forked from mirrors/gecko-dev
		
	 34508b32f6
			
		
	
	
		34508b32f6
		
	
	
	
	
		
			
			MozReview-Commit-ID: Bg60bD8jIg6 --HG-- extra : rebase_source : cc8bd5796096f49ad4fdab81885a426afd6117e4
		
			
				
	
	
		
			3421 lines
		
	
	
	
		
			112 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			3421 lines
		
	
	
	
		
			112 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| 
 | |
| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| /* vim: set ts=8 sts=2 et sw=2 tw=80: */
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| /* This Source Code Form is subject to the terms of the Mozilla Public
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|  * License, v. 2.0. If a copy of the MPL was not distributed with this
 | |
|  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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| 
 | |
| #include "mozilla/ArrayUtils.h"
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| #include "mozilla/UniquePtr.h"
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| #include "mozilla/TextEventDispatcher.h"
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| #include "mozilla/TextEventDispatcherListener.h"
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| 
 | |
| #include "mozilla/layers/CompositorBridgeChild.h"
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| #include "mozilla/layers/CompositorBridgeParent.h"
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| #include "mozilla/layers/PLayerTransactionChild.h"
 | |
| #include "mozilla/layers/ImageBridgeChild.h"
 | |
| #include "LiveResizeListener.h"
 | |
| #include "nsBaseWidget.h"
 | |
| #include "nsDeviceContext.h"
 | |
| #include "nsCOMPtr.h"
 | |
| #include "nsGfxCIID.h"
 | |
| #include "nsWidgetsCID.h"
 | |
| #include "nsServiceManagerUtils.h"
 | |
| #include "nsIKeyEventInPluginCallback.h"
 | |
| #include "nsIScreenManager.h"
 | |
| #include "nsAppDirectoryServiceDefs.h"
 | |
| #include "nsISimpleEnumerator.h"
 | |
| #include "nsIContent.h"
 | |
| #include "nsIDocument.h"
 | |
| #include "nsIPresShell.h"
 | |
| #include "nsIServiceManager.h"
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| #include "mozilla/Preferences.h"
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| #include "BasicLayers.h"
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| #include "ClientLayerManager.h"
 | |
| #include "mozilla/layers/Compositor.h"
 | |
| #include "nsIXULRuntime.h"
 | |
| #include "nsIXULWindow.h"
 | |
| #include "nsIBaseWindow.h"
 | |
| #include "nsXULPopupManager.h"
 | |
| #include "nsXBLWindowKeyHandler.h"
 | |
| #include "nsIWidgetListener.h"
 | |
| #include "nsIGfxInfo.h"
 | |
| #include "npapi.h"
 | |
| #include "X11UndefineNone.h"
 | |
| #include "base/thread.h"
 | |
| #include "prdtoa.h"
 | |
| #include "prenv.h"
 | |
| #include "mozilla/Attributes.h"
 | |
| #include "mozilla/Unused.h"
 | |
| #include "nsContentUtils.h"
 | |
| #include "gfxPrefs.h"
 | |
| #include "mozilla/gfx/2D.h"
 | |
| #include "mozilla/MouseEvents.h"
 | |
| #include "GLConsts.h"
 | |
| #include "mozilla/Unused.h"
 | |
| #include "mozilla/IMEStateManager.h"
 | |
| #include "mozilla/VsyncDispatcher.h"
 | |
| #include "mozilla/layers/IAPZCTreeManager.h"
 | |
| #include "mozilla/layers/APZEventState.h"
 | |
| #include "mozilla/layers/APZThreadUtils.h"
 | |
| #include "mozilla/layers/ChromeProcessController.h"
 | |
| #include "mozilla/layers/CompositorOptions.h"
 | |
| #include "mozilla/layers/InputAPZContext.h"
 | |
| #include "mozilla/layers/APZCCallbackHelper.h"
 | |
| #include "mozilla/layers/WebRenderLayerManager.h"
 | |
| #include "mozilla/dom/ContentChild.h"
 | |
| #include "mozilla/dom/TabParent.h"
 | |
| #include "mozilla/gfx/GPUProcessManager.h"
 | |
| #include "mozilla/gfx/gfxVars.h"
 | |
| #include "mozilla/Move.h"
 | |
| #include "mozilla/Services.h"
 | |
| #include "mozilla/Sprintf.h"
 | |
| #include "mozilla/webrender/WebRenderTypes.h"
 | |
| #include "nsRefPtrHashtable.h"
 | |
| #include "TouchEvents.h"
 | |
| #include "WritingModes.h"
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| #include "InputData.h"
 | |
| #include "FrameLayerBuilder.h"
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| #ifdef ACCESSIBILITY
 | |
| #include "nsAccessibilityService.h"
 | |
| #endif
 | |
| #include "gfxConfig.h"
 | |
| #include "mozilla/layers/CompositorSession.h"
 | |
| #include "VRManagerChild.h"
 | |
| #include "gfxConfig.h"
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| 
 | |
| #ifdef DEBUG
 | |
| #include "nsIObserver.h"
 | |
| 
 | |
| static void debug_RegisterPrefCallbacks();
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| 
 | |
| #endif
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| 
 | |
| #ifdef NOISY_WIDGET_LEAKS
 | |
| static int32_t gNumWidgets;
 | |
| #endif
 | |
| 
 | |
| #ifdef XP_MACOSX
 | |
| #include "nsCocoaFeatures.h"
 | |
| #endif
 | |
| 
 | |
| #if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
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| static nsRefPtrHashtable<nsVoidPtrHashKey, nsIWidget>* sPluginWidgetList;
 | |
| #endif
 | |
| 
 | |
| nsIRollupListener* nsBaseWidget::gRollupListener = nullptr;
 | |
| 
 | |
| using namespace mozilla::dom;
 | |
| using namespace mozilla::layers;
 | |
| using namespace mozilla::ipc;
 | |
| using namespace mozilla::widget;
 | |
| using namespace mozilla;
 | |
| using base::Thread;
 | |
| 
 | |
| // Global user preference for disabling native theme. Used
 | |
| // in NativeWindowTheme.
 | |
| bool            gDisableNativeTheme               = false;
 | |
| 
 | |
| // Async pump timer during injected long touch taps
 | |
| #define TOUCH_INJECT_PUMP_TIMER_MSEC 50
 | |
| #define TOUCH_INJECT_LONG_TAP_DEFAULT_MSEC 1500
 | |
| int32_t nsIWidget::sPointerIdCounter = 0;
 | |
| 
 | |
| // Some statics from nsIWidget.h
 | |
| /*static*/ uint64_t AutoObserverNotifier::sObserverId = 0;
 | |
| /*static*/ nsDataHashtable<nsUint64HashKey, nsCOMPtr<nsIObserver>> AutoObserverNotifier::sSavedObservers;
 | |
| 
 | |
| // The maximum amount of time to let the EnableDragDrop runnable wait in the
 | |
| // idle queue before timing out and moving it to the regular queue. Value is in
 | |
| // milliseconds.
 | |
| const uint32_t kAsyncDragDropTimeout = 1000;
 | |
| 
 | |
| namespace mozilla {
 | |
| namespace widget {
 | |
| 
 | |
| void
 | |
| IMENotification::SelectionChangeDataBase::SetWritingMode(
 | |
|                                         const WritingMode& aWritingMode)
 | |
| {
 | |
|   mWritingMode = aWritingMode.mWritingMode;
 | |
| }
 | |
| 
 | |
| WritingMode
 | |
| IMENotification::SelectionChangeDataBase::GetWritingMode() const
 | |
| {
 | |
|   return WritingMode(mWritingMode);
 | |
| }
 | |
| 
 | |
| } // namespace widget
 | |
| } // namespace mozilla
 | |
| 
 | |
| NS_IMPL_ISUPPORTS(nsBaseWidget, nsIWidget, nsISupportsWeakReference)
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // nsBaseWidget constructor
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| 
 | |
| nsBaseWidget::nsBaseWidget()
 | |
| : mWidgetListener(nullptr)
 | |
| , mAttachedWidgetListener(nullptr)
 | |
| , mPreviouslyAttachedWidgetListener(nullptr)
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| , mLayerManager(nullptr)
 | |
| , mCompositorVsyncDispatcher(nullptr)
 | |
| , mCursor(eCursor_standard)
 | |
| , mBorderStyle(eBorderStyle_none)
 | |
| , mBounds(0,0,0,0)
 | |
| , mOriginalBounds(nullptr)
 | |
| , mClipRectCount(0)
 | |
| , mSizeMode(nsSizeMode_Normal)
 | |
| , mPopupLevel(ePopupLevelTop)
 | |
| , mPopupType(ePopupTypeAny)
 | |
| , mHasRemoteContent(false)
 | |
| , mUpdateCursor(true)
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| , mUseAttachedEvents(false)
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| , mIMEHasFocus(false)
 | |
| , mIsFullyOccluded(false)
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| {
 | |
| #ifdef NOISY_WIDGET_LEAKS
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|   gNumWidgets++;
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|   printf("WIDGETS+ = %d\n", gNumWidgets);
 | |
| #endif
 | |
| 
 | |
| #ifdef DEBUG
 | |
|   debug_RegisterPrefCallbacks();
 | |
| #endif
 | |
| 
 | |
| #if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
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|   if (!sPluginWidgetList) {
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|     sPluginWidgetList = new nsRefPtrHashtable<nsVoidPtrHashKey, nsIWidget>();
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|   }
 | |
| #endif
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|   mShutdownObserver = new WidgetShutdownObserver(this);
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| }
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| 
 | |
| NS_IMPL_ISUPPORTS(WidgetShutdownObserver, nsIObserver)
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| 
 | |
| WidgetShutdownObserver::WidgetShutdownObserver(nsBaseWidget* aWidget) :
 | |
|   mWidget(aWidget),
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|   mRegistered(false)
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| {
 | |
|   Register();
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| }
 | |
| 
 | |
| WidgetShutdownObserver::~WidgetShutdownObserver()
 | |
| {
 | |
|   // No need to call Unregister(), we can't be destroyed until nsBaseWidget
 | |
|   // gets torn down. The observer service and nsBaseWidget have a ref on us
 | |
|   // so nsBaseWidget has to call Unregister and then clear its ref.
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| }
 | |
| 
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| NS_IMETHODIMP
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| WidgetShutdownObserver::Observe(nsISupports *aSubject,
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|                                 const char *aTopic,
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|                                 const char16_t *aData)
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| {
 | |
|   if (mWidget && !strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
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|     RefPtr<nsBaseWidget> widget(mWidget);
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|     widget->Shutdown();
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|   }
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| void
 | |
| WidgetShutdownObserver::Register()
 | |
| {
 | |
|   if (!mRegistered) {
 | |
|     mRegistered = true;
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|     nsContentUtils::RegisterShutdownObserver(this);
 | |
|   }
 | |
| }
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| 
 | |
| void
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| WidgetShutdownObserver::Unregister()
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| {
 | |
|   if (mRegistered) {
 | |
|     mWidget = nullptr;
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|     nsContentUtils::UnregisterShutdownObserver(this);
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|     mRegistered = false;
 | |
|   }
 | |
| }
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| 
 | |
| void
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| nsBaseWidget::Shutdown()
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| {
 | |
|   NotifyLiveResizeStopped();
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|   RevokeTransactionIdAllocator();
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|   DestroyCompositor();
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|   FreeShutdownObserver();
 | |
| #if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
 | |
|   if (sPluginWidgetList) {
 | |
|     delete sPluginWidgetList;
 | |
|     sPluginWidgetList = nullptr;
 | |
|   }
 | |
| #endif
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::DestroyCompositor()
 | |
| {
 | |
|   // We release this before releasing the compositor, since it may hold the
 | |
|   // last reference to our ClientLayerManager. ClientLayerManager's dtor can
 | |
|   // trigger a paint, creating a new compositor, and we don't want to re-use
 | |
|   // the old vsync dispatcher.
 | |
|   if (mCompositorVsyncDispatcher) {
 | |
|     mCompositorVsyncDispatcher->Shutdown();
 | |
|     mCompositorVsyncDispatcher = nullptr;
 | |
|   }
 | |
| 
 | |
|   // The compositor shutdown sequence looks like this:
 | |
|   //  1. CompositorSession calls CompositorBridgeChild::Destroy.
 | |
|   //  2. CompositorBridgeChild synchronously sends WillClose.
 | |
|   //  3. CompositorBridgeParent releases some resources (such as the layer
 | |
|   //     manager, compositor, and widget).
 | |
|   //  4. CompositorBridgeChild::Destroy returns.
 | |
|   //  5. Asynchronously, CompositorBridgeParent::ActorDestroy will fire on the
 | |
|   //     compositor thread when the I/O thread closes the IPC channel.
 | |
|   //  6. Step 5 will schedule DeferredDestroy on the compositor thread, which
 | |
|   //     releases the reference CompositorBridgeParent holds to itself.
 | |
|   //
 | |
|   // When CompositorSession::Shutdown returns, we assume the compositor is gone
 | |
|   // or will be gone very soon.
 | |
|   if (mCompositorSession) {
 | |
|     ReleaseContentController();
 | |
|     mAPZC = nullptr;
 | |
|     SetCompositorWidgetDelegate(nullptr);
 | |
|     mCompositorBridgeChild = nullptr;
 | |
| 
 | |
|     // XXX CompositorBridgeChild and CompositorBridgeParent might be re-created in
 | |
|     // ClientLayerManager destructor. See bug 1133426.
 | |
|     RefPtr<CompositorSession> session = mCompositorSession.forget();
 | |
|     session->Shutdown();
 | |
|   }
 | |
| }
 | |
| 
 | |
| // This prevents the layer manager from starting a new transaction during
 | |
| // shutdown.
 | |
| void
 | |
| nsBaseWidget::RevokeTransactionIdAllocator()
 | |
| {
 | |
|   if (!mLayerManager) {
 | |
|     return;
 | |
|   }
 | |
|   mLayerManager->SetTransactionIdAllocator(nullptr);
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::ReleaseContentController()
 | |
| {
 | |
|   if (mRootContentController) {
 | |
|     mRootContentController->Destroy();
 | |
|     mRootContentController = nullptr;
 | |
|   }
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::DestroyLayerManager()
 | |
| {
 | |
|   if (mLayerManager) {
 | |
|     mLayerManager->Destroy();
 | |
|     mLayerManager = nullptr;
 | |
|   }
 | |
|   DestroyCompositor();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::OnRenderingDeviceReset()
 | |
| {
 | |
|   DestroyLayerManager();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::FreeShutdownObserver()
 | |
| {
 | |
|   if (mShutdownObserver) {
 | |
|     mShutdownObserver->Unregister();
 | |
|   }
 | |
|   mShutdownObserver = nullptr;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // nsBaseWidget destructor
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| 
 | |
| nsBaseWidget::~nsBaseWidget()
 | |
| {
 | |
|   IMEStateManager::WidgetDestroyed(this);
 | |
| 
 | |
|   if (mLayerManager) {
 | |
|     if (BasicLayerManager* mgr = mLayerManager->AsBasicLayerManager()) {
 | |
|       mgr->ClearRetainerWidget();
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   FreeShutdownObserver();
 | |
|   RevokeTransactionIdAllocator();
 | |
|   DestroyLayerManager();
 | |
| 
 | |
| #ifdef NOISY_WIDGET_LEAKS
 | |
|   gNumWidgets--;
 | |
|   printf("WIDGETS- = %d\n", gNumWidgets);
 | |
| #endif
 | |
| 
 | |
|   delete mOriginalBounds;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Basic create.
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void nsBaseWidget::BaseCreate(nsIWidget* aParent,
 | |
|                               nsWidgetInitData* aInitData)
 | |
| {
 | |
|   static bool gDisableNativeThemeCached = false;
 | |
|   if (!gDisableNativeThemeCached) {
 | |
|     Preferences::AddBoolVarCache(&gDisableNativeTheme,
 | |
|                                  "mozilla.widget.disable-native-theme",
 | |
|                                  gDisableNativeTheme);
 | |
|     gDisableNativeThemeCached = true;
 | |
|   }
 | |
| 
 | |
|   // keep a reference to the device context
 | |
|   if (nullptr != aInitData) {
 | |
|     mWindowType = aInitData->mWindowType;
 | |
|     mBorderStyle = aInitData->mBorderStyle;
 | |
|     mPopupLevel = aInitData->mPopupLevel;
 | |
|     mPopupType = aInitData->mPopupHint;
 | |
|     mHasRemoteContent = aInitData->mHasRemoteContent;
 | |
|   }
 | |
| 
 | |
|   if (aParent) {
 | |
|     aParent->AddChild(this);
 | |
|   }
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Accessor functions to get/set the client data
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| 
 | |
| nsIWidgetListener* nsBaseWidget::GetWidgetListener()
 | |
| {
 | |
|   return mWidgetListener;
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::SetWidgetListener(nsIWidgetListener* aWidgetListener)
 | |
| {
 | |
|   mWidgetListener = aWidgetListener;
 | |
| }
 | |
| 
 | |
| already_AddRefed<nsIWidget>
 | |
| nsBaseWidget::CreateChild(const LayoutDeviceIntRect& aRect,
