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android / platform / external / chromium_org / third_party / WebKit / 5c87bf8 / . / Source / WebKit / chromium / src / WebViewImpl.cpp
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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 "WebViewImpl.h"
#include "AXObjectCache.h"
#include "ActivePlatformGestureAnimation.h"
#include "AutofillPopupMenuClient.h"
#include "BackForwardListChromium.h"
#include "BatteryClientImpl.h"
#include "BatteryController.h"
#include "CSSValueKeywords.h"
#include "Chrome.h"
#include "Color.h"
#include "ColorSpace.h"
#include "CompositionUnderlineVectorBuilder.h"
#include "CompositorHUDFontAtlas.h"
#include "ContextFeaturesClientImpl.h"
#include "ContextMenu.h"
#include "ContextMenuController.h"
#include "ContextMenuItem.h"
#include "Cursor.h"
#include "DOMUtilitiesPrivate.h"
#include "DeviceOrientationClientProxy.h"
#include "Document.h"
#include "DocumentLoader.h"
#include "DragController.h"
#include "DragData.h"
#include "DragScrollTimer.h"
#include "DragSession.h"
#include "Editor.h"
#include "EventHandler.h"
#include "Extensions3D.h"
#include "FocusController.h"
#include "FontDescription.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameSelection.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "GeolocationClientProxy.h"
#include "GeolocationController.h"
#include "GraphicsContext.h"
#include "GraphicsContext3D.h"
#include "GraphicsContext3DPrivate.h"
#include "HTMLInputElement.h"
#include "HTMLMediaElement.h"
#include "HTMLNames.h"
#include "HTMLTextAreaElement.h"
#include "HitTestResult.h"
#include "Image.h"
#include "ImageBuffer.h"
#include "InspectorController.h"
#include "InspectorInstrumentation.h"
#include "KeyboardCodes.h"
#include "KeyboardEvent.h"
#include "LayerPainterChromium.h"
#include "LinkHighlight.h"
#include "MIMETypeRegistry.h"
#include "NodeRenderStyle.h"
#include "NonCompositedContentHost.h"
#include "Page.h"
#include "PageGroup.h"
#include "PageGroupLoadDeferrer.h"
#include "PagePopupClient.h"
#include "PageWidgetDelegate.h"
#include "PlatformContextSkia.h"
#include "PlatformKeyboardEvent.h"
#include "PlatformMouseEvent.h"
#include "PlatformThemeChromiumLinux.h"
#include "PlatformWheelEvent.h"
#include "PointerLockController.h"
#include "PopupContainer.h"
#include "PopupMenuClient.h"
#include "PrerendererClientImpl.h"
#include "ProgressTracker.h"
#include "RenderLayerCompositor.h"
#include "RenderView.h"
#include "RenderWidget.h"
#include "ResourceHandle.h"
#include "SchemeRegistry.h"
#include "SecurityOrigin.h"
#include "SecurityPolicy.h"
#include "Settings.h"
#include "SharedGraphicsContext3D.h"
#include "SpeechInputClientImpl.h"
#include "SpeechRecognitionClientProxy.h"
#include "StyleResolver.h"
#include "Text.h"
#include "TextFieldDecoratorImpl.h"
#include "TextIterator.h"
#include "Timer.h"
#include "TraceEvent.h"
#include "ValidationMessageClientImpl.h"
#include "WebAccessibilityObject.h"
#include "WebActiveWheelFlingParameters.h"
#include "WebAutofillClient.h"
#include "WebCompositorInputHandlerImpl.h"
#include "WebDevToolsAgentImpl.h"
#include "WebDevToolsAgentPrivate.h"
#include "WebFrameImpl.h"
#include "WebHelperPluginImpl.h"
#include "WebHitTestResult.h"
#include "WebInputElement.h"
#include "WebInputEvent.h"
#include "WebInputEventConversion.h"
#include "WebMediaPlayerAction.h"
#include "WebNode.h"
#include "WebPagePopupImpl.h"
#include "WebPlugin.h"
#include "WebPluginAction.h"
#include "WebPluginContainerImpl.h"
#include "WebPopupMenuImpl.h"
#include "WebRange.h"
#include "WebRuntimeFeatures.h"
#include "WebSettingsImpl.h"
#include "WebTextInputInfo.h"
#include "WebViewClient.h"
#include "WheelEvent.h"
#include "painting/GraphicsContextBuilder.h"
#include <public/Platform.h>
#include <public/WebCompositorOutputSurface.h>
#include <public/WebCompositorSupport.h>
#include <public/WebDragData.h>
#include <public/WebFloatPoint.h>
#include <public/WebGraphicsContext3D.h>
#include <public/WebImage.h>
#include <public/WebLayer.h>
#include <public/WebLayerTreeView.h>
#include <public/WebPoint.h>
#include <public/WebRect.h>
#include <public/WebString.h>
#include <public/WebVector.h>
#include <wtf/CurrentTime.h>
#include <wtf/MainThread.h>
#include <wtf/RefPtr.h>
#include <wtf/TemporaryChange.h>
#include <wtf/Uint8ClampedArray.h>
#if ENABLE(GESTURE_EVENTS)
#include "PlatformGestureCurveFactory.h"
#include "PlatformGestureEvent.h"
#include "TouchDisambiguation.h"
#endif
#if OS(WINDOWS)
#include "RenderThemeChromiumWin.h"
#else
#if OS(UNIX) && !OS(DARWIN)
#include "RenderThemeChromiumLinux.h"
#endif
#include "RenderTheme.h"
#endif
// Get rid of WTF's pow define so we can use std::pow.
#undef pow
#include <cmath> // for std::pow
using namespace WebCore;
using namespace std;
// The following constants control parameters for automated scaling of webpages
// (such as due to a double tap gesture or find in page etc.). These are
// experimentally determined.
static const int touchPointPadding = 32;
static const int nonUserInitiatedPointPadding = 11;
static const float minScaleDifference = 0.01f;
static const float doubleTapZoomContentDefaultMargin = 5;
static const float doubleTapZoomContentMinimumMargin = 2;
static const double doubleTapZoomAnimationDurationInSeconds = 0.25;
static const float doubleTapZoomAlreadyLegibleRatio = 1.2f;
// Constants for zooming in on a focused text field.
static const double scrollAndScaleAnimationDurationInSeconds = 0.2;
static const int minReadableCaretHeight = 18;
static const float minScaleChangeToTriggerZoom = 1.05f;
static const float leftBoxRatio = 0.3f;
static const int caretPadding = 10;
namespace WebKit {
// Change the text zoom level by kTextSizeMultiplierRatio each time the user
// zooms text in or out (ie., change by 20%). The min and max values limit
// text zoom to half and 3x the original text size. These three values match
// those in Apple's port in WebKit/WebKit/WebView/WebView.mm
const double WebView::textSizeMultiplierRatio = 1.2;
const double WebView::minTextSizeMultiplier = 0.5;
const double WebView::maxTextSizeMultiplier = 3.0;
const float WebView::minPageScaleFactor = 0.25f;
const float WebView::maxPageScaleFactor = 4.0f;
// The group name identifies a namespace of pages. Page group is used on PLATFORM(MAC)
// for some programs that use HTML views to display things that don't seem like
// web pages to the user (so shouldn't have visited link coloring). We only use
// one page group.
const char* pageGroupName = "default";
// Used to defer all page activity in cases where the embedder wishes to run
// a nested event loop. Using a stack enables nesting of message loop invocations.
static Vector<PageGroupLoadDeferrer*>& pageGroupLoadDeferrerStack()
{
DEFINE_STATIC_LOCAL(Vector<PageGroupLoadDeferrer*>, deferrerStack, ());
return deferrerStack;
}
// Ensure that the WebDragOperation enum values stay in sync with the original
// DragOperation constants.
#define COMPILE_ASSERT_MATCHING_ENUM(coreName) \
COMPILE_ASSERT(int(coreName) == int(Web##coreName), dummy##coreName)
COMPILE_ASSERT_MATCHING_ENUM(DragOperationNone);
COMPILE_ASSERT_MATCHING_ENUM(DragOperationCopy);
COMPILE_ASSERT_MATCHING_ENUM(DragOperationLink);
COMPILE_ASSERT_MATCHING_ENUM(DragOperationGeneric);
COMPILE_ASSERT_MATCHING_ENUM(DragOperationPrivate);
COMPILE_ASSERT_MATCHING_ENUM(DragOperationMove);
COMPILE_ASSERT_MATCHING_ENUM(DragOperationDelete);
COMPILE_ASSERT_MATCHING_ENUM(DragOperationEvery);
static const PopupContainerSettings autofillPopupSettings = {
false, // setTextOnIndexChange
false, // acceptOnAbandon
true, // loopSelectionNavigation
false // restrictWidthOfListBox (For security reasons show the entire entry
// so the user doesn't enter information he did not intend to.)
};
static bool shouldUseExternalPopupMenus = false;
static int webInputEventKeyStateToPlatformEventKeyState(int webInputEventKeyState)
{
int platformEventKeyState = 0;
if (webInputEventKeyState & WebInputEvent::ShiftKey)
platformEventKeyState = platformEventKeyState | WebCore::PlatformEvent::ShiftKey;
if (webInputEventKeyState & WebInputEvent::ControlKey)
platformEventKeyState = platformEventKeyState | WebCore::PlatformEvent::CtrlKey;
if (webInputEventKeyState & WebInputEvent::AltKey)
platformEventKeyState = platformEventKeyState | WebCore::PlatformEvent::AltKey;
if (webInputEventKeyState & WebInputEvent::MetaKey)
platformEventKeyState = platformEventKeyState | WebCore::PlatformEvent::MetaKey;
return platformEventKeyState;
}
// WebView ----------------------------------------------------------------
WebView* WebView::create(WebViewClient* client)
{
// Pass the WebViewImpl's self-reference to the caller.
return adoptRef(new WebViewImpl(client)).leakRef();
}
void WebView::setUseExternalPopupMenus(bool useExternalPopupMenus)
{
shouldUseExternalPopupMenus = useExternalPopupMenus;
}
void WebView::updateVisitedLinkState(unsigned long long linkHash)
{
Page::visitedStateChanged(PageGroup::pageGroup(pageGroupName), linkHash);
}
void WebView::resetVisitedLinkState()
{
Page::allVisitedStateChanged(PageGroup::pageGroup(pageGroupName));
}
void WebView::willEnterModalLoop()
{
PageGroup* pageGroup = PageGroup::pageGroup(pageGroupName);
ASSERT(pageGroup);
if (pageGroup->pages().isEmpty())
pageGroupLoadDeferrerStack().append(static_cast<PageGroupLoadDeferrer*>(0));
else {
// Pick any page in the page group since we are deferring all pages.
pageGroupLoadDeferrerStack().append(new PageGroupLoadDeferrer(*pageGroup->pages().begin(), true));
}
}
void WebView::didExitModalLoop()
{
ASSERT(pageGroupLoadDeferrerStack().size());
delete pageGroupLoadDeferrerStack().last();
pageGroupLoadDeferrerStack().removeLast();
}
void WebViewImpl::initializeMainFrame(WebFrameClient* frameClient)
{
// NOTE: The WebFrameImpl takes a reference to itself within InitMainFrame
// and releases that reference once the corresponding Frame is destroyed.
RefPtr<WebFrameImpl> frame = WebFrameImpl::create(frameClient);
frame->initializeAsMainFrame(page());
// Restrict the access to the local file system
// (see WebView.mm WebView::_commonInitializationWithFrameName).
SecurityPolicy::setLocalLoadPolicy(SecurityPolicy::AllowLocalLoadsForLocalOnly);
}
void WebViewImpl::initializeHelperPluginFrame(WebFrameClient* client)
{
RefPtr<WebFrameImpl> frame = WebFrameImpl::create(client);
}
void WebViewImpl::setAutofillClient(WebAutofillClient* autofillClient)
{
m_autofillClient = autofillClient;
}
void WebViewImpl::setDevToolsAgentClient(WebDevToolsAgentClient* devToolsClient)
{
if (devToolsClient)
m_devToolsAgent = adoptPtr(new WebDevToolsAgentImpl(this, devToolsClient));
else
m_devToolsAgent.clear();
}
void WebViewImpl::setPermissionClient(WebPermissionClient* permissionClient)
{
m_permissionClient = permissionClient;
m_featureSwitchClient->setPermissionClient(permissionClient);
}
void WebViewImpl::setPrerendererClient(WebPrerendererClient* prerendererClient)
{
providePrerendererClientTo(m_page.get(), new PrerendererClientImpl(prerendererClient));
}
void WebViewImpl::setSpellCheckClient(WebSpellCheckClient* spellCheckClient)
{
m_spellCheckClient = spellCheckClient;
}
void WebViewImpl::addTextFieldDecoratorClient(WebTextFieldDecoratorClient* client)
{
ASSERT(client);
// We limit the number of decorators because it affects performance of text
// field creation. If you'd like to add more decorators, consider moving
// your decorator or existing decorators to WebCore.
const unsigned maximumNumberOfDecorators = 8;
if (m_textFieldDecorators.size() >= maximumNumberOfDecorators)
CRASH();
m_textFieldDecorators.append(TextFieldDecoratorImpl::create(client));
}
WebViewImpl::WebViewImpl(WebViewClient* client)
: m_client(client)
, m_autofillClient(0)
, m_permissionClient(0)
, m_spellCheckClient(0)
, m_chromeClientImpl(this)
, m_contextMenuClientImpl(this)
, m_dragClientImpl(this)
, m_editorClientImpl(this)
, m_inspectorClientImpl(this)
, m_shouldAutoResize(false)
, m_observedNewNavigation(false)
#ifndef NDEBUG
, m_newNavigationLoader(0)
#endif
, m_zoomLevel(0)
, m_minimumZoomLevel(zoomFactorToZoomLevel(minTextSizeMultiplier))
, m_maximumZoomLevel(zoomFactorToZoomLevel(maxTextSizeMultiplier))
, m_pageDefinedMinimumPageScaleFactor(-1)
, m_pageDefinedMaximumPageScaleFactor(-1)
, m_minimumPageScaleFactor(minPageScaleFactor)
, m_maximumPageScaleFactor(maxPageScaleFactor)
, m_ignoreViewportTagMaximumScale(false)
, m_pageScaleFactorIsSet(false)
, m_savedPageScaleFactor(0)
, m_doubleTapZoomInEffect(false)
, m_shouldUseDoubleTapTimeZero(false)
, m_contextMenuAllowed(false)
, m_doingDragAndDrop(false)
, m_ignoreInputEvents(false)
, m_suppressNextKeypressEvent(false)
, m_initialNavigationPolicy(WebNavigationPolicyIgnore)
, m_imeAcceptEvents(true)
, m_operationsAllowed(WebDragOperationNone)
, m_dragOperation(WebDragOperationNone)
, m_featureSwitchClient(adoptPtr(new ContextFeaturesClientImpl()))
, m_autofillPopupShowing(false)
, m_autofillPopup(0)
, m_isTransparent(false)
, m_tabsToLinks(false)
, m_dragScrollTimer(adoptPtr(new DragScrollTimer))
, m_isCancelingFullScreen(false)
, m_benchmarkSupport(this)
#if USE(ACCELERATED_COMPOSITING)
, m_rootLayer(0)
, m_rootGraphicsLayer(0)
, m_isAcceleratedCompositingActive(false)
, m_layerTreeViewCommitsDeferred(false)
, m_compositorCreationFailed(false)
, m_recreatingGraphicsContext(false)
, m_compositorSurfaceReady(false)
, m_deviceScaleInCompositor(1)
, m_inputHandlerIdentifier(-1)
#endif
#if ENABLE(INPUT_SPEECH)
, m_speechInputClient(SpeechInputClientImpl::create(client))
#endif
#if ENABLE(SCRIPTED_SPEECH)
, m_speechRecognitionClient(SpeechRecognitionClientProxy::create(client ? client->speechRecognizer() : 0))
#endif
, m_deviceOrientationClientProxy(adoptPtr(new DeviceOrientationClientProxy(client ? client->deviceOrientationClient() : 0)))
, m_geolocationClientProxy(adoptPtr(new GeolocationClientProxy(client ? client->geolocationClient() : 0)))
#if ENABLE(BATTERY_STATUS)
, m_batteryClient(adoptPtr(new BatteryClientImpl(client ? client->batteryStatusClient() : 0)))
#endif
, m_emulatedTextZoomFactor(1)
#if ENABLE(MEDIA_STREAM)
, m_userMediaClientImpl(this)
#endif
#if ENABLE(NAVIGATOR_CONTENT_UTILS)
, m_navigatorContentUtilsClient(NavigatorContentUtilsClientImpl::create(this))
#endif
, m_flingModifier(0)
, m_validationMessage(ValidationMessageClientImpl::create(*client))
, m_suppressInvalidations(false)
{
// WebKit/win/WebView.cpp does the same thing, except they call the
// KJS specific wrapper around this method. We need to have threading
// initialized because CollatorICU requires it.
