Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: fc3444996e
Fetching contributors…

Cannot retrieve contributors at this time

1932 lines (1591 sloc) 57.114 kb
/*
* Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "DOMWindow.h"
#include "AbstractDatabase.h"
#include "BackForwardController.h"
#include "BarInfo.h"
#include "BeforeUnloadEvent.h"
#include "CSSComputedStyleDeclaration.h"
#include "CSSRuleList.h"
#include "Chrome.h"
#include "Console.h"
#include "Crypto.h"
#include "DOMApplicationCache.h"
#include "DOMSelection.h"
#include "DOMSettableTokenList.h"
#include "DOMStringList.h"
#include "DOMTimer.h"
#include "DOMTokenList.h"
#include "DOMURL.h"
#include "DOMWindowExtension.h"
#include "DOMWindowNotifications.h"
#include "Database.h"
#include "DatabaseCallback.h"
#include "DeviceMotionController.h"
#include "DeviceOrientationController.h"
#include "Document.h"
#include "DocumentLoader.h"
#include "Element.h"
#include "EventException.h"
#include "EventListener.h"
#include "EventNames.h"
#include "ExceptionCode.h"
#include "FloatRect.h"
#include "Frame.h"
#include "FrameLoadRequest.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "HTMLFrameOwnerElement.h"
#include "History.h"
#include "InspectorInstrumentation.h"
#include "KURL.h"
#include "Location.h"
#include "MediaQueryList.h"
#include "MediaQueryMatcher.h"
#include "MessageEvent.h"
#include "Navigator.h"
#include "Page.h"
#include "PageGroup.h"
#include "PageTransitionEvent.h"
#include "Performance.h"
#include "PlatformScreen.h"
#include "RuntimeEnabledFeatures.h"
#include "ScheduledAction.h"
#include "Screen.h"
#include "ScriptCallStack.h"
#include "ScriptCallStackFactory.h"
#include "SecurityOrigin.h"
#include "SerializedScriptValue.h"
#include "Settings.h"
#include "Storage.h"
#include "StorageArea.h"
#include "StorageNamespace.h"
#include "StyleMedia.h"
#include "StyleResolver.h"
#include "SuddenTermination.h"
#include "WebKitPoint.h"
#include "WindowFeatures.h"
#include "WindowFocusAllowedIndicator.h"
#include <algorithm>
#include <wtf/CurrentTime.h>
#include <wtf/MainThread.h>
#include <wtf/MathExtras.h>
#include <wtf/text/Base64.h>
#include <wtf/text/WTFString.h>
#if ENABLE(REQUEST_ANIMATION_FRAME)
#include "RequestAnimationFrameCallback.h"
#endif
using std::min;
using std::max;
namespace WebCore {
class PostMessageTimer : public TimerBase {
public:
PostMessageTimer(DOMWindow* window, PassRefPtr<SerializedScriptValue> message, const String& sourceOrigin, PassRefPtr<DOMWindow> source, PassOwnPtr<MessagePortChannelArray> channels, SecurityOrigin* targetOrigin, PassRefPtr<ScriptCallStack> stackTrace)
: m_window(window)
, m_message(message)
, m_origin(sourceOrigin)
, m_source(source)
, m_channels(channels)
, m_targetOrigin(targetOrigin)
, m_stackTrace(stackTrace)
{
}
PassRefPtr<MessageEvent> event(ScriptExecutionContext* context)
{
OwnPtr<MessagePortArray> messagePorts = MessagePort::entanglePorts(*context, m_channels.release());
return MessageEvent::create(messagePorts.release(), m_message, m_origin, "", m_source);
}
SecurityOrigin* targetOrigin() const { return m_targetOrigin.get(); }
ScriptCallStack* stackTrace() const { return m_stackTrace.get(); }
private:
virtual void fired()
{
m_window->postMessageTimerFired(adoptPtr(this));
// This object is deleted now.
}
RefPtr<DOMWindow> m_window;
RefPtr<SerializedScriptValue> m_message;
String m_origin;
RefPtr<DOMWindow> m_source;
OwnPtr<MessagePortChannelArray> m_channels;
RefPtr<SecurityOrigin> m_targetOrigin;
RefPtr<ScriptCallStack> m_stackTrace;
};
typedef HashCountedSet<DOMWindow*> DOMWindowSet;
static DOMWindowSet& windowsWithUnloadEventListeners()
{
DEFINE_STATIC_LOCAL(DOMWindowSet, windowsWithUnloadEventListeners, ());
return windowsWithUnloadEventListeners;
}
static DOMWindowSet& windowsWithBeforeUnloadEventListeners()
{
DEFINE_STATIC_LOCAL(DOMWindowSet, windowsWithBeforeUnloadEventListeners, ());
return windowsWithBeforeUnloadEventListeners;
}
static void addUnloadEventListener(DOMWindow* domWindow)
{
DOMWindowSet& set = windowsWithUnloadEventListeners();
if (set.isEmpty())
disableSuddenTermination();
set.add(domWindow);
}
static void removeUnloadEventListener(DOMWindow* domWindow)
{
DOMWindowSet& set = windowsWithUnloadEventListeners();
DOMWindowSet::iterator it = set.find(domWindow);
if (it == set.end())
return;
set.remove(it);
if (set.isEmpty())
enableSuddenTermination();
}
static void removeAllUnloadEventListeners(DOMWindow* domWindow)
{
DOMWindowSet& set = windowsWithUnloadEventListeners();
DOMWindowSet::iterator it = set.find(domWindow);
if (it == set.end())
return;
set.removeAll(it);
if (set.isEmpty())
enableSuddenTermination();
}
static void addBeforeUnloadEventListener(DOMWindow* domWindow)
{
DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
if (set.isEmpty())
disableSuddenTermination();
set.add(domWindow);
}
static void removeBeforeUnloadEventListener(DOMWindow* domWindow)
{
DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
DOMWindowSet::iterator it = set.find(domWindow);
if (it == set.end())
return;
set.remove(it);
if (set.isEmpty())
enableSuddenTermination();
}
static void removeAllBeforeUnloadEventListeners(DOMWindow* domWindow)
{
DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
DOMWindowSet::iterator it = set.find(domWindow);
if (it == set.end())
return;
set.removeAll(it);
if (set.isEmpty())
enableSuddenTermination();
}
static bool allowsBeforeUnloadListeners(DOMWindow* window)
{
ASSERT_ARG(window, window);
Frame* frame = window->frame();
if (!frame)
return false;
Page* page = frame->page();
if (!page)
return false;
return frame == page->mainFrame();
}
bool DOMWindow::dispatchAllPendingBeforeUnloadEvents()
{
DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
if (set.isEmpty())
return true;
static bool alreadyDispatched = false;
ASSERT(!alreadyDispatched);
if (alreadyDispatched)
return true;
Vector<RefPtr<DOMWindow> > windows;
DOMWindowSet::iterator end = set.end();
for (DOMWindowSet::iterator it = set.begin(); it != end; ++it)
windows.append(it->first);
size_t size = windows.size();
for (size_t i = 0; i < size; ++i) {
DOMWindow* window = windows[i].get();
if (!set.contains(window))
continue;
Frame* frame = window->frame();
if (!frame)
continue;
if (!frame->loader()->shouldClose())
return false;
}
enableSuddenTermination();
alreadyDispatched = true;
return true;
}
unsigned DOMWindow::pendingUnloadEventListeners() const
{
return windowsWithUnloadEventListeners().count(const_cast<DOMWindow*>(this));
}
void DOMWindow::dispatchAllPendingUnloadEvents()
{
DOMWindowSet& set = windowsWithUnloadEventListeners();
if (set.isEmpty())
return;
static bool alreadyDispatched = false;
ASSERT(!alreadyDispatched);
if (alreadyDispatched)
return;
Vector<RefPtr<DOMWindow> > windows;
DOMWindowSet::iterator end = set.end();
for (DOMWindowSet::iterator it = set.begin(); it != end; ++it)
windows.append(it->first);
size_t size = windows.size();
for (size_t i = 0; i < size; ++i) {
DOMWindow* window = windows[i].get();
if (!set.contains(window))
continue;
window->dispatchEvent(PageTransitionEvent::create(eventNames().pagehideEvent, false), window->document());
window->dispatchEvent(Event::create(eventNames().unloadEvent, false, false), window->document());
}
enableSuddenTermination();
alreadyDispatched = true;
}
// This function:
// 1) Validates the pending changes are not changing to NaN
// 2) Constrains the window rect to no smaller than 100 in each dimension and no
// bigger than the the float rect's dimensions.
