forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			3261 lines
		
	
	
	
		
			117 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			3261 lines
		
	
	
	
		
			117 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
 | 
						|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 | 
						|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 | 
						|
/* This Source Code Form is subject to the terms of the Mozilla Public
 | 
						|
 * 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/. */
 | 
						|
 | 
						|
#include "nsBaseWidget.h"
 | 
						|
 | 
						|
#include <utility>
 | 
						|
 | 
						|
#include "BasicLayers.h"
 | 
						|
#include "ClientLayerManager.h"
 | 
						|
#include "FrameLayerBuilder.h"
 | 
						|
#include "GLConsts.h"
 | 
						|
#include "InputData.h"
 | 
						|
#include "LiveResizeListener.h"
 | 
						|
#include "TouchEvents.h"
 | 
						|
#include "WritingModes.h"
 | 
						|
#include "X11UndefineNone.h"
 | 
						|
#include "base/thread.h"
 | 
						|
#include "mozilla/ArrayUtils.h"
 | 
						|
#include "mozilla/Attributes.h"
 | 
						|
#include "mozilla/GlobalKeyListener.h"
 | 
						|
#include "mozilla/IMEStateManager.h"
 | 
						|
#include "mozilla/MouseEvents.h"
 | 
						|
#include "mozilla/Preferences.h"
 | 
						|
#include "mozilla/PresShell.h"
 | 
						|
#include "mozilla/Sprintf.h"
 | 
						|
#include "mozilla/StaticPrefs_apz.h"
 | 
						|
#include "mozilla/StaticPrefs_dom.h"
 | 
						|
#include "mozilla/StaticPrefs_layers.h"
 | 
						|
#include "mozilla/StaticPrefs_layout.h"
 | 
						|
#include "mozilla/TextEventDispatcher.h"
 | 
						|
#include "mozilla/TextEventDispatcherListener.h"
 | 
						|
#include "mozilla/UniquePtr.h"
 | 
						|
#include "mozilla/Unused.h"
 | 
						|
#include "mozilla/VsyncDispatcher.h"
 | 
						|
#include "mozilla/dom/BrowserParent.h"
 | 
						|
#include "mozilla/dom/ContentChild.h"
 | 
						|
#include "mozilla/dom/Document.h"
 | 
						|
#include "mozilla/gfx/2D.h"
 | 
						|
#include "mozilla/gfx/GPUProcessManager.h"
 | 
						|
#include "mozilla/gfx/gfxVars.h"
 | 
						|
#include "mozilla/layers/APZCCallbackHelper.h"
 | 
						|
#include "mozilla/layers/APZEventState.h"
 | 
						|
#include "mozilla/layers/APZInputBridge.h"
 | 
						|
#include "mozilla/layers/APZThreadUtils.h"
 | 
						|
#include "mozilla/layers/ChromeProcessController.h"
 | 
						|
#include "mozilla/layers/Compositor.h"
 | 
						|
#include "mozilla/layers/CompositorBridgeChild.h"
 | 
						|
#include "mozilla/layers/CompositorBridgeParent.h"
 | 
						|
#include "mozilla/layers/CompositorOptions.h"
 | 
						|
#include "mozilla/layers/IAPZCTreeManager.h"
 | 
						|
#include "mozilla/layers/ImageBridgeChild.h"
 | 
						|
#include "mozilla/layers/InputAPZContext.h"
 | 
						|
#include "mozilla/layers/PLayerTransactionChild.h"
 | 
						|
#include "mozilla/layers/WebRenderLayerManager.h"
 | 
						|
#include "mozilla/webrender/WebRenderTypes.h"
 | 
						|
#include "npapi.h"
 | 
						|
#include "nsAppDirectoryServiceDefs.h"
 | 
						|
#include "nsCOMPtr.h"
 | 
						|
#include "nsContentUtils.h"
 | 
						|
#include "nsDeviceContext.h"
 | 
						|
#include "nsGfxCIID.h"
 | 
						|
#include "nsIAppWindow.h"
 | 
						|
#include "nsIBaseWindow.h"
 | 
						|
#include "nsIContent.h"
 | 
						|
#include "nsIKeyEventInPluginCallback.h"
 | 
						|
#include "nsIScreenManager.h"
 | 
						|
#include "nsISimpleEnumerator.h"
 | 
						|
#include "nsIWidgetListener.h"
 | 
						|
#include "nsRefPtrHashtable.h"
 | 
						|
#include "nsServiceManagerUtils.h"
 | 
						|
#include "nsWidgetsCID.h"
 | 
						|
#include "nsXULPopupManager.h"
 | 
						|
#include "prdtoa.h"
 | 
						|
#include "prenv.h"
 | 
						|
#ifdef ACCESSIBILITY
 | 
						|
#  include "nsAccessibilityService.h"
 | 
						|
#endif
 | 
						|
#include "gfxConfig.h"
 | 
						|
#include "gfxUtils.h"  // for ToDeviceColor
 | 
						|
#include "mozilla/layers/CompositorSession.h"
 | 
						|
#include "VRManagerChild.h"
 | 
						|
#include "gfxConfig.h"
 | 
						|
#include "nsView.h"
 | 
						|
#include "nsViewManager.h"
 | 
						|
 | 
						|
#ifdef DEBUG
 | 
						|
#  include "nsIObserver.h"
 | 
						|
 | 
						|
static void debug_RegisterPrefCallbacks();
 | 
						|
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef NOISY_WIDGET_LEAKS
 | 
						|
static int32_t gNumWidgets;
