embeddedapp.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: embeddedapp.cpp,v 1.39.2.16 2004/12/07 21:17:19 nhart Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
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 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 * 
 * Contributor(s):
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 * ***** END LICENSE BLOCK ***** */

#include "appver.h"

#include "embeddedapp.h"
#include "commonapp.h"
#include "playeripc.h"
#include "hxbin.h"
#include "contextmenu.h"
#include "hxplayer-i18n.h"
#include "hxgvalue.h"
#include "hxgprefs.h"

#include "about.h"
#include "prefsdialog.h"
#include "statistics.h"

/* Status widgets */
#include "hxstatusfield.h"
#include "hxstatusinfopanel.h"
#include "hxstatuspositionfield.h"
#include "hxstatuspositionslider.h"
#include "hxstatustacctrl.h"
#include "hxstatuscongestion.h"

#include "embddef.h"

#include <string.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>

#include <glib.h>

/* This file contains functions with several different prefixes.
 * They include:
 *   hxembedded_window - operate on HXEmbeddedWindow objects. A
 *                       HXEmbeddedWindow object represents a
 *                       single <embed> tag in an html page. It
 *                       could be an image window, button, status
 *                       bar, etc.
 *
 *   hxembedded_player - This is a collection of HXEmbeddedWindow
 *                       that, together, define a player.
 *
 *   hxembedded_console - This is a collection of players, and a
 *                        set of control "windows" that together
 *                        define a console.
 *
 *   hew - For (h)xplayer (e)mbedded (w)idget, these functions are
 *         designed to work as callbacks to the hx_player_widget.
 *
 *   no prefix - These functions are "private" supporting functions for
 *               one of the methods above, and are not intended for general
 *               use
 *
 */

/* Constants:
 * ==========
 */

#define FF_RW_UPDATE_PERIOD 100 // ms = 0.5 seconds

#define HX_CALLBACK_KEY_EVENTS ((HXCallbackFlags)             \
                                (HX_CALLBACK_ON_KEY_DOWN  |   \
                                 HX_CALLBACK_ON_KEY_PRESS |   \
                                 HX_CALLBACK_ON_KEY_UP))

#define HX_CALLBACK_MOUSE_EVENTS ((HXCallbackFlags)              \
                                  (HX_CALLBACK_ON_MOUSE_MOVE   | \
                                   HX_CALLBACK_ON_LBUTTON_UP   | \
                                   HX_CALLBACK_ON_LBUTTON_DOWN | \
                                   HX_CALLBACK_ON_RBUTTON_UP   | \
                                   HX_CALLBACK_ON_RBUTTON_DOWN))

#define HX_CALLBACK_ERROR_EVENTS ((HXCallbackFlags)              \
                                  (HX_CALLBACK_ON_ERROR_MESSAGE)) 
                                  

#define POS_LEN_CALLBACK_INTERVAL 1000 /* ms -- once a second */

/* Forward Declarations:
 * =====================
 */

extern "C"
{
/* Commands for the context menu (similar to hmw_* in hxplayer.h) */
void hew_play(GtkWidget* widget);
void hew_stop(GtkWidget* widget);
void hew_pause(GtkWidget* widget);
void hew_mute(GtkWidget* widget);
void hew_volume_changed(GtkWidget* widget);

gboolean hew_ff_start(HXEmbeddedWindow* window, GdkEventButton* event);
gboolean hew_ff(gpointer data);
gboolean hew_ff_stop(HXEmbeddedWindow* window, GdkEventButton* event);
gboolean hew_rewind_start(HXEmbeddedWindow* window, GdkEventButton* event);
gboolean hew_rewind(gpointer data);
gboolean hew_rewind_stop(HXEmbeddedWindow* window, GdkEventButton* event);

