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/*
* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All
* Rights Reserved.
* Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
* (http://www.torchmobile.com/)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "core/page/Page.h"
#include "bindings/core/v8/ScriptController.h"
#include "core/css/resolver/ViewportStyleResolver.h"
#include "core/dom/ClientRectList.h"
#include "core/dom/StyleChangeReason.h"
#include "core/dom/StyleEngine.h"
#include "core/dom/VisitedLinkState.h"
#include "core/editing/DragCaretController.h"
#include "core/editing/markers/DocumentMarkerController.h"
#include "core/events/Event.h"
#include "core/fetch/ResourceFetcher.h"
#include "core/frame/DOMTimer.h"
#include "core/frame/FrameConsole.h"
#include "core/frame/FrameHost.h"
#include "core/frame/FrameView.h"
#include "core/frame/RemoteFrame.h"
#include "core/frame/RemoteFrameView.h"
#include "core/frame/Settings.h"
#include "core/frame/VisualViewport.h"
#include "core/html/HTMLMediaElement.h"
#include "core/inspector/ConsoleMessageStorage.h"
#include "core/inspector/InspectorInstrumentation.h"
#include "core/layout/TextAutosizer.h"
#include "core/page/AutoscrollController.h"
#include "core/page/ChromeClient.h"
#include "core/page/ContextMenuController.h"
#include "core/page/DragController.h"
#include "core/page/FocusController.h"
#include "core/page/PointerLockController.h"
#include "core/page/ScopedPageSuspender.h"
#include "core/page/ValidationMessageClient.h"
#include "core/page/scrolling/ScrollingCoordinator.h"
#include "core/paint/PaintLayer.h"
#include "platform/WebFrameScheduler.h"
#include "platform/graphics/GraphicsLayer.h"
#include "platform/plugins/PluginData.h"
#include "public/platform/Platform.h"
namespace blink {
// Set of all live pages; includes internal Page objects that are
// not observable from scripts.
static Page::PageSet& allPages() {
DEFINE_STATIC_LOCAL(Page::PageSet, pages, ());
return pages;
}
Page::PageSet& Page::ordinaryPages() {
DEFINE_STATIC_LOCAL(Page::PageSet, pages, ());
return pages;
}
void Page::networkStateChanged(bool online) {
HeapVector<Member<LocalFrame>> frames;
// Get all the frames of all the pages in all the page groups
for (Page* page : allPages()) {
for (Frame* frame = page->mainFrame(); frame;
frame = frame->tree().traverseNext()) {
// FIXME: There is currently no way to dispatch events to out-of-process
// frames.
if (frame->isLocalFrame())
frames.push_back(toLocalFrame(frame));
}
}
AtomicString eventName =
online ? EventTypeNames::online : EventTypeNames::offline;
for (const auto& frame : frames) {
frame->domWindow()->dispatchEvent(Event::create(eventName));
InspectorInstrumentation::networkStateChanged(frame.get(), online);
}
}
float deviceScaleFactor(LocalFrame* frame) {
if (!frame)
return 1;
Page* page = frame->page();
if (!page)
return 1;
return page->deviceScaleFactor();
}
Page* Page::createOrdinary(PageClients& pageClients) {
Page* page = create(pageClients);
ordinaryPages().add(page);
if (ScopedPageSuspender::isActive())
page->setSuspended(true);
return page;
}
Page::Page(PageClients& pageClients)
: SettingsDelegate(Settings::create()),
m_animator(PageAnimator::create(*this)),
m_autoscrollController(AutoscrollController::create(*this)),
m_chromeClient(pageClients.chromeClient),
m_dragCaretController(DragCaretController::create()),
m_dragController(DragController::create(this)),
m_focusController(FocusController::create(this)),
m_contextMenuController(
ContextMenuController::create(this, pageClients.contextMenuClient)),
m_pointerLockController(PointerLockController::create(this)),
m_mainFrame(nullptr),
m_editorClient(pageClients.editorClient),
m_spellCheckerClient(pageClients.spellCheckerClient),
m_useCounter(pageClients.chromeClient &&
pageClients.chromeClient->isSVGImageChromeClient()
? UseCounter::SVGImageContext
: UseCounter::DefaultContext),
m_openedByDOM(false),
m_tabKeyCyclesThroughElements(true),
m_suspended(false),
m_deviceScaleFactor(1),
m_visibilityState(PageVisibilityStateVisible),
m_isCursorVisible(true),
m_frameHost(FrameHost::create(*this)) {
ASSERT(m_editorClient);
ASSERT(!allPages().contains(this));
allPages().add(this);
}
Page::~Page() {
// willBeDestroyed() must be called before Page destruction.
