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/*
* Copyright (C) 2011, 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 "web/WebViewImpl.h"
#include "core/CSSValueKeywords.h"
#include "core/HTMLNames.h"
#include "core/dom/Document.h"
#include "core/dom/DocumentMarkerController.h"
#include "core/dom/NodeRenderingTraversal.h"
#include "core/dom/Text.h"
#include "core/editing/Editor.h"
#include "core/editing/FrameSelection.h"
#include "core/editing/HTMLInterchange.h"
#include "core/editing/InputMethodController.h"
#include "core/editing/TextIterator.h"
#include "core/editing/markup.h"
#include "core/events/KeyboardEvent.h"
#include "core/events/WheelEvent.h"
#include "core/frame/FrameHost.h"
#include "core/frame/FrameView.h"
#include "core/frame/LocalFrame.h"
#include "core/frame/Settings.h"
#include "core/html/HTMLImportElement.h"
#include "core/html/ime/InputMethodContext.h"
#include "core/loader/FrameLoader.h"
#include "core/loader/UniqueIdentifier.h"
#include "core/page/Chrome.h"
#include "core/page/EventHandler.h"
#include "core/page/EventWithHitTestResults.h"
#include "core/page/FocusController.h"
#include "core/page/Page.h"
#include "core/page/TouchDisambiguation.h"
#include "core/rendering/RenderView.h"
#include "core/rendering/compositing/RenderLayerCompositor.h"
#include "platform/Cursor.h"
#include "platform/KeyboardCodes.h"
#include "platform/Logging.h"
#include "platform/NotImplemented.h"
#include "platform/PlatformGestureEvent.h"
#include "platform/PlatformKeyboardEvent.h"
#include "platform/PlatformMouseEvent.h"
#include "platform/PlatformWheelEvent.h"
#include "platform/RuntimeEnabledFeatures.h"
#include "platform/TraceEvent.h"
#include "platform/UserGestureIndicator.h"
#include "platform/exported/WebActiveGestureAnimation.h"
#include "platform/fonts/FontCache.h"
#include "platform/graphics/Color.h"
#include "platform/graphics/Image.h"
#include "platform/graphics/ImageBuffer.h"
#include "platform/scroll/Scrollbar.h"
#include "platform/weborigin/SchemeRegistry.h"
#include "public/platform/Platform.h"
#include "public/platform/WebFloatPoint.h"
#include "public/platform/WebGestureCurve.h"
#include "public/platform/WebImage.h"
#include "public/platform/WebLayerTreeView.h"
#include "public/platform/WebURLRequest.h"
#include "public/platform/WebVector.h"
#include "public/web/WebActiveWheelFlingParameters.h"
#include "public/web/WebBeginFrameArgs.h"
#include "public/web/WebFrameClient.h"
#include "public/web/WebHitTestResult.h"
#include "public/web/WebNode.h"
#include "public/web/WebRange.h"
#include "public/web/WebTextInputInfo.h"
#include "public/web/WebViewClient.h"
#include "web/CompositionUnderlineVectorBuilder.h"
#include "web/GraphicsLayerFactoryChromium.h"
#include "web/LinkHighlight.h"
#include "web/WebInputEventConversion.h"
#include "web/WebLocalFrameImpl.h"
#include "web/WebSettingsImpl.h"
#include "web/painting/ContinuousPainter.h"
#include "wtf/CurrentTime.h"
#include "wtf/RefPtr.h"
#include "wtf/TemporaryChange.h"
// Get rid of WTF's pow define so we can use std::pow.
#undef pow
#include <cmath> // for std::pow
namespace blink {
// WebView ----------------------------------------------------------------
WebView* WebView::create(WebViewClient* client)
{
// Pass the WebViewImpl's self-reference to the caller.
return WebViewImpl::create(client);
}
WebViewImpl* WebViewImpl::create(WebViewClient* client)
{
// Pass the WebViewImpl's self-reference to the caller.
return adoptRef(new WebViewImpl(client)).leakRef();
}
void WebViewImpl::setMainFrame(WebFrame* frame)
{
toWebLocalFrameImpl(frame)->initializeCoreFrame(&page()->frameHost());
}
void WebViewImpl::setSpellCheckClient(WebSpellCheckClient* spellCheckClient)
{
m_spellCheckClient = spellCheckClient;
}
WebViewImpl::WebViewImpl(WebViewClient* client)
: m_client(client)
, m_spellCheckClient(0)
, m_chromeClientImpl(this)
, m_editorClientImpl(this)
, m_spellCheckerClientImpl(this)
, m_fixedLayoutSizeLock(false)
, m_doingDragAndDrop(false)
, m_ignoreInputEvents(false)
, m_compositorDeviceScaleFactorOverride(0)
, m_rootLayerScale(1)
, m_suppressNextKeypressEvent(false)
, m_imeAcceptEvents(true)
, m_isTransparent(false)
, m_tabsToLinks(false)
, m_layerTreeView(0)
, m_rootLayer(0)
, m_rootGraphicsLayer(0)
, m_rootTransformLayer(0)
, m_graphicsLayerFactory(adoptPtr(new GraphicsLayerFactoryChromium(this)))
, m_isAcceleratedCompositingActive(false)
, m_layerTreeViewCommitsDeferred(false)
, m_layerTreeViewClosed(false)
, m_matchesHeuristicsForGpuRasterization(false)
, m_recreatingGraphicsContext(false)
, m_flingModifier(0)
, m_flingSourceDevice(false)
, m_showFPSCounter(false)
, m_showPaintRects(false)
, m_showDebugBorders(false)
, m_continuousPaintingEnabled(false)
, m_showScrollBottleneckRects(false)
, m_baseBackgroundColor(Color::white)
, m_backgroundColorOverride(Color::transparent)
, m_userGestureObserved(false)
{
Page::PageClients pageClients;
pageClients.chromeClient = &m_chromeClientImpl;
pageClients.editorClient = &m_editorClientImpl;
pageClients.spellCheckerClient = &m_spellCheckerClientImpl;
m_page = adoptPtr(new Page(pageClients, m_client->services()));
m_page->makeOrdinary();
setDeviceScaleFactor(m_client->screenInfo().deviceScaleFactor);
setVisibilityState(m_client->visibilityState(), true);
m_layerTreeView = m_client->initializeLayerTreeView();
}
WebViewImpl::~WebViewImpl()
{
ASSERT(!m_page);
}
WebLocalFrameImpl* WebViewImpl::mainFrameImpl()
{
return m_page ? WebLocalFrameImpl::fromFrame(m_page->mainFrame()) : 0;
}
bool WebViewImpl::tabKeyCyclesThroughElements() const
{
ASSERT(m_page);
return m_page->tabKeyCyclesThroughElements();
}
void WebViewImpl::setTabKeyCyclesThroughElements(bool value)
{
if (m_page)
m_page->setTabKeyCyclesThroughElements(value);
}
void WebViewImpl::handleMouseLeave(LocalFrame& mainFrame, const WebMouseEvent& event)
{
m_client->setMouseOverURL(WebURL());
PageWidgetEventHandler::handleMouseLeave(mainFrame, event);
}
void WebViewImpl::handleMouseDown(LocalFrame& mainFrame, const WebMouseEvent& event)
{
m_lastMouseDownPoint = WebPoint(event.x, event.y);
PageWidgetEventHandler::handleMouseDown(mainFrame, event);
if (event.button == WebMouseEvent::ButtonLeft && m_mouseCaptureNode)
m_mouseCaptureGestureToken = mainFrame.eventHandler().takeLastMouseDownGestureToken();
}
void WebViewImpl::handleMouseUp(LocalFrame& mainFrame, const WebMouseEvent& event)
{
PageWidgetEventHandler::handleMouseUp(mainFrame, event);
}
bool WebViewImpl::handleMouseWheel(LocalFrame& mainFrame, const WebMouseWheelEvent& event)
{
return PageWidgetEventHandler::handleMouseWheel(mainFrame, event);
}
// FIXME(sky): This appears to be unused.
bool WebViewImpl::scrollBy(const WebFloatSize& delta, const WebFloatSize& velocity)
{
if (m_flingSourceDevice == WebGestureDeviceTouchpad) {
WebMouseWheelEvent syntheticWheel;
const float tickDivisor = WheelEvent::TickMultiplier;
syntheticWheel.deltaX = delta.width;
syntheticWheel.deltaY = delta.height;
syntheticWheel.wheelTicksX = delta.width / tickDivisor;
syntheticWheel.wheelTicksY = delta.height / tickDivisor;
syntheticWheel.hasPreciseScrollingDeltas = true;
syntheticWheel.x = m_positionOnFlingStart.x;
syntheticWheel.y = m_positionOnFlingStart.y;
syntheticWheel.globalX = m_globalPositionOnFlingStart.x;
syntheticWheel.globalY = m_globalPositionOnFlingStart.y;
syntheticWheel.modifiers = m_flingModifier;
if (m_page && m_page->mainFrame() && m_page->mainFrame()->view())
return handleMouseWheel(*m_page->mainFrame(), syntheticWheel);
} else {
WebGestureEvent syntheticGestureEvent;
syntheticGestureEvent.type = WebInputEvent::GestureScrollUpdateWithoutPropagation;
syntheticGestureEvent.data.scrollUpdate.deltaX = delta.width;
syntheticGestureEvent.data.scrollUpdate.deltaY = delta.height;
syntheticGestureEvent.x = m_positionOnFlingStart.x;
syntheticGestureEvent.y = m_positionOnFlingStart.y;
syntheticGestureEvent.globalX = m_globalPositionOnFlingStart.x;
syntheticGestureEvent.globalY = m_globalPositionOnFlingStart.y;
syntheticGestureEvent.modifiers = m_flingModifier;
syntheticGestureEvent.sourceDevice = WebGestureDeviceTouchscreen;
if (m_page && m_page->mainFrame() && m_page->mainFrame()->view())
return handleGestureEvent(syntheticGestureEvent);
}
return false;
}
bool WebViewImpl::handleGestureEvent(const WebGestureEvent& event)
{
bool eventSwallowed = false;
bool eventCancelled = false; // for disambiguation
// Special handling for slow-path fling gestures.
