIZE)/MM_PER_INCH_FLOAT;
1.984 + int heightPx = ::GetDeviceCaps(dc, VERTRES);
1.985 + ::ReleaseDC(mWnd, dc);
1.986 + if (heightInches < 0.25) {
1.987 + // Something's broken
1.988 + return 96.0f;
1.989 + }
1.990 + return float(heightPx/heightInches);
1.991 +}
1.992 +
1.993 +double nsWindow::GetDefaultScaleInternal()
1.994 +{
1.995 + return WinUtils::LogToPhysFactor();
1.996 +}
1.997 +
1.998 +nsWindow*
1.999 +nsWindow::GetParentWindow(bool aIncludeOwner)
1.1000 +{
1.1001 + return static_cast<nsWindow*>(GetParentWindowBase(aIncludeOwner));
1.1002 +}
1.1003 +
1.1004 +nsWindowBase*
1.1005 +nsWindow::GetParentWindowBase(bool aIncludeOwner)
1.1006 +{
1.1007 + if (mIsTopWidgetWindow) {
1.1008 + // Must use a flag instead of mWindowType to tell if the window is the
1.1009 + // owned by the topmost widget, because a child window can be embedded inside
1.1010 + // a HWND which is not associated with a nsIWidget.
1.1011 + return nullptr;
1.1012 + }
1.1013 +
1.1014 + // If this widget has already been destroyed, pretend we have no parent.
1.1015 + // This corresponds to code in Destroy which removes the destroyed
1.1016 + // widget from its parent's child list.
1.1017 + if (mInDtor || mOnDestroyCalled)
1.1018 + return nullptr;
1.1019 +
1.1020 +
1.1021 + // aIncludeOwner set to true implies walking the parent chain to retrieve the
1.1022 + // root owner. aIncludeOwner set to false implies the search will stop at the
1.1023 + // true parent (default).
1.1024 + nsWindow* widget = nullptr;
1.1025 + if (mWnd) {
1.1026 + HWND parent = nullptr;
1.1027 + if (aIncludeOwner)
1.1028 + parent = ::GetParent(mWnd);
1.1029 + else
1.1030 + parent = ::GetAncestor(mWnd, GA_PARENT);
1.1031 +
1.1032 + if (parent) {
1.1033 + widget = WinUtils::GetNSWindowPtr(parent);
1.1034 + if (widget) {
1.1035 + // If the widget is in the process of being destroyed then
1.1036 + // do NOT return it
1.1037 + if (widget->mInDtor) {
1.1038 + widget = nullptr;
1.1039 + }
1.1040 + }
1.1041 + }
1.1042 + }
1.1043 +
1.1044 + return static_cast<nsWindowBase*>(widget);
1.1045 +}
1.1046 +
1.1047 +BOOL CALLBACK
1.1048 +nsWindow::EnumAllChildWindProc(HWND aWnd, LPARAM aParam)
1.1049 +{
1.1050 + nsWindow *wnd = WinUtils::GetNSWindowPtr(aWnd);
1.1051 + if (wnd) {
1.1052 + ((nsWindow::WindowEnumCallback*)aParam)(wnd);
1.1053 + }
1.1054 + return TRUE;
1.1055 +}
1.1056 +
1.1057 +BOOL CALLBACK
1.1058 +nsWindow::EnumAllThreadWindowProc(HWND aWnd, LPARAM aParam)
1.1059 +{
1.1060 + nsWindow *wnd = WinUtils::GetNSWindowPtr(aWnd);
1.1061 + if (wnd) {
1.1062 + ((nsWindow::WindowEnumCallback*)aParam)(wnd);
1.1063 + }
1.1064 + EnumChildWindows(aWnd, EnumAllChildWindProc, aParam);
1.1065 + return TRUE;
1.1066 +}
1.1067 +
1.1068 +void
1.1069 +nsWindow::EnumAllWindows(WindowEnumCallback aCallback)
1.1070 +{
1.1071 + EnumThreadWindows(GetCurrentThreadId(),
1.1072 + EnumAllThreadWindowProc,
1.1073 + (LPARAM)aCallback);
1.1074 +}
1.1075 +
1.1076 +/**************************************************************
1.1077 + *
1.1078 + * SECTION: nsIWidget::Show
1.1079 + *
1.1080 + * Hide or show this component.
1.1081 + *
1.1082 + **************************************************************/
1.1083 +
1.1084 +NS_METHOD nsWindow::Show(bool bState)
1.1085 +{
1.1086 + if (mWindowType == eWindowType_popup) {
1.1087 + // See bug 603793. When we try to draw D3D9/10 windows with a drop shadow
1.1088 + // without the DWM on a secondary monitor, windows fails to composite
1.1089 + // our windows correctly. We therefor switch off the drop shadow for
1.1090 + // pop-up windows when the DWM is disabled and two monitors are
1.1091 + // connected.
1.1092 + if (HasBogusPopupsDropShadowOnMultiMonitor() &&
1.1093 + WinUtils::GetMonitorCount() > 1 &&
1.1094 + !nsUXThemeData::CheckForCompositor())
1.1095 + {
1.1096 + if (sDropShadowEnabled) {
1.1097 + ::SetClassLongA(mWnd, GCL_STYLE, 0);
1.1098 + sDropShadowEnabled = false;
1.1099 + }
1.1100 + } else {
1.1101 + if (!sDropShadowEnabled) {
1.1102 + ::SetClassLongA(mWnd, GCL_STYLE, CS_DROPSHADOW);
1.1103 + sDropShadowEnabled = true;
1.1104 + }
1.1105 + }
1.1106 +
1.1107 + // WS_EX_COMPOSITED conflicts with the WS_EX_LAYERED style and causes
1.1108 + // some popup menus to become invisible.
1.1109 + LONG_PTR exStyle = ::GetWindowLongPtrW(mWnd, GWL_EXSTYLE);
1.1110 + if (exStyle & WS_EX_LAYERED) {
1.1111 + ::SetWindowLongPtrW(mWnd, GWL_EXSTYLE, exStyle & ~WS_EX_COMPOSITED);
1.1112 + }
1.1113 + }
1.1114 +
1.1115 + bool syncInvalidate = false;
1.1116 +
1.1117 + bool wasVisible = mIsVisible;
1.1118 + // Set the status now so that anyone asking during ShowWindow or
1.1119 + // SetWindowPos would get the correct answer.
1.1120 + mIsVisible = bState;
1.1121 +
1.1122 + // We may have cached an out of date visible state. This can happen
1.1123 + // when session restore sets the full screen mode.
1.1124 + if (mIsVisible)
1.1125 + mOldStyle |= WS_VISIBLE;
1.1126 + else
1.1127 + mOldStyle &= ~WS_VISIBLE;
1.1128 +
1.1129 + if (!mIsVisible && wasVisible) {
1.1130 + ClearCachedResources();
1.1131 + }
1.1132 +
1.1133 + if (mWnd) {
1.1134 + if (bState) {
1.1135 + if (!wasVisible && mWindowType == eWindowType_toplevel) {
1.1136 + // speed up the initial paint after show for
1.1137 + // top level windows:
1.1138 + syncInvalidate = true;
1.1139 + switch (mSizeMode) {
1.1140 + case nsSizeMode_Fullscreen:
1.1141 + ::ShowWindow(mWnd, SW_SHOW);
1.1142 + break;
1.1143 + case nsSizeMode_Maximized :
1.1144 + ::ShowWindow(mWnd, SW_SHOWMAXIMIZED);
1.1145 + break;
1.1146 + case nsSizeMode_Minimized :
1.1147 + ::ShowWindow(mWnd, SW_SHOWMINIMIZED);
1.1148 + break;
1.1149 + default:
1.1150 + if (CanTakeFocus()) {
1.1151 + ::ShowWindow(mWnd, SW_SHOWNORMAL);
1.1152 + } else {
1.1153 + // Place the window behind the foreground window
1.1154 + // (as long as it is not topmost)
1.1155 + HWND wndAfter = ::GetForegroundWindow();
1.1156 + if (!wndAfter)
1.1157 + wndAfter = HWND_BOTTOM;
1.1158 + else if (GetWindowLongPtrW(wndAfter, GWL_EXSTYLE) & WS_EX_TOPMOST)
1.1159 + wndAfter = HWND_TOP;
1.1160 + ::SetWindowPos(mWnd, wndAfter, 0, 0, 0, 0, SWP_SHOWWINDOW | SWP_NOSIZE |
1.1161 + SWP_NOMOVE | SWP_NOACTIVATE);
1.1162 + GetAttention(2);
1.1163 + }
1.1164 + break;
1.1165 + }
1.1166 + } else {
1.1167 + DWORD flags = SWP_NOSIZE | SWP_NOMOVE | SWP_SHOWWINDOW;
1.1168 + if (wasVisible)
1.1169 + flags |= SWP_NOZORDER;
1.1170 +
1.1171 + if (mWindowType == eWindowType_popup) {
1.1172 + // ensure popups are the topmost of the TOPMOST
1.1173 + // layer. Remember not to set the SWP_NOZORDER
1.1174 + // flag as that might allow the taskbar to overlap
1.1175 + // the popup.
1.1176 + flags |= SWP_NOACTIVATE;
1.1177 + HWND owner = ::GetWindow(mWnd, GW_OWNER);
1.1178 + ::SetWindowPos(mWnd, owner ? 0 : HWND_TOPMOST, 0, 0, 0, 0, flags);
1.1179 + } else {
1.1180 + if (mWindowType == eWindowType_dialog && !CanTakeFocus())
1.1181 + flags |= SWP_NOACTIVATE;
1.1182 +
1.1183 + ::SetWindowPos(mWnd, HWND_TOP, 0, 0, 0, 0, flags);
1.1184 + }
1.1185 + }
1.1186 +
1.1187 + if (!wasVisible && (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog)) {
1.1188 + // when a toplevel window or dialog is shown, initialize the UI state
1.1189 + ::SendMessageW(mWnd, WM_CHANGEUISTATE, MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL), 0);
1.1190 + }
1.1191 + } else {
1.1192 + // Clear contents to avoid ghosting of old content if we display
1.1193 + // this window again.
1.1194 + if (wasVisible && mTransparencyMode == eTransparencyTransparent) {
1.1195 + ClearTranslucentWindow();
1.1196 + }
1.1197 + if (mWindowType != eWindowType_dialog) {
1.1198 + ::ShowWindow(mWnd, SW_HIDE);
1.1199 + } else {
1.1200 + ::SetWindowPos(mWnd, 0, 0, 0, 0, 0, SWP_HIDEWINDOW | SWP_NOSIZE | SWP_NOMOVE |
1.1201 + SWP_NOZORDER | SWP_NOACTIVATE);
1.1202 + }
1.1203 + }
1.1204 + }
1.1205 +
1.1206 +#ifdef MOZ_XUL
1.1207 + if (!wasVisible && bState) {
1.1208 + Invalidate();
1.1209 + if (syncInvalidate && !mInDtor && !mOnDestroyCalled) {
1.1210 + ::UpdateWindow(mWnd);
1.1211 + }
1.1212 + }
1.1213 +#endif
1.1214 +
1.1215 + return NS_OK;
1.1216 +}
1.1217 +
1.1218 +/**************************************************************
1.1219 + *
1.1220 + * SECTION: nsIWidget::IsVisible
1.1221 + *
1.1222 + * Returns the visibility state.
1.1223 + *
1.1224 + **************************************************************/
1.1225 +
1.1226 +// Return true if the whether the component is visible, false otherwise
1.1227 +bool nsWindow::IsVisible() const
1.1228 +{
1.1229 + return mIsVisible;
1.1230 +}
1.1231 +
1.1232 +/**************************************************************
1.1233 + *
1.1234 + * SECTION: Window clipping utilities
1.1235 + *
1.1236 + * Used in Size and Move operations for setting the proper
1.1237 + * window clipping regions for window transparency.
1.1238 + *
1.1239 + **************************************************************/
1.1240 +
1.1241 +// XP and Vista visual styles sometimes require window clipping regions to be applied for proper
1.1242 +// transparency. These routines are called on size and move operations.
1.1243 +void nsWindow::ClearThemeRegion()
1.1244 +{
1.1245 + if (IsVistaOrLater() && !HasGlass() &&
1.1246 + (mWindowType == eWindowType_popup && !IsPopupWithTitleBar() &&
1.1247 + (mPopupType == ePopupTypeTooltip || mPopupType == ePopupTypePanel))) {
1.1248 + SetWindowRgn(mWnd, nullptr, false);
1.1249 + }
1.1250 +}
1.1251 +
1.1252 +void nsWindow::SetThemeRegion()
1.1253 +{
1.1254 + // Popup types that have a visual styles region applied (bug 376408). This can be expanded
1.1255 + // for other window types as needed. The regions are applied generically to the base window
1.1256 + // so default constants are used for part and state. At some point we might need part and
1.1257 + // state values from nsNativeThemeWin's GetThemePartAndState, but currently windows that
1.1258 + // change shape based on state haven't come up.
1.1259 + if (IsVistaOrLater() && !HasGlass() &&
1.1260 + (mWindowType == eWindowType_popup && !IsPopupWithTitleBar() &&
1.1261 + (mPopupType == ePopupTypeTooltip || mPopupType == ePopupTypePanel))) {
1.1262 + HRGN hRgn = nullptr;
1.1263 + RECT rect = {0,0,mBounds.width,mBounds.height};
1.1264 +
1.1265 + HDC dc = ::GetDC(mWnd);
1.1266 + GetThemeBackgroundRegion(nsUXThemeData::GetTheme(eUXTooltip), dc, TTP_STANDARD, TS_NORMAL, &rect, &hRgn);
1.1267 + if (hRgn) {
1.1268 + if (!SetWindowRgn(mWnd, hRgn, false)) // do not delete or alter hRgn if accepted.
1.1269 + DeleteObject(hRgn);
1.1270 + }
1.1271 + ::ReleaseDC(mWnd, dc);
1.1272 + }
1.1273 +}
1.1274 +
1.1275 +/**************************************************************
1.1276 + *
1.1277 + * SECTION: nsIWidget::RegisterTouchWindow,
1.1278 + * nsIWidget::UnregisterTouchWindow, and helper functions
1.1279 + *
1.1280 + * Used to register the native window to receive touch events
1.1281 + *
1.1282 + **************************************************************/
1.1283 +
1.1284 +NS_METHOD nsWindow::RegisterTouchWindow() {
1.1285 + if (Preferences::GetInt("dom.w3c_touch_events.enabled", 0) ||
1.1286 + gIsPointerEventsEnabled) {
1.1287 + mTouchWindow = true;
1.1288 + mGesture.RegisterTouchWindow(mWnd);
1.1289 + ::EnumChildWindows(mWnd, nsWindow::RegisterTouchForDescendants, 0);
1.1290 + }
1.1291 + return NS_OK;
1.1292 +}
1.1293 +
1.1294 +NS_METHOD nsWindow::UnregisterTouchWindow() {
1.1295 + mTouchWindow = false;
1.1296 + mGesture.UnregisterTouchWindow(mWnd);
1.1297 + ::EnumChildWindows(mWnd, nsWindow::UnregisterTouchForDescendants, 0);
1.1298 + return NS_OK;
1.1299 +}
1.1300 +
1.1301 +BOOL CALLBACK nsWindow::RegisterTouchForDescendants(HWND aWnd, LPARAM aMsg) {
1.1302 + nsWindow* win = WinUtils::GetNSWindowPtr(aWnd);
1.1303 + if (win)
1.1304 + win->mGesture.RegisterTouchWindow(aWnd);
1.1305 + return TRUE;
1.1306 +}
1.1307 +
1.1308 +BOOL CALLBACK nsWindow::UnregisterTouchForDescendants(HWND aWnd, LPARAM aMsg) {
1.1309 + nsWindow* win = WinUtils::GetNSWindowPtr(aWnd);
1.1310 + if (win)
1.1311 + win->mGesture.UnregisterTouchWindow(aWnd);
1.1312 + return TRUE;
1.1313 +}
1.1314 +
1.1315 +/**************************************************************
1.1316 + *
1.1317 + * SECTION: nsIWidget::Move, nsIWidget::Resize,
1.1318 + * nsIWidget::Size, nsIWidget::BeginResizeDrag
1.1319 + *
1.1320 + * Repositioning and sizing a window.
1.1321 + *
1.1322 + **************************************************************/
1.1323 +
1.1324 +void
1.1325 +nsWindow::SetSizeConstraints(const SizeConstraints& aConstraints)
1.1326 +{
1.1327 + SizeConstraints c = aConstraints;
1.1328 + if (mWindowType != eWindowType_popup) {
1.1329 + c.mMinSize.width = std::max(int32_t(::GetSystemMetrics(SM_CXMINTRACK)), c.mMinSize.width);
1.1330 + c.mMinSize.height = std::max(int32_t(::GetSystemMetrics(SM_CYMINTRACK)), c.mMinSize.height);
1.1331 + }
1.1332 +
1.1333 + nsBaseWidget::SetSizeConstraints(c);
1.1334 +}
1.1335 +
1.1336 +// Move this component
1.1337 +NS_METHOD nsWindow::Move(double aX, double aY)
1.1338 +{
1.1339 + if (mWindowType == eWindowType_toplevel ||
1.1340 + mWindowType == eWindowType_dialog) {
1.1341 + SetSizeMode(nsSizeMode_Normal);
1.1342 + }
1.1343 +
1.1344 + // for top-level windows only, convert coordinates from global display pixels
1.1345 + // (the "parent" coordinate space) to the window's device pixel space
1.1346 + CSSToLayoutDeviceScale scale = BoundsUseDisplayPixels() ? GetDefaultScale()
1.1347 + : CSSToLayoutDeviceScale(1.0);
1.1348 + int32_t x = NSToIntRound(aX * scale.scale);
1.1349 + int32_t y = NSToIntRound(aY * scale.scale);
1.1350 +
1.1351 + // Check to see if window needs to be moved first
1.1352 + // to avoid a costly call to SetWindowPos. This check
1.1353 + // can not be moved to the calling code in nsView, because
1.1354 + // some platforms do not position child windows correctly
1.1355 +
1.1356 + // Only perform this check for non-popup windows, since the positioning can
1.1357 + // in fact change even when the x/y do not. We always need to perform the
1.1358 + // check. See bug #97805 for details.
1.1359 + if (mWindowType != eWindowType_popup && (mBounds.x == x) && (mBounds.y == y))
1.1360 + {
1.1361 + // Nothing to do, since it is already positioned correctly.
1.1362 + return NS_OK;
1.1363 + }
1.1364 +
1.1365 + mBounds.x = x;
1.1366 + mBounds.y = y;
1.1367 +
1.1368 + if (mWnd) {
1.1369 +#ifdef DEBUG
1.1370 + // complain if a window is moved offscreen (legal, but potentially worrisome)
1.1371 + if (mIsTopWidgetWindow) { // only a problem for top-level windows
1.1372 + // Make sure this window is actually on the screen before we move it
1.1373 + // XXX: Needs multiple monitor support
1.1374 + HDC dc = ::GetDC(mWnd);
1.1375 + if (dc) {
1.1376 + if (::GetDeviceCaps(dc, TECHNOLOGY) == DT_RASDISPLAY) {
1.1377 + RECT workArea;
1.1378 + ::SystemParametersInfo(SPI_GETWORKAREA, 0, &workArea, 0);
1.1379 + // no annoying assertions. just mention the issue.
1.1380 + if (x < 0 || x >= workArea.right || y < 0 || y >= workArea.bottom) {
1.1381 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.1382 + ("window moved to offscreen position\n"));
1.1383 + }
1.1384 + }
1.1385 + ::ReleaseDC(mWnd, dc);
1.1386 + }
1.1387 + }
1.1388 +#endif
1.1389 + ClearThemeRegion();
1.1390 +
1.1391 + UINT flags = SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOSIZE;
1.1392 + // Workaround SetWindowPos bug with D3D9. If our window has a clip
1.1393 + // region, some drivers or OSes may incorrectly copy into the clipped-out
1.1394 + // area.
1.1395 + if (mWindowType == eWindowType_plugin &&
1.1396 + (!mLayerManager || mLayerManager->GetBackendType() == LayersBackend::LAYERS_D3D9) &&
1.1397 + mClipRects &&
1.1398 + (mClipRectCount != 1 || !mClipRects[0].IsEqualInterior(nsIntRect(0, 0, mBounds.width, mBounds.height)))) {
1.1399 + flags |= SWP_NOCOPYBITS;
1.1400 + }
1.1401 + VERIFY(::SetWindowPos(mWnd, nullptr, x, y, 0, 0, flags));
1.1402 +
1.1403 + SetThemeRegion();
1.1404 + }
1.1405 + NotifyRollupGeometryChange();
1.1406 + return NS_OK;
1.1407 +}
1.1408 +
1.1409 +// Resize this component
1.1410 +NS_METHOD nsWindow::Resize(double aWidth, double aHeight, bool aRepaint)
1.1411 +{
1.1412 + // for top-level windows only, convert coordinates from global display pixels
1.1413 + // (the "parent" coordinate space) to the window's device pixel space
1.1414 + CSSToLayoutDeviceScale scale = BoundsUseDisplayPixels() ? GetDefaultScale()
1.1415 + : CSSToLayoutDeviceScale(1.0);
1.1416 + int32_t width = NSToIntRound(aWidth * scale.scale);
1.1417 + int32_t height = NSToIntRound(aHeight * scale.scale);
1.1418 +
1.1419 + NS_ASSERTION((width >= 0) , "Negative width passed to nsWindow::Resize");
1.1420 + NS_ASSERTION((height >= 0), "Negative height passed to nsWindow::Resize");
1.1421 +
1.1422 + ConstrainSize(&width, &height);
1.1423 +
1.1424 + // Avoid unnecessary resizing calls
1.1425 + if (mBounds.width == width && mBounds.height == height) {
1.1426 + if (aRepaint) {
1.1427 + Invalidate();
1.1428 + }
1.1429 + return NS_OK;
1.1430 + }
1.1431 +
1.1432 +#ifdef MOZ_XUL
1.1433 + if (eTransparencyTransparent == mTransparencyMode)
1.1434 + ResizeTranslucentWindow(width, height);
1.1435 +#endif
1.1436 +
1.1437 + // Set cached value for lightweight and printing
1.1438 + mBounds.width = width;
1.1439 + mBounds.height = height;
1.1440 +
1.1441 + if (mWnd) {
1.1442 + UINT flags = SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE;
1.1443 +
1.1444 + if (!aRepaint) {
1.1445 + flags |= SWP_NOREDRAW;
1.1446 + }
1.1447 +
1.1448 + ClearThemeRegion();
1.1449 + VERIFY(::SetWindowPos(mWnd, nullptr, 0, 0,
1.1450 + width, GetHeight(height), flags));
1.1451 + SetThemeRegion();
1.1452 + }
1.1453 +
1.1454 + if (aRepaint)
1.1455 + Invalidate();
1.1456 +
1.1457 + NotifyRollupGeometryChange();
1.1458 + return NS_OK;
1.1459 +}
1.1460 +
1.1461 +// Resize this component
1.1462 +NS_METHOD nsWindow::Resize(double aX, double aY, double aWidth, double aHeight, bool aRepaint)
1.1463 +{
1.1464 + // for top-level windows only, convert coordinates from global display pixels
1.1465 + // (the "parent" coordinate space) to the window's device pixel space
1.1466 + CSSToLayoutDeviceScale scale = BoundsUseDisplayPixels() ? GetDefaultScale()
1.1467 + : CSSToLayoutDeviceScale(1.0);
1.1468 + int32_t x = NSToIntRound(aX * scale.scale);
1.1469 + int32_t y = NSToIntRound(aY * scale.scale);
1.1470 + int32_t width = NSToIntRound(aWidth * scale.scale);
1.1471 + int32_t height = NSToIntRound(aHeight * scale.scale);
1.1472 +
1.1473 + NS_ASSERTION((width >= 0), "Negative width passed to nsWindow::Resize");
1.1474 + NS_ASSERTION((height >= 0), "Negative height passed to nsWindow::Resize");
1.1475 +
1.1476 + ConstrainSize(&width, &height);
1.1477 +
1.1478 + // Avoid unnecessary resizing calls
1.1479 + if (mBounds.x == x && mBounds.y == y &&
1.1480 + mBounds.width == width && mBounds.height == height) {
1.1481 + if (aRepaint) {
1.1482 + Invalidate();
1.1483 + }
1.1484 + return NS_OK;
1.1485 + }
1.1486 +
1.1487 +#ifdef MOZ_XUL
1.1488 + if (eTransparencyTransparent == mTransparencyMode)
1.1489 + ResizeTranslucentWindow(width, height);
1.1490 +#endif
1.1491 +
1.1492 + // Set cached value for lightweight and printing
1.1493 + mBounds.x = x;
1.1494 + mBounds.y = y;
1.1495 + mBounds.width = width;
1.1496 + mBounds.height = height;
1.1497 +
1.1498 + if (mWnd) {
1.1499 + UINT flags = SWP_NOZORDER | SWP_NOACTIVATE;
1.1500 + if (!aRepaint) {
1.1501 + flags |= SWP_NOREDRAW;
1.1502 + }
1.1503 +
1.1504 + ClearThemeRegion();
1.1505 + VERIFY(::SetWindowPos(mWnd, nullptr, x, y,
1.1506 + width, GetHeight(height), flags));
1.1507 + SetThemeRegion();
1.1508 + }
1.1509 +
1.1510 + if (aRepaint)
1.1511 + Invalidate();
1.1512 +
1.1513 + NotifyRollupGeometryChange();
1.1514 + return NS_OK;
1.1515 +}
1.1516 +
1.1517 +NS_IMETHODIMP
1.1518 +nsWindow::BeginResizeDrag(WidgetGUIEvent* aEvent,
1.1519 + int32_t aHorizontal,
1.1520 + int32_t aVertical)
1.1521 +{
1.1522 + NS_ENSURE_ARG_POINTER(aEvent);
1.1523 +
1.1524 + if (aEvent->eventStructType != NS_MOUSE_EVENT) {
1.1525 + // you can only begin a resize drag with a mouse event
1.1526 + return NS_ERROR_INVALID_ARG;
1.1527 + }
1.1528 +
1.1529 + if (aEvent->AsMouseEvent()->button != WidgetMouseEvent::eLeftButton) {
1.1530 + // you can only begin a resize drag with the left mouse button
1.1531 + return NS_ERROR_INVALID_ARG;
1.1532 + }
1.1533 +
1.1534 + // work out what sizemode we're talking about
1.1535 + WPARAM syscommand;
1.1536 + if (aVertical < 0) {
1.1537 + if (aHorizontal < 0) {
1.1538 + syscommand = SC_SIZE | WMSZ_TOPLEFT;
1.1539 + } else if (aHorizontal == 0) {
1.1540 + syscommand = SC_SIZE | WMSZ_TOP;
1.1541 + } else {
1.1542 + syscommand = SC_SIZE | WMSZ_TOPRIGHT;
1.1543 + }
1.1544 + } else if (aVertical == 0) {
1.1545 + if (aHorizontal < 0) {
1.1546 + syscommand = SC_SIZE | WMSZ_LEFT;
1.1547 + } else if (aHorizontal == 0) {
1.1548 + return NS_ERROR_INVALID_ARG;
1.1549 + } else {
1.1550 + syscommand = SC_SIZE | WMSZ_RIGHT;
1.1551 + }
1.1552 + } else {
1.1553 + if (aHorizontal < 0) {
1.1554 + syscommand = SC_SIZE | WMSZ_BOTTOMLEFT;
1.1555 + } else if (aHorizontal == 0) {
1.1556 + syscommand = SC_SIZE | WMSZ_BOTTOM;
1.1557 + } else {
1.1558 + syscommand = SC_SIZE | WMSZ_BOTTOMRIGHT;
1.1559 + }
1.1560 + }
1.1561 +
1.1562 + // resizing doesn't work if the mouse is already captured
1.1563 + CaptureMouse(false);
1.1564 +
1.1565 + // find the top-level window
1.1566 + HWND toplevelWnd = WinUtils::GetTopLevelHWND(mWnd, true);
1.1567 +
1.1568 + // tell Windows to start the resize
1.1569 + ::PostMessage(toplevelWnd, WM_SYSCOMMAND, syscommand,
1.1570 + POINTTOPOINTS(aEvent->refPoint));
1.1571 +
1.1572 + return NS_OK;
1.1573 +}
1.1574 +
1.1575 +/**************************************************************
1.1576 + *
1.1577 + * SECTION: Window Z-order and state.
1.1578 + *
1.1579 + * nsIWidget::PlaceBehind, nsIWidget::SetSizeMode,
1.1580 + * nsIWidget::ConstrainPosition
1.1581 + *
1.1582 + * Z-order, positioning, restore, minimize, and maximize.
1.1583 + *
1.1584 + **************************************************************/
1.1585 +
1.1586 +// Position the window behind the given window
1.1587 +NS_METHOD nsWindow::PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
1.1588 + nsIWidget *aWidget, bool aActivate)
1.1589 +{
1.1590 + HWND behind = HWND_TOP;
1.1591 + if (aPlacement == eZPlacementBottom)
1.1592 + behind = HWND_BOTTOM;
1.1593 + else if (aPlacement == eZPlacementBelow && aWidget)
1.1594 + behind = (HWND)aWidget->GetNativeData(NS_NATIVE_WINDOW);
1.1595 + UINT flags = SWP_NOMOVE | SWP_NOREPOSITION | SWP_NOSIZE;
1.1596 + if (!aActivate)
1.1597 + flags |= SWP_NOACTIVATE;
1.1598 +
1.1599 + if (!CanTakeFocus() && behind == HWND_TOP)
1.1600 + {
1.1601 + // Can't place the window to top so place it behind the foreground window
1.1602 + // (as long as it is not topmost)
1.1603 + HWND wndAfter = ::GetForegroundWindow();
1.1604 + if (!wndAfter)
1.1605 + behind = HWND_BOTTOM;
1.1606 + else if (!(GetWindowLongPtrW(wndAfter, GWL_EXSTYLE) & WS_EX_TOPMOST))
1.1607 + behind = wndAfter;
1.1608 + flags |= SWP_NOACTIVATE;
1.1609 + }
1.1610 +
1.1611 + ::SetWindowPos(mWnd, behind, 0, 0, 0, 0, flags);
1.1612 + return NS_OK;
1.1613 +}
1.1614 +
1.1615 +// Maximize, minimize or restore the window.
1.1616 +NS_IMETHODIMP nsWindow::SetSizeMode(int32_t aMode) {
1.1617 +
1.1618 + nsresult rv;
1.1619 +
1.1620 + // Let's not try and do anything if we're already in that state.
1.1621 + // (This is needed to prevent problems when calling window.minimize(), which
1.1622 + // calls us directly, and then the OS triggers another call to us.)
1.1623 + if (aMode == mSizeMode)
1.1624 + return NS_OK;
1.1625 +
1.1626 + // save the requested state
1.1627 + mLastSizeMode = mSizeMode;
1.1628 + rv = nsBaseWidget::SetSizeMode(aMode);
1.1629 + if (NS_SUCCEEDED(rv) && mIsVisible) {
1.1630 + int mode;
1.1631 +
1.1632 + switch (aMode) {
1.1633 + case nsSizeMode_Fullscreen :
1.1634 + mode = SW_SHOW;
1.1635 + break;
1.1636 +
1.1637 + case nsSizeMode_Maximized :
1.1638 + mode = SW_MAXIMIZE;
1.1639 + break;
1.1640 +
1.1641 + case nsSizeMode_Minimized :
1.1642 + // Using SW_SHOWMINIMIZED prevents the working set from being trimmed but
1.1643 + // keeps the window active in the tray. So after the window is minimized,
1.1644 + // windows will fire WM_WINDOWPOSCHANGED (OnWindowPosChanged) at which point
1.1645 + // we will do some additional processing to get the active window set right.
1.1646 + // If sTrimOnMinimize is set, we let windows handle minimization normally
1.1647 + // using SW_MINIMIZE.
1.1648 + mode = sTrimOnMinimize ? SW_MINIMIZE : SW_SHOWMINIMIZED;
1.1649 + break;
1.1650 +
1.1651 + default :
1.1652 + mode = SW_RESTORE;
1.1653 + }
1.1654 +
1.1655 + WINDOWPLACEMENT pl;
1.1656 + pl.length = sizeof(pl);
1.1657 + ::GetWindowPlacement(mWnd, &pl);
1.1658 + // Don't call ::ShowWindow if we're trying to "restore" a window that is
1.1659 + // already in a normal state. Prevents a bug where snapping to one side
1.1660 + // of the screen and then minimizing would cause Windows to forget our
1.1661 + // window's correct restored position/size.
1.1662 + if( !(pl.showCmd == SW_SHOWNORMAL && mode == SW_RESTORE) ) {
1.1663 + ::ShowWindow(mWnd, mode);
1.1664 + }
1.1665 + // we activate here to ensure that the right child window is focused
1.1666 + if (mode == SW_MAXIMIZE || mode == SW_SHOW)
1.1667 + DispatchFocusToTopLevelWindow(true);
1.1668 + }
1.1669 + return rv;
1.1670 +}
1.1671 +
1.1672 +// Constrain a potential move to fit onscreen
1.1673 +// Position (aX, aY) is specified in Windows screen (logical) pixels
1.1674 +NS_METHOD nsWindow::ConstrainPosition(bool aAllowSlop,
1.1675 + int32_t *aX, int32_t *aY)
1.1676 +{
1.1677 + if (!mIsTopWidgetWindow) // only a problem for top-level windows
1.1678 + return NS_OK;
1.1679 +
1.1680 + double dpiScale = GetDefaultScale().scale;
1.1681 +
1.1682 + // we need to use the window size in logical screen pixels
1.1683 + int32_t logWidth = std::max<int32_t>(NSToIntRound(mBounds.width / dpiScale), 1);
1.1684 + int32_t logHeight = std::max<int32_t>(NSToIntRound(mBounds.height / dpiScale), 1);
1.1685 +
1.1686 + bool doConstrain = false; // whether we have enough info to do anything
1.1687 +
1.1688 + /* get our playing field. use the current screen, or failing that
1.1689 + for any reason, use device caps for the default screen. */
1.1690 + RECT screenRect;
1.1691 +
1.1692 + nsCOMPtr<nsIScreenManager> screenmgr = do_GetService(sScreenManagerContractID);
1.1693 + if (screenmgr) {
1.1694 + nsCOMPtr<nsIScreen> screen;
1.1695 + int32_t left, top, width, height;
1.1696 +
1.1697 + screenmgr->ScreenForRect(*aX, *aY, logWidth, logHeight,
1.1698 + getter_AddRefs(screen));
1.1699 + if (screen) {
1.1700 + if (mSizeMode != nsSizeMode_Fullscreen) {
1.1701 + // For normalized windows, use the desktop work area.
1.1702 + screen->GetAvailRectDisplayPix(&left, &top, &width, &height);
1.1703 + } else {
1.1704 + // For full screen windows, use the desktop.
1.1705 + screen->GetRectDisplayPix(&left, &top, &width, &height);
1.1706 + }
1.1707 + screenRect.left = left;
1.1708 + screenRect.right = left + width;
1.1709 + screenRect.top = top;
1.1710 + screenRect.bottom = top + height;
1.1711 + doConstrain = true;
1.1712 + }
1.1713 + } else {
1.1714 + if (mWnd) {
1.1715 + HDC dc = ::GetDC(mWnd);
1.1716 + if (dc) {
1.1717 + if (::GetDeviceCaps(dc, TECHNOLOGY) == DT_RASDISPLAY) {
1.1718 + if (mSizeMode != nsSizeMode_Fullscreen) {
1.1719 + ::SystemParametersInfo(SPI_GETWORKAREA, 0, &screenRect, 0);
1.1720 + } else {
1.1721 + screenRect.left = screenRect.top = 0;
1.1722 + screenRect.right = GetSystemMetrics(SM_CXFULLSCREEN);
1.1723 + screenRect.bottom = GetSystemMetrics(SM_CYFULLSCREEN);
1.1724 + }
1.1725 + doConstrain = true;
1.1726 + }
1.1727 + ::ReleaseDC(mWnd, dc);
1.1728 + }
1.1729 + }
1.1730 + }
1.1731 +
1.1732 + if (aAllowSlop) {
1.1733 + if (*aX < screenRect.left - logWidth + kWindowPositionSlop)
1.1734 + *aX = screenRect.left - logWidth + kWindowPositionSlop;
1.1735 + else if (*aX >= screenRect.right - kWindowPositionSlop)
1.1736 + *aX = screenRect.right - kWindowPositionSlop;
1.1737 +
1.1738 + if (*aY < screenRect.top - logHeight + kWindowPositionSlop)
1.1739 + *aY = screenRect.top - logHeight + kWindowPositionSlop;
1.1740 + else if (*aY >= screenRect.bottom - kWindowPositionSlop)
1.1741 + *aY = screenRect.bottom - kWindowPositionSlop;
1.1742 +
1.1743 + } else {
1.1744 +
1.1745 + if (*aX < screenRect.left)
1.1746 + *aX = screenRect.left;
1.1747 + else if (*aX >= screenRect.right - logWidth)
1.1748 + *aX = screenRect.right - logWidth;
1.1749 +
1.1750 + if (*aY < screenRect.top)
1.1751 + *aY = screenRect.top;
1.1752 + else if (*aY >= screenRect.bottom - logHeight)
1.1753 + *aY = screenRect.bottom - logHeight;
1.1754 + }
1.1755 +
1.1756 + return NS_OK;
1.1757 +}
1.1758 +
1.1759 +/**************************************************************
1.1760 + *
1.1761 + * SECTION: nsIWidget::Enable, nsIWidget::IsEnabled
1.1762 + *
1.1763 + * Enabling and disabling the widget.
1.1764 + *
1.1765 + **************************************************************/
1.1766 +
1.1767 +// Enable/disable this component
1.1768 +NS_METHOD nsWindow::Enable(bool bState)
1.1769 +{
1.1770 + if (mWnd) {
1.1771 + ::EnableWindow(mWnd, bState);
1.1772 + }
1.1773 + return NS_OK;
1.1774 +}
1.1775 +
1.1776 +// Return the current enable state
1.1777 +bool nsWindow::IsEnabled() const
1.1778 +{
1.1779 + return !mWnd ||
1.1780 + (::IsWindowEnabled(mWnd) &&
1.1781 + ::IsWindowEnabled(::GetAncestor(mWnd, GA_ROOT)));
1.1782 +}
1.1783 +
1.1784 +
1.1785 +/**************************************************************
1.1786 + *
1.1787 + * SECTION: nsIWidget::SetFocus
1.1788 + *
1.1789 + * Give the focus to this widget.