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef XP_MACOSX
 | 
						|
#  include "nsCocoaFeatures.h"
 | 
						|
#endif
 | 
						|
 | 
						|
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
 | 
						|
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;
 | 
						|
 | 
						|
// 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::widget {
 | 
						|
 | 
						|
void IMENotification::SelectionChangeDataBase::SetWritingMode(
 | 
						|
    const WritingMode& aWritingMode) {
 | 
						|
  mWritingMode = aWritingMode.mWritingMode.bits;
 | 
						|
}
 | 
						|
 | 
						|
WritingMode IMENotification::SelectionChangeDataBase::GetWritingMode() const {
 | 
						|
  return WritingMode(mWritingMode);
 | 
						|
}
 | 
						|
 | 
						|
}  // namespace mozilla::widget
 | 
						|
 | 
						|
NS_IMPL_ISUPPORTS(nsBaseWidget, nsIWidget, nsISupportsWeakReference)
 | 
						|
 | 
						|
//-------------------------------------------------------------------------
 | 
						|
//
 | 
						|
// nsBaseWidget constructor
 | 
						|
//
 | 
						|
//-------------------------------------------------------------------------
 | 
						|
 | 
						|
nsBaseWidget::nsBaseWidget()
 | 
						|
    : mWidgetListener(nullptr),
 | 
						|
      mAttachedWidgetListener(nullptr),
 | 
						|
      mPreviouslyAttachedWidgetListener(nullptr),
 | 
						|
      mLayerManager(nullptr),
 | 
						|
      mCompositorVsyncDispatcher(nullptr),
 | 
						|
      mCursor(eCursor_standard),
 | 
						|
      mBorderStyle(eBorderStyle_none),
 | 
						|
      mBounds(0, 0, 0, 0),
 | 
						|
      mOriginalBounds(nullptr),
 | 
						|
      mClipRectCount(0),
 | 
						|
      mSizeMode(nsSizeMode_Normal),
 | 
						|
      mIsTiled(false),
 | 
						|
      mPopupLevel(ePopupLevelTop),
 | 
						|
      mPopupType(ePopupTypeAny),
 | 
						|
      mHasRemoteContent(false),
 | 
						|
      mFissionWindow(false),
 | 
						|
      mUpdateCursor(true),
 | 
						|
      mUseAttachedEvents(false),
 | 
						|
      mIMEHasFocus(false),
 | 
						|
      mIMEHasQuit(false),
 | 
						|
      mIsFullyOccluded(false) {
 | 
						|
#ifdef NOISY_WIDGET_LEAKS
 | 
						|
  gNumWidgets++;
 | 
						|
  printf("WIDGETS+ = %d\n", gNumWidgets);
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef DEBUG
 | 
						|
  debug_RegisterPrefCallbacks();
 | 
						|
#endif
 | 
						|
 | 
						|
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
 | 
						|
  if (!sPluginWidgetList) {
 | 
						|
    sPluginWidgetList = new nsRefPtrHashtable<nsVoidPtrHashKey, nsIWidget>();
 | 
						|
  }
 | 
						|
#endif
 | 
						|
  mShutdownObserver = new WidgetShutdownObserver(this);
 | 
						|
}
 | 
						|
 | 
						|
NS_IMPL_ISUPPORTS(WidgetShutdownObserver, nsIObserver)
 | 
						|
 | 
						|
WidgetShutdownObserver::WidgetShutdownObserver(nsBaseWidget* aWidget)
 | 
						|
    : mWidget(aWidget), mRegistered(false) {
 | 
						|
  Register();
 | 
						|
}
 | 
						|
 | 
						|
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.
 | 
						|
}
 | 
						|
 | 
						|
NS_IMETHODIMP
 | 
						|
WidgetShutdownObserver::Observe(nsISupports* aSubject, const char* aTopic,
 | 
						|
                                const char16_t* aData) {
 | 
						|
  if (!mWidget) {
 | 
						|
    return NS_OK;
 | 
						|
  }
 | 
						|
  if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
 | 
						|
    RefPtr<nsBaseWidget> widget(mWidget);
 | 
						|
    widget->Shutdown();
 | 
						|
  } else if (!strcmp(aTopic, "quit-application")) {
 | 
						|
    RefPtr<nsBaseWidget> widget(mWidget);
 | 
						|
    widget->QuitIME();
 | 
						|
  }
 | 
						|
  return NS_OK;
 | 
						|
}
 | 
						|
 | 
						|
void WidgetShutdownObserver::Register() {
 | 
						|
  if (!mRegistered) {
 | 
						|
    mRegistered = true;
 | 
						|
    nsContentUtils::RegisterShutdownObserver(this);
 | 
						|
 | 
						|
#ifndef MOZ_WIDGET_ANDROID
 | 
						|
    // The primary purpose of observing quit-application is
 | 
						|
    // to avoid leaking a widget on Windows when nothing else
 | 
						|
    // breaks the circular reference between the widget and
 | 
						|
    // TSFTextStore. However, our Android IME code crashes if
 | 
						|
    // doing this on Android, so let's not do this on Android.
 | 
						|
    // Doing this on Gtk and Mac just in case.
