gecko/dom/plugins/PluginInstanceChild.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: sw=4 ts=4 et :
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Plugin App.
 *
 * The Initial Developer of the Original Code is
 *   Chris Jones <jones.chris.g@gmail.com>
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * decision by deleting the provisions above and replace them with the notice
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 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef dom_plugins_PluginInstanceChild_h
#define dom_plugins_PluginInstanceChild_h 1

#include "mozilla/plugins/PPluginInstanceChild.h"
#include "mozilla/plugins/PluginScriptableObjectChild.h"
#include "mozilla/plugins/StreamNotifyChild.h"
#if defined(OS_WIN)
#include "mozilla/gfx/SharedDIBWin.h"
#endif

#include "npfunctions.h"
#include "nsAutoPtr.h"
#include "nsTArray.h"

#undef _MOZ_LOG
#define _MOZ_LOG(s) printf("[PluginInstanceChild] %s\n", s)

namespace mozilla {
namespace plugins {

class PBrowserStreamChild;
class BrowserStreamChild;

class PluginInstanceChild : public PPluginInstanceChild
{
    friend class BrowserStreamChild;
    friend class PluginStreamChild;

#ifdef OS_WIN
    friend LRESULT CALLBACK PluginWindowProc(HWND hWnd,
                                             UINT message,
                                             WPARAM wParam,
                                             LPARAM lParam);
#endif

protected:
    virtual bool AnswerNPP_SetWindow(const NPRemoteWindow& window, NPError* rv);

    virtual bool Answer__delete__(NPError* rv);


    virtual bool
    AnswerNPP_GetValue_NPPVpluginWindow(bool* windowed, NPError* rv);
    virtual bool
    AnswerNPP_GetValue_NPPVpluginTransparent(bool* transparent, NPError* rv);
    virtual bool
    AnswerNPP_GetValue_NPPVpluginNeedsXEmbed(bool* needs, NPError* rv);
    virtual bool
    AnswerNPP_GetValue_NPPVpluginScriptableNPObject(PPluginScriptableObjectChild** value,
                                                    NPError* result);

    virtual bool
    AnswerNPP_HandleEvent(const NPRemoteEvent& event, int16_t* handled);

    virtual PPluginScriptableObjectChild*
    AllocPPluginScriptableObject();

    virtual bool
    DeallocPPluginScriptableObject(PPluginScriptableObjectChild* aObject);

    virtual bool
    AnswerPPluginScriptableObjectConstructor(PPluginScriptableObjectChild* aActor);

    virtual PBrowserStreamChild*
    AllocPBrowserStream(const nsCString& url,
                        const uint32_t& length,
                        const uint32_t& lastmodified,
                        PStreamNotifyChild* notifyData,
                        const nsCString& headers,
                        const nsCString& mimeType,
                        const bool& seekable,
                        NPError* rv,
                        uint16_t *stype);

    virtual bool
    DeallocPBrowserStream(PBrowserStreamChild* stream);

    virtual PPluginStreamChild*
    AllocPPluginStream(const nsCString& mimeType,
                       const nsCString& target,
                       NPError* result);

    virtual bool
    DeallocPPluginStream(PPluginStreamChild* stream);

    virtual PStreamNotifyChild*
    AllocPStreamNotify(const nsCString& url, const nsCString& target,
                       const bool& post, const nsCString& buffer,
                       const bool& file,
                       NPError* result);

    NS_OVERRIDE virtual bool
    DeallocPStreamNotify(PStreamNotifyChild* notifyData);

public:
    PluginInstanceChild(const NPPluginFuncs* aPluginIface);

    virtual ~PluginInstanceChild();

    bool Initialize();
    void Destroy();

    NPP GetNPP()
    {
        return &mData;
    }

    NPError
    NPN_GetValue(NPNVariable aVariable, void* aValue);

    NPError
    NPN_SetValue(NPPVariable aVariable, void* aValue);

    PluginScriptableObjectChild*
    GetActorForNPObject(NPObject* aObject);

    NPError
    NPN_NewStream(NPMIMEType aMIMEType, const char* aWindow,
                  NPStream** aStream);

    // Return true if you want to send the notification to the parent process
    // also.
    bool
    InternalInvalidateRect(NPRect* aInvalidRect);

    bool NotifyStream(StreamNotifyChild* notifyData, NPReason reason);

private:

#if defined(OS_WIN)
    static bool RegisterWindowClass();
    bool CreatePluginWindow();
    void DestroyPluginWindow();
    void ReparentPluginWindow(HWND hWndParent);
    void SizePluginWindow(int width, int height);
    static LRESULT CALLBACK DummyWindowProc(HWND hWnd,
                                            UINT message,
                                            WPARAM wParam,
                                            LPARAM lParam);
    static LRESULT CALLBACK PluginWindowProc(HWND hWnd,
                                             UINT message,
                                             WPARAM wParam,
                                             LPARAM lParam);
#endif

    const NPPluginFuncs* mPluginIface;
    NPP_t mData;
    NPWindow mWindow;
#if defined(MOZ_X11) && defined(XP_UNIX) && !defined(XP_MACOSX)
    NPSetWindowCallbackStruct mWsInfo;
#elif defined(OS_WIN)
    HWND mPluginWindowHWND;
    WNDPROC mPluginWndProc;
    HWND mPluginParentHWND;
#endif

    nsTArray<nsAutoPtr<PluginScriptableObjectChild> > mScriptableObjects;

#if defined(OS_WIN)
private:
    // Shared dib rendering management for windowless plugins.
    bool SharedSurfaceSetWindow(const NPRemoteWindow& aWindow, NPError* rv);
    int16_t SharedSurfacePaint(NPEvent& evcopy);
    void SharedSurfaceRelease();
    bool AlphaExtractCacheSetup();
    void AlphaExtractCacheRelease();
    void UpdatePaintClipRect(RECT* aRect);

private:
    enum {
      RENDER_NATIVE,
      RENDER_BACK_ONE,
      RENDER_BACK_TWO 
    };
    gfx::SharedDIBWin mSharedSurfaceDib;
    struct {
      PRUint32        doublePassEvent;
      PRUint16        doublePass;
      HDC             hdc;
      HBITMAP         bmp;
    } mAlphaExtract;
#endif // defined(OS_WIN)
};

} // namespace plugins
} // namespace mozilla

#endif // ifndef dom_plugins_PluginInstanceChild_h