Source/WebKit/WebProcess/WebPage/WebPage.h

   1 /*
   2  * Copyright (C) 2010-2019 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  23  * THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #pragma once
  27
  28 #include "APIInjectedBundleEditorClient.h"
  29 #include "APIInjectedBundleFormClient.h"
  30 #include "APIInjectedBundlePageContextMenuClient.h"
  31 #include "APIInjectedBundlePageLoaderClient.h"
  32 #include "APIInjectedBundlePageResourceLoadClient.h"
  33 #include "APIInjectedBundlePageUIClient.h"
  34 #include "APIObject.h"
  35 #include "CallbackID.h"
  36 #include "DrawingAreaInfo.h"
  37 #include "EditingRange.h"
  38 #include "FocusedElementInformation.h"
  39 #include "InjectedBundlePageContextMenuClient.h"
  40 #include "InjectedBundlePageFullScreenClient.h"
  41 #include "InjectedBundlePagePolicyClient.h"
  42 #include "LayerTreeContext.h"
  43 #include "MessageReceiver.h"
  44 #include "MessageSender.h"
  45 #include "OptionalCallbackID.h"
  46 #include "Plugin.h"
  47 #include "SandboxExtension.h"
  48 #include "ShareSheetCallbackID.h"
  49 #include "SharedMemory.h"
  50 #include "StorageNamespaceIdentifier.h"
  51 #include "TransactionID.h"
  52 #include "UserData.h"
  53 #include "WebBackForwardListProxy.h"
  54 #include "WebPageMessagesReplies.h"
  55 #include "WebURLSchemeHandler.h"
  56 #include "WebUndoStepID.h"
  57 #include "WebUserContentController.h"
  58 #include "WebsitePoliciesData.h"
  59 #include <JavaScriptCore/InspectorFrontendChannel.h>
  60 #include <WebCore/ActivityState.h>
  61 #include <WebCore/DictionaryPopupInfo.h>
  62 #include <WebCore/DisabledAdaptations.h>
  63 #include <WebCore/DragActions.h>
  64 #include <WebCore/FrameLoaderTypes.h>
  65 #include <WebCore/HTMLMenuElement.h>
  66 #include <WebCore/HTMLMenuItemElement.h>
  67 #include <WebCore/IntRect.h>
  68 #include <WebCore/IntSizeHash.h>
  69 #include <WebCore/Page.h>
  70 #include <WebCore/PageIdentifier.h>
  71 #include <WebCore/PageOverlay.h>
  72 #include <WebCore/PluginData.h>
  73 #include <WebCore/PointerID.h>
  74 #include <WebCore/SecurityPolicyViolationEvent.h>
  75 #include <WebCore/ShareData.h>
  76 #include <WebCore/TextManipulationController.h>
  77 #include <WebCore/UserActivity.h>
  78 #include <WebCore/UserContentTypes.h>
  79 #include <WebCore/UserInterfaceLayoutDirection.h>
  80 #include <WebCore/UserScriptTypes.h>
  81 #include <WebCore/VisibilityState.h>
  82 #include <WebCore/WebCoreKeyboardUIMode.h>
  83 #include <memory>
  84 #include <pal/HysteresisActivity.h>
  85 #include <wtf/HashMap.h>
  86 #include <wtf/MonotonicTime.h>
  87 #include <wtf/RefPtr.h>
  88 #include <wtf/RunLoop.h>
  89 #include <wtf/Seconds.h>
  90 #include <wtf/WallTime.h>
  91 #include <wtf/text/WTFString.h>
  92
  93 #if ENABLE(ACCESSIBILITY) && USE(ATK)
  94 typedef struct _AtkObject AtkObject;
  95 #include <wtf/glib/GRefPtr.h>
  96 #endif
  97
  98 #if PLATFORM(GTK)
  99 #include "ArgumentCodersGtk.h"
 100 #include "WebPrintOperationGtk.h"
 101 #endif
 102
 103 #if PLATFORM(IOS_FAMILY)
 104 #include "GestureTypes.h"
 105 #include <WebCore/IntPointHash.h>
 106 #include <WebCore/ViewportConfiguration.h>
 107 #include <WebCore/WKContentObservation.h>
 108 #endif
 109
 110 #if ENABLE(APPLICATION_MANIFEST)
 111 #include <WebCore/ApplicationManifest.h>
 112 #endif
 113
 114 #if ENABLE(IOS_TOUCH_EVENTS)
 115 #include <WebKitAdditions/PlatformTouchEventIOS.h>
 116 #elif ENABLE(TOUCH_EVENTS)
 117 #include <WebCore/PlatformTouchEvent.h>
 118 #endif
 119
 120 #if ENABLE(DATA_DETECTION)
 121 #include <WebCore/DataDetection.h>
 122 #endif
 123
 124 #if ENABLE(MAC_GESTURE_EVENTS)
 125 #include <WebKitAdditions/PlatformGestureEventMac.h>
 126 #endif
 127
 128 #if PLATFORM(COCOA)
 129 #include "DynamicViewportSizeUpdate.h"
 130 #include <WebCore/VisibleSelection.h>
 131 #include <wtf/RetainPtr.h>
 132 OBJC_CLASS CALayer;
 133 OBJC_CLASS NSArray;
 134 OBJC_CLASS NSDictionary;
 135 OBJC_CLASS NSObject;
 136 OBJC_CLASS WKAccessibilityWebPageObject;
 137 #endif
 138
 139 #define ENABLE_VIEWPORT_RESIZING PLATFORM(IOS_FAMILY)
 140
 141 namespace API {
 142 class Array;
 143 }
 144
 145 namespace IPC {
 146 class Connection;
 147 class Decoder;
 148 class FormDataReference;
 149 }
 150
 151 namespace WebCore {
 152
 153 class CaptureDevice;
 154 class DocumentLoader;
 155 class DragData;
 156 class FontAttributeChanges;
 157 class FontChanges;
 158 class Frame;
 159 class FrameSelection;
 160 class FrameView;
 161 class GraphicsContext;
 162 class HTMLImageElement;
 163 class HTMLMenuElement;
 164 class HTMLMenuItemElement;
 165 class HTMLPlugInElement;
 166 class HTMLPlugInImageElement;
 167 class IntPoint;
 168 class KeyboardEvent;
 169 class MediaPlaybackTargetContext;
 170 class MediaPlayerRequestInstallMissingPluginsCallback;
 171 class Page;
 172 class PrintContext;
 173 class Range;
 174 class ResourceRequest;
 175 class ResourceResponse;
 176 class SelectionRect;
 177 class SharedBuffer;
 178 class SubstituteData;
 179 class TextCheckingRequest;
 180 class VisiblePosition;
 181
 182 enum SyntheticClickType : int8_t;
 183 enum class DOMPasteAccessResponse : uint8_t;
 184 enum class DragHandlingMethod : uint8_t;
 185 enum class ShouldTreatAsContinuingLoad : bool;
 186 enum class StorageAccessPromptWasShown : bool;
 187 enum class StorageAccessWasGranted : bool;
 188 enum class TextIndicatorPresentationTransition : uint8_t;
 189 enum class WritingDirection : uint8_t;
 190
 191 struct BackForwardItemIdentifier;
 192 struct CompositionUnderline;
 193 struct DictationAlternative;
 194 struct ElementContext;
 195 struct GlobalFrameIdentifier;
 196 struct GlobalWindowIdentifier;
 197 struct Highlight;
 198 struct KeypressCommand;
 199 struct PromisedAttachmentInfo;
 200 struct TextCheckingResult;
 201 struct ViewportArguments;
 202
 203 #if ENABLE(ATTACHMENT_ELEMENT)
 204 class HTMLAttachmentElement;
 205 #endif
 206 }
 207
 208 namespace WebKit {
 209
 210 class DataReference;
 211 class DrawingArea;
 212 class DownloadID;
 213 class FindController;
 214 class GamepadData;
 215 class GeolocationPermissionRequestManager;
 216 class LayerHostingContext;
 217 class MediaDeviceSandboxExtensions;
 218 class NotificationPermissionRequestManager;
 219 class PDFPlugin;
 220 class PageBanner;
 221 class PluginView;
 222 class RemoteWebInspectorUI;
 223 class TextCheckingControllerProxy;
 224 class UserMediaPermissionRequestManager;
 225 class ViewGestureGeometryCollector;
 226 class VisibleContentRectUpdateInfo;
 227 class WebColorChooser;
 228 class WebContextMenu;
 229 class WebContextMenuItemData;
 230 class WebDataListSuggestionPicker;
 231 class WebDocumentLoader;
 232 class WebEvent;
 233 class PlaybackSessionManager;
 234 class VideoFullscreenManager;
 235 class WebFrame;
 236 class WebFullScreenManager;
 237 class WebGestureEvent;
 238 class WebImage;
 239 class WebInspector;
 240 class WebInspectorClient;
 241 class WebInspectorUI;
 242 class WebKeyboardEvent;
 243 class WebMouseEvent;
 244 class WebNotificationClient;
 245 class WebOpenPanelResultListener;
 246 class WebPageGroupProxy;
 247 class WebPageInspectorTargetController;
 248 class WebPageOverlay;
 249 class WebPaymentCoordinator;
 250 class WebPopupMenu;
 251 class WebRemoteObjectRegistry;
 252 class WebTouchEvent;
 253 class WebURLSchemeHandlerProxy;
 254 class WebUndoStep;
 255 class WebUserContentController;
 256 class WebWheelEvent;
 257 class RemoteLayerTreeTransaction;
 258
 259 enum FindOptions : uint16_t;
 260 enum class DragControllerAction : uint8_t;
 261 enum class SyntheticEditingCommandType : uint8_t;
 262
 263 struct AttributedString;
 264 struct BackForwardListItemState;
 265 struct DataDetectionResult;
 266 struct DocumentEditingContext;
 267 struct DocumentEditingContextRequest;
 268 struct EditorState;
 269 struct FontInfo;
 270 struct InsertTextOptions;
 271 struct InteractionInformationAtPosition;
 272 struct InteractionInformationRequest;
 273 struct LoadParameters;
 274 struct PrintInfo;
 275 struct TextInputContext;
 276 struct UserMessage;
 277 struct WebAutocorrectionData;
 278 struct WebAutocorrectionContext;
 279 struct WebPageCreationParameters;
 280 struct WebPreferencesStore;
 281 struct WebSelectionData;
 282 struct WebsitePoliciesData;
 283
 284 using SnapshotOptions = uint32_t;
 285 using WKEventModifiers = uint32_t;
 286
 287 class WebPage : public API::ObjectImpl<API::Object::Type::BundlePage>, public IPC::MessageReceiver, public IPC::MessageSender, public CanMakeWeakPtr<WebPage> {
 288 public:
 289     static Ref<WebPage> create(WebCore::PageIdentifier, WebPageCreationParameters&&);
 290
 291     virtual ~WebPage();
 292
 293     void reinitializeWebPage(WebPageCreationParameters&&);
 294
 295     void close();
 296
 297     static WebPage& fromCorePage(WebCore::Page&);
 298
 299     WebCore::Page* corePage() const { return m_page.get(); }
 300     WebCore::PageIdentifier identifier() const { return m_identifier; }
 301     StorageNamespaceIdentifier sessionStorageNamespaceIdentifier() const { return makeObjectIdentifier<StorageNamespaceIdentifierType>(m_webPageProxyIdentifier.toUInt64()); }
 302     PAL::SessionID sessionID() const;
 303     bool usesEphemeralSession() const;
 304
 305     void setSize(const WebCore::IntSize&);
 306     const WebCore::IntSize& size() const { return m_viewSize; }
 307     WebCore::IntRect bounds() const { return WebCore::IntRect(WebCore::IntPoint(), size()); }
 308
 309     DrawingArea* drawingArea() const { return m_drawingArea.get(); }
 310
 311 #if ENABLE(ASYNC_SCROLLING)
 312     WebCore::ScrollingCoordinator* scrollingCoordinator() const;
 313 #endif
 314
 315     WebPageGroupProxy* pageGroup() const { return m_pageGroup.get(); }
 316
 317     void scrollMainFrameIfNotAtMaxScrollPosition(const WebCore::IntSize& scrollOffset);
 318
 319     bool scrollBy(uint32_t scrollDirection, uint32_t scrollGranularity);
 320
 321     void centerSelectionInVisibleArea();
 322
 323 #if PLATFORM(COCOA)
 324     void willCommitLayerTree(RemoteLayerTreeTransaction&);
 325     void didFlushLayerTreeAtTime(MonotonicTime);
 326 #endif
 327
 328     void layoutIfNeeded();
 329     void updateRendering();
 330
 331     enum class LazyCreationPolicy { UseExistingOnly, CreateIfNeeded };
 332
 333     WebInspector* inspector(LazyCreationPolicy = LazyCreationPolicy::CreateIfNeeded);
 334     WebInspectorUI* inspectorUI();
 335     RemoteWebInspectorUI* remoteInspectorUI();
 336     bool isInspectorPage() { return !!m_inspectorUI || !!m_remoteInspectorUI; }
 337
 338     void inspectorFrontendCountChanged(unsigned);
 339
 340 #if PLATFORM(IOS_FAMILY) || (PLATFORM(MAC) && ENABLE(VIDEO_PRESENTATION_MODE))
 341     PlaybackSessionManager& playbackSessionManager();
 342     VideoFullscreenManager& videoFullscreenManager();
 343     void videoControlsManagerDidChange();
 344 #endif
 345
 346 #if PLATFORM(IOS_FAMILY)
 347     void setAllowsMediaDocumentInlinePlayback(bool);
 348     bool allowsMediaDocumentInlinePlayback() const { return m_allowsMediaDocumentInlinePlayback; }
 349 #endif
 350
 351 #if ENABLE(FULLSCREEN_API)
 352     WebFullScreenManager* fullScreenManager();
 353 #endif
 354
 355     void addConsoleMessage(WebCore::FrameIdentifier, MessageSource, MessageLevel, const String&, uint64_t requestID = 0);
 356     void sendCSPViolationReport(WebCore::FrameIdentifier, const URL& reportURL, IPC::FormDataReference&&);
 357     void enqueueSecurityPolicyViolationEvent(WebCore::FrameIdentifier, WebCore::SecurityPolicyViolationEvent::Init&&);
 358
 359     // -- Called by the DrawingArea.
