/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- * vim: sw=2 ts=8 et : */ /* 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 "base/basictypes.h" #include "ClientLayerManager.h" #include "gfxPlatform.h" #include "mozilla/dom/TabChild.h" #include "mozilla/Hal.h" #include "mozilla/IMEStateManager.h" #include "mozilla/layers/APZChild.h" #include "mozilla/layers/PLayerTransactionChild.h" #include "mozilla/Preferences.h" #include "mozilla/TextComposition.h" #include "mozilla/TextEvents.h" #include "mozilla/Unused.h" #include "PuppetWidget.h" #include "nsContentUtils.h" #include "nsIWidgetListener.h" #include "imgIContainer.h" #include "nsView.h" using namespace mozilla; using namespace mozilla::dom; using namespace mozilla::hal; using namespace mozilla::gfx; using namespace mozilla::layers; using namespace mozilla::widget; static void InvalidateRegion(nsIWidget* aWidget, const LayoutDeviceIntRegion& aRegion) { for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) { aWidget->Invalidate(iter.Get()); } } /*static*/ already_AddRefed<nsIWidget> nsIWidget::CreatePuppetWidget(TabChild* aTabChild) { MOZ_ASSERT(!aTabChild || nsIWidget::UsePuppetWidgets(), "PuppetWidgets not allowed in this configuration"); nsCOMPtr<nsIWidget> widget = new PuppetWidget(aTabChild); return widget.forget(); } namespace mozilla { namespace widget { static bool IsPopup(const nsWidgetInitData* aInitData) { return aInitData && aInitData->mWindowType == eWindowType_popup; } static bool MightNeedIMEFocus(const nsWidgetInitData* aInitData) { // In the puppet-widget world, popup widgets are just dummies and // shouldn't try to mess with IME state. #ifdef MOZ_CROSS_PROCESS_IME return !IsPopup(aInitData); #else return false; #endif } // Arbitrary, fungible. const size_t PuppetWidget::kMaxDimension = 4000; NS_IMPL_ISUPPORTS_INHERITED0(PuppetWidget, nsBaseWidget) PuppetWidget::PuppetWidget(TabChild* aTabChild) : mTabChild(aTabChild) , mMemoryPressureObserver(nullptr) , mDPI(-1) , mRounding(-1) , mDefaultScale(-1) , mCursorHotspotX(0) , mCursorHotspotY(0) , mNativeKeyCommandsValid(false) { MOZ_COUNT_CTOR(PuppetWidget); mSingleLineCommands.SetCapacity(4); mMultiLineCommands.SetCapacity(4); mRichTextCommands.SetCapacity(4); // Setting 'Unknown' means "not yet cached". mInputContext.mIMEState.mEnabled = IMEState::UNKNOWN; } PuppetWidget::~PuppetWidget() { MOZ_COUNT_DTOR(PuppetWidget); Destroy(); } void PuppetWidget::InfallibleCreate(nsIWidget* aParent, nsNativeWidget aNativeParent, const LayoutDeviceIntRect& aRect, nsWidgetInitData* aInitData) { MOZ_ASSERT(!aNativeParent, "got a non-Puppet native parent"); BaseCreate(nullptr, aInitData); mBounds = aRect; mEnabled = true; mVisible = true; mDrawTarget = gfxPlatform::GetPlatform()-> CreateOffscreenContentDrawTarget(IntSize(1, 1), SurfaceFormat::B8G8R8A8); mNeedIMEStateInit = MightNeedIMEFocus(aInitData); PuppetWidget* parent = static_cast<PuppetWidget*>(aParent); if (parent) { parent->SetChild(this); mLayerManager = parent->GetLayerManager(); } else { Resize(mBounds.x, mBounds.y, mBounds.width, mBounds.height, false); } nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService(); if (obs) { mMemoryPressureObserver = new MemoryPressureObserver(this); obs->AddObserver(mMemoryPressureObserver, "memory-pressure", false); } } nsresult PuppetWidget::Create(nsIWidget* aParent, nsNativeWidget aNativeParent, const LayoutDeviceIntRect& aRect, nsWidgetInitData* aInitData) { InfallibleCreate(aParent, aNativeParent, aRect, aInitData); return NS_OK; } void PuppetWidget::InitIMEState() { MOZ_ASSERT(mTabChild); if (mNeedIMEStateInit) { mContentCache.Clear(); mTabChild->SendUpdateContentCache(mContentCache); mIMEPreferenceOfParent = nsIMEUpdatePreference(); mNeedIMEStateInit = false; } } already_AddRefed<nsIWidget> PuppetWidget::CreateChild(const LayoutDeviceIntRect& aRect, nsWidgetInitData* aInitData, bool aForceUseIWidgetParent) { bool isPopup = IsPopup(aInitData); nsCOMPtr<nsIWidget> widget = nsIWidget::CreatePuppetWidget(mTabChild); return ((widget && NS_SUCCEEDED(widget->Create(isPopup ? nullptr: this, nullptr, aRect, aInitData))) ? widget.forget() : nullptr); } void PuppetWidget::Destroy() { if (mOnDestroyCalled) { return; } mOnDestroyCalled = true; Base::OnDestroy(); Base::Destroy(); mPaintTask.Revoke(); if (mMemoryPressureObserver) { mMemoryPressureObserver->Remove(); } mMemoryPressureObserver = nullptr; mChild = nullptr; if (mLayerManager) { mLayerManager->Destroy(); } mLayerManager = nullptr; mTabChild = nullptr; } NS_IMETHODIMP PuppetWidget::Show(bool aState) { NS_ASSERTION(mEnabled, "does it make sense to Show()/Hide() a disabled widget?"); bool wasVisible = mVisible; mVisible = aState; if (mChild) { mChild->mVisible = aState; } if (!wasVisible && mVisible) { // The