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gecko/dom/ipc/TabParent.cpp

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/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8; -*- */
/* vim: set sw=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 "TabParent.h"
#include "Blob.h"
#include "IDBFactory.h"
#include "IndexedDBParent.h"
#include "mozIApplication.h"
#include "mozilla/BrowserElementParent.h"
#include "mozilla/docshell/OfflineCacheUpdateParent.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/Hal.h"
#include "mozilla/ipc/DocumentRendererParent.h"
#include "mozilla/layers/CompositorParent.h"
#include "mozilla/layout/RenderFrameParent.h"
#include "mozilla/Preferences.h"
#include "mozilla/unused.h"
#include "nsCOMPtr.h"
#include "nsContentPermissionHelper.h"
#include "nsContentUtils.h"
#include "nsDebug.h"
#include "nsEventDispatcher.h"
#include "nsEventStateManager.h"
#include "nsFocusManager.h"
#include "nsFrameLoader.h"
#include "nsIContent.h"
#include "nsIDocShell.h"
#include "nsIDOMApplicationRegistry.h"
#include "nsIDOMElement.h"
#include "nsIDOMEvent.h"
#include "nsIDOMHTMLFrameElement.h"
#include "nsIDOMWindow.h"
#include "nsIDialogCreator.h"
#include "nsIPromptFactory.h"
#include "nsIURI.h"
#include "nsIMozBrowserFrame.h"
#include "nsIScriptSecurityManager.h"
#include "nsViewManager.h"
#include "nsIWidget.h"
#include "nsIWindowWatcher.h"
#include "nsNetUtil.h"
#include "nsPIDOMWindow.h"
#include "nsPrintfCString.h"
#include "nsSerializationHelper.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "private/pprio.h"
#include "StructuredCloneUtils.h"
#include "TabChild.h"
#include <algorithm>
using namespace mozilla::dom;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::layout;
using namespace mozilla::services;
using namespace mozilla::widget;
using namespace mozilla::dom::indexedDB;
// The flags passed by the webProgress notifications are 16 bits shifted
// from the ones registered by webProgressListeners.
#define NOTIFY_FLAG_SHIFT 16
class OpenFileAndSendFDRunnable : public nsRunnable
{
const nsString mPath;
nsRefPtr<TabParent> mTabParent;
nsCOMPtr<nsIEventTarget> mEventTarget;
PRFileDesc* mFD;
public:
OpenFileAndSendFDRunnable(const nsAString& aPath, TabParent* aTabParent)
: mPath(aPath), mTabParent(aTabParent), mFD(nullptr)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aPath.IsEmpty());
MOZ_ASSERT(aTabParent);
}
void Dispatch()
{
MOZ_ASSERT(NS_IsMainThread());
mEventTarget = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
NS_ENSURE_TRUE_VOID(mEventTarget);
nsresult rv = mEventTarget->Dispatch(this, NS_DISPATCH_NORMAL);
NS_ENSURE_SUCCESS_VOID(rv);
}
private:
~OpenFileAndSendFDRunnable()
{
MOZ_ASSERT(!mFD);
}
// This shouldn't be called directly except by the event loop. Use Dispatch
// to start the sequence.
NS_IMETHOD Run()
{
if (NS_IsMainThread()) {
SendResponse();
} else if (mFD) {
CloseFile();
} else {
OpenFile();
}
return NS_OK;
}
void SendResponse()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mTabParent);
MOZ_ASSERT(mEventTarget);
MOZ_ASSERT(mFD);
nsRefPtr<TabParent> tabParent;
mTabParent.swap(tabParent);
FileDescriptor::PlatformHandleType handle =
FileDescriptor::PlatformHandleType(PR_FileDesc2NativeHandle(mFD));
mozilla::unused << tabParent->SendCacheFileDescriptor(mPath, handle);
nsCOMPtr<nsIEventTarget> eventTarget;
mEventTarget.swap(eventTarget);
if (NS_FAILED(eventTarget->Dispatch(this, NS_DISPATCH_NORMAL))) {
NS_WARNING("Failed to dispatch to stream transport service!");
// It's probably safer to take the main thread IO hit here rather
// than leak a file descriptor.
CloseFile();
}
}
void OpenFile()
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(!mFD);
nsCOMPtr<nsIFile> file;
nsresult rv = NS_NewLocalFile(mPath, false, getter_AddRefs(file));
NS_ENSURE_SUCCESS_VOID(rv);
PRFileDesc* fd;
rv = file->OpenNSPRFileDesc(PR_RDONLY, 0, &fd);
NS_ENSURE_SUCCESS_VOID(rv);
mFD = fd;
if (NS_FAILED(NS_DispatchToMainThread(this, NS_DISPATCH_NORMAL))) {
NS_WARNING("Failed to dispatch to main thread!");
CloseFile();
}
}
void CloseFile()
{
// It's possible for this to happen on the main thread if the dispatch
// to the stream service fails after we've already opened the file so
// we can't assert the thread we're running on.
