Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-11-08 04:27:37 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
98c532455d
gecko-dev/dom/ipc/TabChild.cpp
Sebastian Hengst e082884d78 Backed out 15 changesets (bug 1208944) for failing tests M(2,5) on OSX. r=backout 
Backed out changeset c29de223de2f (bug 1208944)
Backed out changeset 3d99da255be1 (bug 1209844)
Backed out changeset 3c915942af38 (bug 1209844)
Backed out changeset 759b425b5503 (bug 1208944)
Backed out changeset bf73cf8f0fda (bug 1208944)
Backed out changeset 0e337d912b7d (bug 1208944)
Backed out changeset 31c47f2980b5 (bug 1208944)
Backed out changeset 3e0d70a6e809 (bug 1208944)
Backed out changeset 7685dcb63e5f (bug 1208944)
Backed out changeset 3c2b9372dd36 (bug 1208944)
Backed out changeset 18160d306493 (bug 1208944)
Backed out changeset 4974e397b655 (bug 1208944)
Backed out changeset fde7e439844d (bug 1208944)
Backed out changeset 4213a355fbdc (bug 1208944)
Backed out changeset 33cfddbbf5f2 (bug 1208944)
2015-12-29 17:42:02 +01:00

3028 lines
89 KiB
C++
Raw Blame History

/* -*- 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/ClearOnShutdown.h"
#include "mozilla/EventListenerManager.h"
#include "mozilla/dom/workers/ServiceWorkerManager.h"
#include "mozilla/dom/indexedDB/PIndexedDBPermissionRequestChild.h"
#include "mozilla/plugins/PluginWidgetChild.h"
#include "mozilla/IMEStateManager.h"
#include "mozilla/ipc/DocumentRendererChild.h"
#include "mozilla/ipc/URIUtils.h"
#ifdef MOZ_NUWA_PROCESS
#include "ipc/Nuwa.h"
#endif
#include "mozilla/ipc/FileDescriptorUtils.h"
#include "mozilla/layers/APZCCallbackHelper.h"
#include "mozilla/layers/APZCTreeManager.h"
#include "mozilla/layers/APZEventState.h"
#include "mozilla/layers/CompositorChild.h"
#include "mozilla/layers/DoubleTapToZoom.h"
#include "mozilla/layers/ImageBridgeChild.h"
#include "mozilla/layers/InputAPZContext.h"
#include "mozilla/layers/ShadowLayers.h"
#include "mozilla/layout/RenderFrameChild.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/Move.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TouchEvents.h"
#include "mozilla/unused.h"
#include "mozIApplication.h"
#include "nsContentUtils.h"
#include "nsDocShell.h"
#include "nsEmbedCID.h"
#include <algorithm>
#ifdef MOZ_CRASHREPORTER
#include "nsExceptionHandler.h"
#endif
#include "nsFilePickerProxy.h"
#include "mozilla/dom/Element.h"
#include "nsIBaseWindow.h"
#include "nsIBrowserDOMWindow.h"
#include "nsICachedFileDescriptorListener.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 "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 "nsIOService.h"
#include "nsDOMClassInfoID.h"
#include "nsColorPickerProxy.h"
#include "nsContentPermissionHelper.h"
#include "nsPresShell.h"
#include "nsIAppsService.h"
#include "nsNetUtil.h"
#include "nsIPermissionManager.h"
#include "nsIURILoader.h"
#include "nsIScriptError.h"
#include "mozilla/EventForwards.h"
#include "nsDeviceContext.h"
#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;
NS_IMPL_ISUPPORTS(ContentListener, nsIDOMEventListener)
static const CSSSize kDefaultViewportSize(980, 480);
static const char BEFORE_FIRST_PAINT[] = "before-first-paint";
typedef nsDataHashtable<nsUint64HashKey, TabChild*> TabChildMap;
static TabChildMap* sTabChildren;
static bool
UsingCompositorLRU()
{
static bool sHavePrefs = false;
static uint32_t sCompositorLRUSize = 0;
if (!sHavePrefs) {
sHavePrefs = true;
Preferences::AddUintVarCache(&sCompositorLRUSize,
"layers.compositor-lru-size", 0);
}
return sCompositorLRUSize != 0;
}
TabChildBase::TabChildBase()
: mTabChildGlobal(nullptr)
{
mozilla::HoldJSObjects(this);
}
TabChildBase::~TabChildBase()
{
mAnonymousGlobalScopes.Clear();
mozilla::DropJSObjects(this);
}
NS_IMPL_CYCLE_COLLECTION_CLASS(TabChildBase)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(TabChildBase)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTabChildGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAnonymousGlobalScopes)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWebBrowserChrome)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(TabChildBase)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTabChildGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWebBrowserChrome)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(TabChildBase)
for (uint32_t i = 0; i < tmp->mAnonymousGlobalScopes.Length(); ++i) {
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mAnonymousGlobalScopes[i])
}
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TabChildBase)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(TabChildBase)
NS_IMPL_CYCLE_COLLECTING_RELEASE(TabChildBase)
already_AddRefed<nsIDocument>
TabChildBase::GetDocument() const
{
nsCOMPtr<nsIDOMDocument> domDoc;
WebNavigation()->GetDocument(getter_AddRefs(domDoc));
nsCOMPtr<nsIDocument> doc(do_QueryInterface(domDoc));
return doc.forget();
}
already_AddRefed<nsIPresShell>
TabChildBase::GetPresShell() const
{
nsCOMPtr<nsIPresShell> result;
if (nsCOMPtr<nsIDocument> doc = GetDocument()) {
result = doc->GetShell();
}
return result.forget();
}
void
TabChildBase::DispatchMessageManagerMessage(const nsAString& aMessageName,
const nsAString& aJSONData)
{
AutoSafeJSContext cx;
JS::Rooted<JS::Value> json(cx, JS::NullValue());
StructuredCloneData data;
if (JS_ParseJSON(cx,
static_cast<const char16_t*>(aJSONData.BeginReading()),
aJSONData.Length(),
&json)) {
ErrorResult rv;
data.Write(cx, json, rv);
if (NS_WARN_IF(rv.Failed())) {
return;
}
}
nsCOMPtr<nsIXPConnectJSObjectHolder> kungFuDeathGrip(GetGlobal());
// Let the BrowserElementScrolling helper (if it exists) for this
// content manipulate the frame state.
RefPtr<nsFrameMessageManager> mm =
static_cast<nsFrameMessageManager*>(mTabChildGlobal->mMessageManager.get());
mm->ReceiveMessage(static_cast<EventTarget*>(mTabChildGlobal), nullptr,
aMessageName, false, &data, nullptr, nullptr, nullptr);
}
bool
TabChildBase::UpdateFrameHandler(const FrameMetrics& aFrameMetrics)
{
MOZ_ASSERT(aFrameMetrics.GetScrollId() != FrameMetrics::NULL_SCROLL_ID);
if (aFrameMetrics.IsRootContent()) {
if (nsCOMPtr<nsIPresShell> shell = GetPresShell()) {
// Guard against stale updates (updates meant for a pres shell which
// has since been torn down and destroyed).
if (aFrameMetrics.GetPresShellId() == shell->GetPresShellId()) {
ProcessUpdateFrame(aFrameMetrics);
return true;
}
}
} else {
// aFrameMetrics.mIsRoot is false, so we are trying to update a subframe.
// This requires special handling.
