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gecko-dev
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gecko-dev/dom/ipc/TabChild.cpp

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100 KiB
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/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8; -*- */
/* vim: set sw=2 sts=2 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "base/basictypes.h"
#include "TabChild.h"
#include "Layers.h"
#include "ContentChild.h"
#include "TabParent.h"
#include "mozilla/Preferences.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/EventListenerManager.h"
#include "mozilla/dom/workers/ServiceWorkerManager.h"
#include "mozilla/dom/indexedDB/PIndexedDBPermissionRequestChild.h"
#include "mozilla/plugins/PluginWidgetChild.h"
#include "mozilla/ipc/DocumentRendererChild.h"
#include "mozilla/ipc/FileDescriptorUtils.h"
#include "mozilla/layers/APZCCallbackHelper.h"
#include "mozilla/layers/APZCTreeManager.h"
#include "mozilla/layers/APZEventState.h"
#include "mozilla/layers/CompositorChild.h"
#include "mozilla/layers/ImageBridgeChild.h"
#include "mozilla/layers/ShadowLayers.h"
#include "mozilla/layout/RenderFrameChild.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TouchEvents.h"
#include "mozilla/unused.h"
#include "mozIApplication.h"
#include "nsContentUtils.h"
#include "nsDocShell.h"
#include "nsEmbedCID.h"
#include <algorithm>
#ifdef MOZ_CRASHREPORTER
#include "nsExceptionHandler.h"
#endif
#include "nsFilePickerProxy.h"
#include "mozilla/dom/Element.h"
#include "nsIBaseWindow.h"
#include "nsIBrowserDOMWindow.h"
#include "nsICachedFileDescriptorListener.h"
#include "nsIDocumentInlines.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDOMChromeWindow.h"
#include "nsIDOMDocument.h"
#include "nsIDOMEvent.h"
#include "nsIDOMWindow.h"
#include "nsIDOMWindowUtils.h"
#include "nsFocusManager.h"
#include "nsIDocShell.h"
#include "nsIFrame.h"
#include "nsIURI.h"
#include "nsIURIFixup.h"
#include "nsCDefaultURIFixup.h"
#include "nsIWebBrowser.h"
#include "nsIWebBrowserFocus.h"
#include "nsIWebBrowserSetup.h"
#include "nsIWebProgress.h"
#include "nsIXULRuntime.h"
#include "nsPIDOMWindow.h"
#include "nsPIWindowRoot.h"
#include "nsLayoutUtils.h"
#include "nsPrintfCString.h"
#include "nsThreadUtils.h"
#include "nsWeakReference.h"
#include "nsWindowWatcher.h"
#include "PermissionMessageUtils.h"
#include "PuppetWidget.h"
#include "StructuredCloneUtils.h"
#include "nsViewportInfo.h"
#include "nsILoadContext.h"
#include "ipc/nsGUIEventIPC.h"
#include "mozilla/gfx/Matrix.h"
#include "UnitTransforms.h"
#include "ClientLayerManager.h"
#include "LayersLogging.h"
#include "nsIOService.h"
#include "nsDOMClassInfoID.h"
#include "nsColorPickerProxy.h"
#include "nsPresShell.h"
#include "nsIAppsService.h"
#include "nsNetUtil.h"
#include "nsIPermissionManager.h"
#include "nsIScriptError.h"
#define BROWSER_ELEMENT_CHILD_SCRIPT \
NS_LITERAL_STRING("chrome://global/content/BrowserElementChild.js")
#define TABC_LOG(...)
// #define TABC_LOG(...) printf_stderr("TABC: " __VA_ARGS__)
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::dom::ipc;
using namespace mozilla::dom::workers;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::layout;
using namespace mozilla::docshell;
using namespace mozilla::widget;
using namespace mozilla::jsipc;
NS_IMPL_ISUPPORTS(ContentListener, nsIDOMEventListener)
static const CSSSize kDefaultViewportSize(980, 480);
static const char BROWSER_ZOOM_TO_RECT[] = "browser-zoom-to-rect";
static const char BEFORE_FIRST_PAINT[] = "before-first-paint";
typedef nsDataHashtable<nsUint64HashKey, TabChild*> TabChildMap;
static TabChildMap* sTabChildren;
class TabChild::DelayedFireContextMenuEvent final : public nsITimerCallback
{
public:
NS_DECL_ISUPPORTS
explicit DelayedFireContextMenuEvent(TabChild* tabChild)
: mTabChild(tabChild)
{
}
NS_IMETHODIMP Notify(nsITimer*) override
{
mTabChild->FireContextMenuEvent();
return NS_OK;
}
private:
~DelayedFireContextMenuEvent()
{
}
// Raw pointer is safe here because this object is held by a Timer, which is
// held by TabChild, we won't stay alive if TabChild dies.
TabChild *mTabChild;
};
NS_IMPL_ISUPPORTS(TabChild::DelayedFireContextMenuEvent,
nsITimerCallback)
TabChildBase::TabChildBase()
: mContentDocumentIsDisplayed(false)
, mTabChildGlobal(nullptr)
, mInnerSize(0, 0)
{
mozilla::HoldJSObjects(this);
}
TabChildBase::~TabChildBase()
{
mAnonymousGlobalScopes.Clear();
mozilla::DropJSObjects(this);
}
NS_IMPL_CYCLE_COLLECTION_CLASS(TabChildBase)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(TabChildBase)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTabChildGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAnonymousGlobalScopes)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWebBrowserChrome)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(TabChildBase)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTabChildGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWebBrowserChrome)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(TabChildBase)
for (uint32_t i = 0; i < tmp->mAnonymousGlobalScopes.Length(); ++i) {
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mAnonymousGlobalScopes[i])
}
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TabChildBase)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(TabChildBase)
NS_IMPL_CYCLE_COLLECTING_RELEASE(TabChildBase)
void
TabChildBase::InitializeRootMetrics()
{
// Calculate a really simple resolution that we probably won't
// be keeping, as well as putting the scroll offset back to
// the top-left of the page.
mLastRootMetrics.SetViewport(CSSRect(CSSPoint(), kDefaultViewportSize));
mLastRootMetrics.mCompositionBounds = ParentLayerRect(
ParentLayerPoint(),
ParentLayerSize(ViewAs<ParentLayerPixel>(mInnerSize, PixelCastJustification::ScreenIsParentLayerForRoot)));
mLastRootMetrics.SetZoom(CSSToParentLayerScale2D(mLastRootMetrics.CalculateIntrinsicScale()));
mLastRootMetrics.SetDevPixelsPerCSSPixel(WebWidget()->GetDefaultScale());
// We use ParentLayerToLayerScale(1) below in order to turn the
// async zoom amount into the gecko zoom amount.
mLastRootMetrics.SetCumulativeResolution(mLastRootMetrics.GetZoom() / mLastRootMetrics.GetDevPixelsPerCSSPixel() * ParentLayerToLayerScale(1));
// This is the root layer, so the cumulative resolution is the same
// as the resolution.
mLastRootMetrics.SetPresShellResolution(mLastRootMetrics.GetCumulativeResolution().ToScaleFactor().scale);
mLastRootMetrics.SetScrollOffset(CSSPoint(0, 0));
TABC_LOG("After InitializeRootMetrics, mLastRootMetrics is %s\n",
Stringify(mLastRootMetrics).c_str());
}
void
TabChildBase::SetCSSViewport(const CSSSize& aSize)
{
mOldViewportSize = aSize;
TABC_LOG("Setting CSS viewport to %s\n", Stringify(aSize).c_str());
if (mContentDocumentIsDisplayed) {
if (nsCOMPtr<nsIPresShell> shell = GetPresShell()) {
nsLayoutUtils::SetCSSViewport(shell, aSize);
}
}
}
CSSSize
TabChildBase::GetPageSize(nsCOMPtr<nsIDocument> aDocument, const CSSSize& aViewport)
{
nsCOMPtr<Element> htmlDOMElement = aDocument->GetHtmlElement();
HTMLBodyElement* bodyDOMElement = aDocument->GetBodyElement();
if (!htmlDOMElement && !bodyDOMElement) {
// For non-HTML content (e.g. SVG), just assume page size == viewport size.
return aViewport;
}
int32_t htmlWidth = 0, htmlHeight = 0;
if (htmlDOMElement) {
htmlWidth = htmlDOMElement->ScrollWidth();
htmlHeight = htmlDOMElement->ScrollHeight();
}
int32_t bodyWidth = 0, bodyHeight = 0;
if (bodyDOMElement) {
bodyWidth = bodyDOMElement->ScrollWidth();
bodyHeight = bodyDOMElement->ScrollHeight();
}
return CSSSize(std::max(htmlWidth, bodyWidth),
std::max(htmlHeight, bodyHeight));
}
// For the root frame, Screen and ParentLayer pixels are interchangeable.
// nsViewportInfo stores zoom values as CSSToScreenScale (because it's a
// data structure specific to the root frame), while FrameMetrics and
// ZoomConstraints store zoom values as CSSToParentLayerScale (because they
// are not specific to the root frame). We define convenience functions for
// converting between the two. As the name suggests, they should only be used
// when dealing with the root frame!
CSSToScreenScale ConvertScaleForRoot(CSSToParentLayerScale aScale) {
return ViewTargetAs<ScreenPixel>(aScale, PixelCastJustification::ScreenIsParentLayerForRoot);
}
CSSToParentLayerScale ConvertScaleForRoot(CSSToScreenScale aScale) {
return ViewTargetAs<ParentLayerPixel>(aScale, PixelCastJustification::ScreenIsParentLayerForRoot);
}
bool
TabChildBase::HandlePossibleViewportChange(const ScreenIntSize& aOldScreenSize)
{
if (!gfxPrefs::AsyncPanZoomEnabled()) {
return false;
}
TABC_LOG("HandlePossibleViewportChange aOldScreenSize=%s mInnerSize=%s\n",
Stringify(aOldScreenSize).c_str(), Stringify(mInnerSize).c_str());
nsCOMPtr<nsIDocument> document(GetDocument());
if (!document) {
return false;
}
nsViewportInfo viewportInfo = nsContentUtils::GetViewportInfo(document, mInnerSize);
uint32_t presShellId = 0;
mozilla::layers::FrameMetrics::ViewID viewId = FrameMetrics::NULL_SCROLL_ID;
bool scrollIdentifiersValid = APZCCallbackHelper::GetOrCreateScrollIdentifiers(
document->GetDocumentElement(), &presShellId, &viewId);
if (scrollIdentifiersValid) {
ZoomConstraints constraints(
viewportInfo.IsZoomAllowed(),
viewportInfo.IsDoubleTapZoomAllowed(),
ConvertScaleForRoot(viewportInfo.GetMinZoom()),
ConvertScaleForRoot(viewportInfo.GetMaxZoom()));
DoUpdateZoomConstraints(presShellId,
viewId,
/* isRoot = */ true,
constraints);
}
float screenW = mInnerSize.width;
float screenH = mInnerSize.height;
CSSSize viewport(viewportInfo.GetSize());
// We're not being displayed in any way; don't bother doing anything because
// that will just confuse future adjustments.
if (!screenW || !screenH) {
return false;
}
TABC_LOG("HandlePossibleViewportChange mOldViewportSize=%s viewport=%s\n",
Stringify(mOldViewportSize).c_str(), Stringify(viewport).c_str());
CSSSize oldBrowserSize = mOldViewportSize;
mLastRootMetrics.SetViewport(CSSRect(
mLastRootMetrics.GetViewport().TopLeft(), viewport));
if (oldBrowserSize == CSSSize()) {
oldBrowserSize = kDefaultViewportSize;
}
SetCSSViewport(viewport);
// If this page has not been painted yet, then this must be getting run
// because a meta-viewport element was added (via the DOMMetaAdded handler).
