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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/ipc/TabChild.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/ipc/TabChild.cpp')
-rw-r--r--dom/ipc/TabChild.cpp3371
1 files changed, 3371 insertions, 0 deletions
diff --git a/dom/ipc/TabChild.cpp b/dom/ipc/TabChild.cpp
new file mode 100644
index 000000000..eaf4a32ed
--- /dev/null
+++ b/dom/ipc/TabChild.cpp
@@ -0,0 +1,3371 @@
+/* -*- 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 "TabChild.h"
+
+#include "gfxPrefs.h"
+#ifdef ACCESSIBILITY
+#include "mozilla/a11y/DocAccessibleChild.h"
+#endif
+#include "Layers.h"
+#include "ContentChild.h"
+#include "TabParent.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/BrowserElementParent.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/EventListenerManager.h"
+#include "mozilla/dom/indexedDB/PIndexedDBPermissionRequestChild.h"
+#include "mozilla/plugins/PluginWidgetChild.h"
+#include "mozilla/IMEStateManager.h"
+#include "mozilla/ipc/DocumentRendererChild.h"
+#include "mozilla/ipc/URIUtils.h"
+#include "mozilla/layers/APZChild.h"
+#include "mozilla/layers/APZCCallbackHelper.h"
+#include "mozilla/layers/APZCTreeManager.h"
+#include "mozilla/layers/APZEventState.h"
+#include "mozilla/layers/ContentProcessController.h"
+#include "mozilla/layers/CompositorBridgeChild.h"
+#include "mozilla/layers/DoubleTapToZoom.h"
+#include "mozilla/layers/ImageBridgeChild.h"
+#include "mozilla/layers/InputAPZContext.h"
+#include "mozilla/layers/ShadowLayers.h"
+#include "mozilla/layout/RenderFrameChild.h"
+#include "mozilla/layout/RenderFrameParent.h"
+#include "mozilla/LookAndFeel.h"
+#include "mozilla/MouseEvents.h"
+#include "mozilla/Move.h"
+#include "mozilla/ProcessHangMonitor.h"
+#include "mozilla/ScopeExit.h"
+#include "mozilla/Services.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/TextEvents.h"
+#include "mozilla/TouchEvents.h"
+#include "mozilla/Unused.h"
+#include "mozIApplication.h"
+#include "nsContentUtils.h"
+#include "nsCSSFrameConstructor.h"
+#include "nsDocShell.h"
+#include "nsEmbedCID.h"
+#include "nsGlobalWindow.h"
+#include <algorithm>
+#ifdef MOZ_CRASHREPORTER
+#include "nsExceptionHandler.h"
+#endif
+#include "nsFilePickerProxy.h"
+#include "mozilla/dom/Element.h"
+#include "nsGlobalWindow.h"
+#include "nsIBaseWindow.h"
+#include "nsIBrowserDOMWindow.h"
+#include "nsIDocumentInlines.h"
+#include "nsIDocShellTreeOwner.h"
+#include "nsIDOMChromeWindow.h"
+#include "nsIDOMDocument.h"
+#include "nsIDOMEvent.h"
+#include "nsIDOMWindow.h"
+#include "nsIDOMWindowUtils.h"
+#include "nsFocusManager.h"
+#include "EventStateManager.h"
+#include "nsIDocShell.h"
+#include "nsIFrame.h"
+#include "nsIURI.h"
+#include "nsIURIFixup.h"
+#include "nsCDefaultURIFixup.h"
+#include "nsIWebBrowser.h"
+#include "nsIWebBrowserFocus.h"
+#include "nsIWebBrowserSetup.h"
+#include "nsIWebProgress.h"
+#include "nsIXULRuntime.h"
+#include "nsPIDOMWindow.h"
+#include "nsPIWindowRoot.h"
+#include "nsLayoutUtils.h"
+#include "nsPrintfCString.h"
+#include "nsThreadUtils.h"
+#include "nsViewManager.h"
+#include "nsWeakReference.h"
+#include "nsWindowWatcher.h"
+#include "PermissionMessageUtils.h"
+#include "PuppetWidget.h"
+#include "StructuredCloneData.h"
+#include "nsViewportInfo.h"
+#include "nsILoadContext.h"
+#include "ipc/nsGUIEventIPC.h"
+#include "mozilla/gfx/Matrix.h"
+#include "UnitTransforms.h"
+#include "ClientLayerManager.h"
+#include "LayersLogging.h"
+#include "nsDOMClassInfoID.h"
+#include "nsColorPickerProxy.h"
+#include "nsDatePickerProxy.h"
+#include "nsContentPermissionHelper.h"
+#include "nsPresShell.h"
+#include "nsIAppsService.h"
+#include "nsNetUtil.h"
+#include "nsIPermissionManager.h"
+#include "nsIURILoader.h"
+#include "nsIScriptError.h"
+#include "mozilla/EventForwards.h"
+#include "nsDeviceContext.h"
+#include "nsSandboxFlags.h"
+#include "FrameLayerBuilder.h"
+#include "VRManagerChild.h"
+#include "nsICommandParams.h"
+#include "nsISHistory.h"
+#include "nsQueryObject.h"
+#include "GroupedSHistory.h"
+#include "nsIHttpChannel.h"
+#include "mozilla/dom/DocGroup.h"
+
+#ifdef NS_PRINTING
+#include "nsIPrintSession.h"
+#include "nsIPrintSettings.h"
+#include "nsIPrintSettingsService.h"
+#include "nsIWebBrowserPrint.h"
+#endif
+
+#define BROWSER_ELEMENT_CHILD_SCRIPT \
+ NS_LITERAL_STRING("chrome://global/content/BrowserElementChild.js")
+
+#define TABC_LOG(...)
+// #define TABC_LOG(...) printf_stderr("TABC: " __VA_ARGS__)
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::dom::ipc;
+using namespace mozilla::dom::workers;
+using namespace mozilla::ipc;
+using namespace mozilla::layers;
+using namespace mozilla::layout;
+using namespace mozilla::docshell;
+using namespace mozilla::widget;
+using namespace mozilla::jsipc;
+using mozilla::layers::GeckoContentController;
+
+NS_IMPL_ISUPPORTS(ContentListener, nsIDOMEventListener)
+NS_IMPL_ISUPPORTS(TabChildSHistoryListener,
+ nsISHistoryListener,
+ nsIPartialSHistoryListener,
+ nsISupportsWeakReference)
+
+static const CSSSize kDefaultViewportSize(980, 480);
+
+static const char BEFORE_FIRST_PAINT[] = "before-first-paint";
+
+typedef nsDataHashtable<nsUint64HashKey, TabChild*> TabChildMap;
+static TabChildMap* sTabChildren;
+
+TabChildBase::TabChildBase()
+ : mTabChildGlobal(nullptr)
+{
+ mozilla::HoldJSObjects(this);
+}
+
+TabChildBase::~TabChildBase()
+{
+ mAnonymousGlobalScopes.Clear();
+ mozilla::DropJSObjects(this);
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(TabChildBase)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(TabChildBase)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mTabChildGlobal)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mAnonymousGlobalScopes)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mWebBrowserChrome)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(TabChildBase)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTabChildGlobal)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWebBrowserChrome)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(TabChildBase)
+ tmp->nsMessageManagerScriptExecutor::Trace(aCallbacks, aClosure);
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TabChildBase)
+ NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(TabChildBase)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(TabChildBase)
+
+already_AddRefed<nsIDocument>
+TabChildBase::GetDocument() const
+{
+ nsCOMPtr<nsIDOMDocument> domDoc;
+ WebNavigation()->GetDocument(getter_AddRefs(domDoc));
+ nsCOMPtr<nsIDocument> doc(do_QueryInterface(domDoc));
+ return doc.forget();
+}
+
+already_AddRefed<nsIPresShell>
+TabChildBase::GetPresShell() const
+{
+ nsCOMPtr<nsIPresShell> result;
+ if (nsCOMPtr<nsIDocument> doc = GetDocument()) {
+ result = doc->GetShell();
+ }
+ return result.forget();
+}
+
+void
+TabChildBase::DispatchMessageManagerMessage(const nsAString& aMessageName,
+ const nsAString& aJSONData)
+{
+ AutoSafeJSContext cx;
+ JS::Rooted<JS::Value> json(cx, JS::NullValue());
+ StructuredCloneData data;
+ if (JS_ParseJSON(cx,
+ static_cast<const char16_t*>(aJSONData.BeginReading()),
+ aJSONData.Length(),
+ &json)) {
+ ErrorResult rv;
+ data.Write(cx, json, rv);
+ if (NS_WARN_IF(rv.Failed())) {
+ rv.SuppressException();
+ return;
+ }
+ }
+
+ nsCOMPtr<nsIXPConnectJSObjectHolder> kungFuDeathGrip(GetGlobal());
+ // Let the BrowserElementScrolling helper (if it exists) for this
+ // content manipulate the frame state.
+ RefPtr<nsFrameMessageManager> mm =
+ static_cast<nsFrameMessageManager*>(mTabChildGlobal->mMessageManager.get());
+ mm->ReceiveMessage(static_cast<EventTarget*>(mTabChildGlobal), nullptr,
+ aMessageName, false, &data, nullptr, nullptr, nullptr);
+}
+
+bool
+TabChildBase::UpdateFrameHandler(const FrameMetrics& aFrameMetrics)
+{
+ MOZ_ASSERT(aFrameMetrics.GetScrollId() != FrameMetrics::NULL_SCROLL_ID);
+
+ if (aFrameMetrics.IsRootContent()) {
+ if (nsCOMPtr<nsIPresShell> shell = GetPresShell()) {
+ // Guard against stale updates (updates meant for a pres shell which
+ // has since been torn down and destroyed).
+ if (aFrameMetrics.GetPresShellId() == shell->GetPresShellId()) {
+ ProcessUpdateFrame(aFrameMetrics);
+ return true;
+ }
+ }
+ } else {
+ // aFrameMetrics.mIsRoot is false, so we are trying to update a subframe.
+ // This requires special handling.
+ FrameMetrics newSubFrameMetrics(aFrameMetrics);
+ APZCCallbackHelper::UpdateSubFrame(newSubFrameMetrics);
+ return true;
+ }
+ return true;
+}
+
+void
+TabChildBase::ProcessUpdateFrame(const FrameMetrics& aFrameMetrics)
+{
+ if (!mGlobal || !mTabChildGlobal) {
+ return;
+ }
+
+ FrameMetrics newMetrics = aFrameMetrics;
+ APZCCallbackHelper::UpdateRootFrame(newMetrics);
+}
+
+NS_IMETHODIMP
+ContentListener::HandleEvent(nsIDOMEvent* aEvent)
+{
+ RemoteDOMEvent remoteEvent;
+ remoteEvent.mEvent = do_QueryInterface(aEvent);
+ NS_ENSURE_STATE(remoteEvent.mEvent);
+ mTabChild->SendEvent(remoteEvent);
+ return NS_OK;
+}
+
+class TabChild::DelayedDeleteRunnable final
+ : public Runnable
+{
+ RefPtr<TabChild> mTabChild;
+
+public:
+ explicit DelayedDeleteRunnable(TabChild* aTabChild)
+ : mTabChild(aTabChild)
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(aTabChild);
+ }
+
+private:
+ ~DelayedDeleteRunnable()
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(!mTabChild);
+ }
+
+ NS_IMETHOD
+ Run() override
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(mTabChild);
+
+ // Check in case ActorDestroy was called after RecvDestroy message.
+ if (mTabChild->IPCOpen()) {
+ Unused << PBrowserChild::Send__delete__(mTabChild);
+ }
+
+ mTabChild = nullptr;
+ return NS_OK;
+ }
+};
+
+namespace {
+StaticRefPtr<TabChild> sPreallocatedTab;
+
+std::map<TabId, RefPtr<TabChild>>&
+NestedTabChildMap()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ static std::map<TabId, RefPtr<TabChild>> sNestedTabChildMap;
+ return sNestedTabChildMap;
+}
+} // namespace
+
+already_AddRefed<TabChild>
+TabChild::FindTabChild(const TabId& aTabId)
+{
+ auto iter = NestedTabChildMap().find(aTabId);
+ if (iter == NestedTabChildMap().end()) {
+ return nullptr;
+ }
+ RefPtr<TabChild> tabChild = iter->second;
+ return tabChild.forget();
+}
+
+static void
+PreloadSlowThingsPostFork(void* aUnused)
+{
+ nsCOMPtr<nsIObserverService> observerService =
+ mozilla::services::GetObserverService();
+ observerService->NotifyObservers(nullptr, "preload-postfork", nullptr);
+
+ MOZ_ASSERT(sPreallocatedTab);
+ // Initialize initial reflow of the PresShell has to happen after fork
+ // because about:blank content viewer is created in the above observer
+ // notification.
+ nsCOMPtr<nsIDocShell> docShell =
+ do_GetInterface(sPreallocatedTab->WebNavigation());
+ if (nsIPresShell* presShell = docShell->GetPresShell()) {
+ // Initialize and do an initial reflow of the about:blank
+ // PresShell to let it preload some things for us.
+ presShell->Initialize(0, 0);
+ nsIDocument* doc = presShell->GetDocument();
+ doc->FlushPendingNotifications(Flush_Layout);
+ // ... but after it's done, make sure it doesn't do any more
+ // work.
+ presShell->MakeZombie();
+ }
+
+}
+
+static bool sPreloaded = false;
+
+/*static*/ void
+TabChild::PreloadSlowThings()
+{
+ if (sPreloaded) {
+ // If we are alredy initialized in Nuwa, don't redo preloading.
+ return;
+ }
+ sPreloaded = true;
+
+ // Pass nullptr to aManager since at this point the TabChild is
+ // not connected to any manager. Any attempt to use the TabChild
+ // in IPC will crash.
+ RefPtr<TabChild> tab(new TabChild(nullptr,
+ TabId(0),
+ TabContext(), /* chromeFlags */ 0));
+ if (!NS_SUCCEEDED(tab->Init()) ||
+ !tab->InitTabChildGlobal(DONT_LOAD_SCRIPTS)) {
+ return;
+ }
+
+ // Just load and compile these scripts, but don't run them.
+ tab->TryCacheLoadAndCompileScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
+ // Load, compile, and run these scripts.