 | |
|                           nsWidgetInitData* aInitData,
 | |
|                           bool aForceUseIWidgetParent)
 | |
| {
 | |
|   nsIWidget* parent = this;
 | |
|   nsNativeWidget nativeParent = nullptr;
 | |
| 
 | |
|   if (!aForceUseIWidgetParent) {
 | |
|     // Use only either parent or nativeParent, not both, to match
 | |
|     // existing code.  Eventually Create() should be divested of its
 | |
|     // nativeWidget parameter.
 | |
|     nativeParent = parent ? parent->GetNativeData(NS_NATIVE_WIDGET) : nullptr;
 | |
|     parent = nativeParent ? nullptr : parent;
 | |
|     MOZ_ASSERT(!parent || !nativeParent, "messed up logic");
 | |
|   }
 | |
| 
 | |
|   nsCOMPtr<nsIWidget> widget;
 | |
|   if (aInitData && aInitData->mWindowType == eWindowType_popup) {
 | |
|     widget = AllocateChildPopupWidget();
 | |
|   } else {
 | |
|     static NS_DEFINE_IID(kCChildCID, NS_CHILD_CID);
 | |
|     widget = do_CreateInstance(kCChildCID);
 | |
|   }
 | |
| 
 | |
|   if (widget &&
 | |
|       NS_SUCCEEDED(widget->Create(parent, nativeParent, aRect, aInitData))) {
 | |
|     return widget.forget();
 | |
|   }
 | |
| 
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| // Attach a view to our widget which we'll send events to.
 | |
| void
 | |
| nsBaseWidget::AttachViewToTopLevel(bool aUseAttachedEvents)
 | |
| {
 | |
|   NS_ASSERTION((mWindowType == eWindowType_toplevel ||
 | |
|                 mWindowType == eWindowType_dialog ||
 | |
|                 mWindowType == eWindowType_invisible ||
 | |
|                 mWindowType == eWindowType_child),
 | |
|                "Can't attach to window of that type");
 | |
| 
 | |
|   mUseAttachedEvents = aUseAttachedEvents;
 | |
| }
 | |
| 
 | |
| nsIWidgetListener* nsBaseWidget::GetAttachedWidgetListener()
 | |
|  {
 | |
|    return mAttachedWidgetListener;
 | |
|  }
 | |
| 
 | |
| nsIWidgetListener* nsBaseWidget::GetPreviouslyAttachedWidgetListener()
 | |
|  {
 | |
|    return mPreviouslyAttachedWidgetListener;
 | |
|  }
 | |
| 
 | |
| void nsBaseWidget::SetPreviouslyAttachedWidgetListener(nsIWidgetListener* aListener)
 | |
|  {
 | |
|    mPreviouslyAttachedWidgetListener = aListener;
 | |
|  }
 | |
| 
 | |
| void nsBaseWidget::SetAttachedWidgetListener(nsIWidgetListener* aListener)
 | |
|  {
 | |
|    mAttachedWidgetListener = aListener;
 | |
|  }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Close this nsBaseWidget
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void nsBaseWidget::Destroy()
 | |
| {
 | |
|   // Just in case our parent is the only ref to us
 | |
|   nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
 | |
|   // disconnect from the parent
 | |
|   nsIWidget *parent = GetParent();
 | |
|   if (parent) {
 | |
|     parent->RemoveChild(this);
 | |
|   }
 | |
| 
 | |
| #if defined(XP_WIN)
 | |
|   // Allow our scroll capture container to be cleaned up, if we have one.
 | |
|   mScrollCaptureContainer = nullptr;
 | |
| #endif
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Get this nsBaseWidget parent
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| nsIWidget* nsBaseWidget::GetParent(void)
 | |
| {
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Get this nsBaseWidget top level widget
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| nsIWidget* nsBaseWidget::GetTopLevelWidget()
 | |
| {
 | |
|   nsIWidget *topLevelWidget = nullptr, *widget = this;
 | |
|   while (widget) {
 | |
|     topLevelWidget = widget;
 | |
|     widget = widget->GetParent();
 | |
|   }
 | |
|   return topLevelWidget;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Get this nsBaseWidget's top (non-sheet) parent (if it's a sheet)
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| nsIWidget* nsBaseWidget::GetSheetWindowParent(void)
 | |
| {
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| float nsBaseWidget::GetDPI()
 | |
| {
 | |
|   return 96.0f;
 | |
| }
 | |
| 
 | |
| CSSToLayoutDeviceScale nsIWidget::GetDefaultScale()
 | |
| {
 | |
|   double devPixelsPerCSSPixel = DefaultScaleOverride();
 | |
| 
 | |
|   if (devPixelsPerCSSPixel <= 0.0) {
 | |
|     devPixelsPerCSSPixel = GetDefaultScaleInternal();
 | |
|   }
 | |
| 
 | |
|   return CSSToLayoutDeviceScale(devPixelsPerCSSPixel);
 | |
| }
 | |
| 
 | |
| /* static */
 | |
| double nsIWidget::DefaultScaleOverride()
 | |
| {
 | |
|   // The number of device pixels per CSS pixel. A value <= 0 means choose
 | |
|   // automatically based on the DPI. A positive value is used as-is. This effectively
 | |
|   // controls the size of a CSS "px".
 | |
|   static float devPixelsPerCSSPixel = -1.0f;
 | |
| 
 | |
|   static bool valueCached = false;
 | |
|   if (!valueCached) {
 | |
|     Preferences::AddFloatVarCache(&devPixelsPerCSSPixel,
 | |
|                                   "layout.css.devPixelsPerPx", -1.0f);
 | |
|     valueCached = true;
 | |
|   }
 | |
| 
 | |
|   return devPixelsPerCSSPixel;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Add a child to the list of children
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void nsBaseWidget::AddChild(nsIWidget* aChild)
 | |
| {
 | |
|   MOZ_ASSERT(!aChild->GetNextSibling() && !aChild->GetPrevSibling(),
 | |
|              "aChild not properly removed from its old child list");
 | |
| 
 | |
|   if (!mFirstChild) {
 | |
|     mFirstChild = mLastChild = aChild;
 | |
|   } else {
 | |
|     // append to the list
 | |
|     MOZ_ASSERT(mLastChild);
 | |
|     MOZ_ASSERT(!mLastChild->GetNextSibling());
 | |
|     mLastChild->SetNextSibling(aChild);
 | |
|     aChild->SetPrevSibling(mLastChild);
 | |
|     mLastChild = aChild;
 | |
|   }
 | |
| }
 | |
| 
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Remove a child from the list of children
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void nsBaseWidget::RemoveChild(nsIWidget* aChild)
 | |
| {
 | |
| #ifdef DEBUG
 | |
| #ifdef XP_MACOSX
 | |
|   // nsCocoaWindow doesn't implement GetParent, so in that case parent will be
 | |
|   // null and we'll just have to do without this assertion.
 | |
|   nsIWidget* parent = aChild->GetParent();
 | |
|   NS_ASSERTION(!parent || parent == this, "Not one of our kids!");
 | |
| #else
 | |
|   MOZ_RELEASE_ASSERT(aChild->GetParent() == this, "Not one of our kids!");
 | |
| #endif
 | |
| #endif
 | |
| 
 | |
|   if (mLastChild == aChild) {
 | |
|     mLastChild = mLastChild->GetPrevSibling();
 | |
|   }
 | |
|   if (mFirstChild == aChild) {
 | |
|     mFirstChild = mFirstChild->GetNextSibling();
 | |
|   }
 | |
| 
 | |
|   // Now remove from the list.  Make sure that we pass ownership of the tail
 | |
|   // of the list correctly before we have aChild let go of it.
 | |
|   nsIWidget* prev = aChild->GetPrevSibling();
 | |
|   nsIWidget* next = aChild->GetNextSibling();
 | |
|   if (prev) {
 | |
|     prev->SetNextSibling(next);
 | |
|   }
 | |
|   if (next) {
 | |
|     next->SetPrevSibling(prev);
 | |
|   }
 | |
| 
 | |
|   aChild->SetNextSibling(nullptr);
 | |
|   aChild->SetPrevSibling(nullptr);
 | |
| }
 | |
| 
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Sets widget's position within its parent's child list.
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void nsBaseWidget::SetZIndex(int32_t aZIndex)
 | |
| {
 | |
|   // Hold a ref to ourselves just in case, since we're going to remove
 | |
|   // from our parent.
 | |
|   nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
 | |
| 
 | |
|   mZIndex = aZIndex;
 | |
| 
 | |
|   // reorder this child in its parent's list.
 | |
|   auto* parent = static_cast<nsBaseWidget*>(GetParent());
 | |
|   if (parent) {
 | |
|     parent->RemoveChild(this);
 | |
|     // Scope sib outside the for loop so we can check it afterward
 | |
|     nsIWidget* sib = parent->GetFirstChild();
 | |
|     for ( ; sib; sib = sib->GetNextSibling()) {
 | |
|       int32_t childZIndex = GetZIndex();
 | |
|       if (aZIndex < childZIndex) {
 | |
|         // Insert ourselves before sib
 | |
|         nsIWidget* prev = sib->GetPrevSibling();
 | |
|         mNextSibling = sib;
 | |
|         mPrevSibling = prev;
 | |
|         sib->SetPrevSibling(this);
 | |
|         if (prev) {
 | |
|           prev->SetNextSibling(this);
 | |
|         } else {
 | |
|           NS_ASSERTION(sib == parent->mFirstChild, "Broken child list");
 | |
|           // We've taken ownership of sib, so it's safe to have parent let
 | |
|           // go of it
 | |
|           parent->mFirstChild = this;
 | |
|         }
 | |
|         PlaceBehind(eZPlacementBelow, sib, false);
 | |
|         break;
 | |
|       }
 | |
|     }
 | |
|     // were we added to the list?
 | |
|     if (!sib) {
 | |
|       parent->AddChild(this);
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Maximize, minimize or restore the window. The BaseWidget implementation
 | |
| // merely stores the state.
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void
 | |
| nsBaseWidget::SetSizeMode(nsSizeMode aMode)
 | |
| {
 | |
|   MOZ_ASSERT(aMode == nsSizeMode_Normal ||
 | |
|              aMode == nsSizeMode_Minimized ||
 | |
|              aMode == nsSizeMode_Maximized ||
 | |
|              aMode == nsSizeMode_Fullscreen);
 | |
|   mSizeMode = aMode;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Get this component cursor
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| 
 | |
| void
 | |
| nsBaseWidget::SetCursor(nsCursor aCursor)
 | |
| {
 | |
|   mCursor = aCursor;
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsBaseWidget::SetCursor(imgIContainer* aCursor,
 | |
|                         uint32_t aHotspotX, uint32_t aHotspotY)
 | |
| {
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Window transparency methods
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| 
 | |
| void nsBaseWidget::SetTransparencyMode(nsTransparencyMode aMode) {
 | |
| }
 | |
| 
 | |
| nsTransparencyMode nsBaseWidget::GetTransparencyMode() {
 | |
|   return eTransparencyOpaque;
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsBaseWidget::IsWindowClipRegionEqual(const nsTArray<LayoutDeviceIntRect>& aRects)
 | |
| {
 | |
|   return mClipRects &&
 | |
|          mClipRectCount == aRects.Length() &&
 | |
|          memcmp(mClipRects.get(), aRects.Elements(), sizeof(LayoutDeviceIntRect)*mClipRectCount) == 0;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::StoreWindowClipRegion(const nsTArray<LayoutDeviceIntRect>& aRects)
 | |
| {
 | |
|   mClipRectCount = aRects.Length();
 | |
|   mClipRects = MakeUnique<LayoutDeviceIntRect[]>(mClipRectCount);
 | |
|   if (mClipRects) {
 | |
|     memcpy(mClipRects.get(), aRects.Elements(), sizeof(LayoutDeviceIntRect)*mClipRectCount);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::GetWindowClipRegion(nsTArray<LayoutDeviceIntRect>* aRects)
 | |
| {
 | |
|   if (mClipRects) {
 | |
|     aRects->AppendElements(mClipRects.get(), mClipRectCount);
 | |
|   } else {
 | |
|     aRects->AppendElement(LayoutDeviceIntRect(0, 0, mBounds.width, mBounds.height));
 | |
|   }
 | |
| }
 | |
| 
 | |
| const LayoutDeviceIntRegion
 | |
| nsBaseWidget::RegionFromArray(const nsTArray<LayoutDeviceIntRect>& aRects)
 | |
| {
 | |
|   LayoutDeviceIntRegion region;
 | |
|   for (uint32_t i = 0; i < aRects.Length(); ++i) {
 | |
|     region.Or(region, aRects[i]);
 | |
|   }
 | |
|   return region;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::ArrayFromRegion(const LayoutDeviceIntRegion& aRegion,
 | |
|                               nsTArray<LayoutDeviceIntRect>& aRects)
 | |
| {
 | |
|   for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
 | |
|     aRects.AppendElement(iter.Get());
 | |
|   }
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsBaseWidget::SetWindowClipRegion(const nsTArray<LayoutDeviceIntRect>& aRects,
 | |
|                                   bool aIntersectWithExisting)
 | |
| {
 | |
|   if (!aIntersectWithExisting) {
 | |
|     StoreWindowClipRegion(aRects);
 | |
|   } else {
 | |
|     // get current rects
 | |
|     nsTArray<LayoutDeviceIntRect> currentRects;
 | |
|     GetWindowClipRegion(¤tRects);
 | |
|     // create region from them
 | |
|     LayoutDeviceIntRegion currentRegion = RegionFromArray(currentRects);
 | |
|     // create region from new rects
 | |
|     LayoutDeviceIntRegion newRegion = RegionFromArray(aRects);
 | |
|     // intersect regions
 | |
|     LayoutDeviceIntRegion intersection;
 | |
|     intersection.And(currentRegion, newRegion);
 | |
|     // create int rect array from intersection
 | |
|     nsTArray<LayoutDeviceIntRect> rects;
 | |
|     ArrayFromRegion(intersection, rects);
 | |
|     // store
 | |
|     StoreWindowClipRegion(rects);
 | |
|   }
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| /* virtual */ void
 | |
| nsBaseWidget::PerformFullscreenTransition(FullscreenTransitionStage aStage,
 | |
|                                           uint16_t aDuration,
 | |
|                                           nsISupports* aData,
 | |
|                                           nsIRunnable* aCallback)
 | |
| {
 | |
|   MOZ_ASSERT_UNREACHABLE(
 | |
|     "Should never call PerformFullscreenTransition on nsBaseWidget");
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Put the window into full-screen mode
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void
 | |
| nsBaseWidget::InfallibleMakeFullScreen(bool aFullScreen, nsIScreen* aScreen)
 | |
| {
 | |
|   HideWindowChrome(aFullScreen);
 | |
| 
 | |
|   if (aFullScreen) {
 | |
|     if (!mOriginalBounds) {
 | |
|       mOriginalBounds = new LayoutDeviceIntRect();
 | |
|     }
 | |
|     *mOriginalBounds = GetScreenBounds();
 | |
| 
 | |
|     // Move to top-left corner of screen and size to the screen dimensions
 | |
|     nsCOMPtr<nsIScreen> screen = aScreen;
 | |
|     if (!screen) {
 | |
|       screen = GetWidgetScreen();
 | |
|     }
 | |
|     if (screen) {
 | |
|       int32_t left, top, width, height;
 | |
|       if (NS_SUCCEEDED(screen->GetRectDisplayPix(&left, &top, &width, &height))) {
 | |
|         Resize(left, top, width, height, true);
 | |
|       }
 | |
|     }
 | |
|   } else if (mOriginalBounds) {
 | |
|     if (BoundsUseDesktopPixels()) {
 | |
|       DesktopRect deskRect = *mOriginalBounds / GetDesktopToDeviceScale();
 | |
|       Resize(deskRect.x, deskRect.y, deskRect.width, deskRect.height, true);
 | |
|     } else {
 | |
|       Resize(mOriginalBounds->x, mOriginalBounds->y, mOriginalBounds->width,
 | |
|              mOriginalBounds->height, true);
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsBaseWidget::MakeFullScreen(bool aFullScreen, nsIScreen* aScreen)
 | |
| {
 | |
|   InfallibleMakeFullScreen(aFullScreen, aScreen);
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| nsBaseWidget::AutoLayerManagerSetup::AutoLayerManagerSetup(
 | |
|     nsBaseWidget* aWidget, gfxContext* aTarget,
 | |
|     BufferMode aDoubleBuffering, ScreenRotation aRotation)
 | |
|   : mWidget(aWidget)
 | |
| {
 | |
|   LayerManager* lm = mWidget->GetLayerManager();
 | |
|   NS_ASSERTION(!lm || lm->GetBackendType() == LayersBackend::LAYERS_BASIC,
 | |
|     "AutoLayerManagerSetup instantiated for non-basic layer backend!");
 | |
|   if (lm) {
 | |
|     mLayerManager = lm->AsBasicLayerManager();
 | |
|     if (mLayerManager) {
 | |
|       mLayerManager->SetDefaultTarget(aTarget);
 | |
|       mLayerManager->SetDefaultTargetConfiguration(aDoubleBuffering, aRotation);
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| nsBaseWidget::AutoLayerManagerSetup::~AutoLayerManagerSetup()
 | |
| {
 | |
|   if (mLayerManager) {
 | |
|     mLayerManager->SetDefaultTarget(nullptr);
 | |
|     mLayerManager->SetDefaultTargetConfiguration(mozilla::layers::BufferMode::BUFFER_NONE, ROTATION_0);
 | |
|   }
 | |
| }
 | |
| 
 | |
| bool nsBaseWidget::IsSmallPopup() const
 | |
| {
 | |
|   return mWindowType == eWindowType_popup && mPopupType != ePopupTypePanel;
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsBaseWidget::ComputeShouldAccelerate()
 | |
| {
 | |
|   return gfx::gfxConfig::IsEnabled(gfx::Feature::HW_COMPOSITING) &&
 | |
|          WidgetTypeSupportsAcceleration();
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsBaseWidget::UseAPZ()
 | |
| {
 | |
|   return (gfxPlatform::AsyncPanZoomEnabled() &&
 | |
|           (WindowType() == eWindowType_toplevel ||
 | |
|            WindowType() == eWindowType_child ||
 | |
|            (WindowType() == eWindowType_popup && HasRemoteContent() &&
 | |
|             gfxPrefs::APZPopupsEnabled())));
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::CreateCompositor()
 | |
| {
 | |
|   LayoutDeviceIntRect rect = GetBounds();
 | |
|   CreateCompositor(rect.width, rect.height);
 | |
| }
 | |
| 
 | |
| already_AddRefed<GeckoContentController>
 | |
| nsBaseWidget::CreateRootContentController()
 | |
| {
 | |
|   RefPtr<GeckoContentController> controller = new ChromeProcessController(this, mAPZEventState, mAPZC);
 | |
|   return controller.forget();
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::ConfigureAPZCTreeManager()
 | |
