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1 | /* |
2 | * This file is part of DisOrder | |
3 | * Copyright (C) 2008 Richard Kettlewell | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
18 | * USA | |
19 | */ | |
20 | /** @file disobedience/playlists.c | |
21 | * @brief Playlist for Disobedience | |
22 | * | |
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23 | * The playlists management window contains: |
24 | * - a list of all playlists | |
25 | * - an add button | |
26 | * - a delete button | |
27 | * - a drag+drop capable view of the playlist | |
28 | * - a close button | |
fc36ecb7 RK |
29 | */ |
30 | #include "disobedience.h" | |
31 | ||
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32 | #if PLAYLISTS |
33 | ||
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34 | static void playlists_updated(void *v, |
35 | const char *err, | |
36 | int nvec, char **vec); | |
37 | ||
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38 | /** @brief Playlist editing window */ |
39 | static GtkWidget *playlists_window; | |
40 | ||
41 | /** @brief Tree model for list of playlists */ | |
42 | static GtkListStore *playlists_list; | |
43 | ||
44 | /** @brief Selection for list of playlists */ | |
45 | static GtkTreeSelection *playlists_selection; | |
46 | ||
47 | /** @brief Currently selected playlist */ | |
48 | static const char *playlists_selected; | |
49 | ||
50 | /** @brief Delete button */ | |
51 | static GtkWidget *playlists_delete_button; | |
52 | ||
fc36ecb7 RK |
53 | /** @brief Current list of playlists or NULL */ |
54 | char **playlists; | |
55 | ||
56 | /** @brief Count of playlists */ | |
57 | int nplaylists; | |
58 | ||
59 | /** @brief Schedule an update to the list of playlists */ | |
60 | static void playlists_update(const char attribute((unused)) *event, | |
61 | void attribute((unused)) *eventdata, | |
62 | void attribute((unused)) *callbackdata) { | |
63 | disorder_eclient_playlists(client, playlists_updated, 0); | |
64 | } | |
65 | ||
66 | /** @brief qsort() callback for playlist name comparison */ | |
67 | static int playlistcmp(const void *ap, const void *bp) { | |
68 | const char *a = *(char **)ap, *b = *(char **)bp; | |
69 | const char *ad = strchr(a, '.'), *bd = strchr(b, '.'); | |
70 | int c; | |
71 | ||
72 | /* Group owned playlists by owner */ | |
73 | if(ad && bd) { | |
74 | const int adn = ad - a, bdn = bd - b; | |
75 | if((c = strncmp(a, b, adn < bdn ? adn : bdn))) | |
76 | return c; | |
77 | /* Lexical order within playlists of a single owner */ | |
78 | return strcmp(ad + 1, bd + 1); | |
79 | } | |
80 | ||
81 | /* Owned playlists after shared ones */ | |
82 | if(ad) { | |
83 | return 1; | |
84 | } else if(bd) { | |
85 | return -1; | |
86 | } | |
87 | ||
88 | /* Lexical order of shared playlists */ | |
89 | return strcmp(a, b); | |
90 | } | |
91 | ||
92 | /** @brief Called with a new list of playlists */ | |
93 | static void playlists_updated(void attribute((unused)) *v, | |
94 | const char *err, | |
95 | int nvec, char **vec) { | |
96 | if(err) { | |
97 | playlists = 0; | |
98 | nplaylists = -1; | |
99 | /* Probably means server does not support playlists */ | |
100 | } else { | |
101 | playlists = vec; | |
102 | nplaylists = nvec; | |
103 | qsort(playlists, nplaylists, sizeof (char *), playlistcmp); | |
104 | } | |
105 | /* Tell our consumers */ | |
106 | event_raise("playlists-updated", 0); | |