+ tab->RecvLoadRemoteScript(
+ NS_LITERAL_STRING("chrome://global/content/preload.js"),
+ true);
+
+ sPreallocatedTab = tab;
+ ClearOnShutdown(&sPreallocatedTab);
+
+ PreloadSlowThingsPostFork(nullptr);
+}
+
+/*static*/ already_AddRefed<TabChild>
+TabChild::Create(nsIContentChild* aManager,
+ const TabId& aTabId,
+ const TabContext &aContext,
+ uint32_t aChromeFlags)
+{
+ if (sPreallocatedTab &&
+ sPreallocatedTab->mChromeFlags == aChromeFlags &&
+ aContext.IsMozBrowserOrApp()) {
+
+ RefPtr<TabChild> child = sPreallocatedTab.get();
+ sPreallocatedTab = nullptr;
+
+ MOZ_ASSERT(!child->mTriedBrowserInit);
+
+ child->mManager = aManager;
+ child->SetTabId(aTabId);
+ child->SetTabContext(aContext);
+ child->NotifyTabContextUpdated(true);
+ return child.forget();
+ }
+
+ RefPtr<TabChild> iframe = new TabChild(aManager, aTabId,
+ aContext, aChromeFlags);
+ return NS_SUCCEEDED(iframe->Init()) ? iframe.forget() : nullptr;
+}
+
+TabChild::TabChild(nsIContentChild* aManager,
+ const TabId& aTabId,
+ const TabContext& aContext,
+ uint32_t aChromeFlags)
+ : TabContext(aContext)
+ , mRemoteFrame(nullptr)
+ , mManager(aManager)
+ , mChromeFlags(aChromeFlags)
+ , mActiveSuppressDisplayport(0)
+ , mLayersId(0)
+ , mDidFakeShow(false)
+ , mNotified(false)
+ , mTriedBrowserInit(false)
+ , mOrientation(eScreenOrientation_PortraitPrimary)
+ , mIgnoreKeyPressEvent(false)
+ , mHasValidInnerSize(false)
+ , mDestroyed(false)
+ , mUniqueId(aTabId)
+ , mDPI(0)
+ , mRounding(0)
+ , mDefaultScale(0)
+ , mIsTransparent(false)
+ , mIPCOpen(false)
+ , mParentIsActive(false)
+ , mDidSetRealShowInfo(false)
+ , mDidLoadURLInit(false)
+ , mIsFreshProcess(false)
+ , mLayerObserverEpoch(0)
+#if defined(XP_WIN) && defined(ACCESSIBILITY)
+ , mNativeWindowHandle(0)
+#endif
+{
+ // In the general case having the TabParent tell us if APZ is enabled or not
+ // doesn't really work because the TabParent itself may not have a reference
+ // to the owning widget during initialization. Instead we assume that this
+ // TabChild corresponds to a widget type that would have APZ enabled, and just
+ // check the other conditions necessary for enabling APZ.
+ mAsyncPanZoomEnabled = gfxPlatform::AsyncPanZoomEnabled();
+
+ nsWeakPtr weakPtrThis(do_GetWeakReference(static_cast<nsITabChild*>(this))); // for capture by the lambda
+ mSetAllowedTouchBehaviorCallback = [weakPtrThis](uint64_t aInputBlockId,
+ const nsTArray<TouchBehaviorFlags>& aFlags)
+ {
+ if (nsCOMPtr<nsITabChild> tabChild = do_QueryReferent(weakPtrThis)) {
+ static_cast<TabChild*>(tabChild.get())->SetAllowedTouchBehavior(aInputBlockId, aFlags);
+ }
+ };
+
+ // preloaded TabChild should not be added to child map
+ if (mUniqueId) {
+ MOZ_ASSERT(NestedTabChildMap().find(mUniqueId) == NestedTabChildMap().end());
+ NestedTabChildMap()[mUniqueId] = this;
+ }
+
+ nsCOMPtr<nsIObserverService> observerService =
+ mozilla::services::GetObserverService();
+
+ if (observerService) {
+ const nsAttrValue::EnumTable* table =
+ AudioChannelService::GetAudioChannelTable();
+
+ nsAutoCString topic;
+ for (uint32_t i = 0; table[i].tag; ++i) {
+ topic.Assign("audiochannel-activity-");
+ topic.Append(table[i].tag);
+
+ observerService->AddObserver(this, topic.get(), false);
+ }
+ }
+
+ for (uint32_t idx = 0; idx < NUMBER_OF_AUDIO_CHANNELS; idx++) {
+ mAudioChannelsActive.AppendElement(false);
+ }
+}
+
+NS_IMETHODIMP
+TabChild::Observe(nsISupports *aSubject,
+ const char *aTopic,
+ const char16_t *aData)
+{
+ if (!strcmp(aTopic, BEFORE_FIRST_PAINT)) {
+ if (AsyncPanZoomEnabled()) {
+ nsCOMPtr<nsIDocument> subject(do_QueryInterface(aSubject));
+ nsCOMPtr<nsIDocument> doc(GetDocument());
+
+ if (SameCOMIdentity(subject, doc)) {
+ nsCOMPtr<nsIPresShell> shell(doc->GetShell());
+ if (shell) {
+ shell->SetIsFirstPaint(true);
+ }
+
+ APZCCallbackHelper::InitializeRootDisplayport(shell);
+ }
+ }
+ }
+
+ const nsAttrValue::EnumTable* table =
+ AudioChannelService::GetAudioChannelTable();
+
+ nsAutoCString topic;
+ int16_t audioChannel = -1;
+ for (uint32_t i = 0; table[i].tag; ++i) {
+ topic.Assign("audiochannel-activity-");
+ topic.Append(table[i].tag);
+
+ if (topic.Equals(aTopic)) {
+ audioChannel = table[i].value;
+ break;
+ }
+ }
+
+ if (audioChannel != -1 && mIPCOpen) {
+ // If the subject is not a wrapper, it is sent by the TabParent and we
+ // should ignore it.
+ nsCOMPtr<nsISupportsPRUint64> wrapper = do_QueryInterface(aSubject);
+ if (!wrapper) {
+ return NS_OK;
+ }
+
+ // We must have a window in order to compare the windowID contained into the
+ // wrapper.
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+ if (!window) {
+ return NS_OK;
+ }
+
+ uint64_t windowID = 0;
+ nsresult rv = wrapper->GetData(&windowID);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ // In theory a tabChild should contain just 1 top window, but let's double
+ // check it comparing the windowID.
+ if (window->WindowID() != windowID) {
+ MOZ_LOG(AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
+ ("TabChild, Observe, different windowID, owner ID = %lld, "
+ "ID from wrapper = %lld", window->WindowID(), windowID));
+ return NS_OK;
+ }
+
+ nsAutoString activeStr(aData);
+ bool active = activeStr.EqualsLiteral("active");
+ if (active != mAudioChannelsActive[audioChannel]) {
+ mAudioChannelsActive[audioChannel] = active;
+ Unused << SendAudioChannelActivityNotification(audioChannel, active);
+ }
+ }
+
+ return NS_OK;
+}
+
+void
+TabChild::ContentReceivedInputBlock(const ScrollableLayerGuid& aGuid,
+ uint64_t aInputBlockId,
+ bool aPreventDefault) const
+{
+ if (mApzcTreeManager) {
+ mApzcTreeManager->ContentReceivedInputBlock(aInputBlockId, aPreventDefault);
+ }
+}
+
+void
+TabChild::SetTargetAPZC(uint64_t aInputBlockId,
+ const nsTArray<ScrollableLayerGuid>& aTargets) const
+{
+ if (mApzcTreeManager) {
+ mApzcTreeManager->SetTargetAPZC(aInputBlockId, aTargets);
+ }
+}
+
+void
+TabChild::SetAllowedTouchBehavior(uint64_t aInputBlockId,
+ const nsTArray<TouchBehaviorFlags>& aTargets) const
+{
+ if (mApzcTreeManager) {
+ mApzcTreeManager->SetAllowedTouchBehavior(aInputBlockId, aTargets);
+ }
+}
+
+bool
+TabChild::DoUpdateZoomConstraints(const uint32_t& aPresShellId,
+ const ViewID& aViewId,
+ const Maybe<ZoomConstraints>& aConstraints)
+{
+ if (sPreallocatedTab == this) {
+ // If we're the preallocated tab, bail out because doing IPC will crash.
+ // Once we get used for something we'll get another zoom constraints update
+ // and all will be well.
+ return true;
+ }
+
+ if (!mApzcTreeManager) {
+ return false;
+ }
+
+ ScrollableLayerGuid guid = ScrollableLayerGuid(mLayersId, aPresShellId, aViewId);
+
+ mApzcTreeManager->UpdateZoomConstraints(guid, aConstraints);
+ return true;
+}
+
+nsresult
+TabChild::Init()
+{
+ nsCOMPtr<nsIWebBrowser> webBrowser = do_CreateInstance(NS_WEBBROWSER_CONTRACTID);
+ if (!webBrowser) {
+ NS_ERROR("Couldn't create a nsWebBrowser?");
+ return NS_ERROR_FAILURE;
+ }
+
+ webBrowser->SetContainerWindow(this);
+ webBrowser->SetOriginAttributes(OriginAttributesRef());
+ mWebNav = do_QueryInterface(webBrowser);
+ NS_ASSERTION(mWebNav, "nsWebBrowser doesn't implement nsIWebNavigation?");
+
+ nsCOMPtr<nsIDocShellTreeItem> docShellItem(do_QueryInterface(WebNavigation()));
+ docShellItem->SetItemType(nsIDocShellTreeItem::typeContentWrapper);
+
+ nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
+ if (!baseWindow) {
+ NS_ERROR("mWebNav doesn't QI to nsIBaseWindow");
+ return NS_ERROR_FAILURE;
+ }
+
+ nsCOMPtr<nsIWidget> widget = nsIWidget::CreatePuppetWidget(this);
+ mPuppetWidget = static_cast<PuppetWidget*>(widget.get());
+ if (!mPuppetWidget) {
+ NS_ERROR("couldn't create fake widget");
+ return NS_ERROR_FAILURE;
+ }
+ mPuppetWidget->InfallibleCreate(
+ nullptr, 0, // no parents
+ LayoutDeviceIntRect(0, 0, 0, 0),
+ nullptr // HandleWidgetEvent
+ );
+
+ baseWindow->InitWindow(0, mPuppetWidget, 0, 0, 0, 0);
+ baseWindow->Create();
+
+ // Set the tab context attributes then pass to docShell
+ NotifyTabContextUpdated(false);
+
+ // IPC uses a WebBrowser object for which DNS prefetching is turned off
+ // by default. But here we really want it, so enable it explicitly
+ nsCOMPtr<nsIWebBrowserSetup> webBrowserSetup =
+ do_QueryInterface(baseWindow);
+ if (webBrowserSetup) {
+ webBrowserSetup->SetProperty(nsIWebBrowserSetup::SETUP_ALLOW_DNS_PREFETCH,
+ true);
+ } else {
+ NS_WARNING("baseWindow doesn't QI to nsIWebBrowserSetup, skipping "
+ "DNS prefetching enable step.");
+ }
+
+ nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
+ MOZ_ASSERT(docShell);
+
+ docShell->SetAffectPrivateSessionLifetime(
+ mChromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_LIFETIME);
+ nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(WebNavigation());
+ MOZ_ASSERT(loadContext);
+ loadContext->SetPrivateBrowsing(OriginAttributesRef().mPrivateBrowsingId > 0);
+ loadContext->SetRemoteTabs(
+ mChromeFlags & nsIWebBrowserChrome::CHROME_REMOTE_WINDOW);
+
+ // Few lines before, baseWindow->Create() will end up creating a new
+ // window root in nsGlobalWindow::SetDocShell.
+ // Then this chrome event handler, will be inherited to inner windows.
+ // We want to also set it to the docshell so that inner windows
+ // and any code that has access to the docshell
+ // can all listen to the same chrome event handler.
+ // XXX: ideally, we would set a chrome event handler earlier,
+ // and all windows, even the root one, will use the docshell one.
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+ NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
+ nsCOMPtr<EventTarget> chromeHandler =
+ do_QueryInterface(window->GetChromeEventHandler());
+ docShell->SetChromeEventHandler(chromeHandler);
+
+ if (window->GetCurrentInnerWindow()) {
+ window->SetKeyboardIndicators(ShowAccelerators(), ShowFocusRings());
+ } else {
+ // Skip ShouldShowFocusRing check if no inner window is available
+ window->SetInitialKeyboardIndicators(ShowAccelerators(), ShowFocusRings());
+ }
+
+ // Set prerender flag if necessary.
+ if (mIsPrerendered) {
+ docShell->SetIsPrerendered();
+ }
+
+ nsContentUtils::SetScrollbarsVisibility(window->GetDocShell(),
+ !!(mChromeFlags & nsIWebBrowserChrome::CHROME_SCROLLBARS));
+
+ nsWeakPtr weakPtrThis = do_GetWeakReference(static_cast<nsITabChild*>(this)); // for capture by the lambda
+ ContentReceivedInputBlockCallback callback(
+ [weakPtrThis](const ScrollableLayerGuid& aGuid,
+ uint64_t aInputBlockId,
+ bool aPreventDefault)
+ {
+ if (nsCOMPtr<nsITabChild> tabChild = do_QueryReferent(weakPtrThis)) {
+ static_cast<TabChild*>(tabChild.get())->ContentReceivedInputBlock(aGuid, aInputBlockId, aPreventDefault);
+ }
+ });
+ mAPZEventState = new APZEventState(mPuppetWidget, Move(callback));
+
+ mIPCOpen = true;
+
+ if (GroupedSHistory::GroupedHistoryEnabled()) {
+ // Set session history listener.
+ nsCOMPtr<nsISHistory> shistory;
+ mWebNav->GetSessionHistory(getter_AddRefs(shistory));
+ if (!shistory) {
+ return NS_ERROR_FAILURE;
+ }
+ mHistoryListener = new TabChildSHistoryListener(this);
+ nsCOMPtr<nsISHistoryListener> listener(do_QueryObject(mHistoryListener));
+ shistory->AddSHistoryListener(listener);
+ nsCOMPtr<nsIPartialSHistoryListener> partialListener(do_QueryObject(mHistoryListener));
+ shistory->SetPartialSHistoryListener(partialListener);
+ }
+
+ return NS_OK;
+}
+
+void
+TabChild::NotifyTabContextUpdated(bool aIsPreallocated)
+{
+ nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
+ MOZ_ASSERT(docShell);
+
+ if (!docShell) {
+ return;
+ }
+
+ UpdateFrameType();
+
+ if (aIsPreallocated) {
+ nsDocShell::Cast(docShell)->SetOriginAttributes(OriginAttributesRef());
+ }
+
+ // Set SANDBOXED_AUXILIARY_NAVIGATION flag if this is a receiver page.