| {
 | |
|   MOZ_ASSERT(mAPZC);
 | |
| 
 | |
|   ConfigureAPZControllerThread();
 | |
| 
 | |
|   mAPZC->SetDPI(GetDPI());
 | |
| 
 | |
|   if (gfxPrefs::APZKeyboardEnabled()) {
 | |
|     mAPZC->SetKeyboardMap(nsXBLWindowKeyHandler::CollectKeyboardShortcuts());
 | |
|   }
 | |
| 
 | |
|   RefPtr<IAPZCTreeManager> treeManager = mAPZC;  // for capture by the lambdas
 | |
| 
 | |
|   ContentReceivedInputBlockCallback callback(
 | |
|       [treeManager](const ScrollableLayerGuid& aGuid,
 | |
|                     uint64_t aInputBlockId,
 | |
|                     bool aPreventDefault)
 | |
|       {
 | |
|         MOZ_ASSERT(NS_IsMainThread());
 | |
|         APZThreadUtils::RunOnControllerThread(NewRunnableMethod<uint64_t, bool>(
 | |
|           "layers::IAPZCTreeManager::ContentReceivedInputBlock",
 | |
|           treeManager,
 | |
|           &IAPZCTreeManager::ContentReceivedInputBlock,
 | |
|           aInputBlockId,
 | |
|           aPreventDefault));
 | |
|       });
 | |
|   mAPZEventState = new APZEventState(this, mozilla::Move(callback));
 | |
| 
 | |
|   mSetAllowedTouchBehaviorCallback = [treeManager](uint64_t aInputBlockId,
 | |
|                                                    const nsTArray<TouchBehaviorFlags>& aFlags)
 | |
|   {
 | |
|     MOZ_ASSERT(NS_IsMainThread());
 | |
|     APZThreadUtils::RunOnControllerThread(
 | |
|       NewRunnableMethod<uint64_t,
 | |
|                         StoreCopyPassByLRef<nsTArray<TouchBehaviorFlags>>>(
 | |
|         "layers::IAPZCTreeManager::SetAllowedTouchBehavior",
 | |
|         treeManager,
 | |
|         &IAPZCTreeManager::SetAllowedTouchBehavior,
 | |
|         aInputBlockId,
 | |
|         aFlags));
 | |
|   };
 | |
| 
 | |
|   mRootContentController = CreateRootContentController();
 | |
|   if (mRootContentController) {
 | |
|     mCompositorSession->SetContentController(mRootContentController);
 | |
|   }
 | |
| 
 | |
|   // When APZ is enabled, we can actually enable raw touch events because we
 | |
|   // have code that can deal with them properly. If APZ is not enabled, this
 | |
|   // function doesn't get called.
 | |
|   if (Preferences::GetInt("dom.w3c_touch_events.enabled", 0) ||
 | |
|       Preferences::GetBool("dom.w3c_pointer_events.enabled", false)) {
 | |
|     RegisterTouchWindow();
 | |
|   }
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::ConfigureAPZControllerThread()
 | |
| {
 | |
|   // By default the controller thread is the main thread.
 | |
|   APZThreadUtils::SetControllerThread(MessageLoop::current());
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::SetConfirmedTargetAPZC(uint64_t aInputBlockId,
 | |
|                                      const nsTArray<ScrollableLayerGuid>& aTargets) const
 | |
| {
 | |
|   APZThreadUtils::RunOnControllerThread(
 | |
|     NewRunnableMethod<uint64_t,
 | |
|                       StoreCopyPassByRRef<nsTArray<ScrollableLayerGuid>>>(
 | |
|       "layers::IAPZCTreeManager::SetTargetAPZC",
 | |
|       mAPZC,
 | |
|       &IAPZCTreeManager::SetTargetAPZC,
 | |
|       aInputBlockId,
 | |
|       aTargets));
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::UpdateZoomConstraints(const uint32_t& aPresShellId,
 | |
|                                     const FrameMetrics::ViewID& aViewId,
 | |
|                                     const Maybe<ZoomConstraints>& aConstraints)
 | |
| {
 | |
|   if (!mCompositorSession || !mAPZC) {
 | |
|     if (mInitialZoomConstraints) {
 | |
|       MOZ_ASSERT(mInitialZoomConstraints->mPresShellID == aPresShellId);
 | |
|       MOZ_ASSERT(mInitialZoomConstraints->mViewID == aViewId);
 | |
|       if (!aConstraints) {
 | |
|         mInitialZoomConstraints.reset();
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     if (aConstraints) {
 | |
|       // We have some constraints, but the compositor and APZC aren't created yet.
 | |
|       // Save these so we can use them later.
 | |
|       mInitialZoomConstraints = Some(InitialZoomConstraints(aPresShellId, aViewId, aConstraints.ref()));
 | |
|     }
 | |
|     return;
 | |
|   }
 | |
|   uint64_t layersId = mCompositorSession->RootLayerTreeId();
 | |
|   mAPZC->UpdateZoomConstraints(ScrollableLayerGuid(layersId, aPresShellId, aViewId),
 | |
|                                aConstraints);
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsBaseWidget::AsyncPanZoomEnabled() const
 | |
| {
 | |
|   return !!mAPZC;
 | |
| }
 | |
| 
 | |
| nsEventStatus
 | |
| nsBaseWidget::ProcessUntransformedAPZEvent(WidgetInputEvent* aEvent,
 | |
|                                            const ScrollableLayerGuid& aGuid,
 | |
|                                            uint64_t aInputBlockId,
 | |
|                                            nsEventStatus aApzResponse)
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   InputAPZContext context(aGuid, aInputBlockId, aApzResponse);
 | |
| 
 | |
|   // If this is an event that the APZ has targeted to an APZC in the root
 | |
|   // process, apply that APZC's callback-transform before dispatching the
 | |
|   // event. If the event is instead targeted to an APZC in the child process,
 | |
|   // the transform will be applied in the child process before dispatching
 | |
|   // the event there (see e.g. TabChild::RecvRealTouchEvent()).
 | |
|   if (aGuid.mLayersId == mCompositorSession->RootLayerTreeId()) {
 | |
|     APZCCallbackHelper::ApplyCallbackTransform(*aEvent, aGuid,
 | |
|         GetDefaultScale());
 | |
|   }
 | |
| 
 | |
|   // Make a copy of the original event for the APZCCallbackHelper helpers that
 | |
|   // we call later, because the event passed to DispatchEvent can get mutated in
 | |
|   // ways that we don't want (i.e. touch points can get stripped out).
 | |
|   nsEventStatus status;
 | |
|   UniquePtr<WidgetEvent> original(aEvent->Duplicate());
 | |
|   DispatchEvent(aEvent, status);
 | |
| 
 | |
|   if (mAPZC && !context.WasRoutedToChildProcess() && aInputBlockId) {
 | |
|     // EventStateManager did not route the event into the child process.
 | |
|     // It's safe to communicate to APZ that the event has been processed.
 | |
|     // TODO: Eventually we'll be able to move the SendSetTargetAPZCNotification
 | |
|     // call into APZEventState::Process*Event() as well.
 | |
|     if (WidgetTouchEvent* touchEvent = aEvent->AsTouchEvent()) {
 | |
|       if (touchEvent->mMessage == eTouchStart) {
 | |
|         if (gfxPrefs::TouchActionEnabled()) {
 | |
|           APZCCallbackHelper::SendSetAllowedTouchBehaviorNotification(this,
 | |
|               GetDocument(), *(original->AsTouchEvent()), aInputBlockId,
 | |
|               mSetAllowedTouchBehaviorCallback);
 | |
|         }
 | |
|         APZCCallbackHelper::SendSetTargetAPZCNotification(this, GetDocument(),
 | |
|             *(original->AsTouchEvent()), aGuid, aInputBlockId);
 | |
|       }
 | |
|       mAPZEventState->ProcessTouchEvent(*touchEvent, aGuid, aInputBlockId,
 | |
|           aApzResponse, status);
 | |
|     } else if (WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent()) {
 | |
|       MOZ_ASSERT(wheelEvent->mFlags.mHandledByAPZ);
 | |
|       APZCCallbackHelper::SendSetTargetAPZCNotification(this, GetDocument(),
 | |
|           *(original->AsWheelEvent()), aGuid, aInputBlockId);
 | |
|       if (wheelEvent->mCanTriggerSwipe) {
 | |
|         ReportSwipeStarted(aInputBlockId, wheelEvent->TriggersSwipe());
 | |
|       }
 | |
|       mAPZEventState->ProcessWheelEvent(*wheelEvent, aGuid, aInputBlockId);
 | |
|     } else if (WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent()) {
 | |
|       MOZ_ASSERT(mouseEvent->mFlags.mHandledByAPZ);
 | |
|       APZCCallbackHelper::SendSetTargetAPZCNotification(this, GetDocument(),
 | |
|           *(original->AsMouseEvent()), aGuid, aInputBlockId);
 | |
|       mAPZEventState->ProcessMouseEvent(*mouseEvent, aGuid, aInputBlockId);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return status;
 | |
| }
 | |
| 
 | |
| class DispatchWheelEventOnMainThread : public Runnable
 | |
| {
 | |
| public:
 | |
|   DispatchWheelEventOnMainThread(const ScrollWheelInput& aWheelInput,
 | |
|                                  nsBaseWidget* aWidget,
 | |
|                                  nsEventStatus aAPZResult,
 | |
|                                  uint64_t aInputBlockId,
 | |
|                                  ScrollableLayerGuid aGuid)
 | |
|     : mozilla::Runnable("DispatchWheelEventOnMainThread")
 | |
|     , mWheelInput(aWheelInput)
 | |
|     , mWidget(aWidget)
 | |
|     , mAPZResult(aAPZResult)
 | |
|     , mInputBlockId(aInputBlockId)
 | |
|     , mGuid(aGuid)
 | |
|   {
 | |
|   }
 | |
| 
 | |
|   NS_IMETHOD Run() override
 | |
|   {
 | |
|     WidgetWheelEvent wheelEvent = mWheelInput.ToWidgetWheelEvent(mWidget);
 | |
|     mWidget->ProcessUntransformedAPZEvent(&wheelEvent, mGuid, mInputBlockId, mAPZResult);
 | |
|     return NS_OK;
 | |
|   }
 | |
| 
 | |
| private:
 | |
|   ScrollWheelInput mWheelInput;
 | |
|   nsBaseWidget* mWidget;
 | |
|   nsEventStatus mAPZResult;
 | |
|   uint64_t mInputBlockId;
 | |
|   ScrollableLayerGuid mGuid;
 | |
| };
 | |
| 
 | |
| class DispatchWheelInputOnControllerThread : public Runnable
 | |
| {
 | |
| public:
 | |
|   DispatchWheelInputOnControllerThread(const WidgetWheelEvent& aWheelEvent,
 | |
|                                        IAPZCTreeManager* aAPZC,
 | |
|                                        nsBaseWidget* aWidget)
 | |
|     : mozilla::Runnable("DispatchWheelInputOnControllerThread")
 | |
|     , mMainMessageLoop(MessageLoop::current())
 | |
|     , mWheelInput(aWheelEvent)
 | |
|     , mAPZC(aAPZC)
 | |
|     , mWidget(aWidget)
 | |
|     , mInputBlockId(0)
 | |
|   {
 | |
|   }
 | |
| 
 | |
|   NS_IMETHOD Run() override
 | |
|   {
 | |
|     nsEventStatus result = mAPZC->ReceiveInputEvent(mWheelInput, &mGuid, &mInputBlockId);
 | |
|     if (result == nsEventStatus_eConsumeNoDefault) {
 | |
|       return NS_OK;
 | |
|     }
 | |
|     RefPtr<Runnable> r = new DispatchWheelEventOnMainThread(mWheelInput, mWidget, result, mInputBlockId, mGuid);
 | |
|     mMainMessageLoop->PostTask(r.forget());
 | |
|     return NS_OK;
 | |
|   }
 | |
| 
 | |
| private:
 | |
|   MessageLoop* mMainMessageLoop;
 | |
|   ScrollWheelInput mWheelInput;
 | |
|   RefPtr<IAPZCTreeManager> mAPZC;
 | |
|   nsBaseWidget* mWidget;
 | |
|   uint64_t mInputBlockId;
 | |
|   ScrollableLayerGuid mGuid;
 | |
| };
 | |
| 
 | |
| void
 | |
| nsBaseWidget::DispatchTouchInput(MultiTouchInput& aInput)
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   if (mAPZC) {
 | |
|     MOZ_ASSERT(APZThreadUtils::IsControllerThread());
 | |
|     uint64_t inputBlockId = 0;
 | |
|     ScrollableLayerGuid guid;
 | |
| 
 | |
|     nsEventStatus result = mAPZC->ReceiveInputEvent(aInput, &guid, &inputBlockId);
 | |
|     if (result == nsEventStatus_eConsumeNoDefault) {
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     WidgetTouchEvent event = aInput.ToWidgetTouchEvent(this);
 | |
|     ProcessUntransformedAPZEvent(&event, guid, inputBlockId, result);
 | |
|   } else {
 | |
|     WidgetTouchEvent event = aInput.ToWidgetTouchEvent(this);
 | |
| 
 | |
|     nsEventStatus status;
 | |
|     DispatchEvent(&event, status);
 | |
|   }
 | |
| }
 | |
| 
 | |
| nsEventStatus
 | |
| nsBaseWidget::DispatchInputEvent(WidgetInputEvent* aEvent)
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   if (mAPZC) {
 | |
|     if (APZThreadUtils::IsControllerThread()) {
 | |
|       uint64_t inputBlockId = 0;
 | |
|       ScrollableLayerGuid guid;
 | |
| 
 | |
|       nsEventStatus result =
 | |
|         mAPZC->ReceiveInputEvent(*aEvent, &guid, &inputBlockId);
 | |
|       if (result == nsEventStatus_eConsumeNoDefault) {
 | |
|         return result;
 | |
|       }
 | |
|       return ProcessUntransformedAPZEvent(aEvent, guid, inputBlockId, result);
 | |
|     }
 | |
|     WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent();
 | |
|     if (wheelEvent) {
 | |
|       RefPtr<Runnable> r =
 | |
|         new DispatchWheelInputOnControllerThread(*wheelEvent, mAPZC, this);
 | |
|       APZThreadUtils::RunOnControllerThread(r.forget());
 | |
|       return nsEventStatus_eConsumeDoDefault;
 | |
|     }
 | |
|     // Allow dispatching keyboard events on Gecko thread.
 | |
|     MOZ_ASSERT(aEvent->AsKeyboardEvent());
 | |
|   }
 | |
| 
 | |
|   nsEventStatus status;
 | |
|   DispatchEvent(aEvent, status);
 | |
|   return status;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::DispatchEventToAPZOnly(mozilla::WidgetInputEvent* aEvent)
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   if (mAPZC) {
 | |
|     MOZ_ASSERT(APZThreadUtils::IsControllerThread());
 | |
|     uint64_t inputBlockId = 0;
 | |
|     ScrollableLayerGuid guid;
 | |
|     mAPZC->ReceiveInputEvent(*aEvent, &guid, &inputBlockId);
 | |
|   }
 | |
| }
 | |
| 
 | |
| // static
 | |
| bool
 | |
| nsBaseWidget::ShowContextMenuAfterMouseUp()
 | |
| {
 | |
|   static bool gContextMenuAfterMouseUp = false;
 | |
|   static bool gContextMenuAfterMouseUpCached = false;
 | |
|   if (!gContextMenuAfterMouseUpCached) {
 | |
|     Preferences::AddBoolVarCache(&gContextMenuAfterMouseUp,
 | |
|                                  "ui.context_menus.after_mouseup",
 | |
|                                  false);
 | |
| 
 | |
|     gContextMenuAfterMouseUpCached = true;
 | |
|   }
 | |
|   return gContextMenuAfterMouseUp;
 | |
| }
 | |
| 
 | |
| nsIDocument*
 | |
| nsBaseWidget::GetDocument() const
 | |
| {
 | |
|   if (mWidgetListener) {
 | |
|     if (nsIPresShell* presShell = mWidgetListener->GetPresShell()) {
 | |
|       return presShell->GetDocument();
 | |
|     }
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::CreateCompositorVsyncDispatcher()
 | |
| {
 | |
|   // Parent directly listens to the vsync source whereas
 | |
|   // child process communicate via IPC
 | |
|   // Should be called AFTER gfxPlatform is initialized
 | |
|   if (XRE_IsParentProcess()) {
 | |
|     mCompositorVsyncDispatcher = new CompositorVsyncDispatcher();
 | |
|   }
 | |
| }
 | |
| 
 | |
| CompositorVsyncDispatcher*
 | |
| nsBaseWidget::GetCompositorVsyncDispatcher()
 | |
| {
 | |
|   return mCompositorVsyncDispatcher;
 | |
| }
 | |
| 
 | |
| already_AddRefed<LayerManager>
 | |
| nsBaseWidget::CreateCompositorSession(int aWidth,
 | |
|                                       int aHeight,
 | |
|                                       CompositorOptions* aOptionsOut)
 | |
| {
 | |
|   MOZ_ASSERT(aOptionsOut);
 | |
| 
 | |
|   do {
 | |
|     CreateCompositorVsyncDispatcher();
 | |
| 
 | |
|     // If widget type does not supports acceleration, we use ClientLayerManager
 | |
|     // even when gfxVars::UseWebRender() is true. WebRender could coexist only
 | |
|     // with BasicCompositor.
 | |
|     bool enableWR = gfx::gfxVars::UseWebRender() && WidgetTypeSupportsAcceleration();
 | |
|     bool enableAPZ = UseAPZ();
 | |
|     CompositorOptions options(enableAPZ, enableWR);
 | |
| 
 | |
|     bool enableAL = gfx::gfxConfig::IsEnabled(gfx::Feature::ADVANCED_LAYERS);
 | |
|     options.SetUseAdvancedLayers(enableAL);
 | |
| 
 | |
|     RefPtr<LayerManager> lm;
 | |
|     if (options.UseWebRender()) {
 | |
|       lm = new WebRenderLayerManager(this);
 | |
|     } else {
 | |
|       lm = new ClientLayerManager(this);
 | |
|     }
 | |
| 
 | |
|     bool retry = false;
 | |
|     gfx::GPUProcessManager* gpu = gfx::GPUProcessManager::Get();
 | |
|     mCompositorSession = gpu->CreateTopLevelCompositor(
 | |
|       this,
 | |
|       lm,
 | |
|       GetDefaultScale(),
 | |
|       options,
 | |
|       UseExternalCompositingSurface(),
 | |
|       gfx::IntSize(aWidth, aHeight),
 | |
|       &retry);
 | |
| 
 | |
|     if (lm->AsWebRenderLayerManager() && mCompositorSession) {
 | |
|       TextureFactoryIdentifier textureFactoryIdentifier;
 | |
|       lm->AsWebRenderLayerManager()->Initialize(mCompositorSession->GetCompositorBridgeChild(),
 | |
|                                                 wr::AsPipelineId(mCompositorSession->RootLayerTreeId()),
 | |
|                                                 &textureFactoryIdentifier);
 | |
|       if (textureFactoryIdentifier.mParentBackend != LayersBackend::LAYERS_WR) {
 | |
|         retry = true;
 | |
|         DestroyCompositor();
 | |
|         gfx::GPUProcessManager::Get()->DisableWebRender(wr::WebRenderError::INITIALIZE);
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     // We need to retry in a loop because the act of failing to create the
 | |
|     // compositor can change our state (e.g. disable WebRender).
 | |
|     if (mCompositorSession || !retry) {
 | |
|       *aOptionsOut = options;
 | |
|       return lm.forget();
 | |
|     }
 | |
|   } while (true);
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::CreateCompositor(int aWidth, int aHeight)
 | |
| {
 | |
|   // This makes sure that gfxPlatforms gets initialized if it hasn't by now.
 | |
|   gfxPlatform::GetPlatform();
 | |
| 
 | |
|   MOZ_ASSERT(gfxPlatform::UsesOffMainThreadCompositing(),