FrameMetrics newSubFrameMetrics(aFrameMetrics);
APZCCallbackHelper::UpdateSubFrame(newSubFrameMetrics);
return true;
}
return true;
}
void
TabChildBase::ProcessUpdateFrame(const FrameMetrics& aFrameMetrics)
{
if (!mGlobal || !mTabChildGlobal) {
return;
}
FrameMetrics newMetrics = aFrameMetrics;
APZCCallbackHelper::UpdateRootFrame(newMetrics);
}
NS_IMETHODIMP
ContentListener::HandleEvent(nsIDOMEvent* aEvent)
{
RemoteDOMEvent remoteEvent;
remoteEvent.mEvent = do_QueryInterface(aEvent);
NS_ENSURE_STATE(remoteEvent.mEvent);
mTabChild->SendEvent(remoteEvent);
return NS_OK;
}
class TabChild::CachedFileDescriptorInfo
{
struct PathOnlyComparatorHelper
{
bool Equals(const nsAutoPtr<CachedFileDescriptorInfo>& a,
const CachedFileDescriptorInfo& b) const
{
return a->mPath == b.mPath;
}
};
struct PathAndCallbackComparatorHelper
{
bool Equals(const nsAutoPtr<CachedFileDescriptorInfo>& a,
const CachedFileDescriptorInfo& b) const
{
return a->mPath == b.mPath &&
a->mCallback == b.mCallback;
}
};
public:
nsString mPath;
FileDescriptor mFileDescriptor;
nsCOMPtr<nsICachedFileDescriptorListener> mCallback;
bool mCanceled;
explicit CachedFileDescriptorInfo(const nsAString& aPath)
: mPath(aPath), mCanceled(false)
{ }
CachedFileDescriptorInfo(const nsAString& aPath,
const FileDescriptor& aFileDescriptor)
: mPath(aPath), mFileDescriptor(aFileDescriptor), mCanceled(false)
{ }
CachedFileDescriptorInfo(const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback)
: mPath(aPath), mCallback(aCallback), mCanceled(false)
{ }
PathOnlyComparatorHelper PathOnlyComparator() const
{
return PathOnlyComparatorHelper();
}
PathAndCallbackComparatorHelper PathAndCallbackComparator() const
{
return PathAndCallbackComparatorHelper();
}
void FireCallback() const
{
mCallback->OnCachedFileDescriptor(mPath, mFileDescriptor);
}
};
class TabChild::CachedFileDescriptorCallbackRunnable : public nsRunnable
{
typedef TabChild::CachedFileDescriptorInfo CachedFileDescriptorInfo;
nsAutoPtr<CachedFileDescriptorInfo> mInfo;
public:
explicit CachedFileDescriptorCallbackRunnable(CachedFileDescriptorInfo* aInfo)
: mInfo(aInfo)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aInfo);
MOZ_ASSERT(!aInfo->mPath.IsEmpty());
MOZ_ASSERT(aInfo->mCallback);
}
void Dispatch()
{
MOZ_ASSERT(NS_IsMainThread());
nsresult rv = NS_DispatchToCurrentThread(this);
NS_ENSURE_SUCCESS_VOID(rv);
}
private:
NS_IMETHOD Run()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mInfo);
mInfo->FireCallback();
return NS_OK;
}
};
class TabChild::DelayedDeleteRunnable final
: public nsRunnable
{
RefPtr<TabChild> mTabChild;
public:
explicit DelayedDeleteRunnable(TabChild* aTabChild)
: mTabChild(aTabChild)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aTabChild);
}
private:
~DelayedDeleteRunnable()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mTabChild);
}
NS_IMETHOD
Run()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mTabChild);
// Check in case ActorDestroy was called after RecvDestroy message.
if (mTabChild->IPCOpen()) {
Unused << PBrowserChild::Send__delete__(mTabChild);
}
mTabChild = nullptr;
return NS_OK;
}
};
namespace {
StaticRefPtr<TabChild> sPreallocatedTab;
std::map<TabId, RefPtr<TabChild>>&
NestedTabChildMap()
{
MOZ_ASSERT(NS_IsMainThread());
static std::map<TabId, RefPtr<TabChild>> sNestedTabChildMap;
return sNestedTabChildMap;
}
} // namespace
already_AddRefed<TabChild>
TabChild::FindTabChild(const TabId& aTabId)
{
auto iter = NestedTabChildMap().find(aTabId);
if (iter == NestedTabChildMap().end()) {
return nullptr;
}
RefPtr<TabChild> tabChild = iter->second;
return tabChild.forget();
}
static void
PreloadSlowThingsPostFork(void* aUnused)
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
observerService->NotifyObservers(nullptr, "preload-postfork", nullptr);
MOZ_ASSERT(sPreallocatedTab);
// Initialize initial reflow of the PresShell has to happen after fork
// because about:blank content viewer is created in the above observer
// notification.
nsCOMPtr<nsIDocShell> docShell =
do_GetInterface(sPreallocatedTab->WebNavigation());
if (nsIPresShell* presShell = docShell->GetPresShell()) {
// Initialize and do an initial reflow of the about:blank
// PresShell to let it preload some things for us.
presShell->Initialize(0, 0);
nsIDocument* doc = presShell->GetDocument();
doc->FlushPendingNotifications(Flush_Layout);
// ... but after it's done, make sure it doesn't do any more
// work.
presShell->MakeZombie();
}
}
#ifdef MOZ_NUWA_PROCESS
class MessageChannelAutoBlock MOZ_STACK_CLASS
{
public:
MessageChannelAutoBlock()
{
SetMessageChannelBlocked(true);
}
~MessageChannelAutoBlock()
{
SetMessageChannelBlocked(false);
}
private:
void SetMessageChannelBlocked(bool aBlock)
{
if (!IsNuwaProcess()) {
return;
}
mozilla::dom::ContentChild* content =
mozilla::dom::ContentChild::GetSingleton();
if (aBlock) {
content->GetIPCChannel()->Block();
} else {
content->GetIPCChannel()->Unblock();
}
// Other IPC channels do not perform the checks through Block() and
// Unblock().
}
};
#endif
static bool sPreloaded = false;
/*static*/ void
TabChild::PreloadSlowThings()
{
if (sPreloaded) {
// If we are alredy initialized in Nuwa, don't redo preloading.
return;
}
sPreloaded = true;
// Pass nullptr to aManager since at this point the TabChild is
// not connected to any manager. Any attempt to use the TabChild
// in IPC will crash.
RefPtr<TabChild> tab(new TabChild(nullptr,
TabId(0),
TabContext(), /* chromeFlags */ 0));
if (!NS_SUCCEEDED(tab->Init()) ||
!tab->InitTabChildGlobal(DONT_LOAD_SCRIPTS)) {
return;
}
#ifdef MOZ_NUWA_PROCESS
// Temporarily block the IPC channels to the chrome process when we are
// preloading.
MessageChannelAutoBlock autoblock;
#endif
// Just load and compile these scripts, but don't run them.
tab->TryCacheLoadAndCompileScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
// Load, compile, and run these scripts.
tab->RecvLoadRemoteScript(
NS_LITERAL_STRING("chrome://global/content/preload.js"),
true);
sPreallocatedTab = tab;
ClearOnShutdown(&sPreallocatedTab);
#ifdef MOZ_NUWA_PROCESS
if (IsNuwaProcess()) {
NuwaAddFinalConstructor(PreloadSlowThingsPostFork, nullptr);
} else {
PreloadSlowThingsPostFork(nullptr);
}
#else
PreloadSlowThingsPostFork(nullptr);
#endif
}
/*static*/ already_AddRefed<TabChild>
TabChild::Create(nsIContentChild* aManager,
const TabId& aTabId,
const TabContext &aContext,
uint32_t aChromeFlags)
{
if (sPreallocatedTab &&
sPreallocatedTab->mChromeFlags == aChromeFlags &&
aContext.IsBrowserOrApp()) {
RefPtr<TabChild> child = sPreallocatedTab.get();
sPreallocatedTab = nullptr;
MOZ_ASSERT(!child->mTriedBrowserInit);
child->mManager = aManager;
child->SetTabId(aTabId);
child->SetTabContext(aContext);
child->NotifyTabContextUpdated();
return child.forget();
}
RefPtr<TabChild> iframe = new TabChild(aManager, aTabId,
aContext, aChromeFlags);
return NS_SUCCEEDED(iframe->Init()) ? iframe.forget() : nullptr;
}
TabChild::TabChild(nsIContentChild* aManager,
const TabId& aTabId,
const TabContext& aContext,
uint32_t aChromeFlags)
: TabContext(aContext)
, mRemoteFrame(nullptr)
, mManager(aManager)
, mChromeFlags(aChromeFlags)
, mActiveSuppressDisplayport(0)
, mLayersId(0)
, mAppPackageFileDescriptorRecved(false)
, mDidFakeShow(false)
, mNotified(false)
, mTriedBrowserInit(false)
, mOrientation(eScreenOrientation_PortraitPrimary)
, mUpdateHitRegion(false)
, mIgnoreKeyPressEvent(false)
, mHasValidInnerSize(false)
, mDestroyed(false)
, mUniqueId(aTabId)
, mDPI(0)
, mDefaultScale(0)
, mIPCOpen(true)
, mParentIsActive(false)
, mDidSetRealShowInfo(false)
{
// In the general case having the TabParent tell us if APZ is enabled or not
// doesn't really work because the TabParent itself may not have a reference
// to the owning widget during initialization. Instead we assume that this
// TabChild corresponds to a widget type that would have APZ enabled, and just
// check the other conditions necessary for enabling APZ.