// 3) Constrain window rect to within the top and left boundaries of the screen rect
// 4) Constraint the window rect to within the bottom and right boundaries of the
// screen rect.
// 5) Translate the window rect coordinates to be within the coordinate space of
// the screen rect.
void DOMWindow::adjustWindowRect(const FloatRect& screen, FloatRect& window, const FloatRect& pendingChanges)
{
// Make sure we're in a valid state before adjusting dimensions.
ASSERT(isfinite(screen.x()));
ASSERT(isfinite(screen.y()));
ASSERT(isfinite(screen.width()));
ASSERT(isfinite(screen.height()));
ASSERT(isfinite(window.x()));
ASSERT(isfinite(window.y()));
ASSERT(isfinite(window.width()));
ASSERT(isfinite(window.height()));
// Update window values if new requested values are not NaN.
if (!isnan(pendingChanges.x()))
window.setX(pendingChanges.x());
if (!isnan(pendingChanges.y()))
window.setY(pendingChanges.y());
if (!isnan(pendingChanges.width()))
window.setWidth(pendingChanges.width());
if (!isnan(pendingChanges.height()))
window.setHeight(pendingChanges.height());
// Resize the window to between 100 and the screen width and height.
window.setWidth(min(max(100.0f, window.width()), screen.width()));
window.setHeight(min(max(100.0f, window.height()), screen.height()));
// Constrain the window position to the screen.
window.setX(max(screen.x(), min(window.x(), screen.maxX() - window.width())));
window.setY(max(screen.y(), min(window.y(), screen.maxY() - window.height())));
}
// FIXME: We can remove this function once V8 showModalDialog is changed to use DOMWindow.
void DOMWindow::parseModalDialogFeatures(const String& string, HashMap<String, String>& map)
{
WindowFeatures::parseDialogFeatures(string, map);
}
bool DOMWindow::allowPopUp(Frame* firstFrame)
{
ASSERT(firstFrame);
if (ScriptController::processingUserGesture())
return true;
Settings* settings = firstFrame->settings();
return settings && settings->javaScriptCanOpenWindowsAutomatically();
}
bool DOMWindow::allowPopUp()
{
return m_frame && allowPopUp(m_frame);
}
bool DOMWindow::canShowModalDialog(const Frame* frame)
{
if (!frame)
return false;
Page* page = frame->page();
if (!page)
return false;
return page->chrome()->canRunModal();
}
bool DOMWindow::canShowModalDialogNow(const Frame* frame)
{
if (!frame)
return false;
Page* page = frame->page();
if (!page)
return false;
return page->chrome()->canRunModalNow();
}
DOMWindow::DOMWindow(Frame* frame)
: FrameDestructionObserver(frame)
, m_shouldPrintWhenFinishedLoading(false)
, m_suspendedForPageCache(false)
{
}
DOMWindow::~DOMWindow()
{
#ifndef NDEBUG
if (!m_suspendedForPageCache) {
ASSERT(!m_screen);
ASSERT(!m_history);
ASSERT(!m_crypto);
ASSERT(!m_locationbar);
ASSERT(!m_menubar);
ASSERT(!m_personalbar);
ASSERT(!m_scrollbars);
ASSERT(!m_statusbar);
ASSERT(!m_toolbar);
ASSERT(!m_console);
ASSERT(!m_navigator);
#if ENABLE(WEB_TIMING)
ASSERT(!m_performance);
#endif
ASSERT(!m_location);
ASSERT(!m_media);
ASSERT(!m_sessionStorage);
ASSERT(!m_localStorage);
ASSERT(!m_applicationCache);
#if ENABLE(BLOB)
ASSERT(!m_domURL);
#endif
}
#endif
if (m_suspendedForPageCache)
willDestroyCachedFrame();
else
willDestroyDocumentInFrame();
// As the ASSERTs above indicate, this clear should only be necesary if this DOMWindow is suspended for the page cache.
// But we don't want to risk any of these objects hanging around after we've been destroyed.
clearDOMWindowProperties();
removeAllUnloadEventListeners(this);
removeAllBeforeUnloadEventListeners(this);
}
const AtomicString& DOMWindow::interfaceName() const
{
return eventNames().interfaceForDOMWindow;
}
ScriptExecutionContext* DOMWindow::scriptExecutionContext() const
{
return document();
}
DOMWindow* DOMWindow::toDOMWindow()
{
return this;
}
PassRefPtr<MediaQueryList> DOMWindow::matchMedia(const String& media)
{
return document() ? document()->mediaQueryMatcher()->matchMedia(media) : 0;
}
void DOMWindow::setSecurityOrigin(SecurityOrigin* securityOrigin)
{
m_securityOrigin = securityOrigin;
}
Page* DOMWindow::page()
{
return frame() ? frame()->page() : 0;
}
void DOMWindow::frameDestroyed()
{
willDestroyDocumentInFrame();
FrameDestructionObserver::frameDestroyed();
clearDOMWindowProperties();
}
void DOMWindow::willDetachPage()
{
InspectorInstrumentation::frameWindowDiscarded(m_frame, this);
}
void DOMWindow::willDestroyCachedFrame()
{
// It is necessary to copy m_properties to a separate vector because the DOMWindowProperties may
// unregister themselves from the DOMWindow as a result of the call to willDestroyGlobalObjectInCachedFrame.
