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872f694c63
gecko-dev/dom/ipc/TabChild.cpp
Masayuki Nakano 872f694c63 Bug 1339543 part 4 Change nsIWidget::ExecuteNativeKeyBinding() to nsIWidget::GetEditCommands() which just retrieves edit commands for the type r=smaug 
Now, nsIWidget::ExecuteNativeKeyBinding() isn't used by anybody for executing
edit commands.  Instead, they need array of edit commands for the key
combination.  So, the method should be renamed to GetEditCommands() and just
return edit commands as an array.

MozReview-Commit-ID: 4G0B1lJ8Lbe

--HG--
extra : rebase_source : 4a5829281d59677c773950c34d91a1cd8074d243
2017-05-19 17:49:41 +09:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "base/basictypes.h"
#include "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/dom/TelemetryScrollProbe.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/APZCTreeManagerChild.h"
#include "mozilla/layers/APZEventState.h"
#include "mozilla/layers/ContentProcessController.h"
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/layers/DoubleTapToZoom.h"
#include "mozilla/layers/IAPZCTreeManager.h"
#include "mozilla/layers/ImageBridgeChild.h"
#include "mozilla/layers/InputAPZContext.h"
#include "mozilla/layers/PLayerTransactionChild.h"
#include "mozilla/layers/ShadowLayers.h"
#include "mozilla/layers/WebRenderLayerManager.h"
#include "mozilla/layout/RenderFrameChild.h"
#include "mozilla/layout/RenderFrameParent.h"
#include "mozilla/plugins/PPluginWidgetChild.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/Move.h"
#include "mozilla/PresShell.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 "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 "nsContentPermissionHelper.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"
#include "nsString.h"
#include "nsISupportsPrimitives.h"
#include "mozilla/Telemetry.h"
#ifdef XP_WIN
#include "mozilla/plugins/PluginWidgetChild.h"
#endif
#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 char BEFORE_FIRST_PAINT[] = "before-first-paint";
typedef nsDataHashtable<nsUint64HashKey, TabChild*> TabChildMap;
static TabChildMap* sTabChildren;
StaticMutex sTabChildrenMutex;
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)
tmp->nsMessageManagerScriptExecutor::Unlink();
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(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());
dom::ipc::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;
}
}
JS::Rooted<JSObject*> kungFuDeathGrip(cx, 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)
: Runnable("TabChild::DelayedDeleteRunnable")
, 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 {
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*/ already_AddRefed<TabChild>
TabChild::Create(nsIContentChild* aManager,
const TabId& aTabId,
const TabId& aSameTabGroupAs,
const TabContext &aContext,
uint32_t aChromeFlags)
{
RefPtr<TabChild> groupChild = FindTabChild(aSameTabGroupAs);
dom::TabGroup* group = groupChild ? groupChild->TabGroup() : nullptr;
RefPtr<TabChild> iframe = new TabChild(aManager, aTabId, group,
aContext, aChromeFlags);
return iframe.forget();
}
TabChild::TabChild(nsIContentChild* aManager,
const TabId& aTabId,
dom::TabGroup* aTabGroup,
const TabContext& aContext,
uint32_t aChromeFlags)
: TabContext(aContext)
, mTabGroup(aTabGroup)
, mRemoteFrame(nullptr)
, mManager(aManager)
, mChromeFlags(aChromeFlags)
, mActiveSuppressDisplayport(0)
, mLayersId(0)
, mBeforeUnloadListeners(0)
, mLayersConnected(true)
, 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)
, mAwaitingLA(false)
, mSkipKeyPress(false)
, mLayerObserverEpoch(0)
#if defined(XP_WIN) && defined(ACCESSIBILITY)
, mNativeWindowHandle(0)
#endif
#if defined(ACCESSIBILITY)
, mTopLevelDocAccessibleChild(nullptr)
#endif
{
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);
}
}
bool
TabChild::AsyncPanZoomEnabled() const
{
// By the time anybody calls this, we must have had InitRenderingState called
// already, and so mCompositorOptions should be populated.
MOZ_RELEASE_ASSERT(mCompositorOptions);
return mCompositorOptions->UseAPZ();
}
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 = %" PRIu64 ", "
"ID from wrapper = %" PRIu64, 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 (!mApzcTreeManager) {
return false;
}
ScrollableLayerGuid guid = ScrollableLayerGuid(mLayersId, aPresShellId, aViewId);
mApzcTreeManager->UpdateZoomConstraints(guid, aConstraints);
return true;
}
nsresult
TabChild::Init()
{
if (!mTabGroup) {
mTabGroup = TabGroup::GetFromActor(this);
}
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 = GetRelatedSHistory();
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 :
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> and this isn't a request to
// open a modal-type window, we're going to create a new <iframe mozbrowser>
// and return its window here.
