/*
 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
 *
 * 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 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 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. 
 */

#ifndef WebNetscapePluginEventHandler_h
#define WebNetscapePluginEventHandler_h

#import "WebNetscapePluginView.h"

#if ENABLE(NETSCAPE_PLUGIN_API)

@class NSEvent;
@class WebNetscapePluginView;

class WebNetscapePluginEventHandler {
public:
    static std::unique_ptr<WebNetscapePluginEventHandler> create(WebNetscapePluginView *);
    virtual ~WebNetscapePluginEventHandler() { }
    
    virtual void drawRect(CGContextRef, const NSRect&) = 0;
    
    virtual void mouseDown(NSEvent *) = 0;
    virtual void mouseDragged(NSEvent *) = 0;
    virtual void mouseEntered(NSEvent *) = 0;
    virtual void mouseExited(NSEvent *) = 0;
    virtual void mouseMoved(NSEvent *) = 0;
    virtual void mouseUp(NSEvent *) = 0;
    virtual bool scrollWheel(NSEvent *) = 0;
    
    virtual void keyDown(NSEvent *) = 0;
    virtual void keyUp(NSEvent *) = 0;
    virtual void flagsChanged(NSEvent *) = 0;
    virtual void syntheticKeyDownWithCommandModifier(int keyCode, char character) = 0;
    
    virtual void focusChanged(bool hasFocus) = 0;
    virtual void windowFocusChanged(bool hasFocus) = 0;
    
    virtual void startTimers(bool throttleTimers) { }
    virtual void stopTimers() { }
    
    // Returns the platform specific window used in NPP_SetWindow
    virtual void* platformWindow(NSWindow *) = 0;
    
    bool currentEventIsUserGesture() const { return m_currentEventIsUserGesture; }

protected:
    explicit WebNetscapePluginEventHandler(WebNetscapePluginView *pluginView)
        : m_pluginView(pluginView)
        , m_currentEventIsUserGesture(false)
    {
    }
    
    WebNetscapePluginView *m_pluginView;
    bool m_currentEventIsUserGesture;
};

#endif // ENABLE(NETSCAPE_PLUGIN_API)

#endif // WebNetscapePluginEventHandler_h