// in this case, we should not do anything that forces a reflow (see bug
// 759678) such as requesting the page size or sending a viewport update. this
// code will get run again in the before-first-paint handler and that point we
// will run though all of it. the reason we even bother executing up to this
// point on the DOMMetaAdded handler is so that scripts that use
// window.innerWidth before they are painted have a correct value (bug
// 771575).
if (!mContentDocumentIsDisplayed) {
return false;
}
ScreenIntSize oldScreenSize = aOldScreenSize;
if (oldScreenSize == ScreenIntSize()) {
oldScreenSize = mInnerSize;
}
FrameMetrics metrics(mLastRootMetrics);
metrics.SetViewport(CSSRect(CSSPoint(), viewport));
metrics.mCompositionBounds = ParentLayerRect(
ParentLayerPoint(),
ParentLayerSize(ViewAs<ParentLayerPixel>(mInnerSize, PixelCastJustification::ScreenIsParentLayerForRoot)));
metrics.SetRootCompositionSize(
ScreenSize(mInnerSize) * ScreenToLayoutDeviceScale(1.0f) / metrics.GetDevPixelsPerCSSPixel());
// This change to the zoom accounts for all types of changes I can conceive:
// 1. screen size changes, CSS viewport does not (pages with no meta viewport
// or a fixed size viewport)
// 2. screen size changes, CSS viewport also does (pages with a device-width
// viewport)
// 3. screen size remains constant, but CSS viewport changes (meta viewport
// tag is added or removed)
// 4. neither screen size nor CSS viewport changes
//
// In all of these cases, we maintain how much actual content is visible
// within the screen width. Note that "actual content" may be different with
// respect to CSS pixels because of the CSS viewport size changing.
float oldIntrinsicScale =
std::max(oldScreenSize.width / oldBrowserSize.width,
oldScreenSize.height / oldBrowserSize.height);
metrics.ZoomBy(metrics.CalculateIntrinsicScale().scale / oldIntrinsicScale);
// Changing the zoom when we're not doing a first paint will get ignored
// by AsyncPanZoomController and causes a blurry flash.
nsCOMPtr<nsIPresShell> shell = GetPresShell();
bool isFirstPaint = true;
if (shell) {
isFirstPaint = shell->GetIsFirstPaint();
}
if (isFirstPaint) {
// FIXME/bug 799585(?): GetViewportInfo() returns a defaultZoom of
// 0.0 to mean "did not calculate a zoom". In that case, we default
// it to the intrinsic scale.
if (viewportInfo.GetDefaultZoom().scale < 0.01f) {
viewportInfo.SetDefaultZoom(ConvertScaleForRoot(metrics.CalculateIntrinsicScale()));
}
CSSToScreenScale defaultZoom = viewportInfo.GetDefaultZoom();
MOZ_ASSERT(viewportInfo.GetMinZoom() <= defaultZoom &&
defaultZoom <= viewportInfo.GetMaxZoom());
metrics.SetZoom(CSSToParentLayerScale2D(ConvertScaleForRoot(defaultZoom)));
metrics.SetScrollId(viewId);
}
if (shell) {
if (nsPresContext* context = shell->GetPresContext()) {
metrics.SetDevPixelsPerCSSPixel(CSSToLayoutDeviceScale(
(float)nsPresContext::AppUnitsPerCSSPixel() / context->AppUnitsPerDevPixel()));
}
}
metrics.SetCumulativeResolution(metrics.GetZoom()
/ metrics.GetDevPixelsPerCSSPixel()
* ParentLayerToLayerScale(1));
// This is the root layer, so the cumulative resolution is the same
// as the resolution.
metrics.SetPresShellResolution(metrics.GetCumulativeResolution().ToScaleFactor().scale);
if (shell) {
nsLayoutUtils::SetResolutionAndScaleTo(shell, metrics.GetPresShellResolution());
nsLayoutUtils::SetScrollPositionClampingScrollPortSize(shell,
metrics.CalculateCompositedSizeInCssPixels());
}
// The call to GetPageSize forces a resize event to content, so we need to
// make sure that we have the right CSS viewport and
// scrollPositionClampingScrollPortSize set up before that happens.
CSSSize pageSize = GetPageSize(document, viewport);
if (!pageSize.width) {
// Return early rather than divide by 0.
return false;
}
metrics.SetScrollableRect(CSSRect(CSSPoint(), pageSize));
// Calculate a display port _after_ having a scrollable rect because the
// display port is clamped to the scrollable rect.
metrics.SetDisplayPortMargins(APZCTreeManager::CalculatePendingDisplayPort(
// The page must have been refreshed in some way such as a new document or
// new CSS viewport, so we know that there's no velocity, acceleration, and
// we have no idea how long painting will take.
metrics, ParentLayerPoint(0.0f, 0.0f), 0.0));
metrics.SetUseDisplayPortMargins();
// Force a repaint with these metrics. This, among other things, sets the
// displayport, so we start with async painting.
mLastRootMetrics = ProcessUpdateFrame(metrics);
if (viewportInfo.IsZoomAllowed() && scrollIdentifiersValid) {
// If the CSS viewport is narrower than the screen (i.e. width <= device-width)
// then we disable double-tap-to-zoom behaviour.
bool allowDoubleTapZoom = (viewport.width > screenW / metrics.GetDevPixelsPerCSSPixel().scale);
if (allowDoubleTapZoom != viewportInfo.IsDoubleTapZoomAllowed()) {
viewportInfo.SetAllowDoubleTapZoom(allowDoubleTapZoom);
ZoomConstraints constraints(
viewportInfo.IsZoomAllowed(),
viewportInfo.IsDoubleTapZoomAllowed(),
ConvertScaleForRoot(viewportInfo.GetMinZoom()),
ConvertScaleForRoot(viewportInfo.GetMaxZoom()));
DoUpdateZoomConstraints(presShellId,
viewId,
/* isRoot = */ true,
constraints);
}
}
return true;
}
already_AddRefed<nsIDOMWindowUtils>
TabChildBase::GetDOMWindowUtils()
{
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
nsCOMPtr<nsIDOMWindowUtils> utils = do_GetInterface(window);
return utils.forget();
}
already_AddRefed<nsIDocument>
TabChildBase::GetDocument() const
{
nsCOMPtr<nsIDOMDocument> domDoc;
WebNavigation()->GetDocument(getter_AddRefs(domDoc));
nsCOMPtr<nsIDocument> doc(do_QueryInterface(domDoc));
return doc.forget();
}
already_AddRefed<nsIPresShell>
TabChildBase::GetPresShell() const
{
nsCOMPtr<nsIPresShell> result;
if (nsCOMPtr<nsIDocument> doc = GetDocument()) {
result = doc->GetShell();
}
return result.forget();
}
void
TabChildBase::DispatchMessageManagerMessage(const nsAString& aMessageName,
const nsAString& aJSONData)
{
AutoSafeJSContext cx;
JS::Rooted<JS::Value> json(cx, JSVAL_NULL);
StructuredCloneData cloneData;
JSAutoStructuredCloneBuffer buffer;
if (JS_ParseJSON(cx,
static_cast<const char16_t*>(aJSONData.BeginReading()),
aJSONData.Length(),
&json)) {
WriteStructuredClone(cx, json, buffer, cloneData.mClosure);
cloneData.mData = buffer.data();
cloneData.mDataLength = buffer.nbytes();
}
nsCOMPtr<nsIXPConnectJSObjectHolder> kungFuDeathGrip(GetGlobal());
// Let the BrowserElementScrolling helper (if it exists) for this
// content manipulate the frame state.
nsRefPtr<nsFrameMessageManager> mm =
static_cast<nsFrameMessageManager*>(mTabChildGlobal->mMessageManager.get());
mm->ReceiveMessage(static_cast<EventTarget*>(mTabChildGlobal), nullptr,
aMessageName, false, &cloneData, nullptr, nullptr, nullptr);
}
bool
TabChildBase::UpdateFrameHandler(const FrameMetrics& aFrameMetrics)
{
MOZ_ASSERT(aFrameMetrics.GetScrollId() != FrameMetrics::NULL_SCROLL_ID);
if (aFrameMetrics.GetIsRoot()) {
if (nsCOMPtr<nsIPresShell> shell = GetPresShell()) {
// Guard against stale updates (updates meant for a pres shell which
// has since been torn down and destroyed).
if (aFrameMetrics.GetPresShellId() == shell->GetPresShellId()) {
mLastRootMetrics = ProcessUpdateFrame(aFrameMetrics);
return true;
}
}
} else {
// aFrameMetrics.mIsRoot is false, so we are trying to update a subframe.
// This requires special handling.
nsCOMPtr<nsIContent> content = nsLayoutUtils::FindContentFor(
aFrameMetrics.GetScrollId());
if (content) {
FrameMetrics newSubFrameMetrics(aFrameMetrics);
APZCCallbackHelper::UpdateSubFrame(content, newSubFrameMetrics);
return true;
}
}
return true;
}
FrameMetrics
TabChildBase::ProcessUpdateFrame(const FrameMetrics& aFrameMetrics)
{
if (!mGlobal || !mTabChildGlobal) {
return aFrameMetrics;
}
FrameMetrics newMetrics = aFrameMetrics;
if (nsCOMPtr<nsIPresShell> presShell = GetPresShell()) {
APZCCallbackHelper::UpdateRootFrame(presShell, newMetrics);
}
CSSSize cssCompositedSize = newMetrics.CalculateCompositedSizeInCssPixels();
// The BrowserElementScrolling helper must know about these updated metrics
// for other functions it performs, such as double tap handling.
// Note, %f must not be used because it is locale specific!
nsString data;
data.AppendPrintf("{ \"x\" : %d", NS_lround(newMetrics.GetScrollOffset().x));
data.AppendPrintf(", \"y\" : %d", NS_lround(newMetrics.GetScrollOffset().y));
data.AppendLiteral(", \"viewport\" : ");
data.AppendLiteral("{ \"width\" : ");
data.AppendFloat(newMetrics.GetViewport().width);
data.AppendLiteral(", \"height\" : ");
data.AppendFloat(newMetrics.GetViewport().height);
data.AppendLiteral(" }");
data.AppendLiteral(", \"cssPageRect\" : ");
data.AppendLiteral("{ \"x\" : ");
data.AppendFloat(newMetrics.GetScrollableRect().x);
data.AppendLiteral(", \"y\" : ");
data.AppendFloat(newMetrics.GetScrollableRect().y);
data.AppendLiteral(", \"width\" : ");
data.AppendFloat(newMetrics.GetScrollableRect().width);
data.AppendLiteral(", \"height\" : ");
data.AppendFloat(newMetrics.GetScrollableRect().height);
data.AppendLiteral(" }");
data.AppendLiteral(", \"cssCompositedRect\" : ");
data.AppendLiteral("{ \"width\" : ");
data.AppendFloat(cssCompositedSize.width);
data.AppendLiteral(", \"height\" : ");
data.AppendFloat(cssCompositedSize.height);
data.AppendLiteral(" }");
data.AppendLiteral(" }");
DispatchMessageManagerMessage(NS_LITERAL_STRING("Viewport:Change"), data);
return newMetrics;
}
NS_IMETHODIMP
ContentListener::HandleEvent(nsIDOMEvent* aEvent)
{
RemoteDOMEvent remoteEvent;
remoteEvent.mEvent = do_QueryInterface(aEvent);
NS_ENSURE_STATE(remoteEvent.mEvent);
mTabChild->SendEvent(remoteEvent);
return NS_OK;
}
class TabChild::CachedFileDescriptorInfo
{
struct PathOnlyComparatorHelper
{
bool Equals(const nsAutoPtr<CachedFileDescriptorInfo>& a,
const CachedFileDescriptorInfo& b) const
{
return a->mPath == b.mPath;
}
};
struct PathAndCallbackComparatorHelper
{
bool Equals(const nsAutoPtr<CachedFileDescriptorInfo>& a,
const CachedFileDescriptorInfo& b) const
{
return a->mPath == b.mPath &&
a->mCallback == b.mCallback;
}
};
public:
nsString mPath;
FileDescriptor mFileDescriptor;
nsCOMPtr<nsICachedFileDescriptorListener> mCallback;
bool mCanceled;
explicit CachedFileDescriptorInfo(const nsAString& aPath)
: mPath(aPath), mCanceled(false)
{ }
CachedFileDescriptorInfo(const nsAString& aPath,
const FileDescriptor& aFileDescriptor)
: mPath(aPath), mFileDescriptor(aFileDescriptor), mCanceled(false)
{ }
CachedFileDescriptorInfo(const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback)
: mPath(aPath), mCallback(aCallback), mCanceled(false)
{ }
PathOnlyComparatorHelper PathOnlyComparator() const
{
return PathOnlyComparatorHelper();
}
PathAndCallbackComparatorHelper PathAndCallbackComparator() const
{
return PathAndCallbackComparatorHelper();
}
void FireCallback() const
{
mCallback->OnCachedFileDescriptor(mPath, mFileDescriptor);
}
};
class TabChild::CachedFileDescriptorCallbackRunnable : public nsRunnable
{
typedef TabChild::CachedFileDescriptorInfo CachedFileDescriptorInfo;
nsAutoPtr<CachedFileDescriptorInfo> mInfo;
public:
explicit CachedFileDescriptorCallbackRunnable(CachedFileDescriptorInfo* aInfo)
: mInfo(aInfo)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aInfo);
MOZ_ASSERT(!aInfo->mPath.IsEmpty());
MOZ_ASSERT(aInfo->mCallback);
}
void Dispatch()
{
MOZ_ASSERT(NS_IsMainThread());
nsresult rv = NS_DispatchToCurrentThread(this);
NS_ENSURE_SUCCESS_VOID(rv);
}
private:
NS_IMETHOD Run()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mInfo);
mInfo->FireCallback();
return NS_OK;
}
};
class TabChild::DelayedDeleteRunnable final
: public nsRunnable
{
nsRefPtr<TabChild> mTabChild;
public:
explicit DelayedDeleteRunnable(TabChild* aTabChild)
: mTabChild(aTabChild)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aTabChild);
}
private:
~DelayedDeleteRunnable()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mTabChild);
}
NS_IMETHOD
Run()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mTabChild);
// Check in case ActorDestroy was called after RecvDestroy message.