nsCOMPtr<nsIDocShell> docshell = do_GetInterface(aParent);
bool iframeMoz = (docshell && docshell->GetIsInMozBrowser() &&
!(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) {
StaticMutexAutoLock lock(sTabChildrenMutex);
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();
}
}
mozilla::ipc::IPCResult
TabChild::RecvLoadURL(const nsCString& aURI,
const ShowInfo& aInfo)
{
if (!mDidLoadURLInit) {
mDidLoadURLInit = true;
if (!InitTabChildGlobal()) {
return IPC_FAIL_NO_REASON(this);
}
ApplyShowInfo(aInfo);
}
nsresult rv =
WebNavigation()->LoadURI(NS_ConvertUTF8toUTF16(aURI).get(),
nsIWebNavigation::LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP |
nsIWebNavigation::LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL,
nullptr, nullptr, nullptr, nsContentUtils::GetSystemPrincipal());
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 IPC_OK();
}
void
TabChild::DoFakeShow(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
const CompositorOptions& aCompositorOptions,
PRenderFrameChild* aRenderFrame, const ShowInfo& aShowInfo)
{
InitRenderingState(aTextureFactoryIdentifier, aLayersId, aCompositorOptions, aRenderFrame);
RecvShow(ScreenIntSize(0, 0), aShowInfo, 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 (IsMozBrowser()) {
// 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 {
OriginAttributes 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();
}
mozilla::ipc::IPCResult
TabChild::RecvShow(const ScreenIntSize& aSize,
const ShowInfo& aInfo,
const bool& aParentIsActive,
const nsSizeMode& aSizeMode)
{
bool res = true;
mPuppetWidget->SetSizeMode(aSizeMode);
if (!mDidFakeShow) {
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
if (!baseWindow) {
NS_ERROR("WebNavigation() doesn't QI to nsIBaseWindow");
return IPC_FAIL_NO_REASON(this);
}
baseWindow->SetVisibility(true);
res = InitTabChildGlobal();
}
ApplyShowInfo(aInfo);
RecvParentActivated(aParentIsActive);
if (!res) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvInitRendering(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
const CompositorOptions& aCompositorOptions,
const bool& aLayersConnected,
PRenderFrameChild* aRenderFrame)
{
MOZ_ASSERT((!mDidFakeShow && aRenderFrame) || (mDidFakeShow && !aRenderFrame));
mLayersConnected = aLayersConnected;
InitRenderingState(aTextureFactoryIdentifier, aLayersId, aCompositorOptions, aRenderFrame);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvUpdateDimensions(const CSSRect& rect, const CSSSize& size,
const ScreenOrientationInternal& orientation,
const LayoutDeviceIntPoint& clientOffset,
const LayoutDeviceIntPoint& chromeDisp)
{
if (!mRemoteFrame) {
return IPC_OK();
}
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 IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvSizeModeChanged(const nsSizeMode& aSizeMode)
{
mPuppetWidget->SetSizeMode(aSizeMode);
if (!mPuppetWidget->IsVisible()) {
return IPC_OK();
}
nsCOMPtr<nsIDocument> document(GetDocument());
nsCOMPtr<nsIPresShell> presShell = document->GetShell();
if (presShell) {
nsPresContext* presContext = presShell->GetPresContext();
if (presContext) {
presContext->SizeModeChanged(aSizeMode);
}
}
return IPC_OK();
}
bool
TabChild::UpdateFrame(const FrameMetrics& aFrameMetrics)
{
return TabChildBase::UpdateFrameHandler(aFrameMetrics);
}
mozilla::ipc::IPCResult
TabChild::RecvSuppressDisplayport(const bool& aEnabled)
{
if (aEnabled) {
mActiveSuppressDisplayport++;
} else {
mActiveSuppressDisplayport--;
}
MOZ_ASSERT(mActiveSuppressDisplayport >= 0);
APZCCallbackHelper::SuppressDisplayport(aEnabled, GetPresShell());
return IPC_OK();
}
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);
}
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
if (!presShell->GetPresContext()) {
return IPC_OK();
}
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 IPC_OK();
}
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);
}
}
mozilla::ipc::IPCResult
TabChild::RecvActivate()
{
nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
browser->Activate();
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvDeactivate()
{
nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
browser->Deactivate();
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvParentActivated(const bool& aActivated)
{
mParentIsActive = aActivated;
nsFocusManager* fm = nsFocusManager::GetFocusManager();
NS_ENSURE_TRUE(fm, IPC_OK());
nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
fm->ParentActivated(window, aActivated);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvSetKeyboardIndicators(const UIStateChangeType& aShowAccelerators,
const UIStateChangeType& aShowFocusRings)
{
nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, IPC_OK());
window->SetKeyboardIndicators(aShowAccelerators, aShowFocusRings);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvStopIMEStateManagement()
{
IMEStateManager::StopIMEStateManagement();
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvMenuKeyboardListenerInstalled(const bool& aInstalled)
