Source/WebKit2/UIProcess/WebPageProxy.h

   1 /*
   2  * Copyright (C) 2010, 2011, 2014-2015 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 #ifndef WebPageProxy_h
  27 #define WebPageProxy_h
  28
  29 #include "APIObject.h"
  30 #include "APISession.h"
  31 #include "AssistedNodeInformation.h"
  32 #include "AutoCorrectionCallback.h"
  33 #include "Connection.h"
  34 #include "ContextMenuContextData.h"
  35 #include "DragControllerAction.h"
  36 #include "DrawingAreaProxy.h"
  37 #include "EditingRange.h"
  38 #include "EditorState.h"
  39 #include "GeolocationPermissionRequestManagerProxy.h"
  40 #include "InteractionInformationAtPosition.h"
  41 #include "LayerTreeContext.h"
  42 #include "MessageSender.h"
  43 #include "NotificationPermissionRequestManagerProxy.h"
  44 #include "PageLoadState.h"
  45 #include "PlatformProcessIdentifier.h"
  46 #include "ProcessThrottler.h"
  47 #include "SandboxExtension.h"
  48 #include "ShareableBitmap.h"
  49 #include "UserMediaPermissionRequestManagerProxy.h"
  50 #include "VisibleContentRectUpdateInfo.h"
  51 #include "WKBase.h"
  52 #include "WKPagePrivate.h"
  53 #include "WebColorPicker.h"
  54 #include "WebContextMenuItemData.h"
  55 #include "WebCoreArgumentCoders.h"
  56 #include "WebFindClient.h"
  57 #include "WebFrameProxy.h"
  58 #include "WebPageCreationParameters.h"
  59 #include "WebPageDiagnosticLoggingClient.h"
  60 #include "WebPageInjectedBundleClient.h"
  61 #include "WebPreferences.h"
  62 #include <WebCore/AlternativeTextClient.h> // FIXME: Needed by WebPageProxyMessages.h for DICTATION_ALTERNATIVES.
  63 #include "WebPageProxyMessages.h"
  64 #include "WebPopupMenuProxy.h"
  65 #include "WebProcessLifetimeTracker.h"
  66 #include <WebCore/Color.h>
  67 #include <WebCore/DragActions.h>
  68 #include <WebCore/FrameLoaderTypes.h>
  69 #include <WebCore/HitTestResult.h>
  70 #include <WebCore/MediaProducer.h>
  71 #include <WebCore/Page.h>
  72 #include <WebCore/PlatformScreen.h>
  73 #include <WebCore/ScrollTypes.h>
  74 #include <WebCore/TextChecking.h>
  75 #include <WebCore/TextGranularity.h>
  76 #include <WebCore/ViewState.h>
  77 #include <WebCore/VisibleSelection.h>
  78 #include <memory>
  79 #include <wtf/HashMap.h>
  80 #include <wtf/HashSet.h>
  81 #include <wtf/PassRefPtr.h>
  82 #include <wtf/Ref.h>
  83 #include <wtf/RefPtr.h>
  84 #include <wtf/Vector.h>
  85 #include <wtf/text/WTFString.h>
  86
  87 #if ENABLE(DRAG_SUPPORT)
  88 #include <WebCore/DragActions.h>
  89 #endif
  90
  91 #if ENABLE(TOUCH_EVENTS)
  92 #include "NativeWebTouchEvent.h"
  93 #endif
  94
  95 #if PLATFORM(EFL)
  96 #include "WKPageEfl.h"
  97 #include "WebUIPopupMenuClient.h"
  98 #include <Evas.h>
  99 #endif
 100
 101 #if PLATFORM(COCOA)
 102 #include "LayerRepresentation.h"
 103 #endif
 104
 105 #if PLATFORM(MAC)
 106 #include "AttributedString.h"
 107 #endif
 108
 109 #if PLATFORM(IOS)
 110 #include "ProcessThrottler.h"
 111 #endif
 112
 113 #if PLATFORM(GTK)
 114 #include "ArgumentCodersGtk.h"
 115 #endif
 116
 117 #if ENABLE(WIRELESS_PLAYBACK_TARGET) && !PLATFORM(IOS)
 118 #include <WebCore/MediaPlaybackTargetPicker.h>
 119 #include <WebCore/WebMediaSessionManagerClient.h>
 120 #endif
 121
 122 #if ENABLE(MEDIA_SESSION)
 123 namespace WebCore {
 124 class MediaSessionMetadata;
 125 }
 126 #endif
 127
 128 namespace API {
 129 class ContextMenuClient;
 130 class FindClient;
 131 class FormClient;
 132 class HistoryClient;
 133 class LoaderClient;
 134 class Navigation;
 135 class NavigationClient;
 136 class PolicyClient;
 137 class UIClient;
 138 class URLRequest;
 139 }
 140
 141 namespace IPC {
 142 class ArgumentDecoder;
 143 class Connection;
 144 }
 145
 146 namespace WebCore {
 147 class AuthenticationChallenge;
 148 class Cursor;
 149 class DragData;
 150 class FloatRect;
 151 class GraphicsLayer;
 152 class IntSize;
 153 class MediaConstraintsImpl;
 154 class ProtectionSpace;
 155 class RunLoopObserver;
 156 class SharedBuffer;
 157 class TextIndicator;
 158 struct DictionaryPopupInfo;
 159 struct FileChooserSettings;
 160 struct SecurityOriginData;
 161 struct TextAlternativeWithRange;
 162 struct TextCheckingResult;
 163 struct ViewportAttributes;
 164 struct WindowFeatures;
 165 }
 166
 167 #if USE(APPKIT)
 168 OBJC_CLASS WKView;
 169 #endif
 170
 171 #if PLATFORM(GTK)
 172 typedef GtkWidget* PlatformWidget;
 173 #endif
 174
 175 namespace WebKit {
 176
 177 class CertificateInfo;
 178 class NativeWebKeyboardEvent;
 179 class NativeWebMouseEvent;
 180 class NativeWebWheelEvent;
 181 class PageClient;
 182 class RemoteLayerTreeScrollingPerformanceData;
 183 class RemoteLayerTreeTransaction;
 184 class RemoteScrollingCoordinatorProxy;
 185 class StringPairVector;
 186 class UserData;
 187 class ViewSnapshot;
 188 class VisitedLinkStore;
 189 class WebBackForwardList;
 190 class WebBackForwardListItem;
 191 class WebContextMenuProxy;
 192 class WebEditCommandProxy;
 193 class WebFullScreenManagerProxy;
 194 class WebNavigationState;
 195 class WebVideoFullscreenManagerProxy;
 196 class WebKeyboardEvent;
 197 class WebMouseEvent;
 198 class WebOpenPanelResultListenerProxy;
 199 class WebPageGroup;
 200 class WebProcessProxy;
 201 class WebUserContentControllerProxy;
 202 class WebWheelEvent;
 203 class WebsiteDataStore;
 204 struct AttributedString;
 205 struct ColorSpaceData;
 206 struct EditingRange;
 207 struct EditorState;
 208 struct PlatformPopupMenuData;
 209 struct PrintInfo;
 210 struct WebPopupItem;
 211
 212 #if ENABLE(VIBRATION)
 213 class WebVibrationProxy;
 214 #endif
 215
 216 #if USE(QUICK_LOOK)
 217 class QuickLookDocumentData;
 218 #endif
 219
 220 typedef GenericCallback<uint64_t> UnsignedCallback;
 221 typedef GenericCallback<EditingRange> EditingRangeCallback;
 222 typedef GenericCallback<const String&> StringCallback;
 223 typedef GenericCallback<API::SerializedScriptValue*, bool> ScriptValueCallback;
 224
 225 #if PLATFORM(GTK)
 226 typedef GenericCallback<API::Error*> PrintFinishedCallback;
 227 #endif
 228
 229 #if ENABLE(TOUCH_EVENTS)
 230 struct QueuedTouchEvents {
 231     QueuedTouchEvents(const NativeWebTouchEvent& event)
 232         : forwardedEvent(event)
 233     {
 234     }
 235     NativeWebTouchEvent forwardedEvent;
 236     Vector<NativeWebTouchEvent> deferredTouchEvents;
 237 };
 238 #endif
 239
 240 typedef GenericCallback<const String&, bool, int32_t> ValidateCommandCallback;
 241 typedef GenericCallback<const WebCore::IntRect&, const EditingRange&> RectForCharacterRangeCallback;
 242
 243 #if PLATFORM(MAC)
 244 typedef GenericCallback<const AttributedString&, const EditingRange&> AttributedStringForCharacterRangeCallback;
 245 typedef GenericCallback<const String&, double, bool> FontAtSelectionCallback;
 246 #endif
 247
 248 #if PLATFORM(IOS)
 249 typedef GenericCallback<const WebCore::IntPoint&, uint32_t, uint32_t, uint32_t> GestureCallback;
 250 typedef GenericCallback<const WebCore::IntPoint&, uint32_t> TouchesCallback;
 251 struct NodeAssistanceArguments {
 252     AssistedNodeInformation m_nodeInformation;
 253     bool m_userIsInteracting;
 254     bool m_blurPreviousNode;
 255     RefPtr<API::Object> m_userData;
 256 };
 257 #endif
 258
 259 #if PLATFORM(COCOA)
 260 typedef GenericCallback<const WebCore::MachSendRight&> MachSendRightCallback;
 261 #endif
 262
 263 class WebPageProxy : public API::ObjectImpl<API::Object::Type::Page>
 264 #if ENABLE(INPUT_TYPE_COLOR)
 265     , public WebColorPicker::Client
 266 #endif
 267 #if ENABLE(WIRELESS_PLAYBACK_TARGET) && !PLATFORM(IOS)
 268     , public WebCore::WebMediaSessionManagerClient
 269 #endif
 270     , public WebPopupMenuProxy::Client
 271     , public IPC::MessageReceiver
 272     , public IPC::MessageSender {
 273 public:
 274     static Ref<WebPageProxy> create(PageClient&, WebProcessProxy&, uint64_t pageID, Ref<API::PageConfiguration>&&);
 275     virtual ~WebPageProxy();
 276
 277     const API::PageConfiguration& configuration() const;
 278
 279     uint64_t pageID() const { return m_pageID; }
 280     WebCore::SessionID sessionID() const { return m_sessionID; }
 281     void setSessionID(WebCore::SessionID);
 282
 283     WebFrameProxy* mainFrame() const { return m_mainFrame.get(); }
 284     WebFrameProxy* focusedFrame() const { return m_focusedFrame.get(); }
 285     WebFrameProxy* frameSetLargestFrame() const { return m_frameSetLargestFrame.get(); }
 286
 287     DrawingAreaProxy* drawingArea() const { return m_drawingArea.get(); }
 288
 289     WebNavigationState& navigationState() { return *m_navigationState.get(); }
 290
 291     WebsiteDataStore& websiteDataStore() { return m_websiteDataStore; }
 292
 293 #if ENABLE(ASYNC_SCROLLING)
 294     RemoteScrollingCoordinatorProxy* scrollingCoordinatorProxy() const { return m_scrollingCoordinatorProxy.get(); }
 295 #endif
 296
 297     WebBackForwardList& backForwardList() { return m_backForwardList; }
 298
 299     bool addsVisitedLinks() const { return m_addsVisitedLinks; }
 300     void setAddsVisitedLinks(bool addsVisitedLinks) { m_addsVisitedLinks = addsVisitedLinks; }
 301
 302     void fullscreenMayReturnToInline();
 303     void didEnterFullscreen();
 304     void didExitFullscreen();
 305
 306     WebInspectorProxy* inspector();
 307
 308 #if ENABLE(REMOTE_INSPECTOR)
 309     bool allowsRemoteInspection() const { return m_allowsRemoteInspection; }
 310     void setAllowsRemoteInspection(bool);
 311 #endif
 312
 313 #if ENABLE(VIBRATION)
 314     WebVibrationProxy* vibration() { return m_vibration.get(); }
 315 #endif
 316
 317 #if ENABLE(FULLSCREEN_API)
 318     WebFullScreenManagerProxy* fullScreenManager();
 319 #endif
 320 #if PLATFORM(IOS)
 321     RefPtr<WebVideoFullscreenManagerProxy> videoFullscreenManager();
 322
 323     bool allowsMediaDocumentInlinePlayback() const;
 324     void setAllowsMediaDocumentInlinePlayback(bool);
 325 #endif
 326
 327 #if ENABLE(CONTEXT_MENUS)
 328     void setContextMenuClient(std::unique_ptr<API::ContextMenuClient>);
 329 #endif
 330     API::FindClient& findClient() { return *m_findClient; }
 331     void setFindClient(std::unique_ptr<API::FindClient>);
 332     API::DiagnosticLoggingClient& diagnosticLoggingClient() { return *m_diagnosticLoggingClient; }
 333     void setDiagnosticLoggingClient(std::unique_ptr<API::DiagnosticLoggingClient>);
 334     void initializeFindMatchesClient(const WKPageFindMatchesClientBase*);
 335     void setFormClient(std::unique_ptr<API::FormClient>);
 336     void setNavigationClient(std::unique_ptr<API::NavigationClient>);
 337     void setHistoryClient(std::unique_ptr<API::HistoryClient>);
 338     void setLoaderClient(std::unique_ptr<API::LoaderClient>);
 339     void setPolicyClient(std::unique_ptr<API::PolicyClient>);
 340     void setInjectedBundleClient(const WKPageInjectedBundleClientBase*);
 341     WebPageInjectedBundleClient* injectedBundleClient() { return m_injectedBundleClient.get(); }
 342
 343     API::UIClient& uiClient() { return *m_uiClient; }
 344     void setUIClient(std::unique_ptr<API::UIClient>);
 345 #if PLATFORM(EFL)
 346     void initializeUIPopupMenuClient(const WKPageUIPopupMenuClientBase*);
 347 #endif
 348
 349     void initializeWebPage();
 350
 351     void close();
 352     bool tryClose();
 353     bool isClosed() const { return m_isClosed; }
 354