 | |
|              "This function assumes OMTC");
 | |
| 
 | |
|   MOZ_ASSERT(!mCompositorSession && !mCompositorBridgeChild,
 | |
|     "Should have properly cleaned up the previous PCompositor pair beforehand");
 | |
| 
 | |
|   if (mCompositorBridgeChild) {
 | |
|     mCompositorBridgeChild->Destroy();
 | |
|   }
 | |
| 
 | |
|   // Recreating this is tricky, as we may still have an old and we need
 | |
|   // to make sure it's properly destroyed by calling DestroyCompositor!
 | |
| 
 | |
|   // If we've already received a shutdown notification, don't try
 | |
|   // create a new compositor.
 | |
|   if (!mShutdownObserver) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   CompositorOptions options;
 | |
|   RefPtr<LayerManager> lm =
 | |
|     CreateCompositorSession(aWidth, aHeight, &options);
 | |
|   if (!lm) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   MOZ_ASSERT(mCompositorSession);
 | |
|   mCompositorBridgeChild = mCompositorSession->GetCompositorBridgeChild();
 | |
|   SetCompositorWidgetDelegate(mCompositorSession->GetCompositorWidgetDelegate());
 | |
| 
 | |
|   if (options.UseAPZ()) {
 | |
|     mAPZC = mCompositorSession->GetAPZCTreeManager();
 | |
|     ConfigureAPZCTreeManager();
 | |
|   } else {
 | |
|     mAPZC = nullptr;
 | |
|   }
 | |
| 
 | |
|   if (mInitialZoomConstraints) {
 | |
|     UpdateZoomConstraints(mInitialZoomConstraints->mPresShellID,
 | |
|                           mInitialZoomConstraints->mViewID,
 | |
|                           Some(mInitialZoomConstraints->mConstraints));
 | |
|     mInitialZoomConstraints.reset();
 | |
|   }
 | |
| 
 | |
|   if (lm->AsWebRenderLayerManager()) {
 | |
|     TextureFactoryIdentifier textureFactoryIdentifier = lm->GetTextureFactoryIdentifier();
 | |
|     MOZ_ASSERT(textureFactoryIdentifier.mParentBackend == LayersBackend::LAYERS_WR);
 | |
|     ImageBridgeChild::IdentifyCompositorTextureHost(textureFactoryIdentifier);
 | |
|     gfx::VRManagerChild::IdentifyTextureHost(textureFactoryIdentifier);
 | |
|   }
 | |
| 
 | |
|   ShadowLayerForwarder* lf = lm->AsShadowForwarder();
 | |
|   if (lf) {
 | |
|     // lf is non-null if we are creating a ClientLayerManager above
 | |
|     TextureFactoryIdentifier textureFactoryIdentifier;
 | |
|     PLayerTransactionChild* shadowManager = nullptr;
 | |
| 
 | |
|     nsTArray<LayersBackend> backendHints;
 | |
|     gfxPlatform::GetPlatform()->GetCompositorBackends(ComputeShouldAccelerate(), backendHints);
 | |
| 
 | |
|     bool success = false;
 | |
|     if (!backendHints.IsEmpty()) {
 | |
|       shadowManager =
 | |
|         mCompositorBridgeChild->SendPLayerTransactionConstructor(backendHints, 0);
 | |
|       if (shadowManager->SendGetTextureFactoryIdentifier(&textureFactoryIdentifier) &&
 | |
|           textureFactoryIdentifier.mParentBackend != LayersBackend::LAYERS_NONE)
 | |
|       {
 | |
|         success = true;
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     if (!success) {
 | |
|       NS_WARNING("Failed to create an OMT compositor.");
 | |
|       DestroyCompositor();
 | |
|       mLayerManager = nullptr;
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     lf->SetShadowManager(shadowManager);
 | |
|     lm->UpdateTextureFactoryIdentifier(textureFactoryIdentifier);
 | |
|     // Some popup or transparent widgets may use a different backend than the
 | |
|     // compositors used with ImageBridge and VR (and more generally web content).
 | |
|     if (WidgetTypeSupportsAcceleration()) {
 | |
|       ImageBridgeChild::IdentifyCompositorTextureHost(textureFactoryIdentifier);
 | |
|       gfx::VRManagerChild::IdentifyTextureHost(textureFactoryIdentifier);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   WindowUsesOMTC();
 | |
| 
 | |
|   mLayerManager = lm.forget();
 | |
| 
 | |
|   // Only track compositors for top-level windows, since other window types
 | |
|   // may use the basic compositor.  Except on the OS X - see bug 1306383
 | |
| #if defined(XP_MACOSX)
 | |
|   bool getCompositorFromThisWindow = true;
 | |
| #else
 | |
|   bool getCompositorFromThisWindow = (mWindowType == eWindowType_toplevel);
 | |
| #endif
 | |
| 
 | |
|   if (getCompositorFromThisWindow) {
 | |
|     gfxPlatform::GetPlatform()->NotifyCompositorCreated(mLayerManager->GetCompositorBackendType());
 | |
|   }
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::NotifyCompositorSessionLost(CompositorSession* aSession)
 | |
| {
 | |
|   MOZ_ASSERT(aSession == mCompositorSession);
 | |
|   DestroyLayerManager();
 | |
| }
 | |
| 
 | |
| bool nsBaseWidget::ShouldUseOffMainThreadCompositing()
 | |
| {
 | |
|   return gfxPlatform::UsesOffMainThreadCompositing();
 | |
| }
 | |
| 
 | |
| LayerManager* nsBaseWidget::GetLayerManager(PLayerTransactionChild* aShadowManager,
 | |
|                                             LayersBackend aBackendHint,
 | |
|                                             LayerManagerPersistence aPersistence)
 | |
| {
 | |
|   if (!mLayerManager) {
 | |
|     if (!mShutdownObserver) {
 | |
|       // We are shutting down, do not try to re-create a LayerManager
 | |
|       return nullptr;
 | |
|     }
 | |
|     // Try to use an async compositor first, if possible
 | |
|     if (ShouldUseOffMainThreadCompositing()) {
 | |
|       // e10s uses the parameter to pass in the shadow manager from the TabChild
 | |
|       // so we don't expect to see it there since this doesn't support e10s.
 | |
|       NS_ASSERTION(aShadowManager == nullptr, "Async Compositor not supported with e10s");
 | |
|       CreateCompositor();
 | |
|     }
 | |
| 
 | |
|     if (!mLayerManager) {
 | |
|       mLayerManager = CreateBasicLayerManager();
 | |
|     }
 | |
|   }
 | |
|   return mLayerManager;
 | |
| }
 | |
| 
 | |
| LayerManager* nsBaseWidget::CreateBasicLayerManager()
 | |
| {
 | |
|   return new BasicLayerManager(this);
 | |
| }
 | |
| 
 | |
| CompositorBridgeChild* nsBaseWidget::GetRemoteRenderer()
 | |
| {
 | |
|   return mCompositorBridgeChild;
 | |
| }
 | |
| 
 | |
| already_AddRefed<gfx::DrawTarget>
 | |
| nsBaseWidget::StartRemoteDrawing()
 | |
| {
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| uint32_t
 | |
| nsBaseWidget::GetGLFrameBufferFormat()
 | |
| {
 | |
|   return LOCAL_GL_RGBA;
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Destroy the window
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| void nsBaseWidget::OnDestroy()
 | |
| {
 | |
|   if (mTextEventDispatcher) {
 | |
|     mTextEventDispatcher->OnDestroyWidget();
 | |
|     // Don't release it until this widget actually released because after this
 | |
|     // is called, TextEventDispatcher() may create it again.
 | |
|   }
 | |
| 
 | |
|   // If this widget is being destroyed, let the APZ code know to drop references
 | |
|   // to this widget. Callers of this function all should be holding a deathgrip
 | |
|   // on this widget already.
 | |
|   ReleaseContentController();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::MoveClient(double aX, double aY)
 | |
| {
 | |
|   LayoutDeviceIntPoint clientOffset(GetClientOffset());
 | |
| 
 | |
|   // GetClientOffset returns device pixels; scale back to desktop pixels
 | |
|   // if that's what this widget uses for the Move/Resize APIs
 | |
|   if (BoundsUseDesktopPixels()) {
 | |
|     DesktopPoint desktopOffset = clientOffset / GetDesktopToDeviceScale();
 | |
|     Move(aX - desktopOffset.x, aY - desktopOffset.y);
 | |
|   } else {
 | |
|     Move(aX - clientOffset.x, aY - clientOffset.y);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::ResizeClient(double aWidth, double aHeight, bool aRepaint)
 | |
| {
 | |
|   NS_ASSERTION((aWidth >=0) , "Negative width passed to ResizeClient");
 | |
|   NS_ASSERTION((aHeight >=0), "Negative height passed to ResizeClient");
 | |
| 
 | |
|   LayoutDeviceIntRect clientBounds = GetClientBounds();
 | |
| 
 | |
|   // GetClientBounds and mBounds are device pixels; scale back to desktop pixels
 | |
|   // if that's what this widget uses for the Move/Resize APIs
 | |
|   if (BoundsUseDesktopPixels()) {
 | |
|     DesktopSize desktopDelta =
 | |
|       (LayoutDeviceIntSize(mBounds.width, mBounds.height) -
 | |
|        clientBounds.Size()) / GetDesktopToDeviceScale();
 | |
|     Resize(aWidth + desktopDelta.width, aHeight + desktopDelta.height,
 | |
|            aRepaint);
 | |
|   } else {
 | |
|     Resize(mBounds.width + (aWidth - clientBounds.width),
 | |
|            mBounds.height + (aHeight - clientBounds.height), aRepaint);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::ResizeClient(double aX,
 | |
|                            double aY,
 | |
|                            double aWidth,
 | |
|                            double aHeight,
 | |
|                            bool aRepaint)
 | |
| {
 | |
|   NS_ASSERTION((aWidth >=0) , "Negative width passed to ResizeClient");
 | |
|   NS_ASSERTION((aHeight >=0), "Negative height passed to ResizeClient");
 | |
| 
 | |
|   LayoutDeviceIntRect clientBounds = GetClientBounds();
 | |
|   LayoutDeviceIntPoint clientOffset = GetClientOffset();
 | |
| 
 | |
|   if (BoundsUseDesktopPixels()) {
 | |
|     DesktopToLayoutDeviceScale scale = GetDesktopToDeviceScale();
 | |
|     DesktopPoint desktopOffset = clientOffset / scale;
 | |
|     DesktopSize desktopDelta =
 | |
|       (LayoutDeviceIntSize(mBounds.width, mBounds.height) -
 | |
|        clientBounds.Size()) / scale;
 | |
|     Resize(aX - desktopOffset.x, aY - desktopOffset.y,
 | |
|            aWidth + desktopDelta.width, aHeight + desktopDelta.height,
 | |
|            aRepaint);
 | |
|   } else {
 | |
|     Resize(aX - clientOffset.x, aY - clientOffset.y,
 | |
|            aWidth + mBounds.width - clientBounds.width,
 | |
|            aHeight + mBounds.height - clientBounds.height,
 | |
|            aRepaint);
 | |
|   }
 | |
| }
 | |
| 
 | |
| //-------------------------------------------------------------------------
 | |
| //
 | |
| // Bounds
 | |
| //
 | |
| //-------------------------------------------------------------------------
 | |
| 
 | |
| /**
 | |
| * If the implementation of nsWindow supports borders this method MUST be overridden
 | |
| *
 | |
| **/
 | |
| LayoutDeviceIntRect
 | |
| nsBaseWidget::GetClientBounds()
 | |
| {
 | |
|   return GetBounds();
 | |
| }
 | |
| 
 | |
| /**
 | |
| * If the implementation of nsWindow supports borders this method MUST be overridden
 | |
| *
 | |
| **/
 | |
| LayoutDeviceIntRect
 | |
| nsBaseWidget::GetBounds()
 | |
| {
 | |
|   return mBounds;
 | |
| }
 | |
| 
 | |
| /**
 | |
| * If the implementation of nsWindow uses a local coordinate system within the window,
 | |
| * this method must be overridden
 | |
| *
 | |
| **/
 | |
| LayoutDeviceIntRect
 | |
| nsBaseWidget::GetScreenBounds()
 | |
| {
 | |
|   return GetBounds();
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsBaseWidget::GetRestoredBounds(LayoutDeviceIntRect& aRect)
 | |
| {
 | |
|   if (SizeMode() != nsSizeMode_Normal) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
|   aRect = GetScreenBounds();
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| LayoutDeviceIntPoint
 | |
| nsBaseWidget::GetClientOffset()
 | |
| {
 | |
|   return LayoutDeviceIntPoint(0, 0);
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsBaseWidget::SetNonClientMargins(LayoutDeviceIntMargin &margins)
 | |
| {
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| uint32_t nsBaseWidget::GetMaxTouchPoints() const
 | |
| {
 | |
|   return 0;
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsBaseWidget::HasPendingInputEvent()
 | |
| {
 | |
|   return false;
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsBaseWidget::ShowsResizeIndicator(LayoutDeviceIntRect* aResizerRect)
 | |
| {
 | |
|   return false;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Modifies aFile to point at an icon file with the given name and suffix.  The
 | |
|  * suffix may correspond to a file extension with leading '.' if appropriate.
 | |
|  * Returns true if the icon file exists and can be read.
 | |
|  */
 | |
| static bool
 | |
| ResolveIconNameHelper(nsIFile *aFile,
 | |
|                       const nsAString &aIconName,
 | |
|                       const nsAString &aIconSuffix)
 | |
| {
 | |
|   aFile->Append(NS_LITERAL_STRING("icons"));
 | |
|   aFile->Append(NS_LITERAL_STRING("default"));
 | |
|   aFile->Append(aIconName + aIconSuffix);
 | |
| 
 | |
|   bool readable;
 | |
|   return NS_SUCCEEDED(aFile->IsReadable(&readable)) && readable;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Resolve the given icon name into a local file object.  This method is
 | |
|  * intended to be called by subclasses of nsBaseWidget.  aIconSuffix is a
 | |
|  * platform specific icon file suffix (e.g., ".ico" under Win32).
 | |
|  *
 | |
|  * If no file is found matching the given parameters, then null is returned.
 | |
|  */
 | |
| void
 | |
| nsBaseWidget::ResolveIconName(const nsAString &aIconName,
 | |
|                               const nsAString &aIconSuffix,
 | |
|                               nsIFile **aResult)
 | |
| {
 | |
|   *aResult = nullptr;
 | |
| 
 | |
|   nsCOMPtr<nsIProperties> dirSvc = do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
 | |
|   if (!dirSvc)
 | |
|     return;
 | |
| 
 | |
|   // first check auxilary chrome directories
 | |
| 
 | |
|   nsCOMPtr<nsISimpleEnumerator> dirs;
 | |
|   dirSvc->Get(NS_APP_CHROME_DIR_LIST, NS_GET_IID(nsISimpleEnumerator),
 | |
|               getter_AddRefs(dirs));
 | |
|   if (dirs) {
 | |
|     bool hasMore;
 | |
|     while (NS_SUCCEEDED(dirs->HasMoreElements(&hasMore)) && hasMore) {
 | |
|       nsCOMPtr<nsISupports> element;
 | |
|       dirs->GetNext(getter_AddRefs(element));
 | |
|       if (!element)
 | |
|         continue;
 | |
|       nsCOMPtr<nsIFile> file = do_QueryInterface(element);
 | |
|       if (!file)
 | |
|         continue;
 | |
|       if (ResolveIconNameHelper(file, aIconName, aIconSuffix)) {
 | |
|         NS_ADDREF(*aResult = file);
 | |
|         return;
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   // then check the main app chrome directory
 | |
| 
 | |
|   nsCOMPtr<nsIFile> file;
 | |
|   dirSvc->Get(NS_APP_CHROME_DIR, NS_GET_IID(nsIFile),
 | |
|               getter_AddRefs(file));
 | |
|   if (file && ResolveIconNameHelper(file, aIconName, aIconSuffix))
 | |
|     NS_ADDREF(*aResult = file);
 | |
| }
 | |
| 
 | |
| void nsBaseWidget::SetSizeConstraints(const SizeConstraints& aConstraints)
 | |
| {
 | |
|   mSizeConstraints = aConstraints;
 | |
|   // We can't ensure that the size is honored at this point because we're
 | |
|   // probably in the middle of a reflow.
 | |
| }
 | |
| 
 | |
| const widget::SizeConstraints nsBaseWidget::GetSizeConstraints()
 | |
| {
 | |
|   return mSizeConstraints;
 | |
| }
 | |
| 
 | |
| // static
 | |
| nsIRollupListener*
 | |
| nsBaseWidget::GetActiveRollupListener()
 | |
| {
 | |
|   // If set, then this is likely an <html:select> dropdown.
 | |
|   if (gRollupListener)
 | |
|     return gRollupListener;
 | |
| 
 | |
|   return nsXULPopupManager::GetInstance();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifyWindowDestroyed()
 | |
| {
 | |
|   if (!mWidgetListener)
 | |
|     return;
 | |
| 
 | |
|   nsCOMPtr<nsIXULWindow> window = mWidgetListener->GetXULWindow();
 | |
|   nsCOMPtr<nsIBaseWindow> xulWindow(do_QueryInterface(window));
 | |
|   if (xulWindow) {
 | |
|     xulWindow->Destroy();
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifySizeMoveDone()
 | |
| {
 | |
|   if (!mWidgetListener || mWidgetListener->GetXULWindow())
 | |
|     return;
 | |
| 
 | |
|   nsIPresShell* presShell = mWidgetListener->GetPresShell();
 | |
|   if (presShell) {
 | |
|     presShell->WindowSizeMoveDone();
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifyWindowMoved(int32_t aX, int32_t aY)
 | |
| {
 | |
|   if (mWidgetListener) {
 | |
|     mWidgetListener->WindowMoved(this, aX, aY);
 | |
|   }
 | |
| 
 | |
|   if (mIMEHasFocus && IMENotificationRequestsRef().WantPositionChanged()) {
 | |
|     NotifyIME(IMENotification(IMEMessage::NOTIFY_IME_OF_POSITION_CHANGE));
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifySysColorChanged()
 | |
| {
 | |
|   if (!mWidgetListener || mWidgetListener->GetXULWindow())
 | |
|     return;
 | |
| 
 | |
|   nsIPresShell* presShell = mWidgetListener->GetPresShell();
 | |
|   if (presShell) {
 | |
|     presShell->SysColorChanged();
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifyThemeChanged()
 | |
| {
 | |
|   if (!mWidgetListener || mWidgetListener->GetXULWindow())
 | |
|     return;
 | |
| 
 | |
|   nsIPresShell* presShell = mWidgetListener->GetPresShell();
 | |
|   if (presShell) {
 | |
|     presShell->ThemeChanged();
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifyUIStateChanged(UIStateChangeType aShowAccelerators,
 | |
|                                    UIStateChangeType aShowFocusRings)
 | |
| {
 | |
|   if (nsIDocument* doc = GetDocument()) {
 | |
|     nsPIDOMWindowOuter* win = doc->GetWindow();
 | |
|     if (win) {