Vector<DOMWindowProperty*> properties;
copyToVector(m_properties, properties);
for (size_t i = 0; i < properties.size(); ++i)
properties[i]->willDestroyGlobalObjectInCachedFrame();
}
void DOMWindow::willDestroyDocumentInFrame()
{
// It is necessary to copy m_properties to a separate vector because the DOMWindowProperties may
// unregister themselves from the DOMWindow as a result of the call to willDestroyGlobalObjectInFrame.
Vector<DOMWindowProperty*> properties;
copyToVector(m_properties, properties);
for (size_t i = 0; i < properties.size(); ++i)
properties[i]->willDestroyGlobalObjectInFrame();
}
void DOMWindow::willDetachDocumentFromFrame()
{
// It is necessary to copy m_properties to a separate vector because the DOMWindowProperties may
// unregister themselves from the DOMWindow as a result of the call to willDetachGlobalObjectFromFrame.
Vector<DOMWindowProperty*> properties;
copyToVector(m_properties, properties);
for (size_t i = 0; i < properties.size(); ++i)
properties[i]->willDetachGlobalObjectFromFrame();
}
void DOMWindow::registerProperty(DOMWindowProperty* property)
{
m_properties.add(property);
}
void DOMWindow::unregisterProperty(DOMWindowProperty* property)
{
m_properties.remove(property);
}
void DOMWindow::clear()
{
// The main frame will always try to clear its DOMWindow when a new load is committed, even if that
// DOMWindow is suspended in the page cache.
// In those cases we need to make sure we don't actually clear it.
if (m_suspendedForPageCache)
return;
willDestroyDocumentInFrame();
clearDOMWindowProperties();
}
void DOMWindow::suspendForPageCache()
{
disconnectDOMWindowProperties();
m_suspendedForPageCache = true;
}
void DOMWindow::resumeFromPageCache()
{
reconnectDOMWindowProperties();
m_suspendedForPageCache = false;
}
void DOMWindow::disconnectDOMWindowProperties()
{
// It is necessary to copy m_properties to a separate vector because the DOMWindowProperties may
// unregister themselves from the DOMWindow as a result of the call to disconnectFrameForPageCache.
Vector<DOMWindowProperty*> properties;
copyToVector(m_properties, properties);
for (size_t i = 0; i < properties.size(); ++i)
properties[i]->disconnectFrameForPageCache();
}
void DOMWindow::reconnectDOMWindowProperties()
{
ASSERT(m_suspendedForPageCache);
// It is necessary to copy m_properties to a separate vector because the DOMWindowProperties may
// unregister themselves from the DOMWindow as a result of the call to reconnectFromPageCache.
Vector<DOMWindowProperty*> properties;
copyToVector(m_properties, properties);
for (size_t i = 0; i < properties.size(); ++i)
properties[i]->reconnectFrameFromPageCache(m_frame);
}
void DOMWindow::clearDOMWindowProperties()
{
m_properties.clear();
m_screen = 0;
m_history = 0;
m_crypto = 0;
m_locationbar = 0;
m_menubar = 0;
m_personalbar = 0;
m_scrollbars = 0;
m_statusbar = 0;
m_toolbar = 0;
m_console = 0;
m_navigator = 0;
#if ENABLE(WEB_TIMING)
m_performance = 0;
#endif
m_location = 0;
m_media = 0;
m_sessionStorage = 0;
m_localStorage = 0;
m_applicationCache = 0;
#if ENABLE(BLOB)
m_domURL = 0;
#endif
}
bool DOMWindow::isCurrentlyDisplayedInFrame() const
{
return m_frame && m_frame->domWindow() == this;
}
#if ENABLE(ORIENTATION_EVENTS)
int DOMWindow::orientation() const
{
if (!m_frame)
return 0;
return m_frame->orientation();
}
#endif
Screen* DOMWindow::screen() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_screen)
m_screen = Screen::create(m_frame);
return m_screen.get();
}
History* DOMWindow::history() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_history)
m_history = History::create(m_frame);
return m_history.get();
}
Crypto* DOMWindow::crypto() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_crypto)
m_crypto = Crypto::create();
return m_crypto.get();
}
BarInfo* DOMWindow::locationbar() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_locationbar)
m_locationbar = BarInfo::create(m_frame, BarInfo::Locationbar);
return m_locationbar.get();
}
BarInfo* DOMWindow::menubar() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_menubar)
m_menubar = BarInfo::create(m_frame, BarInfo::Menubar);
return m_menubar.get();
}
BarInfo* DOMWindow::personalbar() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_personalbar)
m_personalbar = BarInfo::create(m_frame, BarInfo::Personalbar);
return m_personalbar.get();
}
BarInfo* DOMWindow::scrollbars() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_scrollbars)
m_scrollbars = BarInfo::create(m_frame, BarInfo::Scrollbars);
return m_scrollbars.get();
}
BarInfo* DOMWindow::statusbar() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_statusbar)
m_statusbar = BarInfo::create(m_frame, BarInfo::Statusbar);
return m_statusbar.get();
}
BarInfo* DOMWindow::toolbar() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_toolbar)
m_toolbar = BarInfo::create(m_frame, BarInfo::Toolbar);
return m_toolbar.get();
}
Console* DOMWindow::console() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_console)
m_console = Console::create(m_frame);
return m_console.get();
}
DOMApplicationCache* DOMWindow::applicationCache() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_applicationCache)
m_applicationCache = DOMApplicationCache::create(m_frame);
return m_applicationCache.get();
}
Navigator* DOMWindow::navigator() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_navigator)
m_navigator = Navigator::create(m_frame);
return m_navigator.get();
}
#if ENABLE(WEB_TIMING)
Performance* DOMWindow::performance() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_performance)
m_performance = Performance::create(m_frame);
return m_performance.get();
}
#endif
Location* DOMWindow::location() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_location)
m_location = Location::create(m_frame);
return m_location.get();
}
Storage* DOMWindow::sessionStorage(ExceptionCode& ec) const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (m_sessionStorage)
return m_sessionStorage.get();
Document* document = this->document();
if (!document)
return 0;
if (!document->securityOrigin()->canAccessLocalStorage()) {
ec = SECURITY_ERR;
return 0;
}
Page* page = document->page();
if (!page)
return 0;
RefPtr<StorageArea> storageArea = page->sessionStorage()->storageArea(document->securityOrigin());
InspectorInstrumentation::didUseDOMStorage(page, storageArea.get(), false, m_frame);
m_sessionStorage = Storage::create(m_frame, storageArea.release());
return m_sessionStorage.get();
}
Storage* DOMWindow::localStorage(ExceptionCode& ec) const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (m_localStorage)
return m_localStorage.get();
Document* document = this->document();
if (!document)
return 0;
if (!document->securityOrigin()->canAccessLocalStorage()) {
ec = SECURITY_ERR;
return 0;
}
Page* page = document->page();
if (!page)
return 0;
if (!page->settings()->localStorageEnabled())
return 0;
RefPtr<StorageArea> storageArea = page->group().localStorage()->storageArea(document->securityOrigin());
InspectorInstrumentation::didUseDOMStorage(page, storageArea.get(), true, m_frame);
m_localStorage = Storage::create(m_frame, storageArea.release());
return m_localStorage.get();
}
void DOMWindow::postMessage(PassRefPtr<SerializedScriptValue> message, MessagePort* port, const String& targetOrigin, DOMWindow* source, ExceptionCode& ec)
{
MessagePortArray ports;
if (port)
ports.append(port);
postMessage(message, &ports, targetOrigin, source, ec);
}
void DOMWindow::postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, const String& targetOrigin, DOMWindow* source, ExceptionCode& ec)
{
if (!isCurrentlyDisplayedInFrame())
return;
Document* sourceDocument = source->document();
// Compute the target origin. We need to do this synchronously in order
// to generate the SYNTAX_ERR exception correctly.