WTF::initializeThreading();
WTF::initializeMainThread();
Page::PageClients pageClients;
pageClients.chromeClient = &m_chromeClientImpl;
pageClients.contextMenuClient = &m_contextMenuClientImpl;
pageClients.editorClient = &m_editorClientImpl;
pageClients.dragClient = &m_dragClientImpl;
pageClients.inspectorClient = &m_inspectorClientImpl;
pageClients.backForwardClient = BackForwardListChromium::create(this);
// FIXME: Set pageClients.validationMessageClient when Chromium-side implementation is done.
m_page = adoptPtr(new Page(pageClients));
#if ENABLE(MEDIA_STREAM)
provideUserMediaTo(m_page.get(), &m_userMediaClientImpl);
#endif
#if ENABLE(INPUT_SPEECH)
provideSpeechInputTo(m_page.get(), m_speechInputClient.get());
#endif
#if ENABLE(SCRIPTED_SPEECH)
provideSpeechRecognitionTo(m_page.get(), m_speechRecognitionClient.get());
#endif
#if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
provideNotification(m_page.get(), notificationPresenterImpl());
#endif
#if ENABLE(NAVIGATOR_CONTENT_UTILS)
provideNavigatorContentUtilsTo(m_page.get(), m_navigatorContentUtilsClient.get());
#endif
provideContextFeaturesTo(m_page.get(), m_featureSwitchClient.get());
provideDeviceOrientationTo(m_page.get(), m_deviceOrientationClientProxy.get());
provideGeolocationTo(m_page.get(), m_geolocationClientProxy.get());
m_geolocationClientProxy->setController(GeolocationController::from(m_page.get()));
#if ENABLE(BATTERY_STATUS)
provideBatteryTo(m_page.get(), m_batteryClient.get());
m_batteryClient->setController(BatteryController::from(m_page.get()));
#endif
m_page->setGroupName(pageGroupName);
unsigned layoutMilestones = DidFirstLayout | DidFirstVisuallyNonEmptyLayout;
m_page->addLayoutMilestones(static_cast<LayoutMilestones>(layoutMilestones));
#if ENABLE(PAGE_VISIBILITY_API)
if (m_client)
setVisibilityState(m_client->visibilityState(), true);
#endif
m_inspectorSettingsMap = adoptPtr(new SettingsMap);
}
WebViewImpl::~WebViewImpl()
{
ASSERT(!m_page);
}
RenderTheme* WebViewImpl::theme() const
{
return m_page ? m_page->theme() : RenderTheme::defaultTheme().get();
}
WebFrameImpl* WebViewImpl::mainFrameImpl()
{
return m_page ? WebFrameImpl::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(Frame& mainFrame, const WebMouseEvent& event)
{
m_client->setMouseOverURL(WebURL());
PageWidgetEventHandler::handleMouseLeave(mainFrame, event);
}
void WebViewImpl::handleMouseDown(Frame& mainFrame, const WebMouseEvent& event)
{
// If there is a popup open, close it as the user is clicking on the page (outside of the
// popup). We also save it so we can prevent a click on an element from immediately
// reopening the same popup.
RefPtr<WebCore::PopupContainer> selectPopup;
#if ENABLE(PAGE_POPUP)
RefPtr<WebPagePopupImpl> pagePopup;
#endif
if (event.button == WebMouseEvent::ButtonLeft) {
selectPopup = m_selectPopup;
#if ENABLE(PAGE_POPUP)
pagePopup = m_pagePopup;
#endif
hidePopups();
ASSERT(!m_selectPopup);
#if ENABLE(PAGE_POPUP)
ASSERT(!m_pagePopup);
#endif
}
m_lastMouseDownPoint = WebPoint(event.x, event.y);
if (event.button == WebMouseEvent::ButtonLeft) {
IntPoint point(event.x, event.y);
point = m_page->mainFrame()->view()->windowToContents(point);
HitTestResult result(m_page->mainFrame()->eventHandler()->hitTestResultAtPoint(point, false));
Node* hitNode = result.innerNonSharedNode();
// Take capture on a mouse down on a plugin so we can send it mouse events.
if (hitNode && hitNode->renderer() && hitNode->renderer()->isEmbeddedObject())
m_mouseCaptureNode = hitNode;
}
PageWidgetEventHandler::handleMouseDown(mainFrame, event);
if (m_selectPopup && m_selectPopup == selectPopup) {
// That click triggered a select popup which is the same as the one that
// was showing before the click. It means the user clicked the select
// while the popup was showing, and as a result we first closed then
// immediately reopened the select popup. It needs to be closed.
hideSelectPopup();
}
#if ENABLE(PAGE_POPUP)
if (m_pagePopup && pagePopup && m_pagePopup->hasSamePopupClient(pagePopup.get())) {
// That click triggered a page popup that is the same as the one we just closed.
// It needs to be closed.
closePagePopup(m_pagePopup.get());
}
#endif
// Dispatch the contextmenu event regardless of if the click was swallowed.
// On Windows, we handle it on mouse up, not down.
#if OS(DARWIN)
if (event.button == WebMouseEvent::ButtonRight
|| (event.button == WebMouseEvent::ButtonLeft
&& event.modifiers & WebMouseEvent::ControlKey))
mouseContextMenu(event);
#elif OS(UNIX) || OS(ANDROID)
if (event.button == WebMouseEvent::ButtonRight)
mouseContextMenu(event);
#endif
}
void WebViewImpl::mouseContextMenu(const WebMouseEvent& event)
{
if (!mainFrameImpl() || !mainFrameImpl()->frameView())
return;
m_page->contextMenuController()->clearContextMenu();
PlatformMouseEventBuilder pme(mainFrameImpl()->frameView(), event);
// Find the right target frame. See issue 1186900.
HitTestResult result = hitTestResultForWindowPos(pme.position());
Frame* targetFrame;
if (result.innerNonSharedNode())
targetFrame = result.innerNonSharedNode()->document()->frame();
else
targetFrame = m_page->focusController()->focusedOrMainFrame();
#if OS(WINDOWS)
targetFrame->view()->setCursor(pointerCursor());
#endif
m_contextMenuAllowed = true;
targetFrame->eventHandler()->sendContextMenuEvent(pme);
m_contextMenuAllowed = false;
// Actually showing the context menu is handled by the ContextMenuClient
// implementation...
}
void WebViewImpl::handleMouseUp(Frame& mainFrame, const WebMouseEvent& event)
{
PageWidgetEventHandler::handleMouseUp(mainFrame, event);
#if OS(WINDOWS)
// Dispatch the contextmenu event regardless of if the click was swallowed.
// On Mac/Linux, we handle it on mouse down, not up.
if (event.button == WebMouseEvent::ButtonRight)
mouseContextMenu(event);
#endif
}
void WebViewImpl::scrollBy(const WebCore::IntPoint& delta)
{
WebMouseWheelEvent syntheticWheel;
const float tickDivisor = WebCore::WheelEvent::tickMultiplier;
syntheticWheel.deltaX = delta.x();
syntheticWheel.deltaY = delta.y();
syntheticWheel.wheelTicksX = delta.x() / tickDivisor;
syntheticWheel.wheelTicksY = delta.y() / tickDivisor;
syntheticWheel.hasPreciseScrollingDeltas = true;
syntheticWheel.x = m_lastWheelPosition.x;
syntheticWheel.y = m_lastWheelPosition.y;
syntheticWheel.globalX = m_lastWheelGlobalPosition.x;
syntheticWheel.globalY = m_lastWheelGlobalPosition.y;
syntheticWheel.modifiers = m_flingModifier;
if (m_page && m_page->mainFrame() && m_page->mainFrame()->view())
handleMouseWheel(*m_page->mainFrame(), syntheticWheel);
}
#if ENABLE(GESTURE_EVENTS)
bool WebViewImpl::handleGestureEvent(const WebGestureEvent& event)
{
bool eventSwallowed = false;
// Handle link highlighting outside the main switch to avoid getting lost in the
// complicated set of cases handled below.
switch (event.type) {
case WebInputEvent::GestureTapDown:
// Queue a highlight animation, then hand off to regular handler.
#if OS(LINUX)
if (settingsImpl()->gestureTapHighlightEnabled())
enableTouchHighlight(event);
#endif
break;
case WebInputEvent::GestureTapCancel:
if (m_linkHighlight)
m_linkHighlight->startHighlightAnimationIfNeeded();
break;
case WebInputEvent::GestureTap:
case WebInputEvent::GestureLongPress:
// If a link highlight is active, kill it.
m_linkHighlight.clear();
break;
default:
break;
}
switch (event.type) {
case WebInputEvent::GestureFlingStart: {
m_client->cancelScheduledContentIntents();
m_lastWheelPosition = WebPoint(event.x, event.y);
m_lastWheelGlobalPosition = WebPoint(event.globalX, event.globalY);
m_flingModifier = event.modifiers;
// FIXME: Make the curve parametrizable from the browser.
OwnPtr<PlatformGestureCurve> flingCurve = PlatformGestureCurveFactory::get()->createCurve(event.data.flingStart.sourceDevice, FloatPoint(event.data.flingStart.velocityX, event.data.flingStart.velocityY));
m_gestureAnimation = ActivePlatformGestureAnimation::create(flingCurve.release(), this);
scheduleAnimation();
eventSwallowed = true;
break;
}
case WebInputEvent::GestureFlingCancel:
if (m_gestureAnimation) {
m_gestureAnimation.clear();
eventSwallowed = true;
}
break;
case WebInputEvent::GestureTap: {
m_client->cancelScheduledContentIntents();
if (detectContentOnTouch(WebPoint(event.x, event.y))) {
eventSwallowed = true;
break;
}
RefPtr<WebCore::PopupContainer> selectPopup;
selectPopup = m_selectPopup;
hideSelectPopup();
ASSERT(!m_selectPopup);
if (event.data.tap.width > 0) {
IntRect boundingBox(event.x - event.data.tap.width / 2, event.y - event.data.tap.height / 2, event.data.tap.width, event.data.tap.height);
Vector<IntRect> goodTargets;
findGoodTouchTargets(boundingBox, mainFrameImpl()->frame(), pageScaleFactor(), goodTargets);
// 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(event, goodTargets)) {
eventSwallowed = true;
break;
}
}
PlatformGestureEventBuilder platformEvent(mainFrameImpl()->frameView(), event);
eventSwallowed = mainFrameImpl()->frame()->eventHandler()->handleGestureEvent(platformEvent);
if (m_selectPopup && m_selectPopup == selectPopup) {
// That tap triggered a select popup which is the same as the one that
// was showing before the tap. It means the user tapped the select
// while the popup was showing, and as a result we first closed then
// immediately reopened the select popup. It needs to be closed.
hideSelectPopup();
}
break;
}
case WebInputEvent::GestureTwoFingerTap:
case WebInputEvent::GestureLongPress:
case WebInputEvent::GestureLongTap: {
if (!mainFrameImpl() || !mainFrameImpl()->frameView())
break;
m_client->cancelScheduledContentIntents();
m_page->contextMenuController()->clearContextMenu();
m_contextMenuAllowed = true;
PlatformGestureEventBuilder platformEvent(mainFrameImpl()->frameView(), event);
eventSwallowed = mainFrameImpl()->frame()->eventHandler()->handleGestureEvent(platformEvent);
m_contextMenuAllowed = false;
break;
}
case WebInputEvent::GestureTapDown: {
m_client->cancelScheduledContentIntents();
PlatformGestureEventBuilder platformEvent(mainFrameImpl()->frameView(), event);
eventSwallowed = mainFrameImpl()->frame()->eventHandler()->handleGestureEvent(platformEvent);
break;
}
case WebInputEvent::GestureDoubleTap:
if (m_webSettings->doubleTapToZoomEnabled()) {
m_client->cancelScheduledContentIntents();
animateZoomAroundPoint(WebPoint(event.x, event.y), DoubleTap);
eventSwallowed = true;
break;
}
case WebInputEvent::GestureScrollBegin:
case WebInputEvent::GesturePinchBegin:
m_client->cancelScheduledContentIntents();
case WebInputEvent::GestureScrollEnd:
case WebInputEvent::GestureScrollUpdate:
case WebInputEvent::GestureTapCancel:
case WebInputEvent::GesturePinchEnd:
case WebInputEvent::GesturePinchUpdate: {
PlatformGestureEventBuilder platformEvent(mainFrameImpl()->frameView(), event);
eventSwallowed = mainFrameImpl()->frame()->eventHandler()->handleGestureEvent(platformEvent);
break;
}
default:
ASSERT_NOT_REACHED();
}
m_client->didHandleGestureEvent(event, eventSwallowed);
return eventSwallowed;
}
void WebViewImpl::transferActiveWheelFlingAnimation(const WebActiveWheelFlingParameters& parameters)
{
TRACE_EVENT0("webkit", "WebViewImpl::transferActiveWheelFlingAnimation");
ASSERT(!m_gestureAnimation);
m_lastWheelPosition = parameters.point;
m_lastWheelGlobalPosition = parameters.globalPoint;
m_flingModifier = parameters.modifiers;
OwnPtr<PlatformGestureCurve> curve = PlatformGestureCurveFactory::get()->createCurve(parameters.sourceDevice, parameters.delta, IntPoint(parameters.cumulativeScroll));
m_gestureAnimation = ActivePlatformGestureAnimation::create(curve.release(), this, parameters.startTime);
scheduleAnimation();
}
void WebViewImpl::renderingStats(WebRenderingStats& stats) const
{
if (m_layerTreeView)
m_layerTreeView->renderingStats(stats);
}
void WebViewImpl::startPageScaleAnimation(const IntPoint& targetPosition, bool useAnchor, float newScale, double durationInSeconds)
{
WebPoint clampedPoint = targetPosition;
if (!useAnchor)
clampedPoint = clampOffsetAtScale(targetPosition, newScale);
if ((!durationInSeconds && !useAnchor) || m_shouldUseDoubleTapTimeZero) {
setPageScaleFactor(newScale, clampedPoint);
return;
}
if (!m_layerTreeView)
return;
m_layerTreeView->startPageScaleAnimation(targetPosition, useAnchor, newScale, durationInSeconds);
}
#endif
WebViewBenchmarkSupport* WebViewImpl::benchmarkSupport()
{
return &m_benchmarkSupport;
}
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.
if (m_gestureAnimation)
m_gestureAnimation.clear();
// 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;
// If there is a select popup, it should be the one processing the event,
// not the page.
if (m_selectPopup)
return m_selectPopup->handleKeyEvent(PlatformKeyboardEventBuilder(event));
#if ENABLE(PAGE_POPUP)
if (m_pagePopup) {
m_pagePopup->handleKeyEvent(PlatformKeyboardEventBuilder(event));
// We need to ignore the next Char event after this otherwise pressing
// enter when selecting an item in the popup will go to the page.
if (WebInputEvent::RawKeyDown == event.type)
m_suppressNextKeypressEvent = true;
return true;
}
#endif
// Give Autocomplete a chance to consume the key events it is interested in.
if (autocompleteHandleKeyEvent(event))
return true;
RefPtr<Frame> frame = focusedWebCoreFrame();
if (!frame)
return false;
EventHandler* handler = frame->eventHandler();
if (!handler)
return keyEventDefault(event);
#if !OS(DARWIN)
const WebInputEvent::Type contextMenuTriggeringEventType =
#if OS(WINDOWS)
WebInputEvent::KeyUp;
#elif OS(UNIX)
WebInputEvent::RawKeyDown;
#endif
bool isUnmodifiedMenuKey = !(event.modifiers & WebInputEvent::InputModifiers) && event.windowsKeyCode == VKEY_APPS;
bool isShiftF10 = event.modifiers == WebInputEvent::ShiftKey && event.windowsKeyCode == VKEY_F10;
if ((isUnmodifiedMenuKey || isShiftF10) && event.type == contextMenuTriggeringEventType) {
sendContextMenuEvent(event);
return true;
}
#endif // !OS(DARWIN)
PlatformKeyboardEventBuilder evt(event);
if (handler->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.)
