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chromium / chromium / src / 00b5593b50a10f363c9128f25f0499e1ce1f3bf1 / . / third_party / WebKit / Source / core / frame / LocalFrame.cpp
blob: ca2c87c7c0f8beb82e2284acaccdd00f08b266dc [file] [log] [blame]
/*
* Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
* 1999 Lars Knoll <knoll@kde.org>
* 1999 Antti Koivisto <koivisto@kde.org>
* 2000 Simon Hausmann <hausmann@kde.org>
* 2000 Stefan Schimanski <1Stein@gmx.de>
* 2001 George Staikos <staikos@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
* rights reserved.
* Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
* Copyright (C) 2008 Google Inc.
*
* 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/frame/LocalFrame.h"
#include <memory>
#include "bindings/core/v8/ScriptController.h"
#include "core/CoreInitializer.h"
#include "core/CoreProbeSink.h"
#include "core/css/StyleChangeReason.h"
#include "core/dom/ChildFrameDisconnector.h"
#include "core/dom/DocumentParser.h"
#include "core/dom/DocumentType.h"
#include "core/dom/events/Event.h"
#include "core/editing/EditingUtilities.h"
#include "core/editing/Editor.h"
#include "core/editing/FrameSelection.h"
#include "core/editing/ime/InputMethodController.h"
#include "core/editing/serializers/Serialization.h"
#include "core/editing/spellcheck/SpellChecker.h"
#include "core/editing/suggestion/TextSuggestionController.h"
#include "core/exported/WebPluginContainerImpl.h"
#include "core/frame/ContentSettingsClient.h"
#include "core/frame/EventHandlerRegistry.h"
#include "core/frame/FrameConsole.h"
#include "core/frame/LocalDOMWindow.h"
#include "core/frame/LocalFrameClient.h"
#include "core/frame/LocalFrameView.h"
#include "core/frame/PerformanceMonitor.h"
#include "core/frame/Settings.h"
#include "core/frame/WebLocalFrameImpl.h"
#include "core/html/HTMLFrameElementBase.h"
#include "core/html/HTMLPlugInElement.h"
#include "core/html/PluginDocument.h"
#include "core/input/EventHandler.h"
#include "core/inspector/ConsoleMessage.h"
#include "core/inspector/InspectorTaskRunner.h"
#include "core/inspector/InspectorTraceEvents.h"
#include "core/layout/HitTestResult.h"
#include "core/layout/LayoutEmbeddedContent.h"
#include "core/layout/LayoutView.h"
#include "core/layout/TextAutosizer.h"
#include "core/loader/DocumentLoader.h"
#include "core/loader/FrameLoadRequest.h"
#include "core/loader/IdlenessDetector.h"
#include "core/loader/NavigationScheduler.h"
#include "core/page/DragController.h"
#include "core/page/FocusController.h"
#include "core/page/scrolling/ScrollingCoordinator.h"
#include "core/paint/ObjectPainter.h"
#include "core/paint/TransformRecorder.h"
#include "core/paint/compositing/PaintLayerCompositor.h"
#include "core/probe/CoreProbes.h"
#include "core/svg/SVGDocumentExtensions.h"
#include "platform/Histogram.h"
#include "platform/WebFrameScheduler.h"
#include "platform/bindings/ScriptForbiddenScope.h"
#include "platform/graphics/paint/ClipRecorder.h"
#include "platform/graphics/paint/PaintCanvas.h"
#include "platform/graphics/paint/PaintController.h"
#include "platform/graphics/paint/TransformDisplayItem.h"
#include "platform/instrumentation/resource_coordinator/BlinkResourceCoordinatorBase.h"
#include "platform/instrumentation/resource_coordinator/FrameResourceCoordinator.h"
#include "platform/json/JSONValues.h"
#include "platform/loader/fetch/FetchParameters.h"
#include "platform/loader/fetch/ResourceFetcher.h"
#include "platform/loader/fetch/ResourceRequest.h"
#include "platform/plugins/PluginData.h"
#include "platform/plugins/PluginScriptForbiddenScope.h"
#include "platform/runtime_enabled_features.h"
#include "platform/scheduler/renderer/web_view_scheduler.h"
#include "platform/text/TextStream.h"
#include "platform/wtf/PtrUtil.h"
#include "platform/wtf/StdLibExtras.h"
#include "public/platform/InterfaceProvider.h"
#include "public/platform/InterfaceRegistry.h"
#include "public/platform/WebURLRequest.h"
#include "services/network/public/cpp/features.h"
#include "services/service_manager/public/cpp/interface_provider.h"
namespace blink {
using namespace HTMLNames;
namespace {
inline float ParentPageZoomFactor(LocalFrame* frame) {
Frame* parent = frame->Tree().Parent();
if (!parent || !parent->IsLocalFrame())
return 1;
return ToLocalFrame(parent)->PageZoomFactor();
}
inline float ParentTextZoomFactor(LocalFrame* frame) {
Frame* parent = frame->Tree().Parent();
if (!parent || !parent->IsLocalFrame())
return 1;
return ToLocalFrame(parent)->TextZoomFactor();
}
bool ShouldUseClientLoFiForRequest(
const ResourceRequest& request,
WebURLRequest::PreviewsState frame_previews_state) {
if (request.GetPreviewsState() != WebURLRequest::kPreviewsUnspecified)
return request.GetPreviewsState() & WebURLRequest::kClientLoFiOn;
if (!(frame_previews_state & WebURLRequest::kClientLoFiOn))
return false;
// Even if this frame is using Server Lo-Fi, https:// images won't be
// handled by Server Lo-Fi since their requests won't be sent to the Data
// Saver proxy, so use Client Lo-Fi instead.
