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-rw-r--r--dom/ipc/BrowserParent.cpp4120
1 files changed, 4120 insertions, 0 deletions
diff --git a/dom/ipc/BrowserParent.cpp b/dom/ipc/BrowserParent.cpp
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--- /dev/null
+++ b/dom/ipc/BrowserParent.cpp
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+/* -*- 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 "base/basictypes.h"
+
+#include "BrowserParent.h"
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/EventForwards.h"
+
+#ifdef ACCESSIBILITY
+# include "mozilla/a11y/DocAccessibleParent.h"
+# include "mozilla/a11y/Platform.h"
+# include "mozilla/a11y/RemoteAccessibleBase.h"
+# include "nsAccessibilityService.h"
+#endif
+#include "mozilla/Components.h"
+#include "mozilla/dom/BrowserHost.h"
+#include "mozilla/dom/BrowserSessionStore.h"
+#include "mozilla/dom/BrowsingContextGroup.h"
+#include "mozilla/dom/CancelContentJSOptionsBinding.h"
+#include "mozilla/dom/ChromeMessageSender.h"
+#include "mozilla/dom/ContentParent.h"
+#include "mozilla/dom/ContentProcessManager.h"
+#include "mozilla/dom/DataTransfer.h"
+#include "mozilla/dom/DataTransferItemList.h"
+#include "mozilla/dom/DocumentInlines.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/indexedDB/ActorsParent.h"
+#include "mozilla/dom/PaymentRequestParent.h"
+#include "mozilla/dom/PointerEventHandler.h"
+#include "mozilla/dom/BrowserBridgeParent.h"
+#include "mozilla/dom/RemoteDragStartData.h"
+#include "mozilla/dom/RemoteWebProgressRequest.h"
+#include "mozilla/dom/SessionHistoryEntry.h"
+#include "mozilla/dom/SessionStoreParent.h"
+#include "mozilla/dom/UserActivation.h"
+#include "mozilla/EventStateManager.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/DataSurfaceHelpers.h"
+#include "mozilla/gfx/GPUProcessManager.h"
+#include "mozilla/IMEStateManager.h"
+#include "mozilla/ipc/Endpoint.h"
+#include "mozilla/layers/AsyncDragMetrics.h"
+#include "mozilla/layers/InputAPZContext.h"
+#include "mozilla/layout/RemoteLayerTreeOwner.h"
+#include "mozilla/LookAndFeel.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/MiscEvents.h"
+#include "mozilla/MouseEvents.h"
+#include "mozilla/NativeKeyBindingsType.h"
+#include "mozilla/net/NeckoChild.h"
+#include "mozilla/net/CookieJarSettings.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/PresShell.h"
+#include "mozilla/ProcessHangMonitor.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/StaticPrefs_dom.h"
+#include "mozilla/TextEventDispatcher.h"
+#include "mozilla/TextEvents.h"
+#include "mozilla/TouchEvents.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Unused.h"
+#include "nsCOMPtr.h"
+#include "nsContentUtils.h"
+#include "nsDebug.h"
+#include "nsFocusManager.h"
+#include "nsFrameLoader.h"
+#include "nsFrameLoaderOwner.h"
+#include "nsFrameManager.h"
+#include "nsIBaseWindow.h"
+#include "nsIBrowser.h"
+#include "nsIBrowserController.h"
+#include "nsIContent.h"
+#include "nsICookieJarSettings.h"
+#include "nsIDocShell.h"
+#include "nsIDocShellTreeOwner.h"
+#include "nsImportModule.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsILoadInfo.h"
+#include "nsIPromptFactory.h"
+#include "nsIURI.h"
+#include "nsIWebBrowserChrome.h"
+#include "nsIWebProtocolHandlerRegistrar.h"
+#include "nsIWindowWatcher.h"
+#include "nsIXPConnect.h"
+#include "nsIXULBrowserWindow.h"
+#include "nsIAppWindow.h"
+#include "nsLayoutUtils.h"
+#include "nsQueryActor.h"
+#include "nsSHistory.h"
+#include "nsViewManager.h"
+#include "nsVariant.h"
+#include "nsIWidget.h"
+#include "nsNetUtil.h"
+#ifndef XP_WIN
+# include "nsJARProtocolHandler.h"
+#endif
+#include "nsPIDOMWindow.h"
+#include "nsPrintfCString.h"
+#include "nsQueryObject.h"
+#include "nsServiceManagerUtils.h"
+#include "nsThreadUtils.h"
+#include "PermissionMessageUtils.h"
+#include "StructuredCloneData.h"
+#include "ColorPickerParent.h"
+#include "FilePickerParent.h"
+#include "BrowserChild.h"
+#include "nsNetCID.h"
+#include "nsIAuthInformation.h"
+#include "nsIAuthPromptCallback.h"
+#include "nsAuthInformationHolder.h"
+#include "nsICancelable.h"
+#include "gfxUtils.h"
+#include "nsILoginManagerAuthPrompter.h"
+#include "nsPIWindowRoot.h"
+#include "nsReadableUtils.h"
+#include "nsIAuthPrompt2.h"
+#include "gfxDrawable.h"
+#include "ImageOps.h"
+#include "UnitTransforms.h"
+#include <algorithm>
+#include "mozilla/NullPrincipal.h"
+#include "mozilla/WebBrowserPersistDocumentParent.h"
+#include "ProcessPriorityManager.h"
+#include "nsString.h"
+#include "IHistory.h"
+#include "mozilla/dom/WindowGlobalParent.h"
+#include "mozilla/dom/CanonicalBrowsingContext.h"
+#include "mozilla/ProfilerLabels.h"
+#include "MMPrinter.h"
+#include "mozilla/dom/CrashReport.h"
+#include "nsISecureBrowserUI.h"
+#include "nsIXULRuntime.h"
+#include "VsyncSource.h"
+#include "nsSubDocumentFrame.h"
+
+#ifdef XP_WIN
+# include "FxRWindowManager.h"
+#endif
+
+#if defined(XP_WIN) && defined(ACCESSIBILITY)
+# include "mozilla/a11y/AccessibleWrap.h"
+# include "mozilla/a11y/Compatibility.h"
+# include "mozilla/a11y/nsWinUtils.h"
+#endif
+
+#ifdef MOZ_ANDROID_HISTORY
+# include "GeckoViewHistory.h"
+#endif
+
+#if defined(MOZ_WIDGET_ANDROID)
+# include "mozilla/widget/nsWindow.h"
+#endif // defined(MOZ_WIDGET_ANDROID)
+
+using namespace mozilla::dom;
+using namespace mozilla::ipc;
+using namespace mozilla::layers;
+using namespace mozilla::layout;
+using namespace mozilla::services;
+using namespace mozilla::widget;
+using namespace mozilla::gfx;
+
+using mozilla::LazyLogModule;
+
+extern mozilla::LazyLogModule gSHIPBFCacheLog;
+
+LazyLogModule gBrowserFocusLog("BrowserFocus");
+
+#define LOGBROWSERFOCUS(args) \
+ MOZ_LOG(gBrowserFocusLog, mozilla::LogLevel::Debug, args)
+
+/* static */
+BrowserParent* BrowserParent::sFocus = nullptr;
+/* static */
+BrowserParent* BrowserParent::sTopLevelWebFocus = nullptr;
+/* static */
+BrowserParent* BrowserParent::sLastMouseRemoteTarget = nullptr;
+
+// The flags passed by the webProgress notifications are 16 bits shifted
+// from the ones registered by webProgressListeners.
+#define NOTIFY_FLAG_SHIFT 16
+
+namespace mozilla {
+
+/**
+ * Store data of a keypress event which is requesting to handled it in a remote
+ * process or some remote processes.
+ */
+class RequestingAccessKeyEventData {
+ public:
+ RequestingAccessKeyEventData() = delete;
+
+ static void OnBrowserParentCreated() {
+ MOZ_ASSERT(sBrowserParentCount <= INT32_MAX);
+ sBrowserParentCount++;
+ }
+ static void OnBrowserParentDestroyed() {
+ MOZ_ASSERT(sBrowserParentCount > 0);
+ sBrowserParentCount--;
+ // To avoid memory leak, we need to reset sData when the last BrowserParent
+ // is destroyed.
+ if (!sBrowserParentCount) {
+ Clear();
+ }
+ }
+
+ static void Set(const WidgetKeyboardEvent& aKeyPressEvent) {
+ MOZ_ASSERT(aKeyPressEvent.mMessage == eKeyPress);
+ MOZ_ASSERT(sBrowserParentCount > 0);
+ sData =
+ Some(Data{aKeyPressEvent.mAlternativeCharCodes, aKeyPressEvent.mKeyCode,
+ aKeyPressEvent.mCharCode, aKeyPressEvent.mKeyNameIndex,
+ aKeyPressEvent.mCodeNameIndex, aKeyPressEvent.mKeyValue,
+ aKeyPressEvent.mModifiers});
+ }
+
+ static void Clear() { sData.reset(); }
+
+ [[nodiscard]] static bool Equals(const WidgetKeyboardEvent& aKeyPressEvent) {
+ MOZ_ASSERT(sBrowserParentCount > 0);
+ return sData.isSome() && sData->Equals(aKeyPressEvent);
+ }
+
+ [[nodiscard]] static bool IsSet() {
+ MOZ_ASSERT(sBrowserParentCount > 0);
+ return sData.isSome();
+ }
+
+ private:
+ struct Data {
+ [[nodiscard]] bool Equals(const WidgetKeyboardEvent& aKeyPressEvent) {
+ return mKeyCode == aKeyPressEvent.mKeyCode &&
+ mCharCode == aKeyPressEvent.mCharCode &&
+ mKeyNameIndex == aKeyPressEvent.mKeyNameIndex &&
+ mCodeNameIndex == aKeyPressEvent.mCodeNameIndex &&
+ mKeyValue == aKeyPressEvent.mKeyValue &&
+ mModifiers == aKeyPressEvent.mModifiers &&
+ mAlternativeCharCodes == aKeyPressEvent.mAlternativeCharCodes;
+ }
+
+ CopyableTArray<AlternativeCharCode> mAlternativeCharCodes;
+ uint32_t mKeyCode;
+ uint32_t mCharCode;
+ KeyNameIndex mKeyNameIndex;
+ CodeNameIndex mCodeNameIndex;
+ nsString mKeyValue;
+ Modifiers mModifiers;
+ };
+ static Maybe<Data> sData;
+ static int32_t sBrowserParentCount;
+};
+int32_t RequestingAccessKeyEventData::sBrowserParentCount = 0;
+Maybe<RequestingAccessKeyEventData::Data> RequestingAccessKeyEventData::sData;
+
+namespace dom {
+
+BrowserParent::LayerToBrowserParentTable*
+ BrowserParent::sLayerToBrowserParentTable = nullptr;
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(BrowserParent)
+ NS_INTERFACE_MAP_ENTRY(nsIAuthPromptProvider)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMEventListener)
+NS_INTERFACE_MAP_END
+NS_IMPL_CYCLE_COLLECTION_WEAK(BrowserParent, mFrameLoader, mBrowsingContext)
+NS_IMPL_CYCLE_COLLECTING_ADDREF(BrowserParent)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(BrowserParent)
+
+BrowserParent::BrowserParent(ContentParent* aManager, const TabId& aTabId,
+ const TabContext& aContext,
+ CanonicalBrowsingContext* aBrowsingContext,
+ uint32_t aChromeFlags)
+ : TabContext(aContext),
+ mTabId(aTabId),
+ mManager(aManager),
+ mBrowsingContext(aBrowsingContext),
+ mFrameElement(nullptr),
+ mBrowserDOMWindow(nullptr),
+ mFrameLoader(nullptr),
+ mChromeFlags(aChromeFlags),
+ mBrowserBridgeParent(nullptr),
+ mBrowserHost(nullptr),
+ mContentCache(*this),
+ mRemoteLayerTreeOwner{},
+ mLayerTreeEpoch{1},
+ mChildToParentConversionMatrix{},
+ mRect(0, 0, 0, 0),
+ mDimensions(0, 0),
+ mDPI(0),
+ mRounding(0),
+ mDefaultScale(0),
+ mUpdatedDimensions(false),
+ mSizeMode(nsSizeMode_Normal),
+ mClientOffset{},
+ mChromeOffset{},
+ mCreatingWindow(false),
+ mDelayedFrameScripts{},
+ mVsyncParent(nullptr),
+ mMarkedDestroying(false),
+ mIsDestroyed(false),
+ mRemoteTargetSetsCursor(false),
+ mIsPreservingLayers(false),
+ mRenderLayers(true),
+ mPriorityHint(false),
+ mHasLayers(false),
+ mHasPresented(false),
+ mIsReadyToHandleInputEvents(false),
+ mIsMouseEnterIntoWidgetEventSuppressed(false),
+ mLockedNativePointer(false),
+ mShowingTooltip(false) {
+ MOZ_ASSERT(aManager);
+
+ RequestingAccessKeyEventData::OnBrowserParentCreated();
+
+ // When the input event queue is disabled, we don't need to handle the case
+ // that some input events are dispatched before PBrowserConstructor.
+ mIsReadyToHandleInputEvents = !ContentParent::IsInputEventQueueSupported();
+
+ // Make sure to compute our process priority if needed before the block of
+ // code below. This makes sure the block below prioritizes our process if
+ // needed.
+ if (aBrowsingContext->IsTop()) {
+ RecomputeProcessPriority();
+ }
+
+ // If we're in a BC tree that is active with respect to the priority manager,
+ // ensure that this new BrowserParent is marked as active. This ensures that
+ // the process will be prioritized in a cross-site iframe navigation in an
+ // active tab, and also that the process is correctly prioritized if we got
+ // created for a browsing context which was already active.
+ if (aBrowsingContext->Top()->IsPriorityActive()) {
+ ProcessPriorityManager::BrowserPriorityChanged(this, true);
+ }
+}
+
+BrowserParent::~BrowserParent() {
+ RequestingAccessKeyEventData::OnBrowserParentDestroyed();
+}
+
+/* static */
+BrowserParent* BrowserParent::GetFocused() { return sFocus; }
+
+/* static */
+BrowserParent* BrowserParent::GetLastMouseRemoteTarget() {
+ return sLastMouseRemoteTarget;
+}
+
+/*static*/
+BrowserParent* BrowserParent::GetFrom(nsFrameLoader* aFrameLoader) {
+ if (!aFrameLoader) {
+ return nullptr;
+ }
+ return aFrameLoader->GetBrowserParent();
+}
+
+/*static*/
+BrowserParent* BrowserParent::GetFrom(PBrowserParent* aBrowserParent) {
+ return static_cast<BrowserParent*>(aBrowserParent);
+}
+
+/*static*/
+BrowserParent* BrowserParent::GetFrom(nsIContent* aContent) {
+ RefPtr<nsFrameLoaderOwner> loaderOwner = do_QueryObject(aContent);
+ if (!loaderOwner) {
+ return nullptr;
+ }
+ RefPtr<nsFrameLoader> frameLoader = loaderOwner->GetFrameLoader();
+ return GetFrom(frameLoader);
+}
+
+/* static */
+BrowserParent* BrowserParent::GetBrowserParentFromLayersId(
+ layers::LayersId aLayersId) {
+ if (!sLayerToBrowserParentTable) {
+ return nullptr;
+ }
+ return sLayerToBrowserParentTable->Get(uint64_t(aLayersId));
+}
+
+/*static*/
+TabId BrowserParent::GetTabIdFrom(nsIDocShell* docShell) {
+ nsCOMPtr<nsIBrowserChild> browserChild(BrowserChild::GetFrom(docShell));
+ if (browserChild) {
+ return static_cast<BrowserChild*>(browserChild.get())->GetTabId();
+ }
+ return TabId(0);
+}
+
+void BrowserParent::AddBrowserParentToTable(layers::LayersId aLayersId,
+ BrowserParent* aBrowserParent) {
+ if (!sLayerToBrowserParentTable) {
+ sLayerToBrowserParentTable = new LayerToBrowserParentTable();
+ }
+ sLayerToBrowserParentTable->InsertOrUpdate(uint64_t(aLayersId),
+ aBrowserParent);
+}
+
+void BrowserParent::RemoveBrowserParentFromTable(layers::LayersId aLayersId) {
+ if (!sLayerToBrowserParentTable) {
+ return;
+ }
+ sLayerToBrowserParentTable->Remove(uint64_t(aLayersId));
+ if (sLayerToBrowserParentTable->Count() == 0) {
+ delete sLayerToBrowserParentTable;
+ sLayerToBrowserParentTable = nullptr;
+ }
+}
+
+already_AddRefed<nsILoadContext> BrowserParent::GetLoadContext() {
+ return do_AddRef(mBrowsingContext);
+}
+
+/**
+ * Will return nullptr if there is no outer window available for the
+ * document hosting the owner element of this BrowserParent. Also will return
+ * nullptr if that outer window is in the process of closing.
+ */
+already_AddRefed<nsPIDOMWindowOuter> BrowserParent::GetParentWindowOuter() {
+ nsCOMPtr<nsIContent> frame = GetOwnerElement();
+ if (!frame) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> parent = frame->OwnerDoc()->GetWindow();
+ if (!parent || parent->Closed()) {
+ return nullptr;
+ }
+
+ return parent.forget();
+}
+
+already_AddRefed<nsIWidget> BrowserParent::GetTopLevelWidget() {
+ if (RefPtr<Element> element = mFrameElement) {
+ if (PresShell* presShell = element->OwnerDoc()->GetPresShell()) {
+ return do_AddRef(presShell->GetViewManager()->GetRootWidget());
+ }
+ }
+ return nullptr;
+}
+
+already_AddRefed<nsIWidget> BrowserParent::GetTextInputHandlingWidget() const {
+ if (!mFrameElement) {
+ return nullptr;
+ }
+ PresShell* presShell = mFrameElement->OwnerDoc()->GetPresShell();
+ if (!presShell) {
+ return nullptr;
+ }
+ nsPresContext* presContext = presShell->GetPresContext();
+ if (!presContext) {
+ return nullptr;
+ }
+ nsCOMPtr<nsIWidget> widget = presContext->GetTextInputHandlingWidget();
+ return widget.forget();
+}
+
+already_AddRefed<nsIWidget> BrowserParent::GetWidget() const {
+ if (!mFrameElement) {
+ return nullptr;
+ }
+ nsCOMPtr<nsIWidget> widget = nsContentUtils::WidgetForContent(mFrameElement);
+ if (!widget) {
+ widget = nsContentUtils::WidgetForDocument(mFrameElement->OwnerDoc());
+ }
+ return widget.forget();
+}
+
+already_AddRefed<nsIWidget> BrowserParent::GetDocWidget() const {
+ if (!mFrameElement) {
+ return nullptr;
+ }
+ return do_AddRef(
+ nsContentUtils::WidgetForDocument(mFrameElement->OwnerDoc()));
+}
+
+nsIXULBrowserWindow* BrowserParent::GetXULBrowserWindow() {
+ if (!mFrameElement) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIDocShell> docShell = mFrameElement->OwnerDoc()->GetDocShell();
+ if (!docShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
+ docShell->GetTreeOwner(getter_AddRefs(treeOwner));
+ if (!treeOwner) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIAppWindow> window = do_GetInterface(treeOwner);
+ if (!window) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIXULBrowserWindow> xulBrowserWindow;
+ window->GetXULBrowserWindow(getter_AddRefs(xulBrowserWindow));
+ return xulBrowserWindow;
+}
+
+uint32_t BrowserParent::GetMaxTouchPoints(Element* aElement) {
+ if (!aElement) {
+ return 0;
+ }
+
+ if (StaticPrefs::dom_maxtouchpoints_testing_value() >= 0) {
+ return StaticPrefs::dom_maxtouchpoints_testing_value();
+ }
+
+ nsIWidget* widget = nsContentUtils::WidgetForDocument(aElement->OwnerDoc());
+ return widget ? widget->GetMaxTouchPoints() : 0;
+}
+
+a11y::DocAccessibleParent* BrowserParent::GetTopLevelDocAccessible() const {
+#ifdef ACCESSIBILITY
+ // XXX Consider managing non top level PDocAccessibles with their parent
+ // document accessible.
