/*****************************************************************************
* gnome.c : Gnome plugin for vlc
*****************************************************************************
* Copyright (C) 2000 VideoLAN
* $Id: gnome.c,v 1.17 2002/04/19 13:56:11 sam Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <errno.h> /* ENOMEM */
#include <string.h> /* strerror() */
#include <stdio.h>
#include <videolan/vlc.h>
#include <gnome.h>
#include "stream_control.h"
#include "input_ext-intf.h"
#include "interface.h"
#include "intf_playlist.h"
#include "video.h"
#include "video_output.h"
#include "gnome_callbacks.h"
#include "gnome_interface.h"
#include "gnome_support.h"
#include "gtk_display.h"
#include "gtk_common.h"
/*****************************************************************************
* Local prototypes.
*****************************************************************************/
static void intf_getfunctions( function_list_t * p_function_list );
static int intf_Open ( intf_thread_t *p_intf );
static void intf_Close ( intf_thread_t *p_intf );
static void intf_Run ( intf_thread_t *p_intf );
static gint GnomeManage ( gpointer p_data );
/*****************************************************************************
* Building configuration tree
*****************************************************************************/
#define TOOLTIPS_TEXT N_("hide tooltips")
#define TOOLTIPS_LONGTEXT N_("Do not show tooltips for configuration options.")
#define PREFS_MAXH_TEXT N_("maximum height for the configuration windows")
#define PREFS_MAXH_LONGTEXT N_( \
"You can set the maximum height that the configuration windows in the " \
"preferences menu will occupy.")
MODULE_CONFIG_START
ADD_CATEGORY_HINT( N_("Miscellaneous"), NULL )
ADD_BOOL ( "gnome_hide_tooltips", NULL, TOOLTIPS_TEXT,
TOOLTIPS_LONGTEXT )
ADD_INTEGER ( "gnome_prefs_maxh", 480, NULL, PREFS_MAXH_TEXT,
PREFS_MAXH_LONGTEXT )
MODULE_CONFIG_STOP
MODULE_INIT_START
SET_DESCRIPTION( _("Gnome interface module") )
#ifndef WIN32
if( getenv( "DISPLAY" ) == NULL )
{
ADD_CAPABILITY( INTF, 15 )
}
else
#endif
{
ADD_CAPABILITY( INTF, 100 )
}
ADD_SHORTCUT( "gnome" )
ADD_PROGRAM( "gnome-vlc" )
MODULE_INIT_STOP
MODULE_ACTIVATE_START
intf_getfunctions( &p_module->p_functions->intf );
MODULE_ACTIVATE_STOP
MODULE_DEACTIVATE_START
MODULE_DEACTIVATE_STOP
/*****************************************************************************
* g_atexit: kludge to avoid the Gnome thread to segfault at exit
*****************************************************************************
* gtk_init() makes several calls to g_atexit() which calls atexit() to
* register tidying callbacks to be called at program exit. Since the Gnome
* plugin is likely to be unloaded at program exit, we have to export this
* symbol to intercept the g_atexit() calls. Talk about crude hack.
*****************************************************************************/
void g_atexit( GVoidFunc func )
{
intf_thread_t *p_intf = p_main->p_intf;
int i_dummy;
for( i_dummy = 0;
i_dummy < MAX_ATEXIT && p_intf->p_sys->pf_callback[i_dummy] != NULL;
i_dummy++ )
{
;
}
if( i_dummy >= MAX_ATEXIT - 1 )
{
intf_ErrMsg( "intf error: too many atexit() callbacks to register" );
return;
}
p_intf->p_sys->pf_callback[i_dummy] = func;
p_intf->p_sys->pf_callback[i_dummy + 1] = NULL;
}
/*****************************************************************************
* Functions exported as capabilities. They are declared as static so that
* we don't pollute the namespace too much.
*****************************************************************************/
static void intf_getfunctions( function_list_t * p_function_list )
{
p_function_list->functions.intf.pf_open = intf_Open;
p_function_list->functions.intf.pf_close = intf_Close;
p_function_list->functions.intf.pf_run = intf_Run;
}
/*****************************************************************************
* intf_Open: initialize and create window
*****************************************************************************/
static int intf_Open( intf_thread_t *p_intf )
{
/* Allocate instance and initialize some members */
p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
if( p_intf->p_sys == NULL )
{
intf_ErrMsg("error: %s", strerror(ENOMEM));
return( 1 );
}
p_intf->p_sys->p_sub = intf_MsgSub();
/* Initialize Gnome thread */
p_intf->p_sys->b_playing = 0;
p_intf->p_sys->b_popup_changed = 0;
p_intf->p_sys->b_window_changed = 0;
p_intf->p_sys->b_playlist_changed = 0;
p_intf->p_sys->i_playing = -1;
p_intf->p_sys->b_slider_free = 1;
p_intf->p_sys->pf_callback[0] = NULL;
return( 0 );
}
/*****************************************************************************
* intf_Close: destroy interface window
*****************************************************************************/
static void intf_Close( intf_thread_t *p_intf )
{
intf_MsgUnsub( p_intf->p_sys->p_sub );
/* Destroy structure */
free( p_intf->p_sys );
}
/*****************************************************************************
* intf_Run: Gnome thread
*****************************************************************************
* this part of the interface is in a separate thread so that we can call
* gtk_main() from within it without annoying the rest of the program.