/* Callbacks for the embedded widget (similar to hpw in hxwindow.cpp) */
void hepw_mute_changed(HXEmbeddedWindow* window, gboolean mute);
void hepw_play_buffer_contact(HXEmbeddedWindow* window);
void hepw_pause(HXEmbeddedWindow* window);
void hepw_stop(HXEmbeddedWindow* window);
void hepw_volume_changed(HXEmbeddedWindow* window, guint vol);
void hepw_error(HXEmbeddedWindow* window, GError* error);
void hepw_hxerror(HXEmbeddedWindow* window, guint hxcode, guint user_code, const gchar* error_string, const gchar* user_string, const gchar* more_info_url);
void hepw_request_upgrade(HXEmbeddedWindow* window, const gchar* url, GList* components_list, gboolean blocking, gpointer);
void hepw_request_authentication(HXEmbeddedWindow* window, const gchar* server_proxy, const gchar* realm, gboolean is_proxy_server);
void hepw_open_window(HXEmbeddedWindow* window, gchar* url, gchar* target);
void hepw_goto_url(HXEmbeddedWindow* window, gchar* url, gchar* target);
void hepw_start_seeking(HXEmbeddedWindow* window);
void hepw_stop_seeking(HXEmbeddedWindow* window);
};

void     hxembedded_window_hookup_ipc_callbacks(HXEmbeddedWindow* window);
void     hxembedded_window_show_volume_popup   (HXEmbeddedWindow* window,
                                                GtkWidget* widget);
void     hxembedded_window_volume_changed      (HXEmbeddedWindow* window);


/* Data structures
 * ===============
 */

// Signal-based callbacks that are per-HXEmbeddedWindow
typedef struct
{
    gboolean is_enabled;
    gulong id;
} HXWindowSigInfo;

// Signal-based callbacks that are per-HXEmbeddedPlayer
typedef struct
{
    gboolean is_enabled;
    GObject* target;
    gulong id;
} HXPlayerSigInfo;

// Non-signal-based callbacks that are per-HXEmbeddedPlayer
typedef struct
{
    gboolean is_enabled;
} HXPlayerCallbackInfo;

struct _HXEmbeddedConsole;
typedef struct _HXEmbeddedConsole HXEmbeddedConsole;

typedef struct
{
    HXPlayer* player;
    HXBin* hxbin;

    HXContextMenu* context_menu;
} HXEmbeddedWindowImageWindow;

typedef struct
{
    GtkWidget* button;
    GtkWidget* image;

    GdkPixbuf* mute_pixbuf;
    GdkPixbuf* off_pixbuf;
    GdkPixbuf* low_pixbuf;
    GdkPixbuf* mid_pixbuf;
    GdkPixbuf* high_pixbuf;

} HXEmbeddedWindowMuteCtrl;

typedef struct
{
    GtkWidget* scale;
} HXEmbeddedWindowVolumeSlider;

typedef struct
{
    GtkWidget* button;
    GtkWidget* image;
    GdkPixbuf* play_pixbuf;
    GdkPixbuf* pause_pixbuf;
} HXEmbeddedWindowPlayPauseButton;

typedef struct
{
    GtkWidget* button;
} HXEmbeddedWindowPlayButton;

typedef struct
{
    GtkWidget* button;
} HXEmbeddedWindowPauseButton;

typedef struct
{
    GtkWidget* button;
} HXEmbeddedWindowStopButton;

typedef struct
{
    GtkWidget* button;
    gint timer_id;
} HXEmbeddedWindowFastForwardButton;

typedef struct
{
    GtkWidget* button;
    gint timer_id;
} HXEmbeddedWindowRewindButton;

typedef struct
{
    GtkWidget* popup_window;
    GtkWidget* button;
    GtkWidget* image;

    GdkPixbuf* mute_pixbuf;
    GdkPixbuf* off_pixbuf;
    GdkPixbuf* low_pixbuf;
    GdkPixbuf* mid_pixbuf;
    GdkPixbuf* high_pixbuf;

} HXEmbeddedWindowMuteVolumePopup;

typedef struct
{
    guint stream_id;
    HXDataStream* stream;
    gchar* url;
    gchar* mime_type;
} HXDataStreamInfo;


typedef struct _HXEmbeddedWindow
{
    guint id;
    GList* streams_list;
    gchar* src_url;     /* Qualified url of the <embed> tag, passed by NewStream  */ 
    HXEmbeddedWindowAttributes attr;    
    gboolean is_global; /* Affects all players in the console */
    GtkWidget* window;
    HXEmbeddedConsole* console;
    XID parent_xid;
    guint parent_socket_id;
    GtkWidget* widget;
    gboolean is_window_set;
    GtkWidget* alignment;

