The Tor Browser / annotate

widget/gtk/nsWindow.h@ac0c01689b40 (annotated)

widget/gtk/nsWindow.h

Thu, 15 Jan 2015 15:59:08 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 15 Jan 2015 15:59:08 +0100
branch
TOR_BUG_9701
changeset 10
ac0c01689b40
permissions
-rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
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 "mozilla/ipc/SharedMemorySysV.h"
michael@0 12
michael@0 13 #include "nsAutoPtr.h"
michael@0 14
michael@0 15 #include "mozcontainer.h"
michael@0 16 #include "nsWeakReference.h"
michael@0 17
michael@0 18 #include "nsIDragService.h"
michael@0 19 #include "nsITimer.h"
michael@0 20 #include "nsGkAtoms.h"
michael@0 21
michael@0 22 #include "nsBaseWidget.h"
michael@0 23 #include <gdk/gdk.h>
michael@0 24 #include <gtk/gtk.h>
michael@0 25
michael@0 26 #ifdef MOZ_X11
michael@0 27 #include <gdk/gdkx.h>
michael@0 28 #endif /* MOZ_X11 */
michael@0 29
michael@0 30 #ifdef ACCESSIBILITY
michael@0 31 #include "mozilla/a11y/Accessible.h"
michael@0 32 #endif
michael@0 33 #include "mozilla/EventForwards.h"
michael@0 34
michael@0 35 #include "nsGtkIMModule.h"
michael@0 36
michael@0 37 #undef LOG
michael@0 38 #ifdef MOZ_LOGGING
michael@0 39
michael@0 40 // make sure that logging is enabled before including prlog.h
michael@0 41 #define FORCE_PR_LOG
michael@0 42
michael@0 43 #include "prlog.h"
michael@0 44 #include "nsTArray.h"
michael@0 45
michael@0 46 extern PRLogModuleInfo *gWidgetLog;
michael@0 47 extern PRLogModuleInfo *gWidgetFocusLog;
michael@0 48 extern PRLogModuleInfo *gWidgetDragLog;
michael@0 49 extern PRLogModuleInfo *gWidgetDrawLog;
michael@0 50
michael@0 51 #define LOG(args) PR_LOG(gWidgetLog, 4, args)
michael@0 52 #define LOGFOCUS(args) PR_LOG(gWidgetFocusLog, 4, args)
michael@0 53 #define LOGDRAG(args) PR_LOG(gWidgetDragLog, 4, args)
michael@0 54 #define LOGDRAW(args) PR_LOG(gWidgetDrawLog, 4, 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 LOGDRAG(args)
michael@0 61 #define LOGDRAW(args)
michael@0 62
michael@0 63 #endif /* MOZ_LOGGING */
michael@0 64
michael@0 65 class gfxASurface;
michael@0 66 class gfxPattern;
michael@0 67 class nsDragService;
michael@0 68 #if defined(MOZ_X11) && defined(MOZ_HAVE_SHAREDMEMORYSYSV)
michael@0 69 # define MOZ_HAVE_SHMIMAGE
michael@0 70
michael@0 71 class nsShmImage;
michael@0 72 #endif
michael@0 73
michael@0 74 class nsWindow : public nsBaseWidget, public nsSupportsWeakReference
michael@0 75 {
michael@0 76 public:
michael@0 77 nsWindow();
michael@0 78 virtual ~nsWindow();
michael@0 79
michael@0 80 static void ReleaseGlobals();
michael@0 81
michael@0 82 NS_DECL_ISUPPORTS_INHERITED
michael@0 83
michael@0 84 void CommonCreate(nsIWidget *aParent, bool aListenForResizes);
michael@0 85
michael@0 86 virtual nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent,
michael@0 87 nsEventStatus& aStatus);
michael@0 88
michael@0 89 // called when we are destroyed
michael@0 90 void OnDestroy(void);
michael@0 91
michael@0 92 // called to check and see if a widget's dimensions are sane
