/*
 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#include <WebCore/ChromeClient.h>
#include <WebCore/COMPtr.h>
#include <WebCore/GraphicsContext.h>
#include <WebCore/FocusDirection.h>
#include <WebCore/ScrollTypes.h>
#include <wtf/Forward.h>
#include <wtf/PassRefPtr.h>

class WebView;
class WebDesktopNotificationsDelegate;

interface IWebUIDelegate;

class WebChromeClient : public WebCore::ChromeClient {
public:
    WebChromeClient(WebView*);

    virtual void chromeDestroyed();

    virtual void* webView() const { return m_webView; }
    virtual void setWindowRect(const WebCore::FloatRect&);
    virtual WebCore::FloatRect windowRect();
    
    virtual WebCore::FloatRect pageRect();

    virtual void focus();
    virtual void unfocus();

    virtual bool canTakeFocus(WebCore::FocusDirection);
    virtual void takeFocus(WebCore::FocusDirection);

    virtual void focusedNodeChanged(WebCore::Node*);
    virtual void focusedFrameChanged(WebCore::Frame*);

    virtual WebCore::Page* createWindow(WebCore::Frame*, const WebCore::FrameLoadRequest&, const WebCore::WindowFeatures&, const WebCore::NavigationAction&);
    virtual void show();

    virtual bool canRunModal();
    virtual void runModal();

    virtual void setToolbarsVisible(bool);
    virtual bool toolbarsVisible();
    
    virtual void setStatusbarVisible(bool);
    virtual bool statusbarVisible();
    
    virtual void setScrollbarsVisible(bool);
    virtual bool scrollbarsVisible();
    
    virtual void setMenubarVisible(bool);
    virtual bool menubarVisible();

    virtual void setResizable(bool);

    virtual void addMessageToConsole(WebCore::MessageSource source, WebCore::MessageType type, WebCore::MessageLevel level, const WTF::String& message, unsigned line, const WTF::String& url);

    virtual bool canRunBeforeUnloadConfirmPanel();
    virtual bool runBeforeUnloadConfirmPanel(const WTF::String& message, WebCore::Frame* frame);

    virtual void closeWindowSoon();

    virtual void runJavaScriptAlert(WebCore::Frame*, const WTF::String&);
    virtual bool runJavaScriptConfirm(WebCore::Frame*, const WTF::String&);
    virtual bool runJavaScriptPrompt(WebCore::Frame*, const WTF::String& message, const WTF::String& defaultValue, WTF::String& result);
    virtual void setStatusbarText(const WTF::String&);
    virtual bool shouldInterruptJavaScript();

    virtual WebCore::KeyboardUIMode keyboardUIMode();
    virtual WebCore::IntRect windowResizerRect() const;

    virtual void invalidateWindow(const WebCore::IntRect&, bool);
    virtual void invalidateContentsAndWindow(const WebCore::IntRect&, bool);
    virtual void invalidateContentsForSlowScroll(const WebCore::IntRect&, bool);
    virtual void scroll(const WebCore::IntSize& scrollDelta, const WebCore::IntRect& rectToScroll, const WebCore::IntRect& clipRect);

    virtual WebCore::IntPoint screenToWindow(const WebCore::IntPoint& p) const;
    virtual WebCore::IntRect windowToScreen(const WebCore::IntRect& r) const;
    virtual PlatformPageClient platformPageClient() const;
    virtual void contentsSizeChanged(WebCore::Frame*, const WebCore::IntSize&) const;

    virtual void scrollbarsModeDidChange() const { }
    virtual void mouseDidMoveOverElement(const WebCore::HitTestResult&, unsigned modifierFlags);
    virtual bool shouldMissingPluginMessageBeButton() const;
    virtual void missingPluginButtonClicked(WebCore::Element*) const;

    virtual void setToolTip(const WTF::String&, WebCore::TextDirection);

    virtual void print(WebCore::Frame*);