if (frame_previews_state & WebURLRequest::kServerLoFiOn)
return request.Url().ProtocolIs("https");
return true;
}
} // namespace
template class CORE_TEMPLATE_EXPORT Supplement<LocalFrame>;
// static
LocalFrame* LocalFrame::Create(LocalFrameClient* client,
Page& page,
FrameOwner* owner,
InterfaceRegistry* interface_registry) {
LocalFrame* frame = new LocalFrame(
client, page, owner,
interface_registry ? interface_registry
: InterfaceRegistry::GetEmptyInterfaceRegistry());
probe::frameAttachedToParent(frame);
return frame;
}
void LocalFrame::Init() {
CoreInitializer::GetInstance().InitLocalFrame(*this);
loader_.Init();
}
void LocalFrame::SetView(LocalFrameView* view) {
DCHECK(!view_ || view_ != view);
DCHECK(!GetDocument() || !GetDocument()->IsActive());
if (view_)
view_->WillBeRemovedFromFrame();
view_ = view;
}
void LocalFrame::CreateView(const IntSize& viewport_size,
const Color& background_color) {
DCHECK(this);
DCHECK(GetPage());
bool is_local_root = this->IsLocalRoot();
if (is_local_root && View())
View()->SetParentVisible(false);
SetView(nullptr);
LocalFrameView* frame_view = nullptr;
if (is_local_root) {
frame_view = LocalFrameView::Create(*this, viewport_size);
// The layout size is set by WebViewImpl to support @viewport
frame_view->SetLayoutSizeFixedToFrameSize(false);
} else {
frame_view = LocalFrameView::Create(*this);
}
SetView(frame_view);
frame_view->UpdateBaseBackgroundColorRecursively(background_color);
if (is_local_root)
frame_view->SetParentVisible(true);
// FIXME: Not clear what the right thing for OOPI is here.
if (OwnerLayoutObject()) {
HTMLFrameOwnerElement* owner = DeprecatedLocalOwner();
DCHECK(owner);
// FIXME: OOPI might lead to us temporarily lying to a frame and telling it
// that it's owned by a FrameOwner that knows nothing about it. If we're
// lying to this frame, don't let it clobber the existing
// EmbeddedContentView.
if (owner->ContentFrame() == this)
owner->SetEmbeddedContentView(frame_view);
}
if (Owner())
View()->SetCanHaveScrollbars(Owner()->ScrollingMode() !=
kScrollbarAlwaysOff);
}
LocalFrame::~LocalFrame() {
// Verify that the LocalFrameView has been cleared as part of detaching
// the frame owner.
DCHECK(!view_);
}
void LocalFrame::Trace(blink::Visitor* visitor) {
visitor->Trace(probe_sink_);
visitor->Trace(performance_monitor_);
visitor->Trace(idleness_detector_);
visitor->Trace(inspector_trace_events_);
visitor->Trace(loader_);
visitor->Trace(navigation_scheduler_);
visitor->Trace(view_);
visitor->Trace(dom_window_);
visitor->Trace(page_popup_owner_);
visitor->Trace(script_controller_);
visitor->Trace(editor_);
visitor->Trace(spell_checker_);
visitor->Trace(selection_);
visitor->Trace(event_handler_);
visitor->Trace(console_);
visitor->Trace(input_method_controller_);
visitor->Trace(text_suggestion_controller_);
visitor->Trace(computed_node_mapping_);
Frame::Trace(visitor);
Supplementable<LocalFrame>::Trace(visitor);
}
void LocalFrame::Navigate(Document& origin_document,
const KURL& url,
bool replace_current_item,
UserGestureStatus user_gesture_status) {
navigation_scheduler_->ScheduleFrameNavigation(&origin_document, url,
replace_current_item);
}
void LocalFrame::Navigate(const FrameLoadRequest& request) {
loader_.Load(request);
}
void LocalFrame::Reload(FrameLoadType load_type,
ClientRedirectPolicy client_redirect_policy) {
DCHECK(IsReloadLoadType(load_type));
if (client_redirect_policy == ClientRedirectPolicy::kNotClientRedirect) {
if (!loader_.GetDocumentLoader()->GetHistoryItem())
return;
FrameLoadRequest request = FrameLoadRequest(
nullptr, loader_.ResourceRequestForReload(load_type, NullURL(),
client_redirect_policy));
request.SetClientRedirect(client_redirect_policy);
loader_.Load(request, load_type);
} else {
DCHECK_EQ(kFrameLoadTypeReload, load_type);
navigation_scheduler_->ScheduleReload();
}
}
void LocalFrame::Detach(FrameDetachType type) {
// Note that detach() can be re-entered, so it's not possible to
// DCHECK(isAttached()) here.
lifecycle_.AdvanceTo(FrameLifecycle::kDetaching);
if (IsLocalRoot())
performance_monitor_->Shutdown();
idleness_detector_->Shutdown();
if (inspector_trace_events_)
probe_sink_->removeInspectorTraceEvents(inspector_trace_events_);
inspector_task_runner_->Dispose();
PluginScriptForbiddenScope forbid_plugin_destructor_scripting;
loader_.StopAllLoaders();
// Don't allow any new child frames to load in this frame: attaching a new
// child frame during or after detaching children results in an attached
// frame on a detached DOM tree, which is bad.
SubframeLoadingDisabler disabler(*GetDocument());
loader_.DispatchUnloadEvent();
DetachChildren();
// All done if detaching the subframes brought about a detach of this frame
// also.
if (!Client())
return;
// stopAllLoaders() needs to be called after detachChildren(), because
// detachChildren() will trigger the unload event handlers of any child
// frames, and those event handlers might start a new subresource load in this
// frame.
loader_.StopAllLoaders();
loader_.Detach();
GetDocument()->Shutdown();
// TODO(crbug.com/729196): Trace why LocalFrameView::DetachFromLayout crashes.
// It seems to crash because Frame is detached before LocalFrameView.