michael@0 93 bool AreBoundsSane(void);
michael@0 94
michael@0 95 // nsIWidget
michael@0 96 NS_IMETHOD Create(nsIWidget *aParent,
michael@0 97 nsNativeWidget aNativeParent,
michael@0 98 const nsIntRect &aRect,
michael@0 99 nsDeviceContext *aContext,
michael@0 100 nsWidgetInitData *aInitData);
michael@0 101 NS_IMETHOD Destroy(void);
michael@0 102 virtual nsIWidget *GetParent();
michael@0 103 virtual float GetDPI();
michael@0 104 virtual nsresult SetParent(nsIWidget* aNewParent);
michael@0 105 NS_IMETHOD SetModal(bool aModal);
michael@0 106 virtual bool IsVisible() const;
michael@0 107 NS_IMETHOD ConstrainPosition(bool aAllowSlop,
michael@0 108 int32_t *aX,
michael@0 109 int32_t *aY);
michael@0 110 virtual void SetSizeConstraints(const SizeConstraints& aConstraints);
michael@0 111 NS_IMETHOD Move(double aX,
michael@0 112 double aY);
michael@0 113 NS_IMETHOD Show (bool aState);
michael@0 114 NS_IMETHOD Resize (double aWidth,
michael@0 115 double aHeight,
michael@0 116 bool aRepaint);
michael@0 117 NS_IMETHOD Resize (double aX,
michael@0 118 double aY,
michael@0 119 double aWidth,
michael@0 120 double aHeight,
michael@0 121 bool aRepaint);
michael@0 122 virtual bool IsEnabled() const;
michael@0 123
michael@0 124
michael@0 125 NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
michael@0 126 nsIWidget *aWidget,
michael@0 127 bool aActivate);
michael@0 128 void SetZIndex(int32_t aZIndex);
michael@0 129 NS_IMETHOD SetSizeMode(int32_t aMode);
michael@0 130 NS_IMETHOD Enable(bool aState);
michael@0 131 NS_IMETHOD SetFocus(bool aRaise = false);
michael@0 132 NS_IMETHOD GetScreenBounds(nsIntRect &aRect);
michael@0 133 NS_IMETHOD GetClientBounds(nsIntRect &aRect);
michael@0 134 virtual nsIntPoint GetClientOffset();
michael@0 135 NS_IMETHOD SetCursor(nsCursor aCursor);
michael@0 136 NS_IMETHOD SetCursor(imgIContainer* aCursor,
michael@0 137 uint32_t aHotspotX, uint32_t aHotspotY);
michael@0 138 NS_IMETHOD Invalidate(const nsIntRect &aRect);
michael@0 139 virtual void* GetNativeData(uint32_t aDataType);
michael@0 140 NS_IMETHOD SetTitle(const nsAString& aTitle);
michael@0 141 NS_IMETHOD SetIcon(const nsAString& aIconSpec);
michael@0 142 NS_IMETHOD SetWindowClass(const nsAString& xulWinType);
michael@0 143 virtual nsIntPoint WidgetToScreenOffset();
michael@0 144 NS_IMETHOD EnableDragDrop(bool aEnable);
michael@0 145 NS_IMETHOD CaptureMouse(bool aCapture);
michael@0 146 NS_IMETHOD CaptureRollupEvents(nsIRollupListener *aListener,
michael@0 147 bool aDoCapture);
michael@0 148 NS_IMETHOD GetAttention(int32_t aCycleCount);
michael@0 149
michael@0 150 virtual bool HasPendingInputEvent();
michael@0 151
michael@0 152 NS_IMETHOD MakeFullScreen(bool aFullScreen);
michael@0 153 NS_IMETHOD HideWindowChrome(bool aShouldHide);
michael@0 154
michael@0 155 /**
michael@0 156 * GetLastUserInputTime returns a timestamp for the most recent user input
michael@0 157 * event. This is intended for pointer grab requests (including drags).