107 | } | |
108 | ||
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109 | /** @brief Called to activate a playlist */ |
110 | static void menu_activate_playlist(GtkMenuItem *menuitem, | |
111 | gpointer attribute((unused)) user_data) { | |
112 | GtkLabel *label = GTK_LABEL(GTK_BIN(menuitem)->child); | |
113 | const char *playlist = gtk_label_get_text(label); | |
114 | ||
115 | fprintf(stderr, "activate playlist %s\n", playlist); /* TODO */ | |
116 | } | |
117 | ||
118 | /** @brief Called when the playlists change */ | |
119 | static void menu_playlists_changed(const char attribute((unused)) *event, | |
120 | void attribute((unused)) *eventdata, | |
121 | void attribute((unused)) *callbackdata) { | |
122 | if(!playlists_menu) | |
123 | return; /* OMG too soon */ | |
124 | GtkMenuShell *menu = GTK_MENU_SHELL(playlists_menu); | |
125 | /* TODO: we could be more sophisticated and only insert/remove widgets as | |
126 | * needed. For now that's too much effort. */ | |
127 | while(menu->children) | |
128 | gtk_container_remove(GTK_CONTAINER(menu), GTK_WIDGET(menu->children->data)); | |
129 | /* NB nplaylists can be -1 as well as 0 */ | |
130 | for(int n = 0; n < nplaylists; ++n) { | |
131 | GtkWidget *w = gtk_menu_item_new_with_label(playlists[n]); | |
132 | g_signal_connect(w, "activate", G_CALLBACK(menu_activate_playlist), 0); | |
133 | gtk_widget_show(w); | |
134 | gtk_menu_shell_append(menu, w); | |
135 | } | |
136 | gtk_widget_set_sensitive(playlists_widget, | |
137 | nplaylists > 0); | |
6acdbba4 RK |
138 | gtk_widget_set_sensitive(editplaylists_widget, |
139 | nplaylists >= 0); | |
f9b20469 RK |
140 | } |
141 | ||
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142 | /** @brief (Re-)populate the playlist tree model */ |
143 | static void playlists_fill(void) { | |
144 | GtkTreeIter iter[1]; | |
145 | ||
146 | if(!playlists_list) | |
147 | playlists_list = gtk_list_store_new(1, G_TYPE_STRING); | |
148 | gtk_list_store_clear(playlists_list); | |
149 | for(int n = 0; n < nplaylists; ++n) | |
150 | gtk_list_store_insert_with_values(playlists_list, iter, n/*position*/, | |
151 | 0, playlists[n], /* column 0 */ | |
152 | -1); /* no more cols */ | |
153 | // TODO reselect whatever was formerly selected if possible, if not then | |
154 | // zap the contents view | |
155 | } | |
156 | ||
157 | /** @brief Called when the selection might have changed */ | |
158 | static void playlists_selection_changed(GtkTreeSelection attribute((unused)) *treeselection, | |
159 | gpointer attribute((unused)) user_data) { | |
160 | GtkTreeIter iter; | |
161 | char *gselected, *selected; | |
162 | ||
163 | /* Identify the current selection */ | |
164 | if(gtk_tree_selection_get_selected(playlists_selection, 0, &iter)) { | |
165 | gtk_tree_model_get(GTK_TREE_MODEL(playlists_list), &iter, | |
166 | 0, &gselected, -1); | |
167 | selected = xstrdup(gselected); | |
168 | g_free(gselected); | |
169 | } else | |
170 | selected = 0; | |
171 | /* Eliminate no-change cases */ | |
172 | if(!selected && !playlists_selected) | |
173 | return; | |
174 | if(selected && playlists_selected && !strcmp(selected, playlists_selected)) | |
175 | return; | |
176 | /* There's been a change */ | |
177 | playlists_selected = selected; | |
178 | if(playlists_selected) { | |
179 | fprintf(stderr, "playlists selection changed\n'"); /* TODO */ | |
180 | gtk_widget_set_sensitive(playlists_delete_button, 1); | |