// Verify here that any LocalFrameView has been detached by now.
if (view_ && view_->IsAttached()) {
CHECK(DeprecatedLocalOwner());
CHECK(DeprecatedLocalOwner()->OwnedEmbeddedContentView());
CHECK_EQ(view_, DeprecatedLocalOwner()->OwnedEmbeddedContentView());
}
CHECK(!view_ || !view_->IsAttached());
// This is the earliest that scripting can be disabled:
// - FrameLoader::Detach() can fire XHR abort events
// - Document::Shutdown() can dispose plugins which can run script.
ScriptForbiddenScope forbid_script;
if (!Client())
return;
// TODO(crbug.com/729196): Trace why LocalFrameView::DetachFromLayout crashes.
CHECK(!view_->IsAttached());
Client()->WillBeDetached();
// Notify ScriptController that the frame is closing, since its cleanup ends
// up calling back to LocalFrameClient via WindowProxy.
GetScriptController().ClearForClose();
// TODO(crbug.com/729196): Trace why LocalFrameView::DetachFromLayout crashes.
CHECK(!view_->IsAttached());
SetView(nullptr);
page_->GetEventHandlerRegistry().DidRemoveAllEventHandlers(*DomWindow());
DomWindow()->FrameDestroyed();
if (GetPage() && GetPage()->GetFocusController().FocusedFrame() == this)
GetPage()->GetFocusController().SetFocusedFrame(nullptr);
probe::frameDetachedFromParent(this);
Frame::Detach(type);
supplements_.clear();
frame_scheduler_.reset();
WeakIdentifierMap<LocalFrame>::NotifyObjectDestroyed(this);
lifecycle_.AdvanceTo(FrameLifecycle::kDetached);
}
bool LocalFrame::PrepareForCommit() {
return Loader().PrepareForCommit();
}
SecurityContext* LocalFrame::GetSecurityContext() const {
return GetDocument();
}
void LocalFrame::PrintNavigationErrorMessage(const Frame& target_frame,
const char* reason) {
// URLs aren't available for RemoteFrames, so the error message uses their
// origin instead.
String target_frame_description =
target_frame.IsLocalFrame()
? "with URL '" +
ToLocalFrame(target_frame).GetDocument()->Url().GetString() +
"'"
: "with origin '" +
target_frame.GetSecurityContext()
->GetSecurityOrigin()
->ToString() +
"'";
String message =
"Unsafe JavaScript attempt to initiate navigation for frame " +
target_frame_description + " from frame with URL '" +
GetDocument()->Url().GetString() + "'. " + reason + "\n";
DomWindow()->PrintErrorMessage(message);
}
void LocalFrame::PrintNavigationWarning(const String& message) {
console_->AddMessage(
ConsoleMessage::Create(kJSMessageSource, kWarningMessageLevel, message));
}
bool LocalFrame::ShouldClose() {
// TODO(dcheng): This should be fixed to dispatch beforeunload events to
// both local and remote frames.
return loader_.ShouldClose();
}
void LocalFrame::DetachChildren() {
DCHECK(loader_.StateMachine()->CreatingInitialEmptyDocument() ||
GetDocument());
if (Document* document = this->GetDocument())
ChildFrameDisconnector(*document).Disconnect();
}
void LocalFrame::DocumentAttached() {
DCHECK(GetDocument());
GetEditor().Clear();
GetEventHandler().Clear();
Selection().DocumentAttached(GetDocument());
GetInputMethodController().DocumentAttached(GetDocument());
GetSpellChecker().DocumentAttached(GetDocument());
GetTextSuggestionController().DocumentAttached(GetDocument());
}
Frame* LocalFrame::FindFrameForNavigation(const AtomicString& name,
LocalFrame& active_frame,
const KURL& destination_url) {
Frame* frame = Tree().Find(name);
if (!frame || !active_frame.CanNavigate(*frame, destination_url))
return nullptr;
return frame;
}
LocalWindowProxy* LocalFrame::WindowProxy(DOMWrapperWorld& world) {
return ToLocalWindowProxy(Frame::GetWindowProxy(world));
}
LocalDOMWindow* LocalFrame::DomWindow() const {
return ToLocalDOMWindow(dom_window_);
}
void LocalFrame::SetDOMWindow(LocalDOMWindow* dom_window) {
if (dom_window)
GetScriptController().ClearWindowProxy();
if (this->DomWindow())
this->DomWindow()->Reset();
dom_window_ = dom_window;
}
Document* LocalFrame::GetDocument() const {
return DomWindow() ? DomWindow()->document() : nullptr;
}
void LocalFrame::SetPagePopupOwner(Element& owner) {
page_popup_owner_ = &owner;
}
LayoutView* LocalFrame::ContentLayoutObject() const {
return GetDocument() ? GetDocument()->GetLayoutView() : nullptr;
}
void LocalFrame::IntrinsicSizingInfoChanged(
const IntrinsicSizingInfo& sizing_info) {
if (!Owner())
return;
// Notify the owner. For remote frame owners, notify via
// an IPC to the parent renderer; otherwise notify directly.
if (Owner()->IsRemote()) {
WebLocalFrameImpl::FromFrame(this)
->FrameWidget()
->IntrinsicSizingInfoChanged(sizing_info);
} else {
Owner()->IntrinsicSizingInfoChanged();
}
}
void LocalFrame::DidChangeVisibilityState() {
if (GetDocument())
GetDocument()->DidChangeVisibilityState();
Frame::DidChangeVisibilityState();
}
void LocalFrame::DidFreeze() {
DCHECK(RuntimeEnabledFeatures::PageLifecycleEnabled());
if (DomWindow()) {
const double freeze_event_start = CurrentTimeTicksInSeconds();
DomWindow()->DispatchEvent(Event::Create(EventTypeNames::freeze));
const double freeze_event_end = CurrentTimeTicksInSeconds();
DEFINE_STATIC_LOCAL(
CustomCountHistogram, freeze_histogram,
("DocumentEventTiming.FreezeDuration", 0, 10000000, 50));
freeze_histogram.Count((freeze_event_end - freeze_event_start) * 1000000.0);
}
}
void LocalFrame::DidResume() {
DCHECK(RuntimeEnabledFeatures::PageLifecycleEnabled());
if (DomWindow()) {
const double resume_event_start = CurrentTimeTicksInSeconds();
DomWindow()->DispatchEvent(Event::Create(EventTypeNames::resume));
const double resume_event_end = CurrentTimeTicksInSeconds();
DEFINE_STATIC_LOCAL(
CustomCountHistogram, resume_histogram,
("DocumentEventTiming.ResumeDuration", 0, 10000000, 50));
resume_histogram.Count((resume_event_end - resume_event_start) * 1000000.0);
}
}
void LocalFrame::SetIsInert(bool inert) {
is_inert_ = inert;
PropagateInertToChildFrames();
}
void LocalFrame::PropagateInertToChildFrames() {
for (Frame* child = Tree().FirstChild(); child;
child = child->Tree().NextSibling()) {
// is_inert_ means that this Frame is inert because of a modal dialog or
// inert element in an ancestor Frame. Otherwise, decide whether a child
// Frame element is inert because of an element in this Frame.