 | 
						|
    nsCOMPtr<nsIObserverService> observerService =
 | 
						|
        mozilla::services::GetObserverService();
 | 
						|
    if (observerService) {
 | 
						|
      observerService->AddObserver(this, "quit-application", false);
 | 
						|
    }
 | 
						|
#endif
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void WidgetShutdownObserver::Unregister() {
 | 
						|
  if (mRegistered) {
 | 
						|
    mWidget = nullptr;
 | 
						|
 | 
						|
#ifndef MOZ_WIDGET_ANDROID
 | 
						|
    nsCOMPtr<nsIObserverService> observerService =
 | 
						|
        mozilla::services::GetObserverService();
 | 
						|
    if (observerService) {
 | 
						|
      observerService->RemoveObserver(this, "quit-application");
 | 
						|
    }
 | 
						|
#endif
 | 
						|
 | 
						|
    nsContentUtils::UnregisterShutdownObserver(this);
 | 
						|
    mRegistered = false;
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::Shutdown() {
 | 
						|
  NotifyLiveResizeStopped();
 | 
						|
  RevokeTransactionIdAllocator();
 | 
						|
  DestroyCompositor();
 | 
						|
  FreeShutdownObserver();
 | 
						|
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
 | 
						|
  if (sPluginWidgetList) {
 | 
						|
    delete sPluginWidgetList;
 | 
						|
    sPluginWidgetList = nullptr;
 | 
						|
  }
 | 
						|
#endif
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::QuitIME() {
 | 
						|
  IMEStateManager::WidgetOnQuit(this);
 | 
						|
  this->mIMEHasQuit = true;
 | 
						|
}
 | 
						|
 | 
						|
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) {
 | 
						|
    MOZ_ASSERT(mCompositorVsyncDispatcherLock.get());
 | 
						|
 | 
						|
    MutexAutoLock lock(*mCompositorVsyncDispatcherLock.get());
 | 
						|
    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 = std::move(mCompositorSession);
 | 
						|
    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) {
 | 
						|
  // 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;
 | 
						|
    mFissionWindow = aInitData->mFissionWindow;
 | 
						|
  }
 | 
						|
 | 
						|
  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 {
 | 
						|
    widget = nsIWidget::CreateChildWindow();
 | 
						|
  }
 | 
						|
 | 
						|
  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 = StaticPrefs::layout_css_devPixelsPerPx();
 | 
						|
 | 
						|
  if (devPixelsPerCSSPixel <= 0.0) {
 | 
						|
    devPixelsPerCSSPixel = GetDefaultScaleInternal();
 | 
						|
  }
 | 
						|
 | 
						|
  return CSSToLayoutDeviceScale(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;
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::GetWorkspaceID(nsAString& workspaceID) {
 | 
						|
  workspaceID.Truncate();
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::MoveToWorkspace(const nsAString& workspaceID) {
 | 
						|
  // Noop.
 | 
						|
}
 | 
						|
 | 
						|
//-------------------------------------------------------------------------
 | 
						|
//
 | 
						|
// Get this component cursor
 | 
						|
//
 | 
						|
//-------------------------------------------------------------------------
 | 
						|
 | 
						|
void nsBaseWidget::SetCursor(nsCursor aCursor, imgIContainer*, uint32_t,
 | 
						|
                             uint32_t) {
 | 
						|
  // We don't support the cursor image.
 | 
						|
  mCursor = aCursor;
 | 
						|
}
 | 
						|
 | 
						|
//-------------------------------------------------------------------------
 | 
						|
//
 | 
						|
// 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() &&
 | 
						|
            StaticPrefs::apz_popups_enabled())));
 | 
						|
}
 | 
						|
 | 
						|
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(NS_IsMainThread());
 | 
						|
  MOZ_ASSERT(mAPZC);
 | 
						|
 | 
						|
  ConfigureAPZControllerThread();
 | 
						|
 | 
						|
  float dpi = GetDPI();
 | 
						|
  // On Android the main thread is not the controller thread
 | 
						|
  APZThreadUtils::RunOnControllerThread(
 | 
						|
      NewRunnableMethod<float>("layers::IAPZCTreeManager::SetDPI", mAPZC,
 | 
						|
                               &IAPZCTreeManager::SetDPI, dpi));
 | 
						|
 | 
						|
  if (StaticPrefs::apz_keyboard_enabled_AtStartup()) {
 | 
						|
    KeyboardMap map = RootWindowGlobalKeyListener::CollectKeyboardShortcuts();
 | 
						|
    // On Android the main thread is not the controller thread
 | 
						|
    APZThreadUtils::RunOnControllerThread(NewRunnableMethod<KeyboardMap>(
 | 
						|
        "layers::IAPZCTreeManager::SetKeyboardMap", mAPZC,
 | 
						|
        &IAPZCTreeManager::SetKeyboardMap, map));
 | 
						|
  }
 | 
						|
 | 
						|
  RefPtr<IAPZCTreeManager> treeManager = mAPZC;  // for capture by the lambdas
 | 
						|
 | 
						|
  ContentReceivedInputBlockCallback callback(
 | 
						|
      [treeManager](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, std::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.Clone()));
 | 
						|
      };
 | 
						|
 | 
						|
  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 (StaticPrefs::dom_w3c_touch_events_enabled() ||
 | 
						|
      StaticPrefs::dom_w3c_pointer_events_enabled()) {
 | 
						|
    RegisterTouchWindow();
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::ConfigureAPZControllerThread() {
 | 
						|
  // By default the controller thread is the main thread.
