1 /*****************************************************************************
2 * gtk.c : Gtk+ plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000-2001 VideoLAN
5 * $Id: gtk.c,v 1.24 2002/06/01 12:31:59 sam Exp $
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
28 #include <errno.h> /* ENOMEM */
29 #include <string.h> /* strerror() */
37 #include "gtk_callbacks.h"
38 #include "gtk_interface.h"
39 #include "gtk_support.h"
41 #include "gtk_display.h"
42 #include "gtk_common.h"
44 /*****************************************************************************
46 *****************************************************************************/
47 static void intf_getfunctions ( function_list_t * p_function_list );
48 static int intf_Open ( intf_thread_t *p_intf );
49 static void intf_Close ( intf_thread_t *p_intf );
50 static void intf_Run ( intf_thread_t *p_intf );
52 static gint GtkManage ( gpointer p_data );
54 /*****************************************************************************
55 * Local variables (mutex-protected).
56 *****************************************************************************/
57 static void ** pp_global_data;
59 /*****************************************************************************
60 * Building configuration tree
61 *****************************************************************************/
62 #define TOOLTIPS_TEXT N_("show tooltips")
63 #define TOOLTIPS_LONGTEXT N_("Show tooltips for configuration options.")
65 #define PREFS_MAXH_TEXT N_("maximum height for the configuration windows")
66 #define PREFS_MAXH_LONGTEXT N_( \
67 "You can set the maximum height that the configuration windows in the " \
68 "preferences menu will occupy.")
71 ADD_CATEGORY_HINT( N_("Miscellaneous"), NULL )
72 ADD_BOOL( "gtk-tooltips", 1, GtkHideTooltips, TOOLTIPS_TEXT, TOOLTIPS_LONGTEXT)
73 ADD_INTEGER( "gtk-prefs-maxh", 480, NULL, PREFS_MAXH_TEXT, PREFS_MAXH_LONGTEXT)
77 pp_global_data = p_module->p_vlc->pp_global_data;
78 SET_DESCRIPTION( _("Gtk+ interface module") )
80 if( getenv( "DISPLAY" ) == NULL )
82 ADD_CAPABILITY( INTF, 10 )
87 ADD_CAPABILITY( INTF, 90 )
93 intf_getfunctions( &p_module->p_functions->intf );
96 MODULE_DEACTIVATE_START
97 MODULE_DEACTIVATE_STOP
99 /*****************************************************************************
100 * g_atexit: kludge to avoid the Gtk+ thread to segfault at exit
101 *****************************************************************************
102 * gtk_init() makes several calls to g_atexit() which calls atexit() to
103 * register tidying callbacks to be called at program exit. Since the Gtk+
104 * plugin is likely to be unloaded at program exit, we have to export this
105 * symbol to intercept the g_atexit() calls. Talk about crude hack.
106 *****************************************************************************/
107 void g_atexit( GVoidFunc func )
109 intf_thread_t *p_intf = (intf_thread_t *)*pp_global_data;
113 i_dummy < MAX_ATEXIT && p_intf->p_sys->pf_callback[i_dummy] != NULL;
119 if( i_dummy >= MAX_ATEXIT - 1 )
121 msg_Err( p_intf, "too many atexit() callbacks to register" );
125 p_intf->p_sys->pf_callback[i_dummy] = func;
126 p_intf->p_sys->pf_callback[i_dummy + 1] = NULL;
129 /*****************************************************************************
130 * Functions exported as capabilities. They are declared as static so that
131 * we don't pollute the namespace too much.
