| /* |
| * Copyright (C) 2006-2017 Apple, Inc. All rights reserved. |
| * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
| * Copyright (C) 2012 Samsung Electronics. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #pragma once |
| |
| #include "AXObjectCache.h" |
| #include "Cursor.h" |
| #include "DatabaseDetails.h" |
| #include "DisplayRefreshMonitor.h" |
| #include "FocusDirection.h" |
| #include "FrameLoader.h" |
| #include "GraphicsContext.h" |
| #include "HTMLMediaElementEnums.h" |
| #include "HostWindow.h" |
| #include "LayerFlushThrottleState.h" |
| #include "MediaProducer.h" |
| #include "PopupMenu.h" |
| #include "PopupMenuClient.h" |
| #include "RenderEmbeddedObject.h" |
| #include "ScrollTypes.h" |
| #include "ScrollingCoordinator.h" |
| #include "SearchPopupMenu.h" |
| #include "WebCoreKeyboardUIMode.h" |
| #include <runtime/ConsoleTypes.h> |
| #include <wtf/Forward.h> |
| #include <wtf/Seconds.h> |
| #include <wtf/Vector.h> |
| |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| #include "MediaPlaybackTargetContext.h" |
| #endif |
| |
| #if PLATFORM(IOS) |
| #include "PlatformLayer.h" |
| #define NSResponder WAKResponder |
| #ifndef __OBJC__ |
| class WAKResponder; |
| #else |
| @class WAKResponder; |
| #endif |
| #endif |
| |
| OBJC_CLASS NSResponder; |
| |
| namespace WebCore { |
| |
| class AccessibilityObject; |
| class ColorChooser; |
| class ColorChooserClient; |
| class DateTimeChooser; |
| class DateTimeChooserClient; |
| class Element; |
| class FileChooser; |
| class FileIconLoader; |
| class FloatRect; |
| class Frame; |
| class Geolocation; |
| class GraphicsLayer; |
| class GraphicsLayerFactory; |
| class HTMLInputElement; |
| class HTMLMediaElement; |
| class HTMLVideoElement; |
| class HitTestResult; |
| class IntRect; |
| class MediaSessionMetadata; |
| class NavigationAction; |
| class Node; |
| class Page; |
| class PopupMenuClient; |
| class SecurityOrigin; |
| class ViewportConstraints; |
| class Widget; |
| |
| #if ENABLE(VIDEO) && USE(GSTREAMER) |
| class MediaPlayerRequestInstallMissingPluginsCallback; |
| #endif |
| |
| struct DateTimeChooserParameters; |
| struct FrameLoadRequest; |
| struct GraphicsDeviceAdapter; |
| struct ViewportArguments; |
| struct WindowFeatures; |
| |
| class WEBCORE_EXPORT ChromeClient { |
| public: |
| virtual void chromeDestroyed() = 0; |
| |
| virtual void setWindowRect(const FloatRect&) = 0; |
| virtual FloatRect windowRect() = 0; |
| |
| virtual FloatRect pageRect() = 0; |
| |
| virtual void focus() = 0; |
| virtual void unfocus() = 0; |
| |
| virtual bool canTakeFocus(FocusDirection) = 0; |
| virtual void takeFocus(FocusDirection) = 0; |
| |
| virtual void focusedElementChanged(Element*) = 0; |
| virtual void focusedFrameChanged(Frame*) = 0; |
| |
| // The Frame pointer provides the ChromeClient with context about which |
| // Frame wants to create the new Page. Also, the newly created window |
| // should not be shown to the user until the ChromeClient of the newly |
| // created Page has its show method called. |
| // The FrameLoadRequest parameter is only for ChromeClient to check if the |
| // request could be fulfilled. The ChromeClient should not load the request. |
| virtual Page* createWindow(Frame*, const FrameLoadRequest&, const WindowFeatures&, const NavigationAction&) = 0; |
| virtual void show() = 0; |
| |
| virtual bool canRunModal() = 0; |
| virtual void runModal() = 0; |
| |
| virtual void setToolbarsVisible(bool) = 0; |
| virtual bool toolbarsVisible() = 0; |
| |
| virtual void setStatusbarVisible(bool) = 0; |
| virtual bool statusbarVisible() = 0; |
| |
| virtual void setScrollbarsVisible(bool) = 0; |
| virtual bool scrollbarsVisible() = 0; |
| |
| virtual void setMenubarVisible(bool) = 0; |
| virtual bool menubarVisible() = 0; |
| |
| virtual void setResizable(bool) = 0; |
| |