Node* node = focusedWebCoreNode();
if (!node || !node->renderer() || !node->renderer()->isEmbeddedObject())
m_suppressNextKeypressEvent = true;
}
return true;
}
return keyEventDefault(event);
}
bool WebViewImpl::autocompleteHandleKeyEvent(const WebKeyboardEvent& event)
{
if (!m_autofillPopupShowing
// Home and End should be left to the text field to process.
|| event.windowsKeyCode == VKEY_HOME
|| event.windowsKeyCode == VKEY_END)
return false;
// Pressing delete triggers the removal of the selected suggestion from the DB.
if (event.windowsKeyCode == VKEY_DELETE
&& m_autofillPopup->selectedIndex() != -1) {
Node* node = focusedWebCoreNode();
if (!node || (node->nodeType() != Node::ELEMENT_NODE)) {
ASSERT_NOT_REACHED();
return false;
}
Element* element = static_cast<Element*>(node);
if (!element->hasLocalName(HTMLNames::inputTag)) {
ASSERT_NOT_REACHED();
return false;
}
int selectedIndex = m_autofillPopup->selectedIndex();
if (!m_autofillPopupClient->canRemoveSuggestionAtIndex(selectedIndex))
return false;
WebString name = WebInputElement(static_cast<HTMLInputElement*>(element)).nameForAutofill();
WebString value = m_autofillPopupClient->itemText(selectedIndex);
m_autofillClient->removeAutocompleteSuggestion(name, value);
// Update the entries in the currently showing popup to reflect the
// deletion.
m_autofillPopupClient->removeSuggestionAtIndex(selectedIndex);
refreshAutofillPopup();
return false;
}
if (!m_autofillPopup->isInterestedInEventForKey(event.windowsKeyCode))
return false;
if (m_autofillPopup->handleKeyEvent(PlatformKeyboardEventBuilder(event))) {
// We need to ignore the next Char event after this otherwise pressing
// enter when selecting an item in the menu will go to the page.
if (WebInputEvent::RawKeyDown == event.type)
m_suppressNextKeypressEvent = true;
return true;
}
return false;
}
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;
// If there is a select popup, it should be the one processing the event,
// not the page.
if (m_selectPopup)
return m_selectPopup->handleKeyEvent(PlatformKeyboardEventBuilder(event));
#if ENABLE(PAGE_POPUP)
if (m_pagePopup)
return m_pagePopup->handleKeyEvent(PlatformKeyboardEventBuilder(event));
#endif
Frame* frame = focusedWebCoreFrame();
if (!frame)
return suppress;
EventHandler* handler = frame->eventHandler();
if (!handler)
return suppress || keyEventDefault(event);
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;
}
#if ENABLE(GESTURE_EVENTS)
WebRect WebViewImpl::computeBlockBounds(const WebRect& rect, AutoZoomType zoomType)
{
if (!mainFrameImpl())
return WebRect();
// Use the rect-based hit test to find the node.
IntPoint point = mainFrameImpl()->frameView()->windowToContents(IntPoint(rect.x, rect.y));
HitTestResult result = mainFrameImpl()->frame()->eventHandler()->hitTestResultAtPoint(point,
false, zoomType == FindInPage, DontHitTestScrollbars, HitTestRequest::Active | HitTestRequest::ReadOnly,
IntSize(rect.width, rect.height));
Node* node = result.innerNonSharedNode();
if (!node)
return WebRect();
// Find the block type node based on the hit node.
while (node && (!node->renderer() || node->renderer()->isInline()))
node = node->parentNode();
// Return the bounding box in the window coordinate system.
if (node) {
IntRect rect = node->Node::pixelSnappedBoundingBox();
Frame* 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();
IntSize scrollOffset;
if (mainFrame())
scrollOffset = mainFrame()->scrollOffset();
int leftMargin = targetMargin;
int rightMargin = targetMargin;
const int absoluteSourceX = source.x + scrollOffset.width();
if (leftMargin > absoluteSourceX) {
leftMargin = absoluteSourceX;
rightMargin = max(leftMargin, minimumMargin);
}
const int maximumRightMargin = maxSize.width - (source.width + absoluteSourceX);
if (rightMargin > maximumRightMargin) {
rightMargin = maximumRightMargin;
leftMargin = min(leftMargin, max(rightMargin, minimumMargin));
}
const int newWidth = source.width + leftMargin + rightMargin;
const int newX = source.x - leftMargin;
ASSERT(newWidth >= 0);
ASSERT(scrollOffset.width() + newX + newWidth <= maxSize.width);
return WebRect(newX, source.y, newWidth, source.height);
}
void WebViewImpl::shouldUseAnimateDoubleTapTimeZeroForTesting(bool setToZero)
{
m_shouldUseDoubleTapTimeZero = setToZero;
}
void WebViewImpl::computeScaleAndScrollForHitRect(const WebRect& hitRect, AutoZoomType zoomType, float& scale, WebPoint& scroll, bool& isAnchor)
{
scale = pageScaleFactor();
scroll.x = scroll.y = 0;
WebRect targetRect = hitRect;
// Padding only depends on page scale when triggered by manually tapping
int padding = (zoomType == DoubleTap) ? touchPointPadding : nonUserInitiatedPointPadding;
if (targetRect.isEmpty())
targetRect.width = targetRect.height = padding;
WebRect rect = computeBlockBounds(targetRect, zoomType);
if (zoomType == FindInPage && rect.isEmpty()) {
// Keep current scale (no need to scroll as x,y will normally already
// be visible). FIXME: Revisit this if it isn't always true.
return;
}
bool scaleUnchanged = true;
if (!rect.isEmpty()) {
// Pages should be as legible as on desktop when at dpi scale, so no
// need to zoom in further when automatically determining zoom level
// (after double tap, find in page, etc), though the user should still
// be allowed to manually pinch zoom in further if they desire.
const float defaultScaleWhenAlreadyLegible = m_minimumPageScaleFactor * doubleTapZoomAlreadyLegibleRatio;
float legibleScale = deviceScaleFactor();
if (legibleScale < defaultScaleWhenAlreadyLegible)
legibleScale = (scale == m_minimumPageScaleFactor) ? defaultScaleWhenAlreadyLegible : m_minimumPageScaleFactor;
const float defaultMargin = doubleTapZoomContentDefaultMargin * deviceScaleFactor();
const float minimumMargin = doubleTapZoomContentMinimumMargin * deviceScaleFactor();
// We want the margins to have the same physical size, which means we
// need to express them in post-scale size. To do that we'd need to know
// the scale we're scaling to, but that depends on the margins. Instead
// we express them as a fraction of the target rectangle: this will be
// correct if we end up fully zooming to it, and won't matter if we
// don't.
rect = widenRectWithinPageBounds(rect,
static_cast<int>(defaultMargin * rect.width / m_size.width),
static_cast<int>(minimumMargin * rect.width / m_size.width));
// Fit block to screen, respecting limits.
scale *= static_cast<float>(m_size.width) / rect.width;
scale = min(scale, legibleScale);
scale = clampPageScaleFactorToLimits(scale);
scaleUnchanged = fabs(pageScaleFactor() - scale) < minScaleDifference;
}
if (zoomType == DoubleTap && (rect.isEmpty() || scaleUnchanged || m_doubleTapZoomInEffect)) {
// Zoom out to minimum scale.
scale = m_minimumPageScaleFactor;
scroll = WebPoint(hitRect.x, hitRect.y);
isAnchor = true;
m_doubleTapZoomInEffect = false;
} else {
if (zoomType == DoubleTap && scale != m_minimumPageScaleFactor)
m_doubleTapZoomInEffect = true;
else
m_doubleTapZoomInEffect = false;
// FIXME: If this is being called for auto zoom during find in page,
// then if the user manually zooms in it'd be nice to preserve the
// relative increase in zoom they caused (if they zoom out then it's ok
// to zoom them back in again). This isn't compatible with our current
// double-tap zoom strategy (fitting the containing block to the screen)
// though.
float screenHeight = m_size.height / scale * pageScaleFactor();
float screenWidth = m_size.width / scale * pageScaleFactor();
// Scroll to vertically align the block.
if (rect.height < screenHeight) {
// Vertically center short blocks.
rect.y -= 0.5 * (screenHeight - rect.height);
} else {
// Ensure position we're zooming to (+ padding) isn't off the bottom of
// the screen.
rect.y = max<float>(rect.y, hitRect.y + padding - screenHeight);
} // Otherwise top align the block.
// Do the same thing for horizontal alignment.
if (rect.width < screenWidth)
rect.x -= 0.5 * (screenWidth - rect.width);
else
rect.x = max<float>(rect.x, hitRect.x + padding - screenWidth);
scroll.x = rect.x;
scroll.y = rect.y;
isAnchor = false;
}
scale = clampPageScaleFactorToLimits(scale);
scroll = mainFrameImpl()->frameView()->windowToContents(scroll);
float scaleDelta = scale / pageScaleFactor();
scroll = WebPoint(scroll.x * scaleDelta, scroll.y * scaleDelta);
if (!isAnchor)
scroll = clampOffsetAtScale(scroll, scale);
}
static bool invokesHandCursor(Node* node, bool shiftKey, Frame* 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(), shiftKey));
}
Node* WebViewImpl::bestTouchLinkNode(const WebGestureEvent& touchEvent)
{
if (!m_page || !m_page->mainFrame())
return 0;
Node* bestTouchNode = 0;
// FIXME: Should accept a search region from the caller instead of hard-coding the size.
IntSize touchEventSearchRegionSize(4, 2);
IntPoint touchEventLocation(touchEvent.x, touchEvent.y);
m_page->mainFrame()->eventHandler()->bestClickableNodeForTouchPoint(touchEventLocation, touchEventSearchRegionSize, touchEventLocation, bestTouchNode);
// bestClickableNodeForTouchPoint() doesn't always return a node that is a link, so let's try and find
// a link to highlight.
bool shiftKey = touchEvent.modifiers & WebGestureEvent::ShiftKey;
while (bestTouchNode && !invokesHandCursor(bestTouchNode, shiftKey, m_page->mainFrame()))
bestTouchNode = bestTouchNode->parentNode();
return bestTouchNode;
}
void WebViewImpl::enableTouchHighlight(const WebGestureEvent& touchEvent)
{
// Always clear any existing highlight when this is invoked, even if we don't get a new target to highlight.
m_linkHighlight.clear();
Node* touchNode = bestTouchLinkNode(touchEvent);
if (!touchNode || !touchNode->renderer() || !touchNode->renderer()->enclosingLayer())
return;
Color highlightColor = touchNode->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())
return;
m_linkHighlight = LinkHighlight::create(touchNode, this);
}
#endif
void WebViewImpl::animateZoomAroundPoint(const IntPoint& point, AutoZoomType zoomType)
{
#if ENABLE(GESTURE_EVENTS)
if (!mainFrameImpl())
return;
float scale;
WebPoint scroll;
bool isAnchor;
WebPoint webPoint = point;
computeScaleAndScrollForHitRect(WebRect(webPoint.x, webPoint.y, 0, 0), zoomType, scale, scroll, isAnchor);
bool isDoubleTap = (zoomType == DoubleTap);
double durationInSeconds = (isDoubleTap && !m_shouldUseDoubleTapTimeZero) ? doubleTapZoomAnimationDurationInSeconds : 0;
startPageScaleAnimation(scroll, isAnchor, scale, durationInSeconds);
#endif
}
void WebViewImpl::zoomToFindInPageRect(const WebRect& rect)
{
animateZoomAroundPoint(IntRect(rect).center(), FindInPage);
}
void WebViewImpl::numberOfWheelEventHandlersChanged(unsigned numberOfWheelHandlers)
{
if (m_client)
m_client->numberOfWheelEventHandlersChanged(numberOfWheelHandlers);
}
void WebViewImpl::hasTouchEventHandlers(bool hasTouchHandlers)
{
if (m_client)
m_client->hasTouchEventHandlers(hasTouchHandlers);
}
#if !OS(DARWIN)
// Mac has no way to open a context menu based on a keyboard event.
bool WebViewImpl::sendContextMenuEvent(const WebKeyboardEvent& event)
{
// The contextMenuController() holds onto the last context menu that was
// popped up on the page until a new one is created. We need to clear
// this menu before propagating the event through the DOM so that we can
// detect if we create a new menu for this event, since we won't create
// a new menu if the DOM swallows the event and the defaultEventHandler does
// not run.
page()->contextMenuController()->clearContextMenu();
m_contextMenuAllowed = true;
Frame* focusedFrame = page()->focusController()->focusedOrMainFrame();
bool handled = focusedFrame->eventHandler()->sendContextMenuEventForKey();
m_contextMenuAllowed = false;
return handled;
}
#endif
bool WebViewImpl::keyEventDefault(const WebKeyboardEvent& event)
{
Frame* frame = focusedWebCoreFrame();
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) {
#if !OS(DARWIN)
case 'A':
focusedFrame()->executeCommand(WebString::fromUTF8("SelectAll"));
return true;
case VKEY_INSERT:
case 'C':
focusedFrame()->executeCommand(WebString::fromUTF8("Copy"));
return true;
#endif
// 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 OS(DARWIN)
// Control-Up/Down should be PageUp/Down on Mac.
if (modifiers & WebMouseEvent::ControlKey) {
if (keyCode == VKEY_UP)
keyCode = VKEY_PRIOR;
else if (keyCode == VKEY_DOWN)
keyCode = VKEY_NEXT;
}
#endif
if (!mapKeyCodeForScroll(keyCode, &scrollDirection, &scrollGranularity))
return false;
return propagateScroll(scrollDirection, scrollGranularity);
}
bool WebViewImpl::mapKeyCodeForScroll(int keyCode,
WebCore::ScrollDirection* scrollDirection,
WebCore::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;
}
void WebViewImpl::hideSelectPopup()
{
if (m_selectPopup)
m_selectPopup->hidePopup();
}
bool WebViewImpl::propagateScroll(ScrollDirection scrollDirection,
ScrollGranularity scrollGranularity)
{
Frame* frame = focusedWebCoreFrame();
if (!frame)
return false;
bool scrollHandled = frame->eventHandler()->scrollOverflow(scrollDirection, scrollGranularity);
Frame* currentFrame = frame;
while (!scrollHandled && currentFrame) {
scrollHandled = currentFrame->view()->scroll(scrollDirection, scrollGranularity);
currentFrame = currentFrame->tree()->parent();
}
return scrollHandled;
}
void WebViewImpl::popupOpened(WebCore::PopupContainer* popupContainer)
{
if (popupContainer->popupType() == WebCore::PopupContainer::Select) {
ASSERT(!m_selectPopup);
m_selectPopup = popupContainer;
}
}
void WebViewImpl::popupClosed(WebCore::PopupContainer* popupContainer)
{
if (popupContainer->popupType() == WebCore::PopupContainer::Select) {
ASSERT(m_selectPopup);
m_selectPopup = 0;
}
}
#if ENABLE(PAGE_POPUP)
PagePopup* WebViewImpl::openPagePopup(PagePopupClient* client, const IntRect& originBoundsInRootView)
{
ASSERT(client);
if (hasOpenedPopup())
hidePopups();
ASSERT(!m_pagePopup);
WebWidget* popupWidget = m_client->createPopupMenu(WebPopupTypePage);
ASSERT(popupWidget);
m_pagePopup = static_cast<WebPagePopupImpl*>(popupWidget);
if (!m_pagePopup->init(this, client, originBoundsInRootView)) {
m_pagePopup->closePopup();
m_pagePopup = 0;
}
return m_pagePopup.get();
}
void WebViewImpl::closePagePopup(PagePopup* popup)
{
ASSERT(popup);
WebPagePopupImpl* popupImpl = static_cast<WebPagePopupImpl*>(popup);
ASSERT(m_pagePopup.get() == popupImpl);
if (m_pagePopup.get() != popupImpl)
return;
m_pagePopup->closePopup();
m_pagePopup = 0;
}
#endif
void WebViewImpl::hideAutofillPopup()
{
if (m_autofillPopupShowing) {
m_autofillPopup->hidePopup();
m_autofillPopupShowing = false;
}
}
WebHelperPluginImpl* WebViewImpl::createHelperPlugin(const String& pluginType)
{
WebWidget* popupWidget = m_client->createPopupMenu(WebPopupTypeHelperPlugin);
ASSERT(popupWidget);
WebHelperPluginImpl* helperPlugin = static_cast<WebHelperPluginImpl*>(popupWidget);
if (!helperPlugin->init(this, pluginType)) {
helperPlugin->closeHelperPlugin();
helperPlugin = 0;
}
return helperPlugin;
}
Frame* WebViewImpl::focusedWebCoreFrame() const
{
return m_page ? m_page->focusController()->focusedOrMainFrame() : 0;
}
WebViewImpl* WebViewImpl::fromPage(Page* page)
{
if (!page)
return 0;
ChromeClientImpl* chromeClient = static_cast<ChromeClientImpl*>(page->chrome()->client());
return static_cast<WebViewImpl*>(chromeClient->webView());
}
PageGroup* WebViewImpl::defaultPageGroup()
{
return PageGroup::pageGroup(pageGroupName);
}
// WebWidget ------------------------------------------------------------------
void WebViewImpl::close()
{
RefPtr<WebFrameImpl> mainFrameImpl;
if (m_page) {
// Initiate shutdown for the entire frameset. This will cause a lot of
// notifications to be sent.
if (m_page->mainFrame()) {
mainFrameImpl = WebFrameImpl::fromFrame(m_page->mainFrame());
m_page->mainFrame()->loader()->frameDetached();
}
m_page.clear();
}
// Should happen after m_page.clear().
if (m_devToolsAgent)
m_devToolsAgent.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()
{
if (mainFrameImpl() && mainFrameImpl()->frameView())
mainFrameImpl()->frameView()->willStartLiveResize();
Frame* frame = mainFrameImpl()->frame();
WebPluginContainerImpl* pluginContainer = WebFrameImpl::pluginContainerFromFrame(frame);
if (pluginContainer)
pluginContainer->willStartLiveResize();
}
void WebViewImpl::resize(const WebSize& newSize)
{
if (m_shouldAutoResize || m_size == newSize)
return;
FrameView* view = mainFrameImpl()->frameView();
if (!view)
return;
WebSize oldSize = m_size;
float oldPageScaleFactor = pageScaleFactor();
IntSize oldScrollOffset = view->scrollOffset();
int oldFixedLayoutWidth = fixedLayoutSize().width;
m_size = newSize;
#if ENABLE(VIEWPORT)
if (settings()->viewportEnabled()) {
// Fallback width is used to layout sites designed for desktop. The
// conventional size used by all mobile browsers is 980. When a mobile
// device has a particularly wide screen (such as a 10" tablet held in
// landscape), it can be larger.
const int standardFallbackWidth = 980;
int dpiIndependentViewportWidth = newSize.width / page()->deviceScaleFactor();
settings()->setLayoutFallbackWidth(std::max(standardFallbackWidth, dpiIndependentViewportWidth));
ViewportArguments viewportArguments = mainFrameImpl()->frame()->document()->viewportArguments();
m_page->chrome()->client()->dispatchViewportPropertiesDidChange(viewportArguments);
}
#endif
WebDevToolsAgentPrivate* agentPrivate = devToolsAgentPrivate();
if (agentPrivate)
agentPrivate->webViewResized(newSize);
if (!agentPrivate || !agentPrivate->metricsOverridden()) {
WebFrameImpl* webFrame = mainFrameImpl();
if (webFrame->frameView())
webFrame->frameView()->resize(newSize.width, newSize.height);
}
#if ENABLE(VIEWPORT)
if (settings()->viewportEnabled()) {
// Relayout immediately to obtain the new content width, which is needed
// to calculate the minimum scale limit.
view->layout();
computePageScaleFactorLimits();
// When the device rotates:
// - If the page width is unchanged, then zoom by new width/old width
// such as to keep the same content horizontally onscreen.