1.1790 + *
1.1791 + **************************************************************/
1.1792 +
1.1793 +NS_METHOD nsWindow::SetFocus(bool aRaise)
1.1794 +{
1.1795 + if (mWnd) {
1.1796 +#ifdef WINSTATE_DEBUG_OUTPUT
1.1797 + if (mWnd == WinUtils::GetTopLevelHWND(mWnd)) {
1.1798 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.1799 + ("*** SetFocus: [ top] raise=%d\n", aRaise));
1.1800 + } else {
1.1801 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.1802 + ("*** SetFocus: [child] raise=%d\n", aRaise));
1.1803 + }
1.1804 +#endif
1.1805 + // Uniconify, if necessary
1.1806 + HWND toplevelWnd = WinUtils::GetTopLevelHWND(mWnd);
1.1807 + if (aRaise && ::IsIconic(toplevelWnd)) {
1.1808 + ::ShowWindow(toplevelWnd, SW_RESTORE);
1.1809 + }
1.1810 + ::SetFocus(mWnd);
1.1811 + }
1.1812 + return NS_OK;
1.1813 +}
1.1814 +
1.1815 +
1.1816 +/**************************************************************
1.1817 + *
1.1818 + * SECTION: Bounds
1.1819 + *
1.1820 + * GetBounds, GetClientBounds, GetScreenBounds, GetClientOffset
1.1821 + * SetDrawsInTitlebar, GetNonClientMargins, SetNonClientMargins
1.1822 + *
1.1823 + * Bound calculations.
1.1824 + *
1.1825 + **************************************************************/
1.1826 +
1.1827 +// Return the window's full dimensions in screen coordinates.
1.1828 +// If the window has a parent, converts the origin to an offset
1.1829 +// of the parent's screen origin.
1.1830 +NS_METHOD nsWindow::GetBounds(nsIntRect &aRect)
1.1831 +{
1.1832 + if (mWnd) {
1.1833 + RECT r;
1.1834 + VERIFY(::GetWindowRect(mWnd, &r));
1.1835 +
1.1836 + // assign size
1.1837 + aRect.width = r.right - r.left;
1.1838 + aRect.height = r.bottom - r.top;
1.1839 +
1.1840 + // popup window bounds' are in screen coordinates, not relative to parent
1.1841 + // window
1.1842 + if (mWindowType == eWindowType_popup) {
1.1843 + aRect.x = r.left;
1.1844 + aRect.y = r.top;
1.1845 + return NS_OK;
1.1846 + }
1.1847 +
1.1848 + // chrome on parent:
1.1849 + // ___ 5,5 (chrome start)
1.1850 + // | ____ 10,10 (client start)
1.1851 + // | | ____ 20,20 (child start)
1.1852 + // | | |
1.1853 + // 20,20 - 5,5 = 15,15 (??)
1.1854 + // minus GetClientOffset:
1.1855 + // 15,15 - 5,5 = 10,10
1.1856 + //
1.1857 + // no chrome on parent:
1.1858 + // ______ 10,10 (win start)
1.1859 + // | ____ 20,20 (child start)
1.1860 + // | |
1.1861 + // 20,20 - 10,10 = 10,10
1.1862 + //
1.1863 + // walking the chain:
1.1864 + // ___ 5,5 (chrome start)
1.1865 + // | ___ 10,10 (client start)
1.1866 + // | | ___ 20,20 (child start)
1.1867 + // | | | __ 30,30 (child start)
1.1868 + // | | | |
1.1869 + // 30,30 - 20,20 = 10,10 (offset from second child to first)
1.1870 + // 20,20 - 5,5 = 15,15 + 10,10 = 25,25 (??)
1.1871 + // minus GetClientOffset:
1.1872 + // 25,25 - 5,5 = 20,20 (offset from second child to parent client)
1.1873 +
1.1874 + // convert coordinates if parent exists
1.1875 + HWND parent = ::GetParent(mWnd);
1.1876 + if (parent) {
1.1877 + RECT pr;
1.1878 + VERIFY(::GetWindowRect(parent, &pr));
1.1879 + r.left -= pr.left;
1.1880 + r.top -= pr.top;
1.1881 + // adjust for chrome
1.1882 + nsWindow* pWidget = static_cast<nsWindow*>(GetParent());
1.1883 + if (pWidget && pWidget->IsTopLevelWidget()) {
1.1884 + nsIntPoint clientOffset = pWidget->GetClientOffset();
1.1885 + r.left -= clientOffset.x;
1.1886 + r.top -= clientOffset.y;
1.1887 + }
1.1888 + }
1.1889 + aRect.x = r.left;
1.1890 + aRect.y = r.top;
1.1891 + } else {
1.1892 + aRect = mBounds;
1.1893 + }
1.1894 + return NS_OK;
1.1895 +}
1.1896 +
1.1897 +// Get this component dimension
1.1898 +NS_METHOD nsWindow::GetClientBounds(nsIntRect &aRect)
1.1899 +{
1.1900 + if (mWnd) {
1.1901 + RECT r;
1.1902 + VERIFY(::GetClientRect(mWnd, &r));
1.1903 +
1.1904 + nsIntRect bounds;
1.1905 + GetBounds(bounds);
1.1906 + aRect.MoveTo(bounds.TopLeft() + GetClientOffset());
1.1907 + aRect.width = r.right - r.left;
1.1908 + aRect.height = r.bottom - r.top;
1.1909 +
1.1910 + } else {
1.1911 + aRect.SetRect(0,0,0,0);
1.1912 + }
1.1913 + return NS_OK;
1.1914 +}
1.1915 +
1.1916 +// Like GetBounds, but don't offset by the parent
1.1917 +NS_METHOD nsWindow::GetScreenBounds(nsIntRect &aRect)
1.1918 +{
1.1919 + if (mWnd) {
1.1920 + RECT r;
1.1921 + VERIFY(::GetWindowRect(mWnd, &r));
1.1922 +
1.1923 + aRect.width = r.right - r.left;
1.1924 + aRect.height = r.bottom - r.top;
1.1925 + aRect.x = r.left;
1.1926 + aRect.y = r.top;
1.1927 + } else
1.1928 + aRect = mBounds;
1.1929 +
1.1930 + return NS_OK;
1.1931 +}
1.1932 +
1.1933 +// return the x,y offset of the client area from the origin
1.1934 +// of the window. If the window is borderless returns (0,0).
1.1935 +nsIntPoint nsWindow::GetClientOffset()
1.1936 +{
1.1937 + if (!mWnd) {
1.1938 + return nsIntPoint(0, 0);
1.1939 + }
1.1940 +
1.1941 + RECT r1;
1.1942 + GetWindowRect(mWnd, &r1);
1.1943 + nsIntPoint pt = WidgetToScreenOffset();
1.1944 + return nsIntPoint(pt.x - r1.left, pt.y - r1.top);
1.1945 +}
1.1946 +
1.1947 +void
1.1948 +nsWindow::SetDrawsInTitlebar(bool aState)
1.1949 +{
1.1950 + nsWindow * window = GetTopLevelWindow(true);
1.1951 + if (window && window != this) {
1.1952 + return window->SetDrawsInTitlebar(aState);
1.1953 + }
1.1954 +
1.1955 + if (aState) {
1.1956 + // top, right, bottom, left for nsIntMargin
1.1957 + nsIntMargin margins(0, -1, -1, -1);
1.1958 + SetNonClientMargins(margins);
1.1959 + }
1.1960 + else {
1.1961 + nsIntMargin margins(-1, -1, -1, -1);
1.1962 + SetNonClientMargins(margins);
1.1963 + }
1.1964 +}
1.1965 +
1.1966 +NS_IMETHODIMP
1.1967 +nsWindow::GetNonClientMargins(nsIntMargin &margins)
1.1968 +{
1.1969 + nsWindow * window = GetTopLevelWindow(true);
1.1970 + if (window && window != this) {
1.1971 + return window->GetNonClientMargins(margins);
1.1972 + }
1.1973 +
1.1974 + if (mCustomNonClient) {
1.1975 + margins = mNonClientMargins;
1.1976 + return NS_OK;
1.1977 + }
1.1978 +
1.1979 + margins.top = GetSystemMetrics(SM_CYCAPTION);
1.1980 + margins.bottom = GetSystemMetrics(SM_CYFRAME);
1.1981 + margins.top += margins.bottom;
1.1982 + margins.left = margins.right = GetSystemMetrics(SM_CXFRAME);
1.1983 +
1.1984 + return NS_OK;
1.1985 +}
1.1986 +
1.1987 +void
1.1988 +nsWindow::ResetLayout()
1.1989 +{
1.1990 + // This will trigger a frame changed event, triggering
1.1991 + // nc calc size and a sizemode gecko event.
1.1992 + SetWindowPos(mWnd, 0, 0, 0, 0, 0,
1.1993 + SWP_FRAMECHANGED|SWP_NOACTIVATE|SWP_NOMOVE|
1.1994 + SWP_NOOWNERZORDER|SWP_NOSIZE|SWP_NOZORDER);
1.1995 +
1.1996 + // If hidden, just send the frame changed event for now.
1.1997 + if (!mIsVisible)
1.1998 + return;
1.1999 +
1.2000 + // Send a gecko size event to trigger reflow.
1.2001 + RECT clientRc = {0};
1.2002 + GetClientRect(mWnd, &clientRc);
1.2003 + nsIntRect evRect(WinUtils::ToIntRect(clientRc));
1.2004 + OnResize(evRect);
1.2005 +
1.2006 + // Invalidate and update
1.2007 + Invalidate();
1.2008 +}
1.2009 +
1.2010 +// Internally track the caption status via a window property. Required
1.2011 +// due to our internal handling of WM_NCACTIVATE when custom client
1.2012 +// margins are set.
1.2013 +static const wchar_t kManageWindowInfoProperty[] = L"ManageWindowInfoProperty";
1.2014 +typedef BOOL (WINAPI *GetWindowInfoPtr)(HWND hwnd, PWINDOWINFO pwi);
1.2015 +static GetWindowInfoPtr sGetWindowInfoPtrStub = nullptr;
1.2016 +
1.2017 +BOOL WINAPI
1.2018 +GetWindowInfoHook(HWND hWnd, PWINDOWINFO pwi)
1.2019 +{
1.2020 + if (!sGetWindowInfoPtrStub) {
1.2021 + NS_ASSERTION(FALSE, "Something is horribly wrong in GetWindowInfoHook!");
1.2022 + return FALSE;
1.2023 + }
1.2024 + int windowStatus =
1.2025 + reinterpret_cast<LONG_PTR>(GetPropW(hWnd, kManageWindowInfoProperty));
1.2026 + // No property set, return the default data.
1.2027 + if (!windowStatus)
1.2028 + return sGetWindowInfoPtrStub(hWnd, pwi);
1.2029 + // Call GetWindowInfo and update dwWindowStatus with our
1.2030 + // internally tracked value.
1.2031 + BOOL result = sGetWindowInfoPtrStub(hWnd, pwi);
1.2032 + if (result && pwi)
1.2033 + pwi->dwWindowStatus = (windowStatus == 1 ? 0 : WS_ACTIVECAPTION);
1.2034 + return result;
1.2035 +}
1.2036 +
1.2037 +void
1.2038 +nsWindow::UpdateGetWindowInfoCaptionStatus(bool aActiveCaption)
1.2039 +{
1.2040 + if (!mWnd)
1.2041 + return;
1.2042 +
1.2043 + if (!sGetWindowInfoPtrStub) {
1.2044 + sUser32Intercept.Init("user32.dll");
1.2045 + if (!sUser32Intercept.AddHook("GetWindowInfo", reinterpret_cast<intptr_t>(GetWindowInfoHook),
1.2046 + (void**) &sGetWindowInfoPtrStub))
1.2047 + return;
1.2048 + }
1.2049 + // Update our internally tracked caption status
1.2050 + SetPropW(mWnd, kManageWindowInfoProperty,
1.2051 + reinterpret_cast<HANDLE>(static_cast<int>(aActiveCaption) + 1));
1.2052 +}
1.2053 +
1.2054 +/**
1.2055 + * Called when the window layout changes: full screen mode transitions,
1.2056 + * theme changes, and composition changes. Calculates the new non-client
1.2057 + * margins and fires off a frame changed event, which triggers an nc calc
1.2058 + * size windows event, kicking the changes in.
1.2059 + *
1.2060 + * The offsets calculated here are based on the value of `mNonClientMargins`
1.2061 + * which is specified in the "chromemargins" attribute of the window. For
1.2062 + * each margin, the value specified has the following meaning:
1.2063 + * -1 - leave the default frame in place
1.2064 + * 0 - remove the frame
1.2065 + * >0 - frame size equals min(0, (default frame size - margin value))
1.2066 + *
1.2067 + * This function calculates and populates `mNonClientOffset`.
1.2068 + * In our processing of `WM_NCCALCSIZE`, the frame size will be calculated
1.2069 + * as (default frame size - offset). For example, if the left frame should
1.2070 + * be 1 pixel narrower than the default frame size, `mNonClientOffset.left`
1.2071 + * will equal 1.
1.2072 + *
1.2073 + * For maximized, fullscreen, and minimized windows, the values stored in
1.2074 + * `mNonClientMargins` are ignored, and special processing takes place.
1.2075 + *
1.2076 + * For non-glass windows, we only allow frames to be their default size
1.2077 + * or removed entirely.
1.2078 + */
1.2079 +bool
1.2080 +nsWindow::UpdateNonClientMargins(int32_t aSizeMode, bool aReflowWindow)
1.2081 +{
1.2082 + if (!mCustomNonClient)
1.2083 + return false;
1.2084 +
1.2085 + if (aSizeMode == -1) {
1.2086 + aSizeMode = mSizeMode;
1.2087 + }
1.2088 +
1.2089 + bool hasCaption = (mBorderStyle
1.2090 + & (eBorderStyle_all
1.2091 + | eBorderStyle_title
1.2092 + | eBorderStyle_menu
1.2093 + | eBorderStyle_default));
1.2094 +
1.2095 + // mCaptionHeight is the default size of the NC area at
1.2096 + // the top of the window. If the window has a caption,
1.2097 + // the size is calculated as the sum of:
1.2098 + // SM_CYFRAME - The thickness of the sizing border
1.2099 + // around a resizable window
1.2100 + // SM_CXPADDEDBORDER - The amount of border padding
1.2101 + // for captioned windows
1.2102 + // SM_CYCAPTION - The height of the caption area
1.2103 + //
1.2104 + // If the window does not have a caption, mCaptionHeight will be equal to
1.2105 + // `GetSystemMetrics(SM_CYFRAME)`
1.2106 + mCaptionHeight = GetSystemMetrics(SM_CYFRAME)
1.2107 + + (hasCaption ? GetSystemMetrics(SM_CYCAPTION)
1.2108 + + GetSystemMetrics(SM_CXPADDEDBORDER)
1.2109 + : 0);
1.2110 +
1.2111 + // mHorResizeMargin is the size of the default NC areas on the
1.2112 + // left and right sides of our window. It is calculated as
1.2113 + // the sum of:
1.2114 + // SM_CXFRAME - The thickness of the sizing border
1.2115 + // SM_CXPADDEDBORDER - The amount of border padding
1.2116 + // for captioned windows
1.2117 + //
1.2118 + // If the window does not have a caption, mHorResizeMargin will be equal to
1.2119 + // `GetSystemMetrics(SM_CXFRAME)`
1.2120 + mHorResizeMargin = GetSystemMetrics(SM_CXFRAME)
1.2121 + + (hasCaption ? GetSystemMetrics(SM_CXPADDEDBORDER) : 0);
1.2122 +
1.2123 + // mVertResizeMargin is the size of the default NC area at the
1.2124 + // bottom of the window. It is calculated as the sum of:
1.2125 + // SM_CYFRAME - The thickness of the sizing border
1.2126 + // SM_CXPADDEDBORDER - The amount of border padding
1.2127 + // for captioned windows.
1.2128 + //
1.2129 + // If the window does not have a caption, mVertResizeMargin will be equal to
1.2130 + // `GetSystemMetrics(SM_CYFRAME)`
1.2131 + mVertResizeMargin = GetSystemMetrics(SM_CYFRAME)
1.2132 + + (hasCaption ? GetSystemMetrics(SM_CXPADDEDBORDER) : 0);
1.2133 +
1.2134 + if (aSizeMode == nsSizeMode_Minimized) {
1.2135 + // Use default frame size for minimized windows
1.2136 + mNonClientOffset.top = 0;
1.2137 + mNonClientOffset.left = 0;
1.2138 + mNonClientOffset.right = 0;
1.2139 + mNonClientOffset.bottom = 0;
1.2140 + } else if (aSizeMode == nsSizeMode_Fullscreen) {
1.2141 + // Remove the default frame from the top of our fullscreen window. This
1.2142 + // makes the whole caption part of our client area, allowing us to draw
1.2143 + // in the whole caption area. Additionally remove the default frame from
1.2144 + // the left, right, and bottom.
1.2145 + mNonClientOffset.top = mCaptionHeight;
1.2146 + mNonClientOffset.bottom = mVertResizeMargin;
1.2147 + mNonClientOffset.left = mHorResizeMargin;
1.2148 + mNonClientOffset.right = mHorResizeMargin;
1.2149 + } else if (aSizeMode == nsSizeMode_Maximized) {
1.2150 + // Remove the default frame from the top of our maximized window. This
1.2151 + // makes the whole caption part of our client area, allowing us to draw
1.2152 + // in the whole caption area. Use default frame size on left, right, and
1.2153 + // bottom. The reason this works is that, for maximized windows,
1.2154 + // Windows positions them so that their frames fall off the screen.
1.2155 + // This gives the illusion of windows having no frames when they are
1.2156 + // maximized. If we try to mess with the frame sizes by setting these
1.2157 + // offsets to positive values, our client area will fall off the screen.
1.2158 + mNonClientOffset.top = mCaptionHeight;
1.2159 + mNonClientOffset.bottom = 0;
1.2160 + mNonClientOffset.left = 0;
1.2161 + mNonClientOffset.right = 0;
1.2162 +
1.2163 + APPBARDATA appBarData;
1.2164 + appBarData.cbSize = sizeof(appBarData);
1.2165 + UINT taskbarState = SHAppBarMessage(ABM_GETSTATE, &appBarData);
1.2166 + if (ABS_AUTOHIDE & taskbarState) {
1.2167 + UINT edge = -1;
1.2168 + appBarData.hWnd = FindWindow(L"Shell_TrayWnd", nullptr);
1.2169 + if (appBarData.hWnd) {
1.2170 + HMONITOR taskbarMonitor = ::MonitorFromWindow(appBarData.hWnd,
1.2171 + MONITOR_DEFAULTTOPRIMARY);
1.2172 + HMONITOR windowMonitor = ::MonitorFromWindow(mWnd,
1.2173 + MONITOR_DEFAULTTONEAREST);
1.2174 + if (taskbarMonitor == windowMonitor) {
1.2175 + SHAppBarMessage(ABM_GETTASKBARPOS, &appBarData);
1.2176 + edge = appBarData.uEdge;
1.2177 + }
1.2178 + }
1.2179 +
1.2180 + if (ABE_LEFT == edge) {
1.2181 + mNonClientOffset.left -= 1;
1.2182 + } else if (ABE_RIGHT == edge) {
1.2183 + mNonClientOffset.right -= 1;
1.2184 + } else if (ABE_BOTTOM == edge || ABE_TOP == edge) {
1.2185 + mNonClientOffset.bottom -= 1;
1.2186 + }
1.2187 + }
1.2188 + } else {
1.2189 + bool glass = nsUXThemeData::CheckForCompositor();
1.2190 +
1.2191 + // We're dealing with a "normal" window (not maximized, minimized, or
1.2192 + // fullscreen), so process `mNonClientMargins` and set `mNonClientOffset`
1.2193 + // accordingly.
1.2194 + //
1.2195 + // Setting `mNonClientOffset` to 0 has the effect of leaving the default
1.2196 + // frame intact. Setting it to a value greater than 0 reduces the frame
1.2197 + // size by that amount.
1.2198 +
1.2199 + if (mNonClientMargins.top > 0 && glass) {
1.2200 + mNonClientOffset.top = std::min(mCaptionHeight, mNonClientMargins.top);
1.2201 + } else if (mNonClientMargins.top == 0) {
1.2202 + mNonClientOffset.top = mCaptionHeight;
1.2203 + } else {
1.2204 + mNonClientOffset.top = 0;
1.2205 + }
1.2206 +
1.2207 + if (mNonClientMargins.bottom > 0 && glass) {
1.2208 + mNonClientOffset.bottom = std::min(mVertResizeMargin, mNonClientMargins.bottom);
1.2209 + } else if (mNonClientMargins.bottom == 0) {
1.2210 + mNonClientOffset.bottom = mVertResizeMargin;
1.2211 + } else {
1.2212 + mNonClientOffset.bottom = 0;
1.2213 + }
1.2214 +
1.2215 + if (mNonClientMargins.left > 0 && glass) {
1.2216 + mNonClientOffset.left = std::min(mHorResizeMargin, mNonClientMargins.left);
1.2217 + } else if (mNonClientMargins.left == 0) {
1.2218 + mNonClientOffset.left = mHorResizeMargin;
1.2219 + } else {
1.2220 + mNonClientOffset.left = 0;
1.2221 + }
1.2222 +
1.2223 + if (mNonClientMargins.right > 0 && glass) {
1.2224 + mNonClientOffset.right = std::min(mHorResizeMargin, mNonClientMargins.right);
1.2225 + } else if (mNonClientMargins.right == 0) {
1.2226 + mNonClientOffset.right = mHorResizeMargin;
1.2227 + } else {
1.2228 + mNonClientOffset.right = 0;
1.2229 + }
1.2230 + }
1.2231 +
1.2232 + if (aReflowWindow) {
1.2233 + // Force a reflow of content based on the new client
1.2234 + // dimensions.
1.2235 + ResetLayout();
1.2236 + }
1.2237 +
1.2238 + return true;
1.2239 +}
1.2240 +
1.2241 +NS_IMETHODIMP
1.2242 +nsWindow::SetNonClientMargins(nsIntMargin &margins)
1.2243 +{
1.2244 + if (!mIsTopWidgetWindow ||
1.2245 + mBorderStyle & eBorderStyle_none ||
1.2246 + mHideChrome)
1.2247 + return NS_ERROR_INVALID_ARG;
1.2248 +
1.2249 + // Request for a reset
1.2250 + if (margins.top == -1 && margins.left == -1 &&
1.2251 + margins.right == -1 && margins.bottom == -1) {
1.2252 + mCustomNonClient = false;
1.2253 + mNonClientMargins = margins;
1.2254 + // Force a reflow of content based on the new client
1.2255 + // dimensions.
1.2256 + ResetLayout();
1.2257 +
1.2258 + int windowStatus =
1.2259 + reinterpret_cast<LONG_PTR>(GetPropW(mWnd, kManageWindowInfoProperty));
1.2260 + if (windowStatus) {
1.2261 + ::SendMessageW(mWnd, WM_NCACTIVATE, 1 != windowStatus, 0);
1.2262 + }
1.2263 +
1.2264 + return NS_OK;
1.2265 + }
1.2266 +
1.2267 + if (margins.top < -1 || margins.bottom < -1 ||
1.2268 + margins.left < -1 || margins.right < -1)
1.2269 + return NS_ERROR_INVALID_ARG;
1.2270 +
1.2271 + mNonClientMargins = margins;
1.2272 + mCustomNonClient = true;
1.2273 + if (!UpdateNonClientMargins()) {
1.2274 + NS_WARNING("UpdateNonClientMargins failed!");
1.2275 + return NS_OK;
1.2276 + }
1.2277 +
1.2278 + return NS_OK;
1.2279 +}
1.2280 +
1.2281 +void
1.2282 +nsWindow::InvalidateNonClientRegion()
1.2283 +{
1.2284 + // +-+-----------------------+-+
1.2285 + // | | app non-client chrome | |
1.2286 + // | +-----------------------+ |
1.2287 + // | | app client chrome | | }
1.2288 + // | +-----------------------+ | }
1.2289 + // | | app content | | } area we don't want to invalidate
1.2290 + // | +-----------------------+ | }
1.2291 + // | | app client chrome | | }
1.2292 + // | +-----------------------+ |
1.2293 + // +---------------------------+ <
1.2294 + // ^ ^ windows non-client chrome
1.2295 + // client area = app *
1.2296 + RECT rect;
1.2297 + GetWindowRect(mWnd, &rect);
1.2298 + MapWindowPoints(nullptr, mWnd, (LPPOINT)&rect, 2);
1.2299 + HRGN winRgn = CreateRectRgnIndirect(&rect);
1.2300 +
1.2301 + // Subtract app client chrome and app content leaving
1.2302 + // windows non-client chrome and app non-client chrome
1.2303 + // in winRgn.
1.2304 + GetWindowRect(mWnd, &rect);
1.2305 + rect.top += mCaptionHeight;
1.2306 + rect.right -= mHorResizeMargin;
1.2307 + rect.bottom -= mHorResizeMargin;
1.2308 + rect.left += mVertResizeMargin;
1.2309 + MapWindowPoints(nullptr, mWnd, (LPPOINT)&rect, 2);
1.2310 + HRGN clientRgn = CreateRectRgnIndirect(&rect);
1.2311 + CombineRgn(winRgn, winRgn, clientRgn, RGN_DIFF);
1.2312 + DeleteObject(clientRgn);
1.2313 +
1.2314 + // triggers ncpaint and paint events for the two areas
1.2315 + RedrawWindow(mWnd, nullptr, winRgn, RDW_FRAME | RDW_INVALIDATE);
1.2316 + DeleteObject(winRgn);
1.2317 +}
1.2318 +
1.2319 +HRGN
1.2320 +nsWindow::ExcludeNonClientFromPaintRegion(HRGN aRegion)
1.2321 +{
1.2322 + RECT rect;
1.2323 + HRGN rgn = nullptr;
1.2324 + if (aRegion == (HRGN)1) { // undocumented value indicating a full refresh
1.2325 + GetWindowRect(mWnd, &rect);
1.2326 + rgn = CreateRectRgnIndirect(&rect);
1.2327 + } else {
1.2328 + rgn = aRegion;
1.2329 + }
1.2330 + GetClientRect(mWnd, &rect);
1.2331 + MapWindowPoints(mWnd, nullptr, (LPPOINT)&rect, 2);
1.2332 + HRGN nonClientRgn = CreateRectRgnIndirect(&rect);
1.2333 + CombineRgn(rgn, rgn, nonClientRgn, RGN_DIFF);
1.2334 + DeleteObject(nonClientRgn);
1.2335 + return rgn;
1.2336 +}
1.2337 +
1.2338 +/**************************************************************
1.2339 + *
1.2340 + * SECTION: nsIWidget::SetBackgroundColor
1.2341 + *
1.2342 + * Sets the window background paint color.
1.2343 + *
1.2344 + **************************************************************/
1.2345 +
1.2346 +void nsWindow::SetBackgroundColor(const nscolor &aColor)
1.2347 +{
1.2348 + if (mBrush)
1.2349 + ::DeleteObject(mBrush);
1.2350 +
1.2351 + mBrush = ::CreateSolidBrush(NSRGB_2_COLOREF(aColor));
1.2352 + if (mWnd != nullptr) {
1.2353 + ::SetClassLongPtrW(mWnd, GCLP_HBRBACKGROUND, (LONG_PTR)mBrush);
1.2354 + }
1.2355 +}
1.2356 +
1.2357 +/**************************************************************
1.2358 + *
1.2359 + * SECTION: nsIWidget::SetCursor
1.2360 + *
1.2361 + * SetCursor and related utilities for manging cursor state.
1.2362 + *
1.2363 + **************************************************************/
1.2364 +
1.2365 +// Set this component cursor
1.2366 +NS_METHOD nsWindow::SetCursor(nsCursor aCursor)
1.2367 +{
1.2368 + // Only change cursor if it's changing
1.2369 +
1.2370 + //XXX mCursor isn't always right. Scrollbars and others change it, too.
1.2371 + //XXX If we want this optimization we need a better way to do it.
1.2372 + //if (aCursor != mCursor) {
1.2373 + HCURSOR newCursor = nullptr;
1.2374 +
1.2375 + switch (aCursor) {
1.2376 + case eCursor_select:
1.2377 + newCursor = ::LoadCursor(nullptr, IDC_IBEAM);
1.2378 + break;
1.2379 +
1.2380 + case eCursor_wait:
1.2381 + newCursor = ::LoadCursor(nullptr, IDC_WAIT);
1.2382 + break;
1.2383 +
1.2384 + case eCursor_hyperlink:
1.2385 + {
1.2386 + newCursor = ::LoadCursor(nullptr, IDC_HAND);
1.2387 + break;
1.2388 + }
1.2389 +
1.2390 + case eCursor_standard:
1.2391 + case eCursor_context_menu: // XXX See bug 258960.
1.2392 + newCursor = ::LoadCursor(nullptr, IDC_ARROW);
1.2393 + break;
1.2394 +
1.2395 + case eCursor_n_resize:
1.2396 + case eCursor_s_resize:
1.2397 + newCursor = ::LoadCursor(nullptr, IDC_SIZENS);
1.2398 + break;
1.2399 +
1.2400 + case eCursor_w_resize:
1.2401 + case eCursor_e_resize:
1.2402 + newCursor = ::LoadCursor(nullptr, IDC_SIZEWE);
1.2403 + break;
1.2404 +
1.2405 + case eCursor_nw_resize:
1.2406 + case eCursor_se_resize:
1.2407 + newCursor = ::LoadCursor(nullptr, IDC_SIZENWSE);
1.2408 + break;
1.2409 +
1.2410 + case eCursor_ne_resize:
1.2411 + case eCursor_sw_resize:
1.2412 + newCursor = ::LoadCursor(nullptr, IDC_SIZENESW);
1.2413 + break;
1.2414 +
1.2415 + case eCursor_crosshair:
1.2416 + newCursor = ::LoadCursor(nullptr, IDC_CROSS);
1.2417 + break;
1.2418 +
1.2419 + case eCursor_move:
1.2420 + newCursor = ::LoadCursor(nullptr, IDC_SIZEALL);
1.2421 + break;
1.2422 +
1.2423 + case eCursor_help:
1.2424 + newCursor = ::LoadCursor(nullptr, IDC_HELP);
1.2425 + break;
1.2426 +
1.2427 + case eCursor_copy: // CSS3
1.2428 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_COPY));
1.2429 + break;
1.2430 +
1.2431 + case eCursor_alias:
1.2432 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ALIAS));
1.2433 + break;
1.2434 +
1.2435 + case eCursor_cell:
1.2436 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_CELL));
1.2437 + break;
1.2438 +
1.2439 + case eCursor_grab:
1.2440 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_GRAB));
1.2441 + break;
1.2442 +
1.2443 + case eCursor_grabbing:
1.2444 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_GRABBING));
1.2445 + break;
1.2446 +
1.2447 + case eCursor_spinning:
1.2448 + newCursor = ::LoadCursor(nullptr, IDC_APPSTARTING);
1.2449 + break;
1.2450 +
1.2451 + case eCursor_zoom_in:
1.2452 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ZOOMIN));
1.2453 + break;
1.2454 +
1.2455 + case eCursor_zoom_out:
1.2456 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ZOOMOUT));
1.2457 + break;
1.2458 +
1.2459 + case eCursor_not_allowed:
1.2460 + case eCursor_no_drop:
1.2461 + newCursor = ::LoadCursor(nullptr, IDC_NO);
1.2462 + break;
1.2463 +
1.2464 + case eCursor_col_resize:
1.2465 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_COLRESIZE));
1.2466 + break;
1.2467 +
1.2468 + case eCursor_row_resize:
1.2469 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ROWRESIZE));
1.2470 + break;
1.2471 +
1.2472 + case eCursor_vertical_text:
1.2473 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_VERTICALTEXT));
1.2474 + break;
1.2475 +
1.2476 + case eCursor_all_scroll:
1.2477 + // XXX not 100% appropriate perhaps
1.2478 + newCursor = ::LoadCursor(nullptr, IDC_SIZEALL);
1.2479 + break;
1.2480 +
1.2481 + case eCursor_nesw_resize:
1.2482 + newCursor = ::LoadCursor(nullptr, IDC_SIZENESW);
1.2483 + break;
1.2484 +
1.2485 + case eCursor_nwse_resize:
1.2486 + newCursor = ::LoadCursor(nullptr, IDC_SIZENWSE);
1.2487 + break;
1.2488 +
1.2489 + case eCursor_ns_resize:
1.2490 + newCursor = ::LoadCursor(nullptr, IDC_SIZENS);
1.2491 + break;
1.2492 +
1.2493 + case eCursor_ew_resize:
1.2494 + newCursor = ::LoadCursor(nullptr, IDC_SIZEWE);
1.2495 + break;
1.2496 +
1.2497 + case eCursor_none:
1.2498 + newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_NONE));
1.2499 + break;
1.2500 +
1.2501 + default:
1.2502 + NS_ERROR("Invalid cursor type");
1.2503 + break;
1.2504 + }
1.2505 +
1.2506 + if (nullptr != newCursor) {
1.2507 + mCursor = aCursor;
1.2508 + HCURSOR oldCursor = ::SetCursor(newCursor);
1.2509 +
1.2510 + if (sHCursor == oldCursor) {
1.2511 + NS_IF_RELEASE(sCursorImgContainer);
1.2512 + if (sHCursor != nullptr)
1.2513 + ::DestroyIcon(sHCursor);
1.2514 + sHCursor = nullptr;
1.2515 + }
1.2516 + }
1.2517 +
1.2518 + return NS_OK;
1.2519 +}
1.2520 +
1.2521 +// Setting the actual cursor
1.2522 +NS_IMETHODIMP nsWindow::SetCursor(imgIContainer* aCursor,
1.2523 + uint32_t aHotspotX, uint32_t aHotspotY)
1.2524 +{
1.2525 + if (sCursorImgContainer == aCursor && sHCursor) {
1.2526 + ::SetCursor(sHCursor);
1.2527 + return NS_OK;
1.2528 + }
1.2529 +
1.2530 + int32_t width;
1.2531 + int32_t height;
1.2532 +
1.2533 + nsresult rv;
1.2534 + rv = aCursor->GetWidth(&width);
1.2535 + NS_ENSURE_SUCCESS(rv, rv);
1.2536 + rv = aCursor->GetHeight(&height);
1.2537 + NS_ENSURE_SUCCESS(rv, rv);
1.2538 +
1.2539 + // Reject cursors greater than 128 pixels in either direction, to prevent
1.2540 + // spoofing.
1.2541 + // XXX ideally we should rescale. Also, we could modify the API to
1.2542 + // allow trusted content to set larger cursors.
1.2543 + if (width > 128 || height > 128)
1.2544 + return NS_ERROR_NOT_AVAILABLE;
1.2545 +
1.2546 + HCURSOR cursor;
1.2547 + // No scaling
1.2548 + gfxIntSize size(0, 0);
1.2549 + rv = nsWindowGfx::CreateIcon(aCursor, true, aHotspotX, aHotspotY, size, &cursor);
1.2550 + NS_ENSURE_SUCCESS(rv, rv);
1.2551 +
1.2552 + mCursor = nsCursor(-1);
1.2553 + ::SetCursor(cursor);
1.2554 +
1.2555 + NS_IF_RELEASE(sCursorImgContainer);
1.2556 + sCursorImgContainer = aCursor;
1.2557 + NS_ADDREF(sCursorImgContainer);
1.2558 +
1.2559 + if (sHCursor != nullptr)
1.2560 + ::DestroyIcon(sHCursor);
1.2561 + sHCursor = cursor;
1.2562 +
1.2563 + return NS_OK;
1.2564 +}
1.2565 +
1.2566 +/**************************************************************
1.2567 + *
1.2568 + * SECTION: nsIWidget::Get/SetTransparencyMode
1.2569 + *
1.2570 + * Manage the transparency mode of the top-level window
1.2571 + * containing this widget.
1.2572 + *
1.2573 + **************************************************************/
1.2574 +
1.2575 +#ifdef MOZ_XUL
1.2576 +nsTransparencyMode nsWindow::GetTransparencyMode()
1.2577 +{
1.2578 + return GetTopLevelWindow(true)->GetWindowTranslucencyInner();
1.2579 +}
1.2580 +
1.2581 +void nsWindow::SetTransparencyMode(nsTransparencyMode aMode)
1.2582 +{
1.2583 + GetTopLevelWindow(true)->SetWindowTranslucencyInner(aMode);
1.2584 +}
1.2585 +
1.2586 +static const nsIntRegion
1.2587 +RegionFromArray(const nsTArray<nsIntRect>& aRects)
1.2588 +{
1.2589 + nsIntRegion region;
1.2590 + for (uint32_t i = 0; i < aRects.Length(); ++i) {
1.2591 + region.Or(region, aRects[i]);
1.2592 + }
1.2593 + return region;
1.2594 +}
1.2595 +
1.2596 +void nsWindow::UpdateOpaqueRegion(const nsIntRegion &aOpaqueRegion)
1.2597 +{
1.2598 + if (!HasGlass() || GetParent())
1.2599 + return;
1.2600 +
1.2601 + // If there is no opaque region or hidechrome=true, set margins
1.2602 + // to support a full sheet of glass. Comments in MSDN indicate
1.2603 + // all values must be set to -1 to get a full sheet of glass.
1.2604 + MARGINS margins = { -1, -1, -1, -1 };
1.2605 + if (!aOpaqueRegion.IsEmpty()) {
1.2606 + nsIntRect pluginBounds;
1.2607 + for (nsIWidget* child = GetFirstChild(); child; child = child->GetNextSibling()) {
1.2608 + if (child->WindowType() == eWindowType_plugin) {
1.2609 + // Collect the bounds of all plugins for GetLargestRectangle.
1.2610 + nsIntRect childBounds;
1.2611 + child->GetBounds(childBounds);
1.2612 + pluginBounds.UnionRect(pluginBounds, childBounds);
1.2613 + }
1.2614 + }
1.2615 +
1.2616 + nsIntRect clientBounds;
1.2617 + GetClientBounds(clientBounds);
1.2618 +
1.2619 + // Find the largest rectangle and use that to calculate the inset. Our top
1.2620 + // priority is to include the bounds of all plugins.
1.2621 + nsIntRect largest = aOpaqueRegion.GetLargestRectangle(pluginBounds);
1.2622 + margins.cxLeftWidth = largest.x;
1.2623 + margins.cxRightWidth = clientBounds.width - largest.XMost();
1.2624 + margins.cyBottomHeight = clientBounds.height - largest.YMost();
1.2625 + if (mCustomNonClient) {
1.2626 + // The minimum glass height must be the caption buttons height,
1.2627 + // otherwise the buttons are drawn incorrectly.
