Source/WebKit2/WebProcess/WebPage/WebPage.cpp

   1 /*
   2  * Copyright (C) 2010, 2011, 2012, 2013-2015 Apple Inc. All rights reserved.
   3  * Copyright (C) 2012 Intel Corporation. All rights reserved.
   4  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  17  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  19  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  25  * THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include "config.h"
  29 #include "WebPage.h"
  30
  31 #include "APIArray.h"
  32 #include "APIGeometry.h"
  33 #include "Arguments.h"
  34 #include "DataReference.h"
  35 #include "DragControllerAction.h"
  36 #include "DrawingArea.h"
  37 #include "DrawingAreaMessages.h"
  38 #include "EditorState.h"
  39 #include "EventDispatcher.h"
  40 #include "InjectedBundle.h"
  41 #include "InjectedBundleBackForwardList.h"
  42 #include "InjectedBundleScriptWorld.h"
  43 #include "Logging.h"
  44 #include "NetscapePlugin.h"
  45 #include "NotificationPermissionRequestManager.h"
  46 #include "PageBanner.h"
  47 #include "PluginProcessAttributes.h"
  48 #include "PluginProxy.h"
  49 #include "PluginView.h"
  50 #include "PrintInfo.h"
  51 #include "SessionState.h"
  52 #include "SessionStateConversion.h"
  53 #include "SessionTracker.h"
  54 #include "ShareableBitmap.h"
  55 #include "VisitedLinkTableController.h"
  56 #include "WKBundleAPICast.h"
  57 #include "WKRetainPtr.h"
  58 #include "WKSharedAPICast.h"
  59 #include "WebAlternativeTextClient.h"
  60 #include "WebBackForwardListItem.h"
  61 #include "WebBackForwardListProxy.h"
  62 #include "WebChromeClient.h"
  63 #include "WebColorChooser.h"
  64 #include "WebContextMenu.h"
  65 #include "WebContextMenuClient.h"
  66 #include "WebCoreArgumentCoders.h"
  67 #include "WebDatabaseProvider.h"
  68 #include "WebDiagnosticLoggingClient.h"
  69 #include "WebDocumentLoader.h"
  70 #include "WebDragClient.h"
  71 #include "WebEditorClient.h"
  72 #include "WebEvent.h"
  73 #include "WebEventConversion.h"
  74 #include "WebEventFactory.h"
  75 #include "WebFrame.h"
  76 #include "WebFrameLoaderClient.h"
  77 #include "WebFullScreenManager.h"
  78 #include "WebFullScreenManagerMessages.h"
  79 #include "WebGeolocationClient.h"
  80 #include "WebImage.h"
  81 #include "WebInspector.h"
  82 #include "WebInspectorClient.h"
  83 #include "WebInspectorMessages.h"
  84 #include "WebInspectorUI.h"
  85 #include "WebInspectorUIMessages.h"
  86 #include "WebMediaKeyStorageManager.h"
  87 #include "WebNotificationClient.h"
  88 #include "WebOpenPanelResultListener.h"
  89 #include "WebPageCreationParameters.h"
  90 #include "WebPageGroupProxy.h"
  91 #include "WebPageMessages.h"
  92 #include "WebPageOverlay.h"
  93 #include "WebPageProxyMessages.h"
  94 #include "WebPlugInClient.h"
  95 #include "WebPopupMenu.h"
  96 #include "WebPreferencesDefinitions.h"
  97 #include "WebPreferencesKeys.h"
  98 #include "WebPreferencesStore.h"
  99 #include "WebProcess.h"
 100 #include "WebProcessPoolMessages.h"
 101 #include "WebProcessProxyMessages.h"
 102 #include "WebProgressTrackerClient.h"
 103 #include "WebStorageNamespaceProvider.h"
 104 #include "WebUndoStep.h"
 105 #include "WebUserContentController.h"
 106 #include "WebUserMediaClient.h"
 107 #include <JavaScriptCore/APICast.h>
 108 #include <WebCore/ArchiveResource.h>
 109 #include <WebCore/Chrome.h>
 110 #include <WebCore/ContextMenuController.h>
 111 #include <WebCore/DataTransfer.h>
 112 #include <WebCore/DatabaseManager.h>
 113 #include <WebCore/DocumentFragment.h>
 114 #include <WebCore/DocumentLoader.h>
 115 #include <WebCore/DocumentMarkerController.h>
 116 #include <WebCore/DragController.h>
 117 #include <WebCore/DragData.h>
 118 #include <WebCore/ElementIterator.h>
 119 #include <WebCore/EventHandler.h>
 120 #include <WebCore/FocusController.h>
 121 #include <WebCore/FormState.h>
 122 #include <WebCore/FrameLoadRequest.h>
 123 #include <WebCore/FrameLoaderTypes.h>
 124 #include <WebCore/FrameView.h>
 125 #include <WebCore/HTMLFormElement.h>
 126 #include <WebCore/HTMLInputElement.h>
 127 #include <WebCore/HTMLPlugInElement.h>
 128 #include <WebCore/HTMLPlugInImageElement.h>
 129 #include <WebCore/HistoryController.h>
 130 #include <WebCore/HistoryItem.h>
 131 #include <WebCore/HitTestResult.h>
 132 #include <WebCore/JSDOMWindow.h>
 133 #include <WebCore/KeyboardEvent.h>
 134 #include <WebCore/MIMETypeRegistry.h>
 135 #include <WebCore/MainFrame.h>
 136 #include <WebCore/MouseEvent.h>
 137 #include <WebCore/Page.h>
 138 #include <WebCore/PageConfiguration.h>
 139 #include <WebCore/PageThrottler.h>
 140 #include <WebCore/PlatformKeyboardEvent.h>
 141 #include <WebCore/PluginDocument.h>
 142 #include <WebCore/PrintContext.h>
 143 #include <WebCore/Range.h>
 144 #include <WebCore/RenderLayer.h>
 145 #include <WebCore/RenderTreeAsText.h>
 146 #include <WebCore/RenderView.h>
 147 #include <WebCore/ResourceRequest.h>
 148 #include <WebCore/ResourceResponse.h>
 149 #include <WebCore/RuntimeEnabledFeatures.h>
 150 #include <WebCore/SchemeRegistry.h>
 151 #include <WebCore/ScriptController.h>
 152 #include <WebCore/SerializedScriptValue.h>
 153 #include <WebCore/SessionID.h>
 154 #include <WebCore/Settings.h>
 155 #include <WebCore/ShadowRoot.h>
 156 #include <WebCore/SharedBuffer.h>
 157 #include <WebCore/StyleProperties.h>
 158 #include <WebCore/SubframeLoader.h>
 159 #include <WebCore/SubstituteData.h>
 160 #include <WebCore/TextIterator.h>
 161 #include <WebCore/UserInputBridge.h>
 162 #include <WebCore/UserScript.h>
 163 #include <WebCore/UserStyleSheet.h>
 164 #include <WebCore/VisiblePosition.h>
 165 #include <WebCore/VisibleUnits.h>
 166 #include <WebCore/markup.h>
 167 #include <bindings/ScriptValue.h>
 168 #include <profiler/ProfilerDatabase.h>
 169 #include <runtime/JSCInlines.h>
 170 #include <runtime/JSCJSValue.h>
 171 #include <runtime/JSLock.h>
 172 #include <wtf/RunLoop.h>
 173 #include <wtf/TemporaryChange.h>
 174
 175 #if ENABLE(DATA_DETECTION)
 176 #include "DataDetectionResult.h"
 177 #endif
 178
 179 #if ENABLE(MHTML)
 180 #include <WebCore/MHTMLArchive.h>
 181 #endif
 182
 183 #if ENABLE(BATTERY_STATUS)
 184 #include "WebBatteryClient.h"
 185 #endif
 186
 187 #if ENABLE(VIBRATION)
 188 #include "WebVibrationClient.h"
 189 #endif
 190
 191 #if ENABLE(PROXIMITY_EVENTS)
 192 #include "WebDeviceProximityClient.h"
 193 #endif
 194
 195 #if PLATFORM(COCOA)
 196 #include "PDFPlugin.h"
 197 #include "RemoteLayerTreeTransaction.h"
 198 #include "WKStringCF.h"
 199 #include "WebVideoFullscreenManager.h"
 200 #include <WebCore/LegacyWebArchive.h>
 201 #endif
 202
 203 #if PLATFORM(GTK)
 204 #include <gtk/gtk.h>
 205 #include "DataObjectGtk.h"
 206 #include "WebPrintOperationGtk.h"
 207 #endif
 208
 209 #if PLATFORM(IOS)
 210 #include "RemoteLayerTreeDrawingArea.h"
 211 #include <CoreGraphics/CoreGraphics.h>
 212 #include <WebCore/CoreTextSPI.h>
 213 #include <WebCore/Icon.h>
 214 #endif
 215
 216 #ifndef NDEBUG
 217 #include <wtf/RefCountedLeakCounter.h>
 218 #endif
 219
 220 #if USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
 221 #include "LayerTreeHost.h"
 222 #endif
 223
 224 #if USE(COORDINATED_GRAPHICS_MULTIPROCESS)
 225 #include "CoordinatedLayerTreeHostMessages.h"
 226 #endif
 227
 228 #if ENABLE(DATA_DETECTION)
 229 #include <WebCore/DataDetection.h>
 230 #endif
 231
 232 #if ENABLE(VIDEO) && USE(GSTREAMER)
 233 #include <WebCore/MediaPlayerRequestInstallMissingPluginsCallback.h>
 234 #endif
 235
 236 #if USE(APPLE_INTERNAL_SDK)
 237 #include <WebKitAdditions/WebPageIncludes.h>
 238 #endif
 239
 240 using namespace JSC;
 241 using namespace WebCore;
 242
 243 namespace WebKit {
 244
 245 static const double pageScrollHysteresisSeconds = 0.3;
 246
 247 class SendStopResponsivenessTimer {
 248 public:
 249     SendStopResponsivenessTimer(WebPage* page)
 250         : m_page(page)
 251     {
 252     }
 253
 254     ~SendStopResponsivenessTimer()
 255     {
 256         m_page->send(Messages::WebPageProxy::StopResponsivenessTimer());
 257     }
 258
 259 private:
 260     WebPage* m_page;
 261 };
 262
 263 DEFINE_DEBUG_ONLY_GLOBAL(WTF::RefCountedLeakCounter, webPageCounter, ("WebPage"));
 264
 265 Ref<WebPage> WebPage::create(uint64_t pageID, const WebPageCreationParameters& parameters)
 266 {
 267     Ref<WebPage> page = adoptRef(*new WebPage(pageID, parameters));
 268
 269     if (page->pageGroup()->isVisibleToInjectedBundle() && WebProcess::singleton().injectedBundle())
 270         WebProcess::singleton().injectedBundle()->didCreatePage(page.ptr());
 271
 272     return page;
 273 }
 274
 275 WebPage::WebPage(uint64_t pageID, const WebPageCreationParameters& parameters)
 276     : m_pageID(pageID)
 277     , m_viewSize(parameters.viewSize)
 278     , m_hasSeenPlugin(false)
 279     , m_useFixedLayout(false)
 280     , m_drawsBackground(true)
 281     , m_isInRedo(false)
 282     , m_isClosed(false)
 283     , m_tabToLinks(false)
 284     , m_asynchronousPluginInitializationEnabled(false)
 285     , m_asynchronousPluginInitializationEnabledForAllPlugins(false)
 286     , m_artificialPluginInitializationDelayEnabled(false)
 287     , m_scrollingPerformanceLoggingEnabled(false)
 288     , m_mainFrameIsScrollable(true)
 289 #if ENABLE(PRIMARY_SNAPSHOTTED_PLUGIN_HEURISTIC)
 290     , m_readyToFindPrimarySnapshottedPlugin(false)
 291     , m_didFindPrimarySnapshottedPlugin(false)
 292     , m_numberOfPrimarySnapshotDetectionAttempts(0)
 293     , m_determinePrimarySnapshottedPlugInTimer(RunLoop::main(), this, &WebPage::determinePrimarySnapshottedPlugInTimerFired)
 294 #endif
 295     , m_layerHostingMode(parameters.layerHostingMode)
 296 #if PLATFORM(COCOA)
 297     , m_pdfPluginEnabled(false)
 298     , m_hasCachedWindowFrame(false)
 299     , m_viewGestureGeometryCollector(*this)
 300 #elif HAVE(ACCESSIBILITY) && (PLATFORM(GTK) || PLATFORM(EFL))
 301     , m_accessibilityObject(nullptr)
 302 #endif
 303     , m_setCanStartMediaTimer(RunLoop::main(), this, &WebPage::setCanStartMediaTimerFired)
 304 #if ENABLE(CONTEXT_MENUS)
 305     , m_contextMenuClient(std::make_unique<API::InjectedBundle::PageContextMenuClient>())
 306 #endif
 307     , m_formClient(std::make_unique<API::InjectedBundle::FormClient>())
 308     , m_uiClient(std::make_unique<API::InjectedBundle::PageUIClient>())
 309     , m_findController(this)
 310 #if ENABLE(INPUT_TYPE_COLOR)
 311     , m_activeColorChooser(0)
 312 #endif
 313     , m_userContentController(WebUserContentController::getOrCreate(parameters.userContentControllerID))
 314 #if ENABLE(GEOLOCATION)
 315     , m_geolocationPermissionRequestManager(this)
 316 #endif
 317 #if ENABLE(MEDIA_STREAM)
 318     , m_userMediaPermissionRequestManager(*this)
 319 #endif
 320     , m_pageScrolledHysteresis([this](HysteresisState state) { if (state == HysteresisState::Stopped) pageStoppedScrolling(); }, pageScrollHysteresisSeconds)
 321     , m_canRunBeforeUnloadConfirmPanel(parameters.canRunBeforeUnloadConfirmPanel)
 322     , m_canRunModal(parameters.canRunModal)
 323     , m_isRunningModal(false)
 324 #if ENABLE(DRAG_SUPPORT)
 325     , m_isStartingDrag(false)
 326 #endif
 327     , m_cachedMainFrameIsPinnedToLeftSide(true)
 328     , m_cachedMainFrameIsPinnedToRightSide(true)
 329     , m_cachedMainFrameIsPinnedToTopSide(true)
 330     , m_cachedMainFrameIsPinnedToBottomSide(true)
 331     , m_canShortCircuitHorizontalWheelEvents(false)
 332     , m_hasWheelEventHandlers(false)
 333     , m_cachedPageCount(0)
 334     , m_autoSizingShouldExpandToViewHeight(false)
 335 #if ENABLE(CONTEXT_MENUS)
 336     , m_isShowingContextMenu(false)
 337 #endif
 338 #if PLATFORM(IOS)
 339     , m_selectionAnchor(Start)
 340     , m_hasReceivedVisibleContentRectsAfterDidCommitLoad(false)
 341     , m_scaleWasSetByUIProcess(false)
 342     , m_userHasChangedPageScaleFactor(false)
 343     , m_hasStablePageScaleFactor(true)
 344     , m_userIsInteracting(false)
 345     , m_hasPendingBlurNotification(false)
 346     , m_useTestingViewportConfiguration(false)
 347     , m_isInStableState(true)
 348     , m_oldestNonStableUpdateVisibleContentRectsTimestamp(std::chrono::milliseconds::zero())
 349     , m_estimatedLatency(std::chrono::milliseconds::zero())
 350     , m_screenSize(parameters.screenSize)
 351     , m_availableScreenSize(parameters.availableScreenSize)
 352     , m_deviceOrientation(0)
 353     , m_inDynamicSizeUpdate(false)
 354     , m_volatilityTimer(*this, &WebPage::volatilityTimerFired)
 355 #endif
 356     , m_backgroundColor(Color::white)
 357     , m_maximumRenderingSuppressionToken(0)
 358     , m_scrollPinningBehavior(DoNotPin)
 359     , m_useAsyncScrolling(false)
 360     , m_viewState(parameters.viewState)
 361     , m_processSuppressionEnabled(true)
 362     , m_userActivity("Process suppression disabled for page.")
 363     , m_pendingNavigationID(0)
 364 #if ENABLE(WEBGL)
 365     , m_systemWebGLPolicy(WebGLAllowCreation)
 366 #endif
 367     , m_mainFrameProgressCompleted(false)
 368     , m_shouldDispatchFakeMouseMoveEvents(true)
 369     , m_mediaShouldUsePersistentCache(parameters.mediaShouldUsePersistentCache)
 370 {
 371     ASSERT(m_pageID);
 372
 373     m_pageGroup = WebProcess::singleton().webPageGroup(parameters.pageGroupData);
 374
 375 #if PLATFORM(IOS)
 376     Settings::setShouldManageAudioSessionCategory(true);
 377 #endif
 378
 379     PageConfiguration pageConfiguration;
 380     pageConfiguration.chromeClient = new WebChromeClient(this);
 381 #if ENABLE(CONTEXT_MENUS)
 382     pageConfiguration.contextMenuClient = new WebContextMenuClient(this);
 383 #endif
 384     pageConfiguration.editorClient = new WebEditorClient(this);
 385 #if ENABLE(DRAG_SUPPORT)
 386     pageConfiguration.dragClient = new WebDragClient(this);
 387 #endif
 388     pageConfiguration.backForwardClient = WebBackForwardListProxy::create(this);
 389     pageConfiguration.inspectorClient = new WebInspectorClient(this);
 390 #if USE(AUTOCORRECTION_PANEL)
 391     pageConfiguration.alternativeTextClient = new WebAlternativeTextClient(this);
 392 #endif
 393
 394     pageConfiguration.plugInClient = new WebPlugInClient(*this);
 395     pageConfiguration.loaderClientForMainFrame = new WebFrameLoaderClient;
 396     pageConfiguration.progressTrackerClient = new WebProgressTrackerClient(*this);
 397     pageConfiguration.diagnosticLoggingClient = new WebDiagnosticLoggingClient(*this);
 398
 399     pageConfiguration.databaseProvider = WebDatabaseProvider::getOrCreate(m_pageGroup->pageGroupID());
 400     pageConfiguration.storageNamespaceProvider = WebStorageNamespaceProvider::getOrCreate(m_pageGroup->pageGroupID());
 401     pageConfiguration.userContentProvider = m_userContentController.ptr();
 402     pageConfiguration.visitedLinkStore = VisitedLinkTableController::getOrCreate(parameters.visitedLinkTableID);
 403
 404 #if USE(APPLE_INTERNAL_SDK)
 405 #include <WebKitAdditions/WebPageInitialization.h>
 406 #endif
 407
 408     m_page = std::make_unique<Page>(pageConfiguration);
 409     updatePreferences(parameters.store);
 410
 411     m_drawingArea = DrawingArea::create(*this, parameters);
 412     m_drawingArea->setPaintingEnabled(false);
 413     m_drawingArea->setShouldScaleViewToFitDocument(parameters.shouldScaleViewToFitDocument);
 414
 415 #if ENABLE(ASYNC_SCROLLING)
 416     m_useAsyncScrolling = parameters.store.getBoolValueForKey(WebPreferencesKey::threadedScrollingEnabledKey());
 417     if (!m_drawingArea->supportsAsyncScrolling())
 418         m_useAsyncScrolling = false;
 419     m_page->settings().setScrollingCoordinatorEnabled(m_useAsyncScrolling);
 420 #endif
 421
 422     m_mainFrame = WebFrame::createWithCoreMainFrame(this, &m_page->mainFrame());
 423     m_drawingArea->updatePreferences(parameters.store);
 424
 425 #if ENABLE(BATTERY_STATUS)
 426     WebCore::provideBatteryTo(m_page.get(), new WebBatteryClient(this));
 427 #endif
 428 #if ENABLE(GEOLOCATION)
 429     WebCore::provideGeolocationTo(m_page.get(), new WebGeolocationClient(this));
 430 #endif
 431 #if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
 432     WebCore::provideNotification(m_page.get(), new WebNotificationClient(this));
 433 #endif
 434 #if ENABLE(VIBRATION)
 435     WebCore::provideVibrationTo(m_page.get(), new WebVibrationClient(this));
 436 #endif
 437 #if ENABLE(PROXIMITY_EVENTS)
 438     WebCore::provideDeviceProximityTo(m_page.get(), new WebDeviceProximityClient(this));
 439 #endif
 440 #if ENABLE(MEDIA_STREAM)
 441     WebCore::provideUserMediaTo(m_page.get(), new WebUserMediaClient(*this));
 442 #endif
 443
 444     m_page->setControlledByAutomation(parameters.controlledByAutomation);
 445
 446 #if ENABLE(REMOTE_INSPECTOR)
 447     m_page->setRemoteInspectionAllowed(parameters.allowsRemoteInspection);
 448     m_page->setRemoteInspectionNameOverride(parameters.remoteInspectionNameOverride);
 449 #endif
 450
 451     m_page->setCanStartMedia(false);
 452     m_mayStartMediaWhenInWindow = parameters.mayStartMediaWhenInWindow;
 453
 454     m_page->setGroupName(m_pageGroup->identifier());
 455     m_page->setDeviceScaleFactor(parameters.deviceScaleFactor);
 456 #if PLATFORM(IOS)
 457     m_page->setTextAutosizingWidth(parameters.textAutosizingWidth);
 458 #endif
 459
 460     platformInitialize();
 461
 462     setUseFixedLayout(parameters.useFixedLayout);
 463
 464     setDrawsBackground(parameters.drawsBackground);
 465
 466     setUnderlayColor(parameters.underlayColor);
 467
 468     setPaginationMode(parameters.paginationMode);
 469     setPaginationBehavesLikeColumns(parameters.paginationBehavesLikeColumns);
 470     setPageLength(parameters.pageLength);
 471     setGapBetweenPages(parameters.gapBetweenPages);
 472     setPaginationLineGridEnabled(parameters.paginationLineGridEnabled);
 473
 474     // If the page is created off-screen, its visibilityState should be prerender.