// - If the page width stretches proportionally to the change in
// screen width, then don't zoom at all (assuming the content has
// scaled uniformly, then the same content will be horizontally
// onscreen).
// - If the page width partially stretches, then zoom partially to
// make up the difference.
// In all cases try to keep the same content at the top of the screen.
float viewportWidthRatio = !oldSize.width ? 1 : newSize.width / (float) oldSize.width;
float fixedLayoutWidthRatio = !oldFixedLayoutWidth ? 1 : fixedLayoutSize().width / (float) oldFixedLayoutWidth;
float scaleMultiplier = viewportWidthRatio / fixedLayoutWidthRatio;
if (scaleMultiplier != 1) {
IntSize scrollOffsetAtNewScale = oldScrollOffset;
scrollOffsetAtNewScale.scale(scaleMultiplier);
setPageScaleFactor(oldPageScaleFactor * scaleMultiplier, IntPoint(scrollOffsetAtNewScale));
}
}
#endif
sendResizeEventAndRepaint();
}
void WebViewImpl::willEndLiveResize()
{
if (mainFrameImpl() && mainFrameImpl()->frameView())
mainFrameImpl()->frameView()->willEndLiveResize();
Frame* frame = mainFrameImpl()->frame();
WebPluginContainerImpl* pluginContainer = WebFrameImpl::pluginContainerFromFrame(frame);
if (pluginContainer)
pluginContainer->willEndLiveResize();
}
void WebViewImpl::willEnterFullScreen()
{
#if ENABLE(FULLSCREEN_API)
if (!m_provisionalFullScreenElement)
return;
// Ensure that this element's document is still attached.
Document* doc = m_provisionalFullScreenElement->document();
if (doc->frame()) {
doc->webkitWillEnterFullScreenForElement(m_provisionalFullScreenElement.get());
m_fullScreenFrame = doc->frame();
}
m_provisionalFullScreenElement.clear();
#endif
}
void WebViewImpl::didEnterFullScreen()
{
#if ENABLE(FULLSCREEN_API)
if (!m_fullScreenFrame)
return;
if (Document* doc = m_fullScreenFrame->document()) {
if (doc->webkitIsFullScreen())
doc->webkitDidEnterFullScreenForElement(0);
}
#endif
}
void WebViewImpl::willExitFullScreen()
{
#if ENABLE(FULLSCREEN_API)
if (!m_fullScreenFrame)
return;
if (Document* doc = m_fullScreenFrame->document()) {
if (doc->webkitIsFullScreen()) {
// When the client exits from full screen we have to call webkitCancelFullScreen to
// notify the document. While doing that, suppress notifications back to the client.
m_isCancelingFullScreen = true;
doc->webkitCancelFullScreen();
m_isCancelingFullScreen = false;
doc->webkitWillExitFullScreenForElement(0);
}
}
#endif
}
void WebViewImpl::didExitFullScreen()
{
#if ENABLE(FULLSCREEN_API)
if (!m_fullScreenFrame)
return;
if (Document* doc = m_fullScreenFrame->document()) {
if (doc->webkitIsFullScreen())
doc->webkitDidExitFullScreenForElement(0);
}
m_fullScreenFrame.clear();
#endif
}
void WebViewImpl::instrumentBeginFrame()
{
InspectorInstrumentation::didBeginFrame(m_page.get());
}
void WebViewImpl::instrumentCancelFrame()
{
InspectorInstrumentation::didCancelFrame(m_page.get());
}
#if ENABLE(BATTERY_STATUS)
void WebViewImpl::updateBatteryStatus(const WebBatteryStatus& status)
{
m_batteryClient->updateBatteryStatus(status);
}
#endif
void WebViewImpl::setCompositorSurfaceReady()
{
m_compositorSurfaceReady = true;
if (m_layerTreeView)
m_layerTreeView->setSurfaceReady();
}
void WebViewImpl::animate(double)
{
#if ENABLE(REQUEST_ANIMATION_FRAME)
double monotonicFrameBeginTime = monotonicallyIncreasingTime();
#if USE(ACCELERATED_COMPOSITING)
// In composited mode, we always go through the compositor so it can apply
// appropriate flow-control mechanisms.
if (isAcceleratedCompositingActive())
m_layerTreeView->updateAnimations(monotonicFrameBeginTime);
else
#endif
updateAnimations(monotonicFrameBeginTime);
#endif
}
void WebViewImpl::willBeginFrame()
{
instrumentBeginFrame();
m_client->willBeginCompositorFrame();
}
void WebViewImpl::didBeginFrame()
{
InspectorInstrumentation::didComposite(m_page.get());
}
void WebViewImpl::updateAnimations(double monotonicFrameBeginTime)
{
#if ENABLE(REQUEST_ANIMATION_FRAME)
TRACE_EVENT0("webkit", "WebViewImpl::updateAnimations");
// Create synthetic wheel events as necessary for fling.
if (m_gestureAnimation) {
if (m_gestureAnimation->animate(monotonicFrameBeginTime))
scheduleAnimation();
else
m_gestureAnimation.clear();
}
if (!m_page)
return;
PageWidgetDelegate::animate(m_page.get(), monotonicFrameBeginTime);
#endif
}
void WebViewImpl::layout()
{
TRACE_EVENT0("webkit", "WebViewImpl::layout");
PageWidgetDelegate::layout(m_page.get());
if (m_linkHighlight)
m_linkHighlight->updateGeometry();
}
void WebViewImpl::enterForceCompositingMode(bool enter)
{
TRACE_EVENT1("webkit", "WebViewImpl::enterForceCompositingMode", "enter", enter);
settingsImpl()->setForceCompositingMode(enter);
if (enter) {
if (!m_page)
return;
Frame* mainFrame = m_page->mainFrame();
if (!mainFrame)
return;
mainFrame->view()->updateCompositingLayersAfterStyleChange();
}
}
#if USE(ACCELERATED_COMPOSITING)
void WebViewImpl::doPixelReadbackToCanvas(WebCanvas* canvas, const IntRect& rect)
{
ASSERT(m_layerTreeView);
SkBitmap target;
target.setConfig(SkBitmap::kARGB_8888_Config, rect.width(), rect.height(), rect.width() * 4);
target.allocPixels();
m_layerTreeView->compositeAndReadback(target.getPixels(), rect);
#if (!SK_R32_SHIFT && SK_B32_SHIFT == 16)
// The compositor readback always gives back pixels in BGRA order, but for
// example Android's Skia uses RGBA ordering so the red and blue channels
// need to be swapped.
uint8_t* pixels = reinterpret_cast<uint8_t*>(target.getPixels());
for (size_t i = 0; i < target.getSize(); i += 4)
std::swap(pixels[i], pixels[i + 2]);
#endif
canvas->writePixels(target, rect.x(), rect.y());
}
#endif
void WebViewImpl::paint(WebCanvas* canvas, const WebRect& rect, PaintOptions option)
{
#if !OS(ANDROID)
// ReadbackFromCompositorIfAvailable is the only option available on non-Android.
// Ideally, Android would always use ReadbackFromCompositorIfAvailable as well.
ASSERT(option == ReadbackFromCompositorIfAvailable);
#endif
if (option == ReadbackFromCompositorIfAvailable && isAcceleratedCompositingActive()) {
#if USE(ACCELERATED_COMPOSITING)
// If a canvas was passed in, we use it to grab a copy of the
// freshly-rendered pixels.
if (canvas) {
// Clip rect to the confines of the rootLayerTexture.
IntRect resizeRect(rect);
resizeRect.intersect(IntRect(IntPoint(0, 0), m_layerTreeView->deviceViewportSize()));
doPixelReadbackToCanvas(canvas, resizeRect);
}
#endif
} else {
FrameView* view = page()->mainFrame()->view();
PaintBehavior oldPaintBehavior = view->paintBehavior();
if (isAcceleratedCompositingActive()) {
ASSERT(option == ForceSoftwareRenderingAndIgnoreGPUResidentContent);
view->setPaintBehavior(oldPaintBehavior | PaintBehaviorFlattenCompositingLayers);
}
double paintStart = currentTime();
PageWidgetDelegate::paint(m_page.get(), pageOverlays(), canvas, rect, isTransparent() ? PageWidgetDelegate::Translucent : PageWidgetDelegate::Opaque);
double paintEnd = currentTime();
double pixelsPerSec = (rect.width * rect.height) / (paintEnd - paintStart);
WebKit::Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintDurationMS", (paintEnd - paintStart) * 1000, 0, 120, 30);
WebKit::Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintMegapixPerSecond", pixelsPerSec / 1000000, 10, 210, 30);
if (isAcceleratedCompositingActive()) {
ASSERT(option == ForceSoftwareRenderingAndIgnoreGPUResidentContent);
view->setPaintBehavior(oldPaintBehavior);
}
}
}
bool WebViewImpl::isTrackingRepaints() const
{
if (!page())
return false;
FrameView* view = page()->mainFrame()->view();
return view->isTrackingRepaints();
}
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::composite(bool)
{
#if USE(ACCELERATED_COMPOSITING)
if (Platform::current()->compositorSupport()->isThreadingEnabled())
m_layerTreeView->setNeedsRedraw();
else {
ASSERT(isAcceleratedCompositingActive());
if (!page())
return;
m_layerTreeView->composite();
}
#endif
}
void WebViewImpl::setNeedsRedraw()
{
#if USE(ACCELERATED_COMPOSITING)
if (m_layerTreeView && isAcceleratedCompositingActive())
m_layerTreeView->setNeedsRedraw();
#endif
}
bool WebViewImpl::isInputThrottled() const
{
#if USE(ACCELERATED_COMPOSITING)
if (m_layerTreeView && isAcceleratedCompositingActive())
return m_layerTreeView->commitRequested();
#endif
return false;
}
void WebViewImpl::loseCompositorContext(int numTimes)
{
#if USE(ACCELERATED_COMPOSITING)
if (m_layerTreeView)
m_layerTreeView->loseCompositorContext(numTimes);
#endif
}
void WebViewImpl::enterFullScreenForElement(WebCore::Element* element)
{
// We are already transitioning to fullscreen for a different element.
if (m_provisionalFullScreenElement) {
m_provisionalFullScreenElement = element;
return;
}
// We are already in fullscreen mode.
if (m_fullScreenFrame) {
m_provisionalFullScreenElement = element;
willEnterFullScreen();
didEnterFullScreen();
return;
}
#if USE(NATIVE_FULLSCREEN_VIDEO)
if (element && element->isMediaElement()) {
HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(element);
if (mediaElement->player() && mediaElement->player()->canEnterFullscreen()) {
mediaElement->player()->enterFullscreen();
m_provisionalFullScreenElement = element;
}
return;
}
#endif
// We need to transition to fullscreen mode.
if (m_client && m_client->enterFullScreen())
m_provisionalFullScreenElement = element;
}
void WebViewImpl::exitFullScreenForElement(WebCore::Element* element)
{
// The client is exiting full screen, so don't send a notification.
if (m_isCancelingFullScreen)
return;
#if USE(NATIVE_FULLSCREEN_VIDEO)
if (element && element->isMediaElement()) {
HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(element);
if (mediaElement->player())
mediaElement->player()->exitFullscreen();
return;
}
#endif
if (m_client)
m_client->exitFullScreen();
}
bool WebViewImpl::hasHorizontalScrollbar()
{
return mainFrameImpl()->frameView()->horizontalScrollbar();
}
bool WebViewImpl::hasVerticalScrollbar()
{
return mainFrameImpl()->frameView()->verticalScrollbar();
}
const WebInputEvent* WebViewImpl::m_currentInputEvent = 0;
bool WebViewImpl::handleInputEvent(const WebInputEvent& inputEvent)
{
// 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 ENABLE(POINTER_LOCK)
if (isPointerLocked() && WebInputEvent::isMouseEventType(inputEvent.type)) {
pointerLockMouseEvent(inputEvent);
return true;
}
#endif
if (m_mouseCaptureNode && WebInputEvent::isMouseEventType(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();
AtomicString eventType;
switch (inputEvent.type) {
case WebInputEvent::MouseMove:
eventType = eventNames().mousemoveEvent;
break;
case WebInputEvent::MouseLeave:
eventType = eventNames().mouseoutEvent;
break;
case WebInputEvent::MouseDown:
eventType = eventNames().mousedownEvent;
break;
case WebInputEvent::MouseUp:
eventType = eventNames().mouseupEvent;
break;
default:
ASSERT_NOT_REACHED();
}
node->dispatchMouseEvent(
PlatformMouseEventBuilder(mainFrameImpl()->frameView(), *static_cast<const WebMouseEvent*>(&inputEvent)),
eventType, static_cast<const WebMouseEvent*>(&inputEvent)->clickCount);
return true;
}
if (!m_layerTreeView)
return PageWidgetDelegate::handleInputEvent(m_page.get(), *this, inputEvent);
const WebInputEvent* inputEventTransformed = &inputEvent;
WebMouseEvent mouseEvent;
WebGestureEvent gestureEvent;
if (WebInputEvent::isMouseEventType(inputEvent.type)) {
mouseEvent = *static_cast<const WebMouseEvent*>(&inputEvent);
IntPoint transformedLocation = roundedIntPoint(m_layerTreeView->adjustEventPointForPinchZoom(WebFloatPoint(mouseEvent.x, mouseEvent.y)));
mouseEvent.x = transformedLocation.x();
mouseEvent.y = transformedLocation.y();
inputEventTransformed = static_cast<const WebInputEvent*>(&mouseEvent);
} else if (WebInputEvent::isGestureEventType(inputEvent.type)) {
gestureEvent = *static_cast<const WebGestureEvent*>(&inputEvent);
IntPoint transformedLocation = roundedIntPoint(m_layerTreeView->adjustEventPointForPinchZoom(WebFloatPoint(gestureEvent.x, gestureEvent.y)));
gestureEvent.x = transformedLocation.x();
gestureEvent.y = transformedLocation.y();
inputEventTransformed = static_cast<const WebInputEvent*>(&gestureEvent);
}
bool handled = PageWidgetDelegate::handleInputEvent(m_page.get(), *this, *inputEventTransformed);
return handled;
}
void WebViewImpl::mouseCaptureLost()
{
m_mouseCaptureNode = 0;
}
void WebViewImpl::setFocus(bool enable)
{
m_page->focusController()->setFocused(enable);
if (enable) {
m_page->focusController()->setActive(true);
RefPtr<Frame> focusedFrame = m_page->focusController()->focusedFrame();
if (focusedFrame) {
Node* focusedNode = focusedFrame->document()->focusedNode();
if (focusedNode && focusedNode->isElementNode()
&& focusedFrame->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.
Element* element = static_cast<Element*>(focusedNode);
if (element->isTextFormControl())
element->updateFocusAppearance(true);
else if (focusedNode->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(focusedNode, 0,
Position::PositionIsOffsetInAnchor);
focusedFrame->selection()->setSelection(
VisibleSelection(position, SEL_DEFAULT_AFFINITY));
}
}
}
m_imeAcceptEvents = true;
} else {
hidePopups();
// Clear focus on the currently focused frame if any.
if (!m_page)
return;
Frame* frame = m_page->mainFrame();
if (!frame)
return;
RefPtr<Frame> focusedFrame = m_page->focusController()->focusedFrame();
if (focusedFrame) {
// Finish an ongoing composition to delete the composition node.