+ const ManagedContainer<PDocAccessibleParent>& docs =
+ ManagedPDocAccessibleParent();
+ for (auto* key : docs) {
+ auto* doc = static_cast<a11y::DocAccessibleParent*>(key);
+ // We want the document for this BrowserParent even if it's for an
+ // embedded out-of-process iframe. Therefore, we use
+ // IsTopLevelInContentProcess. In contrast, using IsToplevel would only
+ // include documents that aren't embedded; e.g. tab documents.
+ if (doc->IsTopLevelInContentProcess() && !doc->IsShutdown()) {
+ return doc;
+ }
+ }
+#endif
+ return nullptr;
+}
+
+LayersId BrowserParent::GetLayersId() const {
+ if (!mRemoteLayerTreeOwner.IsInitialized()) {
+ return LayersId{};
+ }
+ return mRemoteLayerTreeOwner.GetLayersId();
+}
+
+BrowserBridgeParent* BrowserParent::GetBrowserBridgeParent() const {
+ return mBrowserBridgeParent;
+}
+
+BrowserHost* BrowserParent::GetBrowserHost() const { return mBrowserHost; }
+
+ParentShowInfo BrowserParent::GetShowInfo() {
+ TryCacheDPIAndScale();
+ if (mFrameElement) {
+ nsAutoString name;
+ mFrameElement->GetAttr(nsGkAtoms::name, name);
+ bool isTransparent =
+ nsContentUtils::IsChromeDoc(mFrameElement->OwnerDoc()) &&
+ mFrameElement->HasAttr(nsGkAtoms::transparent);
+ return ParentShowInfo(name, false, isTransparent, mDPI, mRounding,
+ mDefaultScale.scale);
+ }
+
+ return ParentShowInfo(u""_ns, false, false, mDPI, mRounding,
+ mDefaultScale.scale);
+}
+
+already_AddRefed<nsIPrincipal> BrowserParent::GetContentPrincipal() const {
+ nsCOMPtr<nsIBrowser> browser =
+ mFrameElement ? mFrameElement->AsBrowser() : nullptr;
+ NS_ENSURE_TRUE(browser, nullptr);
+
+ RefPtr<nsIPrincipal> principal;
+
+ nsresult rv;
+ rv = browser->GetContentPrincipal(getter_AddRefs(principal));
+ NS_ENSURE_SUCCESS(rv, nullptr);
+
+ return principal.forget();
+}
+
+void BrowserParent::SetOwnerElement(Element* aElement) {
+ // If we held previous content then unregister for its events.
+ RemoveWindowListeners();
+
+ // If we change top-level documents then we need to change our
+ // registration with them.
+ RefPtr<nsPIWindowRoot> curTopLevelWin, newTopLevelWin;
+ if (mFrameElement) {
+ curTopLevelWin = nsContentUtils::GetWindowRoot(mFrameElement->OwnerDoc());
+ }
+ if (aElement) {
+ newTopLevelWin = nsContentUtils::GetWindowRoot(aElement->OwnerDoc());
+ }
+ bool isSameTopLevelWin = curTopLevelWin == newTopLevelWin;
+ if (mBrowserHost && curTopLevelWin && !isSameTopLevelWin) {
+ curTopLevelWin->RemoveBrowser(mBrowserHost);
+ }
+
+ // Update to the new content, and register to listen for events from it.
+ mFrameElement = aElement;
+
+ if (mBrowserHost && newTopLevelWin && !isSameTopLevelWin) {
+ newTopLevelWin->AddBrowser(mBrowserHost);
+ }
+
+#if defined(XP_WIN) && defined(ACCESSIBILITY)
+ if (!mIsDestroyed) {
+ uintptr_t newWindowHandle = 0;
+ if (nsCOMPtr<nsIWidget> widget = GetWidget()) {
+ newWindowHandle =
+ reinterpret_cast<uintptr_t>(widget->GetNativeData(NS_NATIVE_WINDOW));
+ }
+ Unused << SendUpdateNativeWindowHandle(newWindowHandle);
+ a11y::DocAccessibleParent* doc = GetTopLevelDocAccessible();
+ if (doc) {
+ HWND hWnd = reinterpret_cast<HWND>(doc->GetEmulatedWindowHandle());
+ if (hWnd) {
+ HWND parentHwnd = reinterpret_cast<HWND>(newWindowHandle);
+ if (parentHwnd != ::GetParent(hWnd)) {
+ ::SetParent(hWnd, parentHwnd);
+ }
+ }
+ }
+ }
+#endif
+
+ AddWindowListeners();
+
+ // The DPI depends on our frame element's widget, so invalidate now in case
+ // we've tried to cache it already.
+ mDPI = -1;
+ TryCacheDPIAndScale();
+
+ if (mRemoteLayerTreeOwner.IsInitialized()) {
+ mRemoteLayerTreeOwner.OwnerContentChanged();
+ }
+
+ // Set our BrowsingContext's embedder if we're not embedded within a
+ // BrowserBridgeParent.
+ if (!GetBrowserBridgeParent() && mBrowsingContext && mFrameElement) {
+ mBrowsingContext->SetEmbedderElement(mFrameElement);
+ }
+
+ UpdateVsyncParentVsyncDispatcher();
+
+ VisitChildren([aElement](BrowserBridgeParent* aBrowser) {
+ if (auto* browserParent = aBrowser->GetBrowserParent()) {
+ browserParent->SetOwnerElement(aElement);
+ }
+ });
+}
+
+void BrowserParent::CacheFrameLoader(nsFrameLoader* aFrameLoader) {
+ mFrameLoader = aFrameLoader;
+}
+
+void BrowserParent::AddWindowListeners() {
+ if (mFrameElement) {
+ if (nsCOMPtr<nsPIDOMWindowOuter> window =
+ mFrameElement->OwnerDoc()->GetWindow()) {
+ nsCOMPtr<EventTarget> eventTarget = window->GetTopWindowRoot();
+ if (eventTarget) {
+ eventTarget->AddEventListener(u"MozUpdateWindowPos"_ns, this, false,
+ false);
+ eventTarget->AddEventListener(u"fullscreenchange"_ns, this, false,
+ false);
+ }
+ }
+ }
+}
+
+void BrowserParent::RemoveWindowListeners() {
+ if (mFrameElement && mFrameElement->OwnerDoc()->GetWindow()) {
+ nsCOMPtr<nsPIDOMWindowOuter> window =
+ mFrameElement->OwnerDoc()->GetWindow();
+ nsCOMPtr<EventTarget> eventTarget = window->GetTopWindowRoot();
+ if (eventTarget) {
+ eventTarget->RemoveEventListener(u"MozUpdateWindowPos"_ns, this, false);
+ eventTarget->RemoveEventListener(u"fullscreenchange"_ns, this, false);
+ }
+ }
+}
+
+void BrowserParent::Deactivated() {
+ if (mShowingTooltip) {
+ // Reuse the normal tooltip hiding method.
+ mozilla::Unused << RecvHideTooltip();
+ }
+ UnlockNativePointer();
+ UnsetTopLevelWebFocus(this);
+ UnsetLastMouseRemoteTarget(this);
+ PointerLockManager::ReleaseLockedRemoteTarget(this);
+ PointerEventHandler::ReleasePointerCaptureRemoteTarget(this);
+ PresShell::ReleaseCapturingRemoteTarget(this);
+ ProcessPriorityManager::BrowserPriorityChanged(this, /* aPriority = */ false);
+}
+
+void BrowserParent::DestroyInternal() {
+ Deactivated();
+
+ RemoveWindowListeners();
+
+#ifdef ACCESSIBILITY
+ if (a11y::DocAccessibleParent* tabDoc = GetTopLevelDocAccessible()) {
+# if defined(ANDROID)
+ MonitorAutoLock mal(nsAccessibilityService::GetAndroidMonitor());
+# endif
+ tabDoc->Destroy();
+ }
+#endif
+
+ // If this fails, it's most likely due to a content-process crash,
+ // and auto-cleanup will kick in. Otherwise, the child side will
+ // destroy itself and send back __delete__().
+ Unused << SendDestroy();
+}
+
+void BrowserParent::Destroy() {
+ // Aggressively release the window to avoid leaking the world in shutdown
+ // corner cases.
+ mBrowserDOMWindow = nullptr;
+
+ if (mIsDestroyed) {
+ return;
+ }
+
+ // If we are shutting down everything or we know to be the last
+ // BrowserParent, signal the impending shutdown early to the content process
+ // to avoid to run the SendDestroy before we know we are ExpectingShutdown.
+ Manager()->NotifyTabWillDestroy();
+
+ DestroyInternal();
+
+ mIsDestroyed = true;
+
+ Manager()->NotifyTabDestroying();
+
+ // This `AddKeepAlive` will be cleared if `mMarkedDestroying` is set in
+ // `ActorDestroy`. Out of caution, we don't add the `KeepAlive` if our IPC
+ // actor has somehow already been destroyed, as that would mean `ActorDestroy`
+ // won't be called.
+ if (CanRecv()) {
+ mBrowsingContext->Group()->AddKeepAlive();
+ }
+
+ mMarkedDestroying = true;
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvDidUnsuppressPainting() {
+ if (!mFrameElement) {
+ return IPC_OK();
+ }
+ nsSubDocumentFrame* subdocFrame =
+ do_QueryFrame(mFrameElement->GetPrimaryFrame());
+ if (subdocFrame && subdocFrame->HasRetainedPaintData()) {
+ subdocFrame->ClearRetainedPaintData();
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvEnsureLayersConnected(
+ CompositorOptions* aCompositorOptions) {
+ if (mRemoteLayerTreeOwner.IsInitialized()) {
+ mRemoteLayerTreeOwner.EnsureLayersConnected(aCompositorOptions);
+ }
+ return IPC_OK();
+}
+
+void BrowserParent::ActorDestroy(ActorDestroyReason why) {
+ Manager()->NotifyTabDestroyed(mTabId, mMarkedDestroying);
+
+ ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
+ if (cpm) {
+ cpm->UnregisterRemoteFrame(mTabId);
+ }
+
+ if (mRemoteLayerTreeOwner.IsInitialized()) {
+ auto layersId = mRemoteLayerTreeOwner.GetLayersId();
+ if (mFrameElement) {
+ nsSubDocumentFrame* f = do_QueryFrame(mFrameElement->GetPrimaryFrame());
+ if (f && f->HasRetainedPaintData() &&
+ f->GetRemotePaintData().mLayersId == layersId) {
+ f->ClearRetainedPaintData();
+ }
+ }
+
+ // It's important to unmap layers after the remote browser has been
+ // destroyed, otherwise it may still send messages to the compositor which
+ // will reject them, causing assertions.
+ RemoveBrowserParentFromTable(layersId);
+ mRemoteLayerTreeOwner.Destroy();
+ }
+
+ // Even though BrowserParent::Destroy calls this, we need to do it here too in
+ // case of a crash.
+ Deactivated();
+
+ if (why == AbnormalShutdown) {
+ // dom_reporting_header must also be enabled for the report to be sent.
+ if (StaticPrefs::dom_reporting_crash_enabled()) {
+ nsCOMPtr<nsIPrincipal> principal = GetContentPrincipal();
+
+ if (principal) {
+ nsAutoCString crash_reason;
+ CrashReporter::GetAnnotation(OtherPid(),
+ CrashReporter::Annotation::MozCrashReason,
+ crash_reason);
+ // FIXME(arenevier): Find a less fragile way to identify that a crash
+ // was caused by OOM
+ bool is_oom = false;
+ if (crash_reason == "OOM" || crash_reason == "OOM!" ||
+ StringBeginsWith(crash_reason, "[unhandlable oom]"_ns) ||
+ StringBeginsWith(crash_reason, "Unhandlable OOM"_ns)) {
+ is_oom = true;
+ }
+
+ CrashReport::Deliver(principal, is_oom);
+ }
+ }
+ }
+
+ // If we were shutting down normally, we held a reference to our
+ // BrowsingContextGroup in `BrowserParent::Destroy`. Clear that reference
+ // here.
+ if (mMarkedDestroying) {
+ mBrowsingContext->Group()->RemoveKeepAlive();
+ }
+
+ // Tell our embedder that the tab is now going away unless we're an
+ // out-of-process iframe.
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader(true);
+ if (frameLoader) {
+ ReceiveMessage(CHILD_PROCESS_SHUTDOWN_MESSAGE, false, nullptr);
+
+ if (mBrowsingContext->IsTop()) {
+ // If this is a top-level BrowsingContext, tell the frameloader it's time
+ // to go away. Otherwise, this is a subframe crash, and we can keep the
+ // frameloader around.
+ frameLoader->DestroyComplete();
+ }
+
+ // If this was a crash, tell our nsFrameLoader to fire crash events.
+ if (why == AbnormalShutdown) {
+ frameLoader->MaybeNotifyCrashed(mBrowsingContext, Manager()->ChildID(),
+ GetIPCChannel());
+ } else if (why == ManagedEndpointDropped) {
+ // If we instead failed due to a constructor error, don't include process
+ // information, as the process did not crash.
+ frameLoader->MaybeNotifyCrashed(mBrowsingContext, ContentParentId{},
+ nullptr);
+ }
+ }
+
+ mFrameLoader = nullptr;
+
+ // If we were destroyed due to our ManagedEndpoints being dropped, make a
+ // point of showing the subframe crashed UI. We don't fire the full
+ // `MaybeNotifyCrashed` codepath, as the entire process hasn't crashed on us,
+ // and it may confuse the frontend.
+ mBrowsingContext->BrowserParentDestroyed(
+ this, why == AbnormalShutdown || why == ManagedEndpointDropped);
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvMoveFocus(
+ const bool& aForward, const bool& aForDocumentNavigation) {
+ LOGBROWSERFOCUS(("RecvMoveFocus %p, aForward: %d, aForDocumentNavigation: %d",
+ this, aForward, aForDocumentNavigation));
+ BrowserBridgeParent* bridgeParent = GetBrowserBridgeParent();
+ if (bridgeParent) {
+ mozilla::Unused << bridgeParent->SendMoveFocus(aForward,
+ aForDocumentNavigation);
+ return IPC_OK();
+ }
+
+ RefPtr<nsFocusManager> fm = nsFocusManager::GetFocusManager();
+ if (fm) {
+ RefPtr<Element> dummy;
+
+ uint32_t type =
+ aForward
+ ? (aForDocumentNavigation
+ ? static_cast<uint32_t>(
+ nsIFocusManager::MOVEFOCUS_FORWARDDOC)
+ : static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_FORWARD))
+ : (aForDocumentNavigation
+ ? static_cast<uint32_t>(
+ nsIFocusManager::MOVEFOCUS_BACKWARDDOC)
+ : static_cast<uint32_t>(
+ nsIFocusManager::MOVEFOCUS_BACKWARD));
+ fm->MoveFocus(nullptr, mFrameElement, type, nsIFocusManager::FLAG_BYKEY,
+ getter_AddRefs(dummy));
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvDropLinks(
+ nsTArray<nsString>&& aLinks) {
+ nsCOMPtr<nsIBrowser> browser =
+ mFrameElement ? mFrameElement->AsBrowser() : nullptr;
+ if (browser) {
+ // Verify that links have not been modified by the child. If links have
+ // not been modified then it's safe to load those links using the
+ // SystemPrincipal. If they have been modified by web content, then
+ // we use a NullPrincipal which still allows to load web links.
+ bool loadUsingSystemPrincipal = true;
+ if (aLinks.Length() != mVerifyDropLinks.Length()) {
+ loadUsingSystemPrincipal = false;
+ }
+ for (uint32_t i = 0; i < aLinks.Length(); i++) {
+ if (loadUsingSystemPrincipal) {
+ if (!aLinks[i].Equals(mVerifyDropLinks[i])) {
+ loadUsingSystemPrincipal = false;
+ }
+ }
+ }
+ mVerifyDropLinks.Clear();
+ nsCOMPtr<nsIPrincipal> triggeringPrincipal;
+ if (loadUsingSystemPrincipal) {
+ triggeringPrincipal = nsContentUtils::GetSystemPrincipal();
+ } else {
+ triggeringPrincipal = NullPrincipal::CreateWithoutOriginAttributes();
+ }
+ browser->DropLinks(aLinks, triggeringPrincipal);
+ }
+ return IPC_OK();
+}
+
+bool BrowserParent::SendLoadRemoteScript(const nsAString& aURL,
+ const bool& aRunInGlobalScope) {
+ if (mCreatingWindow) {
+ mDelayedFrameScripts.AppendElement(
+ FrameScriptInfo(nsString(aURL), aRunInGlobalScope));
+ return true;
+ }
+
+ MOZ_ASSERT(mDelayedFrameScripts.IsEmpty());
+ return PBrowserParent::SendLoadRemoteScript(aURL, aRunInGlobalScope);
+}
+
+void BrowserParent::LoadURL(nsDocShellLoadState* aLoadState) {
+ MOZ_ASSERT(aLoadState);
+ MOZ_ASSERT(aLoadState->URI());
+ if (mIsDestroyed) {
+ return;
+ }
+
+ if (mCreatingWindow) {
+ // Don't send the message if the child wants to load its own URL.
+ return;
+ }
+
+ Unused << SendLoadURL(WrapNotNull(aLoadState), GetShowInfo());
+}
+
+void BrowserParent::ResumeLoad(uint64_t aPendingSwitchID) {
+ MOZ_ASSERT(aPendingSwitchID != 0);
+
+ if (NS_WARN_IF(mIsDestroyed)) {
+ return;
+ }
+
+ Unused << SendResumeLoad(aPendingSwitchID, GetShowInfo());
+}
+
+void BrowserParent::InitRendering() {
+ if (mRemoteLayerTreeOwner.IsInitialized()) {
+ return;
+ }
+ mRemoteLayerTreeOwner.Initialize(this);
+
+ layers::LayersId layersId = mRemoteLayerTreeOwner.GetLayersId();
+ AddBrowserParentToTable(layersId, this);
+
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
+ if (frameLoader) {
+ nsIFrame* frame = frameLoader->GetPrimaryFrameOfOwningContent();
+ if (frame) {
+ frame->InvalidateFrame();
+ }
+ }
+
+ TextureFactoryIdentifier textureFactoryIdentifier;
+ mRemoteLayerTreeOwner.GetTextureFactoryIdentifier(&textureFactoryIdentifier);
+ Unused << SendInitRendering(textureFactoryIdentifier, layersId,
+ mRemoteLayerTreeOwner.GetCompositorOptions(),
+ mRemoteLayerTreeOwner.IsLayersConnected());
+
+ RefPtr<nsIWidget> widget = GetTopLevelWidget();
+ if (widget) {
+ ScreenIntMargin safeAreaInsets = widget->GetSafeAreaInsets();
+ Unused << SendSafeAreaInsetsChanged(safeAreaInsets);
+ }
+
+#if defined(MOZ_WIDGET_ANDROID)
+ MOZ_ASSERT(widget);
+
+ if (GetBrowsingContext()->IsTopContent()) {
+ Unused << SendDynamicToolbarMaxHeightChanged(
+ widget->GetDynamicToolbarMaxHeight());
+ }
+#endif
+}
+
+bool BrowserParent::AttachWindowRenderer() {
+ return mRemoteLayerTreeOwner.AttachWindowRenderer();
+}
+
+void BrowserParent::MaybeShowFrame() {
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
+ if (!frameLoader) {
+ return;
+ }
+ frameLoader->MaybeShowFrame();
+}
+
+bool BrowserParent::Show(const OwnerShowInfo& aOwnerInfo) {
+ mDimensions = aOwnerInfo.size();
+ if (mIsDestroyed) {
+ return false;
+ }
+
+ MOZ_ASSERT(mRemoteLayerTreeOwner.IsInitialized());
+ if (!mRemoteLayerTreeOwner.AttachWindowRenderer()) {
+ return false;
+ }
+
+ mSizeMode = aOwnerInfo.sizeMode();
+ Unused << SendShow(GetShowInfo(), aOwnerInfo);
+ return true;
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSetDimensions(
+ mozilla::DimensionRequest aRequest, const double& aScale) {
+ NS_ENSURE_TRUE(mFrameElement, IPC_OK());
+ nsCOMPtr<nsIDocShell> docShell = mFrameElement->OwnerDoc()->GetDocShell();
+ NS_ENSURE_TRUE(docShell, IPC_OK());
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
+ docShell->GetTreeOwner(getter_AddRefs(treeOwner));
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = do_QueryInterface(treeOwner);
+ NS_ENSURE_TRUE(treeOwnerAsWin, IPC_OK());
+
+ // `BrowserChild` only sends the values to actually be changed, see more
+ // details in `BrowserChild::SetDimensions()`.