 475     m_page->setViewState(m_viewState);
 476     if (!isVisible())
 477         m_page->setIsPrerender();
 478     updateUserActivity();
 479
 480     updateIsInWindow(true);
 481
 482     setMinimumLayoutSize(parameters.minimumLayoutSize);
 483     setAutoSizingShouldExpandToViewHeight(parameters.autoSizingShouldExpandToViewHeight);
 484
 485     setScrollPinningBehavior(parameters.scrollPinningBehavior);
 486     if (parameters.scrollbarOverlayStyle)
 487         m_scrollbarOverlayStyle = static_cast<ScrollbarOverlayStyle>(parameters.scrollbarOverlayStyle.value());
 488     else
 489         m_scrollbarOverlayStyle = WTF::Optional<ScrollbarOverlayStyle>();
 490
 491     setBackgroundExtendsBeyondPage(parameters.backgroundExtendsBeyondPage);
 492
 493     setTopContentInset(parameters.topContentInset);
 494
 495     m_userAgent = parameters.userAgent;
 496
 497     WebBackForwardListProxy::setHighestItemIDFromUIProcess(parameters.highestUsedBackForwardItemID);
 498
 499     if (!parameters.itemStates.isEmpty())
 500         restoreSessionInternal(parameters.itemStates, WasRestoredByAPIRequest::No);
 501
 502     if (parameters.sessionID.isValid())
 503         setSessionID(parameters.sessionID);
 504
 505     m_drawingArea->setPaintingEnabled(true);
 506
 507     setMediaVolume(parameters.mediaVolume);
 508
 509     setMuted(parameters.muted);
 510
 511     // We use the DidFirstVisuallyNonEmptyLayout milestone to determine when to unfreeze the layer tree.
 512     m_page->addLayoutMilestones(DidFirstLayout | DidFirstVisuallyNonEmptyLayout);
 513
 514     auto& webProcess = WebProcess::singleton();
 515     webProcess.addMessageReceiver(Messages::WebPage::messageReceiverName(), m_pageID, *this);
 516
 517     // FIXME: This should be done in the object constructors, and the objects themselves should be message receivers.
 518 #if USE(COORDINATED_GRAPHICS_MULTIPROCESS)
 519     webProcess.addMessageReceiver(Messages::CoordinatedLayerTreeHost::messageReceiverName(), m_pageID, *this);
 520 #endif
 521     webProcess.addMessageReceiver(Messages::WebInspector::messageReceiverName(), m_pageID, *this);
 522     webProcess.addMessageReceiver(Messages::WebInspectorUI::messageReceiverName(), m_pageID, *this);
 523 #if ENABLE(FULLSCREEN_API)
 524     webProcess.addMessageReceiver(Messages::WebFullScreenManager::messageReceiverName(), m_pageID, *this);
 525 #endif
 526
 527 #ifndef NDEBUG
 528     webPageCounter.increment();
 529 #endif
 530
 531 #if ENABLE(ASYNC_SCROLLING)
 532     if (m_useAsyncScrolling)
 533         webProcess.eventDispatcher().addScrollingTreeForPage(this);
 534 #endif
 535
 536     for (auto& mimeType : parameters.mimeTypesWithCustomContentProviders)
 537         m_mimeTypesWithCustomContentProviders.add(mimeType);
 538
 539
 540 #if ENABLE(ENCRYPTED_MEDIA_V2)
 541     if (WebMediaKeyStorageManager* manager = webProcess.supplement<WebMediaKeyStorageManager>())
 542         m_page->settings().setMediaKeysStorageDirectory(manager->mediaKeyStorageDirectory());
 543 #endif
 544     m_page->settings().setAppleMailPaginationQuirkEnabled(parameters.appleMailPaginationQuirkEnabled);
 545
 546     if (parameters.viewScaleFactor != 1)
 547         scaleView(parameters.viewScaleFactor);
 548
 549 #if PLATFORM(COCOA)
 550     m_page->settings().setContentDispositionAttachmentSandboxEnabled(true);
 551 #endif
 552 }
 553
 554 void WebPage::reinitializeWebPage(const WebPageCreationParameters& parameters)
 555 {
 556     if (m_viewState != parameters.viewState)
 557         setViewState(parameters.viewState, false, Vector<uint64_t>());
 558     if (m_layerHostingMode != parameters.layerHostingMode)
 559         setLayerHostingMode(static_cast<unsigned>(parameters.layerHostingMode));
 560 }
 561
 562 void WebPage::setPageActivityState(PageActivityState::Flags activityState)
 563 {
 564     PageActivityState::Flags changed = m_activityState ^ activityState;
 565     m_activityState = activityState;
 566
 567     if (changed)
 568         updateUserActivity();
 569 }
 570
 571 void WebPage::updateUserActivity()
 572 {
 573     // Start the activity to prevent AppNap if the page activity is in progress,
 574     // the page is visible and non-idle, or process suppression is disabled.
 575     if (m_activityState || !(m_viewState & ViewState::IsVisuallyIdle) || !m_processSuppressionEnabled)
 576         m_userActivity.start();
 577     else
 578         m_userActivity.stop();
 579 }
 580
 581 WebPage::~WebPage()
 582 {
 583     if (m_backForwardList)
 584         m_backForwardList->detach();
 585
 586     ASSERT(!m_page);
 587
 588     auto& webProcess = WebProcess::singleton();
 589 #if ENABLE(ASYNC_SCROLLING)
 590     if (m_useAsyncScrolling)
 591         webProcess.eventDispatcher().removeScrollingTreeForPage(this);
 592 #endif
 593
 594     platformDetach();
 595
 596     m_sandboxExtensionTracker.invalidate();
 597
 598     for (auto* pluginView : m_pluginViews)
 599         pluginView->webPageDestroyed();
 600
 601 #if !PLATFORM(IOS)
 602     if (m_headerBanner)
 603         m_headerBanner->detachFromPage();
 604     if (m_footerBanner)
 605         m_footerBanner->detachFromPage();
 606 #endif // !PLATFORM(IOS)
 607
 608     webProcess.removeMessageReceiver(Messages::WebPage::messageReceiverName(), m_pageID);
 609
 610     // FIXME: This should be done in the object destructors, and the objects themselves should be message receivers.
 611 #if USE(COORDINATED_GRAPHICS_MULTIPROCESS)
 612     webProcess.removeMessageReceiver(Messages::CoordinatedLayerTreeHost::messageReceiverName(), m_pageID);
 613 #endif
 614     webProcess.removeMessageReceiver(Messages::WebInspector::messageReceiverName(), m_pageID);
 615     webProcess.removeMessageReceiver(Messages::WebInspectorUI::messageReceiverName(), m_pageID);
 616 #if ENABLE(FULLSCREEN_API)
 617     webProcess.removeMessageReceiver(Messages::WebFullScreenManager::messageReceiverName(), m_pageID);
 618 #endif
 619
 620 #ifndef NDEBUG
 621     webPageCounter.decrement();
 622 #endif
 623 }
 624
 625 void WebPage::dummy(bool&)
 626 {
 627 }
 628
 629 IPC::Connection* WebPage::messageSenderConnection()
 630 {
 631     return WebProcess::singleton().parentProcessConnection();
 632 }
 633
 634 uint64_t WebPage::messageSenderDestinationID()
 635 {
 636     return pageID();
 637 }
 638
 639 #if ENABLE(CONTEXT_MENUS)
 640 void WebPage::setInjectedBundleContextMenuClient(std::unique_ptr<API::InjectedBundle::PageContextMenuClient> contextMenuClient)
 641 {
 642     if (!contextMenuClient) {
 643         m_contextMenuClient = std::make_unique<API::InjectedBundle::PageContextMenuClient>();
 644         return;
 645     }
 646
 647     m_contextMenuClient = WTFMove(contextMenuClient);
 648 }
 649 #endif
 650
 651 void WebPage::initializeInjectedBundleEditorClient(WKBundlePageEditorClientBase* client)
 652 {
 653     m_editorClient.initialize(client);
 654 }
 655
 656 void WebPage::setInjectedBundleFormClient(std::unique_ptr<API::InjectedBundle::FormClient> formClient)
 657 {
 658     if (!formClient) {
 659         m_formClient = std::make_unique<API::InjectedBundle::FormClient>();
 660         return;
 661     }
 662
 663     m_formClient = WTFMove(formClient);
 664 }
 665
 666 void WebPage::initializeInjectedBundleLoaderClient(WKBundlePageLoaderClientBase* client)
 667 {
 668     m_loaderClient.initialize(client);
 669
 670     // It would be nice to get rid of this code and transition all clients to using didLayout instead of
 671     // didFirstLayoutInFrame and didFirstVisuallyNonEmptyLayoutInFrame. In the meantime, this is required
 672     // for backwards compatibility.
 673     LayoutMilestones milestones = 0;
 674     if (client) {
 675         if (m_loaderClient.client().didFirstLayoutForFrame)
 676             milestones |= WebCore::DidFirstLayout;
 677         if (m_loaderClient.client().didFirstVisuallyNonEmptyLayoutForFrame)
 678             milestones |= WebCore::DidFirstVisuallyNonEmptyLayout;
 679     }
 680
 681     if (milestones)
 682         listenForLayoutMilestones(milestones);
 683 }
 684
 685 void WebPage::initializeInjectedBundlePolicyClient(WKBundlePagePolicyClientBase* client)
 686 {
 687     m_policyClient.initialize(client);
 688 }
 689
 690 void WebPage::initializeInjectedBundleResourceLoadClient(WKBundlePageResourceLoadClientBase* client)
 691 {
 692     m_resourceLoadClient.initialize(client);
 693 }
 694
 695 void WebPage::setInjectedBundleUIClient(std::unique_ptr<API::InjectedBundle::PageUIClient> uiClient)
 696 {
 697     if (!uiClient) {
 698         m_uiClient = std::make_unique<API::InjectedBundle::PageUIClient>();
 699         return;
 700     }
 701
 702     m_uiClient = WTFMove(uiClient);
 703 }
 704
 705 #if ENABLE(FULLSCREEN_API)
 706 void WebPage::initializeInjectedBundleFullScreenClient(WKBundlePageFullScreenClientBase* client)
 707 {
 708     m_fullScreenClient.initialize(client);
 709 }
 710 #endif
 711
 712 void WebPage::initializeInjectedBundleDiagnosticLoggingClient(WKBundlePageDiagnosticLoggingClientBase* client)
 713 {
 714     m_logDiagnosticMessageClient.initialize(client);
 715 }
 716
 717 #if ENABLE(NETSCAPE_PLUGIN_API)
 718 PassRefPtr<Plugin> WebPage::createPlugin(WebFrame* frame, HTMLPlugInElement* pluginElement, const Plugin::Parameters& parameters, String& newMIMEType)
 719 {
 720     String frameURLString = frame->coreFrame()->loader().documentLoader()->responseURL().string();
 721     String pageURLString = m_page->mainFrame().loader().documentLoader()->responseURL().string();
 722
 723 #if ENABLE(PRIMARY_SNAPSHOTTED_PLUGIN_HEURISTIC)
 724     HTMLPlugInImageElement& pluginImageElement = downcast<HTMLPlugInImageElement>(*pluginElement);
 725     unsigned pluginArea = 0;
 726     PluginProcessType processType = pluginElement->displayState() == HTMLPlugInElement::WaitingForSnapshot && !(plugInIsPrimarySize(pluginImageElement, pluginArea) && !plugInIntersectsSearchRect(pluginImageElement)) ? PluginProcessTypeSnapshot : PluginProcessTypeNormal;
 727 #else
 728     PluginProcessType processType = pluginElement->displayState() == HTMLPlugInElement::WaitingForSnapshot ? PluginProcessTypeSnapshot : PluginProcessTypeNormal;
 729 #endif
 730
 731     bool allowOnlyApplicationPlugins = !frame->coreFrame()->loader().subframeLoader().allowPlugins();
 732
 733     uint64_t pluginProcessToken;
 734     uint32_t pluginLoadPolicy;
 735     String unavailabilityDescription;
 736     if (!sendSync(Messages::WebPageProxy::FindPlugin(parameters.mimeType, static_cast<uint32_t>(processType), parameters.url.string(), frameURLString, pageURLString, allowOnlyApplicationPlugins), Messages::WebPageProxy::FindPlugin::Reply(pluginProcessToken, newMIMEType, pluginLoadPolicy, unavailabilityDescription)))
 737         return nullptr;
 738
 739     PluginModuleLoadPolicy loadPolicy = static_cast<PluginModuleLoadPolicy>(pluginLoadPolicy);
 740     bool isBlockedPlugin = (loadPolicy == PluginModuleBlockedForSecurity) || (loadPolicy == PluginModuleBlockedForCompatibility);
 741
 742     if (isBlockedPlugin || !pluginProcessToken) {
 743 #if ENABLE(PDFKIT_PLUGIN)
 744         String path = parameters.url.path();
 745         if (shouldUsePDFPlugin() && (MIMETypeRegistry::isPDFOrPostScriptMIMEType(parameters.mimeType) || (parameters.mimeType.isEmpty() && (path.endsWith(".pdf", false) || path.endsWith(".ps", false))))) {
 746             RefPtr<PDFPlugin> pdfPlugin = PDFPlugin::create(frame);
 747             return pdfPlugin.release();
 748         }
 749 #else
 750         UNUSED_PARAM(frame);
 751 #endif
 752     }
 753
 754     if (isBlockedPlugin) {
 755         bool replacementObscured = false;
 756         if (is<RenderEmbeddedObject>(*pluginElement->renderer())) {
 757             auto& renderObject = downcast<RenderEmbeddedObject>(*pluginElement->renderer());
 758             renderObject.setPluginUnavailabilityReasonWithDescription(RenderEmbeddedObject::InsecurePluginVersion, unavailabilityDescription);
 759             replacementObscured = renderObject.isReplacementObscured();
 760             renderObject.setUnavailablePluginIndicatorIsHidden(replacementObscured);
 761         }
 762
 763         send(Messages::WebPageProxy::DidBlockInsecurePluginVersion(parameters.mimeType, parameters.url.string(), frameURLString, pageURLString, replacementObscured));
 764         return nullptr;
 765     }
 766
 767     if (!pluginProcessToken)
 768         return nullptr;
 769
 770     bool isRestartedProcess = (pluginElement->displayState() == HTMLPlugInElement::Restarting || pluginElement->displayState() == HTMLPlugInElement::RestartingWithPendingMouseClick);
 771     return PluginProxy::create(pluginProcessToken, isRestartedProcess);
 772 }
 773
 774 #endif // ENABLE(NETSCAPE_PLUGIN_API)
 775
 776 #if ENABLE(WEBGL) && !PLATFORM(COCOA)
 777 WebCore::WebGLLoadPolicy WebPage::webGLPolicyForURL(WebFrame*, const String& /* url */)
 778 {
 779     return WebGLAllowCreation;
 780 }
 781
 782 WebCore::WebGLLoadPolicy WebPage::resolveWebGLPolicyForURL(WebFrame*, const String& /* url */)
 783 {
 784     return WebGLAllowCreation;
 785 }
 786 #endif
 787
 788 EditorState WebPage::editorState(IncludePostLayoutDataHint shouldIncludePostLayoutData) const
 789 {
 790     Frame& frame = m_page->focusController().focusedOrMainFrame();
 791
 792     EditorState result;
 793
 794     if (PluginView* pluginView = focusedPluginViewForFrame(frame)) {
 795         if (!pluginView->getSelectionString().isNull()) {
 796             result.selectionIsNone = false;
 797             result.selectionIsRange = true;
 798             result.isInPlugin = true;
 799             return result;
 800         }
 801     }
 802
 803     const VisibleSelection& selection = frame.selection().selection();
 804
 805     result.selectionIsNone = selection.isNone();
 806     result.selectionIsRange = selection.isRange();
 807     result.isContentEditable = selection.isContentEditable();
 808     result.isContentRichlyEditable = selection.isContentRichlyEditable();
 809     result.isInPasswordField = selection.isInPasswordField();
 810     result.hasComposition = frame.editor().hasComposition();
 811     result.shouldIgnoreCompositionSelectionChange = frame.editor().ignoreCompositionSelectionChange();
 812
 813 #if PLATFORM(COCOA)
 814     if (shouldIncludePostLayoutData == IncludePostLayoutDataHint::Yes && result.isContentEditable) {
 815         auto& postLayoutData = result.postLayoutData();
 816         if (!selection.isNone()) {
 817             Node* nodeToRemove;
 818             if (RenderStyle* style = Editor::styleForSelectionStart(&frame, nodeToRemove)) {
 819                 if (style->fontCascade().weight() >= FontWeightBold)
 820                     postLayoutData.typingAttributes |= AttributeBold;
 821                 if (style->fontCascade().italic() == FontItalicOn)
 822                     postLayoutData.typingAttributes |= AttributeItalics;
 823
 824                 RefPtr<EditingStyle> typingStyle = frame.selection().typingStyle();
 825                 if (typingStyle && typingStyle->style()) {
 826                     String value = typingStyle->style()->getPropertyValue(CSSPropertyWebkitTextDecorationsInEffect);
 827                 if (value.contains("underline"))
 828                     postLayoutData.typingAttributes |= AttributeUnderline;
 829                 } else {
 830                     if (style->textDecorationsInEffect() & TextDecorationUnderline)
 831                         postLayoutData.typingAttributes |= AttributeUnderline;
 832                 }
 833
 834                 if (style->visitedDependentColor(CSSPropertyColor).isValid())
 835                     postLayoutData.textColor = style->visitedDependentColor(CSSPropertyColor);
 836
 837                 switch (style->textAlign()) {
 838                 case RIGHT:
 839                 case WEBKIT_RIGHT:
 840                     postLayoutData.textAlignment = RightAlignment;
 841                     break;
 842                 case LEFT:
 843                 case WEBKIT_LEFT:
 844                     postLayoutData.textAlignment = LeftAlignment;
 845                     break;
 846                 case CENTER:
 847                 case WEBKIT_CENTER:
 848                     postLayoutData.textAlignment = CenterAlignment;
 849                     break;
 850                 case JUSTIFY:
 851                     postLayoutData.textAlignment = JustifiedAlignment;
 852                     break;
 853                 case TASTART:
 854                     postLayoutData.textAlignment = style->isLeftToRightDirection() ? LeftAlignment : RightAlignment;
 855                     break;
 856                 case TAEND:
 857                     postLayoutData.textAlignment = style->isLeftToRightDirection() ? RightAlignment : LeftAlignment;
 858                     break;
 859                 }
 860
 861                 if (nodeToRemove)
 862                     nodeToRemove->remove(ASSERT_NO_EXCEPTION);
 863             }
 864         }
 865     }
 866 #endif
 867
 868     platformEditorState(frame, result, shouldIncludePostLayoutData);
 869
 870     return result;
 871 }
 872
 873 String WebPage::renderTreeExternalRepresentation() const
 874 {
 875     return externalRepresentation(m_mainFrame->coreFrame(), RenderAsTextBehaviorNormal);
 876 }
 877
 878 String WebPage::renderTreeExternalRepresentationForPrinting() const
 879 {
 880     return externalRepresentation(m_mainFrame->coreFrame(), RenderAsTextPrintingMode);
 881 }
 882
 883 uint64_t WebPage::renderTreeSize() const
 884 {
 885     if (!m_page)
 886         return 0;
 887     return m_page->renderTreeSize();
 888 }
 889
 890 void WebPage::setTracksRepaints(bool trackRepaints)
 891 {
 892     if (FrameView* view = mainFrameView())
 893         view->setTracksRepaints(trackRepaints);
 894 }
 895
 896 bool WebPage::isTrackingRepaints() const
 897 {
 898     if (FrameView* view = mainFrameView())
 899         return view->isTrackingRepaints();
 900
 901     return false;
 902 }
 903
 904 void WebPage::resetTrackedRepaints()
 905 {
 906     if (FrameView* view = mainFrameView())
 907         view->resetTrackedRepaints();
 908 }
 909
 910 Ref<API::Array> WebPage::trackedRepaintRects()
 911 {
 912     FrameView* view = mainFrameView();
 913     if (!view)
 914         return API::Array::create();
 915
 916     Vector<RefPtr<API::Object>> repaintRects;
 917     repaintRects.reserveInitialCapacity(view->trackedRepaintRects().size());
 918
 919     for (const auto& repaintRect : view->trackedRepaintRects())
 920         repaintRects.uncheckedAppend(API::Rect::create(toAPI(repaintRect)));
 921
 922     return API::Array::create(WTFMove(repaintRects));
 923 }
 924
 925 PluginView* WebPage::focusedPluginViewForFrame(Frame& frame)
 926 {
 927     if (!frame.document()->isPluginDocument())
 928         return 0;
 929
 930     PluginDocument* pluginDocument = static_cast<PluginDocument*>(frame.document());
 931
 932     if (pluginDocument->focusedElement() != pluginDocument->pluginElement())
 933         return 0;
 934
 935     PluginView* pluginView = static_cast<PluginView*>(pluginDocument->pluginWidget());
 936     return pluginView;
 937 }
 938
 939 PluginView* WebPage::pluginViewForFrame(Frame* frame)
 940 {
 941     if (!frame->document()->isPluginDocument())
 942         return 0;
 943
 944     PluginDocument* pluginDocument = static_cast<PluginDocument*>(frame->document());
 945     PluginView* pluginView = static_cast<PluginView*>(pluginDocument->pluginWidget());
 946     return pluginView;
 947 }
 948
 949 void WebPage::executeEditingCommand(const String& commandName, const String& argument)
 950 {
 951     Frame& frame = m_page->focusController().focusedOrMainFrame();
 952
 953     if (PluginView* pluginView = focusedPluginViewForFrame(frame)) {
 954         pluginView->handleEditingCommand(commandName, argument);
 955         return;
 956     }
 957
 958     frame.editor().command(commandName).execute(argument);
 959 }
 960
 961 void WebPage::setEditable(bool editable)
 962 {
 963     m_page->setEditable(editable);
 964     m_page->setTabKeyCyclesThroughElements(!editable);
 965     Frame& frame = m_page->focusController().focusedOrMainFrame();
 966     if (editable) {
 967         frame.editor().applyEditingStyleToBodyElement();
 968         // If the page is made editable and the selection is empty, set it to something.