previously attached widget listener is handy if // we're transitioning from page to page without dropping // layers (since we'll continue to show the old layers // associated with that old widget listener). If the // PuppetWidget was hidden, those layers are dropped, // so the previously attached widget listener is really // of no use anymore (and is actually actively harmful - see // bug 1323586). mPreviouslyAttachedWidgetListener = nullptr; Resize(mBounds.width, mBounds.height, false); Invalidate(mBounds); } return NS_OK; } NS_IMETHODIMP PuppetWidget::Resize(double aWidth, double aHeight, bool aRepaint) { LayoutDeviceIntRect oldBounds = mBounds; mBounds.SizeTo(LayoutDeviceIntSize(NSToIntRound(aWidth), NSToIntRound(aHeight))); if (mChild) { return mChild->Resize(aWidth, aHeight, aRepaint); } // XXX: roc says that |aRepaint| dictates whether or not to // invalidate the expanded area if (oldBounds.Size() < mBounds.Size() && aRepaint) { LayoutDeviceIntRegion dirty(mBounds); dirty.Sub(dirty, oldBounds); InvalidateRegion(this, dirty); } // call WindowResized() on both the current listener, and possibly // also the previous one if we're in a state where we're drawing that one // because the current one is paint suppressed if (!oldBounds.IsEqualEdges(mBounds) && mAttachedWidgetListener) { if (GetCurrentWidgetListener() && GetCurrentWidgetListener() != mAttachedWidgetListener) { GetCurrentWidgetListener()->WindowResized(this, mBounds.width, mBounds.height); } mAttachedWidgetListener->WindowResized(this, mBounds.width, mBounds.height); } return NS_OK; } nsresult PuppetWidget::ConfigureChildren(const nsTArray<Configuration>& aConfigurations) { for (uint32_t i = 0; i < aConfigurations.Length(); ++i) { const Configuration& configuration = aConfigurations[i]; PuppetWidget* w = static_cast<PuppetWidget*>(configuration.mChild.get()); NS_ASSERTION(w->GetParent() == this, "Configured widget is not a child"); w->SetWindowClipRegion(configuration.mClipRegion, true); LayoutDeviceIntRect bounds = w->GetBounds(); if (bounds.Size() != configuration.mBounds.Size()) { w->Resize(configuration.mBounds.x, configuration.mBounds.y, configuration.mBounds.width, configuration.mBounds.height, true); } else if (bounds.TopLeft() != configuration.mBounds.TopLeft()) { w->Move(configuration.mBounds.x, configuration.mBounds.y); } w->SetWindowClipRegion(configuration.mClipRegion, false); } return NS_OK; } NS_IMETHODIMP PuppetWidget::SetFocus(bool aRaise) { if (aRaise && mTabChild) { mTabChild->SendRequestFocus(true); } return NS_OK; } NS_IMETHODIMP PuppetWidget::Invalidate(const LayoutDeviceIntRect& aRect) { #ifdef DEBUG debug_DumpInvalidate(stderr, this, &aRect, "PuppetWidget", 0); #endif if (mChild) { return mChild->Invalidate(aRect); } mDirtyRegion.Or(mDirtyRegion, aRect); if (!mDirtyRegion.IsEmpty() && !mPaintTask.IsPending()) { mPaintTask = new PaintTask(this); return NS_DispatchToCurrentThread(mPaintTask.get()); } return NS_OK; } void PuppetWidget::InitEvent(WidgetGUIEvent& event, LayoutDeviceIntPoint* aPoint) { if (nullptr == aPoint) { event.mRefPoint = LayoutDeviceIntPoint(0, 0); } else { // use the point override if provided event.mRefPoint = *aPoint; } event.mTime = PR_Now() / 1000; } NS_IMETHODIMP PuppetWidget::DispatchEvent(WidgetGUIEvent* event, nsEventStatus& aStatus) { #ifdef DEBUG debug_DumpEvent(stdout, event->mWidget, event, "PuppetWidget", 0); #endif MOZ_ASSERT(!mChild || mChild->mWindowType == eWindowType_popup, "Unexpected event dispatch!"); AutoCacheNativeKeyCommands autoCache(this); if (event->mFlags.mIsSynthesizedForTests && !mNativeKeyCommandsValid) { WidgetKeyboardEvent* keyEvent = event->AsKeyboardEvent(); if (keyEvent) { mTabChild->RequestNativeKeyBindings(&autoCache, keyEvent); } } if (event->mClass == eCompositionEventClass) { // Store the latest native IME context of parent process's widget or // TextEventDispatcher if it's in this process. WidgetCompositionEvent* compositionEvent = event->AsCompositionEvent(); #ifdef DEBUG if (mNativeIMEContext.IsValid() && mNativeIMEContext != compositionEvent->mNativeIMEContext) { RefPtr<TextComposition> composition = IMEStateManager::GetTextCompositionFor(this); MOZ_ASSERT(!composition, "When there is composition caused by old native IME context, " "composition events caused by different native IME context are not " "allowed"); } #endif // #ifdef DEBUG mNativeIMEContext = compositionEvent->mNativeIMEContext; } aStatus = nsEventStatus_eIgnore; if (GetCurrentWidgetListener()) { aStatus = GetCurrentWidgetListener()->HandleEvent(event, mUseAttachedEvents); } return NS_OK; } nsEventStatus PuppetWidget::DispatchInputEvent(WidgetInputEvent* aEvent) { if (!AsyncPanZoomEnabled()) { nsEventStatus status = nsEventStatus_eIgnore; DispatchEvent(aEvent, status); return