switch (event.type) {
case WebInputEvent::GestureFlingStart: {
if (mainFrameImpl()->frame()->eventHandler().isScrollbarHandlingGestures())
break;
m_client->cancelScheduledContentIntents();
m_positionOnFlingStart = WebPoint(event.x, event.y);
m_globalPositionOnFlingStart = WebPoint(event.globalX, event.globalY);
m_flingModifier = event.modifiers;
m_flingSourceDevice = event.sourceDevice;
OwnPtr<WebGestureCurve> flingCurve = adoptPtr(Platform::current()->createFlingAnimationCurve(event.sourceDevice, WebFloatPoint(event.data.flingStart.velocityX, event.data.flingStart.velocityY), WebSize()));
ASSERT(flingCurve);
m_gestureAnimation = WebActiveGestureAnimation::createAtAnimationStart(flingCurve.release(), this);
scheduleAnimation();
eventSwallowed = true;
m_client->didHandleGestureEvent(event, eventCancelled);
return eventSwallowed;
}
case WebInputEvent::GestureFlingCancel:
if (endActiveFlingAnimation())
eventSwallowed = true;
m_client->didHandleGestureEvent(event, eventCancelled);
return eventSwallowed;
default:
break;
}
PlatformGestureEventBuilder platformEvent(mainFrameImpl()->frameView(), event);
// FIXME: Remove redundant hit tests by pushing the call to EventHandler::targetGestureEvent
// up to this point and pass GestureEventWithHitTestResults around.
// Handle link highlighting outside the main switch to avoid getting lost in the
// complicated set of cases handled below.
switch (event.type) {
case WebInputEvent::GestureShowPress:
// Queue a highlight animation, then hand off to regular handler.
enableTapHighlightAtPoint(platformEvent);
break;
case WebInputEvent::GestureTapCancel:
case WebInputEvent::GestureTap:
case WebInputEvent::GestureLongPress:
for (size_t i = 0; i < m_linkHighlights.size(); ++i)
m_linkHighlights[i]->startHighlightAnimationIfNeeded();
break;
default:
break;
}
switch (event.type) {
case WebInputEvent::GestureTap: {
m_client->cancelScheduledContentIntents();
if (detectContentOnTouch(platformEvent.position())) {
eventSwallowed = true;
break;
}
// Don't trigger a disambiguation popup on sites designed for mobile devices.
// Instead, assume that the page has been designed with big enough buttons and links.
if (event.data.tap.width > 0 && !shouldDisableDesktopWorkarounds()) {
// FIXME: didTapMultipleTargets should just take a rect instead of
// an event.
WebGestureEvent scaledEvent = event;
IntRect boundingBox(scaledEvent.x - scaledEvent.data.tap.width / 2, scaledEvent.y - scaledEvent.data.tap.height / 2, scaledEvent.data.tap.width, scaledEvent.data.tap.height);
Vector<IntRect> goodTargets;
Vector<RawPtr<Node> > highlightNodes;
findGoodTouchTargets(boundingBox, mainFrameImpl()->frame(), goodTargets, highlightNodes);
// FIXME: replace touch adjustment code when numberOfGoodTargets == 1?
// Single candidate case is currently handled by: https://bugs.webkit.org/show_bug.cgi?id=85101
if (goodTargets.size() >= 2 && m_client && m_client->didTapMultipleTargets(scaledEvent, goodTargets)) {
enableTapHighlights(highlightNodes);
for (size_t i = 0; i < m_linkHighlights.size(); ++i)
m_linkHighlights[i]->startHighlightAnimationIfNeeded();
eventSwallowed = true;
eventCancelled = true;
break;
}
}
eventSwallowed = mainFrameImpl()->frame()->eventHandler().handleGestureEvent(platformEvent);
break;
}
case WebInputEvent::GestureTwoFingerTap:
case WebInputEvent::GestureLongPress:
case WebInputEvent::GestureLongTap: {
if (!mainFrameImpl() || !mainFrameImpl()->frameView())
break;
m_client->cancelScheduledContentIntents();
eventSwallowed = mainFrameImpl()->frame()->eventHandler().handleGestureEvent(platformEvent);
break;
}
case WebInputEvent::GestureShowPress: {
m_client->cancelScheduledContentIntents();
eventSwallowed = mainFrameImpl()->frame()->eventHandler().handleGestureEvent(platformEvent);
break;
}
case WebInputEvent::GestureDoubleTap:
// GestureDoubleTap is currently only used by Android for zooming. For WebCore,
// GestureTap with tap count = 2 is used instead. So we drop GestureDoubleTap here.
eventSwallowed = true;
break;
case WebInputEvent::GestureScrollBegin:
case WebInputEvent::GesturePinchBegin:
m_client->cancelScheduledContentIntents();
case WebInputEvent::GestureTapDown:
case WebInputEvent::GestureScrollEnd:
case WebInputEvent::GestureScrollUpdate:
case WebInputEvent::GestureScrollUpdateWithoutPropagation:
case WebInputEvent::GestureTapCancel:
case WebInputEvent::GestureTapUnconfirmed:
case WebInputEvent::GesturePinchEnd:
case WebInputEvent::GesturePinchUpdate:
case WebInputEvent::GestureFlingStart: {
eventSwallowed = mainFrameImpl()->frame()->eventHandler().handleGestureEvent(platformEvent);
break;
}
default:
ASSERT_NOT_REACHED();
}
m_client->didHandleGestureEvent(event, eventCancelled);
return eventSwallowed;
}
void WebViewImpl::transferActiveWheelFlingAnimation(const WebActiveWheelFlingParameters& parameters)
{
TRACE_EVENT0("blink", "WebViewImpl::transferActiveWheelFlingAnimation");
ASSERT(!m_gestureAnimation);
m_positionOnFlingStart = parameters.point;
m_globalPositionOnFlingStart = parameters.globalPoint;
m_flingModifier = parameters.modifiers;
OwnPtr<WebGestureCurve> curve = adoptPtr(Platform::current()->createFlingAnimationCurve(parameters.sourceDevice, WebFloatPoint(parameters.delta), parameters.cumulativeScroll));
ASSERT(curve);
m_gestureAnimation = WebActiveGestureAnimation::createWithTimeOffset(curve.release(), this, parameters.startTime);
scheduleAnimation();
}
bool WebViewImpl::endActiveFlingAnimation()
{
if (m_gestureAnimation) {
m_gestureAnimation.clear();
if (m_layerTreeView)
m_layerTreeView->didStopFlinging();
return true;
}
return false;
}
void WebViewImpl::setShowFPSCounter(bool show)
{
if (m_layerTreeView) {
TRACE_EVENT0("blink", "WebViewImpl::setShowFPSCounter");
m_layerTreeView->setShowFPSCounter(show);
}
m_showFPSCounter = show;
}
void WebViewImpl::setShowPaintRects(bool show)
{
if (m_layerTreeView) {
TRACE_EVENT0("blink", "WebViewImpl::setShowPaintRects");
m_layerTreeView->setShowPaintRects(show);
}
m_showPaintRects = show;
}
void WebViewImpl::setShowDebugBorders(bool show)
{
if (m_layerTreeView)
m_layerTreeView->setShowDebugBorders(show);
m_showDebugBorders = show;
}
void WebViewImpl::setContinuousPaintingEnabled(bool enabled)
{
if (m_layerTreeView) {
TRACE_EVENT0("blink", "WebViewImpl::setContinuousPaintingEnabled");
m_layerTreeView->setContinuousPaintingEnabled(enabled);
}
m_continuousPaintingEnabled = enabled;
m_client->scheduleAnimation();
}
void WebViewImpl::setShowScrollBottleneckRects(bool show)
{
if (m_layerTreeView)
m_layerTreeView->setShowScrollBottleneckRects(show);
m_showScrollBottleneckRects = show;
}
void WebViewImpl::getSelectionRootBounds(WebRect& bounds) const
{
const LocalFrame* frame = focusedCoreFrame();
if (!frame)
return;
Element* root = frame->selection().rootEditableElementOrDocumentElement();
if (!root)
return;
IntRect boundingBox = root->pixelSnappedBoundingBox();
boundingBox = root->document().frame()->view()->contentsToWindow(boundingBox);
bounds = boundingBox;
}
void WebViewImpl::acceptLanguagesChanged()
{
if (!page())
return;
page()->acceptLanguagesChanged();
}
bool WebViewImpl::handleKeyEvent(const WebKeyboardEvent& event)
{
ASSERT((event.type == WebInputEvent::RawKeyDown)
|| (event.type == WebInputEvent::KeyDown)
|| (event.type == WebInputEvent::KeyUp));
// Halt an in-progress fling on a key event.
endActiveFlingAnimation();
// Please refer to the comments explaining the m_suppressNextKeypressEvent
// member.