+ // Note that `BrowserChild::SetDimensions()` may be called before receiving
+ // our `SendUIResolutionChanged()` call. Therefore, if given each coordinate
+ // shouldn't be ignored, we need to recompute it if DPI has been changed.
+ // And also note that don't use `mDefaultScale.scale` here since it may be
+ // different from the result of `GetWidgetCSSToDeviceScale()`.
+ // NOTE(emilio): We use GetWidgetCSSToDeviceScale() because the old scale is a
+ // widget scale, and we only use the current scale to scale up/down the
+ // relevant values.
+
+ CSSToLayoutDeviceScale oldScale((float)aScale);
+ CSSToLayoutDeviceScale currentScale(
+ (float)treeOwnerAsWin->GetWidgetCSSToDeviceScale());
+
+ if (oldScale != currentScale) {
+ auto rescaleFunc = [&oldScale, &currentScale](LayoutDeviceIntCoord& aVal) {
+ aVal = (LayoutDeviceCoord(aVal) / oldScale * currentScale).Rounded();
+ };
+ aRequest.mX.apply(rescaleFunc);
+ aRequest.mY.apply(rescaleFunc);
+ aRequest.mWidth.apply(rescaleFunc);
+ aRequest.mHeight.apply(rescaleFunc);
+ }
+
+ // treeOwner is the chrome tree owner, but we wan't the content tree owner.
+ nsCOMPtr<nsIWebBrowserChrome> webBrowserChrome = do_GetInterface(treeOwner);
+ NS_ENSURE_TRUE(webBrowserChrome, IPC_OK());
+ webBrowserChrome->SetDimensions(std::move(aRequest));
+ return IPC_OK();
+}
+
+nsresult BrowserParent::UpdatePosition() {
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
+ if (!frameLoader) {
+ return NS_OK;
+ }
+ nsIntRect windowDims;
+ NS_ENSURE_SUCCESS(frameLoader->GetWindowDimensions(windowDims),
+ NS_ERROR_FAILURE);
+ // Avoid updating sizes here.
+ windowDims.SizeTo(mRect.Size());
+ UpdateDimensions(windowDims, mDimensions);
+ return NS_OK;
+}
+
+void BrowserParent::NotifyPositionUpdatedForContentsInPopup() {
+ if (CanonicalBrowsingContext* bc = GetBrowsingContext()) {
+ bc->PreOrderWalk([](BrowsingContext* aContext) {
+ if (WindowGlobalParent* windowGlobalParent =
+ aContext->Canonical()->GetCurrentWindowGlobal()) {
+ if (RefPtr<BrowserParent> browserParent =
+ windowGlobalParent->GetBrowserParent()) {
+ browserParent->UpdatePosition();
+ }
+ }
+ });
+ }
+}
+
+void BrowserParent::UpdateDimensions(const nsIntRect& rect,
+ const ScreenIntSize& size) {
+ if (mIsDestroyed) {
+ return;
+ }
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ NS_WARNING("No widget found in BrowserParent::UpdateDimensions");
+ return;
+ }
+
+ LayoutDeviceIntPoint clientOffset = GetClientOffset();
+ LayoutDeviceIntPoint chromeOffset = !GetBrowserBridgeParent()
+ ? -GetChildProcessOffset()
+ : LayoutDeviceIntPoint();
+
+ if (!mUpdatedDimensions || mDimensions != size || !mRect.IsEqualEdges(rect) ||
+ clientOffset != mClientOffset || chromeOffset != mChromeOffset) {
+ mUpdatedDimensions = true;
+ mRect = rect;
+ mDimensions = size;
+ mClientOffset = clientOffset;
+ mChromeOffset = chromeOffset;
+
+ Unused << SendUpdateDimensions(GetDimensionInfo());
+ UpdateNativePointerLockCenter(widget);
+ }
+}
+
+DimensionInfo BrowserParent::GetDimensionInfo() {
+ LayoutDeviceIntRect devicePixelRect = ViewAs<LayoutDevicePixel>(
+ mRect, PixelCastJustification::LayoutDeviceIsScreenForTabDims);
+ LayoutDeviceIntSize devicePixelSize = ViewAs<LayoutDevicePixel>(
+ mDimensions, PixelCastJustification::LayoutDeviceIsScreenForTabDims);
+
+ CSSRect unscaledRect = devicePixelRect / mDefaultScale;
+ CSSSize unscaledSize = devicePixelSize / mDefaultScale;
+ DimensionInfo di(unscaledRect, unscaledSize, mClientOffset, mChromeOffset);
+ return di;
+}
+
+void BrowserParent::UpdateNativePointerLockCenter(nsIWidget* aWidget) {
+ if (!mLockedNativePointer) {
+ return;
+ }
+ LayoutDeviceIntRect dims(
+ {0, 0},
+ ViewAs<LayoutDevicePixel>(
+ mDimensions, PixelCastJustification::LayoutDeviceIsScreenForTabDims));
+ aWidget->SetNativePointerLockCenter((dims + mChromeOffset).Center());
+}
+
+void BrowserParent::SizeModeChanged(const nsSizeMode& aSizeMode) {
+ if (!mIsDestroyed && aSizeMode != mSizeMode) {
+ mSizeMode = aSizeMode;
+ Unused << SendSizeModeChanged(aSizeMode);
+ }
+}
+
+#if defined(MOZ_WIDGET_ANDROID)
+void BrowserParent::DynamicToolbarMaxHeightChanged(ScreenIntCoord aHeight) {
+ if (!mIsDestroyed) {
+ Unused << SendDynamicToolbarMaxHeightChanged(aHeight);
+ }
+}
+
+void BrowserParent::DynamicToolbarOffsetChanged(ScreenIntCoord aOffset) {
+ if (!mIsDestroyed) {
+ Unused << SendDynamicToolbarOffsetChanged(aOffset);
+ }
+}
+#endif
+
+void BrowserParent::HandleAccessKey(const WidgetKeyboardEvent& aEvent,
+ nsTArray<uint32_t>& aCharCodes) {
+ if (!mIsDestroyed) {
+ // Note that we don't need to mark aEvent is posted to a remote process
+ // because the event may be dispatched to it as normal keyboard event.
+ // Therefore, we should use local copy to send it.
+ WidgetKeyboardEvent localEvent(aEvent);
+ RequestingAccessKeyEventData::Set(localEvent);
+ Unused << SendHandleAccessKey(localEvent, aCharCodes);
+ }
+}
+
+void BrowserParent::Activate(uint64_t aActionId) {
+ LOGBROWSERFOCUS(("Activate %p actionid: %" PRIu64, this, aActionId));
+ if (!mIsDestroyed) {
+ SetTopLevelWebFocus(this); // Intentionally inside "if"
+ Unused << SendActivate(aActionId);
+ }
+}
+
+void BrowserParent::Deactivate(bool aWindowLowering, uint64_t aActionId) {
+ LOGBROWSERFOCUS(("Deactivate %p actionid: %" PRIu64, this, aActionId));
+ if (!aWindowLowering) {
+ UnsetTopLevelWebFocus(this); // Intentionally outside the next "if"
+ }
+ if (!mIsDestroyed) {
+ Unused << SendDeactivate(aActionId);
+ }
+}
+
+#ifdef ACCESSIBILITY
+a11y::PDocAccessibleParent* BrowserParent::AllocPDocAccessibleParent(
+ PDocAccessibleParent* aParent, const uint64_t&,
+ const MaybeDiscardedBrowsingContext&) {
+ // Reference freed in DeallocPDocAccessibleParent.
+ return a11y::DocAccessibleParent::New().take();
+}
+
+bool BrowserParent::DeallocPDocAccessibleParent(PDocAccessibleParent* aParent) {
+ // Free reference from AllocPDocAccessibleParent.
+ static_cast<a11y::DocAccessibleParent*>(aParent)->Release();
+ return true;
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvPDocAccessibleConstructor(
+ PDocAccessibleParent* aDoc, PDocAccessibleParent* aParentDoc,
+ const uint64_t& aParentID,
+ const MaybeDiscardedBrowsingContext& aBrowsingContext) {
+# if defined(ANDROID)
+ MonitorAutoLock mal(nsAccessibilityService::GetAndroidMonitor());
+# endif
+ auto doc = static_cast<a11y::DocAccessibleParent*>(aDoc);
+
+ // If this tab is already shutting down just mark the new actor as shutdown
+ // and ignore it. When the tab actor is destroyed it will be too.
+ if (mIsDestroyed) {
+ doc->MarkAsShutdown();
+ return IPC_OK();
+ }
+
+ if (aParentDoc) {
+ // Iframe document rendered in the same process as its embedder.
+ // A document should never directly be the parent of another document.
+ // There should always be an outer doc accessible child of the outer
+ // document containing the child.
+ MOZ_ASSERT(aParentID);
+ if (!aParentID) {
+ return IPC_FAIL_NO_REASON(this);
+ }
+
+ auto parentDoc = static_cast<a11y::DocAccessibleParent*>(aParentDoc);
+ if (parentDoc->IsShutdown()) {
+ // This can happen if parentDoc is an OOP iframe, but its embedder has
+ // been destroyed. (DocAccessibleParent::Destroy destroys any child
+ // documents.) The OOP iframe (and anything it embeds) will die soon
+ // anyway, so mark this document as shutdown and ignore it.
+ doc->MarkAsShutdown();
+ return IPC_OK();
+ }
+
+ if (aBrowsingContext) {
+ doc->SetBrowsingContext(aBrowsingContext.get_canonical());
+ }
+
+ mozilla::ipc::IPCResult added = parentDoc->AddChildDoc(doc, aParentID);
+ if (!added) {
+# ifdef DEBUG
+ return added;
+# else
+ return IPC_OK();
+# endif
+ }
+
+# ifdef XP_WIN
+ if (a11y::nsWinUtils::IsWindowEmulationStarted()) {
+ doc->SetEmulatedWindowHandle(parentDoc->GetEmulatedWindowHandle());
+ }
+# endif
+
+ return IPC_OK();
+ }
+
+ if (aBrowsingContext) {
+ doc->SetBrowsingContext(aBrowsingContext.get_canonical());
+ }
+
+ if (auto* bridge = GetBrowserBridgeParent()) {
+ // Iframe document rendered in a different process to its embedder.
+ // In this case, we don't get aParentDoc and aParentID.
+ MOZ_ASSERT(!aParentDoc && !aParentID);
+ doc->SetTopLevelInContentProcess();
+ a11y::ProxyCreated(doc);
+ // It's possible the embedder accessible hasn't been set yet; e.g.
+ // a hidden iframe. In that case, embedderDoc will be null and this will
+ // be handled when the embedder is set.
+ if (a11y::DocAccessibleParent* embedderDoc =
+ bridge->GetEmbedderAccessibleDoc()) {
+ mozilla::ipc::IPCResult added = embedderDoc->AddChildDoc(bridge);
+ if (!added) {
+# ifdef DEBUG
+ return added;
+# else
+ return IPC_OK();
+# endif
+ }
+ }
+ return IPC_OK();
+ } else {
+ // null aParentDoc means this document is at the top level in the child
+ // process. That means it makes no sense to get an id for an accessible
+ // that is its parent.
+ MOZ_ASSERT(!aParentID);
+ if (aParentID) {
+ return IPC_FAIL_NO_REASON(this);
+ }
+
+ if (auto* prevTopLevel = GetTopLevelDocAccessible()) {
+ // Sometimes, we can get a new top level DocAccessibleParent before the
+ // old one gets destroyed. The old one will die pretty shortly anyway,
+ // so just destroy it now. If we don't do this, GetTopLevelDocAccessible()
+ // might return the wrong document for a short while.
+ prevTopLevel->Destroy();
+ }
+ doc->SetTopLevel();
+ a11y::DocManager::RemoteDocAdded(doc);
+# ifdef XP_WIN
+ doc->MaybeInitWindowEmulation();
+# endif
+ }
+ return IPC_OK();
+}
+#endif
+
+already_AddRefed<PFilePickerParent> BrowserParent::AllocPFilePickerParent(
+ const nsString& aTitle, const nsIFilePicker::Mode& aMode) {
+ return MakeAndAddRef<FilePickerParent>(aTitle, aMode);
+}
+
+already_AddRefed<PSessionStoreParent>
+BrowserParent::AllocPSessionStoreParent() {
+ RefPtr<BrowserSessionStore> sessionStore =
+ BrowserSessionStore::GetOrCreate(mBrowsingContext->Top());
+ if (!sessionStore) {
+ return nullptr;
+ }
+
+ return do_AddRef(new SessionStoreParent(mBrowsingContext, sessionStore));
+}
+
+IPCResult BrowserParent::RecvNewWindowGlobal(
+ ManagedEndpoint<PWindowGlobalParent>&& aEndpoint,
+ const WindowGlobalInit& aInit) {
+ RefPtr<CanonicalBrowsingContext> browsingContext =
+ CanonicalBrowsingContext::Get(aInit.context().mBrowsingContextId);
+ if (!browsingContext) {
+ return IPC_FAIL(this, "Cannot create for missing BrowsingContext");
+ }
+ if (!aInit.principal()) {
+ return IPC_FAIL(this, "Cannot create without valid principal");
+ }
+
+ // Ensure we never load a document with a content principal in
+ // the wrong type of webIsolated process
+ EnumSet<ContentParent::ValidatePrincipalOptions> validationOptions = {};
+ nsCOMPtr<nsIURI> docURI = aInit.documentURI();
+ if (docURI->SchemeIs("about") || docURI->SchemeIs("blob") ||
+ docURI->SchemeIs("chrome")) {
+ // XXXckerschb TODO - Do not use SystemPrincipal for:
+ // Bug 1700639: about:plugins
+ // Bug 1699385: Remove allowSystem for blobs
+ // Bug 1698087: chrome://devtools/content/shared/webextension-fallback.html
+ // chrome reftests, e.g.
+ // * chrome://reftest/content/writing-mode/ua-style-sheet-button-1a-ref.html
+ // * chrome://reftest/content/xul-document-load/test003.xhtml
+ // * chrome://reftest/content/forms/input/text/centering-1.xhtml
+ validationOptions = {ContentParent::ValidatePrincipalOptions::AllowSystem};
+ }
+
+ if (!mManager->ValidatePrincipal(aInit.principal(), validationOptions)) {
+ ContentParent::LogAndAssertFailedPrincipalValidationInfo(aInit.principal(),
+ __func__);
+ }
+
+ // Construct our new WindowGlobalParent, bind, and initialize it.
+ RefPtr<WindowGlobalParent> wgp =
+ WindowGlobalParent::CreateDisconnected(aInit);
+ BindPWindowGlobalEndpoint(std::move(aEndpoint), wgp);
+ wgp->Init();
+ return IPC_OK();
+}
+
+PVsyncParent* BrowserParent::AllocPVsyncParent() {
+ MOZ_ASSERT(!mVsyncParent);
+ mVsyncParent = new VsyncParent();
+ UpdateVsyncParentVsyncDispatcher();
+ return mVsyncParent.get();
+}
+
+bool BrowserParent::DeallocPVsyncParent(PVsyncParent* aActor) {
+ MOZ_ASSERT(aActor);
+ mVsyncParent = nullptr;
+ return true;
+}
+
+void BrowserParent::UpdateVsyncParentVsyncDispatcher() {
+ if (!mVsyncParent) {
+ return;
+ }
+
+ if (nsCOMPtr<nsIWidget> widget = GetWidget()) {
+ RefPtr<VsyncDispatcher> vsyncDispatcher = widget->GetVsyncDispatcher();
+ if (!vsyncDispatcher) {
+ vsyncDispatcher = gfxPlatform::GetPlatform()->GetGlobalVsyncDispatcher();
+ }
+ mVsyncParent->UpdateVsyncDispatcher(vsyncDispatcher);
+ }
+}
+
+void BrowserParent::MouseEnterIntoWidget() {
+ if (nsCOMPtr<nsIWidget> widget = GetWidget()) {
+ // When we mouseenter the remote target, the remote target's cursor should
+ // become the current cursor. When we mouseexit, we stop.
+ mRemoteTargetSetsCursor = true;
+ widget->SetCursor(mCursor);
+ }
+
+ // Mark that we have missed a mouse enter event, so that
+ // the next mouse event will create a replacement mouse
+ // enter event and send it to the child.
+ mIsMouseEnterIntoWidgetEventSuppressed = true;
+}
+
+void BrowserParent::SendRealMouseEvent(WidgetMouseEvent& aEvent) {
+ if (mIsDestroyed) {
+ return;
+ }
+
+ // XXXedgar, if the synthesized mouse events could deliver to the correct
+ // process directly (see
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1549355), we probably don't
+ // need to check mReason then.
+ if (aEvent.mReason == WidgetMouseEvent::eReal) {
+ if (aEvent.mMessage == eMouseExitFromWidget) {
+ // Since we are leaving this remote target, so don't need to update
+ // sLastMouseRemoteTarget, and if we are sLastMouseRemoteTarget, reset it
+ // to null.
+ BrowserParent::UnsetLastMouseRemoteTarget(this);
+ } else {
+ // Last remote target should not be changed without eMouseExitFromWidget.
+ MOZ_ASSERT_IF(sLastMouseRemoteTarget, sLastMouseRemoteTarget == this);
+ sLastMouseRemoteTarget = this;
+ }
+ }
+
+ aEvent.mRefPoint = TransformParentToChild(aEvent.mRefPoint);
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ // When we mouseenter the remote target, the remote target's cursor should
+ // become the current cursor. When we mouseexit, we stop.
+ if (eMouseEnterIntoWidget == aEvent.mMessage) {
+ mRemoteTargetSetsCursor = true;
+ widget->SetCursor(mCursor);
+ } else if (eMouseExitFromWidget == aEvent.mMessage) {
+ mRemoteTargetSetsCursor = false;
+ }
+ }
+ if (!mIsReadyToHandleInputEvents) {
+ if (eMouseEnterIntoWidget == aEvent.mMessage) {
+ mIsMouseEnterIntoWidgetEventSuppressed = true;
+ } else if (eMouseExitFromWidget == aEvent.mMessage) {
+ mIsMouseEnterIntoWidgetEventSuppressed = false;
+ }
+ return;
+ }
+
+ ScrollableLayerGuid guid;
+ uint64_t blockId;
+ ApzAwareEventRoutingToChild(&guid, &blockId, nullptr);
+
+ bool isInputPriorityEventEnabled = Manager()->IsInputPriorityEventEnabled();
+
+ if (mIsMouseEnterIntoWidgetEventSuppressed) {
+ // In the case that the BrowserParent suppressed the eMouseEnterWidget event
+ // due to its corresponding BrowserChild wasn't ready to handle it, we have
+ // to resend it when the BrowserChild is ready.