if (mTabChild->IPCOpen()) {
unused << PBrowserChild::Send__delete__(mTabChild);
}
mTabChild = nullptr;
return NS_OK;
}
};
namespace {
StaticRefPtr<TabChild> sPreallocatedTab;
std::map<TabId, nsRefPtr<TabChild>>&
NestedTabChildMap()
{
MOZ_ASSERT(NS_IsMainThread());
static std::map<TabId, nsRefPtr<TabChild>> sNestedTabChildMap;
return sNestedTabChildMap;
}
} // anonymous namespace
already_AddRefed<TabChild>
TabChild::FindTabChild(const TabId& aTabId)
{
auto iter = NestedTabChildMap().find(aTabId);
if (iter == NestedTabChildMap().end()) {
return nullptr;
}
nsRefPtr<TabChild> tabChild = iter->second;
return tabChild.forget();
}
/*static*/ void
TabChild::PreloadSlowThings()
{
MOZ_ASSERT(!sPreallocatedTab);
// Pass nullptr to aManager since at this point the TabChild is
// not connected to any manager. Any attempt to use the TabChild
// in IPC will crash.
nsRefPtr<TabChild> tab(new TabChild(nullptr,
TabId(0),
TabContext(), /* chromeFlags */ 0));
if (!NS_SUCCEEDED(tab->Init()) ||
!tab->InitTabChildGlobal(DONT_LOAD_SCRIPTS)) {
return;
}
// Just load and compile these scripts, but don't run them.
tab->TryCacheLoadAndCompileScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
// Load, compile, and run these scripts.
tab->RecvLoadRemoteScript(
NS_LITERAL_STRING("chrome://global/content/preload.js"),
true);
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(tab->WebNavigation());
if (nsIPresShell* presShell = docShell->GetPresShell()) {
// Initialize and do an initial reflow of the about:blank
// PresShell to let it preload some things for us.
presShell->Initialize(0, 0);
nsIDocument* doc = presShell->GetDocument();
doc->FlushPendingNotifications(Flush_Layout);
// ... but after it's done, make sure it doesn't do any more
// work.
presShell->MakeZombie();
}
sPreallocatedTab = tab;
ClearOnShutdown(&sPreallocatedTab);
}
/*static*/ void
TabChild::PostForkPreload()
{
// Preallocated Tab can be null if we are forked directly from b2g. In such
// case we don't need to preload anything, just return.
if (!sPreallocatedTab) {
return;
}
// Rebuild connections to parent.
sPreallocatedTab->RecvLoadRemoteScript(
NS_LITERAL_STRING("chrome://global/content/post-fork-preload.js"),
true);
}
/*static*/ already_AddRefed<TabChild>
TabChild::Create(nsIContentChild* aManager,
const TabId& aTabId,
const TabContext &aContext,
uint32_t aChromeFlags)
{
if (sPreallocatedTab &&
sPreallocatedTab->mChromeFlags == aChromeFlags &&
aContext.IsBrowserOrApp()) {
nsRefPtr<TabChild> child = sPreallocatedTab.get();
sPreallocatedTab = nullptr;
MOZ_ASSERT(!child->mTriedBrowserInit);
child->mManager = aManager;
child->SetTabId(aTabId);
child->SetTabContext(aContext);
child->NotifyTabContextUpdated();
return child.forget();
}
nsRefPtr<TabChild> iframe = new TabChild(aManager, aTabId,
aContext, aChromeFlags);
return NS_SUCCEEDED(iframe->Init()) ? iframe.forget() : nullptr;
}
class TabChildSetAllowedTouchBehaviorCallback : public SetAllowedTouchBehaviorCallback {
public:
explicit TabChildSetAllowedTouchBehaviorCallback(TabChild* aTabChild)
: mTabChild(do_GetWeakReference(static_cast<nsITabChild*>(aTabChild)))
{}
void Run(uint64_t aInputBlockId, const nsTArray<TouchBehaviorFlags>& aFlags) const override {
if (nsCOMPtr<nsITabChild> tabChild = do_QueryReferent(mTabChild)) {
static_cast<TabChild*>(tabChild.get())->SendSetAllowedTouchBehavior(aInputBlockId, aFlags);
}
}
private:
nsWeakPtr mTabChild;
};
class TabChildContentReceivedInputBlockCallback : public ContentReceivedInputBlockCallback {
public:
explicit TabChildContentReceivedInputBlockCallback(TabChild* aTabChild)
: mTabChild(do_GetWeakReference(static_cast<nsITabChild*>(aTabChild)))
{}
void Run(const ScrollableLayerGuid& aGuid, uint64_t aInputBlockId, bool aPreventDefault) const override {
if (nsCOMPtr<nsITabChild> tabChild = do_QueryReferent(mTabChild)) {
static_cast<TabChild*>(tabChild.get())->SendContentReceivedInputBlock(aGuid, aInputBlockId, aPreventDefault);
}
}
private:
nsWeakPtr mTabChild;
};
TabChild::TabChild(nsIContentChild* aManager,
const TabId& aTabId,
const TabContext& aContext,
uint32_t aChromeFlags)
: TabContext(aContext)
, mRemoteFrame(nullptr)
, mManager(aManager)
, mChromeFlags(aChromeFlags)
, mLayersId(0)
, mOuterRect(0, 0, 0, 0)
, mActivePointerId(-1)
, mAppPackageFileDescriptorRecved(false)
, mLastBackgroundColor(NS_RGB(255, 255, 255))
, mDidFakeShow(false)
, mNotified(false)
, mTriedBrowserInit(false)
, mOrientation(eScreenOrientation_PortraitPrimary)
, mUpdateHitRegion(false)
, mIgnoreKeyPressEvent(false)
, mSetAllowedTouchBehaviorCallback(new TabChildSetAllowedTouchBehaviorCallback(this))
, mHasValidInnerSize(false)
, mDestroyed(false)
, mUniqueId(aTabId)
, mDPI(0)
, mDefaultScale(0)
, mIPCOpen(true)
, mParentIsActive(false)
{
// preloaded TabChild should not be added to child map
if (mUniqueId) {
MOZ_ASSERT(NestedTabChildMap().find(mUniqueId) == NestedTabChildMap().end());
NestedTabChildMap()[mUniqueId] = this;
}
}
NS_IMETHODIMP
TabChild::HandleEvent(nsIDOMEvent* aEvent)
{
nsAutoString eventType;
aEvent->GetType(eventType);
if (eventType.EqualsLiteral("DOMMetaAdded")) {
// This meta data may or may not have been a meta viewport tag. If it was,
// we should handle it immediately.
HandlePossibleViewportChange(mInnerSize);
} else if (eventType.EqualsLiteral("FullZoomChange")) {
HandlePossibleViewportChange(mInnerSize);
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::Observe(nsISupports *aSubject,
const char *aTopic,
const char16_t *aData)
{
if (!strcmp(aTopic, BROWSER_ZOOM_TO_RECT)) {
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aSubject));
nsCOMPtr<nsITabChild> tabChild(TabChild::GetFrom(docShell));
if (tabChild == this) {
nsCOMPtr<nsIDocument> doc(GetDocument());
uint32_t presShellId;
ViewID viewId;
if (APZCCallbackHelper::GetOrCreateScrollIdentifiers(doc->GetDocumentElement(),
&presShellId, &viewId)) {
CSSRect rect;
sscanf(NS_ConvertUTF16toUTF8(aData).get(),
"{\"x\":%f,\"y\":%f,\"w\":%f,\"h\":%f}",
&rect.x, &rect.y, &rect.width, &rect.height);
SendZoomToRect(presShellId, viewId, rect);
}
}
} else if (!strcmp(aTopic, BEFORE_FIRST_PAINT)) {
if (gfxPrefs::AsyncPanZoomEnabled()) {
nsCOMPtr<nsIDocument> subject(do_QueryInterface(aSubject));
nsCOMPtr<nsIDocument> doc(GetDocument());
if (SameCOMIdentity(subject, doc)) {
nsCOMPtr<nsIPresShell> shell(doc->GetShell());
if (shell) {
shell->SetIsFirstPaint(true);
}
mContentDocumentIsDisplayed = true;
// In some cases before-first-paint gets called before
// RecvUpdateDimensions is called and therefore before we have an
// mInnerSize value set. In such cases defer initializing the viewport
// until we we get an inner size.
if (HasValidInnerSize()) {
InitializeRootMetrics();
if (shell) {
nsLayoutUtils::SetResolutionAndScaleTo(shell, mLastRootMetrics.GetPresShellResolution());
}
HandlePossibleViewportChange(mInnerSize);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
uint32_t aStateFlags,
nsresult aStatus)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnProgressChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
int32_t aCurSelfProgress,
int32_t aMaxSelfProgress,
int32_t aCurTotalProgress,
int32_t aMaxTotalProgress)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnLocationChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsIURI *aLocation,
uint32_t aFlags)
{
if (!gfxPrefs::AsyncPanZoomEnabled()) {
return NS_OK;
}
nsCOMPtr<nsIDOMWindow> window;
aWebProgress->GetDOMWindow(getter_AddRefs(window));
if (!window) {
return NS_OK;
}
nsCOMPtr<nsIDOMDocument> progressDoc;
window->GetDocument(getter_AddRefs(progressDoc));
if (!progressDoc) {
return NS_OK;
}
nsCOMPtr<nsIDOMDocument> domDoc;
WebNavigation()->GetDocument(getter_AddRefs(domDoc));
if (!domDoc || !SameCOMIdentity(domDoc, progressDoc)) {
return NS_OK;
}
nsCOMPtr<nsIURIFixup> urifixup(do_GetService(NS_URIFIXUP_CONTRACTID));
if (!urifixup) {
return NS_OK;
}
nsCOMPtr<nsIURI> exposableURI;
urifixup->CreateExposableURI(aLocation, getter_AddRefs(exposableURI));
if (!exposableURI) {
return NS_OK;
}
if (!(aFlags & nsIWebProgressListener::LOCATION_CHANGE_SAME_DOCUMENT)) {
mContentDocumentIsDisplayed = false;
} else if (mLastURI != nullptr) {
bool exposableEqualsLast, exposableEqualsNew;
exposableURI->Equals(mLastURI.get(), &exposableEqualsLast);
exposableURI->Equals(aLocation, &exposableEqualsNew);
if (exposableEqualsLast && !exposableEqualsNew) {
mContentDocumentIsDisplayed = false;
}
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnStatusChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsresult aStatus,
const char16_t* aMessage)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnSecurityChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
uint32_t aState)
{
NS_NOTREACHED("not implemented in TabChild");
return NS_OK;
}
bool
TabChild::DoUpdateZoomConstraints(const uint32_t& aPresShellId,
const ViewID& aViewId,
const bool& aIsRoot,
const ZoomConstraints& aConstraints)
{
return SendUpdateZoomConstraints(aPresShellId,
aViewId,
aIsRoot,
aConstraints);
}
nsresult
TabChild::Init()
{
nsCOMPtr<nsIWebBrowser> webBrowser = do_CreateInstance(NS_WEBBROWSER_CONTRACTID);
if (!webBrowser) {
NS_ERROR("Couldn't create a nsWebBrowser?");
return NS_ERROR_FAILURE;
}
webBrowser->SetContainerWindow(this);
mWebNav = do_QueryInterface(webBrowser);
NS_ASSERTION(mWebNav, "nsWebBrowser doesn't implement nsIWebNavigation?");
nsCOMPtr<nsIDocShellTreeItem> docShellItem(do_QueryInterface(WebNavigation()));
docShellItem->SetItemType(nsIDocShellTreeItem::typeContentWrapper);
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
if (!baseWindow) {
NS_ERROR("mWebNav doesn't QI to nsIBaseWindow");
return NS_ERROR_FAILURE;
}
mWidget = nsIWidget::CreatePuppetWidget(this);
if (!mWidget) {
NS_ERROR("couldn't create fake widget");
return NS_ERROR_FAILURE;
}
mWidget->Create(
nullptr, 0, // no parents
gfx::IntRect(gfx::IntPoint(0, 0), gfx::IntSize(0, 0)),
nullptr // HandleWidgetEvent
);
baseWindow->InitWindow(0, mWidget, 0, 0, 0, 0);
baseWindow->Create();
NotifyTabContextUpdated();
// IPC uses a WebBrowser object for which DNS prefetching is turned off
// by default. But here we really want it, so enable it explicitly
nsCOMPtr<nsIWebBrowserSetup> webBrowserSetup =
do_QueryInterface(baseWindow);
if (webBrowserSetup) {
webBrowserSetup->SetProperty(nsIWebBrowserSetup::SETUP_ALLOW_DNS_PREFETCH,
true);
} else {
NS_WARNING("baseWindow doesn't QI to nsIWebBrowserSetup, skipping "
"DNS prefetching enable step.");
}
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
MOZ_ASSERT(docShell);
docShell->SetAffectPrivateSessionLifetime(
mChromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_LIFETIME);
nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(WebNavigation());
MOZ_ASSERT(loadContext);
loadContext->SetPrivateBrowsing(
mChromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW);
loadContext->SetRemoteTabs(
mChromeFlags & nsIWebBrowserChrome::CHROME_REMOTE_WINDOW);
nsCOMPtr<nsIWebProgress> webProgress = do_GetInterface(docShell);
NS_ENSURE_TRUE(webProgress, NS_ERROR_FAILURE);
webProgress->AddProgressListener(this, nsIWebProgress::NOTIFY_LOCATION);
// Few lines before, baseWindow->Create() will end up creating a new
// window root in nsGlobalWindow::SetDocShell.