// The m_suppressNextKeypressEvent is set if the KeyDown is handled by
// Webkit. A keyDown event is typically associated with a keyPress(char)
// event and a keyUp event. We reset this flag here as this is a new keyDown
// event.
m_suppressNextKeypressEvent = false;
RefPtr<LocalFrame> focusedFrame = focusedCoreFrame();
if (!focusedFrame)
return false;
RefPtr<LocalFrame> frame = focusedFrame.get();
PlatformKeyboardEventBuilder evt(event);
if (frame->eventHandler().keyEvent(evt)) {
if (WebInputEvent::RawKeyDown == event.type) {
// Suppress the next keypress event unless the focused node is a plug-in node.
// (Flash needs these keypress events to handle non-US keyboards.)
m_suppressNextKeypressEvent = true;
}
return true;
}
return keyEventDefault(event);
}
bool WebViewImpl::handleCharEvent(const WebKeyboardEvent& event)
{
ASSERT(event.type == WebInputEvent::Char);
// Please refer to the comments explaining the m_suppressNextKeypressEvent
// member. The m_suppressNextKeypressEvent is set if the KeyDown is
// handled by Webkit. A keyDown event is typically associated with a
// keyPress(char) event and a keyUp event. We reset this flag here as it
// only applies to the current keyPress event.
bool suppress = m_suppressNextKeypressEvent;
m_suppressNextKeypressEvent = false;
LocalFrame* frame = focusedCoreFrame();
if (!frame)
return suppress;
EventHandler& handler = frame->eventHandler();
PlatformKeyboardEventBuilder evt(event);
if (!evt.isCharacterKey())
return true;
// Accesskeys are triggered by char events and can't be suppressed.
if (handler.handleAccessKey(evt))
return true;
// Safari 3.1 does not pass off windows system key messages (WM_SYSCHAR) to
// the eventHandler::keyEvent. We mimic this behavior on all platforms since
// for now we are converting other platform's key events to windows key
// events.
if (evt.isSystemKey())
return false;
if (!suppress && !handler.keyEvent(evt))
return keyEventDefault(event);
return true;
}
WebRect WebViewImpl::computeBlockBounds(const WebRect& rect, bool ignoreClipping)
{
if (!mainFrameImpl())
return WebRect();
// Use the rect-based hit test to find the node.
IntPoint point = mainFrameImpl()->frameView()->windowToContents(IntPoint(rect.x, rect.y));
HitTestRequest::HitTestRequestType hitType = HitTestRequest::ReadOnly | HitTestRequest::Active | (ignoreClipping ? HitTestRequest::IgnoreClipping : 0);
HitTestResult result = mainFrameImpl()->frame()->eventHandler().hitTestResultAtPoint(point, hitType, IntSize(rect.width, rect.height));
Node* node = result.innerNonSharedNode();
if (!node)
return WebRect();
// Find the block type node based on the hit node.
// FIXME: This wants to walk composed tree with NodeRenderingTraversal::parent().
while (node && (!node->renderer() || node->renderer()->isInline()))
node = NodeRenderingTraversal::parent(node);
// Return the bounding box in the window coordinate system.
if (node) {
IntRect rect = node->Node::pixelSnappedBoundingBox();
LocalFrame* frame = node->document().frame();
return frame->view()->contentsToWindow(rect);
}
return WebRect();
}
WebRect WebViewImpl::widenRectWithinPageBounds(const WebRect& source, int targetMargin, int minimumMargin)
{
WebSize maxSize;
if (mainFrame())
maxSize = mainFrame()->contentsSize();
int leftMargin = targetMargin;
int rightMargin = targetMargin;
const int absoluteSourceX = source.x;
if (leftMargin > absoluteSourceX) {
leftMargin = absoluteSourceX;
rightMargin = std::max(leftMargin, minimumMargin);
}
const int maximumRightMargin = maxSize.width - (source.width + absoluteSourceX);
if (rightMargin > maximumRightMargin) {
rightMargin = maximumRightMargin;
leftMargin = std::min(leftMargin, std::max(rightMargin, minimumMargin));
}
const int newWidth = source.width + leftMargin + rightMargin;
const int newX = source.x - leftMargin;
ASSERT(newWidth >= 0);
ASSERT(newX + newWidth <= maxSize.width);
return WebRect(newX, source.y, newWidth, source.height);
}
void WebViewImpl::computeScaleAndScrollForBlockRect(const WebPoint& hitPoint, const WebRect& blockRect, float padding, float defaultScaleWhenAlreadyLegible, float& scale, WebPoint& scroll)
{
//FIXME(sky)
}
static Node* findCursorDefiningAncestor(Node* node, LocalFrame* frame)
{
// Go up the tree to find the node that defines a mouse cursor style
while (node) {
if (node->renderer()) {
ECursor cursor = node->renderer()->style()->cursor();
if (cursor != CURSOR_AUTO || frame->eventHandler().useHandCursor(node, node->isLink()))
break;
}
node = NodeRenderingTraversal::parent(node);
}
return node;
}
static bool showsHandCursor(Node* node, LocalFrame* frame)
{
if (!node || !node->renderer())
return false;
ECursor cursor = node->renderer()->style()->cursor();
return cursor == CURSOR_POINTER
|| (cursor == CURSOR_AUTO && frame->eventHandler().useHandCursor(node, node->isLink()));
}
Node* WebViewImpl::bestTapNode(const PlatformGestureEvent& tapEvent)
{
TRACE_EVENT0("input", "WebViewImpl::bestTapNode");
if (!m_page || !m_page->mainFrame())
return 0;
// FIXME: Rely on earlier hit test instead of hit testing again.
GestureEventWithHitTestResults targetedEvent =
m_page->mainFrame()->eventHandler().targetGestureEvent(tapEvent, true);
Node* bestTouchNode = targetedEvent.hitTestResult().targetNode();
// We might hit something like an image map that has no renderer on it
// Walk up the tree until we have a node with an attached renderer
// FIXME: This wants to walk composed tree with NodeRenderingTraversal::parent().
while (bestTouchNode && !bestTouchNode->renderer())
bestTouchNode = NodeRenderingTraversal::parent(bestTouchNode);
Node* cursorDefiningAncestor =
findCursorDefiningAncestor(bestTouchNode, m_page->mainFrame());
// We show a highlight on tap only when the current node shows a hand cursor
if (!cursorDefiningAncestor || !showsHandCursor(cursorDefiningAncestor, m_page->mainFrame())) {
return 0;
}
// We should pick the largest enclosing node with hand cursor set. We do this by first jumping
// up to cursorDefiningAncestor (which is already known to have hand cursor set). Then we locate
// the next cursor-defining ancestor up in the the tree and repeat the jumps as long as the node
// has hand cursor set.
do {
bestTouchNode = cursorDefiningAncestor;
cursorDefiningAncestor = findCursorDefiningAncestor(NodeRenderingTraversal::parent(bestTouchNode),
m_page->mainFrame());
} while (cursorDefiningAncestor && showsHandCursor(cursorDefiningAncestor, m_page->mainFrame()));
return bestTouchNode;
}
void WebViewImpl::enableTapHighlightAtPoint(const PlatformGestureEvent& tapEvent)
{
Node* touchNode = bestTapNode(tapEvent);
Vector<RawPtr<Node> > highlightNodes;
highlightNodes.append(touchNode);
enableTapHighlights(highlightNodes);
}
void WebViewImpl::enableTapHighlights(Vector<RawPtr<Node> >& highlightNodes)
{
if (highlightNodes.isEmpty())
return;
// Always clear any existing highlight when this is invoked, even if we
// don't get a new target to highlight.
m_linkHighlights.clear();
// LinkHighlight reads out layout and compositing state, so we need to make sure that's all up to date.
layout();
for (size_t i = 0; i < highlightNodes.size(); ++i) {
Node* node = highlightNodes[i];
if (!node || !node->renderer())
continue;
Color highlightColor = node->renderer()->style()->tapHighlightColor();
// Safari documentation for -webkit-tap-highlight-color says if the specified color has 0 alpha,
// then tap highlighting is disabled.