RefPtr<SecurityOrigin> target;
if (targetOrigin == "/") {
if (!sourceDocument)
return;
target = sourceDocument->securityOrigin();
} else if (targetOrigin != "*") {
target = SecurityOrigin::createFromString(targetOrigin);
// It doesn't make sense target a postMessage at a unique origin
// because there's no way to represent a unique origin in a string.
if (target->isUnique()) {
ec = SYNTAX_ERR;
return;
}
}
OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(ports, ec);
if (ec)
return;
// Capture the source of the message. We need to do this synchronously
// in order to capture the source of the message correctly.
if (!sourceDocument)
return;
String sourceOrigin = sourceDocument->securityOrigin()->toString();
// Capture stack trace only when inspector front-end is loaded as it may be time consuming.
RefPtr<ScriptCallStack> stackTrace;
if (InspectorInstrumentation::hasFrontends())
stackTrace = createScriptCallStack(ScriptCallStack::maxCallStackSizeToCapture, true);
// Schedule the message.
PostMessageTimer* timer = new PostMessageTimer(this, message, sourceOrigin, source, channels.release(), target.get(), stackTrace.release());
timer->startOneShot(0);
}
void DOMWindow::postMessageTimerFired(PassOwnPtr<PostMessageTimer> t)
{
OwnPtr<PostMessageTimer> timer(t);
if (!document() || !isCurrentlyDisplayedInFrame())
return;
RefPtr<MessageEvent> event = timer->event(document());
// Give the embedder a chance to intercept this postMessage because this
// DOMWindow might be a proxy for another in browsers that support
// postMessage calls across WebKit instances.
if (m_frame->loader()->client()->willCheckAndDispatchMessageEvent(timer->targetOrigin(), event.get()))
return;
dispatchMessageEventWithOriginCheck(timer->targetOrigin(), event, timer->stackTrace());
}
void DOMWindow::dispatchMessageEventWithOriginCheck(SecurityOrigin* intendedTargetOrigin, PassRefPtr<Event> event, PassRefPtr<ScriptCallStack> stackTrace)
{
if (intendedTargetOrigin) {
// Check target origin now since the target document may have changed since the timer was scheduled.
if (!intendedTargetOrigin->isSameSchemeHostPort(document()->securityOrigin())) {
String message = "Unable to post message to " + intendedTargetOrigin->toString() +
". Recipient has origin " + document()->securityOrigin()->toString() + ".\n";
console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, message, stackTrace);
return;
}
}
dispatchEvent(event);
}
DOMSelection* DOMWindow::getSelection()
{
if (!isCurrentlyDisplayedInFrame() || !m_frame)
return 0;
return m_frame->document()->getSelection();
}
Element* DOMWindow::frameElement() const
{
if (!m_frame)
return 0;
return m_frame->ownerElement();
}
void DOMWindow::focus(ScriptExecutionContext* context)
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
bool allowFocus = WindowFocusAllowedIndicator::windowFocusAllowed() || !m_frame->settings()->windowFocusRestricted();
if (context) {
ASSERT(isMainThread());
Document* activeDocument = static_cast<Document*>(context);
if (opener() && activeDocument->domWindow() == opener())
allowFocus = true;
}
// If we're a top level window, bring the window to the front.
if (m_frame == page->mainFrame() && allowFocus)
page->chrome()->focus();
if (!m_frame)
return;
m_frame->eventHandler()->focusDocumentView();
}
void DOMWindow::blur()
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
if (m_frame->settings()->windowFocusRestricted())
return;
if (m_frame != page->mainFrame())
return;
page->chrome()->unfocus();
}
void DOMWindow::close(ScriptExecutionContext* context)
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
if (m_frame != page->mainFrame())
return;
if (context) {
ASSERT(isMainThread());
Document* activeDocument = static_cast<Document*>(context);
if (!activeDocument)
return;
if (!activeDocument->canNavigate(m_frame))
return;
}
Settings* settings = m_frame->settings();
bool allowScriptsToCloseWindows = settings && settings->allowScriptsToCloseWindows();
if (!(page->openedByDOM() || page->backForward()->count() <= 1 || allowScriptsToCloseWindows))
return;
if (!m_frame->loader()->shouldClose())
return;
page->chrome()->closeWindowSoon();
}
void DOMWindow::print()
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
if (m_frame->loader()->activeDocumentLoader()->isLoading()) {
m_shouldPrintWhenFinishedLoading = true;
return;
}
m_shouldPrintWhenFinishedLoading = false;
page->chrome()->print(m_frame);
}
void DOMWindow::stop()
{
if (!m_frame)
return;
// We must check whether the load is complete asynchronously, because we might still be parsing
// the document until the callstack unwinds.