 355     RefPtr<API::Navigation> loadRequest(const WebCore::ResourceRequest&, WebCore::ShouldOpenExternalURLsPolicy = WebCore::ShouldOpenExternalURLsPolicy::ShouldAllowExternalSchemes, API::Object* userData = nullptr);
 356     RefPtr<API::Navigation> loadFile(const String& fileURL, const String& resourceDirectoryURL, API::Object* userData = nullptr);
 357     RefPtr<API::Navigation> loadData(API::Data*, const String& MIMEType, const String& encoding, const String& baseURL, API::Object* userData = nullptr);
 358     RefPtr<API::Navigation> loadHTMLString(const String& htmlString, const String& baseURL, API::Object* userData = nullptr);
 359     void loadAlternateHTMLString(const String& htmlString, const String& baseURL, const String& unreachableURL, API::Object* userData = nullptr);
 360     void loadPlainTextString(const String&, API::Object* userData = nullptr);
 361     void loadWebArchiveData(API::Data*, API::Object* userData = nullptr);
 362     void navigateToPDFLinkWithSimulatedClick(const String& url, WebCore::IntPoint documentPoint, WebCore::IntPoint screenPoint);
 363
 364     void stopLoading();
 365     RefPtr<API::Navigation> reload(bool reloadFromOrigin);
 366
 367     RefPtr<API::Navigation> goForward();
 368     RefPtr<API::Navigation> goBack();
 369
 370     RefPtr<API::Navigation> goToBackForwardItem(WebBackForwardListItem*);
 371     void tryRestoreScrollPosition();
 372     void didChangeBackForwardList(WebBackForwardListItem* addedItem, Vector<RefPtr<WebBackForwardListItem>> removed);
 373     void willGoToBackForwardListItem(uint64_t itemID, const UserData&);
 374
 375     bool shouldKeepCurrentBackForwardListItemInList(WebBackForwardListItem*);
 376
 377     bool willHandleHorizontalScrollEvents() const;
 378
 379     bool canShowMIMEType(const String& mimeType);
 380
 381     bool drawsBackground() const { return m_drawsBackground; }
 382     void setDrawsBackground(bool);
 383
 384     bool drawsTransparentBackground() const { return m_drawsTransparentBackground; }
 385     void setDrawsTransparentBackground(bool);
 386
 387     float topContentInset() const { return m_topContentInset; }
 388     void setTopContentInset(float);
 389
 390     WebCore::Color underlayColor() const { return m_underlayColor; }
 391     void setUnderlayColor(const WebCore::Color&);
 392
 393     // At this time, m_pageExtendedBackgroundColor can be set via pageExtendedBackgroundColorDidChange() which is a message
 394     // from the UIProcess, or by didCommitLayerTree(). When PLATFORM(MAC) adopts UI side compositing, we should get rid of
 395     // the message entirely.
 396     WebCore::Color pageExtendedBackgroundColor() const { return m_pageExtendedBackgroundColor; }
 397
 398     void viewWillStartLiveResize();
 399     void viewWillEndLiveResize();
 400
 401     void setInitialFocus(bool forward, bool isKeyboardEventValid, const WebKeyboardEvent&, std::function<void (CallbackBase::Error)>);
 402
 403     void clearSelection();
 404     void restoreSelectionInFocusedEditableElement();
 405
 406     void setViewNeedsDisplay(const WebCore::IntRect&);
 407     void displayView();
 408     bool canScrollView();
 409     void scrollView(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset); // FIXME: CoordinatedGraphics should use requestScroll().
 410     void requestScroll(const WebCore::FloatPoint& scrollPosition, const WebCore::IntPoint& scrollOrigin, bool isProgrammaticScroll);
 411
 412     void setDelegatesScrolling(bool delegatesScrolling) { m_delegatesScrolling = delegatesScrolling; }
 413     bool delegatesScrolling() const { return m_delegatesScrolling; }
 414
 415     enum class ViewStateChangeDispatchMode { Deferrable, Immediate };
 416     void viewStateDidChange(WebCore::ViewState::Flags mayHaveChanged, bool wantsSynchronousReply = false, ViewStateChangeDispatchMode = ViewStateChangeDispatchMode::Deferrable);
 417     bool isInWindow() const { return m_viewState & WebCore::ViewState::IsInWindow; }
 418     void waitForDidUpdateViewState();
 419     void didUpdateViewState() { m_waitingForDidUpdateViewState = false; }
 420
 421     void layerHostingModeDidChange();
 422
 423     WebCore::IntSize viewSize() const;
 424     bool isViewVisible() const { return m_viewState & WebCore::ViewState::IsVisible; }
 425     bool isViewWindowActive() const;
 426
 427     void addMIMETypeWithCustomContentProvider(const String& mimeType);
 428
 429     void executeEditCommand(const String& commandName, const String& argument = String());
 430     void validateCommand(const String& commandName, std::function<void (const String&, bool, int32_t, CallbackBase::Error)>);
 431
 432     const EditorState& editorState() const { return m_editorState; }
 433     bool canDelete() const { return hasSelectedRange() && isContentEditable(); }
 434     bool hasSelectedRange() const { return m_editorState.selectionIsRange; }
 435     bool isContentEditable() const { return m_editorState.isContentEditable; }
 436
 437     bool maintainsInactiveSelection() const { return m_maintainsInactiveSelection; }
 438     void setMaintainsInactiveSelection(bool);
 439     void setEditable(bool);
 440     bool isEditable() const { return m_isEditable; }
 441
 442 #if PLATFORM(IOS)
 443     void executeEditCommand(const String& commandName, std::function<void (CallbackBase::Error)>);
 444     double displayedContentScale() const { return m_lastVisibleContentRectUpdate.scale(); }
 445     const WebCore::FloatRect& exposedContentRect() const { return m_lastVisibleContentRectUpdate.exposedRect(); }
 446     const WebCore::FloatRect& unobscuredContentRect() const { return m_lastVisibleContentRectUpdate.unobscuredRect(); }
 447
 448     void updateVisibleContentRects(const WebCore::FloatRect& exposedRect, const WebCore::FloatRect& unobscuredRect, const WebCore::FloatRect& unobscuredRectInScrollViewCoordinates, const WebCore::FloatRect& customFixedPositionRect, double scale, bool inStableState, bool isChangingObscuredInsetsInteractively, double timestamp, double horizontalVelocity, double verticalVelocity, double scaleChangeRate);
 449     void resendLastVisibleContentRects();
 450
 451     enum class UnobscuredRectConstraint { ConstrainedToDocumentRect, Unconstrained };
 452     WebCore::FloatRect computeCustomFixedPositionRect(const WebCore::FloatRect& unobscuredContentRect, double displayedContentScale, UnobscuredRectConstraint = UnobscuredRectConstraint::Unconstrained) const;
 453     void overflowScrollViewWillStartPanGesture();
 454     void overflowScrollViewDidScroll();
 455     void overflowScrollWillStartScroll();
 456     void overflowScrollDidEndScroll();
 457
 458     void dynamicViewportSizeUpdate(const WebCore::FloatSize& minimumLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const WebCore::FloatRect& targetExposedContentRect, const WebCore::FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, double targetScale, int32_t deviceOrientation);
 459     void synchronizeDynamicViewportUpdate();
 460
 461     void setViewportConfigurationMinimumLayoutSize(const WebCore::FloatSize&);
 462     void setMaximumUnobscuredSize(const WebCore::FloatSize&);
 463     void setDeviceOrientation(int32_t);
 464     int32_t deviceOrientation() const { return m_deviceOrientation; }
 465     void willCommitLayerTree(uint64_t transactionID);
 466
 467     void selectWithGesture(const WebCore::IntPoint, WebCore::TextGranularity, uint32_t gestureType, uint32_t gestureState, bool isInteractingWithAssistedNode, std::function<void (const WebCore::IntPoint&, uint32_t, uint32_t, uint32_t, CallbackBase::Error)>);
 468     void updateSelectionWithTouches(const WebCore::IntPoint, uint32_t touches, bool baseIsStart, std::function<void (const WebCore::IntPoint&, uint32_t, CallbackBase::Error)>);
 469     void selectWithTwoTouches(const WebCore::IntPoint from, const WebCore::IntPoint to, uint32_t gestureType, uint32_t gestureState, std::function<void (const WebCore::IntPoint&, uint32_t, uint32_t, uint32_t, CallbackBase::Error)>);
 470     void updateBlockSelectionWithTouch(const WebCore::IntPoint, uint32_t touch, uint32_t handlePosition);
 471     void extendSelection(WebCore::TextGranularity);
 472     void selectWordBackward();
 473     void moveSelectionByOffset(int32_t offset, std::function<void (CallbackBase::Error)>);
 474     void selectTextWithGranularityAtPoint(const WebCore::IntPoint, WebCore::TextGranularity, bool isInteractingWithAssistedNode, std::function<void (CallbackBase::Error)>);
 475     void selectPositionAtPoint(const WebCore::IntPoint, bool isInteractingWithAssistedNode, std::function<void (CallbackBase::Error)>);
 476     void selectPositionAtBoundaryWithDirection(const WebCore::IntPoint, WebCore::TextGranularity, WebCore::SelectionDirection, bool isInteractingWithAssistedNode, std::function<void (CallbackBase::Error)>);
 477     void moveSelectionAtBoundaryWithDirection(WebCore::TextGranularity, WebCore::SelectionDirection, std::function<void(CallbackBase::Error)>);
 478     void beginSelectionInDirection(WebCore::SelectionDirection, std::function<void (uint64_t, CallbackBase::Error)>);
 479     void updateSelectionWithExtentPoint(const WebCore::IntPoint, bool isInteractingWithAssistedNode, std::function<void (uint64_t, CallbackBase::Error)>);
 480     void updateSelectionWithExtentPointAndBoundary(const WebCore::IntPoint, WebCore::TextGranularity, bool isInteractingWithAssistedNode, std::function<void(uint64_t, CallbackBase::Error)>);
 481     void requestAutocorrectionData(const String& textForAutocorrection, std::function<void (const Vector<WebCore::FloatRect>&, const String&, double, uint64_t, CallbackBase::Error)>);
 482     void applyAutocorrection(const String& correction, const String& originalText, std::function<void (const String&, CallbackBase::Error)>);
 483     bool applyAutocorrection(const String& correction, const String& originalText);
 484     void requestAutocorrectionContext(std::function<void (const String&, const String&, const String&, const String&, uint64_t, uint64_t, CallbackBase::Error)>);
 485     void getAutocorrectionContext(String& contextBefore, String& markedText, String& selectedText, String& contextAfter, uint64_t& location, uint64_t& length);
 486     void requestDictationContext(std::function<void (const String&, const String&, const String&, CallbackBase::Error)>);
 487     void replaceDictatedText(const String& oldText, const String& newText);
 488     void replaceSelectedText(const String& oldText, const String& newText);
 489     void didReceivePositionInformation(const InteractionInformationAtPosition&);
 490     void getPositionInformation(const WebCore::IntPoint&, InteractionInformationAtPosition&);
 491     void requestPositionInformation(const WebCore::IntPoint&);
 492     void startInteractionWithElementAtPosition(const WebCore::IntPoint&);
 493     void stopInteraction();
 494     void performActionOnElement(uint32_t action);
 495     void saveImageToLibrary(const SharedMemory::Handle& imageHandle, uint64_t imageSize);
 496     void didUpdateBlockSelectionWithTouch(uint32_t touch, uint32_t flags, float growThreshold, float shrinkThreshold);
 497     void focusNextAssistedNode(bool isForward, std::function<void (CallbackBase::Error)>);
 498     void setAssistedNodeValue(const String&);
 499     void setAssistedNodeValueAsNumber(double);
 500     void setAssistedNodeSelectedIndex(uint32_t index, bool allowMultipleSelection = false);