 969         if (frame.selection().isNone())
 970             frame.selection().setSelectionFromNone();
 971     }
 972 }
 973
 974 bool WebPage::isEditingCommandEnabled(const String& commandName)
 975 {
 976     Frame& frame = m_page->focusController().focusedOrMainFrame();
 977
 978     if (PluginView* pluginView = focusedPluginViewForFrame(frame))
 979         return pluginView->isEditingCommandEnabled(commandName);
 980
 981     Editor::Command command = frame.editor().command(commandName);
 982     return command.isSupported() && command.isEnabled();
 983 }
 984
 985 void WebPage::clearMainFrameName()
 986 {
 987     if (Frame* frame = mainFrame())
 988         frame->tree().clearName();
 989 }
 990
 991 void WebPage::enterAcceleratedCompositingMode(GraphicsLayer* layer)
 992 {
 993     m_drawingArea->setRootCompositingLayer(layer);
 994 }
 995
 996 void WebPage::exitAcceleratedCompositingMode()
 997 {
 998     m_drawingArea->setRootCompositingLayer(0);
 999 }
1000
1001 void WebPage::close()
1002 {
1003     if (m_isClosed)
1004         return;
1005
1006     m_isClosed = true;
1007
1008     // If there is still no URL, then we never loaded anything in this page, so nothing to report.
1009     if (!mainWebFrame()->url().isEmpty())
1010         reportUsedFeatures();
1011
1012     if (pageGroup()->isVisibleToInjectedBundle() && WebProcess::singleton().injectedBundle())
1013         WebProcess::singleton().injectedBundle()->willDestroyPage(this);
1014
1015     if (m_inspector) {
1016         m_inspector->disconnectFromPage();
1017         m_inspector = nullptr;
1018     }
1019
1020 #if ENABLE(FULLSCREEN_API)
1021     m_fullScreenManager = nullptr;
1022 #endif
1023
1024     if (m_activePopupMenu) {
1025         m_activePopupMenu->disconnectFromPage();
1026         m_activePopupMenu = nullptr;
1027     }
1028
1029     if (m_activeOpenPanelResultListener) {
1030         m_activeOpenPanelResultListener->disconnectFromPage();
1031         m_activeOpenPanelResultListener = nullptr;
1032     }
1033
1034 #if ENABLE(INPUT_TYPE_COLOR)
1035     if (m_activeColorChooser) {
1036         m_activeColorChooser->disconnectFromPage();
1037         m_activeColorChooser = nullptr;
1038     }
1039 #endif
1040
1041 #if PLATFORM(GTK)
1042     if (m_printOperation) {
1043         m_printOperation->disconnectFromPage();
1044         m_printOperation = nullptr;
1045     }
1046 #endif
1047
1048 #if ENABLE(VIDEO) && USE(GSTREAMER)
1049     if (m_installMediaPluginsCallback) {
1050         m_installMediaPluginsCallback->invalidate();
1051         m_installMediaPluginsCallback = nullptr;
1052     }
1053 #endif
1054
1055     m_sandboxExtensionTracker.invalidate();
1056
1057 #if ENABLE(PRIMARY_SNAPSHOTTED_PLUGIN_HEURISTIC)
1058     m_determinePrimarySnapshottedPlugInTimer.stop();
1059 #endif
1060
1061 #if ENABLE(CONTEXT_MENUS)
1062     m_contextMenuClient = std::make_unique<API::InjectedBundle::PageContextMenuClient>();
1063 #endif
1064     m_editorClient.initialize(0);
1065     m_formClient = std::make_unique<API::InjectedBundle::FormClient>();
1066     m_loaderClient.initialize(0);
1067     m_policyClient.initialize(0);
1068     m_resourceLoadClient.initialize(0);
1069     m_uiClient = std::make_unique<API::InjectedBundle::PageUIClient>();
1070 #if ENABLE(FULLSCREEN_API)
1071     m_fullScreenClient.initialize(0);
1072 #endif
1073     m_logDiagnosticMessageClient.initialize(0);
1074
1075     m_printContext = nullptr;
1076     m_mainFrame->coreFrame()->loader().detachFromParent();
1077     m_page = nullptr;
1078     m_drawingArea = nullptr;
1079
1080     bool isRunningModal = m_isRunningModal;
1081     m_isRunningModal = false;
1082
1083     // The WebPage can be destroyed by this call.
1084     WebProcess::singleton().removeWebPage(m_pageID);
1085
1086     WebProcess::singleton().updateActivePages();
1087
1088     if (isRunningModal)
1089         RunLoop::main().stop();
1090 }
1091
1092 void WebPage::tryClose()
1093 {
1094     SendStopResponsivenessTimer stopper(this);
1095
1096     if (!corePage()->userInputBridge().tryClosePage()) {
1097         send(Messages::WebPageProxy::StopResponsivenessTimer());
1098         return;
1099     }
1100
1101     send(Messages::WebPageProxy::ClosePage(true));
1102 }
1103
1104 void WebPage::sendClose()
1105 {
1106     send(Messages::WebPageProxy::ClosePage(false));
1107 }
1108
1109 void WebPage::loadURLInFrame(const String& url, uint64_t frameID)
1110 {
1111     WebFrame* frame = WebProcess::singleton().webFrame(frameID);
1112     if (!frame)
1113         return;
1114
1115     frame->coreFrame()->loader().load(FrameLoadRequest(frame->coreFrame(), ResourceRequest(URL(URL(), url)), ShouldOpenExternalURLsPolicy::ShouldNotAllow));
1116 }
1117
1118 void WebPage::loadRequest(uint64_t navigationID, const ResourceRequest& request, const SandboxExtension::Handle& sandboxExtensionHandle, uint64_t shouldOpenExternalURLsPolicy, const UserData& userData)
1119 {
1120     SendStopResponsivenessTimer stopper(this);
1121
1122     m_pendingNavigationID = navigationID;
1123
1124     m_sandboxExtensionTracker.beginLoad(m_mainFrame.get(), sandboxExtensionHandle);
1125
1126     // Let the InjectedBundle know we are about to start the load, passing the user data from the UIProcess
1127     // to all the client to set up any needed state.
1128     m_loaderClient.willLoadURLRequest(this, request, WebProcess::singleton().transformHandlesToObjects(userData.object()).get());
1129
1130     // Initate the load in WebCore.
1131     FrameLoadRequest frameLoadRequest(m_mainFrame->coreFrame(), request, ShouldOpenExternalURLsPolicy::ShouldNotAllow);
1132     ShouldOpenExternalURLsPolicy externalURLsPolicy = static_cast<ShouldOpenExternalURLsPolicy>(shouldOpenExternalURLsPolicy);
1133     frameLoadRequest.setShouldOpenExternalURLsPolicy(externalURLsPolicy);
1134
1135     corePage()->userInputBridge().loadRequest(frameLoadRequest);
1136
1137     ASSERT(!m_pendingNavigationID);
1138 }
1139
1140 void WebPage::loadDataImpl(uint64_t navigationID, PassRefPtr<SharedBuffer> sharedBuffer, const String& MIMEType, const String& encodingName, const URL& baseURL, const URL& unreachableURL, const UserData& userData)
1141 {
1142     SendStopResponsivenessTimer stopper(this);
1143
1144     m_pendingNavigationID = navigationID;
1145
1146     ResourceRequest request(baseURL);
1147     ResourceResponse response(URL(), MIMEType, sharedBuffer->size(), encodingName);
1148     SubstituteData substituteData(sharedBuffer, unreachableURL, response, SubstituteData::SessionHistoryVisibility::Hidden);
1149
1150     // Let the InjectedBundle know we are about to start the load, passing the user data from the UIProcess
1151     // to all the client to set up any needed state.
1152     m_loaderClient.willLoadDataRequest(this, request, const_cast<SharedBuffer*>(substituteData.content()), substituteData.mimeType(), substituteData.textEncoding(), substituteData.failingURL(), WebProcess::singleton().transformHandlesToObjects(userData.object()).get());
1153
1154     // Initate the load in WebCore.
1155     m_mainFrame->coreFrame()->loader().load(FrameLoadRequest(m_mainFrame->coreFrame(), request, ShouldOpenExternalURLsPolicy::ShouldNotAllow, substituteData));
1156 }
1157
1158 void WebPage::loadString(uint64_t navigationID, const String& htmlString, const String& MIMEType, const URL& baseURL, const URL& unreachableURL, const UserData& userData)
1159 {
1160     if (!htmlString.isNull() && htmlString.is8Bit()) {
1161         RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(reinterpret_cast<const char*>(htmlString.characters8()), htmlString.length() * sizeof(LChar));
1162         loadDataImpl(navigationID, sharedBuffer, MIMEType, ASCIILiteral("latin1"), baseURL, unreachableURL, userData);
1163     } else {
1164         RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(reinterpret_cast<const char*>(htmlString.characters16()), htmlString.length() * sizeof(UChar));
1165         loadDataImpl(navigationID, sharedBuffer, MIMEType, ASCIILiteral("utf-16"), baseURL, unreachableURL, userData);
1166     }
1167 }
1168
1169 void WebPage::loadData(uint64_t navigationID, const IPC::DataReference& data, const String& MIMEType, const String& encodingName, const String& baseURLString, const UserData& userData)
1170 {
1171     RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(reinterpret_cast<const char*>(data.data()), data.size());
1172     URL baseURL = baseURLString.isEmpty() ? blankURL() : URL(URL(), baseURLString);
1173     loadDataImpl(navigationID, sharedBuffer, MIMEType, encodingName, baseURL, URL(), userData);
1174 }
1175
1176 void WebPage::loadHTMLString(uint64_t navigationID, const String& htmlString, const String& baseURLString, const UserData& userData)
1177 {
1178     URL baseURL = baseURLString.isEmpty() ? blankURL() : URL(URL(), baseURLString);
1179     loadString(navigationID, htmlString, ASCIILiteral("text/html"), baseURL, URL(), userData);
1180 }
1181
1182 void WebPage::loadAlternateHTMLString(const String& htmlString, const String& baseURLString, const String& unreachableURLString, const String& provisionalLoadErrorURLString, const UserData& userData)
1183 {
1184     URL baseURL = baseURLString.isEmpty() ? blankURL() : URL(URL(), baseURLString);
1185     URL unreachableURL = unreachableURLString.isEmpty() ? URL() : URL(URL(), unreachableURLString);
1186     URL provisionalLoadErrorURL = provisionalLoadErrorURLString.isEmpty() ? URL() : URL(URL(), provisionalLoadErrorURLString);
1187     m_mainFrame->coreFrame()->loader().setProvisionalLoadErrorBeingHandledURL(provisionalLoadErrorURL);
1188     loadString(0, htmlString, ASCIILiteral("text/html"), baseURL, unreachableURL, userData);
1189     m_mainFrame->coreFrame()->loader().setProvisionalLoadErrorBeingHandledURL({ });
1190 }
1191
1192 void WebPage::loadPlainTextString(const String& string, const UserData& userData)
1193 {
1194     loadString(0, string, ASCIILiteral("text/plain"), blankURL(), URL(), userData);
1195 }
1196
1197 void WebPage::loadWebArchiveData(const IPC::DataReference& webArchiveData, const UserData& userData)
1198 {
1199     RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(reinterpret_cast<const char*>(webArchiveData.data()), webArchiveData.size() * sizeof(uint8_t));
1200     loadDataImpl(0, sharedBuffer, ASCIILiteral("application/x-webarchive"), ASCIILiteral("utf-16"), blankURL(), URL(), userData);
1201 }
1202
1203 void WebPage::navigateToPDFLinkWithSimulatedClick(const String& url, IntPoint documentPoint, IntPoint screenPoint)
1204 {
1205     Frame* mainFrame = m_mainFrame->coreFrame();
1206     Document* mainFrameDocument = mainFrame->document();
1207     if (!mainFrameDocument)
1208         return;
1209
1210     const int singleClick = 1;
1211     RefPtr<MouseEvent> mouseEvent = MouseEvent::create(eventNames().clickEvent, true, true, currentTime(), nullptr, singleClick, screenPoint.x(), screenPoint.y(), documentPoint.x(), documentPoint.y(),
1212 #if ENABLE(POINTER_LOCK)
1213         0, 0,
1214 #endif
1215         false, false, false, false, 0, nullptr, 0, nullptr);
1216
1217     mainFrame->loader().urlSelected(mainFrameDocument->completeURL(url), emptyString(), mouseEvent.get(), LockHistory::No, LockBackForwardList::No, ShouldSendReferrer::MaybeSendReferrer, ShouldOpenExternalURLsPolicy::ShouldNotAllow);
1218 }
1219
1220 void WebPage::stopLoadingFrame(uint64_t frameID)
1221 {
1222     WebFrame* frame = WebProcess::singleton().webFrame(frameID);
1223     if (!frame)
1224         return;
1225
1226     corePage()->userInputBridge().stopLoadingFrame(frame->coreFrame());
1227 }
1228
1229 void WebPage::stopLoading()
1230 {
1231     SendStopResponsivenessTimer stopper(this);
1232
1233     corePage()->userInputBridge().stopLoadingFrame(m_mainFrame->coreFrame());
1234 }
1235
1236 bool WebPage::defersLoading() const
1237 {
1238     return m_page->defersLoading();
1239 }
1240
1241 void WebPage::setDefersLoading(bool defersLoading)
1242 {
1243     m_page->setDefersLoading(defersLoading);
1244 }
1245
1246 void WebPage::reload(uint64_t navigationID, bool reloadFromOrigin, bool contentBlockersEnabled, const SandboxExtension::Handle& sandboxExtensionHandle)
1247 {
1248     SendStopResponsivenessTimer stopper(this);
1249
1250     ASSERT(!m_mainFrame->coreFrame()->loader().frameHasLoaded() || !m_pendingNavigationID);
1251     m_pendingNavigationID = navigationID;
1252
1253     m_sandboxExtensionTracker.beginLoad(m_mainFrame.get(), sandboxExtensionHandle);
1254     corePage()->userInputBridge().reloadFrame(m_mainFrame->coreFrame(), reloadFromOrigin, contentBlockersEnabled);
1255 }
1256
1257 void WebPage::goForward(uint64_t navigationID, uint64_t backForwardItemID)
1258 {
1259     SendStopResponsivenessTimer stopper(this);
1260
1261     HistoryItem* item = WebBackForwardListProxy::itemForID(backForwardItemID);
1262     ASSERT(item);
1263     if (!item)
1264         return;
1265
1266     ASSERT(!m_pendingNavigationID);
1267     m_pendingNavigationID = navigationID;
1268
1269     m_page->goToItem(*item, FrameLoadType::Forward);
1270 }
1271
1272 void WebPage::goBack(uint64_t navigationID, uint64_t backForwardItemID)
1273 {
1274     SendStopResponsivenessTimer stopper(this);
1275
1276     HistoryItem* item = WebBackForwardListProxy::itemForID(backForwardItemID);
1277     ASSERT(item);
1278     if (!item)
1279         return;
1280
1281     ASSERT(!m_pendingNavigationID);
1282     m_pendingNavigationID = navigationID;
1283
1284     m_page->goToItem(*item, FrameLoadType::Back);
1285 }
1286
1287 void WebPage::goToBackForwardItem(uint64_t navigationID, uint64_t backForwardItemID)
1288 {
1289     SendStopResponsivenessTimer stopper(this);
1290
1291     HistoryItem* item = WebBackForwardListProxy::itemForID(backForwardItemID);
1292     ASSERT(item);
1293     if (!item)
1294         return;
1295
1296     ASSERT(!m_pendingNavigationID);
1297     m_pendingNavigationID = navigationID;
1298
1299     m_page->goToItem(*item, FrameLoadType::IndexedBackForward);
1300 }
1301
1302 void WebPage::tryRestoreScrollPosition()
1303 {
1304     m_page->mainFrame().loader().history().restoreScrollPositionAndViewState();
1305 }
1306
1307 void WebPage::layoutIfNeeded()
1308 {
1309     if (m_mainFrame->coreFrame()->view())
1310         m_mainFrame->coreFrame()->view()->updateLayoutAndStyleIfNeededRecursive();
1311 }
1312
1313 WebPage* WebPage::fromCorePage(Page* page)
1314 {
1315     return static_cast<WebChromeClient&>(page->chrome().client()).page();
1316 }
1317
1318 void WebPage::setSize(const WebCore::IntSize& viewSize)
1319 {
1320     if (m_viewSize == viewSize)
1321         return;
1322
1323     FrameView* view = m_page->mainFrame().view();
1324     view->resize(viewSize);
1325     m_drawingArea->setNeedsDisplay();
1326
1327     m_viewSize = viewSize;
1328
1329 #if USE(COORDINATED_GRAPHICS)
1330     if (view->useFixedLayout())
1331         sendViewportAttributesChanged();
1332 #endif
1333 }
1334
1335 #if USE(COORDINATED_GRAPHICS)
1336 void WebPage::setFixedVisibleContentRect(const IntRect& rect)
1337 {
1338     ASSERT(m_useFixedLayout);
1339
1340     m_page->mainFrame().view()->setFixedVisibleContentRect(rect);
1341 }
1342
1343 void WebPage::sendViewportAttributesChanged()
1344 {
1345     ASSERT(m_useFixedLayout);
1346
1347     // Viewport properties have no impact on zero sized fixed viewports.
1348     if (m_viewSize.isEmpty())
1349         return;
1350
1351     // Recalculate the recommended layout size, when the available size (device pixel) changes.
1352     Settings& settings = m_page->settings();
1353
1354     int minimumLayoutFallbackWidth = std::max(settings.layoutFallbackWidth(), m_viewSize.width());
1355
1356     // If unset  we use the viewport dimensions. This fits with the behavior of desktop browsers.
1357     int deviceWidth = (settings.deviceWidth() > 0) ? settings.deviceWidth() : m_viewSize.width();
1358     int deviceHeight = (settings.deviceHeight() > 0) ? settings.deviceHeight() : m_viewSize.height();
1359
1360     ViewportAttributes attr = computeViewportAttributes(m_page->viewportArguments(), minimumLayoutFallbackWidth, deviceWidth, deviceHeight, 1, m_viewSize);
1361
1362     FrameView* view = m_page->mainFrame().view();
1363
1364     // If no layout was done yet set contentFixedOrigin to (0,0).
1365     IntPoint contentFixedOrigin = view->didFirstLayout() ? view->fixedVisibleContentRect().location() : IntPoint();
1366
1367     // Put the width and height to the viewport width and height. In css units however.
1368     // Use FloatSize to avoid truncated values during scale.
1369     FloatSize contentFixedSize = m_viewSize;
1370
1371 #if ENABLE(CSS_DEVICE_ADAPTATION)
1372     // CSS viewport descriptors might be applied to already affected viewport size
1373     // if the page enables/disables stylesheets, so need to keep initial viewport size.
1374     view->setInitialViewportSize(roundedIntSize(contentFixedSize));
1375 #endif
1376
1377     contentFixedSize.scale(1 / attr.initialScale);
1378     setFixedVisibleContentRect(IntRect(contentFixedOrigin, roundedIntSize(contentFixedSize)));
1379
1380     attr.initialScale = m_page->viewportArguments().zoom; // Resets auto (-1) if no value was set by user.
1381
1382     // This also takes care of the relayout.