m_frame->loader()->stopForUserCancel(true);
}
void DOMWindow::alert(const String& message)
{
if (!m_frame)
return;
m_frame->document()->updateStyleIfNeeded();
Page* page = m_frame->page();
if (!page)
return;
page->chrome()->runJavaScriptAlert(m_frame, message);
}
bool DOMWindow::confirm(const String& message)
{
if (!m_frame)
return false;
m_frame->document()->updateStyleIfNeeded();
Page* page = m_frame->page();
if (!page)
return false;
return page->chrome()->runJavaScriptConfirm(m_frame, message);
}
String DOMWindow::prompt(const String& message, const String& defaultValue)
{
if (!m_frame)
return String();
m_frame->document()->updateStyleIfNeeded();
Page* page = m_frame->page();
if (!page)
return String();
String returnValue;
if (page->chrome()->runJavaScriptPrompt(m_frame, message, defaultValue, returnValue))
return returnValue;
return String();
}
String DOMWindow::btoa(const String& stringToEncode, ExceptionCode& ec)
{
if (stringToEncode.isNull())
return String();
if (!stringToEncode.containsOnlyLatin1()) {
ec = INVALID_CHARACTER_ERR;
return String();
}
return base64Encode(stringToEncode.latin1());
}
String DOMWindow::atob(const String& encodedString, ExceptionCode& ec)
{
if (encodedString.isNull())
return String();
if (!encodedString.containsOnlyLatin1()) {
ec = INVALID_CHARACTER_ERR;
return String();
}
Vector<char> out;
if (!base64Decode(encodedString, out, Base64FailOnInvalidCharacter)) {
ec = INVALID_CHARACTER_ERR;
return String();
}
return String(out.data(), out.size());
}
bool DOMWindow::find(const String& string, bool caseSensitive, bool backwards, bool wrap, bool /*wholeWord*/, bool /*searchInFrames*/, bool /*showDialog*/) const
{
if (!isCurrentlyDisplayedInFrame())
return false;
// FIXME (13016): Support wholeWord, searchInFrames and showDialog
return m_frame->editor()->findString(string, !backwards, caseSensitive, wrap, false);
}
bool DOMWindow::offscreenBuffering() const
{
return true;
}
int DOMWindow::outerHeight() const
{
if (!m_frame)
return 0;
Page* page = m_frame->page();
if (!page)
return 0;
return static_cast<int>(page->chrome()->windowRect().height());
}
int DOMWindow::outerWidth() const
{
if (!m_frame)
return 0;
Page* page = m_frame->page();
if (!page)
return 0;
return static_cast<int>(page->chrome()->windowRect().width());
}
int DOMWindow::innerHeight() const
{
if (!m_frame)
return 0;
FrameView* view = m_frame->view();
if (!view)
return 0;
// If the device height is overridden, do not include the horizontal scrollbar into the innerHeight (since it is absent on the real device).
bool includeScrollbars = !InspectorInstrumentation::shouldApplyScreenHeightOverride(m_frame);
return view->mapFromLayoutToCSSUnits(static_cast<int>(view->visibleContentRect(includeScrollbars).height()));
}
int DOMWindow::innerWidth() const
{
if (!m_frame)
return 0;
FrameView* view = m_frame->view();
if (!view)
return 0;
// If the device width is overridden, do not include the vertical scrollbar into the innerWidth (since it is absent on the real device).
bool includeScrollbars = !InspectorInstrumentation::shouldApplyScreenWidthOverride(m_frame);
return view->mapFromLayoutToCSSUnits(static_cast<int>(view->visibleContentRect(includeScrollbars).width()));
}
int DOMWindow::screenX() const
{
if (!m_frame)
return 0;
Page* page = m_frame->page();
if (!page)
return 0;
return static_cast<int>(page->chrome()->windowRect().x());
}
int DOMWindow::screenY() const
{
if (!m_frame)
return 0;
Page* page = m_frame->page();
if (!page)
return 0;
return static_cast<int>(page->chrome()->windowRect().y());
}
int DOMWindow::scrollX() const
{
if (!m_frame)
return 0;
FrameView* view = m_frame->view();
if (!view)
return 0;
m_frame->document()->updateLayoutIgnorePendingStylesheets();
return view->mapFromLayoutToCSSUnits(view->scrollX());
}
int DOMWindow::scrollY() const
{
if (!m_frame)
return 0;
FrameView* view = m_frame->view();
if (!view)
return 0;
m_frame->document()->updateLayoutIgnorePendingStylesheets();
return view->mapFromLayoutToCSSUnits(view->scrollY());
}
bool DOMWindow::closed() const
{
return !m_frame;
}
unsigned DOMWindow::length() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
return m_frame->tree()->scopedChildCount();
}
String DOMWindow::name() const
{
if (!m_frame)
return String();
return m_frame->tree()->name();
}
void DOMWindow::setName(const String& string)
{
if (!m_frame)
return;
m_frame->tree()->setName(string);
}
void DOMWindow::setStatus(const String& string)
{
m_status = string;
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
ASSERT(m_frame->document()); // Client calls shouldn't be made when the frame is in inconsistent state.
page->chrome()->setStatusbarText(m_frame, m_status);
}
void DOMWindow::setDefaultStatus(const String& string)
{
m_defaultStatus = string;
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
ASSERT(m_frame->document()); // Client calls shouldn't be made when the frame is in inconsistent state.
page->chrome()->setStatusbarText(m_frame, m_defaultStatus);
}
DOMWindow* DOMWindow::self() const
{
if (!m_frame)
return 0;
return m_frame->domWindow();
}
DOMWindow* DOMWindow::opener() const
{
if (!m_frame)
return 0;
Frame* opener = m_frame->loader()->opener();
if (!opener)
return 0;
return opener->domWindow();
}
DOMWindow* DOMWindow::parent() const
{
if (!m_frame)
return 0;
Frame* parent = m_frame->tree()->parent();
if (parent)
return parent->domWindow();
return m_frame->domWindow();
}
DOMWindow* DOMWindow::top() const
{
if (!m_frame)
return 0;
Page* page = m_frame->page();
if (!page)
return 0;
return m_frame->tree()->top()->domWindow();
}
Document* DOMWindow::document() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
// FIXME: This function shouldn't need a frame to work.