mAsyncPanZoomEnabled = gfxPlatform::AsyncPanZoomEnabled();
nsWeakPtr weakPtrThis(do_GetWeakReference(static_cast<nsITabChild*>(this))); // for capture by the lambda
mSetAllowedTouchBehaviorCallback = [weakPtrThis](uint64_t aInputBlockId,
const nsTArray<TouchBehaviorFlags>& aFlags)
{
if (nsCOMPtr<nsITabChild> tabChild = do_QueryReferent(weakPtrThis)) {
static_cast<TabChild*>(tabChild.get())->SendSetAllowedTouchBehavior(aInputBlockId, aFlags);
}
};
// preloaded TabChild should not be added to child map
if (mUniqueId) {
MOZ_ASSERT(NestedTabChildMap().find(mUniqueId) == NestedTabChildMap().end());
NestedTabChildMap()[mUniqueId] = this;
}
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
const nsAttrValue::EnumTable* table =
AudioChannelService::GetAudioChannelTable();
nsAutoCString topic;
for (uint32_t i = 0; table[i].tag; ++i) {
topic.Assign("audiochannel-activity-");
topic.Append(table[i].tag);
observerService->AddObserver(this, topic.get(), false);
}
}
for (uint32_t idx = 0; idx < NUMBER_OF_AUDIO_CHANNELS; idx++) {
mAudioChannelsActive.AppendElement(false);
}
}
NS_IMETHODIMP
TabChild::Observe(nsISupports *aSubject,
const char *aTopic,
const char16_t *aData)
{
if (!strcmp(aTopic, BEFORE_FIRST_PAINT)) {
if (AsyncPanZoomEnabled()) {
nsCOMPtr<nsIDocument> subject(do_QueryInterface(aSubject));
nsCOMPtr<nsIDocument> doc(GetDocument());
if (SameCOMIdentity(subject, doc)) {
nsCOMPtr<nsIPresShell> shell(doc->GetShell());
if (shell) {
shell->SetIsFirstPaint(true);
}
APZCCallbackHelper::InitializeRootDisplayport(shell);
}
}
}
const nsAttrValue::EnumTable* table =
AudioChannelService::GetAudioChannelTable();
nsAutoCString topic;
int16_t audioChannel = -1;
for (uint32_t i = 0; table[i].tag; ++i) {
topic.Assign("audiochannel-activity-");
topic.Append(table[i].tag);
if (topic.Equals(aTopic)) {
audioChannel = table[i].value;
break;
}
}
if (audioChannel != -1 && mIPCOpen) {
// If the subject is not a wrapper, it is sent by the TabParent and we
// should ignore it.
nsCOMPtr<nsISupportsPRUint64> wrapper = do_QueryInterface(aSubject);
if (!wrapper) {
return NS_OK;
}
// We must have a window in order to compare the windowID contained into the
// wrapper.
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
if (!window) {
return NS_OK;
}
uint64_t windowID = 0;
nsresult rv = wrapper->GetData(&windowID);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// In theory a tabChild should contain just 1 top window, but let's double
// check it comparing the windowID.
if (window->WindowID() != windowID) {
MOZ_LOG(AudioChannelService::GetAudioChannelLog(), LogLevel::Debug,
("TabChild, Observe, different windowID, owner ID = %lld, "
"ID from wrapper = %lld", window->WindowID(), windowID));
return NS_OK;
}
nsAutoString activeStr(aData);
bool active = activeStr.EqualsLiteral("active");
if (active != mAudioChannelsActive[audioChannel]) {
mAudioChannelsActive[audioChannel] = active;
Unused << SendAudioChannelActivityNotification(audioChannel, active);
}
}
return NS_OK;
}
bool
TabChild::DoUpdateZoomConstraints(const uint32_t& aPresShellId,
const ViewID& aViewId,
const Maybe<ZoomConstraints>& aConstraints)
{
if (sPreallocatedTab == this) {
// If we're the preallocated tab, bail out because doing IPC will crash.
// Once we get used for something we'll get another zoom constraints update
// and all will be well.
return true;
}
return SendUpdateZoomConstraints(aPresShellId,
aViewId,
aConstraints);
}
nsresult
TabChild::Init()
{
nsCOMPtr<nsIWebBrowser> webBrowser = do_CreateInstance(NS_WEBBROWSER_CONTRACTID);
if (!webBrowser) {
NS_ERROR("Couldn't create a nsWebBrowser?");
return NS_ERROR_FAILURE;
}
webBrowser->SetContainerWindow(this);
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->Create(
nullptr, 0, // no parents
LayoutDeviceIntRect(0, 0, 0, 0),
nullptr // HandleWidgetEvent
);
baseWindow->InitWindow(0, mPuppetWidget, 0, 0, 0, 0);
baseWindow->Create();
NotifyTabContextUpdated();
// 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(
mChromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW);
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<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsCOMPtr<EventTarget> chromeHandler =
do_QueryInterface(window->GetChromeEventHandler());
docShell->SetChromeEventHandler(chromeHandler);
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())->SendContentReceivedInputBlock(aGuid, aInputBlockId, aPreventDefault);
}
});
mAPZEventState = new APZEventState(mPuppetWidget, Move(callback));
return NS_OK;
}
void
TabChild::NotifyTabContextUpdated()
{
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
MOZ_ASSERT(docShell);
if (docShell) {
// nsDocShell will do the right thing if we pass NO_APP_ID or
// UNKNOWN_APP_ID for aOwnOrContainingAppId.
if (IsBrowserElement()) {
docShell->SetIsBrowserInsideApp(BrowserOwnerAppId());
} else {
docShell->SetIsApp(OwnAppId());
}
docShell->SetIsSignedPackage(OriginAttributesRef().mSignedPkg);
}
}
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_NOTREACHED("TabChild::GetWebBrowser not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SetWebBrowser(nsIWebBrowser* aWebBrowser)
{
NS_NOTREACHED("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_NOTREACHED("trying to SetChromeFlags from content process?");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::DestroyBrowserWindow()
{
NS_NOTREACHED("TabChild::DestroyBrowserWindow not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SizeBrowserTo(int32_t aCX, int32_t aCY)
{
NS_NOTREACHED("TabChild::SizeBrowserTo not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::ShowAsModal()
{
NS_NOTREACHED("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_NOTREACHED("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)
{
Unused << PBrowserChild::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()
{
NS_WARNING("TabChild::SetFocus not supported in TabChild");
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_NOTREACHED("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_NOTREACHED("TabChild::GetSiteWindow not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::Blur()
{
NS_WARNING("TabChild::Blur not supported in TabChild");
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(nsIDOMWindow* aParent, uint32_t aChromeFlags,
bool aCalledFromJS,
bool aPositionSpecified, bool aSizeSpecified,
nsIURI* aURI, const nsAString& aName,
const nsACString& aFeatures, bool* aWindowIsNew,
nsIDOMWindow** aReturn)
{
*aReturn = nullptr;
// If aParent is inside an <iframe mozbrowser> or <iframe mozapp> and this
// isn't a request to open a modal-type window, we're going to create a new
// <iframe mozbrowser/mozapp> and return its window here.
nsCOMPtr<nsIDocShell> docshell = do_GetInterface(aParent);
bool iframeMoz = (docshell && docshell->GetIsInBrowserOrApp() &&
!(aChromeFlags & (nsIWebBrowserChrome::CHROME_MODAL |
nsIWebBrowserChrome::CHROME_OPENAS_DIALOG |
nsIWebBrowserChrome::CHROME_OPENAS_CHROME)));
if (!iframeMoz) {
int32_t openLocation =
nsWindowWatcher::GetWindowOpenLocation(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,
aWindowIsNew,
aReturn);
}
void
TabChild::DestroyWindow()
{
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
if (baseWindow)
baseWindow->Destroy();
// NB: the order of mPuppetWidget->Destroy() and mRemoteFrame->Destroy()
// is important: we want to kill off remote layers before their
// frames
if (mPuppetWidget) {
mPuppetWidget->Destroy();
}
if (mRemoteFrame) {
mRemoteFrame->Destroy();
mRemoteFrame = nullptr;
}
if (mLayersId != 0) {
MOZ_ASSERT(sTabChildren);
sTabChildren->Remove(mLayersId);
if (!sTabChildren->Count()) {
delete sTabChildren;
sTabChildren = nullptr;
}
mLayersId = 0;
}
for (uint32_t index = 0, count = mCachedFileDescriptorInfos.Length();
index < count;
index++) {
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(!info->mCallback);
if (info->mFileDescriptor.IsValid()) {
MOZ_ASSERT(!info->mCanceled);
RefPtr<CloseFileRunnable> runnable =
new CloseFileRunnable(info->mFileDescriptor);
runnable->Dispatch();
}
}
mCachedFileDescriptorInfos.Clear();
}
void
TabChild::ActorDestroy(ActorDestroyReason why)
{
mIPCOpen = false;
DestroyWindow();
if (mTabChildGlobal) {
// The messageManager relays messages via the TabChild which
// no longer exists.
static_cast<nsFrameMessageManager*>
(mTabChildGlobal->mMessageManager.get())->Disconnect();
mTabChildGlobal->mMessageManager = nullptr;
}
CompositorChild* compositorChild = static_cast<CompositorChild*>(CompositorChild::Get());
compositorChild->CancelNotifyAfterRemotePaint(this);
if (GetTabId() != 0) {
NestedTabChildMap().erase(GetTabId());
}
}
TabChild::~TabChild()
{
DestroyWindow();
nsCOMPtr<nsIWebBrowser> webBrowser = do_QueryInterface(WebNavigation());
if (webBrowser) {
webBrowser->SetContainerWindow(nullptr);
}
}
void
TabChild::SetProcessNameToAppName()
{
nsCOMPtr<mozIApplication> app = GetOwnApp();
if (!app) {
return;
}
nsAutoString appName;
nsresult rv = app->GetName(appName);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to retrieve app name");
return;
}
ContentChild::GetSingleton()->SetProcessName(appName, true);
}
bool
TabChild::IsRootContentDocument()
{
// A TabChild is a "root content document" if it's
//
// - <iframe mozapp> not inside another <iframe mozapp>,
// - <iframe mozbrowser> (not mozapp), or
// - a vanilla remote frame (<html:iframe remote=true> or <xul:browser
// remote=true>).