 501     void applicationDidEnterBackground();
 502     void applicationWillEnterForeground();
 503     void applicationWillResignActive();
 504     void applicationDidBecomeActive();
 505     void zoomToRect(WebCore::FloatRect, double minimumScale, double maximumScale);
 506     void commitPotentialTapFailed();
 507     void didNotHandleTapAsClick(const WebCore::IntPoint&);
 508     void viewportMetaTagWidthDidChange(float width);
 509     void didFinishDrawingPagesToPDF(const IPC::DataReference&);
 510     void contentSizeCategoryDidChange(const String& contentSizeCategory);
 511     void getLookupContextAtPoint(const WebCore::IntPoint&, std::function<void(const String&, CallbackBase::Error)>);
 512 #endif
 513
 514     void didCommitLayerTree(const WebKit::RemoteLayerTreeTransaction&);
 515
 516 #if USE(COORDINATED_GRAPHICS_MULTIPROCESS)
 517     void didRenderFrame(const WebCore::IntSize& contentsSize, const WebCore::IntRect& coveredRect);
 518     void commitPageTransitionViewport();
 519 #endif
 520 #if PLATFORM(EFL)
 521     void setThemePath(const String&);
 522 #endif
 523
 524 #if PLATFORM(GTK)
 525     void setComposition(const String& text, Vector<WebCore::CompositionUnderline> underlines, uint64_t selectionStart, uint64_t selectionEnd, uint64_t replacementRangeStart, uint64_t replacementRangeEnd);
 526     void confirmComposition(const String& compositionString, int64_t selectionStart, int64_t selectionLength);
 527     void cancelComposition();
 528 #endif
 529
 530 #if PLATFORM(GTK)
 531     void setInputMethodState(bool enabled);
 532 #endif
 533
 534 #if PLATFORM (GTK) && HAVE(GTK_GESTURES)
 535     void getCenterForZoomGesture(const WebCore::IntPoint& centerInViewCoordinates, WebCore::IntPoint& center);
 536 #endif
 537
 538 #if PLATFORM(COCOA)
 539     void windowAndViewFramesChanged(const WebCore::FloatRect& viewFrameInWindowCoordinates, const WebCore::FloatPoint& accessibilityViewCoordinates);
 540     void setMainFrameIsScrollable(bool);
 541
 542     void sendComplexTextInputToPlugin(uint64_t pluginComplexTextInputIdentifier, const String& textInput);
 543     bool shouldDelayWindowOrderingForEvent(const WebMouseEvent&);
 544     bool acceptsFirstMouse(int eventNumber, const WebMouseEvent&);
 545
 546     void setAcceleratedCompositingRootLayer(LayerOrView*);
 547     LayerOrView* acceleratedCompositingRootLayer() const;
 548
 549     void insertTextAsync(const String& text, const EditingRange& replacementRange, bool registerUndoGroup = false);
 550     void getMarkedRangeAsync(std::function<void (EditingRange, CallbackBase::Error)>);
 551     void getSelectedRangeAsync(std::function<void (EditingRange, CallbackBase::Error)>);
 552     void characterIndexForPointAsync(const WebCore::IntPoint&, std::function<void (uint64_t, CallbackBase::Error)>);
 553     void firstRectForCharacterRangeAsync(const EditingRange&, std::function<void (const WebCore::IntRect&, const EditingRange&, CallbackBase::Error)>);
 554     void setCompositionAsync(const String& text, Vector<WebCore::CompositionUnderline> underlines, const EditingRange& selectionRange, const EditingRange& replacementRange);
 555     void confirmCompositionAsync();
 556
 557     void setScrollPerformanceDataCollectionEnabled(bool);
 558     bool scrollPerformanceDataCollectionEnabled() const { return m_scrollPerformanceDataCollectionEnabled; }
 559     RemoteLayerTreeScrollingPerformanceData* scrollingPerformanceData() { return m_scrollingPerformanceData.get(); }
 560 #endif // PLATFORM(COCOA)
 561
 562 #if PLATFORM(MAC)
 563     void insertDictatedTextAsync(const String& text, const EditingRange& replacementRange, const Vector<WebCore::TextAlternativeWithRange>& dictationAlternatives, bool registerUndoGroup);
 564     void attributedSubstringForCharacterRangeAsync(const EditingRange&, std::function<void (const AttributedString&, const EditingRange&, CallbackBase::Error)>);
 565     void setFont(const String& fontFamily, double fontSize, uint64_t fontTraits);
 566     void fontAtSelection(std::function<void (const String&, double, bool, CallbackBase::Error)>);
 567
 568 #if !USE(ASYNC_NSTEXTINPUTCLIENT)
 569     bool insertText(const String& text, const EditingRange& replacementRange);
 570     void setComposition(const String& text, Vector<WebCore::CompositionUnderline> underlines, const EditingRange& selectionRange, const EditingRange& replacementRange);
 571     void confirmComposition();
 572     bool insertDictatedText(const String& text, const EditingRange& replacementRange, const Vector<WebCore::TextAlternativeWithRange>& dictationAlternatives);
 573     void getAttributedSubstringFromRange(const EditingRange&, AttributedString&);
 574     void getMarkedRange(EditingRange&);
 575     void getSelectedRange(EditingRange&);
 576     uint64_t characterIndexForPoint(const WebCore::IntPoint);
 577     WebCore::IntRect firstRectForCharacterRange(const EditingRange&);
 578     bool executeKeypressCommands(const Vector<WebCore::KeypressCommand>&);
 579     void cancelComposition();
 580 #endif // !USE(ASYNC_NSTEXTINPUTCLIENT)
 581
 582     WKView* wkView() const;
 583     void intrinsicContentSizeDidChange(const WebCore::IntSize& intrinsicContentSize);
 584     CGRect boundsOfLayerInLayerBackedWindowCoordinates(CALayer *) const;
 585 #endif // PLATFORM(MAC)
 586
 587 #if PLATFORM(EFL)
 588     void handleInputMethodKeydown(bool& handled);
 589     void confirmComposition(const String&);
 590     void setComposition(const String&, Vector<WebCore::CompositionUnderline>&, int);
 591     void cancelComposition();
 592 #endif
 593
 594 #if PLATFORM(GTK)
 595     PlatformWidget viewWidget();
 596     const WebCore::Color& backgroundColor() const { return m_backgroundColor; }
 597     void setBackgroundColor(const WebCore::Color& color) { m_backgroundColor = color; }
 598 #endif
 599
 600     void handleMouseEvent(const NativeWebMouseEvent&);
 601     void handleWheelEvent(const NativeWebWheelEvent&);
 602     void handleKeyboardEvent(const NativeWebKeyboardEvent&);
 603
 604 #if ENABLE(IOS_TOUCH_EVENTS)
 605     void handleTouchEventSynchronously(const NativeWebTouchEvent&);
 606     void handleTouchEventAsynchronously(const NativeWebTouchEvent&);
 607
 608 #elif ENABLE(TOUCH_EVENTS)
 609     void handleTouchEvent(const NativeWebTouchEvent&);
 610 #endif
 611
 612     void scrollBy(WebCore::ScrollDirection, WebCore::ScrollGranularity);
 613     void centerSelectionInVisibleArea();
 614
 615     const String& toolTip() const { return m_toolTip; }
 616
 617     const String& userAgent() const { return m_userAgent; }
 618     void setApplicationNameForUserAgent(const String&);
 619     const String& applicationNameForUserAgent() const { return m_applicationNameForUserAgent; }
 620     void setCustomUserAgent(const String&);
 621     const String& customUserAgent() const { return m_customUserAgent; }
 622     static String standardUserAgent(const String& applicationName = String());
 623
 624     bool supportsTextEncoding() const;
 625     void setCustomTextEncodingName(const String&);
 626     String customTextEncodingName() const { return m_customTextEncodingName; }
 627
 628     bool areActiveDOMObjectsAndAnimationsSuspended() const { return m_isPageSuspended; }
 629     void resumeActiveDOMObjectsAndAnimations();
 630     void suspendActiveDOMObjectsAndAnimations();
 631
 632     double estimatedProgress() const;
 633
 634     void terminateProcess();
 635
 636     SessionState sessionState(const std::function<bool (WebBackForwardListItem&)>& = nullptr) const;
 637     RefPtr<API::Navigation> restoreFromSessionState(SessionState, bool navigate);
 638
 639     bool supportsTextZoom() const;
 640     double textZoomFactor() const { return m_textZoomFactor; }
 641     void setTextZoomFactor(double);
 642     double pageZoomFactor() const;
 643     void setPageZoomFactor(double);
 644     void setPageAndTextZoomFactors(double pageZoomFactor, double textZoomFactor);
 645
 646     void scalePage(double scale, const WebCore::IntPoint& origin);
 647     void scalePageInViewCoordinates(double scale, const WebCore::IntPoint& centerInViewCoordinates);
 648     double pageScaleFactor() const;
 649     double viewScaleFactor() const { return m_viewScaleFactor; }
 650     void scaleView(double scale);
 651     void setShouldScaleViewToFitDocument(bool);
 652
 653     bool userContentExtensionsEnabled() { return m_userContentExtensionsEnabled; }
 654     void setUserContentExtensionsEnabled(bool);
 655
 656     float deviceScaleFactor() const;
 657     void setIntrinsicDeviceScaleFactor(float);
 658     void setCustomDeviceScaleFactor(float);
 659     void windowScreenDidChange(PlatformDisplayID);
 660
 661     void setUseFixedLayout(bool);
 662     void setFixedLayoutSize(const WebCore::IntSize&);
 663     bool useFixedLayout() const { return m_useFixedLayout; };
 664     const WebCore::IntSize& fixedLayoutSize() const { return m_fixedLayoutSize; };
 665
 666     void listenForLayoutMilestones(WebCore::LayoutMilestones);
 667
 668     bool hasHorizontalScrollbar() const { return m_mainFrameHasHorizontalScrollbar; }
 669     bool hasVerticalScrollbar() const { return m_mainFrameHasVerticalScrollbar; }
 670
 671     void setSuppressScrollbarAnimations(bool);
 672     bool areScrollbarAnimationsSuppressed() const { return m_suppressScrollbarAnimations; }
 673
 674     bool isPinnedToLeftSide() const { return m_mainFrameIsPinnedToLeftSide; }
 675     bool isPinnedToRightSide() const { return m_mainFrameIsPinnedToRightSide; }
 676     bool isPinnedToTopSide() const { return m_mainFrameIsPinnedToTopSide; }
 677     bool isPinnedToBottomSide() const { return m_mainFrameIsPinnedToBottomSide; }
 678
 679     bool rubberBandsAtLeft() const;
 680     void setRubberBandsAtLeft(bool);
 681     bool rubberBandsAtRight() const;
 682     void setRubberBandsAtRight(bool);
 683     bool rubberBandsAtTop() const;
 684     void setRubberBandsAtTop(bool);
 685     bool rubberBandsAtBottom() const;
 686     void setRubberBandsAtBottom(bool);
 687
 688     void setShouldUseImplicitRubberBandControl(bool shouldUseImplicitRubberBandControl) { m_shouldUseImplicitRubberBandControl = shouldUseImplicitRubberBandControl; }
 689     bool shouldUseImplicitRubberBandControl() const { return m_shouldUseImplicitRubberBandControl; }
 690
 691     void setEnableVerticalRubberBanding(bool);
 692     bool verticalRubberBandingIsEnabled() const;
 693     void setEnableHorizontalRubberBanding(bool);
 694     bool horizontalRubberBandingIsEnabled() const;
 695
 696     void setBackgroundExtendsBeyondPage(bool);
 697     bool backgroundExtendsBeyondPage() const;
 698
 699     void setPaginationMode(WebCore::Pagination::Mode);
 700     WebCore::Pagination::Mode paginationMode() const { return m_paginationMode; }
 701     void setPaginationBehavesLikeColumns(bool);
 702     bool paginationBehavesLikeColumns() const { return m_paginationBehavesLikeColumns; }
 703     void setPageLength(double);
 704     double pageLength() const { return m_pageLength; }
 705     void setGapBetweenPages(double);
 706     double gapBetweenPages() const { return m_gapBetweenPages; }
 707     unsigned pageCount() const { return m_pageCount; }
 708
 709 #if PLATFORM(COCOA)
 710     // Called by the web process through a message.