michael@0 158 */
michael@0 159 static guint32 GetLastUserInputTime();
michael@0 160
michael@0 161 // utility method, -1 if no change should be made, otherwise returns a
michael@0 162 // value that can be passed to gdk_window_set_decorations
michael@0 163 gint ConvertBorderStyles(nsBorderStyle aStyle);
michael@0 164
michael@0 165 // event callbacks
michael@0 166 #if (MOZ_WIDGET_GTK == 2)
michael@0 167 gboolean OnExposeEvent(GdkEventExpose *aEvent);
michael@0 168 #else
michael@0 169 gboolean OnExposeEvent(cairo_t *cr);
michael@0 170 #endif
michael@0 171 gboolean OnConfigureEvent(GtkWidget *aWidget,
michael@0 172 GdkEventConfigure *aEvent);
michael@0 173 void OnContainerUnrealize();
michael@0 174 void OnSizeAllocate(GtkAllocation *aAllocation);
michael@0 175 void OnDeleteEvent();
michael@0 176 void OnEnterNotifyEvent(GdkEventCrossing *aEvent);
michael@0 177 void OnLeaveNotifyEvent(GdkEventCrossing *aEvent);
michael@0 178 void OnMotionNotifyEvent(GdkEventMotion *aEvent);
michael@0 179 void OnButtonPressEvent(GdkEventButton *aEvent);
michael@0 180 void OnButtonReleaseEvent(GdkEventButton *aEvent);
michael@0 181 void OnContainerFocusInEvent(GdkEventFocus *aEvent);
michael@0 182 void OnContainerFocusOutEvent(GdkEventFocus *aEvent);
michael@0 183 gboolean OnKeyPressEvent(GdkEventKey *aEvent);
michael@0 184 gboolean OnKeyReleaseEvent(GdkEventKey *aEvent);
michael@0 185 void OnScrollEvent(GdkEventScroll *aEvent);
michael@0 186 void OnVisibilityNotifyEvent(GdkEventVisibility *aEvent);
michael@0 187 void OnWindowStateEvent(GtkWidget *aWidget,
michael@0 188 GdkEventWindowState *aEvent);
michael@0 189 void OnDragDataReceivedEvent(GtkWidget *aWidget,
michael@0 190 GdkDragContext *aDragContext,
michael@0 191 gint aX,
michael@0 192 gint aY,
michael@0 193 GtkSelectionData*aSelectionData,
michael@0 194 guint aInfo,
michael@0 195 guint aTime,
michael@0 196 gpointer aData);
michael@0 197
michael@0 198 mozilla::TemporaryRef<mozilla::gfx::DrawTarget> StartRemoteDrawing() MOZ_OVERRIDE;
michael@0 199
michael@0 200 private:
michael@0 201 void UpdateAlpha(gfxPattern* aPattern, nsIntRect aBoundsRect);
michael@0 202
michael@0 203 void NativeResize(int32_t aWidth,
michael@0 204 int32_t aHeight,
michael@0 205 bool aRepaint);
michael@0 206
michael@0 207 void NativeResize(int32_t aX,
michael@0 208 int32_t aY,
michael@0 209 int32_t aWidth,
michael@0 210 int32_t aHeight,
michael@0 211 bool aRepaint);
michael@0 212
michael@0 213 void NativeShow (bool aAction);
michael@0 214 void SetHasMappedToplevel(bool aState);
michael@0 215 nsIntSize GetSafeWindowSize(nsIntSize aSize);
michael@0 216
michael@0 217 void EnsureGrabs (void);
michael@0 218 void GrabPointer (guint32 aTime);
michael@0 219 void ReleaseGrabs (void);
michael@0 220
michael@0 221 public:
michael@0 222 enum PluginType {
michael@0 223 PluginType_NONE = 0, /* do not have any plugin */
michael@0 224 PluginType_XEMBED, /* the plugin support xembed */
michael@0 225 PluginType_NONXEMBED /* the plugin does not support xembed */
michael@0 226 };
michael@0 227
michael@0 228 void SetPluginType(PluginType aPluginType);
michael@0 229 #ifdef MOZ_X11
michael@0 230 void SetNonXEmbedPluginFocus(void);
michael@0 231 void LoseNonXEmbedPluginFocus(void);
michael@0 232 #endif /* MOZ_X11 */
michael@0 233
michael@0 234 void ThemeChanged(void);
michael@0 235
michael@0 236 #ifdef MOZ_X11
michael@0 237 Window mOldFocusWindow;
michael@0 238 #endif /* MOZ_X11 */