1.2628 + largest.y = std::max<uint32_t>(largest.y,
1.2629 + nsUXThemeData::sCommandButtons[CMDBUTTONIDX_BUTTONBOX].cy);
1.2630 + }
1.2631 + margins.cyTopHeight = largest.y;
1.2632 + }
1.2633 +
1.2634 + // Only update glass area if there are changes
1.2635 + if (memcmp(&mGlassMargins, &margins, sizeof mGlassMargins)) {
1.2636 + mGlassMargins = margins;
1.2637 + UpdateGlass();
1.2638 + }
1.2639 +}
1.2640 +
1.2641 +void nsWindow::UpdateGlass()
1.2642 +{
1.2643 + MARGINS margins = mGlassMargins;
1.2644 +
1.2645 + // DWMNCRP_USEWINDOWSTYLE - The non-client rendering area is
1.2646 + // rendered based on the window style.
1.2647 + // DWMNCRP_ENABLED - The non-client area rendering is
1.2648 + // enabled; the window style is ignored.
1.2649 + DWMNCRENDERINGPOLICY policy = DWMNCRP_USEWINDOWSTYLE;
1.2650 + switch (mTransparencyMode) {
1.2651 + case eTransparencyBorderlessGlass:
1.2652 + // Only adjust if there is some opaque rectangle
1.2653 + if (margins.cxLeftWidth >= 0) {
1.2654 + margins.cxLeftWidth += kGlassMarginAdjustment;
1.2655 + margins.cyTopHeight += kGlassMarginAdjustment;
1.2656 + margins.cxRightWidth += kGlassMarginAdjustment;
1.2657 + margins.cyBottomHeight += kGlassMarginAdjustment;
1.2658 + }
1.2659 + // Fall through
1.2660 + case eTransparencyGlass:
1.2661 + policy = DWMNCRP_ENABLED;
1.2662 + break;
1.2663 + }
1.2664 +
1.2665 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.2666 + ("glass margins: left:%d top:%d right:%d bottom:%d\n",
1.2667 + margins.cxLeftWidth, margins.cyTopHeight,
1.2668 + margins.cxRightWidth, margins.cyBottomHeight));
1.2669 +
1.2670 + // Extends the window frame behind the client area
1.2671 + if (nsUXThemeData::CheckForCompositor()) {
1.2672 + WinUtils::dwmExtendFrameIntoClientAreaPtr(mWnd, &margins);
1.2673 + WinUtils::dwmSetWindowAttributePtr(mWnd, DWMWA_NCRENDERING_POLICY, &policy, sizeof policy);
1.2674 + }
1.2675 +}
1.2676 +#endif
1.2677 +
1.2678 +/**************************************************************
1.2679 + *
1.2680 + * SECTION: nsIWidget::HideWindowChrome
1.2681 + *
1.2682 + * Show or hide window chrome.
1.2683 + *
1.2684 + **************************************************************/
1.2685 +
1.2686 +NS_IMETHODIMP nsWindow::HideWindowChrome(bool aShouldHide)
1.2687 +{
1.2688 + HWND hwnd = WinUtils::GetTopLevelHWND(mWnd, true);
1.2689 + if (!WinUtils::GetNSWindowPtr(hwnd))
1.2690 + {
1.2691 + NS_WARNING("Trying to hide window decorations in an embedded context");
1.2692 + return NS_ERROR_FAILURE;
1.2693 + }
1.2694 +
1.2695 + if (mHideChrome == aShouldHide)
1.2696 + return NS_OK;
1.2697 +
1.2698 + DWORD_PTR style, exStyle;
1.2699 + mHideChrome = aShouldHide;
1.2700 + if (aShouldHide) {
1.2701 + DWORD_PTR tempStyle = ::GetWindowLongPtrW(hwnd, GWL_STYLE);
1.2702 + DWORD_PTR tempExStyle = ::GetWindowLongPtrW(hwnd, GWL_EXSTYLE);
1.2703 +
1.2704 + style = tempStyle & ~(WS_CAPTION | WS_THICKFRAME);
1.2705 + exStyle = tempExStyle & ~(WS_EX_DLGMODALFRAME | WS_EX_WINDOWEDGE |
1.2706 + WS_EX_CLIENTEDGE | WS_EX_STATICEDGE);
1.2707 +
1.2708 + mOldStyle = tempStyle;
1.2709 + mOldExStyle = tempExStyle;
1.2710 + }
1.2711 + else {
1.2712 + if (!mOldStyle || !mOldExStyle) {
1.2713 + mOldStyle = ::GetWindowLongPtrW(hwnd, GWL_STYLE);
1.2714 + mOldExStyle = ::GetWindowLongPtrW(hwnd, GWL_EXSTYLE);
1.2715 + }
1.2716 +
1.2717 + style = mOldStyle;
1.2718 + exStyle = mOldExStyle;
1.2719 + }
1.2720 +
1.2721 + VERIFY_WINDOW_STYLE(style);
1.2722 + ::SetWindowLongPtrW(hwnd, GWL_STYLE, style);
1.2723 + ::SetWindowLongPtrW(hwnd, GWL_EXSTYLE, exStyle);
1.2724 +
1.2725 + return NS_OK;
1.2726 +}
1.2727 +
1.2728 +/**************************************************************
1.2729 + *
1.2730 + * SECTION: nsWindow::Invalidate
1.2731 + *
1.2732 + * Invalidate an area of the client for painting.
1.2733 + *
1.2734 + **************************************************************/
1.2735 +
1.2736 +// Invalidate this component visible area
1.2737 +NS_METHOD nsWindow::Invalidate(bool aEraseBackground,
1.2738 + bool aUpdateNCArea,
1.2739 + bool aIncludeChildren)
1.2740 +{
1.2741 + if (!mWnd) {
1.2742 + return NS_OK;
1.2743 + }
1.2744 +
1.2745 +#ifdef WIDGET_DEBUG_OUTPUT
1.2746 + debug_DumpInvalidate(stdout,
1.2747 + this,
1.2748 + nullptr,
1.2749 + nsAutoCString("noname"),
1.2750 + (int32_t) mWnd);
1.2751 +#endif // WIDGET_DEBUG_OUTPUT
1.2752 +
1.2753 + DWORD flags = RDW_INVALIDATE;
1.2754 + if (aEraseBackground) {
1.2755 + flags |= RDW_ERASE;
1.2756 + }
1.2757 + if (aUpdateNCArea) {
1.2758 + flags |= RDW_FRAME;
1.2759 + }
1.2760 + if (aIncludeChildren) {
1.2761 + flags |= RDW_ALLCHILDREN;
1.2762 + }
1.2763 +
1.2764 + VERIFY(::RedrawWindow(mWnd, nullptr, nullptr, flags));
1.2765 + return NS_OK;
1.2766 +}
1.2767 +
1.2768 +// Invalidate this component visible area
1.2769 +NS_METHOD nsWindow::Invalidate(const nsIntRect & aRect)
1.2770 +{
1.2771 + if (mWnd)
1.2772 + {
1.2773 +#ifdef WIDGET_DEBUG_OUTPUT
1.2774 + debug_DumpInvalidate(stdout,
1.2775 + this,
1.2776 + &aRect,
1.2777 + nsAutoCString("noname"),
1.2778 + (int32_t) mWnd);
1.2779 +#endif // WIDGET_DEBUG_OUTPUT
1.2780 +
1.2781 + RECT rect;
1.2782 +
1.2783 + rect.left = aRect.x;
1.2784 + rect.top = aRect.y;
1.2785 + rect.right = aRect.x + aRect.width;
1.2786 + rect.bottom = aRect.y + aRect.height;
1.2787 +
1.2788 + VERIFY(::InvalidateRect(mWnd, &rect, FALSE));
1.2789 + }
1.2790 + return NS_OK;
1.2791 +}
1.2792 +
1.2793 +NS_IMETHODIMP
1.2794 +nsWindow::MakeFullScreen(bool aFullScreen)
1.2795 +{
1.2796 + // taskbarInfo will be nullptr pre Windows 7 until Bug 680227 is resolved.
1.2797 + nsCOMPtr<nsIWinTaskbar> taskbarInfo =
1.2798 + do_GetService(NS_TASKBAR_CONTRACTID);
1.2799 +
1.2800 + mFullscreenMode = aFullScreen;
1.2801 + if (aFullScreen) {
1.2802 + if (mSizeMode == nsSizeMode_Fullscreen)
1.2803 + return NS_OK;
1.2804 + mOldSizeMode = mSizeMode;
1.2805 + SetSizeMode(nsSizeMode_Fullscreen);
1.2806 +
1.2807 + // Notify the taskbar that we will be entering full screen mode.
1.2808 + if (taskbarInfo) {
1.2809 + taskbarInfo->PrepareFullScreenHWND(mWnd, TRUE);
1.2810 + }
1.2811 + } else {
1.2812 + SetSizeMode(mOldSizeMode);
1.2813 + }
1.2814 +
1.2815 + UpdateNonClientMargins();
1.2816 +
1.2817 + bool visible = mIsVisible;
1.2818 + if (mOldSizeMode == nsSizeMode_Normal)
1.2819 + Show(false);
1.2820 +
1.2821 + // Will call hide chrome, reposition window. Note this will
1.2822 + // also cache dimensions for restoration, so it should only
1.2823 + // be called once per fullscreen request.
1.2824 + nsresult rv = nsBaseWidget::MakeFullScreen(aFullScreen);
1.2825 +
1.2826 + if (visible) {
1.2827 + Show(true);
1.2828 + Invalidate();
1.2829 + }
1.2830 +
1.2831 + // Notify the taskbar that we have exited full screen mode.
1.2832 + if (!aFullScreen && taskbarInfo) {
1.2833 + taskbarInfo->PrepareFullScreenHWND(mWnd, FALSE);
1.2834 + }
1.2835 +
1.2836 + if (mWidgetListener)
1.2837 + mWidgetListener->SizeModeChanged(mSizeMode);
1.2838 +
1.2839 + return rv;
1.2840 +}
1.2841 +
1.2842 +/**************************************************************
1.2843 + *
1.2844 + * SECTION: Native data storage
1.2845 + *
1.2846 + * nsIWidget::GetNativeData
1.2847 + * nsIWidget::FreeNativeData
1.2848 + *
1.2849 + * Set or clear native data based on a constant.
1.2850 + *
1.2851 + **************************************************************/
1.2852 +
1.2853 +// Return some native data according to aDataType
1.2854 +void* nsWindow::GetNativeData(uint32_t aDataType)
1.2855 +{
1.2856 + nsAutoString className;
1.2857 + switch (aDataType) {
1.2858 + case NS_NATIVE_TMP_WINDOW:
1.2859 + GetWindowClass(className);
1.2860 + return (void*)::CreateWindowExW(mIsRTL ? WS_EX_LAYOUTRTL : 0,
1.2861 + className.get(),
1.2862 + L"",
1.2863 + WS_CHILD,
1.2864 + CW_USEDEFAULT,
1.2865 + CW_USEDEFAULT,
1.2866 + CW_USEDEFAULT,
1.2867 + CW_USEDEFAULT,
1.2868 + mWnd,
1.2869 + nullptr,
1.2870 + nsToolkit::mDllInstance,
1.2871 + nullptr);
1.2872 + case NS_NATIVE_PLUGIN_PORT:
1.2873 + case NS_NATIVE_WIDGET:
1.2874 + case NS_NATIVE_WINDOW:
1.2875 + case NS_NATIVE_SHAREABLE_WINDOW:
1.2876 + return (void*)mWnd;
1.2877 + case NS_NATIVE_GRAPHIC:
1.2878 + // XXX: This is sleezy!! Remember to Release the DC after using it!
1.2879 +#ifdef MOZ_XUL
1.2880 + return (void*)(eTransparencyTransparent == mTransparencyMode) ?
1.2881 + mMemoryDC : ::GetDC(mWnd);
1.2882 +#else
1.2883 + return (void*)::GetDC(mWnd);
1.2884 +#endif
1.2885 +
1.2886 + case NS_NATIVE_TSF_THREAD_MGR:
1.2887 + case NS_NATIVE_TSF_CATEGORY_MGR:
1.2888 + case NS_NATIVE_TSF_DISPLAY_ATTR_MGR:
1.2889 + return IMEHandler::GetNativeData(aDataType);
1.2890 +
1.2891 + default:
1.2892 + break;
1.2893 + }
1.2894 +
1.2895 + return nullptr;
1.2896 +}
1.2897 +
1.2898 +// Free some native data according to aDataType
1.2899 +void nsWindow::FreeNativeData(void * data, uint32_t aDataType)
1.2900 +{
1.2901 + switch (aDataType)
1.2902 + {
1.2903 + case NS_NATIVE_GRAPHIC:
1.2904 +#ifdef MOZ_XUL
1.2905 + if (eTransparencyTransparent != mTransparencyMode)
1.2906 + ::ReleaseDC(mWnd, (HDC)data);
1.2907 +#else
1.2908 + ::ReleaseDC(mWnd, (HDC)data);
1.2909 +#endif
1.2910 + break;
1.2911 + case NS_NATIVE_WIDGET:
1.2912 + case NS_NATIVE_WINDOW:
1.2913 + case NS_NATIVE_PLUGIN_PORT:
1.2914 + break;
1.2915 + default:
1.2916 + break;
1.2917 + }
1.2918 +}
1.2919 +
1.2920 +/**************************************************************
1.2921 + *
1.2922 + * SECTION: nsIWidget::SetTitle
1.2923 + *
1.2924 + * Set the main windows title text.
1.2925 + *
1.2926 + **************************************************************/
1.2927 +
1.2928 +NS_METHOD nsWindow::SetTitle(const nsAString& aTitle)
1.2929 +{
1.2930 + const nsString& strTitle = PromiseFlatString(aTitle);
1.2931 + ::SendMessageW(mWnd, WM_SETTEXT, (WPARAM)0, (LPARAM)(LPCWSTR)strTitle.get());
1.2932 + return NS_OK;
1.2933 +}
1.2934 +
1.2935 +/**************************************************************
1.2936 + *
1.2937 + * SECTION: nsIWidget::SetIcon
1.2938 + *
1.2939 + * Set the main windows icon.
1.2940 + *
1.2941 + **************************************************************/
1.2942 +
1.2943 +NS_METHOD nsWindow::SetIcon(const nsAString& aIconSpec)
1.2944 +{
1.2945 + // Assume the given string is a local identifier for an icon file.
1.2946 +
1.2947 + nsCOMPtr<nsIFile> iconFile;
1.2948 + ResolveIconName(aIconSpec, NS_LITERAL_STRING(".ico"),
1.2949 + getter_AddRefs(iconFile));
1.2950 + if (!iconFile)
1.2951 + return NS_OK; // not an error if icon is not found
1.2952 +
1.2953 + nsAutoString iconPath;
1.2954 + iconFile->GetPath(iconPath);
1.2955 +
1.2956 + // XXX this should use MZLU (see bug 239279)
1.2957 +
1.2958 + ::SetLastError(0);
1.2959 +
1.2960 + HICON bigIcon = (HICON)::LoadImageW(nullptr,
1.2961 + (LPCWSTR)iconPath.get(),
1.2962 + IMAGE_ICON,
1.2963 + ::GetSystemMetrics(SM_CXICON),
1.2964 + ::GetSystemMetrics(SM_CYICON),
1.2965 + LR_LOADFROMFILE );
1.2966 + HICON smallIcon = (HICON)::LoadImageW(nullptr,
1.2967 + (LPCWSTR)iconPath.get(),
1.2968 + IMAGE_ICON,
1.2969 + ::GetSystemMetrics(SM_CXSMICON),
1.2970 + ::GetSystemMetrics(SM_CYSMICON),
1.2971 + LR_LOADFROMFILE );
1.2972 +
1.2973 + if (bigIcon) {
1.2974 + HICON icon = (HICON) ::SendMessageW(mWnd, WM_SETICON, (WPARAM)ICON_BIG, (LPARAM)bigIcon);
1.2975 + if (icon)
1.2976 + ::DestroyIcon(icon);
1.2977 + mIconBig = bigIcon;
1.2978 + }
1.2979 +#ifdef DEBUG_SetIcon
1.2980 + else {
1.2981 + NS_LossyConvertUTF16toASCII cPath(iconPath);
1.2982 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.2983 + ("\nIcon load error; icon=%s, rc=0x%08X\n\n",
1.2984 + cPath.get(), ::GetLastError()));
1.2985 + }
1.2986 +#endif
1.2987 + if (smallIcon) {
1.2988 + HICON icon = (HICON) ::SendMessageW(mWnd, WM_SETICON, (WPARAM)ICON_SMALL, (LPARAM)smallIcon);
1.2989 + if (icon)
1.2990 + ::DestroyIcon(icon);
1.2991 + mIconSmall = smallIcon;
1.2992 + }
1.2993 +#ifdef DEBUG_SetIcon
1.2994 + else {
1.2995 + NS_LossyConvertUTF16toASCII cPath(iconPath);
1.2996 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.2997 + ("\nSmall icon load error; icon=%s, rc=0x%08X\n\n",
1.2998 + cPath.get(), ::GetLastError()));
1.2999 + }
1.3000 +#endif
1.3001 + return NS_OK;
1.3002 +}
1.3003 +
1.3004 +/**************************************************************
1.3005 + *
1.3006 + * SECTION: nsIWidget::WidgetToScreenOffset
1.3007 + *
1.3008 + * Return this widget's origin in screen coordinates.
1.3009 + *
1.3010 + **************************************************************/
1.3011 +
1.3012 +nsIntPoint nsWindow::WidgetToScreenOffset()
1.3013 +{
1.3014 + POINT point;
1.3015 + point.x = 0;
1.3016 + point.y = 0;
1.3017 + ::ClientToScreen(mWnd, &point);
1.3018 + return nsIntPoint(point.x, point.y);
1.3019 +}
1.3020 +
1.3021 +nsIntSize nsWindow::ClientToWindowSize(const nsIntSize& aClientSize)
1.3022 +{
1.3023 + if (mWindowType == eWindowType_popup && !IsPopupWithTitleBar())
1.3024 + return aClientSize;
1.3025 +
1.3026 + // just use (200, 200) as the position
1.3027 + RECT r;
1.3028 + r.left = 200;
1.3029 + r.top = 200;
1.3030 + r.right = 200 + aClientSize.width;
1.3031 + r.bottom = 200 + aClientSize.height;
1.3032 + ::AdjustWindowRectEx(&r, WindowStyle(), false, WindowExStyle());
1.3033 +
1.3034 + return nsIntSize(r.right - r.left, r.bottom - r.top);
1.3035 +}
1.3036 +
1.3037 +/**************************************************************
1.3038 + *
1.3039 + * SECTION: nsIWidget::EnableDragDrop
1.3040 + *
1.3041 + * Enables/Disables drag and drop of files on this widget.
1.3042 + *
1.3043 + **************************************************************/
1.3044 +
1.3045 +NS_METHOD nsWindow::EnableDragDrop(bool aEnable)
1.3046 +{
1.3047 + NS_ASSERTION(mWnd, "nsWindow::EnableDragDrop() called after Destroy()");
1.3048 +
1.3049 + nsresult rv = NS_ERROR_FAILURE;
1.3050 + if (aEnable) {
1.3051 + if (nullptr == mNativeDragTarget) {
1.3052 + mNativeDragTarget = new nsNativeDragTarget(this);
1.3053 + if (nullptr != mNativeDragTarget) {
1.3054 + mNativeDragTarget->AddRef();
1.3055 + if (S_OK == ::CoLockObjectExternal((LPUNKNOWN)mNativeDragTarget,TRUE,FALSE)) {
1.3056 + if (S_OK == ::RegisterDragDrop(mWnd, (LPDROPTARGET)mNativeDragTarget)) {
1.3057 + rv = NS_OK;
1.3058 + }
1.3059 + }
1.3060 + }
1.3061 + }
1.3062 + } else {
1.3063 + if (nullptr != mWnd && nullptr != mNativeDragTarget) {
1.3064 + ::RevokeDragDrop(mWnd);
1.3065 + if (S_OK == ::CoLockObjectExternal((LPUNKNOWN)mNativeDragTarget, FALSE, TRUE)) {
1.3066 + rv = NS_OK;
1.3067 + }
1.3068 + mNativeDragTarget->DragCancel();
1.3069 + NS_RELEASE(mNativeDragTarget);
1.3070 + }
1.3071 + }
1.3072 + return rv;
1.3073 +}
1.3074 +
1.3075 +/**************************************************************
1.3076 + *
1.3077 + * SECTION: nsIWidget::CaptureMouse
1.3078 + *
1.3079 + * Enables/Disables system mouse capture.
1.3080 + *
1.3081 + **************************************************************/
1.3082 +
1.3083 +NS_METHOD nsWindow::CaptureMouse(bool aCapture)
1.3084 +{
1.3085 + if (!nsToolkit::gMouseTrailer) {
1.3086 + NS_ERROR("nsWindow::CaptureMouse called after nsToolkit destroyed");
1.3087 + return NS_OK;
1.3088 + }
1.3089 +
1.3090 + if (aCapture) {
1.3091 + nsToolkit::gMouseTrailer->SetCaptureWindow(mWnd);
1.3092 + ::SetCapture(mWnd);
1.3093 + } else {
1.3094 + nsToolkit::gMouseTrailer->SetCaptureWindow(nullptr);
1.3095 + ::ReleaseCapture();
1.3096 + }
1.3097 + sIsInMouseCapture = aCapture;
1.3098 + return NS_OK;
1.3099 +}
1.3100 +
1.3101 +/**************************************************************
1.3102 + *
1.3103 + * SECTION: nsIWidget::CaptureRollupEvents
1.3104 + *
1.3105 + * Dealing with event rollup on destroy for popups. Enables &
1.3106 + * Disables system capture of any and all events that would
1.3107 + * cause a dropdown to be rolled up.
1.3108 + *
1.3109 + **************************************************************/
1.3110 +
1.3111 +NS_IMETHODIMP nsWindow::CaptureRollupEvents(nsIRollupListener * aListener,
1.3112 + bool aDoCapture)
1.3113 +{
1.3114 + if (aDoCapture) {
1.3115 + gRollupListener = aListener;
1.3116 + if (!sMsgFilterHook && !sCallProcHook && !sCallMouseHook) {
1.3117 + RegisterSpecialDropdownHooks();
1.3118 + }
1.3119 + sProcessHook = true;
1.3120 + } else {
1.3121 + gRollupListener = nullptr;
1.3122 + sProcessHook = false;
1.3123 + UnregisterSpecialDropdownHooks();
1.3124 + }
1.3125 +
1.3126 + return NS_OK;
1.3127 +}
1.3128 +
1.3129 +/**************************************************************
1.3130 + *
1.3131 + * SECTION: nsIWidget::GetAttention
1.3132 + *
1.3133 + * Bring this window to the user's attention.
1.3134 + *
1.3135 + **************************************************************/
1.3136 +
1.3137 +// Draw user's attention to this window until it comes to foreground.
1.3138 +NS_IMETHODIMP
1.3139 +nsWindow::GetAttention(int32_t aCycleCount)
1.3140 +{
1.3141 + // Got window?
1.3142 + if (!mWnd)
1.3143 + return NS_ERROR_NOT_INITIALIZED;
1.3144 +
1.3145 + HWND flashWnd = WinUtils::GetTopLevelHWND(mWnd, false, false);
1.3146 + HWND fgWnd = ::GetForegroundWindow();
1.3147 + // Don't flash if the flash count is 0 or if the foreground window is our
1.3148 + // window handle or that of our owned-most window.
1.3149 + if (aCycleCount == 0 ||
1.3150 + flashWnd == fgWnd ||
1.3151 + flashWnd == WinUtils::GetTopLevelHWND(fgWnd, false, false)) {
1.3152 + return NS_OK;
1.3153 + }
1.3154 +
1.3155 + DWORD defaultCycleCount = 0;
1.3156 + ::SystemParametersInfo(SPI_GETFOREGROUNDFLASHCOUNT, 0, &defaultCycleCount, 0);
1.3157 +
1.3158 + FLASHWINFO flashInfo = { sizeof(FLASHWINFO), flashWnd,
1.3159 + FLASHW_ALL, aCycleCount > 0 ? aCycleCount : defaultCycleCount, 0 };
1.3160 + ::FlashWindowEx(&flashInfo);
1.3161 +
1.3162 + return NS_OK;
1.3163 +}
1.3164 +
1.3165 +void nsWindow::StopFlashing()
1.3166 +{
1.3167 + HWND flashWnd = mWnd;
1.3168 + while (HWND ownerWnd = ::GetWindow(flashWnd, GW_OWNER)) {
1.3169 + flashWnd = ownerWnd;
1.3170 + }
1.3171 +
1.3172 + FLASHWINFO flashInfo = { sizeof(FLASHWINFO), flashWnd,
1.3173 + FLASHW_STOP, 0, 0 };
1.3174 + ::FlashWindowEx(&flashInfo);
1.3175 +}
1.3176 +
1.3177 +/**************************************************************
1.3178 + *
1.3179 + * SECTION: nsIWidget::HasPendingInputEvent
1.3180 + *
1.3181 + * Ask whether there user input events pending. All input events are
1.3182 + * included, including those not targeted at this nsIwidget instance.
1.3183 + *
1.3184 + **************************************************************/
1.3185 +
1.3186 +bool
1.3187 +nsWindow::HasPendingInputEvent()
1.3188 +{
1.3189 + // If there is pending input or the user is currently
1.3190 + // moving the window then return true.
1.3191 + // Note: When the user is moving the window WIN32 spins
1.3192 + // a separate event loop and input events are not
1.3193 + // reported to the application.
1.3194 + if (HIWORD(GetQueueStatus(QS_INPUT)))
1.3195 + return true;
1.3196 + GUITHREADINFO guiInfo;
1.3197 + guiInfo.cbSize = sizeof(GUITHREADINFO);
1.3198 + if (!GetGUIThreadInfo(GetCurrentThreadId(), &guiInfo))
1.3199 + return false;
1.3200 + return GUI_INMOVESIZE == (guiInfo.flags & GUI_INMOVESIZE);
1.3201 +}
1.3202 +
1.3203 +/**************************************************************
1.3204 + *
1.3205 + * SECTION: nsIWidget::GetLayerManager
1.3206 + *
1.3207 + * Get the layer manager associated with this widget.
1.3208 + *
1.3209 + **************************************************************/
1.3210 +
1.3211 +struct LayerManagerPrefs {
1.3212 + LayerManagerPrefs()
1.3213 + : mAccelerateByDefault(true)
1.3214 + , mDisableAcceleration(false)
1.3215 + , mPreferOpenGL(false)
1.3216 + , mPreferD3D9(false)
1.3217 + {}
1.3218 + bool mAccelerateByDefault;
1.3219 + bool mDisableAcceleration;
1.3220 + bool mForceAcceleration;
1.3221 + bool mPreferOpenGL;
1.3222 + bool mPreferD3D9;
1.3223 +};
1.3224 +
1.3225 +static void
1.3226 +GetLayerManagerPrefs(LayerManagerPrefs* aManagerPrefs)
1.3227 +{
1.3228 + Preferences::GetBool("layers.acceleration.disabled",
1.3229 + &aManagerPrefs->mDisableAcceleration);
1.3230 + Preferences::GetBool("layers.acceleration.force-enabled",
1.3231 + &aManagerPrefs->mForceAcceleration);
1.3232 + Preferences::GetBool("layers.prefer-opengl",
1.3233 + &aManagerPrefs->mPreferOpenGL);
1.3234 + Preferences::GetBool("layers.prefer-d3d9",
1.3235 + &aManagerPrefs->mPreferD3D9);
1.3236 +
1.3237 + const char *acceleratedEnv = PR_GetEnv("MOZ_ACCELERATED");
1.3238 + aManagerPrefs->mAccelerateByDefault =
1.3239 + aManagerPrefs->mAccelerateByDefault ||
1.3240 + (acceleratedEnv && (*acceleratedEnv != '0'));
1.3241 +
1.3242 + bool safeMode = false;
1.3243 + nsCOMPtr<nsIXULRuntime> xr = do_GetService("@mozilla.org/xre/runtime;1");
1.3244 + if (xr)
1.3245 + xr->GetInSafeMode(&safeMode);
1.3246 + aManagerPrefs->mDisableAcceleration =
1.3247 + aManagerPrefs->mDisableAcceleration || safeMode;
1.3248 +}
1.3249 +
1.3250 +LayerManager*
1.3251 +nsWindow::GetLayerManager(PLayerTransactionChild* aShadowManager,
1.3252 + LayersBackend aBackendHint,
1.3253 + LayerManagerPersistence aPersistence,
1.3254 + bool* aAllowRetaining)
1.3255 +{
1.3256 + if (aAllowRetaining) {
1.3257 + *aAllowRetaining = true;
1.3258 + }
1.3259 +
1.3260 +#ifdef MOZ_ENABLE_D3D10_LAYER
1.3261 + if (mLayerManager) {
1.3262 + if (mLayerManager->GetBackendType() == LayersBackend::LAYERS_D3D10)
1.3263 + {
1.3264 + LayerManagerD3D10 *layerManagerD3D10 =
1.3265 + static_cast<LayerManagerD3D10*>(mLayerManager.get());
1.3266 + if (layerManagerD3D10->device() !=
1.3267 + gfxWindowsPlatform::GetPlatform()->GetD3D10Device())
1.3268 + {
1.3269 + MOZ_ASSERT(!mLayerManager->IsInTransaction());
1.3270 +
1.3271 + mLayerManager->Destroy();
1.3272 + mLayerManager = nullptr;
1.3273 + }
1.3274 + }
1.3275 + }
1.3276 +#endif
1.3277 +
1.3278 + RECT windowRect;
1.3279 + ::GetClientRect(mWnd, &windowRect);
1.3280 +
1.3281 + // Try OMTC first.
1.3282 + if (!mLayerManager && ShouldUseOffMainThreadCompositing()) {
1.3283 + // e10s uses the parameter to pass in the shadow manager from the TabChild
1.3284 + // so we don't expect to see it there since this doesn't support e10s.
1.3285 + NS_ASSERTION(aShadowManager == nullptr, "Async Compositor not supported with e10s");
1.3286 + CreateCompositor();
1.3287 + }
1.3288 +
1.3289 + if (!mLayerManager ||
1.3290 + (!sAllowD3D9 && aPersistence == LAYER_MANAGER_PERSISTENT &&
1.3291 + mLayerManager->GetBackendType() == LayersBackend::LAYERS_BASIC &&
1.3292 + !ShouldUseOffMainThreadCompositing())) {
1.3293 + // If D3D9 is not currently allowed but the permanent manager is required,
1.3294 + // -and- we're currently using basic layers, run through this check.
1.3295 + LayerManagerPrefs prefs;
1.3296 + GetLayerManagerPrefs(&prefs);
1.3297 +
1.3298 + /* We don't currently support using an accelerated layer manager with
1.3299 + * transparent windows so don't even try. I'm also not sure if we even
1.3300 + * want to support this case. See bug #593471 */
1.3301 + if (eTransparencyTransparent == mTransparencyMode ||
1.3302 + prefs.mDisableAcceleration ||
1.3303 + windowRect.right - windowRect.left > MAX_ACCELERATED_DIMENSION ||
1.3304 + windowRect.bottom - windowRect.top > MAX_ACCELERATED_DIMENSION)
1.3305 + mUseLayersAcceleration = false;
1.3306 + else if (prefs.mAccelerateByDefault)
1.3307 + mUseLayersAcceleration = true;
1.3308 +
1.3309 + if (mUseLayersAcceleration) {
1.3310 + if (aPersistence == LAYER_MANAGER_PERSISTENT && !sAllowD3D9) {
1.3311 + MOZ_ASSERT(!mLayerManager || !mLayerManager->IsInTransaction());
1.3312 +
1.3313 + // This will clear out our existing layer manager if we have one since
1.3314 + // if we hit this with a LayerManager we're always using BasicLayers.
1.3315 + nsToolkit::StartAllowingD3D9();
1.3316 + }
1.3317 +
1.3318 +#ifdef MOZ_ENABLE_D3D10_LAYER
1.3319 + if (!prefs.mPreferD3D9 && !prefs.mPreferOpenGL) {
1.3320 + nsRefPtr<LayerManagerD3D10> layerManager =
1.3321 + new LayerManagerD3D10(this);
1.3322 + if (layerManager->Initialize(prefs.mForceAcceleration)) {
1.3323 + mLayerManager = layerManager;
1.3324 + }
1.3325 + }
1.3326 +#endif
1.3327 +#ifdef MOZ_ENABLE_D3D9_LAYER
1.3328 + if (!prefs.mPreferOpenGL && !mLayerManager && sAllowD3D9) {
1.3329 + nsRefPtr<LayerManagerD3D9> layerManager =
1.3330 + new LayerManagerD3D9(this);
1.3331 + if (layerManager->Initialize(prefs.mForceAcceleration)) {
1.3332 + mLayerManager = layerManager;
1.3333 + }
1.3334 + }
1.3335 +#endif
1.3336 + }
1.3337 +
1.3338 + // Fall back to software if we couldn't use any hardware backends.
1.3339 + if (!mLayerManager) {
1.3340 + mLayerManager = CreateBasicLayerManager();
1.3341 + }
1.3342 + }
1.3343 +
1.3344 + NS_ASSERTION(mLayerManager, "Couldn't provide a valid layer manager.");
1.3345 +
1.3346 + return mLayerManager;
1.3347 +}
1.3348 +
1.3349 +/**************************************************************
1.3350 + *
1.3351 + * SECTION: nsIWidget::GetThebesSurface
1.3352 + *
1.3353 + * Get the Thebes surface associated with this widget.
1.3354 + *
1.3355 + **************************************************************/
1.3356 +
1.3357 +gfxASurface *nsWindow::GetThebesSurface()
1.3358 +{
1.3359 + if (mPaintDC)
1.3360 + return (new gfxWindowsSurface(mPaintDC));
1.3361 +
1.3362 + uint32_t flags = gfxWindowsSurface::FLAG_TAKE_DC;
1.3363 + if (mTransparencyMode != eTransparencyOpaque) {
1.3364 + flags |= gfxWindowsSurface::FLAG_IS_TRANSPARENT;
1.3365 + }
1.3366 + return (new gfxWindowsSurface(mWnd, flags));
1.3367 +}
1.3368 +
1.3369 +/**************************************************************
1.3370 + *
1.3371 + * SECTION: nsIWidget::OnDefaultButtonLoaded
1.3372 + *
1.3373 + * Called after the dialog is loaded and it has a default button.
1.3374 + *
1.3375 + **************************************************************/
1.3376 +
1.3377 +NS_IMETHODIMP
1.3378 +nsWindow::OnDefaultButtonLoaded(const nsIntRect &aButtonRect)
1.3379 +{
1.3380 + if (aButtonRect.IsEmpty())
1.3381 + return NS_OK;
1.3382 +
1.3383 + // Don't snap when we are not active.
1.3384 + HWND activeWnd = ::GetActiveWindow();
1.3385 + if (activeWnd != ::GetForegroundWindow() ||
1.3386 + WinUtils::GetTopLevelHWND(mWnd, true) !=
1.3387 + WinUtils::GetTopLevelHWND(activeWnd, true)) {
1.3388 + return NS_OK;
1.3389 + }
1.3390 +
1.3391 + bool isAlwaysSnapCursor =
1.3392 + Preferences::GetBool("ui.cursor_snapping.always_enabled", false);
1.3393 +
1.3394 + if (!isAlwaysSnapCursor) {
1.3395 + BOOL snapDefaultButton;
1.3396 + if (!::SystemParametersInfo(SPI_GETSNAPTODEFBUTTON, 0,
1.3397 + &snapDefaultButton, 0) || !snapDefaultButton)
1.3398 + return NS_OK;
1.3399 + }
1.3400 +
1.3401 + nsIntRect widgetRect;
1.3402 + nsresult rv = GetScreenBounds(widgetRect);
1.3403 + NS_ENSURE_SUCCESS(rv, rv);
1.3404 + nsIntRect buttonRect(aButtonRect + widgetRect.TopLeft());
1.3405 +
1.3406 + nsIntPoint centerOfButton(buttonRect.x + buttonRect.width / 2,
1.3407 + buttonRect.y + buttonRect.height / 2);
1.3408 + // The center of the button can be outside of the widget.
1.3409 + // E.g., it could be hidden by scrolling.
1.3410 + if (!widgetRect.Contains(centerOfButton)) {
1.3411 + return NS_OK;
1.3412 + }
1.3413 +
1.3414 + if (!::SetCursorPos(centerOfButton.x, centerOfButton.y)) {
1.3415 + NS_ERROR("SetCursorPos failed");
1.3416 + return NS_ERROR_FAILURE;
1.3417 + }
1.3418 + return NS_OK;
1.3419 +}
1.3420 +
1.3421 +NS_IMETHODIMP
1.3422 +nsWindow::OverrideSystemMouseScrollSpeed(double aOriginalDeltaX,
1.3423 + double aOriginalDeltaY,
1.3424 + double& aOverriddenDeltaX,
1.3425 + double& aOverriddenDeltaY)
1.3426 +{
1.3427 + // The default vertical and horizontal scrolling speed is 3, this is defined
1.3428 + // on the document of SystemParametersInfo in MSDN.
1.3429 + const uint32_t kSystemDefaultScrollingSpeed = 3;
1.3430 +
1.3431 + double absOriginDeltaX = Abs(aOriginalDeltaX);
1.3432 + double absOriginDeltaY = Abs(aOriginalDeltaY);
1.3433 +
1.3434 + // Compute the simple overridden speed.
1.3435 + double absComputedOverriddenDeltaX, absComputedOverriddenDeltaY;
1.3436 + nsresult rv =
1.3437 + nsBaseWidget::OverrideSystemMouseScrollSpeed(absOriginDeltaX,
1.3438 + absOriginDeltaY,
1.3439 + absComputedOverriddenDeltaX,
1.3440 + absComputedOverriddenDeltaY);
1.3441 + NS_ENSURE_SUCCESS(rv, rv);
1.3442 +
1.3443 + aOverriddenDeltaX = aOriginalDeltaX;
1.3444 + aOverriddenDeltaY = aOriginalDeltaY;
1.3445 +
1.3446 + if (absComputedOverriddenDeltaX == absOriginDeltaX &&
1.3447 + absComputedOverriddenDeltaY == absOriginDeltaY) {
1.3448 + // We don't override now.
1.3449 + return NS_OK;
1.3450 + }
1.3451 +
1.3452 + // Otherwise, we should check whether the user customized the system settings
1.3453 + // or not. If the user did it, we should respect the will.