+ if (!PresentationURL().IsEmpty()) {
+ docShell->SetSandboxFlags(SANDBOXED_AUXILIARY_NAVIGATION);
+ }
+}
+
+void
+TabChild::UpdateFrameType()
+{
+ nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
+ MOZ_ASSERT(docShell);
+
+ // TODO: Bug 1252794 - remove frameType from nsIDocShell.idl
+ docShell->SetFrameType(IsMozBrowserElement() ? nsIDocShell::FRAME_TYPE_BROWSER :
+ HasOwnApp() ? nsIDocShell::FRAME_TYPE_APP :
+ nsIDocShell::FRAME_TYPE_REGULAR);
+}
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TabChild)
+ NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome)
+ NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome2)
+ NS_INTERFACE_MAP_ENTRY(nsIEmbeddingSiteWindow)
+ NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChromeFocus)
+ NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
+ NS_INTERFACE_MAP_ENTRY(nsIWindowProvider)
+ NS_INTERFACE_MAP_ENTRY(nsITabChild)
+ NS_INTERFACE_MAP_ENTRY(nsIObserver)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_INTERFACE_MAP_ENTRY(nsITooltipListener)
+NS_INTERFACE_MAP_END_INHERITING(TabChildBase)
+
+NS_IMPL_ADDREF_INHERITED(TabChild, TabChildBase);
+NS_IMPL_RELEASE_INHERITED(TabChild, TabChildBase);
+
+NS_IMETHODIMP
+TabChild::SetStatus(uint32_t aStatusType, const char16_t* aStatus)
+{
+ return SetStatusWithContext(aStatusType,
+ aStatus ? static_cast<const nsString &>(nsDependentString(aStatus))
+ : EmptyString(),
+ nullptr);
+}
+
+NS_IMETHODIMP
+TabChild::GetWebBrowser(nsIWebBrowser** aWebBrowser)
+{
+ NS_WARNING("TabChild::GetWebBrowser not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::SetWebBrowser(nsIWebBrowser* aWebBrowser)
+{
+ NS_WARNING("TabChild::SetWebBrowser not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::GetChromeFlags(uint32_t* aChromeFlags)
+{
+ *aChromeFlags = mChromeFlags;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::SetChromeFlags(uint32_t aChromeFlags)
+{
+ NS_WARNING("trying to SetChromeFlags from content process?");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::DestroyBrowserWindow()
+{
+ NS_WARNING("TabChild::DestroyBrowserWindow not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::RemoteSizeShellTo(int32_t aWidth, int32_t aHeight,
+ int32_t aShellItemWidth, int32_t aShellItemHeight)
+{
+ nsCOMPtr<nsIDocShell> ourDocShell = do_GetInterface(WebNavigation());
+ nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(ourDocShell));
+ int32_t width, height;
+ docShellAsWin->GetSize(&width, &height);
+
+ uint32_t flags = 0;
+ if (width == aWidth) {
+ flags |= nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_CX;
+ }
+
+ if (height == aHeight) {
+ flags |= nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_CY;
+ }
+
+ bool sent = SendSizeShellTo(flags, aWidth, aHeight, aShellItemWidth, aShellItemHeight);
+
+ return sent ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+TabChild::RemoteDropLinks(uint32_t aLinksCount, nsIDroppedLinkItem** aLinks)
+{
+ nsTArray<nsString> linksArray;
+ nsresult rv = NS_OK;
+ for (uint32_t i = 0; i < aLinksCount; i++) {
+ nsString tmp;
+ rv = aLinks[i]->GetUrl(tmp);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ linksArray.AppendElement(tmp);
+
+ rv = aLinks[i]->GetName(tmp);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ linksArray.AppendElement(tmp);
+
+ rv = aLinks[i]->GetType(tmp);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ linksArray.AppendElement(tmp);
+ }
+
+ bool sent = SendDropLinks(linksArray);
+
+ return sent ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+TabChild::SizeBrowserTo(int32_t aWidth, int32_t aHeight)
+{
+ NS_WARNING("TabChild::SizeBrowserTo not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::ShowAsModal()
+{
+ NS_WARNING("TabChild::ShowAsModal not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::IsWindowModal(bool* aRetVal)
+{
+ *aRetVal = false;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::ExitModalEventLoop(nsresult aStatus)
+{
+ NS_WARNING("TabChild::ExitModalEventLoop not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::SetStatusWithContext(uint32_t aStatusType,
+ const nsAString& aStatusText,
+ nsISupports* aStatusContext)
+{
+ // We can only send the status after the ipc machinery is set up,
+ // mRemoteFrame is a good indicator.
+ if (mRemoteFrame)
+ SendSetStatus(aStatusType, nsString(aStatusText));
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::SetDimensions(uint32_t aFlags, int32_t aX, int32_t aY,
+ int32_t aCx, int32_t aCy)
+{
+ // The parent is in charge of the dimension changes. If JS code wants to
+ // change the dimensions (moveTo, screenX, etc.) we send a message to the
+ // parent about the new requested dimension, the parent does the resize/move
+ // then send a message to the child to update itself. For APIs like screenX
+ // this function is called with the current value for the non-changed values.
+ // In a series of calls like window.screenX = 10; window.screenY = 10; for
+ // the second call, since screenX is not yet updated we might accidentally
+ // reset back screenX to it's old value. To avoid this if a parameter did not
+ // change we want the parent to ignore its value.
+ int32_t x, y, cx, cy;
+ GetDimensions(aFlags, &x, &y, &cx, &cy);
+
+ if (x == aX) {
+ aFlags |= nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_X;
+ }
+
+ if (y == aY) {
+ aFlags |= nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_Y;
+ }
+
+ if (cx == aCx) {
+ aFlags |= nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_CX;
+ }
+
+ if (cy == aCy) {
+ aFlags |= nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_CY;
+ }
+
+ Unused << SendSetDimensions(aFlags, aX, aY, aCx, aCy);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::GetDimensions(uint32_t aFlags, int32_t* aX,
+ int32_t* aY, int32_t* aCx, int32_t* aCy)
+{
+ ScreenIntRect rect = GetOuterRect();
+ if (aX) {
+ *aX = rect.x;
+ }
+ if (aY) {
+ *aY = rect.y;
+ }
+ if (aCx) {
+ *aCx = rect.width;
+ }
+ if (aCy) {
+ *aCy = rect.height;
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::SetFocus()
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::GetVisibility(bool* aVisibility)
+{
+ *aVisibility = true;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::SetVisibility(bool aVisibility)
+{
+ // should the platform support this? Bug 666365
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::GetTitle(char16_t** aTitle)
+{
+ NS_WARNING("TabChild::GetTitle not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::SetTitle(const char16_t* aTitle)
+{
+ // JavaScript sends the "DOMTitleChanged" event to the parent
+ // via the message manager.
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::GetSiteWindow(void** aSiteWindow)
+{
+ NS_WARNING("TabChild::GetSiteWindow not supported in TabChild");
+
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::Blur()
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChild::FocusNextElement(bool aForDocumentNavigation)
+{
+ SendMoveFocus(true, aForDocumentNavigation);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::FocusPrevElement(bool aForDocumentNavigation)
+{
+ SendMoveFocus(false, aForDocumentNavigation);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::GetInterface(const nsIID & aIID, void **aSink)
+{
+ if (aIID.Equals(NS_GET_IID(nsIWebBrowserChrome3))) {
+ NS_IF_ADDREF(((nsISupports *) (*aSink = mWebBrowserChrome)));
+ return NS_OK;
+ }
+
+ // XXXbz should we restrict the set of interfaces we hand out here?
+ // See bug 537429
+ return QueryInterface(aIID, aSink);
+}
+
+NS_IMETHODIMP
+TabChild::ProvideWindow(mozIDOMWindowProxy* aParent,
+ uint32_t aChromeFlags,
+ bool aCalledFromJS,
+ bool aPositionSpecified, bool aSizeSpecified,
+ nsIURI* aURI, const nsAString& aName,
+ const nsACString& aFeatures, bool aForceNoOpener,
+ bool* aWindowIsNew, mozIDOMWindowProxy** aReturn)
+{
+ *aReturn = nullptr;
+
+ // If aParent is inside an <iframe mozbrowser> or <iframe mozapp> and this
+ // isn't a request to open a modal-type window, we're going to create a new
+ // <iframe mozbrowser/mozapp> and return its window here.
+ nsCOMPtr<nsIDocShell> docshell = do_GetInterface(aParent);
+ bool iframeMoz = (docshell && docshell->GetIsInMozBrowserOrApp() &&
+ !(aChromeFlags & (nsIWebBrowserChrome::CHROME_MODAL |
+ nsIWebBrowserChrome::CHROME_OPENAS_DIALOG |
+ nsIWebBrowserChrome::CHROME_OPENAS_CHROME)));
+
+ if (!iframeMoz) {
+ int32_t openLocation =
+ nsWindowWatcher::GetWindowOpenLocation(nsPIDOMWindowOuter::From(aParent),
+ aChromeFlags, aCalledFromJS,
+ aPositionSpecified, aSizeSpecified);
+
+ // If it turns out we're opening in the current browser, just hand over the
+ // current browser's docshell.
+ if (openLocation == nsIBrowserDOMWindow::OPEN_CURRENTWINDOW) {
+ nsCOMPtr<nsIWebBrowser> browser = do_GetInterface(WebNavigation());
+ *aWindowIsNew = false;
+ return browser->GetContentDOMWindow(aReturn);
+ }
+ }
+
+ // Note that ProvideWindowCommon may return NS_ERROR_ABORT if the
+ // open window call was canceled. It's important that we pass this error
+ // code back to our caller.
+ ContentChild* cc = ContentChild::GetSingleton();
+ return cc->ProvideWindowCommon(this,
+ aParent,
+ iframeMoz,
+ aChromeFlags,
+ aCalledFromJS,
+ aPositionSpecified,
+ aSizeSpecified,
+ aURI,
+ aName,
+ aFeatures,
+ aForceNoOpener,
+ aWindowIsNew,
+ aReturn);
+}
+
+void
+TabChild::DestroyWindow()
+{
+ nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
+ if (baseWindow)
+ baseWindow->Destroy();
+
+ // NB: the order of mPuppetWidget->Destroy() and mRemoteFrame->Destroy()
+ // is important: we want to kill off remote layers before their
+ // frames
+ if (mPuppetWidget) {
+ mPuppetWidget->Destroy();
+ }
+
+ if (mRemoteFrame) {
+ mRemoteFrame->Destroy();
+ mRemoteFrame = nullptr;
+ }
+
+
+ if (mLayersId != 0) {
+ MOZ_ASSERT(sTabChildren);
+ sTabChildren->Remove(mLayersId);
+ if (!sTabChildren->Count()) {
+ delete sTabChildren;
+ sTabChildren = nullptr;
+ }
+ mLayersId = 0;
+ }
+}
+
+void
+TabChild::ActorDestroy(ActorDestroyReason why)
+{
+ mIPCOpen = false;
+
+ DestroyWindow();
+
+ if (mTabChildGlobal) {
+ // We should have a message manager if the global is alive, but it
+ // seems sometimes we don't. Assert in aurora/nightly, but don't
+ // crash in release builds.
+ MOZ_DIAGNOSTIC_ASSERT(mTabChildGlobal->mMessageManager);
+ if (mTabChildGlobal->mMessageManager) {
+ // The messageManager relays messages via the TabChild which
+ // no longer exists.
+ static_cast<nsFrameMessageManager*>
+ (mTabChildGlobal->mMessageManager.get())->Disconnect();
+ mTabChildGlobal->mMessageManager = nullptr;
+ }
+ }
+
+ CompositorBridgeChild* compositorChild = static_cast<CompositorBridgeChild*>(CompositorBridgeChild::Get());
+ compositorChild->CancelNotifyAfterRemotePaint(this);
+
+ if (GetTabId() != 0) {
+ NestedTabChildMap().erase(GetTabId());
+ }
+}
+
+TabChild::~TabChild()
+{
+ DestroyWindow();
+
+ nsCOMPtr<nsIWebBrowser> webBrowser = do_QueryInterface(WebNavigation());
+ if (webBrowser) {
+ webBrowser->SetContainerWindow(nullptr);
+ }
+
+ if (mHistoryListener) {
+ mHistoryListener->ClearTabChild();
+ }
+}
+
+void
+TabChild::SetProcessNameToAppName()
+{
+ nsCOMPtr<mozIApplication> app = GetOwnApp();
+ if (!app) {
+ return;
+ }
+
+ nsAutoString appName;
+ nsresult rv = app->GetName(appName);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to retrieve app name");
+ return;
+ }
+
+ ContentChild::GetSingleton()->SetProcessName(appName, true);
+}
+
+bool
+TabChild::RecvLoadURL(const nsCString& aURI,
+ const ShowInfo& aInfo)
+{
+ if (!mDidLoadURLInit) {
+ mDidLoadURLInit = true;
+ if (!InitTabChildGlobal()) {
+ return false;
+ }
+
+ ApplyShowInfo(aInfo);
+
+ SetProcessNameToAppName();
+ }
+
+ nsresult rv =
+ WebNavigation()->LoadURI(NS_ConvertUTF8toUTF16(aURI).get(),
+ nsIWebNavigation::LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP |
+ nsIWebNavigation::LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL,
+ nullptr, nullptr, nullptr);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("WebNavigation()->LoadURI failed. Eating exception, what else can I do?");
+ }
+
+#ifdef MOZ_CRASHREPORTER
+ CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("URL"), aURI);
+#endif
+
+ return true;
+}
+
+void
+TabChild::DoFakeShow(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
+ const uint64_t& aLayersId,
+ PRenderFrameChild* aRenderFrame, const ShowInfo& aShowInfo)
+{
+ RecvShow(ScreenIntSize(0, 0), aShowInfo, aTextureFactoryIdentifier,
+ aLayersId, aRenderFrame, mParentIsActive, nsSizeMode_Normal);
+ mDidFakeShow = true;
+}
+
+void
+TabChild::ApplyShowInfo(const ShowInfo& aInfo)
+{
+ if (mDidSetRealShowInfo) {
+ return;
+ }
+
+ if (!aInfo.fakeShowInfo()) {
+ // Once we've got one ShowInfo from parent, no need to update the values
+ // anymore.