// http://developer.apple.com/library/safari/#documentation/appleapplications/reference/safaricssref/articles/standardcssproperties.html
if (!highlightColor.alpha())
continue;
m_linkHighlights.append(LinkHighlight::create(node, this));
}
}
bool WebViewImpl::keyEventDefault(const WebKeyboardEvent& event)
{
LocalFrame* frame = focusedCoreFrame();
if (!frame)
return false;
switch (event.type) {
case WebInputEvent::Char:
if (event.windowsKeyCode == VKEY_SPACE) {
int keyCode = ((event.modifiers & WebInputEvent::ShiftKey) ? VKEY_PRIOR : VKEY_NEXT);
return scrollViewWithKeyboard(keyCode, event.modifiers);
}
break;
case WebInputEvent::RawKeyDown:
if (event.modifiers == WebInputEvent::ControlKey) {
switch (event.windowsKeyCode) {
// Match FF behavior in the sense that Ctrl+home/end are the only Ctrl
// key combinations which affect scrolling. Safari is buggy in the
// sense that it scrolls the page for all Ctrl+scrolling key
// combinations. For e.g. Ctrl+pgup/pgdn/up/down, etc.
case VKEY_HOME:
case VKEY_END:
break;
default:
return false;
}
}
if (!event.isSystemKey && !(event.modifiers & WebInputEvent::ShiftKey))
return scrollViewWithKeyboard(event.windowsKeyCode, event.modifiers);
break;
default:
break;
}
return false;
}
bool WebViewImpl::scrollViewWithKeyboard(int keyCode, int modifiers)
{
ScrollDirection scrollDirection;
ScrollGranularity scrollGranularity;
if (!mapKeyCodeForScroll(keyCode, &scrollDirection, &scrollGranularity))
return false;
if (LocalFrame* frame = focusedCoreFrame())
return frame->eventHandler().bubblingScroll(scrollDirection, scrollGranularity);
return false;
}
bool WebViewImpl::mapKeyCodeForScroll(
int keyCode,
ScrollDirection* scrollDirection,
ScrollGranularity* scrollGranularity)
{
switch (keyCode) {
case VKEY_LEFT:
*scrollDirection = ScrollLeft;
*scrollGranularity = ScrollByLine;
break;
case VKEY_RIGHT:
*scrollDirection = ScrollRight;
*scrollGranularity = ScrollByLine;
break;
case VKEY_UP:
*scrollDirection = ScrollUp;
*scrollGranularity = ScrollByLine;
break;
case VKEY_DOWN:
*scrollDirection = ScrollDown;
*scrollGranularity = ScrollByLine;
break;
case VKEY_HOME:
*scrollDirection = ScrollUp;
*scrollGranularity = ScrollByDocument;
break;
case VKEY_END:
*scrollDirection = ScrollDown;
*scrollGranularity = ScrollByDocument;
break;
case VKEY_PRIOR: // page up
*scrollDirection = ScrollUp;
*scrollGranularity = ScrollByPage;
break;
case VKEY_NEXT: // page down
*scrollDirection = ScrollDown;
*scrollGranularity = ScrollByPage;
break;
default:
return false;
}
return true;
}
LocalFrame* WebViewImpl::focusedCoreFrame() const
{
return m_page ? m_page->focusController().focusedOrMainFrame() : 0;
}
WebViewImpl* WebViewImpl::fromPage(Page* page)
{
if (!page)
return 0;
return static_cast<WebViewImpl*>(page->chrome().client().webView());
}
// WebWidget ------------------------------------------------------------------
void WebViewImpl::close()
{
if (m_page) {
// Initiate shutdown for the entire frameset. This will cause a lot of
// notifications to be sent.
m_page->willBeDestroyed();
m_page.clear();
}
// Reset the delegate to prevent notifications being sent as we're being
// deleted.
m_client = 0;
deref(); // Balances ref() acquired in WebView::create
}
void WebViewImpl::willStartLiveResize()
{
// FIXME(sky): Remove
}
WebSize WebViewImpl::size()
{
return m_size;
}
WebLocalFrameImpl* WebViewImpl::localFrameRootTemporary() const
{
// FIXME(sky): remove
return WebLocalFrameImpl::fromFrame(page()->mainFrame());
}
void WebViewImpl::performResize()
{
updateMainFrameLayoutSize();
// If the virtual viewport pinch mode is enabled, the main frame will be resized
// after layout so it can be sized to the contentsSize.
if (localFrameRootTemporary()->frameView())
localFrameRootTemporary()->frameView()->resize(m_size);
}
void WebViewImpl::resize(const WebSize& newSize)
{
if (m_size == newSize)
return;
FrameView* view = localFrameRootTemporary()->frameView();
if (!view)
return;
m_size = newSize;
performResize();
sendResizeEventAndRepaint();
}
void WebViewImpl::willEndLiveResize()
{
// FIXME(sky): Remove
}
void WebViewImpl::beginFrame(const WebBeginFrameArgs& frameTime)
{
TRACE_EVENT0("blink", "WebViewImpl::beginFrame");
WebBeginFrameArgs validFrameTime(frameTime);
if (!validFrameTime.lastFrameTimeMonotonic)
validFrameTime.lastFrameTimeMonotonic = monotonicallyIncreasingTime();
// Create synthetic wheel events as necessary for fling.
if (m_gestureAnimation) {
if (m_gestureAnimation->animate(validFrameTime.lastFrameTimeMonotonic))
scheduleAnimation();
else {
endActiveFlingAnimation();
PlatformGestureEvent endScrollEvent(PlatformEvent::GestureScrollEnd,
m_positionOnFlingStart, m_globalPositionOnFlingStart,
IntSize(), 0, false, false, false, false,
0, 0, 0, 0);
mainFrameImpl()->frame()->eventHandler().handleGestureScrollEnd(endScrollEvent);
}
}
WTF_LOG(ScriptedAnimationController, "WebViewImpl::beginFrame: page = %d", !m_page ? 0 : 1);
if (!m_page)
return;
PageWidgetDelegate::animate(m_page.get(), validFrameTime.lastFrameTimeMonotonic);
if (m_continuousPaintingEnabled) {
ContinuousPainter::setNeedsDisplayRecursive(m_rootGraphicsLayer);
m_client->scheduleAnimation();
}
}
void WebViewImpl::didCommitFrameToCompositor()
{
}
void WebViewImpl::layout()
{
TRACE_EVENT0("blink", "WebViewImpl::layout");
if (!localFrameRootTemporary())
return;
PageWidgetDelegate::layout(m_page.get(), localFrameRootTemporary()->frame());
updateLayerTreeBackgroundColor();
for (size_t i = 0; i < m_linkHighlights.size(); ++i)
m_linkHighlights[i]->updateGeometry();
}
void WebViewImpl::paint(WebCanvas* canvas, const WebRect& rect)
{
// This should only be used when compositing is not being used for this
// WebView, and it is painting into the recording of its parent.
ASSERT(!isAcceleratedCompositingActive());
double paintStart = currentTime();
PageWidgetDelegate::paint(m_page.get(), canvas, rect, isTransparent() ? PageWidgetDelegate::Translucent : PageWidgetDelegate::Opaque);
double paintEnd = currentTime();
double pixelsPerSec = (rect.width * rect.height) / (paintEnd - paintStart);
Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintDurationMS", (paintEnd - paintStart) * 1000, 0, 120, 30);
Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintMegapixPerSecond", pixelsPerSec / 1000000, 10, 210, 30);
}
#if OS(ANDROID)
void WebViewImpl::paintCompositedDeprecated(WebCanvas* canvas, const WebRect& rect)
{
// Note: This method exists on OS(ANDROID) and will hopefully be
// removed once the link disambiguation feature renders using
// the compositor.
ASSERT(isAcceleratedCompositingActive());
FrameView* view = page()->mainFrame()->view();
PaintBehavior oldPaintBehavior = view->paintBehavior();
view->setPaintBehavior(oldPaintBehavior | PaintBehaviorFlattenCompositingLayers);
PageWidgetDelegate::paint(m_page.get(), canvas, rect, isTransparent() ? PageWidgetDelegate::Translucent : PageWidgetDelegate::Opaque);
view->setPaintBehavior(oldPaintBehavior);
}
#endif
void WebViewImpl::compositeAndReadbackAsync(WebCompositeAndReadbackAsyncCallback* callback)
{
ASSERT(isAcceleratedCompositingActive());
m_layerTreeView->compositeAndReadbackAsync(callback);
}
bool WebViewImpl::isTrackingRepaints() const
{
if (!page())
return false;
FrameView* view = page()->mainFrame()->view();
return view->isTrackingPaintInvalidations();
}
void WebViewImpl::themeChanged()
{
if (!page())
return;
FrameView* view = page()->mainFrame()->view();
WebRect damagedRect(0, 0, m_size.width, m_size.height);
view->invalidateRect(damagedRect);
}
void WebViewImpl::clearCompositedSelectionBounds()
{
if (m_layerTreeView)
m_layerTreeView->clearSelection();
}
bool WebViewImpl::hasHorizontalScrollbar()
{
// FIXME(sky): Remove
return false;
}
bool WebViewImpl::hasVerticalScrollbar()
{
// FIXME(sky): Remove
return false;
}
const WebInputEvent* WebViewImpl::m_currentInputEvent = 0;
// FIXME: autogenerate this kind of code, and use it throughout Blink rather than
// the one-offs for subsets of these values.