ASSERT(!m_mainFrame);
}
void Page::closeSoon() {
// Make sure this Page can no longer be found by JS.
m_isClosing = true;
// TODO(dcheng): Try to remove this in a followup, it's not obviously needed.
if (m_mainFrame->isLocalFrame())
toLocalFrame(m_mainFrame)->loader().stopAllLoaders();
chromeClient().closeWindowSoon();
}
ViewportDescription Page::viewportDescription() const {
return mainFrame() && mainFrame()->isLocalFrame() &&
deprecatedLocalMainFrame()->document()
? deprecatedLocalMainFrame()->document()->viewportDescription()
: ViewportDescription();
}
ScrollingCoordinator* Page::scrollingCoordinator() {
if (!m_scrollingCoordinator && m_settings->getAcceleratedCompositingEnabled())
m_scrollingCoordinator = ScrollingCoordinator::create(this);
return m_scrollingCoordinator.get();
}
ClientRectList* Page::nonFastScrollableRects(const LocalFrame* frame) {
if (ScrollingCoordinator* scrollingCoordinator =
this->scrollingCoordinator()) {
// Hits in compositing/iframes/iframe-composited-scrolling.html
DisableCompositingQueryAsserts disabler;
scrollingCoordinator->updateAfterCompositingChangeIfNeeded();
}
if (!frame->view()->layerForScrolling())
return ClientRectList::create();
// Now retain non-fast scrollable regions
return ClientRectList::create(frame->view()
->layerForScrolling()
->platformLayer()
->nonFastScrollableRegion());
}
void Page::setMainFrame(Frame* mainFrame) {
// Should only be called during initialization or swaps between local and
// remote frames.
// FIXME: Unfortunately we can't assert on this at the moment, because this
// is called in the base constructor for both LocalFrame and RemoteFrame,
// when the vtables for the derived classes have not yet been setup.
m_mainFrame = mainFrame;
}
void Page::documentDetached(Document* document) {
m_pointerLockController->documentDetached(document);
m_contextMenuController->documentDetached(document);
if (m_validationMessageClient)
m_validationMessageClient->documentDetached(*document);
m_hostsUsingFeatures.documentDetached(*document);
}
bool Page::openedByDOM() const {
return m_openedByDOM;
}
void Page::setOpenedByDOM() {
m_openedByDOM = true;
}
void Page::platformColorsChanged() {
for (const Page* page : allPages())
for (Frame* frame = page->mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)->document()->platformColorsChanged();
}
}
void Page::setNeedsRecalcStyleInAllFrames() {
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)->document()->setNeedsStyleRecalc(
SubtreeStyleChange,
StyleChangeReasonForTracing::create(StyleChangeReason::Settings));
}
}
void Page::refreshPlugins() {
PluginData::refreshBrowserSidePluginCache();
for (const Page* page : allPages()) {
// Clear out the page's plugin data.