Editor* editor = focusedFrame->editor();
if (editor && editor->hasComposition())
editor->confirmComposition();
m_imeAcceptEvents = false;
}
}
}
bool WebViewImpl::setComposition(
const WebString& text,
const WebVector<WebCompositionUnderline>& underlines,
int selectionStart,
int selectionEnd)
{
Frame* focused = focusedWebCoreFrame();
if (!focused || !m_imeAcceptEvents)
return false;
Editor* editor = focused->editor();
if (!editor)
return false;
// The input focus has been moved to another WebWidget object.
// We should use this |editor| object only to complete the ongoing
// composition.
if (!editor->canEdit() && !editor->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.
PassRefPtr<Range> range = editor->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;
editor->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.
editor->setComposition(String(text),
CompositionUnderlineVectorBuilder(underlines),
selectionStart, selectionEnd);
return editor->hasComposition();
}
bool WebViewImpl::confirmComposition()
{
return confirmComposition(WebString());
}
bool WebViewImpl::confirmComposition(const WebString& text)
{
Frame* focused = focusedWebCoreFrame();
if (!focused || !m_imeAcceptEvents)
return false;
Editor* editor = focused->editor();
if (!editor || (!editor->hasComposition() && !text.length()))
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.
PassRefPtr<Range> range = editor->compositionRange();
if (range) {
Node* node = range->startContainer();
if (!node || !node->isContentEditable())
return false;
}
if (editor->hasComposition()) {
if (text.length())
editor->confirmComposition(String(text));
else
editor->confirmComposition();
} else
editor->insertText(String(text), 0);
return true;
}
bool WebViewImpl::compositionRange(size_t* location, size_t* length)
{
Frame* focused = focusedWebCoreFrame();
if (!focused || !focused->selection() || !m_imeAcceptEvents)
return false;
Editor* editor = focused->editor();
if (!editor || !editor->hasComposition())
return false;
RefPtr<Range> range = editor->compositionRange();
if (!range)
return false;
if (TextIterator::getLocationAndLengthFromRange(focused->selection()->rootEditableElementOrDocumentElement(), range.get(), *location, *length))
return true;
return false;
}
WebTextInputInfo WebViewImpl::textInputInfo()
{
WebTextInputInfo info;
Frame* focused = focusedWebCoreFrame();
if (!focused)
return info;
Editor* editor = focused->editor();
if (!editor || !editor->canEdit())
return info;
FrameSelection* selection = focused->selection();
if (!selection)
return info;
Node* node = selection->selection().rootEditableElement();
if (!node)
return info;
info.type = textInputType();
if (info.type == WebTextInputTypeNone)
return info;
info.value = plainText(rangeOfContents(node).get());
if (info.value.isEmpty())
return info;
size_t location;
size_t length;
RefPtr<Range> range = selection->selection().firstRange();
if (range && TextIterator::getLocationAndLengthFromRange(selection->rootEditableElement(), range.get(), location, length)) {
info.selectionStart = location;
info.selectionEnd = location + length;
}
range = editor->compositionRange();
if (range && TextIterator::getLocationAndLengthFromRange(selection->rootEditableElement(), range.get(), location, length)) {
info.compositionStart = location;
info.compositionEnd = location + length;
}
return info;
}
WebTextInputType WebViewImpl::textInputType()
{
Node* node = focusedWebCoreNode();
if (!node)
return WebTextInputTypeNone;
if (node->hasTagName(HTMLNames::inputTag)) {
HTMLInputElement* input = static_cast<HTMLInputElement*>(node);
if (input->readOnly() || input->disabled())
return WebTextInputTypeNone;
if (input->isPasswordField())
return WebTextInputTypePassword;
if (input->isSearchField())
return WebTextInputTypeSearch;
if (input->isEmailField())
return WebTextInputTypeEmail;
if (input->isNumberField())
return WebTextInputTypeNumber;
if (input->isTelephoneField())
return WebTextInputTypeTelephone;
if (input->isURLField())
return WebTextInputTypeURL;
if (input->isDateField())
return WebTextInputTypeDate;
if (input->isDateTimeField())
return WebTextInputTypeDateTime;
if (input->isDateTimeLocalField())
return WebTextInputTypeDateTimeLocal;
if (input->isMonthField())
return WebTextInputTypeMonth;
if (input->isTimeField())
return WebTextInputTypeTime;
if (input->isWeekField())
return WebTextInputTypeWeek;
if (input->isTextField())
return WebTextInputTypeText;
return WebTextInputTypeNone;
}
if (node->hasTagName(HTMLNames::textareaTag)) {
HTMLTextAreaElement* textarea = static_cast<HTMLTextAreaElement*>(node);
if (textarea->readOnly() || textarea->disabled())
return WebTextInputTypeNone;
return WebTextInputTypeTextArea;
}
if (node->shouldUseInputMethod())
return WebTextInputTypeContentEditable;
return WebTextInputTypeNone;
}
bool WebViewImpl::selectionBounds(WebRect& anchor, WebRect& focus) const
{
const Frame* frame = focusedWebCoreFrame();
if (!frame)
return false;
FrameSelection* selection = frame->selection();
if (!selection)
return false;
if (selection->isCaret()) {
anchor = focus = frame->view()->contentsToWindow(selection->absoluteCaretBounds());
return true;
}
RefPtr<Range> selectedRange = frame->selection()->toNormalizedRange();
if (!selectedRange)
return false;
RefPtr<Range> range(Range::create(selectedRange->startContainer()->document(),
selectedRange->startContainer(),
selectedRange->startOffset(),
selectedRange->startContainer(),
selectedRange->startOffset()));
anchor = frame->editor()->firstRectForRange(range.get());
range = Range::create(selectedRange->endContainer()->document(),
selectedRange->endContainer(),
selectedRange->endOffset(),
selectedRange->endContainer(),
selectedRange->endOffset());
focus = frame->editor()->firstRectForRange(range.get());
anchor = frame->view()->contentsToWindow(anchor);
focus = frame->view()->contentsToWindow(focus);
if (!frame->selection()->selection().isBaseFirst())
std::swap(anchor, focus);
return true;
}
bool WebViewImpl::selectionTextDirection(WebTextDirection& start, WebTextDirection& end) const
{
const Frame* frame = focusedWebCoreFrame();
if (!frame)
return false;
FrameSelection* selection = frame->selection();
if (!selection)
return false;
if (!selection->toNormalizedRange())
return false;
start = selection->start().primaryDirection() == RTL ? WebTextDirectionRightToLeft : WebTextDirectionLeftToRight;
end = selection->end().primaryDirection() == RTL ? WebTextDirectionRightToLeft : WebTextDirectionLeftToRight;
return true;
}
bool WebViewImpl::setEditableSelectionOffsets(int start, int end)
{
const Frame* focused = focusedWebCoreFrame();
if (!focused)
return false;
Editor* editor = focused->editor();
if (!editor || !editor->canEdit())
return false;
return editor->setSelectionOffsets(start, end);
}
bool WebViewImpl::setCompositionFromExistingText(int compositionStart, int compositionEnd, const WebVector<WebCompositionUnderline>& underlines)
{
const Frame* focused = focusedWebCoreFrame();
if (!focused)
return false;
Editor* editor = focused->editor();
if (!editor || !editor->canEdit())
return false;
editor->cancelComposition();
if (compositionStart == compositionEnd)
return true;
size_t location;
size_t length;
caretOrSelectionRange(&location, &length);
editor->setIgnoreCompositionSelectionChange(true);
editor->setSelectionOffsets(compositionStart, compositionEnd);
String text = editor->selectedText();
focused->document()->execCommand("delete", true);
editor->setComposition(text, CompositionUnderlineVectorBuilder(underlines), 0, 0);
editor->setSelectionOffsets(location, location + length);
editor->setIgnoreCompositionSelectionChange(false);
return true;
}
void WebViewImpl::extendSelectionAndDelete(int before, int after)
{
const Frame* focused = focusedWebCoreFrame();
if (!focused)
return;
Editor* editor = focused->editor();
if (!editor || !editor->canEdit())
return;
FrameSelection* selection = focused->selection();
if (!selection)
return;
size_t location;
size_t length;
RefPtr<Range> range = selection->selection().firstRange();
if (range && TextIterator::getLocationAndLengthFromRange(selection->rootEditableElement(), range.get(), location, length)) {
editor->setSelectionOffsets(max(static_cast<int>(location) - before, 0), location + length + after);
focused->document()->execCommand("delete", true);
}
}
bool WebViewImpl::isSelectionEditable() const
{
const Frame* frame = focusedWebCoreFrame();
if (!frame)
return false;
return frame->selection()->isContentEditable();
}
WebColor WebViewImpl::backgroundColor() const
{
if (!m_page)
return Color::white;
FrameView* view = m_page->mainFrame()->view();
Color backgroundColor = view->documentBackgroundColor();
if (!backgroundColor.isValid())
return Color::white;
return backgroundColor.rgb();
}
bool WebViewImpl::caretOrSelectionRange(size_t* location, size_t* length)
{
const Frame* focused = focusedWebCoreFrame();
if (!focused)
return false;
FrameSelection* selection = focused->selection();
if (!selection)
return false;
RefPtr<Range> range = selection->selection().firstRange();
if (!range)
return false;
if (TextIterator::getLocationAndLengthFromRange(selection->rootEditableElementOrDocumentElement(), range.get(), *location, *length))
return true;
return false;
}
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 Frame* focused = focusedWebCoreFrame();
if (!focused)
return;
Editor* editor = focused->editor();
if (!editor || !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
{
#if USE(ACCELERATED_COMPOSITING)
return m_isAcceleratedCompositingActive;
#else
return false;
#endif
}
void WebViewImpl::didAcquirePointerLock()
{
#if ENABLE(POINTER_LOCK)
if (page())
page()->pointerLockController()->didAcquirePointerLock();
#endif
}
void WebViewImpl::didNotAcquirePointerLock()
{
#if ENABLE(POINTER_LOCK)
if (page())
page()->pointerLockController()->didNotAcquirePointerLock();
#endif
}
void WebViewImpl::didLosePointerLock()
{
#if ENABLE(POINTER_LOCK)
if (page())
page()->pointerLockController()->didLosePointerLock();
#endif
}
void WebViewImpl::didChangeWindowResizerRect()
{
if (mainFrameImpl()->frameView())
mainFrameImpl()->frameView()->windowResizerRectChanged();
}
// 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
{
if (!m_page)
return WebString();
// FIXME: Is this check needed?
if (!m_page->mainFrame()->document()->loader())
return WebString();
return m_page->mainFrame()->document()->encoding();
}
void WebViewImpl::setPageEncoding(const WebString& encodingName)
{
if (!m_page)
return;
// Only change override encoding, don't change default encoding.
// Note that the new encoding must be 0 if it isn't supposed to be set.
String newEncodingName;
if (!encodingName.isEmpty())
newEncodingName = encodingName;
m_page->mainFrame()->loader()->reloadWithOverrideEncoding(newEncodingName);
}
bool WebViewImpl::dispatchBeforeUnloadEvent()
{
// FIXME: This should really cause a recursive depth-first walk of all
// frames in the tree, calling each frame's onbeforeunload. At the moment,
// we're consistent with Safari 3.1, not IE/FF.
Frame* frame = m_page->mainFrame();
if (!frame)
return true;
return frame->loader()->shouldClose();
}
void WebViewImpl::dispatchUnloadEvent()
{
// Run unload handlers.
m_page->mainFrame()->loader()->closeURL();
}
WebFrame* WebViewImpl::mainFrame()
{
return mainFrameImpl();
}
WebFrame* WebViewImpl::findFrameByName(
const WebString& name, WebFrame* relativeToFrame)
{
if (!relativeToFrame)
relativeToFrame = mainFrame();
Frame* frame = static_cast<WebFrameImpl*>(relativeToFrame)->frame();
frame = frame->tree()->find(name);
return WebFrameImpl::fromFrame(frame);
}
WebFrame* WebViewImpl::focusedFrame()
{
return WebFrameImpl::fromFrame(focusedWebCoreFrame());
}
void WebViewImpl::setFocusedFrame(WebFrame* frame)
{
if (!frame) {
// Clears the focused frame if any.
Frame* frame = focusedWebCoreFrame();
if (frame)
frame->selection()->setFocused(false);
return;
}
WebFrameImpl* frameImpl = static_cast<WebFrameImpl*>(frame);
Frame* webcoreFrame = frameImpl->frame();
webcoreFrame->page()->focusController()->setFocusedFrame(webcoreFrame);
}
void WebViewImpl::setInitialFocus(bool reverse)
{
if (!m_page)
return;
// Since we don't have a keyboard event, we'll create one.
WebKeyboardEvent keyboardEvent;
keyboardEvent.type = WebInputEvent::RawKeyDown;
if (reverse)
keyboardEvent.modifiers = WebInputEvent::ShiftKey;
// VK_TAB which is only defined on Windows.
keyboardEvent.windowsKeyCode = 0x09;
PlatformKeyboardEventBuilder platformEvent(keyboardEvent);
RefPtr<KeyboardEvent> webkitEvent = KeyboardEvent::create(platformEvent, 0);
Frame* frame = page()->focusController()->focusedOrMainFrame();
if (Document* document = frame->document())
document->setFocusedNode(0);
page()->focusController()->setInitialFocus(
reverse ? FocusDirectionBackward : FocusDirectionForward,
webkitEvent.get());
}
void WebViewImpl::clearFocusedNode()
{
RefPtr<Frame> frame = focusedWebCoreFrame();
if (!frame)
return;
RefPtr<Document> document = frame->document();
if (!document)
return;
RefPtr<Node> oldFocusedNode = document->focusedNode();
// Clear the focused node.
document->setFocusedNode(0);
if (!oldFocusedNode)
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 (oldFocusedNode->isContentEditable()
|| (oldFocusedNode->isElementNode()
&& static_cast<Element*>(oldFocusedNode.get())->isTextFormControl())) {
frame->selection()->clear();
}
}
void WebViewImpl::scrollFocusedNodeIntoView()
{
Node* focusedNode = focusedWebCoreNode();
if (focusedNode && focusedNode->isElementNode()) {
Element* elementNode = static_cast<Element*>(focusedNode);
elementNode->scrollIntoViewIfNeeded(true);
}
}
void WebViewImpl::scrollFocusedNodeIntoRect(const WebRect& rect)
{
Frame* frame = page()->mainFrame();
Node* focusedNode = focusedWebCoreNode();
if (!frame || !frame->view() || !focusedNode || !focusedNode->isElementNode())
return;
if (!m_webSettings->autoZoomFocusedNodeToLegibleScale()) {
Element* elementNode = static_cast<Element*>(focusedNode);
frame->view()->scrollElementToRect(elementNode, IntRect(rect.x, rect.y, rect.width, rect.height));
return;
}
#if ENABLE(GESTURE_EVENTS)
focusedNode->document()->updateLayoutIgnorePendingStylesheets();
// 'caret' is rect encompassing the blinking cursor.
IntRect textboxRect = focusedNode->document()->view()->contentsToWindow(pixelSnappedIntRect(focusedNode->Node::boundingBox()));
WebRect caret, end;
selectionBounds(caret, end);
// Pick a scale which is reasonably readable. This is the scale at which
// the caret height will become minReadableCaretHeight (adjusted for dpi
// and font scale factor).
float targetScale = deviceScaleFactor();
#if ENABLE(TEXT_AUTOSIZING)
if (page() && page()->settings())
targetScale *= page()->settings()->textAutosizingFontScaleFactor();
#endif
const float newScale = clampPageScaleFactorToLimits(pageScaleFactor() * minReadableCaretHeight * targetScale / caret.height);
const float deltaScale = newScale / pageScaleFactor();
// Convert the rects to absolute space in the new scale.
IntRect textboxRectInDocumentCoordinates = textboxRect;
textboxRectInDocumentCoordinates.move(mainFrame()->scrollOffset());
textboxRectInDocumentCoordinates.scale(deltaScale);
IntRect caretInDocumentCoordinates = caret;
caretInDocumentCoordinates.move(mainFrame()->scrollOffset());
caretInDocumentCoordinates.scale(deltaScale);
IntPoint newOffset;
if (textboxRectInDocumentCoordinates.width() <= m_size.width) {
// Field is narrower than screen. Try to leave padding on left so field's
// label is visible, but it's more important to ensure entire field is
// onscreen.
int idealLeftPadding = m_size.width * leftBoxRatio;
int maxLeftPaddingKeepingBoxOnscreen = m_size.width - textboxRectInDocumentCoordinates.width();
newOffset.setX(textboxRectInDocumentCoordinates.x() - min<int>(idealLeftPadding, maxLeftPaddingKeepingBoxOnscreen));
} else {
// Field is wider than screen. Try to left-align field, unless caret would
// be offscreen, in which case right-align the caret.
newOffset.setX(max<int>(textboxRectInDocumentCoordinates.x(), caretInDocumentCoordinates.x() + caretInDocumentCoordinates.width() + caretPadding - m_size.width));
}
if (textboxRectInDocumentCoordinates.height() <= m_size.height) {
// Field is shorter than screen. Vertically center it.
newOffset.setY(textboxRectInDocumentCoordinates.y() - (m_size.height - textboxRectInDocumentCoordinates.height()) / 2);
} else {
// Field is taller than screen. Try to top align field, unless caret would
// be offscreen, in which case bottom-align the caret.
newOffset.setY(max<int>(textboxRectInDocumentCoordinates.y(), caretInDocumentCoordinates.y() + caretInDocumentCoordinates.height() + caretPadding - m_size.height));
}
bool needAnimation = false;
// If we are at less than the target zoom level, zoom in.
if (deltaScale > minScaleChangeToTriggerZoom)
needAnimation = true;
// If the caret is offscreen, then animate.