{
IMEStateManager::OnInstalledMenuKeyboardListener(aInstalled);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvNotifyAttachGroupedSHistory(const uint32_t& aOffset)
{
// nsISHistory uses int32_t
if (NS_WARN_IF(aOffset > INT32_MAX)) {
return IPC_FAIL_NO_REASON(this);
}
nsCOMPtr<nsISHistory> shistory = GetRelatedSHistory();
NS_ENSURE_TRUE(shistory, IPC_FAIL_NO_REASON(this));
if (NS_FAILED(shistory->OnAttachGroupedSHistory(aOffset))) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvNotifyPartialSHistoryActive(const uint32_t& aGlobalLength,
const uint32_t& aTargetLocalIndex)
{
// nsISHistory uses int32_t
if (NS_WARN_IF(aGlobalLength > INT32_MAX || aTargetLocalIndex > INT32_MAX)) {
return IPC_FAIL_NO_REASON(this);
}
nsCOMPtr<nsISHistory> shistory = GetRelatedSHistory();
NS_ENSURE_TRUE(shistory, IPC_FAIL_NO_REASON(this));
if (NS_FAILED(shistory->OnPartialSHistoryActive(aGlobalLength,
aTargetLocalIndex))) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvNotifyPartialSHistoryDeactive()
{
nsCOMPtr<nsISHistory> shistory = GetRelatedSHistory();
NS_ENSURE_TRUE(shistory, IPC_FAIL_NO_REASON(this));
if (NS_FAILED(shistory->OnPartialSHistoryDeactive())) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
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,
0 /* Use the default value here. */);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvRealMouseMoveEvent(const WidgetMouseEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
if (!RecvRealMouseButtonEvent(aEvent, aGuid, aInputBlockId)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvSynthMouseMoveEvent(const WidgetMouseEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
if (!RecvRealMouseButtonEvent(aEvent, aGuid, aInputBlockId)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
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.
bool pendingLayerization = false;
if (aInputBlockId && aEvent.mFlags.mHandledByAPZ) {
nsCOMPtr<nsIDocument> document(GetDocument());
pendingLayerization =
APZCCallbackHelper::SendSetTargetAPZCNotification(mPuppetWidget, document,
aEvent, aGuid,
aInputBlockId);
}
nsEventStatus unused;
InputAPZContext context(aGuid, aInputBlockId, unused);
if (pendingLayerization) {
context.SetPendingLayerization();
}
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 IPC_OK();
}
// In case handling repeated mouse wheel takes much time, we skip firing current
// wheel event if it may be coalesced to the next one.
bool
TabChild::MaybeCoalesceWheelEvent(const WidgetWheelEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId,
bool* aIsNextWheelEvent)
{
MOZ_ASSERT(aIsNextWheelEvent);
if (aEvent.mMessage == eWheel) {
GetIPCChannel()->PeekMessages(
[aIsNextWheelEvent](const IPC::Message& aMsg) -> bool {
if (aMsg.type() == mozilla::dom::PBrowser::Msg_MouseWheelEvent__ID) {
*aIsNextWheelEvent = true;
}
return false; // Stop peeking.
});
// We only coalesce the current event when
// 1. It's eWheel (we don't coalesce eOperationStart and eWheelOperationEnd)
// 2. It's not the first wheel event.
// 3. It's not the last wheel event.
// 4. It's dispatched before the last wheel event was processed +
// the processing time of the last event.
// This way pages spending lots of time in wheel listeners get wheel
// events coalesced more aggressively.
// 5. It has same attributes as the coalesced wheel event which is not yet
// fired.
if (!mLastWheelProcessedTimeFromParent.IsNull() &&
*aIsNextWheelEvent &&
aEvent.mTimeStamp < (mLastWheelProcessedTimeFromParent +
mLastWheelProcessingDuration) &&
(mCoalescedWheelData.IsEmpty() ||
mCoalescedWheelData.CanCoalesce(aEvent, aGuid, aInputBlockId))) {
mCoalescedWheelData.Coalesce(aEvent, aGuid, aInputBlockId);
return true;
}
}
return false;
}
void
TabChild::MaybeDispatchCoalescedWheelEvent()
{
if (mCoalescedWheelData.IsEmpty()) {
return;
}
const WidgetWheelEvent* wheelEvent =
mCoalescedWheelData.GetCoalescedWheelEvent();
MOZ_ASSERT(wheelEvent);
DispatchWheelEvent(*wheelEvent,
mCoalescedWheelData.GetScrollableLayerGuid(),
mCoalescedWheelData.GetInputBlockId());
mCoalescedWheelData.Reset();
}
void
TabChild::DispatchWheelEvent(const WidgetWheelEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
WidgetWheelEvent localEvent(aEvent);
if (aInputBlockId && aEvent.mFlags.mHandledByAPZ) {
nsCOMPtr<nsIDocument> document(GetDocument());
APZCCallbackHelper::SendSetTargetAPZCNotification(
mPuppetWidget, document, aEvent, aGuid, aInputBlockId);
}
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);
}
}
mozilla::ipc::IPCResult
TabChild::RecvMouseWheelEvent(const WidgetWheelEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
bool isNextWheelEvent = false;
if (MaybeCoalesceWheelEvent(aEvent, aGuid, aInputBlockId,
&isNextWheelEvent)) {
return IPC_OK();
}
if (isNextWheelEvent) {
// Update mLastWheelProcessedTimeFromParent so that we can compare the end
// time of the current event with the dispatched time of the next event.