+ mDidSetRealShowInfo = true;
+ }
+
+ nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
+ if (docShell) {
+ nsCOMPtr<nsIDocShellTreeItem> item = do_GetInterface(docShell);
+ if (IsMozBrowserOrApp()) {
+ // B2G allows window.name to be set by changing the name attribute on the
+ // <iframe mozbrowser> element. window.open calls cause this attribute to
+ // be set to the correct value. A normal <xul:browser> element has no such
+ // attribute. The data we get here comes from reading the attribute, so we
+ // shouldn't trust it for <xul:browser> elements.
+ item->SetName(aInfo.name());
+ }
+ docShell->SetFullscreenAllowed(aInfo.fullscreenAllowed());
+ if (aInfo.isPrivate()) {
+ nsCOMPtr<nsILoadContext> context = do_GetInterface(docShell);
+ // No need to re-set private browsing mode.
+ if (!context->UsePrivateBrowsing()) {
+ if (docShell->GetHasLoadedNonBlankURI()) {
+ nsContentUtils::ReportToConsoleNonLocalized(
+ NS_LITERAL_STRING("We should not switch to Private Browsing after loading a document."),
+ nsIScriptError::warningFlag,
+ NS_LITERAL_CSTRING("mozprivatebrowsing"),
+ nullptr);
+ } else {
+ DocShellOriginAttributes attrs(nsDocShell::Cast(docShell)->GetOriginAttributes());
+ attrs.SyncAttributesWithPrivateBrowsing(true);
+ nsDocShell::Cast(docShell)->SetOriginAttributes(attrs);
+ }
+ }
+ }
+ }
+ mDPI = aInfo.dpi();
+ mRounding = aInfo.widgetRounding();
+ mDefaultScale = aInfo.defaultScale();
+ mIsTransparent = aInfo.isTransparent();
+}
+
+bool
+TabChild::RecvShow(const ScreenIntSize& aSize,
+ const ShowInfo& aInfo,
+ const TextureFactoryIdentifier& aTextureFactoryIdentifier,
+ const uint64_t& aLayersId,
+ PRenderFrameChild* aRenderFrame,
+ const bool& aParentIsActive,
+ const nsSizeMode& aSizeMode)
+{
+ MOZ_ASSERT((!mDidFakeShow && aRenderFrame) || (mDidFakeShow && !aRenderFrame));
+
+ mPuppetWidget->SetSizeMode(aSizeMode);
+ if (mDidFakeShow) {
+ ApplyShowInfo(aInfo);
+ RecvParentActivated(aParentIsActive);
+ return true;
+ }
+
+ nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
+ if (!baseWindow) {
+ NS_ERROR("WebNavigation() doesn't QI to nsIBaseWindow");
+ return false;
+ }
+
+ if (!InitRenderingState(aTextureFactoryIdentifier, aLayersId, aRenderFrame)) {
+ // We can fail to initialize our widget if the <browser
+ // remote> has already been destroyed, and we couldn't hook
+ // into the parent-process's layer system. That's not a fatal
+ // error.
+ return true;
+ }
+
+ baseWindow->SetVisibility(true);
+
+ bool res = InitTabChildGlobal();
+ ApplyShowInfo(aInfo);
+ RecvParentActivated(aParentIsActive);
+
+ return res;
+}
+
+bool
+TabChild::RecvUpdateDimensions(const CSSRect& rect, const CSSSize& size,
+ const ScreenOrientationInternal& orientation,
+ const LayoutDeviceIntPoint& clientOffset,
+ const LayoutDeviceIntPoint& chromeDisp)
+{
+ if (!mRemoteFrame) {
+ return true;
+ }
+
+ mUnscaledOuterRect = rect;
+ mClientOffset = clientOffset;
+ mChromeDisp = chromeDisp;
+
+ mOrientation = orientation;
+ SetUnscaledInnerSize(size);
+ if (!mHasValidInnerSize && size.width != 0 && size.height != 0) {
+ mHasValidInnerSize = true;
+ }
+
+ ScreenIntSize screenSize = GetInnerSize();
+ ScreenIntRect screenRect = GetOuterRect();
+
+ // Set the size on the document viewer before we update the widget and
+ // trigger a reflow. Otherwise the MobileViewportManager reads the stale
+ // size from the content viewer when it computes a new CSS viewport.
+ nsCOMPtr<nsIBaseWindow> baseWin = do_QueryInterface(WebNavigation());
+ baseWin->SetPositionAndSize(0, 0, screenSize.width, screenSize.height,
+ nsIBaseWindow::eRepaint);
+
+ mPuppetWidget->Resize(screenRect.x + clientOffset.x + chromeDisp.x,
+ screenRect.y + clientOffset.y + chromeDisp.y,
+ screenSize.width, screenSize.height, true);
+
+ return true;
+}
+
+bool
+TabChild::RecvSizeModeChanged(const nsSizeMode& aSizeMode)
+{
+ mPuppetWidget->SetSizeMode(aSizeMode);
+ if (!mPuppetWidget->IsVisible()) {
+ return true;
+ }
+ nsCOMPtr<nsIDocument> document(GetDocument());
+ nsCOMPtr<nsIPresShell> presShell = document->GetShell();
+ if (presShell) {
+ nsPresContext* presContext = presShell->GetPresContext();
+ if (presContext) {
+ presContext->SizeModeChanged(aSizeMode);
+ }
+ }
+ return true;
+}
+
+bool
+TabChild::UpdateFrame(const FrameMetrics& aFrameMetrics)
+{
+ return TabChildBase::UpdateFrameHandler(aFrameMetrics);
+}
+
+bool
+TabChild::RecvSuppressDisplayport(const bool& aEnabled)
+{
+ if (aEnabled) {
+ mActiveSuppressDisplayport++;
+ } else {
+ mActiveSuppressDisplayport--;
+ }
+
+ MOZ_ASSERT(mActiveSuppressDisplayport >= 0);
+ APZCCallbackHelper::SuppressDisplayport(aEnabled, GetPresShell());
+ return true;
+}
+
+void
+TabChild::HandleDoubleTap(const CSSPoint& aPoint, const Modifiers& aModifiers,
+ const ScrollableLayerGuid& aGuid)
+{
+ TABC_LOG("Handling double tap at %s with %p %p\n",
+ Stringify(aPoint).c_str(), mGlobal.get(), mTabChildGlobal.get());
+
+ if (!mGlobal || !mTabChildGlobal) {
+ return;
+ }
+
+ // Note: there is nothing to do with the modifiers here, as we are not
+ // synthesizing any sort of mouse event.
+ nsCOMPtr<nsIDocument> document = GetDocument();
+ CSSRect zoomToRect = CalculateRectToZoomTo(document, aPoint);
+ // The double-tap can be dispatched by any scroll frame (so |aGuid| could be
+ // the guid of any scroll frame), but the zoom-to-rect operation must be
+ // performed by the root content scroll frame, so query its identifiers
+ // for the SendZoomToRect() call rather than using the ones from |aGuid|.
+ uint32_t presShellId;
+ ViewID viewId;
+ if (APZCCallbackHelper::GetOrCreateScrollIdentifiers(
+ document->GetDocumentElement(), &presShellId, &viewId) && mApzcTreeManager) {
+ ScrollableLayerGuid guid(mLayersId, presShellId, viewId);
+
+ mApzcTreeManager->ZoomToRect(guid, zoomToRect, DEFAULT_BEHAVIOR);
+ }
+}
+
+bool
+TabChild::RecvHandleTap(const GeckoContentController::TapType& aType,
+ const LayoutDevicePoint& aPoint,
+ const Modifiers& aModifiers,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId)
+{
+ nsCOMPtr<nsIPresShell> presShell = GetPresShell();
+ if (!presShell) {
+ return true;
+ }
+ if (!presShell->GetPresContext()) {
+ return true;
+ }
+ CSSToLayoutDeviceScale scale(presShell->GetPresContext()->CSSToDevPixelScale());
+ CSSPoint point = APZCCallbackHelper::ApplyCallbackTransform(aPoint / scale, aGuid);
+
+ switch (aType) {
+ case GeckoContentController::TapType::eSingleTap:
+ if (mGlobal && mTabChildGlobal) {
+ mAPZEventState->ProcessSingleTap(point, scale, aModifiers, aGuid, 1);
+ }
+ break;
+ case GeckoContentController::TapType::eDoubleTap:
+ HandleDoubleTap(point, aModifiers, aGuid);
+ break;
+ case GeckoContentController::TapType::eSecondTap:
+ if (mGlobal && mTabChildGlobal) {
+ mAPZEventState->ProcessSingleTap(point, scale, aModifiers, aGuid, 2);
+ }
+ break;
+ case GeckoContentController::TapType::eLongTap:
+ if (mGlobal && mTabChildGlobal) {
+ mAPZEventState->ProcessLongTap(presShell, point, scale, aModifiers, aGuid,
+ aInputBlockId);
+ }
+ break;
+ case GeckoContentController::TapType::eLongTapUp:
+ if (mGlobal && mTabChildGlobal) {
+ mAPZEventState->ProcessLongTapUp(presShell, point, scale, aModifiers);
+ }
+ break;
+ case GeckoContentController::TapType::eSentinel:
+ // Should never happen, but we need to handle this case to make the compiler
+ // happy.
+ MOZ_ASSERT(false);
+ break;
+ }
+ return true;
+}
+
+bool
+TabChild::NotifyAPZStateChange(const ViewID& aViewId,
+ const layers::GeckoContentController::APZStateChange& aChange,
+ const int& aArg)
+{
+ mAPZEventState->ProcessAPZStateChange(aViewId, aChange, aArg);
+ if (aChange == layers::GeckoContentController::APZStateChange::eTransformEnd) {
+ // This is used by tests to determine when the APZ is done doing whatever
+ // it's doing. XXX generify this as needed when writing additional tests.
+ nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
+ observerService->NotifyObservers(nullptr, "APZ:TransformEnd", nullptr);
+ }
+ return true;
+}
+
+void
+TabChild::StartScrollbarDrag(const layers::AsyncDragMetrics& aDragMetrics)
+{
+ ScrollableLayerGuid guid(mLayersId, aDragMetrics.mPresShellId,
+ aDragMetrics.mViewId);
+
+ if (mApzcTreeManager) {
+ mApzcTreeManager->StartScrollbarDrag(guid, aDragMetrics);
+ }
+}
+
+void
+TabChild::ZoomToRect(const uint32_t& aPresShellId,
+ const FrameMetrics::ViewID& aViewId,
+ const CSSRect& aRect,
+ const uint32_t& aFlags)
+{
+ ScrollableLayerGuid guid(mLayersId, aPresShellId, aViewId);
+
+ if (mApzcTreeManager) {
+ mApzcTreeManager->ZoomToRect(guid, aRect, aFlags);
+ }
+}
+
+bool
+TabChild::RecvActivate()
+{
+ nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
+ browser->Activate();
+ return true;
+}
+
+bool TabChild::RecvDeactivate()
+{
+ nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
+ browser->Deactivate();
+ return true;
+}
+
+bool TabChild::RecvParentActivated(const bool& aActivated)
+{
+ mParentIsActive = aActivated;
+
+ nsFocusManager* fm = nsFocusManager::GetFocusManager();
+ NS_ENSURE_TRUE(fm, true);
+
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+ fm->ParentActivated(window, aActivated);
+ return true;
+}
+
+bool TabChild::RecvSetKeyboardIndicators(const UIStateChangeType& aShowAccelerators,
+ const UIStateChangeType& aShowFocusRings)
+{
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+ NS_ENSURE_TRUE(window, true);
+
+ window->SetKeyboardIndicators(aShowAccelerators, aShowFocusRings);
+ return true;
+}
+
+bool
+TabChild::RecvStopIMEStateManagement()
+{
+ IMEStateManager::StopIMEStateManagement();
+ return true;
+}
+
+bool
+TabChild::RecvMenuKeyboardListenerInstalled(const bool& aInstalled)
+{
+ IMEStateManager::OnInstalledMenuKeyboardListener(aInstalled);
+ return true;
+}
+
+bool
+TabChild::RecvNotifyAttachGroupedSessionHistory(const uint32_t& aOffset)
+{
+ // nsISHistory uses int32_t
+ if (NS_WARN_IF(aOffset > INT32_MAX)) {
+ return false;
+ }
+
+ nsCOMPtr<nsISHistory> shistory;
+ mWebNav->GetSessionHistory(getter_AddRefs(shistory));
+ NS_ENSURE_TRUE(shistory, false);
+
+ return NS_SUCCEEDED(shistory->OnAttachGroupedSessionHistory(aOffset));
+}
+
+bool
+TabChild::RecvNotifyPartialSessionHistoryActive(const uint32_t& aGlobalLength,
+ const uint32_t& aTargetLocalIndex)
+{
+ // nsISHistory uses int32_t
+ if (NS_WARN_IF(aGlobalLength > INT32_MAX || aTargetLocalIndex > INT32_MAX)) {
+ return false;
+ }
+
+ nsCOMPtr<nsISHistory> shistory;
+ mWebNav->GetSessionHistory(getter_AddRefs(shistory));
+ NS_ENSURE_TRUE(shistory, false);
+
+ return NS_SUCCEEDED(shistory->OnPartialSessionHistoryActive(aGlobalLength,
+ aTargetLocalIndex));
+}
+
+bool
+TabChild::RecvNotifyPartialSessionHistoryDeactive()
+{
+ nsCOMPtr<nsISHistory> shistory;
+ mWebNav->GetSessionHistory(getter_AddRefs(shistory));
+ NS_ENSURE_TRUE(shistory, false);
+
+ return NS_SUCCEEDED(shistory->OnPartialSessionHistoryDeactive());
+}
+
+bool
+TabChild::RecvMouseEvent(const nsString& aType,
+ const float& aX,
+ const float& aY,
+ const int32_t& aButton,
+ const int32_t& aClickCount,
+ const int32_t& aModifiers,
+ const bool& aIgnoreRootScrollFrame)
+{
+ APZCCallbackHelper::DispatchMouseEvent(GetPresShell(), aType, CSSPoint(aX, aY),
+ aButton, aClickCount, aModifiers, aIgnoreRootScrollFrame, nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN);
+ return true;
+}
+
+bool
+TabChild::RecvRealMouseMoveEvent(const WidgetMouseEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId)
+{
+ return RecvRealMouseButtonEvent(aEvent, aGuid, aInputBlockId);
+}
+
+bool
+TabChild::RecvSynthMouseMoveEvent(const WidgetMouseEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId)
+{
+ return RecvRealMouseButtonEvent(aEvent, aGuid, aInputBlockId);
+}
+
+bool
+TabChild::RecvRealMouseButtonEvent(const WidgetMouseEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId)
+{
+ // Mouse events like eMouseEnterIntoWidget, that are created in the parent
+ // process EventStateManager code, have an input block id which they get from
+ // the InputAPZContext in the parent process stack. However, they did not
+ // actually go through the APZ code and so their mHandledByAPZ flag is false.