MOZ_ASSERT(mFD);
PR_Close(mFD);
mFD = nullptr;
}
};
namespace mozilla {
namespace dom {
TabParent* sEventCapturer;
TabParent *TabParent::mIMETabParent = nullptr;
NS_IMPL_ISUPPORTS3(TabParent, nsITabParent, nsIAuthPromptProvider, nsISecureBrowserUI)
TabParent::TabParent(ContentParent* aManager, const TabContext& aContext)
: TabContext(aContext)
, mFrameElement(NULL)
, mIMESelectionAnchor(0)
, mIMESelectionFocus(0)
, mIMEComposing(false)
, mIMECompositionEnding(false)
, mIMECompositionStart(0)
, mIMESeqno(0)
, mEventCaptureDepth(0)
, mRect(0, 0, 0, 0)
, mDimensions(0, 0)
, mOrientation(0)
, mDPI(0)
, mDefaultScale(0)
, mShown(false)
, mUpdatedDimensions(false)
, mManager(aManager)
, mMarkedDestroying(false)
, mIsDestroyed(false)
, mAppPackageFileDescriptorSent(false)
{
}
TabParent::~TabParent()
{
}
void
TabParent::SetOwnerElement(nsIDOMElement* aElement)
{
mFrameElement = aElement;
TryCacheDPIAndScale();
}
void
TabParent::GetAppType(nsAString& aOut)
{
aOut.Truncate();
nsCOMPtr<Element> elem = do_QueryInterface(mFrameElement);
if (!elem) {
return;
}
elem->GetAttr(kNameSpaceID_None, nsGkAtoms::mozapptype, aOut);
}
bool
TabParent::IsVisible()
{
nsRefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
if (!frameLoader) {
return false;
}
bool visible = false;
frameLoader->GetVisible(&visible);
return visible;
}
void
TabParent::Destroy()
{
if (mIsDestroyed) {
return;
}
// If this fails, it's most likely due to a content-process crash,
// and auto-cleanup will kick in. Otherwise, the child side will
// destroy itself and send back __delete__().
unused << SendDestroy();
const InfallibleTArray<PIndexedDBParent*>& idbParents =
ManagedPIndexedDBParent();
for (uint32_t i = 0; i < idbParents.Length(); ++i) {
static_cast<IndexedDBParent*>(idbParents[i])->Disconnect();
}
if (RenderFrameParent* frame = GetRenderFrame()) {
frame->Destroy();
}
mIsDestroyed = true;
Manager()->NotifyTabDestroying(this);
mMarkedDestroying = true;
}
bool
TabParent::Recv__delete__()
{
Manager()->NotifyTabDestroyed(this, mMarkedDestroying);
return true;
}
void
TabParent::ActorDestroy(ActorDestroyReason why)
{
if (sEventCapturer == this) {
sEventCapturer = nullptr;
}
if (mIMETabParent == this) {
mIMETabParent = nullptr;
}
nsRefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
nsCOMPtr<nsIObserverService> os = services::GetObserverService();
if (frameLoader) {
ReceiveMessage(CHILD_PROCESS_SHUTDOWN_MESSAGE, false, nullptr, nullptr);
frameLoader->DestroyChild();
if (why == AbnormalShutdown && os) {
os->NotifyObservers(NS_ISUPPORTS_CAST(nsIFrameLoader*, frameLoader),
"oop-frameloader-crashed", nullptr);
}
}
if (os) {
os->NotifyObservers(NS_ISUPPORTS_CAST(nsITabParent*, this), "ipc:browser-destroyed", nullptr);
}
}
bool
TabParent::RecvMoveFocus(const bool& aForward)
{
nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID);
if (fm) {
nsCOMPtr<nsIDOMElement> dummy;
uint32_t type = aForward ? uint32_t(nsIFocusManager::MOVEFOCUS_FORWARD)
: uint32_t(nsIFocusManager::MOVEFOCUS_BACKWARD);
fm->MoveFocus(nullptr, mFrameElement, type, nsIFocusManager::FLAG_BYKEY,
getter_AddRefs(dummy));
}
return true;
}
bool
TabParent::RecvEvent(const RemoteDOMEvent& aEvent)
{
nsCOMPtr<nsIDOMEvent> event = do_QueryInterface(aEvent.mEvent);
NS_ENSURE_TRUE(event, true);
nsCOMPtr<mozilla::dom::EventTarget> target = do_QueryInterface(mFrameElement);
NS_ENSURE_TRUE(target, true);
event->SetOwner(target);
bool dummy;
target->DispatchEvent(event, &dummy);
return true;
}
bool
TabParent::AnswerCreateWindow(PBrowserParent** retval)
{
if (!mBrowserDOMWindow) {
return false;
}
// Only non-app, non-browser processes may call CreateWindow.
if (IsBrowserOrApp()) {
return false;
}
// Get a new rendering area from the browserDOMWin. We don't want
// to be starting any loads here, so get it with a null URI.
nsCOMPtr<nsIFrameLoaderOwner> frameLoaderOwner;
mBrowserDOMWindow->OpenURIInFrame(nullptr, nullptr,
nsIBrowserDOMWindow::OPEN_NEWTAB,
nsIBrowserDOMWindow::OPEN_NEW,
getter_AddRefs(frameLoaderOwner));
if (!frameLoaderOwner) {
return false;
}
nsRefPtr<nsFrameLoader> frameLoader = frameLoaderOwner->GetFrameLoader();
if (!frameLoader) {
return false;
}
*retval = frameLoader->GetRemoteBrowser();
return true;
}
void
TabParent::LoadURL(nsIURI* aURI)
{
MOZ_ASSERT(aURI);
if (mIsDestroyed) {
return;
}
nsCString spec;
aURI->GetSpec(spec);
if (!mShown) {
NS_WARNING(nsPrintfCString("TabParent::LoadURL(%s) called before "
"Show(). Ignoring LoadURL.\n",
spec.get()).get());
return;
}
unused << SendLoadURL(spec);
// If this app is a packaged app then we can speed startup by sending over
// the file descriptor for the "application.zip" file that it will
// invariably request. Only do this once.