michael@0 239
michael@0 240 static guint32 sLastButtonPressTime;
michael@0 241
michael@0 242 NS_IMETHOD BeginResizeDrag(mozilla::WidgetGUIEvent* aEvent,
michael@0 243 int32_t aHorizontal,
michael@0 244 int32_t aVertical);
michael@0 245 NS_IMETHOD BeginMoveDrag(mozilla::WidgetMouseEvent* aEvent);
michael@0 246
michael@0 247 MozContainer* GetMozContainer() { return mContainer; }
michael@0 248 // GetMozContainerWidget returns the MozContainer even for undestroyed
michael@0 249 // descendant windows
michael@0 250 GtkWidget* GetMozContainerWidget();
michael@0 251 GdkWindow* GetGdkWindow() { return mGdkWindow; }
michael@0 252 bool IsDestroyed() { return mIsDestroyed; }
michael@0 253
michael@0 254 void DispatchDragEvent(uint32_t aMsg,
michael@0 255 const nsIntPoint& aRefPoint,
michael@0 256 guint aTime);
michael@0 257 static void UpdateDragStatus (GdkDragContext *aDragContext,
michael@0 258 nsIDragService *aDragService);
michael@0 259 // If this dispatched the keydown event actually, this returns TRUE,
michael@0 260 // otherwise, FALSE.
michael@0 261 bool DispatchKeyDownEvent(GdkEventKey *aEvent,
michael@0 262 bool *aIsCancelled);
michael@0 263
michael@0 264 NS_IMETHOD NotifyIME(const IMENotification& aIMENotification) MOZ_OVERRIDE;
michael@0 265 NS_IMETHOD_(void) SetInputContext(const InputContext& aContext,
michael@0 266 const InputContextAction& aAction);
michael@0 267 NS_IMETHOD_(InputContext) GetInputContext();
michael@0 268 NS_IMETHOD_(bool) ExecuteNativeKeyBinding(
michael@0 269 NativeKeyBindingsType aType,
michael@0 270 const mozilla::WidgetKeyboardEvent& aEvent,
michael@0 271 DoCommandCallback aCallback,
michael@0 272 void* aCallbackData) MOZ_OVERRIDE;
michael@0 273 NS_IMETHOD GetToggledKeyState(uint32_t aKeyCode, bool* aLEDState);
michael@0 274
michael@0 275 // These methods are for toplevel windows only.
michael@0 276 void ResizeTransparencyBitmap();
michael@0 277 void ApplyTransparencyBitmap();
michael@0 278 void ClearTransparencyBitmap();
michael@0 279
michael@0 280 virtual void SetTransparencyMode(nsTransparencyMode aMode);
michael@0 281 virtual nsTransparencyMode GetTransparencyMode();
michael@0 282 virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations);
michael@0 283 nsresult UpdateTranslucentWindowAlphaInternal(const nsIntRect& aRect,
michael@0 284 uint8_t* aAlphas, int32_t aStride);
michael@0 285
michael@0 286 #if (MOZ_WIDGET_GTK == 2)
michael@0 287 gfxASurface *GetThebesSurface();
michael@0 288
michael@0 289 static already_AddRefed<gfxASurface> GetSurfaceForGdkDrawable(GdkDrawable* aDrawable,
michael@0 290 const nsIntSize& aSize);
michael@0 291 #else
michael@0 292 gfxASurface *GetThebesSurface(cairo_t *cr);
michael@0 293 #endif
michael@0 294 NS_IMETHOD ReparentNativeWidget(nsIWidget* aNewParent);
michael@0 295
michael@0 296 virtual nsresult SynthesizeNativeMouseEvent(nsIntPoint aPoint,
michael@0 297 uint32_t aNativeMessage,
michael@0 298 uint32_t aModifierFlags);
michael@0 299
michael@0 300 virtual nsresult SynthesizeNativeMouseMove(nsIntPoint aPoint)
michael@0 301 { return SynthesizeNativeMouseEvent(aPoint, GDK_MOTION_NOTIFY, 0); }
michael@0 302
michael@0 303 protected:
michael@0 304 // event handling code
michael@0 305 void DispatchActivateEvent(void);
michael@0 306 void DispatchDeactivateEvent(void);
michael@0 307 void DispatchResized(int32_t aWidth, int32_t aHeight);
michael@0 308
michael@0 309 // Helper for SetParent and ReparentNativeWidget.