    /* Helix error information, for use with the JavaScript api */
    guint helix_error_code;
    guint helix_user_code;
    gchar* helix_error_string;
    gchar* helix_user_string;
    gchar* helix_more_info_url;
    
    /* Attributes that can be set via javascript */
    gchar* author_override;
    gchar* title_override;
    gchar* copyright_override;

    /* Last status message sent by the OnShowStatus callback. This is returned by
       GetLastStatus */
    gchar* status_message; 

    /* Show status information in the image window. Set using SetImageStatus. */
    // XXXRGG: Implement this
    gboolean show_status_in_image_window;

    /* Enable/disable the context menu */
    gboolean enable_context_menu;

    /* XXXRGG: Not sure what this is (does it disable error messagebox's?)
       but you can get/set it with (Set)EnableMessageBox */
    gboolean enable_message_box;

    /* Determines whether errors go to the error callbacks, if the player
       should pop up a dialog */
    gboolean enable_error_events;
    
    /* Various other enables/disables */
    gboolean enable_original_size;
    gboolean enable_double_size; //XXXRGG What is DoubleSize in the context of an embedded player?
    gboolean enable_fullscreen;
    gboolean enable_seek;
        
    /* attr.controls is used to determine the type */
    HXEmbeddedWindowImageWindow* image_window;
    HXEmbeddedWindowMuteCtrl* mute_ctrl;
    HXEmbeddedWindowVolumeSlider* volume_slider;
    HXEmbeddedWindowPlayButton* play_button;
    HXEmbeddedWindowPauseButton* pause_button;
    HXEmbeddedWindowStopButton* stop_button;
    HXEmbeddedWindowPlayPauseButton* play_pause_button;
    HXEmbeddedWindowFastForwardButton* ff_button;
    HXEmbeddedWindowRewindButton* rewind_button;
    HXEmbeddedWindowMuteVolumePopup* mute_volume_popup;
    
    HXStatusDisplayPositionSlider* position_slider;
    HXStatusDisplayInfoPanel* info_panel;
    HXStatusDisplayPositionField* position_field;
    HXStatusDisplayStatusField* status_field;
    HXStatusDisplayTACCtrl* tac_ctrl;
    HXStatusDisplayCongestion* congestion;

    GtkWidget* unknown;
    
    /* timer for driving the OnPosLength and OnPositionChanged */
    gboolean pos_len_callback_timer_is_running; 
    
    /* Signal handler info */
    struct
    {
        HXPlayerCallbackInfo on_clip_closed;
        HXPlayerCallbackInfo on_clip_opened;
        HXPlayerCallbackInfo on_pos_length;
        HXPlayerCallbackInfo on_position_change;
        HXPlayerCallbackInfo on_post_seek;
        HXPlayerCallbackInfo on_pre_seek;
        HXPlayerCallbackInfo on_presentation_closed;
        HXPlayerCallbackInfo on_presentation_opened;

        HXPlayerSigInfo on_title_change;
        HXPlayerSigInfo on_author_change;
        HXPlayerSigInfo on_copyright_change;
        HXPlayerSigInfo on_prefetch_complete;
        HXPlayerSigInfo on_show_status;        
        HXPlayerSigInfo on_buffering;
        HXPlayerSigInfo on_contacting;
        HXPlayerSigInfo on_error_message;
        HXPlayerSigInfo on_goto_url;
        HXPlayerSigInfo on_mute_change;
        HXPlayerSigInfo on_play_state_change;
        HXPlayerSigInfo on_state_change;
        HXPlayerSigInfo on_volume_change;
    } player_handlers;

    struct
    {
        HXWindowSigInfo on_key_down;
        HXWindowSigInfo on_key_press;
        HXWindowSigInfo on_key_up;
        HXWindowSigInfo on_lbutton_down;
        HXWindowSigInfo on_lbutton_up;
        HXWindowSigInfo on_mouse_move;
        HXWindowSigInfo on_rbutton_down;
        HXWindowSigInfo on_rbutton_up;
    } window_handlers;

    /* Dialogs that can be opened by the embedded player */
    GtkDialog* about_dialog;
    GtkDialog* preferences_dialog;
    GtkDialog* statistics_dialog;

    gboolean is_seeking;