 360     // FIXME: We could genericize these into a DrawingArea client interface. Would that be beneficial?
 361     void drawRect(WebCore::GraphicsContext&, const WebCore::IntRect&);
 362
 363     // -- Called from WebCore clients.
 364     bool handleEditingKeyboardEvent(WebCore::KeyboardEvent&);
 365
 366     void didStartPageTransition();
 367     void didCompletePageTransition();
 368     void didCommitLoad(WebFrame*);
 369     void willReplaceMultipartContent(const WebFrame&);
 370     void didReplaceMultipartContent(const WebFrame&);
 371     void didFinishDocumentLoad(WebFrame&);
 372     void didFinishLoad(WebFrame&);
 373     void show();
 374     String userAgent(const URL&) const;
 375     String platformUserAgent(const URL&) const;
 376     WebCore::KeyboardUIMode keyboardUIMode();
 377
 378     void didInsertMenuElement(WebCore::HTMLMenuElement&);
 379     void didRemoveMenuElement(WebCore::HTMLMenuElement&);
 380     void didInsertMenuItemElement(WebCore::HTMLMenuItemElement&);
 381     void didRemoveMenuItemElement(WebCore::HTMLMenuItemElement&);
 382
 383     const String& overrideContentSecurityPolicy() const { return m_overrideContentSecurityPolicy; }
 384
 385     WebUndoStep* webUndoStep(WebUndoStepID);
 386     void addWebUndoStep(WebUndoStepID, Ref<WebUndoStep>&&);
 387     void removeWebEditCommand(WebUndoStepID);
 388     bool isInRedo() const { return m_isInRedo; }
 389
 390     bool isAlwaysOnLoggingAllowed() const;
 391     void setActivePopupMenu(WebPopupMenu*);
 392
 393     void setHiddenPageDOMTimerThrottlingIncreaseLimit(Seconds limit)
 394     {
 395         m_page->setDOMTimerAlignmentIntervalIncreaseLimit(limit);
 396     }
 397
 398 #if ENABLE(INPUT_TYPE_COLOR)
 399     WebColorChooser* activeColorChooser() const { return m_activeColorChooser; }
 400     void setActiveColorChooser(WebColorChooser*);
 401     void didChooseColor(const WebCore::Color&);
 402     void didEndColorPicker();
 403 #endif
 404
 405 #if ENABLE(DATALIST_ELEMENT)
 406     void setActiveDataListSuggestionPicker(WebDataListSuggestionPicker*);
 407     void didSelectDataListOption(const String&);
 408     void didCloseSuggestions();
 409 #endif
 410
 411     WebOpenPanelResultListener* activeOpenPanelResultListener() const { return m_activeOpenPanelResultListener.get(); }
 412     void setActiveOpenPanelResultListener(Ref<WebOpenPanelResultListener>&&);
 413
 414     void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
 415     void didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, std::unique_ptr<IPC::Encoder>&) override;
 416
 417     // -- InjectedBundle methods
 418 #if ENABLE(CONTEXT_MENUS)
 419     void setInjectedBundleContextMenuClient(std::unique_ptr<API::InjectedBundle::PageContextMenuClient>&&);
 420 #endif
 421     void setInjectedBundleEditorClient(std::unique_ptr<API::InjectedBundle::EditorClient>&&);
 422     void setInjectedBundleFormClient(std::unique_ptr<API::InjectedBundle::FormClient>&&);
 423     void setInjectedBundlePageLoaderClient(std::unique_ptr<API::InjectedBundle::PageLoaderClient>&&);
 424     void initializeInjectedBundlePolicyClient(WKBundlePagePolicyClientBase*);
 425     void setInjectedBundleResourceLoadClient(std::unique_ptr<API::InjectedBundle::ResourceLoadClient>&&);
 426     void setInjectedBundleUIClient(std::unique_ptr<API::InjectedBundle::PageUIClient>&&);
 427 #if ENABLE(FULLSCREEN_API)
 428     void initializeInjectedBundleFullScreenClient(WKBundlePageFullScreenClientBase*);
 429 #endif
 430
 431 #if ENABLE(CONTEXT_MENUS)
 432     API::InjectedBundle::PageContextMenuClient& injectedBundleContextMenuClient() { return *m_contextMenuClient; }
 433 #endif
 434     API::InjectedBundle::EditorClient& injectedBundleEditorClient() { return *m_editorClient; }
 435     API::InjectedBundle::FormClient& injectedBundleFormClient() { return *m_formClient; }
 436     API::InjectedBundle::PageLoaderClient& injectedBundleLoaderClient() { return *m_loaderClient; }
 437     InjectedBundlePagePolicyClient& injectedBundlePolicyClient() { return m_policyClient; }
 438     API::InjectedBundle::ResourceLoadClient& injectedBundleResourceLoadClient() { return *m_resourceLoadClient; }
 439     API::InjectedBundle::PageUIClient& injectedBundleUIClient() { return *m_uiClient; }
 440 #if ENABLE(FULLSCREEN_API)
 441     InjectedBundlePageFullScreenClient& injectedBundleFullScreenClient() { return m_fullScreenClient; }
 442 #endif
 443
 444     bool findStringFromInjectedBundle(const String&, FindOptions);
 445     void findStringMatchesFromInjectedBundle(const String&, FindOptions);
 446     void replaceStringMatchesFromInjectedBundle(const Vector<uint32_t>& matchIndices, const String& replacementText, bool selectionOnly);
 447
 448     WebFrame* mainWebFrame() const { return m_mainFrame.get(); }
 449
 450     WebCore::Frame* mainFrame() const; // May return nullptr.
 451     WebCore::FrameView* mainFrameView() const; // May return nullptr.
 452
 453     RefPtr<WebCore::Range> currentSelectionAsRange();
 454
 455 #if ENABLE(NETSCAPE_PLUGIN_API)
 456     RefPtr<Plugin> createPlugin(WebFrame*, WebCore::HTMLPlugInElement*, const Plugin::Parameters&, String& newMIMEType);
 457 #endif
 458
 459 #if ENABLE(WEBGL)
 460     WebCore::WebGLLoadPolicy webGLPolicyForURL(WebFrame*, const URL&);
 461     WebCore::WebGLLoadPolicy resolveWebGLPolicyForURL(WebFrame*, const URL&);
 462 #endif
 463
 464     enum class IncludePostLayoutDataHint { No, Yes };
 465     EditorState editorState(IncludePostLayoutDataHint = IncludePostLayoutDataHint::Yes) const;
 466     void updateEditorStateAfterLayoutIfEditabilityChanged();
 467
 468     // options are RenderTreeExternalRepresentationBehavior values.
 469     String renderTreeExternalRepresentation(unsigned options = 0) const;
 470     String renderTreeExternalRepresentationForPrinting() const;
 471     uint64_t renderTreeSize() const;
 472
 473     void setTracksRepaints(bool);
 474     bool isTrackingRepaints() const;
 475     void resetTrackedRepaints();
 476     Ref<API::Array> trackedRepaintRects();
 477
 478     void executeEditingCommand(const String& commandName, const String& argument);
 479     bool isEditingCommandEnabled(const String& commandName);
 480     void clearMainFrameName();
 481     void sendClose();
 482
 483     void suspendForProcessSwap();
 484
 485     void sendSetWindowFrame(const WebCore::FloatRect&);
 486
 487     double textZoomFactor() const;
 488     void setTextZoomFactor(double);
 489     double pageZoomFactor() const;
 490     void setPageZoomFactor(double);
 491     void setPageAndTextZoomFactors(double pageZoomFactor, double textZoomFactor);
 492     void windowScreenDidChange(uint32_t);
 493     String dumpHistoryForTesting(const String& directory);
 494     void clearHistory();
 495
 496     void accessibilitySettingsDidChange();
 497
 498     void scalePage(double scale, const WebCore::IntPoint& origin);
 499     void scalePageInViewCoordinates(double scale, WebCore::IntPoint centerInViewCoordinates);
 500     double pageScaleFactor() const;
 501     double totalScaleFactor() const;
 502     double viewScaleFactor() const;
 503     void scaleView(double scale);
 504
 505     void setUseFixedLayout(bool);
 506     bool useFixedLayout() const { return m_useFixedLayout; }
 507     bool setFixedLayoutSize(const WebCore::IntSize&);
 508     WebCore::IntSize fixedLayoutSize() const;
 509
 510     void listenForLayoutMilestones(OptionSet<WebCore::LayoutMilestone>);
 511
 512     void setSuppressScrollbarAnimations(bool);
 513
 514     void setEnableVerticalRubberBanding(bool);
 515     void setEnableHorizontalRubberBanding(bool);
 516
 517     void setBackgroundExtendsBeyondPage(bool);
 518
 519     void setPaginationMode(uint32_t /* WebCore::Pagination::Mode */);
 520     void setPaginationBehavesLikeColumns(bool);
 521     void setPageLength(double);
 522     void setGapBetweenPages(double);
 523     void setPaginationLineGridEnabled(bool);
 524
 525     void postInjectedBundleMessage(const String& messageName, const UserData&);
 526
 527     void setUnderlayColor(const WebCore::Color& color) { m_underlayColor = color; }
 528     WebCore::Color underlayColor() const { return m_underlayColor; }
 529
 530     void stopLoading();
 531     void stopLoadingFrame(WebCore::FrameIdentifier);
 532     bool defersLoading() const;
 533     void setDefersLoading(bool deferLoading);
 534
 535     void enterAcceleratedCompositingMode(WebCore::GraphicsLayer*);
 536     void exitAcceleratedCompositingMode();
 537
 538     void addPluginView(PluginView*);
 539     void removePluginView(PluginView*);
 540
 541     bool isVisible() const { return m_activityState.contains(WebCore::ActivityState::IsVisible); }
 542     bool isVisibleOrOccluded() const { return m_activityState.contains(WebCore::ActivityState::IsVisibleOrOccluded); }
 543
 544     LayerHostingMode layerHostingMode() const { return m_layerHostingMode; }
 545     void setLayerHostingMode(LayerHostingMode);
 546
 547 #if PLATFORM(COCOA)
 548     void updatePluginsActiveAndFocusedState();
 549     const WebCore::FloatRect& windowFrameInScreenCoordinates() const { return m_windowFrameInScreenCoordinates; }
 550     const WebCore::FloatRect& windowFrameInUnflippedScreenCoordinates() const { return m_windowFrameInUnflippedScreenCoordinates; }
 551     const WebCore::FloatRect& viewFrameInWindowCoordinates() const { return m_viewFrameInWindowCoordinates; }
 552
 553     bool hasCachedWindowFrame() const { return m_hasCachedWindowFrame; }
 554
 555     void updateHeaderAndFooterLayersForDeviceScaleChange(float scaleFactor);
 556 #endif
 557
 558 #if PLATFORM(MAC)
 559     void setTopOverhangImage(WebImage*);
 560     void setBottomOverhangImage(WebImage*);
 561
 562     void setUseSystemAppearance(bool);
 563 #endif
 564
 565     void effectiveAppearanceDidChange(bool useDarkAppearance, bool useElevatedUserInterfaceLevel);
 566
 567     bool windowIsFocused() const;
 568     bool windowAndWebPageAreFocused() const;
 569
 570 #if !PLATFORM(IOS_FAMILY)
 571     void setHeaderPageBanner(PageBanner*);
 572     PageBanner* headerPageBanner();
 573     void setFooterPageBanner(PageBanner*);
 574     PageBanner* footerPageBanner();
 575
 576     void hidePageBanners();
 577     void showPageBanners();
 578
 579     void setHeaderBannerHeightForTesting(int);
 580     void setFooterBannerHeightForTesting(int);
 581 #endif
 582
 583     WebCore::IntPoint screenToRootView(const WebCore::IntPoint&);
 584     WebCore::IntRect rootViewToScreen(const WebCore::IntRect&);
 585     WebCore::IntPoint accessibilityScreenToRootView(const WebCore::IntPoint&);
 586     WebCore::IntRect rootViewToAccessibilityScreen(const WebCore::IntRect&);
 587
 588     RefPtr<WebImage> scaledSnapshotWithOptions(const WebCore::IntRect&, double additionalScaleFactor, SnapshotOptions);
 589
 590     static const WebEvent* currentEvent();
 591
 592     FindController& findController() { return m_findController.get(); }
 593
 594 #if ENABLE(GEOLOCATION)
 595     GeolocationPermissionRequestManager& geolocationPermissionRequestManager() { return m_geolocationPermissionRequestManager.get(); }
 596 #endif
 597
 598 #if PLATFORM(IOS_FAMILY)
 599     void savePageState(WebCore::HistoryItem&);
 600     void restorePageState(const WebCore::HistoryItem&);