if (!mAppPackageFileDescriptorSent) {
mAppPackageFileDescriptorSent = true;
nsCOMPtr<mozIApplication> app = GetOwnOrContainingApp();
if (app) {
nsString manifestURL;
nsresult rv = app->GetManifestURL(manifestURL);
NS_ENSURE_SUCCESS_VOID(rv);
if (StringBeginsWith(manifestURL, NS_LITERAL_STRING("app:"))) {
nsString basePath;
rv = app->GetBasePath(basePath);
NS_ENSURE_SUCCESS_VOID(rv);
nsString appId;
rv = app->GetId(appId);
NS_ENSURE_SUCCESS_VOID(rv);
nsCOMPtr<nsIFile> packageFile;
rv = NS_NewLocalFile(basePath, false,
getter_AddRefs(packageFile));
NS_ENSURE_SUCCESS_VOID(rv);
rv = packageFile->Append(appId);
NS_ENSURE_SUCCESS_VOID(rv);
rv = packageFile->Append(NS_LITERAL_STRING("application.zip"));
NS_ENSURE_SUCCESS_VOID(rv);
nsString path;
rv = packageFile->GetPath(path);
NS_ENSURE_SUCCESS_VOID(rv);
nsRefPtr<OpenFileAndSendFDRunnable> openFileRunnable =
new OpenFileAndSendFDRunnable(path, this);
openFileRunnable->Dispatch();
}
}
}
}
void
TabParent::Show(const nsIntSize& size)
{
// sigh
mShown = true;
mDimensions = size;
if (!mIsDestroyed) {
unused << SendShow(size);
}
}
void
TabParent::UpdateDimensions(const nsRect& rect, const nsIntSize& size)
{
if (mIsDestroyed) {
return;
}
hal::ScreenConfiguration config;
hal::GetCurrentScreenConfiguration(&config);
ScreenOrientation orientation = config.orientation();
if (!mUpdatedDimensions || mOrientation != orientation ||
mDimensions != size || !mRect.IsEqualEdges(rect)) {
mUpdatedDimensions = true;
mRect = rect;
mDimensions = size;
mOrientation = orientation;
unused << SendUpdateDimensions(mRect, mDimensions, mOrientation);
if (RenderFrameParent* rfp = GetRenderFrame()) {
rfp->NotifyDimensionsChanged(ScreenIntSize::FromUnknownSize(
gfx::IntSize(mDimensions.width, mDimensions.height)));
}
}
}
void
TabParent::UpdateFrame(const FrameMetrics& aFrameMetrics)
{
if (!mIsDestroyed) {
unused << SendUpdateFrame(aFrameMetrics);
}
}
void TabParent::HandleDoubleTap(const CSSIntPoint& aPoint)
{
if (!mIsDestroyed) {
unused << SendHandleDoubleTap(aPoint);
}
}
void TabParent::HandleSingleTap(const CSSIntPoint& aPoint)
{
if (!mIsDestroyed) {
unused << SendHandleSingleTap(aPoint);
}
}
void TabParent::HandleLongTap(const CSSIntPoint& aPoint)
{
if (!mIsDestroyed) {
unused << SendHandleLongTap(aPoint);
}
}
void
TabParent::Activate()
{
if (!mIsDestroyed) {
unused << SendActivate();
}
}
void
TabParent::Deactivate()
{
if (!mIsDestroyed) {
unused << SendDeactivate();
}
}
NS_IMETHODIMP
TabParent::Init(nsIDOMWindow *window)
{
return NS_OK;
}
NS_IMETHODIMP
TabParent::GetState(uint32_t *aState)
{
NS_ENSURE_ARG(aState);
NS_WARNING("SecurityState not valid here");
*aState = 0;
return NS_OK;
}
NS_IMETHODIMP
TabParent::SetDocShell(nsIDocShell *aDocShell)
{
NS_ENSURE_ARG(aDocShell);
NS_WARNING("No mDocShell member in TabParent so there is no docShell to set");
return NS_OK;
}
PDocumentRendererParent*
TabParent::AllocPDocumentRendererParent(const nsRect& documentRect,
const gfxMatrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags,
const bool& flushLayout,
const nsIntSize& renderSize)
{
return new DocumentRendererParent();
}
bool
TabParent::DeallocPDocumentRendererParent(PDocumentRendererParent* actor)
{
delete actor;
return true;
}
PContentPermissionRequestParent*
TabParent::AllocPContentPermissionRequestParent(const nsCString& type, const nsCString& access, const IPC::Principal& principal)
{
return new ContentPermissionRequestParent(type, access, mFrameElement, principal);
}
bool
TabParent::DeallocPContentPermissionRequestParent(PContentPermissionRequestParent* actor)
{
delete actor;
return true;
}
void
TabParent::SendMouseEvent(const nsAString& aType, float aX, float aY,
int32_t aButton, int32_t aClickCount,
int32_t aModifiers, bool aIgnoreRootScrollFrame)
{
if (!mIsDestroyed) {
unused << PBrowserParent::SendMouseEvent(nsString(aType), aX, aY,
aButton, aClickCount,
aModifiers, aIgnoreRootScrollFrame);
}
}
void
TabParent::SendKeyEvent(const nsAString& aType,
int32_t aKeyCode,
int32_t aCharCode,
int32_t aModifiers,
bool aPreventDefault)
{
if (!mIsDestroyed) {
unused << PBrowserParent::SendKeyEvent(nsString(aType), aKeyCode, aCharCode,
aModifiers, aPreventDefault);
}
}
bool TabParent::SendRealMouseEvent(nsMouseEvent& event)
{
if (mIsDestroyed) {
return false;
}
nsMouseEvent e(event);
MaybeForwardEventToRenderFrame(event, &e);
return PBrowserParent::SendRealMouseEvent(e);
}
bool TabParent::SendMouseWheelEvent(WheelEvent& event)
{
if (mIsDestroyed) {
return false;
}
WheelEvent e(event);
MaybeForwardEventToRenderFrame(event, &e);
return PBrowserParent::SendMouseWheelEvent(event);
}
bool TabParent::SendRealKeyEvent(nsKeyEvent& event)
{
if (mIsDestroyed) {
return false;
}
nsKeyEvent e(event);
MaybeForwardEventToRenderFrame(event, &e);
return PBrowserParent::SendRealKeyEvent(e);
}
bool TabParent::SendRealTouchEvent(nsTouchEvent& event)
{
if (mIsDestroyed) {
return false;
}
if (event.message == NS_TOUCH_START) {
// Adjust the widget coordinates to be relative to our frame.
nsRefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
if (!frameLoader) {
// No frame anymore?
sEventCapturer = nullptr;
return false;
}
mChildProcessOffsetAtTouchStart =
nsEventStateManager::GetChildProcessOffset(frameLoader,
event);
MOZ_ASSERT((!sEventCapturer && mEventCaptureDepth == 0) ||
(sEventCapturer == this && mEventCaptureDepth > 0));
// We want to capture all remaining touch events in this series
// for fast-path dispatch.
sEventCapturer = this;
++mEventCaptureDepth;
}
nsTouchEvent e(event);
// PresShell::HandleEventInternal adds touches on touch end/cancel.
// This confuses remote content into thinking that the added touches
// are part of the touchend/cancel, when actually they're not.
if (event.message == NS_TOUCH_END || event.message == NS_TOUCH_CANCEL) {
for (int i = e.touches.Length() - 1; i >= 0; i--) {
if (!e.touches[i]->mChanged) {
e.touches.RemoveElementAt(i);
}
}
}
MaybeForwardEventToRenderFrame(event, &e);
return (e.message == NS_TOUCH_MOVE) ?
PBrowserParent::SendRealTouchMoveEvent(e) :
PBrowserParent::SendRealTouchEvent(e);
}
/*static*/ TabParent*
TabParent::GetEventCapturer()
{
return sEventCapturer;
}
bool
TabParent::TryCapture(const nsGUIEvent& aEvent)
{
MOZ_ASSERT(sEventCapturer == this && mEventCaptureDepth > 0);
if (aEvent.eventStructType != NS_TOUCH_EVENT) {
// Only capture of touch events is implemented, for now.
return false;
}
nsTouchEvent event(static_cast<const nsTouchEvent&>(aEvent));
bool isTouchPointUp = (event.message == NS_TOUCH_END ||
event.message == NS_TOUCH_CANCEL);
if (event.message == NS_TOUCH_START || isTouchPointUp) {
// Let the DOM see touch start/end events so that its touch-point
// state stays consistent.
if (isTouchPointUp && 0 == --mEventCaptureDepth) {
// All event series are un-captured, don't try to catch any
// more.
sEventCapturer = nullptr;
}
return false;
}
nsEventStateManager::MapEventCoordinatesForChildProcess(
mChildProcessOffsetAtTouchStart, &event);
SendRealTouchEvent(event);
return true;
}
bool
TabParent::RecvSyncMessage(const nsString& aMessage,
const ClonedMessageData& aData,
InfallibleTArray<nsString>* aJSONRetVal)
{
StructuredCloneData cloneData = ipc::UnpackClonedMessageDataForParent(aData);
return ReceiveMessage(aMessage, true, &cloneData, aJSONRetVal);
}
bool
TabParent::RecvAsyncMessage(const nsString& aMessage,
const ClonedMessageData& aData)
{
StructuredCloneData cloneData = ipc::UnpackClonedMessageDataForParent(aData);
return ReceiveMessage(aMessage, false, &cloneData, nullptr);
}
bool
TabParent::RecvSetCursor(const uint32_t& aCursor)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (widget) {
widget->SetCursor((nsCursor) aCursor);
}
return true;
}
bool
TabParent::RecvSetBackgroundColor(const nscolor& aColor)
{
if (RenderFrameParent* frame = GetRenderFrame()) {
frame->SetBackgroundColor(aColor);
}
return true;
}
bool
TabParent::RecvNotifyIMEFocus(const bool& aFocus,
nsIMEUpdatePreference* aPreference,
uint32_t* aSeqno)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
aPreference->mWantUpdates = nsIMEUpdatePreference::NOTIFY_NOTHING;
aPreference->mWantHints = false;
return true;
}
*aSeqno = mIMESeqno;
mIMETabParent = aFocus ? this : nullptr;
mIMESelectionAnchor = 0;
mIMESelectionFocus = 0;
widget->NotifyIME(aFocus ? NOTIFY_IME_OF_FOCUS : NOTIFY_IME_OF_BLUR);
if (aFocus) {
*aPreference = widget->GetIMEUpdatePreference();
} else {
mIMECacheText.Truncate(0);
}
return true;
}
bool
TabParent::RecvNotifyIMETextChange(const uint32_t& aStart,
const uint32_t& aEnd,
const uint32_t& aNewEnd)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return true;
widget->NotifyIMEOfTextChange(aStart, aEnd, aNewEnd);
return true;
}
bool
TabParent::RecvNotifyIMESelection(const uint32_t& aSeqno,
const uint32_t& aAnchor,
const uint32_t& aFocus)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return true;
if (aSeqno == mIMESeqno) {
mIMESelectionAnchor = aAnchor;
mIMESelectionFocus = aFocus;
widget->NotifyIME(NOTIFY_IME_OF_SELECTION_CHANGE);
}
return true;
}
bool
TabParent::RecvNotifyIMETextHint(const nsString& aText)
{
// Replace our cache with new text
mIMECacheText = aText;
return true;
}
/**
* Try to answer query event using cached text.
*
* For NS_QUERY_SELECTED_TEXT, fail if the cache doesn't contain the whole
* selected range. (This shouldn't happen because PuppetWidget should have
* already sent the whole selection.)
