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5ce7838926
gecko/dom/ipc/TabChild.cpp
Ryan VanderMeulen 5ce7838926 Backed out 7 changesets (bug 1075670) for e10s browser_586068-browser_state_interrupted.js crashes. 
Backed out changeset 4ca74b217fe8 (bug 1075670)
Backed out changeset 83199cfc333f (bug 1075670)
Backed out changeset 065b859e6525 (bug 1075670)
Backed out changeset a3e8329610d9 (bug 1075670)
Backed out changeset ced9055e0bcc (bug 1075670)
Backed out changeset e6d6f0c11133 (bug 1075670)
Backed out changeset b823c6c95030 (bug 1075670)

CLOSED TREE
2015-02-24 11:53:34 -05:00

3253 lines
99 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 "nsContentPermissionHelper.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 MOZ_FINAL : public nsITimerCallback
{
public:
NS_DECL_ISUPPORTS
explicit DelayedFireContextMenuEvent(TabChild* tabChild)
: mTabChild(tabChild)
{
}
NS_IMETHODIMP Notify(nsITimer*) MOZ_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(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().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) {
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
utils->SetCSSViewport(aSize.width, aSize.height);
}
}
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 (!IsAsyncPanZoomEnabled()) {
return false;
}
TABC_LOG("HandlePossibleViewportChange aOldScreenSize=%s mInnerSize=%s\n",
Stringify(aOldScreenSize).c_str(), Stringify(mInnerSize).c_str());
nsCOMPtr<nsIDocument> document(GetDocument());
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
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.
bool isFirstPaint;
nsresult rv = utils->GetIsFirstPaint(&isFirstPaint);
if (NS_FAILED(rv) || 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(ConvertScaleForRoot(defaultZoom));
metrics.SetScrollId(viewId);
}
if (nsIPresShell* shell = document->GetShell()) {
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().scale);
utils->SetResolutionAndScaleTo(metrics.GetPresShellResolution(), metrics.GetPresShellResolution());
CSSSize scrollPort = metrics.CalculateCompositedSizeInCssPixels();
utils->SetScrollPositionClampingScrollPortSize(scrollPort.width, scrollPort.height);
// 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();
}
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),
aMessageName, false, &cloneData, nullptr, nullptr, nullptr);
}
bool
TabChildBase::UpdateFrameHandler(const FrameMetrics& aFrameMetrics)
{
MOZ_ASSERT(aFrameMetrics.GetScrollId() != FrameMetrics::NULL_SCROLL_ID);
if (aFrameMetrics.GetIsRoot()) {
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
if (APZCCallbackHelper::HasValidPresShellId(utils, aFrameMetrics)) {
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;
}
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
FrameMetrics newMetrics = aFrameMetrics;
APZCCallbackHelper::UpdateRootFrame(utils, 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;
}
bool
TabChildBase::IsAsyncPanZoomEnabled()
{
return mScrolling == ASYNC_PAN_ZOOM;
}
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 MOZ_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 TabChildSetTargetAPZCCallback : public SetTargetAPZCCallback {
public:
explicit TabChildSetTargetAPZCCallback(TabChild* aTabChild)
: mTabChild(do_GetWeakReference(static_cast<nsITabChild*>(aTabChild)))
{}
void Run(uint64_t aInputBlockId, const nsTArray<ScrollableLayerGuid>& aTargets) const MOZ_OVERRIDE {
if (nsCOMPtr<nsITabChild> tabChild = do_QueryReferent(mTabChild)) {
static_cast<TabChild*>(tabChild.get())->SendSetTargetAPZC(aInputBlockId, aTargets);
}
}
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 MOZ_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)
, mSetTargetAPZCCallback(new TabChildSetTargetAPZCCallback(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 (IsAsyncPanZoomEnabled()) {
nsCOMPtr<nsIDocument> subject(do_QueryInterface(aSubject));
nsCOMPtr<nsIDocument> doc(GetDocument());
if (SameCOMIdentity(subject, doc)) {
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
utils->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();
utils->SetResolutionAndScaleTo(mLastRootMetrics.GetPresShellResolution(),
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 (!IsAsyncPanZoomEnabled()) {
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
nsIntRect(nsIntPoint(0, 0), nsIntSize(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, mScrolling);
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, mScrolling), 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;
}
ScrollingBehavior scrolling = DEFAULT_SCROLLING;
TextureFactoryIdentifier textureFactoryIdentifier;
uint64_t layersId = 0;
PRenderFrameChild* renderFrame = newChild->SendPRenderFrameConstructor();
newChild->SendGetRenderFrameInfo(renderFrame,
&scrolling,
&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(scrolling, 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)
{
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 ScrollingBehavior& aScrolling,
const TextureFactoryIdentifier& aTextureFactoryIdentifier,
const uint64_t& aLayersId,
PRenderFrameChild* aRenderFrame)
{
ShowInfo info(EmptyString(), false, false, 0, 0);
RecvShow(nsIntSize(0, 0), info, aScrolling, 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 nsIntSize& aSize,
const ShowInfo& aInfo,
const ScrollingBehavior& aScrolling,
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(aScrolling, 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 nsIntSize& size,
const ScreenOrientation& orientation, const nsIntPoint& 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 = ScreenIntSize::FromUnknownSize(
gfx::IntSize(size.width, size.height));