static String inputTypeToName(WebInputEvent::Type type)
{
switch (type) {
case WebInputEvent::MouseDown:
return EventTypeNames::mousedown;
case WebInputEvent::MouseUp:
return EventTypeNames::mouseup;
case WebInputEvent::MouseMove:
return EventTypeNames::mousemove;
case WebInputEvent::MouseEnter:
return EventTypeNames::mouseenter;
case WebInputEvent::MouseLeave:
return EventTypeNames::mouseleave;
case WebInputEvent::MouseWheel:
return EventTypeNames::mousewheel;
case WebInputEvent::KeyDown:
return EventTypeNames::keydown;
case WebInputEvent::KeyUp:
return EventTypeNames::keyup;
case WebInputEvent::GestureScrollBegin:
return EventTypeNames::gesturescrollstart;
case WebInputEvent::GestureScrollEnd:
return EventTypeNames::gesturescrollend;
case WebInputEvent::GestureScrollUpdate:
return EventTypeNames::gesturescrollupdate;
case WebInputEvent::GestureTapDown:
return EventTypeNames::gesturetapdown;
case WebInputEvent::GestureShowPress:
return EventTypeNames::gestureshowpress;
case WebInputEvent::GestureTap:
return EventTypeNames::gesturetap;
case WebInputEvent::GestureTapUnconfirmed:
return EventTypeNames::gesturetapunconfirmed;
case WebInputEvent::TouchStart:
return EventTypeNames::touchstart;
case WebInputEvent::TouchMove:
return EventTypeNames::touchmove;
case WebInputEvent::TouchEnd:
return EventTypeNames::touchend;
case WebInputEvent::TouchCancel:
return EventTypeNames::touchcancel;
default:
return String("unknown");
}
}
bool WebViewImpl::handleInputEvent(const WebInputEvent& inputEvent)
{
TRACE_EVENT1("input", "WebViewImpl::handleInputEvent", "type", inputTypeToName(inputEvent.type).ascii().data());
// If we've started a drag and drop operation, ignore input events until
// we're done.
if (m_doingDragAndDrop)
return true;
// Report the event to be NOT processed by WebKit, so that the browser can handle it appropriately.
if (m_ignoreInputEvents)
return false;
TemporaryChange<const WebInputEvent*> currentEventChange(m_currentInputEvent, &inputEvent);
if (m_mouseCaptureNode && WebInputEvent::isMouseEventType(inputEvent.type)) {
TRACE_EVENT1("input", "captured mouse event", "type", inputEvent.type);
// Save m_mouseCaptureNode since mouseCaptureLost() will clear it.
RefPtr<Node> node = m_mouseCaptureNode;
// Not all platforms call mouseCaptureLost() directly.
if (inputEvent.type == WebInputEvent::MouseUp)
mouseCaptureLost();
OwnPtr<UserGestureIndicator> gestureIndicator;
AtomicString eventType;
switch (inputEvent.type) {
case WebInputEvent::MouseMove:
eventType = EventTypeNames::mousemove;
break;
case WebInputEvent::MouseLeave:
eventType = EventTypeNames::mouseout;
break;
case WebInputEvent::MouseDown:
eventType = EventTypeNames::mousedown;
gestureIndicator = adoptPtr(new UserGestureIndicator(DefinitelyProcessingNewUserGesture));
m_mouseCaptureGestureToken = gestureIndicator->currentToken();
break;
case WebInputEvent::MouseUp:
eventType = EventTypeNames::mouseup;
gestureIndicator = adoptPtr(new UserGestureIndicator(m_mouseCaptureGestureToken.release()));
break;
default:
ASSERT_NOT_REACHED();
}
node->dispatchMouseEvent(
PlatformMouseEventBuilder(mainFrameImpl()->frameView(), static_cast<const WebMouseEvent&>(inputEvent)),
eventType, static_cast<const WebMouseEvent&>(inputEvent).clickCount);
return true;
}
return PageWidgetDelegate::handleInputEvent(m_page.get(), *this, inputEvent);
}
void WebViewImpl::setCursorVisibilityState(bool isVisible)
{
if (m_page)
m_page->setIsCursorVisible(isVisible);
}
void WebViewImpl::mouseCaptureLost()
{
TRACE_EVENT_ASYNC_END0("input", "capturing mouse", this);
m_mouseCaptureNode = nullptr;
}
void WebViewImpl::setFocus(bool enable)
{
m_page->focusController().setFocused(enable);
if (enable) {
m_page->focusController().setActive(true);
RefPtr<LocalFrame> focusedFrame = m_page->focusController().focusedFrame();
if (focusedFrame) {
LocalFrame* localFrame = focusedFrame.get();
Element* element = localFrame->document()->focusedElement();
if (element && localFrame->selection().selection().isNone()) {
// If the selection was cleared while the WebView was not
// focused, then the focus element shows with a focus ring but
// no caret and does respond to keyboard inputs.
if (element->isContentEditable()) {
// updateFocusAppearance() selects all the text of
// contentseditable DIVs. So we set the selection explicitly
// instead. Note that this has the side effect of moving the
// caret back to the beginning of the text.
Position position(element, 0, Position::PositionIsOffsetInAnchor);
localFrame->selection().setSelection(VisibleSelection(position, SEL_DEFAULT_AFFINITY));
}
}
}
m_imeAcceptEvents = true;
} else {
// Clear focus on the currently focused frame if any.
if (!m_page)
return;
RefPtr<LocalFrame> focusedFrame = m_page->focusController().focusedFrame();
if (focusedFrame) {
// Finish an ongoing composition to delete the composition node.
if (focusedFrame->inputMethodController().hasComposition()) {
focusedFrame->inputMethodController().confirmComposition();
}
m_imeAcceptEvents = false;
}
}
}
bool WebViewImpl::setComposition(
const WebString& text,
const WebVector<WebCompositionUnderline>& underlines,
int selectionStart,
int selectionEnd)
{
LocalFrame* focused = focusedCoreFrame();
if (!focused || !m_imeAcceptEvents)
return false;
// The input focus has been moved to another WebWidget object.
// We should use this |editor| object only to complete the ongoing
// composition.
InputMethodController& inputMethodController = focused->inputMethodController();
if (!focused->editor().canEdit() && !inputMethodController.hasComposition())
return false;
// We should verify the parent node of this IME composition node are
// editable because JavaScript may delete a parent node of the composition
// node. In this case, WebKit crashes while deleting texts from the parent
// node, which doesn't exist any longer.
RefPtr<Range> range = inputMethodController.compositionRange();
if (range) {
Node* node = range->startContainer();
if (!node || !node->isContentEditable())
return false;
}
// If we're not going to fire a keypress event, then the keydown event was
// canceled. In that case, cancel any existing composition.
if (text.isEmpty() || m_suppressNextKeypressEvent) {
// A browser process sent an IPC message which does not contain a valid
// string, which means an ongoing composition has been canceled.
// If the ongoing composition has been canceled, replace the ongoing
// composition string with an empty string and complete it.
String emptyString;
Vector<CompositionUnderline> emptyUnderlines;
inputMethodController.setComposition(emptyString, emptyUnderlines, 0, 0);
return text.isEmpty();
}
// When the range of composition underlines overlap with the range between
// selectionStart and selectionEnd, WebKit somehow won't paint the selection
// at all (see InlineTextBox::paint() function in InlineTextBox.cpp).
// But the selection range actually takes effect.
inputMethodController.setComposition(String(text),
CompositionUnderlineVectorBuilder(underlines),
selectionStart, selectionEnd);
return inputMethodController.hasComposition();
}
bool WebViewImpl::confirmComposition()
{
return confirmComposition(DoNotKeepSelection);
}
bool WebViewImpl::confirmComposition(ConfirmCompositionBehavior selectionBehavior)
{
return confirmComposition(WebString(), selectionBehavior);
}
bool WebViewImpl::confirmComposition(const WebString& text)
{
return confirmComposition(text, DoNotKeepSelection);
}
bool WebViewImpl::confirmComposition(const WebString& text, ConfirmCompositionBehavior selectionBehavior)
{
LocalFrame* focused = focusedCoreFrame();
if (!focused || !m_imeAcceptEvents)
return false;
return focused->inputMethodController().confirmCompositionOrInsertText(text, selectionBehavior == KeepSelection ? InputMethodController::KeepSelection : InputMethodController::DoNotKeepSelection);
}
bool WebViewImpl::compositionRange(size_t* location, size_t* length)
{
LocalFrame* focused = focusedCoreFrame();
if (!focused || !m_imeAcceptEvents)
return false;
RefPtr<Range> range = focused->inputMethodController().compositionRange();
if (!range)
return false;
Element* editable = focused->selection().rootEditableElementOrDocumentElement();
ASSERT(editable);
PlainTextRange plainTextRange(PlainTextRange::create(*editable, *range.get()));
if (plainTextRange.isNull())
return false;
*location = plainTextRange.start();
*length = plainTextRange.length();
return true;
}
WebTextInputInfo WebViewImpl::textInputInfo()
{
WebTextInputInfo info;
LocalFrame* focused = focusedCoreFrame();
if (!focused)
return info;
FrameSelection& selection = focused->selection();
Element* element = selection.selection().rootEditableElement();
if (!element)
return info;
info.inputMode = inputModeOfFocusedElement();
info.type = textInputType();
info.flags = textInputFlags();
if (info.type == WebTextInputTypeNone)
return info;
if (!focused->editor().canEdit())
return info;
// Emits an object replacement character for each replaced element so that
// it is exposed to IME and thus could be deleted by IME on android.