*
* For NS_QUERY_TEXT_CONTENT, fail only if the cache doesn't overlap with
* the queried range. Note the difference from above. We use
* this behavior because a normal NS_QUERY_TEXT_CONTENT event is allowed to
* have out-of-bounds offsets, so that widget can request content without
* knowing the exact length of text. It's up to widget to handle cases when
* the returned offset/length are different from the queried offset/length.
*/
bool
TabParent::HandleQueryContentEvent(nsQueryContentEvent& aEvent)
{
aEvent.mSucceeded = false;
aEvent.mWasAsync = false;
aEvent.mReply.mFocusedWidget = nsCOMPtr<nsIWidget>(GetWidget()).get();
switch (aEvent.message)
{
case NS_QUERY_SELECTED_TEXT:
{
aEvent.mReply.mOffset = std::min(mIMESelectionAnchor, mIMESelectionFocus);
if (mIMESelectionAnchor == mIMESelectionFocus) {
aEvent.mReply.mString.Truncate(0);
} else {
if (mIMESelectionAnchor > mIMECacheText.Length() ||
mIMESelectionFocus > mIMECacheText.Length()) {
break;
}
uint32_t selLen = mIMESelectionAnchor > mIMESelectionFocus ?
mIMESelectionAnchor - mIMESelectionFocus :
mIMESelectionFocus - mIMESelectionAnchor;
aEvent.mReply.mString = Substring(mIMECacheText,
aEvent.mReply.mOffset,
selLen);
}
aEvent.mReply.mReversed = mIMESelectionFocus < mIMESelectionAnchor;
aEvent.mReply.mHasSelection = true;
aEvent.mSucceeded = true;
}
break;
case NS_QUERY_TEXT_CONTENT:
{
uint32_t inputOffset = aEvent.mInput.mOffset,
inputEnd = inputOffset + aEvent.mInput.mLength;
if (inputEnd > mIMECacheText.Length()) {
inputEnd = mIMECacheText.Length();
}
if (inputEnd < inputOffset) {
break;
}
aEvent.mReply.mOffset = inputOffset;
aEvent.mReply.mString = Substring(mIMECacheText,
inputOffset,
inputEnd - inputOffset);
aEvent.mSucceeded = true;
}
break;
}
return true;
}
bool
TabParent::SendCompositionEvent(nsCompositionEvent& event)
{
if (mIsDestroyed) {
return false;
}
mIMEComposing = event.message != NS_COMPOSITION_END;
mIMECompositionStart = std::min(mIMESelectionAnchor, mIMESelectionFocus);
if (mIMECompositionEnding)
return true;
event.seqno = ++mIMESeqno;
return PBrowserParent::SendCompositionEvent(event);
}
/**
* During REQUEST_TO_COMMIT_COMPOSITION or REQUEST_TO_CANCEL_COMPOSITION,
* widget usually sends a NS_TEXT_TEXT event to finalize or clear the
* composition, respectively
*
* Because the event will not reach content in time, we intercept it
* here and pass the text as the EndIMEComposition return value
*/
bool
TabParent::SendTextEvent(nsTextEvent& event)
{
if (mIsDestroyed) {
return false;
}
if (mIMECompositionEnding) {
mIMECompositionText = event.theText;
return true;
}
// We must be able to simulate the selection because
// we might not receive selection updates in time
if (!mIMEComposing) {
mIMECompositionStart = std::min(mIMESelectionAnchor, mIMESelectionFocus);
}
mIMESelectionAnchor = mIMESelectionFocus =
mIMECompositionStart + event.theText.Length();
event.seqno = ++mIMESeqno;
return PBrowserParent::SendTextEvent(event);
}
bool
TabParent::SendSelectionEvent(nsSelectionEvent& event)
{
if (mIsDestroyed) {
return false;
}
mIMESelectionAnchor = event.mOffset + (event.mReversed ? event.mLength : 0);
mIMESelectionFocus = event.mOffset + (!event.mReversed ? event.mLength : 0);
event.seqno = ++mIMESeqno;
return PBrowserParent::SendSelectionEvent(event);
}
/*static*/ TabParent*
TabParent::GetFrom(nsFrameLoader* aFrameLoader)
{
if (!aFrameLoader) {
return nullptr;
}
PBrowserParent* remoteBrowser = aFrameLoader->GetRemoteBrowser();
return static_cast<TabParent*>(remoteBrowser);
}
/*static*/ TabParent*
TabParent::GetFrom(nsIContent* aContent)
{
nsCOMPtr<nsIFrameLoaderOwner> loaderOwner = do_QueryInterface(aContent);
if (!loaderOwner) {
return nullptr;
}
nsRefPtr<nsFrameLoader> frameLoader = loaderOwner->GetFrameLoader();
return GetFrom(frameLoader);
}
RenderFrameParent*
TabParent::GetRenderFrame()
{
if (ManagedPRenderFrameParent().IsEmpty()) {
return nullptr;
}
return static_cast<RenderFrameParent*>(ManagedPRenderFrameParent()[0]);
}
bool
TabParent::RecvEndIMEComposition(const bool& aCancel,
nsString* aComposition)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget)
return true;
mIMECompositionEnding = true;
widget->NotifyIME(aCancel ? REQUEST_TO_CANCEL_COMPOSITION :
REQUEST_TO_COMMIT_COMPOSITION);
mIMECompositionEnding = false;
*aComposition = mIMECompositionText;
mIMECompositionText.Truncate(0);