mWidget->Resize(0, 0, 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::RecvAcknowledgeScrollUpdate(const ViewID& aScrollId,
const uint32_t& aScrollGeneration)
{
APZCCallbackHelper::AcknowledgeScrollUpdate(aScrollId, aScrollGeneration);
return true;
}
bool
TabChild::RecvHandleDoubleTap(const CSSPoint& aPoint, 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;
}
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 ScrollableLayerGuid& aGuid)
{
if (mGlobal && mTabChildGlobal) {
mAPZEventState->ProcessSingleTap(aPoint, aGuid, GetPresShellResolution());
}
return true;
}
bool
TabChild::RecvHandleLongTap(const CSSPoint& aPoint, const ScrollableLayerGuid& aGuid, const uint64_t& aInputBlockId)
{
if (mGlobal && mTabChildGlobal) {
mAPZEventState->ProcessLongTap(GetDOMWindowUtils(), aPoint, aGuid,
aInputBlockId, GetPresShellResolution());
}
return true;
}
bool
TabChild::RecvHandleLongTapUp(const CSSPoint& aPoint, const ScrollableLayerGuid& aGuid)
{
if (mGlobal && mTabChildGlobal) {
mAPZEventState->ProcessLongTapUp(aPoint, aGuid, 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(GetDOMWindowUtils(), 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 (IsAsyncPanZoomEnabled()) {
nsCOMPtr<nsIDocument> document(GetDocument());
APZCCallbackHelper::SendSetTargetAPZCNotification(WebWidget(), document, aEvent, aGuid,
aInputBlockId, mSetTargetAPZCCallback);
}
WidgetWheelEvent event(aEvent);
event.widget = mWidget;
APZCCallbackHelper::DispatchWidgetEvent(event);
if (IsAsyncPanZoomEnabled()) {
mAPZEventState->ProcessWheelEvent(event, aGuid, aInputBlockId);
}
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 ||
nsIPresShell::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 (!nsIPresShell::gPreventMouseEvents) {
APZCCallbackHelper::DispatchSynthesizedMouseEvent(NS_MOUSE_MOVE, time, currentPoint, mWidget);
APZCCallbackHelper::DispatchSynthesizedMouseEvent(NS_MOUSE_BUTTON_DOWN, time, currentPoint, mWidget);
APZCCallbackHelper::DispatchSynthesizedMouseEvent(NS_MOUSE_BUTTON_UP, time, currentPoint, 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(
GetDOMWindowUtils(),
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->GetXResolution();
}
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 && IsAsyncPanZoomEnabled()) {
nsCOMPtr<nsIDocument> document = GetDocument();
APZCCallbackHelper::SendSetTargetAPZCNotification(WebWidget(), document,
localEvent, aGuid, aInputBlockId, mSetTargetAPZCCallback);
}
// Dispatch event to content (potentially a long-running operation)
nsEventStatus status = APZCCallbackHelper::DispatchWidgetEvent(localEvent);
if (!IsAsyncPanZoomEnabled()) {
UpdateTapState(localEvent, status);
return true;
}
mAPZEventState->ProcessTouchEvent(localEvent, aGuid, aInputBlockId);
return true;
}
bool
TabChild::RecvRealTouchMoveEvent(const WidgetTouchEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId)
{
return RecvRealTouchEvent(aEvent, aGuid, aInputBlockId);
}
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::RecvRealKeyEvent(const WidgetKeyboardEvent& event,
const MaybeNativeKeyBinding& aBindings)
{
PuppetWidget* widget = static_cast<PuppetWidget*>(mWidget.get());
AutoCacheNativeKeyCommands autoCache(widget);
if (event.message == NS_KEY_PRESS) {
if (aBindings.type() == MaybeNativeKeyBinding::TNativeKeyBinding) {
const NativeKeyBinding& bindings = aBindings;
autoCache.Cache(bindings.singleLineCommands(),
bindings.multiLineCommands(),
bindings.richTextCommands());
} else {
autoCache.CacheNoCommands();
}
}
// If content code called preventDefault() on a keydown event, then we don't
// want to process any following keypress events.
if (event.message == NS_KEY_PRESS && mIgnoreKeyPressEvent) {
return true;
}
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)
{
nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
NS_ENSURE_TRUE(utils, true);
bool ignored = false;
utils->SendKeyEvent(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;
}
PContentPermissionRequestChild*
TabChild::AllocPContentPermissionRequestChild(const InfallibleTArray<PermissionRequest>& aRequests,
const IPC::Principal& aPrincipal)
{
NS_RUNTIMEABORT("unused");
return nullptr;
}
bool
TabChild::DeallocPContentPermissionRequestChild(PContentPermissionRequestChild* actor)
{
RemotePermissionRequest* child = static_cast<RemotePermissionRequest*>(actor);
child->IPDLRelease();
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),
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;
}
class UnloadScriptEvent : public nsRunnable
{
public:
UnloadScriptEvent(TabChild* aTabChild, TabChildGlobal* aTabChildGlobal)
: mTabChild(aTabChild), mTabChildGlobal(aTabChildGlobal)
{ }
NS_IMETHOD Run()
{
nsCOMPtr<nsIDOMEvent> event;
NS_NewDOMEvent(getter_AddRefs(event), mTabChildGlobal, nullptr, nullptr);
if (event) {
event->InitEvent(NS_LITERAL_STRING("unload"), false, false);
event->SetTrusted(true);
bool dummy;
mTabChildGlobal->DispatchEvent(event, &dummy);
}
return NS_OK;
}
nsRefPtr<TabChild> mTabChild;
TabChildGlobal* mTabChildGlobal;
};
bool
TabChild::RecvDestroy()
{
MOZ_ASSERT(mDestroyed == false);
mDestroyed = true;
if (mTabChildGlobal) {
// Let the frame scripts know the child is being closed
nsContentUtils::AddScriptRunner(
new UnloadScriptEvent(this, mTabChildGlobal)
);
}
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 ScrollingBehavior& aScrolling,
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);
mScrolling = aScrolling;
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, nsIntRect(nsIntPoint(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()
{
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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