 711     void registerWebProcessAccessibilityToken(const IPC::DataReference&);
 712     // Called by the UI process when it is ready to send its tokens to the web process.
 713     void registerUIProcessAccessibilityTokens(const IPC::DataReference& elemenToken, const IPC::DataReference& windowToken);
 714     bool readSelectionFromPasteboard(const String& pasteboardName);
 715     String stringSelectionForPasteboard();
 716     RefPtr<WebCore::SharedBuffer> dataSelectionForPasteboard(const String& pasteboardType);
 717     void makeFirstResponder();
 718
 719     ColorSpaceData colorSpace();
 720 #endif
 721
 722 #if ENABLE(SERVICE_CONTROLS)
 723     void replaceSelectionWithPasteboardData(const Vector<String>& types, const IPC::DataReference&);
 724 #endif
 725
 726     void pageScaleFactorDidChange(double);
 727     void pluginScaleFactorDidChange(double);
 728     void pluginZoomFactorDidChange(double);
 729
 730     // Find.
 731     void findString(const String&, FindOptions, unsigned maxMatchCount);
 732     void findStringMatches(const String&, FindOptions, unsigned maxMatchCount);
 733     void getImageForFindMatch(int32_t matchIndex);
 734     void selectFindMatch(int32_t matchIndex);
 735     void didGetImageForFindMatch(const ShareableBitmap::Handle& contentImageHandle, uint32_t matchIndex);
 736     void hideFindUI();
 737     void countStringMatches(const String&, FindOptions, unsigned maxMatchCount);
 738     void didCountStringMatches(const String&, uint32_t matchCount);
 739     void setTextIndicator(const WebCore::TextIndicatorData&, uint64_t /* WebCore::TextIndicatorWindowLifetime */ lifetime = 0 /* Permanent */);
 740     void setTextIndicatorAnimationProgress(float);
 741     void clearTextIndicator();
 742     void didFindString(const String&, uint32_t matchCount, int32_t matchIndex);
 743     void didFailToFindString(const String&);
 744     void didFindStringMatches(const String&, const Vector<Vector<WebCore::IntRect>>& matchRects, int32_t firstIndexAfterSelection);
 745
 746     void getContentsAsString(std::function<void (const String&, CallbackBase::Error)>);
 747     void getBytecodeProfile(std::function<void (const String&, CallbackBase::Error)>);
 748
 749 #if ENABLE(MHTML)
 750     void getContentsAsMHTMLData(std::function<void (API::Data*, CallbackBase::Error)>, bool useBinaryEncoding);
 751 #endif
 752     void getMainResourceDataOfFrame(WebFrameProxy*, std::function<void (API::Data*, CallbackBase::Error)>);
 753     void getResourceDataFromFrame(WebFrameProxy*, API::URL*, std::function<void (API::Data*, CallbackBase::Error)>);
 754     void getRenderTreeExternalRepresentation(std::function<void (const String&, CallbackBase::Error)>);
 755     void getSelectionOrContentsAsString(std::function<void (const String&, CallbackBase::Error)>);
 756     void getSelectionAsWebArchiveData(std::function<void (API::Data*, CallbackBase::Error)>);
 757     void getSourceForFrame(WebFrameProxy*, std::function<void (const String&, CallbackBase::Error)>);
 758     void getWebArchiveOfFrame(WebFrameProxy*, std::function<void (API::Data*, CallbackBase::Error)>);
 759     void runJavaScriptInMainFrame(const String&, std::function<void (API::SerializedScriptValue*, bool hadException, CallbackBase::Error)> callbackFunction);
 760     void forceRepaint(PassRefPtr<VoidCallback>);
 761
 762     float headerHeight(WebFrameProxy*);
 763     float footerHeight(WebFrameProxy*);
 764     void drawHeader(WebFrameProxy*, const WebCore::FloatRect&);
 765     void drawFooter(WebFrameProxy*, const WebCore::FloatRect&);
 766
 767 #if PLATFORM(COCOA)
 768     // Dictionary.
 769     void performDictionaryLookupAtLocation(const WebCore::FloatPoint&);
 770     void performDictionaryLookupOfCurrentSelection();
 771 #endif
 772
 773     void receivedPolicyDecision(WebCore::PolicyAction, WebFrameProxy*, uint64_t listenerID, API::Navigation* navigationID);
 774
 775     void backForwardRemovedItem(uint64_t itemID);
 776
 777 #if ENABLE(DRAG_SUPPORT)
 778     // Drag and drop support.
 779     void dragEntered(WebCore::DragData&, const String& dragStorageName = String());
 780     void dragUpdated(WebCore::DragData&, const String& dragStorageName = String());
 781     void dragExited(WebCore::DragData&, const String& dragStorageName = String());
 782     void performDragOperation(WebCore::DragData&, const String& dragStorageName, const SandboxExtension::Handle&, const SandboxExtension::HandleArray&);
 783
 784     void didPerformDragControllerAction(uint64_t dragOperation, bool mouseIsOverFileInput, unsigned numberOfItemsToBeAccepted);
 785     void dragEnded(const WebCore::IntPoint& clientPosition, const WebCore::IntPoint& globalPosition, uint64_t operation);
 786 #if PLATFORM(COCOA)
 787     void setDragImage(const WebCore::IntPoint& clientPosition, const ShareableBitmap::Handle& dragImageHandle, bool isLinkDrag);
 788     void setPromisedDataForImage(const String& pasteboardName, const SharedMemory::Handle& imageHandle, uint64_t imageSize, const String& filename, const String& extension,
 789                          const String& title, const String& url, const String& visibleURL, const SharedMemory::Handle& archiveHandle, uint64_t archiveSize);
 790 #if ENABLE(ATTACHMENT_ELEMENT)
 791     void setPromisedDataForAttachment(const String& pasteboardName, const String& filename, const String& extension, const String& title, const String& url, const String& visibleURL);
 792 #endif
 793 #endif
 794 #if PLATFORM(GTK)
 795     void startDrag(const WebCore::DragData&, const ShareableBitmap::Handle& dragImage);
 796 #endif
 797 #endif
 798
 799     void processDidBecomeUnresponsive();
 800     void interactionOccurredWhileProcessUnresponsive();
 801     void processDidBecomeResponsive();
 802     void processDidCrash();
 803 #if PLATFORM(IOS)
 804     void processWillBecomeSuspended();
 805     void processWillBecomeForeground();
 806 #endif
 807
 808     virtual void enterAcceleratedCompositingMode(const LayerTreeContext&);
 809     virtual void exitAcceleratedCompositingMode();
 810     virtual void updateAcceleratedCompositingMode(const LayerTreeContext&);
 811
 812     enum UndoOrRedo { Undo, Redo };
 813     void addEditCommand(WebEditCommandProxy*);
 814     void removeEditCommand(WebEditCommandProxy*);
 815     bool isValidEditCommand(WebEditCommandProxy*);
 816     void registerEditCommand(PassRefPtr<WebEditCommandProxy>, UndoOrRedo);
 817
 818 #if PLATFORM(COCOA)
 819     void registerKeypressCommandName(const String& name) { m_knownKeypressCommandNames.add(name); }
 820     bool isValidKeypressCommandName(const String& name) const { return m_knownKeypressCommandNames.contains(name); }
 821 #endif
 822
 823     WebProcessProxy& process() { return m_process; }
 824     PlatformProcessIdentifier processIdentifier() const;
 825
 826     WebPreferences& preferences() { return m_preferences; }
 827     void setPreferences(WebPreferences&);
 828
 829     WebPageGroup& pageGroup() { return m_pageGroup; }
 830
 831     bool isValid() const;
 832
 833 #if ENABLE(DRAG_SUPPORT)
 834     WebCore::DragOperation currentDragOperation() const { return m_currentDragOperation; }
 835     bool currentDragIsOverFileInput() const { return m_currentDragIsOverFileInput; }
 836     unsigned currentDragNumberOfFilesToBeAccepted() const { return m_currentDragNumberOfFilesToBeAccepted; }
 837     void resetCurrentDragInformation()
 838     {
 839         m_currentDragOperation = WebCore::DragOperationNone;
 840         m_currentDragIsOverFileInput = false;
 841         m_currentDragNumberOfFilesToBeAccepted = 0;
 842     }
 843 #endif
 844
 845     void preferencesDidChange();
 846
 847 #if ENABLE(CONTEXT_MENUS)
 848     // Called by the WebContextMenuProxy.
 849     void contextMenuItemSelected(const WebContextMenuItemData&);
 850 #endif
 851
 852     // Called by the WebOpenPanelResultListenerProxy.