return true;
}
bool
TabParent::RecvGetInputContext(int32_t* aIMEEnabled,
int32_t* aIMEOpen,
intptr_t* aNativeIMEContext)
{
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget) {
*aIMEEnabled = IMEState::DISABLED;
*aIMEOpen = IMEState::OPEN_STATE_NOT_SUPPORTED;
*aNativeIMEContext = 0;
return true;
}
InputContext context = widget->GetInputContext();
*aIMEEnabled = static_cast<int32_t>(context.mIMEState.mEnabled);
*aIMEOpen = static_cast<int32_t>(context.mIMEState.mOpen);
*aNativeIMEContext = reinterpret_cast<intptr_t>(context.mNativeIMEContext);
return true;
}
bool
TabParent::RecvSetInputContext(const int32_t& aIMEEnabled,
const int32_t& aIMEOpen,
const nsString& aType,
const nsString& aInputmode,
const nsString& aActionHint,
const int32_t& aCause,
const int32_t& aFocusChange)
{
// mIMETabParent (which is actually static) tracks which if any TabParent has IMEFocus
// When the input mode is set to anything but IMEState::DISABLED,
// mIMETabParent should be set to this
mIMETabParent =
aIMEEnabled != static_cast<int32_t>(IMEState::DISABLED) ? this : nullptr;
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget || !AllowContentIME())
return true;
InputContext context;
context.mIMEState.mEnabled = static_cast<IMEState::Enabled>(aIMEEnabled);
context.mIMEState.mOpen = static_cast<IMEState::Open>(aIMEOpen);
context.mHTMLInputType.Assign(aType);
context.mHTMLInputInputmode.Assign(aInputmode);
context.mActionHint.Assign(aActionHint);
InputContextAction action(
static_cast<InputContextAction::Cause>(aCause),
static_cast<InputContextAction::FocusChange>(aFocusChange));
widget->SetInputContext(context, action);
nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
if (!observerService)
return true;
nsAutoString state;
state.AppendInt(aIMEEnabled);
observerService->NotifyObservers(nullptr, "ime-enabled-state-changed", state.get());
return true;
}
bool
TabParent::RecvGetDPI(float* aValue)
{
TryCacheDPIAndScale();
NS_ABORT_IF_FALSE(mDPI > 0,
"Must not ask for DPI before OwnerElement is received!");
*aValue = mDPI;
return true;
}
bool
TabParent::RecvGetDefaultScale(double* aValue)
{
TryCacheDPIAndScale();
NS_ABORT_IF_FALSE(mDefaultScale > 0,
"Must not ask for scale before OwnerElement is received!");
*aValue = mDefaultScale;
return true;
}
bool
TabParent::RecvGetWidgetNativeData(WindowsHandle* aValue)
{
nsCOMPtr<nsIContent> content = do_QueryInterface(mFrameElement);
if (content) {
nsIPresShell* shell = content->OwnerDoc()->GetShell();
if (shell) {
nsViewManager* vm = shell->GetViewManager();
nsCOMPtr<nsIWidget> widget;
vm->GetRootWidget(getter_AddRefs(widget));
if (widget) {
*aValue = reinterpret_cast<WindowsHandle>(
widget->GetNativeData(NS_NATIVE_SHAREABLE_WINDOW));
return true;
}
}
}
return false;
}
bool
TabParent::ReceiveMessage(const nsString& aMessage,
bool aSync,
const StructuredCloneData* aCloneData,
InfallibleTArray<nsString>* aJSONRetVal)
{
nsRefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
if (frameLoader && frameLoader->GetFrameMessageManager()) {
nsRefPtr<nsFrameMessageManager> manager =
frameLoader->GetFrameMessageManager();
AutoSafeJSContext ctx;
uint32_t len = 0; //TODO: obtain a real value in bug 572685
// Because we want JS messages to have always the same properties,
// create array even if len == 0.
JS::Rooted<JSObject*> objectsArray(ctx, JS_NewArrayObject(ctx, len, NULL));
if (!objectsArray) {
return false;
}
manager->ReceiveMessage(mFrameElement,
aMessage,
aSync,
aCloneData,
objectsArray,
aJSONRetVal);
}
return true;
}
PIndexedDBParent*
TabParent::AllocPIndexedDBParent(const nsCString& aASCIIOrigin, bool* /* aAllowed */)
{
return new IndexedDBParent(this);
}
bool
TabParent::DeallocPIndexedDBParent(PIndexedDBParent* aActor)
{
delete aActor;
return true;
}
bool
TabParent::RecvPIndexedDBConstructor(PIndexedDBParent* aActor,
const nsCString& aASCIIOrigin,
bool* aAllowed)
{
nsRefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::GetOrCreate();
NS_ENSURE_TRUE(mgr, false);
if (!IndexedDatabaseManager::IsMainProcess()) {
NS_RUNTIMEABORT("Not supported yet!");
}
nsresult rv;
// XXXbent Need to make sure we have a whitelist for chrome databases!
// Verify that the child is requesting to access a database it's allowed to
// see. (aASCIIOrigin here specifies a TabContext + a website origin, and
// we're checking that the TabContext may access it.)