child->SetIsInert(is_inert_ ||
ToHTMLFrameOwnerElement(child->Owner())->IsInert());
}
}
LocalFrame& LocalFrame::LocalFrameRoot() const {
const LocalFrame* cur_frame = this;
while (cur_frame && cur_frame->Tree().Parent() &&
cur_frame->Tree().Parent()->IsLocalFrame())
cur_frame = ToLocalFrame(cur_frame->Tree().Parent());
return const_cast<LocalFrame&>(*cur_frame);
}
bool LocalFrame::IsCrossOriginSubframe() const {
const SecurityOrigin* security_origin =
GetSecurityContext()->GetSecurityOrigin();
return !security_origin->CanAccess(
Tree().Top().GetSecurityContext()->GetSecurityOrigin());
}
scoped_refptr<InspectorTaskRunner> LocalFrame::GetInspectorTaskRunner() {
return inspector_task_runner_;
}
void LocalFrame::StartPrinting(const FloatSize& page_size,
const FloatSize& original_page_size,
float maximum_shrink_ratio) {
SetPrinting(/*printing=*/true, /*use_printing_layout=*/true, page_size,
original_page_size, maximum_shrink_ratio);
}
void LocalFrame::StartPrintingWithoutPrintingLayout() {
SetPrinting(/*printing=*/true, /*use_printing_layout=*/false, FloatSize(),
FloatSize(), 0);
}
void LocalFrame::EndPrinting() {
SetPrinting(/*printing=*/false, /*use_printing_layout=*/false, FloatSize(),
FloatSize(), 0);
}
void LocalFrame::SetPrinting(bool printing,
bool use_printing_layout,
const FloatSize& page_size,
const FloatSize& original_page_size,
float maximum_shrink_ratio) {
// In setting printing, we should not validate resources already cached for
// the document. See https://bugs.webkit.org/show_bug.cgi?id=43704
ResourceCacheValidationSuppressor validation_suppressor(
GetDocument()->Fetcher());
GetDocument()->SetPrinting(printing ? Document::kPrinting
: Document::kFinishingPrinting);
View()->AdjustMediaTypeForPrinting(printing);
if (TextAutosizer* text_autosizer = GetDocument()->GetTextAutosizer())
text_autosizer->UpdatePageInfo();
if (use_printing_layout && ShouldUsePrintingLayout()) {
View()->ForceLayoutForPagination(page_size, original_page_size,
maximum_shrink_ratio);
} else {
if (LayoutView* layout_view = View()->GetLayoutView()) {
layout_view->SetPreferredLogicalWidthsDirty();
layout_view->SetNeedsLayout(LayoutInvalidationReason::kPrintingChanged);
layout_view->SetShouldDoFullPaintInvalidationForViewAndAllDescendants();
}
View()->UpdateLayout();
View()->AdjustViewSize();
}
// Subframes of the one we're printing don't lay out to the page size.
for (Frame* child = Tree().FirstChild(); child;
child = child->Tree().NextSibling()) {
if (child->IsLocalFrame())
ToLocalFrame(child)->StartPrintingWithoutPrintingLayout();
}
View()->SetSubtreeNeedsPaintPropertyUpdate();
if (!printing)
GetDocument()->SetPrinting(Document::kNotPrinting);
}
bool LocalFrame::ShouldUsePrintingLayout() const {
// Only the top frame being printed should be fitted to page size.
// Subframes should be constrained by parents only.
// This function considers the following three kinds of frames as top frames:
// -- frame with no parent;
// -- frame's parent is remote frame;
// -- frame's parent is not in printing mode.
// Among them, if a frame's parent is a remote frame, but in printing mode,
// this frame should not use printing layout either. But in that case, this
// frame is a local top frame, the printing must start from
// StartPrintingWithoutPrintingLayout() so this function won't been called.
return GetDocument()->Printing() &&
(!Tree().Parent() || !Tree().Parent()->IsLocalFrame() ||
!ToLocalFrame(Tree().Parent())->GetDocument()->Printing());
}
FloatSize LocalFrame::ResizePageRectsKeepingRatio(
const FloatSize& original_size,
const FloatSize& expected_size) const {
auto* layout_object = ContentLayoutObject();
if (!layout_object)
return FloatSize();
bool is_horizontal = layout_object->StyleRef().IsHorizontalWritingMode();
float width = original_size.Width();
float height = original_size.Height();
if (!is_horizontal)
std::swap(width, height);
DCHECK_GT(fabs(width), std::numeric_limits<float>::epsilon());
float ratio = height / width;
float result_width =
floorf(is_horizontal ? expected_size.Width() : expected_size.Height());
float result_height = floorf(result_width * ratio);
if (!is_horizontal)
std::swap(result_width, result_height);
return FloatSize(result_width, result_height);
}
void LocalFrame::SetPageZoomFactor(float factor) {
SetPageAndTextZoomFactors(factor, text_zoom_factor_);
}
void LocalFrame::SetTextZoomFactor(float factor) {
SetPageAndTextZoomFactors(page_zoom_factor_, factor);
}
void LocalFrame::SetPageAndTextZoomFactors(float page_zoom_factor,
float text_zoom_factor) {
if (page_zoom_factor_ == page_zoom_factor &&
text_zoom_factor_ == text_zoom_factor)
return;
Page* page = this->GetPage();
if (!page)
return;
Document* document = this->GetDocument();
if (!document)
return;
// Respect SVGs zoomAndPan="disabled" property in standalone SVG documents.