181 | } else | |
182 | gtk_widget_set_sensitive(playlists_delete_button, 0); | |
183 | } | |
184 | ||
185 | /** @brief Called when the 'add' button is pressed */ | |
186 | static void playlists_add(GtkButton attribute((unused)) *button, | |
187 | gpointer attribute((unused)) userdata) { | |
188 | /* Unselect whatever is selected */ | |
189 | gtk_tree_selection_unselect_all(playlists_selection); | |
190 | fprintf(stderr, "playlists_add\n");/* TODO */ | |
191 | } | |
192 | ||
193 | /** @brief Called when the 'Delete' button is pressed */ | |
194 | static void playlists_delete(GtkButton attribute((unused)) *button, | |
195 | gpointer attribute((unused)) userdata) { | |
196 | GtkWidget *yesno; | |
197 | int res; | |
198 | ||
199 | if(!playlists_selected) | |
200 | return; /* shouldn't happen */ | |
201 | yesno = gtk_message_dialog_new(GTK_WINDOW(playlists_window), | |
202 | GTK_DIALOG_MODAL, | |
203 | GTK_MESSAGE_QUESTION, | |
204 | GTK_BUTTONS_YES_NO, | |
205 | "Do you really want to delete user %s?" | |
206 | " This action cannot be undone.", | |
207 | playlists_selected); | |
208 | res = gtk_dialog_run(GTK_DIALOG(yesno)); | |
209 | gtk_widget_destroy(yesno); | |
210 | if(res == GTK_RESPONSE_YES) { | |
211 | disorder_eclient_playlist_delete(client, | |
212 | NULL/*playlists_delete_completed*/, | |
213 | playlists_selected, | |
214 | NULL); | |
215 | } | |
216 | } | |
217 | ||
218 | /** @brief Table of buttons below the playlist list */ | |
219 | static struct button playlists_buttons[] = { | |
220 | { | |
221 | GTK_STOCK_ADD, | |
222 | playlists_add, | |
223 | "Create a new playlist", | |
224 | 0 | |
225 | }, | |
226 | { | |
227 | GTK_STOCK_REMOVE, | |
228 | playlists_delete, | |
229 | "Delete a playlist", | |
230 | 0 | |
231 | }, | |
232 | }; | |
233 | #define NPLAYLISTS_BUTTONS (sizeof playlists_buttons / sizeof *playlists_buttons) | |
234 | ||
235 | /** @brief Keypress handler */ | |
236 | static gboolean playlists_keypress(GtkWidget attribute((unused)) *widget, | |
237 | GdkEventKey *event, | |
238 | gpointer attribute((unused)) user_data) { | |
239 | if(event->state) | |
240 | return FALSE; | |
241 | switch(event->keyval) { | |
242 | case GDK_Escape: | |
243 | gtk_widget_destroy(playlists_window); | |
244 | return TRUE; | |
245 | default: | |
246 | return FALSE; | |
247 | } | |
248 | } | |
249 | ||
250 | void edit_playlists(gpointer attribute((unused)) callback_data, | |
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251 | guint attribute((unused)) callback_action, |
252 | GtkWidget attribute((unused)) *menu_item) { | |
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253 | GtkWidget *tree, *hbox, *vbox, *buttons; |
254 | GtkCellRenderer *cr; | |
255 | GtkTreeViewColumn *col; | |
256 | ||
257 | /* If the window already exists, raise it */ | |
258 | if(playlists_window) { | |
259 | gtk_window_present(GTK_WINDOW(playlists_window)); | |
260 | return; | |
261 | } | |
262 | /* Create the window */ | |
263 | playlists_window = gtk_window_new(GTK_WINDOW_TOPLEVEL); | |
264 | gtk_widget_set_style(playlists_window, tool_style); | |
265 | g_signal_connect(playlists_window, "destroy", | |
266 | G_CALLBACK(gtk_widget_destroyed), &playlists_window); | |
267 | gtk_window_set_title(GTK_WINDOW(playlists_window), "Playlists Management"); | |
268 | /* TODO loads of this is very similar to (copied from!) users.c - can we | |