 853 #if PLATFORM(IOS)
 854     void didChooseFilesForOpenPanelWithDisplayStringAndIcon(const Vector<String>&, const String& displayString, const API::Data* iconData);
 855 #endif
 856     void didChooseFilesForOpenPanel(const Vector<String>&);
 857     void didCancelForOpenPanel();
 858
 859     WebPageCreationParameters creationParameters();
 860
 861 #if USE(COORDINATED_GRAPHICS_MULTIPROCESS)
 862     void findZoomableAreaForPoint(const WebCore::IntPoint&, const WebCore::IntSize&);
 863 #endif
 864
 865     void handleDownloadRequest(DownloadProxy*);
 866
 867     void advanceToNextMisspelling(bool startBeforeSelection);
 868     void changeSpellingToWord(const String& word);
 869 #if USE(APPKIT)
 870     void uppercaseWord();
 871     void lowercaseWord();
 872     void capitalizeWord();
 873 #endif
 874
 875 #if PLATFORM(COCOA)
 876     bool isSmartInsertDeleteEnabled() const { return m_isSmartInsertDeleteEnabled; }
 877     void setSmartInsertDeleteEnabled(bool);
 878 #endif
 879
 880 #if PLATFORM(GTK)
 881     String accessibilityPlugID() const { return m_accessibilityPlugID; }
 882 #endif
 883
 884     void setCanRunModal(bool);
 885     bool canRunModal();
 886
 887     void beginPrinting(WebFrameProxy*, const PrintInfo&);
 888     void endPrinting();
 889     void computePagesForPrinting(WebFrameProxy*, const PrintInfo&, PassRefPtr<ComputedPagesCallback>);
 890 #if PLATFORM(COCOA)
 891     void drawRectToImage(WebFrameProxy*, const PrintInfo&, const WebCore::IntRect&, const WebCore::IntSize&, PassRefPtr<ImageCallback>);
 892     void drawPagesToPDF(WebFrameProxy*, const PrintInfo&, uint32_t first, uint32_t count, PassRefPtr<DataCallback>);
 893 #elif PLATFORM(GTK)
 894     void drawPagesForPrinting(WebFrameProxy*, const PrintInfo&, PassRefPtr<PrintFinishedCallback>);
 895 #endif
 896
 897     PageLoadState& pageLoadState() { return m_pageLoadState; }
 898
 899 #if PLATFORM(COCOA)
 900     void handleAlternativeTextUIResult(const String& result);
 901 #endif
 902
 903     void saveDataToFileInDownloadsFolder(const String& suggestedFilename, const String& mimeType, const String& originatingURLString, API::Data*);
 904     void savePDFToFileInDownloadsFolder(const String& suggestedFilename, const String& originatingURLString, const IPC::DataReference&);
 905 #if PLATFORM(COCOA)
 906     void savePDFToTemporaryFolderAndOpenWithNativeApplicationRaw(const String& suggestedFilename, const String& originatingURLString, const uint8_t* data, unsigned long size, const String& pdfUUID);
 907     void savePDFToTemporaryFolderAndOpenWithNativeApplication(const String& suggestedFilename, const String& originatingURLString, const IPC::DataReference&, const String& pdfUUID);
 908     void openPDFFromTemporaryFolderWithNativeApplication(const String& pdfUUID);
 909 #endif
 910
 911     WebCore::IntRect visibleScrollerThumbRect() const { return m_visibleScrollerThumbRect; }
 912
 913     uint64_t renderTreeSize() const { return m_renderTreeSize; }
 914
 915     void printMainFrame();
 916
 917     void setMediaVolume(float);
 918     void setMuted(bool);
 919     void setMayStartMediaWhenInWindow(bool);
 920     bool mayStartMediaWhenInWindow() const { return m_mayStartMediaWhenInWindow; }
 921
 922 #if ENABLE(MEDIA_SESSION)
 923     bool hasMediaSessionWithActiveMediaElements() const { return m_hasMediaSessionWithActiveMediaElements; }
 924     void handleMediaEvent(WebCore::MediaEventType);
 925     void setVolumeOfMediaElement(double, uint64_t);
 926 #endif
 927
 928     // WebPopupMenuProxy::Client
 929     virtual NativeWebMouseEvent* currentlyProcessedMouseDownEvent() override;
 930
 931     void setSuppressVisibilityUpdates(bool flag);
 932     bool suppressVisibilityUpdates() { return m_suppressVisibilityUpdates; }
 933
 934 #if PLATFORM(IOS)
 935     void willStartUserTriggeredZooming();
 936
 937     void potentialTapAtPosition(const WebCore::FloatPoint&, uint64_t& requestID);
 938     void commitPotentialTap();
 939     void cancelPotentialTap();
 940     void tapHighlightAtPosition(const WebCore::FloatPoint&, uint64_t& requestID);
 941     void handleTap(const WebCore::FloatPoint&);
 942
 943     void inspectorNodeSearchMovedToPosition(const WebCore::FloatPoint&);
 944     void inspectorNodeSearchEndedAtPosition(const WebCore::FloatPoint&);
 945
 946     void blurAssistedNode();
 947 #endif
 948
 949     void postMessageToInjectedBundle(const String& messageName, API::Object* messageBody);
 950
 951 #if ENABLE(INPUT_TYPE_COLOR)
 952     void setColorPickerColor(const WebCore::Color&);
 953     void endColorPicker();
 954 #endif
 955
 956     WebCore::IntSize minimumLayoutSize() const { return m_minimumLayoutSize; }
 957     void setMinimumLayoutSize(const WebCore::IntSize&);
 958
 959     bool autoSizingShouldExpandToViewHeight() const { return m_autoSizingShouldExpandToViewHeight; }
 960     void setAutoSizingShouldExpandToViewHeight(bool);
 961
 962     void didReceiveAuthenticationChallengeProxy(uint64_t frameID, PassRefPtr<AuthenticationChallengeProxy>);
 963
 964     int64_t spellDocumentTag();
 965     void didFinishCheckingText(uint64_t requestID, const Vector<WebCore::TextCheckingResult>&);
 966     void didCancelCheckingText(uint64_t requestID);
 967
 968     void connectionWillOpen(IPC::Connection&);
 969     void webProcessWillShutDown();
 970
 971     void processDidFinishLaunching();
 972
 973     void didSaveToPageCache();
 974
 975     void setScrollPinningBehavior(WebCore::ScrollPinningBehavior);
 976     WebCore::ScrollPinningBehavior scrollPinningBehavior() { return m_scrollPinningBehavior; }
 977
 978     void setOverlayScrollbarStyle(WTF::Optional<WebCore::ScrollbarOverlayStyle>);
 979     WTF::Optional<WebCore::ScrollbarOverlayStyle> overlayScrollbarStyle() { return m_scrollbarOverlayStyle; }
 980
 981     bool shouldRecordNavigationSnapshots() const { return m_shouldRecordNavigationSnapshots; }
 982     void setShouldRecordNavigationSnapshots(bool shouldRecordSnapshots) { m_shouldRecordNavigationSnapshots = shouldRecordSnapshots; }
 983     void recordNavigationSnapshot();
 984     void recordNavigationSnapshot(WebBackForwardListItem&);
 985
 986 #if PLATFORM(COCOA)
 987     PassRefPtr<ViewSnapshot> takeViewSnapshot();
 988 #endif
 989
 990 #if ENABLE(SUBTLE_CRYPTO)
 991     void wrapCryptoKey(const Vector<uint8_t>&, bool& succeeded, Vector<uint8_t>&);
 992     void unwrapCryptoKey(const Vector<uint8_t>&, bool& succeeded, Vector<uint8_t>&);
 993 #endif
 994
 995     void takeSnapshot(WebCore::IntRect, WebCore::IntSize bitmapSize, SnapshotOptions, std::function<void (const ShareableBitmap::Handle&, CallbackBase::Error)>);
 996
 997     void navigationGestureDidBegin();
 998     void navigationGestureWillEnd(bool willNavigate, WebBackForwardListItem&);
 999     void navigationGestureDidEnd(bool willNavigate, WebBackForwardListItem&);
1000     void navigationGestureDidEnd();
1001     void navigationGestureSnapshotWasRemoved();
1002     void willRecordNavigationSnapshot(WebBackForwardListItem&);
1003
1004     bool isShowingNavigationGestureSnapshot() const { return m_isShowingNavigationGestureSnapshot; }
1005
1006     bool isPlayingAudio() const { return !!(m_mediaState & WebCore::MediaProducer::IsPlayingAudio); }
1007     void isPlayingMediaDidChange(WebCore::MediaProducer::MediaStateFlags, uint64_t);
1008
1009 #if ENABLE(MEDIA_SESSION)
1010     void hasMediaSessionWithActiveMediaElementsDidChange(bool);
1011     void mediaSessionMetadataDidChange(const WebCore::MediaSessionMetadata&);
1012     void focusedContentMediaElementDidChange(uint64_t);
1013 #endif
1014
1015 #if PLATFORM(MAC)
1016     void removeNavigationGestureSnapshot();
1017
1018     API::HitTestResult* lastMouseMoveHitTestResult() const { return m_lastMouseMoveHitTestResult.get(); }
1019     void performImmediateActionHitTestAtLocation(WebCore::FloatPoint);
1020
1021     void immediateActionDidUpdate();
1022     void immediateActionDidCancel();
1023     void immediateActionDidComplete();
1024
1025     void* immediateActionAnimationControllerForHitTestResult(RefPtr<API::HitTestResult>, uint64_t, RefPtr<API::Object>);
1026
1027     void installViewStateChangeCompletionHandler(void(^completionHandler)());
1028 #endif
1029
1030 #if PLATFORM(EFL) && HAVE(ACCESSIBILITY) && defined(HAVE_ECORE_X)
1031     bool accessibilityObjectReadByPoint(const WebCore::IntPoint&);
1032     bool accessibilityObjectReadPrevious();
1033     bool accessibilityObjectReadNext();
1034 #endif
1035
1036 #if USE(UNIFIED_TEXT_CHECKING)
1037     void checkTextOfParagraph(const String& text, uint64_t checkingTypes, Vector<WebCore::TextCheckingResult>& results);
1038 #endif
1039     void getGuessesForWord(const String& word, const String& context, Vector<String>& guesses);
1040
1041     void setShouldDispatchFakeMouseMoveEvents(bool);
1042
1043     // Diagnostic messages logging.
1044     void logDiagnosticMessage(const String& message, const String& description, bool shouldSample);
1045     void logDiagnosticMessageWithResult(const String& message, const String& description, uint32_t result, bool shouldSample);
1046     void logDiagnosticMessageWithValue(const String& message, const String& description, const String& value, bool shouldSample);
1047     void logSampledDiagnosticMessage(const String& message, const String& description);
1048     void logSampledDiagnosticMessageWithResult(const String& message, const String& description, uint32_t result);
1049     void logSampledDiagnosticMessageWithValue(const String& message, const String& description, const String& value);
1050
1051 #if ENABLE(WIRELESS_PLAYBACK_TARGET) && !PLATFORM(IOS)
1052     void addPlaybackTargetPickerClient(uint64_t);
1053     void removePlaybackTargetPickerClient(uint64_t);
1054     void showPlaybackTargetPicker(uint64_t, const WebCore::FloatRect&, bool hasVideo);
1055     void playbackTargetPickerClientStateDidChange(uint64_t, WebCore::MediaProducer::MediaStateFlags);
1056
1057     // WebMediaSessionManagerClient
1058     virtual void setPlaybackTarget(uint64_t, Ref<WebCore::MediaPlaybackTarget>&&) override;
1059     virtual void externalOutputDeviceAvailableDidChange(uint64_t, bool) override;
1060     virtual void setShouldPlayToPlaybackTarget(uint64_t, bool) override;
1061 #endif
1062
1063     void didChangeBackgroundColor();
1064     void didLayoutForCustomContentProvider();
1065
1066     // For testing
1067     void clearWheelEventTestTrigger();
1068     void callAfterNextPresentationUpdate(std::function<void (CallbackBase::Error)>);
1069
1070     void didLayout(uint32_t layoutMilestones);
1071
1072 private:
1073     WebPageProxy(PageClient&, WebProcessProxy&, uint64_t pageID, Ref<API::PageConfiguration>&&);
1074     void platformInitialize();
1075
1076     void updateViewState(WebCore::ViewState::Flags flagsToUpdate = WebCore::ViewState::AllFlags);
1077     void updateActivityToken();
1078     void updateProccessSuppressionState();
1079
1080     enum class ResetStateReason {
1081         PageInvalidated,
1082         WebProcessExited,
1083     };
1084     void resetState(ResetStateReason);
1085     void resetStateAfterProcessExited();
1086
1087     void setUserAgent(const String&);
1088
1089     // IPC::MessageReceiver
1090     // Implemented in generated WebPageProxyMessageReceiver.cpp
1091     virtual void didReceiveMessage(IPC::Connection&, IPC::MessageDecoder&) override;
1092     virtual void didReceiveSyncMessage(IPC::Connection&, IPC::MessageDecoder&, std::unique_ptr<IPC::MessageEncoder>&) override;
1093
1094     // IPC::MessageSender
1095     virtual bool sendMessage(std::unique_ptr<IPC::MessageEncoder>, unsigned messageSendFlags) override;
1096     virtual IPC::Connection* messageSenderConnection() override;
1097     virtual uint64_t messageSenderDestinationID() override;
1098
1099     // WebPopupMenuProxy::Client
1100     virtual void valueChangedForPopupMenu(WebPopupMenuProxy*, int32_t newSelectedIndex) override;
1101     virtual void setTextFromItemForPopupMenu(WebPopupMenuProxy*, int32_t index) override;
1102 #if PLATFORM(GTK)
1103     virtual void failedToShowPopupMenu() override;
1104 #endif
1105
1106     void didCreateMainFrame(uint64_t frameID);
1107     void didCreateSubframe(uint64_t frameID);
1108
1109     void didStartProvisionalLoadForFrame(uint64_t frameID, uint64_t navigationID, const String& url, const String& unreachableURL, const UserData&);
1110     void didReceiveServerRedirectForProvisionalLoadForFrame(uint64_t frameID, uint64_t navigationID, const String&, const UserData&);
1111     void didChangeProvisionalURLForFrame(uint64_t frameID, uint64_t navigationID, const String& url);
1112     void didFailProvisionalLoadForFrame(uint64_t frameID, const WebCore::SecurityOriginData& frameSecurityOrigin, uint64_t navigationID, const String& provisionalURL, const WebCore::ResourceError&, const UserData&);