 | |
|       win->SetKeyboardIndicators(aShowAccelerators, aShowFocusRings);
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsBaseWidget::NotifyIME(const IMENotification& aIMENotification)
 | |
| {
 | |
|   switch (aIMENotification.mMessage) {
 | |
|     case REQUEST_TO_COMMIT_COMPOSITION:
 | |
|     case REQUEST_TO_CANCEL_COMPOSITION:
 | |
|       // We should send request to IME only when there is a TextEventDispatcher
 | |
|       // instance (this means that this widget has dispatched at least one
 | |
|       // composition event or keyboard event) and the it has composition.
 | |
|       // Otherwise, there is nothing to do.
 | |
|       // Note that if current input transaction is for native input events,
 | |
|       // TextEventDispatcher::NotifyIME() will call
 | |
|       // TextEventDispatcherListener::NotifyIME().
 | |
|       if (mTextEventDispatcher && mTextEventDispatcher->IsComposing()) {
 | |
|         return mTextEventDispatcher->NotifyIME(aIMENotification);
 | |
|       }
 | |
|       return NS_OK;
 | |
|     default: {
 | |
|       if (aIMENotification.mMessage == NOTIFY_IME_OF_FOCUS) {
 | |
|         mIMEHasFocus = true;
 | |
|       }
 | |
|       EnsureTextEventDispatcher();
 | |
|       // TextEventDispatcher::NotifyIME() will always call
 | |
|       // TextEventDispatcherListener::NotifyIME().  I.e., even if current
 | |
|       // input transaction is for synthesized events for automated tests,
 | |
|       // notifications will be sent to native IME.
 | |
|       nsresult rv = mTextEventDispatcher->NotifyIME(aIMENotification);
 | |
|       if (aIMENotification.mMessage == NOTIFY_IME_OF_BLUR) {
 | |
|         mIMEHasFocus = false;
 | |
|       }
 | |
|       return rv;
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::EnsureTextEventDispatcher()
 | |
| {
 | |
|   if (mTextEventDispatcher) {
 | |
|     return;
 | |
|   }
 | |
|   mTextEventDispatcher = new TextEventDispatcher(this);
 | |
| }
 | |
| 
 | |
| nsIWidget::TextEventDispatcher*
 | |
| nsBaseWidget::GetTextEventDispatcher()
 | |
| {
 | |
|   EnsureTextEventDispatcher();
 | |
|   return mTextEventDispatcher;
 | |
| }
 | |
| 
 | |
| void*
 | |
| nsBaseWidget::GetPseudoIMEContext()
 | |
| {
 | |
|   TextEventDispatcher* dispatcher = GetTextEventDispatcher();
 | |
|   if (!dispatcher) {
 | |
|     return nullptr;
 | |
|   }
 | |
|   return dispatcher->GetPseudoIMEContext();
 | |
| }
 | |
| 
 | |
| TextEventDispatcherListener*
 | |
| nsBaseWidget::GetNativeTextEventDispatcherListener()
 | |
| {
 | |
|   // TODO: If all platforms supported use of TextEventDispatcher for handling
 | |
|   //       native IME and keyboard events, this method should be removed since
 | |
|   //       in such case, this is overridden by all the subclasses.
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::ZoomToRect(const uint32_t& aPresShellId,
 | |
|                          const FrameMetrics::ViewID& aViewId,
 | |
|                          const CSSRect& aRect,
 | |
|                          const uint32_t& aFlags)
 | |
| {
 | |
|   if (!mCompositorSession || !mAPZC) {
 | |
|     return;
 | |
|   }
 | |
|   uint64_t layerId = mCompositorSession->RootLayerTreeId();
 | |
|   mAPZC->ZoomToRect(ScrollableLayerGuid(layerId, aPresShellId, aViewId), aRect, aFlags);
 | |
| }
 | |
| 
 | |
| #ifdef ACCESSIBILITY
 | |
| 
 | |
| a11y::Accessible*
 | |
| nsBaseWidget::GetRootAccessible()
 | |
| {
 | |
|   NS_ENSURE_TRUE(mWidgetListener, nullptr);
 | |
| 
 | |
|   nsIPresShell* presShell = mWidgetListener->GetPresShell();
 | |
|   NS_ENSURE_TRUE(presShell, nullptr);
 | |
| 
 | |
|   // If container is null then the presshell is not active. This often happens
 | |
|   // when a preshell is being held onto for fastback.
 | |
|   nsPresContext* presContext = presShell->GetPresContext();
 | |
|   NS_ENSURE_TRUE(presContext->GetContainerWeak(), nullptr);
 | |
| 
 | |
|   // Accessible creation might be not safe so use IsSafeToRunScript to
 | |
|   // make sure it's not created at unsafe times.
 | |
|   nsAccessibilityService* accService = GetOrCreateAccService();
 | |
|   if (accService) {
 | |
|     return accService->GetRootDocumentAccessible(presShell, nsContentUtils::IsSafeToRunScript());
 | |
|   }
 | |
| 
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| #endif // ACCESSIBILITY
 | |
| 
 | |
| void
 | |
| nsBaseWidget::StartAsyncScrollbarDrag(const AsyncDragMetrics& aDragMetrics)
 | |
| {
 | |
|   if (!AsyncPanZoomEnabled()) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   MOZ_ASSERT(XRE_IsParentProcess() && mCompositorSession);
 | |
| 
 | |
|   uint64_t layersId = mCompositorSession->RootLayerTreeId();
 | |
|   ScrollableLayerGuid guid(layersId, aDragMetrics.mPresShellId, aDragMetrics.mViewId);
 | |
| 
 | |
|   APZThreadUtils::RunOnControllerThread(
 | |
|     NewRunnableMethod<ScrollableLayerGuid, AsyncDragMetrics>(
 | |
|       "layers::IAPZCTreeManager::StartScrollbarDrag",
 | |
|       mAPZC,
 | |
|       &IAPZCTreeManager::StartScrollbarDrag,
 | |
|       guid,
 | |
|       aDragMetrics));
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsBaseWidget::StartAsyncAutoscroll(const ScreenPoint& aAnchorLocation,
 | |
|                                    const ScrollableLayerGuid& aGuid)
 | |
| {
 | |
|   MOZ_ASSERT(XRE_IsParentProcess() && AsyncPanZoomEnabled());
 | |
| 
 | |
|   return mAPZC->StartAutoscroll(aGuid, aAnchorLocation);
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::StopAsyncAutoscroll(const ScrollableLayerGuid& aGuid)
 | |
| {
 | |
|   MOZ_ASSERT(XRE_IsParentProcess() && AsyncPanZoomEnabled());
 | |
| 
 | |
|   mAPZC->StopAutoscroll(aGuid);
 | |
| }
 | |
| 
 | |
| 
 | |
| already_AddRefed<nsIScreen>
 | |
| nsBaseWidget::GetWidgetScreen()
 | |
| {
 | |
|   nsCOMPtr<nsIScreenManager> screenManager;
 | |
|   screenManager = do_GetService("@mozilla.org/gfx/screenmanager;1");
 | |
|   if (!screenManager) {
 | |
|     return nullptr;
 | |
|   }
 | |
| 
 | |
|   LayoutDeviceIntRect bounds = GetScreenBounds();
 | |
|   DesktopIntRect deskBounds = RoundedToInt(bounds / GetDesktopToDeviceScale());
 | |
|   nsCOMPtr<nsIScreen> screen;
 | |
|   screenManager->ScreenForRect(deskBounds.x, deskBounds.y,
 | |
|                                deskBounds.width, deskBounds.height,
 | |
|                                getter_AddRefs(screen));
 | |
|   return screen.forget();
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsIWidget::SynthesizeNativeTouchTap(LayoutDeviceIntPoint aPoint, bool aLongTap,
 | |
|                                     nsIObserver* aObserver)
 | |
| {
 | |
|   AutoObserverNotifier notifier(aObserver, "touchtap");
 | |
| 
 | |
|   if (sPointerIdCounter > TOUCH_INJECT_MAX_POINTS) {
 | |
|     sPointerIdCounter = 0;
 | |
|   }
 | |
|   int pointerId = sPointerIdCounter;
 | |
|   sPointerIdCounter++;
 | |
|   nsresult rv = SynthesizeNativeTouchPoint(pointerId, TOUCH_CONTACT,
 | |
|                                            aPoint, 1.0, 90, nullptr);
 | |
|   if (NS_FAILED(rv)) {
 | |
|     return rv;
 | |
|   }
 | |
| 
 | |
|   if (!aLongTap) {
 | |
|     return SynthesizeNativeTouchPoint(pointerId, TOUCH_REMOVE,
 | |
|                                       aPoint, 0, 0, nullptr);
 | |
|   }
 | |
| 
 | |
|   // initiate a long tap
 | |
|   int elapse = Preferences::GetInt("ui.click_hold_context_menus.delay",
 | |
|                                    TOUCH_INJECT_LONG_TAP_DEFAULT_MSEC);
 | |
|   if (!mLongTapTimer) {
 | |
|     mLongTapTimer = NS_NewTimer();
 | |
|     if (!mLongTapTimer) {
 | |
|       SynthesizeNativeTouchPoint(pointerId, TOUCH_CANCEL,
 | |
|                                  aPoint, 0, 0, nullptr);
 | |
|       return NS_ERROR_UNEXPECTED;
 | |
|     }
 | |
|     // Windows requires recuring events, so we set this to a smaller window
 | |
|     // than the pref value.
 | |
|     int timeout = elapse;
 | |
|     if (timeout > TOUCH_INJECT_PUMP_TIMER_MSEC) {
 | |
|       timeout = TOUCH_INJECT_PUMP_TIMER_MSEC;
 | |
|     }
 | |
|     mLongTapTimer->InitWithNamedFuncCallback(
 | |
|       OnLongTapTimerCallback,
 | |
|       this,
 | |
|       timeout,
 | |
|       nsITimer::TYPE_REPEATING_SLACK,
 | |
|       "nsIWidget::SynthesizeNativeTouchTap");
 | |
|   }
 | |
| 
 | |
|   // If we already have a long tap pending, cancel it. We only allow one long
 | |
|   // tap to be active at a time.
 | |
|   if (mLongTapTouchPoint) {
 | |
|     SynthesizeNativeTouchPoint(mLongTapTouchPoint->mPointerId, TOUCH_CANCEL,
 | |
|                                mLongTapTouchPoint->mPosition, 0, 0, nullptr);
 | |
|   }
 | |
| 
 | |
|   mLongTapTouchPoint =
 | |
|     MakeUnique<LongTapInfo>(pointerId, aPoint,
 | |
|                             TimeDuration::FromMilliseconds(elapse),
 | |
|                             aObserver);
 | |
|   notifier.SkipNotification();  // we'll do it in the long-tap callback
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| // static
 | |
| void
 | |
| nsIWidget::OnLongTapTimerCallback(nsITimer* aTimer, void* aClosure)
 | |
| {
 | |
|   auto *self = static_cast<nsIWidget *>(aClosure);
 | |
| 
 | |
|   if ((self->mLongTapTouchPoint->mStamp + self->mLongTapTouchPoint->mDuration) >
 | |
|       TimeStamp::Now()) {
 | |
| #ifdef XP_WIN
 | |
|     // Windows needs us to keep pumping feedback to the digitizer, so update
 | |
|     // the pointer id with the same position.
 | |
|     self->SynthesizeNativeTouchPoint(self->mLongTapTouchPoint->mPointerId,
 | |
|                                      TOUCH_CONTACT,
 | |
|                                      self->mLongTapTouchPoint->mPosition,
 | |
|                                      1.0, 90, nullptr);
 | |
| #endif
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   AutoObserverNotifier notifier(self->mLongTapTouchPoint->mObserver, "touchtap");
 | |
| 
 | |
|   // finished, remove the touch point
 | |
|   self->mLongTapTimer->Cancel();
 | |
|   self->mLongTapTimer = nullptr;
 | |
|   self->SynthesizeNativeTouchPoint(self->mLongTapTouchPoint->mPointerId,
 | |
|                                    TOUCH_REMOVE,
 | |
|                                    self->mLongTapTouchPoint->mPosition,
 | |
|                                    0, 0, nullptr);
 | |
|   self->mLongTapTouchPoint = nullptr;
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsIWidget::ClearNativeTouchSequence(nsIObserver* aObserver)
 | |
| {
 | |
|   AutoObserverNotifier notifier(aObserver, "cleartouch");
 | |
| 
 | |
|   if (!mLongTapTimer) {
 | |
|     return NS_OK;
 | |
|   }
 | |
|   mLongTapTimer->Cancel();
 | |
|   mLongTapTimer = nullptr;
 | |
|   SynthesizeNativeTouchPoint(mLongTapTouchPoint->mPointerId, TOUCH_CANCEL,
 | |
|                              mLongTapTouchPoint->mPosition, 0, 0, nullptr);
 | |
|   mLongTapTouchPoint = nullptr;
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| MultiTouchInput
 | |
| nsBaseWidget::UpdateSynthesizedTouchState(MultiTouchInput* aState,
 | |
|                                           uint32_t aTime,
 | |
|                                           mozilla::TimeStamp aTimeStamp,
 | |
|                                           uint32_t aPointerId,
 | |
|                                           TouchPointerState aPointerState,
 | |
|                                           LayoutDeviceIntPoint aPoint,
 | |
|                                           double aPointerPressure,
 | |
|                                           uint32_t aPointerOrientation)
 | |
| {
 | |
|   ScreenIntPoint pointerScreenPoint = ViewAs<ScreenPixel>(aPoint,
 | |
|       PixelCastJustification::LayoutDeviceIsScreenForBounds);
 | |
| 
 | |
|   // We can't dispatch *aState directly because (a) dispatching
 | |
|   // it might inadvertently modify it and (b) in the case of touchend or
 | |
|   // touchcancel events aState will hold the touches that are
 | |
|   // still down whereas the input dispatched needs to hold the removed
 | |
|   // touch(es). We use |inputToDispatch| for this purpose.
 | |
|   MultiTouchInput inputToDispatch;
 | |
|   inputToDispatch.mInputType = MULTITOUCH_INPUT;
 | |
|   inputToDispatch.mTime = aTime;
 | |
|   inputToDispatch.mTimeStamp = aTimeStamp;
 | |
| 
 | |
|   int32_t index = aState->IndexOfTouch((int32_t)aPointerId);
 | |
|   if (aPointerState == TOUCH_CONTACT) {
 | |
|     if (index >= 0) {
 | |
|       // found an existing touch point, update it
 | |
|       SingleTouchData& point = aState->mTouches[index];
 | |
|       point.mScreenPoint = pointerScreenPoint;
 | |
|       point.mRotationAngle = (float)aPointerOrientation;
 | |
|       point.mForce = (float)aPointerPressure;
 | |
|       inputToDispatch.mType = MultiTouchInput::MULTITOUCH_MOVE;
 | |
|     } else {
 | |
|       // new touch point, add it
 | |
|       aState->mTouches.AppendElement(SingleTouchData(
 | |
|           (int32_t)aPointerId,
 | |
|           pointerScreenPoint,
 | |
|           ScreenSize(0, 0),
 | |
|           (float)aPointerOrientation,
 | |
|           (float)aPointerPressure));
 | |
|       inputToDispatch.mType = MultiTouchInput::MULTITOUCH_START;
 | |
|     }
 | |
|     inputToDispatch.mTouches = aState->mTouches;
 | |
|   } else {
 | |
|     MOZ_ASSERT(aPointerState == TOUCH_REMOVE || aPointerState == TOUCH_CANCEL);
 | |
|     // a touch point is being lifted, so remove it from the stored list
 | |
|     if (index >= 0) {
 | |
|       aState->mTouches.RemoveElementAt(index);
 | |
|     }
 | |
|     inputToDispatch.mType = (aPointerState == TOUCH_REMOVE
 | |
|         ? MultiTouchInput::MULTITOUCH_END
 | |
|         : MultiTouchInput::MULTITOUCH_CANCEL);
 | |
|     inputToDispatch.mTouches.AppendElement(SingleTouchData(
 | |
|         (int32_t)aPointerId,
 | |
|         pointerScreenPoint,
 | |
|         ScreenSize(0, 0),
 | |
|         (float)aPointerOrientation,
 | |
|         (float)aPointerPressure));
 | |
|   }
 | |
| 
 | |
|   return inputToDispatch;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifyLiveResizeStarted()
 | |
| {
 | |
|   // If we have mLiveResizeListeners already non-empty, we should notify those
 | |
|   // listeners that the resize stopped before starting anew. In theory this
 | |
|   // should never happen because we shouldn't get nested live resize actions.
 | |
|   NotifyLiveResizeStopped();
 | |
|   MOZ_ASSERT(mLiveResizeListeners.IsEmpty());
 | |
| 
 | |
|   // If we can get the active tab parent for the current widget, suppress
 | |
|   // the displayport on it during the live resize.
 | |
|   if (!mWidgetListener) {
 | |
|     return;
 | |
|   }
 | |
|   nsCOMPtr<nsIXULWindow> xulWindow = mWidgetListener->GetXULWindow();
 | |
|   if (!xulWindow) {
 | |
|     return;
 | |
|   }
 | |
|   mLiveResizeListeners = xulWindow->GetLiveResizeListeners();
 | |
|   for (uint32_t i = 0; i < mLiveResizeListeners.Length(); i++) {
 | |
|     mLiveResizeListeners[i]->LiveResizeStarted();
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::NotifyLiveResizeStopped()
 | |
| {
 | |
|   if (!mLiveResizeListeners.IsEmpty()) {
 | |
|     for (uint32_t i = 0; i < mLiveResizeListeners.Length(); i++) {
 | |
|       mLiveResizeListeners[i]->LiveResizeStopped();
 | |
|     }
 | |
|     mLiveResizeListeners.Clear();
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::RegisterPluginWindowForRemoteUpdates()
 | |
| {
 | |
| #if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
 | |
|   NS_NOTREACHED("nsBaseWidget::RegisterPluginWindowForRemoteUpdates not implemented!");
 | |
|   return;
 | |
| #else
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   void* id = GetNativeData(NS_NATIVE_PLUGIN_ID);
 | |
|   if (!id) {
 | |
|     NS_WARNING("This is not a valid native widget!");
 | |
|     return;
 | |
|   }
 | |
|   MOZ_ASSERT(sPluginWidgetList);
 | |
|   sPluginWidgetList->Put(id, this);
 | |
| #endif
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::UnregisterPluginWindowForRemoteUpdates()
 | |
| {
 | |
| #if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
 | |
|   NS_NOTREACHED("nsBaseWidget::UnregisterPluginWindowForRemoteUpdates not implemented!");
 | |
|   return;
 | |
| #else
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   void* id = GetNativeData(NS_NATIVE_PLUGIN_ID);
 | |
|   if (!id) {
 | |
|     NS_WARNING("This is not a valid native widget!");
 | |
|     return;
 | |
|   }
 | |
|   MOZ_ASSERT(sPluginWidgetList);
 | |
|   sPluginWidgetList->Remove(id);
 | |
| #endif
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsBaseWidget::AsyncEnableDragDrop(bool aEnable)
 | |
| {
 | |
|   RefPtr<nsBaseWidget> kungFuDeathGrip = this;
 | |
|   return NS_IdleDispatchToCurrentThread(
 | |
|     NS_NewRunnableFunction("AsyncEnableDragDropFn",
 | |
|                            [this, aEnable, kungFuDeathGrip]() {
 | |
|                              EnableDragDrop(aEnable);
 | |
|                            }),
 | |
|     kAsyncDragDropTimeout);
 | |
| }
 | |
| 
 | |
| // static
 | |
| nsIWidget*
 | |
| nsIWidget::LookupRegisteredPluginWindow(uintptr_t aWindowID)
 | |
| {
 | |
| #if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