status; } if (!mTabChild) { return nsEventStatus_eIgnore; } switch (aEvent->mClass) { case eWheelEventClass: Unused << mTabChild->SendDispatchWheelEvent(*aEvent->AsWheelEvent()); break; case eMouseEventClass: Unused << mTabChild->SendDispatchMouseEvent(*aEvent->AsMouseEvent()); break; case eKeyboardEventClass: Unused << mTabChild->SendDispatchKeyboardEvent(*aEvent->AsKeyboardEvent()); break; default: MOZ_ASSERT_UNREACHABLE("unsupported event type"); } return nsEventStatus_eIgnore; } nsresult PuppetWidget::SynthesizeNativeKeyEvent(int32_t aNativeKeyboardLayout, int32_t aNativeKeyCode, uint32_t aModifierFlags, const nsAString& aCharacters, const nsAString& aUnmodifiedCharacters, nsIObserver* aObserver) { AutoObserverNotifier notifier(aObserver, "keyevent"); if (!mTabChild) { return NS_ERROR_FAILURE; } mTabChild->SendSynthesizeNativeKeyEvent(aNativeKeyboardLayout, aNativeKeyCode, aModifierFlags, nsString(aCharacters), nsString(aUnmodifiedCharacters), notifier.SaveObserver()); return NS_OK; } nsresult PuppetWidget::SynthesizeNativeMouseEvent(mozilla::LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage, uint32_t aModifierFlags, nsIObserver* aObserver) { AutoObserverNotifier notifier(aObserver, "mouseevent"); if (!mTabChild) { return NS_ERROR_FAILURE; } mTabChild->SendSynthesizeNativeMouseEvent(aPoint, aNativeMessage, aModifierFlags, notifier.SaveObserver()); return NS_OK; } nsresult PuppetWidget::SynthesizeNativeMouseMove(mozilla::LayoutDeviceIntPoint aPoint, nsIObserver* aObserver) { AutoObserverNotifier notifier(aObserver, "mousemove"); if (!mTabChild) { return NS_ERROR_FAILURE; } mTabChild->SendSynthesizeNativeMouseMove(aPoint, notifier.SaveObserver()); return NS_OK; } nsresult PuppetWidget::SynthesizeNativeMouseScrollEvent(mozilla::LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage, double aDeltaX, double aDeltaY, double aDeltaZ, uint32_t aModifierFlags, uint32_t aAdditionalFlags, nsIObserver* aObserver) { AutoObserverNotifier notifier(aObserver, "mousescrollevent"); if (!mTabChild) { return NS_ERROR_FAILURE; } mTabChild->SendSynthesizeNativeMouseScrollEvent(aPoint, aNativeMessage, aDeltaX, aDeltaY, aDeltaZ, aModifierFlags, aAdditionalFlags, notifier.SaveObserver()); return NS_OK; } nsresult PuppetWidget::SynthesizeNativeTouchPoint(uint32_t aPointerId, TouchPointerState aPointerState, LayoutDeviceIntPoint aPoint, double aPointerPressure, uint32_t aPointerOrientation, nsIObserver* aObserver) { AutoObserverNotifier notifier(aObserver, "touchpoint"); if (!mTabChild) { return NS_ERROR_FAILURE; } mTabChild->SendSynthesizeNativeTouchPoint(aPointerId, aPointerState, aPoint, aPointerPressure, aPointerOrientation, notifier.SaveObserver()); return NS_OK; } nsresult PuppetWidget::SynthesizeNativeTouchTap(LayoutDeviceIntPoint aPoint, bool aLongTap, nsIObserver* aObserver) { AutoObserverNotifier notifier(aObserver, "touchtap"); if (!mTabChild) { return NS_ERROR_FAILURE; } mTabChild->SendSynthesizeNativeTouchTap(aPoint, aLongTap, notifier.SaveObserver()); return NS_OK; } nsresult PuppetWidget::ClearNativeTouchSequence(nsIObserver* aObserver) { AutoObserverNotifier notifier(aObserver, "cleartouch"); if (!mTabChild) { return NS_ERROR_FAILURE; } mTabChild->SendClearNativeTouchSequence(notifier.SaveObserver()); return NS_OK; } void PuppetWidget::SetConfirmedTargetAPZC(uint64_t aInputBlockId, const nsTArray<ScrollableLayerGuid>& aTargets) const { if (mTabChild) { mTabChild->SetTargetAPZC(aInputBlockId, aTargets); } } void PuppetWidget::UpdateZoomConstraints(const uint32_t& aPresShellId, const FrameMetrics::ViewID& aViewId, const Maybe<ZoomConstraints>& aConstraints) { if (mTabChild) { mTabChild->DoUpdateZoomConstraints(aPresShellId, aViewId, aConstraints); } } bool PuppetWidget::AsyncPanZoomEnabled() const { return mTabChild && mTabChild->AsyncPanZoomEnabled(); } NS_IMETHODIMP_(bool) PuppetWidget::ExecuteNativeKeyBinding(NativeKeyBindingsType aType, const mozilla::WidgetKeyboardEvent& aEvent, DoCommandCallback aCallback, void* aCallbackData) { AutoCacheNativeKeyCommands autoCache(this); if (!aEvent.mWidget && !mNativeKeyCommandsValid) { MOZ_ASSERT(!aEvent.mFlags.mIsSynthesizedForTests); // Abort if untrusted to avoid leaking system settings if (NS_WARN_IF(!aEvent.IsTrusted())) { return false; } mTabChild->RequestNativeKeyBindings(&autoCache, &aEvent); } MOZ_ASSERT(mNativeKeyCommandsValid); const nsTArray<mozilla::CommandInt>* commands = nullptr; switch (aType) { case nsIWidget::NativeKeyBindingsForSingleLineEditor: commands = &mSingleLineCommands; break; case nsIWidget::NativeKeyBindingsForMultiLineEditor: commands = &mMultiLineCommands; break; case nsIWidget::NativeKeyBindingsForRichTextEditor: commands = &mRichTextCommands; break; default: MOZ_CRASH("Invalid type"); break; } if (commands->IsEmpty()) { return false; } for (uint32_t i = 0; i < commands->Length(); i++) { aCallback(static_cast<mozilla::Command>((*commands)[i]), aCallbackData); } return true; } LayerManager* PuppetWidget::GetLayerManager(PLayerTransactionChild* aShadowManager, LayersBackend aBackendHint, LayerManagerPersistence aPersistence) { if (!mLayerManager) { mLayerManager = new ClientLayerManager(this); } ShadowLayerForwarder* lf = mLayerManager->AsShadowForwarder(); if (lf && !lf->HasShadowManager() && aShadowManager) { lf->SetShadowManager(aShadowManager); } return mLayerManager; } LayerManager* PuppetWidget::RecreateLayerManager(PLayerTransactionChild* aShadowManager) { mLayerManager = new ClientLayerManager(this); if (ShadowLayerForwarder* lf = mLayerManager->AsShadowForwarder()) { lf->SetShadowManager(aShadowManager); } return mLayerManager; } nsresult PuppetWidget::RequestIMEToCommitComposition(bool aCancel) { #ifdef MOZ_CROSS_PROCESS_IME if (!mTabChild) { return NS_ERROR_FAILURE; } MOZ_ASSERT(!Destroyed()); // There must not be composition which is caused by the PuppetWidget instance. if (NS_WARN_IF(!mNativeIMEContext.IsValid())) { return NS_OK; } RefPtr<TextComposition> composition = IMEStateManager::GetTextCompositionFor(this); // This method shouldn't be called when there is no text composition instance. if (NS_WARN_IF(!composition)) { return NS_OK; } bool isCommitted = false; nsAutoString committedString; if (NS_WARN_IF(!mTabChild->SendRequestIMEToCommitComposition( aCancel, &isCommitted, &committedString))) { return NS_ERROR_FAILURE; } // If the composition wasn't committed synchronously, we need to wait async // composition events for destroying the TextComposition instance. if (!isCommitted) { return NS_OK; } // Dispatch eCompositionCommit event. WidgetCompositionEvent compositionCommitEvent(true, eCompositionCommit, this); InitEvent(compositionCommitEvent, nullptr); compositionCommitEvent.mData = committedString; nsEventStatus status = nsEventStatus_eIgnore; DispatchEvent(&compositionCommitEvent, status); // NOTE: PuppetWidget might be destroyed already. #endif // #ifdef MOZ_CROSS_PROCESS_IME return NS_OK; } nsresult PuppetWidget::NotifyIMEInternal(const IMENotification& aIMENotification) { switch (aIMENotification.mMessage) { case REQUEST_TO_COMMIT_COMPOSITION: return RequestIMEToCommitComposition(false); case REQUEST_TO_CANCEL_COMPOSITION: return RequestIMEToCommitComposition(true); case NOTIFY_IME_OF_FOCUS: case NOTIFY_IME_OF_BLUR: return NotifyIMEOfFocusChange(aIMENotification); case NOTIFY_IME_OF_SELECTION_CHANGE: return NotifyIMEOfSelectionChange(aIMENotification); case NOTIFY_IME_OF_TEXT_CHANGE: return NotifyIMEOfTextChange(aIMENotification); case NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED: return NotifyIMEOfCompositionUpdate(aIMENotification); case NOTIFY_IME_OF_MOUSE_BUTTON_EVENT: return NotifyIMEOfMouseButtonEvent(aIMENotification); case NOTIFY_IME_OF_POSITION_CHANGE: return NotifyIMEOfPositionChange(aIMENotification); default: return NS_ERROR_NOT_IMPLEMENTED; } } NS_IMETHODIMP PuppetWidget::StartPluginIME(const mozilla::WidgetKeyboardEvent& aKeyboardEvent, int32_t aPanelX, int32_t aPanelY, nsString& aCommitted) { if (!mTabChild || !mTabChild->SendStartPluginIME(aKeyboardEvent, aPanelX, aPanelY, &aCommitted)) { return NS_ERROR_FAILURE; } return NS_OK; } void PuppetWidget::SetPluginFocused(bool& aFocused) { if (mTabChild) { mTabChild->SendSetPluginFocused(aFocused); } } void PuppetWidget::DefaultProcOfPluginEvent(const WidgetPluginEvent& aEvent) { if (!mTabChild) { return; } mTabChild->SendDefaultProcOfPluginEvent(aEvent); } NS_IMETHODIMP_(void) PuppetWidget::SetInputContext(const InputContext& aContext, const InputContextAction& aAction) { mInputContext = aContext; // Any widget instances cannot cache IME open state because IME open state // can be changed by user but native IME may not notify us of changing the // open state on some platforms. mInputContext.mIMEState.mOpen = IMEState::OPEN_STATE_NOT_SUPPORTED; #ifndef MOZ_CROSS_PROCESS_IME return; #endif if (!mTabChild) { return; } mTabChild->SendSetInputContext( static_cast<int32_t>(aContext.mIMEState.mEnabled), static_cast<int32_t>(aContext.mIMEState.mOpen), aContext.mHTMLInputType, aContext.mHTMLInputInputmode, aContext.mActionHint, static_cast<int32_t>(aAction.mCause), static_cast<int32_t>(aAction.mFocusChange)); } NS_IMETHODIMP_(InputContext) PuppetWidget::GetInputContext() { #ifndef MOZ_CROSS_PROCESS_IME return InputContext(); #endif // XXX Currently, we don't support retrieving IME open state from child // process. // When this widget caches input context and currently managed by // IMEStateManager, the cache is valid. Only in this case, we can // avoid to use synchronous IPC. if (mInputContext.mIMEState.mEnabled != IMEState::UNKNOWN && IMEStateManager::GetWidgetForActiveInputContext() == this) { return mInputContext; } NS_WARNING("PuppetWidget::GetInputContext() needs to retrieve it with IPC"); // Don't cache InputContext here because this process isn't managing IME // state of the chrome widget. So, we cannot modify mInputContext when // chrome widget is set to new context. InputContext context; if (mTabChild) { int32_t enabled, open; mTabChild->SendGetInputContext(&enabled, &open); context.mIMEState.mEnabled = static_cast<IMEState::Enabled>(enabled); context.mIMEState.mOpen = static_cast<IMEState::Open>(open); } return context; } NS_IMETHODIMP_(NativeIMEContext) PuppetWidget::GetNativeIMEContext() { return mNativeIMEContext; } nsresult PuppetWidget::NotifyIMEOfFocusChange(const IMENotification& aIMENotification) { #ifndef MOZ_CROSS_PROCESS_IME return NS_OK; #endif if (!mTabChild) return NS_ERROR_FAILURE; bool gotFocus = aIMENotification.mMessage == NOTIFY_IME_OF_FOCUS; if (gotFocus) { if (mInputContext.mIMEState.mEnabled != IMEState::PLUGIN) { // When IME gets focus, we should initalize all information of the // content. if (NS_WARN_IF(!mContentCache.CacheAll(this, &aIMENotification))) { return NS_ERROR_FAILURE; } } else { // However, if a plugin has focus, only the editor rect information is // available. if (NS_WARN_IF(!mContentCache.CacheEditorRect(this, &aIMENotification))) { return NS_ERROR_FAILURE; } } } else { // When IME loses focus, we don't need to store anything. mContentCache.Clear(); } mIMEPreferenceOfParent = nsIMEUpdatePreference(); if (!mTabChild->SendNotifyIMEFocus(mContentCache, aIMENotification, &mIMEPreferenceOfParent)) { return NS_ERROR_FAILURE; } return NS_OK; } nsresult PuppetWidget::NotifyIMEOfCompositionUpdate( const IMENotification& aIMENotification) { #ifndef MOZ_CROSS_PROCESS_IME return NS_OK; #endif NS_ENSURE_TRUE(mTabChild, NS_ERROR_FAILURE); if (mInputContext.mIMEState.mEnabled != IMEState::PLUGIN && NS_WARN_IF(!mContentCache.CacheSelection(this, &aIMENotification))) { return NS_ERROR_FAILURE; } mTabChild->SendNotifyIMECompositionUpdate(mContentCache, aIMENotification); return NS_OK; } nsIMEUpdatePreference PuppetWidget::GetIMEUpdatePreference() { #ifdef MOZ_CROSS_PROCESS_IME // e10s requires IME content cache in in the TabParent for handling query // content event only with the parent process. Therefore, this process // needs to receive a lot of information from the focused editor to sent // the latest content to the parent process. if (mInputContext.mIMEState.mEnabled == IMEState::PLUGIN) { // But if a plugin has focus, we cannot receive text nor selection change // in the plugin. Therefore, PuppetWidget needs to receive only position // change event for updating the editor rect cache. return nsIMEUpdatePreference(mIMEPreferenceOfParent.mWantUpdates | nsIMEUpdatePreference::NOTIFY_POSITION_CHANGE); } return nsIMEUpdatePreference(mIMEPreferenceOfParent.mWantUpdates | nsIMEUpdatePreference::NOTIFY_TEXT_CHANGE | nsIMEUpdatePreference::NOTIFY_POSITION_CHANGE ); #else // B2G doesn't handle IME as widget-level. return nsIMEUpdatePreference(); #endif } nsresult PuppetWidget::NotifyIMEOfTextChange(const IMENotification& aIMENotification) { MOZ_ASSERT(aIMENotification.mMessage == NOTIFY_IME_OF_TEXT_CHANGE, "Passed wrong notification"); #ifndef MOZ_CROSS_PROCESS_IME return NS_OK; #endif if (!mTabChild) return NS_ERROR_FAILURE; // While a plugin has focus, text change notification shouldn't be available. if (NS_WARN_IF(mInputContext.mIMEState.mEnabled == IMEState::PLUGIN)) { return NS_ERROR_FAILURE; } // FYI: text change notification is the first notification after // a user operation changes the content. So, we need to modify // the cache as far as possible here. if (NS_WARN_IF(!mContentCache.CacheText(this, &aIMENotification))) { return NS_ERROR_FAILURE; } // TabParent doesn't this this to cache. we don't send the notification // if parent process doesn't request NOTIFY_TEXT_CHANGE. if (mIMEPreferenceOfParent.WantTextChange()) { mTabChild->SendNotifyIMETextChange(mContentCache, aIMENotification); } else { mTabChild->SendUpdateContentCache(mContentCache); } return NS_OK; } nsresult PuppetWidget::NotifyIMEOfSelectionChange( const IMENotification& aIMENotification) { MOZ_ASSERT(aIMENotification.mMessage == NOTIFY_IME_OF_SELECTION_CHANGE, "Passed wrong notification"); #ifndef MOZ_CROSS_PROCESS_IME return NS_OK; #endif if (!mTabChild) return NS_ERROR_FAILURE; // While a plugin has focus, selection change notification shouldn't be // available. if (NS_WARN_IF(mInputContext.mIMEState.mEnabled == IMEState::PLUGIN)) { return NS_ERROR_FAILURE; } // Note that selection change must be notified after text change if it occurs. // Therefore, we