+ mIsMouseEnterIntoWidgetEventSuppressed = false;
+ WidgetMouseEvent localEvent(aEvent);
+ localEvent.mMessage = eMouseEnterIntoWidget;
+ DebugOnly<bool> ret =
+ isInputPriorityEventEnabled
+ ? SendRealMouseEnterExitWidgetEvent(localEvent, guid, blockId)
+ : SendNormalPriorityRealMouseEnterExitWidgetEvent(localEvent, guid,
+ blockId);
+ NS_WARNING_ASSERTION(ret, "SendRealMouseEnterExitWidgetEvent() failed");
+ MOZ_ASSERT(!ret || localEvent.HasBeenPostedToRemoteProcess());
+ }
+
+ if (eMouseMove == aEvent.mMessage) {
+ if (aEvent.mReason == WidgetMouseEvent::eSynthesized) {
+ DebugOnly<bool> ret =
+ isInputPriorityEventEnabled
+ ? SendSynthMouseMoveEvent(aEvent, guid, blockId)
+ : SendNormalPrioritySynthMouseMoveEvent(aEvent, guid, blockId);
+ NS_WARNING_ASSERTION(ret, "SendSynthMouseMoveEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+ return;
+ }
+
+ if (!aEvent.mFlags.mIsSynthesizedForTests) {
+ DebugOnly<bool> ret =
+ isInputPriorityEventEnabled
+ ? SendRealMouseMoveEvent(aEvent, guid, blockId)
+ : SendNormalPriorityRealMouseMoveEvent(aEvent, guid, blockId);
+ NS_WARNING_ASSERTION(ret, "SendRealMouseMoveEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+ return;
+ }
+
+ DebugOnly<bool> ret =
+ isInputPriorityEventEnabled
+ ? SendRealMouseMoveEventForTests(aEvent, guid, blockId)
+ : SendNormalPriorityRealMouseMoveEventForTests(aEvent, guid,
+ blockId);
+ NS_WARNING_ASSERTION(ret, "SendRealMouseMoveEventForTests() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+ return;
+ }
+
+ if (eMouseEnterIntoWidget == aEvent.mMessage ||
+ eMouseExitFromWidget == aEvent.mMessage) {
+ DebugOnly<bool> ret =
+ isInputPriorityEventEnabled
+ ? SendRealMouseEnterExitWidgetEvent(aEvent, guid, blockId)
+ : SendNormalPriorityRealMouseEnterExitWidgetEvent(aEvent, guid,
+ blockId);
+ NS_WARNING_ASSERTION(ret, "SendRealMouseEnterExitWidgetEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+ return;
+ }
+
+ DebugOnly<bool> ret =
+ isInputPriorityEventEnabled
+ ? SendRealMouseButtonEvent(aEvent, guid, blockId)
+ : SendNormalPriorityRealMouseButtonEvent(aEvent, guid, blockId);
+ NS_WARNING_ASSERTION(ret, "SendRealMouseButtonEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+}
+
+LayoutDeviceToCSSScale BrowserParent::GetLayoutDeviceToCSSScale() {
+ Document* doc = (mFrameElement ? mFrameElement->OwnerDoc() : nullptr);
+ nsPresContext* ctx = (doc ? doc->GetPresContext() : nullptr);
+ return LayoutDeviceToCSSScale(
+ ctx ? (float)ctx->AppUnitsPerDevPixel() / AppUnitsPerCSSPixel() : 0.0f);
+}
+
+bool BrowserParent::QueryDropLinksForVerification() {
+ // Before sending the dragEvent, we query the links being dragged and
+ // store them on the parent, to make sure the child can not modify links.
+ nsCOMPtr<nsIDragSession> dragSession = nsContentUtils::GetDragSession();
+ if (!dragSession) {
+ NS_WARNING("No dragSession to query links for verification");
+ return false;
+ }
+
+ RefPtr<DataTransfer> initialDataTransfer = dragSession->GetDataTransfer();
+ if (!initialDataTransfer) {
+ NS_WARNING("No initialDataTransfer to query links for verification");
+ return false;
+ }
+
+ nsCOMPtr<nsIDroppedLinkHandler> dropHandler =
+ do_GetService("@mozilla.org/content/dropped-link-handler;1");
+ if (!dropHandler) {
+ NS_WARNING("No dropHandler to query links for verification");
+ return false;
+ }
+
+ // No more than one drop event can happen simultaneously; reset the link
+ // verification array and store all links that are being dragged.
+ mVerifyDropLinks.Clear();
+
+ nsTArray<RefPtr<nsIDroppedLinkItem>> droppedLinkItems;
+ dropHandler->QueryLinks(initialDataTransfer, droppedLinkItems);
+
+ // Since the entire event is cancelled if one of the links is invalid,
+ // we can store all links on the parent side without any prior
+ // validation checks.
+ nsresult rv = NS_OK;
+ for (nsIDroppedLinkItem* item : droppedLinkItems) {
+ nsString tmp;
+ rv = item->GetUrl(tmp);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to query url for verification");
+ break;
+ }
+ mVerifyDropLinks.AppendElement(tmp);
+
+ rv = item->GetName(tmp);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to query name for verification");
+ break;
+ }
+ mVerifyDropLinks.AppendElement(tmp);
+
+ rv = item->GetType(tmp);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to query type for verification");
+ break;
+ }
+ mVerifyDropLinks.AppendElement(tmp);
+ }
+ if (NS_FAILED(rv)) {
+ mVerifyDropLinks.Clear();
+ return false;
+ }
+ return true;
+}
+
+void BrowserParent::SendRealDragEvent(WidgetDragEvent& aEvent,
+ uint32_t aDragAction,
+ uint32_t aDropEffect,
+ nsIPrincipal* aPrincipal,
+ nsIContentSecurityPolicy* aCsp) {
+ if (mIsDestroyed || !mIsReadyToHandleInputEvents) {
+ return;
+ }
+ MOZ_ASSERT(!Manager()->IsInputPriorityEventEnabled());
+ aEvent.mRefPoint = TransformParentToChild(aEvent.mRefPoint);
+ if (aEvent.mMessage == eDrop) {
+ if (!QueryDropLinksForVerification()) {
+ return;
+ }
+ }
+ DebugOnly<bool> ret = PBrowserParent::SendRealDragEvent(
+ aEvent, aDragAction, aDropEffect, aPrincipal, aCsp);
+ NS_WARNING_ASSERTION(ret, "PBrowserParent::SendRealDragEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+}
+
+void BrowserParent::SendMouseWheelEvent(WidgetWheelEvent& aEvent) {
+ if (mIsDestroyed || !mIsReadyToHandleInputEvents) {
+ return;
+ }
+
+ ScrollableLayerGuid guid;
+ uint64_t blockId;
+ ApzAwareEventRoutingToChild(&guid, &blockId, nullptr);
+ aEvent.mRefPoint = TransformParentToChild(aEvent.mRefPoint);
+ DebugOnly<bool> ret =
+ Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendMouseWheelEvent(aEvent, guid, blockId)
+ : PBrowserParent::SendNormalPriorityMouseWheelEvent(aEvent, guid,
+ blockId);
+
+ NS_WARNING_ASSERTION(ret, "PBrowserParent::SendMouseWheelEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvDispatchWheelEvent(
+ const mozilla::WidgetWheelEvent& aEvent) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ WidgetWheelEvent localEvent(aEvent);
+ localEvent.mWidget = widget;
+ localEvent.mRefPoint = TransformChildToParent(localEvent.mRefPoint);
+
+ widget->DispatchInputEvent(&localEvent);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvDispatchMouseEvent(
+ const mozilla::WidgetMouseEvent& aEvent) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ WidgetMouseEvent localEvent(aEvent);
+ localEvent.mWidget = widget;
+ localEvent.mRefPoint = TransformChildToParent(localEvent.mRefPoint);
+
+ widget->DispatchInputEvent(&localEvent);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvDispatchKeyboardEvent(
+ const mozilla::WidgetKeyboardEvent& aEvent) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ WidgetKeyboardEvent localEvent(aEvent);
+ localEvent.mWidget = widget;
+ localEvent.mRefPoint = TransformChildToParent(localEvent.mRefPoint);
+
+ widget->DispatchInputEvent(&localEvent);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvDispatchTouchEvent(
+ const mozilla::WidgetTouchEvent& aEvent) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ WidgetTouchEvent localEvent(aEvent);
+ localEvent.mWidget = widget;
+
+ for (uint32_t i = 0; i < localEvent.mTouches.Length(); i++) {
+ localEvent.mTouches[i]->mRefPoint =
+ TransformChildToParent(localEvent.mTouches[i]->mRefPoint);
+ }
+
+ widget->DispatchInputEvent(&localEvent);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRequestNativeKeyBindings(
+ const uint32_t& aType, const WidgetKeyboardEvent& aEvent,
+ nsTArray<CommandInt>* aCommands) {
+ MOZ_ASSERT(aCommands);
+ MOZ_ASSERT(aCommands->IsEmpty());
+
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ NativeKeyBindingsType keyBindingsType =
+ static_cast<NativeKeyBindingsType>(aType);
+ switch (keyBindingsType) {
+ case NativeKeyBindingsType::SingleLineEditor:
+ case NativeKeyBindingsType::MultiLineEditor:
+ case NativeKeyBindingsType::RichTextEditor:
+ break;
+ default:
+ return IPC_FAIL(this, "Invalid aType value");
+ }
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ WidgetKeyboardEvent localEvent(aEvent);
+ localEvent.mWidget = widget;
+
+ if (NS_FAILED(widget->AttachNativeKeyEvent(localEvent))) {
+ return IPC_OK();
+ }
+
+ Maybe<WritingMode> writingMode;
+ if (RefPtr<widget::TextEventDispatcher> dispatcher =
+ widget->GetTextEventDispatcher()) {
+ writingMode = dispatcher->MaybeQueryWritingModeAtSelection();
+ }
+ if (localEvent.InitEditCommandsFor(keyBindingsType, writingMode)) {
+ *aCommands = localEvent.EditCommandsConstRef(keyBindingsType).Clone();
+ }
+
+ return IPC_OK();
+}
+
+class SynthesizedEventObserver : public nsIObserver {
+ NS_DECL_ISUPPORTS
+
+ public:
+ SynthesizedEventObserver(BrowserParent* aBrowserParent,
+ const uint64_t& aObserverId)
+ : mBrowserParent(aBrowserParent), mObserverId(aObserverId) {
+ MOZ_ASSERT(mBrowserParent);
+ }
+
+ NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic,
+ const char16_t* aData) override {
+ if (!mBrowserParent || !mObserverId) {
+ // We already sent the notification, or we don't actually need to
+ // send any notification at all.
+ return NS_OK;
+ }
+
+ if (mBrowserParent->IsDestroyed()) {
+ // If this happens it's probably a bug in the test that's triggering this.
+ NS_WARNING(
+ "BrowserParent was unexpectedly destroyed during event "
+ "synthesization!");
+ } else if (!mBrowserParent->SendNativeSynthesisResponse(
+ mObserverId, nsCString(aTopic))) {
+ NS_WARNING("Unable to send native event synthesization response!");
+ }
+ // Null out browserParent to indicate we already sent the response
+ mBrowserParent = nullptr;
+ return NS_OK;
+ }
+
+ private:
+ virtual ~SynthesizedEventObserver() = default;
+
+ RefPtr<BrowserParent> mBrowserParent;
+ uint64_t mObserverId;
+};
+
+NS_IMPL_ISUPPORTS(SynthesizedEventObserver, nsIObserver)
+
+class MOZ_STACK_CLASS AutoSynthesizedEventResponder {
+ public:
+ AutoSynthesizedEventResponder(BrowserParent* aBrowserParent,
+ const uint64_t& aObserverId, const char* aTopic)
+ : mObserver(new SynthesizedEventObserver(aBrowserParent, aObserverId)),
+ mTopic(aTopic) {}
+
+ ~AutoSynthesizedEventResponder() {
+ // This may be a no-op if the observer already sent a response.
+ mObserver->Observe(nullptr, mTopic, nullptr);
+ }
+
+ nsIObserver* GetObserver() { return mObserver; }
+
+ private:
+ nsCOMPtr<nsIObserver> mObserver;
+ const char* mTopic;
+};
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeKeyEvent(
+ const int32_t& aNativeKeyboardLayout, const int32_t& aNativeKeyCode,
+ const uint32_t& aModifierFlags, const nsString& aCharacters,
+ const nsString& aUnmodifiedCharacters, const uint64_t& aObserverId) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ AutoSynthesizedEventResponder responder(this, aObserverId, "keyevent");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeKeyEvent(
+ aNativeKeyboardLayout, aNativeKeyCode, aModifierFlags, aCharacters,
+ aUnmodifiedCharacters, responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeMouseEvent(
+ const LayoutDeviceIntPoint& aPoint, const uint32_t& aNativeMessage,
+ const int16_t& aButton, const uint32_t& aModifierFlags,
+ const uint64_t& aObserverId) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ const uint32_t last =
+ static_cast<uint32_t>(nsIWidget::NativeMouseMessage::LeaveWindow);
+ NS_ENSURE_TRUE(aNativeMessage <= last, IPC_FAIL(this, "Bogus message"));
+ AutoSynthesizedEventResponder responder(this, aObserverId, "mouseevent");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeMouseEvent(
+ aPoint, static_cast<nsIWidget::NativeMouseMessage>(aNativeMessage),
+ static_cast<mozilla::MouseButton>(aButton),
+ static_cast<nsIWidget::Modifiers>(aModifierFlags),
+ responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeMouseMove(
+ const LayoutDeviceIntPoint& aPoint, const uint64_t& aObserverId) {
+ // This is used by pointer lock API. So, even if it's not in the automation
+ // mode, we need to accept the request.
+ AutoSynthesizedEventResponder responder(this, aObserverId, "mousemove");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeMouseMove(aPoint, responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeMouseScrollEvent(
+ const LayoutDeviceIntPoint& aPoint, const uint32_t& aNativeMessage,
+ const double& aDeltaX, const double& aDeltaY, const double& aDeltaZ,
+ const uint32_t& aModifierFlags, const uint32_t& aAdditionalFlags,
+ const uint64_t& aObserverId) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ AutoSynthesizedEventResponder responder(this, aObserverId,
+ "mousescrollevent");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeMouseScrollEvent(
+ aPoint, aNativeMessage, aDeltaX, aDeltaY, aDeltaZ, aModifierFlags,
+ aAdditionalFlags, responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeTouchPoint(
+ const uint32_t& aPointerId, const TouchPointerState& aPointerState,
+ const LayoutDeviceIntPoint& aPoint, const double& aPointerPressure,
+ const uint32_t& aPointerOrientation, const uint64_t& aObserverId) {
+ // This is used by DevTools to emulate touch events from mouse events in the
+ // responsive design mode. Therefore, we should accept the IPC messages even
+ // if it's not in the automation mode but the browsing context is in RDM pane.
+ // And the IPC message could be just delayed after closing the responsive
+ // design mode. Therefore, we shouldn't return IPC_FAIL since doing it makes
+ // the tab crash.
+ if (!xpc::IsInAutomation()) {
+ NS_ENSURE_TRUE(mBrowsingContext, IPC_OK());
+ NS_ENSURE_TRUE(mBrowsingContext->Top()->GetInRDMPane(), IPC_OK());
+ }
+
+ AutoSynthesizedEventResponder responder(this, aObserverId, "touchpoint");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeTouchPoint(aPointerId, aPointerState, aPoint,
+ aPointerPressure, aPointerOrientation,
+ responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeTouchPadPinch(
+ const TouchpadGesturePhase& aEventPhase, const float& aScale,
+ const LayoutDeviceIntPoint& aPoint, const int32_t& aModifierFlags) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeTouchPadPinch(aEventPhase, aScale, aPoint,
+ aModifierFlags);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeTouchTap(
+ const LayoutDeviceIntPoint& aPoint, const bool& aLongTap,
+ const uint64_t& aObserverId) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ AutoSynthesizedEventResponder responder(this, aObserverId, "touchtap");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeTouchTap(aPoint, aLongTap, responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvClearNativeTouchSequence(
+ const uint64_t& aObserverId) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ AutoSynthesizedEventResponder responder(this, aObserverId, "cleartouch");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->ClearNativeTouchSequence(responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativePenInput(
+ const uint32_t& aPointerId, const TouchPointerState& aPointerState,
+ const LayoutDeviceIntPoint& aPoint, const double& aPressure,
+ const uint32_t& aRotation, const int32_t& aTiltX, const int32_t& aTiltY,
+ const int32_t& aButton, const uint64_t& aObserverId) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ AutoSynthesizedEventResponder responder(this, aObserverId, "peninput");
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativePenInput(aPointerId, aPointerState, aPoint,
+ aPressure, aRotation, aTiltX, aTiltY,
+ aButton, responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeTouchpadDoubleTap(
+ const LayoutDeviceIntPoint& aPoint, const uint32_t& aModifierFlags) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeTouchpadDoubleTap(aPoint, aModifierFlags);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSynthesizeNativeTouchpadPan(
+ const TouchpadGesturePhase& aEventPhase, const LayoutDeviceIntPoint& aPoint,
+ const double& aDeltaX, const double& aDeltaY, const int32_t& aModifierFlags,
+ const uint64_t& aObserverId) {
+ NS_ENSURE_TRUE(xpc::IsInAutomation(), IPC_FAIL(this, "Unexpected event"));
+
+ AutoSynthesizedEventResponder responder(this, aObserverId,
+ "touchpadpanevent");
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SynthesizeNativeTouchpadPan(aEventPhase, aPoint, aDeltaX, aDeltaY,
+ aModifierFlags,
+ responder.GetObserver());
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvLockNativePointer() {
+ if (nsCOMPtr<nsIWidget> widget = GetWidget()) {
+ mLockedNativePointer = true; // do before updating the center
+ UpdateNativePointerLockCenter(widget);
+ widget->LockNativePointer();
+ }
+ return IPC_OK();
+}
+
+void BrowserParent::UnlockNativePointer() {
+ if (!mLockedNativePointer) {
+ return;
+ }
+ if (nsCOMPtr<nsIWidget> widget = GetWidget()) {
+ widget->UnlockNativePointer();
+ mLockedNativePointer = false;
+ }
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvUnlockNativePointer() {
+ UnlockNativePointer();
+ return IPC_OK();
+}
+
+void BrowserParent::SendRealKeyEvent(WidgetKeyboardEvent& aEvent) {
+ if (mIsDestroyed || !mIsReadyToHandleInputEvents) {
+ return;
+ }
+ aEvent.mRefPoint = TransformParentToChild(aEvent.mRefPoint);
+
+ // NOTE: If you call `InitAllEditCommands()` for the other messages too,
+ // you also need to update
+ // TextEventDispatcher::DispatchKeyboardEventInternal().
+ if (aEvent.mMessage == eKeyPress) {
+ // If current input context is editable, the edit commands are initialized
+ // by TextEventDispatcher::DispatchKeyboardEventInternal(). Otherwise,
+ // we need to do it here (they are not necessary for the parent process,
+ // therefore, we need to do it here for saving the runtime cost).
+ if (!aEvent.AreAllEditCommandsInitialized()) {
+ // XXX Is it good thing that the keypress event will be handled in an
+ // editor even though the user pressed the key combination before the
+ // focus change has not been completed in the parent process yet or
+ // focus change will happen? If no, we can stop doing this.