 | |
|   NS_NOTREACHED("nsBaseWidget::LookupRegisteredPluginWindow not implemented!");
 | |
|   return nullptr;
 | |
| #else
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   MOZ_ASSERT(sPluginWidgetList);
 | |
|   return sPluginWidgetList->GetWeak((void*)aWindowID);
 | |
| #endif
 | |
| }
 | |
| 
 | |
| // static
 | |
| void
 | |
| nsIWidget::UpdateRegisteredPluginWindowVisibility(uintptr_t aOwnerWidget,
 | |
|                                                   nsTArray<uintptr_t>& aPluginIds)
 | |
| {
 | |
| #if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
 | |
|   NS_NOTREACHED("nsBaseWidget::UpdateRegisteredPluginWindowVisibility not implemented!");
 | |
|   return;
 | |
| #else
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   MOZ_ASSERT(sPluginWidgetList);
 | |
| 
 | |
|   // Our visible list is associated with a compositor which is associated with
 | |
|   // a specific top level window. We use the parent widget during iteration
 | |
|   // to skip the plugin widgets owned by other top level windows.
 | |
|   for (auto iter = sPluginWidgetList->Iter(); !iter.Done(); iter.Next()) {
 | |
|     const void* windowId = iter.Key();
 | |
|     nsIWidget* widget = iter.UserData();
 | |
| 
 | |
|     MOZ_ASSERT(windowId);
 | |
|     MOZ_ASSERT(widget);
 | |
| 
 | |
|     if (!widget->Destroyed()) {
 | |
|       if ((uintptr_t)widget->GetParent() == aOwnerWidget) {
 | |
|         widget->Show(aPluginIds.Contains((uintptr_t)windowId));
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| #endif
 | |
| }
 | |
| 
 | |
| #if defined(XP_WIN)
 | |
| // static
 | |
| void
 | |
| nsIWidget::CaptureRegisteredPlugins(uintptr_t aOwnerWidget)
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
|   MOZ_ASSERT(sPluginWidgetList);
 | |
| 
 | |
|   // Our visible list is associated with a compositor which is associated with
 | |
|   // a specific top level window. We use the parent widget during iteration
 | |
|   // to skip the plugin widgets owned by other top level windows.
 | |
|   for (auto iter = sPluginWidgetList->Iter(); !iter.Done(); iter.Next()) {
 | |
|     DebugOnly<const void*> windowId = iter.Key();
 | |
|     nsIWidget* widget = iter.UserData();
 | |
| 
 | |
|     MOZ_ASSERT(windowId);
 | |
|     MOZ_ASSERT(widget);
 | |
| 
 | |
|     if (!widget->Destroyed() && widget->IsVisible()) {
 | |
|       if ((uintptr_t)widget->GetParent() == aOwnerWidget) {
 | |
|         widget->UpdateScrollCapture();
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| uint64_t
 | |
| nsBaseWidget::CreateScrollCaptureContainer()
 | |
| {
 | |
|   mScrollCaptureContainer =
 | |
|     LayerManager::CreateImageContainer(ImageContainer::ASYNCHRONOUS);
 | |
|   if (!mScrollCaptureContainer) {
 | |
|     NS_WARNING("Failed to create ImageContainer for widget image capture.");
 | |
|     return ImageContainer::sInvalidAsyncContainerId;
 | |
|   }
 | |
| 
 | |
|   return mScrollCaptureContainer->GetAsyncContainerHandle().Value();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::UpdateScrollCapture()
 | |
| {
 | |
|   // Don't capture if no container or no size.
 | |
|   if (!mScrollCaptureContainer || mBounds.width <= 0 || mBounds.height <= 0) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   // If the derived class cannot take a snapshot, for example due to clipping,
 | |
|   // then it is responsible for creating a fallback. If null is returned, this
 | |
|   // means that we want to keep the existing snapshot.
 | |
|   RefPtr<gfx::SourceSurface> snapshot = CreateScrollSnapshot();
 | |
|   if (!snapshot) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   ImageContainer::NonOwningImage holder(new SourceSurfaceImage(snapshot));
 | |
| 
 | |
|   AutoTArray<ImageContainer::NonOwningImage, 1> imageList;
 | |
|   imageList.AppendElement(holder);
 | |
| 
 | |
|   mScrollCaptureContainer->SetCurrentImages(imageList);
 | |
| }
 | |
| 
 | |
| void
 | |
| nsBaseWidget::DefaultFillScrollCapture(DrawTarget* aSnapshotDrawTarget)
 | |
| {
 | |
|   gfx::IntSize dtSize = aSnapshotDrawTarget->GetSize();
 | |
|   aSnapshotDrawTarget->FillRect(
 | |
|     gfx::Rect(0, 0, dtSize.width, dtSize.height),
 | |
|     gfx::ColorPattern(gfx::Color::FromABGR(kScrollCaptureFillColor)),
 | |
|     gfx::DrawOptions(1.f, gfx::CompositionOp::OP_SOURCE));
 | |
|   aSnapshotDrawTarget->Flush();
 | |
| }
 | |
| #endif
 | |
| 
 | |
| nsIWidget::NativeIMEContext
 | |
| nsIWidget::GetNativeIMEContext()
 | |
| {
 | |
|   return NativeIMEContext(this);
 | |
| }
 | |
| 
 | |
| const IMENotificationRequests&
 | |
| nsIWidget::IMENotificationRequestsRef()
 | |
| {
 | |
|   TextEventDispatcher* dispatcher = GetTextEventDispatcher();
 | |
|   return dispatcher->IMENotificationRequestsRef();
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsIWidget::OnWindowedPluginKeyEvent(const NativeEventData& aKeyEventData,
 | |
|                                     nsIKeyEventInPluginCallback* aCallback)
 | |
| {
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsIWidget::PostHandleKeyEvent(mozilla::WidgetKeyboardEvent* aEvent)
 | |
| {
 | |
| }
 | |
| 
 | |
| void
 | |
| nsIWidget::GetEditCommands(nsIWidget::NativeKeyBindingsType aType,
 | |
|                            const WidgetKeyboardEvent& aEvent,
 | |
|                            nsTArray<CommandInt>& aCommands)
 | |
| {
 | |
|   MOZ_ASSERT(aEvent.IsTrusted());
 | |
|   MOZ_ASSERT(aCommands.IsEmpty());
 | |
| }
 | |
| 
 | |
| namespace mozilla {
 | |
| namespace widget {
 | |
| 
 | |
| const char*
 | |
| ToChar(InputContext::Origin aOrigin)
 | |
| {
 | |
|   switch (aOrigin) {
 | |
|     case InputContext::ORIGIN_MAIN:
 | |
|       return "ORIGIN_MAIN";
 | |
|     case InputContext::ORIGIN_CONTENT:
 | |
|       return "ORIGIN_CONTENT";
 | |
|     default:
 | |
|       return "Unexpected value";
 | |
|   }
 | |
| }
 | |
| 
 | |
| const char*
 | |
| ToChar(IMEMessage aIMEMessage)
 | |
| {
 | |
|   switch (aIMEMessage) {
 | |
|     case NOTIFY_IME_OF_NOTHING:
 | |
|       return "NOTIFY_IME_OF_NOTHING";
 | |
|     case NOTIFY_IME_OF_FOCUS:
 | |
|       return "NOTIFY_IME_OF_FOCUS";
 | |
|     case NOTIFY_IME_OF_BLUR:
 | |
|       return "NOTIFY_IME_OF_BLUR";
 | |
|     case NOTIFY_IME_OF_SELECTION_CHANGE:
 | |
|       return "NOTIFY_IME_OF_SELECTION_CHANGE";
 | |
|     case NOTIFY_IME_OF_TEXT_CHANGE:
 | |
|       return "NOTIFY_IME_OF_TEXT_CHANGE";
 | |
|     case NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED:
 | |
|       return "NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED";
 | |
|     case NOTIFY_IME_OF_POSITION_CHANGE:
 | |
|       return "NOTIFY_IME_OF_POSITION_CHANGE";
 | |
|     case NOTIFY_IME_OF_MOUSE_BUTTON_EVENT:
 | |
|       return "NOTIFY_IME_OF_MOUSE_BUTTON_EVENT";
 | |
|     case REQUEST_TO_COMMIT_COMPOSITION:
 | |
|       return "REQUEST_TO_COMMIT_COMPOSITION";
 | |
|     case REQUEST_TO_CANCEL_COMPOSITION:
 | |
|       return "REQUEST_TO_CANCEL_COMPOSITION";
 | |
|     default:
 | |
|       return "Unexpected value";
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| NativeIMEContext::Init(nsIWidget* aWidget)
 | |
| {
 | |
|   if (!aWidget) {
 | |
|     mRawNativeIMEContext = reinterpret_cast<uintptr_t>(nullptr);
 | |
|     mOriginProcessID = static_cast<uint64_t>(-1);
 | |
|     return;
 | |
|   }
 | |
|   if (!XRE_IsContentProcess()) {
 | |
|     mRawNativeIMEContext = reinterpret_cast<uintptr_t>(
 | |
|       aWidget->GetNativeData(NS_RAW_NATIVE_IME_CONTEXT));
 | |
|     mOriginProcessID = 0;
 | |
|     return;
 | |
|   }
 | |
|   // If this is created in a child process, aWidget is an instance of
 | |
|   // PuppetWidget which doesn't support NS_RAW_NATIVE_IME_CONTEXT.
 | |
|   // Instead of that PuppetWidget::GetNativeIMEContext() returns cached
 | |
|   // native IME context of the parent process.
 | |
|   *this = aWidget->GetNativeIMEContext();
 | |
| }
 | |
| 
 | |
| void
 | |
| NativeIMEContext::InitWithRawNativeIMEContext(void* aRawNativeIMEContext)
 | |
| {
 | |
|   if (NS_WARN_IF(!aRawNativeIMEContext)) {
 | |
|     mRawNativeIMEContext = reinterpret_cast<uintptr_t>(nullptr);
 | |
|     mOriginProcessID = static_cast<uint64_t>(-1);
 | |
|     return;
 | |
|   }
 | |
|   mRawNativeIMEContext = reinterpret_cast<uintptr_t>(aRawNativeIMEContext);
 | |
|   mOriginProcessID =
 | |
|     XRE_IsContentProcess() ? ContentChild::GetSingleton()->GetID() : 0;
 | |
| }
 | |
| 
 | |
| void
 | |
| IMENotification::TextChangeDataBase::MergeWith(
 | |
|                    const IMENotification::TextChangeDataBase& aOther)
 | |
| {
 | |
|   MOZ_ASSERT(aOther.IsValid(),
 | |
|              "Merging data must store valid data");
 | |
|   MOZ_ASSERT(aOther.mStartOffset <= aOther.mRemovedEndOffset,
 | |
|              "end of removed text must be same or larger than start");
 | |
|   MOZ_ASSERT(aOther.mStartOffset <= aOther.mAddedEndOffset,
 | |
|              "end of added text must be same or larger than start");
 | |
| 
 | |
|   if (!IsValid()) {
 | |
|     *this = aOther;
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   // |mStartOffset| and |mRemovedEndOffset| represent all replaced or removed
 | |
|   // text ranges.  I.e., mStartOffset should be the smallest offset of all
 | |
|   // modified text ranges in old text.  |mRemovedEndOffset| should be the
 | |
|   // largest end offset in old text of all modified text ranges.
 | |
|   // |mAddedEndOffset| represents the end offset of all inserted text ranges.
 | |
|   // I.e., only this is an offset in new text.
 | |
|   // In other words, between mStartOffset and |mRemovedEndOffset| of the
 | |
|   // premodified text was already removed.  And some text whose length is
 | |
|   // |mAddedEndOffset - mStartOffset| is inserted to |mStartOffset|.  I.e.,
 | |
|   // this allows IME to mark dirty the modified text range with |mStartOffset|
 | |
|   // and |mRemovedEndOffset| if IME stores all text of the focused editor and
 | |
|   // to compute new text length with |mAddedEndOffset| and |mRemovedEndOffset|.
 | |
|   // Additionally, IME can retrieve only the text between |mStartOffset| and
 | |
|   // |mAddedEndOffset| for updating stored text.
 | |
| 
 | |
|   // For comparing new and old |mStartOffset|/|mRemovedEndOffset| values, they
 | |
|   // should be adjusted to be in same text. The |newData.mStartOffset| and
 | |
|   // |newData.mRemovedEndOffset| should be computed as in old text because
 | |
|   // |mStartOffset| and |mRemovedEndOffset| represent the modified text range
 | |
|   // in the old text but even if some text before the values of the newData
 | |
|   // has already been modified, the values don't include the changes.
 | |
| 
 | |
|   // For comparing new and old |mAddedEndOffset| values, they should be
 | |
|   // adjusted to be in same text.  The |oldData.mAddedEndOffset| should be
 | |
|   // computed as in the new text because |mAddedEndOffset| indicates the end
 | |
|   // offset of inserted text in the new text but |oldData.mAddedEndOffset|
 | |
|   // doesn't include any changes of the text before |newData.mAddedEndOffset|.
 | |
| 
 | |
|   const TextChangeDataBase& newData = aOther;
 | |
|   const TextChangeDataBase oldData = *this;
 | |
| 
 | |
|   // mCausedOnlyByComposition should be true only when all changes are caused
 | |
|   // by composition.
 | |
|   mCausedOnlyByComposition =
 | |
|     newData.mCausedOnlyByComposition && oldData.mCausedOnlyByComposition;
 | |
| 
 | |
|   // mIncludingChangesWithoutComposition should be true if at least one of
 | |
|   // merged changes occurred without composition.
 | |
|   mIncludingChangesWithoutComposition =
 | |
|     newData.mIncludingChangesWithoutComposition ||
 | |
|       oldData.mIncludingChangesWithoutComposition;
 | |
| 
 | |
|   // mIncludingChangesDuringComposition should be true when at least one of
 | |
|   // the merged non-composition changes occurred during the latest composition.
 | |
|   if (!newData.mCausedOnlyByComposition &&
 | |
|       !newData.mIncludingChangesDuringComposition) {
 | |
|     MOZ_ASSERT(newData.mIncludingChangesWithoutComposition);
 | |
|     MOZ_ASSERT(mIncludingChangesWithoutComposition);
 | |
|     // If new change is neither caused by composition nor occurred during
 | |
|     // composition, set mIncludingChangesDuringComposition to false because
 | |
|     // IME doesn't want outdated text changes as text change during current
 | |
|     // composition.
 | |
|     mIncludingChangesDuringComposition = false;
 | |
|   } else {
 | |
|     // Otherwise, set mIncludingChangesDuringComposition to true if either
 | |
|     // oldData or newData includes changes during composition.
 | |
|     mIncludingChangesDuringComposition =
 | |
|       newData.mIncludingChangesDuringComposition ||
 | |
|         oldData.mIncludingChangesDuringComposition;
 | |
|   }
 | |
| 
 | |
|   if (newData.mStartOffset >= oldData.mAddedEndOffset) {
 | |
|     // Case 1:
 | |
|     // If new start is after old end offset of added text, it means that text
 | |
|     // after the modified range is modified.  Like:
 | |
|     // added range of old change:             +----------+
 | |
|     // removed range of new change:                           +----------+
 | |
|     // So, the old start offset is always the smaller offset.
 | |
|     mStartOffset = oldData.mStartOffset;
 | |
|     // The new end offset of removed text is moved by the old change and we
 | |
|     // need to cancel the move of the old change for comparing the offsets in
 | |
|     // same text because it doesn't make sensce to compare offsets in different
 | |
|     // text.
 | |
|     uint32_t newRemovedEndOffsetInOldText =
 | |
|       newData.mRemovedEndOffset - oldData.Difference();
 | |
|     mRemovedEndOffset =
 | |
|       std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
 | |
|     // The new end offset of added text is always the larger offset.
 | |
|     mAddedEndOffset = newData.mAddedEndOffset;
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   if (newData.mStartOffset >= oldData.mStartOffset) {
 | |
|     // If new start is in the modified range, it means that new data changes
 | |
|     // a part or all of the range.
 | |
|     mStartOffset = oldData.mStartOffset;
 | |
|     if (newData.mRemovedEndOffset >= oldData.mAddedEndOffset) {
 | |
|       // Case 2:
 | |
|       // If new end of removed text is greater than old end of added text, it
 | |
|       // means that all or a part of modified range modified again and text
 | |
|       // after the modified range is also modified.  Like:
 | |
|       // added range of old change:             +----------+
 | |
|       // removed range of new change:                   +----------+
 | |
|       // So, the new removed end offset is moved by the old change and we need
 | |
|       // to cancel the move of the old change for comparing the offsets in the
 | |
|       // same text because it doesn't make sense to compare the offsets in
 | |
|       // different text.
 | |
|       uint32_t newRemovedEndOffsetInOldText =
 | |
|         newData.mRemovedEndOffset - oldData.Difference();
 | |
|       mRemovedEndOffset =
 | |
|         std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
 | |
|       // The old end of added text is replaced by new change. So, it should be
 | |
|       // same as the new start.  On the other hand, the new added end offset is
 | |
|       // always same or larger.  Therefore, the merged end offset of added
 | |
|       // text should be the new end offset of added text.
 | |
|       mAddedEndOffset = newData.mAddedEndOffset;
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     // Case 3:
 | |
|     // If new end of removed text is less than old end of added text, it means
 | |
|     // that only a part of the modified range is modified again.  Like:
 | |
|     // added range of old change:             +------------+
 | |
|     // removed range of new change:               +-----+
 | |
|     // So, the new end offset of removed text should be same as the old end
 | |
|     // offset of removed text.  Therefore, the merged end offset of removed
 | |
|     // text should be the old text change's |mRemovedEndOffset|.
 | |
|     mRemovedEndOffset = oldData.mRemovedEndOffset;
 | |
|     // The old end of added text is moved by new change.  So, we need to cancel
 | |
|     // the move of the new change for comparing the offsets in same text.
 | |
|     uint32_t oldAddedEndOffsetInNewText =
 | |
|       oldData.mAddedEndOffset + newData.Difference();
 | |
|     mAddedEndOffset =
 | |
|       std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   if (newData.mRemovedEndOffset >= oldData.mStartOffset) {
 | |
|     // If new end of removed text is greater than old start (and new start is
 | |
|     // less than old start), it means that a part of modified range is modified
 | |
|     // again and some new text before the modified range is also modified.
 | |
|     MOZ_ASSERT(newData.mStartOffset < oldData.mStartOffset,
 | |
|       "new start offset should be less than old one here");