ASSERT(m_frame->document());
return m_frame->document();
}
PassRefPtr<StyleMedia> DOMWindow::styleMedia() const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
if (!m_media)
m_media = StyleMedia::create(m_frame);
return m_media.get();
}
PassRefPtr<CSSStyleDeclaration> DOMWindow::getComputedStyle(Element* elt, const String& pseudoElt) const
{
if (!elt)
return 0;
return CSSComputedStyleDeclaration::create(elt, false, pseudoElt);
}
PassRefPtr<CSSRuleList> DOMWindow::getMatchedCSSRules(Element* element, const String& pseudoElement, bool authorOnly) const
{
if (!isCurrentlyDisplayedInFrame())
return 0;
unsigned colonStart = pseudoElement[0] == ':' ? (pseudoElement[1] == ':' ? 2 : 1) : 0;
CSSSelector::PseudoType pseudoType = CSSSelector::parsePseudoType(AtomicString(pseudoElement.substring(colonStart)));
if (pseudoType == CSSSelector::PseudoUnknown && !pseudoElement.isEmpty())
return 0;
unsigned rulesToInclude = StyleResolver::AuthorCSSRules;
if (!authorOnly)
rulesToInclude |= StyleResolver::UAAndUserCSSRules;
if (Settings* settings = m_frame->settings()) {
if (settings->crossOriginCheckInGetMatchedCSSRulesDisabled())
rulesToInclude |= StyleResolver::CrossOriginCSSRules;
}
PseudoId pseudoId = CSSSelector::pseudoId(pseudoType);
return m_frame->document()->styleResolver()->pseudoStyleRulesForElement(element, pseudoId, rulesToInclude);
}
PassRefPtr<WebKitPoint> DOMWindow::webkitConvertPointFromNodeToPage(Node* node, const WebKitPoint* p) const
{
if (!node || !p)
return 0;
if (!document())
return 0;
document()->updateLayoutIgnorePendingStylesheets();
FloatPoint pagePoint(p->x(), p->y());
pagePoint = node->convertToPage(pagePoint);
return WebKitPoint::create(pagePoint.x(), pagePoint.y());
}
PassRefPtr<WebKitPoint> DOMWindow::webkitConvertPointFromPageToNode(Node* node, const WebKitPoint* p) const
{
if (!node || !p)
return 0;
if (!document())
return 0;
document()->updateLayoutIgnorePendingStylesheets();
FloatPoint nodePoint(p->x(), p->y());
nodePoint = node->convertFromPage(nodePoint);
return WebKitPoint::create(nodePoint.x(), nodePoint.y());
}
double DOMWindow::devicePixelRatio() const
{
if (!m_frame)
return 0.0;
Page* page = m_frame->page();
if (!page)
return 0.0;
return page->deviceScaleFactor();
}
void DOMWindow::scrollBy(int x, int y) const
{
if (!isCurrentlyDisplayedInFrame())
return;
document()->updateLayoutIgnorePendingStylesheets();
FrameView* view = m_frame->view();
if (!view)
return;
IntSize scaledOffset(view->mapFromCSSToLayoutUnits(x), view->mapFromCSSToLayoutUnits(y));
view->scrollBy(scaledOffset);
}
void DOMWindow::scrollTo(int x, int y) const
{
if (!isCurrentlyDisplayedInFrame())
return;
document()->updateLayoutIgnorePendingStylesheets();
RefPtr<FrameView> view = m_frame->view();
if (!view)
return;
IntPoint layoutPos(view->mapFromCSSToLayoutUnits(x), view->mapFromCSSToLayoutUnits(y));
view->setScrollPosition(layoutPos);
}
void DOMWindow::moveBy(float x, float y) const
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
if (m_frame != page->mainFrame())
return;
FloatRect fr = page->chrome()->windowRect();
FloatRect update = fr;
update.move(x, y);
// Security check (the spec talks about UniversalBrowserWrite to disable this check...)
adjustWindowRect(screenAvailableRect(page->mainFrame()->view()), fr, update);
page->chrome()->setWindowRect(fr);
}
void DOMWindow::moveTo(float x, float y) const
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
if (m_frame != page->mainFrame())
return;
FloatRect fr = page->chrome()->windowRect();
FloatRect sr = screenAvailableRect(page->mainFrame()->view());
fr.setLocation(sr.location());
FloatRect update = fr;
update.move(x, y);
// Security check (the spec talks about UniversalBrowserWrite to disable this check...)
adjustWindowRect(sr, fr, update);
page->chrome()->setWindowRect(fr);
}
void DOMWindow::resizeBy(float x, float y) const
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
if (m_frame != page->mainFrame())
return;
FloatRect fr = page->chrome()->windowRect();
FloatSize dest = fr.size() + FloatSize(x, y);
FloatRect update(fr.location(), dest);
adjustWindowRect(screenAvailableRect(page->mainFrame()->view()), fr, update);
page->chrome()->setWindowRect(fr);
}
void DOMWindow::resizeTo(float width, float height) const
{
if (!m_frame)
return;
Page* page = m_frame->page();
if (!page)
return;
if (m_frame != page->mainFrame())
return;
FloatRect fr = page->chrome()->windowRect();
FloatSize dest = FloatSize(width, height);
FloatRect update(fr.location(), dest);
adjustWindowRect(screenAvailableRect(page->mainFrame()->view()), fr, update);
page->chrome()->setWindowRect(fr);
}
int DOMWindow::setTimeout(PassOwnPtr<ScheduledAction> action, int timeout, ExceptionCode& ec)
{
ScriptExecutionContext* context = scriptExecutionContext();
if (!context) {
ec = INVALID_ACCESS_ERR;
return -1;
}
return DOMTimer::install(context, action, timeout, true);
}
void DOMWindow::clearTimeout(int timeoutId)
{
ScriptExecutionContext* context = scriptExecutionContext();
if (!context)
return;
DOMTimer::removeById(context, timeoutId);
}
int DOMWindow::setInterval(PassOwnPtr<ScheduledAction> action, int timeout, ExceptionCode& ec)
{
ScriptExecutionContext* context = scriptExecutionContext();
if (!context) {
ec = INVALID_ACCESS_ERR;
return -1;
}
return DOMTimer::install(context, action, timeout, false);
}
void DOMWindow::clearInterval(int timeoutId)
{
ScriptExecutionContext* context = scriptExecutionContext();
if (!context)
return;
DOMTimer::removeById(context, timeoutId);
}
#if ENABLE(REQUEST_ANIMATION_FRAME)
int DOMWindow::webkitRequestAnimationFrame(PassRefPtr<RequestAnimationFrameCallback> callback)
{
if (Document* d = document())
return d->webkitRequestAnimationFrame(callback);
return 0;
}
void DOMWindow::webkitCancelAnimationFrame(int id)
{
if (Document* d = document())
d->webkitCancelAnimationFrame(id);
}
#endif
static void didAddStorageEventListener(DOMWindow* window)
{
// Creating these WebCore::Storage objects informs the system that we'd like to receive
// notifications about storage events that might be triggered in other processes. Rather
// than subscribe to these notifications explicitly, we subscribe to them implicitly to
// simplify the work done by the system.