mLastWheelProcessedTimeFromParent = aEvent.mTimeStamp;
mozilla::TimeStamp beforeDispatchingTime = TimeStamp::Now();
MaybeDispatchCoalescedWheelEvent();
DispatchWheelEvent(aEvent, aGuid, aInputBlockId);
mLastWheelProcessingDuration = (TimeStamp::Now() - beforeDispatchingTime);
mLastWheelProcessedTimeFromParent += mLastWheelProcessingDuration;
} else {
// This is the last wheel event. Set mLastWheelProcessedTimeFromParent to
// null moment to avoid coalesce the next incoming wheel event.
mLastWheelProcessedTimeFromParent = TimeStamp();
MaybeDispatchCoalescedWheelEvent();
DispatchWheelEvent(aEvent, aGuid, aInputBlockId);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mAPZEventState->ProcessTouchEvent(localEvent, aGuid, aInputBlockId,
aApzResponse, status);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvRealTouchMoveEvent(const WidgetTouchEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId,
const nsEventStatus& aApzResponse)
{
if (!RecvRealTouchEvent(aEvent, aGuid, aInputBlockId, aApzResponse)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
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, aEvent.mModifiers);
}
}
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
return IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
void
TabChild::RequestNativeKeyBindings(nsIWidget::NativeKeyBindingsType aType,
const WidgetKeyboardEvent& aEvent,
nsTArray<CommandInt>& aCommands)
{
MOZ_ASSERT(aCommands.IsEmpty());
if (NS_WARN_IF(aEvent.IsEditCommandsInitialized(aType))) {
aCommands = aEvent.EditCommandsConstRef(aType);
return;
}
// TODO: Should retrieve edit commands only for specific type.
MaybeNativeKeyBinding maybeBindings;
if (!SendRequestNativeKeyBindings(aEvent, &maybeBindings) ||
maybeBindings.type() != MaybeNativeKeyBinding::TNativeKeyBinding) {
return;
}
const NativeKeyBinding& bindings = maybeBindings;
switch (aType) {
case nsIWidget::NativeKeyBindingsForSingleLineEditor:
aCommands = bindings.singleLineCommands();
break;
case nsIWidget::NativeKeyBindingsForMultiLineEditor:
aCommands = bindings.multiLineCommands();
break;
case nsIWidget::NativeKeyBindingsForRichTextEditor:
aCommands = bindings.richTextCommands();
break;
default:
MOZ_ASSERT_UNREACHABLE("Invalid native key bindings type");
}
}
mozilla::ipc::IPCResult
TabChild::RecvNativeSynthesisResponse(const uint64_t& aObserverId,
const nsCString& aResponse)
{
mozilla::widget::AutoObserverNotifier::NotifySavedObserver(aObserverId,
aResponse.get());
return IPC_OK();
}
// In case handling repeated keys takes much time, we skip firing new ones.
bool
TabChild::SkipRepeatedKeyEvent(const WidgetKeyboardEvent& aEvent)
{
if (mRepeatedKeyEventTime.IsNull() ||
!aEvent.mIsRepeat ||
(aEvent.mMessage != eKeyDown && aEvent.mMessage != eKeyPress)) {
mRepeatedKeyEventTime = TimeStamp();
mSkipKeyPress = false;
return false;
}
if ((aEvent.mMessage == eKeyDown &&
(mRepeatedKeyEventTime > aEvent.mTimeStamp)) ||
(mSkipKeyPress && (aEvent.mMessage == eKeyPress))) {
// If we skip a keydown event, also the following keypress events should be
// skipped.
mSkipKeyPress |= aEvent.mMessage == eKeyDown;
return true;
}
if (aEvent.mMessage == eKeyDown) {
// If keydown wasn't skipped, nor should the possible following keypress.
mRepeatedKeyEventTime = TimeStamp();
mSkipKeyPress = false;
}
return false;
}
void
TabChild::UpdateRepeatedKeyEventEndTime(const WidgetKeyboardEvent& aEvent)
{
if (aEvent.mIsRepeat &&
(aEvent.mMessage == eKeyDown || aEvent.mMessage == eKeyPress)) {
mRepeatedKeyEventTime = TimeStamp::Now();
}
}
mozilla::ipc::IPCResult
TabChild::RecvRealKeyEvent(const WidgetKeyboardEvent& aEvent)
{
if (SkipRepeatedKeyEvent(aEvent)) {
return IPC_OK();
}
MOZ_ASSERT(aEvent.mMessage != eKeyPress ||
aEvent.AreAllEditCommandsInitialized(),
"eKeyPress event should have native key binding information");
// If content code called preventDefault() on a keydown event, then we don't
// want to process any following keypress events.
if (aEvent.mMessage == eKeyPress && mIgnoreKeyPressEvent) {
return IPC_OK();
}
WidgetKeyboardEvent localEvent(aEvent);
localEvent.mWidget = mPuppetWidget;
localEvent.mUniqueId = aEvent.mUniqueId;
nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
// Update the end time of the possible repeated event so that we can skip
// some incoming events in case event handling took long time.