 | 
						|
  APZThreadUtils::SetControllerThread(NS_GetCurrentThread());
 | 
						|
}
 | 
						|
 | 
						|
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.Clone()));
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::UpdateZoomConstraints(
 | 
						|
    const uint32_t& aPresShellId, const ScrollableLayerGuid::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;
 | 
						|
  }
 | 
						|
  LayersId layersId = mCompositorSession->RootLayerTreeId();
 | 
						|
  mAPZC->UpdateZoomConstraints(
 | 
						|
      ScrollableLayerGuid(layersId, aPresShellId, aViewId), aConstraints);
 | 
						|
}
 | 
						|
 | 
						|
bool nsBaseWidget::AsyncPanZoomEnabled() const { return !!mAPZC; }
 | 
						|
 | 
						|
nsEventStatus nsBaseWidget::ProcessUntransformedAPZEvent(
 | 
						|
    WidgetInputEvent* aEvent, const APZEventResult& aApzResult) {
 | 
						|
  MOZ_ASSERT(NS_IsMainThread());
 | 
						|
  ScrollableLayerGuid targetGuid = aApzResult.mTargetGuid;
 | 
						|
  uint64_t inputBlockId = aApzResult.mInputBlockId;
 | 
						|
  InputAPZContext context(aApzResult.mTargetGuid, inputBlockId,
 | 
						|
                          aApzResult.mStatus);
 | 
						|
 | 
						|
  // 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 && !InputAPZContext::WasRoutedToChildProcess() && inputBlockId) {
 | 
						|
    // EventStateManager did not route the event into the child process.
 | 
						|
    // It's safe to communicate to APZ that the event has been processed.
 | 
						|
    // Note that here aGuid.mLayersId might be different from
 | 
						|
    // mCompositorSession->RootLayerTreeId() because the event might have gotten
 | 
						|
    // hit-tested by APZ to be targeted at a child process, but a parent process
 | 
						|
    // event listener called preventDefault on it. In that case aGuid.mLayersId
 | 
						|
    // would still be the layers id for the child process, but the event would
 | 
						|
    // not have actually gotten routed to the child process. The main-thread
 | 
						|
    // hit-test result therefore needs to use the parent process layers id.
 | 
						|
    LayersId rootLayersId = mCompositorSession->RootLayerTreeId();
 | 
						|
 | 
						|
    UniquePtr<DisplayportSetListener> postLayerization;
 | 
						|
    if (WidgetTouchEvent* touchEvent = aEvent->AsTouchEvent()) {
 | 
						|
      if (touchEvent->mMessage == eTouchStart) {
 | 
						|
        if (StaticPrefs::layout_css_touch_action_enabled()) {
 | 
						|
          APZCCallbackHelper::SendSetAllowedTouchBehaviorNotification(
 | 
						|
              this, GetDocument(), *(original->AsTouchEvent()), inputBlockId,
 | 
						|
              mSetAllowedTouchBehaviorCallback);
 | 
						|
        }
 | 
						|
        postLayerization = APZCCallbackHelper::SendSetTargetAPZCNotification(
 | 
						|
            this, GetDocument(), *(original->AsTouchEvent()), rootLayersId,
 | 
						|
            inputBlockId);
 | 
						|
      }
 | 
						|
      mAPZEventState->ProcessTouchEvent(*touchEvent, targetGuid, inputBlockId,
 | 
						|
                                        aApzResult.mStatus, status);
 | 
						|
    } else if (WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent()) {
 | 
						|
      MOZ_ASSERT(wheelEvent->mFlags.mHandledByAPZ);
 | 
						|
      postLayerization = APZCCallbackHelper::SendSetTargetAPZCNotification(
 | 
						|
          this, GetDocument(), *(original->AsWheelEvent()), rootLayersId,
 | 
						|
          inputBlockId);
 | 
						|
      if (wheelEvent->mCanTriggerSwipe) {
 | 
						|
        ReportSwipeStarted(inputBlockId, wheelEvent->TriggersSwipe());
 | 
						|
      }
 | 
						|
      mAPZEventState->ProcessWheelEvent(*wheelEvent, inputBlockId);
 | 
						|
    } else if (WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent()) {
 | 
						|
      MOZ_ASSERT(mouseEvent->mFlags.mHandledByAPZ);
 | 
						|
      postLayerization = APZCCallbackHelper::SendSetTargetAPZCNotification(
 | 
						|
          this, GetDocument(), *(original->AsMouseEvent()), rootLayersId,
 | 
						|
          inputBlockId);
 | 
						|
      mAPZEventState->ProcessMouseEvent(*mouseEvent, inputBlockId);
 | 
						|
    }
 | 
						|
    if (postLayerization && postLayerization->Register()) {
 | 
						|
      Unused << postLayerization.release();
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  return status;
 | 
						|
}
 | 
						|
 | 
						|
class DispatchWheelEventOnMainThread : public Runnable {
 | 
						|
 public:
 | 
						|
  DispatchWheelEventOnMainThread(const ScrollWheelInput& aWheelInput,
 | 
						|
                                 nsBaseWidget* aWidget,
 | 
						|
                                 const APZEventResult& aAPZResult)
 | 
						|
      : mozilla::Runnable("DispatchWheelEventOnMainThread"),
 | 
						|
        mWheelInput(aWheelInput),
 | 
						|
        mWidget(aWidget),
 | 
						|
        mAPZResult(aAPZResult) {}
 | 
						|
 | 
						|
  NS_IMETHOD Run() override {
 | 
						|
    WidgetWheelEvent wheelEvent = mWheelInput.ToWidgetWheelEvent(mWidget);
 | 
						|
    mWidget->ProcessUntransformedAPZEvent(&wheelEvent, mAPZResult);