+ Maybe<WritingMode> writingMode;
+ if (aEvent.mWidget) {
+ if (RefPtr<widget::TextEventDispatcher> dispatcher =
+ aEvent.mWidget->GetTextEventDispatcher()) {
+ writingMode = dispatcher->MaybeQueryWritingModeAtSelection();
+ }
+ }
+ aEvent.InitAllEditCommands(writingMode);
+ }
+ } else {
+ aEvent.PreventNativeKeyBindings();
+ }
+ SentKeyEventData sendKeyEventData{
+ aEvent.mKeyCode, aEvent.mCharCode, aEvent.mPseudoCharCode,
+ aEvent.mKeyNameIndex, aEvent.mCodeNameIndex, aEvent.mModifiers,
+ nsID::GenerateUUID()};
+ const bool ok =
+ Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendRealKeyEvent(aEvent, sendKeyEventData.mUUID)
+ : PBrowserParent::SendNormalPriorityRealKeyEvent(
+ aEvent, sendKeyEventData.mUUID);
+
+ NS_WARNING_ASSERTION(ok, "PBrowserParent::SendRealKeyEvent() failed");
+ MOZ_ASSERT(!ok || aEvent.HasBeenPostedToRemoteProcess());
+ if (ok && aEvent.IsWaitingReplyFromRemoteProcess()) {
+ mWaitingReplyKeyboardEvents.AppendElement(sendKeyEventData);
+ }
+}
+
+void BrowserParent::SendRealTouchEvent(WidgetTouchEvent& aEvent) {
+ if (mIsDestroyed || !mIsReadyToHandleInputEvents) {
+ return;
+ }
+
+ // PresShell::HandleEventInternal adds touches on touch end/cancel. This
+ // confuses remote content and the panning and zooming logic into thinking
+ // that the added touches are part of the touchend/cancel, when actually
+ // they're not.
+ if (aEvent.mMessage == eTouchEnd || aEvent.mMessage == eTouchCancel) {
+ aEvent.mTouches.RemoveElementsBy(
+ [](const auto& touch) { return !touch->mChanged; });
+ }
+
+ APZData apzData;
+ ApzAwareEventRoutingToChild(&apzData.guid, &apzData.blockId,
+ &apzData.apzResponse);
+
+ if (mIsDestroyed) {
+ return;
+ }
+
+ for (uint32_t i = 0; i < aEvent.mTouches.Length(); i++) {
+ aEvent.mTouches[i]->mRefPoint =
+ TransformParentToChild(aEvent.mTouches[i]->mRefPoint);
+ }
+
+ static uint32_t sConsecutiveTouchMoveCount = 0;
+ if (aEvent.mMessage == eTouchMove) {
+ ++sConsecutiveTouchMoveCount;
+ SendRealTouchMoveEvent(aEvent, apzData, sConsecutiveTouchMoveCount);
+ return;
+ }
+
+ sConsecutiveTouchMoveCount = 0;
+ DebugOnly<bool> ret =
+ Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendRealTouchEvent(
+ aEvent, apzData.guid, apzData.blockId, apzData.apzResponse)
+ : PBrowserParent::SendNormalPriorityRealTouchEvent(
+ aEvent, apzData.guid, apzData.blockId, apzData.apzResponse);
+
+ NS_WARNING_ASSERTION(ret, "PBrowserParent::SendRealTouchEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+}
+
+void BrowserParent::SendRealTouchMoveEvent(
+ WidgetTouchEvent& aEvent, APZData& aAPZData,
+ uint32_t aConsecutiveTouchMoveCount) {
+ // Touchmove handling is complicated, since IPC compression should be used
+ // only when there are consecutive touch objects for the same touch on the
+ // same BrowserParent. IPC compression can be disabled by switching to
+ // different IPC message.
+ static bool sIPCMessageType1 = true;
+ static TabId sLastTargetBrowserParent(0);
+ static Maybe<APZData> sPreviousAPZData;
+ // Artificially limit max touch points to 10. That should be in practise
+ // more than enough.
+ const uint32_t kMaxTouchMoveIdentifiers = 10;
+ static Maybe<int32_t> sLastTouchMoveIdentifiers[kMaxTouchMoveIdentifiers];
+
+ // Returns true if aIdentifiers contains all the touches in
+ // sLastTouchMoveIdentifiers.
+ auto LastTouchMoveIdentifiersContainedIn =
+ [&](const nsTArray<int32_t>& aIdentifiers) -> bool {
+ for (Maybe<int32_t>& entry : sLastTouchMoveIdentifiers) {
+ if (entry.isSome() && !aIdentifiers.Contains(entry.value())) {
+ return false;
+ }
+ }
+ return true;
+ };
+
+ // Cache touch identifiers in sLastTouchMoveIdentifiers array to be used
+ // when checking whether compression can be done for the next touchmove.
+ auto SetLastTouchMoveIdentifiers =
+ [&](const nsTArray<int32_t>& aIdentifiers) {
+ for (Maybe<int32_t>& entry : sLastTouchMoveIdentifiers) {
+ entry.reset();
+ }
+
+ MOZ_ASSERT(aIdentifiers.Length() <= kMaxTouchMoveIdentifiers);
+ for (uint32_t j = 0; j < aIdentifiers.Length(); ++j) {
+ sLastTouchMoveIdentifiers[j].emplace(aIdentifiers[j]);
+ }
+ };
+
+ AutoTArray<int32_t, kMaxTouchMoveIdentifiers> changedTouches;
+ bool preventCompression = !StaticPrefs::dom_events_compress_touchmove() ||
+ // Ensure the very first touchmove isn't overridden
+ // by the second one, so that web pages can get
+ // accurate coordinates for the first touchmove.
+ aConsecutiveTouchMoveCount < 3 ||
+ sPreviousAPZData.isNothing() ||
+ sPreviousAPZData.value() != aAPZData ||
+ sLastTargetBrowserParent != GetTabId() ||
+ aEvent.mTouches.Length() > kMaxTouchMoveIdentifiers;
+
+ if (!preventCompression) {
+ for (RefPtr<Touch>& touch : aEvent.mTouches) {
+ if (touch->mChanged) {
+ changedTouches.AppendElement(touch->mIdentifier);
+ }
+ }
+
+ // Prevent compression if the new event has fewer or different touches
+ // than the old one.
+ preventCompression = !LastTouchMoveIdentifiersContainedIn(changedTouches);
+ }
+
+ if (preventCompression) {
+ sIPCMessageType1 = !sIPCMessageType1;
+ }
+
+ // Update the last touch move identifiers always, so that when the next
+ // event comes in, the new identifiers can be compared to the old ones.
+ // If the pref is disabled, this just does a quick small loop.
+ SetLastTouchMoveIdentifiers(changedTouches);
+ sPreviousAPZData.reset();
+ sPreviousAPZData.emplace(aAPZData);
+ sLastTargetBrowserParent = GetTabId();
+
+ DebugOnly<bool> ret = true;
+ if (sIPCMessageType1) {
+ ret =
+ Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendRealTouchMoveEvent(
+ aEvent, aAPZData.guid, aAPZData.blockId, aAPZData.apzResponse)
+ : PBrowserParent::SendNormalPriorityRealTouchMoveEvent(
+ aEvent, aAPZData.guid, aAPZData.blockId,
+ aAPZData.apzResponse);
+ } else {
+ ret =
+ Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendRealTouchMoveEvent2(
+ aEvent, aAPZData.guid, aAPZData.blockId, aAPZData.apzResponse)
+ : PBrowserParent::SendNormalPriorityRealTouchMoveEvent2(
+ aEvent, aAPZData.guid, aAPZData.blockId,
+ aAPZData.apzResponse);
+ }
+
+ NS_WARNING_ASSERTION(ret, "PBrowserParent::SendRealTouchMoveEvent() failed");
+ MOZ_ASSERT(!ret || aEvent.HasBeenPostedToRemoteProcess());
+}
+
+bool BrowserParent::SendHandleTap(TapType aType,
+ const LayoutDevicePoint& aPoint,
+ Modifiers aModifiers,
+ const ScrollableLayerGuid& aGuid,
+ uint64_t aInputBlockId) {
+ if (mIsDestroyed || !mIsReadyToHandleInputEvents) {
+ return false;
+ }
+ if ((aType == TapType::eSingleTap || aType == TapType::eSecondTap)) {
+ if (RefPtr<nsFocusManager> fm = nsFocusManager::GetFocusManager()) {
+ if (RefPtr<nsFrameLoader> frameLoader = GetFrameLoader()) {
+ if (RefPtr<Element> element = frameLoader->GetOwnerContent()) {
+ fm->SetFocus(element, nsIFocusManager::FLAG_BYMOUSE |
+ nsIFocusManager::FLAG_BYTOUCH |
+ nsIFocusManager::FLAG_NOSCROLL);
+ }
+ }
+ }
+ }
+ return Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendHandleTap(aType,
+ TransformParentToChild(aPoint),
+ aModifiers, aGuid, aInputBlockId)
+ : PBrowserParent::SendNormalPriorityHandleTap(
+ aType, TransformParentToChild(aPoint), aModifiers, aGuid,
+ aInputBlockId);
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSyncMessage(
+ const nsString& aMessage, const ClonedMessageData& aData,
+ nsTArray<StructuredCloneData>* aRetVal) {
+ AUTO_PROFILER_LABEL_DYNAMIC_LOSSY_NSSTRING("BrowserParent::RecvSyncMessage",
+ OTHER, aMessage);
+ MMPrinter::Print("BrowserParent::RecvSyncMessage", aMessage, aData);
+
+ StructuredCloneData data;
+ ipc::UnpackClonedMessageData(aData, data);
+
+ if (!ReceiveMessage(aMessage, true, &data, aRetVal)) {
+ return IPC_FAIL_NO_REASON(this);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvAsyncMessage(
+ const nsString& aMessage, const ClonedMessageData& aData) {
+ AUTO_PROFILER_LABEL_DYNAMIC_LOSSY_NSSTRING("BrowserParent::RecvAsyncMessage",
+ OTHER, aMessage);
+ MMPrinter::Print("BrowserParent::RecvAsyncMessage", aMessage, aData);
+
+ StructuredCloneData data;
+ ipc::UnpackClonedMessageData(aData, data);
+
+ if (!ReceiveMessage(aMessage, false, &data, nullptr)) {
+ return IPC_FAIL_NO_REASON(this);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSetCursor(
+ const nsCursor& aCursor, const bool& aHasCustomCursor,
+ Maybe<BigBuffer>&& aCursorData, const uint32_t& aWidth,
+ const uint32_t& aHeight, const float& aResolutionX,
+ const float& aResolutionY, const uint32_t& aStride,
+ const gfx::SurfaceFormat& aFormat, const uint32_t& aHotspotX,
+ const uint32_t& aHotspotY, const bool& aForce) {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ if (aForce) {
+ widget->ClearCachedCursor();
+ }
+
+ nsCOMPtr<imgIContainer> cursorImage;
+ if (aHasCustomCursor) {
+ const bool cursorDataValid = [&] {
+ if (!aCursorData) {
+ return false;
+ }
+ auto expectedSize = CheckedInt<uint32_t>(aHeight) * aStride;
+ if (!expectedSize.isValid() ||
+ expectedSize.value() != aCursorData->Size()) {
+ return false;
+ }
+ auto minStride =
+ CheckedInt<uint32_t>(aWidth) * gfx::BytesPerPixel(aFormat);
+ if (!minStride.isValid() || aStride < minStride.value()) {
+ return false;
+ }
+ return true;
+ }();
+ if (!cursorDataValid) {
+ return IPC_FAIL(this, "Invalid custom cursor data");
+ }
+ const gfx::IntSize size(aWidth, aHeight);
+ RefPtr<gfx::DataSourceSurface> customCursor =
+ gfx::CreateDataSourceSurfaceFromData(size, aFormat, aCursorData->Data(),
+ aStride);
+
+ RefPtr<gfxDrawable> drawable = new gfxSurfaceDrawable(customCursor, size);
+ cursorImage = image::ImageOps::CreateFromDrawable(drawable);
+ }
+
+ mCursor = nsIWidget::Cursor{aCursor,
+ std::move(cursorImage),
+ aHotspotX,
+ aHotspotY,
+ {aResolutionX, aResolutionY}};
+ if (!mRemoteTargetSetsCursor) {
+ return IPC_OK();
+ }
+
+ widget->SetCursor(mCursor);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSetLinkStatus(
+ const nsString& aStatus) {
+ nsCOMPtr<nsIXULBrowserWindow> xulBrowserWindow = GetXULBrowserWindow();
+ if (!xulBrowserWindow) {
+ return IPC_OK();
+ }
+
+ xulBrowserWindow->SetOverLink(aStatus);
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvShowTooltip(
+ const uint32_t& aX, const uint32_t& aY, const nsString& aTooltip,
+ const nsString& aDirection) {
+ nsCOMPtr<nsIXULBrowserWindow> xulBrowserWindow = GetXULBrowserWindow();
+ if (!xulBrowserWindow) {
+ return IPC_OK();
+ }
+
+ // ShowTooltip will end up accessing XULElement properties in JS (specifically
+ // BoxObject). However, to get it to JS, we need to make sure we're a
+ // nsFrameLoaderOwner, which implies we're a XULFrameElement. We can then
+ // safely pass Element into JS.
+ RefPtr<nsFrameLoaderOwner> flo = do_QueryObject(mFrameElement);
+ if (!flo) return IPC_OK();
+
+ nsCOMPtr<Element> el = do_QueryInterface(flo);
+ if (!el) return IPC_OK();
+
+ if (NS_SUCCEEDED(
+ xulBrowserWindow->ShowTooltip(aX, aY, aTooltip, aDirection, el))) {
+ mShowingTooltip = true;
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvHideTooltip() {
+ mShowingTooltip = false;
+
+ nsCOMPtr<nsIXULBrowserWindow> xulBrowserWindow = GetXULBrowserWindow();
+ if (!xulBrowserWindow) {
+ return IPC_OK();
+ }
+
+ xulBrowserWindow->HideTooltip();
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNotifyIMEFocus(
+ const ContentCache& aContentCache, const IMENotification& aIMENotification,
+ NotifyIMEFocusResolver&& aResolve) {
+ if (mIsDestroyed) {
+ return IPC_OK();
+ }
+
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget) {
+ aResolve(IMENotificationRequests());
+ return IPC_OK();
+ }
+ if (NS_WARN_IF(!aContentCache.IsValid())) {
+ return IPC_FAIL(this, "Invalid content cache data");
+ }
+ mContentCache.AssignContent(aContentCache, widget, &aIMENotification);
+ IMEStateManager::NotifyIME(aIMENotification, widget, this);
+
+ IMENotificationRequests requests;
+ if (aIMENotification.mMessage == NOTIFY_IME_OF_FOCUS) {
+ requests = widget->IMENotificationRequestsRef();
+ }
+ aResolve(requests);
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNotifyIMETextChange(
+ const ContentCache& aContentCache,
+ const IMENotification& aIMENotification) {
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget || !IMEStateManager::DoesBrowserParentHaveIMEFocus(this)) {
+ return IPC_OK();
+ }
+ if (NS_WARN_IF(!aContentCache.IsValid())) {
+ return IPC_FAIL(this, "Invalid content cache data");
+ }
+ mContentCache.AssignContent(aContentCache, widget, &aIMENotification);
+ mContentCache.MaybeNotifyIME(widget, aIMENotification);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNotifyIMECompositionUpdate(
+ const ContentCache& aContentCache,
+ const IMENotification& aIMENotification) {
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget || !IMEStateManager::DoesBrowserParentHaveIMEFocus(this)) {
+ return IPC_OK();
+ }
+ if (NS_WARN_IF(!aContentCache.IsValid())) {
+ return IPC_FAIL(this, "Invalid content cache data");
+ }
+ mContentCache.AssignContent(aContentCache, widget, &aIMENotification);
+ mContentCache.MaybeNotifyIME(widget, aIMENotification);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNotifyIMESelection(
+ const ContentCache& aContentCache,
+ const IMENotification& aIMENotification) {
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget || !IMEStateManager::DoesBrowserParentHaveIMEFocus(this)) {
+ return IPC_OK();
+ }
+ if (NS_WARN_IF(!aContentCache.IsValid())) {
+ return IPC_FAIL(this, "Invalid content cache data");
+ }
+ mContentCache.AssignContent(aContentCache, widget, &aIMENotification);
+ mContentCache.MaybeNotifyIME(widget, aIMENotification);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvUpdateContentCache(
+ const ContentCache& aContentCache) {
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget || !IMEStateManager::DoesBrowserParentHaveIMEFocus(this)) {
+ return IPC_OK();
+ }
+ if (NS_WARN_IF(!aContentCache.IsValid())) {
+ return IPC_FAIL(this, "Invalid content cache data");
+ }
+ mContentCache.AssignContent(aContentCache, widget);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNotifyIMEMouseButtonEvent(
+ const IMENotification& aIMENotification, bool* aConsumedByIME) {
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget || !IMEStateManager::DoesBrowserParentHaveIMEFocus(this)) {
+ *aConsumedByIME = false;
+ return IPC_OK();
+ }
+ nsresult rv = IMEStateManager::NotifyIME(aIMENotification, widget, this);
+ *aConsumedByIME = rv == NS_SUCCESS_EVENT_CONSUMED;
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNotifyIMEPositionChange(
+ const ContentCache& aContentCache,
+ const IMENotification& aIMENotification) {
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget || !IMEStateManager::DoesBrowserParentHaveIMEFocus(this)) {
+ return IPC_OK();
+ }
+ if (NS_WARN_IF(!aContentCache.IsValid())) {
+ return IPC_FAIL(this, "Invalid content cache data");
+ }
+ mContentCache.AssignContent(aContentCache, widget, &aIMENotification);
+ mContentCache.MaybeNotifyIME(widget, aIMENotification);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvOnEventNeedingAckHandled(
+ const EventMessage& aMessage) {
+ // This is called when the child process receives WidgetCompositionEvent or
+ // WidgetSelectionEvent.
+ // FYI: Don't check if widget is nullptr here because it's more important to
+ // notify mContentCahce of this than handling something in it.
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+
+ // While calling OnEventNeedingAckHandled(), BrowserParent *might* be
+ // destroyed since it may send notifications to IME.
+ RefPtr<BrowserParent> kungFuDeathGrip(this);
+ mContentCache.OnEventNeedingAckHandled(widget, aMessage);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRequestFocus(
+ const bool& aCanRaise, const CallerType aCallerType) {
+ LOGBROWSERFOCUS(("RecvRequestFocus %p, aCanRaise: %d", this, aCanRaise));
+ if (BrowserBridgeParent* bridgeParent = GetBrowserBridgeParent()) {
+ mozilla::Unused << bridgeParent->SendRequestFocus(aCanRaise, aCallerType);
+ return IPC_OK();
+ }
+
+ if (!mFrameElement) {
+ return IPC_OK();
+ }
+
+ nsContentUtils::RequestFrameFocus(*mFrameElement, aCanRaise, aCallerType);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvWheelZoomChange(bool aIncrease) {
+ RefPtr<BrowsingContext> bc = GetBrowsingContext();
+ if (!bc) {
+ return IPC_OK();
+ }
+
+ bc->Canonical()->DispatchWheelZoomChange(aIncrease);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvEnableDisableCommands(
+ const MaybeDiscarded<BrowsingContext>& aContext, const nsString& aAction,
+ nsTArray<nsCString>&& aEnabledCommands,
+ nsTArray<nsCString>&& aDisabledCommands) {
+ if (aContext.IsNullOrDiscarded()) {
+ return IPC_OK();
+ }
+
+ nsCOMPtr<nsIBrowserController> browserController = do_QueryActor(
+ "Controllers", aContext.get_canonical()->GetCurrentWindowGlobal());
+ if (browserController) {
+ browserController->EnableDisableCommands(aAction, aEnabledCommands,
+ aDisabledCommands);
+ }
+
+ return IPC_OK();
+}
+
+LayoutDeviceIntPoint BrowserParent::TransformPoint(
+ const LayoutDeviceIntPoint& aPoint,
+ const LayoutDeviceToLayoutDeviceMatrix4x4& aMatrix) {
+ LayoutDevicePoint floatPoint(aPoint);
+ LayoutDevicePoint floatTransformed = TransformPoint(floatPoint, aMatrix);
+ // The next line loses precision if an out-of-process iframe
+ // has been scaled or rotated.