// Then this chrome event handler, will be inherited to inner windows.
// We want to also set it to the docshell so that inner windows
// and any code that has access to the docshell
// can all listen to the same chrome event handler.
// XXX: ideally, we would set a chrome event handler earlier,
// and all windows, even the root one, will use the docshell one.
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsCOMPtr<EventTarget> chromeHandler =
do_QueryInterface(window->GetChromeEventHandler());
docShell->SetChromeEventHandler(chromeHandler);
mAPZEventState = new APZEventState(mWidget,
new TabChildContentReceivedInputBlockCallback(this));
return NS_OK;
}
void
TabChild::NotifyTabContextUpdated()
{
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
MOZ_ASSERT(docShell);
if (docShell) {
// nsDocShell will do the right thing if we pass NO_APP_ID or
// UNKNOWN_APP_ID for aOwnOrContainingAppId.
if (IsBrowserElement()) {
docShell->SetIsBrowserInsideApp(BrowserOwnerAppId());
} else {
docShell->SetIsApp(OwnAppId());
}
}
}
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TabChild)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome2)
NS_INTERFACE_MAP_ENTRY(nsIEmbeddingSiteWindow)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChromeFocus)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_ENTRY(nsIWindowProvider)
NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
NS_INTERFACE_MAP_ENTRY(nsITabChild)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY(nsITooltipListener)
NS_INTERFACE_MAP_END_INHERITING(TabChildBase)
NS_IMPL_ADDREF_INHERITED(TabChild, TabChildBase);
NS_IMPL_RELEASE_INHERITED(TabChild, TabChildBase);
NS_IMETHODIMP
TabChild::SetStatus(uint32_t aStatusType, const char16_t* aStatus)
{
return SetStatusWithContext(aStatusType,
aStatus ? static_cast<const nsString &>(nsDependentString(aStatus))
: EmptyString(),
nullptr);
}
NS_IMETHODIMP
TabChild::GetWebBrowser(nsIWebBrowser** aWebBrowser)
{
NS_NOTREACHED("TabChild::GetWebBrowser not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SetWebBrowser(nsIWebBrowser* aWebBrowser)
{
NS_NOTREACHED("TabChild::SetWebBrowser not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::GetChromeFlags(uint32_t* aChromeFlags)
{
*aChromeFlags = mChromeFlags;
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetChromeFlags(uint32_t aChromeFlags)
{
NS_NOTREACHED("trying to SetChromeFlags from content process?");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::DestroyBrowserWindow()
{
NS_NOTREACHED("TabChild::DestroyBrowserWindow not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SizeBrowserTo(int32_t aCX, int32_t aCY)
{
NS_NOTREACHED("TabChild::SizeBrowserTo not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::ShowAsModal()
{
NS_NOTREACHED("TabChild::ShowAsModal not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::IsWindowModal(bool* aRetVal)
{
*aRetVal = false;
return NS_OK;
}
NS_IMETHODIMP
TabChild::ExitModalEventLoop(nsresult aStatus)
{
NS_NOTREACHED("TabChild::ExitModalEventLoop not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SetStatusWithContext(uint32_t aStatusType,
const nsAString& aStatusText,
nsISupports* aStatusContext)
{
// We can only send the status after the ipc machinery is set up,
// mRemoteFrame is a good indicator.
if (mRemoteFrame)
SendSetStatus(aStatusType, nsString(aStatusText));
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetDimensions(uint32_t aFlags, int32_t aX, int32_t aY,
int32_t aCx, int32_t aCy)
{
unused << PBrowserChild::SendSetDimensions(aFlags, aX, aY, aCx, aCy);
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetDimensions(uint32_t aFlags, int32_t* aX,
int32_t* aY, int32_t* aCx, int32_t* aCy)
{
if (aX) {
*aX = mOuterRect.x;
}
if (aY) {
*aY = mOuterRect.y;
}
if (aCx) {
*aCx = mOuterRect.width;
}
if (aCy) {
*aCy = mOuterRect.height;
}
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetFocus()
{
NS_WARNING("TabChild::SetFocus not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::GetVisibility(bool* aVisibility)
{
*aVisibility = true;
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetVisibility(bool aVisibility)
{
// should the platform support this? Bug 666365
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetTitle(char16_t** aTitle)
{
NS_NOTREACHED("TabChild::GetTitle not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::SetTitle(const char16_t* aTitle)
{
// JavaScript sends the "DOMTitleChanged" event to the parent
// via the message manager.
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetSiteWindow(void** aSiteWindow)
{
NS_NOTREACHED("TabChild::GetSiteWindow not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::Blur()
{
NS_WARNING("TabChild::Blur not supported in TabChild");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
TabChild::FocusNextElement()
{
SendMoveFocus(true);
return NS_OK;
}
NS_IMETHODIMP
TabChild::FocusPrevElement()
{
SendMoveFocus(false);
return NS_OK;
}
NS_IMETHODIMP
TabChild::GetInterface(const nsIID & aIID, void **aSink)
{
if (aIID.Equals(NS_GET_IID(nsIWebBrowserChrome3))) {
NS_IF_ADDREF(((nsISupports *) (*aSink = mWebBrowserChrome)));
return NS_OK;
}
// XXXbz should we restrict the set of interfaces we hand out here?
// See bug 537429
return QueryInterface(aIID, aSink);
}
NS_IMETHODIMP
TabChild::ProvideWindow(nsIDOMWindow* aParent, uint32_t aChromeFlags,
bool aCalledFromJS,
bool aPositionSpecified, bool aSizeSpecified,
nsIURI* aURI, const nsAString& aName,
const nsACString& aFeatures, bool* aWindowIsNew,
nsIDOMWindow** aReturn)
{
*aReturn = nullptr;
// If aParent is inside an <iframe mozbrowser> or <iframe mozapp> and this
// isn't a request to open a modal-type window, we're going to create a new
// <iframe mozbrowser/mozapp> and return its window here.
nsCOMPtr<nsIDocShell> docshell = do_GetInterface(aParent);
bool iframeMoz = (docshell && docshell->GetIsInBrowserOrApp() &&
!(aChromeFlags & (nsIWebBrowserChrome::CHROME_MODAL |
nsIWebBrowserChrome::CHROME_OPENAS_DIALOG |
nsIWebBrowserChrome::CHROME_OPENAS_CHROME)));
if (!iframeMoz) {
int32_t openLocation =
nsWindowWatcher::GetWindowOpenLocation(aParent, aChromeFlags, aCalledFromJS,
aPositionSpecified, aSizeSpecified);
// If it turns out we're opening in the current browser, just hand over the
// current browser's docshell.
if (openLocation == nsIBrowserDOMWindow::OPEN_CURRENTWINDOW) {
nsCOMPtr<nsIWebBrowser> browser = do_GetInterface(WebNavigation());
*aWindowIsNew = false;
return browser->GetContentDOMWindow(aReturn);
}
}
// Note that ProvideWindowCommon may return NS_ERROR_ABORT if the
// open window call was canceled. It's important that we pass this error
// code back to our caller.
return ProvideWindowCommon(aParent,
iframeMoz,
aChromeFlags,
aCalledFromJS,
aPositionSpecified,
aSizeSpecified,
aURI,
aName,
aFeatures,
aWindowIsNew,
aReturn);
}
nsresult
TabChild::ProvideWindowCommon(nsIDOMWindow* aOpener,
bool aIframeMoz,
uint32_t aChromeFlags,
bool aCalledFromJS,
bool aPositionSpecified,
bool aSizeSpecified,
nsIURI* aURI,
const nsAString& aName,
const nsACString& aFeatures,
bool* aWindowIsNew,
nsIDOMWindow** aReturn)
{
*aReturn = nullptr;
ContentChild* cc = ContentChild::GetSingleton();
const TabId openerTabId = GetTabId();
// We must use PopupIPCTabContext here; ContentParent will not accept the
// result of this->AsIPCTabContext() (which will be a
// BrowserFrameIPCTabContext or an AppFrameIPCTabContext), for security
// reasons.
PopupIPCTabContext context;
context.opener() = openerTabId;
context.isBrowserElement() = IsBrowserElement();
IPCTabContext ipcContext(context);
TabId tabId;
cc->SendAllocateTabId(openerTabId,
ipcContext,
cc->GetID(),
&tabId);
nsRefPtr<TabChild> newChild = new TabChild(ContentChild::GetSingleton(), tabId,
/* TabContext */ *this, aChromeFlags);
if (NS_FAILED(newChild->Init())) {
return NS_ERROR_ABORT;
}
context.opener() = this;
unused << Manager()->SendPBrowserConstructor(
// We release this ref in DeallocPBrowserChild
nsRefPtr<TabChild>(newChild).forget().take(),
tabId, IPCTabContext(context), aChromeFlags,
cc->GetID(), cc->IsForApp(), cc->IsForBrowser());
nsAutoCString spec;
if (aURI) {
aURI->GetSpec(spec);
}
NS_ConvertUTF8toUTF16 url(spec);
nsString name(aName);
nsAutoCString features(aFeatures);
nsTArray<FrameScriptInfo> frameScripts;
nsCString urlToLoad;
if (aIframeMoz) {
newChild->SendBrowserFrameOpenWindow(this, url, name,
NS_ConvertUTF8toUTF16(features),
aWindowIsNew);
} else {
nsCOMPtr<nsIDOMDocument> domDoc;
aOpener->GetDocument(getter_AddRefs(domDoc));
if (!domDoc) {
NS_ERROR("Could retrieve document from nsIBaseWindow");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDocument> doc;
doc = do_QueryInterface(domDoc);
if (!doc) {
NS_ERROR("Document from nsIBaseWindow didn't QI to nsIDocument");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIURI> baseURI = doc->GetDocBaseURI();
if (!baseURI) {
NS_ERROR("nsIDocument didn't return a base URI");
return NS_ERROR_FAILURE;
}
nsAutoCString baseURIString;
baseURI->GetSpec(baseURIString);
// We can assume that if content is requesting to open a window from a remote
// tab, then we want to enforce that the new window is also a remote tab.
features.AppendLiteral(",remote");
if (!SendCreateWindow(newChild,
aChromeFlags, aCalledFromJS, aPositionSpecified,
aSizeSpecified, url,
name, NS_ConvertUTF8toUTF16(features),
NS_ConvertUTF8toUTF16(baseURIString),
aWindowIsNew,
&frameScripts,
&urlToLoad)) {
return NS_ERROR_NOT_AVAILABLE;
}
}
if (!*aWindowIsNew) {
PBrowserChild::Send__delete__(newChild);
return NS_ERROR_ABORT;
}
TextureFactoryIdentifier textureFactoryIdentifier;
uint64_t layersId = 0;
PRenderFrameChild* renderFrame = newChild->SendPRenderFrameConstructor();
newChild->SendGetRenderFrameInfo(renderFrame,
&textureFactoryIdentifier,
&layersId);
if (layersId == 0) { // if renderFrame is invalid.