ExceptionCode unused;
window->localStorage(unused);
window->sessionStorage(unused);
}
bool DOMWindow::addEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener, bool useCapture)
{
if (!EventTarget::addEventListener(eventType, listener, useCapture))
return false;
if (Document* document = this->document()) {
document->addListenerTypeIfNeeded(eventType);
if (eventType == eventNames().mousewheelEvent)
document->didAddWheelEventHandler();
else if (eventNames().isTouchEventType(eventType))
document->didAddTouchEventHandler();
else if (eventType == eventNames().storageEvent)
didAddStorageEventListener(this);
}
if (eventType == eventNames().unloadEvent)
addUnloadEventListener(this);
else if (eventType == eventNames().beforeunloadEvent && allowsBeforeUnloadListeners(this))
addBeforeUnloadEventListener(this);
#if ENABLE(DEVICE_ORIENTATION)
else if (eventType == eventNames().devicemotionEvent) {
if (DeviceMotionController* controller = DeviceMotionController::from(page()))
controller->addListener(this);
} else if (eventType == eventNames().deviceorientationEvent) {
if (DeviceOrientationController* controller = DeviceOrientationController::from(page()))
controller->addListener(this);
}
#endif
return true;
}
bool DOMWindow::removeEventListener(const AtomicString& eventType, EventListener* listener, bool useCapture)
{
if (!EventTarget::removeEventListener(eventType, listener, useCapture))
return false;
if (Document* document = this->document()) {
if (eventType == eventNames().mousewheelEvent)
document->didRemoveWheelEventHandler();
else if (eventNames().isTouchEventType(eventType))
document->didRemoveTouchEventHandler();
}
if (eventType == eventNames().unloadEvent)
removeUnloadEventListener(this);
else if (eventType == eventNames().beforeunloadEvent && allowsBeforeUnloadListeners(this))
removeBeforeUnloadEventListener(this);
#if ENABLE(DEVICE_ORIENTATION)
else if (eventType == eventNames().devicemotionEvent) {
if (DeviceMotionController* controller = DeviceMotionController::from(page()))
controller->removeListener(this);
} else if (eventType == eventNames().deviceorientationEvent) {
if (DeviceOrientationController* controller = DeviceOrientationController::from(page()))
controller->removeListener(this);
}
#endif
return true;
}
void DOMWindow::dispatchLoadEvent()
{
RefPtr<Event> loadEvent(Event::create(eventNames().loadEvent, false, false));
if (m_frame && m_frame->loader()->documentLoader() && !m_frame->loader()->documentLoader()->timing()->loadEventStart()) {
// The DocumentLoader (and thus its DocumentLoadTiming) might get destroyed while dispatching
// the event, so protect it to prevent writing the end time into freed memory.
RefPtr<DocumentLoader> documentLoader = m_frame->loader()->documentLoader();
DocumentLoadTiming* timing = documentLoader->timing();
timing->markLoadEventStart();
dispatchEvent(loadEvent, document());
timing->markLoadEventEnd();
} else
dispatchEvent(loadEvent, document());
// For load events, send a separate load event to the enclosing frame only.
// This is a DOM extension and is independent of bubbling/capturing rules of
// the DOM.
Element* ownerElement = m_frame ? m_frame->ownerElement() : 0;
if (ownerElement)
ownerElement->dispatchEvent(Event::create(eventNames().loadEvent, false, false));
InspectorInstrumentation::loadEventFired(frame());
}
bool DOMWindow::dispatchEvent(PassRefPtr<Event> prpEvent, PassRefPtr<EventTarget> prpTarget)
{
RefPtr<EventTarget> protect = this;
RefPtr<Event> event = prpEvent;
event->setTarget(prpTarget ? prpTarget : this);
event->setCurrentTarget(this);
event->setEventPhase(Event::AT_TARGET);
InspectorInstrumentationCookie cookie = InspectorInstrumentation::willDispatchEventOnWindow(frame(), *event, this);
bool result = fireEventListeners(event.get());
InspectorInstrumentation::didDispatchEventOnWindow(cookie);
return result;
}
void DOMWindow::removeAllEventListeners()
{
EventTarget::removeAllEventListeners();
#if ENABLE(DEVICE_ORIENTATION)
if (DeviceMotionController* controller = DeviceMotionController::from(page()))
controller->removeAllListeners(this);
if (DeviceOrientationController* controller = DeviceOrientationController::from(page()))
controller->removeAllListeners(this);
#endif
removeAllUnloadEventListeners(this);
removeAllBeforeUnloadEventListeners(this);
}
void DOMWindow::captureEvents()
{
// Not implemented.
}
void DOMWindow::releaseEvents()
{
// Not implemented.
}
void DOMWindow::finishedLoading()
{
if (m_shouldPrintWhenFinishedLoading) {
m_shouldPrintWhenFinishedLoading = false;
print();
}
}
EventTargetData* DOMWindow::eventTargetData()
{
return &m_eventTargetData;
}
EventTargetData* DOMWindow::ensureEventTargetData()
{
return &m_eventTargetData;
}
void DOMWindow::setLocation(const String& urlString, DOMWindow* activeWindow, DOMWindow* firstWindow, SetLocationLocking locking)
{
if (!isCurrentlyDisplayedInFrame())
return;
Document* activeDocument = activeWindow->document();
if (!activeDocument)
return;
if (!activeDocument->canNavigate(m_frame))
return;
Frame* firstFrame = firstWindow->frame();
if (!firstFrame)
return;
KURL completedURL = firstFrame->document()->completeURL(urlString);
if (completedURL.isNull())
return;
if (isInsecureScriptAccess(activeWindow, completedURL))
return;
// We want a new history item if we are processing a user gesture.
m_frame->navigationScheduler()->scheduleLocationChange(activeDocument->securityOrigin(),
// FIXME: What if activeDocument()->frame() is 0?
completedURL, activeDocument->frame()->loader()->outgoingReferrer(),
locking != LockHistoryBasedOnGestureState || !ScriptController::processingUserGesture(),
locking != LockHistoryBasedOnGestureState);
}
void DOMWindow::printErrorMessage(const String& message)
{
if (message.isEmpty())
return;
Settings* settings = m_frame->settings();
if (!settings)
return;
if (settings->privateBrowsingEnabled())
return;
// FIXME: Add arguments so that we can provide a correct source URL and line number.
RefPtr<ScriptCallStack> stackTrace = createScriptCallStack(ScriptCallStack::maxCallStackSizeToCapture, true);
console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, message, stackTrace.release());
}
String DOMWindow::crossDomainAccessErrorMessage(DOMWindow* activeWindow)
{
const KURL& activeWindowURL = activeWindow->url();
if (activeWindowURL.isNull())
return String();
// FIXME: This error message should contain more specifics of why the same origin check has failed.
// Perhaps we should involve the security origin object in composing it.