//
// Put another way, an iframe is /not/ a "root content document" iff it's a
// mozapp inside a mozapp. (This corresponds exactly to !HasAppOwnerApp.)
//
// Note that we're lying through our teeth here (thus the scare quotes).
// <html:iframe remote=true> or <xul:browser remote=true> inside another
// content iframe is not actually a root content document, but we say it is.
//
// We do this because we make a remote frame opaque iff
// IsRootContentDocument(), and making vanilla remote frames transparent
// breaks our remote reftests.
return !HasAppOwnerApp();
}
bool
TabChild::RecvLoadURL(const nsCString& aURI,
const BrowserConfiguration& aConfiguration,
const ShowInfo& aInfo)
{
if (!InitTabChildGlobal()) {
return false;
}
ApplyShowInfo(aInfo);
SetProcessNameToAppName();
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
MOZ_ASSERT(swm);
swm->LoadRegistrations(aConfiguration.serviceWorkerRegistrations());
nsresult rv = WebNavigation()->LoadURI(NS_ConvertUTF8toUTF16(aURI).get(),
nsIWebNavigation::LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP |
nsIWebNavigation::LOAD_FLAGS_DISALLOW_INHERIT_OWNER,
nullptr, nullptr, nullptr);
if (NS_FAILED(rv)) {
NS_WARNING("WebNavigation()->LoadURI failed. Eating exception, what else can I do?");
}
#ifdef MOZ_CRASHREPORTER
CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("URL"), aURI);
#endif
return true;
}
bool
TabChild::RecvOpenURI(const URIParams& aURI, const uint32_t& aFlags)
{
nsCOMPtr<nsIURI> uri = DeserializeURI(aURI);
nsCOMPtr<nsIChannel> channel;
nsresult rv =
NS_NewChannel(getter_AddRefs(channel),
uri,
nsContentUtils::GetSystemPrincipal(),
nsILoadInfo::SEC_NORMAL,
nsIContentPolicy::TYPE_DOCUMENT);
if (NS_WARN_IF(NS_FAILED(rv))) {
return true;
}
nsCOMPtr<nsIURILoader> loader = do_GetService("@mozilla.org/uriloader;1");
if (NS_WARN_IF(!loader)) {
return true;
}
nsCOMPtr<nsIInterfaceRequestor> context(do_QueryInterface(WebNavigation()));
loader->OpenURI(channel, aFlags, context);
return true;
}
bool
TabChild::RecvCacheFileDescriptor(const nsString& aPath,
const FileDescriptor& aFileDescriptor)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(!mAppPackageFileDescriptorRecved);
mAppPackageFileDescriptorRecved = true;
// aFileDescriptor may be invalid here, but the callback will choose how to
// handle it.
// First see if we already have a request for this path.
const CachedFileDescriptorInfo search(aPath);
size_t index =
mCachedFileDescriptorInfos.IndexOf(search, 0,
search.PathOnlyComparator());
if (index == mCachedFileDescriptorInfos.NoIndex) {
// We haven't had any requests for this path yet. Assume that we will
// in a little while and save the file descriptor here.
mCachedFileDescriptorInfos.AppendElement(
new CachedFileDescriptorInfo(aPath, aFileDescriptor));
return true;
}
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(info);
MOZ_ASSERT(info->mPath == aPath);
MOZ_ASSERT(!info->mFileDescriptor.IsValid());
MOZ_ASSERT(info->mCallback);
// If this callback has been canceled then we can simply close the file
// descriptor and forget about the callback.
if (info->mCanceled) {
// Only close if this is a valid file descriptor.
if (aFileDescriptor.IsValid()) {
RefPtr<CloseFileRunnable> runnable =
new CloseFileRunnable(aFileDescriptor);
runnable->Dispatch();
}
} else {
// Not canceled so fire the callback.
info->mFileDescriptor = aFileDescriptor;
// We don't need a runnable here because we should already be at the top
// of the event loop. Just fire immediately.
info->FireCallback();
}
mCachedFileDescriptorInfos.RemoveElementAt(index);
return true;
}
bool
TabChild::GetCachedFileDescriptor(const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(aCallback);
// First see if we've already received a cached file descriptor for this
// path.
const CachedFileDescriptorInfo search(aPath);
size_t index =
mCachedFileDescriptorInfos.IndexOf(search, 0,
search.PathOnlyComparator());
if (index == mCachedFileDescriptorInfos.NoIndex) {
// We haven't received a file descriptor for this path yet. Assume that
// we will in a little while and save the request here.
if (!mAppPackageFileDescriptorRecved) {
mCachedFileDescriptorInfos.AppendElement(
new CachedFileDescriptorInfo(aPath, aCallback));
}
return false;
}
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(info);
MOZ_ASSERT(info->mPath == aPath);
// If we got a previous request for this file descriptor that was then
// canceled, insert the new request ahead of the old in the queue so that
// it will be serviced first.
if (info->mCanceled) {
// This insertion will change the array and invalidate |info|, so
// be careful not to touch |info| after this.
mCachedFileDescriptorInfos.InsertElementAt(index,
new CachedFileDescriptorInfo(aPath, aCallback));
return false;
}
MOZ_ASSERT(!info->mCallback);
info->mCallback = aCallback;
RefPtr<CachedFileDescriptorCallbackRunnable> runnable =
new CachedFileDescriptorCallbackRunnable(info.forget());
runnable->Dispatch();
mCachedFileDescriptorInfos.RemoveElementAt(index);
return true;
}
void
TabChild::CancelCachedFileDescriptorCallback(
const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(aCallback);
if (mAppPackageFileDescriptorRecved) {
// Already received cached file descriptor for the app package. Nothing to do here.
return;
}
const CachedFileDescriptorInfo search(aPath, aCallback);
size_t index =
mCachedFileDescriptorInfos.IndexOf(search, 0,
search.PathAndCallbackComparator());
if (index == mCachedFileDescriptorInfos.NoIndex) {
// Nothing to do here.
return;
}
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(info);
MOZ_ASSERT(info->mPath == aPath);
MOZ_ASSERT(!info->mFileDescriptor.IsValid());
MOZ_ASSERT(info->mCallback == aCallback);
MOZ_ASSERT(!info->mCanceled);
// No need to hold the callback any longer.
info->mCallback = nullptr;
// Set this flag so that we will close the file descriptor when it arrives.
info->mCanceled = true;
}
void
TabChild::DoFakeShow(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
PRenderFrameChild* aRenderFrame, const ShowInfo& aShowInfo)
{
RecvShow(ScreenIntSize(0, 0), aShowInfo, aTextureFactoryIdentifier,
aLayersId, aRenderFrame, mParentIsActive);
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 (IsBrowserOrApp()) {
// 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()) {
bool nonBlank;
docShell->GetHasLoadedNonBlankURI(&nonBlank);
if (nonBlank) {
nsContentUtils::ReportToConsoleNonLocalized(
NS_LITERAL_STRING("We should not switch to Private Browsing after loading a document."),
nsIScriptError::warningFlag,
NS_LITERAL_CSTRING("mozprivatebrowsing"),
nullptr);
} else {
context->SetUsePrivateBrowsing(true);
}
}
}
}
mDPI = aInfo.dpi();
mDefaultScale = aInfo.defaultScale();
}
#ifdef MOZ_WIDGET_GONK
void
TabChild::MaybeRequestPreinitCamera()
{
// Check if this tab is an app (not a browser frame) and will use the
// `camera` permission,
if (IsBrowserElement()) {
return;
}
nsCOMPtr<nsIAppsService> appsService = do_GetService("@mozilla.org/AppsService;1");
if (NS_WARN_IF(!appsService)) {
return;
}
nsCOMPtr<mozIApplication> app;
nsresult rv = appsService->GetAppByLocalId(OwnAppId(), getter_AddRefs(app));
if (NS_WARN_IF(NS_FAILED(rv)) || !app) {
return;
}
nsCOMPtr<nsIPrincipal> principal;
app->GetPrincipal(getter_AddRefs(principal));
if (NS_WARN_IF(!principal)) {
return;
}
uint16_t status = nsIPrincipal::APP_STATUS_NOT_INSTALLED;
principal->GetAppStatus(&status);
bool isCertified = status == nsIPrincipal::APP_STATUS_CERTIFIED;
if (!isCertified) {
return;
}
nsCOMPtr<nsIPermissionManager> permMgr = services::GetPermissionManager();
if (NS_WARN_IF(!permMgr)) {
return;
}
uint32_t permission = nsIPermissionManager::DENY_ACTION;
permMgr->TestPermissionFromPrincipal(principal, "camera", &permission);
bool hasPermission = permission == nsIPermissionManager::ALLOW_ACTION;
if (!hasPermission) {
return;
}
nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();
if (NS_WARN_IF(!observerService)) {
return;
}
observerService->NotifyObservers(nullptr, "init-camera-hw", nullptr);
}
#endif
bool
TabChild::RecvShow(const ScreenIntSize& aSize,
const ShowInfo& aInfo,
const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
PRenderFrameChild* aRenderFrame,
const bool& aParentIsActive)
{
MOZ_ASSERT((!mDidFakeShow && aRenderFrame) || (mDidFakeShow && !aRenderFrame));
if (mDidFakeShow) {
ApplyShowInfo(aInfo);
RecvParentActivated(aParentIsActive);
return true;
}
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
if (!baseWindow) {
NS_ERROR("WebNavigation() doesn't QI to nsIBaseWindow");
return false;
}
if (!InitRenderingState(aTextureFactoryIdentifier, aLayersId, aRenderFrame)) {
// We can fail to initialize our widget if the <browser
// remote> has already been destroyed, and we couldn't hook
// into the parent-process's layer system. That's not a fatal
// error.