PRenderFrameChild::Send__delete__(renderFrame);
renderFrame = nullptr;
}
// Unfortunately we don't get a window unless we've shown the frame. That's
// pretty bogus; see bug 763602.
newChild->DoFakeShow(textureFactoryIdentifier, layersId, renderFrame);
for (size_t i = 0; i < frameScripts.Length(); i++) {
FrameScriptInfo& info = frameScripts[i];
if (!newChild->RecvLoadRemoteScript(info.url(), info.runInGlobalScope())) {
MOZ_CRASH();
}
}
if (!urlToLoad.IsEmpty()) {
newChild->RecvLoadURL(urlToLoad, BrowserConfiguration());
}
nsCOMPtr<nsIDOMWindow> win = do_GetInterface(newChild->WebNavigation());
win.forget(aReturn);
return NS_OK;
}
bool
TabChild::HasValidInnerSize()
{
return mHasValidInnerSize;
}
void
TabChild::DestroyWindow()
{
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
if (baseWindow)
baseWindow->Destroy();
// NB: the order of mWidget->Destroy() and mRemoteFrame->Destroy()
// is important: we want to kill off remote layers before their
// frames
if (mWidget) {
mWidget->Destroy();
}
if (mRemoteFrame) {
mRemoteFrame->Destroy();
mRemoteFrame = nullptr;
}
if (mLayersId != 0) {
MOZ_ASSERT(sTabChildren);
sTabChildren->Remove(mLayersId);
if (!sTabChildren->Count()) {
delete sTabChildren;
sTabChildren = nullptr;
}
mLayersId = 0;
}
for (uint32_t index = 0, count = mCachedFileDescriptorInfos.Length();
index < count;
index++) {
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(!info->mCallback);
if (info->mFileDescriptor.IsValid()) {
MOZ_ASSERT(!info->mCanceled);
nsRefPtr<CloseFileRunnable> runnable =
new CloseFileRunnable(info->mFileDescriptor);
runnable->Dispatch();
}
}
mCachedFileDescriptorInfos.Clear();
}
void
TabChild::ActorDestroy(ActorDestroyReason why)
{
mIPCOpen = false;
DestroyWindow();
if (mTabChildGlobal) {
// The messageManager relays messages via the TabChild which
// no longer exists.
static_cast<nsFrameMessageManager*>
(mTabChildGlobal->mMessageManager.get())->Disconnect();
mTabChildGlobal->mMessageManager = nullptr;
}
CompositorChild* compositorChild = static_cast<CompositorChild*>(CompositorChild::Get());
compositorChild->CancelNotifyAfterRemotePaint(this);
if (GetTabId() != 0) {
NestedTabChildMap().erase(GetTabId());
}
}
TabChild::~TabChild()
{
DestroyWindow();
nsCOMPtr<nsIWebBrowser> webBrowser = do_QueryInterface(WebNavigation());
if (webBrowser) {
webBrowser->SetContainerWindow(nullptr);
}
}
void
TabChild::SetProcessNameToAppName()
{
nsCOMPtr<mozIApplication> app = GetOwnApp();
if (!app) {
return;
}
nsAutoString appName;
nsresult rv = app->GetName(appName);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to retrieve app name");
return;
}
ContentChild::GetSingleton()->SetProcessName(appName, true);
}
bool
TabChild::IsRootContentDocument()
{
// A TabChild is a "root content document" if it's
//
// - <iframe mozapp> not inside another <iframe mozapp>,
// - <iframe mozbrowser> (not mozapp), or
// - a vanilla remote frame (<html:iframe remote=true> or <xul:browser
// remote=true>).
//
// Put another way, an iframe is /not/ a "root content document" iff it's a
// mozapp inside a mozapp. (This corresponds exactly to !HasAppOwnerApp.)
//
// Note that we're lying through our teeth here (thus the scare quotes).
// <html:iframe remote=true> or <xul:browser remote=true> inside another
// content iframe is not actually a root content document, but we say it is.
//
// We do this because we make a remote frame opaque iff
// IsRootContentDocument(), and making vanilla remote frames transparent
// breaks our remote reftests.
return !HasAppOwnerApp();
}
bool
TabChild::RecvLoadURL(const nsCString& aURI,
const BrowserConfiguration& aConfiguration)
{
if (!InitTabChildGlobal()) {
return false;
}
SetProcessNameToAppName();
nsresult rv = WebNavigation()->LoadURI(NS_ConvertUTF8toUTF16(aURI).get(),
nsIWebNavigation::LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP |
nsIWebNavigation::LOAD_FLAGS_DISALLOW_INHERIT_OWNER,
nullptr, nullptr, nullptr);
if (NS_FAILED(rv)) {
NS_WARNING("WebNavigation()->LoadURI failed. Eating exception, what else can I do?");
}
#ifdef MOZ_CRASHREPORTER
CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("URL"), aURI);
#endif
nsRefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
MOZ_ASSERT(swm);
swm->LoadRegistrations(aConfiguration.serviceWorkerRegistrations());
return true;
}
bool
TabChild::RecvCacheFileDescriptor(const nsString& aPath,
const FileDescriptor& aFileDescriptor)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(!mAppPackageFileDescriptorRecved);
mAppPackageFileDescriptorRecved = true;
// aFileDescriptor may be invalid here, but the callback will choose how to
// handle it.
// First see if we already have a request for this path.
const CachedFileDescriptorInfo search(aPath);
size_t index =
mCachedFileDescriptorInfos.IndexOf(search, 0,
search.PathOnlyComparator());
if (index == mCachedFileDescriptorInfos.NoIndex) {
// We haven't had any requests for this path yet. Assume that we will
// in a little while and save the file descriptor here.
mCachedFileDescriptorInfos.AppendElement(
new CachedFileDescriptorInfo(aPath, aFileDescriptor));
return true;
}
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(info);
MOZ_ASSERT(info->mPath == aPath);
MOZ_ASSERT(!info->mFileDescriptor.IsValid());
MOZ_ASSERT(info->mCallback);
// If this callback has been canceled then we can simply close the file
// descriptor and forget about the callback.
if (info->mCanceled) {
// Only close if this is a valid file descriptor.
if (aFileDescriptor.IsValid()) {
nsRefPtr<CloseFileRunnable> runnable =
new CloseFileRunnable(aFileDescriptor);
runnable->Dispatch();
}
} else {
// Not canceled so fire the callback.
info->mFileDescriptor = aFileDescriptor;
// We don't need a runnable here because we should already be at the top
// of the event loop. Just fire immediately.
info->FireCallback();
}
mCachedFileDescriptorInfos.RemoveElementAt(index);
return true;
}
bool
TabChild::GetCachedFileDescriptor(const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(aCallback);
// First see if we've already received a cached file descriptor for this
// path.
const CachedFileDescriptorInfo search(aPath);
size_t index =
mCachedFileDescriptorInfos.IndexOf(search, 0,
search.PathOnlyComparator());
if (index == mCachedFileDescriptorInfos.NoIndex) {
// We haven't received a file descriptor for this path yet. Assume that
// we will in a little while and save the request here.
if (!mAppPackageFileDescriptorRecved) {
mCachedFileDescriptorInfos.AppendElement(
new CachedFileDescriptorInfo(aPath, aCallback));
}
return false;
}
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(info);
MOZ_ASSERT(info->mPath == aPath);
// If we got a previous request for this file descriptor that was then
// canceled, insert the new request ahead of the old in the queue so that
// it will be serviced first.
if (info->mCanceled) {
// This insertion will change the array and invalidate |info|, so
// be careful not to touch |info| after this.
mCachedFileDescriptorInfos.InsertElementAt(index,
new CachedFileDescriptorInfo(aPath, aCallback));
return false;
}
MOZ_ASSERT(!info->mCallback);
info->mCallback = aCallback;
nsRefPtr<CachedFileDescriptorCallbackRunnable> runnable =
new CachedFileDescriptorCallbackRunnable(info.forget());
runnable->Dispatch();
mCachedFileDescriptorInfos.RemoveElementAt(index);
return true;
}
void
TabChild::CancelCachedFileDescriptorCallback(
const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(aCallback);
if (mAppPackageFileDescriptorRecved) {
// Already received cached file descriptor for the app package. Nothing to do here.
return;
}
const CachedFileDescriptorInfo search(aPath, aCallback);
size_t index =
mCachedFileDescriptorInfos.IndexOf(search, 0,
search.PathAndCallbackComparator());
if (index == mCachedFileDescriptorInfos.NoIndex) {
// Nothing to do here.
return;
}
nsAutoPtr<CachedFileDescriptorInfo>& info =
mCachedFileDescriptorInfos[index];
MOZ_ASSERT(info);
MOZ_ASSERT(info->mPath == aPath);
MOZ_ASSERT(!info->mFileDescriptor.IsValid());
MOZ_ASSERT(info->mCallback == aCallback);
MOZ_ASSERT(!info->mCanceled);
// No need to hold the callback any longer.
info->mCallback = nullptr;
// Set this flag so that we will close the file descriptor when it arrives.
info->mCanceled = true;
}
void
TabChild::DoFakeShow(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
PRenderFrameChild* aRenderFrame)
{
ShowInfo info(EmptyString(), false, false, 0, 0);
RecvShow(ScreenIntSize(0, 0), info, aTextureFactoryIdentifier,
aLayersId, aRenderFrame, mParentIsActive);
mDidFakeShow = true;
}
void
TabChild::ApplyShowInfo(const ShowInfo& aInfo)
{
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
if (docShell) {
nsCOMPtr<nsIDocShellTreeItem> item = do_GetInterface(docShell);
if (IsBrowserOrApp()) {
// B2G allows window.name to be set by changing the name attribute on the
// <iframe mozbrowser> element. window.open calls cause this attribute to
// be set to the correct value. A normal <xul:browser> element has no such
// attribute. The data we get here comes from reading the attribute, so we
// shouldn't trust it for <xul:browser> elements.
item->SetName(aInfo.name());
}
docShell->SetFullscreenAllowed(aInfo.fullscreenAllowed());
if (aInfo.isPrivate()) {
bool nonBlank;
docShell->GetHasLoadedNonBlankURI(&nonBlank);
if (nonBlank) {
nsContentUtils::ReportToConsoleNonLocalized(
NS_LITERAL_STRING("We should not switch to Private Browsing after loading a document."),
nsIScriptError::warningFlag,
NS_LITERAL_CSTRING("mozprivatebrowsing"),
nullptr);
} else {
nsCOMPtr<nsILoadContext> context = do_GetInterface(docShell);
context->SetUsePrivateBrowsing(true);
}
}
}
mDPI = aInfo.dpi();
mDefaultScale = aInfo.defaultScale();
}
#ifdef MOZ_WIDGET_GONK
void
TabChild::MaybeRequestPreinitCamera()
{
// Check if this tab will use the `camera` permission.
nsCOMPtr<nsIAppsService> appsService = do_GetService("@mozilla.org/AppsService;1");
if (NS_WARN_IF(!appsService)) {
return;
}
nsString manifestUrl = EmptyString();
appsService->GetManifestURLByLocalId(OwnAppId(), manifestUrl);
nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
if (NS_WARN_IF(!secMan)) {
return;
}
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), manifestUrl);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
nsCOMPtr<nsIPrincipal> principal;
rv = secMan->GetAppCodebasePrincipal(uri, OwnAppId(), false,
getter_AddRefs(principal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
uint16_t status = nsIPrincipal::APP_STATUS_NOT_INSTALLED;
principal->GetAppStatus(&status);
bool isCertified = status == nsIPrincipal::APP_STATUS_CERTIFIED;
if (!isCertified) {
return;
}
nsCOMPtr<nsIPermissionManager> permMgr = services::GetPermissionManager();
if (NS_WARN_IF(!permMgr)) {
return;
}
uint32_t permission = nsIPermissionManager::DENY_ACTION;
permMgr->TestPermissionFromPrincipal(principal, "camera", &permission);
bool hasPermission = permission == nsIPermissionManager::ALLOW_ACTION;
if (!hasPermission) {
return;
}
nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();
if (NS_WARN_IF(!observerService)) {
return;
}
observerService->NotifyObservers(nullptr, "init-camera-hw", nullptr);
}
#endif
bool
TabChild::RecvShow(const ScreenIntSize& aSize,
const ShowInfo& aInfo,
const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
PRenderFrameChild* aRenderFrame,
const bool& aParentIsActive)
{
MOZ_ASSERT((!mDidFakeShow && aRenderFrame) || (mDidFakeShow && !aRenderFrame));
if (mDidFakeShow) {
ApplyShowInfo(aInfo);
RecvParentActivated(aParentIsActive);
return true;
}
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(WebNavigation());
if (!baseWindow) {
NS_ERROR("WebNavigation() doesn't QI to nsIBaseWindow");
return false;
}
if (!InitRenderingState(aTextureFactoryIdentifier, aLayersId, aRenderFrame)) {
// We can fail to initialize our widget if the <browser
// remote> has already been destroyed, and we couldn't hook
// into the parent-process's layer system. That's not a fatal
// error.
return true;
}
baseWindow->SetVisibility(true);
#ifdef MOZ_WIDGET_GONK
MaybeRequestPreinitCamera();
#endif
bool res = InitTabChildGlobal();
ApplyShowInfo(aInfo);
RecvParentActivated(aParentIsActive);
return res;
}
bool
TabChild::RecvUpdateDimensions(const nsIntRect& rect, const ScreenIntSize& size,
const ScreenOrientation& orientation, const LayoutDeviceIntPoint& chromeDisp)
{
if (!mRemoteFrame) {
return true;
}
mOuterRect = rect;
mChromeDisp = chromeDisp;
bool initialSizing = !HasValidInnerSize()
&& (size.width != 0 && size.height != 0);
if (initialSizing) {
mHasValidInnerSize = true;
}
mOrientation = orientation;
ScreenIntSize oldScreenSize = mInnerSize;
mInnerSize = size;
mWidget->Resize(rect.x + chromeDisp.x, rect.y + chromeDisp.y, size.width, size.height,
true);
nsCOMPtr<nsIBaseWindow> baseWin = do_QueryInterface(WebNavigation());
baseWin->SetPositionAndSize(0, 0, size.width, size.height,
true);
if (initialSizing && mContentDocumentIsDisplayed) {
// If this is the first time we're getting a valid mInnerSize, and the
// before-first-paint event has already been handled, then we need to set
// up our default viewport here. See the corresponding call to
// InitializeRootMetrics in the before-first-paint handler.