| virtual void addMessageToConsole(MessageSource, MessageLevel, const String& message, unsigned lineNumber, unsigned columnNumber, const String& sourceID) = 0; |
| |
| virtual bool canRunBeforeUnloadConfirmPanel() = 0; |
| virtual bool runBeforeUnloadConfirmPanel(const String& message, Frame*) = 0; |
| |
| virtual void closeWindowSoon() = 0; |
| |
| virtual void runJavaScriptAlert(Frame*, const String&) = 0; |
| virtual bool runJavaScriptConfirm(Frame*, const String&) = 0; |
| virtual bool runJavaScriptPrompt(Frame*, const String& message, const String& defaultValue, String& result) = 0; |
| virtual void setStatusbarText(const String&) = 0; |
| virtual KeyboardUIMode keyboardUIMode() = 0; |
| |
| // Methods used by HostWindow. |
| virtual bool supportsImmediateInvalidation() { return false; } |
| virtual void invalidateRootView(const IntRect&) = 0; |
| virtual void invalidateContentsAndRootView(const IntRect&) = 0; |
| virtual void invalidateContentsForSlowScroll(const IntRect&) = 0; |
| virtual void scroll(const IntSize&, const IntRect&, const IntRect&) = 0; |
| #if USE(COORDINATED_GRAPHICS) |
| virtual void delegatedScrollRequested(const IntPoint&) = 0; |
| #endif |
| virtual IntPoint screenToRootView(const IntPoint&) const = 0; |
| virtual IntRect rootViewToScreen(const IntRect&) const = 0; |
| #if PLATFORM(IOS) |
| virtual IntPoint accessibilityScreenToRootView(const IntPoint&) const = 0; |
| virtual IntRect rootViewToAccessibilityScreen(const IntRect&) const = 0; |
| #endif |
| virtual PlatformPageClient platformPageClient() const = 0; |
| virtual void scrollbarsModeDidChange() const = 0; |
| #if ENABLE(CURSOR_SUPPORT) |
| virtual void setCursor(const Cursor&) = 0; |
| virtual void setCursorHiddenUntilMouseMoves(bool) = 0; |
| #endif |
| #if !USE(REQUEST_ANIMATION_FRAME_TIMER) |
| virtual void scheduleAnimation() = 0; |
| #endif |
| // End methods used by HostWindow. |
| |
| virtual FloatSize screenSize() const { return const_cast<ChromeClient*>(this)->windowRect().size(); } |
| virtual FloatSize availableScreenSize() const { return const_cast<ChromeClient*>(this)->windowRect().size(); } |
| |
| virtual void dispatchViewportPropertiesDidChange(const ViewportArguments&) const { } |
| |
| virtual void contentsSizeChanged(Frame*, const IntSize&) const = 0; |
| virtual void scrollRectIntoView(const IntRect&) const { }; // Currently only Mac has a non empty implementation. |
| |
| virtual bool shouldUnavailablePluginMessageBeButton(RenderEmbeddedObject::PluginUnavailabilityReason) const { return false; } |
| virtual void unavailablePluginButtonClicked(Element*, RenderEmbeddedObject::PluginUnavailabilityReason) const { } |
| virtual void mouseDidMoveOverElement(const HitTestResult&, unsigned modifierFlags) = 0; |
| |
| virtual void setToolTip(const String&, TextDirection) = 0; |
| |
| virtual void print(Frame*) = 0; |
| |
| virtual Color underlayColor() const { return Color(); } |
| |
| virtual void pageExtendedBackgroundColorDidChange(Color) const { } |
| |
| virtual void exceededDatabaseQuota(Frame*, const String& databaseName, DatabaseDetails) = 0; |
| |
| // Callback invoked when the application cache fails to save a cache object |
| // because storing it would grow the database file past its defined maximum |
| // size or past the amount of free space on the device. |
| // The chrome client would need to take some action such as evicting some |
| // old caches. |
| virtual void reachedMaxAppCacheSize(int64_t spaceNeeded) = 0; |
| |
| // Callback invoked when the application cache origin quota is reached. This |
| // means that the resources attempting to be cached via the manifest are |
| // more than allowed on this origin. This callback allows the chrome client |
| // to take action, such as prompting the user to ask to increase the quota |
| // for this origin. The totalSpaceNeeded parameter is the total amount of |