269 | * de-dupe? */ | |
270 | /* Keyboard shortcuts */ | |
271 | g_signal_connect(playlists_window, "key-press-event", | |
272 | G_CALLBACK(playlists_keypress), 0); | |
273 | /* default size is too small */ | |
274 | gtk_window_set_default_size(GTK_WINDOW(playlists_window), 240, 240); | |
275 | /* Create the list of playlist and populate it */ | |
276 | playlists_fill(); | |
277 | /* Create the tree view */ | |
278 | tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(playlists_list)); | |
279 | /* ...and the renderers for it */ | |
280 | cr = gtk_cell_renderer_text_new(); | |
281 | col = gtk_tree_view_column_new_with_attributes("Playlist", | |
282 | cr, | |
283 | "text", 0, | |
284 | NULL); | |
285 | gtk_tree_view_append_column(GTK_TREE_VIEW(tree), col); | |
286 | /* Get the selection for the view; set its mode; arrange for a callback when | |
287 | * it changes */ | |
288 | playlists_selected = NULL; | |
289 | playlists_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree)); | |
290 | gtk_tree_selection_set_mode(playlists_selection, GTK_SELECTION_BROWSE); | |
291 | g_signal_connect(playlists_selection, "changed", | |
292 | G_CALLBACK(playlists_selection_changed), NULL); | |
293 | ||
294 | /* Create the control buttons */ | |
295 | buttons = create_buttons_box(playlists_buttons, | |
296 | NPLAYLISTS_BUTTONS, | |
297 | gtk_hbox_new(FALSE, 1)); | |
298 | playlists_delete_button = playlists_buttons[1].widget; | |
299 | ||
300 | /* Buttons live below the list */ | |
301 | vbox = gtk_vbox_new(FALSE, 0); | |
302 | gtk_box_pack_start(GTK_BOX(vbox), scroll_widget(tree), TRUE/*expand*/, TRUE/*fill*/, 0); | |
303 | gtk_box_pack_start(GTK_BOX(vbox), buttons, FALSE/*expand*/, FALSE, 0); | |
304 | ||
305 | hbox = gtk_hbox_new(FALSE, 0); | |
306 | gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE/*expand*/, FALSE, 0); | |
307 | gtk_box_pack_start(GTK_BOX(hbox), gtk_event_box_new(), FALSE/*expand*/, FALSE, 2); | |
308 | // TODO something to edit the playlist in | |
309 | //gtk_box_pack_start(GTK_BOX(hbox), vbox2, TRUE/*expand*/, TRUE/*fill*/, 0); | |
310 | gtk_container_add(GTK_CONTAINER(playlists_window), frame_widget(hbox, NULL)); | |
311 | gtk_widget_show_all(playlists_window); | |
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312 | } |
313 | ||
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314 | /** @brief Initialize playlist support */ |
315 | void playlists_init(void) { | |
316 | /* We re-get all playlists upon any change... */ | |
317 | event_register("playlist-created", playlists_update, 0); | |
318 | event_register("playlist-modified", playlists_update, 0); | |
319 | event_register("playlist-deleted", playlists_update, 0); | |
320 | /* ...and on reconnection */ | |
321 | event_register("log-connected", playlists_update, 0); | |
322 | /* ...and from time to time */ | |
323 | event_register("periodic-slow", playlists_update, 0); | |
324 | /* ...and at startup */ | |
f9b20469 | 325 | event_register("playlists-updated", menu_playlists_changed, 0); |
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326 | playlists_update(0, 0, 0); |
327 | } | |
328 | ||
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329 | #endif |
330 | ||
fc36ecb7 RK |
331 | /* |
332 | Local Variables: | |
333 | c-basic-offset:2 | |
334 | comment-column:40 | |
335 | fill-column:79 | |
336 | indent-tabs-mode:nil | |
337 | End: | |
338 | */ |