IntRect sizeRect(0, 0, m_size.width, m_size.height);
if (!sizeRect.contains(caret))
needAnimation = true;
// If the box is partially offscreen and it's possible to bring it fully
// onscreen, then animate.
if (sizeRect.contains(textboxRectInDocumentCoordinates.width(), textboxRectInDocumentCoordinates.height()) && !sizeRect.contains(textboxRect))
needAnimation = true;
if (needAnimation)
startPageScaleAnimation(newOffset, false, newScale, scrollAndScaleAnimationDurationInSeconds);
#endif
}
void WebViewImpl::advanceFocus(bool reverse)
{
page()->focusController()->advanceFocus(reverse ? FocusDirectionBackward : FocusDirectionForward, 0);
}
double WebViewImpl::zoomLevel()
{
return m_zoomLevel;
}
double WebViewImpl::setZoomLevel(bool textOnly, double zoomLevel)
{
if (zoomLevel < m_minimumZoomLevel)
m_zoomLevel = m_minimumZoomLevel;
else if (zoomLevel > m_maximumZoomLevel)
m_zoomLevel = m_maximumZoomLevel;
else
m_zoomLevel = zoomLevel;
Frame* frame = mainFrameImpl()->frame();
WebPluginContainerImpl* pluginContainer = WebFrameImpl::pluginContainerFromFrame(frame);
if (pluginContainer)
pluginContainer->plugin()->setZoomLevel(m_zoomLevel, textOnly);
else {
float zoomFactor = static_cast<float>(zoomLevelToZoomFactor(m_zoomLevel));
if (textOnly)
frame->setPageAndTextZoomFactors(1, zoomFactor * m_emulatedTextZoomFactor);
else
frame->setPageAndTextZoomFactors(zoomFactor, m_emulatedTextZoomFactor);
}
return m_zoomLevel;
}
void WebViewImpl::zoomLimitsChanged(double minimumZoomLevel,
double maximumZoomLevel)
{
m_minimumZoomLevel = minimumZoomLevel;
m_maximumZoomLevel = maximumZoomLevel;
m_client->zoomLimitsChanged(m_minimumZoomLevel, m_maximumZoomLevel);
}
void WebViewImpl::fullFramePluginZoomLevelChanged(double zoomLevel)
{
if (zoomLevel == m_zoomLevel)
return;
m_zoomLevel = max(min(zoomLevel, m_maximumZoomLevel), m_minimumZoomLevel);
m_client->zoomLevelChanged();
}
double WebView::zoomLevelToZoomFactor(double zoomLevel)
{
return pow(textSizeMultiplierRatio, zoomLevel);
}
double WebView::zoomFactorToZoomLevel(double factor)
{
// Since factor = 1.2^level, level = log(factor) / log(1.2)
return log(factor) / log(textSizeMultiplierRatio);
}
float WebViewImpl::pageScaleFactor() const
{
if (!page())
return 1;
return page()->pageScaleFactor();
}
bool WebViewImpl::isPageScaleFactorSet() const
{
return m_pageScaleFactorIsSet;
}
float WebViewImpl::clampPageScaleFactorToLimits(float scaleFactor)
{
return min(max(scaleFactor, m_minimumPageScaleFactor), m_maximumPageScaleFactor);
}
WebPoint WebViewImpl::clampOffsetAtScale(const WebPoint& offset, float scale)
{
// This is the scaled content size. We need to convert it to the new scale factor.
WebSize contentSize = mainFrame()->contentsSize();
float deltaScale = scale / pageScaleFactor();
int docWidthAtNewScale = contentSize.width * deltaScale;
int docHeightAtNewScale = contentSize.height * deltaScale;
int viewWidth = m_size.width;
int viewHeight = m_size.height;
// Enforce the maximum and minimum scroll positions at the new scale.
IntPoint clampedOffset = offset;
clampedOffset = clampedOffset.shrunkTo(IntPoint(docWidthAtNewScale - viewWidth, docHeightAtNewScale - viewHeight));
clampedOffset.clampNegativeToZero();
return clampedOffset;
}
void WebViewImpl::setPageScaleFactorPreservingScrollOffset(float scaleFactor)
{
// Pick a scale factor that is within the expected limits
scaleFactor = clampPageScaleFactorToLimits(scaleFactor);
IntPoint scrollOffsetAtNewScale(mainFrame()->scrollOffset().width, mainFrame()->scrollOffset().height);
float deltaScale = scaleFactor / pageScaleFactor();
scrollOffsetAtNewScale.scale(deltaScale, deltaScale);
WebPoint clampedOffsetAtNewScale = clampOffsetAtScale(scrollOffsetAtNewScale, scaleFactor);
setPageScaleFactor(scaleFactor, clampedOffsetAtNewScale);
}
void WebViewImpl::setPageScaleFactor(float scaleFactor, const WebPoint& origin)
{
if (!page())
return;
if (!scaleFactor)
scaleFactor = 1;
if (m_deviceScaleInCompositor != 1) {
// Don't allow page scaling when compositor scaling is being used,
// as they are currently incompatible.
ASSERT(scaleFactor == 1);
}
scaleFactor = clampPageScaleFactorToLimits(scaleFactor);
WebPoint scrollOffset;
if (!m_page->settings()->applyPageScaleFactorInCompositor()) {
// If page scale is not applied in the compositor, then the scroll offsets should
// be modified by the scale factor.
scrollOffset = clampOffsetAtScale(origin, scaleFactor);
} else {
IntPoint offset = origin;
WebSize contentSize = mainFrame()->contentsSize();
offset.shrunkTo(IntPoint(contentSize.width - m_size.width, contentSize.height - m_size.height));
offset.clampNegativeToZero();
scrollOffset = offset;
}
page()->setPageScaleFactor(scaleFactor, scrollOffset);
m_pageScaleFactorIsSet = true;
}
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 && m_webSettings->applyDefaultDeviceScaleFactorInCompositor()) {
m_deviceScaleInCompositor = page()->deviceScaleFactor();
m_layerTreeView->setDeviceScaleFactor(m_deviceScaleInCompositor);
}
if (m_deviceScaleInCompositor != 1) {
// Don't allow page scaling when compositor scaling is being used,
// as they are currently incompatible. This means the deviceScale
// needs to match the one in the compositor.
ASSERT(scaleFactor == m_deviceScaleInCompositor);
}
}
bool WebViewImpl::isFixedLayoutModeEnabled() const
{
if (!page())
return false;
Frame* frame = page()->mainFrame();
if (!frame || !frame->view())
return false;
return frame->view()->useFixedLayout();
}
void WebViewImpl::enableFixedLayoutMode(bool enable)
{
if (!page())
return;
Frame* frame = page()->mainFrame();
if (!frame || !frame->view())
return;
frame->view()->setUseFixedLayout(enable);
#if USE(ACCELERATED_COMPOSITING)
// Also notify the base layer, which RenderLayerCompositor does not see.
if (m_nonCompositedContentHost)
updateLayerTreeViewport();
#endif
}
void WebViewImpl::enableAutoResizeMode(const WebSize& minSize, const WebSize& maxSize)
{
m_shouldAutoResize = true;
m_minAutoSize = minSize;
m_maxAutoSize = maxSize;
configureAutoResizeMode();
}
void WebViewImpl::disableAutoResizeMode()
{
m_shouldAutoResize = false;
configureAutoResizeMode();
}
void WebViewImpl::setPageScaleFactorLimits(float minPageScale, float maxPageScale)
{
m_pageDefinedMinimumPageScaleFactor = minPageScale;
m_pageDefinedMaximumPageScaleFactor = maxPageScale;
computePageScaleFactorLimits();
}
void WebViewImpl::setIgnoreViewportTagMaximumScale(bool flag)
{
m_ignoreViewportTagMaximumScale = flag;
if (!page() || !page()->mainFrame())
return;
m_page->chrome()->client()->dispatchViewportPropertiesDidChange(page()->mainFrame()->document()->viewportArguments());
}
bool WebViewImpl::computePageScaleFactorLimits()
{
if (m_pageDefinedMinimumPageScaleFactor == -1 || m_pageDefinedMaximumPageScaleFactor == -1)
return false;
if (!mainFrame() || !page() || !page()->mainFrame() || !page()->mainFrame()->view())
return false;
m_minimumPageScaleFactor = min(max(m_pageDefinedMinimumPageScaleFactor, minPageScaleFactor), maxPageScaleFactor) * (deviceScaleFactor() / m_deviceScaleInCompositor);
m_maximumPageScaleFactor = max(min(m_pageDefinedMaximumPageScaleFactor, maxPageScaleFactor), minPageScaleFactor) * (deviceScaleFactor() / m_deviceScaleInCompositor);
int viewWidthNotIncludingScrollbars = page()->mainFrame()->view()->visibleContentRect(false).width();
int contentsWidth = mainFrame()->contentsSize().width;
if (viewWidthNotIncludingScrollbars && contentsWidth) {
// Limit page scaling down to the document width.
int unscaledContentWidth = contentsWidth / pageScaleFactor();
m_minimumPageScaleFactor = max(m_minimumPageScaleFactor, static_cast<float>(viewWidthNotIncludingScrollbars) / unscaledContentWidth);
m_maximumPageScaleFactor = max(m_minimumPageScaleFactor, m_maximumPageScaleFactor);
}
ASSERT(m_minimumPageScaleFactor <= m_maximumPageScaleFactor);
float clampedScale = clampPageScaleFactorToLimits(pageScaleFactor());
#if USE(ACCELERATED_COMPOSITING)
if (m_layerTreeView)
m_layerTreeView->setPageScaleFactorAndLimits(clampedScale, m_minimumPageScaleFactor, m_maximumPageScaleFactor);
#endif
if (clampedScale != pageScaleFactor()) {
setPageScaleFactorPreservingScrollOffset(clampedScale);
return true;
}
return false;
}
float WebViewImpl::minimumPageScaleFactor() const
{
return m_minimumPageScaleFactor;
}
float WebViewImpl::maximumPageScaleFactor() const
{
return m_maximumPageScaleFactor;
}
void WebViewImpl::saveScrollAndScaleState()
{
m_savedPageScaleFactor = pageScaleFactor();
m_savedScrollOffset = mainFrame()->scrollOffset();
}
void WebViewImpl::restoreScrollAndScaleState()
{
if (!m_savedPageScaleFactor)
return;
#if ENABLE(GESTURE_EVENTS)
startPageScaleAnimation(IntPoint(m_savedScrollOffset), false, m_savedPageScaleFactor, scrollAndScaleAnimationDurationInSeconds);
#else
setPageScaleFactor(m_savedPageScaleFactor, WebPoint());
mainFrame()->setScrollOffset(m_savedScrollOffset);
#endif
resetSavedScrollAndScaleState();
}
void WebViewImpl::resetSavedScrollAndScaleState()
{
m_savedPageScaleFactor = 0;
m_savedScrollOffset = IntSize();
}
void WebViewImpl::resetScrollAndScaleState()
{
page()->setPageScaleFactor(0, IntPoint());
m_pageScaleFactorIsSet = false;
// Clobber saved scales and scroll offsets.
if (FrameView* view = page()->mainFrame()->document()->view())
view->cacheCurrentScrollPosition();
resetSavedScrollAndScaleState();
page()->mainFrame()->loader()->history()->saveDocumentAndScrollState();
}
WebSize WebViewImpl::fixedLayoutSize() const
{
if (!page())
return WebSize();
Frame* frame = page()->mainFrame();
if (!frame || !frame->view())
return WebSize();
return frame->view()->fixedLayoutSize();
}
void WebViewImpl::setFixedLayoutSize(const WebSize& layoutSize)
{
if (!page())
return;
Frame* frame = page()->mainFrame();
if (!frame || !frame->view())
return;
frame->view()->setFixedLayoutSize(layoutSize);
}
void WebViewImpl::performMediaPlayerAction(const WebMediaPlayerAction& action,
const WebPoint& location)
{
HitTestResult result = hitTestResultForWindowPos(location);
RefPtr<Node> node = result.innerNonSharedNode();
if (!node->hasTagName(HTMLNames::videoTag) && !node->hasTagName(HTMLNames::audioTag))
return;
RefPtr<HTMLMediaElement> mediaElement =
static_pointer_cast<HTMLMediaElement>(node);
switch (action.type) {
case WebMediaPlayerAction::Play:
if (action.enable)
mediaElement->play();
else
mediaElement->pause();
break;
case WebMediaPlayerAction::Mute:
mediaElement->setMuted(action.enable);
break;
case WebMediaPlayerAction::Loop:
mediaElement->setLoop(action.enable);
break;
case WebMediaPlayerAction::Controls:
mediaElement->setControls(action.enable);
break;
default:
ASSERT_NOT_REACHED();
}
}
void WebViewImpl::performPluginAction(const WebPluginAction& action,
const WebPoint& location)
{
HitTestResult result = hitTestResultForWindowPos(location);
RefPtr<Node> node = result.innerNonSharedNode();
if (!node->hasTagName(HTMLNames::objectTag) && !node->hasTagName(HTMLNames::embedTag))
return;
RenderObject* object = node->renderer();
if (object && object->isWidget()) {
Widget* widget = toRenderWidget(object)->widget();
if (widget && widget->isPluginContainer()) {
WebPluginContainerImpl* plugin = static_cast<WebPluginContainerImpl*>(widget);
switch (action.type) {
case WebPluginAction::Rotate90Clockwise:
plugin->plugin()->rotateView(WebPlugin::RotationType90Clockwise);
break;
case WebPluginAction::Rotate90Counterclockwise:
plugin->plugin()->rotateView(WebPlugin::RotationType90Counterclockwise);
break;
default:
ASSERT_NOT_REACHED();
}
}
}
}
WebHitTestResult WebViewImpl::hitTestResultAt(const WebPoint& point)
{
return hitTestResultForWindowPos(point);
}
void WebViewImpl::copyImageAt(const WebPoint& point)
{
if (!m_page)
return;
HitTestResult result = hitTestResultForWindowPos(point);
if (result.absoluteImageURL().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::dragSourceEndedAt(
const WebPoint& clientPoint,
const WebPoint& screenPoint,
WebDragOperation operation)
{
PlatformMouseEvent pme(clientPoint,
screenPoint,
LeftButton, PlatformEvent::MouseMoved, 0, false, false, false,
false, 0);
m_page->mainFrame()->eventHandler()->dragSourceEndedAt(pme,
static_cast<DragOperation>(operation));
m_dragScrollTimer->stop();
}
void WebViewImpl::dragSourceMovedTo(
const WebPoint& clientPoint,
const WebPoint& screenPoint,
WebDragOperation operation)
{
m_dragScrollTimer->triggerScroll(mainFrameImpl()->frameView(), clientPoint);
}
void WebViewImpl::dragSourceSystemDragEnded()
{
// 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_page->dragController()->dragEnded();
m_doingDragAndDrop = false;
}
}
WebDragOperation WebViewImpl::dragTargetDragEnter(
const WebDragData& webDragData,
const WebPoint& clientPoint,
const WebPoint& screenPoint,
WebDragOperationsMask operationsAllowed,
int keyModifiers)
{
ASSERT(!m_currentDragData);
m_currentDragData = webDragData;
m_operationsAllowed = operationsAllowed;
return dragTargetDragEnterOrOver(clientPoint, screenPoint, DragEnter, keyModifiers);
}
WebDragOperation WebViewImpl::dragTargetDragOver(
const WebPoint& clientPoint,
const WebPoint& screenPoint,
WebDragOperationsMask operationsAllowed,
int keyModifiers)
{
m_operationsAllowed = operationsAllowed;
return dragTargetDragEnterOrOver(clientPoint, screenPoint, DragOver, keyModifiers);
}
void WebViewImpl::dragTargetDragLeave()
{
ASSERT(m_currentDragData);
DragData dragData(
m_currentDragData.get(),
IntPoint(),
IntPoint(),
static_cast<DragOperation>(m_operationsAllowed));
m_page->dragController()->dragExited(&dragData);
// FIXME: why is the drag scroll timer not stopped here?