* XXX: the approach may look kludgy, and probably is, but I could not find
* a better way to dynamically load a Gnome interface at runtime.
*****************************************************************************/
static void intf_Run( intf_thread_t *p_intf )
{
/* gnome_init needs to know the command line. We don't care, so we
* give it an empty one */
char *p_args[] = { "" };
int i_args = 1;
int i_dummy;
/* The data types we are allowed to receive */
static GtkTargetEntry target_table[] =
{
{ "STRING", 0, DROP_ACCEPT_STRING },
{ "text/uri-list", 0, DROP_ACCEPT_TEXT_URI_LIST },
{ "text/plain", 0, DROP_ACCEPT_TEXT_PLAIN }
};
/* Initialize Gnome */
gnome_init( p_main->psz_arg0, VERSION, i_args, p_args );
/* Create some useful widgets that will certainly be used */
p_intf->p_sys->p_window = create_intf_window( );
p_intf->p_sys->p_popup = create_intf_popup( );
p_intf->p_sys->p_playlist = create_intf_playlist();
p_intf->p_sys->p_messages = create_intf_messages();
/* Set the title of the main window */
gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
VOUT_TITLE " (Gnome interface)");
/* Accept file drops on the main window */
gtk_drag_dest_set( GTK_WIDGET( p_intf->p_sys->p_window ),
GTK_DEST_DEFAULT_ALL, target_table,
1, GDK_ACTION_COPY );
/* Accept file drops on the playlist window */
gtk_drag_dest_set( GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
p_intf->p_sys->p_playlist ), "playlist_clist") ),
GTK_DEST_DEFAULT_ALL, target_table,
1, GDK_ACTION_COPY );
/* Get the slider object */
p_intf->p_sys->p_slider_frame = gtk_object_get_data(
GTK_OBJECT( p_intf->p_sys->p_window ), "slider_frame" );
/* Configure the log window */
p_intf->p_sys->p_messages_text = GTK_TEXT( gtk_object_get_data(
GTK_OBJECT(p_intf->p_sys->p_messages ), "messages_textbox" ) );
gtk_text_set_line_wrap( p_intf->p_sys->p_messages_text, TRUE);
gtk_text_set_word_wrap( p_intf->p_sys->p_messages_text, FALSE);
/* Get the interface labels */
#define P_LABEL( name ) GTK_LABEL( gtk_object_get_data( \
GTK_OBJECT( p_intf->p_sys->p_window ), name ) )
p_intf->p_sys->p_label_title = P_LABEL( "title_label" );
p_intf->p_sys->p_label_chapter = P_LABEL( "chapter_label" );
#undef P_LABEL
/* Connect the date display to the slider */
#define P_SLIDER GTK_RANGE( gtk_object_get_data( \
GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );
gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
GTK_SIGNAL_FUNC( GtkDisplayDate ), NULL );
p_intf->p_sys->f_adj_oldvalue = 0;
#undef P_SLIDER
/* We don't create these ones yet because we perhaps won't need them */
p_intf->p_sys->p_about = NULL;
p_intf->p_sys->p_modules = NULL;
p_intf->p_sys->p_fileopen = NULL;
p_intf->p_sys->p_disc = NULL;
p_intf->p_sys->p_network = NULL;
p_intf->p_sys->p_sat = NULL;
p_intf->p_sys->p_jump = NULL;
p_intf->p_sys->p_tooltips = gtk_tooltips_new();
/* Hide tooltips if the option is set */
if( config_GetIntVariable( "gnome_hide_tooltips" ) )
gtk_tooltips_disable( p_intf->p_sys->p_tooltips );
/* Store p_intf to keep an eye on it */
gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
"p_intf", p_intf );
gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
"p_intf", p_intf );
gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_playlist ),
"p_intf", p_intf );
gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_messages ),
"p_intf", p_intf );
gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_adj),
"p_intf", p_intf );
/* Show the control window */
gtk_widget_show( p_intf->p_sys->p_window );
/* Sleep to avoid using all CPU - since some interfaces needs to access
* keyboard events, a 100ms delay is a good compromise */
i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GnomeManage, p_intf );
/* Enter gnome mode */
gtk_main();
/* Remove the timeout */
gtk_timeout_remove( i_dummy );
/* Destroy the Tooltips structure */
gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_tooltips) );
/* Get rid of stored callbacks so we can unload the plugin */
for( i_dummy = 0;
i_dummy < MAX_ATEXIT && p_intf->p_sys->pf_callback[i_dummy] != NULL;
i_dummy++ )
{
p_intf->p_sys->pf_callback[i_dummy]();
}
}
/* following functions are local */
/*****************************************************************************
* GnomeManage: manage main thread messages
*****************************************************************************
* In this function, called approx. 10 times a second, we check what the
* main program wanted to tell us.