1113     void didCommitLoadForFrame(uint64_t frameID, uint64_t navigationID, const String& mimeType, bool frameHasCustomContentProvider, uint32_t frameLoadType, const WebCore::CertificateInfo&, bool containsPluginDocument, const UserData&);
1114     void didFinishDocumentLoadForFrame(uint64_t frameID, uint64_t navigationID, const UserData&);
1115     void didFinishLoadForFrame(uint64_t frameID, uint64_t navigationID, const UserData&);
1116     void didFailLoadForFrame(uint64_t frameID, uint64_t navigationID, const WebCore::ResourceError&, const UserData&);
1117     void didSameDocumentNavigationForFrame(uint64_t frameID, uint64_t navigationID, uint32_t sameDocumentNavigationType, const String&, const UserData&);
1118     void didReceiveTitleForFrame(uint64_t frameID, const String&, const UserData&);
1119     void didFirstLayoutForFrame(uint64_t frameID, const UserData&);
1120     void didFirstVisuallyNonEmptyLayoutForFrame(uint64_t frameID, const UserData&);
1121     void didRemoveFrameFromHierarchy(uint64_t frameID, const UserData&);
1122     void didDisplayInsecureContentForFrame(uint64_t frameID, const UserData&);
1123     void didRunInsecureContentForFrame(uint64_t frameID, const UserData&);
1124     void didDetectXSSForFrame(uint64_t frameID, const UserData&);
1125     void frameDidBecomeFrameSet(uint64_t frameID, bool);
1126     void didStartProgress();
1127     void didChangeProgress(double);
1128     void didFinishProgress();
1129     void setNetworkRequestsInProgress(bool);
1130
1131     void didDestroyNavigation(uint64_t navigationID);
1132
1133     void decidePolicyForNavigationAction(uint64_t frameID, const WebCore::SecurityOriginData& frameSecurityOrigin, uint64_t navigationID, const NavigationActionData&, uint64_t originatingFrameID, const WebCore::SecurityOriginData& originatingFrameSecurityOrigin, const WebCore::ResourceRequest& originalRequest, const WebCore::ResourceRequest&, uint64_t listenerID, const UserData&, bool& receivedPolicyAction, uint64_t& newNavigationID, uint64_t& policyAction, uint64_t& downloadID);
1134     void decidePolicyForNewWindowAction(uint64_t frameID, const WebCore::SecurityOriginData& frameSecurityOrigin, const NavigationActionData&, const WebCore::ResourceRequest&, const String& frameName, uint64_t listenerID, const UserData&);
1135     void decidePolicyForResponse(uint64_t frameID, const WebCore::SecurityOriginData& frameSecurityOrigin, const WebCore::ResourceResponse&, const WebCore::ResourceRequest&, bool canShowMIMEType, uint64_t listenerID, const UserData&);
1136     void decidePolicyForResponseSync(uint64_t frameID, const WebCore::SecurityOriginData& frameSecurityOrigin, const WebCore::ResourceResponse&, const WebCore::ResourceRequest&, bool canShowMIMEType, uint64_t listenerID, const UserData&, bool& receivedPolicyAction, uint64_t& policyAction, uint64_t& downloadID);
1137     void unableToImplementPolicy(uint64_t frameID, const WebCore::ResourceError&, const UserData&);
1138
1139     void willSubmitForm(uint64_t frameID, uint64_t sourceFrameID, const Vector<std::pair<String, String>>& textFieldValues, uint64_t listenerID, const UserData&);
1140
1141     // History client
1142     void didNavigateWithNavigationData(const WebNavigationDataStore&, uint64_t frameID);
1143     void didPerformClientRedirect(const String& sourceURLString, const String& destinationURLString, uint64_t frameID);
1144     void didPerformServerRedirect(const String& sourceURLString, const String& destinationURLString, uint64_t frameID);
1145     void didUpdateHistoryTitle(const String& title, const String& url, uint64_t frameID);
1146
1147     // UI client
1148     void createNewPage(uint64_t frameID, const WebCore::SecurityOriginData&, const WebCore::ResourceRequest&, const WebCore::WindowFeatures&, const NavigationActionData&, uint64_t& newPageID, WebPageCreationParameters&);
1149     void showPage();
1150     void closePage(bool stopResponsivenessTimer);
1151     void runJavaScriptAlert(uint64_t frameID, const WebCore::SecurityOriginData&, const String&, RefPtr<Messages::WebPageProxy::RunJavaScriptAlert::DelayedReply>);
1152     void runJavaScriptConfirm(uint64_t frameID, const WebCore::SecurityOriginData&, const String&, RefPtr<Messages::WebPageProxy::RunJavaScriptConfirm::DelayedReply>);
1153     void runJavaScriptPrompt(uint64_t frameID, const WebCore::SecurityOriginData&, const String&, const String&, RefPtr<Messages::WebPageProxy::RunJavaScriptPrompt::DelayedReply>);
1154     void setStatusText(const String&);
1155     void mouseDidMoveOverElement(const WebHitTestResultData&, uint32_t modifiers, const UserData&);
1156
1157     void didBeginTrackingPotentialLongMousePress(const WebCore::IntPoint& mouseDownPosition, const WebHitTestResultData&, const UserData&);
1158     void didRecognizeLongMousePress(const UserData&);
1159     void didCancelTrackingPotentialLongMousePress(const UserData&);
1160
1161 #if ENABLE(NETSCAPE_PLUGIN_API)
1162     void unavailablePluginButtonClicked(uint32_t opaquePluginUnavailabilityReason, const String& mimeType, const String& pluginURLString, const String& pluginsPageURLString, const String& frameURLString, const String& pageURLString);
1163 #endif // ENABLE(NETSCAPE_PLUGIN_API)
1164 #if ENABLE(WEBGL)
1165     void webGLPolicyForURL(const String& url, uint32_t& loadPolicy);
1166     void resolveWebGLPolicyForURL(const String& url, uint32_t& loadPolicy);
1167 #endif // ENABLE(WEBGL)
1168     void setToolbarsAreVisible(bool toolbarsAreVisible);
1169     void getToolbarsAreVisible(bool& toolbarsAreVisible);
1170     void setMenuBarIsVisible(bool menuBarIsVisible);
1171     void getMenuBarIsVisible(bool& menuBarIsVisible);
1172     void setStatusBarIsVisible(bool statusBarIsVisible);
1173     void getStatusBarIsVisible(bool& statusBarIsVisible);
1174     void setIsResizable(bool isResizable);
1175     void getIsResizable(bool& isResizable);
1176     void setWindowFrame(const WebCore::FloatRect&);
1177     void getWindowFrame(WebCore::FloatRect&);
1178     void screenToRootView(const WebCore::IntPoint& screenPoint, WebCore::IntPoint& windowPoint);
1179     void rootViewToScreen(const WebCore::IntRect& viewRect, WebCore::IntRect& result);
1180 #if PLATFORM(IOS)
1181     void accessibilityScreenToRootView(const WebCore::IntPoint& screenPoint, WebCore::IntPoint& windowPoint);
1182     void rootViewToAccessibilityScreen(const WebCore::IntRect& viewRect, WebCore::IntRect& result);
1183 #endif
1184     void runBeforeUnloadConfirmPanel(const String& message, uint64_t frameID, bool& shouldClose);
1185     void didChangeViewportProperties(const WebCore::ViewportAttributes&);
1186     void pageDidScroll();
1187     void runOpenPanel(uint64_t frameID, const WebCore::FileChooserSettings&);
1188     void printFrame(uint64_t frameID);
1189     void exceededDatabaseQuota(uint64_t frameID, const String& originIdentifier, const String& databaseName, const String& displayName, uint64_t currentQuota, uint64_t currentOriginUsage, uint64_t currentDatabaseUsage, uint64_t expectedUsage, PassRefPtr<Messages::WebPageProxy::ExceededDatabaseQuota::DelayedReply>);
1190     void reachedApplicationCacheOriginQuota(const String& originIdentifier, uint64_t currentQuota, uint64_t totalBytesNeeded, PassRefPtr<Messages::WebPageProxy::ReachedApplicationCacheOriginQuota::DelayedReply>);
1191     void requestGeolocationPermissionForFrame(uint64_t geolocationID, uint64_t frameID, String originIdentifier);
1192
1193     void requestUserMediaPermissionForFrame(uint64_t userMediaID, uint64_t frameID, String originIdentifier, const Vector<String>& audioDeviceUIDs, const Vector<String>& videoDeviceUIDs);
1194
1195     void runModal();
1196     void notifyScrollerThumbIsVisibleInRect(const WebCore::IntRect&);
1197     void recommendedScrollbarStyleDidChange(int32_t newStyle);
1198     void didChangeScrollbarsForMainFrame(bool hasHorizontalScrollbar, bool hasVerticalScrollbar);
1199     void didChangeScrollOffsetPinningForMainFrame(bool pinnedToLeftSide, bool pinnedToRightSide, bool pinnedToTopSide, bool pinnedToBottomSide);
1200     void didChangePageCount(unsigned);
1201     void pageExtendedBackgroundColorDidChange(const WebCore::Color&);
1202 #if ENABLE(NETSCAPE_PLUGIN_API)
1203     void didFailToInitializePlugin(const String& mimeType, const String& frameURLString, const String& pageURLString);
1204     void didBlockInsecurePluginVersion(const String& mimeType, const String& pluginURLString, const String& frameURLString, const String& pageURLString, bool replacementObscured);
1205 #endif // ENABLE(NETSCAPE_PLUGIN_API)
1206     void setCanShortCircuitHorizontalWheelEvents(bool canShortCircuitHorizontalWheelEvents) { m_canShortCircuitHorizontalWheelEvents = canShortCircuitHorizontalWheelEvents; }
1207
1208     void reattachToWebProcess();
1209     RefPtr<API::Navigation> reattachToWebProcessForReload();
1210     RefPtr<API::Navigation> reattachToWebProcessWithItem(WebBackForwardListItem*);
1211
1212     void requestNotificationPermission(uint64_t notificationID, const String& originString);
1213     void showNotification(const String& title, const String& body, const String& iconURL, const String& tag, const String& lang, const String& dir, const String& originString, uint64_t notificationID);
1214     void cancelNotification(uint64_t notificationID);
1215     void clearNotifications(const Vector<uint64_t>& notificationIDs);
1216     void didDestroyNotification(uint64_t notificationID);
1217
1218 #if USE(COORDINATED_GRAPHICS_MULTIPROCESS)
1219     void pageDidRequestScroll(const WebCore::IntPoint&);
1220     void pageTransitionViewportReady();
1221     void didFindZoomableArea(const WebCore::IntPoint&, const WebCore::IntRect&);
1222 #endif
1223
1224     void didChangeContentSize(const WebCore::IntSize&);
1225
1226 #if ENABLE(INPUT_TYPE_COLOR)
1227     void showColorPicker(const WebCore::Color& initialColor, const WebCore::IntRect&);
1228     virtual void didChooseColor(const WebCore::Color&) override;
1229     virtual void didEndColorPicker() override;
1230 #endif
1231
1232     void editorStateChanged(const EditorState&);
1233     void compositionWasCanceled(const EditorState&);
1234
1235     // Back/Forward list management
1236     void backForwardAddItem(uint64_t itemID);
1237     void backForwardGoToItem(uint64_t itemID, SandboxExtension::Handle&);
1238     void backForwardItemAtIndex(int32_t index, uint64_t& itemID);
1239     void backForwardBackListCount(int32_t& count);
1240     void backForwardForwardListCount(int32_t& count);
1241     void backForwardClear();
1242
1243     // Undo management
1244     void registerEditCommandForUndo(uint64_t commandID, uint32_t editAction);
1245     void registerInsertionUndoGrouping();
1246     void clearAllEditCommands();
1247     void canUndoRedo(uint32_t action, bool& result);
1248     void executeUndoRedo(uint32_t action, bool& result);
1249
1250     // Keyboard handling
1251 #if PLATFORM(COCOA)
1252     void executeSavedCommandBySelector(const String& selector, bool& handled);
1253 #endif
1254
1255 #if PLATFORM(GTK)
1256     void getEditorCommandsForKeyEvent(const AtomicString&, Vector<String>&);
1257     void bindAccessibilityTree(const String&);
1258 #endif
1259 #if PLATFORM(EFL)
1260     void getEditorCommandsForKeyEvent(Vector<String>&);
1261 #endif
1262
1263     // Popup Menu.
1264     void showPopupMenu(const WebCore::IntRect& rect, uint64_t textDirection, const Vector<WebPopupItem>& items, int32_t selectedIndex, const PlatformPopupMenuData&);
1265     void hidePopupMenu();
1266
1267 #if ENABLE(CONTEXT_MENUS)
1268     enum class ContextMenuClientEligibility {
1269         EligibleForClient,
1270         NotEligibleForClient
1271     };
1272     void showContextMenu(const WebCore::IntPoint& menuLocation, const ContextMenuContextData&, const Vector<WebContextMenuItemData>&, const UserData&);
1273     void internalShowContextMenu(const WebCore::IntPoint& menuLocation, const ContextMenuContextData&, const Vector<WebContextMenuItemData>&, ContextMenuClientEligibility, const UserData&);
1274     WebCore::ContextMenuItem platformInitializeShareMenuItem(const ContextMenuContextData&);
1275 #endif
1276
1277 #if ENABLE(TELEPHONE_NUMBER_DETECTION)
1278 #if PLATFORM(MAC)
1279     void showTelephoneNumberMenu(const String& telephoneNumber, const WebCore::IntPoint&);
1280 #endif
1281 #endif
1282
1283 #if ENABLE(SERVICE_CONTROLS)
1284     void showSelectionServiceMenu(const IPC::DataReference& selectionAsRTFD, const Vector<String>& telephoneNumbers, bool isEditable, const WebCore::IntPoint&);
1285 #endif
1286
1287     // Search popup results
1288     void saveRecentSearches(const String&, const Vector<String>&);
1289     void loadRecentSearches(const String&, Vector<String>&);
1290
1291 #if PLATFORM(COCOA)
1292     // Speech.