+ // Since thos events didn't go through APZ, we don't need to send notifications
+ // for them.
+ if (aInputBlockId && aEvent.mFlags.mHandledByAPZ) {
+ nsCOMPtr<nsIDocument> document(GetDocument());
+ APZCCallbackHelper::SendSetTargetAPZCNotification(
+ mPuppetWidget, document, aEvent, aGuid, aInputBlockId);
+ }
+
+ nsEventStatus unused;
+ InputAPZContext context(aGuid, aInputBlockId, unused);
+
+ WidgetMouseEvent localEvent(aEvent);
+ localEvent.mWidget = mPuppetWidget;
+ APZCCallbackHelper::ApplyCallbackTransform(localEvent, aGuid,
+ mPuppetWidget->GetDefaultScale());
+ APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+
+ if (aInputBlockId && aEvent.mFlags.mHandledByAPZ) {
+ mAPZEventState->ProcessMouseEvent(aEvent, aGuid, aInputBlockId);
+ }
+ return true;
+}
+
+bool
+TabChild::RecvMouseWheelEvent(const WidgetWheelEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId)
+{
+ if (aInputBlockId && aEvent.mFlags.mHandledByAPZ) {
+ nsCOMPtr<nsIDocument> document(GetDocument());
+ APZCCallbackHelper::SendSetTargetAPZCNotification(
+ mPuppetWidget, document, aEvent, aGuid, aInputBlockId);
+ }
+
+ WidgetWheelEvent localEvent(aEvent);
+ localEvent.mWidget = mPuppetWidget;
+ APZCCallbackHelper::ApplyCallbackTransform(localEvent, aGuid,
+ mPuppetWidget->GetDefaultScale());
+ APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+
+ if (localEvent.mCanTriggerSwipe) {
+ SendRespondStartSwipeEvent(aInputBlockId, localEvent.TriggersSwipe());
+ }
+
+ if (aInputBlockId && aEvent.mFlags.mHandledByAPZ) {
+ mAPZEventState->ProcessWheelEvent(localEvent, aGuid, aInputBlockId);
+ }
+ return true;
+}
+
+bool
+TabChild::RecvRealTouchEvent(const WidgetTouchEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId,
+ const nsEventStatus& aApzResponse)
+{
+ TABC_LOG("Receiving touch event of type %d\n", aEvent.mMessage);
+
+ WidgetTouchEvent localEvent(aEvent);
+ localEvent.mWidget = mPuppetWidget;
+
+ APZCCallbackHelper::ApplyCallbackTransform(localEvent, aGuid,
+ mPuppetWidget->GetDefaultScale());
+
+ if (localEvent.mMessage == eTouchStart && AsyncPanZoomEnabled()) {
+ nsCOMPtr<nsIDocument> document = GetDocument();
+ if (gfxPrefs::TouchActionEnabled()) {
+ APZCCallbackHelper::SendSetAllowedTouchBehaviorNotification(mPuppetWidget,
+ document, localEvent, aInputBlockId, mSetAllowedTouchBehaviorCallback);
+ }
+ APZCCallbackHelper::SendSetTargetAPZCNotification(mPuppetWidget, document,
+ localEvent, aGuid, aInputBlockId);
+ }
+
+ // Dispatch event to content (potentially a long-running operation)
+ nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+
+ if (!AsyncPanZoomEnabled()) {
+ // We shouldn't have any e10s platforms that have touch events enabled
+ // without APZ.
+ MOZ_ASSERT(false);
+ return true;
+ }
+
+ mAPZEventState->ProcessTouchEvent(localEvent, aGuid, aInputBlockId,
+ aApzResponse, status);
+ return true;
+}
+
+bool
+TabChild::RecvRealTouchMoveEvent(const WidgetTouchEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId,
+ const nsEventStatus& aApzResponse)
+{
+ return RecvRealTouchEvent(aEvent, aGuid, aInputBlockId, aApzResponse);
+}
+
+bool
+TabChild::RecvRealDragEvent(const WidgetDragEvent& aEvent,
+ const uint32_t& aDragAction,
+ const uint32_t& aDropEffect)
+{
+ WidgetDragEvent localEvent(aEvent);
+ localEvent.mWidget = mPuppetWidget;
+
+ nsCOMPtr<nsIDragSession> dragSession = nsContentUtils::GetDragSession();
+ if (dragSession) {
+ dragSession->SetDragAction(aDragAction);
+ nsCOMPtr<nsIDOMDataTransfer> initialDataTransfer;
+ dragSession->GetDataTransfer(getter_AddRefs(initialDataTransfer));
+ if (initialDataTransfer) {
+ initialDataTransfer->SetDropEffectInt(aDropEffect);
+ }
+ }
+
+ if (aEvent.mMessage == eDrop) {
+ bool canDrop = true;
+ if (!dragSession || NS_FAILED(dragSession->GetCanDrop(&canDrop)) ||
+ !canDrop) {
+ localEvent.mMessage = eDragExit;
+ }
+ } else if (aEvent.mMessage == eDragOver) {
+ nsCOMPtr<nsIDragService> dragService =
+ do_GetService("@mozilla.org/widget/dragservice;1");
+ if (dragService) {
+ // This will dispatch 'drag' event at the source if the
+ // drag transaction started in this process.
+ dragService->FireDragEventAtSource(eDrag);
+ }
+ }
+
+ APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+ return true;
+}
+
+bool
+TabChild::RecvPluginEvent(const WidgetPluginEvent& aEvent)
+{
+ WidgetPluginEvent localEvent(aEvent);
+ localEvent.mWidget = mPuppetWidget;
+ nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+ if (status != nsEventStatus_eConsumeNoDefault) {
+ // If not consumed, we should call default action
+ SendDefaultProcOfPluginEvent(aEvent);
+ }
+ return true;
+}
+
+void
+TabChild::RequestNativeKeyBindings(AutoCacheNativeKeyCommands* aAutoCache,
+ const WidgetKeyboardEvent* aEvent)
+{
+ MaybeNativeKeyBinding maybeBindings;
+ if (!SendRequestNativeKeyBindings(*aEvent, &maybeBindings)) {
+ return;
+ }
+
+ if (maybeBindings.type() == MaybeNativeKeyBinding::TNativeKeyBinding) {
+ const NativeKeyBinding& bindings = maybeBindings;
+ aAutoCache->Cache(bindings.singleLineCommands(),
+ bindings.multiLineCommands(),
+ bindings.richTextCommands());
+ } else {
+ aAutoCache->CacheNoCommands();
+ }
+}
+
+bool
+TabChild::RecvNativeSynthesisResponse(const uint64_t& aObserverId,
+ const nsCString& aResponse)
+{
+ mozilla::widget::AutoObserverNotifier::NotifySavedObserver(aObserverId, aResponse.get());
+ return true;
+}
+
+bool
+TabChild::RecvRealKeyEvent(const WidgetKeyboardEvent& event,
+ const MaybeNativeKeyBinding& aBindings)
+{
+ AutoCacheNativeKeyCommands autoCache(mPuppetWidget);
+
+ if (event.mMessage == eKeyPress) {
+ // If content code called preventDefault() on a keydown event, then we don't
+ // want to process any following keypress events.
+ if (mIgnoreKeyPressEvent) {
+ return true;
+ }
+ if (aBindings.type() == MaybeNativeKeyBinding::TNativeKeyBinding) {
+ const NativeKeyBinding& bindings = aBindings;
+ autoCache.Cache(bindings.singleLineCommands(),
+ bindings.multiLineCommands(),
+ bindings.richTextCommands());
+ } else {
+ autoCache.CacheNoCommands();
+ }
+ }
+
+ WidgetKeyboardEvent localEvent(event);
+ localEvent.mWidget = mPuppetWidget;
+ nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+
+ if (event.mMessage == eKeyDown) {
+ mIgnoreKeyPressEvent = status == nsEventStatus_eConsumeNoDefault;
+ }
+
+ if (localEvent.mFlags.mIsSuppressedOrDelayed) {
+ localEvent.PreventDefault();
+ }
+
+ // If a response is desired from the content process, resend the key event.
+ // If mAccessKeyForwardedToChild is set, then don't resend the key event yet
+ // as RecvHandleAccessKey will do this.
+ if (localEvent.mFlags.mWantReplyFromContentProcess) {
+ SendReplyKeyEvent(localEvent);
+ }
+
+ if (localEvent.mAccessKeyForwardedToChild) {
+ SendAccessKeyNotHandled(localEvent);
+ }
+
+ if (PresShell::BeforeAfterKeyboardEventEnabled()) {
+ SendDispatchAfterKeyboardEvent(localEvent);
+ }
+
+ return true;
+}
+
+bool
+TabChild::RecvKeyEvent(const nsString& aType,
+ const int32_t& aKeyCode,
+ const int32_t& aCharCode,
+ const int32_t& aModifiers,
+ const bool& aPreventDefault)
+{
+ bool ignored = false;
+ nsContentUtils::SendKeyEvent(mPuppetWidget, aType, aKeyCode, aCharCode,
+ aModifiers, aPreventDefault, &ignored);
+ return true;
+}
+
+bool
+TabChild::RecvCompositionEvent(const WidgetCompositionEvent& event)
+{
+ WidgetCompositionEvent localEvent(event);
+ localEvent.mWidget = mPuppetWidget;
+ APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+ Unused << SendOnEventNeedingAckHandled(event.mMessage);
+ return true;
+}
+
+bool
+TabChild::RecvSelectionEvent(const WidgetSelectionEvent& event)
+{
+ WidgetSelectionEvent localEvent(event);
+ localEvent.mWidget = mPuppetWidget;
+ APZCCallbackHelper::DispatchWidgetEvent(localEvent);
+ Unused << SendOnEventNeedingAckHandled(event.mMessage);
+ return true;
+}
+
+bool
+TabChild::RecvPasteTransferable(const IPCDataTransfer& aDataTransfer,
+ const bool& aIsPrivateData,
+ const IPC::Principal& aRequestingPrincipal)
+{
+ nsresult rv;
+ nsCOMPtr<nsITransferable> trans =
+ do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
+ NS_ENSURE_SUCCESS(rv, true);
+ trans->Init(nullptr);
+
+ rv = nsContentUtils::IPCTransferableToTransferable(aDataTransfer,
+ aIsPrivateData,
+ aRequestingPrincipal,
+ trans, nullptr, this);
+ NS_ENSURE_SUCCESS(rv, true);
+
+ nsCOMPtr<nsIDocShell> ourDocShell = do_GetInterface(WebNavigation());
+ if (NS_WARN_IF(!ourDocShell)) {
+ return true;
+ }
+
+ nsCOMPtr<nsICommandParams> params = do_CreateInstance("@mozilla.org/embedcomp/command-params;1", &rv);
+ NS_ENSURE_SUCCESS(rv, true);
+
+ rv = params->SetISupportsValue("transferable", trans);
+ NS_ENSURE_SUCCESS(rv, true);
+
+ ourDocShell->DoCommandWithParams("cmd_pasteTransferable", params);
+ return true;
+}
+
+
+a11y::PDocAccessibleChild*
+TabChild::AllocPDocAccessibleChild(PDocAccessibleChild*, const uint64_t&,
+ const uint32_t&, const IAccessibleHolder&)
+{
+ MOZ_ASSERT(false, "should never call this!");
+ return nullptr;
+}
+
+bool
+TabChild::DeallocPDocAccessibleChild(a11y::PDocAccessibleChild* aChild)
+{
+#ifdef ACCESSIBILITY
+ delete static_cast<mozilla::a11y::DocAccessibleChild*>(aChild);
+#endif
+ return true;
+}
+
+PDocumentRendererChild*
+TabChild::AllocPDocumentRendererChild(const nsRect& documentRect,
+ const mozilla::gfx::Matrix& transform,
+ const nsString& bgcolor,
+ const uint32_t& renderFlags,
+ const bool& flushLayout,
+ const nsIntSize& renderSize)
+{
+ return new DocumentRendererChild();
+}
+
+bool
+TabChild::DeallocPDocumentRendererChild(PDocumentRendererChild* actor)
+{
+ delete actor;
+ return true;
+}
+
+bool
+TabChild::RecvPDocumentRendererConstructor(PDocumentRendererChild* actor,
+ const nsRect& documentRect,
+ const mozilla::gfx::Matrix& transform,
+ const nsString& bgcolor,
+ const uint32_t& renderFlags,
+ const bool& flushLayout,
+ const nsIntSize& renderSize)
+{
+ DocumentRendererChild *render = static_cast<DocumentRendererChild *>(actor);
+
+ nsCOMPtr<nsIWebBrowser> browser = do_QueryInterface(WebNavigation());
+ if (!browser)
+ return true; // silently ignore
+ nsCOMPtr<mozIDOMWindowProxy> window;
+ if (NS_FAILED(browser->GetContentDOMWindow(getter_AddRefs(window))) ||
+ !window)
+ {
+ return true; // silently ignore
+ }
+
+ nsCString data;
+ bool ret = render->RenderDocument(nsPIDOMWindowOuter::From(window),
+ documentRect, transform,
+ bgcolor,
+ renderFlags, flushLayout,
+ renderSize, data);
+ if (!ret)
+ return true; // silently ignore
+
+ return PDocumentRendererChild::Send__delete__(actor, renderSize, data);
+}
+
+PColorPickerChild*
+TabChild::AllocPColorPickerChild(const nsString&, const nsString&)
+{
+ NS_RUNTIMEABORT("unused");
+ return nullptr;
+}
+
+bool
+TabChild::DeallocPColorPickerChild(PColorPickerChild* aColorPicker)
+{
+ nsColorPickerProxy* picker = static_cast<nsColorPickerProxy*>(aColorPicker);
+ NS_RELEASE(picker);
+ return true;
+}
+
+PDatePickerChild*
+TabChild::AllocPDatePickerChild(const nsString&, const nsString&)
+{
+ NS_RUNTIMEABORT("unused");
+ return nullptr;
+}
+
+bool
+TabChild::DeallocPDatePickerChild(PDatePickerChild* aDatePicker)
+{
+ nsDatePickerProxy* picker = static_cast<nsDatePickerProxy*>(aDatePicker);
+ NS_RELEASE(picker);
+ return true;
+}
+
+PFilePickerChild*
+TabChild::AllocPFilePickerChild(const nsString&, const int16_t&)
+{
+ NS_RUNTIMEABORT("unused");
+ return nullptr;
+}
+
+bool
+TabChild::DeallocPFilePickerChild(PFilePickerChild* actor)
+{
+ nsFilePickerProxy* filePicker = static_cast<nsFilePickerProxy*>(actor);
+ NS_RELEASE(filePicker);
+ return true;
+}
+
+auto
+TabChild::AllocPIndexedDBPermissionRequestChild(const Principal& aPrincipal)
+ -> PIndexedDBPermissionRequestChild*
+{
+ MOZ_CRASH("PIndexedDBPermissionRequestChild actors should always be created "
+ "manually!");
+}
+
+bool
+TabChild::DeallocPIndexedDBPermissionRequestChild(
+ PIndexedDBPermissionRequestChild* aActor)
+{
+ MOZ_ASSERT(aActor);
+ delete aActor;
+ return true;
+}
+
+bool
+TabChild::RecvActivateFrameEvent(const nsString& aType, const bool& capture)
+{
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+ NS_ENSURE_TRUE(window, true);
+ nsCOMPtr<EventTarget> chromeHandler =
+ do_QueryInterface(window->GetChromeEventHandler());
+ NS_ENSURE_TRUE(chromeHandler, true);
+ RefPtr<ContentListener> listener = new ContentListener(this);
+ chromeHandler->AddEventListener(aType, listener, capture);
+ return true;
+}
+
+bool
+TabChild::RecvLoadRemoteScript(const nsString& aURL, const bool& aRunInGlobalScope)
+{
+ if (!mGlobal && !InitTabChildGlobal())
+ // This can happen if we're half-destroyed. It's not a fatal
+ // error.