// FIXME: How to handle compound documents + zoomAndPan="disabled"? Needs SVG
// WG clarification.
if (document->IsSVGDocument()) {
if (!document->AccessSVGExtensions().ZoomAndPanEnabled())
return;
}
if (page_zoom_factor_ != page_zoom_factor &&
!RuntimeEnabledFeatures::RootLayerScrollingEnabled()) {
if (LocalFrameView* view = this->View()) {
// Update the scroll position when doing a full page zoom, so the content
// stays in relatively the same position.
ScrollableArea* scrollable_area = view->LayoutViewportScrollableArea();
ScrollOffset scroll_offset = scrollable_area->GetScrollOffset();
float percent_difference = (page_zoom_factor / page_zoom_factor_);
scrollable_area->SetScrollOffset(
ScrollOffset(scroll_offset.Width() * percent_difference,
scroll_offset.Height() * percent_difference),
kProgrammaticScroll);
}
}
page_zoom_factor_ = page_zoom_factor;
text_zoom_factor_ = text_zoom_factor;
for (Frame* child = Tree().FirstChild(); child;
child = child->Tree().NextSibling()) {
if (child->IsLocalFrame())
ToLocalFrame(child)->SetPageAndTextZoomFactors(page_zoom_factor_,
text_zoom_factor_);
}
document->MediaQueryAffectingValueChanged();
document->SetNeedsStyleRecalc(
kSubtreeStyleChange,
StyleChangeReasonForTracing::Create(StyleChangeReason::kZoom));
document->UpdateStyleAndLayoutIgnorePendingStylesheets();
}
void LocalFrame::DeviceScaleFactorChanged() {
GetDocument()->MediaQueryAffectingValueChanged();
GetDocument()->SetNeedsStyleRecalc(
kSubtreeStyleChange,
StyleChangeReasonForTracing::Create(StyleChangeReason::kZoom));
for (Frame* child = Tree().FirstChild(); child;
child = child->Tree().NextSibling()) {
if (child->IsLocalFrame())
ToLocalFrame(child)->DeviceScaleFactorChanged();
}
}
double LocalFrame::DevicePixelRatio() const {
if (!page_)
return 0;
double ratio = page_->DeviceScaleFactorDeprecated();
ratio *= PageZoomFactor();
return ratio;
}
String LocalFrame::SelectedText() const {
return Selection().SelectedText();
}
String LocalFrame::SelectedTextForClipboard() const {
if (!GetDocument())
return g_empty_string;
DCHECK(!GetDocument()->NeedsLayoutTreeUpdate());
return Selection().SelectedTextForClipboard();
}
PositionWithAffinity LocalFrame::PositionForPoint(
const LayoutPoint& frame_point) {
HitTestResult result = GetEventHandler().HitTestResultAtPoint(frame_point);
Node* node = result.InnerNodeOrImageMapImage();
if (!node)
return PositionWithAffinity();
LayoutObject* layout_object = node->GetLayoutObject();
if (!layout_object)
return PositionWithAffinity();
const PositionWithAffinity position =
layout_object->PositionForPoint(result.LocalPoint());
if (position.IsNull())
return PositionWithAffinity(FirstPositionInOrBeforeNode(*node));
return position;
}
Document* LocalFrame::DocumentAtPoint(const LayoutPoint& point_in_root_frame) {
if (!View())
return nullptr;
LayoutPoint pt = View()->RootFrameToContents(point_in_root_frame);
if (!ContentLayoutObject())
return nullptr;
HitTestResult result = GetEventHandler().HitTestResultAtPoint(
pt, HitTestRequest::kReadOnly | HitTestRequest::kActive);
return result.InnerNode() ? &result.InnerNode()->GetDocument() : nullptr;
}
bool LocalFrame::ShouldReuseDefaultView(const KURL& url) const {
// Secure transitions can only happen when navigating from the initial empty
// document.