132 *****************************************************************************/
133 static void intf_getfunctions( function_list_t * p_function_list )
135 p_function_list->functions.intf.pf_open = intf_Open;
136 p_function_list->functions.intf.pf_close = intf_Close;
137 p_function_list->functions.intf.pf_run = intf_Run;
140 /*****************************************************************************
141 * intf_Open: initialize and create window
142 *****************************************************************************/
143 static int intf_Open( intf_thread_t *p_intf )
145 /* Allocate instance and initialize some members */
146 p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
147 if( p_intf->p_sys == NULL )
149 msg_Err( p_intf, "out of memory" );
153 p_intf->p_sys->p_sub = msg_Subscribe( p_intf->p_this );
155 /* Initialize Gtk+ thread */
156 p_intf->p_sys->b_playing = 0;
157 p_intf->p_sys->b_popup_changed = 0;
158 p_intf->p_sys->b_window_changed = 0;
159 p_intf->p_sys->b_playlist_changed = 0;
161 p_intf->p_sys->p_input = NULL;
162 p_intf->p_sys->i_playing = -1;
163 p_intf->p_sys->b_slider_free = 1;
165 p_intf->p_sys->pf_callback[0] = NULL;
167 p_intf->p_sys->i_part = 0;
172 /*****************************************************************************
173 * intf_Close: destroy interface window
174 *****************************************************************************/
175 static void intf_Close( intf_thread_t *p_intf )
177 msg_Unsubscribe( p_intf->p_this, p_intf->p_sys->p_sub );
179 /* Destroy structure */
180 free( p_intf->p_sys );
183 /*****************************************************************************
184 * intf_Run: Gtk+ thread
185 *****************************************************************************
186 * this part of the interface is in a separate thread so that we can call
187 * gtk_main() from within it without annoying the rest of the program.
188 * XXX: the approach may look kludgy, and probably is, but I could not find
189 * a better way to dynamically load a Gtk+ interface at runtime.
190 *****************************************************************************/
191 static void intf_Run( intf_thread_t *p_intf )
193 /* gtk_init needs to know the command line. We don't care, so we
194 * give it an empty one */
195 char *p_args[] = { "" };
196 char **pp_args = p_args;
200 /* The data types we are allowed to receive */
201 static GtkTargetEntry target_table[] =
203 { "STRING", 0, DROP_ACCEPT_STRING },
204 { "text/uri-list", 0, DROP_ACCEPT_TEXT_URI_LIST },
205 { "text/plain", 0, DROP_ACCEPT_TEXT_PLAIN }
208 /* Initialize Gtk+ */
210 /* gtk_init will register stuff with g_atexit, so we need to take
211 * the global lock if we want to be able to intercept the calls */
212 vlc_mutex_lock( p_intf->p_vlc->p_global_lock );
213 *p_intf->p_vlc->pp_global_data = p_intf;
214 gtk_init( &i_args, &pp_args );
215 vlc_mutex_unlock( p_intf->p_vlc->p_global_lock );
217 /* Create some useful widgets that will certainly be used */
218 p_intf->p_sys->p_window = create_intf_window();
219 p_intf->p_sys->p_popup = create_intf_popup();
220 p_intf->p_sys->p_playlist = create_intf_playlist();
221 p_intf->p_sys->p_messages = create_intf_messages();
222 p_intf->p_sys->p_tooltips = gtk_tooltips_new();
224 /* Set the title of the main window */
225 gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
226 VOUT_TITLE " (Gtk+ interface)");
228 /* Accept file drops on the main window */
229 gtk_drag_dest_set( GTK_WIDGET( p_intf->p_sys->p_window ),
230 GTK_DEST_DEFAULT_ALL, target_table,
231 1, GDK_ACTION_COPY );
233 /* Accept file drops on the playlist window */
234 gtk_drag_dest_set( GTK_WIDGET( lookup_widget( p_intf->p_sys->p_playlist,