m_dragOperation = WebDragOperationNone;
m_currentDragData = 0;
}
void WebViewImpl::dragTargetDrop(const WebPoint& clientPoint,
const WebPoint& screenPoint,
int keyModifiers)
{
ASSERT(m_currentDragData);
// If this webview transitions from the "drop accepting" state to the "not
// accepting" state, then our IPC message reply indicating that may be in-
// flight, or else delayed by javascript processing in this webview. If a
// drop happens before our IPC reply has reached the browser process, then
// the browser forwards the drop to this webview. So only allow a drop to
// proceed if our webview m_dragOperation state is not DragOperationNone.
if (m_dragOperation == WebDragOperationNone) { // IPC RACE CONDITION: do not allow this drop.
dragTargetDragLeave();
return;
}
m_currentDragData->setModifierKeyState(webInputEventKeyStateToPlatformEventKeyState(keyModifiers));
DragData dragData(
m_currentDragData.get(),
clientPoint,
screenPoint,
static_cast<DragOperation>(m_operationsAllowed));
m_page->dragController()->performDrag(&dragData);
m_dragOperation = WebDragOperationNone;
m_currentDragData = 0;
m_dragScrollTimer->stop();
}
WebDragOperation WebViewImpl::dragTargetDragEnterOrOver(const WebPoint& clientPoint, const WebPoint& screenPoint, DragAction dragAction, int keyModifiers)
{
ASSERT(m_currentDragData);
m_currentDragData->setModifierKeyState(webInputEventKeyStateToPlatformEventKeyState(keyModifiers));
DragData dragData(
m_currentDragData.get(),
clientPoint,
screenPoint,
static_cast<DragOperation>(m_operationsAllowed));
DragSession dragSession;
if (dragAction == DragEnter)
dragSession = m_page->dragController()->dragEntered(&dragData);
else
dragSession = m_page->dragController()->dragUpdated(&dragData);
DragOperation dropEffect = dragSession.operation;
// Mask the drop effect operation against the drag source's allowed operations.
if (!(dropEffect & dragData.draggingSourceOperationMask()))
dropEffect = DragOperationNone;
m_dragOperation = static_cast<WebDragOperation>(dropEffect);
if (dragAction == DragOver)
m_dragScrollTimer->triggerScroll(mainFrameImpl()->frameView(), clientPoint);
else
m_dragScrollTimer->stop();
return m_dragOperation;
}
void WebViewImpl::sendResizeEventAndRepaint()
{
if (mainFrameImpl()->frameView()) {
// Enqueues the resize event.
mainFrameImpl()->frame()->eventHandler()->sendResizeEvent();
}
if (m_client) {
if (isAcceleratedCompositingActive()) {
#if USE(ACCELERATED_COMPOSITING)
updateLayerTreeViewport();
#endif
} else {
WebRect damagedRect(0, 0, m_size.width, m_size.height);
m_client->didInvalidateRect(damagedRect);
}
}
if (m_pageOverlays)
m_pageOverlays->update();
}
void WebViewImpl::configureAutoResizeMode()
{
if (!mainFrameImpl() || !mainFrameImpl()->frame() || !mainFrameImpl()->frame()->view())
return;
mainFrameImpl()->frame()->view()->enableAutoSizeMode(m_shouldAutoResize, m_minAutoSize, m_maxAutoSize);
}
unsigned long WebViewImpl::createUniqueIdentifierForRequest()
{
if (m_page)
return m_page->progress()->createUniqueIdentifier();
return 0;
}
void WebViewImpl::inspectElementAt(const WebPoint& point)
{
if (!m_page)
return;
if (point.x == -1 || point.y == -1)
m_page->inspectorController()->inspect(0);
else {
HitTestResult result = hitTestResultForWindowPos(point);
if (!result.innerNonSharedNode())
return;
m_page->inspectorController()->inspect(result.innerNonSharedNode());
}
}
WebString WebViewImpl::inspectorSettings() const
{
return m_inspectorSettings;
}
void WebViewImpl::setInspectorSettings(const WebString& settings)
{
m_inspectorSettings = settings;
}
bool WebViewImpl::inspectorSetting(const WebString& key, WebString* value) const
{
if (!m_inspectorSettingsMap->contains(key))
return false;
*value = m_inspectorSettingsMap->get(key);
return true;
}
void WebViewImpl::setInspectorSetting(const WebString& key,
const WebString& value)
{
m_inspectorSettingsMap->set(key, value);
client()->didUpdateInspectorSetting(key, value);
}
WebDevToolsAgent* WebViewImpl::devToolsAgent()
{
return m_devToolsAgent.get();
}
WebAccessibilityObject WebViewImpl::accessibilityObject()
{
if (!mainFrameImpl())
return WebAccessibilityObject();
Document* document = mainFrameImpl()->frame()->document();
return WebAccessibilityObject(
document->axObjectCache()->getOrCreate(document->renderer()));
}
void WebViewImpl::applyAutofillSuggestions(
const WebNode& node,
const WebVector<WebString>& names,
const WebVector<WebString>& labels,
const WebVector<WebString>& icons,
const WebVector<int>& itemIDs,
int separatorIndex)
{
ASSERT(names.size() == labels.size());
ASSERT(names.size() == itemIDs.size());
if (names.isEmpty()) {
hideAutofillPopup();
return;
}
RefPtr<Node> focusedNode = focusedWebCoreNode();
// If the node for which we queried the Autofill suggestions is not the
// focused node, then we have nothing to do. FIXME: also check the
// caret is at the end and that the text has not changed.
if (!focusedNode || focusedNode != PassRefPtr<Node>(node)) {
hideAutofillPopup();
return;
}
HTMLInputElement* inputElem = focusedNode->toInputElement();
ASSERT(inputElem);
// The first time the Autofill popup is shown we'll create the client and
// the popup.
if (!m_autofillPopupClient)
m_autofillPopupClient = adoptPtr(new AutofillPopupMenuClient);
m_autofillPopupClient->initialize(
inputElem, names, labels, icons, itemIDs, separatorIndex);
if (!m_autofillPopup) {
PopupContainerSettings popupSettings = autofillPopupSettings;
popupSettings.deviceSupportsTouch = settingsImpl()->deviceSupportsTouch();
m_autofillPopup = PopupContainer::create(m_autofillPopupClient.get(),
PopupContainer::Suggestion,
popupSettings);
}
if (m_autofillPopupShowing) {
refreshAutofillPopup();
} else {
m_autofillPopupShowing = true;
m_autofillPopup->showInRect(focusedNode->pixelSnappedBoundingBox(), focusedNode->ownerDocument()->view(), 0);
}
}
void WebViewImpl::hidePopups()
{
hideSelectPopup();
hideAutofillPopup();
#if ENABLE(PAGE_POPUP)
if (m_pagePopup)
closePagePopup(m_pagePopup.get());
#endif
}
void WebViewImpl::performCustomContextMenuAction(unsigned action)
{
if (!m_page)
return;
ContextMenu* menu = m_page->contextMenuController()->contextMenu();
if (!menu)
return;
ContextMenuItem* item = menu->itemWithAction(static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + action));
if (item)
m_page->contextMenuController()->contextMenuItemSelected(item);
m_page->contextMenuController()->clearContextMenu();
}
// WebView --------------------------------------------------------------------
void WebViewImpl::setIsTransparent(bool isTransparent)
{
// Set any existing frames to be transparent.
Frame* frame = m_page->mainFrame();
while (frame) {
frame->view()->setTransparent(isTransparent);
frame = frame->tree()->traverseNext();
}
// Future frames check this to know whether to be transparent.
m_isTransparent = isTransparent;
if (m_nonCompositedContentHost)
m_nonCompositedContentHost->setOpaque(!isTransparent);
if (m_layerTreeView)
m_layerTreeView->setHasTransparentBackground(isTransparent);
}
bool WebViewImpl::isTransparent() const
{
return m_isTransparent;
}
void WebViewImpl::setIsActive(bool active)
{
if (page() && page()->focusController())
page()->focusController()->setActive(active);
}
bool WebViewImpl::isActive() const
{
return (page() && page()->focusController()) ? page()->focusController()->isActive() : false;
}
void WebViewImpl::setDomainRelaxationForbidden(bool forbidden, const WebString& scheme)
{
SchemeRegistry::setDomainRelaxationForbiddenForURLScheme(forbidden, String(scheme));
}
void WebViewImpl::setScrollbarColors(unsigned inactiveColor,
unsigned activeColor,
unsigned trackColor) {
#if OS(UNIX) && !OS(DARWIN) && !OS(ANDROID)
PlatformThemeChromiumLinux::setScrollbarColors(inactiveColor, activeColor, trackColor);
#endif
}
void WebViewImpl::setSelectionColors(unsigned activeBackgroundColor,
unsigned activeForegroundColor,
unsigned inactiveBackgroundColor,
unsigned inactiveForegroundColor) {
#if OS(UNIX) && !OS(DARWIN) && !OS(ANDROID)
RenderThemeChromiumLinux::setSelectionColors(activeBackgroundColor,
activeForegroundColor,
inactiveBackgroundColor,
inactiveForegroundColor);
theme()->platformColorsDidChange();
#endif
}
void WebView::addUserScript(const WebString& sourceCode,
const WebVector<WebString>& patternsIn,
WebView::UserScriptInjectAt injectAt,
WebView::UserContentInjectIn injectIn)
{
Vector<String> patterns;
for (size_t i = 0; i < patternsIn.size(); ++i)
patterns.append(patternsIn[i]);
PageGroup* pageGroup = PageGroup::pageGroup(pageGroupName);
RefPtr<DOMWrapperWorld> world(DOMWrapperWorld::createUninitializedWorld());
pageGroup->addUserScriptToWorld(world.get(), sourceCode, WebURL(), patterns, Vector<String>(),
static_cast<UserScriptInjectionTime>(injectAt),
static_cast<UserContentInjectedFrames>(injectIn));
}
void WebView::addUserStyleSheet(const WebString& sourceCode,
const WebVector<WebString>& patternsIn,
WebView::UserContentInjectIn injectIn,
WebView::UserStyleInjectionTime injectionTime)
{
Vector<String> patterns;
for (size_t i = 0; i < patternsIn.size(); ++i)
patterns.append(patternsIn[i]);
PageGroup* pageGroup = PageGroup::pageGroup(pageGroupName);
RefPtr<DOMWrapperWorld> world(DOMWrapperWorld::createUninitializedWorld());
// FIXME: Current callers always want the level to be "author". It probably makes sense to let
// callers specify this though, since in other cases the caller will probably want "user" level.
//
// FIXME: It would be nice to populate the URL correctly, instead of passing an empty URL.
pageGroup->addUserStyleSheetToWorld(world.get(), sourceCode, WebURL(), patterns, Vector<String>(),
static_cast<UserContentInjectedFrames>(injectIn),
UserStyleAuthorLevel,
static_cast<WebCore::UserStyleInjectionTime>(injectionTime));
}
void WebView::removeAllUserContent()
{
PageGroup* pageGroup = PageGroup::pageGroup(pageGroupName);
pageGroup->removeAllUserContent();
}
void WebViewImpl::didCommitLoad(bool* isNewNavigation, bool isNavigationWithinPage)
{
if (isNewNavigation)
*isNewNavigation = m_observedNewNavigation;
#ifndef NDEBUG
ASSERT(!m_observedNewNavigation
|| m_page->mainFrame()->loader()->documentLoader() == m_newNavigationLoader);
m_newNavigationLoader = 0;
#endif
m_observedNewNavigation = false;
if (*isNewNavigation && !isNavigationWithinPage) {
m_pageScaleFactorIsSet = false;
m_doubleTapZoomInEffect = false;
}
// Make sure link highlight from previous page is cleared.
m_linkHighlight.clear();
m_gestureAnimation.clear();
resetSavedScrollAndScaleState();
}
void WebViewImpl::layoutUpdated(WebFrameImpl* webframe)
{
if (!m_client || webframe != mainFrameImpl())
return;
if (m_shouldAutoResize && mainFrameImpl()->frame() && mainFrameImpl()->frame()->view()) {
WebSize frameSize = mainFrameImpl()->frame()->view()->frameRect().size();
if (frameSize != m_size) {
m_size = frameSize;
m_client->didAutoResize(m_size);
sendResizeEventAndRepaint();
}
}
m_client->didUpdateLayout();
}
void WebViewImpl::didChangeContentsSize()
{
#if ENABLE(VIEWPORT)
if (!settings()->viewportEnabled())
return;
bool didChangeScale = false;
if (!isPageScaleFactorSet()) {
// If the viewport tag failed to be processed earlier, we need
// to recompute it now.
ViewportArguments viewportArguments = mainFrameImpl()->frame()->document()->viewportArguments();
m_page->chrome()->client()->dispatchViewportPropertiesDidChange(viewportArguments);
didChangeScale = true;
} else
didChangeScale = computePageScaleFactorLimits();
if (!didChangeScale)
return;
if (!mainFrameImpl())
return;
FrameView* view = mainFrameImpl()->frameView();
if (view && view->needsLayout())
view->layout();
#endif
}
bool WebViewImpl::useExternalPopupMenus()
{
return shouldUseExternalPopupMenus;
}
void WebViewImpl::setEmulatedTextZoomFactor(float textZoomFactor)
{
m_emulatedTextZoomFactor = textZoomFactor;
Frame* frame = mainFrameImpl()->frame();
if (frame)
frame->setPageAndTextZoomFactors(frame->pageZoomFactor(), m_emulatedTextZoomFactor);
}
bool WebViewImpl::navigationPolicyFromMouseEvent(unsigned short button,
bool ctrl, bool shift,
bool alt, bool meta,
WebNavigationPolicy* policy)
{
#if OS(DARWIN)
const bool newTabModifier = (button == 1) || meta;
#else
const bool newTabModifier = (button == 1) || ctrl;
#endif
if (!newTabModifier && !shift && !alt)
return false;
ASSERT(policy);
if (newTabModifier) {
if (shift)
*policy = WebNavigationPolicyNewForegroundTab;
else
*policy = WebNavigationPolicyNewBackgroundTab;
} else {
if (shift)
*policy = WebNavigationPolicyNewWindow;
else
*policy = WebNavigationPolicyDownload;
}
return true;
}
void WebViewImpl::startDragging(Frame* frame,
const WebDragData& dragData,
WebDragOperationsMask mask,
const WebImage& dragImage,
const WebPoint& dragImageOffset)
{
if (!m_client)
return;
ASSERT(!m_doingDragAndDrop);
m_doingDragAndDrop = true;
m_client->startDragging(WebFrameImpl::fromFrame(frame), dragData, mask, dragImage, dragImageOffset);
}
void WebViewImpl::observeNewNavigation()
{
m_observedNewNavigation = true;
#ifndef NDEBUG
m_newNavigationLoader = m_page->mainFrame()->loader()->documentLoader();
#endif
}
void WebViewImpl::setIgnoreInputEvents(bool newValue)
{
ASSERT(m_ignoreInputEvents != newValue);
m_ignoreInputEvents = newValue;
}
void WebViewImpl::addPageOverlay(WebPageOverlay* overlay, int zOrder)
{
if (!m_pageOverlays)
m_pageOverlays = PageOverlayList::create(this);
m_pageOverlays->add(overlay, zOrder);
}
void WebViewImpl::removePageOverlay(WebPageOverlay* overlay)
{
if (m_pageOverlays && m_pageOverlays->remove(overlay) && m_pageOverlays->empty())
m_pageOverlays = nullptr;
}
void WebViewImpl::setOverlayLayer(WebCore::GraphicsLayer* layer)
{
if (m_rootGraphicsLayer) {
if (layer->parent() != m_rootGraphicsLayer)
m_rootGraphicsLayer->addChild(layer);
}
}
#if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
NotificationPresenterImpl* WebViewImpl::notificationPresenterImpl()
{
if (!m_notificationPresenter.isInitialized() && m_client)
m_notificationPresenter.initialize(m_client->notificationPresenter());
return &m_notificationPresenter;
}
#endif
void WebViewImpl::refreshAutofillPopup()
{
ASSERT(m_autofillPopupShowing);
// Hide the popup if it has become empty.
if (!m_autofillPopupClient->listSize()) {
hideAutofillPopup();
return;
}
WebRect newWidgetRect = m_autofillPopup->refresh(focusedWebCoreNode()->pixelSnappedBoundingBox());
// Let's resize the backing window if necessary.