+ return RoundedToInt(floatTransformed);
+}
+
+LayoutDevicePoint BrowserParent::TransformPoint(
+ const LayoutDevicePoint& aPoint,
+ const LayoutDeviceToLayoutDeviceMatrix4x4& aMatrix) {
+ return aMatrix.TransformPoint(aPoint);
+}
+
+LayoutDeviceIntPoint BrowserParent::TransformParentToChild(
+ const LayoutDeviceIntPoint& aPoint) {
+ LayoutDeviceToLayoutDeviceMatrix4x4 matrix =
+ GetChildToParentConversionMatrix();
+ if (!matrix.Invert()) {
+ return LayoutDeviceIntPoint();
+ }
+ auto transformed = UntransformBy(matrix, aPoint);
+ if (!transformed) {
+ return LayoutDeviceIntPoint();
+ }
+ return transformed.ref();
+}
+
+LayoutDevicePoint BrowserParent::TransformParentToChild(
+ const LayoutDevicePoint& aPoint) {
+ LayoutDeviceToLayoutDeviceMatrix4x4 matrix =
+ GetChildToParentConversionMatrix();
+ if (!matrix.Invert()) {
+ return LayoutDevicePoint();
+ }
+ auto transformed = UntransformBy(matrix, aPoint);
+ if (!transformed) {
+ return LayoutDeviceIntPoint();
+ }
+ return transformed.ref();
+}
+
+LayoutDeviceIntPoint BrowserParent::TransformChildToParent(
+ const LayoutDeviceIntPoint& aPoint) {
+ return TransformPoint(aPoint, GetChildToParentConversionMatrix());
+}
+
+LayoutDevicePoint BrowserParent::TransformChildToParent(
+ const LayoutDevicePoint& aPoint) {
+ return TransformPoint(aPoint, GetChildToParentConversionMatrix());
+}
+
+LayoutDeviceIntRect BrowserParent::TransformChildToParent(
+ const LayoutDeviceIntRect& aRect) {
+ LayoutDeviceToLayoutDeviceMatrix4x4 matrix =
+ GetChildToParentConversionMatrix();
+ LayoutDeviceRect floatRect(aRect);
+ // The outcome is not ideal if an out-of-process iframe has been rotated
+ LayoutDeviceRect floatTransformed = matrix.TransformBounds(floatRect);
+ // The next line loses precision if an out-of-process iframe
+ // has been scaled or rotated.
+ return RoundedToInt(floatTransformed);
+}
+
+LayoutDeviceToLayoutDeviceMatrix4x4
+BrowserParent::GetChildToParentConversionMatrix() {
+ if (mChildToParentConversionMatrix) {
+ return *mChildToParentConversionMatrix;
+ }
+ LayoutDevicePoint offset(-GetChildProcessOffset());
+ return LayoutDeviceToLayoutDeviceMatrix4x4::Translation(offset);
+}
+
+void BrowserParent::SetChildToParentConversionMatrix(
+ const Maybe<LayoutDeviceToLayoutDeviceMatrix4x4>& aMatrix,
+ const ScreenRect& aRemoteDocumentRect) {
+ if (mChildToParentConversionMatrix == aMatrix &&
+ mRemoteDocumentRect.isSome() &&
+ mRemoteDocumentRect.value() == aRemoteDocumentRect) {
+ return;
+ }
+
+ mChildToParentConversionMatrix = aMatrix;
+ mRemoteDocumentRect = Some(aRemoteDocumentRect);
+ if (mIsDestroyed) {
+ return;
+ }
+ mozilla::Unused << SendChildToParentMatrix(ToUnknownMatrix(aMatrix),
+ aRemoteDocumentRect);
+}
+
+LayoutDeviceIntPoint BrowserParent::GetChildProcessOffset() {
+ // The "toplevel widget" in child processes is always at position
+ // 0,0. Map the event coordinates to match that.
+
+ LayoutDeviceIntPoint offset(0, 0);
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
+ if (!frameLoader) {
+ return offset;
+ }
+ nsIFrame* targetFrame = frameLoader->GetPrimaryFrameOfOwningContent();
+ if (!targetFrame) {
+ return offset;
+ }
+
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return offset;
+ }
+
+ nsPresContext* presContext = targetFrame->PresContext();
+ nsIFrame* rootFrame = presContext->PresShell()->GetRootFrame();
+ nsView* rootView = rootFrame ? rootFrame->GetView() : nullptr;
+ if (!rootView) {
+ return offset;
+ }
+
+ // Note that we don't want to take into account transforms here:
+#if 0
+ nsPoint pt(0, 0);
+ nsLayoutUtils::TransformPoint(targetFrame, rootFrame, pt);
+#endif
+ // In practice, when transforms are applied to this frameLoader, we currently
+ // get the wrong results whether we take transforms into account here or not.
+ // But applying transforms here gives us the wrong results in all
+ // circumstances when transforms are applied, unless they're purely
+ // translational. It also gives us the wrong results whenever CSS transitions
+ // are used to apply transforms, since the offeets aren't updated as the
+ // transition is animated.
+ //
+ // What we actually need to do is apply the transforms to the coordinates of
+ // any events we send to the child, and reverse them for any screen
+ // coordinates that we retrieve from the child.
+
+ // TODO: Once we take into account transforms here, set viewportType
+ // correctly. For now we use Visual as this means we don't apply
+ // the layout-to-visual transform in TranslateViewToWidget().
+ ViewportType viewportType = ViewportType::Visual;
+
+ nsPoint pt = targetFrame->GetOffsetTo(rootFrame);
+ return -nsLayoutUtils::TranslateViewToWidget(presContext, rootView, pt,
+ viewportType, widget);
+}
+
+LayoutDeviceIntPoint BrowserParent::GetClientOffset() {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ nsCOMPtr<nsIWidget> docWidget = GetDocWidget();
+
+ if (widget == docWidget) {
+ return widget->GetClientOffset();
+ }
+
+ return (docWidget->GetClientOffset() +
+ nsLayoutUtils::WidgetToWidgetOffset(widget, docWidget));
+}
+
+void BrowserParent::StopIMEStateManagement() {
+ if (mIsDestroyed) {
+ return;
+ }
+ Unused << SendStopIMEStateManagement();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvReplyKeyEvent(
+ const WidgetKeyboardEvent& aEvent, const nsID& aUUID) {
+ NS_ENSURE_TRUE(mFrameElement, IPC_OK());
+
+ // First, verify aEvent is what we've sent to a remote process.
+ Maybe<size_t> index = [&]() -> Maybe<size_t> {
+ for (const size_t i : IntegerRange(mWaitingReplyKeyboardEvents.Length())) {
+ const SentKeyEventData& data = mWaitingReplyKeyboardEvents[i];
+ if (data.mUUID.Equals(aUUID)) {
+ if (NS_WARN_IF(data.mKeyCode != aEvent.mKeyCode) ||
+ NS_WARN_IF(data.mCharCode != aEvent.mCharCode) ||
+ NS_WARN_IF(data.mPseudoCharCode != aEvent.mPseudoCharCode) ||
+ NS_WARN_IF(data.mKeyNameIndex != aEvent.mKeyNameIndex) ||
+ NS_WARN_IF(data.mCodeNameIndex != aEvent.mCodeNameIndex) ||
+ NS_WARN_IF(data.mModifiers != aEvent.mModifiers)) {
+ // Got different event data from what we stored before dispatching an
+ // event with the ID.
+ return Nothing();
+ }
+ return Some(i);
+ }
+ }
+ // No entry found.
+ return Nothing();
+ }();
+ if (MOZ_UNLIKELY(index.isNothing())) {
+ return IPC_FAIL(this, "Bogus reply keyboard event");
+ }
+ // Don't discard the older keyboard events because the order may be changed if
+ // the remote process has a event listener which takes too long time and while
+ // the freezing, user may switch the tab, or if the remote process sends
+ // synchronous XMLHttpRequest.
+ mWaitingReplyKeyboardEvents.RemoveElementAt(*index);
+
+ // If the event propagation was stopped by the child, it means that the event
+ // was ignored in the child. In the case, we should ignore it too because the
+ // focused web app didn't have a chance to prevent its default.
+ if (aEvent.PropagationStopped()) {
+ return IPC_OK();
+ }
+
+ WidgetKeyboardEvent localEvent(aEvent);
+ localEvent.MarkAsHandledInRemoteProcess();
+
+ // Here we convert the WidgetEvent that we received to an Event
+ // to be able to dispatch it to the <browser> element as the target element.
+ RefPtr<nsPresContext> presContext =
+ mFrameElement->OwnerDoc()->GetPresContext();
+ NS_ENSURE_TRUE(presContext, IPC_OK());
+
+ AutoHandlingUserInputStatePusher userInpStatePusher(localEvent.IsTrusted(),
+ &localEvent);
+
+ nsEventStatus status = nsEventStatus_eIgnore;
+
+ // Handle access key in this process before dispatching reply event because
+ // ESM handles it before dispatching the event to the DOM tree.
+ if (localEvent.mMessage == eKeyPress &&
+ (localEvent.ModifiersMatchWithAccessKey(AccessKeyType::eChrome) ||
+ localEvent.ModifiersMatchWithAccessKey(AccessKeyType::eContent))) {
+ RefPtr<EventStateManager> esm = presContext->EventStateManager();
+ AutoTArray<uint32_t, 10> accessCharCodes;
+ localEvent.GetAccessKeyCandidates(accessCharCodes);
+ if (esm->HandleAccessKey(&localEvent, presContext, accessCharCodes)) {
+ status = nsEventStatus_eConsumeNoDefault;
+ }
+ }
+
+ RefPtr<Element> frameElement = mFrameElement;
+ EventDispatcher::Dispatch(frameElement, presContext, &localEvent, nullptr,
+ &status);
+
+ if (!localEvent.DefaultPrevented() &&
+ !localEvent.mFlags.mIsSynthesizedForTests) {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->PostHandleKeyEvent(&localEvent);
+ localEvent.StopPropagation();
+ }
+ }
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvAccessKeyNotHandled(
+ const WidgetKeyboardEvent& aEvent) {
+ NS_ENSURE_TRUE(mFrameElement, IPC_OK());
+
+ // This is called only when this process had focus and HandleAccessKey
+ // message was posted to all remote process and each remote process didn't
+ // execute any content access keys.
+
+ if (MOZ_UNLIKELY(aEvent.mMessage != eKeyPress || !aEvent.IsTrusted())) {
+ return IPC_FAIL(this, "Called with unexpected event");
+ }
+
+ // If there is no requesting event, the event may have already been handled
+ // when it's returned from another remote process.
+ if (MOZ_UNLIKELY(!RequestingAccessKeyEventData::IsSet())) {
+ return IPC_OK();
+ }
+
+ // If the event does not match with the one which we requested a remote
+ // process to handle access key of (that means that we has already requested
+ // for another key press), we should ignore this call because user focuses
+ // to the last key press.
+ if (MOZ_UNLIKELY(!RequestingAccessKeyEventData::Equals(aEvent))) {
+ return IPC_OK();
+ }
+
+ RequestingAccessKeyEventData::Clear();
+
+ WidgetKeyboardEvent localEvent(aEvent);
+ localEvent.MarkAsHandledInRemoteProcess();
+ localEvent.mMessage = eAccessKeyNotFound;
+
+ // Here we convert the WidgetEvent that we received to an Event
+ // to be able to dispatch it to the <browser> element as the target element.
+ Document* doc = mFrameElement->OwnerDoc();
+ PresShell* presShell = doc->GetPresShell();
+ NS_ENSURE_TRUE(presShell, IPC_OK());
+
+ if (presShell->CanDispatchEvent()) {
+ RefPtr<nsPresContext> presContext = presShell->GetPresContext();
+ NS_ENSURE_TRUE(presContext, IPC_OK());
+
+ RefPtr<Element> frameElement = mFrameElement;
+ EventDispatcher::Dispatch(frameElement, presContext, &localEvent);
+ }
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRegisterProtocolHandler(
+ const nsString& aScheme, nsIURI* aHandlerURI, const nsString& aTitle,
+ nsIURI* aDocURI) {
+ nsCOMPtr<nsIWebProtocolHandlerRegistrar> registrar =
+ do_GetService(NS_WEBPROTOCOLHANDLERREGISTRAR_CONTRACTID);
+ if (registrar) {
+ registrar->RegisterProtocolHandler(aScheme, aHandlerURI, aTitle, aDocURI,
+ mFrameElement);
+ }
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvOnStateChange(
+ const WebProgressData& aWebProgressData, const RequestData& aRequestData,
+ const uint32_t aStateFlags, const nsresult aStatus,
+ const Maybe<WebProgressStateChangeData>& aStateChangeData) {
+ RefPtr<CanonicalBrowsingContext> browsingContext =
+ BrowsingContextForWebProgress(aWebProgressData);
+ if (!browsingContext) {
+ return IPC_OK();
+ }
+
+ nsCOMPtr<nsIRequest> request;
+ if (aRequestData.requestURI()) {
+ request = MakeAndAddRef<RemoteWebProgressRequest>(
+ aRequestData.requestURI(), aRequestData.originalRequestURI(),
+ aRequestData.matchedList());
+ }
+
+ if (aStateChangeData.isSome()) {
+ if (!browsingContext->IsTopContent()) {
+ return IPC_FAIL(
+ this,
+ "Unexpected WebProgressStateChangeData for non toplevel webProgress");
+ }
+
+ if (nsCOMPtr<nsIBrowser> browser = GetBrowser()) {
+ Unused << browser->SetIsNavigating(aStateChangeData->isNavigating());
+ Unused << browser->SetMayEnableCharacterEncodingMenu(
+ aStateChangeData->mayEnableCharacterEncodingMenu());
+ Unused << browser->UpdateForStateChange(aStateChangeData->charset(),
+ aStateChangeData->documentURI(),
+ aStateChangeData->contentType());
+ }
+ }
+
+ if (auto* listener = browsingContext->GetWebProgress()) {
+ listener->OnStateChange(listener, request, aStateFlags, aStatus);
+ }
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvOnProgressChange(
+ const int32_t aCurTotalProgress, const int32_t aMaxTotalProgress) {
+ // We only collect progress change notifications for the toplevel
+ // BrowserParent.
+ // FIXME: In the future, consider merging in progress change information from
+ // oop subframes.
+ if (!GetBrowsingContext()->IsTopContent() ||
+ !GetBrowsingContext()->GetWebProgress()) {
+ return IPC_OK();
+ }
+
+ GetBrowsingContext()->GetWebProgress()->OnProgressChange(
+ nullptr, nullptr, 0, 0, aCurTotalProgress, aMaxTotalProgress);
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvOnLocationChange(
+ const WebProgressData& aWebProgressData, const RequestData& aRequestData,
+ nsIURI* aLocation, const uint32_t aFlags, const bool aCanGoBack,
+ const bool aCanGoForward,
+ const Maybe<WebProgressLocationChangeData>& aLocationChangeData) {
+ RefPtr<CanonicalBrowsingContext> browsingContext =
+ BrowsingContextForWebProgress(aWebProgressData);
+ if (!browsingContext) {
+ return IPC_OK();
+ }
+
+ nsCOMPtr<nsIRequest> request;
+ if (aRequestData.requestURI()) {
+ request = MakeAndAddRef<RemoteWebProgressRequest>(
+ aRequestData.requestURI(), aRequestData.originalRequestURI(),
+ aRequestData.matchedList());
+ }
+
+ browsingContext->SetCurrentRemoteURI(aLocation);
+
+ nsCOMPtr<nsIBrowser> browser = GetBrowser();
+ if (!mozilla::SessionHistoryInParent() && browser) {
+ Unused << browser->UpdateWebNavigationForLocationChange(aCanGoBack,
+ aCanGoForward);
+ }
+
+ if (aLocationChangeData.isSome()) {
+ if (!browsingContext->IsTopContent()) {
+ return IPC_FAIL(this,
+ "Unexpected WebProgressLocationChangeData for non "
+ "toplevel webProgress");
+ }
+
+ if (browser) {
+ Unused << browser->SetIsNavigating(aLocationChangeData->isNavigating());
+ Unused << browser->UpdateForLocationChange(
+ aLocation, aLocationChangeData->charset(),
+ aLocationChangeData->mayEnableCharacterEncodingMenu(),
+ aLocationChangeData->documentURI(), aLocationChangeData->title(),
+ aLocationChangeData->contentPrincipal(),
+ aLocationChangeData->contentPartitionedPrincipal(),
+ aLocationChangeData->csp(), aLocationChangeData->referrerInfo(),
+ aLocationChangeData->isSyntheticDocument(),
+ aLocationChangeData->requestContextID().isSome(),
+ aLocationChangeData->requestContextID().valueOr(0),
+ aLocationChangeData->contentType());
+ }
+ }
+
+ if (auto* listener = browsingContext->GetWebProgress()) {
+ listener->OnLocationChange(listener, request, aLocation, aFlags);
+ }
+
+ // Since we've now changed Documents, notify the BrowsingContext that we've
+ // changed. Ideally we'd just let the BrowsingContext do this when it changes
+ // the current window global, but that happens before this and we have a lot
+ // of tests that depend on the specific ordering of messages.
+ if (browsingContext->IsTopContent() &&
+ !(aFlags & nsIWebProgressListener::LOCATION_CHANGE_SAME_DOCUMENT)) {
+ browsingContext->UpdateSecurityState();
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvOnStatusChange(
+ const nsString& aMessage) {
+ // We only collect status change notifications for the toplevel
+ // BrowserParent.
+ // FIXME: In the future, consider merging in status change information from
+ // oop subframes.
+ if (!GetBrowsingContext()->IsTopContent() ||
+ !GetBrowsingContext()->GetWebProgress()) {
+ return IPC_OK();
+ }
+
+ GetBrowsingContext()->GetWebProgress()->OnStatusChange(nullptr, nullptr,
+ NS_OK, aMessage.get());
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNavigationFinished() {
+ nsCOMPtr<nsIBrowser> browser =
+ mFrameElement ? mFrameElement->AsBrowser() : nullptr;
+
+ if (browser) {
+ browser->SetIsNavigating(false);
+ }
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvNotifyContentBlockingEvent(
+ const uint32_t& aEvent, const RequestData& aRequestData,
+ const bool aBlocked, const nsACString& aTrackingOrigin,
+ nsTArray<nsCString>&& aTrackingFullHashes,
+ const Maybe<
+ mozilla::ContentBlockingNotifier::StorageAccessPermissionGrantedReason>&
+ aReason) {
+ RefPtr<BrowsingContext> bc = GetBrowsingContext();
+
+ if (!bc || bc->IsDiscarded()) {
+ return IPC_OK();
+ }
+
+ // Get the top-level browsing context.
+ bc = bc->Top();
+ RefPtr<dom::WindowGlobalParent> wgp =
+ bc->Canonical()->GetCurrentWindowGlobal();
+
+ // The WindowGlobalParent would be null while running the test
+ // browser_339445.js. This is unexpected and we will address this in a
+ // following bug. For now, we first workaround this issue.
+ if (!wgp) {
+ return IPC_OK();
+ }
+
+ nsCOMPtr<nsIRequest> request = MakeAndAddRef<RemoteWebProgressRequest>(
+ aRequestData.requestURI(), aRequestData.originalRequestURI(),
+ aRequestData.matchedList());
+
+ wgp->NotifyContentBlockingEvent(aEvent, request, aBlocked, aTrackingOrigin,
+ aTrackingFullHashes, aReason);
+
+ return IPC_OK();
+}
+
+already_AddRefed<nsIBrowser> BrowserParent::GetBrowser() {
+ nsCOMPtr<nsIBrowser> browser;
+ RefPtr<Element> currentElement = mFrameElement;
+
+ // In Responsive Design Mode, mFrameElement will be the <iframe mozbrowser>,
+ // but we want the <xul:browser> that it is embedded in.
+ while (currentElement) {
+ browser = currentElement->AsBrowser();
+ if (browser) {
+ break;
+ }
+
+ BrowsingContext* browsingContext =
+ currentElement->OwnerDoc()->GetBrowsingContext();
+ currentElement =
+ browsingContext ? browsingContext->GetEmbedderElement() : nullptr;
+ }
+
+ return browser.forget();
+}
+
+already_AddRefed<CanonicalBrowsingContext>
+BrowserParent::BrowsingContextForWebProgress(
+ const WebProgressData& aWebProgressData) {
+ // Look up the BrowsingContext which this notification was fired for.