1383     setFixedLayoutSize(roundedIntSize(attr.layoutSize));
1384
1385 #if USE(COORDINATED_GRAPHICS_THREADED)
1386     if (m_drawingArea->layerTreeHost())
1387         m_drawingArea->layerTreeHost()->didChangeViewportProperties(attr);
1388 #else
1389     send(Messages::WebPageProxy::DidChangeViewportProperties(attr));
1390 #endif
1391 }
1392 #endif
1393
1394 void WebPage::scrollMainFrameIfNotAtMaxScrollPosition(const IntSize& scrollOffset)
1395 {
1396     FrameView* frameView = m_page->mainFrame().view();
1397
1398     ScrollPosition scrollPosition = frameView->scrollPosition();
1399     ScrollPosition maximumScrollPosition = frameView->maximumScrollPosition();
1400
1401     // If the current scroll position in a direction is the max scroll position
1402     // we don't want to scroll at all.
1403     IntSize newScrollOffset;
1404     if (scrollPosition.x() < maximumScrollPosition.x())
1405         newScrollOffset.setWidth(scrollOffset.width());
1406     if (scrollPosition.y() < maximumScrollPosition.y())
1407         newScrollOffset.setHeight(scrollOffset.height());
1408
1409     if (newScrollOffset.isZero())
1410         return;
1411
1412     frameView->setScrollPosition(frameView->scrollPosition() + newScrollOffset);
1413 }
1414
1415 void WebPage::drawRect(GraphicsContext& graphicsContext, const IntRect& rect)
1416 {
1417     GraphicsContextStateSaver stateSaver(graphicsContext);
1418     graphicsContext.clip(rect);
1419
1420     m_mainFrame->coreFrame()->view()->paint(graphicsContext, rect);
1421 }
1422
1423 double WebPage::textZoomFactor() const
1424 {
1425     PluginView* pluginView = pluginViewForFrame(&m_page->mainFrame());
1426     if (pluginView && pluginView->requiresUnifiedScaleFactor()) {
1427         if (pluginView->handlesPageScaleFactor())
1428             return pluginView->pageScaleFactor();
1429         return pageScaleFactor();
1430     }
1431
1432     Frame* frame = m_mainFrame->coreFrame();
1433     if (!frame)
1434         return 1;
1435     return frame->textZoomFactor();
1436 }
1437
1438 void WebPage::setTextZoomFactor(double zoomFactor)
1439 {
1440     PluginView* pluginView = pluginViewForFrame(&m_page->mainFrame());
1441     if (pluginView && pluginView->requiresUnifiedScaleFactor()) {
1442         if (pluginView->handlesPageScaleFactor())
1443             pluginView->setPageScaleFactor(zoomFactor, IntPoint());
1444         else
1445             scalePage(zoomFactor, IntPoint());
1446         return;
1447     }
1448
1449     Frame* frame = m_mainFrame->coreFrame();
1450     if (!frame)
1451         return;
1452     frame->setTextZoomFactor(static_cast<float>(zoomFactor));
1453 }
1454
1455 double WebPage::pageZoomFactor() const
1456 {
1457     PluginView* pluginView = pluginViewForFrame(&m_page->mainFrame());
1458     if (pluginView && pluginView->requiresUnifiedScaleFactor()) {
1459         if (pluginView->handlesPageScaleFactor())
1460             return pluginView->pageScaleFactor();
1461         return pageScaleFactor();
1462     }
1463
1464     Frame* frame = m_mainFrame->coreFrame();
1465     if (!frame)
1466         return 1;
1467     return frame->pageZoomFactor();
1468 }
1469
1470 void WebPage::setPageZoomFactor(double zoomFactor)
1471 {
1472     PluginView* pluginView = pluginViewForFrame(&m_page->mainFrame());
1473     if (pluginView && pluginView->requiresUnifiedScaleFactor()) {
1474         if (pluginView->handlesPageScaleFactor())
1475             pluginView->setPageScaleFactor(zoomFactor, IntPoint());
1476         else
1477             scalePage(zoomFactor, IntPoint());
1478         return;
1479     }
1480
1481     Frame* frame = m_mainFrame->coreFrame();
1482     if (!frame)
1483         return;
1484     frame->setPageZoomFactor(static_cast<float>(zoomFactor));
1485 }
1486
1487 void WebPage::setPageAndTextZoomFactors(double pageZoomFactor, double textZoomFactor)
1488 {
1489     PluginView* pluginView = pluginViewForFrame(&m_page->mainFrame());
1490     if (pluginView && pluginView->requiresUnifiedScaleFactor()) {
1491         if (pluginView->handlesPageScaleFactor())
1492             pluginView->setPageScaleFactor(pageZoomFactor, IntPoint());
1493         else
1494             scalePage(pageZoomFactor, IntPoint());
1495         return;
1496     }
1497
1498     Frame* frame = m_mainFrame->coreFrame();
1499     if (!frame)
1500         return;
1501     return frame->setPageAndTextZoomFactors(static_cast<float>(pageZoomFactor), static_cast<float>(textZoomFactor));
1502 }
1503
1504 void WebPage::windowScreenDidChange(uint32_t displayID)
1505 {
1506     m_page->chrome().windowScreenDidChange(static_cast<PlatformDisplayID>(displayID));
1507 }
1508
1509 void WebPage::scalePage(double scale, const IntPoint& origin)
1510 {
1511     double totalScale = scale * viewScaleFactor();
1512     bool willChangeScaleFactor = totalScale != totalScaleFactor();
1513
1514 #if PLATFORM(IOS)
1515     if (willChangeScaleFactor) {
1516         if (!m_inDynamicSizeUpdate)
1517             m_dynamicSizeUpdateHistory.clear();
1518         m_scaleWasSetByUIProcess = false;
1519     }
1520 #endif
1521     PluginView* pluginView = pluginViewForFrame(&m_page->mainFrame());
1522     if (pluginView && pluginView->handlesPageScaleFactor()) {
1523         // If the main-frame plugin wants to handle the page scale factor, make sure to reset WebCore's page scale.
1524         // Otherwise, we can end up with an immutable but non-1 page scale applied by WebCore on top of whatever the plugin does.
1525         if (m_page->pageScaleFactor() != 1) {
1526             m_page->setPageScaleFactor(1, origin);
1527             for (auto* pluginView : m_pluginViews)
1528                 pluginView->pageScaleFactorDidChange();
1529         }
1530
1531         pluginView->setPageScaleFactor(totalScale, origin);
1532         return;
1533     }
1534
1535     m_page->setPageScaleFactor(totalScale, origin);
1536
1537     // We can't early return before setPageScaleFactor because the origin might be different.
1538     if (!willChangeScaleFactor)
1539         return;
1540
1541     for (auto* pluginView : m_pluginViews)
1542         pluginView->pageScaleFactorDidChange();
1543
1544 #if USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
1545     if (m_drawingArea->layerTreeHost())
1546         m_drawingArea->layerTreeHost()->deviceOrPageScaleFactorChanged();
1547 #endif
1548
1549     send(Messages::WebPageProxy::PageScaleFactorDidChange(scale));
1550 }
1551
1552 void WebPage::scalePageInViewCoordinates(double scale, IntPoint centerInViewCoordinates)
1553 {
1554     double totalScale = scale * viewScaleFactor();
1555     if (totalScale == totalScaleFactor())
1556         return;
1557
1558     IntPoint scrollPositionAtNewScale = mainFrameView()->rootViewToContents(-centerInViewCoordinates);
1559     double scaleRatio = scale / pageScaleFactor();
1560     scrollPositionAtNewScale.scale(scaleRatio, scaleRatio);
1561     scalePage(scale, scrollPositionAtNewScale);
1562 }
1563
1564 double WebPage::totalScaleFactor() const
1565 {
1566     PluginView* pluginView = pluginViewForFrame(&m_page->mainFrame());
1567     if (pluginView && pluginView->handlesPageScaleFactor())
1568         return pluginView->pageScaleFactor();
1569
1570     return m_page->pageScaleFactor();
1571 }
1572
1573 double WebPage::pageScaleFactor() const
1574 {
1575     return totalScaleFactor() / viewScaleFactor();
1576 }
1577
1578 double WebPage::viewScaleFactor() const
1579 {
1580     return m_page->viewScaleFactor();
1581 }
1582
1583 void WebPage::scaleView(double scale)
1584 {
1585     if (viewScaleFactor() == scale)
1586         return;
1587
1588     float pageScale = pageScaleFactor();
1589
1590     IntPoint scrollPositionAtNewScale;
1591     if (FrameView* mainFrameView = m_page->mainFrame().view()) {
1592         double scaleRatio = scale / viewScaleFactor();
1593         scrollPositionAtNewScale = mainFrameView->scrollPosition();
1594         scrollPositionAtNewScale.scale(scaleRatio, scaleRatio);
1595     }
1596
1597     m_page->setViewScaleFactor(scale);
1598     scalePage(pageScale, scrollPositionAtNewScale);
1599 }
1600
1601 void WebPage::setDeviceScaleFactor(float scaleFactor)
1602 {
1603     if (scaleFactor == m_page->deviceScaleFactor())
1604         return;
1605
1606     m_page->setDeviceScaleFactor(scaleFactor);
1607
1608     // Tell all our plug-in views that the device scale factor changed.
1609 #if PLATFORM(MAC)
1610     for (auto* pluginView : m_pluginViews)
1611         pluginView->setDeviceScaleFactor(scaleFactor);
1612
1613     updateHeaderAndFooterLayersForDeviceScaleChange(scaleFactor);
1614 #endif
1615
1616     if (m_findController.isShowingOverlay()) {
1617         // We must have updated layout to get the selection rects right.
1618         layoutIfNeeded();
1619         m_findController.deviceScaleFactorDidChange();
1620     }
1621
1622 #if USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
1623     if (m_drawingArea->layerTreeHost())
1624         m_drawingArea->layerTreeHost()->deviceOrPageScaleFactorChanged();
1625 #endif
1626 }
1627
1628 float WebPage::deviceScaleFactor() const
1629 {
1630     return m_page->deviceScaleFactor();
1631 }
1632
1633 void WebPage::setUseFixedLayout(bool fixed)
1634 {
1635     // Do not overwrite current settings if initially setting it to false.
1636     if (m_useFixedLayout == fixed)
1637         return;
1638     m_useFixedLayout = fixed;
1639
1640 #if !PLATFORM(IOS)
1641     m_page->settings().setFixedElementsLayoutRelativeToFrame(fixed);
1642 #endif
1643 #if USE(COORDINATED_GRAPHICS)
1644     m_page->settings().setAcceleratedCompositingForFixedPositionEnabled(fixed);
1645     m_page->settings().setFixedPositionCreatesStackingContext(fixed);
1646     m_page->settings().setDelegatesPageScaling(fixed);
1647     m_page->settings().setScrollingCoordinatorEnabled(fixed);
1648 #endif
1649
1650 #if USE(COORDINATED_GRAPHICS) && ENABLE(SMOOTH_SCROLLING)
1651     // Delegated scrolling will be enabled when the FrameView is created if fixed layout is enabled.
1652     // Ensure we don't do animated scrolling in the WebProcess in that case.
1653     m_page->settings().setScrollAnimatorEnabled(!fixed);
1654 #endif
1655
1656     FrameView* view = mainFrameView();
1657     if (!view)
1658         return;
1659
1660 #if USE(COORDINATED_GRAPHICS)
1661     view->setDelegatesScrolling(fixed);
1662     view->setPaintsEntireContents(fixed);
1663 #endif
1664     view->setUseFixedLayout(fixed);
1665     if (!fixed)
1666         setFixedLayoutSize(IntSize());
1667
1668     send(Messages::WebPageProxy::UseFixedLayoutDidChange(fixed));
1669 }
1670
1671 void WebPage::setFixedLayoutSize(const IntSize& size)
1672 {
1673     FrameView* view = mainFrameView();
1674     if (!view || view->fixedLayoutSize() == size)
1675         return;
1676
1677     view->setFixedLayoutSize(size);
1678
1679     send(Messages::WebPageProxy::FixedLayoutSizeDidChange(size));
1680 }
1681
1682 IntSize WebPage::fixedLayoutSize() const
1683 {
1684     FrameView* view = mainFrameView();
1685     if (!view)
1686         return IntSize();
1687     return view->fixedLayoutSize();
1688 }
1689
1690 void WebPage::listenForLayoutMilestones(uint32_t milestones)
1691 {
1692     if (!m_page)
1693         return;
1694     m_page->addLayoutMilestones(static_cast<LayoutMilestones>(milestones));
1695 }
1696
1697 void WebPage::setSuppressScrollbarAnimations(bool suppressAnimations)
1698 {
1699     m_page->setShouldSuppressScrollbarAnimations(suppressAnimations);
1700 }
1701
1702 void WebPage::setEnableVerticalRubberBanding(bool enableVerticalRubberBanding)
1703 {
1704     m_page->setVerticalScrollElasticity(enableVerticalRubberBanding ? ScrollElasticityAllowed : ScrollElasticityNone);
1705 }
1706
1707 void WebPage::setEnableHorizontalRubberBanding(bool enableHorizontalRubberBanding)
1708 {
1709     m_page->setHorizontalScrollElasticity(enableHorizontalRubberBanding ? ScrollElasticityAllowed : ScrollElasticityNone);
1710 }
1711
1712 void WebPage::setBackgroundExtendsBeyondPage(bool backgroundExtendsBeyondPage)
1713 {
1714     if (m_page->settings().backgroundShouldExtendBeyondPage() != backgroundExtendsBeyondPage)
1715         m_page->settings().setBackgroundShouldExtendBeyondPage(backgroundExtendsBeyondPage);
1716 }
1717
1718 void WebPage::setPaginationMode(uint32_t mode)
1719 {
1720     Pagination pagination = m_page->pagination();
1721     pagination.mode = static_cast<Pagination::Mode>(mode);
1722     m_page->setPagination(pagination);
1723 }
1724
1725 void WebPage::setPaginationBehavesLikeColumns(bool behavesLikeColumns)
1726 {
1727     Pagination pagination = m_page->pagination();
1728     pagination.behavesLikeColumns = behavesLikeColumns;
1729     m_page->setPagination(pagination);
1730 }
1731
1732 void WebPage::setPageLength(double pageLength)
1733 {
1734     Pagination pagination = m_page->pagination();
1735     pagination.pageLength = pageLength;
1736     m_page->setPagination(pagination);
1737 }
1738
1739 void WebPage::setGapBetweenPages(double gap)
1740 {
1741     Pagination pagination = m_page->pagination();
1742     pagination.gap = gap;
1743     m_page->setPagination(pagination);
1744 }
1745
1746 void WebPage::setPaginationLineGridEnabled(bool lineGridEnabled)
1747 {
1748     m_page->setPaginationLineGridEnabled(lineGridEnabled);
1749 }
1750
1751 void WebPage::postInjectedBundleMessage(const String& messageName, const UserData& userData)
1752 {
1753     auto& webProcess = WebProcess::singleton();
1754     InjectedBundle* injectedBundle = webProcess.injectedBundle();
1755     if (!injectedBundle)
1756         return;
1757
1758     injectedBundle->didReceiveMessageToPage(this, messageName, webProcess.transformHandlesToObjects(userData.object()).get());
1759 }
1760
1761 #if !PLATFORM(IOS)
1762 void WebPage::setHeaderPageBanner(PassRefPtr<PageBanner> pageBanner)
1763 {
1764     if (m_headerBanner)
1765         m_headerBanner->detachFromPage();
1766
1767     m_headerBanner = pageBanner;
1768
1769     if (m_headerBanner)
1770         m_headerBanner->addToPage(PageBanner::Header, this);
1771 }
1772
1773 PageBanner* WebPage::headerPageBanner()
1774 {
1775     return m_headerBanner.get();
1776 }
1777
1778 void WebPage::setFooterPageBanner(PassRefPtr<PageBanner> pageBanner)
1779 {
1780     if (m_footerBanner)
1781         m_footerBanner->detachFromPage();
1782
1783     m_footerBanner = pageBanner;
1784
1785     if (m_footerBanner)
1786         m_footerBanner->addToPage(PageBanner::Footer, this);
1787 }
1788
1789 PageBanner* WebPage::footerPageBanner()
1790 {
1791     return m_footerBanner.get();
1792 }
1793
1794 void WebPage::hidePageBanners()
1795 {
1796     if (m_headerBanner)
1797         m_headerBanner->hide();
1798     if (m_footerBanner)
1799         m_footerBanner->hide();
1800 }
1801
1802 void WebPage::showPageBanners()
1803 {
1804     if (m_headerBanner)
1805         m_headerBanner->showIfHidden();
1806     if (m_footerBanner)
1807         m_footerBanner->showIfHidden();
1808 }
1809 #endif // !PLATFORM(IOS)
1810
1811 void WebPage::takeSnapshot(IntRect snapshotRect, IntSize bitmapSize, uint32_t options, uint64_t callbackID)
1812 {
1813     SnapshotOptions snapshotOptions = static_cast<SnapshotOptions>(options);
1814     snapshotOptions |= SnapshotOptionsShareable;
1815
1816     RefPtr<WebImage> image = snapshotAtSize(snapshotRect, bitmapSize, snapshotOptions);
1817
1818     ShareableBitmap::Handle handle;
1819     if (image)
1820         image->bitmap()->createHandle(handle, SharedMemory::Protection::ReadOnly);
1821
1822     send(Messages::WebPageProxy::ImageCallback(handle, callbackID));
1823 }
1824
1825 PassRefPtr<WebImage> WebPage::scaledSnapshotWithOptions(const IntRect& rect, double additionalScaleFactor, SnapshotOptions options)
1826 {
1827     IntRect snapshotRect = rect;
1828     IntSize bitmapSize = snapshotRect.size();
1829     if (options & SnapshotOptionsPrinting) {
1830         ASSERT(additionalScaleFactor == 1);
1831         Frame* coreFrame = m_mainFrame->coreFrame();
1832         if (!coreFrame)
1833             return nullptr;
1834         bitmapSize.setHeight(PrintContext::numberOfPages(*coreFrame, bitmapSize) * (bitmapSize.height() + 1) - 1);
1835     } else {
1836         double scaleFactor = additionalScaleFactor;
1837         if (!(options & SnapshotOptionsExcludeDeviceScaleFactor))
1838             scaleFactor *= corePage()->deviceScaleFactor();
1839         bitmapSize.scale(scaleFactor);
1840     }
1841
1842     return snapshotAtSize(rect, bitmapSize, options);
1843 }
1844
1845 PassRefPtr<WebImage> WebPage::snapshotAtSize(const IntRect& rect, const IntSize& bitmapSize, SnapshotOptions options)
1846 {
1847     Frame* coreFrame = m_mainFrame->coreFrame();
1848     if (!coreFrame)
1849         return nullptr;
1850
1851     FrameView* frameView = coreFrame->view();
1852     if (!frameView)
1853         return nullptr;
1854
1855     IntRect snapshotRect = rect;
1856     float horizontalScaleFactor = static_cast<float>(bitmapSize.width()) / rect.width();
1857     float verticalScaleFactor = static_cast<float>(bitmapSize.height()) / rect.height();
1858     float scaleFactor = std::max(horizontalScaleFactor, verticalScaleFactor);
1859
1860     RefPtr<WebImage> snapshot = WebImage::create(bitmapSize, snapshotOptionsToImageOptions(options));
1861     if (!snapshot->bitmap())
1862         return nullptr;
1863
1864     auto graphicsContext = snapshot->bitmap()->createGraphicsContext();
1865
1866     if (options & SnapshotOptionsPrinting) {
1867         PrintContext::spoolAllPagesWithBoundaries(*coreFrame, *graphicsContext, snapshotRect.size());
1868         return snapshot.release();
1869     }
1870
1871     Color documentBackgroundColor = frameView->documentBackgroundColor();
1872     Color backgroundColor = (coreFrame->settings().backgroundShouldExtendBeyondPage() && documentBackgroundColor.isValid()) ? documentBackgroundColor : frameView->baseBackgroundColor();
1873     graphicsContext->fillRect(IntRect(IntPoint(), bitmapSize), backgroundColor);
1874
1875     if (!(options & SnapshotOptionsExcludeDeviceScaleFactor)) {
1876         double deviceScaleFactor = corePage()->deviceScaleFactor();
1877         graphicsContext->applyDeviceScaleFactor(deviceScaleFactor);
1878         scaleFactor /= deviceScaleFactor;
1879     }
1880
1881     graphicsContext->scale(FloatSize(scaleFactor, scaleFactor));
1882     graphicsContext->translate(-snapshotRect.x(), -snapshotRect.y());
1883
1884     FrameView::SelectionInSnapshot shouldPaintSelection = FrameView::IncludeSelection;
1885     if (options & SnapshotOptionsExcludeSelectionHighlighting)
1886         shouldPaintSelection = FrameView::ExcludeSelection;
1887
1888     FrameView::CoordinateSpaceForSnapshot coordinateSpace = FrameView::DocumentCoordinates;
1889     if (options & SnapshotOptionsInViewCoordinates)
1890         coordinateSpace = FrameView::ViewCoordinates;
1891
1892     frameView->paintContentsForSnapshot(*graphicsContext, snapshotRect, shouldPaintSelection, coordinateSpace);
1893
1894     if (options & SnapshotOptionsPaintSelectionRectangle) {
1895         FloatRect selectionRectangle = m_mainFrame->coreFrame()->selection().selectionBounds();
1896         graphicsContext->setStrokeColor(Color(0xFF, 0, 0));
1897         graphicsContext->strokeRect(selectionRectangle, 1);
1898     }
1899
1900     return snapshot.release();
1901 }
1902
1903 PassRefPtr<WebImage> WebPage::snapshotNode(WebCore::Node& node, SnapshotOptions options, unsigned maximumPixelCount)
1904 {
1905     Frame* coreFrame = m_mainFrame->coreFrame();
1906     if (!coreFrame)
1907         return nullptr;
1908
1909     FrameView* frameView = coreFrame->view();
1910     if (!frameView)
1911         return nullptr;
1912
1913     if (!node.renderer())
1914         return nullptr;
1915
1916     LayoutRect topLevelRect;
1917     IntRect snapshotRect = snappedIntRect(node.renderer()->paintingRootRect(topLevelRect));
1918     if (snapshotRect.isEmpty())
1919         return nullptr;
1920
1921     double scaleFactor = 1;
1922     IntSize snapshotSize = snapshotRect.size();
1923     unsigned maximumHeight = maximumPixelCount / snapshotSize.width();
1924     if (maximumHeight < static_cast<unsigned>(snapshotSize.height())) {
1925         scaleFactor = static_cast<double>(maximumHeight) / snapshotSize.height();
1926         snapshotSize = IntSize(snapshotSize.width() * scaleFactor, maximumHeight);
1927     }
1928
1929     RefPtr<WebImage> snapshot = WebImage::create(snapshotSize, snapshotOptionsToImageOptions(options));
1930     if (!snapshot->bitmap())
1931         return nullptr;
1932
1933     auto graphicsContext = snapshot->bitmap()->createGraphicsContext();
1934
1935     if (!(options & SnapshotOptionsExcludeDeviceScaleFactor)) {
1936         double deviceScaleFactor = corePage()->deviceScaleFactor();
1937         graphicsContext->applyDeviceScaleFactor(deviceScaleFactor);
1938         scaleFactor /= deviceScaleFactor;
1939     }
1940
1941     graphicsContext->scale(FloatSize(scaleFactor, scaleFactor));
1942     graphicsContext->translate(-snapshotRect.x(), -snapshotRect.y());
1943
1944     Color savedBackgroundColor = frameView->baseBackgroundColor();
1945     frameView->setBaseBackgroundColor(Color::transparent);
1946     frameView->setNodeToDraw(&node);
1947
1948     frameView->paintContentsForSnapshot(*graphicsContext, snapshotRect, FrameView::ExcludeSelection, FrameView::DocumentCoordinates);
1949
1950     frameView->setBaseBackgroundColor(savedBackgroundColor);
1951     frameView->setNodeToDraw(nullptr);
1952
1953     return snapshot.release();
1954 }
1955
1956 void WebPage::pageDidScroll()
1957 {
1958 #if PLATFORM(IOS)
1959     if (!m_inDynamicSizeUpdate)
1960         m_dynamicSizeUpdateHistory.clear();
1961 #endif
1962     m_uiClient->pageDidScroll(this);
1963
1964     m_pageScrolledHysteresis.impulse();
1965
1966     send(Messages::WebPageProxy::PageDidScroll());
1967 }
1968
1969 void WebPage::pageStoppedScrolling()
1970 {
1971     // Maintain the current history item's scroll position up-to-date.