InitializeRootMetrics();
}
HandlePossibleViewportChange(oldScreenSize);
return true;
}
bool
TabChild::RecvUpdateFrame(const FrameMetrics& aFrameMetrics)
{
return TabChildBase::UpdateFrameHandler(aFrameMetrics);
}
bool
TabChild::RecvRequestFlingSnap(const FrameMetrics::ViewID& aScrollId,
const mozilla::CSSPoint& aDestination)
{
APZCCallbackHelper::RequestFlingSnap(aScrollId, aDestination);
return true;
}
bool
TabChild::RecvAcknowledgeScrollUpdate(const ViewID& aScrollId,
const uint32_t& aScrollGeneration)
{
APZCCallbackHelper::AcknowledgeScrollUpdate(aScrollId, aScrollGeneration);
return true;
}
bool
TabChild::RecvHandleDoubleTap(const CSSPoint& aPoint, const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid)
{
TABC_LOG("Handling double tap at %s with %p %p\n",
Stringify(aPoint).c_str(), mGlobal.get(), mTabChildGlobal.get());
if (!mGlobal || !mTabChildGlobal) {
return true;
}
// Note: there is nothing to do with the modifiers here, as we are not
// synthesizing any sort of mouse event.
CSSPoint point = APZCCallbackHelper::ApplyCallbackTransform(aPoint, aGuid,
GetPresShellResolution());
nsString data;
data.AppendLiteral("{ \"x\" : ");
data.AppendFloat(point.x);
data.AppendLiteral(", \"y\" : ");
data.AppendFloat(point.y);
data.AppendLiteral(" }");
DispatchMessageManagerMessage(NS_LITERAL_STRING("Gesture:DoubleTap"), data);
return true;
}
bool
TabChild::RecvHandleSingleTap(const CSSPoint& aPoint, const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid)
{
if (mGlobal && mTabChildGlobal) {
mAPZEventState->ProcessSingleTap(aPoint, aModifiers, aGuid, GetPresShellResolution());
}
return true;
}
bool
TabChild::RecvHandleLongTap(const CSSPoint& aPoint, const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid, const uint64_t& aInputBlockId)
{
if (mGlobal && mTabChildGlobal) {
mAPZEventState->ProcessLongTap(GetPresShell(), aPoint, aModifiers, aGuid,
aInputBlockId, GetPresShellResolution());
}
return true;
}
bool
TabChild::RecvNotifyAPZStateChange(const ViewID& aViewId,
const APZStateChange& aChange,
const int& aArg)
{
mAPZEventState->ProcessAPZStateChange(GetDocument(), aViewId, aChange, aArg);
return true;
}
bool
TabChild::RecvActivate()
{
nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
browser->Activate();
return true;
}
bool TabChild::RecvDeactivate()
{
nsCOMPtr<nsIWebBrowserFocus> browser = do_QueryInterface(WebNavigation());
browser->Deactivate();
return true;
}
bool TabChild::RecvParentActivated(const bool& aActivated)
{
mParentIsActive = aActivated;
nsFocusManager* fm = nsFocusManager::GetFocusManager();
NS_ENSURE_TRUE(fm, true);
nsCOMPtr<nsIDOMWindow> window = do_GetInterface(WebNavigation());
fm->ParentActivated(window, aActivated);
return true;
}
bool
TabChild::RecvMouseEvent(const nsString& aType,
const float& aX,
const float& aY,
const int32_t& aButton,
const int32_t& aClickCount,
const int32_t& aModifiers,
const bool& aIgnoreRootScrollFrame)
{
APZCCallbackHelper::DispatchMouseEvent(GetPresShell(), aType, CSSPoint(aX, aY),
aButton, aClickCount, aModifiers, aIgnoreRootScrollFrame, nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN);
return true;
}
bool
TabChild::RecvRealMouseMoveEvent(const WidgetMouseEvent& event)
{
return RecvRealMouseButtonEvent(event);
}
bool
TabChild::RecvRealMouseButtonEvent(const WidgetMouseEvent& event)
{
WidgetMouseEvent localEvent(event);
localEvent.widget = mWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
return true;
}
bool
TabChild::RecvMouseWheelEvent(const WidgetWheelEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
if (gfxPrefs::AsyncPanZoomEnabled()) {
nsCOMPtr<nsIDocument> document(GetDocument());
APZCCallbackHelper::SendSetTargetAPZCNotification(WebWidget(), document, aEvent, aGuid,
aInputBlockId);
}
WidgetWheelEvent event(aEvent);
event.widget = mWidget;
APZCCallbackHelper::DispatchWidgetEvent(event);
if (gfxPrefs::AsyncPanZoomEnabled()) {
mAPZEventState->ProcessWheelEvent(event, aGuid, aInputBlockId);
}
return true;
}
bool
TabChild::RecvMouseScrollTestEvent(const FrameMetrics::ViewID& aScrollId, const nsString& aEvent)
{
APZCCallbackHelper::NotifyMozMouseScrollEvent(aScrollId, aEvent);
return true;
}
static Touch*
GetTouchForIdentifier(const WidgetTouchEvent& aEvent, int32_t aId)
{
for (uint32_t i = 0; i < aEvent.touches.Length(); ++i) {
Touch* touch = static_cast<Touch*>(aEvent.touches[i].get());
if (touch->mIdentifier == aId) {
return touch;
}
}
return nullptr;
}
void
TabChild::UpdateTapState(const WidgetTouchEvent& aEvent, nsEventStatus aStatus)
{
static bool sHavePrefs;
static bool sClickHoldContextMenusEnabled;
static nsIntSize sDragThreshold;
static int32_t sContextMenuDelayMs;
if (!sHavePrefs) {
sHavePrefs = true;
Preferences::AddBoolVarCache(&sClickHoldContextMenusEnabled,
"ui.click_hold_context_menus", true);
Preferences::AddIntVarCache(&sDragThreshold.width,
"ui.dragThresholdX", 25);
Preferences::AddIntVarCache(&sDragThreshold.height,
"ui.dragThresholdY", 25);
Preferences::AddIntVarCache(&sContextMenuDelayMs,
"ui.click_hold_context_menus.delay", 500);
}
if (aEvent.touches.Length() == 0) {
return;
}
bool currentlyTrackingTouch = (mActivePointerId >= 0);
if (aEvent.message == NS_TOUCH_START) {
if (currentlyTrackingTouch || aEvent.touches.Length() > 1) {
// We're tracking a possible tap for another point, or we saw a
// touchstart for a later pointer after we canceled tracking of
// the first point. Ignore this one.
return;
}
if (aStatus == nsEventStatus_eConsumeNoDefault ||
TouchManager::gPreventMouseEvents ||
aEvent.mFlags.mMultipleActionsPrevented) {
return;
}
Touch* touch = aEvent.touches[0];
mGestureDownPoint = LayoutDevicePoint(touch->mRefPoint.x, touch->mRefPoint.y);
mActivePointerId = touch->mIdentifier;
if (sClickHoldContextMenusEnabled) {
MOZ_ASSERT(!mTapHoldTimer);
mTapHoldTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
nsRefPtr<DelayedFireContextMenuEvent> callback =
new DelayedFireContextMenuEvent(this);
mTapHoldTimer->InitWithCallback(callback,
sContextMenuDelayMs,
nsITimer::TYPE_ONE_SHOT);
}
return;
}
// If we're not tracking a touch or this event doesn't include the
// one we care about, bail.
if (!currentlyTrackingTouch) {
return;
}
Touch* trackedTouch = GetTouchForIdentifier(aEvent, mActivePointerId);
if (!trackedTouch) {
return;
}
LayoutDevicePoint currentPoint = LayoutDevicePoint(trackedTouch->mRefPoint.x, trackedTouch->mRefPoint.y);
int64_t time = aEvent.time;
switch (aEvent.message) {
case NS_TOUCH_MOVE:
if (std::abs(currentPoint.x - mGestureDownPoint.x) > sDragThreshold.width ||
std::abs(currentPoint.y - mGestureDownPoint.y) > sDragThreshold.height) {
CancelTapTracking();
}
return;
case NS_TOUCH_END:
if (!TouchManager::gPreventMouseEvents) {
APZCCallbackHelper::DispatchSynthesizedMouseEvent(NS_MOUSE_MOVE, time, currentPoint, 0, mWidget);
APZCCallbackHelper::DispatchSynthesizedMouseEvent(NS_MOUSE_BUTTON_DOWN, time, currentPoint, 0, mWidget);
APZCCallbackHelper::DispatchSynthesizedMouseEvent(NS_MOUSE_BUTTON_UP, time, currentPoint, 0, mWidget);
}
// fall through
case NS_TOUCH_CANCEL:
CancelTapTracking();
return;
default:
NS_WARNING("Unknown touch event type");
}
}
void
TabChild::FireContextMenuEvent()
{
if (mDestroyed) {
return;
}
double scale;
GetDefaultScale(&scale);
if (scale < 0) {
scale = 1;
}
MOZ_ASSERT(mTapHoldTimer && mActivePointerId >= 0);
bool defaultPrevented = APZCCallbackHelper::DispatchMouseEvent(
GetPresShell(),
NS_LITERAL_STRING("contextmenu"),
mGestureDownPoint / CSSToLayoutDeviceScale(scale),
2 /* Right button */,
1 /* Click count */,
0 /* Modifiers */,
true /* Ignore root scroll frame */,
nsIDOMMouseEvent::MOZ_SOURCE_TOUCH);
// Fire a click event if someone didn't call preventDefault() on the context
// menu event.