+ if (aWebProgressData.browsingContext().IsNullOrDiscarded()) {
+ NS_WARNING("WebProgress Ignored: BrowsingContext is null or discarded");
+ return nullptr;
+ }
+ RefPtr<CanonicalBrowsingContext> browsingContext =
+ aWebProgressData.browsingContext().get_canonical();
+
+ // Double-check that we actually manage this BrowsingContext, and are not
+ // receiving a malformed or out-of-date request. browsingContext should either
+ // be the toplevel one managed by this BrowserParent, or embedded within a
+ // WindowGlobalParent managed by this BrowserParent.
+ if (browsingContext != mBrowsingContext) {
+ WindowGlobalParent* embedder = browsingContext->GetParentWindowContext();
+ if (!embedder || embedder->GetBrowserParent() != this) {
+ NS_WARNING("WebProgress Ignored: wrong embedder process");
+ return nullptr;
+ }
+ }
+
+ // The current process for this BrowsingContext may have changed since the
+ // notification was fired. Don't fire events for it anymore, as ownership of
+ // the BrowsingContext has been moved elsewhere.
+ if (RefPtr<WindowGlobalParent> current =
+ browsingContext->GetCurrentWindowGlobal();
+ current && current->GetBrowserParent() != this) {
+ NS_WARNING("WebProgress Ignored: no longer current window global");
+ return nullptr;
+ }
+
+ if (RefPtr<BrowsingContextWebProgress> progress =
+ browsingContext->GetWebProgress()) {
+ progress->SetLoadType(aWebProgressData.loadType());
+ }
+
+ return browsingContext.forget();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvIntrinsicSizeOrRatioChanged(
+ const Maybe<IntrinsicSize>& aIntrinsicSize,
+ const Maybe<AspectRatio>& aIntrinsicRatio) {
+ BrowserBridgeParent* bridge = GetBrowserBridgeParent();
+ if (!bridge || !bridge->CanSend()) {
+ return IPC_OK();
+ }
+
+ Unused << bridge->SendIntrinsicSizeOrRatioChanged(aIntrinsicSize,
+ aIntrinsicRatio);
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvImageLoadComplete(
+ const nsresult& aResult) {
+ BrowserBridgeParent* bridge = GetBrowserBridgeParent();
+ if (!bridge || !bridge->CanSend()) {
+ return IPC_OK();
+ }
+
+ Unused << bridge->SendImageLoadComplete(aResult);
+
+ return IPC_OK();
+}
+
+bool BrowserParent::HandleQueryContentEvent(WidgetQueryContentEvent& aEvent) {
+ nsCOMPtr<nsIWidget> textInputHandlingWidget = GetTextInputHandlingWidget();
+ if (!textInputHandlingWidget) {
+ return true;
+ }
+ if (!mContentCache.HandleQueryContentEvent(aEvent, textInputHandlingWidget) ||
+ NS_WARN_IF(aEvent.Failed())) {
+ return true;
+ }
+ switch (aEvent.mMessage) {
+ case eQueryTextRect:
+ case eQueryCaretRect:
+ case eQueryEditorRect: {
+ nsCOMPtr<nsIWidget> browserWidget = GetWidget();
+ if (browserWidget != textInputHandlingWidget) {
+ aEvent.mReply->mRect += nsLayoutUtils::WidgetToWidgetOffset(
+ browserWidget, textInputHandlingWidget);
+ }
+ aEvent.mReply->mRect = TransformChildToParent(aEvent.mReply->mRect);
+ break;
+ }
+ default:
+ break;
+ }
+ return true;
+}
+
+bool BrowserParent::SendCompositionEvent(WidgetCompositionEvent& aEvent) {
+ if (mIsDestroyed) {
+ return false;
+ }
+
+ if (!mContentCache.OnCompositionEvent(aEvent)) {
+ return true;
+ }
+
+ bool ret = Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendCompositionEvent(aEvent)
+ : PBrowserParent::SendNormalPriorityCompositionEvent(aEvent);
+ if (NS_WARN_IF(!ret)) {
+ return false;
+ }
+ MOZ_ASSERT(aEvent.HasBeenPostedToRemoteProcess());
+ return true;
+}
+
+bool BrowserParent::SendSelectionEvent(WidgetSelectionEvent& aEvent) {
+ if (mIsDestroyed) {
+ return false;
+ }
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return true;
+ }
+ mContentCache.OnSelectionEvent(aEvent);
+ bool ret = Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendSelectionEvent(aEvent)
+ : PBrowserParent::SendNormalPrioritySelectionEvent(aEvent);
+ if (NS_WARN_IF(!ret)) {
+ return false;
+ }
+ MOZ_ASSERT(aEvent.HasBeenPostedToRemoteProcess());
+ aEvent.mSucceeded = true;
+ return true;
+}
+
+bool BrowserParent::SendInsertText(const nsString& aStringToInsert) {
+ if (mIsDestroyed) {
+ return false;
+ }
+ return Manager()->IsInputPriorityEventEnabled()
+ ? PBrowserParent::SendInsertText(aStringToInsert)
+ : PBrowserParent::SendNormalPriorityInsertText(aStringToInsert);
+}
+
+bool BrowserParent::SendPasteTransferable(
+ IPCTransferableData&& aTransferableData, const bool& aIsPrivateData,
+ nsIPrincipal* aRequestingPrincipal,
+ const nsContentPolicyType& aContentPolicyType) {
+ return PBrowserParent::SendPasteTransferable(
+ std::move(aTransferableData), aIsPrivateData, aRequestingPrincipal,
+ aContentPolicyType);
+}
+
+/* static */
+void BrowserParent::SetTopLevelWebFocus(BrowserParent* aBrowserParent) {
+ BrowserParent* old = GetFocused();
+ if (aBrowserParent && !aBrowserParent->GetBrowserBridgeParent()) {
+ // top-level Web content
+ sTopLevelWebFocus = aBrowserParent;
+ BrowserParent* bp = UpdateFocus();
+ if (old != bp) {
+ LOGBROWSERFOCUS(
+ ("SetTopLevelWebFocus updated focus; old: %p, new: %p", old, bp));
+ IMEStateManager::OnFocusMovedBetweenBrowsers(old, bp);
+ }
+ }
+}
+
+/* static */
+void BrowserParent::UnsetTopLevelWebFocus(BrowserParent* aBrowserParent) {
+ BrowserParent* old = GetFocused();
+ if (sTopLevelWebFocus == aBrowserParent) {
+ // top-level Web content
+ sTopLevelWebFocus = nullptr;
+ sFocus = nullptr;
+ if (old) {
+ LOGBROWSERFOCUS(
+ ("UnsetTopLevelWebFocus moved focus to chrome; old: %p", old));
+ IMEStateManager::OnFocusMovedBetweenBrowsers(old, nullptr);
+ }
+ }
+}
+
+/* static */
+void BrowserParent::UpdateFocusFromBrowsingContext() {
+ BrowserParent* old = GetFocused();
+ BrowserParent* bp = UpdateFocus();
+ if (old != bp) {
+ LOGBROWSERFOCUS(
+ ("UpdateFocusFromBrowsingContext updated focus; old: %p, new: %p", old,
+ bp));
+ IMEStateManager::OnFocusMovedBetweenBrowsers(old, bp);
+ }
+}
+
+/* static */
+BrowserParent* BrowserParent::UpdateFocus() {
+ if (!sTopLevelWebFocus) {
+ sFocus = nullptr;
+ return nullptr;
+ }
+ nsFocusManager* fm = nsFocusManager::GetFocusManager();
+ if (fm) {
+ BrowsingContext* bc = fm->GetFocusedBrowsingContextInChrome();
+ if (bc) {
+ BrowsingContext* top = bc->Top();
+ MOZ_ASSERT(top, "Should always have a top BrowsingContext.");
+ CanonicalBrowsingContext* canonicalTop = top->Canonical();
+ MOZ_ASSERT(canonicalTop,
+ "Casting to canonical should always be possible in the parent "
+ "process (top case).");
+ WindowGlobalParent* globalTop = canonicalTop->GetCurrentWindowGlobal();
+ if (globalTop) {
+ RefPtr<BrowserParent> globalTopParent = globalTop->GetBrowserParent();
+ if (sTopLevelWebFocus == globalTopParent) {
+ CanonicalBrowsingContext* canonical = bc->Canonical();
+ MOZ_ASSERT(
+ canonical,
+ "Casting to canonical should always be possible in the parent "
+ "process.");
+ WindowGlobalParent* global = canonical->GetCurrentWindowGlobal();
+ if (global) {
+ RefPtr<BrowserParent> parent = global->GetBrowserParent();
+ sFocus = parent;
+ return sFocus;
+ }
+ LOGBROWSERFOCUS(
+ ("Focused BrowsingContext did not have WindowGlobalParent."));
+ }
+ } else {
+ LOGBROWSERFOCUS(
+ ("Top-level BrowsingContext did not have WindowGlobalParent."));
+ }
+ }
+ }
+ sFocus = sTopLevelWebFocus;
+ return sFocus;
+}
+
+/* static */
+void BrowserParent::UnsetTopLevelWebFocusAll() {
+ if (sTopLevelWebFocus) {
+ UnsetTopLevelWebFocus(sTopLevelWebFocus);
+ }
+}
+
+/* static */
+void BrowserParent::UnsetLastMouseRemoteTarget(BrowserParent* aBrowserParent) {
+ if (sLastMouseRemoteTarget == aBrowserParent) {
+ sLastMouseRemoteTarget = nullptr;
+ }
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRequestIMEToCommitComposition(
+ const bool& aCancel, bool* aIsCommitted, nsString* aCommittedString) {
+ nsCOMPtr<nsIWidget> widget = GetTextInputHandlingWidget();
+ if (!widget) {
+ *aIsCommitted = false;
+ return IPC_OK();
+ }
+
+ *aIsCommitted = mContentCache.RequestIMEToCommitComposition(
+ widget, aCancel, *aCommittedString);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvGetInputContext(
+ widget::IMEState* aState) {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ *aState = widget::IMEState(IMEEnabled::Disabled,
+ IMEState::OPEN_STATE_NOT_SUPPORTED);
+ return IPC_OK();
+ }
+
+ *aState = widget->GetInputContext().mIMEState;
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSetInputContext(
+ const InputContext& aContext, const InputContextAction& aAction) {
+ IMEStateManager::SetInputContextForChildProcess(this, aContext, aAction);
+ return IPC_OK();
+}
+
+bool BrowserParent::ReceiveMessage(const nsString& aMessage, bool aSync,
+ StructuredCloneData* aData,
+ nsTArray<StructuredCloneData>* aRetVal) {
+ // If we're for an oop iframe, don't deliver messages to the wrong place.
+ if (mBrowserBridgeParent) {
+ return true;
+ }
+
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader(true);
+ if (frameLoader && frameLoader->GetFrameMessageManager()) {
+ RefPtr<nsFrameMessageManager> manager =
+ frameLoader->GetFrameMessageManager();
+
+ manager->ReceiveMessage(mFrameElement, frameLoader, aMessage, aSync, aData,
+ aRetVal, IgnoreErrors());
+ }
+ return true;
+}
+
+// nsIAuthPromptProvider
+
+// This method is largely copied from nsDocShell::GetAuthPrompt
+NS_IMETHODIMP
+BrowserParent::GetAuthPrompt(uint32_t aPromptReason, const nsIID& iid,
+ void** aResult) {
+ // we're either allowing auth, or it's a proxy request
+ nsresult rv;
+ nsCOMPtr<nsIPromptFactory> wwatch =
+ do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsPIDOMWindowOuter> window;
+ RefPtr<Element> frame = mFrameElement;
+ if (frame) window = frame->OwnerDoc()->GetWindow();
+
+ // Get an auth prompter for our window so that the parenting
+ // of the dialogs works as it should when using tabs.
+ nsCOMPtr<nsISupports> prompt;
+ rv = wwatch->GetPrompt(window, iid, getter_AddRefs(prompt));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsILoginManagerAuthPrompter> prompter = do_QueryInterface(prompt);
+ if (prompter) {
+ prompter->SetBrowser(mFrameElement);
+ }
+
+ *aResult = prompt.forget().take();
+ return NS_OK;
+}
+
+already_AddRefed<PColorPickerParent> BrowserParent::AllocPColorPickerParent(
+ const nsString& aTitle, const nsString& aInitialColor,
+ const nsTArray<nsString>& aDefaultColors) {
+ return MakeAndAddRef<ColorPickerParent>(aTitle, aInitialColor,
+ aDefaultColors);
+}
+
+already_AddRefed<nsFrameLoader> BrowserParent::GetFrameLoader(
+ bool aUseCachedFrameLoaderAfterDestroy) const {
+ if (mIsDestroyed && !aUseCachedFrameLoaderAfterDestroy) {
+ return nullptr;
+ }
+
+ if (mFrameLoader) {
+ RefPtr<nsFrameLoader> fl = mFrameLoader;
+ return fl.forget();
+ }
+ RefPtr<Element> frameElement(mFrameElement);
+ RefPtr<nsFrameLoaderOwner> frameLoaderOwner = do_QueryObject(frameElement);
+ return frameLoaderOwner ? frameLoaderOwner->GetFrameLoader() : nullptr;
+}
+
+void BrowserParent::TryCacheDPIAndScale() {
+ if (mDPI > 0) {
+ return;
+ }
+
+ const auto oldDefaultScale = mDefaultScale;
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ mDPI = widget ? widget->GetDPI() : nsIWidget::GetFallbackDPI();
+ mRounding = widget ? widget->RoundsWidgetCoordinatesTo() : 1;
+ mDefaultScale =
+ widget ? widget->GetDefaultScale() : nsIWidget::GetFallbackDefaultScale();
+
+ if (mDefaultScale != oldDefaultScale) {
+ // The change of the default scale factor will affect the child dimensions
+ // so we need to invalidate it.
+ mUpdatedDimensions = false;
+ }
+}
+
+void BrowserParent::ApzAwareEventRoutingToChild(
+ ScrollableLayerGuid* aOutTargetGuid, uint64_t* aOutInputBlockId,
+ nsEventStatus* aOutApzResponse) {
+ // Let the widget know that the event will be sent to the child process,
+ // which will (hopefully) send a confirmation notice back to APZ.
+ // Do this even if APZ is off since we need it for swipe gesture support on
+ // OS X without APZ.
+ InputAPZContext::SetRoutedToChildProcess();
+
+ if (AsyncPanZoomEnabled()) {
+ if (aOutTargetGuid) {
+ *aOutTargetGuid = InputAPZContext::GetTargetLayerGuid();
+
+ // There may be cases where the APZ hit-testing code came to a different
+ // conclusion than the main-thread hit-testing code as to where the event
+ // is destined. In such cases the layersId of the APZ result may not match
+ // the layersId of this RemoteLayerTreeOwner. In such cases the
+ // main-thread hit- testing code "wins" so we need to update the guid to
+ // reflect this.
+ if (mRemoteLayerTreeOwner.IsInitialized()) {
+ if (aOutTargetGuid->mLayersId != mRemoteLayerTreeOwner.GetLayersId()) {
+ *aOutTargetGuid =
+ ScrollableLayerGuid(mRemoteLayerTreeOwner.GetLayersId(), 0,
+ ScrollableLayerGuid::NULL_SCROLL_ID);
+ }
+ }
+ }
+ if (aOutInputBlockId) {
+ *aOutInputBlockId = InputAPZContext::GetInputBlockId();
+ }
+ if (aOutApzResponse) {
+ *aOutApzResponse = InputAPZContext::GetApzResponse();
+
+ // We can get here without there being an InputAPZContext on the stack
+ // if a non-native event synthesization function (such as
+ // nsIDOMWindowUtils.sendTouchEvent()) was used in the parent process to
+ // synthesize an event that's targeting a content process. Such events do
+ // not go through APZ. Without an InputAPZContext on the stack we pick up
+ // the default value "eSentinel" which cannot be sent over IPC, so replace
+ // it with "eIgnore" instead, which what APZ uses when it ignores an
+ // event. If a caller needs the ability to synthesize a event with a
+ // different APZ response, a native event synthesization function (such as
+ // sendNativeTouchPoint()) can be used.
+ if (*aOutApzResponse == nsEventStatus_eSentinel) {
+ *aOutApzResponse = nsEventStatus_eIgnore;
+ }
+ }
+ } else {
+ if (aOutInputBlockId) {
+ *aOutInputBlockId = 0;
+ }
+ if (aOutApzResponse) {
+ *aOutApzResponse = nsEventStatus_eIgnore;
+ }
+ }
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRespondStartSwipeEvent(
+ const uint64_t& aInputBlockId, const bool& aStartSwipe) {
+ if (nsCOMPtr<nsIWidget> widget = GetWidget()) {
+ widget->ReportSwipeStarted(aInputBlockId, aStartSwipe);
+ }
+ return IPC_OK();
+}
+
+bool BrowserParent::GetDocShellIsActive() {
+ return mBrowsingContext && mBrowsingContext->IsActive();
+}
+
+bool BrowserParent::GetHasPresented() { return mHasPresented; }
+
+bool BrowserParent::GetHasLayers() { return mHasLayers; }
+
+bool BrowserParent::GetRenderLayers() { return mRenderLayers; }
+
+void BrowserParent::SetRenderLayers(bool aEnabled) {
+ if (aEnabled == mRenderLayers) {
+ if (aEnabled && mHasLayers && mIsPreservingLayers) {
+ // RenderLayers might be called when we've been preserving layers,
+ // and already had layers uploaded. In that case, the MozLayerTreeReady
+ // event will not naturally arrive, which can confuse the front-end
+ // layer. So we fire the event here.
+ RefPtr<BrowserParent> self = this;
+ LayersObserverEpoch epoch = mLayerTreeEpoch;
+ NS_DispatchToMainThread(NS_NewRunnableFunction(
+ "dom::BrowserParent::RenderLayers", [self, epoch]() {
+ MOZ_ASSERT(NS_IsMainThread());
+ self->LayerTreeUpdate(epoch, true);
+ }));
+ }
+
+ return;
+ }
+
+ // Preserve layers means that attempts to stop rendering layers
+ // will be ignored.
+ if (!aEnabled && mIsPreservingLayers) {
+ return;
+ }
+
+ mRenderLayers = aEnabled;
+
+ SetRenderLayersInternal(aEnabled);
+}
+
+void BrowserParent::SetRenderLayersInternal(bool aEnabled) {
+ // Increment the epoch so that layer tree updates from previous
+ // RenderLayers requests are ignored.
+ mLayerTreeEpoch = mLayerTreeEpoch.Next();
+
+ Unused << SendRenderLayers(aEnabled, mLayerTreeEpoch);
+
+ // Ask the child to repaint/unload layers using the PHangMonitor
+ // channel/thread (which may be less congested).
+ if (aEnabled) {
+ Manager()->PaintTabWhileInterruptingJS(this, mLayerTreeEpoch);
+ } else {
+ Manager()->UnloadLayersWhileInterruptingJS(this, mLayerTreeEpoch);
+ }
+}
+
+bool BrowserParent::GetPriorityHint() { return mPriorityHint; }
+
+void BrowserParent::SetPriorityHint(bool aPriorityHint) {
+ mPriorityHint = aPriorityHint;
+ RecomputeProcessPriority();
+}
+
+void BrowserParent::RecomputeProcessPriority() {
+ auto* bc = GetBrowsingContext();
+ ProcessPriorityManager::BrowserPriorityChanged(
+ bc, bc->IsActive() || mPriorityHint);
+}
+
+void BrowserParent::PreserveLayers(bool aPreserveLayers) {
+ if (mIsPreservingLayers == aPreserveLayers) {
+ return;
+ }
+ mIsPreservingLayers = aPreserveLayers;
+ Unused << SendPreserveLayers(aPreserveLayers);
+}
+
+void BrowserParent::NotifyResolutionChanged() {
+ if (mIsDestroyed) {
+ return;
+ }
+ // TryCacheDPIAndScale()'s cache is keyed off of
+ // mDPI being greater than 0, so this invalidates it.