return true;
}
baseWindow->SetVisibility(true);
#ifdef MOZ_WIDGET_GONK
MaybeRequestPreinitCamera();
#endif
bool res = InitTabChildGlobal();
ApplyShowInfo(aInfo);
RecvParentActivated(aParentIsActive);
return res;
}
bool
TabChild::RecvUpdateDimensions(const CSSRect& rect, const CSSSize& size,
const nsSizeMode& sizeMode,
const ScreenOrientationInternal& orientation,
const LayoutDeviceIntPoint& chromeDisp)
{
if (!mRemoteFrame) {
return true;
}
mUnscaledOuterRect = rect;
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,
true);
mPuppetWidget->SetSizeMode(sizeMode);
mPuppetWidget->Resize(screenRect.x + chromeDisp.x,
screenRect.y + chromeDisp.y,
screenSize.width, screenSize.height, true);
return true;
}
bool
TabChild::RecvUpdateFrame(const FrameMetrics& aFrameMetrics)
{
return TabChildBase::UpdateFrameHandler(aFrameMetrics);
}
bool
TabChild::RecvSuppressDisplayport(const bool& aEnabled)
{
if (aEnabled) {
mActiveSuppressDisplayport++;
} else {
mActiveSuppressDisplayport--;
}
MOZ_ASSERT(mActiveSuppressDisplayport >= 0);
APZCCallbackHelper::SuppressDisplayport(aEnabled);
return true;
}
bool
TabChild::RecvRequestFlingSnap(const FrameMetrics::ViewID& aScrollId,
const mozilla::CSSPoint& aDestination)
{
APZCCallbackHelper::RequestFlingSnap(aScrollId, aDestination);
return true;
}
bool
TabChild::RecvAcknowledgeScrollUpdate(const ViewID& aScrollId,
const uint32_t& aScrollGeneration)
{
APZCCallbackHelper::AcknowledgeScrollUpdate(aScrollId, aScrollGeneration);
return true;
}
bool
TabChild::RecvHandleDoubleTap(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 true;
}
// Note: there is nothing to do with the modifiers here, as we are not
// synthesizing any sort of mouse event.
CSSPoint point = APZCCallbackHelper::ApplyCallbackTransform(aPoint, aGuid);
nsCOMPtr<nsIDocument> document = GetDocument();
CSSRect zoomToRect = CalculateRectToZoomTo(document, point);
// 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)) {
SendZoomToRect(presShellId, viewId, zoomToRect);
}
return true;
}
bool
TabChild::RecvHandleSingleTap(const CSSPoint& aPoint, const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid)
{
if (mGlobal && mTabChildGlobal) {
mAPZEventState->ProcessSingleTap(aPoint, aModifiers, aGuid);
}
return true;
}
bool
TabChild::RecvHandleLongTap(const CSSPoint& aPoint, const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid, const uint64_t& aInputBlockId)
{
if (mGlobal && mTabChildGlobal) {
mAPZEventState->ProcessLongTap(GetPresShell(), aPoint, aModifiers, aGuid,
aInputBlockId);
}
return true;
}
bool
TabChild::RecvNotifyAPZStateChange(const ViewID& aViewId,
const APZStateChange& aChange,
const int& aArg)
{
mAPZEventState->ProcessAPZStateChange(GetDocument(), aViewId, aChange, aArg);
if (aChange == APZStateChange::TransformEnd) {
// 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.
DispatchMessageManagerMessage(
NS_LITERAL_STRING("APZ:TransformEnd"),
NS_LITERAL_STRING("{}"));
}
return true;
}
bool
TabChild::RecvNotifyFlushComplete()
{
APZCCallbackHelper::NotifyFlushComplete();
return true;
}
bool
TabChild::RecvActivate()
{
nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
browser->Activate();
return true;
}
bool TabChild::RecvDeactivate()
{
nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
browser->Deactivate();
return true;
}
bool TabChild::RecvParentActivated(const bool& aActivated)
{
mParentIsActive = aActivated;
nsFocusManager* fm = nsFocusManager::GetFocusManager();
NS_ENSURE_TRUE(fm, true);
nsCOMPtr<nsIDOMWindow> window = do_GetInterface(WebNavigation());
fm->ParentActivated(window, aActivated);
return true;
}
bool
TabChild::RecvStopIMEStateManagement()
{
IMEStateManager::StopIMEStateManagement();
return true;
}
bool
TabChild::RecvMenuKeyboardListenerInstalled(const bool& aInstalled)
{
IMEStateManager::OnInstalledMenuKeyboardListener(aInstalled);
return true;
}
bool
TabChild::RecvMouseEvent(const nsString& aType,
const float& aX,
const float& aY,
const int32_t& aButton,
const int32_t& aClickCount,
const int32_t& aModifiers,
const bool& aIgnoreRootScrollFrame)
{
APZCCallbackHelper::DispatchMouseEvent(GetPresShell(), aType, CSSPoint(aX, aY),
aButton, aClickCount, aModifiers, aIgnoreRootScrollFrame, nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN);
return true;
}
bool
TabChild::RecvRealMouseMoveEvent(const WidgetMouseEvent& event,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
return RecvRealMouseButtonEvent(event, aGuid, aInputBlockId);
}
bool
TabChild::RecvSynthMouseMoveEvent(const WidgetMouseEvent& event,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
return RecvRealMouseButtonEvent(event, aGuid, aInputBlockId);
}
bool
TabChild::RecvRealMouseButtonEvent(const WidgetMouseEvent& event,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
nsEventStatus unused;
InputAPZContext context(aGuid, aInputBlockId, unused);
WidgetMouseEvent localEvent(event);
localEvent.widget = mPuppetWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
if (event.mFlags.mHandledByAPZ) {
mAPZEventState->ProcessMouseEvent(event, aGuid, aInputBlockId);
}
return true;
}
bool
TabChild::RecvMouseWheelEvent(const WidgetWheelEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
if (aEvent.mFlags.mHandledByAPZ) {
nsCOMPtr<nsIDocument> document(GetDocument());
APZCCallbackHelper::SendSetTargetAPZCNotification(
mPuppetWidget, document, aEvent, aGuid, aInputBlockId);
}
WidgetWheelEvent event(aEvent);
event.widget = mPuppetWidget;
APZCCallbackHelper::DispatchWidgetEvent(event);
if (event.mCanTriggerSwipe) {
SendRespondStartSwipeEvent(aInputBlockId, event.TriggersSwipe());
}
if (aEvent.mFlags.mHandledByAPZ) {
mAPZEventState->ProcessWheelEvent(event, aGuid, aInputBlockId);
}
return true;
}
bool
TabChild::RecvMouseScrollTestEvent(const FrameMetrics::ViewID& aScrollId, const nsString& aEvent)
{
APZCCallbackHelper::NotifyMozMouseScrollEvent(aScrollId, aEvent);
return true;
}
bool
TabChild::RecvRealTouchEvent(const WidgetTouchEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId,
const nsEventStatus& aApzResponse)
{
TABC_LOG("Receiving touch event of type %d\n", aEvent.mMessage);
WidgetTouchEvent localEvent(aEvent);
localEvent.widget = mPuppetWidget;
APZCCallbackHelper::ApplyCallbackTransform(localEvent, aGuid,
mPuppetWidget->GetDefaultScale());
if (localEvent.mMessage == eTouchStart && AsyncPanZoomEnabled()) {
if (gfxPrefs::TouchActionEnabled()) {
APZCCallbackHelper::SendSetAllowedTouchBehaviorNotification(mPuppetWidget,
localEvent, aInputBlockId, mSetAllowedTouchBehaviorCallback);
}
nsCOMPtr<nsIDocument> document = GetDocument();
APZCCallbackHelper::SendSetTargetAPZCNotification(mPuppetWidget, document,
localEvent, aGuid, aInputBlockId);
}
// Dispatch event to content (potentially a long-running operation)
nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
if (!AsyncPanZoomEnabled()) {
// We shouldn't have any e10s platforms that have touch events enabled
// without APZ.