if (!Loader().StateMachine()->IsDisplayingInitialEmptyDocument())
return false;
return GetDocument()->IsSecureTransitionTo(url);
}
void LocalFrame::RemoveSpellingMarkersUnderWords(const Vector<String>& words) {
GetSpellChecker().RemoveSpellingMarkersUnderWords(words);
}
String LocalFrame::GetLayerTreeAsTextForTesting(unsigned flags) const {
if (!ContentLayoutObject())
return String();
std::unique_ptr<JSONObject> layers;
if (RuntimeEnabledFeatures::SlimmingPaintV2Enabled()) {
layers = View()->CompositedLayersAsJSON(static_cast<LayerTreeFlags>(flags));
} else {
layers = ContentLayoutObject()->Compositor()->LayerTreeAsJSON(
static_cast<LayerTreeFlags>(flags));
}
if (flags & kLayerTreeIncludesPaintInvalidations) {
std::unique_ptr<JSONArray> object_paint_invalidations =
view_->TrackedObjectPaintInvalidationsAsJSON();
if (object_paint_invalidations && object_paint_invalidations->size()) {
if (!layers)
layers = JSONObject::Create();
layers->SetArray("objectPaintInvalidations",
std::move(object_paint_invalidations));
}
}
return layers ? layers->ToPrettyJSONString() : String();
}
bool LocalFrame::ShouldThrottleRendering() const {
return View() && View()->ShouldThrottleRendering();
}
inline LocalFrame::LocalFrame(LocalFrameClient* client,
Page& page,
FrameOwner* owner,
InterfaceRegistry* interface_registry)
: Frame(client, page, owner, LocalWindowProxyManager::Create(*this)),
frame_scheduler_(page.GetChromeClient().CreateFrameScheduler(
client->GetFrameBlameContext(),
IsMainFrame() ? WebFrameScheduler::FrameType::kMainFrame
: WebFrameScheduler::FrameType::kSubframe)),
loader_(this),
navigation_scheduler_(NavigationScheduler::Create(this)),
script_controller_(ScriptController::Create(
*this,
*static_cast<LocalWindowProxyManager*>(GetWindowProxyManager()))),
editor_(Editor::Create(*this)),
spell_checker_(SpellChecker::Create(*this)),
selection_(FrameSelection::Create(*this)),
event_handler_(new EventHandler(*this)),
console_(FrameConsole::Create(*this)),
input_method_controller_(InputMethodController::Create(*this)),
text_suggestion_controller_(new TextSuggestionController(*this)),
navigation_disable_count_(0),
page_zoom_factor_(ParentPageZoomFactor(this)),
text_zoom_factor_(ParentTextZoomFactor(this)),
in_view_source_mode_(false),
inspector_task_runner_(
InspectorTaskRunner::Create(GetTaskRunner(TaskType::kUnthrottled))),
interface_registry_(interface_registry) {
if (IsLocalRoot()) {
probe_sink_ = new CoreProbeSink();
performance_monitor_ = new PerformanceMonitor(this);
inspector_trace_events_ = new InspectorTraceEvents();
probe_sink_->addInspectorTraceEvents(inspector_trace_events_);
} else {
// Inertness only needs to be updated if this frame might inherit the
// inert state from a higher-level frame. If this is an OOPIF local root,
// it will be updated later.
UpdateInertIfPossible();
probe_sink_ = LocalFrameRoot().probe_sink_;
performance_monitor_ = LocalFrameRoot().performance_monitor_;
}
idleness_detector_ = new IdlenessDetector(this);
inspector_task_runner_->InitIsolate(V8PerIsolateData::MainThreadIsolate());
}
WebFrameScheduler* LocalFrame::FrameScheduler() {
return frame_scheduler_.get();
}
scoped_refptr<base::SingleThreadTaskRunner> LocalFrame::GetTaskRunner(
TaskType type) {
DCHECK(IsMainThread());
return frame_scheduler_->GetTaskRunner(type);
}
void LocalFrame::ScheduleVisualUpdateUnlessThrottled() {
if (ShouldThrottleRendering())
return;
GetPage()->Animator().ScheduleVisualUpdate(this);
}
bool LocalFrame::CanNavigate(const Frame& target_frame,
const KURL& destination_url) {
String error_reason;
const bool is_allowed_navigation =
CanNavigateWithoutFramebusting(target_frame, error_reason);
const bool sandboxed =
GetSecurityContext()->GetSandboxFlags() != kSandboxNone;
const bool has_user_gesture = HasBeenActivated();
// Top navigation in sandbox with or w/o 'allow-top-navigation'.
if (target_frame != this && sandboxed && target_frame == Tree().Top()) {
UseCounter::Count(this, WebFeature::kTopNavInSandbox);
if (!has_user_gesture) {
UseCounter::Count(this, WebFeature::kTopNavInSandboxWithoutGesture);
}
}
// Top navigation w/o sandbox or in sandbox with 'allow-top-navigation'.
if (target_frame != this &&
!GetSecurityContext()->IsSandboxed(kSandboxTopNavigation) &&
target_frame == Tree().Top()) {
DEFINE_STATIC_LOCAL(EnumerationHistogram, framebust_histogram,
("WebCore.Framebust", 4));
const unsigned kUserGestureBit = 0x1;
const unsigned kAllowedBit = 0x2;
unsigned framebust_params = 0;
if (has_user_gesture)
framebust_params |= kUserGestureBit;
UseCounter::Count(this, WebFeature::kTopNavigationFromSubFrame);
if (sandboxed) { // Sandboxed with 'allow-top-navigation'.
UseCounter::Count(this, WebFeature::kTopNavInSandboxWithPerm);
if (!has_user_gesture) {
UseCounter::Count(this,
WebFeature::kTopNavInSandboxWithPermButNoGesture);
}
}
if (is_allowed_navigation)
framebust_params |= kAllowedBit;
framebust_histogram.Count(framebust_params);
if (has_user_gesture || is_allowed_navigation ||
target_frame.GetSecurityContext()->GetSecurityOrigin()->CanAccess(
SecurityOrigin::Create(destination_url).get())) {
return true;
}
// Frame-busting used to be generally allowed in most situations, but may
// now blocked if the document initiating the navigation has never received
// a user gesture and the navigation isn't same-origin with the target.
if (!RuntimeEnabledFeatures::
FramebustingNeedsSameOriginOrUserGestureEnabled()) {
String target_frame_description =
target_frame.IsLocalFrame() ? "with URL '" +
ToLocalFrame(target_frame)
.GetDocument()
->Url()
.GetString() +
"'"
: "with origin '" +
target_frame.GetSecurityContext()
->GetSecurityOrigin()
->ToString() +
"'";
String message = "Frame with URL '" + GetDocument()->Url().GetString() +
"' attempted to navigate its top-level window " +
target_frame_description +
". Navigating the top-level window from a cross-origin "
"iframe will soon require that the iframe has received "
"a user gesture. See "
"https://www.chromestatus.com/features/"
"5851021045661696.";
PrintNavigationWarning(message);
return true;
}
error_reason =
"The frame attempting navigation is targeting its top-level window, "
"but is neither same-origin with its target nor has it received a "
"user gesture. See "
"https://www.chromestatus.com/features/5851021045661696.";
PrintNavigationErrorMessage(target_frame, error_reason.Latin1().data());
Client()->DidBlockFramebust(destination_url);
return false;
}
// Navigating window.opener cross origin, without user activation. See
// crbug.com/813643.