UpdateRepeatedKeyEventEndTime(localEvent);
if (aEvent.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);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvCompositionEvent(const WidgetCompositionEvent& aEvent)
{
WidgetCompositionEvent localEvent(aEvent);
localEvent.mWidget = mPuppetWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
Unused << SendOnEventNeedingAckHandled(aEvent.mMessage);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvSelectionEvent(const WidgetSelectionEvent& aEvent)
{
WidgetSelectionEvent localEvent(aEvent);
localEvent.mWidget = mPuppetWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
Unused << SendOnEventNeedingAckHandled(aEvent.mMessage);
return IPC_OK();
}
mozilla::ipc::IPCResult
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, IPC_OK());
trans->Init(nullptr);
rv = nsContentUtils::IPCTransferableToTransferable(aDataTransfer,
aIsPrivateData,
aRequestingPrincipal,
trans, nullptr, this);
NS_ENSURE_SUCCESS(rv, IPC_OK());
nsCOMPtr<nsIDocShell> ourDocShell = do_GetInterface(WebNavigation());
if (NS_WARN_IF(!ourDocShell)) {
return IPC_OK();
}
nsCOMPtr<nsICommandParams> params =
do_CreateInstance("@mozilla.org/embedcomp/command-params;1", &rv);
NS_ENSURE_SUCCESS(rv, IPC_OK());
rv = params->SetISupportsValue("transferable", trans);
NS_ENSURE_SUCCESS(rv, IPC_OK());
ourDocShell->DoCommandWithParams("cmd_pasteTransferable", params);
return IPC_OK();
}
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;
}
mozilla::ipc::IPCResult
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 IPC_OK(); // silently ignore
nsCOMPtr<mozIDOMWindowProxy> window;
if (NS_FAILED(browser->GetContentDOMWindow(getter_AddRefs(window))) ||
!window)
{
return IPC_OK(); // silently ignore
}
nsCString data;
bool ret = render->RenderDocument(nsPIDOMWindowOuter::From(window),
documentRect, transform,
bgcolor,
renderFlags, flushLayout,
renderSize, data);
if (!ret)
return IPC_OK(); // silently ignore
if (!PDocumentRendererChild::Send__delete__(actor, renderSize, data)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
PColorPickerChild*
TabChild::AllocPColorPickerChild(const nsString&, const nsString&)
{
MOZ_CRASH("unused");
return nullptr;
}
bool
TabChild::DeallocPColorPickerChild(PColorPickerChild* aColorPicker)
{
nsColorPickerProxy* picker = static_cast<nsColorPickerProxy*>(aColorPicker);
NS_RELEASE(picker);
return true;
}
PFilePickerChild*
TabChild::AllocPFilePickerChild(const nsString&, const int16_t&)
{
MOZ_CRASH("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;
}
mozilla::ipc::IPCResult
TabChild::RecvActivateFrameEvent(const nsString& aType, const bool& capture)
{
nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, IPC_OK());
nsCOMPtr<EventTarget> chromeHandler =
do_QueryInterface(window->GetChromeEventHandler());
NS_ENSURE_TRUE(chromeHandler, IPC_OK());
RefPtr<ContentListener> listener = new ContentListener(this);
chromeHandler->AddEventListener(aType, listener, capture);
return IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
LoadScriptInternal(aURL, aRunInGlobalScope);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvAsyncMessage(const nsString& aMessage,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal,
const ClonedMessageData& aData)
{
NS_LossyConvertUTF16toASCII messageNameCStr(aMessage);
PROFILER_LABEL_DYNAMIC("TabChild", "RecvAsyncMessage",
js::ProfileEntry::Category::EVENTS,
messageNameCStr.get());
CrossProcessCpowHolder cpows(Manager(), aCpows);
if (!mTabChildGlobal) {
return IPC_OK();
}
// 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 IPC_OK();
}
JS::Rooted<JSObject*> kungFuDeathGrip(dom::RootingCx(), GetGlobal());
StructuredCloneData data;
UnpackClonedMessageDataForChild(aData, data);
RefPtr<nsFrameMessageManager> mm =
static_cast<nsFrameMessageManager*>(mTabChildGlobal->mMessageManager.get());
