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