if (Client()->Opener() == target_frame &&
!HasTransientUserActivation(this, false /* checkIfMainThread */) &&
!target_frame.GetSecurityContext()->GetSecurityOrigin()->CanAccess(
SecurityOrigin::Create(destination_url).get())) {
UseCounter::Count(this, WebFeature::kOpenerNavigationWithoutGesture);
}
if (!is_allowed_navigation && !error_reason.IsNull())
PrintNavigationErrorMessage(target_frame, error_reason.Latin1().data());
return is_allowed_navigation;
}
static bool CanAccessAncestor(const SecurityOrigin& active_security_origin,
const Frame* target_frame) {
// targetFrame can be 0 when we're trying to navigate a top-level frame
// that has a 0 opener.
if (!target_frame)
return false;
const bool is_local_active_origin = active_security_origin.IsLocal();
for (const Frame* ancestor_frame = target_frame; ancestor_frame;
ancestor_frame = ancestor_frame->Tree().Parent()) {
const SecurityOrigin* ancestor_security_origin =
ancestor_frame->GetSecurityContext()->GetSecurityOrigin();
if (active_security_origin.CanAccess(ancestor_security_origin))
return true;
// Allow file URL descendant navigation even when
// allowFileAccessFromFileURLs is false.
// FIXME: It's a bit strange to special-case local origins here. Should we
// be doing something more general instead?
if (is_local_active_origin && ancestor_security_origin->IsLocal())
return true;
}
return false;
}
blink::mojom::blink::PrefetchURLLoaderService*
LocalFrame::PrefetchURLLoaderService() {
if (!prefetch_loader_service_ &&
base::FeatureList::IsEnabled(network::features::kNetworkService)) {
GetInterfaceProvider().GetInterface(
mojo::MakeRequest(&prefetch_loader_service_));
}
return prefetch_loader_service_.get();
}
bool LocalFrame::CanNavigateWithoutFramebusting(const Frame& target_frame,
String& reason) {
if (&target_frame == this)
return true;
if (GetSecurityContext()->IsSandboxed(kSandboxNavigation)) {
if (!target_frame.Tree().IsDescendantOf(this) &&
!target_frame.IsMainFrame()) {
reason =
"The frame attempting navigation is sandboxed, and is therefore "
"disallowed from navigating its ancestors.";
return false;
}
// Sandboxed frames can also navigate popups, if the
// 'allow-sandbox-escape-via-popup' flag is specified, or if
// 'allow-popups' flag is specified, or if the
if (target_frame.IsMainFrame() && target_frame != Tree().Top() &&
GetSecurityContext()->IsSandboxed(
kSandboxPropagatesToAuxiliaryBrowsingContexts) &&
(GetSecurityContext()->IsSandboxed(kSandboxPopups) ||
target_frame.Client()->Opener() != this)) {
reason =
"The frame attempting navigation is sandboxed and is trying "
"to navigate a popup, but is not the popup's opener and is not "
"set to propagate sandboxing to popups.";
return false;
}
// Top navigation is forbidden unless opted-in. allow-top-navigation or
// allow-top-navigation-by-user-activation will also skips origin checks.
if (target_frame == Tree().Top()) {
if (GetSecurityContext()->IsSandboxed(kSandboxTopNavigation) &&
GetSecurityContext()->IsSandboxed(
kSandboxTopNavigationByUserActivation)) {
reason =
"The frame attempting navigation of the top-level window is "
"sandboxed, but the flag of 'allow-top-navigation' or "
"'allow-top-navigation-by-user-activation' is not set.";
return false;
}
if (GetSecurityContext()->IsSandboxed(kSandboxTopNavigation) &&
!GetSecurityContext()->IsSandboxed(
kSandboxTopNavigationByUserActivation) &&
!Frame::HasTransientUserActivation(this)) {
// With only 'allow-top-navigation-by-user-activation' (but not
// 'allow-top-navigation'), top navigation requires a user gesture.
reason =
"The frame attempting navigation of the top-level window is "
"sandboxed with the 'allow-top-navigation-by-user-activation' "
"flag, but has no user activation (aka gesture). See "
"https://www.chromestatus.com/feature/5629582019395584.";
return false;
}
return true;
}
}
DCHECK(GetSecurityContext()->GetSecurityOrigin());
const SecurityOrigin& origin = *GetSecurityContext()->GetSecurityOrigin();
// This is the normal case. A document can navigate its decendant frames,
// or, more generally, a document can navigate a frame if the document is
// in the same origin as any of that frame's ancestors (in the frame
// hierarchy).
//
// See http://www.adambarth.com/papers/2008/barth-jackson-mitchell.pdf for
// historical information about this security check.
if (CanAccessAncestor(origin, &target_frame))
return true;
// Top-level frames are easier to navigate than other frames because they
// display their URLs in the address bar (in most browsers). However, there
// are still some restrictions on navigation to avoid nuisance attacks.
// Specifically, a document can navigate a top-level frame if that frame
// opened the document or if the document is the same-origin with any of
// the top-level frame's opener's ancestors (in the frame hierarchy).