mm->ReceiveMessage(static_cast<EventTarget*>(mTabChildGlobal), nullptr,
aMessage, false, &data, &cpows, aPrincipal, nullptr);
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvSwappedWithOtherRemoteLoader(const IPCTabContext& aContext)
{
nsCOMPtr<nsIDocShell> ourDocShell = do_GetInterface(WebNavigation());
if (NS_WARN_IF(!ourDocShell)) {
return IPC_OK();
}
nsCOMPtr<nsPIDOMWindowOuter> ourWindow = ourDocShell->GetWindow();
if (NS_WARN_IF(!ourWindow)) {
return IPC_OK();
}
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 (IsMozBrowser()) {
RecvLoadRemoteScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
}
nsContentUtils::FirePageShowEvent(ourDocShell, ourEventTarget, true);
docShell->SetInFrameSwap(false);
return IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvPrint(const uint64_t& aOuterWindowID, const PrintData& aPrintData)
{
#ifdef NS_PRINTING
nsGlobalWindow* outerWindow =
nsGlobalWindow::GetOuterWindowWithId(aOuterWindowID);
if (NS_WARN_IF(!outerWindow)) {
return IPC_OK();
}
nsCOMPtr<nsIWebBrowserPrint> webBrowserPrint =
do_GetInterface(outerWindow->AsOuter());
if (NS_WARN_IF(!webBrowserPrint)) {
return IPC_OK();
}
nsCOMPtr<nsIPrintSettingsService> printSettingsSvc =
do_GetService("@mozilla.org/gfx/printsettings-service;1");
if (NS_WARN_IF(!printSettingsSvc)) {
return IPC_OK();
}
nsCOMPtr<nsIPrintSettings> printSettings;
nsresult rv =
printSettingsSvc->GetNewPrintSettings(getter_AddRefs(printSettings));
if (NS_WARN_IF(NS_FAILED(rv))) {
return IPC_OK();
}
nsCOMPtr<nsIPrintSession> printSession =
do_CreateInstance("@mozilla.org/gfx/printsession;1", &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return IPC_OK();
}
printSettings->SetPrintSession(printSession);
printSettingsSvc->DeserializeToPrintSettings(aPrintData, printSettings);
rv = webBrowserPrint->Print(printSettings, nullptr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return IPC_OK();
}
#endif
return IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvUpdateNativeWindowHandle(const uintptr_t& aNewHandle)
{
#if defined(XP_WIN) && defined(ACCESSIBILITY)
mNativeWindowHandle = aNewHandle;
return IPC_OK();
#else
return IPC_FAIL_NO_REASON(this);
#endif
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mLayerObserverEpoch = aLayerObserverEpoch;
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();
}
});
if (mCompositorOptions) {
// Note that |GetLayerManager()| has side-effects in that it creates a layer
// manager if one doesn't exist already. Calling it inside a debug-only
// assertion is generally bad but in this case we call it unconditionally
// just below so it's ok.
MOZ_ASSERT(mPuppetWidget);
MOZ_ASSERT(mPuppetWidget->GetLayerManager());
MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT
|| mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_WR);
// 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.
mPuppetWidget->GetLayerManager()->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 IPC_OK();
}
}
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 IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvHandledWindowedPluginKeyEvent(
const NativeEventData& aKeyEventData,
const bool& aIsConsumed)
{
if (NS_WARN_IF(!mPuppetWidget)) {
return IPC_OK();
}
mPuppetWidget->HandledWindowedPluginKeyEvent(aKeyEventData, aIsConsumed);
return IPC_OK();
}
PRenderFrameChild*
TabChild::AllocPRenderFrameChild()
{
return new RenderFrameChild();
}
bool
TabChild::DeallocPRenderFrameChild(PRenderFrameChild* aFrame)
{
delete aFrame;
return true;
}
bool
TabChild::InitTabChildGlobal()
{
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);
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);
mTabChildGlobal = scope.forget();;
}
if (!mTriedBrowserInit) {
mTriedBrowserInit = true;
// Initialize the child side of the browser element machinery,
// if appropriate.