1972     if (Frame* frame = m_mainFrame->coreFrame())
1973         frame->loader().history().saveScrollPositionAndViewStateToItem(frame->loader().history().currentItem());
1974 }
1975
1976 #if USE(COORDINATED_GRAPHICS)
1977 void WebPage::pageDidRequestScroll(const IntPoint& point)
1978 {
1979 #if USE(COORDINATED_GRAPHICS_THREADED)
1980     drawingArea()->scroll(IntRect(point, IntSize()), IntSize());
1981 #elif USE(COORDINATED_GRAPHICS_MULTIPROCESS)
1982     send(Messages::WebPageProxy::PageDidRequestScroll(point));
1983 #endif
1984 }
1985 #endif
1986
1987 #if ENABLE(CONTEXT_MENUS)
1988 WebContextMenu* WebPage::contextMenu()
1989 {
1990     if (!m_contextMenu)
1991         m_contextMenu = WebContextMenu::create(this);
1992     return m_contextMenu.get();
1993 }
1994
1995 WebContextMenu* WebPage::contextMenuAtPointInWindow(const IntPoint& point)
1996 {
1997     corePage()->contextMenuController().clearContextMenu();
1998
1999     // Simulate a mouse click to generate the correct menu.
2000     PlatformMouseEvent mouseEvent(point, point, RightButton, PlatformEvent::MousePressed, 1, false, false, false, false, currentTime(), WebCore::ForceAtClick);
2001     bool handled = corePage()->userInputBridge().handleContextMenuEvent(mouseEvent, &corePage()->mainFrame());
2002     if (!handled)
2003         return 0;
2004
2005     return contextMenu();
2006 }
2007 #endif
2008
2009 // Events
2010
2011 static const WebEvent* g_currentEvent = 0;
2012
2013 // FIXME: WebPage::currentEvent is used by the plug-in code to avoid having to convert from DOM events back to
2014 // WebEvents. When we get the event handling sorted out, this should go away and the Widgets should get the correct
2015 // platform events passed to the event handler code.
2016 const WebEvent* WebPage::currentEvent()
2017 {
2018     return g_currentEvent;
2019 }
2020
2021 void WebPage::setLayerTreeStateIsFrozen(bool frozen)
2022 {
2023     auto* drawingArea = this->drawingArea();
2024     if (!drawingArea)
2025         return;
2026
2027     drawingArea->setLayerTreeStateIsFrozen(frozen);
2028 }
2029
2030 bool WebPage::markLayersVolatileImmediatelyIfPossible()
2031 {
2032     auto* drawingArea = this->drawingArea();
2033     if (!drawingArea)
2034         return true;
2035
2036     return drawingArea->markLayersVolatileImmediatelyIfPossible();
2037 }
2038
2039 class CurrentEvent {
2040 public:
2041     explicit CurrentEvent(const WebEvent& event)
2042         : m_previousCurrentEvent(g_currentEvent)
2043     {
2044         g_currentEvent = &event;
2045     }
2046
2047     ~CurrentEvent()
2048     {
2049         g_currentEvent = m_previousCurrentEvent;
2050     }
2051
2052 private:
2053     const WebEvent* m_previousCurrentEvent;
2054 };
2055
2056 #if ENABLE(CONTEXT_MENUS)
2057 static bool isContextClick(const PlatformMouseEvent& event)
2058 {
2059 #if PLATFORM(COCOA)
2060     return WebEventFactory::shouldBeHandledAsContextClick(event);
2061 #else
2062     return event.button() == WebCore::RightButton;
2063 #endif
2064 }
2065
2066 static bool handleContextMenuEvent(const PlatformMouseEvent& platformMouseEvent, WebPage* page)
2067 {
2068     IntPoint point = page->corePage()->mainFrame().view()->windowToContents(platformMouseEvent.position());
2069     HitTestResult result = page->corePage()->mainFrame().eventHandler().hitTestResultAtPoint(point);
2070
2071     Frame* frame = &page->corePage()->mainFrame();
2072     if (result.innerNonSharedNode())
2073         frame = result.innerNonSharedNode()->document().frame();
2074
2075     bool handled = page->corePage()->userInputBridge().handleContextMenuEvent(platformMouseEvent, frame);
2076     if (handled)
2077         page->contextMenu()->show();
2078
2079     return handled;
2080 }
2081 #endif
2082
2083 static bool handleMouseEvent(const WebMouseEvent& mouseEvent, WebPage* page, bool onlyUpdateScrollbars)
2084 {
2085     Frame& frame = page->corePage()->mainFrame();
2086     if (!frame.view())
2087         return false;
2088
2089     PlatformMouseEvent platformMouseEvent = platform(mouseEvent);
2090
2091     switch (platformMouseEvent.type()) {
2092         case PlatformEvent::MousePressed: {
2093 #if ENABLE(CONTEXT_MENUS)
2094             if (isContextClick(platformMouseEvent))
2095                 page->corePage()->contextMenuController().clearContextMenu();
2096 #endif
2097
2098             bool handled = page->corePage()->userInputBridge().handleMousePressEvent(platformMouseEvent);
2099 #if ENABLE(CONTEXT_MENUS)
2100             if (isContextClick(platformMouseEvent))
2101                 handled = handleContextMenuEvent(platformMouseEvent, page);
2102 #endif
2103             return handled;
2104         }
2105         case PlatformEvent::MouseReleased:
2106             return page->corePage()->userInputBridge().handleMouseReleaseEvent(platformMouseEvent);
2107
2108         case PlatformEvent::MouseMoved:
2109             if (onlyUpdateScrollbars)
2110                 return page->corePage()->userInputBridge().handleMouseMoveOnScrollbarEvent(platformMouseEvent);
2111             return page->corePage()->userInputBridge().handleMouseMoveEvent(platformMouseEvent);
2112
2113         case PlatformEvent::MouseForceChanged:
2114         case PlatformEvent::MouseForceDown:
2115         case PlatformEvent::MouseForceUp:
2116             return page->corePage()->userInputBridge().handleMouseForceEvent(platformMouseEvent);
2117
2118         default:
2119             ASSERT_NOT_REACHED();
2120             return false;
2121     }
2122 }
2123
2124 void WebPage::mouseEvent(const WebMouseEvent& mouseEvent)
2125 {
2126     m_page->pageThrottler().didReceiveUserInput();
2127
2128     bool shouldHandleEvent = true;
2129
2130 #if ENABLE(CONTEXT_MENUS)
2131     // Don't try to handle any pending mouse events if a context menu is showing.
2132     if (m_isShowingContextMenu)
2133         shouldHandleEvent = false;
2134 #endif
2135 #if ENABLE(DRAG_SUPPORT)
2136     if (m_isStartingDrag)
2137         shouldHandleEvent = false;
2138 #endif
2139
2140     if (!shouldHandleEvent) {
2141         send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(mouseEvent.type()), false));
2142         return;
2143     }
2144
2145     bool handled = false;
2146
2147 #if !PLATFORM(IOS)
2148     if (!handled && m_headerBanner)
2149         handled = m_headerBanner->mouseEvent(mouseEvent);
2150     if (!handled && m_footerBanner)
2151         handled = m_footerBanner->mouseEvent(mouseEvent);
2152 #endif // !PLATFORM(IOS)
2153
2154     if (!handled && canHandleUserEvents()) {
2155         CurrentEvent currentEvent(mouseEvent);
2156
2157         // We need to do a full, normal hit test during this mouse event if the page is active or if a mouse
2158         // button is currently pressed. It is possible that neither of those things will be true since on
2159         // Lion when legacy scrollbars are enabled, WebKit receives mouse events all the time. If it is one
2160         // of those cases where the page is not active and the mouse is not pressed, then we can fire a more
2161         // efficient scrollbars-only version of the event.
2162         bool onlyUpdateScrollbars = !(m_page->focusController().isActive() || (mouseEvent.button() != WebMouseEvent::NoButton));
2163         handled = handleMouseEvent(mouseEvent, this, onlyUpdateScrollbars);
2164     }
2165
2166     send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(mouseEvent.type()), handled));
2167 }
2168
2169 static bool handleWheelEvent(const WebWheelEvent& wheelEvent, Page* page)
2170 {
2171     Frame& frame = page->mainFrame();
2172     if (!frame.view())
2173         return false;
2174
2175     PlatformWheelEvent platformWheelEvent = platform(wheelEvent);
2176     return page->userInputBridge().handleWheelEvent(platformWheelEvent);
2177 }
2178
2179 void WebPage::wheelEvent(const WebWheelEvent& wheelEvent)
2180 {
2181     m_page->pageThrottler().didReceiveUserInput();
2182
2183     bool handled = false;
2184
2185     if (canHandleUserEvents()) {
2186         CurrentEvent currentEvent(wheelEvent);
2187
2188         handled = handleWheelEvent(wheelEvent, m_page.get());
2189     }
2190     send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(wheelEvent.type()), handled));
2191 }
2192
2193 static bool handleKeyEvent(const WebKeyboardEvent& keyboardEvent, Page* page)
2194 {
2195     if (!page->mainFrame().view())
2196         return false;
2197
2198     if (keyboardEvent.type() == WebEvent::Char && keyboardEvent.isSystemKey())
2199         return page->userInputBridge().handleAccessKeyEvent(platform(keyboardEvent));
2200     return page->userInputBridge().handleKeyEvent(platform(keyboardEvent));
2201 }
2202
2203 void WebPage::keyEvent(const WebKeyboardEvent& keyboardEvent)
2204 {
2205     m_page->pageThrottler().didReceiveUserInput();
2206
2207     bool handled = false;
2208
2209     if (canHandleUserEvents()) {
2210         CurrentEvent currentEvent(keyboardEvent);
2211
2212         handled = handleKeyEvent(keyboardEvent, m_page.get());
2213         // FIXME: Platform default behaviors should be performed during normal DOM event dispatch (in most cases, in default keydown event handler).
2214         if (!handled)
2215             handled = performDefaultBehaviorForKeyEvent(keyboardEvent);
2216     }
2217     send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(keyboardEvent.type()), handled));
2218 }
2219
2220 void WebPage::validateCommand(const String& commandName, uint64_t callbackID)
2221 {
2222     bool isEnabled = false;
2223     int32_t state = 0;
2224     Frame& frame = m_page->focusController().focusedOrMainFrame();
2225     if (PluginView* pluginView = focusedPluginViewForFrame(frame))
2226         isEnabled = pluginView->isEditingCommandEnabled(commandName);
2227     else {
2228         Editor::Command command = frame.editor().command(commandName);
2229         state = command.state();
2230         isEnabled = command.isSupported() && command.isEnabled();
2231     }
2232
2233     send(Messages::WebPageProxy::ValidateCommandCallback(commandName, isEnabled, state, callbackID));
2234 }
2235
2236 void WebPage::executeEditCommand(const String& commandName, const String& argument)
2237 {
2238     executeEditingCommand(commandName, argument);
2239 }
2240
2241 void WebPage::restoreSessionInternal(const Vector<BackForwardListItemState>& itemStates, WasRestoredByAPIRequest restoredByAPIRequest)
2242 {
2243     for (const auto& itemState : itemStates) {
2244         auto historyItem = toHistoryItem(itemState.pageState);
2245         historyItem->setWasRestoredFromSession(restoredByAPIRequest == WasRestoredByAPIRequest::Yes);
2246         WebBackForwardListProxy::addItemFromUIProcess(itemState.identifier, WTFMove(historyItem), m_pageID);
2247     }
2248 }
2249
2250 void WebPage::restoreSession(const Vector<BackForwardListItemState>& itemStates)
2251 {
2252     restoreSessionInternal(itemStates, WasRestoredByAPIRequest::Yes);
2253 }
2254
2255 #if ENABLE(TOUCH_EVENTS)
2256 static bool handleTouchEvent(const WebTouchEvent& touchEvent, Page* page)
2257 {
2258     if (!page->mainFrame().view())
2259         return false;
2260
2261     return page->mainFrame().eventHandler().handleTouchEvent(platform(touchEvent));
2262 }
2263 #endif
2264
2265 #if ENABLE(IOS_TOUCH_EVENTS)
2266 void WebPage::dispatchTouchEvent(const WebTouchEvent& touchEvent, bool& handled)
2267 {
2268     m_userIsInteracting = true;
2269
2270     m_lastInteractionLocation = touchEvent.position();
2271     CurrentEvent currentEvent(touchEvent);
2272     handled = handleTouchEvent(touchEvent, m_page.get());
2273
2274     m_userIsInteracting = false;
2275 }
2276
2277 void WebPage::touchEventSync(const WebTouchEvent& touchEvent, bool& handled)
2278 {
2279     EventDispatcher::TouchEventQueue queuedEvents;
2280     WebProcess::singleton().eventDispatcher().getQueuedTouchEventsForPage(*this, queuedEvents);
2281     dispatchAsynchronousTouchEvents(queuedEvents);
2282
2283     dispatchTouchEvent(touchEvent, handled);
2284 }
2285 #elif ENABLE(TOUCH_EVENTS)
2286 void WebPage::touchEvent(const WebTouchEvent& touchEvent)
2287 {
2288
2289     bool handled = false;
2290     if (canHandleUserEvents()) {
2291         CurrentEvent currentEvent(touchEvent);
2292
2293         handled = handleTouchEvent(touchEvent, m_page.get());
2294     }
2295     send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(touchEvent.type()), handled));
2296 }
2297 #endif
2298
2299 #if ENABLE(MAC_GESTURE_EVENTS)
2300 static bool handleGestureEvent(const WebGestureEvent& event, Page* page)
2301 {
2302     if (!page->mainFrame().view())
2303         return false;
2304
2305     return page->mainFrame().eventHandler().handleGestureEvent(platform(event));
2306 }
2307
2308 void WebPage::gestureEvent(const WebGestureEvent& gestureEvent)
2309 {
2310     bool handled = false;
2311     if (canHandleUserEvents()) {
2312         CurrentEvent currentEvent(gestureEvent);
2313         handled = handleGestureEvent(gestureEvent, m_page.get());
2314     }
2315     send(Messages::WebPageProxy::DidReceiveEvent(static_cast<uint32_t>(gestureEvent.type()), handled));
2316 }
2317
2318 #endif
2319
2320 bool WebPage::scroll(Page* page, ScrollDirection direction, ScrollGranularity granularity)
2321 {
2322     return page->userInputBridge().scrollRecursively(direction, granularity);
2323 }
2324
2325 bool WebPage::logicalScroll(Page* page, ScrollLogicalDirection direction, ScrollGranularity granularity)
2326 {
2327     return page->userInputBridge().logicalScrollRecursively(direction, granularity);
2328 }
2329
2330 bool WebPage::scrollBy(uint32_t scrollDirection, uint32_t scrollGranularity)
2331 {
2332     return scroll(m_page.get(), static_cast<ScrollDirection>(scrollDirection), static_cast<ScrollGranularity>(scrollGranularity));
2333 }
2334
2335 void WebPage::centerSelectionInVisibleArea()
2336 {
2337     Frame& frame = m_page->focusController().focusedOrMainFrame();
2338     frame.selection().revealSelection(ScrollAlignment::alignCenterAlways);
2339     m_findController.showFindIndicatorInSelection();
2340 }
2341
2342 bool WebPage::isControlledByAutomation() const
2343 {
2344     return m_page->isControlledByAutomation();
2345 }
2346
2347 void WebPage::setControlledByAutomation(bool controlled)
2348 {
2349     m_page->setControlledByAutomation(controlled);
2350 }
2351
2352 void WebPage::insertNewlineInQuotedContent()
2353 {
2354     Frame& frame = m_page->focusController().focusedOrMainFrame();
2355     if (frame.selection().isNone())
2356         return;
2357     frame.editor().insertParagraphSeparatorInQuotedContent();
2358 }
2359
2360 #if ENABLE(REMOTE_INSPECTOR)
2361 void WebPage::setAllowsRemoteInspection(bool allow)
2362 {
2363     m_page->setRemoteInspectionAllowed(allow);
2364 }
2365
2366 void WebPage::setRemoteInspectionNameOverride(const String& name)
2367 {
2368     m_page->setRemoteInspectionNameOverride(name);
2369 }
2370 #endif
2371
2372 void WebPage::setDrawsBackground(bool drawsBackground)
2373 {
2374     if (m_drawsBackground == drawsBackground)
2375         return;
2376
2377     m_drawsBackground = drawsBackground;
2378
2379     for (Frame* coreFrame = m_mainFrame->coreFrame(); coreFrame; coreFrame = coreFrame->tree().traverseNext()) {
2380         if (FrameView* view = coreFrame->view())
2381             view->setTransparent(!drawsBackground);
2382     }
2383
2384     m_drawingArea->pageBackgroundTransparencyChanged();
2385     m_drawingArea->setNeedsDisplay();
2386 }
2387
2388 void WebPage::setTopContentInset(float contentInset)
2389 {
2390     if (contentInset == m_page->topContentInset())
2391         return;
2392
2393     m_page->setTopContentInset(contentInset);
2394
2395     for (auto* pluginView : m_pluginViews)
2396         pluginView->topContentInsetDidChange();
2397 }
2398
2399 void WebPage::viewWillStartLiveResize()
2400 {
2401     if (!m_page)
2402         return;
2403
2404     // FIXME: This should propagate to all ScrollableAreas.
2405     Frame& frame = m_page->focusController().focusedOrMainFrame();
2406     if (FrameView* view = frame.view())
2407         view->willStartLiveResize();
2408 }
2409
2410 void WebPage::viewWillEndLiveResize()
2411 {
2412     if (!m_page)
2413         return;
2414
2415     // FIXME: This should propagate to all ScrollableAreas.