+ return true;
+
+ LoadScriptInternal(aURL, aRunInGlobalScope);
+ return true;
+}
+
+bool
+TabChild::RecvAsyncMessage(const nsString& aMessage,
+ InfallibleTArray<CpowEntry>&& aCpows,
+ const IPC::Principal& aPrincipal,
+ const ClonedMessageData& aData)
+{
+ if (!mTabChildGlobal) {
+ return true;
+ }
+
+ // We should have a message manager if the global is alive, but it
+ // seems sometimes we don't. Assert in aurora/nightly, but don't
+ // crash in release builds.
+ MOZ_DIAGNOSTIC_ASSERT(mTabChildGlobal->mMessageManager);
+ if (!mTabChildGlobal->mMessageManager) {
+ return true;
+ }
+
+ nsCOMPtr<nsIXPConnectJSObjectHolder> kungFuDeathGrip(GetGlobal());
+ StructuredCloneData data;
+ UnpackClonedMessageDataForChild(aData, data);
+ RefPtr<nsFrameMessageManager> mm =
+ static_cast<nsFrameMessageManager*>(mTabChildGlobal->mMessageManager.get());
+ CrossProcessCpowHolder cpows(Manager(), aCpows);
+ mm->ReceiveMessage(static_cast<EventTarget*>(mTabChildGlobal), nullptr,
+ aMessage, false, &data, &cpows, aPrincipal, nullptr);
+ return true;
+}
+
+bool
+TabChild::RecvSwappedWithOtherRemoteLoader(const IPCTabContext& aContext)
+{
+ nsCOMPtr<nsIDocShell> ourDocShell = do_GetInterface(WebNavigation());
+ if (NS_WARN_IF(!ourDocShell)) {
+ return true;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> ourWindow = ourDocShell->GetWindow();
+ if (NS_WARN_IF(!ourWindow)) {
+ return true;
+ }
+
+ RefPtr<nsDocShell> docShell = static_cast<nsDocShell*>(ourDocShell.get());
+
+ nsCOMPtr<EventTarget> ourEventTarget = ourWindow->GetParentTarget();
+
+ docShell->SetInFrameSwap(true);
+
+ nsContentUtils::FirePageShowEvent(ourDocShell, ourEventTarget, false);
+ nsContentUtils::FirePageHideEvent(ourDocShell, ourEventTarget);
+
+ // Owner content type may have changed, so store the possibly updated context
+ // and notify others.
+ MaybeInvalidTabContext maybeContext(aContext);
+ if (!maybeContext.IsValid()) {
+ NS_ERROR(nsPrintfCString("Received an invalid TabContext from "
+ "the parent process. (%s)",
+ maybeContext.GetInvalidReason()).get());
+ MOZ_CRASH("Invalid TabContext received from the parent process.");
+ }
+
+ if (!UpdateTabContextAfterSwap(maybeContext.GetTabContext())) {
+ MOZ_CRASH("Update to TabContext after swap was denied.");
+ }
+
+ // Since mIsMozBrowserElement may change in UpdateTabContextAfterSwap, so we
+ // call UpdateFrameType here to make sure the frameType on the docshell is
+ // correct.
+ UpdateFrameType();
+
+ // Ignore previous value of mTriedBrowserInit since owner content has changed.
+ mTriedBrowserInit = true;
+ // Initialize the child side of the browser element machinery, if appropriate.
+ if (IsMozBrowserOrApp()) {
+ RecvLoadRemoteScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
+ }
+
+ nsContentUtils::FirePageShowEvent(ourDocShell, ourEventTarget, true);
+
+ docShell->SetInFrameSwap(false);
+
+ return true;
+}
+
+bool
+TabChild::RecvHandleAccessKey(const WidgetKeyboardEvent& aEvent,
+ nsTArray<uint32_t>&& aCharCodes,
+ const int32_t& aModifierMask)
+{
+ nsCOMPtr<nsIDocument> document(GetDocument());
+ nsCOMPtr<nsIPresShell> presShell = document->GetShell();
+ if (presShell) {
+ nsPresContext* pc = presShell->GetPresContext();
+ if (pc) {
+ if (!pc->EventStateManager()->
+ HandleAccessKey(&(const_cast<WidgetKeyboardEvent&>(aEvent)),
+ pc, aCharCodes,
+ aModifierMask, true)) {
+ // If no accesskey was found, inform the parent so that accesskeys on
+ // menus can be handled.
+ WidgetKeyboardEvent localEvent(aEvent);
+ localEvent.mWidget = mPuppetWidget;
+ SendAccessKeyNotHandled(localEvent);
+ }
+ }
+ }
+
+ return true;
+}
+
+bool
+TabChild::RecvAudioChannelChangeNotification(const uint32_t& aAudioChannel,
+ const float& aVolume,
+ const bool& aMuted)
+{
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+ if (window) {
+ RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
+ MOZ_ASSERT(service);
+
+ service->SetAudioChannelVolume(window,
+ static_cast<AudioChannel>(aAudioChannel),
+ aVolume);
+ service->SetAudioChannelMuted(window,
+ static_cast<AudioChannel>(aAudioChannel),
+ aMuted);
+ }
+
+ return true;
+}
+
+bool
+TabChild::RecvSetUseGlobalHistory(const bool& aUse)
+{
+ nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
+ MOZ_ASSERT(docShell);
+
+ nsresult rv = docShell->SetUseGlobalHistory(aUse);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to set UseGlobalHistory on TabChild docShell");
+ }
+
+ return true;
+}
+
+bool
+TabChild::RecvPrint(const uint64_t& aOuterWindowID, const PrintData& aPrintData)
+{
+#ifdef NS_PRINTING
+ nsGlobalWindow* outerWindow =
+ nsGlobalWindow::GetOuterWindowWithId(aOuterWindowID);
+ if (NS_WARN_IF(!outerWindow)) {
+ return true;
+ }
+
+ nsCOMPtr<nsIWebBrowserPrint> webBrowserPrint =
+ do_GetInterface(outerWindow->AsOuter());
+ if (NS_WARN_IF(!webBrowserPrint)) {
+ return true;
+ }
+
+ nsCOMPtr<nsIPrintSettingsService> printSettingsSvc =
+ do_GetService("@mozilla.org/gfx/printsettings-service;1");
+ if (NS_WARN_IF(!printSettingsSvc)) {
+ return true;
+ }
+
+ nsCOMPtr<nsIPrintSettings> printSettings;
+ nsresult rv =
+ printSettingsSvc->GetNewPrintSettings(getter_AddRefs(printSettings));
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return true;
+ }
+
+ nsCOMPtr<nsIPrintSession> printSession =
+ do_CreateInstance("@mozilla.org/gfx/printsession;1", &rv);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return true;
+ }
+
+ printSettings->SetPrintSession(printSession);
+ printSettingsSvc->DeserializeToPrintSettings(aPrintData, printSettings);
+ rv = webBrowserPrint->Print(printSettings, nullptr);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return true;
+ }
+
+#endif
+ return true;
+}
+
+bool
+TabChild::RecvUpdateNativeWindowHandle(const uintptr_t& aNewHandle)
+{
+#if defined(XP_WIN) && defined(ACCESSIBILITY)
+ mNativeWindowHandle = aNewHandle;
+ return true;
+#else
+ return false;
+#endif
+}
+
+bool
+TabChild::RecvDestroy()
+{
+ MOZ_ASSERT(mDestroyed == false);
+ mDestroyed = true;
+
+ nsTArray<PContentPermissionRequestChild*> childArray =
+ nsContentPermissionUtils::GetContentPermissionRequestChildById(GetTabId());
+
+ // Need to close undeleted ContentPermissionRequestChilds before tab is closed.
+ for (auto& permissionRequestChild : childArray) {
+ auto child = static_cast<RemotePermissionRequest*>(permissionRequestChild);
+ child->Destroy();
+ }
+
+ while (mActiveSuppressDisplayport > 0) {
+ APZCCallbackHelper::SuppressDisplayport(false, nullptr);
+ mActiveSuppressDisplayport--;
+ }
+
+ if (mTabChildGlobal) {
+ // Message handlers are called from the event loop, so it better be safe to
+ // run script.
+ MOZ_ASSERT(nsContentUtils::IsSafeToRunScript());
+ mTabChildGlobal->DispatchTrustedEvent(NS_LITERAL_STRING("unload"));
+ }
+
+ nsCOMPtr<nsIObserverService> observerService =
+ mozilla::services::GetObserverService();
+
+ observerService->RemoveObserver(this, BEFORE_FIRST_PAINT);
+
+ const nsAttrValue::EnumTable* table =
+ AudioChannelService::GetAudioChannelTable();
+
+ nsAutoCString topic;
+ for (uint32_t i = 0; table[i].tag; ++i) {
+ topic.Assign("audiochannel-activity-");
+ topic.Append(table[i].tag);
+
+ observerService->RemoveObserver(this, topic.get());
+ }
+
+ // XXX what other code in ~TabChild() should we be running here?
+ DestroyWindow();
+
+ // Bounce through the event loop once to allow any delayed teardown runnables
+ // that were just generated to have a chance to run.
+ nsCOMPtr<nsIRunnable> deleteRunnable = new DelayedDeleteRunnable(this);
+ MOZ_ALWAYS_SUCCEEDS(NS_DispatchToCurrentThread(deleteRunnable));
+
+ return true;
+}
+
+bool
+TabChild::RecvSetDocShellIsActive(const bool& aIsActive,
+ const bool& aPreserveLayers,
+ const uint64_t& aLayerObserverEpoch)
+{
+ // Since SetDocShellIsActive requests come in from both the hang monitor
+ // channel and the PContent channel, we have an ordering problem. This code
+ // ensures that we respect the order in which the requests were made and
+ // ignore stale requests.
+ if (mLayerObserverEpoch >= aLayerObserverEpoch) {
+ return true;
+ }
+ mLayerObserverEpoch = aLayerObserverEpoch;
+
+ MOZ_ASSERT(mPuppetWidget);
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager());
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() ==
+ LayersBackend::LAYERS_CLIENT);
+
+ auto clearForcePaint = MakeScopeExit([&] {
+ // We might force a paint, or we might already have painted and this is a
+ // no-op. In either case, once we exit this scope, we need to alert the
+ // ProcessHangMonitor that we've finished responding to what might have
+ // been a request to force paint. This is so that the BackgroundHangMonitor
+ // for force painting can be made to wait again.
+ if (aIsActive) {
+ ProcessHangMonitor::ClearForcePaint();
+ }
+ });
+
+ // We send the current layer observer epoch to the compositor so that
+ // TabParent knows whether a layer update notification corresponds to the
+ // latest SetDocShellIsActive request that was made.
+ if (ClientLayerManager* clm = mPuppetWidget->GetLayerManager()->AsClientLayerManager()) {
+ clm->SetLayerObserverEpoch(aLayerObserverEpoch);
+ }
+
+ // docshell is consider prerendered only if not active yet
+ mIsPrerendered &= !aIsActive;
+ nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
+ if (docShell) {
+ bool wasActive;
+ docShell->GetIsActive(&wasActive);
+ if (aIsActive && wasActive) {
+ // This request is a no-op. In this case, we still want a MozLayerTreeReady
+ // notification to fire in the parent (so that it knows that the child has
+ // updated its epoch). ForcePaintNoOp does that.
+ if (IPCOpen()) {
+ Unused << SendForcePaintNoOp(aLayerObserverEpoch);
+ return true;
+ }
+ }
+
+ docShell->SetIsActive(aIsActive);
+ }
+
+ if (aIsActive) {
+ MakeVisible();
+
+ // We don't use TabChildBase::GetPresShell() here because that would create
+ // a content viewer if one doesn't exist yet. Creating a content viewer can
+ // cause JS to run, which we want to avoid. nsIDocShell::GetPresShell
+ // returns null if no content viewer exists yet.
+ if (nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell()) {
+ if (nsIFrame* root = presShell->FrameConstructor()->GetRootFrame()) {
+ FrameLayerBuilder::InvalidateAllLayersForFrame(
+ nsLayoutUtils::GetDisplayRootFrame(root));
+ root->SchedulePaint();
+ }
+
+ Telemetry::AutoTimer<Telemetry::TABCHILD_PAINT_TIME> timer;
+ // If we need to repaint, let's do that right away. No sense waiting until
+ // we get back to the event loop again. We suppress the display port so that
+ // we only paint what's visible. This ensures that the tab we're switching
+ // to paints as quickly as possible.