if (IsMozBrowser()) {
RecvLoadRemoteScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
}
}
return true;
}
void
TabChild::InitRenderingState(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
const CompositorOptions& aCompositorOptions,
PRenderFrameChild* aRenderFrame)
{
mPuppetWidget->InitIMEState();
if (!aRenderFrame) {
NS_WARNING("failed to construct RenderFrame");
return;
}
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");
return;
}
mCompositorOptions = Some(aCompositorOptions);
mRemoteFrame = static_cast<RenderFrameChild*>(aRenderFrame);
if (aLayersId != 0) {
StaticMutexAutoLock lock(sTabChildrenMutex);
if (!sTabChildren) {
sTabChildren = new TabChildMap;
}
MOZ_ASSERT(!sTabChildren->Get(aLayersId));
sTabChildren->Put(aLayersId, this);
mLayersId = aLayersId;
}
ShadowLayerForwarder* lf =
mPuppetWidget->GetLayerManager(
nullptr, mTextureFactoryIdentifier.mParentBackend)
->AsShadowForwarder();
LayerManager* lm = mPuppetWidget->GetLayerManager();
if (lm->AsWebRenderLayerManager()) {
lm->AsWebRenderLayerManager()->Initialize(compositorChild,
wr::AsPipelineId(aLayersId),
&mTextureFactoryIdentifier);
ImageBridgeChild::IdentifyCompositorTextureHost(mTextureFactoryIdentifier);
gfx::VRManagerChild::IdentifyTextureHost(mTextureFactoryIdentifier);
InitAPZState();
}
if (lf) {
nsTArray<LayersBackend> backends;
backends.AppendElement(mTextureFactoryIdentifier.mParentBackend);
PLayerTransactionChild* shadowManager =
compositorChild->SendPLayerTransactionConstructor(backends, aLayersId);
if (shadowManager) {
lf->SetShadowManager(shadowManager);
lf->IdentifyTextureHost(mTextureFactoryIdentifier);
ImageBridgeChild::IdentifyCompositorTextureHost(mTextureFactoryIdentifier);
gfx::VRManagerChild::IdentifyTextureHost(mTextureFactoryIdentifier);
InitAPZState();
}
}
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
observerService->AddObserver(this,
BEFORE_FIRST_PAINT,
false);
}
}
void
TabChild::InitAPZState()
{
if (!mCompositorOptions->UseAPZ()) {
return;
}
auto cbc = CompositorBridgeChild::Get();
// Initialize the ApzcTreeManager. This takes multiple casts because of ugly multiple inheritance.
PAPZCTreeManagerChild* baseProtocol = cbc->SendPAPZCTreeManagerConstructor(mLayersId);
APZCTreeManagerChild* derivedProtocol = static_cast<APZCTreeManagerChild*>(baseProtocol);
mApzcTreeManager = RefPtr<IAPZCTreeManager>(derivedProtocol);
// Initialize the GeckoContentController for this tab. We don't hold a reference because we don't need it.
// The ContentProcessController will hold a reference to the tab, and will be destroyed by the compositor or ipdl
// during destruction.
RefPtr<GeckoContentController> contentController = new ContentProcessController(this);
APZChild* apzChild = new APZChild(contentController);
cbc->SetEventTargetForActor(
apzChild, TabGroup()->EventTargetFor(TaskCategory::Other));
MOZ_ASSERT(apzChild->GetActorEventTarget());
cbc->SendPAPZConstructor(apzChild, mLayersId);
}
void
TabChild::GetDPI(float* aDPI)
{
*aDPI = -1.0;
if (!(mDidFakeShow || mDidSetRealShowInfo)) {
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 (!(mDidFakeShow || mDidSetRealShowInfo)) {
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 (!(mDidFakeShow || mDidSetRealShowInfo)) {
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;
}
ClearCachedResources();
// Hide all plugins in this tab.
if (nsCOMPtr<nsIPresShell> shell = GetPresShell()) {
if (nsPresContext* presContext = shell->GetPresContext()) {
nsRootPresContext* rootPresContext = presContext->GetRootPresContext();
nsIFrame* rootFrame = shell->FrameConstructor()->GetRootFrame();
rootPresContext->ComputePluginGeometryUpdates(rootFrame, nullptr, nullptr);
rootPresContext->ApplyPluginGeometryUpdates();
}
}
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()
{
StaticMutexAutoLock lock(sTabChildrenMutex);
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)
{
StaticMutexAutoLock lock(sTabChildrenMutex);
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
|| mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_WR);
mPuppetWidget->GetLayerManager()->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
|| mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_WR);
mPuppetWidget->GetLayerManager()->ClearCachedResources();
}
void
TabChild::InvalidateLayers()
{
MOZ_ASSERT(mPuppetWidget);
MOZ_ASSERT(mPuppetWidget->GetLayerManager());
MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT
|| mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_WR);
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.
CompositorOptions options;
SendEnsureLayersConnected(&options);
mCompositorOptions = Some(options);
RefPtr<CompositorBridgeChild> cb = CompositorBridgeChild::Get();
if (gfxVars::UseWebRender()) {
RefPtr<LayerManager> lm = mPuppetWidget->RecreateLayerManager(nullptr);
MOZ_ASSERT(lm->AsWebRenderLayerManager());
lm->AsWebRenderLayerManager()->Initialize(cb,
wr::AsPipelineId(mLayersId),
&mTextureFactoryIdentifier);
} else {
bool success = false;
nsTArray<LayersBackend> ignored;
PLayerTransactionChild* shadowManager = cb->SendPLayerTransactionConstructor(ignored, LayersId());
if (shadowManager &&
shadowManager->SendGetTextureFactoryIdentifier(&mTextureFactoryIdentifier) &&
mTextureFactoryIdentifier.mParentBackend != LayersBackend::LAYERS_NONE)
{
success = true;
}
if (!success) {
NS_WARNING("failed to re-allocate layer transaction");
return;
}
RefPtr<LayerManager> lm = mPuppetWidget->RecreateLayerManager(shadowManager);
ShadowLayerForwarder* lf = lm->AsShadowForwarder();
lf->IdentifyTextureHost(mTextureFactoryIdentifier);
}
ImageBridgeChild::IdentifyCompositorTextureHost(mTextureFactoryIdentifier);
gfx::VRManagerChild::IdentifyTextureHost(mTextureFactoryIdentifier);
InitAPZState();
nsCOMPtr<nsIDocument> doc(GetDocument());
doc->NotifyLayerManagerRecreated();
}
void
TabChild::ReinitRenderingForDeviceReset()
{
InvalidateLayers();
RefPtr<LayerManager> lm = mPuppetWidget->GetLayerManager();
ClientLayerManager* clm = lm->AsClientLayerManager();
if (!clm) {
return;
}
if (ShadowLayerForwarder* fwd = clm->AsShadowForwarder()) {
// Force the LayerTransactionChild to synchronously shutdown. It is
// okay to do this early, we'll simply stop sending messages. This
// step is necessary since otherwise the compositor will think we
// are trying to attach two layer trees to the same ID.