MOZ_ASSERT(false);
return true;
}
mAPZEventState->ProcessTouchEvent(localEvent, aGuid, aInputBlockId,
aApzResponse, status);
return true;
}
bool
TabChild::RecvRealTouchMoveEvent(const WidgetTouchEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId,
const nsEventStatus& aApzResponse)
{
return RecvRealTouchEvent(aEvent, aGuid, aInputBlockId, aApzResponse);
}
bool
TabChild::RecvRealDragEvent(const WidgetDragEvent& aEvent,
const uint32_t& aDragAction,
const uint32_t& aDropEffect)
{
WidgetDragEvent localEvent(aEvent);
localEvent.widget = mPuppetWidget;
nsCOMPtr<nsIDragSession> dragSession = nsContentUtils::GetDragSession();
if (dragSession) {
dragSession->SetDragAction(aDragAction);
nsCOMPtr<nsIDOMDataTransfer> initialDataTransfer;
dragSession->GetDataTransfer(getter_AddRefs(initialDataTransfer));
if (initialDataTransfer) {
initialDataTransfer->SetDropEffectInt(aDropEffect);
}
}
if (aEvent.mMessage == eDrop) {
bool canDrop = true;
if (!dragSession || NS_FAILED(dragSession->GetCanDrop(&canDrop)) ||
!canDrop) {
localEvent.mMessage = eDragExit;
}
} else if (aEvent.mMessage == eDragOver) {
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
if (dragService) {
// This will dispatch 'drag' event at the source if the
// drag transaction started in this process.
dragService->FireDragEventAtSource(eDrag);
}
}
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
return true;
}
void
TabChild::RequestNativeKeyBindings(AutoCacheNativeKeyCommands* aAutoCache,
WidgetKeyboardEvent* aEvent)
{
MaybeNativeKeyBinding maybeBindings;
if (!SendRequestNativeKeyBindings(*aEvent, &maybeBindings)) {
return;
}
if (maybeBindings.type() == MaybeNativeKeyBinding::TNativeKeyBinding) {
const NativeKeyBinding& bindings = maybeBindings;
aAutoCache->Cache(bindings.singleLineCommands(),
bindings.multiLineCommands(),
bindings.richTextCommands());
} else {
aAutoCache->CacheNoCommands();
}
}
bool
TabChild::RecvNativeSynthesisResponse(const uint64_t& aObserverId,
const nsCString& aResponse)
{
mozilla::widget::AutoObserverNotifier::NotifySavedObserver(aObserverId, aResponse.get());
return true;
}
bool
TabChild::RecvRealKeyEvent(const WidgetKeyboardEvent& event,
const MaybeNativeKeyBinding& aBindings)
{
AutoCacheNativeKeyCommands autoCache(mPuppetWidget);
if (event.mMessage == eKeyPress) {
// If content code called preventDefault() on a keydown event, then we don't
// want to process any following keypress events.
if (mIgnoreKeyPressEvent) {
return true;
}
if (aBindings.type() == MaybeNativeKeyBinding::TNativeKeyBinding) {
const NativeKeyBinding& bindings = aBindings;
autoCache.Cache(bindings.singleLineCommands(),
bindings.multiLineCommands(),
bindings.richTextCommands());
} else {
autoCache.CacheNoCommands();
}
}
WidgetKeyboardEvent localEvent(event);
localEvent.widget = mPuppetWidget;
nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
if (event.mMessage == eKeyDown) {
mIgnoreKeyPressEvent = status == nsEventStatus_eConsumeNoDefault;
}
if (localEvent.mFlags.mWantReplyFromContentProcess) {
SendReplyKeyEvent(localEvent);
}
if (PresShell::BeforeAfterKeyboardEventEnabled()) {
SendDispatchAfterKeyboardEvent(localEvent);
}
return true;
}
bool
TabChild::RecvKeyEvent(const nsString& aType,
const int32_t& aKeyCode,
const int32_t& aCharCode,
const int32_t& aModifiers,
const bool& aPreventDefault)
{
bool ignored = false;
nsContentUtils::SendKeyEvent(mPuppetWidget, aType, aKeyCode, aCharCode,
aModifiers, aPreventDefault, &ignored);
return true;
}
bool
TabChild::RecvCompositionEvent(const WidgetCompositionEvent& event)
{
WidgetCompositionEvent localEvent(event);
localEvent.widget = mPuppetWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
Unused << SendOnEventNeedingAckHandled(event.mMessage);
return true;
}
bool
TabChild::RecvSelectionEvent(const WidgetSelectionEvent& event)
{
WidgetSelectionEvent localEvent(event);
localEvent.widget = mPuppetWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
Unused << SendOnEventNeedingAckHandled(event.mMessage);
return true;
}
a11y::PDocAccessibleChild*
TabChild::AllocPDocAccessibleChild(PDocAccessibleChild*, const uint64_t&)
{
MOZ_ASSERT(false, "should never call this!");
return nullptr;
}
bool
TabChild::DeallocPDocAccessibleChild(a11y::PDocAccessibleChild* aChild)
{
#ifdef ACCESSIBILITY
delete static_cast<mozilla::a11y::DocAccessibleChild*>(aChild);
#endif
return true;
}
PDocumentRendererChild*
TabChild::AllocPDocumentRendererChild(const nsRect& documentRect,
const mozilla::gfx::Matrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags,
const bool& flushLayout,
const nsIntSize& renderSize)
{
return new DocumentRendererChild();
}
bool
TabChild::DeallocPDocumentRendererChild(PDocumentRendererChild* actor)
{
delete actor;
return true;
}
bool
TabChild::RecvPDocumentRendererConstructor(PDocumentRendererChild* actor,
const nsRect& documentRect,
const mozilla::gfx::Matrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags,
const bool& flushLayout,
const nsIntSize& renderSize)
{
DocumentRendererChild *render = static_cast<DocumentRendererChild *>(actor);
nsCOMPtr<nsIWebBrowser> browser = do_QueryInterface(WebNavigation());
if (!browser)
return true; // silently ignore
nsCOMPtr<nsIDOMWindow> window;
if (NS_FAILED(browser->GetContentDOMWindow(getter_AddRefs(window))) ||
!window)
{
return true; // silently ignore
}
nsCString data;
bool ret = render->RenderDocument(window,
documentRect, transform,
bgcolor,
renderFlags, flushLayout,
renderSize, data);
if (!ret)
return true; // silently ignore
return PDocumentRendererChild::Send__delete__(actor, renderSize, data);
}
PColorPickerChild*
TabChild::AllocPColorPickerChild(const nsString&, const nsString&)
{
NS_RUNTIMEABORT("unused");
return nullptr;
}
bool
TabChild::DeallocPColorPickerChild(PColorPickerChild* aColorPicker)
{
nsColorPickerProxy* picker = static_cast<nsColorPickerProxy*>(aColorPicker);
NS_RELEASE(picker);
return true;
}
PFilePickerChild*
TabChild::AllocPFilePickerChild(const nsString&, const int16_t&)
{
NS_RUNTIMEABORT("unused");
return nullptr;
}
bool
TabChild::DeallocPFilePickerChild(PFilePickerChild* actor)
{
nsFilePickerProxy* filePicker = static_cast<nsFilePickerProxy*>(actor);
NS_RELEASE(filePicker);
return true;
}
auto
TabChild::AllocPIndexedDBPermissionRequestChild(const Principal& aPrincipal)
-> PIndexedDBPermissionRequestChild*
{
MOZ_CRASH("PIndexedDBPermissionRequestChild actors should always be created "
"manually!");
}
bool
TabChild::DeallocPIndexedDBPermissionRequestChild(
PIndexedDBPermissionRequestChild* aActor)
{
MOZ_ASSERT(aActor);
delete aActor;
return true;
}
bool
TabChild::RecvActivateFrameEvent(const nsString& aType, const bool& capture)
{
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, true);
nsCOMPtr<EventTarget> chromeHandler =
do_QueryInterface(window->GetChromeEventHandler());
NS_ENSURE_TRUE(chromeHandler, true);
RefPtr<ContentListener> listener = new ContentListener(this);
chromeHandler->AddEventListener(aType, listener, capture);
return true;
}
bool
TabChild::RecvLoadRemoteScript(const nsString& aURL, const bool& aRunInGlobalScope)
{
if (!mGlobal && !InitTabChildGlobal())
// This can happen if we're half-destroyed. It's not a fatal
// error.
return true;
LoadScriptInternal(aURL, aRunInGlobalScope);
return true;
}
bool
TabChild::RecvAsyncMessage(const nsString& aMessage,
const ClonedMessageData& aData,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal)
{
if (mTabChildGlobal) {
nsCOMPtr<nsIXPConnectJSObjectHolder> kungFuDeathGrip(GetGlobal());
StructuredCloneData data;
UnpackClonedMessageDataForChild(aData, data);
RefPtr<nsFrameMessageManager> mm =
static_cast<nsFrameMessageManager*>(mTabChildGlobal->mMessageManager.get());
CrossProcessCpowHolder cpows(Manager(), aCpows);
mm->ReceiveMessage(static_cast<EventTarget*>(mTabChildGlobal), nullptr,
aMessage, false, &data, &cpows, aPrincipal, nullptr);
}
return true;
}
bool
TabChild::RecvAppOfflineStatus(const uint32_t& aId, const bool& aOffline)
{
// Instantiate the service to make sure gIOService is initialized
nsCOMPtr<nsIIOService> ioService = mozilla::services::GetIOService();
if (gIOService && ioService) {
gIOService->SetAppOfflineInternal(aId, aOffline ?
nsIAppOfflineInfo::OFFLINE : nsIAppOfflineInfo::ONLINE);
}
return true;
}
bool
TabChild::RecvSwappedWithOtherRemoteLoader()
{
nsCOMPtr<nsIDocShell> ourDocShell = do_GetInterface(WebNavigation());
if (NS_WARN_IF(!ourDocShell)) {
return true;
}
nsCOMPtr<nsPIDOMWindow> ourWindow = ourDocShell->GetWindow();
if (NS_WARN_IF(!ourWindow)) {
return true;
}
RefPtr<nsDocShell> docShell = static_cast<nsDocShell*>(ourDocShell.get());
nsCOMPtr<EventTarget> ourEventTarget = ourWindow->GetParentTarget();
docShell->SetInFrameSwap(true);
nsContentUtils::FirePageShowEvent(ourDocShell, ourEventTarget, false);
nsContentUtils::FirePageHideEvent(ourDocShell, ourEventTarget);
nsContentUtils::FirePageShowEvent(ourDocShell, ourEventTarget, true);
docShell->SetInFrameSwap(false);
return true;
}
bool
TabChild::RecvHandleAccessKey(nsTArray<uint32_t>&& aCharCodes,
const bool& aIsTrusted,
const int32_t& aModifierMask)
{
nsCOMPtr<nsIDocument> document(GetDocument());
nsCOMPtr<nsIPresShell> presShell = document->GetShell();
if (presShell) {
nsPresContext* pc = presShell->GetPresContext();
if (pc) {
pc->EventStateManager()->HandleAccessKey(pc, aCharCodes, aIsTrusted, aModifierMask);
}
}
return true;
}
bool
TabChild::RecvAudioChannelChangeNotification(const uint32_t& aAudioChannel,
const float& aVolume,
const bool& aMuted)
{
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
if (window) {
RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
MOZ_ASSERT(service);
service->SetAudioChannelVolume(window,
static_cast<AudioChannel>(aAudioChannel),
aVolume);
service->SetAudioChannelMuted(window,
static_cast<AudioChannel>(aAudioChannel),
aMuted);
}
return true;
}
bool
TabChild::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);
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_TRUE(NS_SUCCEEDED(NS_DispatchToCurrentThread(deleteRunnable)));
return true;
}
bool
TabChild::RecvSetUpdateHitRegion(const bool& aEnabled)
{
mUpdateHitRegion = aEnabled;
// We need to trigger a repaint of the child frame to ensure that it
// recomputes and sends its region.
if (!mUpdateHitRegion) {
return true;
}
nsCOMPtr<nsIDocument> document(GetDocument());
NS_ENSURE_TRUE(document, true);
nsCOMPtr<nsIPresShell> presShell = document->GetShell();
NS_ENSURE_TRUE(presShell, true);
RefPtr<nsPresContext> presContext = presShell->GetPresContext();
NS_ENSURE_TRUE(presContext, true);
presContext->InvalidatePaintedLayers();
return true;
}
bool
TabChild::RecvSetDocShellIsActive(const bool& aIsActive, const bool& aIsHidden)
{
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
if (docShell) {
if (aIsHidden) {
docShell->SetIsActive(aIsActive);
} else {
docShell->SetIsActiveAndForeground(aIsActive);
}
}
return true;
}
bool
TabChild::RecvNavigateByKey(const bool& aForward, const bool& aForDocumentNavigation)
{
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
nsCOMPtr<nsIDOMElement> result;
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
// Move to the first or last document.
uint32_t type = aForward ?
(aForDocumentNavigation ? static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_FIRSTDOC) :
static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_ROOT)) :
(aForDocumentNavigation ? static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_LASTDOC) :
static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_LAST));
fm->MoveFocus(window, nullptr, type,
nsIFocusManager::FLAG_BYKEY, getter_AddRefs(result));
// No valid root element was found, so move to the first focusable element.
if (!result && aForward && !aForDocumentNavigation) {
fm->MoveFocus(window, nullptr, nsIFocusManager::MOVEFOCUS_FIRST,
nsIFocusManager::FLAG_BYKEY, getter_AddRefs(result));
}
SendRequestFocus(false);
}
return true;
}
PRenderFrameChild*
TabChild::AllocPRenderFrameChild()
{
return new RenderFrameChild();
}
bool
TabChild::DeallocPRenderFrameChild(PRenderFrameChild* aFrame)
{
delete aFrame;
return true;
}
bool
TabChild::InitTabChildGlobal(FrameScriptLoading aScriptLoading)
{
if (!mGlobal && !mTabChildGlobal) {
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, false);
nsCOMPtr<EventTarget> chromeHandler =
do_QueryInterface(window->GetChromeEventHandler());
NS_ENSURE_TRUE(chromeHandler, false);
RefPtr<TabChildGlobal> scope = new TabChildGlobal(this);
mTabChildGlobal = scope;
nsISupports* scopeSupports = NS_ISUPPORTS_CAST(EventTarget*, scope);
NS_NAMED_LITERAL_CSTRING(globalId, "outOfProcessTabChildGlobal");
NS_ENSURE_TRUE(InitChildGlobalInternal(scopeSupports, globalId), false);
scope->Init();
nsCOMPtr<nsPIWindowRoot> root = do_QueryInterface(chromeHandler);
NS_ENSURE_TRUE(root, false);
root->SetParentTarget(scope);
}
if (aScriptLoading != DONT_LOAD_SCRIPTS && !mTriedBrowserInit) {
mTriedBrowserInit = true;
// Initialize the child side of the browser element machinery,
// if appropriate.
if (IsBrowserOrApp()) {
RecvLoadRemoteScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
}
}
return true;
}
bool
TabChild::InitRenderingState(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
PRenderFrameChild* aRenderFrame)
{
mPuppetWidget->InitIMEState();
RenderFrameChild* remoteFrame = static_cast<RenderFrameChild*>(aRenderFrame);
if (!remoteFrame) {
NS_WARNING("failed to construct RenderFrame");
return false;
}
MOZ_ASSERT(aLayersId != 0);
mTextureFactoryIdentifier = aTextureFactoryIdentifier;
// Pushing layers transactions directly to a separate
// compositor context.
PCompositorChild* compositorChild = CompositorChild::Get();
if (!compositorChild) {
NS_WARNING("failed to get CompositorChild instance");
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
nsTArray<LayersBackend> backends;
backends.AppendElement(mTextureFactoryIdentifier.mParentBackend);
bool success;
PLayerTransactionChild* shadowManager =
compositorChild->SendPLayerTransactionConstructor(backends,
aLayersId, &mTextureFactoryIdentifier, &success);
if (!success) {
NS_WARNING("failed to properly allocate layer transaction");
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
if (!shadowManager) {
NS_WARNING("failed to construct LayersChild");
// This results in |remoteFrame| being deleted.
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
ShadowLayerForwarder* lf =
mPuppetWidget->GetLayerManager(
shadowManager, mTextureFactoryIdentifier.mParentBackend)
->AsShadowForwarder();
MOZ_ASSERT(lf && lf->HasShadowManager(),
"PuppetWidget should have shadow manager");
lf->IdentifyTextureHost(mTextureFactoryIdentifier);
ImageBridgeChild::IdentifyCompositorTextureHost(mTextureFactoryIdentifier);
mRemoteFrame = remoteFrame;
if (aLayersId != 0) {
if (!sTabChildren) {
sTabChildren = new TabChildMap;
}
MOZ_ASSERT(!sTabChildren->Get(aLayersId));
sTabChildren->Put(aLayersId, this);
mLayersId = aLayersId;
}
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
observerService->AddObserver(this,
BEFORE_FIRST_PAINT,
false);
}
return true;
}
void
TabChild::GetDPI(float* aDPI)
{
*aDPI = -1.0;
if (!mRemoteFrame) {
return;
}
if (mDPI > 0) {
*aDPI = mDPI;
return;
}
// Fallback to a sync call if needed.
SendGetDPI(aDPI);
}
void
TabChild::GetDefaultScale(double* aScale)
{
*aScale = -1.0;
if (!mRemoteFrame) {
return;
}
if (mDefaultScale > 0) {
*aScale = mDefaultScale;
return;
}
// Fallback to a sync call if needed.
SendGetDefaultScale(aScale);
}
void
TabChild::GetMaxTouchPoints(uint32_t* aTouchPoints)
{
// Fallback to a sync call.
SendGetMaxTouchPoints(aTouchPoints);
}
void
TabChild::NotifyPainted()
{
if (!mNotified) {
mRemoteFrame->SendNotifyCompositorTransaction();
mNotified = true;
}
}
void
TabChild::MakeVisible()
{
CompositorChild* compositor = CompositorChild::Get();
if (UsingCompositorLRU()) {
compositor->SendNotifyVisible(mLayersId);
}
if (mPuppetWidget) {
mPuppetWidget->Show(true);
}
}
void
TabChild::MakeHidden()
{
CompositorChild* compositor = CompositorChild::Get();
if (UsingCompositorLRU()) {
compositor->SendNotifyHidden(mLayersId);
} else {
// Clear cached resources directly. This avoids one extra IPC
// round-trip from CompositorChild to CompositorParent when
// CompositorLRU is not used.
compositor->RecvClearCachedResources(mLayersId);
}
if (mPuppetWidget) {
mPuppetWidget->Show(false);
}
}
void
TabChild::UpdateHitRegion(const nsRegion& aRegion)
{
mRemoteFrame->SendUpdateHitRegion(aRegion);
}
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::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), data, cpows,
Principal(aPrincipal))) {
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
TabChild*
TabChild::GetFrom(nsIPresShell* aPresShell)
{
nsIDocument* doc = aPresShell->GetDocument();
if (!doc) {
return nullptr;
}
nsCOMPtr<nsIDocShell> docShell(doc->GetDocShell());
return GetFrom(docShell);
}
TabChild*
TabChild::GetFrom(uint64_t aLayersId)
{
if (!sTabChildren) {
return nullptr;
}
return sTabChildren->Get(aLayersId);
}
void
TabChild::DidComposite(uint64_t aTransactionId,
const TimeStamp& aCompositeStart,
const TimeStamp& aCompositeEnd)
{
MOZ_ASSERT(mPuppetWidget);
MOZ_ASSERT(mPuppetWidget->GetLayerManager());
MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() ==
LayersBackend::LAYERS_CLIENT);
ClientLayerManager *manager =
static_cast<ClientLayerManager*>(mPuppetWidget->GetLayerManager());
manager->DidComposite(aTransactionId, aCompositeStart, aCompositeEnd);
}
void
TabChild::DidRequestComposite(const TimeStamp& aCompositeReqStart,
const TimeStamp& aCompositeReqEnd)
{
nsCOMPtr<nsIDocShell> docShellComPtr = do_GetInterface(WebNavigation());
if (!docShellComPtr) {
return;
}
nsDocShell* docShell = static_cast<nsDocShell*>(docShellComPtr.get());
RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
if (timelines && timelines->HasConsumer(docShell)) {
timelines->AddMarkerForDocShell(docShell,
"CompositeForwardTransaction", aCompositeReqStart, MarkerTracingType::START);
timelines->AddMarkerForDocShell(docShell,
"CompositeForwardTransaction", aCompositeReqEnd, MarkerTracingType::END);
}
}
void
TabChild::ClearCachedResources()
{
MOZ_ASSERT(mPuppetWidget);
MOZ_ASSERT(mPuppetWidget->GetLayerManager());
MOZ_ASSERT(mPuppetWidget->GetLayerManager()->GetBackendType() ==
LayersBackend::LAYERS_CLIENT);
ClientLayerManager *manager =
static_cast<ClientLayerManager*>(mPuppetWidget->GetLayerManager());
manager->ClearCachedResources();
}
NS_IMETHODIMP
TabChild::OnShowTooltip(int32_t aXCoords, int32_t aYCoords, const char16_t *aTipText)
{
nsString str(aTipText);
SendShowTooltip(aXCoords, aYCoords, str);
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnHideTooltip()
{
SendHideTooltip();
return NS_OK;
}
bool
TabChild::RecvRequestNotifyAfterRemotePaint()
{
// Get the CompositorChild instance for this content thread.
CompositorChild* compositor = CompositorChild::Get();
// Tell the CompositorChild that, when it gets a RemotePaintIsReady
// message that it should forward it us so that we can bounce it to our
// RenderFrameParent.
compositor->RequestNotifyAfterRemotePaint(this);
return true;
}
bool
TabChild::RecvUIResolutionChanged(const float& aDpi, const double& aScale)
{
ScreenIntSize oldScreenSize = GetInnerSize();
mDPI = 0;
mDefaultScale = 0;
static_cast<PuppetWidget*>(mPuppetWidget.get())->UpdateBackingScaleCache(aDpi, 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 + mChromeDisp.x,
screenRect.y + mChromeDisp.y,
screenSize.width, screenSize.height, true);
nsCOMPtr<nsIBaseWindow> baseWin = do_QueryInterface(WebNavigation());
baseWin->SetPositionAndSize(0, 0, screenSize.width, screenSize.height,
true);
}
return true;
}
bool
TabChild::RecvThemeChanged(nsTArray<LookAndFeelInt>&& aLookAndFeelIntCache)
{
LookAndFeel::SetIntCache(aLookAndFeelIntCache);
nsCOMPtr<nsIDocument> document(GetDocument());
nsCOMPtr<nsIPresShell> presShell = document->GetShell();
if (presShell) {
RefPtr<nsPresContext> presContext = presShell->GetPresContext();
if (presContext) {
presContext->ThemeChanged();
}
}
return true;
}
mozilla::plugins::PPluginWidgetChild*
TabChild::AllocPPluginWidgetChild()
{
return new mozilla::plugins::PluginWidgetChild();
}
bool
TabChild::DeallocPPluginWidgetChild(mozilla::plugins::PPluginWidgetChild* aActor)
{
delete aActor;
return true;
}
nsresult
TabChild::CreatePluginWidget(nsIWidget* aParent, nsIWidget** aOut)
{
*aOut = nullptr;
mozilla::plugins::PluginWidgetChild* child =
static_cast<mozilla::plugins::PluginWidgetChild*>(SendPPluginWidgetConstructor());
if (!child) {
NS_ERROR("couldn't create PluginWidgetChild");
return NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsIWidget> pluginWidget = nsIWidget::CreatePluginProxyWidget(this, child);
if (!pluginWidget) {
NS_ERROR("couldn't create PluginWidgetProxy");
return NS_ERROR_UNEXPECTED;
}
nsWidgetInitData initData;
initData.mWindowType = eWindowType_plugin_ipc_content;
initData.mUnicode = false;
initData.clipChildren = true;
initData.clipSiblings = true;
nsresult rv = pluginWidget->Create(aParent, nullptr,
LayoutDeviceIntRect(0, 0, 0, 0),
&initData);
if (NS_FAILED(rv)) {
NS_WARNING("Creating native plugin widget on the chrome side failed.");
}
pluginWidget.forget(aOut);
return rv;
}
ScreenIntSize
TabChild::GetInnerSize()
{
LayoutDeviceIntSize innerSize =
RoundedToInt(mUnscaledInnerSize * mPuppetWidget->GetDefaultScale());
return ViewAs<ScreenPixel>(innerSize, PixelCastJustification::LayoutDeviceIsScreenForTabDims);
};
ScreenIntRect
TabChild::GetOuterRect()
{
LayoutDeviceIntRect outerRect =
RoundedToInt(mUnscaledOuterRect * mPuppetWidget->GetDefaultScale());
return ViewAs<ScreenPixel>(outerRect, PixelCastJustification::LayoutDeviceIsScreenForTabDims);
}
TabChildGlobal::TabChildGlobal(TabChildBase* aTabChild)
: mTabChild(aTabChild)
{
SetIsNotDOMBinding();
}
TabChildGlobal::~TabChildGlobal()
{
}
void
TabChildGlobal::Init()
{
NS_ASSERTION(!mMessageManager, "Re-initializing?!?");
mMessageManager = new nsFrameMessageManager(mTabChild,
nullptr,
MM_CHILD);
}
NS_IMPL_CYCLE_COLLECTION_CLASS(TabChildGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(TabChildGlobal,
DOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMessageManager);
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTabChild);
tmp->UnlinkHostObjectURIs();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(TabChildGlobal,
DOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMessageManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTabChild)
tmp->TraverseHostObjectURIs(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TabChildGlobal)
NS_INTERFACE_MAP_ENTRY(nsIMessageListenerManager)
NS_INTERFACE_MAP_ENTRY(nsIMessageSender)
NS_INTERFACE_MAP_ENTRY(nsISyncMessageSender)
NS_INTERFACE_MAP_ENTRY(nsIContentFrameMessageManager)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(ContentFrameMessageManager)
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(TabChildGlobal, DOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(TabChildGlobal, DOMEventTargetHelper)
// This method isn't automatically forwarded safely because it's notxpcom, so
// the IDL binding doesn't know what value to return.
NS_IMETHODIMP_(bool)
TabChildGlobal::MarkForCC()
{
if (mTabChild) {
mTabChild->MarkScopesForCC();
}
EventListenerManager* elm = GetExistingListenerManager();
if (elm) {
elm->MarkForCC();
}
return mMessageManager ? mMessageManager->MarkForCC() : false;
}
NS_IMETHODIMP
TabChildGlobal::GetContent(nsIDOMWindow** aContent)
{
*aContent = nullptr;
if (!mTabChild)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDOMWindow> window = do_GetInterface(mTabChild->WebNavigation());
window.swap(*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;
}
JSContext*
TabChildGlobal::GetJSContextForEventHandlers()
{
return nsContentUtils::GetSafeJSContext();
}
nsIPrincipal*
TabChildGlobal::GetPrincipal()
{
if (!mTabChild)
return nullptr;
return mTabChild->GetPrincipal();
}
JSObject*
TabChildGlobal::GetGlobalJSObject()
{
NS_ENSURE_TRUE(mTabChild, nullptr);
nsCOMPtr<nsIXPConnectJSObjectHolder> ref = mTabChild->GetGlobal();
NS_ENSURE_TRUE(ref, nullptr);
return ref->GetJSObject();
}
Reference in New Issue View Git Blame Copy Permalink