2416     Frame& frame = m_page->focusController().focusedOrMainFrame();
2417     if (FrameView* view = frame.view())
2418         view->willEndLiveResize();
2419 }
2420
2421 void WebPage::setInitialFocus(bool forward, bool isKeyboardEventValid, const WebKeyboardEvent& event, uint64_t callbackID)
2422 {
2423     if (!m_page)
2424         return;
2425
2426 #if PLATFORM(IOS)
2427     TemporaryChange<bool> userIsInteractingChange { m_userIsInteracting, true };
2428 #endif
2429
2430     Frame& frame = m_page->focusController().focusedOrMainFrame();
2431     frame.document()->setFocusedElement(0);
2432
2433     if (isKeyboardEventValid && event.type() == WebEvent::KeyDown) {
2434         PlatformKeyboardEvent platformEvent(platform(event));
2435         platformEvent.disambiguateKeyDownEvent(PlatformEvent::RawKeyDown);
2436         m_page->focusController().setInitialFocus(forward ? FocusDirectionForward : FocusDirectionBackward, &KeyboardEvent::create(platformEvent, frame.document()->defaultView()).get());
2437
2438         send(Messages::WebPageProxy::VoidCallback(callbackID));
2439         return;
2440     }
2441
2442     m_page->focusController().setInitialFocus(forward ? FocusDirectionForward : FocusDirectionBackward, 0);
2443     send(Messages::WebPageProxy::VoidCallback(callbackID));
2444 }
2445
2446 void WebPage::setCanStartMediaTimerFired()
2447 {
2448     if (m_page)
2449         m_page->setCanStartMedia(true);
2450 }
2451
2452 inline bool WebPage::canHandleUserEvents() const
2453 {
2454 #if USE(COORDINATED_GRAPHICS)
2455     // Should apply only if the area was frozen by didStartPageTransition().
2456     return !m_drawingArea->layerTreeStateIsFrozen();
2457 #endif
2458     return true;
2459 }
2460
2461 void WebPage::updateIsInWindow(bool isInitialState)
2462 {
2463     bool isInWindow = m_viewState & WebCore::ViewState::IsInWindow;
2464
2465     if (!isInWindow) {
2466         m_setCanStartMediaTimer.stop();
2467         m_page->setCanStartMedia(false);
2468
2469         // The WebProcess does not yet know about this page; no need to tell it we're leaving the window.
2470         if (!isInitialState)
2471             WebProcess::singleton().pageWillLeaveWindow(m_pageID);
2472     } else {
2473         // Defer the call to Page::setCanStartMedia() since it ends up sending a synchronous message to the UI process
2474         // in order to get plug-in connections, and the UI process will be waiting for the Web process to update the backing
2475         // store after moving the view into a window, until it times out and paints white. See <rdar://problem/9242771>.
2476         if (m_mayStartMediaWhenInWindow)
2477             m_setCanStartMediaTimer.startOneShot(0);
2478
2479         WebProcess::singleton().pageDidEnterWindow(m_pageID);
2480     }
2481
2482     if (isInWindow)
2483         layoutIfNeeded();
2484 }
2485
2486 void WebPage::setViewState(ViewState::Flags viewState, bool wantsDidUpdateViewState, const Vector<uint64_t>& callbackIDs)
2487 {
2488     ViewState::Flags changed = m_viewState ^ viewState;
2489     m_viewState = viewState;
2490
2491     if (changed)
2492         updateUserActivity();
2493
2494     m_page->setViewState(viewState);
2495     for (auto* pluginView : m_pluginViews)
2496         pluginView->viewStateDidChange(changed);
2497
2498     m_drawingArea->viewStateDidChange(changed, wantsDidUpdateViewState, callbackIDs);
2499
2500     if (changed & ViewState::IsInWindow)
2501         updateIsInWindow();
2502 }
2503
2504 void WebPage::setLayerHostingMode(unsigned layerHostingMode)
2505 {
2506     m_layerHostingMode = static_cast<LayerHostingMode>(layerHostingMode);
2507
2508     m_drawingArea->setLayerHostingMode(m_layerHostingMode);
2509
2510     for (auto* pluginView : m_pluginViews)
2511         pluginView->setLayerHostingMode(m_layerHostingMode);
2512 }
2513
2514 void WebPage::setSessionID(SessionID sessionID)
2515 {
2516     if (sessionID.isEphemeral())
2517         WebProcess::singleton().ensurePrivateBrowsingSession(sessionID);
2518     m_page->setSessionID(sessionID);
2519 }
2520
2521 void WebPage::didReceivePolicyDecision(uint64_t frameID, uint64_t listenerID, uint32_t policyAction, uint64_t navigationID, DownloadID downloadID)
2522 {
2523     WebFrame* frame = WebProcess::singleton().webFrame(frameID);
2524     if (!frame)
2525         return;
2526     frame->didReceivePolicyDecision(listenerID, static_cast<PolicyAction>(policyAction), navigationID, downloadID);
2527 }
2528
2529 void WebPage::didStartPageTransition()
2530 {
2531     m_drawingArea->setLayerTreeStateIsFrozen(true);
2532 #if PLATFORM(IOS)
2533     m_hasFocusedDueToUserInteraction = false;
2534 #endif
2535 }
2536
2537 void WebPage::didCompletePageTransition()
2538 {
2539 #if USE(COORDINATED_GRAPHICS_MULTIPROCESS)
2540     // m_mainFrame can be null since r170163.
2541     if (m_mainFrame && m_mainFrame->coreFrame()->view()->delegatesScrolling()) {
2542         // Wait until the UI process sent us the visible rect it wants rendered.
2543         send(Messages::WebPageProxy::PageTransitionViewportReady());
2544     } else
2545 #endif
2546
2547     m_drawingArea->setLayerTreeStateIsFrozen(false);
2548 }
2549
2550 void WebPage::show()
2551 {
2552     send(Messages::WebPageProxy::ShowPage());
2553 }
2554
2555 String WebPage::userAgent(const URL& webCoreURL) const
2556 {
2557     return userAgent(nullptr, webCoreURL);
2558 }
2559
2560 String WebPage::userAgent(WebFrame* frame, const URL& webcoreURL) const
2561 {
2562     if (frame && m_loaderClient.client().userAgentForURL) {
2563         API::String* apiString = m_loaderClient.userAgentForURL(frame, API::URL::create(webcoreURL).ptr());
2564         if (apiString)
2565             return apiString->string();
2566     }
2567
2568     String userAgent = platformUserAgent(webcoreURL);
2569     if (!userAgent.isEmpty())
2570         return userAgent;
2571     return m_userAgent;
2572 }
2573
2574 void WebPage::setUserAgent(const String& userAgent)
2575 {
2576     m_userAgent = userAgent;
2577 }
2578
2579 void WebPage::suspendActiveDOMObjectsAndAnimations()
2580 {
2581     m_page->suspendActiveDOMObjectsAndAnimations();
2582 }
2583
2584 void WebPage::resumeActiveDOMObjectsAndAnimations()
2585 {
2586     m_page->resumeActiveDOMObjectsAndAnimations();
2587 }
2588
2589 IntPoint WebPage::screenToRootView(const IntPoint& point)
2590 {
2591     IntPoint windowPoint;
2592     sendSync(Messages::WebPageProxy::ScreenToRootView(point), Messages::WebPageProxy::ScreenToRootView::Reply(windowPoint));
2593     return windowPoint;
2594 }
2595
2596 IntRect WebPage::rootViewToScreen(const IntRect& rect)
2597 {
2598     IntRect screenRect;
2599     sendSync(Messages::WebPageProxy::RootViewToScreen(rect), Messages::WebPageProxy::RootViewToScreen::Reply(screenRect));
2600     return screenRect;
2601 }
2602
2603 #if PLATFORM(IOS)
2604 IntPoint WebPage::accessibilityScreenToRootView(const IntPoint& point)
2605 {
2606     IntPoint windowPoint;
2607     sendSync(Messages::WebPageProxy::AccessibilityScreenToRootView(point), Messages::WebPageProxy::AccessibilityScreenToRootView::Reply(windowPoint));
2608     return windowPoint;
2609 }
2610
2611 IntRect WebPage::rootViewToAccessibilityScreen(const IntRect& rect)
2612 {
2613     IntRect screenRect;
2614     sendSync(Messages::WebPageProxy::RootViewToAccessibilityScreen(rect), Messages::WebPageProxy::RootViewToAccessibilityScreen::Reply(screenRect));
2615     return screenRect;
2616 }
2617 #endif
2618
2619 KeyboardUIMode WebPage::keyboardUIMode()
2620 {
2621     bool fullKeyboardAccessEnabled = WebProcess::singleton().fullKeyboardAccessEnabled();
2622     return static_cast<KeyboardUIMode>((fullKeyboardAccessEnabled ? KeyboardAccessFull : KeyboardAccessDefault) | (m_tabToLinks ? KeyboardAccessTabsToLinks : 0));
2623 }
2624
2625 void WebPage::runJavaScriptInMainFrame(const String& script, uint64_t callbackID)
2626 {
2627     // NOTE: We need to be careful when running scripts that the objects we depend on don't
2628     // disappear during script execution.
2629
2630     RefPtr<SerializedScriptValue> serializedResultValue;
2631     JSLockHolder lock(JSDOMWindow::commonVM());
2632     bool hadException = true;
2633     ExceptionDetails details;
2634     if (JSValue resultValue = m_mainFrame->coreFrame()->script().executeScript(script, true, &details).jsValue()) {
2635         hadException = false;
2636         serializedResultValue = SerializedScriptValue::create(m_mainFrame->jsContext(),
2637             toRef(m_mainFrame->coreFrame()->script().globalObject(mainThreadNormalWorld())->globalExec(), resultValue), nullptr);
2638     }
2639
2640     IPC::DataReference dataReference;
2641     if (serializedResultValue)
2642         dataReference = serializedResultValue->data();
2643     send(Messages::WebPageProxy::ScriptValueCallback(dataReference, hadException, details, callbackID));
2644 }
2645
2646 void WebPage::getContentsAsString(uint64_t callbackID)
2647 {
2648     String resultString = m_mainFrame->contentsAsString();
2649     send(Messages::WebPageProxy::StringCallback(resultString, callbackID));
2650 }
2651
2652 #if ENABLE(MHTML)
2653 void WebPage::getContentsAsMHTMLData(uint64_t callbackID)
2654 {
2655     RefPtr<SharedBuffer> buffer = MHTMLArchive::generateMHTMLData(m_page.get());
2656
2657     // FIXME: Use SharedBufferDataReference.
2658     IPC::DataReference dataReference;
2659     if (buffer)
2660         dataReference = IPC::DataReference(reinterpret_cast<const uint8_t*>(buffer->data()), buffer->size());
2661     send(Messages::WebPageProxy::DataCallback(dataReference, callbackID));
2662 }
2663 #endif
2664
2665 void WebPage::getRenderTreeExternalRepresentation(uint64_t callbackID)
2666 {
2667     String resultString = renderTreeExternalRepresentation();
2668     send(Messages::WebPageProxy::StringCallback(resultString, callbackID));
2669 }
2670
2671 static Frame* frameWithSelection(Page* page)
2672 {
2673     for (Frame* frame = &page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
2674         if (frame->selection().isRange())
2675             return frame;
2676     }
2677
2678     return 0;
2679 }
2680
2681 void WebPage::getSelectionAsWebArchiveData(uint64_t callbackID)
2682 {
2683 #if PLATFORM(COCOA)
2684     RetainPtr<CFDataRef> data;
2685     if (Frame* frame = frameWithSelection(m_page.get()))
2686         data = LegacyWebArchive::createFromSelection(frame)->rawDataRepresentation();
2687 #endif
2688
2689     IPC::DataReference dataReference;
2690 #if PLATFORM(COCOA)
2691     if (data)
2692         dataReference = IPC::DataReference(CFDataGetBytePtr(data.get()), CFDataGetLength(data.get()));
2693 #endif
2694     send(Messages::WebPageProxy::DataCallback(dataReference, callbackID));
2695 }
2696
2697 void WebPage::getSelectionOrContentsAsString(uint64_t callbackID)
2698 {
2699     String resultString = m_mainFrame->selectionAsString();
2700     if (resultString.isEmpty())
2701         resultString = m_mainFrame->contentsAsString();
2702     send(Messages::WebPageProxy::StringCallback(resultString, callbackID));
2703 }
2704
2705 void WebPage::getSourceForFrame(uint64_t frameID, uint64_t callbackID)
2706 {
2707     String resultString;
2708     if (WebFrame* frame = WebProcess::singleton().webFrame(frameID))
2709        resultString = frame->source();
2710
2711     send(Messages::WebPageProxy::StringCallback(resultString, callbackID));
2712 }
2713
2714 void WebPage::getMainResourceDataOfFrame(uint64_t frameID, uint64_t callbackID)
2715 {
2716     RefPtr<SharedBuffer> buffer;
2717     if (WebFrame* frame = WebProcess::singleton().webFrame(frameID)) {
2718         if (PluginView* pluginView = pluginViewForFrame(frame->coreFrame()))
2719             buffer = pluginView->liveResourceData();
2720         if (!buffer) {
2721             if (DocumentLoader* loader = frame->coreFrame()->loader().documentLoader())
2722                 buffer = loader->mainResourceData();
2723         }
2724     }
2725
2726     // FIXME: Use SharedBufferDataReference.
2727     IPC::DataReference dataReference;
2728     if (buffer)
2729         dataReference = IPC::DataReference(reinterpret_cast<const uint8_t*>(buffer->data()), buffer->size());
2730     send(Messages::WebPageProxy::DataCallback(dataReference, callbackID));
2731 }
2732
2733 static RefPtr<SharedBuffer> resourceDataForFrame(Frame* frame, const URL& resourceURL)
2734 {
2735     DocumentLoader* loader = frame->loader().documentLoader();
2736     if (!loader)
2737         return nullptr;
2738
2739     RefPtr<ArchiveResource> subresource = loader->subresource(resourceURL);
2740     if (!subresource)
2741         return nullptr;
2742
2743     return &subresource->data();
2744 }
2745
2746 void WebPage::getResourceDataFromFrame(uint64_t frameID, const String& resourceURLString, uint64_t callbackID)
2747 {
2748     RefPtr<SharedBuffer> buffer;
2749     if (WebFrame* frame = WebProcess::singleton().webFrame(frameID)) {
2750         URL resourceURL(URL(), resourceURLString);
2751         buffer = resourceDataForFrame(frame->coreFrame(), resourceURL);
2752         if (!buffer) {
2753             // Try to get the resource data from the cache.
2754             buffer = cachedResponseDataForURL(resourceURL);
2755         }
2756     }
2757
2758     // FIXME: Use SharedBufferDataReference.
2759     IPC::DataReference dataReference;
2760     if (buffer)
2761         dataReference = IPC::DataReference(reinterpret_cast<const uint8_t*>(buffer->data()), buffer->size());
2762     send(Messages::WebPageProxy::DataCallback(dataReference, callbackID));
2763 }
2764
2765 void WebPage::getWebArchiveOfFrame(uint64_t frameID, uint64_t callbackID)
2766 {
2767 #if PLATFORM(COCOA)
2768     RetainPtr<CFDataRef> data;
2769     if (WebFrame* frame = WebProcess::singleton().webFrame(frameID))
2770         data = frame->webArchiveData(nullptr, nullptr);
2771 #else
2772     UNUSED_PARAM(frameID);
2773 #endif
2774
2775     IPC::DataReference dataReference;
2776 #if PLATFORM(COCOA)
2777     if (data)
2778         dataReference = IPC::DataReference(CFDataGetBytePtr(data.get()), CFDataGetLength(data.get()));
2779 #endif
2780     send(Messages::WebPageProxy::DataCallback(dataReference, callbackID));
2781 }
2782
2783 void WebPage::forceRepaintWithoutCallback()
2784 {
2785     m_drawingArea->forceRepaint();
2786 }
2787
2788 void WebPage::forceRepaint(uint64_t callbackID)
2789 {
2790     if (m_drawingArea->forceRepaintAsync(callbackID))
2791         return;
2792
2793     forceRepaintWithoutCallback();
2794     send(Messages::WebPageProxy::VoidCallback(callbackID));
2795 }
2796
2797 void WebPage::preferencesDidChange(const WebPreferencesStore& store)
2798 {
2799     WebPreferencesStore::removeTestRunnerOverrides();
2800     updatePreferences(store);
2801 }
2802
2803 void WebPage::updatePreferences(const WebPreferencesStore& store)
2804 {
2805     Settings& settings = m_page->settings();
2806
2807     m_tabToLinks = store.getBoolValueForKey(WebPreferencesKey::tabsToLinksKey());
2808     m_asynchronousPluginInitializationEnabled = store.getBoolValueForKey(WebPreferencesKey::asynchronousPluginInitializationEnabledKey());
2809     m_asynchronousPluginInitializationEnabledForAllPlugins = store.getBoolValueForKey(WebPreferencesKey::asynchronousPluginInitializationEnabledForAllPluginsKey());
2810     m_artificialPluginInitializationDelayEnabled = store.getBoolValueForKey(WebPreferencesKey::artificialPluginInitializationDelayEnabledKey());
2811
2812     m_scrollingPerformanceLoggingEnabled = store.getBoolValueForKey(WebPreferencesKey::scrollingPerformanceLoggingEnabledKey());
2813
2814 #if PLATFORM(COCOA)
2815     m_pdfPluginEnabled = store.getBoolValueForKey(WebPreferencesKey::pdfPluginEnabledKey());
2816 #endif
2817
2818     // FIXME: This should be generated from macro expansion for all preferences,
2819     // but we currently don't match the naming of WebCore exactly so we are
2820     // handrolling the boolean and integer preferences until that is fixed.