 | 
						|
    return NS_OK;
 | 
						|
  }
 | 
						|
 | 
						|
 private:
 | 
						|
  ScrollWheelInput mWheelInput;
 | 
						|
  nsBaseWidget* mWidget;
 | 
						|
  APZEventResult mAPZResult;
 | 
						|
};
 | 
						|
 | 
						|
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) {}
 | 
						|
 | 
						|
  NS_IMETHOD Run() override {
 | 
						|
    APZEventResult result =
 | 
						|
        mAPZC->InputBridge()->ReceiveInputEvent(mWheelInput);
 | 
						|
    if (result.mStatus == nsEventStatus_eConsumeNoDefault) {
 | 
						|
      return NS_OK;
 | 
						|
    }
 | 
						|
    RefPtr<Runnable> r =
 | 
						|
        new DispatchWheelEventOnMainThread(mWheelInput, mWidget, result);
 | 
						|
    mMainMessageLoop->PostTask(r.forget());
 | 
						|
    return NS_OK;
 | 
						|
  }
 | 
						|
 | 
						|
 private:
 | 
						|
  MessageLoop* mMainMessageLoop;
 | 
						|
  ScrollWheelInput mWheelInput;
 | 
						|
  RefPtr<IAPZCTreeManager> mAPZC;
 | 
						|
  nsBaseWidget* mWidget;
 | 
						|
};
 | 
						|
 | 
						|
void nsBaseWidget::DispatchTouchInput(MultiTouchInput& aInput) {
 | 
						|
  MOZ_ASSERT(NS_IsMainThread());
 | 
						|
  if (mAPZC) {
 | 
						|
    MOZ_ASSERT(APZThreadUtils::IsControllerThread());
 | 
						|
 | 
						|
    APZEventResult result = mAPZC->InputBridge()->ReceiveInputEvent(aInput);
 | 
						|
    if (result.mStatus == nsEventStatus_eConsumeNoDefault) {
 | 
						|
      return;
 | 
						|
    }
 | 
						|
 | 
						|
    WidgetTouchEvent event = aInput.ToWidgetTouchEvent(this);
 | 
						|
    ProcessUntransformedAPZEvent(&event, result);
 | 
						|
  } else {
 | 
						|
    WidgetTouchEvent event = aInput.ToWidgetTouchEvent(this);
 | 
						|
 | 
						|
    nsEventStatus status;
 | 
						|
    DispatchEvent(&event, status);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::DispatchPanGestureInput(PanGestureInput& aInput) {
 | 
						|
  MOZ_ASSERT(NS_IsMainThread());
 | 
						|
  if (mAPZC) {
 | 
						|
    MOZ_ASSERT(APZThreadUtils::IsControllerThread());
 | 
						|
 | 
						|
    APZEventResult result = mAPZC->InputBridge()->ReceiveInputEvent(aInput);
 | 
						|
    if (result.mStatus == nsEventStatus_eConsumeNoDefault) {
 | 
						|
      return;
 | 
						|
    }
 | 
						|
 | 
						|
    WidgetWheelEvent event = aInput.ToWidgetWheelEvent(this);
 | 
						|
    ProcessUntransformedAPZEvent(&event, result);
 | 
						|
  } else {
 | 
						|
    WidgetWheelEvent event = aInput.ToWidgetWheelEvent(this);
 | 
						|
 | 
						|
    nsEventStatus status;
 | 
						|
    DispatchEvent(&event, status);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
nsEventStatus nsBaseWidget::DispatchInputEvent(WidgetInputEvent* aEvent) {
 | 
						|
  MOZ_ASSERT(NS_IsMainThread());
 | 
						|
  if (mAPZC) {
 | 
						|
    if (APZThreadUtils::IsControllerThread()) {
 | 
						|
      APZEventResult result = mAPZC->InputBridge()->ReceiveInputEvent(*aEvent);
 | 
						|
      if (result.mStatus == nsEventStatus_eConsumeNoDefault) {
 | 
						|
        return result.mStatus;
 | 
						|
      }
 | 
						|
      return ProcessUntransformedAPZEvent(aEvent, result);
 | 
						|
    }
 | 
						|
    WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent();
 | 
						|
    if (wheelEvent) {
 | 
						|
      RefPtr<Runnable> r =
 | 
						|
          new DispatchWheelInputOnControllerThread(*wheelEvent, mAPZC, this);
 | 
						|
      APZThreadUtils::RunOnControllerThread(std::move(r));
 | 
						|
      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());
 | 
						|
    mAPZC->InputBridge()->ReceiveInputEvent(*aEvent);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
Document* nsBaseWidget::GetDocument() const {
 | 
						|
  if (mWidgetListener) {
 | 
						|
    if (PresShell* 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()) {
 | 
						|
    if (!mCompositorVsyncDispatcherLock) {
 | 
						|
      mCompositorVsyncDispatcherLock =
 | 
						|
          MakeUnique<Mutex>("mCompositorVsyncDispatcherLock");
 | 
						|
    }
 | 
						|
    MutexAutoLock lock(*mCompositorVsyncDispatcherLock.get());
 | 
						|
    if (!mCompositorVsyncDispatcher) {
 | 
						|
      mCompositorVsyncDispatcher = new CompositorVsyncDispatcher();
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
already_AddRefed<CompositorVsyncDispatcher>
 | 
						|
nsBaseWidget::GetCompositorVsyncDispatcher() {
 | 
						|
  MOZ_ASSERT(mCompositorVsyncDispatcherLock.get());
 | 
						|
 | 
						|
  MutexAutoLock lock(*mCompositorVsyncDispatcherLock.get());
 | 
						|
  RefPtr<CompositorVsyncDispatcher> dispatcher = mCompositorVsyncDispatcher;
 | 
						|
  return dispatcher.forget();
 | 
						|
}
 | 
						|
 | 
						|
already_AddRefed<LayerManager> nsBaseWidget::CreateCompositorSession(
 | 
						|
    int aWidth, int aHeight, CompositorOptions* aOptionsOut) {
 | 
						|
  MOZ_ASSERT(aOptionsOut);
 | 
						|
 | 
						|
  do {
 | 
						|
    CreateCompositorVsyncDispatcher();
 | 
						|
 | 
						|
    gfx::GPUProcessManager* gpu = gfx::GPUProcessManager::Get();
 | 
						|
    // Make sure GPU process is ready for use.