if (page->m_pluginData)
page->m_pluginData = nullptr;
}
}
PluginData* Page::pluginData(SecurityOrigin* mainFrameOrigin) const {
if (!m_pluginData ||
!mainFrameOrigin->isSameSchemeHostPort(m_pluginData->origin()))
m_pluginData = PluginData::create(mainFrameOrigin);
return m_pluginData.get();
}
void Page::setValidationMessageClient(ValidationMessageClient* client) {
m_validationMessageClient = client;
}
void Page::setSuspended(bool suspended) {
if (suspended == m_suspended)
return;
m_suspended = suspended;
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (!frame->isLocalFrame())
continue;
LocalFrame* localFrame = toLocalFrame(frame);
localFrame->loader().setDefersLoading(suspended);
localFrame->frameScheduler()->setSuspended(suspended);
}
}
void Page::setPageScaleFactor(float scale) {
frameHost().visualViewport().setScale(scale);
}
float Page::pageScaleFactor() const {
return frameHost().visualViewport().scale();
}
void Page::setDeviceScaleFactor(float scaleFactor) {
if (m_deviceScaleFactor == scaleFactor)
return;
m_deviceScaleFactor = scaleFactor;
if (mainFrame() && mainFrame()->isLocalFrame())
deprecatedLocalMainFrame()->deviceScaleFactorChanged();
}
void Page::allVisitedStateChanged(bool invalidateVisitedLinkHashes) {
for (const Page* page : ordinaryPages()) {
for (Frame* frame = page->m_mainFrame; frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)
->document()
->visitedLinkState()
.invalidateStyleForAllLinks(invalidateVisitedLinkHashes);
}
}
}
void Page::visitedStateChanged(LinkHash linkHash) {
for (const Page* page : ordinaryPages()) {
for (Frame* frame = page->m_mainFrame; frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)
->document()
->visitedLinkState()
.invalidateStyleForLink(linkHash);
}
}
}
void Page::setVisibilityState(PageVisibilityState visibilityState,
bool isInitialState) {
if (m_visibilityState == visibilityState)
return;
m_visibilityState = visibilityState;
if (!isInitialState)
notifyPageVisibilityChanged();
if (!isInitialState && m_mainFrame)
m_mainFrame->didChangeVisibilityState();
}
PageVisibilityState Page::visibilityState() const {
return m_visibilityState;
}
bool Page::isPageVisible() const {
return visibilityState() == PageVisibilityStateVisible;
}
bool Page::isCursorVisible() const {
return m_isCursorVisible;
}
void Page::settingsChanged(SettingsDelegate::ChangeType changeType) {
switch (changeType) {
case SettingsDelegate::StyleChange:
setNeedsRecalcStyleInAllFrames();
break;
case SettingsDelegate::ViewportDescriptionChange:
if (mainFrame() && mainFrame()->isLocalFrame()) {
deprecatedLocalMainFrame()->document()->updateViewportDescription();
// The text autosizer has dependencies on the viewport.
if (TextAutosizer* textAutosizer =
deprecatedLocalMainFrame()->document()->textAutosizer())
textAutosizer->updatePageInfoInAllFrames();
}
break;
case SettingsDelegate::DNSPrefetchingChange:
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)->document()->initDNSPrefetch();
}
break;
case SettingsDelegate::ImageLoadingChange:
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame()) {
toLocalFrame(frame)->document()->fetcher()->setImagesEnabled(
settings().getImagesEnabled());
toLocalFrame(frame)->document()->fetcher()->setAutoLoadImages(
settings().getLoadsImagesAutomatically());
}
}
break;
case SettingsDelegate::TextAutosizingChange:
if (!mainFrame() || !mainFrame()->isLocalFrame())
break;
if (TextAutosizer* textAutosizer =
deprecatedLocalMainFrame()->document()->textAutosizer())
textAutosizer->updatePageInfoInAllFrames();
break;
case SettingsDelegate::FontFamilyChange:
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)
->document()
->styleEngine()
.updateGenericFontFamilySettings();
}
break;
case SettingsDelegate::AcceleratedCompositingChange:
updateAcceleratedCompositingSettings();
break;
case SettingsDelegate::MediaQueryChange:
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)->document()->mediaQueryAffectingValueChanged();
}
break;
case SettingsDelegate::AccessibilityStateChange:
if (!mainFrame() || !mainFrame()->isLocalFrame())
break;
deprecatedLocalMainFrame()
->document()
->axObjectCacheOwner()
.clearAXObjectCache();
break;
case SettingsDelegate::ViewportRuleChange: {
if (!mainFrame() || !mainFrame()->isLocalFrame())
break;
if (Document* doc = toLocalFrame(mainFrame())->document())
doc->styleEngine().viewportRulesChanged();
} break;
case SettingsDelegate::TextTrackKindUserPreferenceChange:
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame()) {
Document* doc = toLocalFrame(frame)->document();
if (doc)
HTMLMediaElement::setTextTrackKindUserPreferenceForAllMediaElements(
doc);
}
}
break;
case SettingsDelegate::DOMWorldsChange: {
if (!settings().getForceMainWorldInitialization())
break;
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (!frame->isLocalFrame())
continue;
LocalFrame* localFrame = toLocalFrame(frame);
if (localFrame->loader()
.stateMachine()
->committedFirstRealDocumentLoad()) {
// Forcibly instantiate WindowProxy.