| // storage, in bytes, needed to store the new cache along with all of the |
| // other existing caches for the origin that would not be replaced by |
| // the new cache. |
| virtual void reachedApplicationCacheOriginQuota(SecurityOrigin*, int64_t totalSpaceNeeded) = 0; |
| |
| #if ENABLE(DASHBOARD_SUPPORT) |
| virtual void annotatedRegionsChanged(); |
| #endif |
| |
| virtual bool shouldReplaceWithGeneratedFileForUpload(const String& path, String& generatedFilename); |
| virtual String generateReplacementFile(const String& path); |
| |
| #if ENABLE(IOS_TOUCH_EVENTS) |
| virtual void didPreventDefaultForEvent() = 0; |
| #endif |
| |
| virtual Seconds eventThrottlingDelay() { return 0_s; }; |
| |
| #if PLATFORM(IOS) |
| virtual void didReceiveMobileDocType(bool) = 0; |
| virtual void setNeedsScrollNotifications(Frame*, bool) = 0; |
| virtual void observedContentChange(Frame*) = 0; |
| virtual void clearContentChangeObservers(Frame*) = 0; |
| virtual void notifyRevealedSelectionByScrollingFrame(Frame*) = 0; |
| |
| enum LayoutType { NormalLayout, Scroll }; |
| virtual void didLayout(LayoutType = NormalLayout) = 0; |
| virtual void didStartOverflowScroll() = 0; |
| virtual void didEndOverflowScroll() = 0; |
| |
| // FIXME: Remove this functionality. This functionality was added to workaround an issue (<rdar://problem/5973875>) |
| // where the unconfirmed text in a text area would be removed when a person clicks in the text area before a |
| // suggestion is shown. We should fix this issue in <rdar://problem/5975559>. |
| virtual void suppressFormNotifications() = 0; |
| virtual void restoreFormNotifications() = 0; |
| |
| virtual void didFlushCompositingLayers() { } |
| |
| virtual bool fetchCustomFixedPositionLayoutRect(IntRect&) { return false; } |
| |
| virtual void updateViewportConstrainedLayers(HashMap<PlatformLayer*, std::unique_ptr<ViewportConstraints>>&, HashMap<PlatformLayer*, PlatformLayer*>&) { } |
| |
| virtual void addOrUpdateScrollingLayer(Node*, PlatformLayer* scrollingLayer, PlatformLayer* contentsLayer, const IntSize& scrollSize, bool allowHorizontalScrollbar, bool allowVerticalScrollbar) = 0; |
| virtual void removeScrollingLayer(Node*, PlatformLayer* scrollingLayer, PlatformLayer* contentsLayer) = 0; |
| |
| virtual void webAppOrientationsUpdated() = 0; |
| virtual void showPlaybackTargetPicker(bool hasVideo) = 0; |
| #endif |
| |
| #if ENABLE(ORIENTATION_EVENTS) |
| virtual int deviceOrientation() const = 0; |
| #endif |
| |
| #if ENABLE(INPUT_TYPE_COLOR) |
| virtual std::unique_ptr<ColorChooser> createColorChooser(ColorChooserClient*, const Color&) = 0; |
| #endif |
| |
| virtual void runOpenPanel(Frame&, FileChooser&) = 0; |
| // Asynchronous request to load an icon for specified filenames. |
| virtual void loadIconForFiles(const Vector<String>&, FileIconLoader&) = 0; |
| |
| virtual void elementDidFocus(const Node*) { }; |
| virtual void elementDidBlur(const Node*) { }; |
| virtual void elementDidRefocus(const Node*) { }; |
| |
| virtual bool shouldPaintEntireContents() const { return false; } |
| virtual bool hasStablePageScaleFactor() const { return true; } |
| |
| // Allows ports to customize the type of graphics layers created by this page. |
| virtual GraphicsLayerFactory* graphicsLayerFactory() const { return nullptr; } |
| |
| #if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR) |
| virtual RefPtr<DisplayRefreshMonitor> createDisplayRefreshMonitor(PlatformDisplayID) const { return nullptr; } |
| #endif |
| |
| // Pass 0 as the GraphicsLayer to detatch the root layer. |
| virtual void attachRootGraphicsLayer(Frame*, GraphicsLayer*) = 0; |
| virtual void attachViewOverlayGraphicsLayer(Frame*, GraphicsLayer*) = 0; |
| // Sets a flag to specify that the next time content is drawn to the window, |