2821
2822 #define INITIALIZE_SETTINGS(KeyUpper, KeyLower, TypeName, Type, DefaultValue) settings.set##KeyUpper(store.get##TypeName##ValueForKey(WebPreferencesKey::KeyLower##Key()));
2823
2824     FOR_EACH_WEBKIT_STRING_PREFERENCE(INITIALIZE_SETTINGS)
2825
2826 #undef INITIALIZE_SETTINGS
2827
2828     settings.setScriptEnabled(store.getBoolValueForKey(WebPreferencesKey::javaScriptEnabledKey()));
2829     settings.setScriptMarkupEnabled(store.getBoolValueForKey(WebPreferencesKey::javaScriptMarkupEnabledKey()));
2830     settings.setLoadsImagesAutomatically(store.getBoolValueForKey(WebPreferencesKey::loadsImagesAutomaticallyKey()));
2831     settings.setLoadsSiteIconsIgnoringImageLoadingSetting(store.getBoolValueForKey(WebPreferencesKey::loadsSiteIconsIgnoringImageLoadingPreferenceKey()));
2832     settings.setPluginsEnabled(store.getBoolValueForKey(WebPreferencesKey::pluginsEnabledKey()));
2833     settings.setJavaEnabled(store.getBoolValueForKey(WebPreferencesKey::javaEnabledKey()));
2834     settings.setJavaEnabledForLocalFiles(store.getBoolValueForKey(WebPreferencesKey::javaEnabledForLocalFilesKey()));
2835     settings.setOfflineWebApplicationCacheEnabled(store.getBoolValueForKey(WebPreferencesKey::offlineWebApplicationCacheEnabledKey()));
2836     settings.setLocalStorageEnabled(store.getBoolValueForKey(WebPreferencesKey::localStorageEnabledKey()));
2837     settings.setXSSAuditorEnabled(store.getBoolValueForKey(WebPreferencesKey::xssAuditorEnabledKey()));
2838     settings.setFrameFlatteningEnabled(store.getBoolValueForKey(WebPreferencesKey::frameFlatteningEnabledKey()));
2839     if (store.getBoolValueForKey(WebPreferencesKey::privateBrowsingEnabledKey()) && !usesEphemeralSession())
2840         setSessionID(SessionID::legacyPrivateSessionID());
2841     else if (!store.getBoolValueForKey(WebPreferencesKey::privateBrowsingEnabledKey()) && sessionID() == SessionID::legacyPrivateSessionID())
2842         setSessionID(SessionID::defaultSessionID());
2843     settings.setDeveloperExtrasEnabled(store.getBoolValueForKey(WebPreferencesKey::developerExtrasEnabledKey()));
2844     settings.setJavaScriptRuntimeFlags(RuntimeFlags(store.getUInt32ValueForKey(WebPreferencesKey::javaScriptRuntimeFlagsKey())));
2845     settings.setTextAreasAreResizable(store.getBoolValueForKey(WebPreferencesKey::textAreasAreResizableKey()));
2846     settings.setNeedsSiteSpecificQuirks(store.getBoolValueForKey(WebPreferencesKey::needsSiteSpecificQuirksKey()));
2847     settings.setJavaScriptCanOpenWindowsAutomatically(store.getBoolValueForKey(WebPreferencesKey::javaScriptCanOpenWindowsAutomaticallyKey()));
2848     settings.setForceFTPDirectoryListings(store.getBoolValueForKey(WebPreferencesKey::forceFTPDirectoryListingsKey()));
2849     settings.setDNSPrefetchingEnabled(store.getBoolValueForKey(WebPreferencesKey::dnsPrefetchingEnabledKey()));
2850     settings.setDOMTimersThrottlingEnabled(store.getBoolValueForKey(WebPreferencesKey::domTimersThrottlingEnabledKey()));
2851 #if ENABLE(WEB_ARCHIVE)
2852     settings.setWebArchiveDebugModeEnabled(store.getBoolValueForKey(WebPreferencesKey::webArchiveDebugModeEnabledKey()));
2853 #endif
2854     settings.setLocalFileContentSniffingEnabled(store.getBoolValueForKey(WebPreferencesKey::localFileContentSniffingEnabledKey()));
2855     settings.setUsesPageCache(store.getBoolValueForKey(WebPreferencesKey::usesPageCacheKey()));
2856     settings.setPageCacheSupportsPlugins(store.getBoolValueForKey(WebPreferencesKey::pageCacheSupportsPluginsKey()));
2857     settings.setAuthorAndUserStylesEnabled(store.getBoolValueForKey(WebPreferencesKey::authorAndUserStylesEnabledKey()));
2858     settings.setPaginateDuringLayoutEnabled(store.getBoolValueForKey(WebPreferencesKey::paginateDuringLayoutEnabledKey()));
2859     settings.setDOMPasteAllowed(store.getBoolValueForKey(WebPreferencesKey::domPasteAllowedKey()));
2860     settings.setJavaScriptCanAccessClipboard(store.getBoolValueForKey(WebPreferencesKey::javaScriptCanAccessClipboardKey()));
2861     settings.setShouldPrintBackgrounds(store.getBoolValueForKey(WebPreferencesKey::shouldPrintBackgroundsKey()));
2862     settings.setWebSecurityEnabled(store.getBoolValueForKey(WebPreferencesKey::webSecurityEnabledKey()));
2863     settings.setAllowUniversalAccessFromFileURLs(store.getBoolValueForKey(WebPreferencesKey::allowUniversalAccessFromFileURLsKey()));
2864     settings.setAllowFileAccessFromFileURLs(store.getBoolValueForKey(WebPreferencesKey::allowFileAccessFromFileURLsKey()));
2865
2866     settings.setMinimumFontSize(store.getDoubleValueForKey(WebPreferencesKey::minimumFontSizeKey()));
2867     settings.setMinimumLogicalFontSize(store.getDoubleValueForKey(WebPreferencesKey::minimumLogicalFontSizeKey()));
2868     settings.setDefaultFontSize(store.getDoubleValueForKey(WebPreferencesKey::defaultFontSizeKey()));
2869     settings.setDefaultFixedFontSize(store.getDoubleValueForKey(WebPreferencesKey::defaultFixedFontSizeKey()));
2870     settings.setLayoutFallbackWidth(store.getUInt32ValueForKey(WebPreferencesKey::layoutFallbackWidthKey()));
2871     settings.setDeviceWidth(store.getUInt32ValueForKey(WebPreferencesKey::deviceWidthKey()));
2872     settings.setDeviceHeight(store.getUInt32ValueForKey(WebPreferencesKey::deviceHeightKey()));
2873     settings.setEditableLinkBehavior(static_cast<WebCore::EditableLinkBehavior>(store.getUInt32ValueForKey(WebPreferencesKey::editableLinkBehaviorKey())));
2874     settings.setShowsToolTipOverTruncatedText(store.getBoolValueForKey(WebPreferencesKey::showsToolTipOverTruncatedTextKey()));
2875
2876     settings.setAcceleratedCompositingForOverflowScrollEnabled(store.getBoolValueForKey(WebPreferencesKey::acceleratedCompositingForOverflowScrollEnabledKey()));
2877     settings.setAcceleratedCompositingEnabled(store.getBoolValueForKey(WebPreferencesKey::acceleratedCompositingEnabledKey()));
2878     settings.setAcceleratedDrawingEnabled(store.getBoolValueForKey(WebPreferencesKey::acceleratedDrawingEnabledKey()));
2879     settings.setDisplayListDrawingEnabled(store.getBoolValueForKey(WebPreferencesKey::displayListDrawingEnabledKey()));
2880     settings.setCanvasUsesAcceleratedDrawing(store.getBoolValueForKey(WebPreferencesKey::canvasUsesAcceleratedDrawingKey()));
2881     settings.setShowDebugBorders(store.getBoolValueForKey(WebPreferencesKey::compositingBordersVisibleKey()));
2882     settings.setShowRepaintCounter(store.getBoolValueForKey(WebPreferencesKey::compositingRepaintCountersVisibleKey()));
2883     settings.setShowTiledScrollingIndicator(store.getBoolValueForKey(WebPreferencesKey::tiledScrollingIndicatorVisibleKey()));
2884     settings.setVisibleDebugOverlayRegions(store.getUInt32ValueForKey(WebPreferencesKey::visibleDebugOverlayRegionsKey()));
2885     settings.setUseGiantTiles(store.getBoolValueForKey(WebPreferencesKey::useGiantTilesKey()));
2886
2887     settings.setAggressiveTileRetentionEnabled(store.getBoolValueForKey(WebPreferencesKey::aggressiveTileRetentionEnabledKey()));
2888     settings.setTemporaryTileCohortRetentionEnabled(store.getBoolValueForKey(WebPreferencesKey::temporaryTileCohortRetentionEnabledKey()));
2889 #if ENABLE(CSS_ANIMATIONS_LEVEL_2)
2890     RuntimeEnabledFeatures::sharedFeatures().setAnimationTriggersEnabled(store.getBoolValueForKey(WebPreferencesKey::cssAnimationTriggersEnabledKey()));
2891 #endif
2892 #if ENABLE(WEB_ANIMATIONS)
2893     RuntimeEnabledFeatures::sharedFeatures().setWebAnimationsEnabled(store.getBoolValueForKey(WebPreferencesKey::webAnimationsEnabledKey()));
2894 #endif
2895     RuntimeEnabledFeatures::sharedFeatures().setCSSRegionsEnabled(store.getBoolValueForKey(WebPreferencesKey::cssRegionsEnabledKey()));
2896     RuntimeEnabledFeatures::sharedFeatures().setCSSCompositingEnabled(store.getBoolValueForKey(WebPreferencesKey::cssCompositingEnabledKey()));
2897     settings.setWebGLEnabled(store.getBoolValueForKey(WebPreferencesKey::webGLEnabledKey()));
2898     settings.setForceSoftwareWebGLRendering(store.getBoolValueForKey(WebPreferencesKey::forceSoftwareWebGLRenderingKey()));
2899     settings.setAccelerated2dCanvasEnabled(store.getBoolValueForKey(WebPreferencesKey::accelerated2dCanvasEnabledKey()));
2900     bool requiresUserGestureForMedia = store.getBoolValueForKey(WebPreferencesKey::requiresUserGestureForMediaPlaybackKey());
2901     settings.setVideoPlaybackRequiresUserGesture(requiresUserGestureForMedia || store.getBoolValueForKey(WebPreferencesKey::requiresUserGestureForVideoPlaybackKey()));
2902     settings.setAudioPlaybackRequiresUserGesture(requiresUserGestureForMedia || store.getBoolValueForKey(WebPreferencesKey::requiresUserGestureForAudioPlaybackKey()));
2903     settings.setMainContentUserGestureOverrideEnabled(store.getBoolValueForKey(WebPreferencesKey::mainContentUserGestureOverrideEnabledKey()));
2904     settings.setAllowsInlineMediaPlayback(store.getBoolValueForKey(WebPreferencesKey::allowsInlineMediaPlaybackKey()));
2905     settings.setInlineMediaPlaybackRequiresPlaysInlineAttribute(store.getBoolValueForKey(WebPreferencesKey::inlineMediaPlaybackRequiresPlaysInlineAttributeKey()));
2906     settings.setInvisibleAutoplayNotPermitted(store.getBoolValueForKey(WebPreferencesKey::invisibleAutoplayNotPermittedKey()));
2907     settings.setMediaDataLoadsAutomatically(store.getBoolValueForKey(WebPreferencesKey::mediaDataLoadsAutomaticallyKey()));
2908 #if ENABLE(ATTACHMENT_ELEMENT)
2909     settings.setAttachmentElementEnabled(store.getBoolValueForKey(WebPreferencesKey::attachmentElementEnabledKey()));
2910 #endif
2911     settings.setAllowsPictureInPictureMediaPlayback(store.getBoolValueForKey(WebPreferencesKey::allowsPictureInPictureMediaPlaybackKey()));
2912     settings.setMediaControlsScaleWithPageZoom(store.getBoolValueForKey(WebPreferencesKey::mediaControlsScaleWithPageZoomKey()));
2913     settings.setMockScrollbarsEnabled(store.getBoolValueForKey(WebPreferencesKey::mockScrollbarsEnabledKey()));
2914     settings.setHyperlinkAuditingEnabled(store.getBoolValueForKey(WebPreferencesKey::hyperlinkAuditingEnabledKey()));
2915     settings.setRequestAnimationFrameEnabled(store.getBoolValueForKey(WebPreferencesKey::requestAnimationFrameEnabledKey()));
2916 #if ENABLE(SMOOTH_SCROLLING)
2917     settings.setScrollAnimatorEnabled(store.getBoolValueForKey(WebPreferencesKey::scrollAnimatorEnabledKey()));
2918 #endif
2919     settings.setForceUpdateScrollbarsOnMainThreadForPerformanceTesting(store.getBoolValueForKey(WebPreferencesKey::forceUpdateScrollbarsOnMainThreadForPerformanceTestingKey()));
2920     settings.setInteractiveFormValidationEnabled(store.getBoolValueForKey(WebPreferencesKey::interactiveFormValidationEnabledKey()));
2921     settings.setSpatialNavigationEnabled(store.getBoolValueForKey(WebPreferencesKey::spatialNavigationEnabledKey()));
2922
2923     settings.setHttpEquivEnabled(store.getBoolValueForKey(WebPreferencesKey::httpEquivEnabledKey()));
2924
2925     DatabaseManager::singleton().setIsAvailable(store.getBoolValueForKey(WebPreferencesKey::databasesEnabledKey()));
2926
2927 #if ENABLE(FULLSCREEN_API)
2928     settings.setFullScreenEnabled(store.getBoolValueForKey(WebPreferencesKey::fullScreenEnabledKey()));
2929 #endif
2930
2931 #if USE(AVFOUNDATION)
2932     settings.setAVFoundationEnabled(store.getBoolValueForKey(WebPreferencesKey::isAVFoundationEnabledKey()));
2933     settings.setAVFoundationNSURLSessionEnabled(store.getBoolValueForKey(WebPreferencesKey::isAVFoundationNSURLSessionEnabledKey()));
2934 #endif
2935
2936 #if PLATFORM(COCOA)
2937     settings.setQTKitEnabled(store.getBoolValueForKey(WebPreferencesKey::isQTKitEnabledKey()));
2938 #endif
2939
2940 #if PLATFORM(IOS) && HAVE(AVKIT)
2941     settings.setAVKitEnabled(true);
2942 #endif
2943
2944 #if ENABLE(IOS_TEXT_AUTOSIZING)
2945     settings.setMinimumZoomFontSize(store.getDoubleValueForKey(WebPreferencesKey::minimumZoomFontSizeKey()));
2946 #endif
2947
2948 #if ENABLE(WEB_AUDIO)
2949     settings.setWebAudioEnabled(store.getBoolValueForKey(WebPreferencesKey::webAudioEnabledKey()));
2950 #endif
2951
2952 #if ENABLE(MEDIA_STREAM)
2953     settings.setMediaStreamEnabled(store.getBoolValueForKey(WebPreferencesKey::mediaStreamEnabledKey()));
2954 #endif
2955
2956 #if ENABLE(SERVICE_CONTROLS)
2957     settings.setImageControlsEnabled(store.getBoolValueForKey(WebPreferencesKey::imageControlsEnabledKey()));
2958 #endif
2959
2960 #if ENABLE(WIRELESS_PLAYBACK_TARGET)
2961     settings.setAllowsAirPlayForMediaPlayback(store.getBoolValueForKey(WebPreferencesKey::allowsAirPlayForMediaPlaybackKey()));
2962 #endif
2963
2964 #if ENABLE(RESOURCE_USAGE)
2965     settings.setResourceUsageOverlayVisible(store.getBoolValueForKey(WebPreferencesKey::resourceUsageOverlayVisibleKey()));
2966 #endif
2967
2968     settings.setSuppressesIncrementalRendering(store.getBoolValueForKey(WebPreferencesKey::suppressesIncrementalRenderingKey()));
2969     settings.setIncrementalRenderingSuppressionTimeoutInSeconds(store.getDoubleValueForKey(WebPreferencesKey::incrementalRenderingSuppressionTimeoutKey()));
2970     settings.setBackspaceKeyNavigationEnabled(store.getBoolValueForKey(WebPreferencesKey::backspaceKeyNavigationEnabledKey()));
2971     settings.setWantsBalancedSetDefersLoadingBehavior(store.getBoolValueForKey(WebPreferencesKey::wantsBalancedSetDefersLoadingBehaviorKey()));
2972     settings.setCaretBrowsingEnabled(store.getBoolValueForKey(WebPreferencesKey::caretBrowsingEnabledKey()));
2973
2974 #if ENABLE(VIDEO_TRACK)
2975     settings.setShouldDisplaySubtitles(store.getBoolValueForKey(WebPreferencesKey::shouldDisplaySubtitlesKey()));
2976     settings.setShouldDisplayCaptions(store.getBoolValueForKey(WebPreferencesKey::shouldDisplayCaptionsKey()));
2977     settings.setShouldDisplayTextDescriptions(store.getBoolValueForKey(WebPreferencesKey::shouldDisplayTextDescriptionsKey()));
2978 #endif
2979
2980 #if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
2981     settings.setNotificationsEnabled(store.getBoolValueForKey(WebPreferencesKey::notificationsEnabledKey()));
2982 #endif
2983
2984     settings.setShouldRespectImageOrientation(store.getBoolValueForKey(WebPreferencesKey::shouldRespectImageOrientationKey()));
2985     settings.setStorageBlockingPolicy(static_cast<SecurityOrigin::StorageBlockingPolicy>(store.getUInt32ValueForKey(WebPreferencesKey::storageBlockingPolicyKey())));
2986     settings.setCookieEnabled(store.getBoolValueForKey(WebPreferencesKey::cookieEnabledKey()));
2987
2988     settings.setDiagnosticLoggingEnabled(store.getBoolValueForKey(WebPreferencesKey::diagnosticLoggingEnabledKey()));
2989
2990     settings.setScrollingPerformanceLoggingEnabled(m_scrollingPerformanceLoggingEnabled);
2991
2992     settings.setPlugInSnapshottingEnabled(store.getBoolValueForKey(WebPreferencesKey::plugInSnapshottingEnabledKey()));
2993     settings.setSnapshotAllPlugIns(store.getBoolValueForKey(WebPreferencesKey::snapshotAllPlugInsKey()));
2994     settings.setAutostartOriginPlugInSnapshottingEnabled(store.getBoolValueForKey(WebPreferencesKey::autostartOriginPlugInSnapshottingEnabledKey()));
2995     settings.setPrimaryPlugInSnapshotDetectionEnabled(store.getBoolValueForKey(WebPreferencesKey::primaryPlugInSnapshotDetectionEnabledKey()));
2996     settings.setUsesEncodingDetector(store.getBoolValueForKey(WebPreferencesKey::usesEncodingDetectorKey()));
2997
2998 #if ENABLE(TEXT_AUTOSIZING)
2999     settings.setTextAutosizingEnabled(store.getBoolValueForKey(WebPreferencesKey::textAutosizingEnabledKey()));
3000 #endif
3001
3002     settings.setLogsPageMessagesToSystemConsoleEnabled(store.getBoolValueForKey(WebPreferencesKey::logsPageMessagesToSystemConsoleEnabledKey()));
3003     settings.setAsynchronousSpellCheckingEnabled(store.getBoolValueForKey(WebPreferencesKey::asynchronousSpellCheckingEnabledKey()));
3004
3005     settings.setSmartInsertDeleteEnabled(store.getBoolValueForKey(WebPreferencesKey::smartInsertDeleteEnabledKey()));
3006     settings.setSelectTrailingWhitespaceEnabled(store.getBoolValueForKey(WebPreferencesKey::selectTrailingWhitespaceEnabledKey()));
3007     settings.setShowsURLsInToolTips(store.getBoolValueForKey(WebPreferencesKey::showsURLsInToolTipsEnabledKey()));
3008
3009     settings.setHiddenPageDOMTimerThrottlingEnabled(store.getBoolValueForKey(WebPreferencesKey::hiddenPageDOMTimerThrottlingEnabledKey()));
3010     settings.setHiddenPageDOMTimerThrottlingAutoIncreases(store.getBoolValueForKey(WebPreferencesKey::hiddenPageDOMTimerThrottlingAutoIncreasesKey()));
3011
3012     settings.setHiddenPageCSSAnimationSuspensionEnabled(store.getBoolValueForKey(WebPreferencesKey::hiddenPageCSSAnimationSuspensionEnabledKey()));
3013     settings.setLowPowerVideoAudioBufferSizeEnabled(store.getBoolValueForKey(WebPreferencesKey::lowPowerVideoAudioBufferSizeEnabledKey()));
3014     settings.setSimpleLineLayoutEnabled(store.getBoolValueForKey(WebPreferencesKey::simpleLineLayoutEnabledKey()));
3015     settings.setSimpleLineLayoutDebugBordersEnabled(store.getBoolValueForKey(WebPreferencesKey::simpleLineLayoutDebugBordersEnabledKey()));
3016
3017     settings.setNewBlockInsideInlineModelEnabled(store.getBoolValueForKey(WebPreferencesKey::newBlockInsideInlineModelEnabledKey()));
3018
3019     settings.setSubpixelCSSOMElementMetricsEnabled(store.getBoolValueForKey(WebPreferencesKey::subpixelCSSOMElementMetricsEnabledKey()));
3020
3021     settings.setUseLegacyTextAlignPositionedElementBehavior(store.getBoolValueForKey(WebPreferencesKey::useLegacyTextAlignPositionedElementBehaviorKey()));
3022
3023 #if ENABLE(MEDIA_SOURCE)
3024     settings.setMediaSourceEnabled(store.getBoolValueForKey(WebPreferencesKey::mediaSourceEnabledKey()));
3025 #endif
3026
3027 #if ENABLE(MEDIA_STREAM)
3028     settings.setMockCaptureDevicesEnabled(store.getBoolValueForKey(WebPreferencesKey::mockCaptureDevicesEnabledKey()));
3029 #endif
3030
3031     settings.setShouldConvertPositionStyleOnCopy(store.getBoolValueForKey(WebPreferencesKey::shouldConvertPositionStyleOnCopyKey()));
3032
3033     settings.setStandalone(store.getBoolValueForKey(WebPreferencesKey::standaloneKey()));
3034     settings.setTelephoneNumberParsingEnabled(store.getBoolValueForKey(WebPreferencesKey::telephoneNumberParsingEnabledKey()));
3035     settings.setAllowMultiElementImplicitSubmission(store.getBoolValueForKey(WebPreferencesKey::allowMultiElementImplicitSubmissionKey()));
3036     settings.setAlwaysUseAcceleratedOverflowScroll(store.getBoolValueForKey(WebPreferencesKey::alwaysUseAcceleratedOverflowScrollKey()));
3037
3038     settings.setPasswordEchoEnabled(store.getBoolValueForKey(WebPreferencesKey::passwordEchoEnabledKey()));
3039     settings.setPasswordEchoDurationInSeconds(store.getDoubleValueForKey(WebPreferencesKey::passwordEchoDurationKey()));
3040
3041     settings.setLayoutInterval(std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::duration<double>(store.getDoubleValueForKey(WebPreferencesKey::layoutIntervalKey()))));
3042     settings.setMaxParseDuration(store.getDoubleValueForKey(WebPreferencesKey::maxParseDurationKey()));
3043
3044     settings.setEnableInheritURIQueryComponent(store.getBoolValueForKey(WebPreferencesKey::enableInheritURIQueryComponentKey()));
3045
3046     settings.setShouldDispatchJavaScriptWindowOnErrorEvents(true);
3047
3048 #if USE(APPLE_INTERNAL_SDK)
3049 #include <WebKitAdditions/WebPagePreferences.cpp>
3050 #endif
3051
3052 #if PLATFORM(IOS)
3053     settings.setUseImageDocumentForSubframePDF(true);
3054 #endif
3055
3056 #if ENABLE(DATA_DETECTION)
