The Tor Browser / annotate

widget/qt/nsWindow.h@97036ab72558 (annotated)

widget/qt/nsWindow.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* vim:expandtab:shiftwidth=4:tabstop=4:
michael@0 3 */
michael@0 4 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 5 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 7
michael@0 8 #ifndef __nsWindow_h__
michael@0 9 #define __nsWindow_h__
michael@0 10
michael@0 11 #include <QPointF>
michael@0 12
michael@0 13 #include "nsAutoPtr.h"
michael@0 14 #include "nsBaseWidget.h"
michael@0 15 #include "mozilla/EventForwards.h"
michael@0 16
michael@0 17 #include "nsWeakReference.h"
michael@0 18
michael@0 19 #include "nsGkAtoms.h"
michael@0 20 #include "nsIIdleServiceInternal.h"
michael@0 21 #include "nsIRunnable.h"
michael@0 22 #include "nsThreadUtils.h"
michael@0 23
michael@0 24 #ifdef MOZ_LOGGING
michael@0 25
michael@0 26 // make sure that logging is enabled before including prlog.h
michael@0 27 #define FORCE_PR_LOG
michael@0 28
michael@0 29 #include "prlog.h"
michael@0 30 #include "nsTArray.h"
michael@0 31
michael@0 32 extern PRLogModuleInfo *gWidgetLog;
michael@0 33 extern PRLogModuleInfo *gWidgetFocusLog;
michael@0 34 extern PRLogModuleInfo *gWidgetIMLog;
michael@0 35 extern PRLogModuleInfo *gWidgetDrawLog;
michael@0 36
michael@0 37 #define LOG(args) PR_LOG(gWidgetLog, 4, args)
michael@0 38 #define LOGFOCUS(args) PR_LOG(gWidgetFocusLog, 4, args)
michael@0 39 #define LOGIM(args) PR_LOG(gWidgetIMLog, 4, args)
michael@0 40 #define LOGDRAW(args) PR_LOG(gWidgetDrawLog, 4, args)
michael@0 41
michael@0 42 #else
michael@0 43
michael@0 44 #ifdef DEBUG_WIDGETS
michael@0 45
michael@0 46 #define PR_LOG2(_args) \
michael@0 47 PR_BEGIN_MACRO \
michael@0 48 qDebug _args; \
michael@0 49 PR_END_MACRO
michael@0 50
michael@0 51 #define LOG(args) PR_LOG2(args)
michael@0 52 #define LOGFOCUS(args) PR_LOG2(args)
michael@0 53 #define LOGIM(args) PR_LOG2(args)
michael@0 54 #define LOGDRAW(args) PR_LOG2(args)
michael@0 55
michael@0 56 #else
michael@0 57
michael@0 58 #define LOG(args)
michael@0 59 #define LOGFOCUS(args)
michael@0 60 #define LOGIM(args)
michael@0 61 #define LOGDRAW(args)
michael@0 62
michael@0 63 #endif
michael@0 64
michael@0 65 #endif /* MOZ_LOGGING */
michael@0 66
michael@0 67 class nsIdleService;
michael@0 68 class QCloseEvent;
michael@0 69 class QFocusEvent;
michael@0 70 class QHideEvent;
michael@0 71 class QKeyEvent;
michael@0 72 class QMouseEvent;
michael@0 73 class QMoveEvent;
michael@0 74 class QResizeEvent;
michael@0 75 class QShowEvent;
michael@0 76 class QTabletEvent;
michael@0 77 class QTouchEvent;
michael@0 78 class QWheelEvent;
michael@0 79
michael@0 80 namespace mozilla {
michael@0 81 namespace widget {
michael@0 82 class MozQWidget;
michael@0 83 class nsWindow : public nsBaseWidget,
michael@0 84 public nsSupportsWeakReference
michael@0 85 {
michael@0 86 public:
michael@0 87 nsWindow();
michael@0 88 virtual ~nsWindow();
michael@0 89
michael@0 90 NS_DECL_ISUPPORTS_INHERITED
michael@0 91
michael@0 92 //
michael@0 93 // nsIWidget
michael@0 94 //
michael@0 95 NS_IMETHOD Create(nsIWidget *aParent,
michael@0 96 nsNativeWidget aNativeParent,
michael@0 97 const nsIntRect &aRect,
michael@0 98 nsDeviceContext *aContext,
michael@0 99 nsWidgetInitData *aInitData);
michael@0 100 NS_IMETHOD Destroy(void);
michael@0 101
michael@0 102 NS_IMETHOD Show(bool aState);