info.value = plainText(rangeOfContents(element).get(), TextIteratorEmitsObjectReplacementCharacter);
if (info.value.isEmpty())
return info;
if (RefPtr<Range> range = selection.selection().firstRange()) {
PlainTextRange plainTextRange(PlainTextRange::create(*element, *range.get()));
if (plainTextRange.isNotNull()) {
info.selectionStart = plainTextRange.start();
info.selectionEnd = plainTextRange.end();
}
}
if (RefPtr<Range> range = focused->inputMethodController().compositionRange()) {
PlainTextRange plainTextRange(PlainTextRange::create(*element, *range.get()));
if (plainTextRange.isNotNull()) {
info.compositionStart = plainTextRange.start();
info.compositionEnd = plainTextRange.end();
}
}
return info;
}
WebTextInputType WebViewImpl::textInputType()
{
Element* element = focusedElement();
if (!element)
return WebTextInputTypeNone;
if (element->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable))
return WebTextInputTypeContentEditable;
return WebTextInputTypeNone;
}
int WebViewImpl::textInputFlags()
{
Element* element = focusedElement();
if (!element)
return WebTextInputFlagNone;
int flags = 0;
const AtomicString& autocomplete = element->getAttribute("autocomplete");
if (autocomplete == "on")
flags |= WebTextInputFlagAutocompleteOn;
else if (autocomplete == "off")
flags |= WebTextInputFlagAutocompleteOff;
const AtomicString& autocorrect = element->getAttribute("autocorrect");
if (autocorrect == "on")
flags |= WebTextInputFlagAutocorrectOn;
else if (autocorrect == "off")
flags |= WebTextInputFlagAutocorrectOff;
const AtomicString& spellcheck = element->getAttribute("spellcheck");
if (spellcheck == "on")
flags |= WebTextInputFlagSpellcheckOn;
else if (spellcheck == "off")
flags |= WebTextInputFlagSpellcheckOff;
return flags;
}
WebString WebViewImpl::inputModeOfFocusedElement()
{
return WebString();
}
bool WebViewImpl::selectionBounds(WebRect& anchor, WebRect& focus) const
{
const LocalFrame* localFrame = focusedCoreFrame();
if (!localFrame)
return false;
FrameSelection& selection = localFrame->selection();
if (selection.isCaret()) {
anchor = focus = selection.absoluteCaretBounds();
} else {
RefPtr<Range> selectedRange = selection.toNormalizedRange();
if (!selectedRange)
return false;
RefPtr<Range> range(Range::create(selectedRange->startContainer()->document(),
selectedRange->startContainer(),
selectedRange->startOffset(),
selectedRange->startContainer(),
selectedRange->startOffset()));
anchor = localFrame->editor().firstRectForRange(range.get());
range = Range::create(selectedRange->endContainer()->document(),
selectedRange->endContainer(),
selectedRange->endOffset(),
selectedRange->endContainer(),
selectedRange->endOffset());
focus = localFrame->editor().firstRectForRange(range.get());
}
IntRect scaledAnchor(localFrame->view()->contentsToWindow(anchor));
IntRect scaledFocus(localFrame->view()->contentsToWindow(focus));
anchor = scaledAnchor;
focus = scaledFocus;
if (!selection.selection().isBaseFirst())
std::swap(anchor, focus);
return true;
}
InputMethodContext* WebViewImpl::inputMethodContext()
{
if (!m_imeAcceptEvents)
return 0;
LocalFrame* focusedFrame = focusedCoreFrame();
if (!focusedFrame)
return 0;
Element* target = focusedFrame->document()->focusedElement();
if (target && target->hasInputMethodContext())
return &target->inputMethodContext();
return 0;
}
void WebViewImpl::didShowCandidateWindow()
{
if (InputMethodContext* context = inputMethodContext())
context->dispatchCandidateWindowShowEvent();
}
void WebViewImpl::didUpdateCandidateWindow()
{
if (InputMethodContext* context = inputMethodContext())
context->dispatchCandidateWindowUpdateEvent();
}
void WebViewImpl::didHideCandidateWindow()
{
if (InputMethodContext* context = inputMethodContext())
context->dispatchCandidateWindowHideEvent();
}
bool WebViewImpl::selectionTextDirection(WebTextDirection& start, WebTextDirection& end) const
{
const LocalFrame* frame = focusedCoreFrame();
if (!frame)
return false;
FrameSelection& selection = frame->selection();
if (!selection.toNormalizedRange())
return false;
start = toWebTextDirection(selection.start().primaryDirection());
end = toWebTextDirection(selection.end().primaryDirection());
return true;
}
bool WebViewImpl::isSelectionAnchorFirst() const
{
if (const LocalFrame* frame = focusedCoreFrame())
return frame->selection().selection().isBaseFirst();
return false;
}
WebVector<WebCompositionUnderline> WebViewImpl::compositionUnderlines() const
{
const LocalFrame* focused = focusedCoreFrame();
if (!focused)
return WebVector<WebCompositionUnderline>();
const Vector<CompositionUnderline>& underlines = focused->inputMethodController().customCompositionUnderlines();
WebVector<WebCompositionUnderline> results(underlines.size());
for (size_t index = 0; index < underlines.size(); ++index) {
CompositionUnderline underline = underlines[index];
results[index] = WebCompositionUnderline(underline.startOffset, underline.endOffset, static_cast<WebColor>(underline.color.rgb()), underline.thick, static_cast<WebColor>(underline.backgroundColor.rgb()));
}
return results;
}
WebColor WebViewImpl::backgroundColor() const
{
if (isTransparent())
return Color::transparent;
if (!m_page)
return m_baseBackgroundColor;
if (!m_page->mainFrame())
return m_baseBackgroundColor;
FrameView* view = m_page->mainFrame()->view();
return view->documentBackgroundColor().rgb();
}
bool WebViewImpl::caretOrSelectionRange(size_t* location, size_t* length)
{
const LocalFrame* focused = focusedCoreFrame();
if (!focused)
return false;
PlainTextRange selectionOffsets = focused->inputMethodController().getSelectionOffsets();
if (selectionOffsets.isNull())
return false;
*location = selectionOffsets.start();
*length = selectionOffsets.length();
return true;
}
void WebViewImpl::setTextDirection(WebTextDirection direction)
{
// The Editor::setBaseWritingDirection() function checks if we can change
// the text direction of the selected node and updates its DOM "dir"
// attribute and its CSS "direction" property.
// So, we just call the function as Safari does.
const LocalFrame* focused = focusedCoreFrame();
if (!focused)
return;
Editor& editor = focused->editor();
if (!editor.canEdit())
return;
switch (direction) {
case WebTextDirectionDefault:
editor.setBaseWritingDirection(NaturalWritingDirection);
break;
case WebTextDirectionLeftToRight:
editor.setBaseWritingDirection(LeftToRightWritingDirection);
break;
case WebTextDirectionRightToLeft:
editor.setBaseWritingDirection(RightToLeftWritingDirection);
break;
default:
notImplemented();
break;
}
}
bool WebViewImpl::isAcceleratedCompositingActive() const
{
return m_isAcceleratedCompositingActive;
}
void WebViewImpl::willCloseLayerTreeView()
{
setIsAcceleratedCompositingActive(false);
m_layerTreeView = 0;
m_layerTreeViewClosed = true;
}
// WebView --------------------------------------------------------------------
WebSettingsImpl* WebViewImpl::settingsImpl()
{
if (!m_webSettings)
m_webSettings = adoptPtr(new WebSettingsImpl(&m_page->settings()));
ASSERT(m_webSettings);
return m_webSettings.get();
}
WebSettings* WebViewImpl::settings()
{
return settingsImpl();
}
WebString WebViewImpl::pageEncoding() const
{
// FIXME(sky): remove.
if (!m_page)
return WebString();
return m_page->mainFrame()->document()->encodingName();
}
void WebViewImpl::setPageEncoding(const WebString& encodingName)
{
// FIXME(sky): remove
}
WebFrame* WebViewImpl::mainFrame()
{
return WebFrame::fromFrame(m_page ? m_page->mainFrame() : 0);
}
WebFrame* WebViewImpl::focusedFrame()
{
return WebFrame::fromFrame(focusedCoreFrame());
}
void WebViewImpl::injectModule(const WebString& path)
{
RefPtr<Document> document = m_page->mainFrame()->document();
RefPtr<HTMLImportElement> import = HTMLImportElement::create(*document);
import->setAttribute(HTMLNames::srcAttr, path);
if (!document->documentElement())
return;
document->documentElement()->appendChild(import.release());
}
void WebViewImpl::setFocusedFrame(WebFrame* frame)
{
if (!frame) {
// Clears the focused frame if any.