 601 #endif
 602
 603 #if ENABLE(MEDIA_STREAM)
 604     UserMediaPermissionRequestManager& userMediaPermissionRequestManager() { return m_userMediaPermissionRequestManager; }
 605     void captureDevicesChanged();
 606 #endif
 607
 608     void elementDidFocus(WebCore::Element&);
 609     void elementDidRefocus(WebCore::Element&);
 610     void elementDidBlur(WebCore::Element&);
 611     void focusedElementDidChangeInputMode(WebCore::Element&, WebCore::InputMode);
 612     void resetFocusedElementForFrame(WebFrame*);
 613     void updateInputContextAfterBlurringAndRefocusingElementIfNeeded(WebCore::Element&);
 614
 615     void disabledAdaptationsDidChange(const OptionSet<WebCore::DisabledAdaptations>&);
 616     void viewportPropertiesDidChange(const WebCore::ViewportArguments&);
 617     void executeEditCommandWithCallback(const String&, const String& argument, CallbackID);
 618     void selectAll();
 619
 620     void textInputContextsInRect(WebCore::FloatRect, CompletionHandler<void(const Vector<WebCore::ElementContext>&)>&&);
 621     void focusTextInputContext(const WebCore::ElementContext&, CompletionHandler<void(bool)>&&);
 622
 623 #if PLATFORM(IOS_FAMILY)
 624     WebCore::FloatSize screenSize() const;
 625     WebCore::FloatSize availableScreenSize() const;
 626     WebCore::FloatSize overrideScreenSize() const;
 627     int32_t deviceOrientation() const { return m_deviceOrientation; }
 628     void didReceiveMobileDocType(bool);
 629
 630     void setUseTestingViewportConfiguration(bool useTestingViewport) { m_useTestingViewportConfiguration = useTestingViewport; }
 631     bool isUsingTestingViewportConfiguration() const { return m_useTestingViewportConfiguration; }
 632
 633     double minimumPageScaleFactor() const;
 634     double maximumPageScaleFactor() const;
 635     double maximumPageScaleFactorIgnoringAlwaysScalable() const;
 636     bool allowsUserScaling() const;
 637     bool hasStablePageScaleFactor() const { return m_hasStablePageScaleFactor; }
 638
 639     void handleTap(const WebCore::IntPoint&, OptionSet<WebKit::WebEvent::Modifier>, TransactionID lastLayerTreeTransactionId);
 640     void potentialTapAtPosition(uint64_t requestID, const WebCore::FloatPoint&, bool shouldRequestMagnificationInformation);
 641     void commitPotentialTap(OptionSet<WebKit::WebEvent::Modifier>, TransactionID lastLayerTreeTransactionId, WebCore::PointerID);
 642     void commitPotentialTapFailed();
 643     void cancelPotentialTap();
 644     void cancelPotentialTapInFrame(WebFrame&);
 645     void tapHighlightAtPosition(uint64_t requestID, const WebCore::FloatPoint&);
 646     void didRecognizeLongPress();
 647     void handleDoubleTapForDoubleClickAtPoint(const WebCore::IntPoint&, OptionSet<WebKit::WebEvent::Modifier>, TransactionID lastLayerTreeTransactionId);
 648
 649     void inspectorNodeSearchMovedToPosition(const WebCore::FloatPoint&);
 650     void inspectorNodeSearchEndedAtPosition(const WebCore::FloatPoint&);
 651
 652     void blurFocusedElement();
 653     void requestFocusedElementInformation(CallbackID);
 654     void selectWithGesture(const WebCore::IntPoint&, uint32_t granularity, uint32_t gestureType, uint32_t gestureState, bool isInteractingWithFocusedElement, CallbackID);
 655     void updateSelectionWithTouches(const WebCore::IntPoint&, uint32_t touches, bool baseIsStart, CallbackID);
 656     void selectWithTwoTouches(const WebCore::IntPoint& from, const WebCore::IntPoint& to, uint32_t gestureType, uint32_t gestureState, CallbackID);
 657     void extendSelection(uint32_t granularity);
 658     void selectWordBackward();
 659     void moveSelectionByOffset(int32_t offset, CallbackID);
 660     void selectTextWithGranularityAtPoint(const WebCore::IntPoint&, uint32_t granularity, bool isInteractingWithFocusedElement, CallbackID);
 661     void selectPositionAtBoundaryWithDirection(const WebCore::IntPoint&, uint32_t granularity, uint32_t direction, bool isInteractingWithFocusedElement, CallbackID);
 662     void moveSelectionAtBoundaryWithDirection(uint32_t granularity, uint32_t direction, CallbackID);
 663     void selectPositionAtPoint(const WebCore::IntPoint&, bool isInteractingWithFocusedElement, CallbackID);
 664     void beginSelectionInDirection(uint32_t direction, CallbackID);
 665     void updateSelectionWithExtentPoint(const WebCore::IntPoint&, bool isInteractingWithFocusedElement, CallbackID);
 666     void updateSelectionWithExtentPointAndBoundary(const WebCore::IntPoint&, uint32_t granularity, bool isInteractingWithFocusedElement, CallbackID);
 667
 668     void requestDictationContext(CallbackID);
 669     void replaceDictatedText(const String& oldText, const String& newText);
 670     void replaceSelectedText(const String& oldText, const String& newText);
 671     void requestAutocorrectionData(const String& textForAutocorrection, CompletionHandler<void(WebAutocorrectionData)>&& reply);
 672     void applyAutocorrection(const String& correction, const String& originalText, CallbackID);
 673     void syncApplyAutocorrection(const String& correction, const String& originalText, CompletionHandler<void(bool)>&&);
 674     void requestAutocorrectionContext();
 675     void getPositionInformation(const InteractionInformationRequest&, CompletionHandler<void(InteractionInformationAtPosition&&)>&&);
 676     void requestPositionInformation(const InteractionInformationRequest&);
 677     void startInteractionWithElementContextOrPosition(Optional<WebCore::ElementContext>&&, WebCore::IntPoint&&);
 678     void stopInteraction();
 679     void performActionOnElement(uint32_t action);
 680     void focusNextFocusedElement(bool isForward, CallbackID);
 681     void autofillLoginCredentials(const String&, const String&);
 682     void setFocusedElementValue(const String&);
 683     void setFocusedElementValueAsNumber(double);
 684     void setFocusedElementSelectedIndex(uint32_t index, bool allowMultipleSelection);
 685     void setIsShowingInputViewForFocusedElement(bool);
 686     bool isShowingInputViewForFocusedElement() const { return m_isShowingInputViewForFocusedElement; }
 687     void updateSelectionAppearance();
 688     void getSelectionContext(CallbackID);
 689     void handleTwoFingerTapAtPoint(const WebCore::IntPoint&, OptionSet<WebKit::WebEvent::Modifier>, uint64_t requestID);
 690     void handleStylusSingleTapAtPoint(const WebCore::IntPoint&, uint64_t requestID);
 691     void getRectsForGranularityWithSelectionOffset(uint32_t, int32_t, CallbackID);
 692     void getRectsAtSelectionOffsetWithText(int32_t, const String&, CallbackID);
 693     void storeSelectionForAccessibility(bool);
 694     void startAutoscrollAtPosition(const WebCore::FloatPoint&);
 695     void cancelAutoscroll();
 696     void requestEvasionRectsAboveSelection(CompletionHandler<void(const Vector<WebCore::FloatRect>&)>&&);
 697
 698     void contentSizeCategoryDidChange(const String&);
 699
 700     Seconds eventThrottlingDelay() const;
 701
 702     void showInspectorHighlight(const WebCore::Highlight&);
 703     void hideInspectorHighlight();
 704
 705     void showInspectorIndication();
 706     void hideInspectorIndication();
 707
 708     void enableInspectorNodeSearch();
 709     void disableInspectorNodeSearch();
 710
 711     bool forceAlwaysUserScalable() const { return m_forceAlwaysUserScalable; }
 712     void setForceAlwaysUserScalable(bool);
 713
 714     void updateSelectionWithDelta(int64_t locationDelta, int64_t lengthDelta, CompletionHandler<void()>&&);
 715     void requestDocumentEditingContext(WebKit::DocumentEditingContextRequest, CompletionHandler<void(WebKit::DocumentEditingContext)>&&);
 716 #endif
 717
 718 #if PLATFORM(IOS_FAMILY) && ENABLE(IOS_TOUCH_EVENTS)
 719     void dispatchAsynchronousTouchEvents(const Vector<WebTouchEvent, 1>& queue);
 720 #endif
 721
 722     bool hasRichlyEditableSelection() const;
 723
 724     enum class LayerTreeFreezeReason {
 725         PageTransition          = 1 << 0,
 726         BackgroundApplication   = 1 << 1,
 727         ProcessSuspended        = 1 << 2,
 728         PageSuspended           = 1 << 3,
 729         Printing                = 1 << 4,
 730         ProcessSwap             = 1 << 5,
 731     };
 732     void freezeLayerTree(LayerTreeFreezeReason);
 733     void unfreezeLayerTree(LayerTreeFreezeReason);
 734
 735     void markLayersVolatile(Function<void(bool)>&& completionHandler = { });
 736     void cancelMarkLayersVolatile();
 737
 738     NotificationPermissionRequestManager* notificationPermissionRequestManager();
 739
 740     void pageDidScroll();
 741
 742 #if ENABLE(CONTEXT_MENUS)
 743     WebContextMenu* contextMenu();
 744     WebContextMenu* contextMenuAtPointInWindow(const WebCore::IntPoint&);
 745 #endif
 746
 747     bool hasLocalDataForURL(const URL&);
 748
 749     static bool canHandleRequest(const WebCore::ResourceRequest&);
 750
 751     class SandboxExtensionTracker {
 752     public:
 753         ~SandboxExtensionTracker();
 754
 755         void invalidate();
 756
 757         void beginLoad(WebFrame*, SandboxExtension::Handle&&);
 758         void beginReload(WebFrame*, SandboxExtension::Handle&&);
 759         void willPerformLoadDragDestinationAction(RefPtr<SandboxExtension>&& pendingDropSandboxExtension);
 760         void didStartProvisionalLoad(WebFrame*);
 761         void didCommitProvisionalLoad(WebFrame*);
 762         void didFailProvisionalLoad(WebFrame*);
 763
 764     private:
 765         void setPendingProvisionalSandboxExtension(RefPtr<SandboxExtension>&&);
 766         bool shouldReuseCommittedSandboxExtension(WebFrame*);
 767
 768         RefPtr<SandboxExtension> m_pendingProvisionalSandboxExtension;
 769         RefPtr<SandboxExtension> m_provisionalSandboxExtension;
 770         RefPtr<SandboxExtension> m_committedSandboxExtension;
 771     };
 772
 773     SandboxExtensionTracker& sandboxExtensionTracker() { return m_sandboxExtensionTracker; }
 774
 775 #if PLATFORM(GTK)
 776     void setComposition(const String&, const Vector<WebCore::CompositionUnderline>&, const EditingRange& selectionRange);
 777     void confirmComposition(const String& text);
 778
 779     void collapseSelectionInFrame(WebCore::FrameIdentifier);
 780     void showEmojiPicker(WebCore::Frame&);
 781
 782     void getCenterForZoomGesture(const WebCore::IntPoint& centerInViewCoordinates, CompletionHandler<void(WebCore::IntPoint&&)>&&);
 783 #endif
 784
 785     void didApplyStyle();
 786     void didChangeSelection();
 787     void didChangeOverflowScrollPosition();
 788     void didChangeContents();
 789     void discardedComposition();
 790     void canceledComposition();
 791     void didUpdateComposition();
 792     void didEndUserTriggeredSelectionChanges();
 793
 794 #if PLATFORM(COCOA)
 795     void registerUIProcessAccessibilityTokens(const IPC::DataReference& elemenToken, const IPC::DataReference& windowToken);
 796     WKAccessibilityWebPageObject* accessibilityRemoteObject();
 797     NSObject *accessibilityObjectForMainFramePlugin();
 798     const WebCore::FloatPoint& accessibilityPosition() const { return m_accessibilityPosition; }
 799
 800     void sendComplexTextInputToPlugin(uint64_t pluginComplexTextInputIdentifier, const String& textInput);
 801
 802     void setTextAsync(const String&);