1.3454 + UINT systemSpeed;
1.3455 + if (!::SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &systemSpeed, 0)) {
1.3456 + return NS_ERROR_FAILURE;
1.3457 + }
1.3458 + // The default vertical scrolling speed is 3, this is defined on the document
1.3459 + // of SystemParametersInfo in MSDN.
1.3460 + if (systemSpeed != kSystemDefaultScrollingSpeed) {
1.3461 + return NS_OK;
1.3462 + }
1.3463 +
1.3464 + // Only Vista and later, Windows has the system setting of horizontal
1.3465 + // scrolling by the mouse wheel.
1.3466 + if (IsVistaOrLater()) {
1.3467 + if (!::SystemParametersInfo(SPI_GETWHEELSCROLLCHARS, 0, &systemSpeed, 0)) {
1.3468 + return NS_ERROR_FAILURE;
1.3469 + }
1.3470 + // The default horizontal scrolling speed is 3, this is defined on the
1.3471 + // document of SystemParametersInfo in MSDN.
1.3472 + if (systemSpeed != kSystemDefaultScrollingSpeed) {
1.3473 + return NS_OK;
1.3474 + }
1.3475 + }
1.3476 +
1.3477 + // Limit the overridden delta value from the system settings. The mouse
1.3478 + // driver might accelerate the scrolling speed already. If so, we shouldn't
1.3479 + // override the scrolling speed for preventing the unexpected high speed
1.3480 + // scrolling.
1.3481 + double absDeltaLimitX, absDeltaLimitY;
1.3482 + rv =
1.3483 + nsBaseWidget::OverrideSystemMouseScrollSpeed(kSystemDefaultScrollingSpeed,
1.3484 + kSystemDefaultScrollingSpeed,
1.3485 + absDeltaLimitX,
1.3486 + absDeltaLimitY);
1.3487 + NS_ENSURE_SUCCESS(rv, rv);
1.3488 +
1.3489 + // If the given delta is larger than our computed limitation value, the delta
1.3490 + // was accelerated by the mouse driver. So, we should do nothing here.
1.3491 + if (absDeltaLimitX <= absOriginDeltaX || absDeltaLimitY <= absOriginDeltaY) {
1.3492 + return NS_OK;
1.3493 + }
1.3494 +
1.3495 + aOverriddenDeltaX = std::min(absComputedOverriddenDeltaX, absDeltaLimitX);
1.3496 + aOverriddenDeltaY = std::min(absComputedOverriddenDeltaY, absDeltaLimitY);
1.3497 +
1.3498 + if (aOriginalDeltaX < 0) {
1.3499 + aOverriddenDeltaX *= -1;
1.3500 + }
1.3501 + if (aOriginalDeltaY < 0) {
1.3502 + aOverriddenDeltaY *= -1;
1.3503 + }
1.3504 + return NS_OK;
1.3505 +}
1.3506 +
1.3507 +mozilla::TemporaryRef<mozilla::gfx::DrawTarget>
1.3508 +nsWindow::StartRemoteDrawing()
1.3509 +{
1.3510 + MOZ_ASSERT(!mCompositeDC);
1.3511 + NS_ASSERTION(IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D) ||
1.3512 + IsRenderMode(gfxWindowsPlatform::RENDER_GDI),
1.3513 + "Unexpected render mode for remote drawing");
1.3514 +
1.3515 + HDC dc = (HDC)GetNativeData(NS_NATIVE_GRAPHIC);
1.3516 + nsRefPtr<gfxASurface> surf;
1.3517 +
1.3518 + if (mTransparencyMode == eTransparencyTransparent) {
1.3519 + if (!mTransparentSurface) {
1.3520 + SetupTranslucentWindowMemoryBitmap(mTransparencyMode);
1.3521 + }
1.3522 + if (mTransparentSurface) {
1.3523 + surf = mTransparentSurface;
1.3524 + }
1.3525 + }
1.3526 +
1.3527 + if (!surf) {
1.3528 + if (!dc) {
1.3529 + return nullptr;
1.3530 + }
1.3531 + uint32_t flags = (mTransparencyMode == eTransparencyOpaque) ? 0 :
1.3532 + gfxWindowsSurface::FLAG_IS_TRANSPARENT;
1.3533 + surf = new gfxWindowsSurface(dc, flags);
1.3534 + }
1.3535 +
1.3536 + mozilla::gfx::IntSize size(surf->GetSize().width, surf->GetSize().height);
1.3537 + if (size.width <= 0 || size.height <= 0) {
1.3538 + if (dc) {
1.3539 + FreeNativeData(dc, NS_NATIVE_GRAPHIC);
1.3540 + }
1.3541 + return nullptr;
1.3542 + }
1.3543 +
1.3544 + MOZ_ASSERT(!mCompositeDC);
1.3545 + mCompositeDC = dc;
1.3546 +
1.3547 + return mozilla::gfx::Factory::CreateDrawTargetForCairoSurface(surf->CairoSurface(), size);
1.3548 +}
1.3549 +
1.3550 +void
1.3551 +nsWindow::EndRemoteDrawing()
1.3552 +{
1.3553 + if (mTransparencyMode == eTransparencyTransparent) {
1.3554 + MOZ_ASSERT(IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D)
1.3555 + || mTransparentSurface);
1.3556 + UpdateTranslucentWindow();
1.3557 + }
1.3558 + if (mCompositeDC) {
1.3559 + FreeNativeData(mCompositeDC, NS_NATIVE_GRAPHIC);
1.3560 + }
1.3561 + mCompositeDC = nullptr;
1.3562 +}
1.3563 +
1.3564 +void
1.3565 +nsWindow::UpdateThemeGeometries(const nsTArray<ThemeGeometry>& aThemeGeometries)
1.3566 +{
1.3567 + nsIntRegion clearRegion;
1.3568 + for (size_t i = 0; i < aThemeGeometries.Length(); i++) {
1.3569 + if ((aThemeGeometries[i].mWidgetType == NS_THEME_WINDOW_BUTTON_BOX ||
1.3570 + aThemeGeometries[i].mWidgetType == NS_THEME_WINDOW_BUTTON_BOX_MAXIMIZED) &&
1.3571 + nsUXThemeData::CheckForCompositor())
1.3572 + {
1.3573 + nsIntRect bounds = aThemeGeometries[i].mRect;
1.3574 + clearRegion = nsIntRect(bounds.X(), bounds.Y(), bounds.Width(), bounds.Height() - 2.0);
1.3575 + clearRegion.Or(clearRegion, nsIntRect(bounds.X() + 1.0, bounds.YMost() - 2.0, bounds.Width() - 1.0, 1.0));
1.3576 + clearRegion.Or(clearRegion, nsIntRect(bounds.X() + 2.0, bounds.YMost() - 1.0, bounds.Width() - 3.0, 1.0));
1.3577 + }
1.3578 + }
1.3579 +
1.3580 + nsRefPtr<LayerManager> layerManager = GetLayerManager();
1.3581 + if (layerManager) {
1.3582 + layerManager->SetRegionToClear(clearRegion);
1.3583 + }
1.3584 +}
1.3585 +
1.3586 +/**************************************************************
1.3587 + **************************************************************
1.3588 + **
1.3589 + ** BLOCK: Moz Events
1.3590 + **
1.3591 + ** Moz GUI event management.
1.3592 + **
1.3593 + **************************************************************
1.3594 + **************************************************************/
1.3595 +
1.3596 +/**************************************************************
1.3597 + *
1.3598 + * SECTION: Mozilla event initialization
1.3599 + *
1.3600 + * Helpers for initializing moz events.
1.3601 + *
1.3602 + **************************************************************/
1.3603 +
1.3604 +// Event intialization
1.3605 +void nsWindow::InitEvent(WidgetGUIEvent& event, nsIntPoint* aPoint)
1.3606 +{
1.3607 + if (nullptr == aPoint) { // use the point from the event
1.3608 + // get the message position in client coordinates
1.3609 + if (mWnd != nullptr) {
1.3610 +
1.3611 + DWORD pos = ::GetMessagePos();
1.3612 + POINT cpos;
1.3613 +
1.3614 + cpos.x = GET_X_LPARAM(pos);
1.3615 + cpos.y = GET_Y_LPARAM(pos);
1.3616 +
1.3617 + ::ScreenToClient(mWnd, &cpos);
1.3618 + event.refPoint.x = cpos.x;
1.3619 + event.refPoint.y = cpos.y;
1.3620 + } else {
1.3621 + event.refPoint.x = 0;
1.3622 + event.refPoint.y = 0;
1.3623 + }
1.3624 + }
1.3625 + else {
1.3626 + // use the point override if provided
1.3627 + event.refPoint.x = aPoint->x;
1.3628 + event.refPoint.y = aPoint->y;
1.3629 + }
1.3630 +
1.3631 + event.time = ::GetMessageTime();
1.3632 +}
1.3633 +
1.3634 +/**************************************************************
1.3635 + *
1.3636 + * SECTION: Moz event dispatch helpers
1.3637 + *
1.3638 + * Helpers for dispatching different types of moz events.
1.3639 + *
1.3640 + **************************************************************/
1.3641 +
1.3642 +// Main event dispatch. Invokes callback and ProcessEvent method on
1.3643 +// Event Listener object. Part of nsIWidget.
1.3644 +NS_IMETHODIMP nsWindow::DispatchEvent(WidgetGUIEvent* event,
1.3645 + nsEventStatus& aStatus)
1.3646 +{
1.3647 +#ifdef WIDGET_DEBUG_OUTPUT
1.3648 + debug_DumpEvent(stdout,
1.3649 + event->widget,
1.3650 + event,
1.3651 + nsAutoCString("something"),
1.3652 + (int32_t) mWnd);
1.3653 +#endif // WIDGET_DEBUG_OUTPUT
1.3654 +
1.3655 + aStatus = nsEventStatus_eIgnore;
1.3656 +
1.3657 + // Top level windows can have a view attached which requires events be sent
1.3658 + // to the underlying base window and the view. Added when we combined the
1.3659 + // base chrome window with the main content child for nc client area (title
1.3660 + // bar) rendering.
1.3661 + if (mAttachedWidgetListener) {
1.3662 + aStatus = mAttachedWidgetListener->HandleEvent(event, mUseAttachedEvents);
1.3663 + }
1.3664 + else if (mWidgetListener) {
1.3665 + aStatus = mWidgetListener->HandleEvent(event, mUseAttachedEvents);
1.3666 + }
1.3667 +
1.3668 + // the window can be destroyed during processing of seemingly innocuous events like, say,
1.3669 + // mousedowns due to the magic of scripting. mousedowns will return nsEventStatus_eIgnore,
1.3670 + // which causes problems with the deleted window. therefore:
1.3671 + if (mOnDestroyCalled)
1.3672 + aStatus = nsEventStatus_eConsumeNoDefault;
1.3673 + return NS_OK;
1.3674 +}
1.3675 +
1.3676 +bool nsWindow::DispatchStandardEvent(uint32_t aMsg)
1.3677 +{
1.3678 + WidgetGUIEvent event(true, aMsg, this);
1.3679 + InitEvent(event);
1.3680 +
1.3681 + bool result = DispatchWindowEvent(&event);
1.3682 + return result;
1.3683 +}
1.3684 +
1.3685 +bool nsWindow::DispatchKeyboardEvent(WidgetGUIEvent* event)
1.3686 +{
1.3687 + nsEventStatus status;
1.3688 + DispatchEvent(event, status);
1.3689 + return ConvertStatus(status);
1.3690 +}
1.3691 +
1.3692 +bool nsWindow::DispatchScrollEvent(WidgetGUIEvent* event)
1.3693 +{
1.3694 + nsEventStatus status;
1.3695 + DispatchEvent(event, status);
1.3696 + return ConvertStatus(status);
1.3697 +}
1.3698 +
1.3699 +bool nsWindow::DispatchWindowEvent(WidgetGUIEvent* event)
1.3700 +{
1.3701 + nsEventStatus status;
1.3702 + DispatchEvent(event, status);
1.3703 + return ConvertStatus(status);
1.3704 +}
1.3705 +
1.3706 +bool nsWindow::DispatchWindowEvent(WidgetGUIEvent* event,
1.3707 + nsEventStatus& aStatus)
1.3708 +{
1.3709 + DispatchEvent(event, aStatus);
1.3710 + return ConvertStatus(aStatus);
1.3711 +}
1.3712 +
1.3713 +// Recursively dispatch synchronous paints for nsIWidget
1.3714 +// descendants with invalidated rectangles.
1.3715 +BOOL CALLBACK nsWindow::DispatchStarvedPaints(HWND aWnd, LPARAM aMsg)
1.3716 +{
1.3717 + LONG_PTR proc = ::GetWindowLongPtrW(aWnd, GWLP_WNDPROC);
1.3718 + if (proc == (LONG_PTR)&nsWindow::WindowProc) {
1.3719 + // its one of our windows so check to see if it has a
1.3720 + // invalidated rect. If it does. Dispatch a synchronous
1.3721 + // paint.
1.3722 + if (GetUpdateRect(aWnd, nullptr, FALSE))
1.3723 + VERIFY(::UpdateWindow(aWnd));
1.3724 + }
1.3725 + return TRUE;
1.3726 +}
1.3727 +
1.3728 +// Check for pending paints and dispatch any pending paint
1.3729 +// messages for any nsIWidget which is a descendant of the
1.3730 +// top-level window that *this* window is embedded within.
1.3731 +//
1.3732 +// Note: We do not dispatch pending paint messages for non
1.3733 +// nsIWidget managed windows.
1.3734 +void nsWindow::DispatchPendingEvents()
1.3735 +{
1.3736 + if (mPainting) {
1.3737 + NS_WARNING("We were asked to dispatch pending events during painting, "
1.3738 + "denying since that's unsafe.");
1.3739 + return;
1.3740 + }
1.3741 +
1.3742 + // We need to ensure that reflow events do not get starved.
1.3743 + // At the same time, we don't want to recurse through here
1.3744 + // as that would prevent us from dispatching starved paints.
1.3745 + static int recursionBlocker = 0;
1.3746 + if (recursionBlocker++ == 0) {
1.3747 + NS_ProcessPendingEvents(nullptr, PR_MillisecondsToInterval(100));
1.3748 + --recursionBlocker;
1.3749 + }
1.3750 +
1.3751 + // Quickly check to see if there are any paint events pending,
1.3752 + // but only dispatch them if it has been long enough since the
1.3753 + // last paint completed.
1.3754 + if (::GetQueueStatus(QS_PAINT) &&
1.3755 + ((TimeStamp::Now() - mLastPaintEndTime).ToMilliseconds() >= 50)) {
1.3756 + // Find the top level window.
1.3757 + HWND topWnd = WinUtils::GetTopLevelHWND(mWnd);
1.3758 +
1.3759 + // Dispatch pending paints for topWnd and all its descendant windows.
1.3760 + // Note: EnumChildWindows enumerates all descendant windows not just
1.3761 + // the children (but not the window itself).
1.3762 + nsWindow::DispatchStarvedPaints(topWnd, 0);
1.3763 + ::EnumChildWindows(topWnd, nsWindow::DispatchStarvedPaints, 0);
1.3764 + }
1.3765 +}
1.3766 +
1.3767 +bool nsWindow::DispatchPluginEvent(UINT aMessage,
1.3768 + WPARAM aWParam,
1.3769 + LPARAM aLParam,
1.3770 + bool aDispatchPendingEvents)
1.3771 +{
1.3772 + bool ret = nsWindowBase::DispatchPluginEvent(
1.3773 + WinUtils::InitMSG(aMessage, aWParam, aLParam, mWnd));
1.3774 + if (aDispatchPendingEvents && !Destroyed()) {
1.3775 + DispatchPendingEvents();
1.3776 + }
1.3777 + return ret;
1.3778 +}
1.3779 +
1.3780 +// Deal with all sort of mouse event
1.3781 +bool nsWindow::DispatchMouseEvent(uint32_t aEventType, WPARAM wParam,
1.3782 + LPARAM lParam, bool aIsContextMenuKey,
1.3783 + int16_t aButton, uint16_t aInputSource)
1.3784 +{
1.3785 + bool result = false;
1.3786 +
1.3787 + UserActivity();
1.3788 +
1.3789 + if (!mWidgetListener) {
1.3790 + return result;
1.3791 + }
1.3792 +
1.3793 + switch (aEventType) {
1.3794 + case NS_MOUSE_BUTTON_DOWN:
1.3795 + CaptureMouse(true);
1.3796 + break;
1.3797 +
1.3798 + // NS_MOUSE_MOVE and NS_MOUSE_EXIT are here because we need to make sure capture flag
1.3799 + // isn't left on after a drag where we wouldn't see a button up message (see bug 324131).
1.3800 + case NS_MOUSE_BUTTON_UP:
1.3801 + case NS_MOUSE_MOVE:
1.3802 + case NS_MOUSE_EXIT:
1.3803 + if (!(wParam & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON)) && sIsInMouseCapture)
1.3804 + CaptureMouse(false);
1.3805 + break;
1.3806 +
1.3807 + default:
1.3808 + break;
1.3809 +
1.3810 + } // switch
1.3811 +
1.3812 + nsIntPoint eventPoint;
1.3813 + eventPoint.x = GET_X_LPARAM(lParam);
1.3814 + eventPoint.y = GET_Y_LPARAM(lParam);
1.3815 +
1.3816 + WidgetMouseEvent event(true, aEventType, this, WidgetMouseEvent::eReal,
1.3817 + aIsContextMenuKey ? WidgetMouseEvent::eContextMenuKey :
1.3818 + WidgetMouseEvent::eNormal);
1.3819 + if (aEventType == NS_CONTEXTMENU && aIsContextMenuKey) {
1.3820 + nsIntPoint zero(0, 0);
1.3821 + InitEvent(event, &zero);
1.3822 + } else {
1.3823 + InitEvent(event, &eventPoint);
1.3824 + }
1.3825 +
1.3826 + ModifierKeyState modifierKeyState;
1.3827 + modifierKeyState.InitInputEvent(event);
1.3828 + event.button = aButton;
1.3829 + event.inputSource = aInputSource;
1.3830 + // Convert Mouse events generated by pen device or if mouse not generated from touch
1.3831 + event.convertToPointer =
1.3832 + aInputSource == nsIDOMMouseEvent::MOZ_SOURCE_PEN ||
1.3833 + !(WinUtils::GetIsMouseFromTouch(aEventType) && mTouchWindow);
1.3834 +
1.3835 + nsIntPoint mpScreen = eventPoint + WidgetToScreenOffset();
1.3836 +
1.3837 + // Suppress mouse moves caused by widget creation
1.3838 + if (aEventType == NS_MOUSE_MOVE)
1.3839 + {
1.3840 + if ((sLastMouseMovePoint.x == mpScreen.x) && (sLastMouseMovePoint.y == mpScreen.y))
1.3841 + return result;
1.3842 + sLastMouseMovePoint.x = mpScreen.x;
1.3843 + sLastMouseMovePoint.y = mpScreen.y;
1.3844 + }
1.3845 +
1.3846 + bool insideMovementThreshold = (DeprecatedAbs(sLastMousePoint.x - eventPoint.x) < (short)::GetSystemMetrics(SM_CXDOUBLECLK)) &&
1.3847 + (DeprecatedAbs(sLastMousePoint.y - eventPoint.y) < (short)::GetSystemMetrics(SM_CYDOUBLECLK));
1.3848 +
1.3849 + BYTE eventButton;
1.3850 + switch (aButton) {
1.3851 + case WidgetMouseEvent::eLeftButton:
1.3852 + eventButton = VK_LBUTTON;
1.3853 + break;
1.3854 + case WidgetMouseEvent::eMiddleButton:
1.3855 + eventButton = VK_MBUTTON;
1.3856 + break;
1.3857 + case WidgetMouseEvent::eRightButton:
1.3858 + eventButton = VK_RBUTTON;
1.3859 + break;
1.3860 + default:
1.3861 + eventButton = 0;
1.3862 + break;
1.3863 + }
1.3864 +
1.3865 + // Doubleclicks are used to set the click count, then changed to mousedowns
1.3866 + // We're going to time double-clicks from mouse *up* to next mouse *down*
1.3867 + LONG curMsgTime = ::GetMessageTime();
1.3868 +
1.3869 + if (aEventType == NS_MOUSE_DOUBLECLICK) {
1.3870 + event.message = NS_MOUSE_BUTTON_DOWN;
1.3871 + event.button = aButton;
1.3872 + sLastClickCount = 2;
1.3873 + }
1.3874 + else if (aEventType == NS_MOUSE_BUTTON_UP) {
1.3875 + // remember when this happened for the next mouse down
1.3876 + sLastMousePoint.x = eventPoint.x;
1.3877 + sLastMousePoint.y = eventPoint.y;
1.3878 + sLastMouseButton = eventButton;
1.3879 + }
1.3880 + else if (aEventType == NS_MOUSE_BUTTON_DOWN) {
1.3881 + // now look to see if we want to convert this to a double- or triple-click
1.3882 + if (((curMsgTime - sLastMouseDownTime) < (LONG)::GetDoubleClickTime()) && insideMovementThreshold &&
1.3883 + eventButton == sLastMouseButton) {
1.3884 + sLastClickCount ++;
1.3885 + } else {
1.3886 + // reset the click count, to count *this* click
1.3887 + sLastClickCount = 1;
1.3888 + }
1.3889 + // Set last Click time on MouseDown only
1.3890 + sLastMouseDownTime = curMsgTime;
1.3891 + }
1.3892 + else if (aEventType == NS_MOUSE_MOVE && !insideMovementThreshold) {
1.3893 + sLastClickCount = 0;
1.3894 + }
1.3895 + else if (aEventType == NS_MOUSE_EXIT) {
1.3896 + event.exit = IsTopLevelMouseExit(mWnd) ?
1.3897 + WidgetMouseEvent::eTopLevel : WidgetMouseEvent::eChild;
1.3898 + }
1.3899 + event.clickCount = sLastClickCount;
1.3900 +
1.3901 +#ifdef NS_DEBUG_XX
1.3902 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.3903 + ("Msg Time: %d Click Count: %d\n", curMsgTime, event.clickCount));
1.3904 +#endif
1.3905 +
1.3906 + NPEvent pluginEvent;
1.3907 +
1.3908 + switch (aEventType)
1.3909 + {
1.3910 + case NS_MOUSE_BUTTON_DOWN:
1.3911 + switch (aButton) {
1.3912 + case WidgetMouseEvent::eLeftButton:
1.3913 + pluginEvent.event = WM_LBUTTONDOWN;
1.3914 + break;
1.3915 + case WidgetMouseEvent::eMiddleButton:
1.3916 + pluginEvent.event = WM_MBUTTONDOWN;
1.3917 + break;
1.3918 + case WidgetMouseEvent::eRightButton:
1.3919 + pluginEvent.event = WM_RBUTTONDOWN;
1.3920 + break;
1.3921 + default:
1.3922 + break;
1.3923 + }
1.3924 + break;
1.3925 + case NS_MOUSE_BUTTON_UP:
1.3926 + switch (aButton) {
1.3927 + case WidgetMouseEvent::eLeftButton:
1.3928 + pluginEvent.event = WM_LBUTTONUP;
1.3929 + break;
1.3930 + case WidgetMouseEvent::eMiddleButton:
1.3931 + pluginEvent.event = WM_MBUTTONUP;
1.3932 + break;
1.3933 + case WidgetMouseEvent::eRightButton:
1.3934 + pluginEvent.event = WM_RBUTTONUP;
1.3935 + break;
1.3936 + default:
1.3937 + break;
1.3938 + }
1.3939 + break;
1.3940 + case NS_MOUSE_DOUBLECLICK:
1.3941 + switch (aButton) {
1.3942 + case WidgetMouseEvent::eLeftButton:
1.3943 + pluginEvent.event = WM_LBUTTONDBLCLK;
1.3944 + break;
1.3945 + case WidgetMouseEvent::eMiddleButton:
1.3946 + pluginEvent.event = WM_MBUTTONDBLCLK;
1.3947 + break;
1.3948 + case WidgetMouseEvent::eRightButton:
1.3949 + pluginEvent.event = WM_RBUTTONDBLCLK;
1.3950 + break;
1.3951 + default:
1.3952 + break;
1.3953 + }
1.3954 + break;
1.3955 + case NS_MOUSE_MOVE:
1.3956 + pluginEvent.event = WM_MOUSEMOVE;
1.3957 + break;
1.3958 + case NS_MOUSE_EXIT:
1.3959 + pluginEvent.event = WM_MOUSELEAVE;
1.3960 + break;
1.3961 + default:
1.3962 + pluginEvent.event = WM_NULL;
1.3963 + break;
1.3964 + }
1.3965 +
1.3966 + pluginEvent.wParam = wParam; // plugins NEED raw OS event flags!
1.3967 + pluginEvent.lParam = lParam;
1.3968 +
1.3969 + event.pluginEvent = (void *)&pluginEvent;
1.3970 +
1.3971 + // call the event callback
1.3972 + if (mWidgetListener) {
1.3973 + if (nsToolkit::gMouseTrailer)
1.3974 + nsToolkit::gMouseTrailer->Disable();
1.3975 + if (aEventType == NS_MOUSE_MOVE) {
1.3976 + if (nsToolkit::gMouseTrailer && !sIsInMouseCapture) {
1.3977 + nsToolkit::gMouseTrailer->SetMouseTrailerWindow(mWnd);
1.3978 + }
1.3979 + nsIntRect rect;
1.3980 + GetBounds(rect);
1.3981 + rect.x = 0;
1.3982 + rect.y = 0;
1.3983 +
1.3984 + if (rect.Contains(LayoutDeviceIntPoint::ToUntyped(event.refPoint))) {
1.3985 + if (sCurrentWindow == nullptr || sCurrentWindow != this) {
1.3986 + if ((nullptr != sCurrentWindow) && (!sCurrentWindow->mInDtor)) {
1.3987 + LPARAM pos = sCurrentWindow->lParamToClient(lParamToScreen(lParam));
1.3988 + sCurrentWindow->DispatchMouseEvent(NS_MOUSE_EXIT, wParam, pos, false,
1.3989 + WidgetMouseEvent::eLeftButton,
1.3990 + aInputSource);
1.3991 + }
1.3992 + sCurrentWindow = this;
1.3993 + if (!mInDtor) {
1.3994 + LPARAM pos = sCurrentWindow->lParamToClient(lParamToScreen(lParam));
1.3995 + sCurrentWindow->DispatchMouseEvent(NS_MOUSE_ENTER, wParam, pos, false,
1.3996 + WidgetMouseEvent::eLeftButton,
1.3997 + aInputSource);
1.3998 + }
1.3999 + }
1.4000 + }
1.4001 + } else if (aEventType == NS_MOUSE_EXIT) {
1.4002 + if (sCurrentWindow == this) {
1.4003 + sCurrentWindow = nullptr;
1.4004 + }
1.4005 + }
1.4006 +
1.4007 + result = DispatchWindowEvent(&event);
1.4008 +
1.4009 + if (nsToolkit::gMouseTrailer)
1.4010 + nsToolkit::gMouseTrailer->Enable();
1.4011 +
1.4012 + // Release the widget with NS_IF_RELEASE() just in case
1.4013 + // the context menu key code in EventListenerManager::HandleEvent()
1.4014 + // released it already.
1.4015 + return result;
1.4016 + }
1.4017 +
1.4018 + return result;
1.4019 +}
1.4020 +
1.4021 +void nsWindow::DispatchFocusToTopLevelWindow(bool aIsActivate)
1.4022 +{
1.4023 + if (aIsActivate)
1.4024 + sJustGotActivate = false;
1.4025 + sJustGotDeactivate = false;
1.4026 +
1.4027 + // retrive the toplevel window or dialog
1.4028 + HWND curWnd = mWnd;
1.4029 + HWND toplevelWnd = nullptr;
1.4030 + while (curWnd) {
1.4031 + toplevelWnd = curWnd;
1.4032 +
1.4033 + nsWindow *win = WinUtils::GetNSWindowPtr(curWnd);
1.4034 + if (win) {
1.4035 + nsWindowType wintype = win->WindowType();
1.4036 + if (wintype == eWindowType_toplevel || wintype == eWindowType_dialog)
1.4037 + break;
1.4038 + }
1.4039 +
1.4040 + curWnd = ::GetParent(curWnd); // Parent or owner (if has no parent)
1.4041 + }
1.4042 +
1.4043 + if (toplevelWnd) {
1.4044 + nsWindow *win = WinUtils::GetNSWindowPtr(toplevelWnd);
1.4045 + if (win && win->mWidgetListener) {
1.4046 + if (aIsActivate) {
1.4047 + win->mWidgetListener->WindowActivated();
1.4048 + } else {
1.4049 + if (!win->BlurEventsSuppressed()) {
1.4050 + win->mWidgetListener->WindowDeactivated();
1.4051 + }
1.4052 + }
1.4053 + }
1.4054 + }
1.4055 +}
1.4056 +
1.4057 +bool nsWindow::IsTopLevelMouseExit(HWND aWnd)
1.4058 +{
1.4059 + DWORD pos = ::GetMessagePos();
1.4060 + POINT mp;
1.4061 + mp.x = GET_X_LPARAM(pos);
1.4062 + mp.y = GET_Y_LPARAM(pos);
1.4063 + HWND mouseWnd = ::WindowFromPoint(mp);
1.4064 +
1.4065 + // WinUtils::GetTopLevelHWND() will return a HWND for the window frame
1.4066 + // (which includes the non-client area). If the mouse has moved into
1.4067 + // the non-client area, we should treat it as a top-level exit.
1.4068 + HWND mouseTopLevel = WinUtils::GetTopLevelHWND(mouseWnd);
1.4069 + if (mouseWnd == mouseTopLevel)
1.4070 + return true;
1.4071 +
1.4072 + return WinUtils::GetTopLevelHWND(aWnd) != mouseTopLevel;
1.4073 +}
1.4074 +
1.4075 +bool nsWindow::BlurEventsSuppressed()
1.4076 +{
1.4077 + // are they suppressed in this window?
1.4078 + if (mBlurSuppressLevel > 0)
1.4079 + return true;
1.4080 +
1.4081 + // are they suppressed by any container widget?
1.4082 + HWND parentWnd = ::GetParent(mWnd);
1.4083 + if (parentWnd) {
1.4084 + nsWindow *parent = WinUtils::GetNSWindowPtr(parentWnd);
1.4085 + if (parent)
1.4086 + return parent->BlurEventsSuppressed();
1.4087 + }
1.4088 + return false;
1.4089 +}
1.4090 +
1.4091 +// In some circumstances (opening dependent windows) it makes more sense
1.4092 +// (and fixes a crash bug) to not blur the parent window. Called from
1.4093 +// nsFilePicker.
1.4094 +void nsWindow::SuppressBlurEvents(bool aSuppress)
1.4095 +{
1.4096 + if (aSuppress)
1.4097 + ++mBlurSuppressLevel; // for this widget
1.4098 + else {
1.4099 + NS_ASSERTION(mBlurSuppressLevel > 0, "unbalanced blur event suppression");
1.4100 + if (mBlurSuppressLevel > 0)
1.4101 + --mBlurSuppressLevel;
1.4102 + }
1.4103 +}
1.4104 +
1.4105 +bool nsWindow::ConvertStatus(nsEventStatus aStatus)
1.4106 +{
1.4107 + return aStatus == nsEventStatus_eConsumeNoDefault;
1.4108 +}
1.4109 +
1.4110 +/**************************************************************
1.4111 + *
1.4112 + * SECTION: IPC
1.4113 + *
1.4114 + * IPC related helpers.
1.4115 + *
1.4116 + **************************************************************/
1.4117 +
1.4118 +// static
1.4119 +bool
1.4120 +nsWindow::IsAsyncResponseEvent(UINT aMsg, LRESULT& aResult)
1.4121 +{
1.4122 + switch(aMsg) {
1.4123 + case WM_SETFOCUS:
1.4124 + case WM_KILLFOCUS:
1.4125 + case WM_ENABLE:
1.4126 + case WM_WINDOWPOSCHANGING:
1.4127 + case WM_WINDOWPOSCHANGED:
1.4128 + case WM_PARENTNOTIFY:
1.4129 + case WM_ACTIVATEAPP:
1.4130 + case WM_NCACTIVATE:
1.4131 + case WM_ACTIVATE:
1.4132 + case WM_CHILDACTIVATE:
1.4133 + case WM_IME_SETCONTEXT:
1.4134 + case WM_IME_NOTIFY:
1.4135 + case WM_SHOWWINDOW:
1.4136 + case WM_CANCELMODE:
1.4137 + case WM_MOUSEACTIVATE:
1.4138 + case WM_CONTEXTMENU:
1.4139 + aResult = 0;
1.4140 + return true;
1.4141 +
1.4142 + case WM_SETTINGCHANGE:
1.4143 + case WM_SETCURSOR:
1.4144 + return false;
1.4145 + }
1.4146 +
1.4147 +#ifdef DEBUG
1.4148 + char szBuf[200];
1.4149 + sprintf(szBuf,
1.4150 + "An unhandled ISMEX_SEND message was received during spin loop! (%X)", aMsg);
1.4151 + NS_WARNING(szBuf);
1.4152 +#endif
1.4153 +
1.4154 + return false;
1.4155 +}
1.4156 +
1.4157 +void
1.4158 +nsWindow::IPCWindowProcHandler(UINT& msg, WPARAM& wParam, LPARAM& lParam)
1.4159 +{
1.4160 + NS_ASSERTION(!mozilla::ipc::MessageChannel::IsPumpingMessages(),
1.4161 + "Failed to prevent a nonqueued message from running!");
1.4162 +
1.4163 + // Modal UI being displayed in windowless plugins.
1.4164 + if (mozilla::ipc::MessageChannel::IsSpinLoopActive() &&
1.4165 + (InSendMessageEx(nullptr) & (ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) {
1.4166 + LRESULT res;
1.4167 + if (IsAsyncResponseEvent(msg, res)) {
1.4168 + ReplyMessage(res);
1.4169 + }
1.4170 + return;
1.4171 + }
1.4172 +
1.4173 + // Handle certain sync plugin events sent to the parent which
1.4174 + // trigger ipc calls that result in deadlocks.
1.4175 +
1.4176 + DWORD dwResult = 0;
1.4177 + bool handled = false;
1.4178 +
1.4179 + switch(msg) {
1.4180 + // Windowless flash sending WM_ACTIVATE events to the main window
1.4181 + // via calls to ShowWindow.
1.4182 + case WM_ACTIVATE:
1.4183 + if (lParam != 0 && LOWORD(wParam) == WA_ACTIVE &&
1.4184 + IsWindow((HWND)lParam)) {
1.4185 + // Check for Adobe Reader X sync activate message from their
1.4186 + // helper window and ignore. Fixes an annoying focus problem.
1.4187 + if ((InSendMessageEx(nullptr) & (ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) {
1.4188 + wchar_t szClass[10];
1.4189 + HWND focusWnd = (HWND)lParam;
1.4190 + if (IsWindowVisible(focusWnd) &&
1.4191 + GetClassNameW(focusWnd, szClass,
1.4192 + sizeof(szClass)/sizeof(char16_t)) &&
1.4193 + !wcscmp(szClass, L"Edit") &&
1.4194 + !WinUtils::IsOurProcessWindow(focusWnd)) {
1.4195 + break;
1.4196 + }
1.4197 + }
1.4198 + handled = true;
1.4199 + }
1.4200 + break;
1.4201 + // Plugins taking or losing focus triggering focus app messages.
1.4202 + case WM_SETFOCUS:
1.4203 + case WM_KILLFOCUS:
1.4204 + // Windowed plugins that pass sys key events to defwndproc generate
1.4205 + // WM_SYSCOMMAND events to the main window.
1.4206 + case WM_SYSCOMMAND:
1.4207 + // Windowed plugins that fire context menu selection events to parent
1.4208 + // windows.
1.4209 + case WM_CONTEXTMENU:
1.4210 + // IME events fired as a result of synchronous focus changes
1.4211 + case WM_IME_SETCONTEXT:
1.4212 + handled = true;
1.4213 + break;
1.4214 + }
1.4215 +
1.4216 + if (handled &&
1.4217 + (InSendMessageEx(nullptr) & (ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) {
1.4218 + ReplyMessage(dwResult);
1.4219 + }
1.4220 +}
1.4221 +
1.4222 +/**************************************************************
1.4223 + **************************************************************
1.4224 + **
1.4225 + ** BLOCK: Native events
1.4226 + **
1.4227 + ** Main Windows message handlers and OnXXX handlers for
1.4228 + ** Windows event handling.
1.4229 + **
1.4230 + **************************************************************
1.4231 + **************************************************************/
1.4232 +
1.4233 +/**************************************************************
1.4234 + *
1.4235 + * SECTION: Wind proc.
1.4236 + *
1.4237 + * The main Windows event procedures and associated
1.4238 + * message processing methods.
1.4239 + *
1.4240 + **************************************************************/
1.4241 +
1.4242 +static bool
1.4243 +DisplaySystemMenu(HWND hWnd, nsSizeMode sizeMode, bool isRtl, int32_t x, int32_t y)
1.4244 +{
1.4245 + HMENU hMenu = GetSystemMenu(hWnd, FALSE);
1.4246 + if (hMenu) {
1.4247 + MENUITEMINFO mii;
1.4248 + mii.cbSize = sizeof(MENUITEMINFO);
1.4249 + mii.fMask = MIIM_STATE;
1.4250 + mii.fType = 0;
1.4251 +
1.4252 + // update the options
1.4253 + mii.fState = MF_ENABLED;
1.4254 + SetMenuItemInfo(hMenu, SC_RESTORE, FALSE, &mii);
1.4255 + SetMenuItemInfo(hMenu, SC_SIZE, FALSE, &mii);
1.4256 + SetMenuItemInfo(hMenu, SC_MOVE, FALSE, &mii);
1.4257 + SetMenuItemInfo(hMenu, SC_MAXIMIZE, FALSE, &mii);
1.4258 + SetMenuItemInfo(hMenu, SC_MINIMIZE, FALSE, &mii);
1.4259 +
1.4260 + mii.fState = MF_GRAYED;
1.4261 + switch(sizeMode) {
1.4262 + case nsSizeMode_Fullscreen:
1.4263 + SetMenuItemInfo(hMenu, SC_RESTORE, FALSE, &mii);
1.4264 + // intentional fall through
1.4265 + case nsSizeMode_Maximized:
1.4266 + SetMenuItemInfo(hMenu, SC_SIZE, FALSE, &mii);
1.4267 + SetMenuItemInfo(hMenu, SC_MOVE, FALSE, &mii);
1.4268 + SetMenuItemInfo(hMenu, SC_MAXIMIZE, FALSE, &mii);
1.4269 + break;
1.4270 + case nsSizeMode_Minimized:
1.4271 + SetMenuItemInfo(hMenu, SC_MINIMIZE, FALSE, &mii);
1.4272 + break;
1.4273 + case nsSizeMode_Normal:
1.4274 + SetMenuItemInfo(hMenu, SC_RESTORE, FALSE, &mii);
1.4275 + break;
1.4276 + }
1.4277 + LPARAM cmd =
1.4278 + TrackPopupMenu(hMenu,
1.4279 + (TPM_LEFTBUTTON|TPM_RIGHTBUTTON|
1.4280 + TPM_RETURNCMD|TPM_TOPALIGN|
1.4281 + (isRtl ? TPM_RIGHTALIGN : TPM_LEFTALIGN)),
1.4282 + x, y, 0, hWnd, nullptr);
1.4283 + if (cmd) {
1.4284 + PostMessage(hWnd, WM_SYSCOMMAND, cmd, 0);
1.4285 + return true;
1.4286 + }
1.4287 + }
1.4288 + return false;
1.4289 +}
1.4290 +
1.4291 +inline static mozilla::HangMonitor::ActivityType ActivityTypeForMessage(UINT msg)
1.4292 +{
1.4293 + if ((msg >= WM_KEYFIRST && msg <= WM_IME_KEYLAST) ||
1.4294 + (msg >= WM_MOUSEFIRST && msg <= WM_MOUSELAST) ||
1.4295 + (msg >= MOZ_WM_MOUSEWHEEL_FIRST && msg <= MOZ_WM_MOUSEWHEEL_LAST) ||
1.4296 + (msg >= NS_WM_IMEFIRST && msg <= NS_WM_IMELAST)) {
1.4297 + return mozilla::HangMonitor::kUIActivity;
1.4298 + }
1.4299 +
1.4300 + // This may not actually be right, but we don't want to reset the timer if
1.4301 + // we're not actually processing a UI message.