*****************************************************************************/
static gint GnomeManage( gpointer p_data )
{
#define p_intf ((intf_thread_t *)p_data)
static GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
static GdkColor red = { 0, 0xffff, 0x6666, 0x6666 };
static GdkColor gray = { 0, 0xaaaa, 0xaaaa, 0xaaaa };
GdkColor *p_color;
int i_start, i_stop;
vlc_mutex_lock( &p_intf->change_lock );
/* If the "display popup" flag has changed */
if( p_intf->b_menu_change )
{
if( !GTK_IS_WIDGET( p_intf->p_sys->p_popup ) )
{
p_intf->p_sys->p_popup = create_intf_popup();
gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_popup ),
"p_popup", p_intf );
}
gnome_popup_menu_do_popup( p_intf->p_sys->p_popup,
NULL, NULL, NULL, NULL );
p_intf->b_menu_change = 0;
}
/* Update the log window */
vlc_mutex_lock( p_intf->p_sys->p_sub->p_lock );
i_stop = *p_intf->p_sys->p_sub->pi_stop;
vlc_mutex_unlock( p_intf->p_sys->p_sub->p_lock );
if( p_intf->p_sys->p_sub->i_start != i_stop )
{
for( i_start = p_intf->p_sys->p_sub->i_start;
i_start != i_stop;
i_start = (i_start+1) % INTF_MSG_QSIZE )
{
/* Append all messages to log window */
switch( p_intf->p_sys->p_sub->p_msg[i_start].i_type )
{
case INTF_MSG_ERR:
p_color = &red;
break;
case INTF_MSG_WARN:
p_color = &gray;
break;
default:
p_color = &white;
break;
}
gtk_text_insert( p_intf->p_sys->p_messages_text, NULL, p_color,
NULL, p_intf->p_sys->p_sub->p_msg[i_start].psz_msg, -1 );
gtk_text_insert( p_intf->p_sys->p_messages_text, NULL, p_color,
NULL, "\n", -1 );
}
vlc_mutex_lock( p_intf->p_sys->p_sub->p_lock );
p_intf->p_sys->p_sub->i_start = i_start;
vlc_mutex_unlock( p_intf->p_sys->p_sub->p_lock );
gtk_text_set_point( p_intf->p_sys->p_messages_text,
gtk_text_get_length( p_intf->p_sys->p_messages_text ) );
}
/* Update the playlist */
GtkPlayListManage( p_intf );
if( p_input_bank->pp_input[0] != NULL && !p_intf->b_die )
{
vlc_mutex_lock( &p_input_bank->pp_input[0]->stream.stream_lock );
if( !p_input_bank->pp_input[0]->b_die )
{
/* New input or stream map change */
if( p_input_bank->pp_input[0]->stream.b_changed )
{
GtkModeManage( p_intf );
GtkSetupMenus( p_intf );
p_intf->p_sys->b_playing = 1;
}
/* Manage the slider */
if( p_input_bank->pp_input[0]->stream.b_seekable &&
p_intf->p_sys->b_playing )
{
float newvalue;
newvalue = p_intf->p_sys->p_adj->value;
#define p_area p_input_bank->pp_input[0]->stream.p_selected_area
/* If the user hasn't touched the slider since the last time,
* then the input can safely change it */
if( newvalue == p_intf->p_sys->f_adj_oldvalue )
{
/* Update the value */
p_intf->p_sys->p_adj->value = p_intf->p_sys->f_adj_oldvalue =
( 100. * p_area->i_tell ) / p_area->i_size;
gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
"value_changed" );
}
/* Otherwise, send message to the input if the user has
* finished dragging the slider */
else if( p_intf->p_sys->b_slider_free )
{
off_t i_seek = ( newvalue * p_area->i_size ) / 100;
vlc_mutex_unlock( &p_input_bank->pp_input[0]->stream.stream_lock );
input_Seek( p_input_bank->pp_input[0], i_seek );
vlc_mutex_lock( &p_input_bank->pp_input[0]->stream.stream_lock );
/* Update the old value */
p_intf->p_sys->f_adj_oldvalue = newvalue;
}
#undef p_area
}
if( p_intf->p_sys->i_part !=
p_input_bank->pp_input[0]->stream.p_selected_area->i_part )
{
p_intf->p_sys->b_chapter_update = 1;
GtkSetupMenus( p_intf );
}
}
vlc_mutex_unlock( &p_input_bank->pp_input[0]->stream.stream_lock );
}
else if( p_intf->p_sys->b_playing && !p_intf->b_die )
{
GtkModeManage( p_intf );
p_intf->p_sys->b_playing = 0;
}
/* Manage core vlc functions through the callback */
p_intf->pf_manage( p_intf );
if( p_intf->b_die )
{
vlc_mutex_unlock( &p_intf->change_lock );
/* Prepare to die, young Skywalker */
gtk_main_quit();
/* Just in case */
return( FALSE );
}
vlc_mutex_unlock( &p_intf->change_lock );
return( TRUE );
#undef p_intf
}