| // the changes appear on the screen in synchrony with updates to GraphicsLayers. |
| virtual void setNeedsOneShotDrawingSynchronization() = 0; |
| // Sets a flag to specify that the view needs to be updated, so we need |
| // to do an eager layout before the drawing. |
| virtual void scheduleCompositingLayerFlush() = 0; |
| // Returns whether or not the client can render the composited layer, |
| // regardless of the settings. |
| virtual bool allowsAcceleratedCompositing() const { return true; } |
| |
| enum CompositingTrigger { |
| ThreeDTransformTrigger = 1 << 0, |
| VideoTrigger = 1 << 1, |
| PluginTrigger = 1 << 2, |
| CanvasTrigger = 1 << 3, |
| AnimationTrigger = 1 << 4, |
| FilterTrigger = 1 << 5, |
| ScrollableInnerFrameTrigger = 1 << 6, |
| AnimatedOpacityTrigger = 1 << 7, |
| AllTriggers = 0xFFFFFFFF |
| }; |
| typedef unsigned CompositingTriggerFlags; |
| |
| // Returns a bitfield indicating conditions that can trigger the compositor. |
| virtual CompositingTriggerFlags allowedCompositingTriggers() const { return static_cast<CompositingTriggerFlags>(AllTriggers); } |
| |
| // Returns true if layer tree updates are disabled. |
| virtual bool layerTreeStateIsFrozen() const { return false; } |
| |
| virtual bool adjustLayerFlushThrottling(LayerFlushThrottleState::Flags) { return false; } |
| |
| virtual PassRefPtr<ScrollingCoordinator> createScrollingCoordinator(Page*) const { return nullptr; } |
| |
| #if PLATFORM(WIN) && USE(AVFOUNDATION) |
| virtual GraphicsDeviceAdapter* graphicsDeviceAdapter() const { return 0; } |
| #endif |
| |
| virtual bool supportsVideoFullscreen(HTMLMediaElementEnums::VideoFullscreenMode) { return false; } |
| #if ENABLE(VIDEO) |
| virtual void enterVideoFullscreenForVideoElement(HTMLVideoElement&, HTMLMediaElementEnums::VideoFullscreenMode) { } |
| virtual void setUpPlaybackControlsManager(HTMLMediaElement&) { } |
| virtual void clearPlaybackControlsManager() { } |
| #endif |
| virtual void exitVideoFullscreenForVideoElement(WebCore::HTMLVideoElement&) { } |
| virtual void exitVideoFullscreenToModeWithoutAnimation(WebCore::HTMLVideoElement&, HTMLMediaElementEnums::VideoFullscreenMode /*targetMode*/) { } |
| virtual bool requiresFullscreenForVideoPlayback() { return false; } |
| |
| #if ENABLE(FULLSCREEN_API) |
| virtual bool supportsFullScreenForElement(const Element*, bool) { return false; } |
| virtual void enterFullScreenForElement(Element*) { } |
| virtual void exitFullScreenForElement(Element*) { } |
| virtual void setRootFullScreenLayer(GraphicsLayer*) { } |
| #endif |
| |
| #if USE(COORDINATED_GRAPHICS) |
| virtual IntRect visibleRectForTiledBackingStore() const { return IntRect(); } |
| #endif |
| |
| #if PLATFORM(COCOA) |
| virtual NSResponder *firstResponder() { return 0; } |
| virtual void makeFirstResponder(NSResponder *) { } |
| // Focuses on the containing view associated with this page. |
| virtual void makeFirstResponder() { } |
| #endif |
| |
| #if PLATFORM(IOS) |
| // FIXME: Come up with a more descriptive name for this function and make it platform independent (if possible). |
| virtual bool isStopping() = 0; |
| #endif |
| |
| virtual void enableSuddenTermination() { } |
| virtual void disableSuddenTermination() { } |
| |
| #if PLATFORM(WIN) |
| virtual void setLastSetCursorToCurrentCursor() = 0; |
| virtual void AXStartFrameLoad() = 0; |
| virtual void AXFinishFrameLoad() = 0; |
| #endif |
| |
| virtual bool selectItemWritingDirectionIsNatural() = 0; |
| virtual bool selectItemAlignmentFollowsMenuWritingDirection() = 0; |
| // Checks if there is an opened popup, called by RenderMenuList::showPopup(). |
| virtual bool hasOpenedPopup() const = 0; |
| virtual RefPtr<PopupMenu> createPopupMenu(PopupMenuClient*) const = 0; |
| virtual RefPtr<SearchPopupMenu> createSearchPopupMenu(PopupMenuClient*) const = 0; |
| |