//
// We have to check IsBrowserOrApp() because TabContextMayAccessOrigin will
// fail if we're not a browser-or-app, since aASCIIOrigin will be a plain URI,
// but TabContextMayAccessOrigin will construct an extended origin using
// app-id 0. Note that as written below, we allow a non browser-or-app child
// to read any database. That's a security hole, but we don't ship a
// configuration which creates non browser-or-app children, so it's not a big
// deal.
if (!aASCIIOrigin.EqualsLiteral("chrome") && IsBrowserOrApp() &&
!IndexedDatabaseManager::TabContextMayAccessOrigin(*this, aASCIIOrigin)) {
NS_WARNING("App attempted to open databases that it does not have "
"permission to access!");
return false;
}
nsCOMPtr<nsINode> node = do_QueryInterface(GetOwnerElement());
NS_ENSURE_TRUE(node, false);
nsIDocument* doc = node->GetOwnerDocument();
NS_ENSURE_TRUE(doc, false);
nsCOMPtr<nsPIDOMWindow> window = doc->GetInnerWindow();
NS_ENSURE_TRUE(window, false);
// Let's do a current inner check to see if the inner is active or is in
// bf cache, and bail out if it's not active.
nsCOMPtr<nsPIDOMWindow> outer = doc->GetWindow();
if (!outer || outer->GetCurrentInnerWindow() != window) {
*aAllowed = false;
return true;
}
ContentParent* contentParent = Manager();
NS_ASSERTION(contentParent, "Null manager?!");
nsRefPtr<IDBFactory> factory;
rv = IDBFactory::Create(window, aASCIIOrigin, contentParent,
getter_AddRefs(factory));
NS_ENSURE_SUCCESS(rv, false);
if (!factory) {
*aAllowed = false;
return true;
}
IndexedDBParent* actor = static_cast<IndexedDBParent*>(aActor);
actor->mFactory = factory;
actor->mASCIIOrigin = aASCIIOrigin;
*aAllowed = true;
return true;
}
// nsIAuthPromptProvider
// This method is largely copied from nsDocShell::GetAuthPrompt
NS_IMETHODIMP
TabParent::GetAuthPrompt(uint32_t aPromptReason, const nsIID& iid,
void** aResult)
{
// we're either allowing auth, or it's a proxy request
nsresult rv;
nsCOMPtr<nsIPromptFactory> wwatch =
do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMWindow> window;
nsCOMPtr<nsIContent> frame = do_QueryInterface(mFrameElement);
if (frame)
window = do_QueryInterface(frame->OwnerDoc()->GetWindow());
// Get an auth prompter for our window so that the parenting
// of the dialogs works as it should when using tabs.
return wwatch->GetPrompt(window, iid,
reinterpret_cast<void**>(aResult));
}
PContentDialogParent*
TabParent::AllocPContentDialogParent(const uint32_t& aType,
const nsCString& aName,
const nsCString& aFeatures,
const InfallibleTArray<int>& aIntParams,
const InfallibleTArray<nsString>& aStringParams)
{
ContentDialogParent* parent = new ContentDialogParent();
nsCOMPtr<nsIDialogParamBlock> params =
do_CreateInstance(NS_DIALOGPARAMBLOCK_CONTRACTID);
TabChild::ArraysToParams(aIntParams, aStringParams, params);
mDelayedDialogs.AppendElement(new DelayedDialogData(parent, aType, aName,
aFeatures, params));
nsRefPtr<nsIRunnable> ev =
NS_NewRunnableMethod(this, &TabParent::HandleDelayedDialogs);
NS_DispatchToCurrentThread(ev);
return parent;
}
void
TabParent::HandleDelayedDialogs()
{
nsCOMPtr<nsIWindowWatcher> ww = do_GetService(NS_WINDOWWATCHER_CONTRACTID);
nsCOMPtr<nsIDOMWindow> window;
nsCOMPtr<nsIContent> frame = do_QueryInterface(mFrameElement);
if (frame) {
window = do_QueryInterface(frame->OwnerDoc()->GetWindow());
}
nsCOMPtr<nsIDialogCreator> dialogCreator = do_QueryInterface(mBrowserDOMWindow);
while (!ShouldDelayDialogs() && mDelayedDialogs.Length()) {
uint32_t index = mDelayedDialogs.Length() - 1;
DelayedDialogData* data = mDelayedDialogs[index];
mDelayedDialogs.RemoveElementAt(index);
nsCOMPtr<nsIDialogParamBlock> params;
params.swap(data->mParams);
PContentDialogParent* dialog = data->mDialog;
if (dialogCreator) {
dialogCreator->OpenDialog(data->mType,
data->mName, data->mFeatures,
params, mFrameElement);
} else if (ww) {
nsAutoCString url;
if (data->mType) {
if (data->mType == nsIDialogCreator::SELECT_DIALOG) {
url.Assign("chrome://global/content/selectDialog.xul");
} else if (data->mType == nsIDialogCreator::GENERIC_DIALOG) {
url.Assign("chrome://global/content/commonDialog.xul");
}
nsCOMPtr<nsISupports> arguments(do_QueryInterface(params));
nsCOMPtr<nsIDOMWindow> dialog;
ww->OpenWindow(window, url.get(), data->mName.get(),
data->mFeatures.get(), arguments, getter_AddRefs(dialog));
} else {
NS_WARNING("unknown dialog types aren't automatically supported in E10s yet!");
}
}
delete data;
if (dialog) {
InfallibleTArray<int32_t> intParams;
InfallibleTArray<nsString> stringParams;
TabChild::ParamsToArrays(params, intParams, stringParams);
unused << PContentDialogParent::Send__delete__(dialog,
intParams, stringParams);
}
}
if (ShouldDelayDialogs() && mDelayedDialogs.Length()) {
nsContentUtils::DispatchTrustedEvent(frame->OwnerDoc(), frame,
NS_LITERAL_STRING("MozDelayedModalDialog"),
true, true);
}
}
PRenderFrameParent*