1.4302 + return mozilla::HangMonitor::kActivityUIAVail;
1.4303 +}
1.4304 +
1.4305 +// The WndProc procedure for all nsWindows in this toolkit. This merely catches
1.4306 +// exceptions and passes the real work to WindowProcInternal. See bug 587406
1.4307 +// and http://msdn.microsoft.com/en-us/library/ms633573%28VS.85%29.aspx
1.4308 +LRESULT CALLBACK nsWindow::WindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1.4309 +{
1.4310 + HangMonitor::NotifyActivity(ActivityTypeForMessage(msg));
1.4311 +
1.4312 + return mozilla::CallWindowProcCrashProtected(WindowProcInternal, hWnd, msg, wParam, lParam);
1.4313 +}
1.4314 +
1.4315 +LRESULT CALLBACK nsWindow::WindowProcInternal(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1.4316 +{
1.4317 + if (::GetWindowLongPtrW(hWnd, GWLP_ID) == eFakeTrackPointScrollableID) {
1.4318 + // This message was sent to the FAKETRACKPOINTSCROLLABLE.
1.4319 + if (msg == WM_HSCROLL) {
1.4320 + // Route WM_HSCROLL messages to the main window.
1.4321 + hWnd = ::GetParent(::GetParent(hWnd));
1.4322 + } else {
1.4323 + // Handle all other messages with its original window procedure.
1.4324 + WNDPROC prevWindowProc = (WNDPROC)::GetWindowLongPtr(hWnd, GWLP_USERDATA);
1.4325 + return ::CallWindowProcW(prevWindowProc, hWnd, msg, wParam, lParam);
1.4326 + }
1.4327 + }
1.4328 +
1.4329 + if (msg == MOZ_WM_TRACE) {
1.4330 + // This is a tracer event for measuring event loop latency.
1.4331 + // See WidgetTraceEvent.cpp for more details.
1.4332 + mozilla::SignalTracerThread();
1.4333 + return 0;
1.4334 + }
1.4335 +
1.4336 + // Get the window which caused the event and ask it to process the message
1.4337 + nsWindow *targetWindow = WinUtils::GetNSWindowPtr(hWnd);
1.4338 + NS_ASSERTION(targetWindow, "nsWindow* is null!");
1.4339 + if (!targetWindow)
1.4340 + return ::DefWindowProcW(hWnd, msg, wParam, lParam);
1.4341 +
1.4342 + // Hold the window for the life of this method, in case it gets
1.4343 + // destroyed during processing, unless we're in the dtor already.
1.4344 + nsCOMPtr<nsISupports> kungFuDeathGrip;
1.4345 + if (!targetWindow->mInDtor)
1.4346 + kungFuDeathGrip = do_QueryInterface((nsBaseWidget*)targetWindow);
1.4347 +
1.4348 + targetWindow->IPCWindowProcHandler(msg, wParam, lParam);
1.4349 +
1.4350 + // Create this here so that we store the last rolled up popup until after
1.4351 + // the event has been processed.
1.4352 + nsAutoRollup autoRollup;
1.4353 +
1.4354 + LRESULT popupHandlingResult;
1.4355 + if (DealWithPopups(hWnd, msg, wParam, lParam, &popupHandlingResult))
1.4356 + return popupHandlingResult;
1.4357 +
1.4358 + // Call ProcessMessage
1.4359 + LRESULT retValue;
1.4360 + if (targetWindow->ProcessMessage(msg, wParam, lParam, &retValue)) {
1.4361 + return retValue;
1.4362 + }
1.4363 +
1.4364 + LRESULT res = ::CallWindowProcW(targetWindow->GetPrevWindowProc(),
1.4365 + hWnd, msg, wParam, lParam);
1.4366 +
1.4367 + return res;
1.4368 +}
1.4369 +
1.4370 +// The main windows message processing method for plugins.
1.4371 +// The result means whether this method processed the native
1.4372 +// event for plugin. If false, the native event should be
1.4373 +// processed by the caller self.
1.4374 +bool
1.4375 +nsWindow::ProcessMessageForPlugin(const MSG &aMsg,
1.4376 + MSGResult& aResult)
1.4377 +{
1.4378 + aResult.mResult = 0;
1.4379 + aResult.mConsumed = true;
1.4380 +
1.4381 + bool eventDispatched = false;
1.4382 + switch (aMsg.message) {
1.4383 + case WM_CHAR:
1.4384 + case WM_SYSCHAR:
1.4385 + aResult.mResult = ProcessCharMessage(aMsg, &eventDispatched);
1.4386 + break;
1.4387 +
1.4388 + case WM_KEYUP:
1.4389 + case WM_SYSKEYUP:
1.4390 + aResult.mResult = ProcessKeyUpMessage(aMsg, &eventDispatched);
1.4391 + break;
1.4392 +
1.4393 + case WM_KEYDOWN:
1.4394 + case WM_SYSKEYDOWN:
1.4395 + aResult.mResult = ProcessKeyDownMessage(aMsg, &eventDispatched);
1.4396 + break;
1.4397 +
1.4398 + case WM_DEADCHAR:
1.4399 + case WM_SYSDEADCHAR:
1.4400 +
1.4401 + case WM_CUT:
1.4402 + case WM_COPY:
1.4403 + case WM_PASTE:
1.4404 + case WM_CLEAR:
1.4405 + case WM_UNDO:
1.4406 + break;
1.4407 +
1.4408 + default:
1.4409 + return false;
1.4410 + }
1.4411 +
1.4412 + if (!eventDispatched) {
1.4413 + aResult.mConsumed = nsWindowBase::DispatchPluginEvent(aMsg);
1.4414 + }
1.4415 + if (!Destroyed()) {
1.4416 + DispatchPendingEvents();
1.4417 + }
1.4418 + return true;
1.4419 +}
1.4420 +
1.4421 +static void ForceFontUpdate()
1.4422 +{
1.4423 + // update device context font cache
1.4424 + // Dirty but easiest way:
1.4425 + // Changing nsIPrefBranch entry which triggers callbacks
1.4426 + // and flows into calling mDeviceContext->FlushFontCache()
1.4427 + // to update the font cache in all the instance of Browsers
1.4428 + static const char kPrefName[] = "font.internaluseonly.changed";
1.4429 + bool fontInternalChange =
1.4430 + Preferences::GetBool(kPrefName, false);
1.4431 + Preferences::SetBool(kPrefName, !fontInternalChange);
1.4432 +}
1.4433 +
1.4434 +static bool CleartypeSettingChanged()
1.4435 +{
1.4436 + static int currentQuality = -1;
1.4437 + BYTE quality = cairo_win32_get_system_text_quality();
1.4438 +
1.4439 + if (currentQuality == quality)
1.4440 + return false;
1.4441 +
1.4442 + if (currentQuality < 0) {
1.4443 + currentQuality = quality;
1.4444 + return false;
1.4445 + }
1.4446 + currentQuality = quality;
1.4447 + return true;
1.4448 +}
1.4449 +
1.4450 +bool
1.4451 +nsWindow::ExternalHandlerProcessMessage(UINT aMessage,
1.4452 + WPARAM& aWParam,
1.4453 + LPARAM& aLParam,
1.4454 + MSGResult& aResult)
1.4455 +{
1.4456 + if (mWindowHook.Notify(mWnd, aMessage, aWParam, aLParam, aResult)) {
1.4457 + return true;
1.4458 + }
1.4459 +
1.4460 + if (IMEHandler::ProcessMessage(this, aMessage, aWParam, aLParam, aResult)) {
1.4461 + return true;
1.4462 + }
1.4463 +
1.4464 + if (MouseScrollHandler::ProcessMessage(this, aMessage, aWParam, aLParam,
1.4465 + aResult)) {
1.4466 + return true;
1.4467 + }
1.4468 +
1.4469 + if (PluginHasFocus()) {
1.4470 + MSG nativeMsg = WinUtils::InitMSG(aMessage, aWParam, aLParam, mWnd);
1.4471 + if (ProcessMessageForPlugin(nativeMsg, aResult)) {
1.4472 + return true;
1.4473 + }
1.4474 + }
1.4475 +
1.4476 + return false;
1.4477 +}
1.4478 +
1.4479 +// The main windows message processing method.
1.4480 +bool
1.4481 +nsWindow::ProcessMessage(UINT msg, WPARAM& wParam, LPARAM& lParam,
1.4482 + LRESULT *aRetValue)
1.4483 +{
1.4484 +#if defined(EVENT_DEBUG_OUTPUT)
1.4485 + // First param shows all events, second param indicates whether
1.4486 + // to show mouse move events. See nsWindowDbg for details.
1.4487 + PrintEvent(msg, SHOW_REPEAT_EVENTS, SHOW_MOUSEMOVE_EVENTS);
1.4488 +#endif
1.4489 +
1.4490 + MSGResult msgResult(aRetValue);
1.4491 + if (ExternalHandlerProcessMessage(msg, wParam, lParam, msgResult)) {
1.4492 + return (msgResult.mConsumed || !mWnd);
1.4493 + }
1.4494 +
1.4495 + bool result = false; // call the default nsWindow proc
1.4496 + *aRetValue = 0;
1.4497 +
1.4498 + // Glass hit testing w/custom transparent margins
1.4499 + LRESULT dwmHitResult;
1.4500 + if (mCustomNonClient &&
1.4501 + nsUXThemeData::CheckForCompositor() &&
1.4502 + WinUtils::dwmDwmDefWindowProcPtr(mWnd, msg, wParam, lParam, &dwmHitResult)) {
1.4503 + *aRetValue = dwmHitResult;
1.4504 + return true;
1.4505 + }
1.4506 +
1.4507 + // (Large blocks of code should be broken out into OnEvent handlers.)
1.4508 + switch (msg) {
1.4509 + // WM_QUERYENDSESSION must be handled by all windows.
1.4510 + // Otherwise Windows thinks the window can just be killed at will.
1.4511 + case WM_QUERYENDSESSION:
1.4512 + if (sCanQuit == TRI_UNKNOWN)
1.4513 + {
1.4514 + // Ask if it's ok to quit, and store the answer until we
1.4515 + // get WM_ENDSESSION signaling the round is complete.
1.4516 + nsCOMPtr<nsIObserverService> obsServ =
1.4517 + mozilla::services::GetObserverService();
1.4518 + nsCOMPtr<nsISupportsPRBool> cancelQuit =
1.4519 + do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID);
1.4520 + cancelQuit->SetData(false);
1.4521 + obsServ->NotifyObservers(cancelQuit, "quit-application-requested", nullptr);
1.4522 +
1.4523 + bool abortQuit;
1.4524 + cancelQuit->GetData(&abortQuit);
1.4525 + sCanQuit = abortQuit ? TRI_FALSE : TRI_TRUE;
1.4526 + }
1.4527 + *aRetValue = sCanQuit ? TRUE : FALSE;
1.4528 + result = true;
1.4529 + break;
1.4530 +
1.4531 + case WM_ENDSESSION:
1.4532 + case MOZ_WM_APP_QUIT:
1.4533 + if (msg == MOZ_WM_APP_QUIT || (wParam == TRUE && sCanQuit == TRI_TRUE))
1.4534 + {
1.4535 + // Let's fake a shutdown sequence without actually closing windows etc.
1.4536 + // to avoid Windows killing us in the middle. A proper shutdown would
1.4537 + // require having a chance to pump some messages. Unfortunately
1.4538 + // Windows won't let us do that. Bug 212316.
1.4539 + nsCOMPtr<nsIObserverService> obsServ =
1.4540 + mozilla::services::GetObserverService();
1.4541 + NS_NAMED_LITERAL_STRING(context, "shutdown-persist");
1.4542 + obsServ->NotifyObservers(nullptr, "quit-application-granted", nullptr);
1.4543 + obsServ->NotifyObservers(nullptr, "quit-application-forced", nullptr);
1.4544 + obsServ->NotifyObservers(nullptr, "quit-application", nullptr);
1.4545 + obsServ->NotifyObservers(nullptr, "profile-change-net-teardown", context.get());
1.4546 + obsServ->NotifyObservers(nullptr, "profile-change-teardown", context.get());
1.4547 + obsServ->NotifyObservers(nullptr, "profile-before-change", context.get());
1.4548 + obsServ->NotifyObservers(nullptr, "profile-before-change2", context.get());
1.4549 + // Then a controlled but very quick exit.
1.4550 + _exit(0);
1.4551 + }
1.4552 + sCanQuit = TRI_UNKNOWN;
1.4553 + result = true;
1.4554 + break;
1.4555 +
1.4556 + case WM_SYSCOLORCHANGE:
1.4557 + OnSysColorChanged();
1.4558 + break;
1.4559 +
1.4560 + case WM_THEMECHANGED:
1.4561 + {
1.4562 + // Update non-client margin offsets
1.4563 + UpdateNonClientMargins();
1.4564 + nsUXThemeData::InitTitlebarInfo();
1.4565 + nsUXThemeData::UpdateNativeThemeInfo();
1.4566 +
1.4567 + NotifyThemeChanged();
1.4568 +
1.4569 + // Invalidate the window so that the repaint will
1.4570 + // pick up the new theme.
1.4571 + Invalidate(true, true, true);
1.4572 + }
1.4573 + break;
1.4574 +
1.4575 + case WM_FONTCHANGE:
1.4576 + {
1.4577 + // We only handle this message for the hidden window,
1.4578 + // as we only need to update the (global) font list once
1.4579 + // for any given change, not once per window!
1.4580 + if (mWindowType != eWindowType_invisible) {
1.4581 + break;
1.4582 + }
1.4583 +
1.4584 + nsresult rv;
1.4585 + bool didChange = false;
1.4586 +
1.4587 + // update the global font list
1.4588 + nsCOMPtr<nsIFontEnumerator> fontEnum = do_GetService("@mozilla.org/gfx/fontenumerator;1", &rv);
1.4589 + if (NS_SUCCEEDED(rv)) {
1.4590 + fontEnum->UpdateFontList(&didChange);
1.4591 + ForceFontUpdate();
1.4592 + } //if (NS_SUCCEEDED(rv))
1.4593 + }
1.4594 + break;
1.4595 +
1.4596 + case WM_NCCALCSIZE:
1.4597 + {
1.4598 + if (mCustomNonClient) {
1.4599 + // If `wParam` is `FALSE`, `lParam` points to a `RECT` that contains
1.4600 + // the proposed window rectangle for our window. During our
1.4601 + // processing of the `WM_NCCALCSIZE` message, we are expected to
1.4602 + // modify the `RECT` that `lParam` points to, so that its value upon
1.4603 + // our return is the new client area. We must return 0 if `wParam`
1.4604 + // is `FALSE`.
1.4605 + //
1.4606 + // If `wParam` is `TRUE`, `lParam` points to a `NCCALCSIZE_PARAMS`
1.4607 + // struct. This struct contains an array of 3 `RECT`s, the first of
1.4608 + // which has the exact same meaning as the `RECT` that is pointed to
1.4609 + // by `lParam` when `wParam` is `FALSE`. The remaining `RECT`s, in
1.4610 + // conjunction with our return value, can
1.4611 + // be used to specify portions of the source and destination window
1.4612 + // rectangles that are valid and should be preserved. We opt not to
1.4613 + // implement an elaborate client-area preservation technique, and
1.4614 + // simply return 0, which means "preserve the entire old client area
1.4615 + // and align it with the upper-left corner of our new client area".
1.4616 + RECT *clientRect = wParam
1.4617 + ? &(reinterpret_cast<NCCALCSIZE_PARAMS*>(lParam))->rgrc[0]
1.4618 + : (reinterpret_cast<RECT*>(lParam));
1.4619 + clientRect->top += (mCaptionHeight - mNonClientOffset.top);
1.4620 + clientRect->left += (mHorResizeMargin - mNonClientOffset.left);
1.4621 + clientRect->right -= (mHorResizeMargin - mNonClientOffset.right);
1.4622 + clientRect->bottom -= (mVertResizeMargin - mNonClientOffset.bottom);
1.4623 +
1.4624 + result = true;
1.4625 + *aRetValue = 0;
1.4626 + }
1.4627 + break;
1.4628 + }
1.4629 +
1.4630 + case WM_NCHITTEST:
1.4631 + {
1.4632 + if (mMouseTransparent) {
1.4633 + // Treat this window as transparent.
1.4634 + *aRetValue = HTTRANSPARENT;
1.4635 + result = true;
1.4636 + break;
1.4637 + }
1.4638 +
1.4639 + /*
1.4640 + * If an nc client area margin has been moved, we are responsible
1.4641 + * for calculating where the resize margins are and returning the
1.4642 + * appropriate set of hit test constants. DwmDefWindowProc (above)
1.4643 + * will handle hit testing on it's command buttons if we are on a
1.4644 + * composited desktop.
1.4645 + */
1.4646 +
1.4647 + if (!mCustomNonClient)
1.4648 + break;
1.4649 +
1.4650 + *aRetValue =
1.4651 + ClientMarginHitTestPoint(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
1.4652 + result = true;
1.4653 + break;
1.4654 + }
1.4655 +
1.4656 + case WM_SETTEXT:
1.4657 + /*
1.4658 + * WM_SETTEXT paints the titlebar area. Avoid this if we have a
1.4659 + * custom titlebar we paint ourselves.
1.4660 + */
1.4661 +
1.4662 + if (!mCustomNonClient || mNonClientMargins.top == -1)
1.4663 + break;
1.4664 +
1.4665 + {
1.4666 + // From msdn, the way around this is to disable the visible state
1.4667 + // temporarily. We need the text to be set but we don't want the
1.4668 + // redraw to occur.
1.4669 + DWORD style = GetWindowLong(mWnd, GWL_STYLE);
1.4670 + SetWindowLong(mWnd, GWL_STYLE, style & ~WS_VISIBLE);
1.4671 + *aRetValue = CallWindowProcW(GetPrevWindowProc(), mWnd,
1.4672 + msg, wParam, lParam);
1.4673 + SetWindowLong(mWnd, GWL_STYLE, style);
1.4674 + return true;
1.4675 + }
1.4676 +
1.4677 + case WM_NCACTIVATE:
1.4678 + {
1.4679 + /*
1.4680 + * WM_NCACTIVATE paints nc areas. Avoid this and re-route painting
1.4681 + * through WM_NCPAINT via InvalidateNonClientRegion.
1.4682 + */
1.4683 + UpdateGetWindowInfoCaptionStatus(FALSE != wParam);
1.4684 +
1.4685 + if (!mCustomNonClient)
1.4686 + break;
1.4687 +
1.4688 + // let the dwm handle nc painting on glass
1.4689 + if(nsUXThemeData::CheckForCompositor())
1.4690 + break;
1.4691 +
1.4692 + if (wParam == TRUE) {
1.4693 + // going active
1.4694 + *aRetValue = FALSE; // ignored
1.4695 + result = true;
1.4696 + // invalidate to trigger a paint
1.4697 + InvalidateNonClientRegion();
1.4698 + break;
1.4699 + } else {
1.4700 + // going inactive
1.4701 + *aRetValue = TRUE; // go ahead and deactive
1.4702 + result = true;
1.4703 + // invalidate to trigger a paint
1.4704 + InvalidateNonClientRegion();
1.4705 + break;
1.4706 + }
1.4707 + }
1.4708 +
1.4709 + case WM_NCPAINT:
1.4710 + {
1.4711 + /*
1.4712 + * Reset the non-client paint region so that it excludes the
1.4713 + * non-client areas we paint manually. Then call defwndproc
1.4714 + * to do the actual painting.
1.4715 + */
1.4716 +
1.4717 + if (!mCustomNonClient)
1.4718 + break;
1.4719 +
1.4720 + // let the dwm handle nc painting on glass
1.4721 + if(nsUXThemeData::CheckForCompositor())
1.4722 + break;
1.4723 +
1.4724 + HRGN paintRgn = ExcludeNonClientFromPaintRegion((HRGN)wParam);
1.4725 + LRESULT res = CallWindowProcW(GetPrevWindowProc(), mWnd,
1.4726 + msg, (WPARAM)paintRgn, lParam);
1.4727 + if (paintRgn != (HRGN)wParam)
1.4728 + DeleteObject(paintRgn);
1.4729 + *aRetValue = res;
1.4730 + result = true;
1.4731 + }
1.4732 + break;
1.4733 +
1.4734 + case WM_POWERBROADCAST:
1.4735 + switch (wParam)
1.4736 + {
1.4737 + case PBT_APMSUSPEND:
1.4738 + PostSleepWakeNotification(true);
1.4739 + break;
1.4740 + case PBT_APMRESUMEAUTOMATIC:
1.4741 + case PBT_APMRESUMECRITICAL:
1.4742 + case PBT_APMRESUMESUSPEND:
1.4743 + PostSleepWakeNotification(false);
1.4744 + break;
1.4745 + }
1.4746 + break;
1.4747 +
1.4748 + case WM_CLOSE: // close request
1.4749 + if (mWidgetListener)
1.4750 + mWidgetListener->RequestWindowClose(this);
1.4751 + result = true; // abort window closure
1.4752 + break;
1.4753 +
1.4754 + case WM_DESTROY:
1.4755 + // clean up.
1.4756 + OnDestroy();
1.4757 + result = true;
1.4758 + break;
1.4759 +
1.4760 + case WM_PAINT:
1.4761 + if (CleartypeSettingChanged()) {
1.4762 + ForceFontUpdate();
1.4763 + gfxFontCache *fc = gfxFontCache::GetCache();
1.4764 + if (fc) {
1.4765 + fc->Flush();
1.4766 + }
1.4767 + }
1.4768 + *aRetValue = (int) OnPaint(nullptr, 0);
1.4769 + result = true;
1.4770 + break;
1.4771 +
1.4772 + case WM_PRINTCLIENT:
1.4773 + result = OnPaint((HDC) wParam, 0);
1.4774 + break;
1.4775 +
1.4776 + case WM_HOTKEY:
1.4777 + result = OnHotKey(wParam, lParam);
1.4778 + break;
1.4779 +
1.4780 + case WM_SYSCHAR:
1.4781 + case WM_CHAR:
1.4782 + {
1.4783 + MSG nativeMsg = WinUtils::InitMSG(msg, wParam, lParam, mWnd);
1.4784 + result = ProcessCharMessage(nativeMsg, nullptr);
1.4785 + DispatchPendingEvents();
1.4786 + }
1.4787 + break;
1.4788 +
1.4789 + case WM_SYSKEYUP:
1.4790 + case WM_KEYUP:
1.4791 + {
1.4792 + MSG nativeMsg = WinUtils::InitMSG(msg, wParam, lParam, mWnd);
1.4793 + nativeMsg.time = ::GetMessageTime();
1.4794 + result = ProcessKeyUpMessage(nativeMsg, nullptr);
1.4795 + DispatchPendingEvents();
1.4796 + }
1.4797 + break;
1.4798 +
1.4799 + case WM_SYSKEYDOWN:
1.4800 + case WM_KEYDOWN:
1.4801 + {
1.4802 + MSG nativeMsg = WinUtils::InitMSG(msg, wParam, lParam, mWnd);
1.4803 + result = ProcessKeyDownMessage(nativeMsg, nullptr);
1.4804 + DispatchPendingEvents();
1.4805 + }
1.4806 + break;
1.4807 +
1.4808 + // say we've dealt with erase background if widget does
1.4809 + // not need auto-erasing
1.4810 + case WM_ERASEBKGND:
1.4811 + if (!AutoErase((HDC)wParam)) {
1.4812 + *aRetValue = 1;
1.4813 + result = true;
1.4814 + }
1.4815 + break;
1.4816 +
1.4817 + case WM_MOUSEMOVE:
1.4818 + {
1.4819 + mMousePresent = true;
1.4820 +
1.4821 + // Suppress dispatch of pending events
1.4822 + // when mouse moves are generated by widget
1.4823 + // creation instead of user input.
1.4824 + LPARAM lParamScreen = lParamToScreen(lParam);
1.4825 + POINT mp;
1.4826 + mp.x = GET_X_LPARAM(lParamScreen);
1.4827 + mp.y = GET_Y_LPARAM(lParamScreen);
1.4828 + bool userMovedMouse = false;
1.4829 + if ((sLastMouseMovePoint.x != mp.x) || (sLastMouseMovePoint.y != mp.y)) {
1.4830 + userMovedMouse = true;
1.4831 + }
1.4832 +
1.4833 + result = DispatchMouseEvent(NS_MOUSE_MOVE, wParam, lParam,
1.4834 + false, WidgetMouseEvent::eLeftButton,
1.4835 + MOUSE_INPUT_SOURCE());
1.4836 + if (userMovedMouse) {
1.4837 + DispatchPendingEvents();
1.4838 + }
1.4839 + }
1.4840 + break;
1.4841 +
1.4842 + case WM_NCMOUSEMOVE:
1.4843 + // If we receive a mouse move event on non-client chrome, make sure and
1.4844 + // send an NS_MOUSE_EXIT event as well.
1.4845 + if (mMousePresent && !sIsInMouseCapture)
1.4846 + SendMessage(mWnd, WM_MOUSELEAVE, 0, 0);
1.4847 + break;
1.4848 +
1.4849 + case WM_LBUTTONDOWN:
1.4850 + {
1.4851 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam, lParam,
1.4852 + false, WidgetMouseEvent::eLeftButton,
1.4853 + MOUSE_INPUT_SOURCE());
1.4854 + DispatchPendingEvents();
1.4855 + }
1.4856 + break;
1.4857 +
1.4858 + case WM_LBUTTONUP:
1.4859 + {
1.4860 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam, lParam,
1.4861 + false, WidgetMouseEvent::eLeftButton,
1.4862 + MOUSE_INPUT_SOURCE());
1.4863 + DispatchPendingEvents();
1.4864 + }
1.4865 + break;
1.4866 +
1.4867 + case WM_MOUSELEAVE:
1.4868 + {
1.4869 + if (!mMousePresent)
1.4870 + break;
1.4871 + mMousePresent = false;
1.4872 +
1.4873 + // We need to check mouse button states and put them in for
1.4874 + // wParam.
1.4875 + WPARAM mouseState = (GetKeyState(VK_LBUTTON) ? MK_LBUTTON : 0)
1.4876 + | (GetKeyState(VK_MBUTTON) ? MK_MBUTTON : 0)
1.4877 + | (GetKeyState(VK_RBUTTON) ? MK_RBUTTON : 0);
1.4878 + // Synthesize an event position because we don't get one from
1.4879 + // WM_MOUSELEAVE.
1.4880 + LPARAM pos = lParamToClient(::GetMessagePos());
1.4881 + DispatchMouseEvent(NS_MOUSE_EXIT, mouseState, pos, false,
1.4882 + WidgetMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE());
1.4883 + }
1.4884 + break;
1.4885 +
1.4886 + case WM_CONTEXTMENU:
1.4887 + {
1.4888 + // if the context menu is brought up from the keyboard, |lParam|
1.4889 + // will be -1.
1.4890 + LPARAM pos;
1.4891 + bool contextMenukey = false;
1.4892 + if (lParam == -1)
1.4893 + {
1.4894 + contextMenukey = true;
1.4895 + pos = lParamToClient(GetMessagePos());
1.4896 + }
1.4897 + else
1.4898 + {
1.4899 + pos = lParamToClient(lParam);
1.4900 + }
1.4901 +
1.4902 + result = DispatchMouseEvent(NS_CONTEXTMENU, wParam, pos, contextMenukey,
1.4903 + contextMenukey ?
1.4904 + WidgetMouseEvent::eLeftButton :
1.4905 + WidgetMouseEvent::eRightButton,
1.4906 + MOUSE_INPUT_SOURCE());
1.4907 + if (lParam != -1 && !result && mCustomNonClient) {
1.4908 + WidgetMouseEvent event(true, NS_MOUSE_MOZHITTEST, this,
1.4909 + WidgetMouseEvent::eReal,
1.4910 + WidgetMouseEvent::eNormal);
1.4911 + event.refPoint = LayoutDeviceIntPoint(GET_X_LPARAM(pos), GET_Y_LPARAM(pos));
1.4912 + event.inputSource = MOUSE_INPUT_SOURCE();
1.4913 + event.mFlags.mOnlyChromeDispatch = true;
1.4914 + if (DispatchWindowEvent(&event)) {
1.4915 + // Blank area hit, throw up the system menu.
1.4916 + DisplaySystemMenu(mWnd, mSizeMode, mIsRTL, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
1.4917 + result = true;
1.4918 + }
1.4919 + }
1.4920 + }
1.4921 + break;
1.4922 +
1.4923 + case WM_LBUTTONDBLCLK:
1.4924 + result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam,
1.4925 + lParam, false,
1.4926 + WidgetMouseEvent::eLeftButton,
1.4927 + MOUSE_INPUT_SOURCE());
1.4928 + DispatchPendingEvents();
1.4929 + break;
1.4930 +
1.4931 + case WM_MBUTTONDOWN:
1.4932 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam,
1.4933 + lParam, false,
1.4934 + WidgetMouseEvent::eMiddleButton,
1.4935 + MOUSE_INPUT_SOURCE());
1.4936 + DispatchPendingEvents();
1.4937 + break;
1.4938 +
1.4939 + case WM_MBUTTONUP:
1.4940 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam,
1.4941 + lParam, false,
1.4942 + WidgetMouseEvent::eMiddleButton,
1.4943 + MOUSE_INPUT_SOURCE());
1.4944 + DispatchPendingEvents();
1.4945 + break;
1.4946 +
1.4947 + case WM_MBUTTONDBLCLK:
1.4948 + result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam,
1.4949 + lParam, false,
1.4950 + WidgetMouseEvent::eMiddleButton,
1.4951 + MOUSE_INPUT_SOURCE());
1.4952 + DispatchPendingEvents();
1.4953 + break;
1.4954 +
1.4955 + case WM_NCMBUTTONDOWN:
1.4956 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, 0,
1.4957 + lParamToClient(lParam), false,
1.4958 + WidgetMouseEvent::eMiddleButton,
1.4959 + MOUSE_INPUT_SOURCE());
1.4960 + DispatchPendingEvents();
1.4961 + break;
1.4962 +
1.4963 + case WM_NCMBUTTONUP:
1.4964 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0,
1.4965 + lParamToClient(lParam), false,
1.4966 + WidgetMouseEvent::eMiddleButton,
1.4967 + MOUSE_INPUT_SOURCE());
1.4968 + DispatchPendingEvents();
1.4969 + break;
1.4970 +
1.4971 + case WM_NCMBUTTONDBLCLK:
1.4972 + result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0,
1.4973 + lParamToClient(lParam), false,
1.4974 + WidgetMouseEvent::eMiddleButton,
1.4975 + MOUSE_INPUT_SOURCE());
1.4976 + DispatchPendingEvents();
1.4977 + break;
1.4978 +
1.4979 + case WM_RBUTTONDOWN:
1.4980 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam,
1.4981 + lParam, false,
1.4982 + WidgetMouseEvent::eRightButton,
1.4983 + MOUSE_INPUT_SOURCE());
1.4984 + DispatchPendingEvents();
1.4985 + break;
1.4986 +
1.4987 + case WM_RBUTTONUP:
1.4988 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam,
1.4989 + lParam, false,
1.4990 + WidgetMouseEvent::eRightButton,
1.4991 + MOUSE_INPUT_SOURCE());
1.4992 + DispatchPendingEvents();
1.4993 + break;
1.4994 +
1.4995 + case WM_RBUTTONDBLCLK:
1.4996 + result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam,
1.4997 + lParam, false,
1.4998 + WidgetMouseEvent::eRightButton,
1.4999 + MOUSE_INPUT_SOURCE());
1.5000 + DispatchPendingEvents();
1.5001 + break;
1.5002 +
1.5003 + case WM_NCRBUTTONDOWN:
1.5004 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, 0,
1.5005 + lParamToClient(lParam), false,
1.5006 + WidgetMouseEvent::eRightButton,
1.5007 + MOUSE_INPUT_SOURCE());
1.5008 + DispatchPendingEvents();
1.5009 + break;
1.5010 +
1.5011 + case WM_NCRBUTTONUP:
1.5012 + result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0,
1.5013 + lParamToClient(lParam), false,
1.5014 + WidgetMouseEvent::eRightButton,
1.5015 + MOUSE_INPUT_SOURCE());
1.5016 + DispatchPendingEvents();
1.5017 + break;
1.5018 +
1.5019 + case WM_NCRBUTTONDBLCLK:
1.5020 + result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0,
1.5021 + lParamToClient(lParam), false,
1.5022 + WidgetMouseEvent::eRightButton,
1.5023 + MOUSE_INPUT_SOURCE());
1.5024 + DispatchPendingEvents();
1.5025 + break;
1.5026 +
1.5027 + case WM_EXITSIZEMOVE:
1.5028 + if (!sIsInMouseCapture) {
1.5029 + NotifySizeMoveDone();
1.5030 + }
1.5031 + break;
1.5032 +
1.5033 + case WM_NCLBUTTONDBLCLK:
1.5034 + DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0, lParamToClient(lParam),
1.5035 + false, WidgetMouseEvent::eLeftButton,
1.5036 + MOUSE_INPUT_SOURCE());
1.5037 + result =
1.5038 + DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0, lParamToClient(lParam),
1.5039 + false, WidgetMouseEvent::eLeftButton,
1.5040 + MOUSE_INPUT_SOURCE());
1.5041 + DispatchPendingEvents();
1.5042 + break;
1.5043 +
1.5044 + case WM_APPCOMMAND:
1.5045 + result = HandleAppCommandMsg(wParam, lParam, aRetValue);
1.5046 + break;
1.5047 +
1.5048 + // The WM_ACTIVATE event is fired when a window is raised or lowered,
1.5049 + // and the loword of wParam specifies which. But we don't want to tell
1.5050 + // the focus system about this until the WM_SETFOCUS or WM_KILLFOCUS
1.5051 + // events are fired. Instead, set either the sJustGotActivate or
1.5052 + // gJustGotDeactivate flags and activate/deactivate once the focus
1.5053 + // events arrive.
1.5054 + case WM_ACTIVATE:
1.5055 + if (mWidgetListener) {
1.5056 + int32_t fActive = LOWORD(wParam);
1.5057 +
1.5058 + if (WA_INACTIVE == fActive) {
1.5059 + // when minimizing a window, the deactivation and focus events will
1.5060 + // be fired in the reverse order. Instead, just deactivate right away.
1.5061 + if (HIWORD(wParam))
1.5062 + DispatchFocusToTopLevelWindow(false);
1.5063 + else
1.5064 + sJustGotDeactivate = true;
1.5065 +
1.5066 + if (mIsTopWidgetWindow)
1.5067 + mLastKeyboardLayout = KeyboardLayout::GetInstance()->GetLayout();
1.5068 +
1.5069 + } else {
1.5070 + StopFlashing();
1.5071 +
1.5072 + sJustGotActivate = true;
1.5073 + WidgetMouseEvent event(true, NS_MOUSE_ACTIVATE, this,
1.5074 + WidgetMouseEvent::eReal);
1.5075 + InitEvent(event);
1.5076 + ModifierKeyState modifierKeyState;
1.5077 + modifierKeyState.InitInputEvent(event);
1.5078 + DispatchWindowEvent(&event);
1.5079 + if (sSwitchKeyboardLayout && mLastKeyboardLayout)
1.5080 + ActivateKeyboardLayout(mLastKeyboardLayout, 0);
1.5081 + }
1.5082 + }
1.5083 + break;
1.5084 +
1.5085 + case WM_MOUSEACTIVATE:
1.5086 + // A popup with a parent owner should not be activated when clicked but
1.5087 + // should still allow the mouse event to be fired, so the return value
1.5088 + // is set to MA_NOACTIVATE. But if the owner isn't the frontmost window,
1.5089 + // just use default processing so that the window is activated.
1.5090 + if (IsPopup() && IsOwnerForegroundWindow()) {
1.5091 + *aRetValue = MA_NOACTIVATE;
1.5092 + result = true;
1.5093 + }
1.5094 + break;
1.5095 +
1.5096 + case WM_WINDOWPOSCHANGING:
1.5097 + {
1.5098 + LPWINDOWPOS info = (LPWINDOWPOS)lParam;
1.5099 + OnWindowPosChanging(info);
1.5100 + result = true;
1.5101 + }
1.5102 + break;
1.5103 +
1.5104 + case WM_GETMINMAXINFO:
1.5105 + {
1.5106 + MINMAXINFO* mmi = (MINMAXINFO*)lParam;
1.5107 + // Set the constraints. The minimum size should also be constrained to the
1.5108 + // default window maximum size so that it fits on screen.
1.5109 + mmi->ptMinTrackSize.x =
1.5110 + std::min((int32_t)mmi->ptMaxTrackSize.x,
1.5111 + std::max((int32_t)mmi->ptMinTrackSize.x, mSizeConstraints.mMinSize.width));
1.5112 + mmi->ptMinTrackSize.y =
1.5113 + std::min((int32_t)mmi->ptMaxTrackSize.y,
1.5114 + std::max((int32_t)mmi->ptMinTrackSize.y, mSizeConstraints.mMinSize.height));
1.5115 + mmi->ptMaxTrackSize.x = std::min((int32_t)mmi->ptMaxTrackSize.x, mSizeConstraints.mMaxSize.width);
1.5116 + mmi->ptMaxTrackSize.y = std::min((int32_t)mmi->ptMaxTrackSize.y, mSizeConstraints.mMaxSize.height);
1.5117 + }
1.5118 + break;
1.5119 +
1.5120 + case WM_SETFOCUS:
1.5121 + // If previous focused window isn't ours, it must have received the
1.5122 + // redirected message. So, we should forget it.
