* gtk.c : Gtk+ plugin for vlc
*****************************************************************************
* Copyright (C) 2000-2001 VideoLAN
- * $Id: gtk.c,v 1.6 2001/12/09 17:01:36 sam Exp $
+ * $Id: gtk.c,v 1.7 2001/12/30 07:09:55 sam Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
-#define MODULE_NAME gtk
-#include "modules_inner.h"
-
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include "defs.h"
-
#include <stdlib.h> /* malloc(), free() */
-#include <string.h>
+#include <errno.h> /* ENOMEM */
+#include <string.h> /* strerror() */
+#include <stdio.h>
+
+#include <videolan/vlc.h>
+
+#include <gtk/gtk.h>
+
+#include "stream_control.h"
+#include "input_ext-intf.h"
-#include "common.h" /* boolean_t, byte_t */
-#include "intf_msg.h"
-#include "threads.h"
-#include "mtime.h"
+#include "interface.h"
+#include "intf_playlist.h"
-#include "modules.h"
-#include "modules_export.h"
+#include "video.h"
+#include "video_output.h"
+
+#include "gtk_callbacks.h"
+#include "gtk_interface.h"
+#include "gtk_support.h"
+#include "gtk_menu.h"
+#include "gtk_display.h"
+#include "gtk_common.h"
/*****************************************************************************
- * Capabilities defined in the other files.
+ * Local prototypes.
*****************************************************************************/
-void _M( intf_getfunctions )( function_list_t * p_function_list );
+static void intf_getfunctions ( function_list_t * p_function_list );
+static int intf_Probe ( probedata_t *p_data );
+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 GtkManage ( gpointer p_data );
/*****************************************************************************
* Building configuration tree
*****************************************************************************/
MODULE_CONFIG_START
-ADD_WINDOW( "Configuration for Gtk+ module" )
- ADD_COMMENT( "For now, the Gtk+ module cannot be configured" )
MODULE_CONFIG_STOP
MODULE_INIT_START
- p_module->i_capabilities = MODULE_CAPABILITY_NULL
- | MODULE_CAPABILITY_INTF;
- p_module->psz_longname = "Gtk+ interface module";
+ SET_DESCRIPTION( "Gtk+ interface module" )
+#ifndef WIN32
+ if( getenv( "DISPLAY" ) == NULL )
+ {
+ ADD_CAPABILITY( INTF, 10 )
+ }
+ else
+#endif
+ {
+ ADD_CAPABILITY( INTF, 90 )
+ }
+ ADD_SHORTCUT( "gtk" )
+ ADD_PROGRAM( "gvlc" )
MODULE_INIT_STOP
MODULE_ACTIVATE_START
- _M( intf_getfunctions )( &p_module->p_functions->intf );
+ intf_getfunctions( &p_module->p_functions->intf );
MODULE_ACTIVATE_STOP
MODULE_DEACTIVATE_START
MODULE_DEACTIVATE_STOP
+/*****************************************************************************
+ * g_atexit: kludge to avoid the Gtk+ 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 Gtk+
+ * 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->pf_probe = intf_Probe;
+ 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_Probe: probe the interface and return a score
+ *****************************************************************************
+ * This function tries to initialize Gtk+ and returns a score to the
+ * plugin manager so that it can select the best plugin.
+ *****************************************************************************/
+static int intf_Probe( probedata_t *p_data )
+{
+#ifndef WIN32
+ if( getenv( "DISPLAY" ) == NULL )
+ {
+ return( 10 );
+ }
+#endif
+
+ return( 90 );
+}
+
+/*****************************************************************************
+ * 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 );
+ }
+
+ /* Initialize Gtk+ thread */
+ p_intf->p_sys->b_playing = 1;
+ 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 )
+{
+ /* Destroy structure */
+ free( p_intf->p_sys );
+}
+
+/*****************************************************************************
+ * intf_Run: Gtk+ 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 Gtk+ interface at runtime.
+ *****************************************************************************/
+static void intf_Run( intf_thread_t *p_intf )
+{
+ /* gtk_init needs to know the command line. We don't care, so we
+ * give it an empty one */
+ char *p_args[] = { "" };
+ char **pp_args = 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 Gtk+ */
+ gtk_init( &i_args, &pp_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();
+
+ /* Set the title of the main window */
+ gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
+ VOUT_TITLE " (Gtk+ 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( lookup_widget( p_intf->p_sys->p_playlist,
+ "playlist_clist") ),
+ GTK_DEST_DEFAULT_ALL, target_table,
+ 1, GDK_ACTION_COPY );
+
+ /* Get the interface labels */
+ p_intf->p_sys->p_slider_frame = GTK_FRAME( gtk_object_get_data(
+ GTK_OBJECT(p_intf->p_sys->p_window ), "slider_frame" ) );
+
+#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_preferences = NULL;
+ p_intf->p_sys->p_jump = NULL;
+
+ /* 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_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, GtkManage, p_intf );
+
+ /* Enter Gtk mode */
+ gtk_main();
+
+ /* Remove the timeout */
+ gtk_timeout_remove( i_dummy );
+
+ /* Launch stored callbacks */
+ 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 */
+
+/*****************************************************************************
+ * GtkManage: 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 GtkManage( gpointer p_data )
+{
+#define p_intf ((intf_thread_t *)p_data)
+
+ 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 );
+ }
+ gtk_menu_popup( GTK_MENU( p_intf->p_sys->p_popup ),
+ NULL, NULL, NULL, NULL, 0, GDK_CURRENT_TIME );
+ p_intf->b_menu_change = 0;
+ }
+
+ /* update the playlist */
+ GtkPlayListManage( p_data );
+
+ if( p_intf->p_input != NULL && !p_intf->b_die )
+ {
+ vlc_mutex_lock( &p_intf->p_input->stream.stream_lock );
+
+ /* New input or stream map change */
+ if( p_intf->p_input->stream.b_changed )
+ {
+ GtkModeManage( p_intf );
+ GtkSetupMenus( p_intf );
+ p_intf->p_sys->b_playing = 1;
+ }
+
+ /* Manage the slider */
+ if( p_intf->p_input->stream.b_seekable )
+ {
+ float newvalue = p_intf->p_sys->p_adj->value;
+
+#define p_area p_intf->p_input->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;
+
+ /* release the lock to be able to seek */
+ vlc_mutex_unlock( &p_intf->p_input->stream.stream_lock );
+ input_Seek( p_intf->p_input, i_seek );
+ vlc_mutex_lock( &p_intf->p_input->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_intf->p_input->stream.p_selected_area->i_part )
+ {
+ p_intf->p_sys->b_chapter_update = 1;
+ GtkSetupMenus( p_intf );
+ }
+
+ vlc_mutex_unlock( &p_intf->p_input->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
+}
projects / vlc / blobdiff