 | 
						|
    // If it failed to connect to GPU process, GPU process usage is disabled in
 | 
						|
    // EnsureGPUReady(). It could update gfxVars and gfxConfigs.
 | 
						|
    gpu->EnsureGPUReady();
 | 
						|
 | 
						|
    // 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);
 | 
						|
 | 
						|
    // Bug 1588484 - Advanced Layers is currently disabled for fission windows,
 | 
						|
    // since it doesn't properly support nested RefLayers.
 | 
						|
    bool enableAL =
 | 
						|
        gfx::gfxConfig::IsEnabled(gfx::Feature::ADVANCED_LAYERS) &&
 | 
						|
        (!mFissionWindow || StaticPrefs::layers_advanced_fission_enabled());
 | 
						|
    options.SetUseAdvancedLayers(enableAL);
 | 
						|
 | 
						|
#ifdef MOZ_WIDGET_ANDROID
 | 
						|
    if (!GetNativeData(NS_JAVA_SURFACE)) {
 | 
						|
      options.SetInitiallyPaused(true);
 | 
						|
    }
 | 
						|
#else
 | 
						|
    options.SetInitiallyPaused(CompositorInitiallyPaused());
 | 
						|
#endif
 | 
						|
 | 
						|
    RefPtr<LayerManager> lm;
 | 
						|
    if (options.UseWebRender()) {
 | 
						|
      lm = new WebRenderLayerManager(this);
 | 
						|
    } else {
 | 
						|
      lm = new ClientLayerManager(this);
 | 
						|
    }
 | 
						|
 | 
						|
    bool retry = false;
 | 
						|
    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();
 | 
						|
        // gfxVars::UseDoubleBufferingWithCompositor() is also disabled.
 | 
						|
        gfx::GPUProcessManager::Get()->DisableWebRender(
 | 
						|
            wr::WebRenderError::INITIALIZE);
 | 
						|
      }
 | 
						|
    } else if (lm->AsClientLayerManager() && mCompositorSession) {
 | 
						|
      bool shouldAccelerate = ComputeShouldAccelerate();
 | 
						|
      TextureFactoryIdentifier textureFactoryIdentifier;
 | 
						|
      lm->AsClientLayerManager()->Initialize(
 | 
						|
          mCompositorSession->GetCompositorBridgeChild(), shouldAccelerate,
 | 
						|
          &textureFactoryIdentifier);
 | 
						|
      if (textureFactoryIdentifier.mParentBackend ==
 | 
						|
          LayersBackend::LAYERS_NONE) {
 | 
						|
        DestroyCompositor();
 | 
						|
        lm = nullptr;
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    // 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);
 | 
						|
  } else if (lm->AsClientLayerManager()) {
 | 
						|
    TextureFactoryIdentifier textureFactoryIdentifier =
 | 
						|
        lm->GetTextureFactoryIdentifier();
 | 
						|
    // 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 = std::move(lm);
 | 
						|
 | 
						|
  // 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
 | 
						|
      // BrowserChild 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;
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::ClearCachedWebrenderResources() {
 | 
						|
  if (!mLayerManager || !mLayerManager->AsWebRenderLayerManager()) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
  mLayerManager->ClearCachedResources();
 | 
						|
}
 | 
						|
 | 
						|
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(const DesktopPoint& aOffset) {
 | 
						|
  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(aOffset.x - desktopOffset.x, aOffset.y - desktopOffset.y);
 | 
						|
  } else {
 | 
						|
    LayoutDevicePoint layoutOffset = aOffset * GetDesktopToDeviceScale();
 | 
						|
    Move(layoutOffset.x - clientOffset.x, layoutOffset.y - clientOffset.y);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::ResizeClient(const DesktopSize& aSize, bool aRepaint) {
 | 
						|
  NS_ASSERTION((aSize.width >= 0), "Negative width passed to ResizeClient");
 | 
						|
  NS_ASSERTION((aSize.height >= 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(aSize.width + desktopDelta.width, aSize.height + desktopDelta.height,
 | 
						|
           aRepaint);
 | 
						|
  } else {
 | 
						|
    LayoutDeviceSize layoutSize = aSize * GetDesktopToDeviceScale();
 | 
						|
    Resize(mBounds.Width() + (layoutSize.width - clientBounds.Width()),
 | 
						|
           mBounds.Height() + (layoutSize.height - clientBounds.Height()),
 | 
						|
           aRepaint);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::ResizeClient(const DesktopRect& aRect, bool aRepaint) {
 | 
						|
  NS_ASSERTION((aRect.Width() >= 0), "Negative width passed to ResizeClient");
 | 
						|
  NS_ASSERTION((aRect.Height() >= 0), "Negative height passed to ResizeClient");
 | 
						|
 | 
						|
  LayoutDeviceIntRect clientBounds = GetClientBounds();
 | 