1.5123 + if (!WinUtils::IsOurProcessWindow(HWND(wParam))) {
1.5124 + RedirectedKeyDownMessageManager::Forget();
1.5125 + }
1.5126 + if (sJustGotActivate) {
1.5127 + DispatchFocusToTopLevelWindow(true);
1.5128 + }
1.5129 + break;
1.5130 +
1.5131 + case WM_KILLFOCUS:
1.5132 + if (sJustGotDeactivate) {
1.5133 + DispatchFocusToTopLevelWindow(false);
1.5134 + }
1.5135 + break;
1.5136 +
1.5137 + case WM_WINDOWPOSCHANGED:
1.5138 + {
1.5139 + WINDOWPOS* wp = (LPWINDOWPOS)lParam;
1.5140 + OnWindowPosChanged(wp);
1.5141 + result = true;
1.5142 + }
1.5143 + break;
1.5144 +
1.5145 + case WM_INPUTLANGCHANGEREQUEST:
1.5146 + *aRetValue = TRUE;
1.5147 + result = false;
1.5148 + break;
1.5149 +
1.5150 + case WM_INPUTLANGCHANGE:
1.5151 + KeyboardLayout::GetInstance()->
1.5152 + OnLayoutChange(reinterpret_cast<HKL>(lParam));
1.5153 + result = false; // always pass to child window
1.5154 + break;
1.5155 +
1.5156 + case WM_DESTROYCLIPBOARD:
1.5157 + {
1.5158 + nsIClipboard* clipboard;
1.5159 + nsresult rv = CallGetService(kCClipboardCID, &clipboard);
1.5160 + if(NS_SUCCEEDED(rv)) {
1.5161 + clipboard->EmptyClipboard(nsIClipboard::kGlobalClipboard);
1.5162 + NS_RELEASE(clipboard);
1.5163 + }
1.5164 + }
1.5165 + break;
1.5166 +
1.5167 +#ifdef ACCESSIBILITY
1.5168 + case WM_GETOBJECT:
1.5169 + {
1.5170 + *aRetValue = 0;
1.5171 + // Do explicit casting to make it working on 64bit systems (see bug 649236
1.5172 + // for details).
1.5173 + DWORD objId = static_cast<DWORD>(lParam);
1.5174 + if (objId == OBJID_CLIENT) { // oleacc.dll will be loaded dynamically
1.5175 + a11y::Accessible* rootAccessible = GetAccessible(); // Held by a11y cache
1.5176 + if (rootAccessible) {
1.5177 + IAccessible *msaaAccessible = nullptr;
1.5178 + rootAccessible->GetNativeInterface((void**)&msaaAccessible); // does an addref
1.5179 + if (msaaAccessible) {
1.5180 + *aRetValue = LresultFromObject(IID_IAccessible, wParam, msaaAccessible); // does an addref
1.5181 + msaaAccessible->Release(); // release extra addref
1.5182 + result = true; // We handled the WM_GETOBJECT message
1.5183 + }
1.5184 + }
1.5185 + }
1.5186 + }
1.5187 +#endif
1.5188 +
1.5189 + case WM_SYSCOMMAND:
1.5190 + {
1.5191 + WPARAM filteredWParam = (wParam &0xFFF0);
1.5192 + // prevent Windows from trimming the working set. bug 76831
1.5193 + if (!sTrimOnMinimize && filteredWParam == SC_MINIMIZE) {
1.5194 + ::ShowWindow(mWnd, SW_SHOWMINIMIZED);
1.5195 + result = true;
1.5196 + }
1.5197 +
1.5198 + // Handle the system menu manually when we're in full screen mode
1.5199 + // so we can set the appropriate options.
1.5200 + if (filteredWParam == SC_KEYMENU && lParam == VK_SPACE &&
1.5201 + mSizeMode == nsSizeMode_Fullscreen) {
1.5202 + DisplaySystemMenu(mWnd, mSizeMode, mIsRTL,
1.5203 + MOZ_SYSCONTEXT_X_POS,
1.5204 + MOZ_SYSCONTEXT_Y_POS);
1.5205 + result = true;
1.5206 + }
1.5207 + }
1.5208 + break;
1.5209 +
1.5210 + case WM_DWMCOMPOSITIONCHANGED:
1.5211 + // First, update the compositor state to latest one. All other methods
1.5212 + // should use same state as here for consistency painting.
1.5213 + nsUXThemeData::CheckForCompositor(true);
1.5214 +
1.5215 + UpdateNonClientMargins();
1.5216 + BroadcastMsg(mWnd, WM_DWMCOMPOSITIONCHANGED);
1.5217 + NotifyThemeChanged();
1.5218 + UpdateGlass();
1.5219 + Invalidate(true, true, true);
1.5220 + break;
1.5221 +
1.5222 + case WM_UPDATEUISTATE:
1.5223 + {
1.5224 + // If the UI state has changed, fire an event so the UI updates the
1.5225 + // keyboard cues based on the system setting and how the window was
1.5226 + // opened. For example, a dialog opened via a keyboard press on a button
1.5227 + // should enable cues, whereas the same dialog opened via a mouse click of
1.5228 + // the button should not.
1.5229 + int32_t action = LOWORD(wParam);
1.5230 + if (action == UIS_SET || action == UIS_CLEAR) {
1.5231 + int32_t flags = HIWORD(wParam);
1.5232 + UIStateChangeType showAccelerators = UIStateChangeType_NoChange;
1.5233 + UIStateChangeType showFocusRings = UIStateChangeType_NoChange;
1.5234 + if (flags & UISF_HIDEACCEL)
1.5235 + showAccelerators = (action == UIS_SET) ? UIStateChangeType_Clear : UIStateChangeType_Set;
1.5236 + if (flags & UISF_HIDEFOCUS)
1.5237 + showFocusRings = (action == UIS_SET) ? UIStateChangeType_Clear : UIStateChangeType_Set;
1.5238 + NotifyUIStateChanged(showAccelerators, showFocusRings);
1.5239 + }
1.5240 +
1.5241 + break;
1.5242 + }
1.5243 +
1.5244 + /* Gesture support events */
1.5245 + case WM_TABLET_QUERYSYSTEMGESTURESTATUS:
1.5246 + // According to MS samples, this must be handled to enable
1.5247 + // rotational support in multi-touch drivers.
1.5248 + result = true;
1.5249 + *aRetValue = TABLET_ROTATE_GESTURE_ENABLE;
1.5250 + break;
1.5251 +
1.5252 + case WM_TOUCH:
1.5253 + result = OnTouch(wParam, lParam);
1.5254 + if (result) {
1.5255 + *aRetValue = 0;
1.5256 + }
1.5257 + break;
1.5258 +
1.5259 + case WM_GESTURE:
1.5260 + result = OnGesture(wParam, lParam);
1.5261 + break;
1.5262 +
1.5263 + case WM_GESTURENOTIFY:
1.5264 + {
1.5265 + if (mWindowType != eWindowType_invisible &&
1.5266 + mWindowType != eWindowType_plugin) {
1.5267 + // A GestureNotify event is dispatched to decide which single-finger panning
1.5268 + // direction should be active (including none) and if pan feedback should
1.5269 + // be displayed. Java and plugin windows can make their own calls.
1.5270 + if (gIsPointerEventsEnabled) {
1.5271 + result = false;
1.5272 + break;
1.5273 + }
1.5274 +
1.5275 + GESTURENOTIFYSTRUCT * gestureinfo = (GESTURENOTIFYSTRUCT*)lParam;
1.5276 + nsPointWin touchPoint;
1.5277 + touchPoint = gestureinfo->ptsLocation;
1.5278 + touchPoint.ScreenToClient(mWnd);
1.5279 + WidgetGestureNotifyEvent gestureNotifyEvent(true,
1.5280 + NS_GESTURENOTIFY_EVENT_START, this);
1.5281 + gestureNotifyEvent.refPoint = LayoutDeviceIntPoint::FromUntyped(touchPoint);
1.5282 + nsEventStatus status;
1.5283 + DispatchEvent(&gestureNotifyEvent, status);
1.5284 + mDisplayPanFeedback = gestureNotifyEvent.displayPanFeedback;
1.5285 + if (!mTouchWindow)
1.5286 + mGesture.SetWinGestureSupport(mWnd, gestureNotifyEvent.panDirection);
1.5287 + }
1.5288 + result = false; //should always bubble to DefWindowProc
1.5289 + }
1.5290 + break;
1.5291 +
1.5292 + case WM_CLEAR:
1.5293 + {
1.5294 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_DELETE, this);
1.5295 + DispatchWindowEvent(&command);
1.5296 + result = true;
1.5297 + }
1.5298 + break;
1.5299 +
1.5300 + case WM_CUT:
1.5301 + {
1.5302 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_CUT, this);
1.5303 + DispatchWindowEvent(&command);
1.5304 + result = true;
1.5305 + }
1.5306 + break;
1.5307 +
1.5308 + case WM_COPY:
1.5309 + {
1.5310 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_COPY, this);
1.5311 + DispatchWindowEvent(&command);
1.5312 + result = true;
1.5313 + }
1.5314 + break;
1.5315 +
1.5316 + case WM_PASTE:
1.5317 + {
1.5318 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_PASTE, this);
1.5319 + DispatchWindowEvent(&command);
1.5320 + result = true;
1.5321 + }
1.5322 + break;
1.5323 +
1.5324 + case EM_UNDO:
1.5325 + {
1.5326 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_UNDO, this);
1.5327 + DispatchWindowEvent(&command);
1.5328 + *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled);
1.5329 + result = true;
1.5330 + }
1.5331 + break;
1.5332 +
1.5333 + case EM_REDO:
1.5334 + {
1.5335 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_REDO, this);
1.5336 + DispatchWindowEvent(&command);
1.5337 + *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled);
1.5338 + result = true;
1.5339 + }
1.5340 + break;
1.5341 +
1.5342 + case EM_CANPASTE:
1.5343 + {
1.5344 + // Support EM_CANPASTE message only when wParam isn't specified or
1.5345 + // is plain text format.
1.5346 + if (wParam == 0 || wParam == CF_TEXT || wParam == CF_UNICODETEXT) {
1.5347 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_PASTE,
1.5348 + this, true);
1.5349 + DispatchWindowEvent(&command);
1.5350 + *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled);
1.5351 + result = true;
1.5352 + }
1.5353 + }
1.5354 + break;
1.5355 +
1.5356 + case EM_CANUNDO:
1.5357 + {
1.5358 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_UNDO,
1.5359 + this, true);
1.5360 + DispatchWindowEvent(&command);
1.5361 + *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled);
1.5362 + result = true;
1.5363 + }
1.5364 + break;
1.5365 +
1.5366 + case EM_CANREDO:
1.5367 + {
1.5368 + WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_REDO,
1.5369 + this, true);
1.5370 + DispatchWindowEvent(&command);
1.5371 + *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled);
1.5372 + result = true;
1.5373 + }
1.5374 + break;
1.5375 +
1.5376 + default:
1.5377 + {
1.5378 + if (msg == nsAppShell::GetTaskbarButtonCreatedMessage())
1.5379 + SetHasTaskbarIconBeenCreated();
1.5380 + if (msg == sOOPPPluginFocusEvent) {
1.5381 + if (wParam == 1) {
1.5382 + // With OOPP, the plugin window exists in another process and is a child of
1.5383 + // this window. This window is a placeholder plugin window for the dom. We
1.5384 + // receive this event when the child window receives focus. (sent from
1.5385 + // PluginInstanceParent.cpp)
1.5386 + ::SendMessage(mWnd, WM_MOUSEACTIVATE, 0, 0); // See nsPluginNativeWindowWin.cpp
1.5387 + } else {
1.5388 + // WM_KILLFOCUS was received by the child process.
1.5389 + if (sJustGotDeactivate) {
1.5390 + DispatchFocusToTopLevelWindow(false);
1.5391 + }
1.5392 + }
1.5393 + }
1.5394 + }
1.5395 + break;
1.5396 + case WM_SETTINGCHANGE:
1.5397 + if (IsWin8OrLater() && lParam &&
1.5398 + !wcsicmp(L"ConvertibleSlateMode", (wchar_t*)lParam)) {
1.5399 + // If we're switching into slate mode, switch to Metro for hardware
1.5400 + // that supports this feature if the pref is set.
1.5401 + if (GetSystemMetrics(SM_CONVERTIBLESLATEMODE) == 0 &&
1.5402 + Preferences::GetBool("browser.shell.desktop-auto-switch-enabled",
1.5403 + false)) {
1.5404 + nsCOMPtr<nsIAppStartup> appStartup(do_GetService(NS_APPSTARTUP_CONTRACTID));
1.5405 + if (appStartup) {
1.5406 + appStartup->Quit(nsIAppStartup::eForceQuit |
1.5407 + nsIAppStartup::eRestartTouchEnvironment);
1.5408 + }
1.5409 + }
1.5410 + }
1.5411 + break;
1.5412 +
1.5413 + }
1.5414 +
1.5415 + //*aRetValue = result;
1.5416 + if (mWnd) {
1.5417 + return result;
1.5418 + }
1.5419 + else {
1.5420 + //Events which caused mWnd destruction and aren't consumed
1.5421 + //will crash during the Windows default processing.
1.5422 + return true;
1.5423 + }
1.5424 +}
1.5425 +
1.5426 +/**************************************************************
1.5427 + *
1.5428 + * SECTION: Broadcast messaging
1.5429 + *
1.5430 + * Broadcast messages to all windows.
1.5431 + *
1.5432 + **************************************************************/
1.5433 +
1.5434 +// Enumerate all child windows sending aMsg to each of them
1.5435 +BOOL CALLBACK nsWindow::BroadcastMsgToChildren(HWND aWnd, LPARAM aMsg)
1.5436 +{
1.5437 + WNDPROC winProc = (WNDPROC)::GetWindowLongPtrW(aWnd, GWLP_WNDPROC);
1.5438 + if (winProc == &nsWindow::WindowProc) {
1.5439 + // it's one of our windows so go ahead and send a message to it
1.5440 + ::CallWindowProcW(winProc, aWnd, aMsg, 0, 0);
1.5441 + }
1.5442 + return TRUE;
1.5443 +}
1.5444 +
1.5445 +// Enumerate all top level windows specifying that the children of each
1.5446 +// top level window should be enumerated. Do *not* send the message to
1.5447 +// each top level window since it is assumed that the toolkit will send
1.5448 +// aMsg to them directly.
1.5449 +BOOL CALLBACK nsWindow::BroadcastMsg(HWND aTopWindow, LPARAM aMsg)
1.5450 +{
1.5451 + // Iterate each of aTopWindows child windows sending the aMsg
1.5452 + // to each of them.
1.5453 + ::EnumChildWindows(aTopWindow, nsWindow::BroadcastMsgToChildren, aMsg);
1.5454 + return TRUE;
1.5455 +}
1.5456 +
1.5457 +/**************************************************************
1.5458 + *
1.5459 + * SECTION: Event processing helpers
1.5460 + *
1.5461 + * Special processing for certain event types and
1.5462 + * synthesized events.
1.5463 + *
1.5464 + **************************************************************/
1.5465 +
1.5466 +int32_t
1.5467 +nsWindow::ClientMarginHitTestPoint(int32_t mx, int32_t my)
1.5468 +{
1.5469 + if (mSizeMode == nsSizeMode_Minimized ||
1.5470 + mSizeMode == nsSizeMode_Fullscreen) {
1.5471 + return HTCLIENT;
1.5472 + }
1.5473 +
1.5474 + // Calculations are done in screen coords
1.5475 + RECT winRect;
1.5476 + GetWindowRect(mWnd, &winRect);
1.5477 +
1.5478 + // hit return constants:
1.5479 + // HTBORDER - non-resizable border
1.5480 + // HTBOTTOM, HTLEFT, HTRIGHT, HTTOP - resizable border
1.5481 + // HTBOTTOMLEFT, HTBOTTOMRIGHT - resizable corner
1.5482 + // HTTOPLEFT, HTTOPRIGHT - resizable corner
1.5483 + // HTCAPTION - general title bar area
1.5484 + // HTCLIENT - area considered the client
1.5485 + // HTCLOSE - hovering over the close button
1.5486 + // HTMAXBUTTON - maximize button
1.5487 + // HTMINBUTTON - minimize button
1.5488 +
1.5489 + int32_t testResult = HTCLIENT;
1.5490 +
1.5491 + bool isResizable = (mBorderStyle & (eBorderStyle_all |
1.5492 + eBorderStyle_resizeh |
1.5493 + eBorderStyle_default)) > 0 ? true : false;
1.5494 + if (mSizeMode == nsSizeMode_Maximized)
1.5495 + isResizable = false;
1.5496 +
1.5497 + // Ensure being accessible to borders of window. Even if contents are in
1.5498 + // this area, the area must behave as border.
1.5499 + nsIntMargin nonClientSize(std::max(mCaptionHeight - mNonClientOffset.top,
1.5500 + kResizableBorderMinSize),
1.5501 + std::max(mHorResizeMargin - mNonClientOffset.right,
1.5502 + kResizableBorderMinSize),
1.5503 + std::max(mVertResizeMargin - mNonClientOffset.bottom,
1.5504 + kResizableBorderMinSize),
1.5505 + std::max(mHorResizeMargin - mNonClientOffset.left,
1.5506 + kResizableBorderMinSize));
1.5507 +
1.5508 + bool allowContentOverride = mSizeMode == nsSizeMode_Maximized ||
1.5509 + (mx >= winRect.left + nonClientSize.left &&
1.5510 + mx <= winRect.right - nonClientSize.right &&
1.5511 + my >= winRect.top + nonClientSize.top &&
1.5512 + my <= winRect.bottom - nonClientSize.bottom);
1.5513 +
1.5514 + // The border size. If there is no content under mouse cursor, the border
1.5515 + // size should be larger than the values in system settings. Otherwise,
1.5516 + // contents under the mouse cursor should be able to override the behavior.
1.5517 + // E.g., user must expect that Firefox button always opens the popup menu
1.5518 + // even when the user clicks on the above edge of it.
1.5519 + nsIntMargin borderSize(std::max(nonClientSize.top, mVertResizeMargin),
1.5520 + std::max(nonClientSize.right, mHorResizeMargin),
1.5521 + std::max(nonClientSize.bottom, mVertResizeMargin),
1.5522 + std::max(nonClientSize.left, mHorResizeMargin));
1.5523 +
1.5524 + bool top = false;
1.5525 + bool bottom = false;
1.5526 + bool left = false;
1.5527 + bool right = false;
1.5528 +
1.5529 + if (my >= winRect.top && my < winRect.top + borderSize.top) {
1.5530 + top = true;
1.5531 + } else if (my <= winRect.bottom && my > winRect.bottom - borderSize.bottom) {
1.5532 + bottom = true;
1.5533 + }
1.5534 +
1.5535 + // (the 2x case here doubles the resize area for corners)
1.5536 + int multiplier = (top || bottom) ? 2 : 1;
1.5537 + if (mx >= winRect.left &&
1.5538 + mx < winRect.left + (multiplier * borderSize.left)) {
1.5539 + left = true;
1.5540 + } else if (mx <= winRect.right &&
1.5541 + mx > winRect.right - (multiplier * borderSize.right)) {
1.5542 + right = true;
1.5543 + }
1.5544 +
1.5545 + if (isResizable) {
1.5546 + if (top) {
1.5547 + testResult = HTTOP;
1.5548 + if (left)
1.5549 + testResult = HTTOPLEFT;
1.5550 + else if (right)
1.5551 + testResult = HTTOPRIGHT;
1.5552 + } else if (bottom) {
1.5553 + testResult = HTBOTTOM;
1.5554 + if (left)
1.5555 + testResult = HTBOTTOMLEFT;
1.5556 + else if (right)
1.5557 + testResult = HTBOTTOMRIGHT;
1.5558 + } else {
1.5559 + if (left)
1.5560 + testResult = HTLEFT;
1.5561 + if (right)
1.5562 + testResult = HTRIGHT;
1.5563 + }
1.5564 + } else {
1.5565 + if (top)
1.5566 + testResult = HTCAPTION;
1.5567 + else if (bottom || left || right)
1.5568 + testResult = HTBORDER;
1.5569 + }
1.5570 +
1.5571 + if (!sIsInMouseCapture && allowContentOverride) {
1.5572 + POINT pt = { mx, my };
1.5573 + ::ScreenToClient(mWnd, &pt);
1.5574 + if (pt.x == mCachedHitTestPoint.x && pt.y == mCachedHitTestPoint.y &&
1.5575 + TimeStamp::Now() - mCachedHitTestTime < TimeDuration::FromMilliseconds(HITTEST_CACHE_LIFETIME_MS)) {
1.5576 + testResult = mCachedHitTestResult;
1.5577 + } else {
1.5578 + WidgetMouseEvent event(true, NS_MOUSE_MOZHITTEST, this,
1.5579 + WidgetMouseEvent::eReal,
1.5580 + WidgetMouseEvent::eNormal);
1.5581 + event.refPoint = LayoutDeviceIntPoint(pt.x, pt.y);
1.5582 + event.inputSource = MOUSE_INPUT_SOURCE();
1.5583 + event.mFlags.mOnlyChromeDispatch = true;
1.5584 + bool result = DispatchWindowEvent(&event);
1.5585 + if (result) {
1.5586 + // The mouse is over a blank area
1.5587 + testResult = testResult == HTCLIENT ? HTCAPTION : testResult;
1.5588 +
1.5589 + } else {
1.5590 + // There's content over the mouse pointer. Set HTCLIENT
1.5591 + // to possibly override a resizer border.
1.5592 + testResult = HTCLIENT;
1.5593 + }
1.5594 + mCachedHitTestPoint = pt;
1.5595 + mCachedHitTestTime = TimeStamp::Now();
1.5596 + mCachedHitTestResult = testResult;
1.5597 + }
1.5598 + }
1.5599 +
1.5600 + return testResult;
1.5601 +}
1.5602 +
1.5603 +void nsWindow::PostSleepWakeNotification(const bool aIsSleepMode)
1.5604 +{
1.5605 + if (aIsSleepMode == gIsSleepMode)
1.5606 + return;
1.5607 +
1.5608 + gIsSleepMode = aIsSleepMode;
1.5609 +
1.5610 + nsCOMPtr<nsIObserverService> observerService =
1.5611 + mozilla::services::GetObserverService();
1.5612 + if (observerService)
1.5613 + observerService->NotifyObservers(nullptr,
1.5614 + aIsSleepMode ? NS_WIDGET_SLEEP_OBSERVER_TOPIC :
1.5615 + NS_WIDGET_WAKE_OBSERVER_TOPIC, nullptr);
1.5616 +}
1.5617 +
1.5618 +LRESULT nsWindow::ProcessCharMessage(const MSG &aMsg, bool *aEventDispatched)
1.5619 +{
1.5620 + if (IMEHandler::IsComposingOn(this)) {
1.5621 + IMEHandler::NotifyIME(this, REQUEST_TO_COMMIT_COMPOSITION);
1.5622 + }
1.5623 + // These must be checked here too as a lone WM_CHAR could be received
1.5624 + // if a child window didn't handle it (for example Alt+Space in a content
1.5625 + // window)
1.5626 + ModifierKeyState modKeyState;
1.5627 + NativeKey nativeKey(this, aMsg, modKeyState);
1.5628 + return static_cast<LRESULT>(nativeKey.HandleCharMessage(aMsg,
1.5629 + aEventDispatched));
1.5630 +}
1.5631 +
1.5632 +LRESULT nsWindow::ProcessKeyUpMessage(const MSG &aMsg, bool *aEventDispatched)
1.5633 +{
1.5634 + if (IMEHandler::IsComposingOn(this)) {
1.5635 + return 0;
1.5636 + }
1.5637 +
1.5638 + ModifierKeyState modKeyState;
1.5639 + NativeKey nativeKey(this, aMsg, modKeyState);
1.5640 + return static_cast<LRESULT>(nativeKey.HandleKeyUpMessage(aEventDispatched));
1.5641 +}
1.5642 +
1.5643 +LRESULT nsWindow::ProcessKeyDownMessage(const MSG &aMsg,
1.5644 + bool *aEventDispatched)
1.5645 +{
1.5646 + // If this method doesn't call NativeKey::HandleKeyDownMessage(), this method
1.5647 + // must clean up the redirected message information itself. For more
1.5648 + // information, see above comment of
1.5649 + // RedirectedKeyDownMessageManager::AutoFlusher class definition in
1.5650 + // KeyboardLayout.h.
1.5651 + RedirectedKeyDownMessageManager::AutoFlusher redirectedMsgFlusher(this, aMsg);
1.5652 +
1.5653 + ModifierKeyState modKeyState;
1.5654 +
1.5655 + LRESULT result = 0;
1.5656 + if (!IMEHandler::IsComposingOn(this)) {
1.5657 + NativeKey nativeKey(this, aMsg, modKeyState);
1.5658 + result =
1.5659 + static_cast<LRESULT>(nativeKey.HandleKeyDownMessage(aEventDispatched));
1.5660 + // HandleKeyDownMessage cleaned up the redirected message information
1.5661 + // itself, so, we should do nothing.
1.5662 + redirectedMsgFlusher.Cancel();
1.5663 + }
1.5664 +
1.5665 + if (aMsg.wParam == VK_MENU ||
1.5666 + (aMsg.wParam == VK_F10 && !modKeyState.IsShift())) {
1.5667 + // We need to let Windows handle this keypress,
1.5668 + // by returning false, if there's a native menu
1.5669 + // bar somewhere in our containing window hierarchy.
1.5670 + // Otherwise we handle the keypress and don't pass
1.5671 + // it on to Windows, by returning true.
1.5672 + bool hasNativeMenu = false;
1.5673 + HWND hWnd = mWnd;
1.5674 + while (hWnd) {
1.5675 + if (::GetMenu(hWnd)) {
1.5676 + hasNativeMenu = true;
1.5677 + break;
1.5678 + }
1.5679 + hWnd = ::GetParent(hWnd);
1.5680 + }
1.5681 + result = !hasNativeMenu;
1.5682 + }
1.5683 +
1.5684 + return result;
1.5685 +}
1.5686 +
1.5687 +nsresult
1.5688 +nsWindow::SynthesizeNativeKeyEvent(int32_t aNativeKeyboardLayout,
1.5689 + int32_t aNativeKeyCode,
1.5690 + uint32_t aModifierFlags,
1.5691 + const nsAString& aCharacters,
1.5692 + const nsAString& aUnmodifiedCharacters)
1.5693 +{
1.5694 + KeyboardLayout* keyboardLayout = KeyboardLayout::GetInstance();
1.5695 + return keyboardLayout->SynthesizeNativeKeyEvent(
1.5696 + this, aNativeKeyboardLayout, aNativeKeyCode, aModifierFlags,
1.5697 + aCharacters, aUnmodifiedCharacters);
1.5698 +}
1.5699 +
1.5700 +nsresult
1.5701 +nsWindow::SynthesizeNativeMouseEvent(nsIntPoint aPoint,
1.5702 + uint32_t aNativeMessage,
1.5703 + uint32_t aModifierFlags)
1.5704 +{
1.5705 + ::SetCursorPos(aPoint.x, aPoint.y);
1.5706 +
1.5707 + INPUT input;
1.5708 + memset(&input, 0, sizeof(input));
1.5709 +
1.5710 + input.type = INPUT_MOUSE;
1.5711 + input.mi.dwFlags = aNativeMessage;
1.5712 + ::SendInput(1, &input, sizeof(INPUT));
1.5713 +
1.5714 + return NS_OK;
1.5715 +}
1.5716 +
1.5717 +nsresult
1.5718 +nsWindow::SynthesizeNativeMouseScrollEvent(nsIntPoint aPoint,
1.5719 + uint32_t aNativeMessage,
1.5720 + double aDeltaX,
1.5721 + double aDeltaY,
1.5722 + double aDeltaZ,
1.5723 + uint32_t aModifierFlags,
1.5724 + uint32_t aAdditionalFlags)
1.5725 +{
1.5726 + return MouseScrollHandler::SynthesizeNativeMouseScrollEvent(
1.5727 + this, aPoint, aNativeMessage,
1.5728 + (aNativeMessage == WM_MOUSEWHEEL || aNativeMessage == WM_VSCROLL) ?
1.5729 + static_cast<int32_t>(aDeltaY) : static_cast<int32_t>(aDeltaX),
1.5730 + aModifierFlags, aAdditionalFlags);
1.5731 +}
1.5732 +
1.5733 +/**************************************************************
1.5734 + *
1.5735 + * SECTION: OnXXX message handlers
1.5736 + *
1.5737 + * For message handlers that need to be broken out or
1.5738 + * implemented in specific platform code.
1.5739 + *
1.5740 + **************************************************************/
1.5741 +
1.5742 +void nsWindow::OnWindowPosChanged(WINDOWPOS* wp)
1.5743 +{
1.5744 + if (wp == nullptr)
1.5745 + return;
1.5746 +
1.5747 +#ifdef WINSTATE_DEBUG_OUTPUT
1.5748 + if (mWnd == WinUtils::GetTopLevelHWND(mWnd)) {
1.5749 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** OnWindowPosChanged: [ top] "));
1.5750 + } else {
1.5751 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** OnWindowPosChanged: [child] "));
1.5752 + }
1.5753 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("WINDOWPOS flags:"));
1.5754 + if (wp->flags & SWP_FRAMECHANGED) {
1.5755 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_FRAMECHANGED "));
1.5756 + }
1.5757 + if (wp->flags & SWP_SHOWWINDOW) {
1.5758 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_SHOWWINDOW "));
1.5759 + }
1.5760 + if (wp->flags & SWP_NOSIZE) {
1.5761 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_NOSIZE "));
1.5762 + }
1.5763 + if (wp->flags & SWP_HIDEWINDOW) {
1.5764 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_HIDEWINDOW "));
1.5765 + }
1.5766 + if (wp->flags & SWP_NOZORDER) {
1.5767 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_NOZORDER "));
1.5768 + }
1.5769 + if (wp->flags & SWP_NOACTIVATE) {
1.5770 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_NOACTIVATE "));
1.5771 + }
1.5772 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("\n"));
1.5773 +#endif
1.5774 +
1.5775 + // Handle window size mode changes
1.5776 + if (wp->flags & SWP_FRAMECHANGED && mSizeMode != nsSizeMode_Fullscreen) {
1.5777 +
1.5778 + // Bug 566135 - Windows theme code calls show window on SW_SHOWMINIMIZED
1.5779 + // windows when fullscreen games disable desktop composition. If we're
1.5780 + // minimized and not being activated, ignore the event and let windows
1.5781 + // handle it.
1.5782 + if (mSizeMode == nsSizeMode_Minimized && (wp->flags & SWP_NOACTIVATE))
1.5783 + return;
1.5784 +
1.5785 + WINDOWPLACEMENT pl;
1.5786 + pl.length = sizeof(pl);
1.5787 + ::GetWindowPlacement(mWnd, &pl);
1.5788 +
1.5789 + // Windows has just changed the size mode of this window. The call to
1.5790 + // SizeModeChanged will trigger a call into SetSizeMode where we will
1.5791 + // set the min/max window state again or for nsSizeMode_Normal, call
1.5792 + // SetWindow with a parameter of SW_RESTORE. There's no need however as
1.5793 + // this window's mode has already changed. Updating mSizeMode here
1.5794 + // insures the SetSizeMode call is a no-op. Addresses a bug on Win7 related
1.5795 + // to window docking. (bug 489258)
1.5796 + if (pl.showCmd == SW_SHOWMAXIMIZED)
1.5797 + mSizeMode = (mFullscreenMode ? nsSizeMode_Fullscreen : nsSizeMode_Maximized);
1.5798 + else if (pl.showCmd == SW_SHOWMINIMIZED)
1.5799 + mSizeMode = nsSizeMode_Minimized;
1.5800 + else if (mFullscreenMode)
1.5801 + mSizeMode = nsSizeMode_Fullscreen;
1.5802 + else
1.5803 + mSizeMode = nsSizeMode_Normal;
1.5804 +
1.5805 + // If !sTrimOnMinimize, we minimize windows using SW_SHOWMINIMIZED (See
1.5806 + // SetSizeMode for internal calls, and WM_SYSCOMMAND for external). This
1.5807 + // prevents the working set from being trimmed but keeps the window active.
1.5808 + // After the window is minimized, we need to do some touch up work on the
1.5809 + // active window. (bugs 76831 & 499816)
1.5810 + if (!sTrimOnMinimize && nsSizeMode_Minimized == mSizeMode)
1.5811 + ActivateOtherWindowHelper(mWnd);
1.5812 +
1.5813 +#ifdef WINSTATE_DEBUG_OUTPUT
1.5814 + switch (mSizeMode) {
1.5815 + case nsSizeMode_Normal:
1.5816 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.5817 + ("*** mSizeMode: nsSizeMode_Normal\n"));
1.5818 + break;
1.5819 + case nsSizeMode_Minimized:
1.5820 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.5821 + ("*** mSizeMode: nsSizeMode_Minimized\n"));
1.5822 + break;
1.5823 + case nsSizeMode_Maximized:
1.5824 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.5825 + ("*** mSizeMode: nsSizeMode_Maximized\n"));
1.5826 + break;
1.5827 + default:
1.5828 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** mSizeMode: ??????\n"));
1.5829 + break;
1.5830 + };
1.5831 +#endif
1.5832 +
1.5833 + if (mWidgetListener)
1.5834 + mWidgetListener->SizeModeChanged(mSizeMode);
1.5835 +
1.5836 + // If window was restored, window activation was bypassed during the
1.5837 + // SetSizeMode call originating from OnWindowPosChanging to avoid saving
1.5838 + // pre-restore attributes. Force activation now to get correct attributes.
1.5839 + if (mLastSizeMode != nsSizeMode_Normal && mSizeMode == nsSizeMode_Normal)
1.5840 + DispatchFocusToTopLevelWindow(true);
1.5841 +
1.5842 + // Skip window size change events below on minimization.
1.5843 + if (mSizeMode == nsSizeMode_Minimized)
1.5844 + return;
1.5845 + }
1.5846 +
1.5847 + // Handle window position changes
1.5848 + if (!(wp->flags & SWP_NOMOVE)) {
1.5849 + mBounds.x = wp->x;
1.5850 + mBounds.y = wp->y;
1.5851 +
1.5852 + NotifyWindowMoved(wp->x, wp->y);
1.5853 + }
1.5854 +
1.5855 + // Handle window size changes
1.5856 + if (!(wp->flags & SWP_NOSIZE)) {
1.5857 + RECT r;
1.5858 + int32_t newWidth, newHeight;
1.5859 +
1.5860 + ::GetWindowRect(mWnd, &r);
1.5861 +
1.5862 + newWidth = r.right - r.left;
1.5863 + newHeight = r.bottom - r.top;
1.5864 + nsIntRect rect(wp->x, wp->y, newWidth, newHeight);
1.5865 +
1.5866 +#ifdef MOZ_XUL
1.5867 + if (eTransparencyTransparent == mTransparencyMode)
1.5868 + ResizeTranslucentWindow(newWidth, newHeight);
1.5869 +#endif
1.5870 +
1.5871 + if (newWidth > mLastSize.width)
1.5872 + {
1.5873 + RECT drect;
1.5874 +
1.5875 + // getting wider
1.5876 + drect.left = wp->x + mLastSize.width;
1.5877 + drect.top = wp->y;
1.5878 + drect.right = drect.left + (newWidth - mLastSize.width);
1.5879 + drect.bottom = drect.top + newHeight;
1.5880 +
1.5881 + ::RedrawWindow(mWnd, &drect, nullptr,
1.5882 + RDW_INVALIDATE |
1.5883 + RDW_NOERASE |
1.5884 + RDW_NOINTERNALPAINT |
1.5885 + RDW_ERASENOW |
1.5886 + RDW_ALLCHILDREN);
1.5887 + }
1.5888 + if (newHeight > mLastSize.height)
1.5889 + {
1.5890 + RECT drect;
1.5891 +
1.5892 + // getting taller
1.5893 + drect.left = wp->x;
1.5894 + drect.top = wp->y + mLastSize.height;
1.5895 + drect.right = drect.left + newWidth;
1.5896 + drect.bottom = drect.top + (newHeight - mLastSize.height);
1.5897 +
1.5898 + ::RedrawWindow(mWnd, &drect, nullptr,
1.5899 + RDW_INVALIDATE |
1.5900 + RDW_NOERASE |
1.5901 + RDW_NOINTERNALPAINT |
1.5902 + RDW_ERASENOW |
1.5903 + RDW_ALLCHILDREN);
1.5904 + }
1.5905 +
1.5906 + mBounds.width = newWidth;
1.5907 + mBounds.height = newHeight;
1.5908 + mLastSize.width = newWidth;
1.5909 + mLastSize.height = newHeight;
1.5910 +
1.5911 +#ifdef WINSTATE_DEBUG_OUTPUT
1.5912 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.5913 + ("*** Resize window: %d x %d x %d x %d\n", wp->x, wp->y,
1.5914 + newWidth, newHeight));
1.5915 +#endif
1.5916 +
1.5917 + // If a maximized window is resized, recalculate the non-client margins.
1.5918 + if (mSizeMode == nsSizeMode_Maximized) {
1.5919 + if (UpdateNonClientMargins(nsSizeMode_Maximized, true)) {
1.5920 + // gecko resize event already sent by UpdateNonClientMargins.
1.5921 + return;
1.5922 + }
1.5923 + }
1.5924 +
1.5925 + // Recalculate the width and height based on the client area for gecko events.
1.5926 + if (::GetClientRect(mWnd, &r)) {
1.5927 + rect.width = r.right - r.left;
1.5928 + rect.height = r.bottom - r.top;
1.5929 + }
1.5930 +
1.5931 + // Send a gecko resize event
1.5932 + OnResize(rect);
1.5933 + }
1.5934 +}
1.5935 +
1.5936 +// static
1.5937 +void nsWindow::ActivateOtherWindowHelper(HWND aWnd)
1.5938 +{
1.5939 + // Find the next window that is enabled, visible, and not minimized.