LocalFrame* focusedFrame = focusedCoreFrame();
if (focusedFrame)
focusedFrame->selection().setFocused(false);
return;
}
LocalFrame* coreFrame = toWebLocalFrameImpl(frame)->frame();
coreFrame->page()->focusController().setFocusedFrame(coreFrame);
}
void WebViewImpl::setInitialFocus(bool reverse)
{
if (!m_page)
return;
LocalFrame* frame = page()->focusController().focusedOrMainFrame();
if (Document* document = frame->document())
document->setFocusedElement(nullptr);
page()->focusController().setInitialFocus(reverse ? FocusTypeBackward : FocusTypeForward);
}
void WebViewImpl::clearFocusedElement()
{
RefPtr<LocalFrame> localFrame = focusedCoreFrame();
if (!localFrame)
return;
RefPtr<Document> document = localFrame->document();
if (!document)
return;
RefPtr<Element> oldFocusedElement = document->focusedElement();
// Clear the focused node.
document->setFocusedElement(nullptr);
if (!oldFocusedElement)
return;
// If a text field has focus, we need to make sure the selection controller
// knows to remove selection from it. Otherwise, the text field is still
// processing keyboard events even though focus has been moved to the page and
// keystrokes get eaten as a result.
if (oldFocusedElement->isContentEditable())
localFrame->selection().clear();
}
void WebViewImpl::scrollFocusedNodeIntoRect(const WebRect& rect)
{
LocalFrame* frame = page()->mainFrame();
Element* element = focusedElement();
if (!frame || !frame->view() || !element)
return;
float scale;
IntPoint scroll;
bool needAnimation;
computeScaleAndScrollForFocusedNode(element, scale, scroll, needAnimation);
}
void WebViewImpl::computeScaleAndScrollForFocusedNode(Node* focusedNode, float& newScale, IntPoint& newScroll, bool& needAnimation)
{
//FIXME(sky)
}
void WebViewImpl::advanceFocus(bool reverse)
{
page()->focusController().advanceFocus(reverse ? FocusTypeBackward : FocusTypeForward);
}
IntPoint WebViewImpl::clampOffsetAtScale(const IntPoint& offset, float scale)
{
FrameView* view = mainFrameImpl()->frameView();
if (!view)
return offset;
return view->clampOffsetAtScale(offset, scale);
}
void WebViewImpl::setMainFrameScrollOffset(const WebPoint& origin)
{
updateMainFrameScrollPosition(origin, false);
}
float WebViewImpl::deviceScaleFactor() const
{
if (!page())
return 1;
return page()->deviceScaleFactor();
}
void WebViewImpl::setDeviceScaleFactor(float scaleFactor)
{
if (!page())
return;
page()->setDeviceScaleFactor(scaleFactor);
if (m_layerTreeView)
updateLayerTreeDeviceScaleFactor();
}
void WebViewImpl::updateMainFrameLayoutSize()
{
if (m_fixedLayoutSizeLock || !mainFrameImpl())
return;
RefPtr<FrameView> view = mainFrameImpl()->frameView();
if (!view)
return;
WebSize layoutSize = m_size;
if (page()->settings().forceZeroLayoutHeight())
layoutSize.height = 0;
view->setLayoutSize(layoutSize);
}
IntSize WebViewImpl::contentsSize() const
{
RenderView* root = page()->mainFrame()->contentRenderer();
if (!root)
return IntSize();
return root->documentRect().size();
}
WebSize WebViewImpl::contentsPreferredMinimumSize()
{
Document* document = m_page->mainFrame()->document();
if (!document || !document->renderView() || !document->documentElement())
return WebSize();
layout();
FontCachePurgePreventer fontCachePurgePreventer; // Required by minPreferredLogicalWidth().
return IntSize(document->renderView()->minPreferredLogicalWidth(), document->documentElement()->scrollHeight());
}
void WebViewImpl::resetScrollAndScaleState()
{
// FIXME(sky): Remove
}
void WebViewImpl::setFixedLayoutSize(const WebSize& layoutSize)
{
if (!page())
return;
LocalFrame* frame = page()->mainFrame();
if (!frame)
return;
RefPtr<FrameView> view = frame->view();
if (!view)
return;
m_fixedLayoutSizeLock = layoutSize.width || layoutSize.height;
if (m_fixedLayoutSizeLock)
view->setLayoutSize(layoutSize);
else
updateMainFrameLayoutSize();
}
WebHitTestResult WebViewImpl::hitTestResultAt(const WebPoint& point)
{
return coreHitTestResultAt(point);
}
HitTestResult WebViewImpl::coreHitTestResultAt(const WebPoint& point)
{
IntPoint scaledPoint = point;
return hitTestResultForWindowPos(scaledPoint);
}
void WebViewImpl::copyImageAt(const WebPoint& point)
{
if (!m_page)
return;
HitTestResult result = hitTestResultForWindowPos(point);
if (result.absoluteImageURLIncludingCanvasDataURL().isEmpty()) {
// There isn't actually an image at these coordinates. Might be because
// the window scrolled while the context menu was open or because the page
// changed itself between when we thought there was an image here and when
// we actually tried to retreive the image.
//
// FIXME: implement a cache of the most recent HitTestResult to avoid having
// to do two hit tests.
return;
}
m_page->mainFrame()->editor().copyImage(result);
}
void WebViewImpl::saveImageAt(const WebPoint& point)
{
if (!m_page)
return;
KURL url = hitTestResultForWindowPos(point).absoluteImageURLIncludingCanvasDataURL();
if (url.isEmpty())
return;
ResourceRequest request(url);
request.setRequestContext(WebURLRequest::RequestContextDownload);
m_page->mainFrame()->loaderClient()->loadURLExternally(
request, NavigationPolicyDownloadTo, WebString());
}
void WebViewImpl::dragSourceSystemDragEnded()
{
// FIXME(sky): Remove
// It's possible for us to get this callback while not doing a drag if
// it's from a previous page that got unloaded.
if (m_doingDragAndDrop)
m_doingDragAndDrop = false;
}
void WebViewImpl::spellingMarkers(WebVector<uint32_t>* markers)
{
Vector<uint32_t> result;
LocalFrame* frame = m_page->mainFrame();
const DocumentMarkerVector& documentMarkers = frame->document()->markers().markers();
for (size_t i = 0; i < documentMarkers.size(); ++i)
result.append(documentMarkers[i]->hash());
markers->assign(result);
}
void WebViewImpl::removeSpellingMarkersUnderWords(const WebVector<WebString>& words)
{
Vector<String> convertedWords;
convertedWords.append(words.data(), words.size());
LocalFrame* frame = m_page->mainFrame();
frame->removeSpellingMarkersUnderWords(convertedWords);
}
void WebViewImpl::sendResizeEventAndRepaint()
{
// FIXME: This is wrong. The FrameView is responsible sending a resizeEvent
// as part of layout. Layout is also responsible for sending invalidations
// to the embedder. This method and all callers may be wrong. -- eseidel.
if (localFrameRootTemporary()->frameView()) {
// Enqueues the resize event.
localFrameRootTemporary()->frame()->document()->enqueueResizeEvent();
}
if (!isAcceleratedCompositingActive()) {
WebRect damagedRect(0, 0, m_size.width, m_size.height);
m_client->didInvalidateRect(damagedRect);
}
}
void WebViewImpl::setCompositorDeviceScaleFactorOverride(float deviceScaleFactor)
{
if (m_compositorDeviceScaleFactorOverride == deviceScaleFactor)
return;
m_compositorDeviceScaleFactorOverride = deviceScaleFactor;
if (page() && m_layerTreeView)
updateLayerTreeDeviceScaleFactor();
}
void WebViewImpl::setRootLayerTransform(const WebSize& rootLayerOffset, float rootLayerScale)
{
if (m_rootLayerScale == rootLayerScale && m_rootLayerOffset == rootLayerOffset)
return;
m_rootLayerScale = rootLayerScale;
m_rootLayerOffset = rootLayerOffset;
if (mainFrameImpl())
mainFrameImpl()->setInputEventsTransformForEmulation(m_rootLayerOffset, m_rootLayerScale);
updateRootLayerTransform();
}
void WebViewImpl::extractSmartClipData(WebRect rect, WebString& clipText, WebString& clipHtml, WebRect& clipRect)
{
}
void WebViewImpl::setIsTransparent(bool isTransparent)
{
// Set any existing frames to be transparent.
m_page->mainFrame()->view()->setTransparent(isTransparent);
// Future frames check this to know whether to be transparent.
m_isTransparent = isTransparent;
}
bool WebViewImpl::isTransparent() const
{
return m_isTransparent;
}
void WebViewImpl::setBaseBackgroundColor(WebColor color)
{
layout();
if (m_baseBackgroundColor == color)
return;
m_baseBackgroundColor = color;
if (m_page->mainFrame())
m_page->mainFrame()->view()->setBaseBackgroundColor(color);
updateLayerTreeBackgroundColor();
}
void WebViewImpl::setIsActive(bool active)
{
if (page())
page()->focusController().setActive(active);
}
bool WebViewImpl::isActive() const
{
return page() ? page()->focusController().isActive() : false;
}
void WebViewImpl::setDomainRelaxationForbidden(bool forbidden, const WebString& scheme)
{
SchemeRegistry::setDomainRelaxationForbiddenForURLScheme(forbidden, String(scheme));
}
void WebViewImpl::setOpenedByDOM()
{
m_page->setOpenedByDOM();
}
void WebViewImpl::setSelectionColors(unsigned activeBackgroundColor,
unsigned activeForegroundColor,
unsigned inactiveBackgroundColor,
unsigned inactiveForegroundColor) {
}
void WebViewImpl::didCommitLoad(bool isNewNavigation, bool isNavigationWithinPage)
{
// Make sure link highlight from previous page is cleared.
m_linkHighlights.clear();
endActiveFlingAnimation();
m_userGestureObserved = false;
if (!isNavigationWithinPage)
UserGestureIndicator::clearProcessedUserGestureSinceLoad();
}
void WebViewImpl::didRemoveAllPendingStylesheet(WebLocalFrameImpl* webframe)
{
if (webframe != mainFrameImpl())
return;
// If we have no more stylesheets to load and we're past the body tag,
// we should have something to paint and should start as soon as possible.