if (defaultPrevented) {
CancelTapTracking();
} else if (mTapHoldTimer) {
mTapHoldTimer->Cancel();
mTapHoldTimer = nullptr;
}
}
void
TabChild::CancelTapTracking()
{
mActivePointerId = -1;
if (mTapHoldTimer) {
mTapHoldTimer->Cancel();
}
mTapHoldTimer = nullptr;
}
float
TabChild::GetPresShellResolution() const
{
nsCOMPtr<nsIDocument> document(GetDocument());
nsIPresShell* shell = document->GetShell();
if (!shell) {
return 1.0f;
}
return shell->GetResolution();
}
bool
TabChild::RecvRealTouchEvent(const WidgetTouchEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
TABC_LOG("Receiving touch event of type %d\n", aEvent.message);
WidgetTouchEvent localEvent(aEvent);
localEvent.widget = mWidget;
APZCCallbackHelper::ApplyCallbackTransform(localEvent, aGuid,
mWidget->GetDefaultScale(), GetPresShellResolution());
if (localEvent.message == NS_TOUCH_START && gfxPrefs::AsyncPanZoomEnabled()) {
if (gfxPrefs::TouchActionEnabled()) {
APZCCallbackHelper::SendSetAllowedTouchBehaviorNotification(WebWidget(),
localEvent, aInputBlockId, mSetAllowedTouchBehaviorCallback);
}
nsCOMPtr<nsIDocument> document = GetDocument();
APZCCallbackHelper::SendSetTargetAPZCNotification(WebWidget(), document,
localEvent, aGuid, aInputBlockId);
}
// Dispatch event to content (potentially a long-running operation)
nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
if (!gfxPrefs::AsyncPanZoomEnabled()) {
UpdateTapState(localEvent, status);
return true;
}
mAPZEventState->ProcessTouchEvent(localEvent, aGuid, aInputBlockId,
nsEventStatus_eIgnore);
return true;
}
bool
TabChild::RecvRealTouchMoveEvent(const WidgetTouchEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
return RecvRealTouchEvent(aEvent, aGuid, aInputBlockId);
}
bool
TabChild::RecvRealDragEvent(const WidgetDragEvent& aEvent,
const uint32_t& aDragAction,
const uint32_t& aDropEffect)
{
WidgetDragEvent localEvent(aEvent);
localEvent.widget = mWidget;
nsCOMPtr<nsIDragSession> dragSession = nsContentUtils::GetDragSession();
if (dragSession) {
dragSession->SetDragAction(aDragAction);
nsCOMPtr<nsIDOMDataTransfer> initialDataTransfer;
dragSession->GetDataTransfer(getter_AddRefs(initialDataTransfer));
if (initialDataTransfer) {
initialDataTransfer->SetDropEffectInt(aDropEffect);
}
}
if (aEvent.message == NS_DRAGDROP_DROP) {
bool canDrop = true;
if (!dragSession || NS_FAILED(dragSession->GetCanDrop(&canDrop)) ||
!canDrop) {
localEvent.message = NS_DRAGDROP_EXIT;
}
} else if (aEvent.message == NS_DRAGDROP_OVER) {
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
if (dragService) {
// This will dispatch 'drag' event at the source if the
// drag transaction started in this process.
dragService->FireDragEventAtSource(NS_DRAGDROP_DRAG);
}
}
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
return true;
}
void
TabChild::RequestNativeKeyBindings(AutoCacheNativeKeyCommands* aAutoCache,
WidgetKeyboardEvent* aEvent)
{
MaybeNativeKeyBinding maybeBindings;
if (!SendRequestNativeKeyBindings(*aEvent, &maybeBindings)) {
return;
}
if (maybeBindings.type() == MaybeNativeKeyBinding::TNativeKeyBinding) {
const NativeKeyBinding& bindings = maybeBindings;
aAutoCache->Cache(bindings.singleLineCommands(),
bindings.multiLineCommands(),
bindings.richTextCommands());
} else {
aAutoCache->CacheNoCommands();
}
}
bool
TabChild::RecvNativeSynthesisResponse(const uint64_t& aObserverId,
const nsCString& aResponse)
{
mozilla::widget::AutoObserverNotifier::NotifySavedObserver(aObserverId, aResponse.get());
return true;
}
bool
TabChild::RecvRealKeyEvent(const WidgetKeyboardEvent& event,
const MaybeNativeKeyBinding& aBindings)
{
PuppetWidget* widget = static_cast<PuppetWidget*>(mWidget.get());
AutoCacheNativeKeyCommands autoCache(widget);
if (event.message == NS_KEY_PRESS) {
// If content code called preventDefault() on a keydown event, then we don't
// want to process any following keypress events.
if (mIgnoreKeyPressEvent) {
return true;
}
if (aBindings.type() == MaybeNativeKeyBinding::TNativeKeyBinding) {
const NativeKeyBinding& bindings = aBindings;
autoCache.Cache(bindings.singleLineCommands(),
bindings.multiLineCommands(),
bindings.richTextCommands());
} else {
autoCache.CacheNoCommands();
}
}
WidgetKeyboardEvent localEvent(event);
localEvent.widget = mWidget;
nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
if (event.message == NS_KEY_DOWN) {
mIgnoreKeyPressEvent = status == nsEventStatus_eConsumeNoDefault;
}
if (localEvent.mFlags.mWantReplyFromContentProcess) {
SendReplyKeyEvent(localEvent);
}
if (PresShell::BeforeAfterKeyboardEventEnabled()) {
SendDispatchAfterKeyboardEvent(localEvent);
}
return true;
}
bool
TabChild::RecvKeyEvent(const nsString& aType,
const int32_t& aKeyCode,
const int32_t& aCharCode,
const int32_t& aModifiers,
const bool& aPreventDefault)
{
bool ignored = false;
nsContentUtils::SendKeyEvent(mWidget, aType, aKeyCode, aCharCode,
aModifiers, aPreventDefault, &ignored);
return true;
}
bool
TabChild::RecvCompositionEvent(const WidgetCompositionEvent& event)
{
WidgetCompositionEvent localEvent(event);
localEvent.widget = mWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
return true;
}
bool
TabChild::RecvSelectionEvent(const WidgetSelectionEvent& event)
{
WidgetSelectionEvent localEvent(event);
localEvent.widget = mWidget;
APZCCallbackHelper::DispatchWidgetEvent(localEvent);
return true;
}
PDocumentRendererChild*
TabChild::AllocPDocumentRendererChild(const nsRect& documentRect,
const mozilla::gfx::Matrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags,
const bool& flushLayout,
const nsIntSize& renderSize)
{
return new DocumentRendererChild();
}
bool
TabChild::DeallocPDocumentRendererChild(PDocumentRendererChild* actor)
{
delete actor;
return true;
}
bool
TabChild::RecvPDocumentRendererConstructor(PDocumentRendererChild* actor,
const nsRect& documentRect,
const mozilla::gfx::Matrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags,
const bool& flushLayout,
const nsIntSize& renderSize)
{
DocumentRendererChild *render = static_cast<DocumentRendererChild *>(actor);
nsCOMPtr<nsIWebBrowser> browser = do_QueryInterface(WebNavigation());
if (!browser)
return true; // silently ignore
nsCOMPtr<nsIDOMWindow> window;
if (NS_FAILED(browser->GetContentDOMWindow(getter_AddRefs(window))) ||
!window)
{
return true; // silently ignore
}
nsCString data;
bool ret = render->RenderDocument(window,
documentRect, transform,
bgcolor,
renderFlags, flushLayout,
renderSize, data);
if (!ret)
return true; // silently ignore
return PDocumentRendererChild::Send__delete__(actor, renderSize, data);
}
PColorPickerChild*
TabChild::AllocPColorPickerChild(const nsString&, const nsString&)
{
NS_RUNTIMEABORT("unused");
return nullptr;
}
bool
TabChild::DeallocPColorPickerChild(PColorPickerChild* aColorPicker)
{
nsColorPickerProxy* picker = static_cast<nsColorPickerProxy*>(aColorPicker);
NS_RELEASE(picker);
return true;
}
PFilePickerChild*
TabChild::AllocPFilePickerChild(const nsString&, const int16_t&)
{
NS_RUNTIMEABORT("unused");
return nullptr;
}
bool
TabChild::DeallocPFilePickerChild(PFilePickerChild* actor)
{
nsFilePickerProxy* filePicker = static_cast<nsFilePickerProxy*>(actor);
NS_RELEASE(filePicker);
return true;
}
auto
TabChild::AllocPIndexedDBPermissionRequestChild(const Principal& aPrincipal)
-> PIndexedDBPermissionRequestChild*
{
MOZ_CRASH("PIndexedDBPermissionRequestChild actors should always be created "
"manually!");
}
bool
TabChild::DeallocPIndexedDBPermissionRequestChild(
PIndexedDBPermissionRequestChild* aActor)
{
MOZ_ASSERT(aActor);
delete aActor;
return true;
}
bool
TabChild::RecvActivateFrameEvent(const nsString& aType, const bool& capture)
{
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, true);
nsCOMPtr<EventTarget> chromeHandler =
do_QueryInterface(window->GetChromeEventHandler());
NS_ENSURE_TRUE(chromeHandler, true);
nsRefPtr<ContentListener> listener = new ContentListener(this);
chromeHandler->AddEventListener(aType, listener, capture);
return true;
}
bool
TabChild::RecvLoadRemoteScript(const nsString& aURL, const bool& aRunInGlobalScope)
{
if (!mGlobal && !InitTabChildGlobal())
// This can happen if we're half-destroyed. It's not a fatal
// error.
return true;
LoadScriptInternal(aURL, aRunInGlobalScope);
return true;
}
bool
TabChild::RecvAsyncMessage(const nsString& aMessage,
const ClonedMessageData& aData,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal)
{
if (mTabChildGlobal) {
nsCOMPtr<nsIXPConnectJSObjectHolder> kungFuDeathGrip(GetGlobal());
StructuredCloneData cloneData = UnpackClonedMessageDataForChild(aData);
nsRefPtr<nsFrameMessageManager> mm =
static_cast<nsFrameMessageManager*>(mTabChildGlobal->mMessageManager.get());
CrossProcessCpowHolder cpows(Manager(), aCpows);
mm->ReceiveMessage(static_cast<EventTarget*>(mTabChildGlobal), nullptr,
aMessage, false, &cloneData, &cpows, aPrincipal, nullptr);
}
return true;
}
bool
TabChild::RecvAppOfflineStatus(const uint32_t& aId, const bool& aOffline)
{
// Instantiate the service to make sure gIOService is initialized
nsCOMPtr<nsIIOService> ioService = mozilla::services::GetIOService();
if (gIOService && ioService) {
gIOService->SetAppOfflineInternal(aId, aOffline ?
nsIAppOfflineInfo::OFFLINE : nsIAppOfflineInfo::ONLINE);
}
return true;
}
bool
TabChild::RecvDestroy()
{
MOZ_ASSERT(mDestroyed == false);
mDestroyed = true;
if (mTabChildGlobal) {
// Message handlers are called from the event loop, so it better be safe to
// run script.
MOZ_ASSERT(nsContentUtils::IsSafeToRunScript());
mTabChildGlobal->DispatchTrustedEvent(NS_LITERAL_STRING("unload"));
}
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
observerService->RemoveObserver(this, BROWSER_ZOOM_TO_RECT);
observerService->RemoveObserver(this, BEFORE_FIRST_PAINT);
// XXX what other code in ~TabChild() should we be running here?
DestroyWindow();
// Bounce through the event loop once to allow any delayed teardown runnables
// that were just generated to have a chance to run.
nsCOMPtr<nsIRunnable> deleteRunnable = new DelayedDeleteRunnable(this);
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_DispatchToCurrentThread(deleteRunnable)));
return true;
}
bool
TabChild::RecvSetUpdateHitRegion(const bool& aEnabled)
{
mUpdateHitRegion = aEnabled;
// We need to trigger a repaint of the child frame to ensure that it
// recomputes and sends its region.
if (!mUpdateHitRegion) {
return true;
}
nsCOMPtr<nsIDocument> document(GetDocument());
NS_ENSURE_TRUE(document, true);
nsCOMPtr<nsIPresShell> presShell = document->GetShell();
NS_ENSURE_TRUE(presShell, true);
nsRefPtr<nsPresContext> presContext = presShell->GetPresContext();
NS_ENSURE_TRUE(presContext, true);
presContext->InvalidatePaintedLayers();
return true;
}
bool
TabChild::RecvSetIsDocShellActive(const bool& aIsActive)
{
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(WebNavigation());
if (docShell) {
docShell->SetIsActive(aIsActive);
}
return true;
}
PRenderFrameChild*
TabChild::AllocPRenderFrameChild()
{
return new RenderFrameChild();
}
bool
TabChild::DeallocPRenderFrameChild(PRenderFrameChild* aFrame)
{
delete aFrame;
return true;
}
bool
TabChild::InitTabChildGlobal(FrameScriptLoading aScriptLoading)
{
if (!mGlobal && !mTabChildGlobal) {
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(WebNavigation());
NS_ENSURE_TRUE(window, false);
nsCOMPtr<EventTarget> chromeHandler =
do_QueryInterface(window->GetChromeEventHandler());
NS_ENSURE_TRUE(chromeHandler, false);
nsRefPtr<TabChildGlobal> scope = new TabChildGlobal(this);
mTabChildGlobal = scope;
nsISupports* scopeSupports = NS_ISUPPORTS_CAST(EventTarget*, scope);
NS_NAMED_LITERAL_CSTRING(globalId, "outOfProcessTabChildGlobal");
NS_ENSURE_TRUE(InitChildGlobalInternal(scopeSupports, globalId), false);
scope->Init();
nsCOMPtr<nsPIWindowRoot> root = do_QueryInterface(chromeHandler);
NS_ENSURE_TRUE(root, false);
root->SetParentTarget(scope);
chromeHandler->AddEventListener(NS_LITERAL_STRING("DOMMetaAdded"), this, false);
chromeHandler->AddEventListener(NS_LITERAL_STRING("FullZoomChange"), this, false);
}
if (aScriptLoading != DONT_LOAD_SCRIPTS && !mTriedBrowserInit) {
mTriedBrowserInit = true;
// Initialize the child side of the browser element machinery,
// if appropriate.
if (IsBrowserOrApp()) {
RecvLoadRemoteScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
}
}
return true;
}
bool
TabChild::InitRenderingState(const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
PRenderFrameChild* aRenderFrame)
{
static_cast<PuppetWidget*>(mWidget.get())->InitIMEState();
RenderFrameChild* remoteFrame = static_cast<RenderFrameChild*>(aRenderFrame);
if (!remoteFrame) {
NS_WARNING("failed to construct RenderFrame");
return false;
}
MOZ_ASSERT(aLayersId != 0);
mTextureFactoryIdentifier = aTextureFactoryIdentifier;
// Pushing layers transactions directly to a separate
// compositor context.