 803     void insertTextAsync(const String& text, const EditingRange& replacementRange, InsertTextOptions&&);
 804     void hasMarkedText(CompletionHandler<void(bool)>&&);
 805     void getMarkedRangeAsync(CallbackID);
 806     void getSelectedRangeAsync(CallbackID);
 807     void characterIndexForPointAsync(const WebCore::IntPoint&, CallbackID);
 808     void firstRectForCharacterRangeAsync(const EditingRange&, CallbackID);
 809     void setCompositionAsync(const String& text, const Vector<WebCore::CompositionUnderline>& underlines, const EditingRange& selectionRange, const EditingRange& replacementRange);
 810     void confirmCompositionAsync();
 811
 812     void readSelectionFromPasteboard(const String& pasteboardName, CompletionHandler<void(bool&&)>&&);
 813     void getStringSelectionForPasteboard(CompletionHandler<void(String&&)>&&);
 814     void getDataSelectionForPasteboard(const String pasteboardType, CompletionHandler<void(SharedMemory::Handle&&, uint64_t)>&&);
 815     void shouldDelayWindowOrderingEvent(const WebKit::WebMouseEvent&, CompletionHandler<void(bool)>&&);
 816     void acceptsFirstMouse(int eventNumber, const WebKit::WebMouseEvent&, CompletionHandler<void(bool)>&&);
 817     bool performNonEditingBehaviorForSelector(const String&, WebCore::KeyboardEvent*);
 818 #endif
 819
 820 #if PLATFORM(MAC)
 821     void insertDictatedTextAsync(const String& text, const EditingRange& replacementRange, const Vector<WebCore::DictationAlternative>& dictationAlternativeLocations, bool registerUndoGroup = false);
 822     void attributedSubstringForCharacterRangeAsync(const EditingRange&, CallbackID);
 823     void fontAtSelection(CallbackID);
 824 #endif
 825
 826 #if PLATFORM(COCOA) && ENABLE(SERVICE_CONTROLS)
 827     void replaceSelectionWithPasteboardData(const Vector<String>& types, const IPC::DataReference&);
 828 #endif
 829
 830     void setCompositionForTesting(const String& compositionString, uint64_t from, uint64_t length, bool suppressUnderline);
 831     bool hasCompositionForTesting();
 832     void confirmCompositionForTesting(const String& compositionString);
 833
 834 #if PLATFORM(COCOA)
 835     bool isSpeaking();
 836     void speak(const String&);
 837     void stopSpeaking();
 838
 839     void performDictionaryLookupForSelection(WebCore::Frame&, const WebCore::VisibleSelection&, WebCore::TextIndicatorPresentationTransition);
 840 #endif
 841
 842     bool isSmartInsertDeleteEnabled();
 843     void setSmartInsertDeleteEnabled(bool);
 844
 845     bool isSelectTrailingWhitespaceEnabled() const;
 846     void setSelectTrailingWhitespaceEnabled(bool);
 847
 848     void replaceSelectionWithText(WebCore::Frame*, const String&);
 849     void clearSelection();
 850     void restoreSelectionInFocusedEditableElement();
 851
 852 #if ENABLE(DRAG_SUPPORT) && PLATFORM(GTK)
 853     void performDragControllerAction(DragControllerAction, const WebCore::IntPoint& clientPosition, const WebCore::IntPoint& globalPosition, uint64_t draggingSourceOperationMask, WebSelectionData&&, uint32_t flags);
 854 #endif
 855
 856 #if ENABLE(DRAG_SUPPORT) && !PLATFORM(GTK)
 857     void performDragControllerAction(DragControllerAction, const WebCore::DragData&, SandboxExtension::Handle&&, SandboxExtension::HandleArray&&);
 858 #endif
 859
 860 #if ENABLE(DRAG_SUPPORT)
 861     void dragEnded(WebCore::IntPoint clientPosition, WebCore::IntPoint globalPosition, uint64_t operation);
 862
 863     void willPerformLoadDragDestinationAction();
 864     void mayPerformUploadDragDestinationAction();
 865
 866     void willStartDrag() { ASSERT(!m_isStartingDrag); m_isStartingDrag = true; }
 867     void didStartDrag();
 868     void dragCancelled();
 869     WebCore::DragSourceAction allowedDragSourceActions() const { return m_allowedDragSourceActions; }
 870 #endif
 871
 872     void beginPrinting(WebCore::FrameIdentifier, const PrintInfo&);
 873     void endPrinting();
 874     void computePagesForPrinting(WebCore::FrameIdentifier, const PrintInfo&, CallbackID);
 875     void computePagesForPrintingImpl(WebCore::FrameIdentifier, const PrintInfo&, Vector<WebCore::IntRect>& pageRects, double& totalScaleFactor, WebCore::FloatBoxExtent& computedMargin);
 876
 877 #if PLATFORM(COCOA)
 878     void drawRectToImage(WebCore::FrameIdentifier, const PrintInfo&, const WebCore::IntRect&, const WebCore::IntSize&, CallbackID);
 879     void drawPagesToPDF(WebCore::FrameIdentifier, const PrintInfo&, uint32_t first, uint32_t count, CallbackID);
 880     void drawPagesToPDFImpl(WebCore::FrameIdentifier, const PrintInfo&, uint32_t first, uint32_t count, RetainPtr<CFMutableDataRef>& pdfPageData);
 881 #endif
 882
 883 #if PLATFORM(IOS_FAMILY)
 884     void computePagesForPrintingAndDrawToPDF(WebCore::FrameIdentifier, const PrintInfo&, CallbackID, Messages::WebPage::ComputePagesForPrintingAndDrawToPDFDelayedReply&&);
 885 #endif
 886
 887     void drawToPDF(WebCore::FrameIdentifier, const Optional<WebCore::FloatRect>&, CallbackID);
 888
 889 #if PLATFORM(GTK)
 890     void drawPagesForPrinting(WebCore::FrameIdentifier, const PrintInfo&, CallbackID);
 891     void didFinishPrintOperation(const WebCore::ResourceError&, CallbackID);
 892 #endif
 893
 894     void addResourceRequest(unsigned long, const WebCore::ResourceRequest&);
 895     void removeResourceRequest(unsigned long);
 896
 897     void setMediaVolume(float);
 898     void setMuted(WebCore::MediaProducer::MutedStateFlags);
 899     void setMayStartMediaWhenInWindow(bool);
 900     void stopMediaCapture();
 901
 902 #if ENABLE(MEDIA_SESSION)
 903     void handleMediaEvent(uint32_t /* WebCore::MediaEventType */);
 904     void setVolumeOfMediaElement(double, uint64_t);
 905 #endif
 906
 907     void updateMainFrameScrollOffsetPinning();
 908
 909     bool mainFrameHasCustomContentProvider() const;
 910     void addMIMETypeWithCustomContentProvider(const String&);
 911
 912     void mainFrameDidLayout();
 913
 914     bool canRunBeforeUnloadConfirmPanel() const { return m_canRunBeforeUnloadConfirmPanel; }
 915     void setCanRunBeforeUnloadConfirmPanel(bool canRunBeforeUnloadConfirmPanel) { m_canRunBeforeUnloadConfirmPanel = canRunBeforeUnloadConfirmPanel; }
 916
 917     bool canRunModal() const { return m_canRunModal; }
 918     void setCanRunModal(bool canRunModal) { m_canRunModal = canRunModal; }
 919
 920     void runModal();
 921
 922     void setDeviceScaleFactor(float);
 923     float deviceScaleFactor() const;
 924
 925     void forceRepaintWithoutCallback();
 926
 927     void unmarkAllMisspellings();
 928     void unmarkAllBadGrammar();
 929
 930 #if PLATFORM(COCOA)
 931     void handleAlternativeTextUIResult(const String&);
 932 #endif
 933
 934     // For testing purpose.
 935     void simulateMouseDown(int button, WebCore::IntPoint, int clickCount, WKEventModifiers, WallTime);
 936     void simulateMouseUp(int button, WebCore::IntPoint, int clickCount, WKEventModifiers, WallTime);
 937     void simulateMouseMotion(WebCore::IntPoint, WallTime);
 938
 939 #if ENABLE(CONTEXT_MENUS)
 940     void contextMenuShowing() { m_isShowingContextMenu = true; }
 941 #endif
 942
 943     void wheelEvent(const WebWheelEvent&);
 944
 945     void wheelEventHandlersChanged(bool);
 946     void recomputeShortCircuitHorizontalWheelEventsState();
 947
 948 #if ENABLE(MAC_GESTURE_EVENTS)
 949     void gestureEvent(const WebGestureEvent&);
 950 #endif
 951
 952     void updateVisibilityState(bool isInitialState = false);
 953
 954 #if PLATFORM(IOS_FAMILY)
 955     void setViewportConfigurationViewLayoutSize(const WebCore::FloatSize&, double scaleFactor, double minimumEffectiveDeviceWidth);
 956     void setMaximumUnobscuredSize(const WebCore::FloatSize&);
 957     void setDeviceOrientation(int32_t);
 958     void setOverrideViewportArguments(const Optional<WebCore::ViewportArguments>&);
 959     void dynamicViewportSizeUpdate(const WebCore::FloatSize& viewLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const WebCore::FloatRect& targetExposedContentRect, const WebCore::FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& targetUnobscuredSafeAreaInsets, double scale, int32_t deviceOrientation, DynamicViewportSizeUpdateID);
 960     Optional<float> scaleFromUIProcess(const VisibleContentRectUpdateInfo&) const;
 961     void updateVisibleContentRects(const VisibleContentRectUpdateInfo&, MonotonicTime oldestTimestamp);
 962     bool scaleWasSetByUIProcess() const { return m_scaleWasSetByUIProcess; }
 963     void willStartUserTriggeredZooming();
 964     void applicationWillResignActive();
 965     void applicationDidEnterBackground(bool isSuspendedUnderLock);
 966     void applicationDidFinishSnapshottingAfterEnteringBackground();
 967     void applicationWillEnterForeground(bool isSuspendedUnderLock);
 968     void applicationDidBecomeActive();
 969     void didFinishContentChangeObserving(WKContentChange);
 970
 971     bool platformPrefersTextLegibilityBasedZoomScaling() const;
 972     const WebCore::ViewportConfiguration& viewportConfiguration() const { return m_viewportConfiguration; }
 973
 974     void hardwareKeyboardAvailabilityChanged(bool keyboardIsAttached);
 975
 976     void updateStringForFind(const String&);
 977
 978     bool canShowWhileLocked() const { return m_canShowWhileLocked; }
 979 #endif
 980
 981 #if ENABLE(IOS_TOUCH_EVENTS)
 982     void dispatchTouchEvent(const WebTouchEvent&, bool& handled);
 983 #endif
 984
 985     bool shouldUseCustomContentProviderForResponse(const WebCore::ResourceResponse&);
 986
 987     bool asynchronousPluginInitializationEnabled() const { return m_asynchronousPluginInitializationEnabled; }
 988     void setAsynchronousPluginInitializationEnabled(bool enabled) { m_asynchronousPluginInitializationEnabled = enabled; }
 989     bool asynchronousPluginInitializationEnabledForAllPlugins() const { return m_asynchronousPluginInitializationEnabledForAllPlugins; }
 990     void setAsynchronousPluginInitializationEnabledForAllPlugins(bool enabled) { m_asynchronousPluginInitializationEnabledForAllPlugins = enabled; }
 991     bool artificialPluginInitializationDelayEnabled() const { return m_artificialPluginInitializationDelayEnabled; }
 992     void setArtificialPluginInitializationDelayEnabled(bool enabled) { m_artificialPluginInitializationDelayEnabled = enabled; }
 993     void setTabToLinksEnabled(bool enabled) { m_tabToLinks = enabled; }
 994     bool tabToLinksEnabled() const { return m_tabToLinks; }
 995
 996     bool scrollingPerformanceLoggingEnabled() const { return m_scrollingPerformanceLoggingEnabled; }
 997     void setScrollingPerformanceLoggingEnabled(bool);
 998
 999 #if PLATFORM(COCOA)
1000     bool shouldUsePDFPlugin() const;
1001     bool pdfPluginEnabled() const { return m_pdfPluginEnabled; }
1002     void setPDFPluginEnabled(bool enabled) { m_pdfPluginEnabled = enabled; }
1003
1004     NSDictionary *dataDetectionContext() const { return m_dataDetectionContext.get(); }
1005 #endif
1006
1007     void savePDFToFileInDownloadsFolder(const String& suggestedFilename, const URL& originatingURL, const uint8_t* data, unsigned long size);
1008
1009 #if PLATFORM(COCOA)
1010     void savePDFToTemporaryFolderAndOpenWithNativeApplication(const String& suggestedFilename, const String& originatingURLString, const uint8_t* data, unsigned long size, const String& pdfUUID);