michael@0 310 void ReparentNativeWidgetInternal(nsIWidget* aNewParent,
michael@0 311 GtkWidget* aNewContainer,
michael@0 312 GdkWindow* aNewParentWindow,
michael@0 313 GtkWidget* aOldContainer);
michael@0 314 nsCOMPtr<nsIWidget> mParent;
michael@0 315 // Is this a toplevel window?
michael@0 316 bool mIsTopLevel;
michael@0 317 // Has this widget been destroyed yet?
michael@0 318 bool mIsDestroyed;
michael@0 319
michael@0 320 // This is a flag that tracks if we need to resize a widget or
michael@0 321 // window when we show it.
michael@0 322 bool mNeedsResize;
michael@0 323 // This is a flag that tracks if we need to move a widget or
michael@0 324 // window when we show it.
michael@0 325 bool mNeedsMove;
michael@0 326 // Should we send resize events on all resizes?
michael@0 327 bool mListenForResizes;
michael@0 328 // This flag tracks if we're hidden or shown.
michael@0 329 bool mIsShown;
michael@0 330 bool mNeedsShow;
michael@0 331 // is this widget enabled?
michael@0 332 bool mEnabled;
michael@0 333 // has the native window for this been created yet?
michael@0 334 bool mCreated;
michael@0 335
michael@0 336 private:
michael@0 337 void DestroyChildWindows();
michael@0 338 GtkWidget *GetToplevelWidget();
michael@0 339 nsWindow *GetContainerWindow();
michael@0 340 void SetUrgencyHint(GtkWidget *top_window, bool state);
michael@0 341 void *SetupPluginPort(void);
michael@0 342 void SetDefaultIcon(void);
michael@0 343 void InitButtonEvent(mozilla::WidgetMouseEvent& aEvent,
michael@0 344 GdkEventButton* aGdkEvent);
michael@0 345 bool DispatchCommandEvent(nsIAtom* aCommand);
michael@0 346 bool DispatchContentCommandEvent(int32_t aMsg);
michael@0 347 void SetWindowClipRegion(const nsTArray<nsIntRect>& aRects,
michael@0 348 bool aIntersectWithExisting);
michael@0 349 bool CheckForRollup(gdouble aMouseX, gdouble aMouseY,
michael@0 350 bool aIsWheel, bool aAlwaysRollup);
michael@0 351 bool GetDragInfo(mozilla::WidgetMouseEvent* aMouseEvent,
michael@0 352 GdkWindow** aWindow, gint* aButton,
michael@0 353 gint* aRootX, gint* aRootY);
michael@0 354 void ClearCachedResources();
michael@0 355
michael@0 356 GtkWidget *mShell;
michael@0 357 MozContainer *mContainer;
michael@0 358 GdkWindow *mGdkWindow;
michael@0 359
michael@0 360 uint32_t mHasMappedToplevel : 1,
michael@0 361 mIsFullyObscured : 1,
michael@0 362 mRetryPointerGrab : 1;
michael@0 363 nsSizeMode mSizeState;
michael@0 364 PluginType mPluginType;
michael@0 365
michael@0 366 int32_t mTransparencyBitmapWidth;
michael@0 367 int32_t mTransparencyBitmapHeight;
michael@0 368
michael@0 369 #ifdef MOZ_HAVE_SHMIMAGE
michael@0 370 // If we're using xshm rendering, mThebesSurface wraps mShmImage
michael@0 371 nsRefPtr<nsShmImage> mShmImage;
michael@0 372 #endif
michael@0 373 nsRefPtr<gfxASurface> mThebesSurface;
michael@0 374
michael@0 375 #ifdef ACCESSIBILITY
michael@0 376 nsRefPtr<mozilla::a11y::Accessible> mRootAccessible;
michael@0 377
michael@0 378 /**
michael@0 379 * Request to create the accessible for this window if it is top level.