don't need to query text content again here. mContentCache.SetSelection( this, aIMENotification.mSelectionChangeData.mOffset, aIMENotification.mSelectionChangeData.Length(), aIMENotification.mSelectionChangeData.mReversed, aIMENotification.mSelectionChangeData.GetWritingMode()); mTabChild->SendNotifyIMESelection(mContentCache, aIMENotification); return NS_OK; } nsresult PuppetWidget::NotifyIMEOfMouseButtonEvent( const IMENotification& aIMENotification) { if (!mTabChild) { return NS_ERROR_FAILURE; } // While a plugin has focus, mouse button event notification shouldn't be // available. if (NS_WARN_IF(mInputContext.mIMEState.mEnabled == IMEState::PLUGIN)) { return NS_ERROR_FAILURE; } bool consumedByIME = false; if (!mTabChild->SendNotifyIMEMouseButtonEvent(aIMENotification, &consumedByIME)) { return NS_ERROR_FAILURE; } return consumedByIME ? NS_SUCCESS_EVENT_CONSUMED : NS_OK; } nsresult PuppetWidget::NotifyIMEOfPositionChange(const IMENotification& aIMENotification) { #ifndef MOZ_CROSS_PROCESS_IME return NS_OK; #endif if (NS_WARN_IF(!mTabChild)) { return NS_ERROR_FAILURE; } if (NS_WARN_IF(!mContentCache.CacheEditorRect(this, &aIMENotification))) { return NS_ERROR_FAILURE; } // While a plugin has focus, selection range isn't available. So, we don't // need to cache it at that time. if (mInputContext.mIMEState.mEnabled != IMEState::PLUGIN && NS_WARN_IF(!mContentCache.CacheSelection(this, &aIMENotification))) { return NS_ERROR_FAILURE; } if (mIMEPreferenceOfParent.WantPositionChanged()) { mTabChild->SendNotifyIMEPositionChange(mContentCache, aIMENotification); } else { mTabChild->SendUpdateContentCache(mContentCache); } return NS_OK; } NS_IMETHODIMP PuppetWidget::SetCursor(nsCursor aCursor) { // Don't cache on windows, Windowless flash breaks this via async cursor updates. #if !defined(XP_WIN) if (mCursor == aCursor && !mCustomCursor && !mUpdateCursor) { return NS_OK; } #endif mCustomCursor = nullptr; if (mTabChild && !mTabChild->SendSetCursor(aCursor, mUpdateCursor)) { return NS_ERROR_FAILURE; } mCursor = aCursor; mUpdateCursor = false; return NS_OK; } NS_IMETHODIMP PuppetWidget::SetCursor(imgIContainer* aCursor, uint32_t aHotspotX, uint32_t aHotspotY) { if (!aCursor || !mTabChild) { return NS_OK; } #if !defined(XP_WIN) if (mCustomCursor == aCursor && mCursorHotspotX == aHotspotX && mCursorHotspotY == aHotspotY && !mUpdateCursor) { return NS_OK; } #endif RefPtr<mozilla::gfx::SourceSurface> surface = aCursor->GetFrame(imgIContainer::FRAME_CURRENT, imgIContainer::FLAG_SYNC_DECODE); if (!surface) { return NS_ERROR_FAILURE; } RefPtr<mozilla::gfx::DataSourceSurface> dataSurface = surface->GetDataSurface(); if (!dataSurface) { return NS_ERROR_FAILURE; } size_t length; int32_t stride; mozilla::UniquePtr<char[]> surfaceData = nsContentUtils::GetSurfaceData(WrapNotNull(dataSurface), &length, &stride); nsDependentCString cursorData(surfaceData.get(), length); mozilla::gfx::IntSize size = dataSurface->GetSize(); if (!mTabChild->SendSetCustomCursor(cursorData, size.width, size.height, stride, static_cast<uint8_t>(dataSurface->GetFormat()), aHotspotX, aHotspotY, mUpdateCursor)) { return NS_ERROR_FAILURE; } mCursor = nsCursor(-1); mCustomCursor = aCursor; mCursorHotspotX = aHotspotX; mCursorHotspotY = aHotspotY; mUpdateCursor = false; return NS_OK; } void PuppetWidget::ClearCachedCursor() { nsBaseWidget::ClearCachedCursor(); mCustomCursor = nullptr; } nsresult PuppetWidget::Paint() { MOZ_ASSERT(!mDirtyRegion.IsEmpty(), "paint event logic messed up"); if (!GetCurrentWidgetListener()) return NS_OK; LayoutDeviceIntRegion region = mDirtyRegion; // reset repaint tracking mDirtyRegion.SetEmpty(); mPaintTask.Revoke(); RefPtr<PuppetWidget> strongThis(this); GetCurrentWidgetListener()->WillPaintWindow(this); if (GetCurrentWidgetListener()) { #ifdef DEBUG debug_DumpPaintEvent(stderr, this, region.ToUnknownRegion(), "PuppetWidget", 0); #endif if (mozilla::layers::LayersBackend::LAYERS_CLIENT == mLayerManager->GetBackendType()) { // Do nothing, the compositor will handle drawing if (mTabChild) { mTabChild->NotifyPainted(); } } else if (mozilla::layers::LayersBackend::LAYERS_BASIC == mLayerManager->GetBackendType()) { RefPtr<gfxContext> ctx = gfxContext::CreateOrNull(mDrawTarget); if (!ctx) { gfxDevCrash(LogReason::InvalidContext) << "PuppetWidget context problem " << gfx::hexa(mDrawTarget); return NS_ERROR_FAILURE; } ctx->Rectangle(gfxRect(0,0,0,0)); ctx->Clip(); AutoLayerManagerSetup setupLayerManager(this, ctx, BufferMode::BUFFER_NONE); GetCurrentWidgetListener()->PaintWindow(this, region); if (mTabChild) { mTabChild->NotifyPainted(); } } } if (GetCurrentWidgetListener()) { GetCurrentWidgetListener()->DidPaintWindow(); } return NS_OK; } void PuppetWidget::SetChild(PuppetWidget* aChild) { MOZ_ASSERT(this != aChild, "can't parent a widget to itself"); MOZ_ASSERT(!aChild->mChild, "fake widget 'hierarchy' only expected to have one level"); mChild = aChild; } NS_IMETHODIMP PuppetWidget::PaintTask::Run() { if (mWidget) { mWidget->Paint(); } return NS_OK; } void PuppetWidget::PaintNowIfNeeded() { if (IsVisible() && mPaintTask.IsPending()) { Paint(); } } NS_IMPL_ISUPPORTS(PuppetWidget::MemoryPressureObserver, nsIObserver) NS_IMETHODIMP PuppetWidget::MemoryPressureObserver::Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData) { if (!mWidget) { return NS_OK; } if (strcmp("memory-pressure", aTopic) == 0 && !NS_LITERAL_STRING("lowering-priority").Equals(aData)) { if (!mWidget->mVisible && mWidget->mLayerManager && XRE_IsContentProcess()) { mWidget->mLayerManager->ClearCachedResources(); } } return NS_OK; } void PuppetWidget::MemoryPressureObserver::Remove() { nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService(); if (obs) { obs->RemoveObserver(this, "memory-pressure"); } mWidget = nullptr; } bool PuppetWidget::NeedsPaint() { // e10s popups are handled by the parent process, so never should be painted here if (XRE_IsContentProcess() && Preferences::GetBool("browser.tabs.remote.desktopbehavior", false) && mWindowType == eWindowType_popup) { NS_WARNING("Trying to paint an e10s popup in the child process!"); return false; } return mVisible; } float PuppetWidget::GetDPI() { if (mDPI < 0) { if (mTabChild) { mTabChild->GetDPI(&mDPI); } else { mDPI = 96.0; } } return mDPI; } double PuppetWidget::GetDefaultScaleInternal() { if (mDefaultScale < 0) { if (mTabChild) { mTabChild->GetDefaultScale(&mDefaultScale); } else { mDefaultScale = 1; } } return mDefaultScale; } int32_t PuppetWidget::RoundsWidgetCoordinatesTo() { if (mRounding < 0) { if (mTabChild) { mTabChild->GetWidgetRounding(&mRounding); } else { mRounding = 1; } } return mRounding; } void* PuppetWidget::GetNativeData(uint32_t aDataType) { switch (aDataType) { case NS_NATIVE_SHAREABLE_WINDOW: { MOZ_ASSERT(mTabChild, "Need TabChild to get the nativeWindow from!"); mozilla::WindowsHandle nativeData = 0; if (mTabChild) { mTabChild->SendGetWidgetNativeData(&nativeData); } return (void*)nativeData; } case NS_NATIVE_WINDOW: case NS_NATIVE_WIDGET: case NS_NATIVE_DISPLAY: // These types are ignored (see bug 1183828, bug 1240891). break; case NS_RAW_NATIVE_IME_CONTEXT: MOZ_CRASH("You need to call GetNativeIMEContext() instead"); case NS_NATIVE_PLUGIN_PORT: case NS_NATIVE_GRAPHIC: case NS_NATIVE_SHELLWIDGET: default: NS_WARNING("nsWindow::GetNativeData called with bad value"); break; } return nullptr; } #if defined(XP_WIN) void PuppetWidget::SetNativeData(uint32_t aDataType, uintptr_t aVal) { switch (aDataType) { case NS_NATIVE_CHILD_OF_SHAREABLE_WINDOW: MOZ_ASSERT(mTabChild, "Need TabChild to send the message."); if (mTabChild) { mTabChild->SendSetNativeChildOfShareableWindow(aVal); } break; default: NS_WARNING("SetNativeData called with unsupported data type."); } } #endif nsIntPoint PuppetWidget::GetChromeDimensions() { if (!GetOwningTabChild()) { NS_WARNING("PuppetWidget without Tab does not have chrome information."); return nsIntPoint(); } return GetOwningTabChild()->GetChromeDisplacement().ToUnknownPoint(); } nsIntPoint PuppetWidget::GetWindowPosition() { if (!GetOwningTabChild()) { return nsIntPoint(); } int32_t winX, winY, winW, winH; NS_ENSURE_SUCCESS(GetOwningTabChild()->GetDimensions(0, &winX, &winY, &winW, &winH), nsIntPoint()); return nsIntPoint(winX, winY) + GetOwningTabChild()->GetClientOffset().ToUnknownPoint(); } LayoutDeviceIntRect PuppetWidget::GetScreenBounds() { return LayoutDeviceIntRect(WidgetToScreenOffset(), mBounds.Size()); } uint32_t PuppetWidget::GetMaxTouchPoints() const { static uint32_t sTouchPoints = 0; static bool sIsInitialized = false; if (sIsInitialized) { return sTouchPoints; } if (mTabChild) { mTabChild->GetMaxTouchPoints(&sTouchPoints); sIsInitialized = true; } return sTouchPoints; } void PuppetWidget::StartAsyncScrollbarDrag(const AsyncDragMetrics& aDragMetrics) { mTabChild->StartScrollbarDrag(aDragMetrics); } PuppetScreen::PuppetScreen(void *nativeScreen) { } PuppetScreen::~PuppetScreen() { } static ScreenConfiguration ScreenConfig() { ScreenConfiguration config; hal::GetCurrentScreenConfiguration(&config); return config; } nsIntSize PuppetWidget::GetScreenDimensions() { nsIntRect r = ScreenConfig().rect(); return nsIntSize(r.width, r.height); } NS_IMETHODIMP PuppetScreen::GetId(uint32_t *outId) { *outId = 1; return NS_OK; } NS_IMETHODIMP PuppetScreen::GetRect(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight) { nsIntRect r = ScreenConfig().rect(); *outLeft = r.x; *outTop = r.y; *outWidth = r.width; *outHeight = r.height; return NS_OK; } NS_IMETHODIMP