1011 #endif
1012
1013     bool mainFrameIsScrollable() const { return m_mainFrameIsScrollable; }
1014
1015     void setAlwaysShowsHorizontalScroller(bool);
1016     void setAlwaysShowsVerticalScroller(bool);
1017
1018     bool alwaysShowsHorizontalScroller() const { return m_alwaysShowsHorizontalScroller; };
1019     bool alwaysShowsVerticalScroller() const { return m_alwaysShowsVerticalScroller; };
1020
1021     void setMinimumSizeForAutoLayout(const WebCore::IntSize&);
1022     WebCore::IntSize minimumSizeForAutoLayout() const { return m_minimumSizeForAutoLayout; }
1023
1024     void setAutoSizingShouldExpandToViewHeight(bool shouldExpand);
1025     bool autoSizingShouldExpandToViewHeight() { return m_autoSizingShouldExpandToViewHeight; }
1026
1027     void setViewportSizeForCSSViewportUnits(Optional<WebCore::IntSize>);
1028     Optional<WebCore::IntSize> viewportSizeForCSSViewportUnits() const { return m_viewportSizeForCSSViewportUnits; }
1029
1030     bool canShowMIMEType(const String& MIMEType) const;
1031     bool canShowResponse(const WebCore::ResourceResponse&) const;
1032
1033     void addTextCheckingRequest(uint64_t requestID, Ref<WebCore::TextCheckingRequest>&&);
1034     void didFinishCheckingText(uint64_t requestID, const Vector<WebCore::TextCheckingResult>&);
1035     void didCancelCheckingText(uint64_t requestID);
1036
1037 #if ENABLE(PRIMARY_SNAPSHOTTED_PLUGIN_HEURISTIC)
1038     void determinePrimarySnapshottedPlugIn();
1039     void determinePrimarySnapshottedPlugInTimerFired();
1040     void resetPrimarySnapshottedPlugIn();
1041     bool matchesPrimaryPlugIn(const String& pageOrigin, const String& pluginOrigin, const String& mimeType) const;
1042     bool plugInIntersectsSearchRect(WebCore::HTMLPlugInImageElement& pluginImageElement);
1043     bool plugInIsPrimarySize(WebCore::HTMLPlugInImageElement& pluginImageElement, unsigned &pluginArea);
1044 #endif
1045
1046 #if ENABLE(DATA_DETECTION)
1047     void setDataDetectionResults(NSArray *);
1048     void detectDataInAllFrames(uint64_t, CompletionHandler<void(const DataDetectionResult&)>&&);
1049     void removeDataDetectedLinks(CompletionHandler<void(const DataDetectionResult&)>&&);
1050 #endif
1051
1052     unsigned extendIncrementalRenderingSuppression();
1053     void stopExtendingIncrementalRenderingSuppression(unsigned token);
1054     bool shouldExtendIncrementalRenderingSuppression() { return !m_activeRenderingSuppressionTokens.isEmpty(); }
1055
1056     WebCore::ScrollPinningBehavior scrollPinningBehavior() { return m_scrollPinningBehavior; }
1057     void setScrollPinningBehavior(uint32_t /* WebCore::ScrollPinningBehavior */ pinning);
1058
1059     Optional<WebCore::ScrollbarOverlayStyle> scrollbarOverlayStyle() { return m_scrollbarOverlayStyle; }
1060     void setScrollbarOverlayStyle(Optional<uint32_t /* WebCore::ScrollbarOverlayStyle */> scrollbarStyle);
1061
1062     Ref<WebCore::DocumentLoader> createDocumentLoader(WebCore::Frame&, const WebCore::ResourceRequest&, const WebCore::SubstituteData&);
1063     void updateCachedDocumentLoader(WebDocumentLoader&, WebCore::Frame&);
1064
1065     void getBytecodeProfile(CallbackID);
1066     void getSamplingProfilerOutput(CallbackID);
1067
1068 #if ENABLE(SERVICE_CONTROLS) || ENABLE(TELEPHONE_NUMBER_DETECTION)
1069     void handleTelephoneNumberClick(const String& number, const WebCore::IntPoint&);
1070     void handleSelectionServiceClick(WebCore::FrameSelection&, const Vector<String>& telephoneNumbers, const WebCore::IntPoint&);
1071 #endif
1072
1073     void didChangeScrollOffsetForFrame(WebCore::Frame*);
1074
1075     void setMainFrameProgressCompleted(bool completed) { m_mainFrameProgressCompleted = completed; }
1076     bool shouldDispatchFakeMouseMoveEvents() const { return m_shouldDispatchFakeMouseMoveEvents; }
1077
1078     void postMessage(const String& messageName, API::Object* messageBody);
1079     void postSynchronousMessageForTesting(const String& messageName, API::Object* messageBody, RefPtr<API::Object>& returnData);
1080     void postMessageIgnoringFullySynchronousMode(const String& messageName, API::Object* messageBody);
1081
1082 #if PLATFORM(GTK)
1083     void setInputMethodState(bool);
1084 #endif
1085
1086     void imageOrMediaDocumentSizeChanged(const WebCore::IntSize&);
1087
1088 #if ENABLE(VIDEO) && USE(GSTREAMER)
1089     void requestInstallMissingMediaPlugins(const String& details, const String& description, WebCore::MediaPlayerRequestInstallMissingPluginsCallback&);
1090 #endif
1091
1092     void addUserScript(String&& source, WebCore::UserContentInjectedFrames, WebCore::UserScriptInjectionTime);
1093     void addUserStyleSheet(const String& source, WebCore::UserContentInjectedFrames);
1094     void removeAllUserContent();
1095
1096     void dispatchDidReachLayoutMilestone(OptionSet<WebCore::LayoutMilestone>);
1097
1098     void didRestoreScrollPosition();
1099
1100     bool isControlledByAutomation() const;
1101     void setControlledByAutomation(bool);
1102
1103     void connectInspector(const String& targetId, Inspector::FrontendChannel::ConnectionType);
1104     void disconnectInspector(const String& targetId);
1105     void sendMessageToTargetBackend(const String& targetId, const String& message);
1106
1107     void insertNewlineInQuotedContent();
1108
1109 #if USE(OS_STATE)
1110     WallTime loadCommitTime() const { return m_loadCommitTime; }
1111 #endif
1112
1113 #if ENABLE(GAMEPAD)
1114     void gamepadActivity(const Vector<GamepadData>&, bool shouldMakeGamepadsVisible);
1115 #endif
1116
1117 #if ENABLE(POINTER_LOCK)
1118     void didAcquirePointerLock();
1119     void didNotAcquirePointerLock();
1120     void didLosePointerLock();
1121 #endif
1122
1123     void didGetLoadDecisionForIcon(bool decision, CallbackID loadIdentifier, OptionalCallbackID);
1124     void setUseIconLoadingClient(bool);
1125
1126 #if PLATFORM(IOS_FAMILY) && ENABLE(DRAG_SUPPORT)
1127     void didConcludeEditDrag();
1128     void didConcludeDrop();
1129 #endif
1130
1131     void didFinishLoadingImageForElement(WebCore::HTMLImageElement&);
1132
1133     WebURLSchemeHandlerProxy* urlSchemeHandlerForScheme(const String&);
1134     void stopAllURLSchemeTasks();
1135
1136     Optional<double> cpuLimit() const { return m_cpuLimit; }
1137
1138     static PluginView* pluginViewForFrame(WebCore::Frame*);
1139
1140     void flushPendingEditorStateUpdate();
1141
1142 #if ENABLE(RESOURCE_LOAD_STATISTICS)
1143     void hasStorageAccess(WebCore::RegistrableDomain&& subFrameDomain, WebCore::RegistrableDomain&& topFrameDomain, WebFrame&, CompletionHandler<void(bool)>&&);
1144     void requestStorageAccess(WebCore::RegistrableDomain&& subFrameDomain, WebCore::RegistrableDomain&& topFrameDomain, WebFrame&, CompletionHandler<void(WebCore::StorageAccessWasGranted, WebCore::StorageAccessPromptWasShown)>&&);
1145     void wasLoadedWithDataTransferFromPrevalentResource();
1146 #endif
1147
1148 #if ENABLE(DEVICE_ORIENTATION)
1149     void shouldAllowDeviceOrientationAndMotionAccess(WebCore::FrameIdentifier, WebCore::SecurityOriginData&&, bool mayPrompt, CompletionHandler<void(WebCore::DeviceOrientationOrMotionPermissionState)>&&);
1150 #endif
1151
1152     void showShareSheet(WebCore::ShareDataWithParsedURL&, CompletionHandler<void(bool)>&& callback);
1153     void didCompleteShareSheet(bool wasCompleted, ShareSheetCallbackID contextId);
1154
1155 #if ENABLE(ATTACHMENT_ELEMENT)
1156     void insertAttachment(const String& identifier, Optional<uint64_t>&& fileSize, const String& fileName, const String& contentType, CallbackID);
1157     void updateAttachmentAttributes(const String& identifier, Optional<uint64_t>&& fileSize, const String& contentType, const String& fileName, const IPC::DataReference& enclosingImageData, CallbackID);
1158 #endif
1159
1160 #if ENABLE(APPLICATION_MANIFEST)
1161     void getApplicationManifest(CallbackID);
1162     void didFinishLoadingApplicationManifest(uint64_t, const Optional<WebCore::ApplicationManifest>&);
1163 #endif
1164
1165 #if USE(WPE_RENDERER)
1166     int hostFileDescriptor() const { return m_hostFileDescriptor.fileDescriptor(); }
1167 #endif
1168
1169     void updateCurrentModifierState(OptionSet<WebCore::PlatformEvent::Modifier> modifiers);
1170
1171     UserContentControllerIdentifier userContentControllerIdentifier() const { return m_userContentController->identifier(); }
1172
1173     WebCore::UserInterfaceLayoutDirection userInterfaceLayoutDirection() const { return m_userInterfaceLayoutDirection; }
1174
1175     bool isSuspended() const { return m_isSuspended; }
1176
1177     void didReceiveWebPageMessage(IPC::Connection&, IPC::Decoder&);
1178
1179     template<typename T>
1180     bool sendSyncWithDelayedReply(T&& message, typename T::Reply&& reply)
1181     {
1182         cancelGesturesBlockedOnSynchronousReplies();
1183         return sendSync(WTFMove(message), WTFMove(reply), Seconds::infinity(), IPC::SendSyncOption::InformPlatformProcessWillSuspend);
1184     }
1185
1186     WebCore::DOMPasteAccessResponse requestDOMPasteAccess(const String& originIdentifier);
1187     WebCore::IntRect rectForElementAtInteractionLocation() const;
1188
1189     const Optional<WebCore::Color>& backgroundColor() const { return m_backgroundColor; }
1190
1191     void suspendAllMediaBuffering();
1192     void resumeAllMediaBuffering();
1193
1194     void configureLoggingChannel(const String&, WTFLogChannelState, WTFLogLevel);
1195
1196     WebCore::Element* elementForContext(const WebCore::ElementContext&) const;
1197     Optional<WebCore::ElementContext> contextForElement(WebCore::Element&) const;
1198
1199     void startTextManipulations(Vector<WebCore::TextManipulationController::ExclusionRule>&&, CompletionHandler<void()>&&);
1200     void completeTextManipulation(WebCore::TextManipulationController::ItemIdentifier,
1201         const Vector<WebCore::TextManipulationController::ManipulationToken>&,
1202         CompletionHandler<void(WebCore::TextManipulationController::ManipulationResult)>&&);
1203
1204 #if ENABLE(APPLE_PAY)
1205     WebPaymentCoordinator* paymentCoordinator();
1206 #endif
1207
1208 #if ENABLE(PLATFORM_DRIVEN_TEXT_CHECKING)
1209     TextCheckingControllerProxy& textCheckingController() { return m_textCheckingControllerProxy.get(); }
1210 #endif
1211
1212 #if PLATFORM(COCOA)
1213     void setRemoteObjectRegistry(WebRemoteObjectRegistry*);
1214     WebRemoteObjectRegistry* remoteObjectRegistry();
1215 #endif
1216
1217     WebPageProxyIdentifier webPageProxyIdentifier() const { return m_webPageProxyIdentifier; }
1218
1219     void updateIntrinsicContentSizeIfNeeded(const WebCore::IntSize&);
1220     void scheduleFullEditorStateUpdate();
1221     bool isThrottleable() const;
1222
1223     bool userIsInteracting() const { return m_userIsInteracting; }
1224     void setUserIsInteracting(bool userIsInteracting) { m_userIsInteracting = userIsInteracting; }
1225
1226     bool firstFlushAfterCommit() const { return m_firstFlushAfterCommit; }
1227     void setFirstFlushAfterCommit(bool f) { m_firstFlushAfterCommit = f; }
1228
1229 #if PLATFORM(IOS_FAMILY)
1230     // This excludes layout overflow, includes borders.
1231     static WebCore::IntRect rootViewBoundsForElement(const WebCore::Element&);
1232     // These include layout overflow for overflow:visible elements, but exclude borders.