						|
  LayoutDeviceIntPoint clientOffset = GetClientOffset();
 | 
						|
  DesktopToLayoutDeviceScale scale = GetDesktopToDeviceScale();
 | 
						|
 | 
						|
  if (BoundsUseDesktopPixels()) {
 | 
						|
    DesktopPoint desktopOffset = clientOffset / scale;
 | 
						|
    DesktopSize desktopDelta =
 | 
						|
        (LayoutDeviceIntSize(mBounds.Width(), mBounds.Height()) -
 | 
						|
         clientBounds.Size()) /
 | 
						|
        scale;
 | 
						|
    Resize(aRect.X() - desktopOffset.x, aRect.Y() - desktopOffset.y,
 | 
						|
           aRect.Width() + desktopDelta.width,
 | 
						|
           aRect.Height() + desktopDelta.height, aRepaint);
 | 
						|
  } else {
 | 
						|
    LayoutDeviceRect layoutRect = aRect * scale;
 | 
						|
    Resize(layoutRect.X() - clientOffset.x, layoutRect.Y() - clientOffset.y,
 | 
						|
           layoutRect.Width() + mBounds.Width() - clientBounds.Width(),
 | 
						|
           layoutRect.Height() + 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(u"icons"_ns);
 | 
						|
  aFile->Append(u"default"_ns);
 | 
						|
  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;
 | 
						|
 | 
						|
  // Popups are constrained during layout, and we don't want to synchronously
 | 
						|
  // paint from reflow, so bail out... This is not great, but it's no worse than
 | 
						|
  // what we used to do.
 | 
						|
  //
 | 
						|
  // The right fix here is probably making constraint changes go through the
 | 
						|
  // view manager and such.
 | 
						|
  if (mWindowType == eWindowType_popup) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
 | 
						|
  // If the current size doesn't meet the new constraints, trigger a
 | 
						|
  // resize to apply it. Note that, we don't want to invoke Resize if
 | 
						|
  // the new constraints don't affect the current size, because Resize
 | 
						|
  // implementation on some platforms may touch other geometry even if
 | 
						|
  // the size don't need to change.
 | 
						|
  LayoutDeviceIntSize curSize = mBounds.Size();
 | 
						|
  LayoutDeviceIntSize clampedSize =
 | 
						|
      Max(aConstraints.mMinSize, Min(aConstraints.mMaxSize, curSize));
 | 
						|
  if (clampedSize != curSize) {
 | 
						|
    gfx::Size size;
 | 
						|
    if (BoundsUseDesktopPixels()) {
 | 
						|
      DesktopSize desktopSize = clampedSize / GetDesktopToDeviceScale();
 | 
						|
      size = desktopSize.ToUnknownSize();
 | 
						|
    } else {
 | 
						|
      size = gfx::Size(clampedSize.ToUnknownSize());
 | 
						|
    }
 | 
						|
    Resize(size.width, size.height, true);
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
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<nsIAppWindow> window = mWidgetListener->GetAppWindow();
 | 
						|
  nsCOMPtr<nsIBaseWindow> appWindow(do_QueryInterface(window));
 | 
						|
  if (appWindow) {
 | 
						|
    appWindow->Destroy();
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
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::NotifySizeMoveDone() {
 | 
						|
  if (!mWidgetListener) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
  if (PresShell* presShell = mWidgetListener->GetPresShell()) {
 | 
						|
    presShell->WindowSizeMoveDone();
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::NotifyThemeChanged() {
 | 
						|
  if (!mWidgetListener) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
  if (PresShell* presShell = mWidgetListener->GetPresShell()) {
 | 
						|
    presShell->ThemeChanged();
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::NotifyUIStateChanged(UIStateChangeType aShowFocusRings) {
 | 
						|
  if (Document* doc = GetDocument()) {
 | 
						|
    if (nsPIDOMWindowOuter* win = doc->GetWindow()) {
 | 
						|
      win->SetKeyboardIndicators(aShowFocusRings);
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
nsresult nsBaseWidget::NotifyIME(const IMENotification& aIMENotification) {
 | 
						|
  if (mIMEHasQuit) {
 | 
						|
    return NS_OK;
 | 
						|
  }
 | 
						|
  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::NativeIMEContext nsBaseWidget::GetNativeIMEContext() {
 | 
						|
  if (mTextEventDispatcher && mTextEventDispatcher->GetPseudoIMEContext()) {
 | 
						|
    // If we already have a TextEventDispatcher and it's working with
 | 
						|
    // a TextInputProcessor, we need to return pseudo IME context since
 | 
						|
    // TextCompositionArray::IndexOf(nsIWidget*) should return a composition
 | 
						|
    // on the pseudo IME context in such case.