3057     settings.setDataDetectorTypes(static_cast<DataDetectorTypes>(store.getUInt32ValueForKey(WebPreferencesKey::dataDetectorTypesKey())));
3058 #endif
3059 #if ENABLE(GAMEPAD)
3060     RuntimeEnabledFeatures::sharedFeatures().setGamepadsEnabled(store.getBoolValueForKey(WebPreferencesKey::gamepadsEnabledKey()));
3061 #endif
3062
3063 #if ENABLE(SERVICE_CONTROLS)
3064     settings.setServiceControlsEnabled(store.getBoolValueForKey(WebPreferencesKey::serviceControlsEnabledKey()));
3065 #endif
3066
3067 #if ENABLE(SHADOW_DOM)
3068     RuntimeEnabledFeatures::sharedFeatures().setShadowDOMEnabled(store.getBoolValueForKey(WebPreferencesKey::shadowDOMEnabledKey()));
3069 #endif
3070
3071 #if ENABLE(CUSTOM_ELEMENTS)
3072     RuntimeEnabledFeatures::sharedFeatures().setCustomElementsEnabled(store.getBoolValueForKey(WebPreferencesKey::customElementsEnabledKey()));
3073 #endif
3074
3075     bool processSuppressionEnabled = store.getBoolValueForKey(WebPreferencesKey::pageVisibilityBasedProcessSuppressionEnabledKey());
3076     if (m_processSuppressionEnabled != processSuppressionEnabled) {
3077         m_processSuppressionEnabled = processSuppressionEnabled;
3078         updateUserActivity();
3079     }
3080
3081     platformPreferencesDidChange(store);
3082
3083     if (m_drawingArea)
3084         m_drawingArea->updatePreferences(store);
3085
3086 #if PLATFORM(IOS)
3087     m_ignoreViewportScalingConstraints = store.getBoolValueForKey(WebPreferencesKey::ignoreViewportScalingConstraintsKey());
3088     m_viewportConfiguration.setCanIgnoreScalingConstraints(m_ignoreViewportScalingConstraints);
3089     m_forceAlwaysUserScalable = store.getBoolValueForKey(WebPreferencesKey::forceAlwaysUserScalableKey());
3090     updateForceAlwaysUserScalable();
3091 #endif
3092 }
3093
3094 #if ENABLE(DATA_DETECTION)
3095 void WebPage::setDataDetectionResults(NSArray *detectionResults)
3096 {
3097     DataDetectionResult dataDetectionResult;
3098     dataDetectionResult.results = detectionResults;
3099     send(Messages::WebPageProxy::SetDataDetectionResult(dataDetectionResult));
3100 }
3101 #endif
3102
3103 #if PLATFORM(COCOA)
3104 void WebPage::willCommitLayerTree(RemoteLayerTreeTransaction& layerTransaction)
3105 {
3106     layerTransaction.setContentsSize(corePage()->mainFrame().view()->contentsSize());
3107     layerTransaction.setScrollOrigin(corePage()->mainFrame().view()->scrollOrigin());
3108     layerTransaction.setPageScaleFactor(corePage()->pageScaleFactor());
3109     layerTransaction.setRenderTreeSize(corePage()->renderTreeSize());
3110     layerTransaction.setPageExtendedBackgroundColor(corePage()->pageExtendedBackgroundColor());
3111 #if PLATFORM(IOS)
3112     layerTransaction.setScaleWasSetByUIProcess(scaleWasSetByUIProcess());
3113     layerTransaction.setMinimumScaleFactor(m_viewportConfiguration.minimumScale());
3114     layerTransaction.setMaximumScaleFactor(m_viewportConfiguration.maximumScale());
3115     layerTransaction.setInitialScaleFactor(m_viewportConfiguration.initialScale());
3116     layerTransaction.setViewportMetaTagWidth(m_viewportConfiguration.viewportArguments().width);
3117     layerTransaction.setViewportMetaTagWidthWasExplicit(m_viewportConfiguration.viewportArguments().widthWasExplicit);
3118     layerTransaction.setViewportMetaTagCameFromImageDocument(m_viewportConfiguration.viewportArguments().type == ViewportArguments::ImageDocument);
3119     layerTransaction.setAllowsUserScaling(allowsUserScaling());
3120 #endif
3121 #if PLATFORM(MAC)
3122     layerTransaction.setScrollPosition(corePage()->mainFrame().view()->scrollPosition());
3123 #endif
3124 }
3125
3126 void WebPage::didFlushLayerTreeAtTime(std::chrono::milliseconds timestamp)
3127 {
3128 #if PLATFORM(IOS)
3129     if (m_oldestNonStableUpdateVisibleContentRectsTimestamp != std::chrono::milliseconds::zero()) {
3130         std::chrono::milliseconds elapsed = timestamp - m_oldestNonStableUpdateVisibleContentRectsTimestamp;
3131         m_oldestNonStableUpdateVisibleContentRectsTimestamp = std::chrono::milliseconds::zero();
3132
3133         m_estimatedLatency = std::chrono::milliseconds(static_cast<std::chrono::milliseconds::rep>(m_estimatedLatency.count() * 0.80 + elapsed.count() * 0.20));
3134     }
3135 #else
3136     UNUSED_PARAM(timestamp);
3137 #endif
3138 }
3139 #endif
3140
3141 WebInspector* WebPage::inspector(LazyCreationPolicy behavior)
3142 {
3143     if (m_isClosed)
3144         return nullptr;
3145     if (!m_inspector && behavior == LazyCreationPolicy::CreateIfNeeded)
3146         m_inspector = WebInspector::create(this);
3147     return m_inspector.get();
3148 }
3149
3150 WebInspectorUI* WebPage::inspectorUI()
3151 {
3152     if (m_isClosed)
3153         return nullptr;
3154     if (!m_inspectorUI)
3155         m_inspectorUI = WebInspectorUI::create(*this);
3156     return m_inspectorUI.get();
3157 }
3158
3159 #if PLATFORM(IOS) || (PLATFORM(MAC) && ENABLE(VIDEO_PRESENTATION_MODE))
3160 WebVideoFullscreenManager* WebPage::videoFullscreenManager()
3161 {
3162     if (!m_videoFullscreenManager)
3163         m_videoFullscreenManager = WebVideoFullscreenManager::create(this);
3164     return m_videoFullscreenManager.get();
3165 }
3166 #endif
3167
3168 #if PLATFORM(IOS)
3169 void WebPage::setAllowsMediaDocumentInlinePlayback(bool allows)
3170 {
3171     m_page->setAllowsMediaDocumentInlinePlayback(allows);
3172 }
3173 #endif
3174
3175 #if ENABLE(FULLSCREEN_API)
3176 WebFullScreenManager* WebPage::fullScreenManager()
3177 {
3178     if (!m_fullScreenManager)
3179         m_fullScreenManager = WebFullScreenManager::create(this);
3180     return m_fullScreenManager.get();
3181 }
3182 #endif
3183
3184 NotificationPermissionRequestManager* WebPage::notificationPermissionRequestManager()
3185 {
3186     if (m_notificationPermissionRequestManager)
3187         return m_notificationPermissionRequestManager.get();
3188
3189     m_notificationPermissionRequestManager = NotificationPermissionRequestManager::create(this);
3190     return m_notificationPermissionRequestManager.get();
3191 }
3192
3193 #if !PLATFORM(GTK) && !PLATFORM(COCOA)
3194 bool WebPage::handleEditingKeyboardEvent(KeyboardEvent* evt)
3195 {
3196     Node* node = evt->target()->toNode();
3197     ASSERT(node);
3198     Frame* frame = node->document().frame();
3199     ASSERT(frame);
3200
3201     const PlatformKeyboardEvent* keyEvent = evt->keyEvent();
3202     if (!keyEvent)
3203         return false;
3204
3205     Editor::Command command = frame->editor().command(interpretKeyEvent(evt));
3206
3207     if (keyEvent->type() == PlatformEvent::RawKeyDown) {
3208         // WebKit doesn't have enough information about mode to decide how commands that just insert text if executed via Editor should be treated,
3209         // so we leave it upon WebCore to either handle them immediately (e.g. Tab that changes focus) or let a keypress event be generated
3210         // (e.g. Tab that inserts a Tab character, or Enter).
3211         return !command.isTextInsertion() && command.execute(evt);
3212     }
3213
3214     if (command.execute(evt))
3215         return true;
3216
3217     // Don't allow text insertion for nodes that cannot edit.
3218     if (!frame->editor().canEdit())
3219         return false;
3220
3221     // Don't insert null or control characters as they can result in unexpected behaviour
3222     if (evt->charCode() < ' ')
3223         return false;
3224
3225     return frame->editor().insertText(evt->keyEvent()->text(), evt);
3226 }
3227 #endif
3228
3229 #if ENABLE(DRAG_SUPPORT)
3230
3231 #if PLATFORM(GTK)
3232 void WebPage::performDragControllerAction(uint64_t action, WebCore::DragData dragData)
3233 {
3234     if (!m_page) {
3235         send(Messages::WebPageProxy::DidPerformDragControllerAction(DragOperationNone, false, 0));
3236         DataObjectGtk* data = const_cast<DataObjectGtk*>(dragData.platformData());
3237         data->deref();
3238         return;
3239     }
3240
3241     switch (action) {
3242     case DragControllerActionEntered: {
3243         DragOperation resolvedDragOperation = m_page->dragController().dragEntered(dragData);
3244         send(Messages::WebPageProxy::DidPerformDragControllerAction(resolvedDragOperation, m_page->dragController().mouseIsOverFileInput(), m_page->dragController().numberOfItemsToBeAccepted()));
3245         break;
3246     }
3247     case DragControllerActionUpdated: {
3248         DragOperation resolvedDragOperation = m_page->dragController().dragEntered(dragData);
3249         send(Messages::WebPageProxy::DidPerformDragControllerAction(resolvedDragOperation, m_page->dragController().mouseIsOverFileInput(), m_page->dragController().numberOfItemsToBeAccepted()));
3250         break;
3251     }
3252     case DragControllerActionExited:
3253         m_page->dragController().dragExited(dragData);
3254         break;
3255
3256     case DragControllerActionPerformDragOperation: {
3257         m_page->dragController().performDragOperation(dragData);
3258         break;
3259     }
3260
3261     default:
3262         ASSERT_NOT_REACHED();
3263     }
3264     // DragData does not delete its platformData so we need to do that here.
3265     DataObjectGtk* data = const_cast<DataObjectGtk*>(dragData.platformData());
3266     data->deref();
3267 }
3268
3269 #else
3270 void WebPage::performDragControllerAction(uint64_t action, WebCore::IntPoint clientPosition, WebCore::IntPoint globalPosition, uint64_t draggingSourceOperationMask, const String& dragStorageName, uint32_t flags, const SandboxExtension::Handle& sandboxExtensionHandle, const SandboxExtension::HandleArray& sandboxExtensionsHandleArray)
3271 {
3272     if (!m_page) {
3273         send(Messages::WebPageProxy::DidPerformDragControllerAction(DragOperationNone, false, 0));
3274         return;
3275     }
3276
3277     DragData dragData(dragStorageName, clientPosition, globalPosition, static_cast<DragOperation>(draggingSourceOperationMask), static_cast<DragApplicationFlags>(flags));
3278     switch (action) {
3279     case DragControllerActionEntered: {
3280         DragOperation resolvedDragOperation = m_page->dragController().dragEntered(dragData);
3281         send(Messages::WebPageProxy::DidPerformDragControllerAction(resolvedDragOperation, m_page->dragController().mouseIsOverFileInput(), m_page->dragController().numberOfItemsToBeAccepted()));
3282         break;
3283
3284     }
3285     case DragControllerActionUpdated: {
3286         DragOperation resolvedDragOperation = m_page->dragController().dragUpdated(dragData);
3287         send(Messages::WebPageProxy::DidPerformDragControllerAction(resolvedDragOperation, m_page->dragController().mouseIsOverFileInput(), m_page->dragController().numberOfItemsToBeAccepted()));
3288         break;
3289     }
3290     case DragControllerActionExited:
3291         m_page->dragController().dragExited(dragData);
3292         break;
3293
3294     case DragControllerActionPerformDragOperation: {
3295         ASSERT(!m_pendingDropSandboxExtension);
3296
3297         m_pendingDropSandboxExtension = SandboxExtension::create(sandboxExtensionHandle);
3298         for (size_t i = 0; i < sandboxExtensionsHandleArray.size(); i++) {
3299             if (RefPtr<SandboxExtension> extension = SandboxExtension::create(sandboxExtensionsHandleArray[i]))
3300                 m_pendingDropExtensionsForFileUpload.append(extension);
3301         }
3302
3303         m_page->dragController().performDragOperation(dragData);
3304
3305         // If we started loading a local file, the sandbox extension tracker would have adopted this
3306         // pending drop sandbox extension. If not, we'll play it safe and clear it.
3307         m_pendingDropSandboxExtension = nullptr;
3308
3309         m_pendingDropExtensionsForFileUpload.clear();
3310         break;
3311     }
3312
3313     default:
3314         ASSERT_NOT_REACHED();
3315     }
3316 }
3317 #endif
3318
3319 void WebPage::dragEnded(WebCore::IntPoint clientPosition, WebCore::IntPoint globalPosition, uint64_t operation)
3320 {
3321     IntPoint adjustedClientPosition(clientPosition.x() + m_page->dragController().dragOffset().x(), clientPosition.y() + m_page->dragController().dragOffset().y());
3322     IntPoint adjustedGlobalPosition(globalPosition.x() + m_page->dragController().dragOffset().x(), globalPosition.y() + m_page->dragController().dragOffset().y());
3323
3324     m_page->dragController().dragEnded();
3325     FrameView* view = m_page->mainFrame().view();
3326     if (!view)
3327         return;
3328     // FIXME: These are fake modifier keys here, but they should be real ones instead.
3329     PlatformMouseEvent event(adjustedClientPosition, adjustedGlobalPosition, LeftButton, PlatformEvent::MouseMoved, 0, false, false, false, false, currentTime(), 0);
3330     m_page->mainFrame().eventHandler().dragSourceEndedAt(event, (DragOperation)operation);
3331 }
3332
3333 void WebPage::willPerformLoadDragDestinationAction()
3334 {
3335     m_sandboxExtensionTracker.willPerformLoadDragDestinationAction(m_pendingDropSandboxExtension.release());
3336 }
3337
3338 void WebPage::mayPerformUploadDragDestinationAction()
3339 {
3340     for (size_t i = 0; i < m_pendingDropExtensionsForFileUpload.size(); i++)
3341         m_pendingDropExtensionsForFileUpload[i]->consumePermanently();
3342     m_pendingDropExtensionsForFileUpload.clear();
3343 }
3344
3345 #endif // ENABLE(DRAG_SUPPORT)
3346
3347 WebUndoStep* WebPage::webUndoStep(uint64_t stepID)
3348 {
3349     return m_undoStepMap.get(stepID);
3350 }
3351
3352 void WebPage::addWebUndoStep(uint64_t stepID, WebUndoStep* entry)
3353 {
3354     m_undoStepMap.set(stepID, entry);
3355 }
3356
3357 void WebPage::removeWebEditCommand(uint64_t stepID)
3358 {
3359     m_undoStepMap.remove(stepID);
3360 }
3361
3362 void WebPage::unapplyEditCommand(uint64_t stepID)
3363 {
3364     WebUndoStep* step = webUndoStep(stepID);
3365     if (!step)
3366         return;
3367
3368     step->step()->unapply();
3369 }
3370
3371 void WebPage::reapplyEditCommand(uint64_t stepID)
3372 {
3373     WebUndoStep* step = webUndoStep(stepID);
3374     if (!step)
3375         return;
3376
3377     m_isInRedo = true;
3378     step->step()->reapply();
3379     m_isInRedo = false;
3380 }
3381
3382 void WebPage::didRemoveEditCommand(uint64_t commandID)
3383 {
3384     removeWebEditCommand(commandID);
3385 }
3386
3387 void WebPage::setActivePopupMenu(WebPopupMenu* menu)
3388 {
3389     m_activePopupMenu = menu;
3390 }
3391
3392 #if ENABLE(INPUT_TYPE_COLOR)
3393 void WebPage::setActiveColorChooser(WebColorChooser* colorChooser)
3394 {
3395     m_activeColorChooser = colorChooser;
3396 }
3397
3398 void WebPage::didEndColorPicker()
3399 {
3400     m_activeColorChooser->didEndChooser();
3401 }
3402
3403 void WebPage::didChooseColor(const WebCore::Color& color)
3404 {
3405     m_activeColorChooser->didChooseColor(color);
3406 }
3407 #endif
3408
3409 void WebPage::setActiveOpenPanelResultListener(PassRefPtr<WebOpenPanelResultListener> openPanelResultListener)
3410 {
3411     m_activeOpenPanelResultListener = openPanelResultListener;
3412 }
3413
3414 bool WebPage::findStringFromInjectedBundle(const String& target, FindOptions options)
3415 {
3416     return m_page->findString(target, options);
3417 }
3418
3419 void WebPage::findString(const String& string, uint32_t options, uint32_t maxMatchCount)
3420 {
3421     m_findController.findString(string, static_cast<FindOptions>(options), maxMatchCount);
3422 }
3423
3424 void WebPage::findStringMatches(const String& string, uint32_t options, uint32_t maxMatchCount)
3425 {
3426     m_findController.findStringMatches(string, static_cast<FindOptions>(options), maxMatchCount);
3427 }
3428
3429 void WebPage::getImageForFindMatch(uint32_t matchIndex)
3430 {
3431     m_findController.getImageForFindMatch(matchIndex);
3432 }
3433
3434 void WebPage::selectFindMatch(uint32_t matchIndex)
3435 {
3436     m_findController.selectFindMatch(matchIndex);
3437 }
3438
3439 void WebPage::hideFindUI()
3440 {
3441     m_findController.hideFindUI();
3442 }
3443
3444 void WebPage::countStringMatches(const String& string, uint32_t options, uint32_t maxMatchCount)
3445 {
3446     m_findController.countStringMatches(string, static_cast<FindOptions>(options), maxMatchCount);
3447 }
3448
3449 void WebPage::didChangeSelectedIndexForActivePopupMenu(int32_t newIndex)
3450 {
3451     changeSelectedIndex(newIndex);
3452     m_activePopupMenu = nullptr;
3453 }
3454
3455 void WebPage::changeSelectedIndex(int32_t index)
3456 {
3457     if (!m_activePopupMenu)
3458         return;
3459
3460     m_activePopupMenu->didChangeSelectedIndex(index);
3461 }
3462
3463 #if PLATFORM(IOS)
3464 void WebPage::didChooseFilesForOpenPanelWithDisplayStringAndIcon(const Vector<String>& files, const String& displayString, const IPC::DataReference& iconData)
3465 {
3466     if (!m_activeOpenPanelResultListener)
3467         return;
3468
3469     RefPtr<Icon> icon;
3470     if (!iconData.isEmpty()) {
3471         RetainPtr<CFDataRef> dataRef = adoptCF(CFDataCreate(nullptr, iconData.data(), iconData.size()));
3472         RetainPtr<CGDataProviderRef> imageProviderRef = adoptCF(CGDataProviderCreateWithCFData(dataRef.get()));
3473         RetainPtr<CGImageRef> imageRef = adoptCF(CGImageCreateWithJPEGDataProvider(imageProviderRef.get(), nullptr, true, kCGRenderingIntentDefault));
3474         icon = Icon::createIconForImage(imageRef.get());
3475     }
3476
3477     m_activeOpenPanelResultListener->didChooseFilesWithDisplayStringAndIcon(files, displayString, icon.get());
3478     m_activeOpenPanelResultListener = nullptr;
3479 }
3480 #endif
3481
3482 void WebPage::didChooseFilesForOpenPanel(const Vector<String>& files)
3483 {
3484     if (!m_activeOpenPanelResultListener)
3485         return;
3486
3487     m_activeOpenPanelResultListener->didChooseFiles(files);
3488     m_activeOpenPanelResultListener = nullptr;
3489 }
3490
3491 void WebPage::didCancelForOpenPanel()
3492 {
3493     m_activeOpenPanelResultListener = nullptr;
3494 }
3495
3496 #if ENABLE(SANDBOX_EXTENSIONS)
3497 void WebPage::extendSandboxForFileFromOpenPanel(const SandboxExtension::Handle& handle)
3498 {
3499     bool result = SandboxExtension::consumePermanently(handle);
3500     if (!result) {
3501         // We have reports of cases where this fails for some unknown reason, <rdar://problem/10156710>.
3502         WTFLogAlways("WebPage::extendSandboxForFileFromOpenPanel(): Could not consume a sandbox extension");
3503     }
3504 }
3505 #endif
3506
3507 #if ENABLE(GEOLOCATION)
3508 void WebPage::didReceiveGeolocationPermissionDecision(uint64_t geolocationID, bool allowed)
3509 {
3510     m_geolocationPermissionRequestManager.didReceiveGeolocationPermissionDecision(geolocationID, allowed);
3511 }
3512 #endif
3513
3514 void WebPage::didReceiveNotificationPermissionDecision(uint64_t notificationID, bool allowed)
3515 {
3516     notificationPermissionRequestManager()->didReceiveNotificationPermissionDecision(notificationID, allowed);
3517 }
3518
3519 #if ENABLE(MEDIA_STREAM)
3520 void WebPage::didReceiveUserMediaPermissionDecision(uint64_t userMediaID, bool allowed, const String& audioDeviceUID, const String& videoDeviceUID)
3521 {
3522     m_userMediaPermissionRequestManager.didReceiveUserMediaPermissionDecision(userMediaID, allowed, audioDeviceUID, videoDeviceUID);
3523 }
3524
3525 void WebPage::didCompleteUserMediaPermissionCheck(uint64_t userMediaID, const String& mediaDeviceIdentifierHashSalt, bool allowed)
3526 {
3527     m_userMediaPermissionRequestManager.didCompleteUserMediaPermissionCheck(userMediaID, mediaDeviceIdentifierHashSalt, allowed);
3528 }