1.5940 + HWND hwndBelow = ::GetNextWindow(aWnd, GW_HWNDNEXT);
1.5941 + while (hwndBelow && (!::IsWindowEnabled(hwndBelow) || !::IsWindowVisible(hwndBelow) ||
1.5942 + ::IsIconic(hwndBelow))) {
1.5943 + hwndBelow = ::GetNextWindow(hwndBelow, GW_HWNDNEXT);
1.5944 + }
1.5945 +
1.5946 + // Push ourselves to the bottom of the stack, then activate the
1.5947 + // next window.
1.5948 + ::SetWindowPos(aWnd, HWND_BOTTOM, 0, 0, 0, 0,
1.5949 + SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
1.5950 + if (hwndBelow)
1.5951 + ::SetForegroundWindow(hwndBelow);
1.5952 +
1.5953 + // Play the minimize sound while we're here, since that is also
1.5954 + // forgotten when we use SW_SHOWMINIMIZED.
1.5955 + nsCOMPtr<nsISound> sound(do_CreateInstance("@mozilla.org/sound;1"));
1.5956 + if (sound) {
1.5957 + sound->PlaySystemSound(NS_LITERAL_STRING("Minimize"));
1.5958 + }
1.5959 +}
1.5960 +
1.5961 +void nsWindow::OnWindowPosChanging(LPWINDOWPOS& info)
1.5962 +{
1.5963 + // Update non-client margins if the frame size is changing, and let the
1.5964 + // browser know we are changing size modes, so alternative css can kick in.
1.5965 + // If we're going into fullscreen mode, ignore this, since it'll reset
1.5966 + // margins to normal mode.
1.5967 + if ((info->flags & SWP_FRAMECHANGED && !(info->flags & SWP_NOSIZE)) &&
1.5968 + mSizeMode != nsSizeMode_Fullscreen) {
1.5969 + WINDOWPLACEMENT pl;
1.5970 + pl.length = sizeof(pl);
1.5971 + ::GetWindowPlacement(mWnd, &pl);
1.5972 + nsSizeMode sizeMode;
1.5973 + if (pl.showCmd == SW_SHOWMAXIMIZED)
1.5974 + sizeMode = (mFullscreenMode ? nsSizeMode_Fullscreen : nsSizeMode_Maximized);
1.5975 + else if (pl.showCmd == SW_SHOWMINIMIZED)
1.5976 + sizeMode = nsSizeMode_Minimized;
1.5977 + else if (mFullscreenMode)
1.5978 + sizeMode = nsSizeMode_Fullscreen;
1.5979 + else
1.5980 + sizeMode = nsSizeMode_Normal;
1.5981 +
1.5982 + if (mWidgetListener)
1.5983 + mWidgetListener->SizeModeChanged(sizeMode);
1.5984 +
1.5985 + UpdateNonClientMargins(sizeMode, false);
1.5986 + }
1.5987 +
1.5988 + // enforce local z-order rules
1.5989 + if (!(info->flags & SWP_NOZORDER)) {
1.5990 + HWND hwndAfter = info->hwndInsertAfter;
1.5991 +
1.5992 + nsWindow *aboveWindow = 0;
1.5993 + nsWindowZ placement;
1.5994 +
1.5995 + if (hwndAfter == HWND_BOTTOM)
1.5996 + placement = nsWindowZBottom;
1.5997 + else if (hwndAfter == HWND_TOP || hwndAfter == HWND_TOPMOST || hwndAfter == HWND_NOTOPMOST)
1.5998 + placement = nsWindowZTop;
1.5999 + else {
1.6000 + placement = nsWindowZRelative;
1.6001 + aboveWindow = WinUtils::GetNSWindowPtr(hwndAfter);
1.6002 + }
1.6003 +
1.6004 + if (mWidgetListener) {
1.6005 + nsCOMPtr<nsIWidget> actualBelow = nullptr;
1.6006 + if (mWidgetListener->ZLevelChanged(false, &placement,
1.6007 + aboveWindow, getter_AddRefs(actualBelow))) {
1.6008 + if (placement == nsWindowZBottom)
1.6009 + info->hwndInsertAfter = HWND_BOTTOM;
1.6010 + else if (placement == nsWindowZTop)
1.6011 + info->hwndInsertAfter = HWND_TOP;
1.6012 + else {
1.6013 + info->hwndInsertAfter = (HWND)actualBelow->GetNativeData(NS_NATIVE_WINDOW);
1.6014 + }
1.6015 + }
1.6016 + }
1.6017 + }
1.6018 + // prevent rude external programs from making hidden window visible
1.6019 + if (mWindowType == eWindowType_invisible)
1.6020 + info->flags &= ~SWP_SHOWWINDOW;
1.6021 +}
1.6022 +
1.6023 +void nsWindow::UserActivity()
1.6024 +{
1.6025 + // Check if we have the idle service, if not we try to get it.
1.6026 + if (!mIdleService) {
1.6027 + mIdleService = do_GetService("@mozilla.org/widget/idleservice;1");
1.6028 + }
1.6029 +
1.6030 + // Check that we now have the idle service.
1.6031 + if (mIdleService) {
1.6032 + mIdleService->ResetIdleTimeOut(0);
1.6033 + }
1.6034 +}
1.6035 +
1.6036 +bool nsWindow::OnTouch(WPARAM wParam, LPARAM lParam)
1.6037 +{
1.6038 + uint32_t cInputs = LOWORD(wParam);
1.6039 + PTOUCHINPUT pInputs = new TOUCHINPUT[cInputs];
1.6040 +
1.6041 + if (mGesture.GetTouchInputInfo((HTOUCHINPUT)lParam, cInputs, pInputs)) {
1.6042 + WidgetTouchEvent* touchEventToSend = nullptr;
1.6043 + WidgetTouchEvent* touchEndEventToSend = nullptr;
1.6044 + nsEventStatus status;
1.6045 +
1.6046 + // Walk across the touch point array processing each contact point
1.6047 + for (uint32_t i = 0; i < cInputs; i++) {
1.6048 + uint32_t msg;
1.6049 +
1.6050 + if (pInputs[i].dwFlags & (TOUCHEVENTF_DOWN | TOUCHEVENTF_MOVE)) {
1.6051 + // Create a standard touch event to send
1.6052 + if (!touchEventToSend) {
1.6053 + touchEventToSend = new WidgetTouchEvent(true, NS_TOUCH_MOVE, this);
1.6054 + touchEventToSend->time = ::GetMessageTime();
1.6055 + ModifierKeyState modifierKeyState;
1.6056 + modifierKeyState.InitInputEvent(*touchEventToSend);
1.6057 + }
1.6058 +
1.6059 + // Pres shell expects this event to be a NS_TOUCH_START if new contact
1.6060 + // points have been added since the last event sent.
1.6061 + if (pInputs[i].dwFlags & TOUCHEVENTF_DOWN) {
1.6062 + touchEventToSend->message = msg = NS_TOUCH_START;
1.6063 + } else {
1.6064 + msg = NS_TOUCH_MOVE;
1.6065 + }
1.6066 + } else if (pInputs[i].dwFlags & TOUCHEVENTF_UP) {
1.6067 + // Pres shell expects removed contacts points to be delivered in a
1.6068 + // separate NS_TOUCH_END event containing only the contact points
1.6069 + // that were removed.
1.6070 + if (!touchEndEventToSend) {
1.6071 + touchEndEventToSend = new WidgetTouchEvent(true, NS_TOUCH_END, this);
1.6072 + touchEndEventToSend->time = ::GetMessageTime();
1.6073 + ModifierKeyState modifierKeyState;
1.6074 + modifierKeyState.InitInputEvent(*touchEndEventToSend);
1.6075 + }
1.6076 + msg = NS_TOUCH_END;
1.6077 + } else {
1.6078 + // Filter out spurious Windows events we don't understand, like palm
1.6079 + // contact.
1.6080 + continue;
1.6081 + }
1.6082 +
1.6083 + // Setup the touch point we'll append to the touch event array
1.6084 + nsPointWin touchPoint;
1.6085 + touchPoint.x = TOUCH_COORD_TO_PIXEL(pInputs[i].x);
1.6086 + touchPoint.y = TOUCH_COORD_TO_PIXEL(pInputs[i].y);
1.6087 + touchPoint.ScreenToClient(mWnd);
1.6088 + nsRefPtr<Touch> touch =
1.6089 + new Touch(pInputs[i].dwID,
1.6090 + touchPoint,
1.6091 + /* radius, if known */
1.6092 + pInputs[i].dwFlags & TOUCHINPUTMASKF_CONTACTAREA ?
1.6093 + nsIntPoint(
1.6094 + TOUCH_COORD_TO_PIXEL(pInputs[i].cxContact) / 2,
1.6095 + TOUCH_COORD_TO_PIXEL(pInputs[i].cyContact) / 2) :
1.6096 + nsIntPoint(1,1),
1.6097 + /* rotation angle and force */
1.6098 + 0.0f, 0.0f);
1.6099 +
1.6100 + // Append to the appropriate event
1.6101 + if (msg == NS_TOUCH_START || msg == NS_TOUCH_MOVE) {
1.6102 + touchEventToSend->touches.AppendElement(touch);
1.6103 + } else {
1.6104 + touchEndEventToSend->touches.AppendElement(touch);
1.6105 + }
1.6106 + }
1.6107 +
1.6108 + // Dispatch touch start and move event if we have one.
1.6109 + if (touchEventToSend) {
1.6110 + DispatchEvent(touchEventToSend, status);
1.6111 + delete touchEventToSend;
1.6112 + }
1.6113 +
1.6114 + // Dispatch touch end event if we have one.
1.6115 + if (touchEndEventToSend) {
1.6116 + DispatchEvent(touchEndEventToSend, status);
1.6117 + delete touchEndEventToSend;
1.6118 + }
1.6119 + }
1.6120 +
1.6121 + delete [] pInputs;
1.6122 + mGesture.CloseTouchInputHandle((HTOUCHINPUT)lParam);
1.6123 + return true;
1.6124 +}
1.6125 +
1.6126 +static int32_t RoundDown(double aDouble)
1.6127 +{
1.6128 + return aDouble > 0 ? static_cast<int32_t>(floor(aDouble)) :
1.6129 + static_cast<int32_t>(ceil(aDouble));
1.6130 +}
1.6131 +
1.6132 +// Gesture event processing. Handles WM_GESTURE events.
1.6133 +bool nsWindow::OnGesture(WPARAM wParam, LPARAM lParam)
1.6134 +{
1.6135 + if (gIsPointerEventsEnabled) {
1.6136 + return false;
1.6137 + }
1.6138 +
1.6139 + // Treatment for pan events which translate into scroll events:
1.6140 + if (mGesture.IsPanEvent(lParam)) {
1.6141 + if ( !mGesture.ProcessPanMessage(mWnd, wParam, lParam) )
1.6142 + return false; // ignore
1.6143 +
1.6144 + nsEventStatus status;
1.6145 +
1.6146 + WidgetWheelEvent wheelEvent(true, NS_WHEEL_WHEEL, this);
1.6147 +
1.6148 + ModifierKeyState modifierKeyState;
1.6149 + modifierKeyState.InitInputEvent(wheelEvent);
1.6150 +
1.6151 + wheelEvent.button = 0;
1.6152 + wheelEvent.time = ::GetMessageTime();
1.6153 + wheelEvent.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_TOUCH;
1.6154 +
1.6155 + bool endFeedback = true;
1.6156 +
1.6157 + if (mGesture.PanDeltaToPixelScroll(wheelEvent)) {
1.6158 + DispatchEvent(&wheelEvent, status);
1.6159 + }
1.6160 +
1.6161 + if (mDisplayPanFeedback) {
1.6162 + mGesture.UpdatePanFeedbackX(mWnd,
1.6163 + DeprecatedAbs(RoundDown(wheelEvent.overflowDeltaX)),
1.6164 + endFeedback);
1.6165 + mGesture.UpdatePanFeedbackY(mWnd,
1.6166 + DeprecatedAbs(RoundDown(wheelEvent.overflowDeltaY)),
1.6167 + endFeedback);
1.6168 + mGesture.PanFeedbackFinalize(mWnd, endFeedback);
1.6169 + }
1.6170 +
1.6171 + mGesture.CloseGestureInfoHandle((HGESTUREINFO)lParam);
1.6172 +
1.6173 + return true;
1.6174 + }
1.6175 +
1.6176 + // Other gestures translate into simple gesture events:
1.6177 + WidgetSimpleGestureEvent event(true, 0, this);
1.6178 + if ( !mGesture.ProcessGestureMessage(mWnd, wParam, lParam, event) ) {
1.6179 + return false; // fall through to DefWndProc
1.6180 + }
1.6181 +
1.6182 + // Polish up and send off the new event
1.6183 + ModifierKeyState modifierKeyState;
1.6184 + modifierKeyState.InitInputEvent(event);
1.6185 + event.button = 0;
1.6186 + event.time = ::GetMessageTime();
1.6187 + event.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_TOUCH;
1.6188 +
1.6189 + nsEventStatus status;
1.6190 + DispatchEvent(&event, status);
1.6191 + if (status == nsEventStatus_eIgnore) {
1.6192 + return false; // Ignored, fall through
1.6193 + }
1.6194 +
1.6195 + // Only close this if we process and return true.
1.6196 + mGesture.CloseGestureInfoHandle((HGESTUREINFO)lParam);
1.6197 +
1.6198 + return true; // Handled
1.6199 +}
1.6200 +
1.6201 +static BOOL WINAPI EnumFirstChild(HWND hwnd, LPARAM lParam)
1.6202 +{
1.6203 + *((HWND*)lParam) = hwnd;
1.6204 + return FALSE;
1.6205 +}
1.6206 +
1.6207 +static void InvalidatePluginAsWorkaround(nsWindow *aWindow, const nsIntRect &aRect)
1.6208 +{
1.6209 + aWindow->Invalidate(aRect);
1.6210 +
1.6211 + // XXX - Even more evil workaround!! See bug 762948, flash's bottom
1.6212 + // level sandboxed window doesn't seem to get our invalidate. We send
1.6213 + // an invalidate to it manually. This is totally specialized for this
1.6214 + // bug, for other child window structures this will just be a more or
1.6215 + // less bogus invalidate but since that should not have any bad
1.6216 + // side-effects this will have to do for now.
1.6217 + HWND current = (HWND)aWindow->GetNativeData(NS_NATIVE_WINDOW);
1.6218 +
1.6219 + RECT windowRect;
1.6220 + RECT parentRect;
1.6221 +
1.6222 + ::GetWindowRect(current, &parentRect);
1.6223 +
1.6224 + HWND next = current;
1.6225 +
1.6226 + do {
1.6227 + current = next;
1.6228 +
1.6229 + ::EnumChildWindows(current, &EnumFirstChild, (LPARAM)&next);
1.6230 +
1.6231 + ::GetWindowRect(next, &windowRect);
1.6232 + // This is relative to the screen, adjust it to be relative to the
1.6233 + // window we're reconfiguring.
1.6234 + windowRect.left -= parentRect.left;
1.6235 + windowRect.top -= parentRect.top;
1.6236 + } while (next != current && windowRect.top == 0 && windowRect.left == 0);
1.6237 +
1.6238 + if (windowRect.top == 0 && windowRect.left == 0) {
1.6239 + RECT rect;
1.6240 + rect.left = aRect.x;
1.6241 + rect.top = aRect.y;
1.6242 + rect.right = aRect.XMost();
1.6243 + rect.bottom = aRect.YMost();
1.6244 +
1.6245 + ::InvalidateRect(next, &rect, FALSE);
1.6246 + }
1.6247 +}
1.6248 +
1.6249 +nsresult
1.6250 +nsWindow::ConfigureChildren(const nsTArray<Configuration>& aConfigurations)
1.6251 +{
1.6252 + // XXXroc we could use BeginDeferWindowPos/DeferWindowPos/EndDeferWindowPos
1.6253 + // here, if that helps in some situations. So far I haven't seen a
1.6254 + // need.
1.6255 + for (uint32_t i = 0; i < aConfigurations.Length(); ++i) {
1.6256 + const Configuration& configuration = aConfigurations[i];
1.6257 + nsWindow* w = static_cast<nsWindow*>(configuration.mChild);
1.6258 + NS_ASSERTION(w->GetParent() == this,
1.6259 + "Configured widget is not a child");
1.6260 + nsresult rv = w->SetWindowClipRegion(configuration.mClipRegion, true);
1.6261 + NS_ENSURE_SUCCESS(rv, rv);
1.6262 + nsIntRect bounds;
1.6263 + w->GetBounds(bounds);
1.6264 + if (bounds.Size() != configuration.mBounds.Size()) {
1.6265 + w->Resize(configuration.mBounds.x, configuration.mBounds.y,
1.6266 + configuration.mBounds.width, configuration.mBounds.height,
1.6267 + true);
1.6268 + } else if (bounds.TopLeft() != configuration.mBounds.TopLeft()) {
1.6269 + w->Move(configuration.mBounds.x, configuration.mBounds.y);
1.6270 +
1.6271 +
1.6272 + if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() ==
1.6273 + gfxWindowsPlatform::RENDER_DIRECT2D ||
1.6274 + GetLayerManager()->GetBackendType() != LayersBackend::LAYERS_BASIC) {
1.6275 + // XXX - Workaround for Bug 587508. This will invalidate the part of the
1.6276 + // plugin window that might be touched by moving content somehow. The
1.6277 + // underlying problem should be found and fixed!
1.6278 + nsIntRegion r;
1.6279 + r.Sub(bounds, configuration.mBounds);
1.6280 + r.MoveBy(-bounds.x,
1.6281 + -bounds.y);
1.6282 + nsIntRect toInvalidate = r.GetBounds();
1.6283 +
1.6284 + InvalidatePluginAsWorkaround(w, toInvalidate);
1.6285 + }
1.6286 + }
1.6287 + rv = w->SetWindowClipRegion(configuration.mClipRegion, false);
1.6288 + NS_ENSURE_SUCCESS(rv, rv);
1.6289 + }
1.6290 + return NS_OK;
1.6291 +}
1.6292 +
1.6293 +static HRGN
1.6294 +CreateHRGNFromArray(const nsTArray<nsIntRect>& aRects)
1.6295 +{
1.6296 + int32_t size = sizeof(RGNDATAHEADER) + sizeof(RECT)*aRects.Length();
1.6297 + nsAutoTArray<uint8_t,100> buf;
1.6298 + buf.SetLength(size);
1.6299 + RGNDATA* data = reinterpret_cast<RGNDATA*>(buf.Elements());
1.6300 + RECT* rects = reinterpret_cast<RECT*>(data->Buffer);
1.6301 + data->rdh.dwSize = sizeof(data->rdh);
1.6302 + data->rdh.iType = RDH_RECTANGLES;
1.6303 + data->rdh.nCount = aRects.Length();
1.6304 + nsIntRect bounds;
1.6305 + for (uint32_t i = 0; i < aRects.Length(); ++i) {
1.6306 + const nsIntRect& r = aRects[i];
1.6307 + bounds.UnionRect(bounds, r);
1.6308 + ::SetRect(&rects[i], r.x, r.y, r.XMost(), r.YMost());
1.6309 + }
1.6310 + ::SetRect(&data->rdh.rcBound, bounds.x, bounds.y, bounds.XMost(), bounds.YMost());
1.6311 + return ::ExtCreateRegion(nullptr, buf.Length(), data);
1.6312 +}
1.6313 +
1.6314 +static void
1.6315 +ArrayFromRegion(const nsIntRegion& aRegion, nsTArray<nsIntRect>& aRects)
1.6316 +{
1.6317 + const nsIntRect* r;
1.6318 + for (nsIntRegionRectIterator iter(aRegion); (r = iter.Next());) {
1.6319 + aRects.AppendElement(*r);
1.6320 + }
1.6321 +}
1.6322 +
1.6323 +nsresult
1.6324 +nsWindow::SetWindowClipRegion(const nsTArray<nsIntRect>& aRects,
1.6325 + bool aIntersectWithExisting)
1.6326 +{
1.6327 + if (!aIntersectWithExisting) {
1.6328 + if (!StoreWindowClipRegion(aRects))
1.6329 + return NS_OK;
1.6330 + } else {
1.6331 + // In this case still early return if nothing changed.
1.6332 + if (mClipRects && mClipRectCount == aRects.Length() &&
1.6333 + memcmp(mClipRects,
1.6334 + aRects.Elements(),
1.6335 + sizeof(nsIntRect)*mClipRectCount) == 0) {
1.6336 + return NS_OK;
1.6337 + }
1.6338 +
1.6339 + // get current rects
1.6340 + nsTArray<nsIntRect> currentRects;
1.6341 + GetWindowClipRegion(¤tRects);
1.6342 + // create region from them
1.6343 + nsIntRegion currentRegion = RegionFromArray(currentRects);
1.6344 + // create region from new rects
1.6345 + nsIntRegion newRegion = RegionFromArray(aRects);
1.6346 + // intersect regions
1.6347 + nsIntRegion intersection;
1.6348 + intersection.And(currentRegion, newRegion);
1.6349 + // create int rect array from intersection
1.6350 + nsTArray<nsIntRect> rects;
1.6351 + ArrayFromRegion(intersection, rects);
1.6352 + // store
1.6353 + if (!StoreWindowClipRegion(rects))
1.6354 + return NS_OK;
1.6355 + }
1.6356 +
1.6357 + HRGN dest = CreateHRGNFromArray(aRects);
1.6358 + if (!dest)
1.6359 + return NS_ERROR_OUT_OF_MEMORY;
1.6360 +
1.6361 + if (aIntersectWithExisting) {
1.6362 + HRGN current = ::CreateRectRgn(0, 0, 0, 0);
1.6363 + if (current) {
1.6364 + if (::GetWindowRgn(mWnd, current) != 0 /*ERROR*/) {
1.6365 + ::CombineRgn(dest, dest, current, RGN_AND);
1.6366 + }
1.6367 + ::DeleteObject(current);
1.6368 + }
1.6369 + }
1.6370 +
1.6371 + // If a plugin is not visible, especially if it is in a background tab,
1.6372 + // it should not be able to steal keyboard focus. This code checks whether
1.6373 + // the region that the plugin is being clipped to is NULLREGION. If it is,
1.6374 + // the plugin window gets disabled.
1.6375 + if(mWindowType == eWindowType_plugin) {
1.6376 + if(NULLREGION == ::CombineRgn(dest, dest, dest, RGN_OR)) {
1.6377 + ::ShowWindow(mWnd, SW_HIDE);
1.6378 + ::EnableWindow(mWnd, FALSE);
1.6379 + } else {
1.6380 + ::EnableWindow(mWnd, TRUE);
1.6381 + ::ShowWindow(mWnd, SW_SHOW);
1.6382 + }
1.6383 + }
1.6384 + if (!::SetWindowRgn(mWnd, dest, TRUE)) {
1.6385 + ::DeleteObject(dest);
1.6386 + return NS_ERROR_FAILURE;
1.6387 + }
1.6388 + return NS_OK;
1.6389 +}
1.6390 +
1.6391 +// WM_DESTROY event handler
1.6392 +void nsWindow::OnDestroy()
1.6393 +{
1.6394 + mOnDestroyCalled = true;
1.6395 +
1.6396 + // Make sure we don't get destroyed in the process of tearing down.
1.6397 + nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
1.6398 +
1.6399 + // Dispatch the destroy notification.
1.6400 + if (!mInDtor)
1.6401 + NotifyWindowDestroyed();
1.6402 +
1.6403 + // Prevent the widget from sending additional events.
1.6404 + mWidgetListener = nullptr;
1.6405 + mAttachedWidgetListener = nullptr;
1.6406 +
1.6407 + // Free our subclass and clear |this| stored in the window props. We will no longer
1.6408 + // receive events from Windows after this point.
1.6409 + SubclassWindow(FALSE);
1.6410 +
1.6411 + // Once mWidgetListener is cleared and the subclass is reset, sCurrentWindow can be
1.6412 + // cleared. (It's used in tracking windows for mouse events.)
1.6413 + if (sCurrentWindow == this)
1.6414 + sCurrentWindow = nullptr;
1.6415 +
1.6416 + // Disconnects us from our parent, will call our GetParent().
1.6417 + nsBaseWidget::Destroy();
1.6418 +
1.6419 + // Release references to children, device context, toolkit, and app shell.
1.6420 + nsBaseWidget::OnDestroy();
1.6421 +
1.6422 + // Clear our native parent handle.
1.6423 + // XXX Windows will take care of this in the proper order, and SetParent(nullptr)'s
1.6424 + // remove child on the parent already took place in nsBaseWidget's Destroy call above.
1.6425 + //SetParent(nullptr);
1.6426 + mParent = nullptr;
1.6427 +
1.6428 + // We have to destroy the native drag target before we null out our window pointer.
1.6429 + EnableDragDrop(false);
1.6430 +
1.6431 + // If we're going away and for some reason we're still the rollup widget, rollup and
1.6432 + // turn off capture.
1.6433 + nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
1.6434 + nsCOMPtr<nsIWidget> rollupWidget;
1.6435 + if (rollupListener) {
1.6436 + rollupWidget = rollupListener->GetRollupWidget();
1.6437 + }
1.6438 + if (this == rollupWidget) {
1.6439 + if ( rollupListener )
1.6440 + rollupListener->Rollup(0, nullptr, nullptr);
1.6441 + CaptureRollupEvents(nullptr, false);
1.6442 + }
1.6443 +
1.6444 + IMEHandler::OnDestroyWindow(this);
1.6445 +
1.6446 + // Turn off mouse trails if enabled.
1.6447 + MouseTrailer* mtrailer = nsToolkit::gMouseTrailer;
1.6448 + if (mtrailer) {
1.6449 + if (mtrailer->GetMouseTrailerWindow() == mWnd)
1.6450 + mtrailer->DestroyTimer();
1.6451 +
1.6452 + if (mtrailer->GetCaptureWindow() == mWnd)
1.6453 + mtrailer->SetCaptureWindow(nullptr);
1.6454 + }
1.6455 +
1.6456 + // Free GDI window class objects
1.6457 + if (mBrush) {
1.6458 + VERIFY(::DeleteObject(mBrush));
1.6459 + mBrush = nullptr;
1.6460 + }
1.6461 +
1.6462 +
1.6463 + // Destroy any custom cursor resources.
1.6464 + if (mCursor == -1)
1.6465 + SetCursor(eCursor_standard);
1.6466 +
1.6467 +#ifdef MOZ_XUL
1.6468 + // Reset transparency
1.6469 + if (eTransparencyTransparent == mTransparencyMode)
1.6470 + SetupTranslucentWindowMemoryBitmap(eTransparencyOpaque);
1.6471 +#endif
1.6472 +
1.6473 + // Finalize panning feedback to possibly restore window displacement
1.6474 + mGesture.PanFeedbackFinalize(mWnd, true);
1.6475 +
1.6476 + // Clear the main HWND.
1.6477 + mWnd = nullptr;
1.6478 +}
1.6479 +
1.6480 +// Send a resize message to the listener
1.6481 +bool nsWindow::OnResize(nsIntRect &aWindowRect)
1.6482 +{
1.6483 + bool result = mWidgetListener ?
1.6484 + mWidgetListener->WindowResized(this, aWindowRect.width, aWindowRect.height) : false;
1.6485 +
1.6486 + // If there is an attached view, inform it as well as the normal widget listener.
1.6487 + if (mAttachedWidgetListener) {
1.6488 + return mAttachedWidgetListener->WindowResized(this, aWindowRect.width, aWindowRect.height);
1.6489 + }
1.6490 +
1.6491 + return result;
1.6492 +}
1.6493 +
1.6494 +bool nsWindow::OnHotKey(WPARAM wParam, LPARAM lParam)
1.6495 +{
1.6496 + return true;
1.6497 +}
1.6498 +
1.6499 +// Can be overriden. Controls auto-erase of background.
1.6500 +bool nsWindow::AutoErase(HDC dc)
1.6501 +{
1.6502 + return false;
1.6503 +}
1.6504 +
1.6505 +void
1.6506 +nsWindow::AllowD3D9Callback(nsWindow *aWindow)
1.6507 +{
1.6508 + if (aWindow->mLayerManager && !aWindow->ShouldUseOffMainThreadCompositing()) {
1.6509 + aWindow->mLayerManager->Destroy();
1.6510 + aWindow->mLayerManager = nullptr;
1.6511 + }
1.6512 +}
1.6513 +
1.6514 +void
1.6515 +nsWindow::AllowD3D9WithReinitializeCallback(nsWindow *aWindow)
1.6516 +{
1.6517 + if (aWindow->mLayerManager && !aWindow->ShouldUseOffMainThreadCompositing()) {
1.6518 + aWindow->mLayerManager->Destroy();
1.6519 + aWindow->mLayerManager = nullptr;
1.6520 + (void) aWindow->GetLayerManager();
1.6521 + }
1.6522 +}
1.6523 +
1.6524 +void
1.6525 +nsWindow::StartAllowingD3D9(bool aReinitialize)
1.6526 +{
1.6527 + sAllowD3D9 = true;
1.6528 +
1.6529 + LayerManagerPrefs prefs;
1.6530 + GetLayerManagerPrefs(&prefs);
1.6531 + if (prefs.mDisableAcceleration) {
1.6532 + // The guarantee here is, if there's *any* chance that after we
1.6533 + // throw out our layer managers we'd create at least one new,
1.6534 + // accelerated one, we *will* throw out all the current layer
1.6535 + // managers. We early-return here because currently, if
1.6536 + // |disableAcceleration|, we will always use basic managers and
1.6537 + // it's a waste to recreate them. If we're using OMTC we don't want to
1.6538 + // recreate out layer manager and its compositor either. This is even
1.6539 + // more wasteful.
1.6540 + //
1.6541 + // NB: the above implies that it's eminently possible for us to
1.6542 + // skip this early return but still recreate basic managers.
1.6543 + // That's OK. It's *not* OK to take this early return when we
1.6544 + // *might* have created an accelerated manager.
1.6545 + return;
1.6546 + }
1.6547 +
1.6548 + if (aReinitialize) {
1.6549 + EnumAllWindows(AllowD3D9WithReinitializeCallback);
1.6550 + } else {
1.6551 + EnumAllWindows(AllowD3D9Callback);
1.6552 + }
1.6553 +}
1.6554 +
1.6555 +bool
1.6556 +nsWindow::ShouldUseOffMainThreadCompositing()
1.6557 +{
1.6558 + // We don't currently support using an accelerated layer manager with
1.6559 + // transparent windows so don't even try. I'm also not sure if we even
1.6560 + // want to support this case. See bug 593471
1.6561 + if (mTransparencyMode == eTransparencyTransparent) {
1.6562 + return false;
1.6563 + }
1.6564 +
1.6565 + return nsBaseWidget::ShouldUseOffMainThreadCompositing();
1.6566 +}
1.6567 +
1.6568 +void
1.6569 +nsWindow::GetPreferredCompositorBackends(nsTArray<LayersBackend>& aHints)
1.6570 +{
1.6571 + LayerManagerPrefs prefs;
1.6572 + GetLayerManagerPrefs(&prefs);
1.6573 +
1.6574 + // We don't currently support using an accelerated layer manager with
1.6575 + // transparent windows so don't even try. I'm also not sure if we even
1.6576 + // want to support this case. See bug 593471
1.6577 + if (!(prefs.mDisableAcceleration ||
1.6578 + mTransparencyMode == eTransparencyTransparent)) {
1.6579 + if (prefs.mPreferOpenGL) {
1.6580 + aHints.AppendElement(LayersBackend::LAYERS_OPENGL);
1.6581 + }
1.6582 + if (!prefs.mPreferD3D9) {
1.6583 + aHints.AppendElement(LayersBackend::LAYERS_D3D11);
1.6584 + }
1.6585 + aHints.AppendElement(LayersBackend::LAYERS_D3D9);
1.6586 + }
1.6587 + aHints.AppendElement(LayersBackend::LAYERS_BASIC);
1.6588 +}
1.6589 +
1.6590 +void
1.6591 +nsWindow::WindowUsesOMTC()
1.6592 +{
1.6593 + ULONG_PTR style = ::GetClassLongPtr(mWnd, GCL_STYLE);
1.6594 + if (!style) {
1.6595 + NS_WARNING("Could not get window class style");
1.6596 + return;
1.6597 + }
1.6598 + style |= CS_HREDRAW | CS_VREDRAW;
1.6599 + DebugOnly<ULONG_PTR> result = ::SetClassLongPtr(mWnd, GCL_STYLE, style);
1.6600 + NS_WARN_IF_FALSE(result, "Could not reset window class style");
1.6601 +}
1.6602 +
1.6603 +bool
1.6604 +nsWindow::HasBogusPopupsDropShadowOnMultiMonitor() {
1.6605 + if (sHasBogusPopupsDropShadowOnMultiMonitor == TRI_UNKNOWN) {
1.6606 + // Since any change in the preferences requires a restart, this can be
1.6607 + // done just once.
1.6608 + // Check for Direct2D first.
1.6609 + sHasBogusPopupsDropShadowOnMultiMonitor =
1.6610 + gfxWindowsPlatform::GetPlatform()->GetRenderMode() ==
1.6611 + gfxWindowsPlatform::RENDER_DIRECT2D ? TRI_TRUE : TRI_FALSE;
1.6612 + if (!sHasBogusPopupsDropShadowOnMultiMonitor) {
1.6613 + // Otherwise check if Direct3D 9 may be used.
1.6614 + LayerManagerPrefs prefs;
1.6615 + GetLayerManagerPrefs(&prefs);
1.6616 + if (!prefs.mDisableAcceleration && !prefs.mPreferOpenGL) {
1.6617 + nsCOMPtr<nsIGfxInfo> gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
1.6618 + if (gfxInfo) {
1.6619 + int32_t status;
1.6620 + if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT3D_9_LAYERS, &status))) {
1.6621 + if (status == nsIGfxInfo::FEATURE_NO_INFO || prefs.mForceAcceleration)
1.6622 + {
1.6623 + sHasBogusPopupsDropShadowOnMultiMonitor = TRI_TRUE;
1.6624 + }
1.6625 + }
1.6626 + }
1.6627 + }
1.6628 + }
1.6629 + }
1.6630 + return !!sHasBogusPopupsDropShadowOnMultiMonitor;
1.6631 +}
1.6632 +
1.6633 +void
1.6634 +nsWindow::OnSysColorChanged()
1.6635 +{
1.6636 + if (mWindowType == eWindowType_invisible) {
1.6637 + ::EnumThreadWindows(GetCurrentThreadId(), nsWindow::BroadcastMsg, WM_SYSCOLORCHANGE);
1.6638 + }
1.6639 + else {
1.6640 + // Note: This is sent for child windows as well as top-level windows.
1.6641 + // The Win32 toolkit normally only sends these events to top-level windows.
1.6642 + // But we cycle through all of the childwindows and send it to them as well
1.6643 + // so all presentations get notified properly.
1.6644 + // See nsWindow::GlobalMsgWindowProc.
1.6645 + NotifySysColorChanged();
1.6646 + }
1.6647 +}
1.6648 +
1.6649 +/**************************************************************
1.6650 + **************************************************************
1.6651 + **
1.6652 + ** BLOCK: IME management and accessibility
1.6653 + **
1.6654 + ** Handles managing IME input and accessibility.
1.6655 + **
1.6656 + **************************************************************
1.6657 + **************************************************************/
1.6658 +
1.6659 +NS_IMETHODIMP
1.6660 +nsWindow::NotifyIME(const IMENotification& aIMENotification)
1.6661 +{
1.6662 + return IMEHandler::NotifyIME(this, aIMENotification);
1.6663 +}
1.6664 +
1.6665 +NS_IMETHODIMP_(void)
1.6666 +nsWindow::SetInputContext(const InputContext& aContext,
1.6667 + const InputContextAction& aAction)
1.6668 +{
1.6669 + InputContext newInputContext = aContext;
1.6670 + IMEHandler::SetInputContext(this, newInputContext, aAction);
1.6671 + mInputContext = newInputContext;
1.6672 +}
1.6673 +
1.6674 +NS_IMETHODIMP_(InputContext)
1.6675 +nsWindow::GetInputContext()
1.6676 +{
1.6677 + mInputContext.mIMEState.mOpen = IMEState::CLOSED;
1.6678 + if (WinUtils::IsIMEEnabled(mInputContext) && IMEHandler::GetOpenState(this)) {
1.6679 + mInputContext.mIMEState.mOpen = IMEState::OPEN;
1.6680 + } else {
1.6681 + mInputContext.mIMEState.mOpen = IMEState::CLOSED;
1.6682 + }
1.6683 + return mInputContext;
1.6684 +}
1.6685 +
1.6686 +NS_IMETHODIMP
1.6687 +nsWindow::GetToggledKeyState(uint32_t aKeyCode, bool* aLEDState)
1.6688 +{
1.6689 +#ifdef DEBUG_KBSTATE
1.6690 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("GetToggledKeyState\n"));
1.6691 +#endif
1.6692 + NS_ENSURE_ARG_POINTER(aLEDState);
1.6693 + *aLEDState = (::GetKeyState(aKeyCode) & 1) != 0;
1.6694 + return NS_OK;
1.6695 +}
1.6696 +
1.6697 +nsIMEUpdatePreference
1.6698 +nsWindow::GetIMEUpdatePreference()
1.6699 +{
1.6700 + return IMEHandler::GetUpdatePreference();
1.6701 +}
1.6702 +
1.6703 +#ifdef ACCESSIBILITY
1.6704 +#ifdef DEBUG
1.6705 +#define NS_LOG_WMGETOBJECT(aWnd, aHwnd, aAcc) \
1.6706 + if (a11y::logging::IsEnabled(a11y::logging::ePlatforms)) { \
1.6707 + printf("Get the window:\n {\n HWND: %d, parent HWND: %d, wndobj: %p,\n",\
1.6708 + aHwnd, ::GetParent(aHwnd), aWnd); \
1.6709 + printf(" acc: %p", aAcc); \
1.6710 + if (aAcc) { \
1.6711 + nsAutoString name; \
1.6712 + aAcc->Name(name); \
1.6713 + printf(", accname: %s", NS_ConvertUTF16toUTF8(name).get()); \
1.6714 + } \
1.6715 + printf("\n }\n"); \
1.6716 + }
1.6717 +
1.6718 +#else
1.6719 +#define NS_LOG_WMGETOBJECT(aWnd, aHwnd, aAcc)
1.6720 +#endif
1.6721 +
1.6722 +a11y::Accessible*
1.6723 +nsWindow::GetAccessible()
1.6724 +{
1.6725 + // If the pref was ePlatformIsDisabled, return null here, disabling a11y.
1.6726 + if (a11y::PlatformDisabledState() == a11y::ePlatformIsDisabled)
1.6727 + return nullptr;
1.6728 +
1.6729 + if (mInDtor || mOnDestroyCalled || mWindowType == eWindowType_invisible) {
1.6730 + return nullptr;
1.6731 + }
1.6732 +
1.6733 + // In case of popup window return a popup accessible.