1233     static WebCore::IntRect absoluteInteractionBoundsForElement(const WebCore::Element&);
1234     static WebCore::IntRect rootViewInteractionBoundsForElement(const WebCore::Element&);
1235 #endif // PLATFORM(IOS_FAMILY)
1236
1237 #if USE(QUICK_LOOK)
1238     void didStartLoadForQuickLookDocumentInMainFrame(const String& fileName, const String& uti);
1239     void didFinishLoadForQuickLookDocumentInMainFrame(const WebCore::SharedBuffer&);
1240     void requestPasswordForQuickLookDocumentInMainFrame(const String& fileName, CompletionHandler<void(const String&)>&&);
1241 #endif
1242
1243 private:
1244     WebPage(WebCore::PageIdentifier, WebPageCreationParameters&&);
1245
1246     void updateThrottleState();
1247
1248     // IPC::MessageSender
1249     IPC::Connection* messageSenderConnection() const override;
1250     uint64_t messageSenderDestinationID() const override;
1251
1252     void platformInitialize();
1253     void platformReinitialize();
1254     void platformDetach();
1255     void platformEditorState(WebCore::Frame&, EditorState& result, IncludePostLayoutDataHint) const;
1256     void platformWillPerformEditingCommand();
1257     void sendEditorStateUpdate();
1258
1259 #if PLATFORM(COCOA)
1260     void sendTouchBarMenuDataAddedUpdate(WebCore::HTMLMenuElement&);
1261     void sendTouchBarMenuDataRemovedUpdate(WebCore::HTMLMenuElement&);
1262     void sendTouchBarMenuItemDataAddedUpdate(WebCore::HTMLMenuItemElement&);
1263     void sendTouchBarMenuItemDataRemovedUpdate(WebCore::HTMLMenuItemElement&);
1264 #endif
1265
1266     void didReceiveSyncWebPageMessage(IPC::Connection&, IPC::Decoder&, std::unique_ptr<IPC::Encoder>&);
1267
1268 #if PLATFORM(IOS_FAMILY)
1269     void resetViewportDefaultConfiguration(WebFrame* mainFrame, bool hasMobileDocType = false);
1270     enum class ZoomToInitialScale { No, Yes };
1271     void viewportConfigurationChanged(ZoomToInitialScale = ZoomToInitialScale::No);
1272     void updateViewportSizeForCSSViewportUnits();
1273
1274     static void convertSelectionRectsToRootView(WebCore::FrameView*, Vector<WebCore::SelectionRect>&);
1275
1276     void getFocusedElementInformation(FocusedElementInformation&);
1277     void platformInitializeAccessibility();
1278     void generateSyntheticEditingCommand(SyntheticEditingCommandType);
1279     void handleSyntheticClick(WebCore::Node& nodeRespondingToClick, const WebCore::FloatPoint& location, OptionSet<WebKit::WebEvent::Modifier>, WebCore::PointerID = WebCore::mousePointerID);
1280     void completeSyntheticClick(WebCore::Node& nodeRespondingToClick, const WebCore::FloatPoint& location, OptionSet<WebKit::WebEvent::Modifier>, WebCore::SyntheticClickType, WebCore::PointerID = WebCore::mousePointerID);
1281     void sendTapHighlightForNodeIfNecessary(uint64_t requestID, WebCore::Node*);
1282     WebCore::VisiblePosition visiblePositionInFocusedNodeForPoint(const WebCore::Frame&, const WebCore::IntPoint&, bool isInteractingWithFocusedElement);
1283     RefPtr<WebCore::Range> rangeForGranularityAtPoint(WebCore::Frame&, const WebCore::IntPoint&, uint32_t granularity, bool isInteractingWithFocusedElement);
1284     void setFocusedFrameBeforeSelectingTextAtLocation(const WebCore::IntPoint&);
1285     void dispatchSyntheticMouseEventsForSelectionGesture(SelectionTouch, const WebCore::IntPoint&);
1286
1287     void sendPositionInformation(InteractionInformationAtPosition&&);
1288     InteractionInformationAtPosition positionInformation(const InteractionInformationRequest&);
1289     RefPtr<ShareableBitmap> shareableBitmapSnapshotForNode(WebCore::Element&);
1290     WebAutocorrectionContext autocorrectionContext();
1291     bool applyAutocorrectionInternal(const String& correction, const String& originalText);
1292     bool shouldIgnoreMetaViewport() const;
1293 #endif
1294 #if ENABLE(TEXT_AUTOSIZING)
1295     void textAutoSizingAdjustmentTimerFired();
1296     void resetTextAutosizing();
1297     void resetIdempotentTextAutosizingIfNeeded(double previousInitialScale);
1298 #endif
1299
1300 #if ENABLE(VIEWPORT_RESIZING)
1301     void scheduleShrinkToFitContent();
1302     void shrinkToFitContentTimerFired();
1303     bool immediatelyShrinkToFitContent();
1304 #endif
1305
1306 #if PLATFORM(IOS_FAMILY) && ENABLE(DATA_INTERACTION)
1307     void requestDragStart(const WebCore::IntPoint& clientPosition, const WebCore::IntPoint& globalPosition, uint64_t allowedActions);
1308     void requestAdditionalItemsForDragSession(const WebCore::IntPoint& clientPosition, const WebCore::IntPoint& globalPosition, uint64_t allowedActions);
1309     void insertDroppedImagePlaceholders(const Vector<WebCore::IntSize>&, CompletionHandler<void(const Vector<WebCore::IntRect>&, Optional<WebCore::TextIndicatorData>)>&& reply);
1310     void computeAndSendEditDragSnapshot();
1311 #endif
1312
1313 #if !PLATFORM(COCOA) && !PLATFORM(WPE)
1314     static const char* interpretKeyEvent(const WebCore::KeyboardEvent*);
1315 #endif
1316
1317     bool performDefaultBehaviorForKeyEvent(const WebKeyboardEvent&);
1318
1319 #if PLATFORM(MAC)
1320     bool executeKeypressCommandsInternal(const Vector<WebCore::KeypressCommand>&, WebCore::KeyboardEvent*);
1321 #endif
1322
1323     void testProcessIncomingSyncMessagesWhenWaitingForSyncReply(Messages::WebPage::TestProcessIncomingSyncMessagesWhenWaitingForSyncReplyDelayedReply&&);
1324
1325     void updateDrawingAreaLayerTreeFreezeState();
1326     bool markLayersVolatileImmediatelyIfPossible();
1327     void layerVolatilityTimerFired();
1328     void callVolatilityCompletionHandlers(bool succeeded);
1329
1330     String sourceForFrame(WebFrame*);
1331
1332     void loadDataImpl(uint64_t navigationID, bool shouldTreatAsContinuingLoad, Optional<WebsitePoliciesData>&&, Ref<WebCore::SharedBuffer>&&, const String& MIMEType, const String& encodingName, const URL& baseURL, const URL& failingURL, const UserData&, WebCore::ShouldOpenExternalURLsPolicy = WebCore::ShouldOpenExternalURLsPolicy::ShouldNotAllow);
1333
1334     // Actions
1335     void tryClose();
1336     void platformDidReceiveLoadParameters(const LoadParameters&);
1337     void loadRequest(LoadParameters&&);
1338     NO_RETURN void loadRequestWaitingForPID(LoadParameters&&, URL&&, WebPageProxyIdentifier);
1339     void loadData(LoadParameters&&);
1340     void loadAlternateHTML(LoadParameters&&);
1341     void navigateToPDFLinkWithSimulatedClick(const String& url, WebCore::IntPoint documentPoint, WebCore::IntPoint screenPoint);
1342     void reload(uint64_t navigationID, uint32_t reloadOptions, SandboxExtension::Handle&&);
1343     void goToBackForwardItem(uint64_t navigationID, const WebCore::BackForwardItemIdentifier&, WebCore::FrameLoadType, WebCore::ShouldTreatAsContinuingLoad, Optional<WebsitePoliciesData>&&);
1344     void tryRestoreScrollPosition();
1345     void setInitialFocus(bool forward, bool isKeyboardEventValid, const WebKeyboardEvent&, CallbackID);
1346     void updateIsInWindow(bool isInitialState = false);
1347     void visibilityDidChange();
1348     void setActivityState(OptionSet<WebCore::ActivityState::Flag>, ActivityStateChangeID, const Vector<CallbackID>& callbackIDs);
1349     void validateCommand(const String&, CallbackID);
1350     void executeEditCommand(const String&, const String&);
1351     void setEditable(bool);
1352
1353     void didChangeSelectionOrOverflowScrollPosition();
1354
1355     void increaseListLevel();
1356     void decreaseListLevel();
1357     void changeListType();
1358
1359     void setBaseWritingDirection(WebCore::WritingDirection);
1360
1361     void setNeedsFontAttributes(bool);
1362
1363     void mouseEvent(const WebMouseEvent&);
1364     void keyEvent(const WebKeyboardEvent&);
1365
1366 #if ENABLE(IOS_TOUCH_EVENTS)
1367     void touchEventSync(const WebTouchEvent&, CompletionHandler<void(bool)>&&);
1368     void resetPotentialTapSecurityOrigin();
1369     void updatePotentialTapSecurityOrigin(const WebTouchEvent&, bool wasHandled);
1370 #elif ENABLE(TOUCH_EVENTS)
1371     void touchEvent(const WebTouchEvent&);
1372 #endif
1373
1374 #if ENABLE(POINTER_EVENTS)
1375     void cancelPointer(WebCore::PointerID, const WebCore::IntPoint&);
1376     void touchWithIdentifierWasRemoved(WebCore::PointerID);
1377 #endif
1378
1379 #if ENABLE(CONTEXT_MENUS)
1380     void contextMenuHidden() { m_isShowingContextMenu = false; }
1381 #endif
1382 #if ENABLE(CONTEXT_MENU_EVENT)
1383     void contextMenuForKeyEvent();
1384 #endif
1385
1386     static bool scroll(WebCore::Page*, WebCore::ScrollDirection, WebCore::ScrollGranularity);
1387     static bool logicalScroll(WebCore::Page*, WebCore::ScrollLogicalDirection, WebCore::ScrollGranularity);
1388
1389     void loadURLInFrame(URL&&, const String& referrer, WebCore::FrameIdentifier);
1390     void loadDataInFrame(IPC::DataReference&&, String&& MIMEType, String&& encodingName, URL&& baseURL, WebCore::FrameIdentifier);
1391
1392     enum class WasRestoredByAPIRequest { No, Yes };
1393     void restoreSessionInternal(const Vector<BackForwardListItemState>&, WasRestoredByAPIRequest, WebBackForwardListProxy::OverwriteExistingItem);
1394     void restoreSession(const Vector<BackForwardListItemState>&);
1395     void didRemoveBackForwardItem(const WebCore::BackForwardItemIdentifier&);
1396     void updateBackForwardListForReattach(const Vector<WebKit::BackForwardListItemState>&);
1397     void setCurrentHistoryItemForReattach(WebKit::BackForwardListItemState&&);
1398
1399     void requestFontAttributesAtSelectionStart(CallbackID);
1400
1401 #if ENABLE(REMOTE_INSPECTOR)
1402     void setIndicating(bool);
1403 #endif
1404
1405     void setBackgroundColor(const Optional<WebCore::Color>&);
1406
1407 #if PLATFORM(COCOA)
1408     void setTopContentInsetFenced(float, IPC::Attachment);
1409 #endif
1410     void setTopContentInset(float);
1411
1412     void viewWillStartLiveResize();
1413     void viewWillEndLiveResize();
1414
1415     void getContentsAsString(CallbackID);
1416 #if PLATFORM(COCOA)
1417     void getContentsAsAttributedString(CompletionHandler<void(const AttributedString&)>&&);
1418 #endif
1419 #if ENABLE(MHTML)
1420     void getContentsAsMHTMLData(CallbackID);
1421 #endif
1422     void getMainResourceDataOfFrame(WebCore::FrameIdentifier, CallbackID);
1423     void getResourceDataFromFrame(WebCore::FrameIdentifier, const String& resourceURL, CallbackID);
1424     void getRenderTreeExternalRepresentation(CallbackID);
1425     void getSelectionOrContentsAsString(CallbackID);
1426     void getSelectionAsWebArchiveData(CallbackID);
1427     void getSourceForFrame(WebCore::FrameIdentifier, CallbackID);
1428     void getWebArchiveOfFrame(WebCore::FrameIdentifier, CallbackID);
1429     void runJavaScript(WebFrame*, const String&, bool forceUserGesture, const Optional<String>& worldName, CallbackID);
1430     void runJavaScriptInMainFrameScriptWorld(const String&, bool forceUserGesture, const Optional<String>& worldName, CallbackID);
1431     void runJavaScriptInFrame(WebCore::FrameIdentifier, const String&, bool forceUserGesture, CallbackID);
1432     void forceRepaint(CallbackID);
1433     void takeSnapshot(WebCore::IntRect snapshotRect, WebCore::IntSize bitmapSize, uint32_t options, CallbackID);
1434
1435     void preferencesDidChange(const WebPreferencesStore&);
1436     void updatePreferences(const WebPreferencesStore&);
1437     void updatePreferencesGenerated(const WebPreferencesStore&);
1438
1439 #if PLATFORM(IOS_FAMILY)
1440     bool parentProcessHasServiceWorkerEntitlement() const;
1441 #else
1442     bool parentProcessHasServiceWorkerEntitlement() const { return true; }
1443 #endif
1444
1445     void didReceivePolicyDecision(WebCore::FrameIdentifier, uint64_t listenerID, WebCore::PolicyCheckIdentifier, WebCore::PolicyAction, uint64_t navigationID, const DownloadID&, Optional<WebsitePoliciesData>&&);
1446     void continueWillSubmitForm(WebCore::FrameIdentifier, uint64_t listenerID);
1447     void setUserAgent(const String&);
1448     void setCustomTextEncodingName(const String&);
1449     void suspendActiveDOMObjectsAndAnimations();