michael@0 380 */
michael@0 381 void CreateRootAccessible();
michael@0 382
michael@0 383 /**
michael@0 384 * Dispatch accessible event for the top level window accessible.
michael@0 385 *
michael@0 386 * @param aEventType [in] the accessible event type to dispatch
michael@0 387 */
michael@0 388 void DispatchEventToRootAccessible(uint32_t aEventType);
michael@0 389
michael@0 390 /**
michael@0 391 * Dispatch accessible window activate event for the top level window
michael@0 392 * accessible.
michael@0 393 */
michael@0 394 void DispatchActivateEventAccessible();
michael@0 395
michael@0 396 /**
michael@0 397 * Dispatch accessible window deactivate event for the top level window
michael@0 398 * accessible.
michael@0 399 */
michael@0 400 void DispatchDeactivateEventAccessible();
michael@0 401
michael@0 402 /**
michael@0 403 * Dispatch accessible window maximize event for the top level window
michael@0 404 * accessible.
michael@0 405 */
michael@0 406 void DispatchMaximizeEventAccessible();
michael@0 407
michael@0 408 /**
michael@0 409 * Dispatch accessible window minize event for the top level window
michael@0 410 * accessible.
michael@0 411 */
michael@0 412 void DispatchMinimizeEventAccessible();
michael@0 413
michael@0 414 /**
michael@0 415 * Dispatch accessible window restore event for the top level window
michael@0 416 * accessible.
michael@0 417 */
michael@0 418 void DispatchRestoreEventAccessible();
michael@0 419 #endif
michael@0 420
michael@0 421 // The cursor cache
michael@0 422 static GdkCursor *gsGtkCursorCache[eCursorCount];
michael@0 423
michael@0 424 // Transparency
michael@0 425 bool mIsTransparent;
michael@0 426 // This bitmap tracks which pixels are transparent. We don't support
michael@0 427 // full translucency at this time; each pixel is either fully opaque
michael@0 428 // or fully transparent.
michael@0 429 gchar* mTransparencyBitmap;
michael@0 430
michael@0 431 // all of our DND stuff
michael@0 432 void InitDragEvent(mozilla::WidgetDragEvent& aEvent);
michael@0 433
michael@0 434 float mLastMotionPressure;
michael@0 435
michael@0 436 // Remember the last sizemode so that we can restore it when
michael@0 437 // leaving fullscreen
michael@0 438 nsSizeMode mLastSizeMode;
michael@0 439
michael@0 440 static bool DragInProgress(void);
michael@0 441
michael@0 442 void DispatchMissedButtonReleases(GdkEventCrossing *aGdkEvent);
michael@0 443
michael@0 444 // nsBaseWidget
michael@0 445 virtual LayerManager* GetLayerManager(PLayerTransactionChild* aShadowManager = nullptr,
michael@0 446 LayersBackend aBackendHint = mozilla::layers::LayersBackend::LAYERS_NONE,
michael@0 447 LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT,
michael@0 448 bool* aAllowRetaining = nullptr) MOZ_OVERRIDE;
michael@0 449
michael@0 450 void CleanLayerManagerRecursive();
michael@0 451
michael@0 452 /**
michael@0 453 * |mIMModule| takes all IME related stuff.
michael@0 454 *
michael@0 455 * This is owned by the top-level nsWindow or the topmost child
michael@0 456 * nsWindow embedded in a non-Gecko widget.
michael@0 457 *
michael@0 458 * The instance is created when the top level widget is created. And when
michael@0 459 * the widget is destroyed, it's released. All child windows refer its
michael@0 460 * ancestor widget's instance. So, one set of IM contexts is created for
michael@0 461 * all windows in a hierarchy. If the children are released after the top
michael@0 462 * level window is released, the children still have a valid pointer,
michael@0 463 * however, IME doesn't work at that time.
michael@0 464 */
michael@0 465 nsRefPtr<nsGtkIMModule> mIMModule;
michael@0 466 };
michael@0 467
michael@0 468 class nsChildWindow : public nsWindow {
michael@0 469 public:
michael@0 470 nsChildWindow();
michael@0 471 ~nsChildWindow();
michael@0 472 };
michael@0 473
michael@0 474 #endif /* __nsWindow_h__ */

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