 | |
|     mStartOffset = newData.mStartOffset;
 | |
|     if (newData.mRemovedEndOffset >= oldData.mAddedEndOffset) {
 | |
|       // Case 4:
 | |
|       // If new end of removed text is greater than old end of added text, it
 | |
|       // means that all modified text and text after the modified range is
 | |
|       // modified.  Like:
 | |
|       // added range of old change:             +----------+
 | |
|       // removed range of new change:        +------------------+
 | |
|       // So, the new end of removed text is moved by the old change.  Therefore,
 | |
|       // we need to cancel the move of the old change for comparing the offsets
 | |
|       // in same text because it doesn't make sense to compare the offsets in
 | |
|       // different text.
 | |
|       uint32_t newRemovedEndOffsetInOldText =
 | |
|         newData.mRemovedEndOffset - oldData.Difference();
 | |
|       mRemovedEndOffset =
 | |
|         std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
 | |
|       // The old end of added text is replaced by new change.  So, the old end
 | |
|       // offset of added text is same as new text change's start offset.  Then,
 | |
|       // new change's end offset of added text is always same or larger than
 | |
|       // it.  Therefore, merged end offset of added text is always the new end
 | |
|       // offset of added text.
 | |
|       mAddedEndOffset = newData.mAddedEndOffset;
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     // Case 5:
 | |
|     // If new end of removed text is less than old end of added text, it
 | |
|     // means that only a part of the modified range is modified again.  Like:
 | |
|     // added range of old change:             +----------+
 | |
|     // removed range of new change:      +----------+
 | |
|     // So, the new end of removed text should be same as old end of removed
 | |
|     // text for preventing end of removed text to be modified.  Therefore,
 | |
|     // merged end offset of removed text is always the old end offset of removed
 | |
|     // text.
 | |
|     mRemovedEndOffset = oldData.mRemovedEndOffset;
 | |
|     // The old end of added text is moved by this change.  So, we need to
 | |
|     // cancel the move of the new change for comparing the offsets in same text
 | |
|     // because it doesn't make sense to compare the offsets in different text.
 | |
|     uint32_t oldAddedEndOffsetInNewText =
 | |
|       oldData.mAddedEndOffset + newData.Difference();
 | |
|     mAddedEndOffset =
 | |
|       std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   // Case 6:
 | |
|   // Otherwise, i.e., both new end of added text and new start are less than
 | |
|   // old start, text before the modified range is modified.  Like:
 | |
|   // added range of old change:                  +----------+
 | |
|   // removed range of new change: +----------+
 | |
|   MOZ_ASSERT(newData.mStartOffset < oldData.mStartOffset,
 | |
|     "new start offset should be less than old one here");
 | |
|   mStartOffset = newData.mStartOffset;
 | |
|   MOZ_ASSERT(newData.mRemovedEndOffset < oldData.mRemovedEndOffset,
 | |
|      "new removed end offset should be less than old one here");
 | |
|   mRemovedEndOffset = oldData.mRemovedEndOffset;
 | |
|   // The end of added text should be adjusted with the new difference.
 | |
|   uint32_t oldAddedEndOffsetInNewText =
 | |
|     oldData.mAddedEndOffset + newData.Difference();
 | |
|   mAddedEndOffset =
 | |
|     std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
 | |
| }
 | |
| 
 | |
| #ifdef DEBUG
 | |
| 
 | |
| // Let's test the code of merging multiple text change data in debug build
 | |
| // and crash if one of them fails because this feature is very complex but
 | |
| // cannot be tested with mochitest.
 | |
| void
 | |
| IMENotification::TextChangeDataBase::Test()
 | |
| {
 | |
|   static bool gTestTextChangeEvent = true;
 | |
|   if (!gTestTextChangeEvent) {
 | |
|     return;
 | |
|   }
 | |
|   gTestTextChangeEvent = false;
 | |
| 
 | |
|   /****************************************************************************
 | |
|    * Case 1
 | |
|    ****************************************************************************/
 | |
| 
 | |
|   // Appending text
 | |
|   MergeWith(TextChangeData(10, 10, 20, false, false));
 | |
|   MergeWith(TextChangeData(20, 20, 35, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 1-1-1: mStartOffset should be the first offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 10, // 20 - (20 - 10)
 | |
|     "Test 1-1-2: mRemovedEndOffset should be the first end of removed text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 35,
 | |
|     "Test 1-1-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Removing text (longer line -> shorter line)
 | |
|   MergeWith(TextChangeData(10, 20, 10, false, false));
 | |
|   MergeWith(TextChangeData(10, 30, 10, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 1-2-1: mStartOffset should be the first offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 40, // 30 + (10 - 20)
 | |
|     "Test 1-2-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "with already removed length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 10,
 | |
|     "Test 1-2-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Removing text (shorter line -> longer line)
 | |
|   MergeWith(TextChangeData(10, 20, 10, false, false));
 | |
|   MergeWith(TextChangeData(10, 15, 10, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 1-3-1: mStartOffset should be the first offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 25, // 15 + (10 - 20)
 | |
|     "Test 1-3-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "with already removed length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 10,
 | |
|     "Test 1-3-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Appending text at different point (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(10, 10, 20, false, false));
 | |
|   MergeWith(TextChangeData(55, 55, 60, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 1-4-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 45, // 55 - (10 - 20)
 | |
|     "Test 1-4-2: mRemovedEndOffset should be the the largest end of removed "
 | |
|     "text without already added length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 60,
 | |
|     "Test 1-4-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Removing text at different point (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(10, 20, 10, false, false));
 | |
|   MergeWith(TextChangeData(55, 68, 55, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 1-5-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 78, // 68 - (10 - 20)
 | |
|     "Test 1-5-2: mRemovedEndOffset should be the the largest end of removed "
 | |
|     "text with already removed length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 55,
 | |
|     "Test 1-5-3: mAddedEndOffset should be the largest end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text and append text (becomes longer)
 | |
|   MergeWith(TextChangeData(30, 35, 32, false, false));
 | |
|   MergeWith(TextChangeData(32, 32, 40, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 30,
 | |
|     "Test 1-6-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 35, // 32 - (32 - 35)
 | |
|     "Test 1-6-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 40,
 | |
|     "Test 1-6-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text and append text (becomes shorter)
 | |
|   MergeWith(TextChangeData(30, 35, 32, false, false));
 | |
|   MergeWith(TextChangeData(32, 32, 33, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 30,
 | |
|     "Test 1-7-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 35, // 32 - (32 - 35)
 | |
|     "Test 1-7-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 33,
 | |
|     "Test 1-7-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Removing text and replacing text after first range (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(30, 35, 30, false, false));
 | |
|   MergeWith(TextChangeData(32, 34, 48, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 30,
 | |
|     "Test 1-8-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 39, // 34 - (30 - 35)
 | |
|     "Test 1-8-2: mRemovedEndOffset should be the the first end of removed text "
 | |
|     "without already removed text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 48,
 | |
|     "Test 1-8-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Removing text and replacing text after first range (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(30, 35, 30, false, false));
 | |
|   MergeWith(TextChangeData(32, 38, 36, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 30,
 | |
|     "Test 1-9-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 43, // 38 - (30 - 35)
 | |
|     "Test 1-9-2: mRemovedEndOffset should be the the first end of removed text "
 | |
|     "without already removed text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 36,
 | |
|     "Test 1-9-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   /****************************************************************************
 | |
|    * Case 2
 | |
|    ****************************************************************************/
 | |
| 
 | |
|   // Replacing text in around end of added text (becomes shorter) (not sure
 | |
|   // if actually occurs)
 | |
|   MergeWith(TextChangeData(50, 50, 55, false, false));
 | |
|   MergeWith(TextChangeData(53, 60, 54, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 50,
 | |
|     "Test 2-1-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 55, // 60 - (55 - 50)
 | |
|     "Test 2-1-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already added text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 54,
 | |
|     "Test 2-1-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around end of added text (becomes longer) (not sure
 | |
|   // if actually occurs)
 | |
|   MergeWith(TextChangeData(50, 50, 55, false, false));
 | |
|   MergeWith(TextChangeData(54, 62, 68, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 50,
 | |
|     "Test 2-2-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 57, // 62 - (55 - 50)
 | |
|     "Test 2-2-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already added text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 68,
 | |
|     "Test 2-2-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around end of replaced text (became shorter) (not sure if
 | |
|   // actually occurs)
 | |
|   MergeWith(TextChangeData(36, 48, 45, false, false));
 | |
|   MergeWith(TextChangeData(43, 50, 49, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 36,
 | |
|     "Test 2-3-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 53, // 50 - (45 - 48)
 | |
|     "Test 2-3-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already removed text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 49,
 | |
|     "Test 2-3-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around end of replaced text (became longer) (not sure if
 | |
|   // actually occurs)
 | |
|   MergeWith(TextChangeData(36, 52, 53, false, false));
 | |
|   MergeWith(TextChangeData(43, 68, 61, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 36,
 | |
|     "Test 2-4-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 67, // 68 - (53 - 52)
 | |
|     "Test 2-4-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already added text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 61,
 | |
|     "Test 2-4-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   /****************************************************************************
 | |
|    * Case 3
 | |
|    ****************************************************************************/
 | |
| 
 | |
|   // Appending text in already added text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(10, 10, 20, false, false));
 | |
|   MergeWith(TextChangeData(15, 15, 30, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 3-1-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 10,
 | |
|     "Test 3-1-2: mRemovedEndOffset should be the the first end of removed text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 35, // 20 + (30 - 15)
 | |
|     "Test 3-1-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text in added text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(50, 50, 55, false, false));
 | |
|   MergeWith(TextChangeData(52, 53, 56, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 50,
 | |
|     "Test 3-2-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 50,
 | |
|     "Test 3-2-2: mRemovedEndOffset should be the the first end of removed text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 58, // 55 + (56 - 53)
 | |
|     "Test 3-2-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text in replaced text (became shorter) (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(36, 48, 45, false, false));
 | |
|   MergeWith(TextChangeData(37, 38, 50, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 36,
 | |
|     "Test 3-3-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 48,
 | |
|     "Test 3-3-2: mRemovedEndOffset should be the the first end of removed text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 57, // 45 + (50 - 38)
 | |
|     "Test 3-3-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text in replaced text (became longer) (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(32, 48, 53, false, false));
 | |
|   MergeWith(TextChangeData(43, 50, 52, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 32,
 | |
|     "Test 3-4-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 48,
 | |
|     "Test 3-4-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already added text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 55, // 53 + (52 - 50)
 | |
|     "Test 3-4-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text in replaced text (became shorter) (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(36, 48, 50, false, false));
 | |
|   MergeWith(TextChangeData(37, 49, 47, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 36,
 | |
|     "Test 3-5-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 48,
 | |
|     "Test 3-5-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 48, // 50 + (47 - 49)
 | |
|     "Test 3-5-3: mAddedEndOffset should be the first end of added text without "
 | |
|     "removed text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text in replaced text (became longer) (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(32, 48, 53, false, false));
 | |
|   MergeWith(TextChangeData(43, 50, 47, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 32,
 | |
|     "Test 3-6-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 48,
 | |
|     "Test 3-6-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already added text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 50, // 53 + (47 - 50)
 | |
|     "Test 3-6-3: mAddedEndOffset should be the first end of added text without "
 | |
|     "removed text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   /****************************************************************************
 | |
|    * Case 4
 | |
|    ****************************************************************************/
 | |
| 
 | |
|   // Replacing text all of already append text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(50, 50, 55, false, false));
 | |
|   MergeWith(TextChangeData(44, 66, 68, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 44,
 | |
|     "Test 4-1-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 61, // 66 - (55 - 50)
 | |
|     "Test 4-1-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already added text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 68,
 | |
|     "Test 4-1-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around a point in which text was removed (not sure if
 | |
|   // actually occurs)
 | |
|   MergeWith(TextChangeData(50, 62, 50, false, false));
 | |
|   MergeWith(TextChangeData(44, 66, 68, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 44,
 | |
|     "Test 4-2-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 78, // 66 - (50 - 62)
 | |
|     "Test 4-2-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already removed text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 68,
 | |
|     "Test 4-2-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text all replaced text (became shorter) (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(50, 62, 60, false, false));
 | |
|   MergeWith(TextChangeData(49, 128, 130, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 49,
 | |
|     "Test 4-3-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 130, // 128 - (60 - 62)
 | |
|     "Test 4-3-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "without already removed text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 130,
 | |