+ APZCCallbackHelper::SuppressDisplayport(true, presShell);
+ if (nsContentUtils::IsSafeToRunScript()) {
+ WebWidget()->PaintNowIfNeeded();
+ } else {
+ RefPtr<nsViewManager> vm = presShell->GetViewManager();
+ if (nsView* view = vm->GetRootView()) {
+ presShell->Paint(view, view->GetBounds(),
+ nsIPresShell::PAINT_LAYERS);
+ }
+ }
+ APZCCallbackHelper::SuppressDisplayport(false, presShell);
+ }
+ } else if (!aPreserveLayers) {
+ MakeHidden();
+ }
+
+ return true;
+}
+
+bool
+TabChild::RecvNavigateByKey(const bool& aForward, const bool& aForDocumentNavigation)
+{
+ nsIFocusManager* fm = nsFocusManager::GetFocusManager();
+ if (fm) {
+ nsCOMPtr<nsIDOMElement> result;
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+
+ // Move to the first or last document.
+ uint32_t type = aForward ?
+ (aForDocumentNavigation ? static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_FIRSTDOC) :
+ static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_ROOT)) :
+ (aForDocumentNavigation ? static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_LASTDOC) :
+ static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_LAST));
+ fm->MoveFocus(window, nullptr, type,
+ nsIFocusManager::FLAG_BYKEY, getter_AddRefs(result));
+
+ // No valid root element was found, so move to the first focusable element.
+ if (!result && aForward && !aForDocumentNavigation) {
+ fm->MoveFocus(window, nullptr, nsIFocusManager::MOVEFOCUS_FIRST,
+ nsIFocusManager::FLAG_BYKEY, getter_AddRefs(result));
+ }
+
+ SendRequestFocus(false);
+ }
+
+ return true;
+}
+
+bool
+TabChild::RecvHandledWindowedPluginKeyEvent(
+ const NativeEventData& aKeyEventData,
+ const bool& aIsConsumed)
+{
+ if (NS_WARN_IF(!mPuppetWidget)) {
+ return true;
+ }
+ mPuppetWidget->HandledWindowedPluginKeyEvent(aKeyEventData, aIsConsumed);
+ return true;
+}
+
+PRenderFrameChild*
+TabChild::AllocPRenderFrameChild()
+{
+ return new RenderFrameChild();
+}
+
+bool
+TabChild::DeallocPRenderFrameChild(PRenderFrameChild* aFrame)
+{
+ delete aFrame;
+ return true;
+}
+
+bool
+TabChild::InitTabChildGlobal(FrameScriptLoading aScriptLoading)
+{
+ if (!mGlobal && !mTabChildGlobal) {
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
+ NS_ENSURE_TRUE(window, false);
+ nsCOMPtr<EventTarget> chromeHandler =
+ do_QueryInterface(window->GetChromeEventHandler());
+ NS_ENSURE_TRUE(chromeHandler, false);
+
+ RefPtr<TabChildGlobal> scope = new TabChildGlobal(this);
+ mTabChildGlobal = scope;
+
+ nsISupports* scopeSupports = NS_ISUPPORTS_CAST(EventTarget*, scope);
+
+ NS_NAMED_LITERAL_CSTRING(globalId, "outOfProcessTabChildGlobal");
+ NS_ENSURE_TRUE(InitChildGlobalInternal(scopeSupports, globalId), false);
+
+ scope->Init();
+
+ nsCOMPtr<nsPIWindowRoot> root = do_QueryInterface(chromeHandler);
+ NS_ENSURE_TRUE(root, false);
+ root->SetParentTarget(scope);
+ }
+
+ if (aScriptLoading != DONT_LOAD_SCRIPTS && !mTriedBrowserInit) {
+ mTriedBrowserInit = true;
+ // Initialize the child side of the browser element machinery,
+ // if appropriate.
+ if (IsMozBrowserOrApp()) {
+ RecvLoadRemoteScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
+ }
+ }
+
+ return true;
+}
+
+bool
+TabChild::InitRenderingState(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
+ const uint64_t& aLayersId,
+ PRenderFrameChild* aRenderFrame)
+{
+ mPuppetWidget->InitIMEState();
+
+ RenderFrameChild* remoteFrame = static_cast<RenderFrameChild*>(aRenderFrame);
+ if (!remoteFrame) {
+ NS_WARNING("failed to construct RenderFrame");
+ return false;
+ }
+
+ MOZ_ASSERT(aLayersId != 0);
+ mTextureFactoryIdentifier = aTextureFactoryIdentifier;
+
+ // Pushing layers transactions directly to a separate
+ // compositor context.
+ PCompositorBridgeChild* compositorChild = CompositorBridgeChild::Get();
+ if (!compositorChild) {
+ NS_WARNING("failed to get CompositorBridgeChild instance");
+ PRenderFrameChild::Send__delete__(remoteFrame);
+ return false;
+ }
+
+ ShadowLayerForwarder* lf =
+ mPuppetWidget->GetLayerManager(
+ nullptr, mTextureFactoryIdentifier.mParentBackend)
+ ->AsShadowForwarder();
+ // As long as we are creating a ClientLayerManager for the puppet widget,
+ // lf must be non-null here.
+ MOZ_ASSERT(lf);
+
+ if (lf) {
+ nsTArray<LayersBackend> backends;
+ backends.AppendElement(mTextureFactoryIdentifier.mParentBackend);
+ bool success;
+ PLayerTransactionChild* shadowManager =
+ compositorChild->SendPLayerTransactionConstructor(backends,
+ aLayersId, &mTextureFactoryIdentifier, &success);
+ if (!success) {
+ NS_WARNING("failed to properly allocate layer transaction");
+ PRenderFrameChild::Send__delete__(remoteFrame);
+ return false;
+ }
+
+ if (!shadowManager) {
+ NS_WARNING("failed to construct LayersChild");
+ // This results in |remoteFrame| being deleted.
+ PRenderFrameChild::Send__delete__(remoteFrame);
+ return false;
+ }
+
+ lf->SetShadowManager(shadowManager);
+ lf->IdentifyTextureHost(mTextureFactoryIdentifier);
+ ImageBridgeChild::IdentifyCompositorTextureHost(mTextureFactoryIdentifier);
+ gfx::VRManagerChild::IdentifyTextureHost(mTextureFactoryIdentifier);
+ }
+
+ mRemoteFrame = remoteFrame;
+ if (aLayersId != 0) {
+ if (!sTabChildren) {
+ sTabChildren = new TabChildMap;
+ }
+ MOZ_ASSERT(!sTabChildren->Get(aLayersId));
+ sTabChildren->Put(aLayersId, this);
+ mLayersId = aLayersId;
+ }
+
+ mApzcTreeManager = CompositorBridgeChild::Get()->GetAPZCTreeManager(mLayersId);
+
+ nsCOMPtr<nsIObserverService> observerService =
+ mozilla::services::GetObserverService();
+
+ if (observerService) {
+ observerService->AddObserver(this,
+ BEFORE_FIRST_PAINT,
+ false);
+ }
+ return true;
+}
+
+void
+TabChild::GetDPI(float* aDPI)
+{
+ *aDPI = -1.0;
+ if (!mRemoteFrame) {
+ return;
+ }
+
+ if (mDPI > 0) {
+ *aDPI = mDPI;
+ return;
+ }
+
+ // Fallback to a sync call if needed.
+ SendGetDPI(aDPI);
+}
+
+void
+TabChild::GetDefaultScale(double* aScale)
+{
+ *aScale = -1.0;
+ if (!mRemoteFrame) {
+ return;
+ }
+
+ if (mDefaultScale > 0) {
+ *aScale = mDefaultScale;
+ return;
+ }
+
+ // Fallback to a sync call if needed.
+ SendGetDefaultScale(aScale);
+}
+
+void
+TabChild::GetWidgetRounding(int32_t* aRounding)
+{
+ *aRounding = 1;
+ if (!mRemoteFrame) {
+ return;
+ }
+ if (mRounding > 0) {
+ *aRounding = mRounding;
+ return;
+ }
+
+ // Fallback to a sync call if needed.
+ SendGetWidgetRounding(aRounding);
+}
+
+void
+TabChild::GetMaxTouchPoints(uint32_t* aTouchPoints)
+{
+ // Fallback to a sync call.
+ SendGetMaxTouchPoints(aTouchPoints);
+}
+
+void
+TabChild::NotifyPainted()
+{
+ if (!mNotified) {
+ mRemoteFrame->SendNotifyCompositorTransaction();
+ mNotified = true;
+ }
+}
+
+void
+TabChild::MakeVisible()
+{
+ if (mPuppetWidget && mPuppetWidget->IsVisible()) {
+ return;
+ }
+
+ if (mPuppetWidget) {
+ mPuppetWidget->Show(true);
+ }
+}
+
+void
+TabChild::MakeHidden()
+{
+ if (mPuppetWidget && !mPuppetWidget->IsVisible()) {
+ return;
+ }
+
+ CompositorBridgeChild* compositor = CompositorBridgeChild::Get();
+
+ // Clear cached resources directly. This avoids one extra IPC
+ // round-trip from CompositorBridgeChild to CompositorBridgeParent.
+ compositor->RecvClearCachedResources(mLayersId);
+
+ if (mPuppetWidget) {
+ mPuppetWidget->Show(false);
+ }
+}
+
+NS_IMETHODIMP
+TabChild::GetMessageManager(nsIContentFrameMessageManager** aResult)
+{
+ if (mTabChildGlobal) {
+ NS_ADDREF(*aResult = mTabChildGlobal);
+ return NS_OK;
+ }
+ *aResult = nullptr;
+ return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+TabChild::GetWebBrowserChrome(nsIWebBrowserChrome3** aWebBrowserChrome)
+{
+ NS_IF_ADDREF(*aWebBrowserChrome = mWebBrowserChrome);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::SetWebBrowserChrome(nsIWebBrowserChrome3* aWebBrowserChrome)
+{
+ mWebBrowserChrome = aWebBrowserChrome;
+ return NS_OK;
+}
+
+void
+TabChild::SendRequestFocus(bool aCanFocus)
+{
+ PBrowserChild::SendRequestFocus(aCanFocus);
+}
+
+void
+TabChild::SendGetTabCount(uint32_t* tabCount)
+{
+ PBrowserChild::SendGetTabCount(tabCount);
+}
+
+void
+TabChild::EnableDisableCommands(const nsAString& aAction,
+ nsTArray<nsCString>& aEnabledCommands,
+ nsTArray<nsCString>& aDisabledCommands)
+{
+ PBrowserChild::SendEnableDisableCommands(PromiseFlatString(aAction),
+ aEnabledCommands, aDisabledCommands);
+}
+
+NS_IMETHODIMP
+TabChild::GetTabId(uint64_t* aId)
+{
+ *aId = GetTabId();
+ return NS_OK;
+}
+
+void
+TabChild::SetTabId(const TabId& aTabId)
+{
+ MOZ_ASSERT(mUniqueId == 0);
+
+ mUniqueId = aTabId;
+ NestedTabChildMap()[mUniqueId] = this;
+}
+
+bool
+TabChild::DoSendBlockingMessage(JSContext* aCx,
+ const nsAString& aMessage,
+ StructuredCloneData& aData,
+ JS::Handle<JSObject *> aCpows,
+ nsIPrincipal* aPrincipal,
+ nsTArray<StructuredCloneData>* aRetVal,
+ bool aIsSync)
+{
+ ClonedMessageData data;
+ if (!BuildClonedMessageDataForChild(Manager(), aData, data)) {
+ return false;
+ }
+ InfallibleTArray<CpowEntry> cpows;
+ if (aCpows && !Manager()->GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
+ return false;
+ }
+ if (aIsSync) {
+ return SendSyncMessage(PromiseFlatString(aMessage), data, cpows,
+ Principal(aPrincipal), aRetVal);
+ }
+
+ return SendRpcMessage(PromiseFlatString(aMessage), data, cpows,
+ Principal(aPrincipal), aRetVal);
+}
+
+nsresult
+TabChild::DoSendAsyncMessage(JSContext* aCx,
+ const nsAString& aMessage,
+ StructuredCloneData& aData,
+ JS::Handle<JSObject *> aCpows,
+ nsIPrincipal* aPrincipal)
+{
+ ClonedMessageData data;
+ if (!BuildClonedMessageDataForChild(Manager(), aData, data)) {
+ return NS_ERROR_DOM_DATA_CLONE_ERR;
+ }
+ InfallibleTArray<CpowEntry> cpows;
+ if (aCpows && !Manager()->GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
+ return NS_ERROR_UNEXPECTED;
+ }
+ if (!SendAsyncMessage(PromiseFlatString(aMessage), cpows,
+ Principal(aPrincipal), data)) {
+ return NS_ERROR_UNEXPECTED;
+ }
+ return NS_OK;
+}
+
+/* static */ nsTArray<RefPtr<TabChild>>
+TabChild::GetAll()
+{
+ nsTArray<RefPtr<TabChild>> list;
+ if (!sTabChildren) {
+ return list;
+ }
+
+ for (auto iter = sTabChildren->Iter(); !iter.Done(); iter.Next()) {
+ list.AppendElement(iter.Data());
+ }
+
+ return list;
+}
+
+TabChild*
+TabChild::GetFrom(nsIPresShell* aPresShell)
+{
+ nsIDocument* doc = aPresShell->GetDocument();
+ if (!doc) {
+ return nullptr;
+ }
+ nsCOMPtr<nsIDocShell> docShell(doc->GetDocShell());
+ return GetFrom(docShell);
+}
+
+TabChild*
+TabChild::GetFrom(uint64_t aLayersId)
+{
+ if (!sTabChildren) {
+ return nullptr;
+ }
+ return sTabChildren->Get(aLayersId);
+}
+
+void
+TabChild::DidComposite(uint64_t aTransactionId,
+ const TimeStamp& aCompositeStart,
+ const TimeStamp& aCompositeEnd)
+{
+ MOZ_ASSERT(mPuppetWidget);
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager());
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() ==
+ LayersBackend::LAYERS_CLIENT);
+
+ RefPtr<ClientLayerManager> manager = mPuppetWidget->GetLayerManager()->AsClientLayerManager();
+
+ manager->DidComposite(aTransactionId, aCompositeStart, aCompositeEnd);
+}
+
+void
+TabChild::DidRequestComposite(const TimeStamp& aCompositeReqStart,
+ const TimeStamp& aCompositeReqEnd)
+{
+ nsCOMPtr<nsIDocShell> docShellComPtr = do_GetInterface(WebNavigation());
+ if (!docShellComPtr) {
+ return;
+ }
+
+ nsDocShell* docShell = static_cast<nsDocShell*>(docShellComPtr.get());
+ RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
+
+ if (timelines && timelines->HasConsumer(docShell)) {
+ // Since we're assuming that it's impossible for content JS to directly
+ // trigger a synchronous paint, we can avoid capturing a stack trace here,
+ // which means we won't run into JS engine reentrancy issues like bug
+ // 1310014.