236 GTK_DEST_DEFAULT_ALL, target_table,
237 1, GDK_ACTION_COPY );
239 /* Get the slider object */
240 p_intf->p_sys->p_slider_frame = GTK_FRAME( gtk_object_get_data(
241 GTK_OBJECT( p_intf->p_sys->p_window ), "slider_frame" ) );
243 /* Configure the log window */
244 p_intf->p_sys->p_messages_text = GTK_TEXT( gtk_object_get_data(
245 GTK_OBJECT(p_intf->p_sys->p_messages ), "messages_textbox" ) );
246 gtk_text_set_line_wrap( p_intf->p_sys->p_messages_text, TRUE);
247 gtk_text_set_word_wrap( p_intf->p_sys->p_messages_text, FALSE);
249 /* Get the interface labels */
250 #define P_LABEL( name ) GTK_LABEL( gtk_object_get_data( \
251 GTK_OBJECT( p_intf->p_sys->p_window ), name ) )
252 p_intf->p_sys->p_label_title = P_LABEL( "title_label" );
253 p_intf->p_sys->p_label_chapter = P_LABEL( "chapter_label" );
256 /* Connect the date display to the slider */
257 #define P_SLIDER GTK_RANGE( gtk_object_get_data( \
258 GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
259 p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );
261 gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
262 GTK_SIGNAL_FUNC( GtkDisplayDate ), NULL );
263 p_intf->p_sys->f_adj_oldvalue = 0;
266 /* We don't create these ones yet because we perhaps won't need them */
267 p_intf->p_sys->p_about = NULL;
268 p_intf->p_sys->p_modules = NULL;
269 p_intf->p_sys->p_fileopen = NULL;
270 p_intf->p_sys->p_disc = NULL;
271 p_intf->p_sys->p_sat = NULL;
272 p_intf->p_sys->p_network = NULL;
273 p_intf->p_sys->p_jump = NULL;
275 /* Hide tooltips if the option is set */
276 if( !config_GetInt( p_intf, "gtk-tooltips" ) )
278 gtk_tooltips_disable( p_intf->p_sys->p_tooltips );
281 /* Store p_intf to keep an eye on it */
282 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
285 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
288 gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_playlist ),
291 gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_messages ),
294 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_adj),
297 /* Show the control window */
298 gtk_widget_show( p_intf->p_sys->p_window );
300 /* Sleep to avoid using all CPU - since some interfaces needs to access
301 * keyboard events, a 100ms delay is a good compromise */
302 i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GtkManage, p_intf );
307 /* Remove the timeout */
308 gtk_timeout_remove( i_dummy );
310 /* Destroy the Tooltips structure */
311 gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_tooltips) );
313 /* Launch stored callbacks */
315 i_dummy < MAX_ATEXIT && p_intf->p_sys->pf_callback[i_dummy] != NULL;
318 p_intf->p_sys->pf_callback[i_dummy]();
322 /* following functions are local */
324 /*****************************************************************************
325 * GtkManage: manage main thread messages
326 *****************************************************************************
327 * In this function, called approx. 10 times a second, we check what the
328 * main program wanted to tell us.
329 *****************************************************************************/
330 static gint GtkManage( gpointer p_data )
332 #define p_intf ((intf_thread_t *)p_data)
335 vlc_mutex_lock( &p_intf->change_lock );
337 /* If the "display popup" flag has changed */
338 if( p_intf->b_menu_change )
340 if( !GTK_IS_WIDGET( p_intf->p_sys->p_popup ) )
342 p_intf->p_sys->p_popup = create_intf_popup();
343 gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_popup ),
346 gtk_menu_popup( GTK_MENU( p_intf->p_sys->p_popup ),
347 NULL, NULL, NULL, NULL, 0, GDK_CURRENT_TIME );
348 p_intf->b_menu_change = 0;
351 /* Update the log window */
352 vlc_mutex_lock( p_intf->p_sys->p_sub->p_lock );