// FIXME(sky): This logic is probably wrong now.
resumeTreeViewCommits();
}
void WebViewImpl::resumeTreeViewCommits()
{
if (m_layerTreeViewCommitsDeferred) {
if (m_layerTreeView)
m_layerTreeView->setDeferCommits(false);
m_layerTreeViewCommitsDeferred = false;
}
}
void WebViewImpl::layoutUpdated(WebLocalFrameImpl* webframe)
{
if (!m_client)
return;
// If we finished a layout while in deferred commit mode,
// that means it's time to start producing frames again so un-defer.
resumeTreeViewCommits();
m_client->didUpdateLayout();
}
void WebViewImpl::setIgnoreInputEvents(bool newValue)
{
ASSERT(m_ignoreInputEvents != newValue);
m_ignoreInputEvents = newValue;
}
void WebViewImpl::setBackgroundColorOverride(WebColor color)
{
m_backgroundColorOverride = color;
updateLayerTreeBackgroundColor();
}
void WebViewImpl::setOverlayLayer(GraphicsLayer* layer)
{
if (!m_rootGraphicsLayer)
return;
// FIXME(bokan): This path goes away after virtual viewport pinch is enabled everywhere.
if (!m_rootTransformLayer)
m_rootTransformLayer = m_page->mainFrame()->view()->renderView()->compositor()->ensureRootTransformLayer();
if (m_rootTransformLayer) {
if (layer->parent() != m_rootTransformLayer)
m_rootTransformLayer->addChild(layer);
}
}
Element* WebViewImpl::focusedElement() const
{
LocalFrame* frame = m_page->focusController().focusedFrame();
if (!frame)
return 0;
Document* document = frame->document();
if (!document)
return 0;
return document->focusedElement();
}
HitTestResult WebViewImpl::hitTestResultForWindowPos(const IntPoint& pos)
{
IntPoint docPoint(m_page->mainFrame()->view()->windowToContents(pos));
HitTestResult result = m_page->mainFrame()->eventHandler().hitTestResultAtPoint(docPoint, HitTestRequest::ReadOnly | HitTestRequest::Active);
return result;
}
void WebViewImpl::setTabsToLinks(bool enable)
{
m_tabsToLinks = enable;
}
bool WebViewImpl::tabsToLinks() const
{
return m_tabsToLinks;
}
void WebViewImpl::suppressInvalidations(bool enable)
{
m_client->suppressCompositorScheduling(enable);
}
void WebViewImpl::setRootGraphicsLayer(GraphicsLayer* layer)
{
suppressInvalidations(true);
m_rootGraphicsLayer = layer;
m_rootLayer = layer ? layer->platformLayer() : 0;
m_rootTransformLayer = 0;
setIsAcceleratedCompositingActive(layer != 0);
updateRootLayerTransform();
if (m_layerTreeView) {
if (m_rootLayer) {
m_layerTreeView->setRootLayer(*m_rootLayer);
// We register viewport layers here since there may not be a layer
// tree view prior to this point.
GraphicsLayer* rootScrollLayer = compositor()->scrollLayer();
ASSERT(rootScrollLayer);
WebLayer* pageScaleLayer = rootScrollLayer->parent() ? rootScrollLayer->parent()->platformLayer() : 0;
m_layerTreeView->registerViewportLayers(pageScaleLayer, rootScrollLayer->platformLayer(), 0);
} else {
m_layerTreeView->clearRootLayer();
m_layerTreeView->clearViewportLayers();
}
}
suppressInvalidations(false);
}
void WebViewImpl::scheduleCompositingLayerSync()
{
m_layerTreeView->setNeedsAnimate();
}
void WebViewImpl::invalidateRect(const IntRect& rect)
{
if (!m_isAcceleratedCompositingActive) {
m_client->didInvalidateRect(rect);
}
}
GraphicsLayerFactory* WebViewImpl::graphicsLayerFactory() const
{
return m_graphicsLayerFactory.get();
}
RenderLayerCompositor* WebViewImpl::compositor() const
{
if (!page() || !page()->mainFrame())
return 0;
if (!page()->mainFrame()->document() || !page()->mainFrame()->document()->renderView())
return 0;
return page()->mainFrame()->document()->renderView()->compositor();
}
void WebViewImpl::registerForAnimations(WebLayer* layer)
{
if (m_layerTreeView)
m_layerTreeView->registerForAnimations(layer);
}
GraphicsLayer* WebViewImpl::rootGraphicsLayer()
{
return m_rootGraphicsLayer;
}
void WebViewImpl::scheduleAnimation()
{
if (isAcceleratedCompositingActive()) {
ASSERT(m_layerTreeView);
m_layerTreeView->setNeedsAnimate();
return;
}
m_client->scheduleAnimation();
}
void WebViewImpl::setIsAcceleratedCompositingActive(bool active)
{
// In the middle of shutting down; don't try to spin back up a compositor.
// FIXME: compositing startup/shutdown should be refactored so that it
// turns on explicitly rather than lazily, which causes this awkwardness.
if (m_layerTreeViewClosed)
return;
ASSERT(!active || m_layerTreeView);
Platform::current()->histogramEnumeration("GPU.setIsAcceleratedCompositingActive", active * 2 + m_isAcceleratedCompositingActive, 4);
if (m_isAcceleratedCompositingActive == active)
return;
if (!m_client)
return;
if (!active) {
m_isAcceleratedCompositingActive = false;
if (!m_layerTreeViewCommitsDeferred) {
ASSERT(m_layerTreeView);
// This means that we're transitioning to a new page. Suppress commits until WebKit generates invalidations so
// we don't attempt to paint too early in the next page load.
m_layerTreeView->setDeferCommits(true);
m_layerTreeViewCommitsDeferred = true;
}
} else {
TRACE_EVENT0("blink", "WebViewImpl::setIsAcceleratedCompositingActive(true)");
m_layerTreeView->setRootLayer(*m_rootLayer);
bool visible = page()->visibilityState() == PageVisibilityStateVisible;
m_layerTreeView->setVisible(visible);
updateLayerTreeDeviceScaleFactor();
updateLayerTreeBackgroundColor();
m_layerTreeView->setHasTransparentBackground(isTransparent());
m_isAcceleratedCompositingActive = true;
m_layerTreeView->setShowFPSCounter(m_showFPSCounter);
m_layerTreeView->setShowPaintRects(m_showPaintRects);
m_layerTreeView->setShowDebugBorders(m_showDebugBorders);
m_layerTreeView->setContinuousPaintingEnabled(m_continuousPaintingEnabled);
m_layerTreeView->setShowScrollBottleneckRects(m_showScrollBottleneckRects);
m_layerTreeView->heuristicsForGpuRasterizationUpdated(m_matchesHeuristicsForGpuRasterization);
}
}
void WebViewImpl::updateMainFrameScrollPosition(const IntPoint& scrollPosition, bool programmaticScroll)
{
// FIXME(sky): Remove
}
void WebViewImpl::updateLayerTreeBackgroundColor()
{
if (!m_layerTreeView)
return;
m_layerTreeView->setBackgroundColor(alphaChannel(m_backgroundColorOverride) ? m_backgroundColorOverride : backgroundColor());
}
void WebViewImpl::updateLayerTreeDeviceScaleFactor()
{
ASSERT(page());
ASSERT(m_layerTreeView);
float deviceScaleFactor = m_compositorDeviceScaleFactorOverride ? m_compositorDeviceScaleFactorOverride : page()->deviceScaleFactor();
m_layerTreeView->setDeviceScaleFactor(deviceScaleFactor);
}
void WebViewImpl::updateRootLayerTransform()
{
// If we don't have a root graphics layer, we won't bother trying to find
// or update the transform layer.
if (!m_rootGraphicsLayer)
return;
// FIXME(bokan): m_rootTransformLayer is always set here in pinch virtual viewport. This can go away once
// that's default everywhere.
if (!m_rootTransformLayer)
m_rootTransformLayer = m_page->mainFrame()->view()->renderView()->compositor()->ensureRootTransformLayer();
if (m_rootTransformLayer) {
TransformationMatrix transform;
transform.translate(m_rootLayerOffset.width, m_rootLayerOffset.height);
transform = transform.scale(m_rootLayerScale);
m_rootTransformLayer->setTransform(transform);
}
}
bool WebViewImpl::detectContentOnTouch(const WebPoint& position)
{
HitTestResult touchHit = hitTestResultForWindowPos(position);
if (touchHit.isContentEditable())
return false;
Node* node = touchHit.innerNode();
if (!node || !node->isTextNode())
return false;
// Ignore when tapping on links or nodes listening to click events.
for (; node; node = NodeRenderingTraversal::parent(node)) {
if (node->isLink() || node->willRespondToTouchEvents() || node->willRespondToMouseClickEvents())
return false;
}
WebContentDetectionResult content = m_client->detectContentAround(touchHit);
if (!content.isValid())
return false;
m_client->scheduleContentIntent(content.intent());
return true;
}
void WebViewImpl::setVisibilityState(WebPageVisibilityState visibilityState,
bool isInitialState) {
if (!page())
return;
ASSERT(visibilityState == WebPageVisibilityStateVisible || visibilityState == WebPageVisibilityStateHidden);
m_page->setVisibilityState(static_cast<PageVisibilityState>(static_cast<int>(visibilityState)), isInitialState);
if (m_layerTreeView) {
bool visible = visibilityState == WebPageVisibilityStateVisible;
m_layerTreeView->setVisible(visible);
}
}
bool WebViewImpl::shouldDisableDesktopWorkarounds()
{
return true;
}
} // namespace blink