1293     void getIsSpeaking(bool&);
1294     void speak(const String&);
1295     void stopSpeaking();
1296
1297     // Spotlight.
1298     void searchWithSpotlight(const String&);
1299
1300     void searchTheWeb(const String&);
1301
1302     // Dictionary.
1303     void didPerformDictionaryLookup(const WebCore::DictionaryPopupInfo&);
1304 #endif
1305
1306 #if PLATFORM(MAC)
1307     bool appleMailPaginationQuirkEnabled();
1308 #endif
1309
1310     // Spelling and grammar.
1311     void checkSpellingOfString(const String& text, int32_t& misspellingLocation, int32_t& misspellingLength);
1312     void checkGrammarOfString(const String& text, Vector<WebCore::GrammarDetail>&, int32_t& badGrammarLocation, int32_t& badGrammarLength);
1313     void spellingUIIsShowing(bool&);
1314     void updateSpellingUIWithMisspelledWord(const String& misspelledWord);
1315     void updateSpellingUIWithGrammarString(const String& badGrammarPhrase, const WebCore::GrammarDetail&);
1316     void learnWord(const String& word);
1317     void ignoreWord(const String& word);
1318     void requestCheckingOfString(uint64_t requestID, const WebCore::TextCheckingRequestData&);
1319
1320     void setFocus(bool focused);
1321     void takeFocus(uint32_t direction);
1322     void setToolTip(const String&);
1323     void setCursor(const WebCore::Cursor&);
1324     void setCursorHiddenUntilMouseMoves(bool);
1325
1326     void didReceiveEvent(uint32_t opaqueType, bool handled);
1327     void stopResponsivenessTimer();
1328
1329     void voidCallback(uint64_t);
1330     void dataCallback(const IPC::DataReference&, uint64_t);
1331     void imageCallback(const ShareableBitmap::Handle&, uint64_t);
1332     void stringCallback(const String&, uint64_t);
1333     void scriptValueCallback(const IPC::DataReference&, bool hadException, uint64_t);
1334     void computedPagesCallback(const Vector<WebCore::IntRect>&, double totalScaleFactorForPrinting, uint64_t);
1335     void validateCommandCallback(const String&, bool, int, uint64_t);
1336     void unsignedCallback(uint64_t, uint64_t);
1337     void editingRangeCallback(const EditingRange&, uint64_t);
1338 #if PLATFORM(COCOA)
1339     void machSendRightCallback(const WebCore::MachSendRight&, uint64_t);
1340 #endif
1341     void rectForCharacterRangeCallback(const WebCore::IntRect&, const EditingRange&, uint64_t);
1342 #if PLATFORM(MAC)
1343     void attributedStringForCharacterRangeCallback(const AttributedString&, const EditingRange&, uint64_t);
1344     void fontAtSelectionCallback(const String&, double, bool, uint64_t);
1345 #endif
1346 #if PLATFORM(IOS)
1347     void gestureCallback(const WebCore::IntPoint&, uint32_t, uint32_t, uint32_t, uint64_t);
1348     void touchesCallback(const WebCore::IntPoint&, uint32_t, uint64_t);
1349     void autocorrectionDataCallback(const Vector<WebCore::FloatRect>&, const String&, float, uint64_t, uint64_t);
1350     void autocorrectionContextCallback(const String&, const String&, const String&, const String&, uint64_t, uint64_t, uint64_t);
1351     void dictationContextCallback(const String&, const String&, const String&, uint64_t);
1352     void interpretKeyEvent(const EditorState&, bool isCharEvent, bool& handled);
1353     void showPlaybackTargetPicker(bool hasVideo, const WebCore::IntRect& elementRect);
1354 #endif
1355 #if PLATFORM(GTK)
1356     void printFinishedCallback(const WebCore::ResourceError&, uint64_t);
1357 #endif
1358
1359     void focusedFrameChanged(uint64_t frameID);
1360     void frameSetLargestFrameChanged(uint64_t frameID);
1361
1362     void canAuthenticateAgainstProtectionSpaceInFrame(uint64_t frameID, const WebCore::ProtectionSpace&, bool& canAuthenticate);
1363     void didReceiveAuthenticationChallenge(uint64_t frameID, const WebCore::AuthenticationChallenge&, uint64_t challengeID);
1364
1365     void didFinishLoadingDataForCustomContentProvider(const String& suggestedFilename, const IPC::DataReference&);
1366
1367 #if PLATFORM(COCOA)
1368     void pluginFocusOrWindowFocusChanged(uint64_t pluginComplexTextInputIdentifier, bool pluginHasFocusAndWindowHasFocus);
1369     void setPluginComplexTextInputState(uint64_t pluginComplexTextInputIdentifier, uint64_t complexTextInputState);
1370 #endif
1371
1372     bool maybeInitializeSandboxExtensionHandle(const WebCore::URL&, SandboxExtension::Handle&);
1373
1374 #if PLATFORM(MAC)
1375     void substitutionsPanelIsShowing(bool&);
1376     void showCorrectionPanel(int32_t panelType, const WebCore::FloatRect& boundingBoxOfReplacedString, const String& replacedString, const String& replacementString, const Vector<String>& alternativeReplacementStrings);
1377     void dismissCorrectionPanel(int32_t reason);
1378     void dismissCorrectionPanelSoon(int32_t reason, String& result);
1379     void recordAutocorrectionResponse(int32_t responseType, const String& replacedString, const String& replacementString);
1380
1381 #if USE(DICTATION_ALTERNATIVES)
1382     void showDictationAlternativeUI(const WebCore::FloatRect& boundingBoxOfDictatedText, uint64_t dictationContext);
1383     void removeDictationAlternatives(uint64_t dictationContext);
1384     void dictationAlternatives(uint64_t dictationContext, Vector<String>& result);
1385 #endif
1386 #endif // PLATFORM(MAC)
1387
1388 #if PLATFORM(IOS)
1389     WebCore::FloatSize screenSize();
1390     WebCore::FloatSize availableScreenSize();
1391     float textAutosizingWidth();
1392
1393     void dynamicViewportUpdateChangedTarget(double newTargetScale, const WebCore::FloatPoint& newScrollPosition, uint64_t dynamicViewportSizeUpdateID);
1394     void couldNotRestorePageState();
1395     void restorePageState(const WebCore::FloatRect&, double scale);
1396     void restorePageCenterAndScale(const WebCore::FloatPoint&, double scale);
1397
1398     void didGetTapHighlightGeometries(uint64_t requestID, const WebCore::Color& color, const Vector<WebCore::FloatQuad>& geometries, const WebCore::IntSize& topLeftRadius, const WebCore::IntSize& topRightRadius, const WebCore::IntSize& bottomLeftRadius, const WebCore::IntSize& bottomRightRadius);
1399
1400     void startAssistingNode(const AssistedNodeInformation&, bool userIsInteracting, bool blurPreviousNode, const UserData&);
1401     void stopAssistingNode();
1402
1403     void showInspectorHighlight(const WebCore::Highlight&);
1404     void hideInspectorHighlight();
1405
1406     void showInspectorIndication();
1407     void hideInspectorIndication();
1408
1409     void enableInspectorNodeSearch();
1410     void disableInspectorNodeSearch();
1411 #endif // PLATFORM(IOS)
1412
1413     void clearLoadDependentCallbacks();
1414
1415     void performDragControllerAction(DragControllerAction, WebCore::DragData&, const String& dragStorageName, const SandboxExtension::Handle&, const SandboxExtension::HandleArray&);
1416
1417     void updateBackingStoreDiscardableState();
1418
1419     void setRenderTreeSize(uint64_t treeSize) { m_renderTreeSize = treeSize; }
1420
1421 #if PLUGIN_ARCHITECTURE(X11)
1422     void createPluginContainer(uint64_t& windowID);
1423     void windowedPluginGeometryDidChange(const WebCore::IntRect& frameRect, const WebCore::IntRect& clipRect, uint64_t windowID);
1424     void windowedPluginVisibilityDidChange(bool isVisible, uint64_t windowID);
1425 #endif
1426
1427     void processNextQueuedWheelEvent();
1428     void sendWheelEvent(const WebWheelEvent&);
1429
1430 #if ENABLE(TOUCH_EVENTS)
1431     bool shouldStartTrackingTouchEvents(const WebTouchEvent&) const;
1432 #endif
1433
1434 #if ENABLE(NETSCAPE_PLUGIN_API)
1435     void findPlugin(const String& mimeType, uint32_t processType, const String& urlString, const String& frameURLString, const String& pageURLString, bool allowOnlyApplicationPlugins, uint64_t& pluginProcessToken, String& newMIMEType, uint32_t& pluginLoadPolicy, String& unavailabilityDescription);
1436 #endif
1437
1438 #if USE(QUICK_LOOK)
1439     void didStartLoadForQuickLookDocumentInMainFrame(const String& fileName, const String& uti);
1440     void didFinishLoadForQuickLookDocumentInMainFrame(const QuickLookDocumentData&);
1441 #endif
1442
1443 #if ENABLE(CONTENT_FILTERING)
1444     void contentFilterDidBlockLoadForFrame(const WebCore::ContentFilterUnblockHandler&, uint64_t frameID);
1445 #endif
1446
1447     uint64_t generateNavigationID();
1448
1449     WebPreferencesStore preferencesStore() const;
1450
1451     void dispatchViewStateChange();
1452     void viewDidLeaveWindow();
1453     void viewDidEnterWindow();
1454
1455 #if PLATFORM(MAC)
1456     void didPerformImmediateActionHitTest(const WebHitTestResultData&, bool contentPreventsDefault, const UserData&);
1457 #endif
1458
1459     void useFixedLayoutDidChange(bool useFixedLayout) { m_useFixedLayout = useFixedLayout; }
1460     void fixedLayoutSizeDidChange(WebCore::IntSize fixedLayoutSize) { m_fixedLayoutSize = fixedLayoutSize; }
1461
1462     void imageOrMediaDocumentSizeChanged(const WebCore::IntSize&);
1463 #if ENABLE(VIDEO)
1464 #if USE(GSTREAMER)
1465     void requestInstallMissingMediaPlugins(const String& details, const String& description);
1466 #endif
1467 #endif
1468
1469     void handleAutoFillButtonClick(const UserData&);
1470
1471     void handleMessage(IPC::Connection&, const String& messageName, const UserData& messageBody);
1472     void handleSynchronousMessage(IPC::Connection&, const String& messageName, const UserData& messageBody, UserData& returnUserData);
1473
1474     PageClient& m_pageClient;
1475     Ref<API::PageConfiguration> m_configuration;
1476
1477     std::unique_ptr<API::LoaderClient> m_loaderClient;
1478     std::unique_ptr<API::PolicyClient> m_policyClient;
1479     std::unique_ptr<API::NavigationClient> m_navigationClient;
1480     std::unique_ptr<API::HistoryClient> m_historyClient;
1481     std::unique_ptr<API::FormClient> m_formClient;
1482     std::unique_ptr<API::UIClient> m_uiClient;
1483 #if PLATFORM(EFL)
1484     WebUIPopupMenuClient m_uiPopupMenuClient;
1485 #endif
1486     std::unique_ptr<API::FindClient> m_findClient;
1487     WebFindMatchesClient m_findMatchesClient;
1488     std::unique_ptr<API::DiagnosticLoggingClient> m_diagnosticLoggingClient;
1489 #if ENABLE(CONTEXT_MENUS)
1490     std::unique_ptr<API::ContextMenuClient> m_contextMenuClient;
1491 #endif
1492     std::unique_ptr<WebPageInjectedBundleClient> m_injectedBundleClient;
1493
1494     std::unique_ptr<WebNavigationState> m_navigationState;
1495     String m_failingProvisionalLoadURL;