michael@0 103 virtual bool IsVisible() const;
michael@0 104 NS_IMETHOD ConstrainPosition(bool aAllowSlop,
michael@0 105 int32_t *aX,
michael@0 106 int32_t *aY);
michael@0 107 NS_IMETHOD Move(double aX,
michael@0 108 double aY);
michael@0 109 NS_IMETHOD Resize(double aWidth,
michael@0 110 double aHeight,
michael@0 111 bool aRepaint);
michael@0 112 NS_IMETHOD Resize(double aX,
michael@0 113 double aY,
michael@0 114 double aWidth,
michael@0 115 double aHeight,
michael@0 116 bool aRepaint);
michael@0 117 NS_IMETHOD Enable(bool aState);
michael@0 118 // Some of the nsIWidget methods
michael@0 119 virtual bool IsEnabled() const;
michael@0 120 NS_IMETHOD SetFocus(bool aRaise = false);
michael@0 121 NS_IMETHOD ConfigureChildren(const nsTArray<nsIWidget::Configuration>&);
michael@0 122 NS_IMETHOD Invalidate(const nsIntRect &aRect);
michael@0 123 virtual void* GetNativeData(uint32_t aDataType);
michael@0 124 NS_IMETHOD SetTitle(const nsAString& aTitle);
michael@0 125 NS_IMETHOD SetCursor(nsCursor aCursor);
michael@0 126 NS_IMETHOD SetCursor(imgIContainer* aCursor,
michael@0 127 uint32_t aHotspotX, uint32_t aHotspotY)
michael@0 128 {
michael@0 129 return NS_OK;
michael@0 130 }
michael@0 131 virtual nsIntPoint WidgetToScreenOffset();
michael@0 132 NS_IMETHOD DispatchEvent(mozilla::WidgetGUIEvent* aEvent,
michael@0 133 nsEventStatus& aStatus);
michael@0 134 NS_IMETHOD CaptureRollupEvents(nsIRollupListener *aListener,
michael@0 135 bool aDoCapture)
michael@0 136 {
michael@0 137 return NS_ERROR_NOT_IMPLEMENTED;
michael@0 138 }
michael@0 139 NS_IMETHOD ReparentNativeWidget(nsIWidget* aNewParent);
michael@0 140
michael@0 141 NS_IMETHOD MakeFullScreen(bool aFullScreen);
michael@0 142 virtual mozilla::layers::LayerManager*
michael@0 143 GetLayerManager(PLayerTransactionChild* aShadowManager = nullptr,
michael@0 144 LayersBackend aBackendHint = mozilla::layers::LayersBackend::LAYERS_NONE,
michael@0 145 LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT,
michael@0 146 bool* aAllowRetaining = nullptr);
michael@0 147
michael@0 148 NS_IMETHOD_(void) SetInputContext(const InputContext& aContext,
michael@0 149 const InputContextAction& aAction);
michael@0 150 NS_IMETHOD_(InputContext) GetInputContext();
michael@0 151
michael@0 152 virtual uint32_t GetGLFrameBufferFormat() MOZ_OVERRIDE;
michael@0 153
michael@0 154 // Widget notifications
michael@0 155 virtual void OnPaint();
michael@0 156 virtual nsEventStatus focusInEvent(QFocusEvent* aEvent);
michael@0 157 virtual nsEventStatus focusOutEvent(QFocusEvent* aEvent);
michael@0 158 virtual nsEventStatus hideEvent(QHideEvent* aEvent);
michael@0 159 virtual nsEventStatus showEvent(QShowEvent* aEvent);
michael@0 160 virtual nsEventStatus keyPressEvent(QKeyEvent* aEvent);
michael@0 161 virtual nsEventStatus keyReleaseEvent(QKeyEvent* aEvent);
michael@0 162 virtual nsEventStatus mouseDoubleClickEvent(QMouseEvent* aEvent);
michael@0 163 virtual nsEventStatus mouseMoveEvent(QMouseEvent* aEvent);
michael@0 164 virtual nsEventStatus mousePressEvent(QMouseEvent* aEvent);
michael@0 165 virtual nsEventStatus mouseReleaseEvent(QMouseEvent* aEvent);
michael@0 166 virtual nsEventStatus moveEvent(QMoveEvent* aEvent);
michael@0 167 virtual nsEventStatus resizeEvent(QResizeEvent* aEvent);
michael@0 168 virtual nsEventStatus touchEvent(QTouchEvent* aEvent);
michael@0 169 virtual nsEventStatus wheelEvent(QWheelEvent* aEvent);