WebPopupMenuImpl* popupMenu = static_cast<WebPopupMenuImpl*>(m_autofillPopup->client());
if (popupMenu && popupMenu->client()->windowRect() != newWidgetRect)
popupMenu->client()->setWindowRect(newWidgetRect);
}
Node* WebViewImpl::focusedWebCoreNode()
{
Frame* frame = m_page->focusController()->focusedFrame();
if (!frame)
return 0;
Document* document = frame->document();
if (!document)
return 0;
return document->focusedNode();
}
HitTestResult WebViewImpl::hitTestResultForWindowPos(const IntPoint& pos)
{
IntPoint docPoint(m_page->mainFrame()->view()->windowToContents(pos));
return m_page->mainFrame()->eventHandler()->hitTestResultAtPoint(docPoint, false);
}
void WebViewImpl::setTabsToLinks(bool enable)
{
m_tabsToLinks = enable;
}
bool WebViewImpl::tabsToLinks() const
{
return m_tabsToLinks;
}
void WebViewImpl::suppressInvalidations(bool enable)
{
m_suppressInvalidations = enable;
}
#if USE(ACCELERATED_COMPOSITING)
bool WebViewImpl::allowsAcceleratedCompositing()
{
return !m_compositorCreationFailed;
}
void WebViewImpl::setRootGraphicsLayer(GraphicsLayer* layer)
{
TemporaryChange<bool> change(m_suppressInvalidations, true);
m_rootGraphicsLayer = layer;
m_rootLayer = layer ? layer->platformLayer() : 0;
setIsAcceleratedCompositingActive(layer);
if (m_nonCompositedContentHost) {
GraphicsLayer* scrollLayer = 0;
if (layer) {
Document* document = page()->mainFrame()->document();
RenderView* renderView = document->renderView();
RenderLayerCompositor* compositor = renderView->compositor();
scrollLayer = compositor->scrollLayer();
}
m_nonCompositedContentHost->setScrollLayer(scrollLayer);
}
if (m_layerTreeView) {
if (m_rootLayer)
m_layerTreeView->setRootLayer(*m_rootLayer);
else
m_layerTreeView->clearRootLayer();
}
IntRect damagedRect(0, 0, m_size.width, m_size.height);
if (!m_isAcceleratedCompositingActive && !m_suppressInvalidations)
m_client->didInvalidateRect(damagedRect);
}
void WebViewImpl::scheduleCompositingLayerSync()
{
m_layerTreeView->setNeedsRedraw();
}
void WebViewImpl::scrollRootLayerRect(const IntSize&, const IntRect&)
{
updateLayerTreeViewport();
}
void WebViewImpl::invalidateRect(const IntRect& rect)
{
if (m_layerTreeViewCommitsDeferred) {
// If we receive an invalidation from WebKit while in deferred commit mode,
// that means it's time to start producing frames again so un-defer.
m_layerTreeView->setDeferCommits(false);
m_layerTreeViewCommitsDeferred = false;
}
if (m_isAcceleratedCompositingActive) {
ASSERT(m_layerTreeView);
if (!page())
return;
FrameView* view = page()->mainFrame()->view();
IntRect dirtyRect = view->windowToContents(rect);
updateLayerTreeViewport();
m_nonCompositedContentHost->invalidateRect(dirtyRect);
} else if (m_client)
m_client->didInvalidateRect(rect);
}
NonCompositedContentHost* WebViewImpl::nonCompositedContentHost()
{
return m_nonCompositedContentHost.get();
}
void WebViewImpl::setBackgroundColor(const WebCore::Color& color)
{
WebCore::Color documentBackgroundColor = color.isValid() ? color : WebCore::Color::white;
WebColor webDocumentBackgroundColor = documentBackgroundColor.rgb();
m_nonCompositedContentHost->setBackgroundColor(documentBackgroundColor);
m_layerTreeView->setBackgroundColor(webDocumentBackgroundColor);
}
WebCore::GraphicsLayer* WebViewImpl::rootGraphicsLayer()
{
return m_rootGraphicsLayer;
}
#if ENABLE(REQUEST_ANIMATION_FRAME)
void WebViewImpl::scheduleAnimation()
{
if (isAcceleratedCompositingActive()) {
if (Platform::current()->compositorSupport()->isThreadingEnabled()) {
ASSERT(m_layerTreeView);
m_layerTreeView->setNeedsAnimate();
} else
m_client->scheduleAnimation();
} else
m_client->scheduleAnimation();
}
#endif
void WebViewImpl::paintRootLayer(GraphicsContext& context, const IntRect& contentRect)
{
double paintStart = currentTime();
if (!page())
return;
FrameView* view = page()->mainFrame()->view();
if (context.platformContext())
context.platformContext()->setDeviceScaleFactor(page()->deviceScaleFactor());
view->paintContents(&context, contentRect);
double paintEnd = currentTime();
double pixelsPerSec = (contentRect.width() * contentRect.height()) / (paintEnd - paintStart);
WebKit::Platform::current()->histogramCustomCounts("Renderer4.AccelRootPaintDurationMS", (paintEnd - paintStart) * 1000, 0, 120, 30);
WebKit::Platform::current()->histogramCustomCounts("Renderer4.AccelRootPaintMegapixPerSecond", pixelsPerSec / 1000000, 10, 210, 30);
setBackgroundColor(view->documentBackgroundColor());
}
void WebViewImpl::setIsAcceleratedCompositingActive(bool active)
{
WebKit::Platform::current()->histogramEnumeration("GPU.setIsAcceleratedCompositingActive", active * 2 + m_isAcceleratedCompositingActive, 4);
if (m_isAcceleratedCompositingActive == active)
return;
if (!active) {
m_isAcceleratedCompositingActive = false;
// We need to finish all GL rendering before sending didDeactivateCompositor() to prevent
// flickering when compositing turns off. This is only necessary if we're not in
// force-compositing-mode.
if (m_layerTreeView && !page()->settings()->forceCompositingMode())
m_layerTreeView->finishAllRendering();
m_client->didDeactivateCompositor();
if (!m_layerTreeViewCommitsDeferred
&& WebKit::Platform::current()->compositorSupport()->isThreadingEnabled()) {
ASSERT(m_layerTreeView);
// In threaded compositing mode, force compositing mode is always on so setIsAcceleratedCompositingActive(false)
// 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 if (m_layerTreeView) {
m_isAcceleratedCompositingActive = true;
updateLayerTreeViewport();
m_client->didActivateCompositor(m_inputHandlerIdentifier);
} else {
TRACE_EVENT0("webkit", "WebViewImpl::setIsAcceleratedCompositingActive(true)");
WebLayerTreeView::Settings layerTreeViewSettings;
layerTreeViewSettings.acceleratePainting = page()->settings()->acceleratedDrawingEnabled();
layerTreeViewSettings.showFPSCounter = settingsImpl()->showFPSCounter();
layerTreeViewSettings.showPlatformLayerTree = settingsImpl()->showPlatformLayerTree();
layerTreeViewSettings.showPaintRects = settingsImpl()->showPaintRects();
layerTreeViewSettings.renderVSyncEnabled = settingsImpl()->renderVSyncEnabled();
layerTreeViewSettings.defaultTileSize = settingsImpl()->defaultTileSize();
layerTreeViewSettings.maxUntiledLayerSize = settingsImpl()->maxUntiledLayerSize();
m_nonCompositedContentHost = NonCompositedContentHost::create(this);
m_nonCompositedContentHost->setShowDebugBorders(page()->settings()->showDebugBorders());
m_nonCompositedContentHost->setOpaque(!isTransparent());
m_layerTreeView = adoptPtr(Platform::current()->compositorSupport()->createLayerTreeView(this, *m_rootLayer, layerTreeViewSettings));
if (m_layerTreeView) {
if (m_webSettings->applyDefaultDeviceScaleFactorInCompositor() && page()->deviceScaleFactor() != 1) {
ASSERT(page()->deviceScaleFactor());
m_deviceScaleInCompositor = page()->deviceScaleFactor();
setDeviceScaleFactor(m_deviceScaleInCompositor);
}
bool visible = page()->visibilityState() == PageVisibilityStateVisible;
m_layerTreeView->setVisible(visible);
m_layerTreeView->setPageScaleFactorAndLimits(pageScaleFactor(), m_minimumPageScaleFactor, m_maximumPageScaleFactor);
if (m_compositorSurfaceReady)
m_layerTreeView->setSurfaceReady();
m_layerTreeView->setHasTransparentBackground(isTransparent());
updateLayerTreeViewport();
m_client->didActivateCompositor(m_inputHandlerIdentifier);
m_isAcceleratedCompositingActive = true;
m_compositorCreationFailed = false;
if (m_pageOverlays)
m_pageOverlays->update();
// Only allocate the font atlas if we have reason to use the heads-up display.
if (layerTreeViewSettings.showFPSCounter || layerTreeViewSettings.showPlatformLayerTree) {
TRACE_EVENT0("cc", "WebViewImpl::setIsAcceleratedCompositingActive(true) initialize font atlas");
WebRect asciiToRectTable[128];
int fontHeight;
SkBitmap bitmap = WebCore::CompositorHUDFontAtlas::generateFontAtlas(asciiToRectTable, fontHeight);
m_layerTreeView->setFontAtlas(asciiToRectTable, bitmap, fontHeight);
}
} else {
m_nonCompositedContentHost.clear();
m_isAcceleratedCompositingActive = false;
m_client->didDeactivateCompositor();
m_compositorCreationFailed = true;
}
}
if (page())
page()->mainFrame()->view()->setClipsRepaints(!m_isAcceleratedCompositingActive);
}
#endif
namespace {
// Adapts a pure WebGraphicsContext3D into a WebCompositorOutputSurface until
// downstream code can be updated to produce output surfaces directly.
class WebGraphicsContextToOutputSurfaceAdapter : public WebCompositorOutputSurface {
public:
explicit WebGraphicsContextToOutputSurfaceAdapter(PassOwnPtr<WebGraphicsContext3D> context)
: m_context3D(context)
, m_client(0)
{
}
virtual bool bindToClient(WebCompositorOutputSurfaceClient* client) OVERRIDE
{
ASSERT(client);
if (!m_context3D->makeContextCurrent())
return false;
m_client = client;
return true;
}
virtual const Capabilities& capabilities() const OVERRIDE
{
return m_capabilities;
}
virtual WebGraphicsContext3D* context3D() const OVERRIDE
{
return m_context3D.get();
}
virtual void sendFrameToParentCompositor(const WebCompositorFrame&) OVERRIDE
{
}
private:
OwnPtr<WebGraphicsContext3D> m_context3D;
Capabilities m_capabilities;
WebCompositorOutputSurfaceClient* m_client;
};
} // namespace
WebGraphicsContext3D* WebViewImpl::createContext3D()
{
// Temporarily, if the output surface can't be created, create a WebGraphicsContext3D
// directly. This allows bootstrapping the output surface system while downstream
// users of the API still use the old approach.
WebKit::WebGraphicsContext3D::Attributes attributes;
attributes.antialias = false;
attributes.shareResources = true;
return m_client->createGraphicsContext3D(attributes);
}
WebCompositorOutputSurface* WebViewImpl::createOutputSurface()
{
return m_client->createOutputSurface();
}
WebInputHandler* WebViewImpl::createInputHandler()
{
WebCompositorInputHandlerImpl* handler = new WebCompositorInputHandlerImpl();
m_inputHandlerIdentifier = handler->identifier();
return handler;
}
void WebViewImpl::applyScrollAndScale(const WebSize& scrollDelta, float pageScaleDelta)
{
if (!mainFrameImpl() || !mainFrameImpl()->frameView())
return;
if (pageScaleDelta == 1) {
TRACE_EVENT_INSTANT2("webkit", "WebViewImpl::applyScrollAndScale::scrollBy", "x", scrollDelta.width, "y", scrollDelta.height);
mainFrameImpl()->frameView()->scrollBy(scrollDelta);
} else {
// The page scale changed, so apply a scale and scroll in a single
// operation.
WebSize scrollOffset = mainFrame()->scrollOffset();
scrollOffset.width += scrollDelta.width;
scrollOffset.height += scrollDelta.height;
WebPoint scrollPoint(scrollOffset.width, scrollOffset.height);
if (!m_page->settings()->applyPageScaleFactorInCompositor()) {
// The old scroll offset (and passed-in delta) are in the old
// coordinate space, so we first need to multiply them by the page
// scale delta.
scrollPoint.x = scrollPoint.x * pageScaleDelta;
scrollPoint.y = scrollPoint.y * pageScaleDelta;
}
setPageScaleFactor(pageScaleFactor() * pageScaleDelta, scrollPoint);
m_doubleTapZoomInEffect = false;
}
}
void WebViewImpl::willCommit()
{
InspectorInstrumentation::willComposite(m_page.get());
}
void WebViewImpl::didCommit()
{
if (m_client)
m_client->didBecomeReadyForAdditionalInput();
}
void WebViewImpl::didCommitAndDrawFrame()
{
if (m_client)
m_client->didCommitAndDrawCompositorFrame();
}
void WebViewImpl::didCompleteSwapBuffers()
{
if (m_client)
m_client->didCompleteSwapBuffers();
}
void WebViewImpl::didRebindGraphicsContext(bool success)
{
didRecreateOutputSurface(success);
}
void WebViewImpl::didRecreateOutputSurface(bool success)
{
// Switch back to software rendering mode, if necessary
if (!success) {
ASSERT(m_isAcceleratedCompositingActive);
setIsAcceleratedCompositingActive(false);
m_compositorCreationFailed = true;
m_client->didInvalidateRect(IntRect(0, 0, m_size.width, m_size.height));
// Force a style recalc to remove all the composited layers.
m_page->mainFrame()->document()->scheduleForcedStyleRecalc();
return;
}
if (m_pageOverlays)
m_pageOverlays->update();
}
void WebViewImpl::scheduleComposite()
{
if (m_suppressInvalidations) {
TRACE_EVENT_INSTANT0("webkit", "WebViewImpl invalidations suppressed");
return;
}
ASSERT(!Platform::current()->compositorSupport()->isThreadingEnabled());
m_client->scheduleComposite();
}
void WebViewImpl::updateLayerTreeViewport()
{
if (!page() || !m_nonCompositedContentHost || !m_layerTreeView)
return;
FrameView* view = page()->mainFrame()->view();
IntRect visibleRect = view->visibleContentRect(true /* include scrollbars */);
IntPoint scroll(view->scrollX(), view->scrollY());
m_nonCompositedContentHost->setViewport(visibleRect.size(), view->contentsSize(), scroll, view->scrollOrigin());
IntSize layoutViewportSize = size();
IntSize deviceViewportSize = size();
// This part of the deviceScale will be used to scale the contents of
// the NCCH's GraphicsLayer.
deviceViewportSize.scale(m_deviceScaleInCompositor);
m_layerTreeView->setViewportSize(layoutViewportSize, deviceViewportSize);
m_layerTreeView->setPageScaleFactorAndLimits(pageScaleFactor(), m_minimumPageScaleFactor, m_maximumPageScaleFactor);
}
WebGraphicsContext3D* WebViewImpl::sharedGraphicsContext3D()
{
if (!m_page->settings()->acceleratedCompositingEnabled() || !allowsAcceleratedCompositing())
return 0;
return GraphicsContext3DPrivate::extractWebGraphicsContext3D(SharedGraphicsContext3D::get().get());
}
void WebViewImpl::selectAutofillSuggestionAtIndex(unsigned listIndex)
{
if (m_autofillPopupClient && listIndex < m_autofillPopupClient->getSuggestionsCount())
m_autofillPopupClient->valueChanged(listIndex);
}
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, unless the click event is on the
// body element, in which case it's unlikely that the original node itself was intended to be clickable.
for (; node && !node->hasTagName(HTMLNames::bodyTag); node = node->parentNode()) {
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;
#if ENABLE(PAGE_VISIBILITY_API)
ASSERT(visibilityState == WebPageVisibilityStateVisible
|| visibilityState == WebPageVisibilityStateHidden
|| visibilityState == WebPageVisibilityStatePrerender
|| visibilityState == WebPageVisibilityStatePreview);
m_page->setVisibilityState(static_cast<PageVisibilityState>(static_cast<int>(visibilityState)), isInitialState);
#endif
#if USE(ACCELERATED_COMPOSITING)
if (m_layerTreeView) {
bool visible = visibilityState == WebPageVisibilityStateVisible;
m_layerTreeView->setVisible(visible);
}
#endif
}
#if ENABLE(POINTER_LOCK)
bool WebViewImpl::requestPointerLock()
{
return m_client && m_client->requestPointerLock();
}
void WebViewImpl::requestPointerUnlock()
{
if (m_client)
m_client->requestPointerUnlock();
}
bool WebViewImpl::isPointerLocked()
{
return m_client && m_client->isPointerLocked();
}
void WebViewImpl::pointerLockMouseEvent(const WebInputEvent& event)
{
AtomicString eventType;
switch (event.type) {
case WebInputEvent::MouseDown:
eventType = eventNames().mousedownEvent;
break;
case WebInputEvent::MouseUp:
eventType = eventNames().mouseupEvent;
break;
case WebInputEvent::MouseMove:
eventType = eventNames().mousemoveEvent;
break;
default:
ASSERT_NOT_REACHED();
}
const WebMouseEvent& mouseEvent = static_cast<const WebMouseEvent&>(event);
if (page())
page()->pointerLockController()->dispatchLockedMouseEvent(
PlatformMouseEventBuilder(mainFrameImpl()->frameView(), mouseEvent),
eventType);
}
#endif
} // namespace WebKit