1.6734 + nsView* view = nsView::GetViewFor(this);
1.6735 + if (view) {
1.6736 + nsIFrame* frame = view->GetFrame();
1.6737 + if (frame && nsLayoutUtils::IsPopup(frame)) {
1.6738 + nsCOMPtr<nsIAccessibilityService> accService =
1.6739 + services::GetAccessibilityService();
1.6740 + if (accService) {
1.6741 + a11y::DocAccessible* docAcc =
1.6742 + GetAccService()->GetDocAccessible(frame->PresContext()->PresShell());
1.6743 + if (docAcc) {
1.6744 + NS_LOG_WMGETOBJECT(this, mWnd,
1.6745 + docAcc->GetAccessibleOrDescendant(frame->GetContent()));
1.6746 + return docAcc->GetAccessibleOrDescendant(frame->GetContent());
1.6747 + }
1.6748 + }
1.6749 + }
1.6750 + }
1.6751 +
1.6752 + // otherwise root document accessible.
1.6753 + NS_LOG_WMGETOBJECT(this, mWnd, GetRootAccessible());
1.6754 + return GetRootAccessible();
1.6755 +}
1.6756 +#endif
1.6757 +
1.6758 +/**************************************************************
1.6759 + **************************************************************
1.6760 + **
1.6761 + ** BLOCK: Transparency
1.6762 + **
1.6763 + ** Window transparency helpers.
1.6764 + **
1.6765 + **************************************************************
1.6766 + **************************************************************/
1.6767 +
1.6768 +#ifdef MOZ_XUL
1.6769 +
1.6770 +void nsWindow::ResizeTranslucentWindow(int32_t aNewWidth, int32_t aNewHeight, bool force)
1.6771 +{
1.6772 + if (!force && aNewWidth == mBounds.width && aNewHeight == mBounds.height)
1.6773 + return;
1.6774 +
1.6775 + nsRefPtr<gfxWindowsSurface> newSurface =
1.6776 + new gfxWindowsSurface(gfxIntSize(aNewWidth, aNewHeight), gfxImageFormat::ARGB32);
1.6777 + mTransparentSurface = newSurface;
1.6778 + mMemoryDC = newSurface->GetDC();
1.6779 +}
1.6780 +
1.6781 +void nsWindow::SetWindowTranslucencyInner(nsTransparencyMode aMode)
1.6782 +{
1.6783 + if (aMode == mTransparencyMode)
1.6784 + return;
1.6785 +
1.6786 + // stop on dialogs and popups!
1.6787 + HWND hWnd = WinUtils::GetTopLevelHWND(mWnd, true);
1.6788 + nsWindow* parent = WinUtils::GetNSWindowPtr(hWnd);
1.6789 +
1.6790 + if (!parent)
1.6791 + {
1.6792 + NS_WARNING("Trying to use transparent chrome in an embedded context");
1.6793 + return;
1.6794 + }
1.6795 +
1.6796 + if (parent != this) {
1.6797 + NS_WARNING("Setting SetWindowTranslucencyInner on a parent this is not us!");
1.6798 + }
1.6799 +
1.6800 + if (aMode == eTransparencyTransparent) {
1.6801 + // If we're switching to the use of a transparent window, hide the chrome
1.6802 + // on our parent.
1.6803 + HideWindowChrome(true);
1.6804 + } else if (mHideChrome && mTransparencyMode == eTransparencyTransparent) {
1.6805 + // if we're switching out of transparent, re-enable our parent's chrome.
1.6806 + HideWindowChrome(false);
1.6807 + }
1.6808 +
1.6809 + LONG_PTR style = ::GetWindowLongPtrW(hWnd, GWL_STYLE),
1.6810 + exStyle = ::GetWindowLongPtr(hWnd, GWL_EXSTYLE);
1.6811 +
1.6812 + if (parent->mIsVisible)
1.6813 + style |= WS_VISIBLE;
1.6814 + if (parent->mSizeMode == nsSizeMode_Maximized)
1.6815 + style |= WS_MAXIMIZE;
1.6816 + else if (parent->mSizeMode == nsSizeMode_Minimized)
1.6817 + style |= WS_MINIMIZE;
1.6818 +
1.6819 + if (aMode == eTransparencyTransparent)
1.6820 + exStyle |= WS_EX_LAYERED;
1.6821 + else
1.6822 + exStyle &= ~WS_EX_LAYERED;
1.6823 +
1.6824 + VERIFY_WINDOW_STYLE(style);
1.6825 + ::SetWindowLongPtrW(hWnd, GWL_STYLE, style);
1.6826 + ::SetWindowLongPtrW(hWnd, GWL_EXSTYLE, exStyle);
1.6827 +
1.6828 + if (HasGlass())
1.6829 + memset(&mGlassMargins, 0, sizeof mGlassMargins);
1.6830 + mTransparencyMode = aMode;
1.6831 +
1.6832 + SetupTranslucentWindowMemoryBitmap(aMode);
1.6833 + UpdateGlass();
1.6834 +}
1.6835 +
1.6836 +void nsWindow::SetupTranslucentWindowMemoryBitmap(nsTransparencyMode aMode)
1.6837 +{
1.6838 + if (eTransparencyTransparent == aMode) {
1.6839 + ResizeTranslucentWindow(mBounds.width, mBounds.height, true);
1.6840 + } else {
1.6841 + mTransparentSurface = nullptr;
1.6842 + mMemoryDC = nullptr;
1.6843 + }
1.6844 +}
1.6845 +
1.6846 +void nsWindow::ClearTranslucentWindow()
1.6847 +{
1.6848 + if (mTransparentSurface) {
1.6849 + nsRefPtr<gfxContext> thebesContext = new gfxContext(mTransparentSurface);
1.6850 + thebesContext->SetOperator(gfxContext::OPERATOR_CLEAR);
1.6851 + thebesContext->Paint();
1.6852 + UpdateTranslucentWindow();
1.6853 + }
1.6854 +}
1.6855 +
1.6856 +nsresult nsWindow::UpdateTranslucentWindow()
1.6857 +{
1.6858 + if (mBounds.IsEmpty())
1.6859 + return NS_OK;
1.6860 +
1.6861 + ::GdiFlush();
1.6862 +
1.6863 + BLENDFUNCTION bf = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
1.6864 + SIZE winSize = { mBounds.width, mBounds.height };
1.6865 + POINT srcPos = { 0, 0 };
1.6866 + HWND hWnd = WinUtils::GetTopLevelHWND(mWnd, true);
1.6867 + RECT winRect;
1.6868 + ::GetWindowRect(hWnd, &winRect);
1.6869 +
1.6870 + // perform the alpha blend
1.6871 + bool updateSuccesful =
1.6872 + ::UpdateLayeredWindow(hWnd, nullptr, (POINT*)&winRect, &winSize, mMemoryDC,
1.6873 + &srcPos, 0, &bf, ULW_ALPHA);
1.6874 +
1.6875 + if (!updateSuccesful) {
1.6876 + return NS_ERROR_FAILURE;
1.6877 + }
1.6878 +
1.6879 + return NS_OK;
1.6880 +}
1.6881 +
1.6882 +#endif //MOZ_XUL
1.6883 +
1.6884 +/**************************************************************
1.6885 + **************************************************************
1.6886 + **
1.6887 + ** BLOCK: Popup rollup hooks
1.6888 + **
1.6889 + ** Deals with CaptureRollup on popup windows.
1.6890 + **
1.6891 + **************************************************************
1.6892 + **************************************************************/
1.6893 +
1.6894 +// Schedules a timer for a window, so we can rollup after processing the hook event
1.6895 +void nsWindow::ScheduleHookTimer(HWND aWnd, UINT aMsgId)
1.6896 +{
1.6897 + // In some cases multiple hooks may be scheduled
1.6898 + // so ignore any other requests once one timer is scheduled
1.6899 + if (sHookTimerId == 0) {
1.6900 + // Remember the window handle and the message ID to be used later
1.6901 + sRollupMsgId = aMsgId;
1.6902 + sRollupMsgWnd = aWnd;
1.6903 + // Schedule native timer for doing the rollup after
1.6904 + // this event is done being processed
1.6905 + sHookTimerId = ::SetTimer(nullptr, 0, 0, (TIMERPROC)HookTimerForPopups);
1.6906 + NS_ASSERTION(sHookTimerId, "Timer couldn't be created.");
1.6907 + }
1.6908 +}
1.6909 +
1.6910 +#ifdef POPUP_ROLLUP_DEBUG_OUTPUT
1.6911 +int gLastMsgCode = 0;
1.6912 +extern MSGFEventMsgInfo gMSGFEvents[];
1.6913 +#endif
1.6914 +
1.6915 +// Process Menu messages, rollup when popup is clicked.
1.6916 +LRESULT CALLBACK nsWindow::MozSpecialMsgFilter(int code, WPARAM wParam, LPARAM lParam)
1.6917 +{
1.6918 +#ifdef POPUP_ROLLUP_DEBUG_OUTPUT
1.6919 + if (sProcessHook) {
1.6920 + MSG* pMsg = (MSG*)lParam;
1.6921 +
1.6922 + int inx = 0;
1.6923 + while (gMSGFEvents[inx].mId != code && gMSGFEvents[inx].mStr != nullptr) {
1.6924 + inx++;
1.6925 + }
1.6926 + if (code != gLastMsgCode) {
1.6927 + if (gMSGFEvents[inx].mId == code) {
1.6928 +#ifdef DEBUG
1.6929 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.6930 + ("MozSpecialMessageProc - code: 0x%X - %s hw: %p\n",
1.6931 + code, gMSGFEvents[inx].mStr, pMsg->hwnd));
1.6932 +#endif
1.6933 + } else {
1.6934 +#ifdef DEBUG
1.6935 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.6936 + ("MozSpecialMessageProc - code: 0x%X - %d hw: %p\n",
1.6937 + code, gMSGFEvents[inx].mId, pMsg->hwnd));
1.6938 +#endif
1.6939 + }
1.6940 + gLastMsgCode = code;
1.6941 + }
1.6942 + PrintEvent(pMsg->message, FALSE, FALSE);
1.6943 + }
1.6944 +#endif // #ifdef POPUP_ROLLUP_DEBUG_OUTPUT
1.6945 +
1.6946 + if (sProcessHook && code == MSGF_MENU) {
1.6947 + MSG* pMsg = (MSG*)lParam;
1.6948 + ScheduleHookTimer( pMsg->hwnd, pMsg->message);
1.6949 + }
1.6950 +
1.6951 + return ::CallNextHookEx(sMsgFilterHook, code, wParam, lParam);
1.6952 +}
1.6953 +
1.6954 +// Process all mouse messages. Roll up when a click is in a native window
1.6955 +// that doesn't have an nsIWidget.
1.6956 +LRESULT CALLBACK nsWindow::MozSpecialMouseProc(int code, WPARAM wParam, LPARAM lParam)
1.6957 +{
1.6958 + if (sProcessHook) {
1.6959 + switch (WinUtils::GetNativeMessage(wParam)) {
1.6960 + case WM_LBUTTONDOWN:
1.6961 + case WM_RBUTTONDOWN:
1.6962 + case WM_MBUTTONDOWN:
1.6963 + case WM_MOUSEWHEEL:
1.6964 + case WM_MOUSEHWHEEL:
1.6965 + {
1.6966 + MOUSEHOOKSTRUCT* ms = (MOUSEHOOKSTRUCT*)lParam;
1.6967 + nsIWidget* mozWin = WinUtils::GetNSWindowPtr(ms->hwnd);
1.6968 + if (mozWin) {
1.6969 + // If this window is windowed plugin window, the mouse events are not
1.6970 + // sent to us.
1.6971 + if (static_cast<nsWindow*>(mozWin)->mWindowType == eWindowType_plugin)
1.6972 + ScheduleHookTimer(ms->hwnd, (UINT)wParam);
1.6973 + } else {
1.6974 + ScheduleHookTimer(ms->hwnd, (UINT)wParam);
1.6975 + }
1.6976 + break;
1.6977 + }
1.6978 + }
1.6979 + }
1.6980 + return ::CallNextHookEx(sCallMouseHook, code, wParam, lParam);
1.6981 +}
1.6982 +
1.6983 +// Process all messages. Roll up when the window is moving, or
1.6984 +// is resizing or when maximized or mininized.
1.6985 +LRESULT CALLBACK nsWindow::MozSpecialWndProc(int code, WPARAM wParam, LPARAM lParam)
1.6986 +{
1.6987 +#ifdef POPUP_ROLLUP_DEBUG_OUTPUT
1.6988 + if (sProcessHook) {
1.6989 + CWPSTRUCT* cwpt = (CWPSTRUCT*)lParam;
1.6990 + PrintEvent(cwpt->message, FALSE, FALSE);
1.6991 + }
1.6992 +#endif
1.6993 +
1.6994 + if (sProcessHook) {
1.6995 + CWPSTRUCT* cwpt = (CWPSTRUCT*)lParam;
1.6996 + if (cwpt->message == WM_MOVING ||
1.6997 + cwpt->message == WM_SIZING ||
1.6998 + cwpt->message == WM_GETMINMAXINFO) {
1.6999 + ScheduleHookTimer(cwpt->hwnd, (UINT)cwpt->message);
1.7000 + }
1.7001 + }
1.7002 +
1.7003 + return ::CallNextHookEx(sCallProcHook, code, wParam, lParam);
1.7004 +}
1.7005 +
1.7006 +// Register the special "hooks" for dropdown processing.
1.7007 +void nsWindow::RegisterSpecialDropdownHooks()
1.7008 +{
1.7009 + NS_ASSERTION(!sMsgFilterHook, "sMsgFilterHook must be NULL!");
1.7010 + NS_ASSERTION(!sCallProcHook, "sCallProcHook must be NULL!");
1.7011 +
1.7012 + DISPLAY_NMM_PRT("***************** Installing Msg Hooks ***************\n");
1.7013 +
1.7014 + // Install msg hook for moving the window and resizing
1.7015 + if (!sMsgFilterHook) {
1.7016 + DISPLAY_NMM_PRT("***** Hooking sMsgFilterHook!\n");
1.7017 + sMsgFilterHook = SetWindowsHookEx(WH_MSGFILTER, MozSpecialMsgFilter,
1.7018 + nullptr, GetCurrentThreadId());
1.7019 +#ifdef POPUP_ROLLUP_DEBUG_OUTPUT
1.7020 + if (!sMsgFilterHook) {
1.7021 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.7022 + ("***** SetWindowsHookEx is NOT installed for WH_MSGFILTER!\n"));
1.7023 + }
1.7024 +#endif
1.7025 + }
1.7026 +
1.7027 + // Install msg hook for menus
1.7028 + if (!sCallProcHook) {
1.7029 + DISPLAY_NMM_PRT("***** Hooking sCallProcHook!\n");
1.7030 + sCallProcHook = SetWindowsHookEx(WH_CALLWNDPROC, MozSpecialWndProc,
1.7031 + nullptr, GetCurrentThreadId());
1.7032 +#ifdef POPUP_ROLLUP_DEBUG_OUTPUT
1.7033 + if (!sCallProcHook) {
1.7034 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.7035 + ("***** SetWindowsHookEx is NOT installed for WH_CALLWNDPROC!\n"));
1.7036 + }
1.7037 +#endif
1.7038 + }
1.7039 +
1.7040 + // Install msg hook for the mouse
1.7041 + if (!sCallMouseHook) {
1.7042 + DISPLAY_NMM_PRT("***** Hooking sCallMouseHook!\n");
1.7043 + sCallMouseHook = SetWindowsHookEx(WH_MOUSE, MozSpecialMouseProc,
1.7044 + nullptr, GetCurrentThreadId());
1.7045 +#ifdef POPUP_ROLLUP_DEBUG_OUTPUT
1.7046 + if (!sCallMouseHook) {
1.7047 + PR_LOG(gWindowsLog, PR_LOG_ALWAYS,
1.7048 + ("***** SetWindowsHookEx is NOT installed for WH_MOUSE!\n"));
1.7049 + }
1.7050 +#endif
1.7051 + }
1.7052 +}
1.7053 +
1.7054 +// Unhook special message hooks for dropdowns.
1.7055 +void nsWindow::UnregisterSpecialDropdownHooks()
1.7056 +{
1.7057 + DISPLAY_NMM_PRT("***************** De-installing Msg Hooks ***************\n");
1.7058 +
1.7059 + if (sCallProcHook) {
1.7060 + DISPLAY_NMM_PRT("***** Unhooking sCallProcHook!\n");
1.7061 + if (!::UnhookWindowsHookEx(sCallProcHook)) {
1.7062 + DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sCallProcHook!\n");
1.7063 + }
1.7064 + sCallProcHook = nullptr;
1.7065 + }
1.7066 +
1.7067 + if (sMsgFilterHook) {
1.7068 + DISPLAY_NMM_PRT("***** Unhooking sMsgFilterHook!\n");
1.7069 + if (!::UnhookWindowsHookEx(sMsgFilterHook)) {
1.7070 + DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sMsgFilterHook!\n");
1.7071 + }
1.7072 + sMsgFilterHook = nullptr;
1.7073 + }
1.7074 +
1.7075 + if (sCallMouseHook) {
1.7076 + DISPLAY_NMM_PRT("***** Unhooking sCallMouseHook!\n");
1.7077 + if (!::UnhookWindowsHookEx(sCallMouseHook)) {
1.7078 + DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sCallMouseHook!\n");
1.7079 + }
1.7080 + sCallMouseHook = nullptr;
1.7081 + }
1.7082 +}
1.7083 +
1.7084 +// This timer is designed to only fire one time at most each time a "hook" function
1.7085 +// is used to rollup the dropdown. In some cases, the timer may be scheduled from the
1.7086 +// hook, but that hook event or a subsequent event may roll up the dropdown before
1.7087 +// this timer function is executed.
1.7088 +//
1.7089 +// For example, if an MFC control takes focus, the combobox will lose focus and rollup
1.7090 +// before this function fires.
1.7091 +VOID CALLBACK nsWindow::HookTimerForPopups(HWND hwnd, UINT uMsg, UINT idEvent, DWORD dwTime)
1.7092 +{
1.7093 + if (sHookTimerId != 0) {
1.7094 + // if the window is nullptr then we need to use the ID to kill the timer
1.7095 + BOOL status = ::KillTimer(nullptr, sHookTimerId);
1.7096 + NS_ASSERTION(status, "Hook Timer was not killed.");
1.7097 + sHookTimerId = 0;
1.7098 + }
1.7099 +
1.7100 + if (sRollupMsgId != 0) {
1.7101 + // Note: DealWithPopups does the check to make sure that the rollup widget is set.
1.7102 + LRESULT popupHandlingResult;
1.7103 + nsAutoRollup autoRollup;
1.7104 + DealWithPopups(sRollupMsgWnd, sRollupMsgId, 0, 0, &popupHandlingResult);
1.7105 + sRollupMsgId = 0;
1.7106 + sRollupMsgWnd = nullptr;
1.7107 + }
1.7108 +}
1.7109 +
1.7110 +BOOL CALLBACK nsWindow::ClearResourcesCallback(HWND aWnd, LPARAM aMsg)
1.7111 +{
1.7112 + nsWindow *window = WinUtils::GetNSWindowPtr(aWnd);
1.7113 + if (window) {
1.7114 + window->ClearCachedResources();
1.7115 + }
1.7116 + return TRUE;
1.7117 +}
1.7118 +
1.7119 +void
1.7120 +nsWindow::ClearCachedResources()
1.7121 +{
1.7122 + if (mLayerManager &&
1.7123 + mLayerManager->GetBackendType() == LayersBackend::LAYERS_BASIC) {
1.7124 + mLayerManager->ClearCachedResources();
1.7125 + }
1.7126 + ::EnumChildWindows(mWnd, nsWindow::ClearResourcesCallback, 0);
1.7127 +}
1.7128 +
1.7129 +static bool IsDifferentThreadWindow(HWND aWnd)
1.7130 +{
1.7131 + return ::GetCurrentThreadId() != ::GetWindowThreadProcessId(aWnd, nullptr);
1.7132 +}
1.7133 +
1.7134 +// static
1.7135 +bool
1.7136 +nsWindow::EventIsInsideWindow(nsWindow* aWindow)
1.7137 +{
1.7138 + RECT r;
1.7139 + ::GetWindowRect(aWindow->mWnd, &r);
1.7140 + DWORD pos = ::GetMessagePos();
1.7141 + POINT mp;
1.7142 + mp.x = GET_X_LPARAM(pos);
1.7143 + mp.y = GET_Y_LPARAM(pos);
1.7144 +
1.7145 + // was the event inside this window?
1.7146 + return static_cast<bool>(::PtInRect(&r, mp));
1.7147 +}
1.7148 +
1.7149 +// static
1.7150 +bool
1.7151 +nsWindow::GetPopupsToRollup(nsIRollupListener* aRollupListener,
1.7152 + uint32_t* aPopupsToRollup)
1.7153 +{
1.7154 + // If we're dealing with menus, we probably have submenus and we don't want
1.7155 + // to rollup some of them if the click is in a parent menu of the current
1.7156 + // submenu.
1.7157 + *aPopupsToRollup = UINT32_MAX;
1.7158 + nsAutoTArray<nsIWidget*, 5> widgetChain;
1.7159 + uint32_t sameTypeCount =
1.7160 + aRollupListener->GetSubmenuWidgetChain(&widgetChain);
1.7161 + for (uint32_t i = 0; i < widgetChain.Length(); ++i) {
1.7162 + nsIWidget* widget = widgetChain[i];
1.7163 + if (EventIsInsideWindow(static_cast<nsWindow*>(widget))) {
1.7164 + // Don't roll up if the mouse event occurred within a menu of the
1.7165 + // same type. If the mouse event occurred in a menu higher than that,
1.7166 + // roll up, but pass the number of popups to Rollup so that only those
1.7167 + // of the same type close up.
1.7168 + if (i < sameTypeCount) {
1.7169 + return false;
1.7170 + }
1.7171 +
1.7172 + *aPopupsToRollup = sameTypeCount;
1.7173 + break;
1.7174 + }
1.7175 + }
1.7176 + return true;
1.7177 +}
1.7178 +
1.7179 +// static
1.7180 +bool
1.7181 +nsWindow::NeedsToHandleNCActivateDelayed(HWND aWnd)
1.7182 +{
1.7183 + // While popup is open, popup window might be activated by other application.
1.7184 + // At this time, we need to take back focus to the previous window but it
1.7185 + // causes flickering its nonclient area because WM_NCACTIVATE comes before
1.7186 + // WM_ACTIVATE and we cannot know which window will take focus at receiving
1.7187 + // WM_NCACTIVATE. Therefore, we need a hack for preventing the flickerling.
1.7188 + //
1.7189 + // If non-popup window receives WM_NCACTIVATE at deactivating, default
1.7190 + // wndproc shouldn't handle it as deactivating. Instead, at receiving
1.7191 + // WM_ACTIVIATE after that, WM_NCACTIVATE should be sent again manually.
1.7192 + // This returns true if the window needs to handle WM_NCACTIVATE later.
1.7193 +
1.7194 + nsWindow* window = WinUtils::GetNSWindowPtr(aWnd);
1.7195 + return window && !window->IsPopup();
1.7196 +}
1.7197 +
1.7198 +// static
1.7199 +bool
1.7200 +nsWindow::DealWithPopups(HWND aWnd, UINT aMessage,
1.7201 + WPARAM aWParam, LPARAM aLParam, LRESULT* aResult)
1.7202 +{
1.7203 + NS_ASSERTION(aResult, "Bad outResult");
1.7204 +
1.7205 + // XXX Why do we use the return value of WM_MOUSEACTIVATE for all messages?
1.7206 + *aResult = MA_NOACTIVATE;
1.7207 +
1.7208 + if (!::IsWindowVisible(aWnd)) {
1.7209 + return false;
1.7210 + }
1.7211 +
1.7212 + nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
1.7213 + NS_ENSURE_TRUE(rollupListener, false);
1.7214 +
1.7215 + nsCOMPtr<nsIWidget> popup = rollupListener->GetRollupWidget();
1.7216 + if (!popup) {
1.7217 + return false;
1.7218 + }
1.7219 +
1.7220 + static bool sSendingNCACTIVATE = false;
1.7221 + static bool sPendingNCACTIVATE = false;
1.7222 + uint32_t popupsToRollup = UINT32_MAX;
1.7223 +
1.7224 + nsWindow* popupWindow = static_cast<nsWindow*>(popup.get());
1.7225 + UINT nativeMessage = WinUtils::GetNativeMessage(aMessage);
1.7226 + switch (nativeMessage) {
1.7227 + case WM_LBUTTONDOWN:
1.7228 + case WM_RBUTTONDOWN:
1.7229 + case WM_MBUTTONDOWN:
1.7230 + case WM_NCLBUTTONDOWN:
1.7231 + case WM_NCRBUTTONDOWN:
1.7232 + case WM_NCMBUTTONDOWN:
1.7233 + if (!EventIsInsideWindow(popupWindow) &&
1.7234 + GetPopupsToRollup(rollupListener, &popupsToRollup)) {
1.7235 + break;
1.7236 + }
1.7237 + return false;
1.7238 +
1.7239 + case WM_MOUSEWHEEL:
1.7240 + case WM_MOUSEHWHEEL:
1.7241 + // We need to check if the popup thinks that it should cause closing
1.7242 + // itself when mouse wheel events are fired outside the rollup widget.
1.7243 + if (!EventIsInsideWindow(popupWindow)) {
1.7244 + *aResult = MA_ACTIVATE;
1.7245 + if (rollupListener->ShouldRollupOnMouseWheelEvent() &&
1.7246 + GetPopupsToRollup(rollupListener, &popupsToRollup)) {
1.7247 + break;
1.7248 + }
1.7249 + }
1.7250 + return false;
1.7251 +
1.7252 + case WM_ACTIVATEAPP:
1.7253 + break;
1.7254 +
1.7255 + case WM_ACTIVATE:
1.7256 + // NOTE: Don't handle WA_INACTIVE for preventing popup taking focus
1.7257 + // because we cannot distinguish it's caused by mouse or not.
1.7258 + if (LOWORD(aWParam) == WA_ACTIVE && aLParam) {
1.7259 + nsWindow* window = WinUtils::GetNSWindowPtr(aWnd);
1.7260 + if (window && window->IsPopup()) {
1.7261 + // Cancel notifying widget listeners of deactivating the previous
1.7262 + // active window (see WM_KILLFOCUS case in ProcessMessage()).
1.7263 + sJustGotDeactivate = false;
1.7264 + // Reactivate the window later.
1.7265 + ::PostMessageW(aWnd, MOZ_WM_REACTIVATE, aWParam, aLParam);
1.7266 + return true;
1.7267 + }
1.7268 + // Don't rollup the popup when focus moves back to the parent window
1.7269 + // from a popup because such case is caused by strange mouse drivers.
1.7270 + nsWindow* prevWindow =
1.7271 + WinUtils::GetNSWindowPtr(reinterpret_cast<HWND>(aLParam));
1.7272 + if (prevWindow && prevWindow->IsPopup()) {
1.7273 + return false;
1.7274 + }
1.7275 + } else if (LOWORD(aWParam) == WA_INACTIVE) {
1.7276 + nsWindow* activeWindow =
1.7277 + WinUtils::GetNSWindowPtr(reinterpret_cast<HWND>(aLParam));
1.7278 + if (sPendingNCACTIVATE && NeedsToHandleNCActivateDelayed(aWnd)) {
1.7279 + // If focus moves to non-popup widget or focusable popup, the window
1.7280 + // needs to update its nonclient area.
1.7281 + if (!activeWindow || !activeWindow->IsPopup()) {
1.7282 + sSendingNCACTIVATE = true;
1.7283 + ::SendMessageW(aWnd, WM_NCACTIVATE, false, 0);
1.7284 + sSendingNCACTIVATE = false;
1.7285 + }
1.7286 + sPendingNCACTIVATE = false;
1.7287 + }
1.7288 + // If focus moves from/to popup, we don't need to rollup the popup
1.7289 + // because such case is caused by strange mouse drivers.
1.7290 + if (activeWindow) {
1.7291 + if (activeWindow->IsPopup()) {
1.7292 + return false;
1.7293 + }
1.7294 + nsWindow* deactiveWindow = WinUtils::GetNSWindowPtr(aWnd);
1.7295 + if (deactiveWindow && deactiveWindow->IsPopup()) {
1.7296 + return false;
1.7297 + }
1.7298 + }
1.7299 + } else if (LOWORD(aWParam) == WA_CLICKACTIVE) {
1.7300 + // If the WM_ACTIVATE message is caused by a click in a popup,
1.7301 + // we should not rollup any popups.
1.7302 + if (EventIsInsideWindow(popupWindow) ||
1.7303 + !GetPopupsToRollup(rollupListener, &popupsToRollup)) {
1.7304 + return false;
1.7305 + }
1.7306 + }
1.7307 + break;
1.7308 +
1.7309 + case MOZ_WM_REACTIVATE:
1.7310 + // The previous active window should take back focus.
1.7311 + if (::IsWindow(reinterpret_cast<HWND>(aLParam))) {
1.7312 + ::SetForegroundWindow(reinterpret_cast<HWND>(aLParam));
1.7313 + }
1.7314 + return true;
1.7315 +
1.7316 + case WM_NCACTIVATE:
1.7317 + if (!aWParam && !sSendingNCACTIVATE &&
1.7318 + NeedsToHandleNCActivateDelayed(aWnd)) {
1.7319 + // Don't just consume WM_NCACTIVATE. It doesn't handle only the
1.7320 + // nonclient area state change.
1.7321 + ::DefWindowProcW(aWnd, aMessage, TRUE, aLParam);
1.7322 + // Accept the deactivating because it's necessary to receive following
1.7323 + // WM_ACTIVATE.
1.7324 + *aResult = TRUE;
1.7325 + sPendingNCACTIVATE = true;
1.7326 + return true;
1.7327 + }
1.7328 + return false;
1.7329 +
1.7330 + case WM_MOUSEACTIVATE:
1.7331 + if (!EventIsInsideWindow(popupWindow) &&
1.7332 + GetPopupsToRollup(rollupListener, &popupsToRollup)) {
1.7333 + // WM_MOUSEACTIVATE may be caused by moving the mouse (e.g., X-mouse
1.7334 + // of TweakUI is enabled. Then, check if the popup should be rolled up
1.7335 + // with rollup listener. If not, just consume the message.
1.7336 + if (HIWORD(aLParam) == WM_MOUSEMOVE &&
1.7337 + !rollupListener->ShouldRollupOnMouseActivate()) {
1.7338 + return true;
1.7339 + }
1.7340 + // Otherwise, it should be handled by wndproc.
1.7341 + return false;
1.7342 + }
1.7343 +
1.7344 + // Prevent the click inside the popup from causing a change in window
1.7345 + // activation. Since the popup is shown non-activated, we need to eat any
1.7346 + // requests to activate the window while it is displayed. Windows will
1.7347 + // automatically activate the popup on the mousedown otherwise.
1.7348 + return true;
1.7349 +
1.7350 + case WM_KILLFOCUS:
1.7351 + // If focus moves to other window created in different process/thread,
1.7352 + // e.g., a plugin window, popups should be rolled up.
1.7353 + if (IsDifferentThreadWindow(reinterpret_cast<HWND>(aWParam))) {
1.7354 + break;
1.7355 + }
1.7356 + return false;
1.7357 +
1.7358 + case WM_MOVING:
1.7359 + case WM_SIZING:
1.7360 + case WM_MENUSELECT:
1.7361 + break;
1.7362 +
1.7363 + default:
1.7364 + return false;
1.7365 + }
1.7366 +
1.7367 + // Only need to deal with the last rollup for left mouse down events.
1.7368 + NS_ASSERTION(!mLastRollup, "mLastRollup is null");
1.7369 +
1.7370 + bool consumeRollupEvent;
1.7371 + if (nativeMessage == WM_LBUTTONDOWN) {
1.7372 + POINT pt;
1.7373 + pt.x = GET_X_LPARAM(aLParam);
1.7374 + pt.y = GET_Y_LPARAM(aLParam);
1.7375 + ::ClientToScreen(aWnd, &pt);
1.7376 + nsIntPoint pos(pt.x, pt.y);
1.7377 +
1.7378 + consumeRollupEvent =
1.7379 + rollupListener->Rollup(popupsToRollup, &pos, &mLastRollup);
1.7380 + NS_IF_ADDREF(mLastRollup);
1.7381 + } else {
1.7382 + consumeRollupEvent =
1.7383 + rollupListener->Rollup(popupsToRollup, nullptr, nullptr);
1.7384 + }
1.7385 +
1.7386 + // Tell hook to stop processing messages
1.7387 + sProcessHook = false;
1.7388 + sRollupMsgId = 0;
1.7389 + sRollupMsgWnd = nullptr;
1.7390 +
1.7391 + // If we are NOT supposed to be consuming events, let it go through
1.7392 + if (consumeRollupEvent && nativeMessage != WM_RBUTTONDOWN) {
1.7393 + *aResult = MA_ACTIVATE;
1.7394 + return true;
1.7395 + }
1.7396 +
1.7397 + return false;
1.7398 +}
1.7399 +
1.7400 +/**************************************************************
1.7401 + **************************************************************
1.7402 + **
1.7403 + ** BLOCK: Misc. utility methods and functions.
1.7404 + **
1.7405 + ** General use.
1.7406 + **
1.7407 + **************************************************************
1.7408 + **************************************************************/
1.7409 +
1.7410 +// Note that the result of GetTopLevelWindow method can be different from the
1.7411 +// result of WinUtils::GetTopLevelHWND(). The result can be non-floating
1.7412 +// window. Because our top level window may be contained in another window
1.7413 +// which is not managed by us.
1.7414 +nsWindow* nsWindow::GetTopLevelWindow(bool aStopOnDialogOrPopup)
1.7415 +{
1.7416 + nsWindow* curWindow = this;
1.7417 +
1.7418 + while (true) {
1.7419 + if (aStopOnDialogOrPopup) {
1.7420 + switch (curWindow->mWindowType) {
1.7421 + case eWindowType_dialog:
1.7422 + case eWindowType_popup:
1.7423 + return curWindow;
1.7424 + default:
1.7425 + break;
1.7426 + }
1.7427 + }
1.7428 +
1.7429 + // Retrieve the top level parent or owner window
1.7430 + nsWindow* parentWindow = curWindow->GetParentWindow(true);
1.7431 +
1.7432 + if (!parentWindow)
1.7433 + return curWindow;
1.7434 +
1.7435 + curWindow = parentWindow;
1.7436 + }
1.7437 +}
1.7438 +
1.7439 +static BOOL CALLBACK gEnumWindowsProc(HWND hwnd, LPARAM lParam)
1.7440 +{
1.7441 + DWORD pid;
1.7442 + ::GetWindowThreadProcessId(hwnd, &pid);
1.7443 + if (pid == GetCurrentProcessId() && ::IsWindowVisible(hwnd))
1.7444 + {
1.7445 + gWindowsVisible = true;
1.7446 + return FALSE;
1.7447 + }
1.7448 + return TRUE;
1.7449 +}
1.7450 +
1.7451 +bool nsWindow::CanTakeFocus()
1.7452 +{
1.7453 + gWindowsVisible = false;
1.7454 + EnumWindows(gEnumWindowsProc, 0);
1.7455 + if (!gWindowsVisible) {
1.7456 + return true;
1.7457 + } else {
1.7458 + HWND fgWnd = ::GetForegroundWindow();
1.7459 + if (!fgWnd) {
1.7460 + return true;
1.7461 + }
1.7462 + DWORD pid;
1.7463 + GetWindowThreadProcessId(fgWnd, &pid);
1.7464 + if (pid == GetCurrentProcessId()) {
1.7465 + return true;
1.7466 + }
1.7467 + }
1.7468 + return false;
1.7469 +}
1.7470 +
1.7471 +void nsWindow::GetMainWindowClass(nsAString& aClass)
1.7472 +{
1.7473 + NS_PRECONDITION(aClass.IsEmpty(), "aClass should be empty string");
1.7474 + nsresult rv = Preferences::GetString("ui.window_class_override", &aClass);
1.7475 + if (NS_FAILED(rv) || aClass.IsEmpty()) {
1.7476 + aClass.AssignASCII(sDefaultMainWindowClass);
1.7477 + }
1.7478 +}
1.7479 +
1.7480 +LPARAM nsWindow::lParamToScreen(LPARAM lParam)
1.7481 +{
1.7482 + POINT pt;
1.7483 + pt.x = GET_X_LPARAM(lParam);
1.7484 + pt.y = GET_Y_LPARAM(lParam);
1.7485 + ::ClientToScreen(mWnd, &pt);
1.7486 + return MAKELPARAM(pt.x, pt.y);
1.7487 +}
1.7488 +
1.7489 +LPARAM nsWindow::lParamToClient(LPARAM lParam)
1.7490 +{
1.7491 + POINT pt;
1.7492 + pt.x = GET_X_LPARAM(lParam);
1.7493 + pt.y = GET_Y_LPARAM(lParam);
1.7494 + ::ScreenToClient(mWnd, &pt);
1.7495 + return MAKELPARAM(pt.x, pt.y);
1.7496 +}
1.7497 +
1.7498 +void nsWindow::PickerOpen()
1.7499 +{
1.7500 + mPickerDisplayCount++;
1.7501 +}
1.7502 +
1.7503 +void nsWindow::PickerClosed()
1.7504 +{
1.7505 + NS_ASSERTION(mPickerDisplayCount > 0, "mPickerDisplayCount out of sync!");
1.7506 + if (!mPickerDisplayCount)
1.7507 + return;
1.7508 + mPickerDisplayCount--;
1.7509 + if (!mPickerDisplayCount && mDestroyCalled) {
1.7510 + Destroy();
1.7511 + }
1.7512 +}
1.7513 +
1.7514 +/**************************************************************
1.7515 + **************************************************************
1.7516 + **
1.7517 + ** BLOCK: ChildWindow impl.
1.7518 + **
1.7519 + ** Child window overrides.
1.7520 + **
1.7521 + **************************************************************
1.7522 + **************************************************************/
1.7523 +
1.7524 +// return the style for a child nsWindow
1.7525 +DWORD ChildWindow::WindowStyle()
1.7526 +{
1.7527 + DWORD style = WS_CLIPCHILDREN | nsWindow::WindowStyle();
1.7528 + if (!(style & WS_POPUP))
1.7529 + style |= WS_CHILD; // WS_POPUP and WS_CHILD are mutually exclusive.
1.7530 + VERIFY_WINDOW_STYLE(style);
1.7531 + return style;
1.7532 +}
