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