+ timelines->AddMarkerForDocShell(docShell,
+ "CompositeForwardTransaction", aCompositeReqStart,
+ MarkerTracingType::START, MarkerStackRequest::NO_STACK);
+ timelines->AddMarkerForDocShell(docShell,
+ "CompositeForwardTransaction", aCompositeReqEnd,
+ MarkerTracingType::END, MarkerStackRequest::NO_STACK);
+ }
+}
+
+void
+TabChild::ClearCachedResources()
+{
+ MOZ_ASSERT(mPuppetWidget);
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager());
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() ==
+ LayersBackend::LAYERS_CLIENT);
+
+ ClientLayerManager *manager = mPuppetWidget->GetLayerManager()->AsClientLayerManager();
+ manager->ClearCachedResources();
+}
+
+void
+TabChild::InvalidateLayers()
+{
+ MOZ_ASSERT(mPuppetWidget);
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager());
+ MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() ==
+ LayersBackend::LAYERS_CLIENT);
+
+ RefPtr<LayerManager> lm = mPuppetWidget->GetLayerManager();
+ FrameLayerBuilder::InvalidateAllLayers(lm);
+}
+
+void
+TabChild::ReinitRendering()
+{
+ MOZ_ASSERT(mLayersId);
+
+ // Before we establish a new PLayerTransaction, we must connect our layer tree
+ // id, CompositorBridge, and the widget compositor all together again.
+ // Normally this happens in TabParent before TabChild is given rendering
+ // information.
+ //
+ // In this case, we will send a sync message to our TabParent, which in turn
+ // will send a sync message to the Compositor of the widget owning this tab.
+ // This guarantees the correct association is in place before our
+ // PLayerTransaction constructor message arrives on the cross-process
+ // compositor bridge.
+ SendEnsureLayersConnected();
+
+ RefPtr<CompositorBridgeChild> cb = CompositorBridgeChild::Get();
+
+ bool success;
+ nsTArray<LayersBackend> ignored;
+ PLayerTransactionChild* shadowManager =
+ cb->SendPLayerTransactionConstructor(ignored, LayersId(), &mTextureFactoryIdentifier, &success);
+ if (!success) {
+ NS_WARNING("failed to re-allocate layer transaction");
+ return;
+ }
+
+ if (!shadowManager) {
+ NS_WARNING("failed to re-construct LayersChild");
+ return;
+ }
+
+ RefPtr<LayerManager> lm = mPuppetWidget->RecreateLayerManager(shadowManager);
+ ShadowLayerForwarder* lf = lm->AsShadowForwarder();
+ lf->IdentifyTextureHost(mTextureFactoryIdentifier);
+
+ mApzcTreeManager = CompositorBridgeChild::Get()->GetAPZCTreeManager(mLayersId);
+ if (mApzcTreeManager) {
+ APZChild* apz = ContentProcessController::Create(mUniqueId);
+ CompositorBridgeChild::Get()->SendPAPZConstructor(apz, mLayersId);
+ }
+
+ nsCOMPtr<nsIDocument> doc(GetDocument());
+ doc->NotifyLayerManagerRecreated();
+}
+
+void
+TabChild::CompositorUpdated(const TextureFactoryIdentifier& aNewIdentifier)
+{
+ gfxPlatform::GetPlatform()->CompositorUpdated();
+
+ RefPtr<LayerManager> lm = mPuppetWidget->GetLayerManager();
+ ClientLayerManager* clm = lm->AsClientLayerManager();
+ MOZ_ASSERT(clm);
+
+ mTextureFactoryIdentifier = aNewIdentifier;
+ clm->UpdateTextureFactoryIdentifier(aNewIdentifier);
+ FrameLayerBuilder::InvalidateAllLayers(clm);
+}
+
+NS_IMETHODIMP
+TabChild::OnShowTooltip(int32_t aXCoords, int32_t aYCoords, const char16_t *aTipText,
+ const char16_t *aTipDir)
+{
+ nsString str(aTipText);
+ nsString dir(aTipDir);
+ SendShowTooltip(aXCoords, aYCoords, str, dir);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::OnHideTooltip()
+{
+ SendHideTooltip();
+ return NS_OK;
+}
+
+bool
+TabChild::RecvRequestNotifyAfterRemotePaint()
+{
+ // Get the CompositorBridgeChild instance for this content thread.
+ CompositorBridgeChild* compositor = CompositorBridgeChild::Get();
+
+ // Tell the CompositorBridgeChild that, when it gets a RemotePaintIsReady
+ // message that it should forward it us so that we can bounce it to our
+ // RenderFrameParent.
+ compositor->RequestNotifyAfterRemotePaint(this);
+ return true;
+}
+
+bool
+TabChild::RecvUIResolutionChanged(const float& aDpi,
+ const int32_t& aRounding,
+ const double& aScale)
+{
+ ScreenIntSize oldScreenSize = GetInnerSize();
+ mDPI = 0;
+ mRounding = 0;
+ mDefaultScale = 0;
+ static_cast<PuppetWidget*>(mPuppetWidget.get())->UpdateBackingScaleCache(aDpi, aRounding, aScale);
+ nsCOMPtr<nsIDocument> document(GetDocument());
+ nsCOMPtr<nsIPresShell> presShell = document->GetShell();
+ if (presShell) {
+ RefPtr<nsPresContext> presContext = presShell->GetPresContext();
+ if (presContext) {
+ presContext->UIResolutionChangedSync();
+ }
+ }
+
+ ScreenIntSize screenSize = GetInnerSize();
+ if (mHasValidInnerSize && oldScreenSize != screenSize) {
+ ScreenIntRect screenRect = GetOuterRect();
+ mPuppetWidget->Resize(screenRect.x + mClientOffset.x + mChromeDisp.x,
+ screenRect.y + mClientOffset.y + mChromeDisp.y,
+ screenSize.width, screenSize.height, true);
+
+ nsCOMPtr<nsIBaseWindow> baseWin = do_QueryInterface(WebNavigation());
+ baseWin->SetPositionAndSize(0, 0, screenSize.width, screenSize.height,
+ nsIBaseWindow::eRepaint);
+ }
+
+ return true;
+}
+
+bool
+TabChild::RecvThemeChanged(nsTArray<LookAndFeelInt>&& aLookAndFeelIntCache)
+{
+ LookAndFeel::SetIntCache(aLookAndFeelIntCache);
+ nsCOMPtr<nsIDocument> document(GetDocument());
+ nsCOMPtr<nsIPresShell> presShell = document->GetShell();
+ if (presShell) {
+ RefPtr<nsPresContext> presContext = presShell->GetPresContext();
+ if (presContext) {
+ presContext->ThemeChanged();
+ }
+ }
+ return true;
+}
+
+bool
+TabChild::RecvSetFreshProcess()
+{
+ mIsFreshProcess = true;
+ return true;
+}
+
+mozilla::plugins::PPluginWidgetChild*
+TabChild::AllocPPluginWidgetChild()
+{
+ return new mozilla::plugins::PluginWidgetChild();
+}
+
+bool
+TabChild::DeallocPPluginWidgetChild(mozilla::plugins::PPluginWidgetChild* aActor)
+{
+ delete aActor;
+ return true;
+}
+
+nsresult
+TabChild::CreatePluginWidget(nsIWidget* aParent, nsIWidget** aOut)
+{
+ *aOut = nullptr;
+ mozilla::plugins::PluginWidgetChild* child =
+ static_cast<mozilla::plugins::PluginWidgetChild*>(SendPPluginWidgetConstructor());
+ if (!child) {
+ NS_ERROR("couldn't create PluginWidgetChild");
+ return NS_ERROR_UNEXPECTED;
+ }
+ nsCOMPtr<nsIWidget> pluginWidget = nsIWidget::CreatePluginProxyWidget(this, child);
+ if (!pluginWidget) {
+ NS_ERROR("couldn't create PluginWidgetProxy");
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ nsWidgetInitData initData;
+ initData.mWindowType = eWindowType_plugin_ipc_content;
+ initData.mUnicode = false;
+ initData.clipChildren = true;
+ initData.clipSiblings = true;
+ nsresult rv = pluginWidget->Create(aParent, nullptr,
+ LayoutDeviceIntRect(0, 0, 0, 0),
+ &initData);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Creating native plugin widget on the chrome side failed.");
+ }
+ pluginWidget.forget(aOut);
+ return rv;
+}
+
+ScreenIntSize
+TabChild::GetInnerSize()
+{
+ LayoutDeviceIntSize innerSize =
+ RoundedToInt(mUnscaledInnerSize * mPuppetWidget->GetDefaultScale());
+ return ViewAs<ScreenPixel>(innerSize, PixelCastJustification::LayoutDeviceIsScreenForTabDims);
+};
+
+ScreenIntRect
+TabChild::GetOuterRect()
+{
+ LayoutDeviceIntRect outerRect =
+ RoundedToInt(mUnscaledOuterRect * mPuppetWidget->GetDefaultScale());
+ return ViewAs<ScreenPixel>(outerRect, PixelCastJustification::LayoutDeviceIsScreenForTabDims);
+}
+
+void
+TabChild::ForcePaint(uint64_t aLayerObserverEpoch)
+{
+ if (!IPCOpen()) {
+ // Don't bother doing anything now. Better to wait until we receive the
+ // message on the PContent channel.
+ return;
+ }
+
+ nsAutoScriptBlocker scriptBlocker;
+ RecvSetDocShellIsActive(true, false, aLayerObserverEpoch);
+}
+
+/*******************************************************************************
+ * nsISHistoryListener
+ ******************************************************************************/
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnHistoryNewEntry(nsIURI *aNewURI, int32_t aOldIndex)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnHistoryGoBack(nsIURI *aBackURI, bool *_retval)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnHistoryGoForward(nsIURI *aForwardURI, bool *_retval)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnHistoryReload(nsIURI *aReloadURI, uint32_t aReloadFlags, bool *_retval)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnHistoryGotoIndex(int32_t aIndex, nsIURI *aGotoURI, bool *_retval)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnHistoryPurge(int32_t aNumEntries, bool *_retval)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnHistoryReplaceEntry(int32_t aIndex)
+{
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnLengthChange(int32_t aCount)
+{
+ RefPtr<TabChild> tabChild(mTabChild);
+ if (!tabChild) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (aCount < 0) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return tabChild->SendNotifySessionHistoryChange(aCount) ?
+ NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+TabChildSHistoryListener::OnRequestCrossBrowserNavigation(uint32_t aIndex)
+{
+ RefPtr<TabChild> tabChild(mTabChild);
+ if (!tabChild) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return tabChild->SendRequestCrossBrowserNavigation(aIndex) ?
+ NS_OK : NS_ERROR_FAILURE;
+}
+
+TabChildGlobal::TabChildGlobal(TabChildBase* aTabChild)
+: mTabChild(aTabChild)
+{
+ SetIsNotDOMBinding();
+}
+
+TabChildGlobal::~TabChildGlobal()
+{
+}
+
+void
+TabChildGlobal::Init()
+{
+ NS_ASSERTION(!mMessageManager, "Re-initializing?!?");
+ mMessageManager = new nsFrameMessageManager(mTabChild,
+ nullptr,
+ MM_CHILD);
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(TabChildGlobal)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(TabChildGlobal,
+ DOMEventTargetHelper)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mMessageManager);
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mTabChild);
+ tmp->UnlinkHostObjectURIs();
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(TabChildGlobal,
+ DOMEventTargetHelper)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMessageManager)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTabChild)
+ tmp->TraverseHostObjectURIs(cb);
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TabChildGlobal)
+ NS_INTERFACE_MAP_ENTRY(nsIMessageListenerManager)
+ NS_INTERFACE_MAP_ENTRY(nsIMessageSender)
+ NS_INTERFACE_MAP_ENTRY(nsISyncMessageSender)
+ NS_INTERFACE_MAP_ENTRY(nsIContentFrameMessageManager)
+ NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
+ NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(ContentFrameMessageManager)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+NS_IMPL_ADDREF_INHERITED(TabChildGlobal, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(TabChildGlobal, DOMEventTargetHelper)
+
+// This method isn't automatically forwarded safely because it's notxpcom, so
+// the IDL binding doesn't know what value to return.
+NS_IMETHODIMP_(bool)
+TabChildGlobal::MarkForCC()
+{
+ if (mTabChild) {
+ mTabChild->MarkScopesForCC();
+ }
+ EventListenerManager* elm = GetExistingListenerManager();
+ if (elm) {
+ elm->MarkForCC();
+ }
+ return mMessageManager ? mMessageManager->MarkForCC() : false;
+}
+
+NS_IMETHODIMP
+TabChildGlobal::GetContent(mozIDOMWindowProxy** aContent)
+{
+ *aContent = nullptr;
+ if (!mTabChild)
+ return NS_ERROR_NULL_POINTER;
+ nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(mTabChild->WebNavigation());
+ window.forget(aContent);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChildGlobal::GetDocShell(nsIDocShell** aDocShell)
+{
+ *aDocShell = nullptr;
+ if (!mTabChild)
+ return NS_ERROR_NULL_POINTER;
+ nsCOMPtr<nsIDocShell> docShell = do_GetInterface(mTabChild->WebNavigation());
+ docShell.swap(*aDocShell);
+ return NS_OK;
+}
+
+nsIPrincipal*
+TabChildGlobal::GetPrincipal()
+{
+ if (!mTabChild)
+ return nullptr;
+ return mTabChild->GetPrincipal();
+}
+
+JSObject*
+TabChildGlobal::GetGlobalJSObject()
+{
+ NS_ENSURE_TRUE(mTabChild, nullptr);
+ nsCOMPtr<nsIXPConnectJSObjectHolder> ref = mTabChild->GetGlobal();
+ NS_ENSURE_TRUE(ref, nullptr);
+ return ref->GetJSObject();
+}