1496
1497     std::unique_ptr<DrawingAreaProxy> m_drawingArea;
1498 #if ENABLE(ASYNC_SCROLLING)
1499     std::unique_ptr<RemoteScrollingCoordinatorProxy> m_scrollingCoordinatorProxy;
1500 #endif
1501
1502     Ref<WebProcessProxy> m_process;
1503     Ref<WebPageGroup> m_pageGroup;
1504     Ref<WebPreferences> m_preferences;
1505
1506     WebProcessLifetimeTracker m_webProcessLifetimeTracker { *this };
1507
1508     const RefPtr<WebUserContentControllerProxy> m_userContentController;
1509     Ref<VisitedLinkStore> m_visitedLinkStore;
1510     Ref<WebsiteDataStore> m_websiteDataStore;
1511
1512     RefPtr<WebFrameProxy> m_mainFrame;
1513     RefPtr<WebFrameProxy> m_focusedFrame;
1514     RefPtr<WebFrameProxy> m_frameSetLargestFrame;
1515
1516     String m_userAgent;
1517     String m_applicationNameForUserAgent;
1518     String m_customUserAgent;
1519     String m_customTextEncodingName;
1520
1521     bool m_treatsSHA1CertificatesAsInsecure;
1522
1523     RefPtr<WebInspectorProxy> m_inspector;
1524
1525 #if ENABLE(FULLSCREEN_API)
1526     RefPtr<WebFullScreenManagerProxy> m_fullScreenManager;
1527 #endif
1528 #if PLATFORM(IOS)
1529     RefPtr<WebVideoFullscreenManagerProxy> m_videoFullscreenManager;
1530     VisibleContentRectUpdateInfo m_lastVisibleContentRectUpdate;
1531     bool m_hasReceivedLayerTreeTransactionAfterDidCommitLoad;
1532     uint64_t m_firstLayerTreeTransactionIdAfterDidCommitLoad;
1533     int32_t m_deviceOrientation;
1534     bool m_dynamicViewportSizeUpdateWaitingForTarget;
1535     bool m_dynamicViewportSizeUpdateWaitingForLayerTreeCommit;
1536     uint64_t m_dynamicViewportSizeUpdateLayerTreeTransactionID;
1537     uint64_t m_layerTreeTransactionIdAtLastTouchStart;
1538     uint64_t m_currentDynamicViewportSizeUpdateID { 0 };
1539     bool m_hasNetworkRequestsOnSuspended;
1540 #endif
1541
1542 #if ENABLE(VIBRATION)
1543     RefPtr<WebVibrationProxy> m_vibration;
1544 #endif
1545
1546     CallbackMap m_callbacks;
1547     HashSet<uint64_t> m_loadDependentStringCallbackIDs;
1548
1549     HashSet<WebEditCommandProxy*> m_editCommandSet;
1550
1551 #if PLATFORM(COCOA)
1552     HashSet<String> m_knownKeypressCommandNames;
1553 #endif
1554
1555     RefPtr<WebPopupMenuProxy> m_activePopupMenu;
1556 #if ENABLE(CONTEXT_MENUS)
1557     RefPtr<WebContextMenuProxy> m_activeContextMenu;
1558     ContextMenuContextData m_activeContextMenuContextData;
1559 #endif
1560     RefPtr<API::HitTestResult> m_lastMouseMoveHitTestResult;
1561
1562     RefPtr<WebOpenPanelResultListenerProxy> m_openPanelResultListener;
1563     GeolocationPermissionRequestManagerProxy m_geolocationPermissionRequestManager;
1564     NotificationPermissionRequestManagerProxy m_notificationPermissionRequestManager;
1565
1566     UserMediaPermissionRequestManagerProxy m_userMediaPermissionRequestManager;
1567
1568     WebCore::ViewState::Flags m_viewState;
1569     bool m_viewWasEverInWindow;
1570 #if PLATFORM(IOS)
1571     bool m_allowsMediaDocumentInlinePlayback { false };
1572     bool m_alwaysRunsAtForegroundPriority;
1573     ProcessThrottler::ForegroundActivityToken m_activityToken;
1574 #endif
1575
1576     Ref<WebBackForwardList> m_backForwardList;
1577
1578     bool m_maintainsInactiveSelection;
1579
1580     String m_toolTip;
1581
1582     EditorState m_editorState;
1583     bool m_isEditable;
1584 #if PLATFORM(MAC) && !USE(ASYNC_NSTEXTINPUTCLIENT)
1585     bool m_temporarilyClosedComposition; // Editor state changed from hasComposition to !hasComposition, but that was only with shouldIgnoreCompositionSelectionChange yet.
1586 #endif
1587
1588     double m_textZoomFactor;
1589     double m_pageZoomFactor;
1590     double m_pageScaleFactor;
1591     double m_pluginZoomFactor;
1592     double m_pluginScaleFactor;
1593     double m_viewScaleFactor { 1 };
1594     float m_intrinsicDeviceScaleFactor;
1595     float m_customDeviceScaleFactor;
1596     float m_topContentInset;
1597
1598     LayerHostingMode m_layerHostingMode;
1599
1600     bool m_drawsBackground;
1601     bool m_drawsTransparentBackground;
1602
1603     WebCore::Color m_underlayColor;
1604     WebCore::Color m_pageExtendedBackgroundColor;
1605
1606     bool m_useFixedLayout;
1607     WebCore::IntSize m_fixedLayoutSize;
1608
1609     bool m_suppressScrollbarAnimations;
1610
1611     WebCore::Pagination::Mode m_paginationMode;
1612     bool m_paginationBehavesLikeColumns;
1613     double m_pageLength;
1614     double m_gapBetweenPages;
1615
1616     // If the process backing the web page is alive and kicking.
1617     bool m_isValid;
1618
1619     // Whether WebPageProxy::close() has been called on this page.
1620     bool m_isClosed;
1621
1622     // Whether it can run modal child web pages.
1623     bool m_canRunModal;
1624
1625     bool m_isInPrintingMode;
1626     bool m_isPerformingDOMPrintOperation;
1627
1628     bool m_inDecidePolicyForResponseSync;
1629     const WebCore::ResourceRequest* m_decidePolicyForResponseRequest;
1630     bool m_syncMimeTypePolicyActionIsValid;
1631     WebCore::PolicyAction m_syncMimeTypePolicyAction;
1632     uint64_t m_syncMimeTypePolicyDownloadID;
1633
1634     bool m_inDecidePolicyForNavigationAction;
1635     bool m_syncNavigationActionPolicyActionIsValid;
1636     WebCore::PolicyAction m_syncNavigationActionPolicyAction;
1637     uint64_t m_syncNavigationActionPolicyDownloadID;
1638     bool m_shouldSuppressAppLinksInNextNavigationPolicyDecision { false };
1639
1640     Deque<NativeWebKeyboardEvent> m_keyEventQueue;
1641     Deque<NativeWebWheelEvent> m_wheelEventQueue;
1642     Deque<std::unique_ptr<Vector<NativeWebWheelEvent>>> m_currentlyProcessedWheelEvents;
1643
1644     bool m_processingMouseMoveEvent;
1645     std::unique_ptr<NativeWebMouseEvent> m_nextMouseMoveEvent;
1646     std::unique_ptr<NativeWebMouseEvent> m_currentlyProcessedMouseDownEvent;
1647
1648 #if ENABLE(TOUCH_EVENTS)
1649     bool m_isTrackingTouchEvents;
1650 #endif
1651 #if ENABLE(TOUCH_EVENTS) && !ENABLE(IOS_TOUCH_EVENTS)
1652     Deque<QueuedTouchEvents> m_touchEventQueue;
1653 #endif
1654
1655 #if ENABLE(INPUT_TYPE_COLOR)
1656     RefPtr<WebColorPicker> m_colorPicker;
1657 #endif
1658
1659     const uint64_t m_pageID;
1660     WebCore::SessionID m_sessionID;
1661
1662     bool m_isPageSuspended;
1663     bool m_addsVisitedLinks;
1664
1665 #if ENABLE(REMOTE_INSPECTOR)
1666     bool m_allowsRemoteInspection;
1667 #endif
1668
1669 #if PLATFORM(COCOA)
1670     bool m_isSmartInsertDeleteEnabled;
1671 #endif
1672
1673 #if PLATFORM(GTK)
1674     String m_accessibilityPlugID;
1675     WebCore::Color m_backgroundColor;
1676 #endif
1677
1678     int64_t m_spellDocumentTag;
1679     bool m_hasSpellDocumentTag;
1680     unsigned m_pendingLearnOrIgnoreWordMessageCount;
1681
1682     bool m_mainFrameHasCustomContentProvider;
1683
1684 #if ENABLE(DRAG_SUPPORT)
1685     // Current drag destination details are delivered as an asynchronous response,
1686     // so we preserve them to be used when the next dragging delegate call is made.
1687     WebCore::DragOperation m_currentDragOperation;
1688     bool m_currentDragIsOverFileInput;
1689     unsigned m_currentDragNumberOfFilesToBeAccepted;
1690 #endif
1691
1692     PageLoadState m_pageLoadState;
1693
1694     bool m_delegatesScrolling;
1695
1696     bool m_mainFrameHasHorizontalScrollbar;
1697     bool m_mainFrameHasVerticalScrollbar;
1698
1699     // Whether horizontal wheel events can be handled directly for swiping purposes.
1700     bool m_canShortCircuitHorizontalWheelEvents;
1701
1702     bool m_mainFrameIsPinnedToLeftSide;
1703     bool m_mainFrameIsPinnedToRightSide;
1704     bool m_mainFrameIsPinnedToTopSide;
1705     bool m_mainFrameIsPinnedToBottomSide;
1706
1707     bool m_shouldUseImplicitRubberBandControl;
1708     bool m_rubberBandsAtLeft;
1709     bool m_rubberBandsAtRight;
1710     bool m_rubberBandsAtTop;
1711     bool m_rubberBandsAtBottom;
1712
1713     bool m_enableVerticalRubberBanding;
1714     bool m_enableHorizontalRubberBanding;
1715
1716     bool m_backgroundExtendsBeyondPage;
1717
1718     bool m_shouldRecordNavigationSnapshots;
1719     bool m_isShowingNavigationGestureSnapshot;
1720
1721     unsigned m_pageCount;
1722
1723     WebCore::IntRect m_visibleScrollerThumbRect;
1724
1725     uint64_t m_renderTreeSize;
1726     uint64_t m_sessionRestorationRenderTreeSize;
1727     bool m_wantsSessionRestorationRenderTreeSizeThresholdEvent;
1728     bool m_hitRenderTreeSizeThreshold;
1729
1730     bool m_suppressVisibilityUpdates;
1731     bool m_autoSizingShouldExpandToViewHeight;
1732     WebCore::IntSize m_minimumLayoutSize;
1733
1734     float m_mediaVolume;
1735     bool m_muted;
1736     bool m_mayStartMediaWhenInWindow;
1737
1738     bool m_waitingForDidUpdateViewState;
1739
1740     bool m_shouldScaleViewToFitDocument { false };
1741     bool m_suppressNavigationSnapshotting { false };
1742
1743 #if PLATFORM(COCOA)
1744     HashMap<String, String> m_temporaryPDFFiles;
1745     std::unique_ptr<WebCore::RunLoopObserver> m_viewStateChangeDispatcher;
1746
1747     std::unique_ptr<RemoteLayerTreeScrollingPerformanceData> m_scrollingPerformanceData;
1748     bool m_scrollPerformanceDataCollectionEnabled;
1749 #endif
1750     UserObservablePageToken m_pageIsUserObservableCount;
1751     ProcessSuppressionDisabledToken m_preventProcessSuppressionCount;
1752
1753     WebCore::ScrollPinningBehavior m_scrollPinningBehavior;
1754     WTF::Optional<WebCore::ScrollbarOverlayStyle> m_scrollbarOverlayStyle;
1755
1756     uint64_t m_navigationID;
1757
1758     WebPreferencesStore::ValueMap m_configurationPreferenceValues;
1759     WebCore::ViewState::Flags m_potentiallyChangedViewStateFlags;
1760     bool m_viewStateChangeWantsSynchronousReply;
1761     Vector<uint64_t> m_nextViewStateChangeCallbacks;
1762
1763     WebCore::MediaProducer::MediaStateFlags m_mediaState { WebCore::MediaProducer::IsNotPlaying };
1764
1765 #if ENABLE(MEDIA_SESSION)
1766     bool m_hasMediaSessionWithActiveMediaElements { false };
1767 #endif
1768
1769 #if ENABLE(WIRELESS_PLAYBACK_TARGET) && !PLATFORM(IOS)
1770     bool m_requiresTargetMonitoring { false };
1771 #endif
1772
1773     bool m_userContentExtensionsEnabled { true };
1774
1775 #if PLATFORM(IOS)
1776     bool m_hasDeferredStartAssistingNode { false };
1777     std::unique_ptr<NodeAssistanceArguments> m_deferredNodeAssistanceArguments;
1778 #endif
1779 };
1780
1781 } // namespace WebKit
1782
1783 #endif // WebPageProxy_h