| 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 | * |
| 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 |
| 29 | */ |
| 30 | #include "disobedience.h" |
| 31 | |
| 32 | #if PLAYLISTS |
| 33 | |
| 34 | static void playlists_updated(void *v, |
| 35 | const char *err, |
| 36 | int nvec, char **vec); |
| 37 | |
| 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 | |
| 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 | |
| 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); |
| 138 | gtk_widget_set_sensitive(editplaylists_widget, |
| 139 | nplaylists >= 0); |
| 140 | } |
| 141 | |
| 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, |
| 251 | guint attribute((unused)) callback_action, |
| 252 | GtkWidget attribute((unused)) *menu_item) { |
| 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); |
| 312 | } |
| 313 | |
| 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 */ |
| 325 | event_register("playlists-updated", menu_playlists_changed, 0); |
| 326 | playlists_update(0, 0, 0); |
| 327 | } |
| 328 | |
| 329 | #endif |
| 330 | |
| 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 | */ |