#if ENABLE(DATABASE)
    virtual void exceededDatabaseQuota(WebCore::Frame*, const WTF::String&);
#endif

#if ENABLE(OFFLINE_WEB_APPLICATIONS)
    virtual void reachedMaxAppCacheSize(int64_t spaceNeeded);
    virtual void reachedApplicationCacheOriginQuota(WebCore::SecurityOrigin*, int64_t totalSpaceNeeded);
#endif

#if ENABLE(CONTEXT_MENUS)
    virtual void showContextMenu() { }
#endif

    virtual void populateVisitedLinks();

    virtual bool paintCustomScrollbar(WebCore::GraphicsContext*, const WebCore::FloatRect&, WebCore::ScrollbarControlSize, 
                                        WebCore::ScrollbarControlState, WebCore::ScrollbarPart pressedPart, bool vertical,
                                        float value, float proportion, WebCore::ScrollbarControlPartMask);
    virtual bool paintCustomScrollCorner(WebCore::GraphicsContext*, const WebCore::FloatRect&);

    virtual void runOpenPanel(WebCore::Frame*, PassRefPtr<WebCore::FileChooser>);
    virtual void loadIconForFiles(const Vector<WTF::String>&, WebCore::FileIconLoader*);

    virtual void setCursor(const WebCore::Cursor&);
    virtual void setCursorHiddenUntilMouseMoves(bool);
    virtual void setLastSetCursorToCurrentCursor();

    virtual void formStateDidChange(const WebCore::Node*) { }

#if USE(ACCELERATED_COMPOSITING)
        // Pass 0 as the GraphicsLayer to detatch the root layer.
        virtual void attachRootGraphicsLayer(WebCore::Frame*, WebCore::GraphicsLayer*);
        // 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() { }
        // 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();
#endif

    virtual void scrollRectIntoView(const WebCore::IntRect&, const WebCore::ScrollView*) const {}

    // FIXME: Remove once all ports are using client-based geolocation. https://bugs.webkit.org/show_bug.cgi?id=40373
    // For client-based geolocation, these two methods have been moved to WebGeolocationClient. https://bugs.webkit.org/show_bug.cgi?id=50061
    virtual void requestGeolocationPermissionForFrame(WebCore::Frame*, WebCore::Geolocation*) { }
    virtual void cancelGeolocationPermissionRequestForFrame(WebCore::Frame*, WebCore::Geolocation*) { }

#if ENABLE(VIDEO)
    virtual bool supportsFullscreenForNode(const WebCore::Node*);
    virtual void enterFullscreenForNode(WebCore::Node*);
    virtual void exitFullscreenForNode(WebCore::Node*);
#endif

#if ENABLE(NOTIFICATIONS)
    virtual WebCore::NotificationPresenter* notificationPresenter() const { return reinterpret_cast<WebCore::NotificationPresenter*>(m_notificationsDelegate.get()); }
#endif

    virtual bool selectItemWritingDirectionIsNatural();
    virtual bool selectItemAlignmentFollowsMenuWritingDirection();
    virtual PassRefPtr<WebCore::PopupMenu> createPopupMenu(WebCore::PopupMenuClient*) const;
    virtual PassRefPtr<WebCore::SearchPopupMenu> createSearchPopupMenu(WebCore::PopupMenuClient*) const;

#if ENABLE(FULLSCREEN_API)
    virtual bool supportsFullScreenForElement(const WebCore::Element*, bool withKeyboard);
    virtual void enterFullScreenForElement(WebCore::Element*);
    virtual void exitFullScreenForElement(WebCore::Element*);
#endif

    virtual bool shouldRubberBandInDirection(WebCore::ScrollDirection) const { return true; }
    virtual void numWheelEventHandlersChanged(unsigned) { }

private:
    COMPtr<IWebUIDelegate> uiDelegate();

    WebView* m_webView;

#if ENABLE(NOTIFICATIONS)
    OwnPtr<WebDesktopNotificationsDelegate> m_notificationsDelegate;
#endif
};