PuppetScreen::GetAvailRect(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight) { return GetRect(outLeft, outTop, outWidth, outHeight); } NS_IMETHODIMP PuppetScreen::GetPixelDepth(int32_t *aPixelDepth) { *aPixelDepth = ScreenConfig().pixelDepth(); return NS_OK; } NS_IMETHODIMP PuppetScreen::GetColorDepth(int32_t *aColorDepth) { *aColorDepth = ScreenConfig().colorDepth(); return NS_OK; } NS_IMETHODIMP PuppetScreen::GetRotation(uint32_t* aRotation) { NS_WARNING("Attempt to get screen rotation through nsIScreen::GetRotation(). Nothing should know or care this in sandboxed contexts. If you want *orientation*, use hal."); return NS_ERROR_NOT_AVAILABLE; } NS_IMETHODIMP PuppetScreen::SetRotation(uint32_t aRotation) { NS_WARNING("Attempt to set screen rotation through nsIScreen::GetRotation(). Nothing should know or care this in sandboxed contexts. If you want *orientation*, use hal."); return NS_ERROR_NOT_AVAILABLE; } NS_IMPL_ISUPPORTS(PuppetScreenManager, nsIScreenManager) PuppetScreenManager::PuppetScreenManager() { mOneScreen = new PuppetScreen(nullptr); } PuppetScreenManager::~PuppetScreenManager() { } NS_IMETHODIMP PuppetScreenManager::ScreenForId(uint32_t aId, nsIScreen** outScreen) { NS_IF_ADDREF(*outScreen = mOneScreen.get()); return NS_OK; } NS_IMETHODIMP PuppetScreenManager::GetPrimaryScreen(nsIScreen** outScreen) { NS_IF_ADDREF(*outScreen = mOneScreen.get()); return NS_OK; } NS_IMETHODIMP PuppetScreenManager::ScreenForRect(int32_t inLeft, int32_t inTop, int32_t inWidth, int32_t inHeight, nsIScreen** outScreen) { return GetPrimaryScreen(outScreen); } NS_IMETHODIMP PuppetScreenManager::ScreenForNativeWidget(void* aWidget, nsIScreen** outScreen) { return GetPrimaryScreen(outScreen); } NS_IMETHODIMP PuppetScreenManager::GetNumberOfScreens(uint32_t* aNumberOfScreens) { *aNumberOfScreens = 1; return NS_OK; } NS_IMETHODIMP PuppetScreenManager::GetSystemDefaultScale(float *aDefaultScale) { *aDefaultScale = 1.0f; return NS_OK; } nsIWidgetListener* PuppetWidget::GetCurrentWidgetListener() { if (!mPreviouslyAttachedWidgetListener || !mAttachedWidgetListener) { return mAttachedWidgetListener; } if (mAttachedWidgetListener->GetView()->IsPrimaryFramePaintSuppressed()) { return mPreviouslyAttachedWidgetListener; } return mAttachedWidgetListener; } void PuppetWidget::SetCandidateWindowForPlugin( const CandidateWindowPosition& aPosition) { if (!mTabChild) { return; } mTabChild->SendSetCandidateWindowForPlugin(aPosition); } void PuppetWidget::ZoomToRect(const uint32_t& aPresShellId, const FrameMetrics::ViewID& aViewId, const CSSRect& aRect, const uint32_t& aFlags) { if (!mTabChild) { return; } mTabChild->ZoomToRect(aPresShellId, aViewId, aRect, aFlags); } void PuppetWidget::LookUpDictionary( const nsAString& aText, const nsTArray<mozilla::FontRange>& aFontRangeArray, const bool aIsVertical, const LayoutDeviceIntPoint& aPoint) { if (!mTabChild) { return; } mTabChild->SendLookUpDictionary(nsString(aText), aFontRangeArray, aIsVertical, aPoint); } bool PuppetWidget::HasPendingInputEvent() { if (!mTabChild) { return false; } bool ret = false; mTabChild->GetIPCChannel()->PeekMessages( [&ret](const IPC::Message& aMsg) -> bool { if ((aMsg.type() & mozilla::dom::PBrowser::PBrowserStart) == mozilla::dom::PBrowser::PBrowserStart) { switch (aMsg.type()) { case mozilla::dom::PBrowser::Msg_RealMouseMoveEvent__ID: case mozilla::dom::PBrowser::Msg_SynthMouseMoveEvent__ID: case mozilla::dom::PBrowser::Msg_RealMouseButtonEvent__ID: case mozilla::dom::PBrowser::Msg_RealKeyEvent__ID: case mozilla::dom::PBrowser::Msg_MouseWheelEvent__ID: case mozilla::dom::PBrowser::Msg_RealTouchEvent__ID: case mozilla::dom::PBrowser::Msg_RealTouchMoveEvent__ID: case mozilla::dom::PBrowser::Msg_RealDragEvent__ID: case mozilla::dom::PBrowser::Msg_UpdateDimensions__ID: case mozilla::dom::PBrowser::Msg_MouseEvent__ID: case mozilla::dom::PBrowser::Msg_KeyEvent__ID: ret = true; return false; // Stop peeking. } } return true; } ); return ret; } void PuppetWidget::HandledWindowedPluginKeyEvent( const NativeEventData& aKeyEventData, bool aIsConsumed) { if (NS_WARN_IF(mKeyEventInPluginCallbacks.IsEmpty())) { return; } nsCOMPtr<nsIKeyEventInPluginCallback> callback = mKeyEventInPluginCallbacks[0]; MOZ_ASSERT(callback); mKeyEventInPluginCallbacks.RemoveElementAt(0); callback->HandledWindowedPluginKeyEvent(aKeyEventData, aIsConsumed); } nsresult PuppetWidget::OnWindowedPluginKeyEvent(const NativeEventData& aKeyEventData, nsIKeyEventInPluginCallback* aCallback) { if (NS_WARN_IF(!mTabChild)) { return NS_ERROR_NOT_AVAILABLE; } if (NS_WARN_IF(!mTabChild->SendOnWindowedPluginKeyEvent(aKeyEventData))) { return NS_ERROR_FAILURE; } mKeyEventInPluginCallbacks.AppendElement(aCallback); return NS_SUCCESS_EVENT_HANDLED_ASYNCHRONOUSLY; } } // namespace widget } // namespace mozilla