 | 
						|
    NativeIMEContext pseudoIMEContext;
 | 
						|
    pseudoIMEContext.InitWithRawNativeIMEContext(
 | 
						|
        mTextEventDispatcher->GetPseudoIMEContext());
 | 
						|
    return pseudoIMEContext;
 | 
						|
  }
 | 
						|
  return NativeIMEContext(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 ScrollableLayerGuid::ViewID& aViewId,
 | 
						|
                              const CSSRect& aRect, const uint32_t& aFlags) {
 | 
						|
  if (!mCompositorSession || !mAPZC) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
  LayersId layerId = mCompositorSession->RootLayerTreeId();
 | 
						|
  APZThreadUtils::RunOnControllerThread(
 | 
						|
      NewRunnableMethod<ScrollableLayerGuid, CSSRect, uint32_t>(
 | 
						|
          "layers::IAPZCTreeManager::ZoomToRect", mAPZC,
 | 
						|
          &IAPZCTreeManager::ZoomToRect,
 | 
						|
          ScrollableLayerGuid(layerId, aPresShellId, aViewId), aRect, aFlags));
 | 
						|
}
 | 
						|
 | 
						|
#ifdef ACCESSIBILITY
 | 
						|
 | 
						|
a11y::Accessible* nsBaseWidget::GetRootAccessible() {
 | 
						|
  NS_ENSURE_TRUE(mWidgetListener, nullptr);
 | 
						|
 | 
						|
  PresShell* 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);
 | 
						|
 | 
						|
  LayersId 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();
 | 
						|
}
 | 
						|
 | 
						|
mozilla::DesktopToLayoutDeviceScale
 | 
						|
nsBaseWidget::GetDesktopToDeviceScaleByScreen() {
 | 
						|
  return (nsView::GetViewFor(this)->GetViewManager()->GetDeviceContext())
 | 
						|
      ->GetDesktopToDeviceScale();
 | 
						|
}
 | 
						|
 | 
						|
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 remote tab for the current widget, suppress
 | 
						|
  // the displayport on it during the live resize.
 | 
						|
  if (!mWidgetListener) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
  nsCOMPtr<nsIAppWindow> appWindow = mWidgetListener->GetAppWindow();
 | 
						|
  if (!appWindow) {
 | 
						|
    return;
 | 
						|
  }
 | 
						|
  mLiveResizeListeners = appWindow->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)
 | 
						|
  MOZ_ASSERT_UNREACHABLE(
 | 
						|
      "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, RefPtr{this});
 | 
						|
#endif
 | 
						|
}
 | 
						|
 | 
						|
void nsBaseWidget::UnregisterPluginWindowForRemoteUpdates() {
 | 
						|
#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
 | 
						|
  MOZ_ASSERT_UNREACHABLE(
 | 
						|
      "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_DispatchToCurrentThreadQueue(
 | 
						|
      NS_NewRunnableFunction(
 | 
						|
          "AsyncEnableDragDropFn",
 | 
						|
          [this, aEnable, kungFuDeathGrip]() { EnableDragDrop(aEnable); }),
 | 
						|
      kAsyncDragDropTimeout, EventQueuePriority::Idle);
 | 
						|
}
 | 
						|
 | 
						|
// static
 | 
						|
nsIWidget* nsIWidget::LookupRegisteredPluginWindow(uintptr_t aWindowID) {
 | 
						|
#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
 | 
						|
  MOZ_ASSERT_UNREACHABLE(
 | 
						|
      "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)
 | 
						|
  MOZ_ASSERT_UNREACHABLE(
 | 
						|
      "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.IsEmpty()) {
 | 
						|
    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::ToDeviceColor(kScrollCaptureFillColor)),
 | 
						|
      gfx::DrawOptions(1.f, gfx::CompositionOp::OP_SOURCE));
 | 
						|
  aSnapshotDrawTarget->Flush();
 | 
						|
}
 | 
						|
#endif
 | 
						|
 | 
						|
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) {}
 | 
						|
 | 
						|
bool nsIWidget::GetEditCommands(nsIWidget::NativeKeyBindingsType aType,
 | 
						|
                                const WidgetKeyboardEvent& aEvent,
 | 
						|
                                nsTArray<CommandInt>& aCommands) {
 | 
						|
  MOZ_ASSERT(aEvent.IsTrusted());
 | 
						|
  MOZ_ASSERT(aCommands.IsEmpty());
 | 
						|
  return true;
 | 
						|
}
 | 
						|
 | 
						|
already_AddRefed<nsIBidiKeyboard> nsIWidget::CreateBidiKeyboard() {
 | 
						|
  if (XRE_IsContentProcess()) {
 | 
						|
    return CreateBidiKeyboardContentProcess();
 | 
						|
  }
 | 
						|
  return CreateBidiKeyboardInner();
 | 
						|
}
 | 
						|
 | 
						|
#ifdef ANDROID
 | 
						|
already_AddRefed<nsIBidiKeyboard> nsIWidget::CreateBidiKeyboardInner() {
 | 
						|
  // no bidi keyboard implementation
 | 
						|
  return nullptr;
 | 
						|
}
 | 
						|
#endif
 | 
						|
 | 
						|
namespace mozilla::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 mozilla::widget
 | 
						|
 | 
						|
#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(u"UNKNOWN"_ns);
 | 
						|
 | 
						|
#  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: {
 | 
						|
      eventName.AssignLiteral("UNKNOWN: ");
 | 
						|
      eventName.AppendInt(aGuiEvent->mMessage);
 | 
						|
    } 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},
 | 
						|
    {"nglayout.debug.paint_flashing_chrome", 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() = default;
 | 
						|
 | 
						|
 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
 | 
						|
      nsCString name;
 | 
						|
      name.AssignLiteral(debug_PrefValues[i].name,
 | 
						|
                         strlen(debug_PrefValues[i].name));
 | 
						|
      Preferences::AddStrongObserver(obs, 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
 |