1450     void resumeActiveDOMObjectsAndAnimations();
1451
1452 #if PLATFORM(COCOA)
1453     void performDictionaryLookupAtLocation(const WebCore::FloatPoint&);
1454     void performDictionaryLookupOfCurrentSelection();
1455     void performDictionaryLookupForRange(WebCore::Frame&, WebCore::Range&, NSDictionary *options, WebCore::TextIndicatorPresentationTransition);
1456     WebCore::DictionaryPopupInfo dictionaryPopupInfoForRange(WebCore::Frame&, WebCore::Range&, NSDictionary *options, WebCore::TextIndicatorPresentationTransition);
1457 #if ENABLE(PDFKIT_PLUGIN)
1458     WebCore::DictionaryPopupInfo dictionaryPopupInfoForSelectionInPDFPlugin(PDFSelection *, PDFPlugin&, NSDictionary *options, WebCore::TextIndicatorPresentationTransition);
1459 #endif
1460
1461     void windowAndViewFramesChanged(const WebCore::FloatRect& windowFrameInScreenCoordinates, const WebCore::FloatRect& windowFrameInUnflippedScreenCoordinates, const WebCore::FloatRect& viewFrameInWindowCoordinates, const WebCore::FloatPoint& accessibilityViewCoordinates);
1462
1463     RetainPtr<PDFDocument> pdfDocumentForPrintingFrame(WebCore::Frame*);
1464     void computePagesForPrintingPDFDocument(WebCore::FrameIdentifier, const PrintInfo&, Vector<WebCore::IntRect>& resultPageRects);
1465     void drawPDFDocument(CGContextRef, PDFDocument *, const PrintInfo&, const WebCore::IntRect&);
1466     void drawPagesToPDFFromPDFDocument(CGContextRef, PDFDocument *, const PrintInfo&, uint32_t first, uint32_t count);
1467 #endif
1468
1469     void setMainFrameIsScrollable(bool);
1470
1471     void unapplyEditCommand(WebUndoStepID commandID);
1472     void reapplyEditCommand(WebUndoStepID commandID);
1473     void didRemoveEditCommand(WebUndoStepID commandID);
1474
1475     void findString(const String&, uint32_t findOptions, uint32_t maxMatchCount, Optional<CallbackID>);
1476     void findStringMatches(const String&, uint32_t findOptions, uint32_t maxMatchCount);
1477     void getImageForFindMatch(uint32_t matchIndex);
1478     void selectFindMatch(uint32_t matchIndex);
1479     void indicateFindMatch(uint32_t matchIndex);
1480     void hideFindUI();
1481     void countStringMatches(const String&, uint32_t findOptions, uint32_t maxMatchCount);
1482     void replaceMatches(const Vector<uint32_t>& matchIndices, const String& replacementText, bool selectionOnly, CallbackID);
1483
1484 #if USE(COORDINATED_GRAPHICS)
1485     void sendViewportAttributesChanged(const WebCore::ViewportArguments&);
1486 #endif
1487
1488     void didChangeSelectedIndexForActivePopupMenu(int32_t newIndex);
1489     void setTextForActivePopupMenu(int32_t index);
1490
1491 #if PLATFORM(GTK)
1492     void failedToShowPopupMenu();
1493 #endif
1494
1495     void didChooseFilesForOpenPanel(const Vector<String>&);
1496     void didCancelForOpenPanel();
1497
1498 #if PLATFORM(IOS_FAMILY)
1499     void didChooseFilesForOpenPanelWithDisplayStringAndIcon(const Vector<String>&, const String& displayString, const IPC::DataReference& iconData);
1500     bool isTransparentOrFullyClipped(const WebCore::Element&) const;
1501 #endif
1502
1503 #if ENABLE(SANDBOX_EXTENSIONS)
1504     void extendSandboxForFilesFromOpenPanel(SandboxExtension::HandleArray&&);
1505 #endif
1506
1507     void didReceiveGeolocationPermissionDecision(uint64_t geolocationID, bool allowed);
1508
1509     void didReceiveNotificationPermissionDecision(uint64_t notificationID, bool allowed);
1510
1511 #if ENABLE(MEDIA_STREAM)
1512     void userMediaAccessWasGranted(uint64_t userMediaID, WebCore::CaptureDevice&& audioDeviceUID, WebCore::CaptureDevice&& videoDeviceUID, String&& mediaDeviceIdentifierHashSalt, CompletionHandler<void()>&&);
1513     void userMediaAccessWasDenied(uint64_t userMediaID, uint64_t reason, String&& invalidConstraint);
1514
1515 #endif
1516
1517 #if ENABLE(WEB_RTC)
1518     void disableICECandidateFiltering();
1519     void enableICECandidateFiltering();
1520 #endif
1521
1522 #if ENABLE(WEB_RTC) && USE(LIBWEBRTC)
1523     void disableEnumeratingAllNetworkInterfaces();
1524     void enableEnumeratingAllNetworkInterfaces();
1525 #endif
1526
1527     void stopAllMediaPlayback();
1528     void suspendAllMediaPlayback();
1529     void resumeAllMediaPlayback();
1530
1531     void advanceToNextMisspelling(bool startBeforeSelection);
1532     void changeSpellingToWord(const String& word);
1533
1534 #if USE(APPKIT)
1535     void uppercaseWord();
1536     void lowercaseWord();
1537     void capitalizeWord();
1538 #endif
1539
1540     bool shouldDispatchSyntheticMouseEventsWhenModifyingSelection() const;
1541     void platformDidSelectAll();
1542
1543 #if ENABLE(CONTEXT_MENUS)
1544     void didSelectItemFromActiveContextMenu(const WebContextMenuItemData&);
1545 #endif
1546
1547     void changeSelectedIndex(int32_t index);
1548     void setCanStartMediaTimerFired();
1549
1550     static bool platformCanHandleRequest(const WebCore::ResourceRequest&);
1551
1552     static PluginView* focusedPluginViewForFrame(WebCore::Frame&);
1553
1554     void reportUsedFeatures();
1555
1556     void updateWebsitePolicies(WebsitePoliciesData&&);
1557
1558     void changeFont(WebCore::FontChanges&&);
1559     void changeFontAttributes(WebCore::FontAttributeChanges&&);
1560
1561 #if PLATFORM(MAC)
1562     void performImmediateActionHitTestAtLocation(WebCore::FloatPoint);
1563     std::tuple<RefPtr<WebCore::Range>, NSDictionary *> lookupTextAtLocation(WebCore::FloatPoint);
1564     void immediateActionDidUpdate();
1565     void immediateActionDidCancel();
1566     void immediateActionDidComplete();
1567
1568     void dataDetectorsDidPresentUI(WebCore::PageOverlay::PageOverlayID);
1569     void dataDetectorsDidChangeUI(WebCore::PageOverlay::PageOverlayID);
1570     void dataDetectorsDidHideUI(WebCore::PageOverlay::PageOverlayID);
1571
1572     void handleAcceptedCandidate(WebCore::TextCheckingResult);
1573 #endif
1574
1575 #if PLATFORM(COCOA)
1576     void requestActiveNowPlayingSessionInfo(CallbackID);
1577     RetainPtr<NSData> accessibilityRemoteTokenData() const;
1578     void accessibilityTransferRemoteToken(RetainPtr<NSData>);
1579 #endif
1580
1581     void setShouldDispatchFakeMouseMoveEvents(bool dispatch) { m_shouldDispatchFakeMouseMoveEvents = dispatch; }
1582
1583 #if ENABLE(WIRELESS_PLAYBACK_TARGET) && !PLATFORM(IOS_FAMILY)
1584     void playbackTargetSelected(uint64_t, const WebCore::MediaPlaybackTargetContext& outputDevice) const;
1585     void playbackTargetAvailabilityDidChange(uint64_t, bool);
1586     void setShouldPlayToPlaybackTarget(uint64_t, bool);
1587     void playbackTargetPickerWasDismissed(uint64_t);
1588 #endif
1589
1590     void clearWheelEventTestMonitor();
1591
1592     void setShouldScaleViewToFitDocument(bool);
1593
1594     void pageStoppedScrolling();
1595
1596 #if ENABLE(VIDEO) && USE(GSTREAMER)
1597     void didEndRequestInstallMissingMediaPlugins(uint32_t result);
1598 #endif
1599
1600     void setUserInterfaceLayoutDirection(uint32_t);
1601
1602     bool canPluginHandleResponse(const WebCore::ResourceResponse&);
1603
1604     void simulateDeviceOrientationChange(double alpha, double beta, double gamma);
1605
1606 #if USE(SYSTEM_PREVIEW)
1607     void systemPreviewActionTriggered(WebCore::SystemPreviewInfo, const String& message);
1608 #endif
1609
1610 #if ENABLE(SPEECH_SYNTHESIS)
1611     void speakingErrorOccurred();
1612     void boundaryEventOccurred(bool wordBoundary, unsigned charIndex);
1613     void voicesDidChange();
1614 #endif
1615
1616     void frameBecameRemote(WebCore::FrameIdentifier, WebCore::GlobalFrameIdentifier&& remoteFrameIdentifier, WebCore::GlobalWindowIdentifier&& remoteWindowIdentifier);
1617
1618     void registerURLSchemeHandler(uint64_t identifier, const String& scheme);
1619
1620     void urlSchemeTaskDidPerformRedirection(uint64_t handlerIdentifier, uint64_t taskIdentifier, WebCore::ResourceResponse&&, WebCore::ResourceRequest&&);
1621     void urlSchemeTaskDidReceiveResponse(uint64_t handlerIdentifier, uint64_t taskIdentifier, const WebCore::ResourceResponse&);
1622     void urlSchemeTaskDidReceiveData(uint64_t handlerIdentifier, uint64_t taskIdentifier, const IPC::DataReference&);
1623     void urlSchemeTaskDidComplete(uint64_t handlerIdentifier, uint64_t taskIdentifier, const WebCore::ResourceError&);
1624
1625     void setIsSuspended(bool);
1626
1627     RefPtr<WebImage> snapshotAtSize(const WebCore::IntRect&, const WebCore::IntSize& bitmapSize, SnapshotOptions);
1628     RefPtr<WebImage> snapshotNode(WebCore::Node&, SnapshotOptions, unsigned maximumPixelCount = std::numeric_limits<unsigned>::max());
1629 #if PLATFORM(COCOA)
1630     RetainPtr<CFDataRef> pdfSnapshotAtSize(WebCore::IntRect, WebCore::IntSize bitmapSize, SnapshotOptions);
1631 #endif
1632
1633 #if ENABLE(ATTACHMENT_ELEMENT)
1634     RefPtr<WebCore::HTMLAttachmentElement> attachmentElementWithIdentifier(const String& identifier) const;
1635 #endif
1636
1637     bool canShowMIMEType(const String&, const Function<bool(const String&, WebCore::PluginData::AllowedPluginTypes)>& supportsPlugin) const;
1638
1639     void cancelGesturesBlockedOnSynchronousReplies();
1640
1641     bool shouldDispatchUpdateAfterFocusingElement(const WebCore::Element&) const;
1642
1643     void updateMockAccessibilityElementAfterCommittingLoad();
1644
1645     void paintSnapshotAtSize(const WebCore::IntRect&, const WebCore::IntSize&, SnapshotOptions, WebCore::Frame&, WebCore::FrameView&, WebCore::GraphicsContext&);
1646
1647 #if PLATFORM(GTK) || PLATFORM(WPE)
1648     void sendMessageToWebExtension(UserMessage&&);
1649     void sendMessageToWebExtensionWithReply(UserMessage&&, CompletionHandler<void(UserMessage&&)>&&);
1650 #endif
1651
1652     WebCore::PageIdentifier m_identifier;
1653
1654     std::unique_ptr<WebCore::Page> m_page;
1655     RefPtr<WebFrame> m_mainFrame;
1656
1657     RefPtr<WebPageGroupProxy> m_pageGroup;
1658
1659     String m_userAgent;
1660
1661     WebCore::IntSize m_viewSize;
1662     std::unique_ptr<DrawingArea> m_drawingArea;
1663
1664     HashSet<PluginView*> m_pluginViews;
1665     bool m_hasSeenPlugin { false };
1666
1667     HashMap<uint64_t, RefPtr<WebCore::TextCheckingRequest>> m_pendingTextCheckingRequestMap;
1668
1669     bool m_useFixedLayout { false };
1670
1671     WebCore::Color m_underlayColor;
1672
1673     bool m_isInRedo { false };
1674     bool m_isClosed { false };
1675     bool m_tabToLinks { false };
1676
1677     bool m_asynchronousPluginInitializationEnabled { false };
1678     bool m_asynchronousPluginInitializationEnabledForAllPlugins { false };
1679     bool m_artificialPluginInitializationDelayEnabled { false };
1680     bool m_scrollingPerformanceLoggingEnabled { false };
1681     bool m_mainFrameIsScrollable { true };
1682
1683     bool m_alwaysShowsHorizontalScroller { false };
1684     bool m_alwaysShowsVerticalScroller { false };
1685
1686 #if PLATFORM(IOS_FAMILY)
1687     bool m_ignoreViewportScalingConstraints { false };
1688 #endif
1689
1690 #if ENABLE(PRIMARY_SNAPSHOTTED_PLUGIN_HEURISTIC)
1691     bool m_readyToFindPrimarySnapshottedPlugin { false };
1692     bool m_didFindPrimarySnapshottedPlugin { false };
1693     unsigned m_numberOfPrimarySnapshotDetectionAttempts { 0 };
1694     String m_primaryPlugInPageOrigin;
1695     String m_primaryPlugInOrigin;
1696     String m_primaryPlugInMimeType;
1697     RunLoop::Timer<WebPage> m_determinePrimarySnapshottedPlugInTimer;
1698 #endif
1699
1700     // The layer hosting mode.
1701     LayerHostingMode m_layerHostingMode;
1702
1703 #if PLATFORM(COCOA)
1704     bool m_pdfPluginEnabled { false };
1705     bool m_hasCachedWindowFrame { false };
1706
1707     // The frame of the containing window in screen coordinates.
1708     WebCore::FloatRect m_windowFrameInScreenCoordinates;
1709
1710     // The frame of the containing window in unflipped screen coordinates.
1711     WebCore::FloatRect m_windowFrameInUnflippedScreenCoordinates;
1712
1713     // The frame of the view in window coordinates.
1714     WebCore::FloatRect m_viewFrameInWindowCoordinates;
1715
1716     // The accessibility position of the view.