//
// In both of these cases, the document performing the navigation is in
// some way related to the frame being navigate (e.g., by the "opener"
// and/or "parent" relation). Requiring some sort of relation prevents a
// document from navigating arbitrary, unrelated top-level frames.
if (!target_frame.Tree().Parent()) {
if (target_frame == Client()->Opener())
return true;
if (CanAccessAncestor(origin, target_frame.Client()->Opener()))
return true;
}
reason =
"The frame attempting navigation is neither same-origin with the target, "
"nor is it the target's parent or opener.";
return false;
}
service_manager::InterfaceProvider& LocalFrame::GetInterfaceProvider() {
DCHECK(Client());
return *Client()->GetInterfaceProvider();
}
AssociatedInterfaceProvider*
LocalFrame::GetRemoteNavigationAssociatedInterfaces() {
DCHECK(Client());
return Client()->GetRemoteNavigationAssociatedInterfaces();
}
LocalFrameClient* LocalFrame::Client() const {
return static_cast<LocalFrameClient*>(Frame::Client());
}
ContentSettingsClient* LocalFrame::GetContentSettingsClient() {
return Client() ? &Client()->GetContentSettingsClient() : nullptr;
}
FrameResourceCoordinator* LocalFrame::GetFrameResourceCoordinator() {
if (!BlinkResourceCoordinatorBase::IsEnabled())
return nullptr;
if (!frame_resource_coordinator_) {
auto local_frame_client = Client();
if (!local_frame_client)
return nullptr;
frame_resource_coordinator_.reset(FrameResourceCoordinator::Create(
local_frame_client->GetInterfaceProvider()));
}
return frame_resource_coordinator_.get();
}
PluginData* LocalFrame::GetPluginData() const {
if (!Loader().AllowPlugins(kNotAboutToInstantiatePlugin))
return nullptr;
return GetPage()->GetPluginData(
Tree().Top().GetSecurityContext()->GetSecurityOrigin());
}
DEFINE_WEAK_IDENTIFIER_MAP(LocalFrame);
FrameNavigationDisabler::FrameNavigationDisabler(LocalFrame& frame)
: frame_(&frame) {
frame_->DisableNavigation();
}
FrameNavigationDisabler::~FrameNavigationDisabler() {
frame_->EnableNavigation();
}
namespace {
bool IsScopedFrameBlamerEnabled() {
// Must match the category used in content::FrameBlameContext.
static const auto* enabled =
TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED("blink");
return *enabled;
}
} // namespace
ScopedFrameBlamer::ScopedFrameBlamer(LocalFrame* frame)
: frame_(IsScopedFrameBlamerEnabled() ? frame : nullptr) {
if (LIKELY(!frame_))
return;
LocalFrameClient* client = frame_->Client();
if (!client)
return;
if (BlameContext* context = client->GetFrameBlameContext())
context->Enter();
}
void ScopedFrameBlamer::LeaveContext() {
LocalFrameClient* client = frame_->Client();
if (!client)
return;
if (BlameContext* context = client->GetFrameBlameContext())
context->Leave();
}
void LocalFrame::MaybeAllowImagePlaceholder(FetchParameters& params) const {
if (GetSettings() && GetSettings()->GetFetchImagePlaceholders()) {
params.SetAllowImagePlaceholder();
return;
}
if (Client() &&
ShouldUseClientLoFiForRequest(params.GetResourceRequest(),
Client()->GetPreviewsStateForFrame())) {
params.MutableResourceRequest().SetPreviewsState(
params.GetResourceRequest().GetPreviewsState() |
WebURLRequest::kClientLoFiOn);
params.SetAllowImagePlaceholder();
}
}
WebURLLoaderFactory* LocalFrame::GetURLLoaderFactory() {
if (!url_loader_factory_)
url_loader_factory_ = Client()->CreateURLLoaderFactory();
return url_loader_factory_.get();
}
WebPluginContainerImpl* LocalFrame::GetWebPluginContainer(Node* node) const {
if (GetDocument() && GetDocument()->IsPluginDocument()) {
return ToPluginDocument(GetDocument())->GetPluginView();
}
if (!node) {
DCHECK(GetDocument());
node = GetDocument()->FocusedElement();
}
if (node) {
return node->GetWebPluginContainer();
}
return nullptr;
}
void LocalFrame::SetViewportIntersectionFromParent(
const IntRect& viewport_intersection) {
if (remote_viewport_intersection_ != viewport_intersection) {
remote_viewport_intersection_ = viewport_intersection;
if (View())
View()->ScheduleAnimation();
}
}
void LocalFrame::ForceSynchronousDocumentInstall(
const AtomicString& mime_type,
scoped_refptr<SharedBuffer> data) {
CHECK(loader_.StateMachine()->IsDisplayingInitialEmptyDocument());
DCHECK(!Client()->IsLocalFrameClientImpl());
// Any Document requires Shutdown() before detach, even the initial empty
// document.
GetDocument()->Shutdown();
DomWindow()->InstallNewDocument(
mime_type, DocumentInit::Create().WithFrame(this), false);
loader_.StateMachine()->AdvanceTo(
FrameLoaderStateMachine::kCommittedFirstRealLoad);
GetDocument()->OpenForNavigation(kForceSynchronousParsing, mime_type,
AtomicString("UTF-8"));
data->ForEachSegment(
[this](const char* segment, size_t segment_size, size_t segment_offset) {
GetDocument()->Parser()->AppendBytes(segment, segment_size);
return true;
});
GetDocument()->Parser()->Finish();
// Upon loading of SVGIamges, log PageVisits in UseCounter.
// Do not track PageVisits for inspector, web page popups, and validation
// message overlays (the other callers of this method).
if (GetPage() && GetDocument()->IsSVGDocument())
GetPage()->GetUseCounter().DidCommitLoad(this);
}
bool LocalFrame::IsUsingDataSavingPreview() const {
if (!Client())
return false;
WebURLRequest::PreviewsState previews_state =
Client()->GetPreviewsStateForFrame();
// Check for any data saving type of preview.
return previews_state &
(WebURLRequest::kServerLoFiOn | WebURLRequest::kClientLoFiOn |
WebURLRequest::kNoScriptOn);
}
ComputedAccessibleNode* LocalFrame::GetOrCreateComputedAccessibleNode(
AXID ax_id,
WebComputedAXTree* tree) {
if (computed_node_mapping_.find(ax_id) == computed_node_mapping_.end()) {
ComputedAccessibleNode* node =
ComputedAccessibleNode::Create(ax_id, tree, this);
computed_node_mapping_.insert(ax_id, node);
}
return computed_node_mapping_.at(ax_id);
}
} // namespace blink