michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsToolkit.h"
michael@0: #include "nsAppShell.h"
michael@0: #include "nsWindow.h"
michael@0: #include "nsWidgetsCID.h"
michael@0: #include "prmon.h"
michael@0: #include "prtime.h"
michael@0: #include "nsIServiceManager.h"
michael@0: #include "nsComponentManagerUtils.h"
michael@0: #include <objbase.h>
michael@0: #include "WinUtils.h"
michael@0: 
michael@0: #include "nsUXThemeData.h"
michael@0: 
michael@0: // unknwn.h is needed to build with WIN32_LEAN_AND_MEAN
michael@0: #include <unknwn.h>
michael@0: 
michael@0: using namespace mozilla::widget;
michael@0: 
michael@0: nsToolkit* nsToolkit::gToolkit = nullptr;
michael@0: HINSTANCE nsToolkit::mDllInstance = 0;
michael@0: static const unsigned long kD3DUsageDelay = 5000;
michael@0: 
michael@0: static void
michael@0: StartAllowingD3D9(nsITimer *aTimer, void *aClosure)
michael@0: {
michael@0:   if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Desktop) {
michael@0:     nsWindow::StartAllowingD3D9(true);
michael@0:   }
michael@0: }
michael@0: 
michael@0: MouseTrailer*       nsToolkit::gMouseTrailer;
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: // constructor
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: nsToolkit::nsToolkit()  
michael@0: {
michael@0:     MOZ_COUNT_CTOR(nsToolkit);
michael@0: 
michael@0: #if defined(MOZ_STATIC_COMPONENT_LIBS)
michael@0:     nsToolkit::Startup(GetModuleHandle(nullptr));
michael@0: #endif
michael@0: 
michael@0:     gMouseTrailer = &mMouseTrailer;
michael@0: 
michael@0:     if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Desktop) {
michael@0:       mD3D9Timer = do_CreateInstance("@mozilla.org/timer;1");
michael@0:       mD3D9Timer->InitWithFuncCallback(::StartAllowingD3D9,
michael@0:                                        nullptr,
michael@0:                                        kD3DUsageDelay,
michael@0:                                        nsITimer::TYPE_ONE_SHOT);
michael@0:     }
michael@0: }
michael@0: 
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: // destructor
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: nsToolkit::~nsToolkit()
michael@0: {
michael@0:     MOZ_COUNT_DTOR(nsToolkit);
michael@0:     gMouseTrailer = nullptr;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsToolkit::Startup(HMODULE hModule)
michael@0: {
michael@0:     nsToolkit::mDllInstance = hModule;
michael@0:     WinUtils::Initialize();
michael@0:     nsUXThemeData::Initialize();
michael@0: }
michael@0: 
michael@0: void
michael@0: nsToolkit::Shutdown()
michael@0: {
michael@0:     delete gToolkit;
michael@0:     gToolkit = nullptr;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsToolkit::StartAllowingD3D9()
michael@0: {
michael@0:   if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Desktop) {
michael@0:     nsToolkit::GetToolkit()->mD3D9Timer->Cancel();
michael@0:     nsWindow::StartAllowingD3D9(false);
michael@0:   }
michael@0: }
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: // Return the nsToolkit for the current thread.  If a toolkit does not
michael@0: // yet exist, then one will be created...