+ mDPI = -1;
+ TryCacheDPIAndScale();
+ // If mDPI was set to -1 to invalidate it and then TryCacheDPIAndScale
+ // fails to cache the values, then mDefaultScale.scale might be invalid.
+ // We don't want to send that value to content. Just send -1 for it too in
+ // that case.
+ Unused << SendUIResolutionChanged(mDPI, mRounding,
+ mDPI < 0 ? -1.0 : mDefaultScale.scale);
+}
+
+bool BrowserParent::CanCancelContentJS(
+ nsIRemoteTab::NavigationType aNavigationType, int32_t aNavigationIndex,
+ nsIURI* aNavigationURI) const {
+ // Pre-checking if we can cancel content js in the parent is only
+ // supported when session history in the parent is enabled.
+ if (!mozilla::SessionHistoryInParent()) {
+ // If session history in the parent isn't enabled, this check will
+ // be fully done in BrowserChild::CanCancelContentJS
+ return true;
+ }
+
+ nsCOMPtr<nsISHistory> history = mBrowsingContext->GetSessionHistory();
+
+ if (!history) {
+ // If there is no history we can't possibly know if it's ok to
+ // cancel content js.
+ return false;
+ }
+
+ int32_t current;
+ NS_ENSURE_SUCCESS(history->GetIndex(&current), false);
+
+ if (current == -1) {
+ // This tab has no history! Just return.
+ return false;
+ }
+
+ nsCOMPtr<nsISHEntry> entry;
+ NS_ENSURE_SUCCESS(history->GetEntryAtIndex(current, getter_AddRefs(entry)),
+ false);
+
+ nsCOMPtr<nsIURI> currentURI = entry->GetURI();
+ if (!currentURI->SchemeIs("http") && !currentURI->SchemeIs("https") &&
+ !currentURI->SchemeIs("file")) {
+ // Only cancel content JS for http(s) and file URIs. Other URIs are probably
+ // internal and we should just let them run to completion.
+ return false;
+ }
+
+ if (aNavigationType == nsIRemoteTab::NAVIGATE_BACK) {
+ aNavigationIndex = current - 1;
+ } else if (aNavigationType == nsIRemoteTab::NAVIGATE_FORWARD) {
+ aNavigationIndex = current + 1;
+ } else if (aNavigationType == nsIRemoteTab::NAVIGATE_URL) {
+ if (!aNavigationURI) {
+ return false;
+ }
+
+ if (aNavigationURI->SchemeIs("javascript")) {
+ // "javascript:" URIs don't (necessarily) trigger navigation to a
+ // different page, so don't allow the current page's JS to terminate.
+ return false;
+ }
+
+ // If navigating directly to a URL (e.g. via hitting Enter in the location
+ // bar), then we can cancel anytime the next URL is different from the
+ // current, *excluding* the ref ("#").
+ bool equals;
+ NS_ENSURE_SUCCESS(currentURI->EqualsExceptRef(aNavigationURI, &equals),
+ false);
+ return !equals;
+ }
+ // Note: aNavigationType may also be NAVIGATE_INDEX, in which case we don't
+ // need to do anything special.
+
+ int32_t delta = aNavigationIndex > current ? 1 : -1;
+ for (int32_t i = current + delta; i != aNavigationIndex + delta; i += delta) {
+ nsCOMPtr<nsISHEntry> nextEntry;
+ // If `i` happens to be negative, this call will fail (which is what we
+ // would want to happen).
+ NS_ENSURE_SUCCESS(history->GetEntryAtIndex(i, getter_AddRefs(nextEntry)),
+ false);
+
+ nsCOMPtr<nsISHEntry> laterEntry = delta == 1 ? nextEntry : entry;
+ nsCOMPtr<nsIURI> thisURI = entry->GetURI();
+ nsCOMPtr<nsIURI> nextURI = nextEntry->GetURI();
+
+ // If we changed origin and the load wasn't in a subframe, we know it was
+ // a full document load, so we can cancel the content JS safely.
+ if (!laterEntry->GetIsSubFrame()) {
+ nsAutoCString thisHost;
+ NS_ENSURE_SUCCESS(thisURI->GetPrePath(thisHost), false);
+
+ nsAutoCString nextHost;
+ NS_ENSURE_SUCCESS(nextURI->GetPrePath(nextHost), false);
+
+ if (!thisHost.Equals(nextHost)) {
+ return true;
+ }
+ }
+
+ entry = nextEntry;
+ }
+
+ return false;
+}
+
+void BrowserParent::SuppressDisplayport(bool aEnabled) {
+ if (IsDestroyed()) {
+ return;
+ }
+
+#ifdef DEBUG
+ if (aEnabled) {
+ mActiveSupressDisplayportCount++;
+ } else {
+ mActiveSupressDisplayportCount--;
+ }
+ MOZ_ASSERT(mActiveSupressDisplayportCount >= 0);
+#endif
+
+ Unused << SendSuppressDisplayport(aEnabled);
+}
+
+void BrowserParent::NavigateByKey(bool aForward, bool aForDocumentNavigation) {
+ Unused << SendNavigateByKey(aForward, aForDocumentNavigation);
+}
+
+void BrowserParent::LayerTreeUpdate(const LayersObserverEpoch& aEpoch,
+ bool aActive) {
+ // Ignore updates if we're an out-of-process iframe. For oop iframes, our
+ // |mFrameElement| is that of the top-level document, and so AsyncTabSwitcher
+ // will treat MozLayerTreeReady / MozLayerTreeCleared events as if they came
+ // from the top-level tab, which is wrong.
+ //
+ // XXX: Should we still be updating |mHasLayers|?
+ if (GetBrowserBridgeParent()) {
+ return;
+ }
+
+ // Ignore updates from old epochs. They might tell us that layers are
+ // available when we've already sent a message to clear them. We can't trust
+ // the update in that case since layers could disappear anytime after that.
+ if (aEpoch != mLayerTreeEpoch || mIsDestroyed) {
+ return;
+ }
+
+ RefPtr<Element> frameElement = mFrameElement;
+ if (!frameElement) {
+ NS_WARNING("Could not locate target for layer tree message.");
+ return;
+ }
+
+ mHasLayers = aActive;
+
+ RefPtr<Event> event = NS_NewDOMEvent(frameElement, nullptr, nullptr);
+ if (aActive) {
+ mHasPresented = true;
+ event->InitEvent(u"MozLayerTreeReady"_ns, true, false);
+ } else {
+ event->InitEvent(u"MozLayerTreeCleared"_ns, true, false);
+ }
+ event->SetTrusted(true);
+ event->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
+ frameElement->DispatchEvent(*event);
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvPaintWhileInterruptingJSNoOp(
+ const LayersObserverEpoch& aEpoch) {
+ // We sent a PaintWhileInterruptingJS message when layers were already
+ // visible. In this case, we should act as if an update occurred even though
+ // we already have the layers.
+ LayerTreeUpdate(aEpoch, true);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRemoteIsReadyToHandleInputEvents() {
+ // When enabling input event prioritization, input events may preempt other
+ // normal priority IPC messages. To prevent the input events preempt
+ // PBrowserConstructor, we use an IPC 'RemoteIsReadyToHandleInputEvents' to
+ // notify the parent that BrowserChild is created and ready to handle input
+ // events.
+ SetReadyToHandleInputEvents();
+ return IPC_OK();
+}
+
+PPaymentRequestParent* BrowserParent::AllocPPaymentRequestParent() {
+ RefPtr<PaymentRequestParent> actor = new PaymentRequestParent();
+ return actor.forget().take();
+}
+
+bool BrowserParent::DeallocPPaymentRequestParent(
+ PPaymentRequestParent* aActor) {
+ RefPtr<PaymentRequestParent> actor =
+ dont_AddRef(static_cast<PaymentRequestParent*>(aActor));
+ return true;
+}
+
+nsresult BrowserParent::HandleEvent(Event* aEvent) {
+ if (mIsDestroyed) {
+ return NS_OK;
+ }
+
+ nsAutoString eventType;
+ aEvent->GetType(eventType);
+ if (eventType.EqualsLiteral("MozUpdateWindowPos") ||
+ eventType.EqualsLiteral("fullscreenchange")) {
+ // Events that signify the window moving are used to update the position
+ // and notify the BrowserChild.
+ return UpdatePosition();
+ }
+ return NS_OK;
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvInvokeDragSession(
+ nsTArray<IPCTransferableData>&& aTransferables, const uint32_t& aAction,
+ Maybe<BigBuffer>&& aVisualDnDData, const uint32_t& aStride,
+ const gfx::SurfaceFormat& aFormat, const LayoutDeviceIntRect& aDragRect,
+ nsIPrincipal* aPrincipal, nsIContentSecurityPolicy* aCsp,
+ const CookieJarSettingsArgs& aCookieJarSettingsArgs,
+ const MaybeDiscarded<WindowContext>& aSourceWindowContext,
+ const MaybeDiscarded<WindowContext>& aSourceTopWindowContext) {
+ PresShell* presShell = mFrameElement->OwnerDoc()->GetPresShell();
+ if (!presShell) {
+ Unused << Manager()->SendEndDragSession(
+ true, true, LayoutDeviceIntPoint(), 0,
+ nsIDragService::DRAGDROP_ACTION_NONE);
+ // Continue sending input events with input priority when stopping the dnd
+ // session.
+ Manager()->SetInputPriorityEventEnabled(true);
+ return IPC_OK();
+ }
+
+ nsCOMPtr<nsICookieJarSettings> cookieJarSettings;
+ net::CookieJarSettings::Deserialize(aCookieJarSettingsArgs,
+ getter_AddRefs(cookieJarSettings));
+
+ RefPtr<RemoteDragStartData> dragStartData = new RemoteDragStartData(
+ this, std::move(aTransferables), aDragRect, aPrincipal, aCsp,
+ cookieJarSettings, aSourceWindowContext.GetMaybeDiscarded(),
+ aSourceTopWindowContext.GetMaybeDiscarded());
+
+ if (aVisualDnDData) {
+ const auto checkedSize = CheckedInt<size_t>(aDragRect.height) * aStride;
+ if (checkedSize.isValid() &&
+ aVisualDnDData->Size() >= checkedSize.value()) {
+ dragStartData->SetVisualization(gfx::CreateDataSourceSurfaceFromData(
+ gfx::IntSize(aDragRect.width, aDragRect.height), aFormat,
+ aVisualDnDData->Data(), aStride));
+ }
+ }
+
+ nsCOMPtr<nsIDragService> dragService =
+ do_GetService("@mozilla.org/widget/dragservice;1");
+ if (dragService) {
+ dragService->MaybeAddChildProcess(Manager());
+ }
+
+ presShell->GetPresContext()
+ ->EventStateManager()
+ ->BeginTrackingRemoteDragGesture(mFrameElement, dragStartData);
+
+ return IPC_OK();
+}
+
+bool BrowserParent::AsyncPanZoomEnabled() const {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ return widget && widget->AsyncPanZoomEnabled();
+}
+
+void BrowserParent::StartPersistence(
+ CanonicalBrowsingContext* aContext,
+ nsIWebBrowserPersistDocumentReceiver* aRecv, ErrorResult& aRv) {
+ auto* actor = new WebBrowserPersistDocumentParent();
+ actor->SetOnReady(aRecv);
+ bool ok = Manager()->SendPWebBrowserPersistDocumentConstructor(actor, this,
+ aContext);
+ if (!ok) {
+ aRv.Throw(NS_ERROR_FAILURE);
+ }
+ // (The actor will be destroyed on constructor failure.)
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvLookUpDictionary(
+ const nsString& aText, nsTArray<FontRange>&& aFontRangeArray,
+ const bool& aIsVertical, const LayoutDeviceIntPoint& aPoint) {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ widget->LookUpDictionary(aText, aFontRangeArray, aIsVertical,
+ TransformChildToParent(aPoint));
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvShowCanvasPermissionPrompt(
+ const nsCString& aOrigin, const bool& aHideDoorHanger) {
+ nsCOMPtr<nsIBrowser> browser =
+ mFrameElement ? mFrameElement->AsBrowser() : nullptr;
+ if (!browser) {
+ // If the tab is being closed, the browser may not be available.
+ // In this case we can ignore the request.
+ return IPC_OK();
+ }
+ nsCOMPtr<nsIObserverService> os = services::GetObserverService();
+ if (!os) {
+ return IPC_FAIL_NO_REASON(this);
+ }
+ nsresult rv = os->NotifyObservers(
+ browser,
+ aHideDoorHanger ? "canvas-permissions-prompt-hide-doorhanger"
+ : "canvas-permissions-prompt",
+ NS_ConvertUTF8toUTF16(aOrigin).get());
+ if (NS_FAILED(rv)) {
+ return IPC_FAIL_NO_REASON(this);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvVisitURI(
+ nsIURI* aURI, nsIURI* aLastVisitedURI, const uint32_t& aFlags,
+ const uint64_t& aBrowserId) {
+ if (!aURI) {
+ return IPC_FAIL_NO_REASON(this);
+ }
+ RefPtr<nsIWidget> widget = GetWidget();
+ if (NS_WARN_IF(!widget)) {
+ return IPC_OK();
+ }
+ nsCOMPtr<IHistory> history = components::History::Service();
+ if (history) {
+ Unused << history->VisitURI(widget, aURI, aLastVisitedURI, aFlags,
+ aBrowserId);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvQueryVisitedState(
+ nsTArray<RefPtr<nsIURI>>&& aURIs) {
+#ifdef MOZ_ANDROID_HISTORY
+ nsCOMPtr<IHistory> history = components::History::Service();
+ if (NS_WARN_IF(!history)) {
+ return IPC_OK();
+ }
+ RefPtr<nsIWidget> widget = GetWidget();
+ if (NS_WARN_IF(!widget)) {
+ return IPC_OK();
+ }
+
+ // FIXME(emilio): Is this check really needed?
+ for (nsIURI* uri : aURIs) {
+ if (!uri) {
+ return IPC_FAIL(this, "Received null URI");
+ }
+ }
+
+ auto* gvHistory = static_cast<GeckoViewHistory*>(history.get());
+ gvHistory->QueryVisitedState(widget, mManager, std::move(aURIs));
+ return IPC_OK();
+#else
+ return IPC_FAIL(this, "QueryVisitedState is Android-only");
+#endif
+}
+
+void BrowserParent::LiveResizeStarted() { SuppressDisplayport(true); }
+
+void BrowserParent::LiveResizeStopped() { SuppressDisplayport(false); }
+
+void BrowserParent::SetBrowserBridgeParent(BrowserBridgeParent* aBrowser) {
+ // We should either be clearing out our reference to a browser bridge, or not
+ // have either a browser bridge, browser host, or owner content yet.
+ MOZ_ASSERT(!aBrowser ||
+ (!mBrowserBridgeParent && !mBrowserHost && !mFrameElement));
+ mBrowserBridgeParent = aBrowser;
+}
+
+void BrowserParent::SetBrowserHost(BrowserHost* aBrowser) {
+ // We should either be clearing out our reference to a browser host, or not
+ // have either a browser bridge, browser host, or owner content yet.
+ MOZ_ASSERT(!aBrowser ||
+ (!mBrowserBridgeParent && !mBrowserHost && !mFrameElement));
+ mBrowserHost = aBrowser;
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvSetSystemFont(
+ const nsCString& aFontName) {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->SetSystemFont(aFontName);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvGetSystemFont(nsCString* aFontName) {
+ nsCOMPtr<nsIWidget> widget = GetWidget();
+ if (widget) {
+ widget->GetSystemFont(*aFontName);
+ }
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvMaybeFireEmbedderLoadEvents(
+ EmbedderElementEventType aFireEventAtEmbeddingElement) {
+ BrowserBridgeParent* bridge = GetBrowserBridgeParent();
+ if (!bridge) {
+ NS_WARNING("Received `load` event on unbridged BrowserParent!");
+ return IPC_OK();
+ }
+
+ Unused << bridge->SendMaybeFireEmbedderLoadEvents(
+ aFireEventAtEmbeddingElement);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvScrollRectIntoView(
+ const nsRect& aRect, const ScrollAxis& aVertical,
+ const ScrollAxis& aHorizontal, const ScrollFlags& aScrollFlags,
+ const int32_t& aAppUnitsPerDevPixel) {
+ BrowserBridgeParent* bridge = GetBrowserBridgeParent();
+ if (!bridge || !bridge->CanSend()) {
+ return IPC_OK();
+ }
+
+ Unused << bridge->SendScrollRectIntoView(aRect, aVertical, aHorizontal,
+ aScrollFlags, aAppUnitsPerDevPixel);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvIsWindowSupportingProtectedMedia(
+ const uint64_t& aOuterWindowID,
+ IsWindowSupportingProtectedMediaResolver&& aResolve) {
+#ifdef XP_WIN
+ bool isFxrWindow =
+ FxRWindowManager::GetInstance()->IsFxRWindow(aOuterWindowID);
+ aResolve(!isFxrWindow);
+#else
+# ifdef FUZZING_SNAPSHOT
+ return IPC_FAIL(this, "Should only be called on Windows");
+# endif
+ MOZ_CRASH("Should only be called on Windows");
+#endif
+
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvIsWindowSupportingWebVR(
+ const uint64_t& aOuterWindowID,
+ IsWindowSupportingWebVRResolver&& aResolve) {
+#ifdef XP_WIN
+ bool isFxrWindow =
+ FxRWindowManager::GetInstance()->IsFxRWindow(aOuterWindowID);
+ aResolve(!isFxrWindow);
+#else
+ aResolve(true);
+#endif
+
+ return IPC_OK();
+}
+
+static BrowserParent* GetTopLevelBrowserParent(BrowserParent* aBrowserParent) {
+ MOZ_ASSERT(aBrowserParent);
+ BrowserParent* parent = aBrowserParent;
+ while (BrowserBridgeParent* bridge = parent->GetBrowserBridgeParent()) {
+ parent = bridge->Manager();
+ }
+ return parent;
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRequestPointerLock(
+ RequestPointerLockResolver&& aResolve) {
+ nsCString error;
+ if (sTopLevelWebFocus != GetTopLevelBrowserParent(this)) {
+ error = "PointerLockDeniedNotFocused";
+ } else if (!PointerLockManager::SetLockedRemoteTarget(this)) {
+ error = "PointerLockDeniedInUse";
+ } else {
+ PointerEventHandler::ReleaseAllPointerCaptureRemoteTarget();
+ }
+ aResolve(error);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvReleasePointerLock() {
+ MOZ_ASSERT_IF(PointerLockManager::GetLockedRemoteTarget(),
+ PointerLockManager::GetLockedRemoteTarget() == this);
+ PointerLockManager::ReleaseLockedRemoteTarget(this);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvRequestPointerCapture(
+ const uint32_t& aPointerId, RequestPointerCaptureResolver&& aResolve) {
+ aResolve(
+ PointerEventHandler::SetPointerCaptureRemoteTarget(aPointerId, this));
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvReleasePointerCapture(
+ const uint32_t& aPointerId) {
+ PointerEventHandler::ReleasePointerCaptureRemoteTarget(aPointerId);
+ return IPC_OK();
+}
+
+mozilla::ipc::IPCResult BrowserParent::RecvShowDynamicToolbar() {
+#if defined(MOZ_WIDGET_ANDROID)
+ nsCOMPtr<nsIWidget> widget = GetTopLevelWidget();
+ if (!widget) {
+ return IPC_OK();
+ }
+
+ RefPtr<nsWindow> window = nsWindow::From(widget);
+ if (!window) {
+ return IPC_OK();
+ }
+
+ window->ShowDynamicToolbar();
+#endif // defined(MOZ_WIDGET_ANDROID)
+ return IPC_OK();
+}
+
+} // namespace dom
+} // namespace mozilla
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-11 01:28:29 +0000