localFrame->script().windowProxy(DOMWrapperWorld::mainWorld());
}
}
} break;
}
}
void Page::updateAcceleratedCompositingSettings() {
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (!frame->isLocalFrame())
continue;
if (FrameView* view = toLocalFrame(frame)->view())
view->updateAcceleratedCompositingSettings();
}
}
void Page::didCommitLoad(LocalFrame* frame) {
if (m_mainFrame == frame) {
KURL url;
if (frame->document())
url = frame->document()->url();
// TODO(rbyers): Most of this doesn't appear to take into account that each
// SVGImage gets it's own Page instance.
frameHost().consoleMessageStorage().clear();
useCounter().didCommitLoad(url);
deprecation().clearSuppression();
frameHost().visualViewport().sendUMAMetrics();
// Need to reset visual viewport position here since before commit load we
// would update the previous history item, Page::didCommitLoad is called
// after a new history item is created in FrameLoader.
// See crbug.com/642279
frameHost().visualViewport().setScrollOffset(ScrollOffset(),
ProgrammaticScroll);
m_hostsUsingFeatures.updateMeasurementsAndClear();
}
}
void Page::acceptLanguagesChanged() {
HeapVector<Member<LocalFrame>> frames;
// Even though we don't fire an event from here, the LocalDOMWindow's will
// fire an event so we keep the frames alive until we are done.
for (Frame* frame = mainFrame(); frame;
frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
frames.push_back(toLocalFrame(frame));
}
for (unsigned i = 0; i < frames.size(); ++i)
frames[i]->domWindow()->acceptLanguagesChanged();
}
DEFINE_TRACE(Page) {
visitor->trace(m_animator);
visitor->trace(m_autoscrollController);
visitor->trace(m_chromeClient);
visitor->trace(m_dragCaretController);
visitor->trace(m_dragController);
visitor->trace(m_focusController);
visitor->trace(m_contextMenuController);
visitor->trace(m_pointerLockController);
visitor->trace(m_scrollingCoordinator);
visitor->trace(m_mainFrame);
visitor->trace(m_validationMessageClient);
visitor->trace(m_frameHost);
Supplementable<Page>::trace(visitor);
PageVisibilityNotifier::trace(visitor);
}
void Page::layerTreeViewInitialized(WebLayerTreeView& layerTreeView,
FrameView* view) {
if (scrollingCoordinator())
scrollingCoordinator()->layerTreeViewInitialized(layerTreeView, view);
}
void Page::willCloseLayerTreeView(WebLayerTreeView& layerTreeView,
FrameView* view) {
if (m_scrollingCoordinator)
m_scrollingCoordinator->willCloseLayerTreeView(layerTreeView, view);
}
void Page::willBeDestroyed() {
Frame* mainFrame = m_mainFrame;
mainFrame->detach(FrameDetachType::Remove);
ASSERT(allPages().contains(this));
allPages().remove(this);
ordinaryPages().remove(this);
if (m_scrollingCoordinator)
m_scrollingCoordinator->willBeDestroyed();
chromeClient().chromeDestroyed();
if (m_validationMessageClient)
m_validationMessageClient->willBeDestroyed();
m_mainFrame = nullptr;
PageVisibilityNotifier::notifyContextDestroyed();
}
Page::PageClients::PageClients()
: chromeClient(nullptr),
contextMenuClient(nullptr),
editorClient(nullptr),
spellCheckerClient(nullptr) {}
Page::PageClients::~PageClients() {}
template class CORE_TEMPLATE_EXPORT Supplement<Page>;
} // namespace blink
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