|     "Test 4-3-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text all replaced text (became longer) (not sure if actually
 | |
|   // occurs)
 | |
|   MergeWith(TextChangeData(50, 61, 73, false, false));
 | |
|   MergeWith(TextChangeData(44, 100, 50, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 44,
 | |
|     "Test 4-4-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 88, // 100 - (73 - 61)
 | |
|     "Test 4-4-2: mRemovedEndOffset should be the the last end of removed text "
 | |
|     "with already added text length");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 50,
 | |
|     "Test 4-4-3: mAddedEndOffset should be the last end of added text");
 | |
|   Clear();
 | |
| 
 | |
|   /****************************************************************************
 | |
|    * Case 5
 | |
|    ****************************************************************************/
 | |
| 
 | |
|   // Replacing text around start of added text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(50, 50, 55, false, false));
 | |
|   MergeWith(TextChangeData(48, 52, 49, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 48,
 | |
|     "Test 5-1-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 50,
 | |
|     "Test 5-1-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 52, // 55 + (52 - 49)
 | |
|     "Test 5-1-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around start of replaced text (became shorter) (not sure if
 | |
|   // actually occurs)
 | |
|   MergeWith(TextChangeData(50, 60, 58, false, false));
 | |
|   MergeWith(TextChangeData(43, 50, 48, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 43,
 | |
|     "Test 5-2-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 60,
 | |
|     "Test 5-2-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 56, // 58 + (48 - 50)
 | |
|     "Test 5-2-3: mAddedEndOffset should be the first end of added text without "
 | |
|     "removed text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around start of replaced text (became longer) (not sure if
 | |
|   // actually occurs)
 | |
|   MergeWith(TextChangeData(50, 60, 68, false, false));
 | |
|   MergeWith(TextChangeData(43, 55, 53, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 43,
 | |
|     "Test 5-3-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 60,
 | |
|     "Test 5-3-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 66, // 68 + (53 - 55)
 | |
|     "Test 5-3-3: mAddedEndOffset should be the first end of added text without "
 | |
|     "removed text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around start of replaced text (became shorter) (not sure if
 | |
|   // actually occurs)
 | |
|   MergeWith(TextChangeData(50, 60, 58, false, false));
 | |
|   MergeWith(TextChangeData(43, 50, 128, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 43,
 | |
|     "Test 5-4-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 60,
 | |
|     "Test 5-4-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 136, // 58 + (128 - 50)
 | |
|     "Test 5-4-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text around start of replaced text (became longer) (not sure if
 | |
|   // actually occurs)
 | |
|   MergeWith(TextChangeData(50, 60, 68, false, false));
 | |
|   MergeWith(TextChangeData(43, 55, 65, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 43,
 | |
|     "Test 5-5-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 60,
 | |
|     "Test 5-5-2: mRemovedEndOffset should be the the first end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 78, // 68 + (65 - 55)
 | |
|     "Test 5-5-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   /****************************************************************************
 | |
|    * Case 6
 | |
|    ****************************************************************************/
 | |
| 
 | |
|   // Appending text before already added text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(30, 30, 45, false, false));
 | |
|   MergeWith(TextChangeData(10, 10, 20, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 6-1-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 30,
 | |
|     "Test 6-1-2: mRemovedEndOffset should be the the largest end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 55, // 45 + (20 - 10)
 | |
|     "Test 6-1-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "added text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Removing text before already removed text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(30, 35, 30, false, false));
 | |
|   MergeWith(TextChangeData(10, 25, 10, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 10,
 | |
|     "Test 6-2-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 35,
 | |
|     "Test 6-2-2: mRemovedEndOffset should be the the largest end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 15, // 30 - (25 - 10)
 | |
|     "Test 6-2-3: mAddedEndOffset should be the first end of added text with "
 | |
|     "removed text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text before already replaced text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(50, 65, 70, false, false));
 | |
|   MergeWith(TextChangeData(13, 24, 15, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 13,
 | |
|     "Test 6-3-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 65,
 | |
|     "Test 6-3-2: mRemovedEndOffset should be the the largest end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 61, // 70 + (15 - 24)
 | |
|     "Test 6-3-3: mAddedEndOffset should be the first end of added text without "
 | |
|     "removed text length by the new change");
 | |
|   Clear();
 | |
| 
 | |
|   // Replacing text before already replaced text (not sure if actually occurs)
 | |
|   MergeWith(TextChangeData(50, 65, 70, false, false));
 | |
|   MergeWith(TextChangeData(13, 24, 36, false, false));
 | |
|   MOZ_ASSERT(mStartOffset == 13,
 | |
|     "Test 6-4-1: mStartOffset should be the smallest offset");
 | |
|   MOZ_ASSERT(mRemovedEndOffset == 65,
 | |
|     "Test 6-4-2: mRemovedEndOffset should be the the largest end of removed "
 | |
|     "text");
 | |
|   MOZ_ASSERT(mAddedEndOffset == 82, // 70 + (36 - 24)
 | |
|     "Test 6-4-3: mAddedEndOffset should be the first end of added text without "
 | |
|     "removed text length by the new change");
 | |
|   Clear();
 | |
| }
 | |
| 
 | |
| #endif // #ifdef DEBUG
 | |
| 
 | |
| } // namespace widget
 | |
| } // namespace mozilla
 | |
| 
 | |
| #ifdef DEBUG
 | |
| //////////////////////////////////////////////////////////////
 | |
| //
 | |
| // Convert a GUI event message code to a string.
 | |
| // Makes it a lot easier to debug events.
 | |
| //
 | |
| // See gtk/nsWidget.cpp and windows/nsWindow.cpp
 | |
| // for a DebugPrintEvent() function that uses
 | |
| // this.
 | |
| //
 | |
| //////////////////////////////////////////////////////////////
 | |
| /* static */ nsAutoString
 | |
| nsBaseWidget::debug_GuiEventToString(WidgetGUIEvent* aGuiEvent)
 | |
| {
 | |
|   NS_ASSERTION(nullptr != aGuiEvent,"cmon, null gui event.");
 | |
| 
 | |
|   nsAutoString eventName(NS_LITERAL_STRING("UNKNOWN"));
 | |
| 
 | |
| #define _ASSIGN_eventName(_value,_name)\
 | |
| case _value: eventName.AssignLiteral(_name) ; break
 | |
| 
 | |
|   switch(aGuiEvent->mMessage)
 | |
|   {
 | |
|     _ASSIGN_eventName(eBlur,"eBlur");
 | |
|     _ASSIGN_eventName(eDrop,"eDrop");
 | |
|     _ASSIGN_eventName(eDragEnter,"eDragEnter");
 | |
|     _ASSIGN_eventName(eDragExit,"eDragExit");
 | |
|     _ASSIGN_eventName(eDragOver,"eDragOver");
 | |
|     _ASSIGN_eventName(eEditorInput,"eEditorInput");
 | |
|     _ASSIGN_eventName(eFocus,"eFocus");
 | |
|     _ASSIGN_eventName(eFocusIn,"eFocusIn");
 | |
|     _ASSIGN_eventName(eFocusOut,"eFocusOut");
 | |
|     _ASSIGN_eventName(eFormSelect,"eFormSelect");
 | |
|     _ASSIGN_eventName(eFormChange,"eFormChange");
 | |
|     _ASSIGN_eventName(eFormReset,"eFormReset");
 | |
|     _ASSIGN_eventName(eFormSubmit,"eFormSubmit");
 | |
|     _ASSIGN_eventName(eImageAbort,"eImageAbort");
 | |
|     _ASSIGN_eventName(eLoadError,"eLoadError");
 | |
|     _ASSIGN_eventName(eKeyDown,"eKeyDown");
 | |
|     _ASSIGN_eventName(eKeyPress,"eKeyPress");
 | |
|     _ASSIGN_eventName(eKeyUp,"eKeyUp");
 | |
|     _ASSIGN_eventName(eMouseEnterIntoWidget,"eMouseEnterIntoWidget");
 | |
|     _ASSIGN_eventName(eMouseExitFromWidget,"eMouseExitFromWidget");
 | |
|     _ASSIGN_eventName(eMouseDown,"eMouseDown");
 | |
|     _ASSIGN_eventName(eMouseUp,"eMouseUp");
 | |
|     _ASSIGN_eventName(eMouseClick,"eMouseClick");
 | |
|     _ASSIGN_eventName(eMouseAuxClick,"eMouseAuxClick");
 | |
|     _ASSIGN_eventName(eMouseDoubleClick,"eMouseDoubleClick");
 | |
|     _ASSIGN_eventName(eMouseMove,"eMouseMove");
 | |
|     _ASSIGN_eventName(eLoad,"eLoad");
 | |
|     _ASSIGN_eventName(ePopState,"ePopState");
 | |
|     _ASSIGN_eventName(eBeforeScriptExecute,"eBeforeScriptExecute");
 | |
|     _ASSIGN_eventName(eAfterScriptExecute,"eAfterScriptExecute");
 | |
|     _ASSIGN_eventName(eUnload,"eUnload");
 | |
|     _ASSIGN_eventName(eHashChange,"eHashChange");
 | |
|     _ASSIGN_eventName(eReadyStateChange,"eReadyStateChange");
 | |
|     _ASSIGN_eventName(eXULBroadcast, "eXULBroadcast");
 | |
|     _ASSIGN_eventName(eXULCommandUpdate, "eXULCommandUpdate");
 | |
| 
 | |
| #undef _ASSIGN_eventName
 | |
| 
 | |
|   default:
 | |
|     {
 | |
|       char buf[32];
 | |
| 
 | |
|       SprintfLiteral(buf,"UNKNOWN: %d",aGuiEvent->mMessage);
 | |
| 
 | |
|       CopyASCIItoUTF16(buf, eventName);
 | |
|     }
 | |
|     break;
 | |
|   }
 | |
| 
 | |
|   return nsAutoString(eventName);
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| //
 | |
| // Code to deal with paint and event debug prefs.
 | |
| //
 | |
| //////////////////////////////////////////////////////////////
 | |
| struct PrefPair
 | |
| {
 | |
|   const char * name;
 | |
|   bool value;
 | |
| };
 | |
| 
 | |
| static PrefPair debug_PrefValues[] =
 | |
| {
 | |
|   { "nglayout.debug.crossing_event_dumping", false },
 | |
|   { "nglayout.debug.event_dumping", false },
 | |
|   { "nglayout.debug.invalidate_dumping", false },
 | |
|   { "nglayout.debug.motion_event_dumping", false },
 | |
|   { "nglayout.debug.paint_dumping", false },
 | |
|   { "nglayout.debug.paint_flashing", false }
 | |
| };
 | |
| 
 | |
| //////////////////////////////////////////////////////////////
 | |
| bool
 | |
| nsBaseWidget::debug_GetCachedBoolPref(const char * aPrefName)
 | |
| {
 | |
|   NS_ASSERTION(nullptr != aPrefName,"cmon, pref name is null.");
 | |
| 
 | |
|   for (uint32_t i = 0; i < ArrayLength(debug_PrefValues); i++)
 | |
|   {
 | |
|     if (strcmp(debug_PrefValues[i].name, aPrefName) == 0)
 | |
|     {
 | |
|       return debug_PrefValues[i].value;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return false;
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| static void debug_SetCachedBoolPref(const char * aPrefName,bool aValue)
 | |
| {
 | |
|   NS_ASSERTION(nullptr != aPrefName,"cmon, pref name is null.");
 | |
| 
 | |
|   for (uint32_t i = 0; i < ArrayLength(debug_PrefValues); i++)
 | |
|   {
 | |
|     if (strcmp(debug_PrefValues[i].name, aPrefName) == 0)
 | |
|     {
 | |
|       debug_PrefValues[i].value = aValue;
 | |
| 
 | |
|       return;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   NS_ASSERTION(false, "cmon, this code is not reached dude.");
 | |
| }
 | |
| 
 | |
| //////////////////////////////////////////////////////////////
 | |
| class Debug_PrefObserver final : public nsIObserver {
 | |
|     ~Debug_PrefObserver() {}
 | |
| 
 | |
|   public:
 | |
|     NS_DECL_ISUPPORTS
 | |
|     NS_DECL_NSIOBSERVER
 | |
| };
 | |
| 
 | |
| NS_IMPL_ISUPPORTS(Debug_PrefObserver, nsIObserver)
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| Debug_PrefObserver::Observe(nsISupports* subject, const char* topic,
 | |
|                             const char16_t* data)
 | |
| {
 | |
|   NS_ConvertUTF16toUTF8 prefName(data);
 | |
| 
 | |
|   bool value = Preferences::GetBool(prefName.get(), false);
 | |
|   debug_SetCachedBoolPref(prefName.get(), value);
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| //////////////////////////////////////////////////////////////
 | |
| /* static */ void
 | |
| debug_RegisterPrefCallbacks()
 | |
| {
 | |
|   static bool once = true;
 | |
| 
 | |
|   if (!once) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   once = false;
 | |
| 
 | |
|   nsCOMPtr<nsIObserver> obs(new Debug_PrefObserver());
 | |
|   for (uint32_t i = 0; i < ArrayLength(debug_PrefValues); i++) {
 | |
|     // Initialize the pref values
 | |
|     debug_PrefValues[i].value =
 | |
|       Preferences::GetBool(debug_PrefValues[i].name, false);
 | |
| 
 | |
|     if (obs) {
 | |
|       // Register callbacks for when these change
 | |
|       Preferences::AddStrongObserver(obs, debug_PrefValues[i].name);
 | |
|     }
 | |
|   }
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| static int32_t
 | |
| _GetPrintCount()
 | |
| {
 | |
|   static int32_t sCount = 0;
 | |
| 
 | |
|   return ++sCount;
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| /* static */ bool
 | |
| nsBaseWidget::debug_WantPaintFlashing()
 | |
| {
 | |
|   return debug_GetCachedBoolPref("nglayout.debug.paint_flashing");
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| /* static */ void
 | |
| nsBaseWidget::debug_DumpEvent(FILE *                aFileOut,
 | |
|                               nsIWidget *           aWidget,
 | |
|                               WidgetGUIEvent*       aGuiEvent,
 | |
|                               const char*           aWidgetName,
 | |
|                               int32_t               aWindowID)
 | |
| {
 | |
|   if (aGuiEvent->mMessage == eMouseMove) {
 | |
|     if (!debug_GetCachedBoolPref("nglayout.debug.motion_event_dumping"))
 | |
|       return;
 | |
|   }
 | |
| 
 | |
|   if (aGuiEvent->mMessage == eMouseEnterIntoWidget ||
 | |
|       aGuiEvent->mMessage == eMouseExitFromWidget) {
 | |
|     if (!debug_GetCachedBoolPref("nglayout.debug.crossing_event_dumping"))
 | |
|       return;
 | |
|   }
 | |
| 
 | |
|   if (!debug_GetCachedBoolPref("nglayout.debug.event_dumping"))
 | |
|     return;
 | |
| 
 | |
|   NS_LossyConvertUTF16toASCII tempString(debug_GuiEventToString(aGuiEvent).get());
 | |
| 
 | |
|   fprintf(aFileOut,
 | |
|           "%4d %-26s widget=%-8p name=%-12s id=0x%-6x refpt=%d,%d\n",
 | |
|           _GetPrintCount(),
 | |
|           tempString.get(),
 | |
|           (void *) aWidget,
 | |
|           aWidgetName,
 | |
|           aWindowID,
 | |
|           aGuiEvent->mRefPoint.x,
 | |
|           aGuiEvent->mRefPoint.y);
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| /* static */ void
 | |
| nsBaseWidget::debug_DumpPaintEvent(FILE *                aFileOut,
 | |
|                                    nsIWidget *           aWidget,
 | |
|                                    const nsIntRegion &   aRegion,
 | |
|                                    const char *          aWidgetName,
 | |
|                                    int32_t               aWindowID)
 | |
| {
 | |
|   NS_ASSERTION(nullptr != aFileOut,"cmon, null output FILE");
 | |
|   NS_ASSERTION(nullptr != aWidget,"cmon, the widget is null");
 | |
| 
 | |
|   if (!debug_GetCachedBoolPref("nglayout.debug.paint_dumping"))
 | |
|     return;
 | |
| 
 | |
|   nsIntRect rect = aRegion.GetBounds();
 | |
|   fprintf(aFileOut,
 | |
|           "%4d PAINT      widget=%p name=%-12s id=0x%-6x bounds-rect=%3d,%-3d %3d,%-3d",
 | |
|           _GetPrintCount(),
 | |
|           (void *) aWidget,
 | |
|           aWidgetName,
 | |
|           aWindowID,
 | |
|           rect.x, rect.y, rect.width, rect.height
 | |
|     );
 | |
| 
 | |
|   fprintf(aFileOut,"\n");
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| /* static */ void
 | |
| nsBaseWidget::debug_DumpInvalidate(FILE* aFileOut,
 | |
|                                    nsIWidget* aWidget,
 | |
|                                    const LayoutDeviceIntRect* aRect,
 | |
|                                    const char* aWidgetName,
 | |
|                                    int32_t aWindowID)
 | |
| {
 | |
|   if (!debug_GetCachedBoolPref("nglayout.debug.invalidate_dumping"))
 | |
|     return;
 | |
| 
 | |
|   NS_ASSERTION(nullptr != aFileOut,"cmon, null output FILE");
 | |
|   NS_ASSERTION(nullptr != aWidget,"cmon, the widget is null");
 | |
| 
 | |
|   fprintf(aFileOut,
 | |
|           "%4d Invalidate widget=%p name=%-12s id=0x%-6x",
 | |
|           _GetPrintCount(),
 | |
|           (void *) aWidget,
 | |
|           aWidgetName,
 | |
|           aWindowID);
 | |
| 
 | |
|   if (aRect) {
 | |
|     fprintf(aFileOut,
 | |
|             " rect=%3d,%-3d %3d,%-3d",
 | |
|             aRect->x, aRect->y, aRect->width, aRect->height);
 | |
|   } else {
 | |
|     fprintf(aFileOut,
 | |
|             " rect=%-15s",
 | |
|             "none");
 | |
|   }
 | |
| 
 | |
|   fprintf(aFileOut, "\n");
 | |
| }
 | |
| //////////////////////////////////////////////////////////////
 | |
| 
 | |
| #endif // DEBUG
 |