fwd->SynchronouslyShutdown();
}
// Proceed with destroying and recreating the layer manager.
ReinitRendering();
}
void
TabChild::CompositorUpdated(const TextureFactoryIdentifier& aNewIdentifier,
uint64_t aDeviceResetSeqNo)
{
MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT
|| mPuppetWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_WR);
RefPtr<LayerManager> lm = mPuppetWidget->GetLayerManager();
mTextureFactoryIdentifier = aNewIdentifier;
lm->UpdateTextureFactoryIdentifier(aNewIdentifier, aDeviceResetSeqNo);
FrameLayerBuilder::InvalidateAllLayers(lm);
}
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;
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
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 IPC_OK();
}
mozilla::ipc::IPCResult
TabChild::RecvAwaitLargeAlloc()
{
mAwaitingLA = true;
return IPC_OK();
}
bool
TabChild::IsAwaitingLargeAlloc()
{
return mAwaitingLA;
}
bool
TabChild::StopAwaitingLargeAlloc()
{
bool awaiting = mAwaitingLA;
mAwaitingLA = false;
return awaiting;
}
mozilla::plugins::PPluginWidgetChild*
TabChild::AllocPPluginWidgetChild()
{
#ifdef XP_WIN
return new mozilla::plugins::PluginWidgetChild();
#else
MOZ_ASSERT_UNREACHABLE();
return nullptr;
#endif
}
bool
TabChild::DeallocPPluginWidgetChild(mozilla::plugins::PPluginWidgetChild* aActor)
{
delete aActor;
return true;
}
#ifdef XP_WIN
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;
}
#endif // XP_WIN
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);
}
void
TabChild::BeforeUnloadAdded()
{
// Don't bother notifying the parent if we don't have an IPC link open.
if (mBeforeUnloadListeners == 0 && IPCOpen()) {
SendSetHasBeforeUnload(true);
}
mBeforeUnloadListeners++;
MOZ_ASSERT(mBeforeUnloadListeners >= 0);
}
void
TabChild::BeforeUnloadRemoved()
{
mBeforeUnloadListeners--;
MOZ_ASSERT(mBeforeUnloadListeners >= 0);
// Don't bother notifying the parent if we don't have an IPC link open.
if (mBeforeUnloadListeners == 0 && IPCOpen()) {
SendSetHasBeforeUnload(false);
}
}
already_AddRefed<nsISHistory>
TabChild::GetRelatedSHistory()
{
nsCOMPtr<nsISHistory> shistory;
mWebNav->GetSessionHistory(getter_AddRefs(shistory));
return shistory.forget();
}
nsresult
TabChildSHistoryListener::SHistoryDidUpdate(bool aTruncate /* = false */)
{
RefPtr<TabChild> tabChild(mTabChild);
if (NS_WARN_IF(!tabChild)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsISHistory> shistory = tabChild->GetRelatedSHistory();
NS_ENSURE_TRUE(shistory, NS_ERROR_FAILURE);
int32_t index, count;
nsresult rv = shistory->GetIndex(&index);
NS_ENSURE_SUCCESS(rv, rv);
rv = shistory->GetCount(&count);
NS_ENSURE_SUCCESS(rv, rv);
// XXX: It would be nice if we could batch these updates like SessionStore
// does, and provide a form of `Flush` command which would allow us to trigger
// an update, and wait for the state to become consistent.
NS_ENSURE_TRUE(tabChild->SendSHistoryUpdate(count, index, aTruncate), NS_ERROR_FAILURE);
return NS_OK;
}
mozilla::dom::TabGroup*
TabChild::TabGroup()
{
return mTabGroup;
}
/*******************************************************************************
* 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::OnLengthChanged(int32_t aCount)
{
return SHistoryDidUpdate(/* aTruncate = */ true);
}
NS_IMETHODIMP
TabChildSHistoryListener::OnIndexChanged(int32_t aIndex)
{
return SHistoryDidUpdate(/* aTruncate = */ false);
}
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);
TelemetryScrollProbe::Create(this);
}
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);
return mTabChild->GetGlobal();
}
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