PCompositorChild* compositorChild = CompositorChild::Get();
if (!compositorChild) {
NS_WARNING("failed to get CompositorChild instance");
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
nsTArray<LayersBackend> backends;
backends.AppendElement(mTextureFactoryIdentifier.mParentBackend);
bool success;
PLayerTransactionChild* shadowManager =
compositorChild->SendPLayerTransactionConstructor(backends,
aLayersId, &mTextureFactoryIdentifier, &success);
if (!success) {
NS_WARNING("failed to properly allocate layer transaction");
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
if (!shadowManager) {
NS_WARNING("failed to construct LayersChild");
// This results in |remoteFrame| being deleted.
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
ShadowLayerForwarder* lf =
mWidget->GetLayerManager(shadowManager, mTextureFactoryIdentifier.mParentBackend)
->AsShadowForwarder();
MOZ_ASSERT(lf && lf->HasShadowManager(),
"PuppetWidget should have shadow manager");
lf->IdentifyTextureHost(mTextureFactoryIdentifier);
ImageBridgeChild::IdentifyCompositorTextureHost(mTextureFactoryIdentifier);
mRemoteFrame = remoteFrame;
if (aLayersId != 0) {
if (!sTabChildren) {
sTabChildren = new TabChildMap;
}
MOZ_ASSERT(!sTabChildren->Get(aLayersId));
sTabChildren->Put(aLayersId, this);
mLayersId = aLayersId;
}
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
observerService->AddObserver(this,
BROWSER_ZOOM_TO_RECT,
false);
observerService->AddObserver(this,
BEFORE_FIRST_PAINT,
false);
}
return true;
}
void
TabChild::SetBackgroundColor(const nscolor& aColor)
{
if (mLastBackgroundColor != aColor) {
mLastBackgroundColor = aColor;
SendSetBackgroundColor(mLastBackgroundColor);
}
}
void
TabChild::GetDPI(float* aDPI)
{
*aDPI = -1.0;
if (!mRemoteFrame) {
return;
}
if (mDPI > 0) {
*aDPI = mDPI;
return;
}
// Fallback to a sync call if needed.
SendGetDPI(aDPI);
}
void
TabChild::GetDefaultScale(double* aScale)
{
*aScale = -1.0;
if (!mRemoteFrame) {
return;
}
if (mDefaultScale > 0) {
*aScale = mDefaultScale;
return;
}
// Fallback to a sync call if needed.
SendGetDefaultScale(aScale);
}
void
TabChild::NotifyPainted()
{
if (!mNotified) {
mRemoteFrame->SendNotifyCompositorTransaction();
mNotified = true;
}
}
void
TabChild::MakeVisible()
{
if (mWidget) {
mWidget->Show(true);
}
}
void
TabChild::MakeHidden()
{
if (mWidget) {
mWidget->Show(false);
}
}
void
TabChild::UpdateHitRegion(const nsRegion& aRegion)
{
mRemoteFrame->SendUpdateHitRegion(aRegion);
}
NS_IMETHODIMP
TabChild::GetMessageManager(nsIContentFrameMessageManager** aResult)
{
if (mTabChildGlobal) {
NS_ADDREF(*aResult = mTabChildGlobal);
return NS_OK;
}
*aResult = nullptr;
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
TabChild::GetWebBrowserChrome(nsIWebBrowserChrome3** aWebBrowserChrome)
{
NS_IF_ADDREF(*aWebBrowserChrome = mWebBrowserChrome);
return NS_OK;
}
NS_IMETHODIMP
TabChild::SetWebBrowserChrome(nsIWebBrowserChrome3* aWebBrowserChrome)
{
mWebBrowserChrome = aWebBrowserChrome;
return NS_OK;
}
void
TabChild::SendRequestFocus(bool aCanFocus)
{
PBrowserChild::SendRequestFocus(aCanFocus);
}
void
TabChild::EnableDisableCommands(const nsAString& aAction,
nsTArray<nsCString>& aEnabledCommands,
nsTArray<nsCString>& aDisabledCommands)
{
PBrowserChild::SendEnableDisableCommands(PromiseFlatString(aAction),
aEnabledCommands, aDisabledCommands);
}
NS_IMETHODIMP
TabChild::GetTabId(uint64_t* aId)
{
*aId = GetTabId();
return NS_OK;
}
void
TabChild::SetTabId(const TabId& aTabId)
{
MOZ_ASSERT(mUniqueId == 0);
mUniqueId = aTabId;
NestedTabChildMap()[mUniqueId] = this;
}
bool
TabChild::DoSendBlockingMessage(JSContext* aCx,
const nsAString& aMessage,
const StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows,
nsIPrincipal* aPrincipal,
InfallibleTArray<nsString>* aJSONRetVal,
bool aIsSync)
{
ClonedMessageData data;
if (!BuildClonedMessageDataForChild(Manager(), aData, data)) {
return false;
}
InfallibleTArray<CpowEntry> cpows;
if (aCpows && !Manager()->GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
return false;
}
if (aIsSync) {
return SendSyncMessage(PromiseFlatString(aMessage), data, cpows,
Principal(aPrincipal), aJSONRetVal);
}
return SendRpcMessage(PromiseFlatString(aMessage), data, cpows,
Principal(aPrincipal), aJSONRetVal);
}
bool
TabChild::DoSendAsyncMessage(JSContext* aCx,
const nsAString& aMessage,
const StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows,
nsIPrincipal* aPrincipal)
{
ClonedMessageData data;
if (!BuildClonedMessageDataForChild(Manager(), aData, data)) {
return false;
}
InfallibleTArray<CpowEntry> cpows;
if (aCpows && !Manager()->GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
return false;
}
return SendAsyncMessage(PromiseFlatString(aMessage), data, cpows,
Principal(aPrincipal));
}
TabChild*
TabChild::GetFrom(nsIPresShell* aPresShell)
{
nsIDocument* doc = aPresShell->GetDocument();
if (!doc) {
return nullptr;
}
nsCOMPtr<nsIDocShell> docShell(doc->GetDocShell());
return GetFrom(docShell);
}
TabChild*
TabChild::GetFrom(uint64_t aLayersId)
{
if (!sTabChildren) {
return nullptr;
}
return sTabChildren->Get(aLayersId);
}
void
TabChild::DidComposite(uint64_t aTransactionId)
{
MOZ_ASSERT(mWidget);
MOZ_ASSERT(mWidget->GetLayerManager());
MOZ_ASSERT(mWidget->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT);
ClientLayerManager *manager = static_cast<ClientLayerManager*>(mWidget->GetLayerManager());
manager->DidComposite(aTransactionId);
}
NS_IMETHODIMP
TabChild::OnShowTooltip(int32_t aXCoords, int32_t aYCoords, const char16_t *aTipText)
{
nsString str(aTipText);
SendShowTooltip(aXCoords, aYCoords, str);
return NS_OK;
}
NS_IMETHODIMP
TabChild::OnHideTooltip()
{
SendHideTooltip();
return NS_OK;
}
bool
TabChild::RecvRequestNotifyAfterRemotePaint()
{
// Get the CompositorChild instance for this content thread.
CompositorChild* compositor = CompositorChild::Get();
// Tell the CompositorChild that, when it gets a RemotePaintIsReady
// message that it should forward it us so that we can bounce it to our
// RenderFrameParent.
compositor->RequestNotifyAfterRemotePaint(this);
return true;
}
bool
TabChild::RecvUIResolutionChanged()
{
mDPI = 0;
mDefaultScale = 0;
static_cast<PuppetWidget*>(mWidget.get())->ClearBackingScaleCache();
nsCOMPtr<nsIDocument> document(GetDocument());
nsCOMPtr<nsIPresShell> presShell = document->GetShell();
nsRefPtr<nsPresContext> presContext = presShell->GetPresContext();
presContext->UIResolutionChanged();
return true;
}
mozilla::plugins::PPluginWidgetChild*
TabChild::AllocPPluginWidgetChild()
{
return new mozilla::plugins::PluginWidgetChild();
}
bool
TabChild::DeallocPPluginWidgetChild(mozilla::plugins::PPluginWidgetChild* aActor)
{
delete aActor;
return true;
}
nsresult
TabChild::CreatePluginWidget(nsIWidget* aParent, nsIWidget** aOut)
{
*aOut = nullptr;
mozilla::plugins::PluginWidgetChild* child =
static_cast<mozilla::plugins::PluginWidgetChild*>(SendPPluginWidgetConstructor());
if (!child) {
NS_ERROR("couldn't create PluginWidgetChild");
return NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsIWidget> pluginWidget = nsIWidget::CreatePluginProxyWidget(this, child);
if (!pluginWidget) {
NS_ERROR("couldn't create PluginWidgetProxy");
return NS_ERROR_UNEXPECTED;
}
nsWidgetInitData initData;
initData.mWindowType = eWindowType_plugin_ipc_content;
initData.mUnicode = false;
initData.clipChildren = true;
initData.clipSiblings = true;
nsresult rv = pluginWidget->Create(aParent, nullptr, gfx::IntRect(gfx::IntPoint(0, 0),
nsIntSize(0, 0)), &initData);
if (NS_FAILED(rv)) {
NS_WARNING("Creating native plugin widget on the chrome side failed.");
}
pluginWidget.forget(aOut);
return rv;
}
TabChildGlobal::TabChildGlobal(TabChildBase* aTabChild)
: mTabChild(aTabChild)
{
SetIsNotDOMBinding();
}
TabChildGlobal::~TabChildGlobal()
{
}
void
TabChildGlobal::Init()
{
NS_ASSERTION(!mMessageManager, "Re-initializing?!?");
mMessageManager = new nsFrameMessageManager(mTabChild,
nullptr,
MM_CHILD);
}
NS_IMPL_CYCLE_COLLECTION_INHERITED(TabChildGlobal, DOMEventTargetHelper,
mMessageManager, mTabChild)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TabChildGlobal)
NS_INTERFACE_MAP_ENTRY(nsIMessageListenerManager)
NS_INTERFACE_MAP_ENTRY(nsIMessageSender)
NS_INTERFACE_MAP_ENTRY(nsISyncMessageSender)
NS_INTERFACE_MAP_ENTRY(nsIContentFrameMessageManager)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(ContentFrameMessageManager)
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(TabChildGlobal, DOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(TabChildGlobal, DOMEventTargetHelper)
/* [notxpcom] boolean markForCC (); */
// This method isn't automatically forwarded safely because it's notxpcom, so
// the IDL binding doesn't know what value to return.
NS_IMETHODIMP_(bool)
TabChildGlobal::MarkForCC()
{
if (mTabChild) {
mTabChild->MarkScopesForCC();
}
return mMessageManager ? mMessageManager->MarkForCC() : false;
}
NS_IMETHODIMP
TabChildGlobal::GetContent(nsIDOMWindow** aContent)
{
*aContent = nullptr;
if (!mTabChild)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDOMWindow> window = do_GetInterface(mTabChild->WebNavigation());
window.swap(*aContent);
return NS_OK;
}
NS_IMETHODIMP
TabChildGlobal::GetDocShell(nsIDocShell** aDocShell)
{
*aDocShell = nullptr;
if (!mTabChild)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(mTabChild->WebNavigation());
docShell.swap(*aDocShell);
return NS_OK;
}
JSContext*
TabChildGlobal::GetJSContextForEventHandlers()
{
return nsContentUtils::GetSafeJSContext();
}
nsIPrincipal*
TabChildGlobal::GetPrincipal()
{
if (!mTabChild)
return nullptr;
return mTabChild->GetPrincipal();
}
JSObject*
TabChildGlobal::GetGlobalJSObject()
{
NS_ENSURE_TRUE(mTabChild, nullptr);
nsCOMPtr<nsIXPConnectJSObjectHolder> ref = mTabChild->GetGlobal();
NS_ENSURE_TRUE(ref, nullptr);
return ref->GetJSObject();
}
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