// FIXME: This message, and other console messages, have extra newlines. Should remove them.
return "Unsafe JavaScript attempt to access frame with URL " + m_url.string() + " from frame with URL " + activeWindowURL.string() + ". Domains, protocols and ports must match.\n";
}
bool DOMWindow::isInsecureScriptAccess(DOMWindow* activeWindow, const String& urlString)
{
if (!protocolIsJavaScript(urlString))
return false;
// If this DOMWindow isn't currently active in the Frame, then there's no
// way we should allow the access.
// FIXME: Remove this check if we're able to disconnect DOMWindow from
// Frame on navigation: https://bugs.webkit.org/show_bug.cgi?id=62054
if (isCurrentlyDisplayedInFrame()) {
// FIXME: Is there some way to eliminate the need for a separate "activeWindow == this" check?
if (activeWindow == this)
return false;
// FIXME: The name canAccess seems to be a roundabout way to ask "can execute script".
// Can we name the SecurityOrigin function better to make this more clear?
if (activeWindow->securityOrigin()->canAccess(securityOrigin()))
return false;
}
printErrorMessage(crossDomainAccessErrorMessage(activeWindow));
return true;
}
Frame* DOMWindow::createWindow(const String& urlString, const AtomicString& frameName, const WindowFeatures& windowFeatures,
DOMWindow* activeWindow, Frame* firstFrame, Frame* openerFrame, PrepareDialogFunction function, void* functionContext)
{
Frame* activeFrame = activeWindow->frame();
// For whatever reason, Firefox uses the first frame to determine the outgoingReferrer. We replicate that behavior here.
String referrer = firstFrame->loader()->outgoingReferrer();
KURL completedURL = urlString.isEmpty() ? KURL(ParsedURLString, emptyString()) : firstFrame->document()->completeURL(urlString);
if (!completedURL.isEmpty() && !completedURL.isValid()) {
// Don't expose client code to invalid URLs.
activeWindow->printErrorMessage("Unable to open a window with invalid URL '" + completedURL.string() + "'.\n");
return 0;
}
ResourceRequest request(completedURL, referrer);
FrameLoader::addHTTPOriginIfNeeded(request, firstFrame->loader()->outgoingOrigin());
FrameLoadRequest frameRequest(activeWindow->securityOrigin(), request, frameName);
// We pass the opener frame for the lookupFrame in case the active frame is different from
// the opener frame, and the name references a frame relative to the opener frame.
bool created;
Frame* newFrame = WebCore::createWindow(activeFrame, openerFrame, frameRequest, windowFeatures, created);
if (!newFrame)
return 0;
newFrame->loader()->setOpener(openerFrame);
newFrame->page()->setOpenedByDOM();
if (newFrame->domWindow()->isInsecureScriptAccess(activeWindow, completedURL))
return newFrame;
if (function)
function(newFrame->domWindow(), functionContext);
if (created)
newFrame->loader()->changeLocation(activeWindow->securityOrigin(), completedURL, referrer, false, false);
else if (!urlString.isEmpty()) {
bool lockHistory = !ScriptController::processingUserGesture();
newFrame->navigationScheduler()->scheduleLocationChange(activeWindow->securityOrigin(), completedURL.string(), referrer, lockHistory, false);
}
return newFrame;
}
PassRefPtr<DOMWindow> DOMWindow::open(const String& urlString, const AtomicString& frameName, const String& windowFeaturesString,
DOMWindow* activeWindow, DOMWindow* firstWindow)
{
if (!isCurrentlyDisplayedInFrame())
return 0;
Document* activeDocument = activeWindow->document();
if (!activeDocument)
return 0;
Frame* firstFrame = firstWindow->frame();
if (!firstFrame)
return 0;
if (!firstWindow->allowPopUp()) {
// Because FrameTree::find() returns true for empty strings, we must check for empty frame names.
// Otherwise, illegitimate window.open() calls with no name will pass right through the popup blocker.
if (frameName.isEmpty() || !m_frame->tree()->find(frameName))
return 0;
}
// Get the target frame for the special cases of _top and _parent.
// In those cases, we schedule a location change right now and return early.
Frame* targetFrame = 0;
if (frameName == "_top")
targetFrame = m_frame->tree()->top();
else if (frameName == "_parent") {
if (Frame* parent = m_frame->tree()->parent())
targetFrame = parent;
else
targetFrame = m_frame;
}
if (targetFrame) {
if (!activeDocument->canNavigate(targetFrame))
return 0;
KURL completedURL = firstFrame->document()->completeURL(urlString);
if (targetFrame->domWindow()->isInsecureScriptAccess(activeWindow, completedURL))
return targetFrame->domWindow();
if (urlString.isEmpty())
return targetFrame->domWindow();
// For whatever reason, Firefox uses the first window rather than the active window to
// determine the outgoing referrer. We replicate that behavior here.
bool lockHistory = !ScriptController::processingUserGesture();
targetFrame->navigationScheduler()->scheduleLocationChange(
activeDocument->securityOrigin(),
completedURL,
firstFrame->loader()->outgoingReferrer(),
lockHistory,
false);
return targetFrame->domWindow();
}
WindowFeatures windowFeatures(windowFeaturesString);
FloatRect windowRect(windowFeatures.xSet ? windowFeatures.x : 0, windowFeatures.ySet ? windowFeatures.y : 0,
windowFeatures.widthSet ? windowFeatures.width : 0, windowFeatures.heightSet ? windowFeatures.height : 0);
Page* page = m_frame->page();
DOMWindow::adjustWindowRect(screenAvailableRect(page ? page->mainFrame()->view() : 0), windowRect, windowRect);
windowFeatures.x = windowRect.x();
windowFeatures.y = windowRect.y();
windowFeatures.height = windowRect.height();
windowFeatures.width = windowRect.width();
Frame* result = createWindow(urlString, frameName, windowFeatures, activeWindow, firstFrame, m_frame);
return result ? result->domWindow() : 0;
}
void DOMWindow::showModalDialog(const String& urlString, const String& dialogFeaturesString,
DOMWindow* activeWindow, DOMWindow* firstWindow, PrepareDialogFunction function, void* functionContext)
{
if (!isCurrentlyDisplayedInFrame())
return;
Frame* activeFrame = activeWindow->frame();
if (!activeFrame)
return;
Frame* firstFrame = firstWindow->frame();
if (!firstFrame)
return;
if (!canShowModalDialogNow(m_frame) || !firstWindow->allowPopUp())
return;
Frame* dialogFrame = createWindow(urlString, emptyAtom, WindowFeatures(dialogFeaturesString, screenAvailableRect(m_frame->view())),
activeWindow, firstFrame, m_frame, function, functionContext);
if (!dialogFrame)
return;
dialogFrame->page()->chrome()->runModal();
}
} // namespace WebCore
Jump to Line
Something went wrong with that request. Please try again.