| virtual void postAccessibilityNotification(AccessibilityObject*, AXObjectCache::AXNotification) { } |
| |
| virtual void notifyScrollerThumbIsVisibleInRect(const IntRect&) { } |
| virtual void recommendedScrollbarStyleDidChange(ScrollbarStyle) { } |
| |
| virtual std::optional<ScrollbarOverlayStyle> preferredScrollbarOverlayStyle() { return ScrollbarOverlayStyleDefault; } |
| |
| virtual void wheelEventHandlersChanged(bool hasHandlers) = 0; |
| |
| virtual bool isSVGImageChromeClient() const { return false; } |
| |
| #if ENABLE(POINTER_LOCK) |
| virtual bool requestPointerLock() { return false; } |
| virtual void requestPointerUnlock() { } |
| #endif |
| |
| virtual FloatSize minimumWindowSize() const { return FloatSize(100, 100); }; |
| |
| virtual bool isEmptyChromeClient() const { return false; } |
| |
| virtual String plugInStartLabelTitle(const String& mimeType) const { UNUSED_PARAM(mimeType); return String(); } |
| virtual String plugInStartLabelSubtitle(const String& mimeType) const { UNUSED_PARAM(mimeType); return String(); } |
| virtual String plugInExtraStyleSheet() const { return String(); } |
| virtual String plugInExtraScript() const { return String(); } |
| |
| virtual void didAssociateFormControls(const Vector<RefPtr<Element>>&) { }; |
| virtual bool shouldNotifyOnFormChanges() { return false; }; |
| |
| virtual void didAddHeaderLayer(GraphicsLayer*) { } |
| virtual void didAddFooterLayer(GraphicsLayer*) { } |
| |
| virtual bool shouldUseTiledBackingForFrameView(const FrameView*) const { return false; } |
| |
| virtual void isPlayingMediaDidChange(MediaProducer::MediaStateFlags, uint64_t) { } |
| |
| #if ENABLE(MEDIA_SESSION) |
| virtual void hasMediaSessionWithActiveMediaElementsDidChange(bool) { } |
| virtual void mediaSessionMetadataDidChange(const WebCore::MediaSessionMetadata&) { } |
| virtual void focusedContentMediaElementDidChange(uint64_t) { } |
| #endif |
| |
| #if ENABLE(SUBTLE_CRYPTO) |
| virtual bool wrapCryptoKey(const Vector<uint8_t>&, Vector<uint8_t>&) const { return false; } |
| virtual bool unwrapCryptoKey(const Vector<uint8_t>&, Vector<uint8_t>&) const { return false; } |
| #endif |
| |
| #if ENABLE(TELEPHONE_NUMBER_DETECTION) && PLATFORM(MAC) |
| virtual void handleTelephoneNumberClick(const String&, const WebCore::IntPoint&) { } |
| #endif |
| #if ENABLE(SERVICE_CONTROLS) |
| virtual void handleSelectionServiceClick(WebCore::FrameSelection&, const Vector<String>&, const WebCore::IntPoint&) { } |
| virtual bool hasRelevantSelectionServices(bool /* isTextOnly */) const { return false; } |
| #endif |
| |
| virtual bool shouldDispatchFakeMouseMoveEvents() const { return true; } |
| |
| virtual void handleAutoFillButtonClick(HTMLInputElement&) { } |
| |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| virtual void addPlaybackTargetPickerClient(uint64_t /*contextId*/) { } |
| virtual void removePlaybackTargetPickerClient(uint64_t /*contextId*/) { } |
| virtual void showPlaybackTargetPicker(uint64_t /*contextId*/, const WebCore::IntPoint&, bool /* isVideo */) { } |
| virtual void playbackTargetPickerClientStateDidChange(uint64_t /*contextId*/, MediaProducer::MediaStateFlags) { } |
| virtual void setMockMediaPlaybackTargetPickerEnabled(bool) { } |
| virtual void setMockMediaPlaybackTargetPickerState(const String&, WebCore::MediaPlaybackTargetContext::State) { } |
| #endif |
| |
| virtual void imageOrMediaDocumentSizeChanged(const WebCore::IntSize&) { } |
| |
| #if ENABLE(VIDEO) && USE(GSTREAMER) |
| virtual void requestInstallMissingMediaPlugins(const String& /*details*/, const String& /*description*/, MediaPlayerRequestInstallMissingPluginsCallback&) { } |
| #endif |
| |
| virtual void didInvalidateDocumentMarkerRects() { } |
| |
| virtual void reportProcessCPUTime(int64_t, ActivityStateForCPUSampling) { } |
| |
| protected: |
| virtual ~ChromeClient() { } |
| }; |
| |
| } // namespace WebCore |