353 i_stop = *p_intf->p_sys->p_sub->pi_stop;
354 vlc_mutex_unlock( p_intf->p_sys->p_sub->p_lock );
356 if( p_intf->p_sys->p_sub->i_start != i_stop )
358 static GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
359 static GdkColor gray = { 0, 0xaaaa, 0xaaaa, 0xaaaa };
360 static GdkColor yellow = { 0, 0xffff, 0xffff, 0x6666 };
361 static GdkColor red = { 0, 0xffff, 0x6666, 0x6666 };
363 static const char * ppsz_type[4] = { ": ", " error: ", " warning: ",
365 static GdkColor * pp_color[4] = { &white, &red, &yellow, &gray };
367 for( i_start = p_intf->p_sys->p_sub->i_start;
369 i_start = (i_start+1) % VLC_MSG_QSIZE )
371 /* Append all messages to log window */
372 gtk_text_insert( p_intf->p_sys->p_messages_text, NULL, &gray,
373 NULL, p_intf->p_sys->p_sub->p_msg[i_start].psz_module, -1 );
375 gtk_text_insert( p_intf->p_sys->p_messages_text, NULL, &gray,
376 NULL, ppsz_type[p_intf->p_sys->p_sub->p_msg[i_start].i_type],
379 gtk_text_insert( p_intf->p_sys->p_messages_text, NULL,
380 pp_color[p_intf->p_sys->p_sub->p_msg[i_start].i_type], NULL,
381 p_intf->p_sys->p_sub->p_msg[i_start].psz_msg, -1 );
383 gtk_text_insert( p_intf->p_sys->p_messages_text, NULL, &gray,
387 vlc_mutex_lock( p_intf->p_sys->p_sub->p_lock );
388 p_intf->p_sys->p_sub->i_start = i_start;
389 vlc_mutex_unlock( p_intf->p_sys->p_sub->p_lock );
391 gtk_text_set_point( p_intf->p_sys->p_messages_text,
392 gtk_text_get_length( p_intf->p_sys->p_messages_text ) );
395 /* Update the playlist */
396 GtkPlayListManage( p_data );
398 /* Update the input */
399 if( p_intf->p_sys->p_input != NULL )
401 if( p_intf->p_sys->p_input->b_dead )
403 vlc_object_release( p_intf->p_sys->p_input );
404 p_intf->p_sys->p_input = NULL;
408 if( p_intf->p_sys->p_input == NULL )
410 p_intf->p_sys->p_input = vlc_object_find( p_intf->p_vlc,
411 VLC_OBJECT_INPUT, FIND_CHILD );
414 if( p_intf->p_sys->p_input )
416 input_thread_t *p_input = p_intf->p_sys->p_input;
418 vlc_mutex_lock( &p_input->stream.stream_lock );
420 if( !p_input->b_die )
422 /* New input or stream map change */
423 if( p_input->stream.b_changed )
425 GtkModeManage( p_intf );
426 GtkSetupMenus( p_intf );
427 p_intf->p_sys->b_playing = 1;
430 /* Manage the slider */
431 if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
433 float newvalue = p_intf->p_sys->p_adj->value;
435 #define p_area p_input->stream.p_selected_area
436 /* If the user hasn't touched the slider since the last time,
437 * then the input can safely change it */
438 if( newvalue == p_intf->p_sys->f_adj_oldvalue )
440 /* Update the value */
441 p_intf->p_sys->p_adj->value =
442 p_intf->p_sys->f_adj_oldvalue =
443 ( 100. * p_area->i_tell ) / p_area->i_size;
445 gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
448 /* Otherwise, send message to the input if the user has
449 * finished dragging the slider */
450 else if( p_intf->p_sys->b_slider_free )
452 off_t i_seek = ( newvalue * p_area->i_size ) / 100;
454 /* release the lock to be able to seek */
455 vlc_mutex_unlock( &p_input->stream.stream_lock );
456 input_Seek( p_input, i_seek, INPUT_SEEK_SET );
457 vlc_mutex_lock( &p_input->stream.stream_lock );
459 /* Update the old value */
460 p_intf->p_sys->f_adj_oldvalue = newvalue;
465 if( p_intf->p_sys->i_part !=
466 p_input->stream.p_selected_area->i_part )
468 p_intf->p_sys->b_chapter_update = 1;
469 GtkSetupMenus( p_intf );
473 vlc_mutex_unlock( &p_input->stream.stream_lock );
475 else if( p_intf->p_sys->b_playing && !p_intf->p_vlc->b_die )
477 GtkModeManage( p_intf );
478 p_intf->p_sys->b_playing = 0;
481 if( p_intf->p_vlc->b_die )
483 vlc_mutex_unlock( &p_intf->change_lock );
485 /* Prepare to die, young Skywalker */
492 vlc_mutex_unlock( &p_intf->change_lock );