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: // static
michael@0: nsToolkit* nsToolkit::GetToolkit()
michael@0: {
michael@0:   if (!gToolkit) {
michael@0:     gToolkit = new nsToolkit();
michael@0:   }
michael@0: 
michael@0:   return gToolkit;
michael@0: }
michael@0: 
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: MouseTrailer::MouseTrailer() : mMouseTrailerWindow(nullptr), mCaptureWindow(nullptr),
michael@0:   mIsInCaptureMode(false), mEnabled(true)
michael@0: {
michael@0: }
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: MouseTrailer::~MouseTrailer()
michael@0: {
michael@0:   DestroyTimer();
michael@0: }
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: void MouseTrailer::SetMouseTrailerWindow(HWND aWnd) 
michael@0: {
michael@0:   if (mMouseTrailerWindow != aWnd && mTimer) {
michael@0:     // Make sure TimerProc is fired at least once for the old window
michael@0:     TimerProc(nullptr, nullptr);
michael@0:   }
michael@0:   mMouseTrailerWindow = aWnd;
michael@0:   CreateTimer();
michael@0: }
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: void MouseTrailer::SetCaptureWindow(HWND aWnd) 
michael@0: { 
michael@0:   mCaptureWindow = aWnd;
michael@0:   if (mCaptureWindow) {
michael@0:     mIsInCaptureMode = true;
michael@0:   }
michael@0: }
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: nsresult MouseTrailer::CreateTimer()
michael@0: {
michael@0:   if (mTimer || !mEnabled) {
michael@0:     return NS_OK;
michael@0:   } 
michael@0: 
michael@0:   nsresult rv;
michael@0:   mTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   return mTimer->InitWithFuncCallback(TimerProc, nullptr, 200,
michael@0:                                       nsITimer::TYPE_REPEATING_SLACK);
michael@0: }
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: void MouseTrailer::DestroyTimer()
michael@0: {
michael@0:   if (mTimer) {
michael@0:     mTimer->Cancel();
michael@0:     mTimer = nullptr;
michael@0:   }
michael@0: }
michael@0: 
michael@0: //-------------------------------------------------------------------------
michael@0: //
michael@0: //
michael@0: //-------------------------------------------------------------------------
michael@0: void MouseTrailer::TimerProc(nsITimer* aTimer, void* aClosure)
michael@0: {
michael@0:   MouseTrailer *mtrailer = nsToolkit::gMouseTrailer;
michael@0:   NS_ASSERTION(mtrailer, "MouseTrailer still firing after deletion!");
michael@0: 
michael@0:   // Check to see if we are in mouse capture mode,
michael@0:   // Once capture ends we could still get back one more timer event.
michael@0:   // Capture could end outside our window.
michael@0:   // Also, for some reason when the mouse is on the frame it thinks that
michael@0:   // it is inside the window that is being captured.
michael@0:   if (mtrailer->mCaptureWindow) {
michael@0:     if (mtrailer->mCaptureWindow != mtrailer->mMouseTrailerWindow) {
michael@0:       return;
michael@0:     }
michael@0:   } else {
michael@0:     if (mtrailer->mIsInCaptureMode) {
michael@0:       // mMouseTrailerWindow could be bad from rolling over the frame, so clear 
michael@0:       // it if we were capturing and now this is the first timer callback 
michael@0:       // since we canceled the capture
michael@0:       mtrailer->mMouseTrailerWindow = nullptr;
michael@0:       mtrailer->mIsInCaptureMode = false;
michael@0:       return;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   if (mtrailer->mMouseTrailerWindow && ::IsWindow(mtrailer->mMouseTrailerWindow)) {
michael@0:     POINT mp;
michael@0:     DWORD pos = ::GetMessagePos();
michael@0:     mp.x = GET_X_LPARAM(pos);
michael@0:     mp.y = GET_Y_LPARAM(pos);
michael@0:     HWND mouseWnd = ::WindowFromPoint(mp);
michael@0:     if (mtrailer->mMouseTrailerWindow != mouseWnd) {
michael@0:       // Notify someone that a mouse exit happened.
michael@0:       PostMessage(mtrailer->mMouseTrailerWindow, WM_MOUSELEAVE, 0, 0);
michael@0: 
michael@0:       // we are out of this window, destroy timer
michael@0:       mtrailer->DestroyTimer();
michael@0:       mtrailer->mMouseTrailerWindow = nullptr;
michael@0:     }
michael@0:   } else {
michael@0:     mtrailer->DestroyTimer();
michael@0:     mtrailer->mMouseTrailerWindow = nullptr;
michael@0:   }
michael@0: }
michael@0: