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BrowserParent.cpp
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BrowserParent.cpp
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "base/basictypes.h"
#include "BrowserParent.h"
#ifdef ACCESSIBILITY
# include "mozilla/a11y/DocAccessibleParent.h"
# include "mozilla/a11y/Platform.h"
# include "mozilla/a11y/ProxyAccessibleBase.h"
# include "nsAccessibilityService.h"
#endif
#include "mozilla/dom/CancelContentJSOptionsBinding.h"
#include "mozilla/dom/ChromeMessageSender.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/DataTransfer.h"
#include "mozilla/dom/DataTransferItemList.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/indexedDB/ActorsParent.h"
#include "mozilla/dom/PaymentRequestParent.h"
#include "mozilla/dom/BrowserBridgeParent.h"
#include "mozilla/dom/RemoteDragStartData.h"
#include "mozilla/dom/RemoteWebProgress.h"
#include "mozilla/dom/RemoteWebProgressRequest.h"
#include "mozilla/dom/SessionStoreUtils.h"
#include "mozilla/dom/SessionStoreUtilsBinding.h"
#include "mozilla/dom/UserActivation.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/DataSurfaceHelpers.h"
#include "mozilla/gfx/GPUProcessManager.h"
#include "mozilla/Hal.h"
#include "mozilla/IMEStateManager.h"
#include "mozilla/layers/AsyncDragMetrics.h"
#include "mozilla/layers/InputAPZContext.h"
#include "mozilla/layout/RemoteLayerTreeOwner.h"
#include "mozilla/plugins/PPluginWidgetParent.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/net/NeckoChild.h"
#include "mozilla/Preferences.h"
#include "mozilla/PresShell.h"
#include "mozilla/ProcessHangMonitor.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TouchEvents.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/Unused.h"
#include "nsCOMPtr.h"
#include "nsContentUtils.h"
#include "nsDebug.h"
#include "nsFocusManager.h"
#include "nsFrameLoader.h"
#include "nsFrameLoaderOwner.h"
#include "nsFrameManager.h"
#include "nsIBaseWindow.h"
#include "nsIBrowser.h"
#include "nsIBrowserController.h"
#include "nsIContent.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeOwner.h"
#include "nsImportModule.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsILoadInfo.h"
#include "nsIPromptFactory.h"
#include "nsIURI.h"
#include "nsIWebBrowserChrome.h"
#include "nsIWebProtocolHandlerRegistrar.h"
#include "nsIXPConnect.h"
#include "nsIXULBrowserWindow.h"
#include "nsIAppWindow.h"
#include "nsViewManager.h"
#include "nsVariant.h"
#include "nsIWidget.h"
#include "nsNetUtil.h"
#ifndef XP_WIN
# include "nsJARProtocolHandler.h"
#endif
#include "nsPIDOMWindow.h"
#include "nsPrintfCString.h"
#include "nsQueryObject.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "PermissionMessageUtils.h"
#include "StructuredCloneData.h"
#include "ColorPickerParent.h"
#include "FilePickerParent.h"
#include "BrowserChild.h"
#include "LoadContext.h"
#include "nsNetCID.h"
#include "nsIAuthInformation.h"
#include "nsIAuthPromptCallback.h"
#include "nsAuthInformationHolder.h"
#include "nsICancelable.h"
#include "gfxUtils.h"
#include "nsILoginManagerAuthPrompter.h"
#include "nsPIWindowRoot.h"
#include "nsReadableUtils.h"
#include "nsIAuthPrompt2.h"
#include "gfxDrawable.h"
#include "ImageOps.h"
#include "UnitTransforms.h"
#include <algorithm>
#include "mozilla/NullPrincipal.h"
#include "mozilla/WebBrowserPersistDocumentParent.h"
#include "ProcessPriorityManager.h"
#include "nsString.h"
#include "IHistory.h"
#include "mozilla/dom/WindowGlobalParent.h"
#include "mozilla/dom/CanonicalBrowsingContext.h"
#include "MMPrinter.h"
#include "SessionStoreFunctions.h"
#include "mozilla/dom/CrashReport.h"
#ifdef XP_WIN
# include "mozilla/plugins/PluginWidgetParent.h"
# include "FxRWindowManager.h"
#endif
#if defined(XP_WIN) && defined(ACCESSIBILITY)
# include "mozilla/a11y/AccessibleWrap.h"
# include "mozilla/a11y/Compatibility.h"
# include "mozilla/a11y/nsWinUtils.h"
#endif
#ifdef MOZ_ANDROID_HISTORY
# include "GeckoViewHistory.h"
#endif
using namespace mozilla::dom;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::layout;
using namespace mozilla::services;
using namespace mozilla::widget;
using namespace mozilla::gfx;
using mozilla::LazyLogModule;
using mozilla::StaticAutoPtr;
using mozilla::Unused;
LazyLogModule gBrowserFocusLog("BrowserFocus");
#define LOGBROWSERFOCUS(args) \
MOZ_LOG(gBrowserFocusLog, mozilla::LogLevel::Debug, args)
/* static */
BrowserParent* BrowserParent::sFocus = nullptr;
/* static */
BrowserParent* BrowserParent::sTopLevelWebFocus = nullptr;
// The flags passed by the webProgress notifications are 16 bits shifted
// from the ones registered by webProgressListeners.
#define NOTIFY_FLAG_SHIFT 16
namespace mozilla {
namespace dom {
BrowserParent::LayerToBrowserParentTable*
BrowserParent::sLayerToBrowserParentTable = nullptr;
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(BrowserParent)
NS_INTERFACE_MAP_ENTRY(nsIAuthPromptProvider)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMEventListener)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_WEAK(BrowserParent, mLoadContext, mFrameLoader,
mBrowsingContext)
NS_IMPL_CYCLE_COLLECTING_ADDREF(BrowserParent)
NS_IMPL_CYCLE_COLLECTING_RELEASE(BrowserParent)
BrowserParent::BrowserParent(ContentParent* aManager, const TabId& aTabId,
const TabContext& aContext,
CanonicalBrowsingContext* aBrowsingContext,
uint32_t aChromeFlags)
: TabContext(aContext),
mTabId(aTabId),
mManager(aManager),
mBrowsingContext(aBrowsingContext),
mLoadContext(nullptr),
mFrameElement(nullptr),
mBrowserDOMWindow(nullptr),
mFrameLoader(nullptr),
mChromeFlags(aChromeFlags),
mBrowserBridgeParent(nullptr),
mBrowserHost(nullptr),
mContentCache(*this),
mRemoteLayerTreeOwner{},
mLayerTreeEpoch{1},
mChildToParentConversionMatrix{},
mRect(0, 0, 0, 0),
mDimensions(0, 0),
mOrientation(0),
mDPI(0),
mRounding(0),
mDefaultScale(0),
mUpdatedDimensions(false),
mSizeMode(nsSizeMode_Normal),
mClientOffset{},
mChromeOffset{},
mCreatingWindow(false),
mDelayedURL{},
mDelayedFrameScripts{},
mCursor(eCursorInvalid),
mCustomCursor{},
mCustomCursorHotspotX(0),
mCustomCursorHotspotY(0),
mVerifyDropLinks{},
mDocShellIsActive(false),
mMarkedDestroying(false),
mIsDestroyed(false),
mTabSetsCursor(false),
mPreserveLayers(false),
mRenderLayers(true),
mActiveInPriorityManager(false),
mHasLayers(false),
mHasPresented(false),
mIsReadyToHandleInputEvents(false),
mIsMouseEnterIntoWidgetEventSuppressed(false),
mSuspendedProgressEvents(false),
mSuspendMediaWhenInactive(false) {
MOZ_ASSERT(aManager);
// When the input event queue is disabled, we don't need to handle the case
// that some input events are dispatched before PBrowserConstructor.
mIsReadyToHandleInputEvents = !ContentParent::IsInputEventQueueSupported();
}
BrowserParent::~BrowserParent() = default;
/* static */
void BrowserParent::InitializeStatics() { MOZ_ASSERT(XRE_IsParentProcess()); }
/* static */
BrowserParent* BrowserParent::GetFocused() { return sFocus; }
/*static*/
BrowserParent* BrowserParent::GetFrom(nsFrameLoader* aFrameLoader) {
if (!aFrameLoader) {
return nullptr;
}
return aFrameLoader->GetBrowserParent();
}
/*static*/
BrowserParent* BrowserParent::GetFrom(PBrowserParent* aBrowserParent) {
return static_cast<BrowserParent*>(aBrowserParent);
}
/*static*/
BrowserParent* BrowserParent::GetFrom(nsIContent* aContent) {
RefPtr<nsFrameLoaderOwner> loaderOwner = do_QueryObject(aContent);
if (!loaderOwner) {
return nullptr;
}
RefPtr<nsFrameLoader> frameLoader = loaderOwner->GetFrameLoader();
return GetFrom(frameLoader);
}
/* static */
BrowserParent* BrowserParent::GetBrowserParentFromLayersId(
layers::LayersId aLayersId) {
if (!sLayerToBrowserParentTable) {
return nullptr;
}
return sLayerToBrowserParentTable->Get(uint64_t(aLayersId));
}
/*static*/
TabId BrowserParent::GetTabIdFrom(nsIDocShell* docShell) {
nsCOMPtr<nsIBrowserChild> browserChild(BrowserChild::GetFrom(docShell));
if (browserChild) {
return static_cast<BrowserChild*>(browserChild.get())->GetTabId();
}
return TabId(0);
}
void BrowserParent::AddBrowserParentToTable(layers::LayersId aLayersId,
BrowserParent* aBrowserParent) {
if (!sLayerToBrowserParentTable) {
sLayerToBrowserParentTable = new LayerToBrowserParentTable();
}
sLayerToBrowserParentTable->Put(uint64_t(aLayersId), aBrowserParent);
}
void BrowserParent::RemoveBrowserParentFromTable(layers::LayersId aLayersId) {
if (!sLayerToBrowserParentTable) {
return;
}
sLayerToBrowserParentTable->Remove(uint64_t(aLayersId));
if (sLayerToBrowserParentTable->Count() == 0) {
delete sLayerToBrowserParentTable;
sLayerToBrowserParentTable = nullptr;
}
}
already_AddRefed<nsILoadContext> BrowserParent::GetLoadContext() {
nsCOMPtr<nsILoadContext> loadContext;
if (mLoadContext) {
loadContext = mLoadContext;
} else {
bool isPrivate = mChromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW;
SetPrivateBrowsingAttributes(isPrivate);
bool useTrackingProtection = false;
if (mFrameElement) {
nsCOMPtr<nsIDocShell> docShell = mFrameElement->OwnerDoc()->GetDocShell();
if (docShell) {
docShell->GetUseTrackingProtection(&useTrackingProtection);
}
}
loadContext = new LoadContext(
GetOwnerElement(), true /* aIsContent */, isPrivate,
mChromeFlags & nsIWebBrowserChrome::CHROME_REMOTE_WINDOW,
mChromeFlags & nsIWebBrowserChrome::CHROME_FISSION_WINDOW,
useTrackingProtection, OriginAttributesRef());
mLoadContext = loadContext;
}
return loadContext.forget();
}
/**
* Will return nullptr if there is no outer window available for the
* document hosting the owner element of this BrowserParent. Also will return
* nullptr if that outer window is in the process of closing.
*/
already_AddRefed<nsPIDOMWindowOuter> BrowserParent::GetParentWindowOuter() {
nsCOMPtr<nsIContent> frame = GetOwnerElement();
if (!frame) {
return nullptr;
}
nsCOMPtr<nsPIDOMWindowOuter> parent = frame->OwnerDoc()->GetWindow();
if (!parent || parent->Closed()) {
return nullptr;
}
return parent.forget();
}
already_AddRefed<nsIWidget> BrowserParent::GetTopLevelWidget() {
if (RefPtr<Element> element = mFrameElement) {
if (PresShell* presShell = element->OwnerDoc()->GetPresShell()) {
nsViewManager* vm = presShell->GetViewManager();
nsCOMPtr<nsIWidget> widget;
vm->GetRootWidget(getter_AddRefs(widget));
return widget.forget();
}
}
return nullptr;
}
already_AddRefed<nsIWidget> BrowserParent::GetTextInputHandlingWidget() const {
if (!mFrameElement) {
return nullptr;
}
PresShell* presShell = mFrameElement->OwnerDoc()->GetPresShell();
if (!presShell) {
return nullptr;
}
nsPresContext* presContext = presShell->GetPresContext();
if (!presContext) {
return nullptr;
}
nsCOMPtr<nsIWidget> widget = presContext->GetTextInputHandlingWidget();
return widget.forget();
}
already_AddRefed<nsIWidget> BrowserParent::GetWidget() const {
if (!mFrameElement) {
return nullptr;
}
nsCOMPtr<nsIWidget> widget = nsContentUtils::WidgetForContent(mFrameElement);
if (!widget) {
widget = nsContentUtils::WidgetForDocument(mFrameElement->OwnerDoc());
}
return widget.forget();
}
already_AddRefed<nsIWidget> BrowserParent::GetDocWidget() const {
if (!mFrameElement) {
return nullptr;
}
return do_AddRef(
nsContentUtils::WidgetForDocument(mFrameElement->OwnerDoc()));
}
nsIXULBrowserWindow* BrowserParent::GetXULBrowserWindow() {
if (!mFrameElement) {
return nullptr;
}
nsCOMPtr<nsIDocShell> docShell = mFrameElement->OwnerDoc()->GetDocShell();
if (!docShell) {
return nullptr;
}
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
docShell->GetTreeOwner(getter_AddRefs(treeOwner));
if (!treeOwner) {
return nullptr;
}
nsCOMPtr<nsIAppWindow> window = do_GetInterface(treeOwner);
if (!window) {
return nullptr;
}
nsCOMPtr<nsIXULBrowserWindow> xulBrowserWindow;
window->GetXULBrowserWindow(getter_AddRefs(xulBrowserWindow));
return xulBrowserWindow;
}
uint32_t BrowserParent::GetMaxTouchPoints(Element* aElement) {
if (!aElement) {
return 0;
}
if (StaticPrefs::dom_maxtouchpoints_testing_value() >= 0) {
return StaticPrefs::dom_maxtouchpoints_testing_value();
}
nsIWidget* widget = nsContentUtils::WidgetForDocument(aElement->OwnerDoc());
return widget ? widget->GetMaxTouchPoints() : 0;
}
a11y::DocAccessibleParent* BrowserParent::GetTopLevelDocAccessible() const {
#ifdef ACCESSIBILITY
// XXX Consider managing non top level PDocAccessibles with their parent
// document accessible.
const ManagedContainer<PDocAccessibleParent>& docs =
ManagedPDocAccessibleParent();
for (auto iter = docs.ConstIter(); !iter.Done(); iter.Next()) {
auto doc = static_cast<a11y::DocAccessibleParent*>(iter.Get()->GetKey());
// We want the document for this BrowserParent even if it's for an
// embedded out-of-process iframe. Therefore, we use
// IsTopLevelInContentProcess. In contrast, using IsToplevel would only
// include documents that aren't embedded; e.g. tab documents.
if (doc->IsTopLevelInContentProcess()) {
return doc;
}
}
MOZ_ASSERT(docs.Count() == 0,
"If there isn't a top level accessible doc "
"there shouldn't be an accessible doc at all!");
#endif
return nullptr;
}
LayersId BrowserParent::GetLayersId() const {
if (!mRemoteLayerTreeOwner.IsInitialized()) {
return LayersId{};
}
return mRemoteLayerTreeOwner.GetLayersId();
}
BrowserBridgeParent* BrowserParent::GetBrowserBridgeParent() const {
return mBrowserBridgeParent;
}
BrowserHost* BrowserParent::GetBrowserHost() const { return mBrowserHost; }
ParentShowInfo BrowserParent::GetShowInfo() {
TryCacheDPIAndScale();
if (mFrameElement) {
nsAutoString name;
mFrameElement->GetAttr(kNameSpaceID_None, nsGkAtoms::name, name);
// FIXME(emilio, bug 1606660): allowfullscreen should probably move to
// OwnerShowInfo.
bool allowFullscreen =
mFrameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::allowfullscreen) ||
mFrameElement->HasAttr(kNameSpaceID_None,
nsGkAtoms::mozallowfullscreen);
bool isTransparent =
nsContentUtils::IsChromeDoc(mFrameElement->OwnerDoc()) &&
mFrameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::transparent);
return ParentShowInfo(name, allowFullscreen, false, isTransparent, mDPI,
mRounding, mDefaultScale.scale);
}
return ParentShowInfo(EmptyString(), false, false, false, mDPI, mRounding,
mDefaultScale.scale);
}
already_AddRefed<nsIPrincipal> BrowserParent::GetContentPrincipal() const {
nsCOMPtr<nsIBrowser> browser =
mFrameElement ? mFrameElement->AsBrowser() : nullptr;
NS_ENSURE_TRUE(browser, nullptr);
RefPtr<nsIPrincipal> principal;
nsresult rv;
rv = browser->GetContentPrincipal(getter_AddRefs(principal));
NS_ENSURE_SUCCESS(rv, nullptr);
return principal.forget();
}
void BrowserParent::SetOwnerElement(Element* aElement) {
// If we held previous content then unregister for its events.
RemoveWindowListeners();
// If we change top-level documents then we need to change our
// registration with them.
RefPtr<nsPIWindowRoot> curTopLevelWin, newTopLevelWin;
if (mFrameElement) {
curTopLevelWin = nsContentUtils::GetWindowRoot(mFrameElement->OwnerDoc());
}
if (aElement) {
newTopLevelWin = nsContentUtils::GetWindowRoot(aElement->OwnerDoc());
}
bool isSameTopLevelWin = curTopLevelWin == newTopLevelWin;
if (mBrowserHost && curTopLevelWin && !isSameTopLevelWin) {
curTopLevelWin->RemoveBrowser(mBrowserHost);
}
// Update to the new content, and register to listen for events from it.
mFrameElement = aElement;
if (mBrowserHost && newTopLevelWin && !isSameTopLevelWin) {
newTopLevelWin->AddBrowser(mBrowserHost);
}
if (mFrameElement) {
bool useGlobalHistory = !mFrameElement->HasAttr(
kNameSpaceID_None, nsGkAtoms::disableglobalhistory);
Unused << SendSetUseGlobalHistory(useGlobalHistory);
}
#if defined(XP_WIN) && defined(ACCESSIBILITY)
if (!mIsDestroyed) {
uintptr_t newWindowHandle = 0;
if (nsCOMPtr<nsIWidget> widget = GetWidget()) {
newWindowHandle =
reinterpret_cast<uintptr_t>(widget->GetNativeData(NS_NATIVE_WINDOW));
}
Unused << SendUpdateNativeWindowHandle(newWindowHandle);
a11y::DocAccessibleParent* doc = GetTopLevelDocAccessible();
if (doc) {
HWND hWnd = reinterpret_cast<HWND>(doc->GetEmulatedWindowHandle());
if (hWnd) {
HWND parentHwnd = reinterpret_cast<HWND>(newWindowHandle);
if (parentHwnd != ::GetParent(hWnd)) {
::SetParent(hWnd, parentHwnd);
}
}
}
}
#endif
AddWindowListeners();
TryCacheDPIAndScale();
// Try to send down WidgetNativeData, now that this BrowserParent is
// associated with a widget.
nsCOMPtr<nsIWidget> widget = GetTopLevelWidget();
if (widget) {
WindowsHandle widgetNativeData = reinterpret_cast<WindowsHandle>(
widget->GetNativeData(NS_NATIVE_SHAREABLE_WINDOW));
if (widgetNativeData) {
Unused << SendSetWidgetNativeData(widgetNativeData);
}
}
if (mRemoteLayerTreeOwner.IsInitialized()) {
mRemoteLayerTreeOwner.OwnerContentChanged();
}
// Set our BrowsingContext's embedder if we're not embedded within a
// BrowserBridgeParent.
if (!GetBrowserBridgeParent() && mBrowsingContext && mFrameElement) {
mBrowsingContext->SetEmbedderElement(mFrameElement);
}
VisitChildren([aElement](BrowserBridgeParent* aBrowser) {
if (auto* browserParent = aBrowser->GetBrowserParent()) {
browserParent->SetOwnerElement(aElement);
}
});
}
void BrowserParent::CacheFrameLoader(nsFrameLoader* aFrameLoader) {
mFrameLoader = aFrameLoader;
}
void BrowserParent::AddWindowListeners() {
if (mFrameElement) {
if (nsCOMPtr<nsPIDOMWindowOuter> window =
mFrameElement->OwnerDoc()->GetWindow()) {
nsCOMPtr<EventTarget> eventTarget = window->GetTopWindowRoot();
if (eventTarget) {
eventTarget->AddEventListener(NS_LITERAL_STRING("MozUpdateWindowPos"),
this, false, false);
eventTarget->AddEventListener(NS_LITERAL_STRING("fullscreenchange"),
this, false, false);
}
}
}
}
void BrowserParent::RemoveWindowListeners() {
if (mFrameElement && mFrameElement->OwnerDoc()->GetWindow()) {
nsCOMPtr<nsPIDOMWindowOuter> window =
mFrameElement->OwnerDoc()->GetWindow();
nsCOMPtr<EventTarget> eventTarget = window->GetTopWindowRoot();
if (eventTarget) {
eventTarget->RemoveEventListener(NS_LITERAL_STRING("MozUpdateWindowPos"),
this, false);
eventTarget->RemoveEventListener(NS_LITERAL_STRING("fullscreenchange"),
this, false);
}
}
}
void BrowserParent::DestroyInternal() {
UnsetTopLevelWebFocus(this);
RemoveWindowListeners();
#ifdef ACCESSIBILITY
if (a11y::DocAccessibleParent* tabDoc = GetTopLevelDocAccessible()) {
tabDoc->Destroy();
}
#endif
// If this fails, it's most likely due to a content-process crash,
// and auto-cleanup will kick in. Otherwise, the child side will
// destroy itself and send back __delete__().
Unused << SendDestroy();
#ifdef XP_WIN
// Let all PluginWidgets know we are tearing down. Prevents
// these objects from sending async events after the child side
// is shut down.
const ManagedContainer<PPluginWidgetParent>& kids =
ManagedPPluginWidgetParent();
for (auto iter = kids.ConstIter(); !iter.Done(); iter.Next()) {
static_cast<mozilla::plugins::PluginWidgetParent*>(iter.Get()->GetKey())
->ParentDestroy();
}
#endif
}
void BrowserParent::Destroy() {
// Aggressively release the window to avoid leaking the world in shutdown
// corner cases.
mBrowserDOMWindow = nullptr;
if (mIsDestroyed) {
return;
}
DestroyInternal();
mIsDestroyed = true;
Manager()->NotifyTabDestroying();
mMarkedDestroying = true;
}
mozilla::ipc::IPCResult BrowserParent::RecvEnsureLayersConnected(
CompositorOptions* aCompositorOptions) {
if (mRemoteLayerTreeOwner.IsInitialized()) {
mRemoteLayerTreeOwner.EnsureLayersConnected(aCompositorOptions);
}
return IPC_OK();
}
mozilla::ipc::IPCResult BrowserParent::Recv__delete__() {
MOZ_RELEASE_ASSERT(XRE_IsParentProcess());
Manager()->NotifyTabDestroyed(mTabId, mMarkedDestroying);
return IPC_OK();
}
void BrowserParent::ActorDestroy(ActorDestroyReason why) {
ContentProcessManager::GetSingleton()->UnregisterRemoteFrame(mTabId);
if (mRemoteLayerTreeOwner.IsInitialized()) {
// It's important to unmap layers after the remote browser has been
// destroyed, otherwise it may still send messages to the compositor which
// will reject them, causing assertions.
RemoveBrowserParentFromTable(mRemoteLayerTreeOwner.GetLayersId());
mRemoteLayerTreeOwner.Destroy();
}
// Even though BrowserParent::Destroy calls this, we need to do it here too in
// case of a crash.
BrowserParent::UnsetTopLevelWebFocus(this);
if (why == AbnormalShutdown) {
// dom_reporting_header must also be enabled for the report to be sent.
if (StaticPrefs::dom_reporting_crash_enabled()) {
nsCOMPtr<nsIPrincipal> principal = GetContentPrincipal();
if (principal) {
nsAutoCString crash_reason;
CrashReporter::GetAnnotation(OtherPid(),
CrashReporter::Annotation::MozCrashReason,
crash_reason);
// FIXME(arenevier): Find a less fragile way to identify that a crash
// was caused by OOM
bool is_oom = false;
if (crash_reason == "OOM" || crash_reason == "OOM!" ||
StringBeginsWith(crash_reason,
NS_LITERAL_CSTRING("[unhandlable oom]")) ||
StringBeginsWith(crash_reason,
NS_LITERAL_CSTRING("Unhandlable OOM"))) {
is_oom = true;
}
CrashReport::Deliver(principal, is_oom);
}
}
}
// Prevent executing ContentParent::NotifyTabDestroying in
// BrowserParent::Destroy() called by frameLoader->DestroyComplete() below
// when tab crashes in contentprocess because ContentParent::ActorDestroy()
// in main process will be triggered before this function
// and remove the process information that
// ContentParent::NotifyTabDestroying need from mContentParentMap.
// When tab crashes in content process,
// there is no need to call ContentParent::NotifyTabDestroying
// because the jobs in ContentParent::NotifyTabDestroying
// will be done by ContentParent::ActorDestroy.
if (XRE_IsContentProcess() && why == AbnormalShutdown && !mIsDestroyed) {
DestroyInternal();
mIsDestroyed = true;
}
// Tell our embedder that the tab is now going away unless we're an
// out-of-process iframe.
RefPtr<nsFrameLoader> frameLoader = GetFrameLoader(true);
if (frameLoader) {
ReceiveMessage(CHILD_PROCESS_SHUTDOWN_MESSAGE, false, nullptr);
if (!mBrowsingContext->GetParent()) {
// If this is a top-level BrowsingContext, tell the frameloader it's time
// to go away. Otherwise, this is a subframe crash, and we can keep the
// frameloader around.
frameLoader->DestroyComplete();
}
// If this was a crash, tell our nsFrameLoader to fire crash events.
if (why == AbnormalShutdown) {
frameLoader->MaybeNotifyCrashed(mBrowsingContext, GetIPCChannel());
if (!mBrowsingContext->IsTopContent()) {
OnSubFrameCrashed();
}
}
}
mFrameLoader = nullptr;
}
mozilla::ipc::IPCResult BrowserParent::RecvMoveFocus(
const bool& aForward, const bool& aForDocumentNavigation) {
LOGBROWSERFOCUS(("RecvMoveFocus %p, aForward: %d, aForDocumentNavigation: %d",
this, aForward, aForDocumentNavigation));
BrowserBridgeParent* bridgeParent = GetBrowserBridgeParent();
if (bridgeParent) {
mozilla::Unused << bridgeParent->SendMoveFocus(aForward,
aForDocumentNavigation);
return IPC_OK();
}
nsCOMPtr<nsIFocusManager> fm = nsFocusManager::GetFocusManager();
if (fm) {
RefPtr<Element> dummy;
uint32_t type =
aForward
? (aForDocumentNavigation
? static_cast<uint32_t>(
nsIFocusManager::MOVEFOCUS_FORWARDDOC)
: static_cast<uint32_t>(nsIFocusManager::MOVEFOCUS_FORWARD))
: (aForDocumentNavigation
? static_cast<uint32_t>(
nsIFocusManager::MOVEFOCUS_BACKWARDDOC)
: static_cast<uint32_t>(
nsIFocusManager::MOVEFOCUS_BACKWARD));
fm->MoveFocus(nullptr, mFrameElement, type, nsIFocusManager::FLAG_BYKEY,
getter_AddRefs(dummy));
}
return IPC_OK();
}
mozilla::ipc::IPCResult BrowserParent::RecvSizeShellTo(
const uint32_t& aFlags, const int32_t& aWidth, const int32_t& aHeight,
const int32_t& aShellItemWidth, const int32_t& aShellItemHeight) {
NS_ENSURE_TRUE(mFrameElement, IPC_OK());
nsCOMPtr<nsIDocShell> docShell = mFrameElement->OwnerDoc()->GetDocShell();
NS_ENSURE_TRUE(docShell, IPC_OK());
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
nsresult rv = docShell->GetTreeOwner(getter_AddRefs(treeOwner));
NS_ENSURE_SUCCESS(rv, IPC_OK());
int32_t width = aWidth;
int32_t height = aHeight;
if (aFlags & nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_CX) {
width = mDimensions.width;
}
if (aFlags & nsIEmbeddingSiteWindow::DIM_FLAGS_IGNORE_CY) {
height = mDimensions.height;
}
nsCOMPtr<nsIAppWindow> appWin(do_GetInterface(treeOwner));
NS_ENSURE_TRUE(appWin, IPC_OK());
appWin->SizeShellToWithLimit(width, height, aShellItemWidth,
aShellItemHeight);
return IPC_OK();
}
mozilla::ipc::IPCResult BrowserParent::RecvDropLinks(
nsTArray<nsString>&& aLinks) {
nsCOMPtr<nsIBrowser> browser =
mFrameElement ? mFrameElement->AsBrowser() : nullptr;
if (browser) {
// Verify that links have not been modified by the child. If links have
// not been modified then it's safe to load those links using the
// SystemPrincipal. If they have been modified by web content, then
// we use a NullPrincipal which still allows to load web links.
bool loadUsingSystemPrincipal = true;
if (aLinks.Length() != mVerifyDropLinks.Length()) {
loadUsingSystemPrincipal = false;
}
for (uint32_t i = 0; i < aLinks.Length(); i++) {
if (loadUsingSystemPrincipal) {
if (!aLinks[i].Equals(mVerifyDropLinks[i])) {
loadUsingSystemPrincipal = false;
}
}
}
mVerifyDropLinks.Clear();
nsCOMPtr<nsIPrincipal> triggeringPrincipal;
if (loadUsingSystemPrincipal) {
triggeringPrincipal = nsContentUtils::GetSystemPrincipal();
} else {
triggeringPrincipal = NullPrincipal::CreateWithoutOriginAttributes();
}
browser->DropLinks(aLinks, triggeringPrincipal);
}
return IPC_OK();
}
mozilla::ipc::IPCResult BrowserParent::RecvEvent(const RemoteDOMEvent& aEvent) {
RefPtr<Event> event = aEvent.mEvent;
NS_ENSURE_TRUE(event, IPC_OK());
RefPtr<EventTarget> target = mFrameElement;
NS_ENSURE_TRUE(target, IPC_OK());
event->SetOwner(target);
target->DispatchEvent(*event);
return IPC_OK();
}
bool BrowserParent::SendLoadRemoteScript(const nsString& aURL,
const bool& aRunInGlobalScope) {
if (mCreatingWindow) {
mDelayedFrameScripts.AppendElement(
FrameScriptInfo(aURL, aRunInGlobalScope));
return true;
}
MOZ_ASSERT(mDelayedFrameScripts.IsEmpty());
return PBrowserParent::SendLoadRemoteScript(aURL, aRunInGlobalScope);
}
void BrowserParent::LoadURL(nsIURI* aURI) {
MOZ_ASSERT(aURI);
if (mIsDestroyed) {
return;
}
nsCString spec;
aURI->GetSpec(spec);
if (mCreatingWindow) {
// Don't send the message if the child wants to load its own URL.
MOZ_ASSERT(mDelayedURL.IsEmpty());
mDelayedURL = spec;
return;
}
Unused << SendLoadURL(spec, GetShowInfo());
}
void BrowserParent::ResumeLoad(uint64_t aPendingSwitchID) {
MOZ_ASSERT(aPendingSwitchID != 0);
if (NS_WARN_IF(mIsDestroyed)) {
return;
}
Unused << SendResumeLoad(aPendingSwitchID, GetShowInfo());
}
void BrowserParent::InitRendering() {
if (mRemoteLayerTreeOwner.IsInitialized()) {
return;
}
mRemoteLayerTreeOwner.Initialize(this);
layers::LayersId layersId = mRemoteLayerTreeOwner.GetLayersId();
AddBrowserParentToTable(layersId, this);
RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
if (frameLoader) {
nsIFrame* frame = frameLoader->GetPrimaryFrameOfOwningContent();
if (frame) {
frame->InvalidateFrame();
}
}
TextureFactoryIdentifier textureFactoryIdentifier;
mRemoteLayerTreeOwner.GetTextureFactoryIdentifier(&textureFactoryIdentifier);
Unused << SendInitRendering(textureFactoryIdentifier, layersId,
mRemoteLayerTreeOwner.GetCompositorOptions(),
mRemoteLayerTreeOwner.IsLayersConnected());
RefPtr<nsIWidget> widget = GetTopLevelWidget();
if (widget) {
ScreenIntMargin safeAreaInsets = widget->GetSafeAreaInsets();
Unused << SendSafeAreaInsetsChanged(safeAreaInsets);
}
#if defined(MOZ_WIDGET_ANDROID)
if (XRE_IsParentProcess()) {
MOZ_ASSERT(widget);
Unused << SendDynamicToolbarMaxHeightChanged(
widget->GetDynamicToolbarMaxHeight());
}
#endif
}
bool BrowserParent::AttachLayerManager() {
return !!mRemoteLayerTreeOwner.AttachLayerManager();
}
void BrowserParent::MaybeShowFrame() {
RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
if (!frameLoader) {
return;
}
frameLoader->MaybeShowFrame();
}
bool BrowserParent::Show(const OwnerShowInfo& aOwnerInfo) {
mDimensions = aOwnerInfo.size();
if (mIsDestroyed) {
return false;
}
MOZ_ASSERT(mRemoteLayerTreeOwner.IsInitialized());
if (!mRemoteLayerTreeOwner.AttachLayerManager()) {
return false;
}
mSizeMode = aOwnerInfo.sizeMode();
Unused << SendShow(GetShowInfo(), aOwnerInfo);
return true;
}
mozilla::ipc::IPCResult BrowserParent::RecvSetDimensions(
const uint32_t& aFlags, const int32_t& aX, const int32_t& aY,
const int32_t& aCx, const int32_t& aCy, const double& aScale) {
MOZ_ASSERT(!(aFlags & nsIEmbeddingSiteWindow::DIM_FLAGS_SIZE_INNER),
"We should never see DIM_FLAGS_SIZE_INNER here!");
NS_ENSURE_TRUE(mFrameElement, IPC_OK());
nsCOMPtr<nsIDocShell> docShell = mFrameElement->OwnerDoc()->GetDocShell();
NS_ENSURE_TRUE(docShell, IPC_OK());
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
docShell->GetTreeOwner(getter_AddRefs(treeOwner));
nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = do_QueryInterface(treeOwner);
NS_ENSURE_TRUE(treeOwnerAsWin, IPC_OK());
// We only care about the parameters that actually changed, see more details
// in `BrowserChild::SetDimensions()`.
// Note that `BrowserChild::SetDimensions()` may be called before receiving
// our `SendUIResolutionChanged()` call. Therefore, if given each cordinate
// shouldn't be ignored, we need to recompute it if DPI has been changed.
// And also note that don't use `mDefaultScale.scale` here since it may be
// different from the result of `GetUnscaledDevicePixelsPerCSSPixel()`.
double currentScale;