1717     WebCore::FloatPoint m_accessibilityPosition;
1718
1719     RetainPtr<WKAccessibilityWebPageObject> m_mockAccessibilityElement;
1720 #endif
1721
1722 #if ENABLE(PLATFORM_DRIVEN_TEXT_CHECKING)
1723     UniqueRef<TextCheckingControllerProxy> m_textCheckingControllerProxy;
1724 #endif
1725
1726 #if PLATFORM(COCOA) || PLATFORM(GTK)
1727     std::unique_ptr<ViewGestureGeometryCollector> m_viewGestureGeometryCollector;
1728 #endif
1729
1730 #if PLATFORM(COCOA)
1731     RetainPtr<NSDictionary> m_dataDetectionContext;
1732 #endif
1733
1734 #if ENABLE(ACCESSIBILITY) && USE(ATK)
1735     GRefPtr<AtkObject> m_accessibilityObject;
1736 #endif
1737
1738 #if !PLATFORM(IOS_FAMILY)
1739     RefPtr<PageBanner> m_headerBanner;
1740     RefPtr<PageBanner> m_footerBanner;
1741 #endif
1742
1743     RunLoop::Timer<WebPage> m_setCanStartMediaTimer;
1744     bool m_mayStartMediaWhenInWindow { false };
1745
1746     HashMap<WebUndoStepID, RefPtr<WebUndoStep>> m_undoStepMap;
1747
1748 #if ENABLE(CONTEXT_MENUS)
1749     std::unique_ptr<API::InjectedBundle::PageContextMenuClient> m_contextMenuClient;
1750 #endif
1751     std::unique_ptr<API::InjectedBundle::EditorClient> m_editorClient;
1752     std::unique_ptr<API::InjectedBundle::FormClient> m_formClient;
1753     std::unique_ptr<API::InjectedBundle::PageLoaderClient> m_loaderClient;
1754     InjectedBundlePagePolicyClient m_policyClient;
1755     std::unique_ptr<API::InjectedBundle::ResourceLoadClient> m_resourceLoadClient;
1756     std::unique_ptr<API::InjectedBundle::PageUIClient> m_uiClient;
1757 #if ENABLE(FULLSCREEN_API)
1758     InjectedBundlePageFullScreenClient m_fullScreenClient;
1759 #endif
1760
1761     UniqueRef<FindController> m_findController;
1762
1763     RefPtr<WebInspector> m_inspector;
1764     RefPtr<WebInspectorUI> m_inspectorUI;
1765     RefPtr<RemoteWebInspectorUI> m_remoteInspectorUI;
1766     std::unique_ptr<WebPageInspectorTargetController> m_inspectorTargetController;
1767
1768 #if (PLATFORM(IOS_FAMILY) && HAVE(AVKIT)) || (PLATFORM(MAC) && ENABLE(VIDEO_PRESENTATION_MODE))
1769     RefPtr<PlaybackSessionManager> m_playbackSessionManager;
1770     RefPtr<VideoFullscreenManager> m_videoFullscreenManager;
1771 #endif
1772
1773 #if PLATFORM(IOS_FAMILY)
1774     bool m_allowsMediaDocumentInlinePlayback { false };
1775     RefPtr<WebCore::Range> m_startingGestureRange;
1776 #endif
1777
1778 #if ENABLE(FULLSCREEN_API)
1779     RefPtr<WebFullScreenManager> m_fullScreenManager;
1780 #endif
1781
1782     RefPtr<WebPopupMenu> m_activePopupMenu;
1783
1784 #if ENABLE(CONTEXT_MENUS)
1785     RefPtr<WebContextMenu> m_contextMenu;
1786 #endif
1787
1788 #if ENABLE(INPUT_TYPE_COLOR)
1789     WebColorChooser* m_activeColorChooser { nullptr };
1790 #endif
1791
1792 #if ENABLE(DATALIST_ELEMENT)
1793     WeakPtr<WebDataListSuggestionPicker> m_activeDataListSuggestionPicker;
1794 #endif
1795
1796     RefPtr<WebOpenPanelResultListener> m_activeOpenPanelResultListener;
1797     RefPtr<NotificationPermissionRequestManager> m_notificationPermissionRequestManager;
1798
1799     Ref<WebUserContentController> m_userContentController;
1800
1801 #if ENABLE(GEOLOCATION)
1802     UniqueRef<GeolocationPermissionRequestManager> m_geolocationPermissionRequestManager;
1803 #endif
1804
1805 #if ENABLE(MEDIA_STREAM)
1806     UniqueRef<UserMediaPermissionRequestManager> m_userMediaPermissionRequestManager;
1807 #endif
1808
1809     std::unique_ptr<WebCore::PrintContext> m_printContext;
1810 #if PLATFORM(GTK)
1811     RefPtr<WebPrintOperationGtk> m_printOperation;
1812 #endif
1813
1814     SandboxExtensionTracker m_sandboxExtensionTracker;
1815
1816     RefPtr<SandboxExtension> m_pendingDropSandboxExtension;
1817     Vector<RefPtr<SandboxExtension>> m_pendingDropExtensionsForFileUpload;
1818
1819     PAL::HysteresisActivity m_pageScrolledHysteresis;
1820
1821     bool m_canRunBeforeUnloadConfirmPanel { false };
1822
1823     bool m_canRunModal { false };
1824     bool m_isRunningModal { false };
1825
1826 #if ENABLE(DRAG_SUPPORT)
1827     bool m_isStartingDrag { false };
1828     WebCore::DragSourceAction m_allowedDragSourceActions { WebCore::DragSourceActionAny };
1829 #endif
1830
1831 #if ENABLE(DRAG_SUPPORT) && PLATFORM(IOS_FAMILY)
1832     HashSet<RefPtr<WebCore::HTMLImageElement>> m_pendingImageElementsForDropSnapshot;
1833     RefPtr<WebCore::Range> m_rangeForDropSnapshot;
1834 #endif
1835
1836     bool m_cachedMainFrameIsPinnedToLeftSide { true };
1837     bool m_cachedMainFrameIsPinnedToRightSide { true };
1838     bool m_cachedMainFrameIsPinnedToTopSide { true };
1839     bool m_cachedMainFrameIsPinnedToBottomSide { true };
1840     bool m_canShortCircuitHorizontalWheelEvents { false };
1841     bool m_hasWheelEventHandlers { false };
1842
1843     unsigned m_cachedPageCount { 0 };
1844
1845     HashSet<unsigned long> m_trackedNetworkResourceRequestIdentifiers;
1846
1847     WebCore::IntSize m_minimumSizeForAutoLayout;
1848     bool m_autoSizingShouldExpandToViewHeight { false };
1849     Optional<WebCore::IntSize> m_viewportSizeForCSSViewportUnits;
1850
1851     bool m_userIsInteracting { false };
1852     bool m_hasEverFocusedElementDueToUserInteractionSincePageTransition { false };
1853     bool m_isTouchBarUpdateSupressedForHiddenContentEditable { false };
1854     bool m_isNeverRichlyEditableForTouchBar { false };
1855     OptionSet<WebCore::ActivityState::Flag> m_lastActivityStateChanges;
1856
1857 #if ENABLE(CONTEXT_MENUS)
1858     bool m_isShowingContextMenu { false };
1859 #endif
1860
1861     RefPtr<WebCore::Element> m_focusedElement;
1862     RefPtr<WebCore::Element> m_recentlyBlurredElement;
1863     bool m_hasPendingInputContextUpdateAfterBlurringAndRefocusingElement { false };
1864     bool m_hasPendingEditorStateUpdate { false };
1865
1866 #if ENABLE(IOS_TOUCH_EVENTS)
1867     CompletionHandler<void(bool)> m_pendingSynchronousTouchEventReply;
1868 #endif
1869
1870 #if PLATFORM(IOS_FAMILY)
1871     RefPtr<WebCore::Range> m_currentWordRange;
1872     RefPtr<WebCore::Node> m_interactionNode;
1873     WebCore::IntPoint m_lastInteractionLocation;
1874
1875     bool m_isShowingInputViewForFocusedElement { false };
1876
1877     enum SelectionAnchor { Start, End };
1878     SelectionAnchor m_selectionAnchor { Start };
1879
1880     RefPtr<WebCore::Node> m_potentialTapNode;
1881     WebCore::FloatPoint m_potentialTapLocation;
1882     RefPtr<WebCore::SecurityOrigin> m_potentialTapSecurityOrigin;
1883
1884     WebCore::ViewportConfiguration m_viewportConfiguration;
1885
1886     bool m_hasReceivedVisibleContentRectsAfterDidCommitLoad { false };
1887     bool m_hasRestoredExposedContentRectAfterDidCommitLoad { false };
1888     bool m_scaleWasSetByUIProcess { false };
1889     bool m_userHasChangedPageScaleFactor { false };
1890     bool m_hasStablePageScaleFactor { true };
1891     bool m_useTestingViewportConfiguration { false };
1892     bool m_isInStableState { true };
1893     bool m_forceAlwaysUserScalable { false };
1894     MonotonicTime m_oldestNonStableUpdateVisibleContentRectsTimestamp;
1895     Seconds m_estimatedLatency { 0 };
1896     WebCore::FloatSize m_screenSize;
1897     WebCore::FloatSize m_availableScreenSize;
1898     WebCore::FloatSize m_overrideScreenSize;
1899
1900     RefPtr<WebCore::Range> m_initialSelection;
1901     WebCore::VisibleSelection m_storedSelectionForAccessibility { WebCore::VisibleSelection() };
1902     WebCore::FloatSize m_maximumUnobscuredSize;
1903     int32_t m_deviceOrientation { 0 };
1904     bool m_keyboardIsAttached { false };
1905     bool m_canShowWhileLocked { false };
1906     bool m_inDynamicSizeUpdate { false };
1907     HashMap<std::pair<WebCore::IntSize, double>, WebCore::IntPoint> m_dynamicSizeUpdateHistory;
1908     RefPtr<WebCore::Node> m_pendingSyntheticClickNode;
1909     WebCore::FloatPoint m_pendingSyntheticClickLocation;
1910     WebCore::FloatRect m_previousExposedContentRect;
1911     OptionSet<WebKit::WebEvent::Modifier> m_pendingSyntheticClickModifiers;
1912     WebCore::PointerID m_pendingSyntheticClickPointerId { 0 };
1913     FocusedElementIdentifier m_currentFocusedElementIdentifier { 0 };
1914     Optional<DynamicViewportSizeUpdateID> m_pendingDynamicViewportSizeUpdateID;
1915     double m_lastTransactionPageScaleFactor { 0 };
1916     TransactionID m_lastTransactionIDWithScaleChange;
1917
1918     CompletionHandler<void(InteractionInformationAtPosition&&)> m_pendingSynchronousPositionInformationReply;
1919 #endif
1920
1921     WebCore::Timer m_layerVolatilityTimer;
1922     Vector<Function<void(bool)>> m_markLayersAsVolatileCompletionHandlers;
1923     bool m_isSuspendedUnderLock { false };
1924
1925     HashSet<String, ASCIICaseInsensitiveHash> m_mimeTypesWithCustomContentProviders;
1926     Optional<WebCore::Color> m_backgroundColor { WebCore::Color::white };
1927
1928     HashSet<unsigned> m_activeRenderingSuppressionTokens;
1929     unsigned m_maximumRenderingSuppressionToken { 0 };
1930
1931     WebCore::ScrollPinningBehavior m_scrollPinningBehavior { WebCore::DoNotPin };
1932     Optional<WebCore::ScrollbarOverlayStyle> m_scrollbarOverlayStyle;
1933
1934     bool m_useAsyncScrolling { false };
1935
1936     OptionSet<WebCore::ActivityState::Flag> m_activityState;
1937
1938     bool m_isAppNapEnabled { true };
1939     UserActivity m_userActivity;
1940
1941     uint64_t m_pendingNavigationID { 0 };
1942     Optional<WebsitePoliciesData> m_pendingWebsitePolicies;
1943
1944     bool m_mainFrameProgressCompleted { false };
1945     bool m_shouldDispatchFakeMouseMoveEvents { true };
1946     bool m_isEditorStateMissingPostLayoutData { false };
1947     bool m_isSelectingTextWhileInsertingAsynchronously { false };
1948
1949     enum class EditorStateIsContentEditable { No, Yes, Unset };
1950     mutable EditorStateIsContentEditable m_lastEditorStateWasContentEditable { EditorStateIsContentEditable::Unset };
1951
1952 #if PLATFORM(GTK)
1953     bool m_inputMethodEnabled { false };
1954 #endif
1955
1956 #if ENABLE(VIDEO) && USE(GSTREAMER)
1957     RefPtr<WebCore::MediaPlayerRequestInstallMissingPluginsCallback> m_installMediaPluginsCallback;
1958 #endif
1959
1960 #if USE(OS_STATE)
1961     WallTime m_loadCommitTime;
1962 #endif
1963
1964     WebCore::UserInterfaceLayoutDirection m_userInterfaceLayoutDirection { WebCore::UserInterfaceLayoutDirection::LTR };
1965
1966     const String m_overrideContentSecurityPolicy;
1967     const Optional<double> m_cpuLimit;
1968
1969 #if USE(WPE_RENDERER)
1970     IPC::Attachment m_hostFileDescriptor;
1971 #endif
1972
1973     HashMap<String, RefPtr<WebURLSchemeHandlerProxy>> m_schemeToURLSchemeHandlerProxyMap;
1974     HashMap<uint64_t, WebURLSchemeHandlerProxy*> m_identifierToURLSchemeHandlerProxyMap;
1975
1976     HashMap<uint64_t, Function<void(bool granted)>> m_storageAccessResponseCallbackMap;
1977     HashMap<ShareSheetCallbackID, Function<void(bool completed)>> m_shareSheetResponseCallbackMap;
1978
1979 #if ENABLE(APPLICATION_MANIFEST)
1980     HashMap<uint64_t, uint64_t> m_applicationManifestFetchCallbackMap;
1981 #endif
1982
1983     OptionSet<LayerTreeFreezeReason> m_layerTreeFreezeReasons;
1984     bool m_isSuspended { false };
1985     bool m_needsFontAttributes { false };
1986     bool m_firstFlushAfterCommit { false };
1987 #if PLATFORM(COCOA)
1988     WeakPtr<WebRemoteObjectRegistry> m_remoteObjectRegistry;
1989 #endif
1990     WebPageProxyIdentifier m_webPageProxyIdentifier;
1991     WebCore::IntSize m_lastSentIntrinsicContentSize;
1992 #if ENABLE(VIEWPORT_RESIZING)
1993     WebCore::DeferrableOneShotTimer m_shrinkToFitContentTimer;
1994 #endif
1995 #if HAVE(VISIBILITY_PROPAGATION_VIEW)
1996     std::unique_ptr<LayerHostingContext> m_contextForVisibilityPropagation;
1997 #endif
1998 #if ENABLE(TEXT_AUTOSIZING)
1999     WebCore::Timer m_textAutoSizingAdjustmentTimer;
2000 #endif
2001 };
2002
2003 #if !PLATFORM(IOS_FAMILY)
2004 inline void WebPage::platformWillPerformEditingCommand() { }
2005 #endif
2006
2007 } // namespace WebKit
2008