michael@0 170 virtual nsEventStatus tabletEvent(QTabletEvent* event);
michael@0 171
michael@0 172 protected:
michael@0 173 nsWindow* mParent;
michael@0 174 bool mVisible;
michael@0 175 InputContext mInputContext;
michael@0 176 nsCOMPtr<nsIIdleServiceInternal> mIdleService;
michael@0 177 MozQWidget* mWidget;
michael@0 178
michael@0 179 private:
michael@0 180 void InitButtonEvent(mozilla::WidgetMouseEvent& event,
michael@0 181 QMouseEvent* aEvent,
michael@0 182 int aClickCount = 1);
michael@0 183
michael@0 184 // event handling code
michael@0 185 nsEventStatus DispatchEvent(mozilla::WidgetGUIEvent* aEvent);
michael@0 186 void DispatchActivateEvent(void);
michael@0 187 void DispatchDeactivateEvent(void);
michael@0 188 void DispatchActivateEventOnTopLevelWindow(void);
michael@0 189 void DispatchDeactivateEventOnTopLevelWindow(void);
michael@0 190 void DispatchResizeEvent(nsIntRect &aRect, nsEventStatus &aStatus);
michael@0 191
michael@0 192 // Remember the last sizemode so that we can restore it when
michael@0 193 // leaving fullscreen
michael@0 194 nsSizeMode mLastSizeMode;
michael@0 195 // is this widget enabled?
michael@0 196 bool mEnabled;
michael@0 197
michael@0 198 // Call this function when the users activity is the direct cause of an
michael@0 199 // event (like a keypress or mouse click).
michael@0 200 void UserActivity();
michael@0 201 MozQWidget* createQWidget(MozQWidget* parent,
michael@0 202 nsWidgetInitData* aInitData);
michael@0 203
michael@0 204 public:
michael@0 205 // Old QtWidget only
michael@0 206 NS_IMETHOD SetParent(nsIWidget* aNewParent);
michael@0 207 virtual nsIWidget *GetParent(void);
michael@0 208 virtual float GetDPI();
michael@0 209 NS_IMETHOD SetModal(bool aModal);
michael@0 210 NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
michael@0 211 nsIWidget *aWidget,
michael@0 212 bool aActivate);
michael@0 213 NS_IMETHOD SetSizeMode(int32_t aMode);
michael@0 214 NS_IMETHOD GetScreenBounds(nsIntRect &aRect);
michael@0 215 NS_IMETHOD SetHasTransparentBackground(bool aTransparent);
michael@0 216 NS_IMETHOD GetHasTransparentBackground(bool& aTransparent);
michael@0 217 NS_IMETHOD HideWindowChrome(bool aShouldHide);
michael@0 218 NS_IMETHOD SetIcon(const nsAString& aIconSpec);
michael@0 219 NS_IMETHOD CaptureMouse(bool aCapture);
michael@0 220 NS_IMETHOD SetWindowClass(const nsAString& xulWinType);
michael@0 221 NS_IMETHOD GetAttention(int32_t aCycleCount);
michael@0 222 NS_IMETHOD_(bool) HasGLContext();
michael@0 223
michael@0 224 //
michael@0 225 // utility methods
michael@0 226 //
michael@0 227 void QWidgetDestroyed();
michael@0 228 // called when we are destroyed
michael@0 229 void OnDestroy(void);
michael@0 230 // called to check and see if a widget's dimensions are sane
michael@0 231 bool AreBoundsSane(void);
michael@0 232 private:
michael@0 233 // Is this a toplevel window?
michael@0 234 bool mIsTopLevel;
michael@0 235 // Has this widget been destroyed yet?
michael@0 236 bool mIsDestroyed;
michael@0 237 // This flag tracks if we're hidden or shown.
michael@0 238 bool mIsShown;
michael@0 239 // Has anyone set an x/y location for this widget yet? Toplevels
michael@0 240 // shouldn't be automatically set to 0,0 for first show.
michael@0 241 bool mPlaced;
michael@0 242 /**
michael@0 243 * Event handlers (proxied from the actual qwidget).
michael@0 244 * They follow normal Qt widget semantics.
