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/*
* Copyright (C) 2006, 2007, 2008, 2009 Apple, Inc. 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.
*/
#ifndef ChromeClient_h
#define ChromeClient_h
#include "Console.h"
#include "Cursor.h"
#include "FocusDirection.h"
#include "GraphicsContext.h"
#include "HTMLParserQuirks.h"
#include "HostWindow.h"
#include "ScrollTypes.h"
#include <wtf/Forward.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/Vector.h>
#if PLATFORM(MAC)
#include "WebCoreKeyboardUIMode.h"
#endif
#ifndef __OBJC__
class NSMenu;
class NSResponder;
#endif
namespace WebCore {
class AtomicString;
class FileChooser;
class FloatRect;
class Frame;
class Geolocation;
class HTMLParserQuirks;
class HitTestResult;
class IntRect;
class Node;
class Page;
class String;
class Widget;
struct FrameLoadRequest;
struct WindowFeatures;
#if USE(ACCELERATED_COMPOSITING)
class GraphicsLayer;
#endif
#if ENABLE(NOTIFICATIONS)
class NotificationPresenter;
#endif
class ChromeClient {
public:
virtual void chromeDestroyed() = 0;
virtual void setWindowRect(const FloatRect&) = 0;
virtual FloatRect windowRect() = 0;
virtual FloatRect pageRect() = 0;
virtual float scaleFactor() = 0;
#ifdef ANDROID_USER_GESTURE
virtual void focus(bool userGesture) = 0;
#else
virtual void focus() = 0;
#endif
virtual void unfocus() = 0;
virtual bool canTakeFocus(FocusDirection) = 0;
virtual void takeFocus(FocusDirection) = 0;
virtual void focusedNodeChanged(Node*) = 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.
virtual Page* createWindow(Frame*, const FrameLoadRequest&, const WindowFeatures&) = 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, MessageType, MessageLevel, const String& message, unsigned int lineNumber, const String& sourceID) = 0;
virtual bool canRunBeforeUnloadConfirmPanel() = 0;
virtual bool runBeforeUnloadConfirmPanel(const String& message, Frame* 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 bool shouldInterruptJavaScript() = 0;
virtual bool tabsToLinks() const = 0;
virtual void registerProtocolHandler(const String&, const String&, const String&, const String&) { }
virtual void registerContentHandler(const String&, const String&, const String&, const String&) { }
virtual IntRect windowResizerRect() const = 0;
// Methods used by HostWindow.
virtual void repaint(const IntRect&, bool contentChanged, bool immediate = false, bool repaintContentOnly = false) = 0;
virtual void scroll(const IntSize& scrollDelta, const IntRect& rectToScroll, const IntRect& clipRect) = 0;
virtual IntPoint screenToWindow(const IntPoint&) const = 0;
virtual IntRect windowToScreen(const IntRect&) const = 0;
virtual PlatformPageClient platformPageClient() const = 0;
virtual void contentsSizeChanged(Frame*, const IntSize&) const = 0;
virtual void scrollRectIntoView(const IntRect&, const ScrollView*) const = 0; // Currently only Mac has a non empty implementation.
// End methods used by HostWindow.
virtual void scrollbarsModeDidChange() const = 0;
virtual void mouseDidMoveOverElement(const HitTestResult&, unsigned modifierFlags) = 0;
virtual void setToolTip(const String&, TextDirection) = 0;
virtual void print(Frame*) = 0;
#if ENABLE(DATABASE)
virtual void exceededDatabaseQuota(Frame*, const String& databaseName) = 0;
#endif
#if ENABLE(OFFLINE_WEB_APPLICATIONS)
// 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;
#endif
#if ENABLE(DASHBOARD_SUPPORT)
virtual void dashboardRegionsChanged();
#endif
#if ENABLE(NOTIFICATIONS)
virtual NotificationPresenter* notificationPresenter() const = 0;
#endif
virtual void populateVisitedLinks();
virtual FloatRect customHighlightRect(Node*, const AtomicString& type, const FloatRect& lineRect);
virtual void paintCustomHighlight(Node*, const AtomicString& type, const FloatRect& boxRect, const FloatRect& lineRect,
bool behindText, bool entireLine);
virtual bool shouldReplaceWithGeneratedFileForUpload(const String& path, String& generatedFilename);
virtual String generateReplacementFile(const String& path);
virtual bool paintCustomScrollbar(GraphicsContext*, const FloatRect&, ScrollbarControlSize,
ScrollbarControlState, ScrollbarPart pressedPart, bool vertical,
float value, float proportion, ScrollbarControlPartMask);
virtual bool paintCustomScrollCorner(GraphicsContext*, const FloatRect&);
// This can be either a synchronous or asynchronous call. The ChromeClient can display UI asking the user for permission
// to use Geolocation.
virtual void requestGeolocationPermissionForFrame(Frame*, Geolocation*) = 0;
virtual void cancelGeolocationPermissionRequestForFrame(Frame*) = 0;
virtual void runOpenPanel(Frame*, PassRefPtr<FileChooser>) = 0;
virtual bool setCursor(PlatformCursorHandle) = 0;
// Notification that the given form element has changed. This function
// will be called frequently, so handling should be very fast.
virtual void formStateDidChange(const Node*) = 0;
virtual void formDidFocus(const Node*) { };
virtual void formDidBlur(const Node*) { };
virtual PassOwnPtr<HTMLParserQuirks> createHTMLParserQuirks() = 0;
#if USE(ACCELERATED_COMPOSITING)
// Pass 0 as the GraphicsLayer to detatch the root layer.
virtual void attachRootGraphicsLayer(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 scheduleCompositingLayerSync() = 0;
#endif
virtual bool supportsFullscreenForNode(const Node*) { return false; }
virtual void enterFullscreenForNode(Node*) { }
virtual void exitFullscreenForNode(Node*) { }
#if PLATFORM(MAC)
virtual KeyboardUIMode keyboardUIMode() { return KeyboardAccessDefault; }
virtual NSResponder *firstResponder() { return 0; }
virtual void makeFirstResponder(NSResponder *) { }
virtual void willPopUpMenu(NSMenu *) { }
#endif
#if ENABLE(TOUCH_EVENTS)
virtual void needTouchEvents(bool) = 0;
#endif
protected:
virtual ~ChromeClient() { }
};
}
#endif // ChromeClient_h
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