TabParent::AllocPRenderFrameParent(ScrollingBehavior* aScrolling,
TextureFactoryIdentifier* aTextureFactoryIdentifier,
uint64_t* aLayersId)
{
MOZ_ASSERT(ManagedPRenderFrameParent().IsEmpty());
nsRefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
if (!frameLoader) {
NS_WARNING("Can't allocate graphics resources, aborting subprocess");
return nullptr;
}
*aScrolling = UseAsyncPanZoom() ? ASYNC_PAN_ZOOM : DEFAULT_SCROLLING;
return new RenderFrameParent(frameLoader,
*aScrolling,
aTextureFactoryIdentifier, aLayersId);
}
bool
TabParent::DeallocPRenderFrameParent(PRenderFrameParent* aFrame)
{
delete aFrame;
return true;
}
mozilla::docshell::POfflineCacheUpdateParent*
TabParent::AllocPOfflineCacheUpdateParent(const URIParams& aManifestURI,
const URIParams& aDocumentURI,
const bool& stickDocument)
{
nsRefPtr<mozilla::docshell::OfflineCacheUpdateParent> update =
new mozilla::docshell::OfflineCacheUpdateParent(OwnOrContainingAppId(),
IsBrowserElement());
nsresult rv = update->Schedule(aManifestURI, aDocumentURI, stickDocument);
if (NS_FAILED(rv))
return nullptr;
POfflineCacheUpdateParent* result = update.get();
update.forget();
return result;
}
bool
TabParent::DeallocPOfflineCacheUpdateParent(mozilla::docshell::POfflineCacheUpdateParent* actor)
{
mozilla::docshell::OfflineCacheUpdateParent* update =
static_cast<mozilla::docshell::OfflineCacheUpdateParent*>(actor);
update->Release();
return true;
}
bool
TabParent::ShouldDelayDialogs()
{
nsRefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
NS_ENSURE_TRUE(frameLoader, true);
bool delay = false;
frameLoader->GetDelayRemoteDialogs(&delay);
return delay;
}
bool
TabParent::AllowContentIME()
{
nsFocusManager* fm = nsFocusManager::GetFocusManager();
NS_ENSURE_TRUE(fm, false);
nsCOMPtr<nsIContent> focusedContent = fm->GetFocusedContent();
if (focusedContent && focusedContent->IsEditable())
return false;
return true;
}
already_AddRefed<nsFrameLoader>
TabParent::GetFrameLoader() const
{
nsCOMPtr<nsIFrameLoaderOwner> frameLoaderOwner = do_QueryInterface(mFrameElement);
return frameLoaderOwner ? frameLoaderOwner->GetFrameLoader() : nullptr;
}
void
TabParent::TryCacheDPIAndScale()
{
if (mDPI > 0) {
return;
}
nsCOMPtr<nsIWidget> widget = GetWidget();
if (!widget && mFrameElement) {
// Even if we don't have a widget (e.g. because we're display:none), there's
// probably a widget somewhere in the hierarchy our frame element lives in.
nsCOMPtr<nsIDOMDocument> ownerDoc;
mFrameElement->GetOwnerDocument(getter_AddRefs(ownerDoc));
nsCOMPtr<nsIDocument> doc = do_QueryInterface(ownerDoc);
widget = nsContentUtils::WidgetForDocument(doc);
}
if (widget) {
mDPI = widget->GetDPI();
mDefaultScale = widget->GetDefaultScale();
}
}
already_AddRefed<nsIWidget>
TabParent::GetWidget() const
{
nsCOMPtr<nsIContent> content = do_QueryInterface(mFrameElement);
if (!content)
return nullptr;
nsIFrame *frame = content->GetPrimaryFrame();
if (!frame)
return nullptr;
nsCOMPtr<nsIWidget> widget = frame->GetNearestWidget();
return widget.forget();
}
bool
TabParent::UseAsyncPanZoom()
{
bool usingOffMainThreadCompositing = !!CompositorParent::CompositorLoop();
bool asyncPanZoomEnabled =
Preferences::GetBool("layers.async-pan-zoom.enabled", false);
return (usingOffMainThreadCompositing && asyncPanZoomEnabled &&
GetScrollingBehavior() == ASYNC_PAN_ZOOM);
}
void
TabParent::MaybeForwardEventToRenderFrame(const nsInputEvent& aEvent,
nsInputEvent* aOutEvent)
{
if (RenderFrameParent* rfp = GetRenderFrame()) {
rfp->NotifyInputEvent(aEvent, aOutEvent);
}
}
bool
TabParent::RecvBrowserFrameOpenWindow(PBrowserParent* aOpener,
const nsString& aURL,
const nsString& aName,
const nsString& aFeatures,
bool* aOutWindowOpened)
{
*aOutWindowOpened =
BrowserElementParent::OpenWindowOOP(static_cast<TabParent*>(aOpener),
this, aURL, aName, aFeatures);
return true;
}
bool
TabParent::RecvPRenderFrameConstructor(PRenderFrameParent* actor,
ScrollingBehavior* scrolling,
TextureFactoryIdentifier* factoryIdentifier,
uint64_t* layersId)
{
RenderFrameParent* rfp = GetRenderFrame();
if (mDimensions != nsIntSize() && rfp) {
rfp->NotifyDimensionsChanged(ScreenIntSize::FromUnknownSize(
gfx::IntSize(mDimensions.width, mDimensions.height)));
}
return true;
}
bool
TabParent::RecvZoomToRect(const CSSRect& aRect)
{
if (RenderFrameParent* rfp = GetRenderFrame()) {
rfp->ZoomToRect(aRect);
}
return true;
}
bool
TabParent::RecvUpdateZoomConstraints(const bool& aAllowZoom,
const float& aMinZoom,
const float& aMaxZoom)
{
if (RenderFrameParent* rfp = GetRenderFrame()) {
rfp->UpdateZoomConstraints(aAllowZoom, aMinZoom, aMaxZoom);
}
return true;
}
bool
TabParent::RecvContentReceivedTouch(const bool& aPreventDefault)
{
if (RenderFrameParent* rfp = GetRenderFrame()) {
rfp->ContentReceivedTouch(aPreventDefault);
}
return true;
}
} // namespace tabs
} // namespace mozilla
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