michael@0 245 */
michael@0 246 void Initialize(MozQWidget *widget);
michael@0 247 virtual nsEventStatus OnCloseEvent(QCloseEvent *);
michael@0 248 void NativeResize(int32_t aWidth,
michael@0 249 int32_t aHeight,
michael@0 250 bool aRepaint);
michael@0 251 void NativeResize(int32_t aX,
michael@0 252 int32_t aY,
michael@0 253 int32_t aWidth,
michael@0 254 int32_t aHeight,
michael@0 255 bool aRepaint);
michael@0 256 void NativeShow (bool aAction);
michael@0 257
michael@0 258 private:
michael@0 259 typedef struct {
michael@0 260 QPointF pos;
michael@0 261 Qt::KeyboardModifiers modifiers;
michael@0 262 bool needDispatch;
michael@0 263 } MozCachedMoveEvent;
michael@0 264
michael@0 265 bool CheckForRollup(double aMouseX, double aMouseY, bool aIsWheel);
michael@0 266 void* SetupPluginPort(void);
michael@0 267 nsresult SetWindowIconList(const nsTArray<nsCString> &aIconList);
michael@0 268 void SetDefaultIcon(void);
michael@0 269
michael@0 270 nsEventStatus DispatchCommandEvent(nsIAtom* aCommand);
michael@0 271 nsEventStatus DispatchContentCommandEvent(int32_t aMsg);
michael@0 272 void SetSoftwareKeyboardState(bool aOpen, const InputContextAction& aAction);
michael@0 273 void ClearCachedResources();
michael@0 274
michael@0 275 uint32_t mActivatePending : 1;
michael@0 276 int32_t mSizeState;
michael@0 277
michael@0 278 bool mIsTransparent;
michael@0 279
michael@0 280 // all of our DND stuff
michael@0 281 // this is the last window that had a drag event happen on it.
michael@0 282 void InitDragEvent(mozilla::WidgetMouseEvent& aEvent);
michael@0 283
michael@0 284 // this is everything we need to be able to fire motion events
michael@0 285 // repeatedly
michael@0 286 uint32_t mKeyDownFlags[8];
michael@0 287
michael@0 288 /* Helper methods for DOM Key Down event suppression. */
michael@0 289 uint32_t* GetFlagWord32(uint32_t aKeyCode, uint32_t* aMask) {
michael@0 290 /* Mozilla DOM Virtual Key Code is from 0 to 224. */
michael@0 291 NS_ASSERTION((aKeyCode <= 0xFF), "Invalid DOM Key Code");
michael@0 292 aKeyCode &= 0xFF;
michael@0 293
michael@0 294 /* 32 = 2^5 = 0x20 */
michael@0 295 *aMask = uint32_t(1) << (aKeyCode & 0x1F);
michael@0 296 return &mKeyDownFlags[(aKeyCode >> 5)];
michael@0 297 }
michael@0 298
michael@0 299 bool IsKeyDown(uint32_t aKeyCode) {
michael@0 300 uint32_t mask;
michael@0 301 uint32_t* flag = GetFlagWord32(aKeyCode, &mask);
michael@0 302 return ((*flag) & mask) != 0;
michael@0 303 }
michael@0 304
michael@0 305 void SetKeyDownFlag(uint32_t aKeyCode) {
michael@0 306 uint32_t mask;
michael@0 307 uint32_t* flag = GetFlagWord32(aKeyCode, &mask);
michael@0 308 *flag |= mask;
michael@0 309 }
michael@0 310
michael@0 311 void ClearKeyDownFlag(uint32_t aKeyCode) {
michael@0 312 uint32_t mask;
michael@0 313 uint32_t* flag = GetFlagWord32(aKeyCode, &mask);
michael@0 314 *flag &= ~mask;
michael@0 315 }
michael@0 316 int32_t mQCursor;
michael@0 317
michael@0 318
michael@0 319 void ProcessMotionEvent();
michael@0 320
michael@0 321 void DispatchMotionToMainThread() {
michael@0 322 if (!mTimerStarted) {
michael@0 323 nsCOMPtr<nsIRunnable> event =
michael@0 324 NS_NewRunnableMethod(this, &nsWindow::ProcessMotionEvent);
michael@0 325 NS_DispatchToMainThread(event);
michael@0 326 mTimerStarted = true;
michael@0 327 }
michael@0 328 }
michael@0 329
michael@0 330 bool mNeedsResize;
michael@0 331 bool mNeedsMove;
michael@0 332 bool mListenForResizes;
michael@0 333 bool mNeedsShow;
michael@0 334 MozCachedMoveEvent mMoveEvent;
michael@0 335 bool mTimerStarted;
michael@0 336 };
michael@0 337
michael@0 338 }}
michael@0 339
michael@0 340 #endif /* __nsWindow_h__ */

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