chiark - git - mdw - disorder/blob - disobedience/choose-menu.c

   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 3 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,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU 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, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file disobedience/choose-menu.c
  19  * @brief Popup menu for choose screen
  20  */
  21 #include "disobedience.h"
  22 #include "popup.h"
  23 #include "choose.h"
  24
  25 static void choose_playchildren_callback(GtkTreeModel *model,
  26                                          GtkTreePath *path,
  27                                          GtkTreeIter *iter,
  28                                          gpointer data);
  29 static void choose_playchildren_received(void *v,
  30                                          const char *err,
  31                                          int nvec, char **vec);
  32 static void choose_playchildren_played(void *v,
  33                                        const char *err,
  34                                        const char *id);
  35
  36 /** @brief Popup menu */
  37 static GtkWidget *choose_menu;
  38
  39 /** @brief Path to directory pending a "select children" operation */
  40 static GtkTreePath *choose_eventually_select_children;
  41
  42 /** @brief Should edit->select all be sensitive?  No, for the choose tab. */
  43 static int choose_selectall_sensitive(void attribute((unused)) *extra) {
  44   return FALSE;
  45 }
  46
  47 /** @brief Activate edit->select all (which should do nothing) */
  48 static void choose_selectall_activate(GtkMenuItem attribute((unused)) *item,
  49                                       gpointer attribute((unused)) userdata) {
  50 }
  51
  52 /** @brief Should 'select none' be sensitive
  53  *
  54  * Yes if anything is selected.
  55  */
  56 static int choose_selectnone_sensitive(void attribute((unused)) *extra) {
  57   return gtk_tree_selection_count_selected_rows(choose_selection) > 0;
  58 }
  59
  60 /** @brief Activate select none */
  61 static void choose_selectnone_activate(GtkMenuItem attribute((unused)) *item,
  62                                        gpointer attribute((unused)) userdata) {
  63   gtk_tree_selection_unselect_all(choose_selection);
  64 }
  65
  66 static void choose_play_sensitive_callback(GtkTreeModel attribute((unused)) *model,
  67                                            GtkTreePath attribute((unused)) *path,
  68                                            GtkTreeIter *iter,
  69                                            gpointer data) {
  70   int *filesp = data;
  71
  72   if(*filesp == -1)
  73     return;
  74   if(choose_is_dir(iter))
  75     *filesp = -1;
  76   else if(choose_is_file(iter))
  77     ++*filesp;
  78 }
  79
  80 /** @brief Should 'play' be sensitive?
  81  *
  82  * Yes if tracks are selected and no directories are */
  83 static int choose_play_sensitive(void attribute((unused)) *extra) {
  84   int files = 0;
  85
  86   gtk_tree_selection_selected_foreach(choose_selection,
  87                                       choose_play_sensitive_callback,
  88                                       &files);
  89   return files > 0;
  90 }
  91
  92 static void choose_gather_selected_files_callback(GtkTreeModel attribute((unused)) *model,
  93                                                   GtkTreePath attribute((unused)) *path,
  94                                                   GtkTreeIter *iter,
  95                                                   gpointer data) {
  96   struct vector *v = data;
  97
  98   if(choose_is_file(iter))
  99     vector_append(v, choose_get_track(iter));
 100 }
 101
 102 static void choose_gather_selected_dirs_callback(GtkTreeModel attribute((unused)) *model,
 103                                                  GtkTreePath attribute((unused)) *path,
 104                                                  GtkTreeIter *iter,
 105                                                  gpointer data) {
 106   struct vector *v = data;
 107
 108   if(choose_is_dir(iter))
 109     vector_append(v, choose_get_track(iter));
 110 }
 111
 112
 113 static void choose_play_activate(GtkMenuItem attribute((unused)) *item,
 114                                  gpointer attribute((unused)) userdata) {
 115   struct vector v[1];
 116   vector_init(v);
 117   gtk_tree_selection_selected_foreach(choose_selection,
 118                                       choose_gather_selected_files_callback,
 119                                       v);
 120   for(int n = 0; n < v->nvec; ++n)
 121     disorder_eclient_play(client, choose_play_completed, v->vec[n], 0);
 122 }
 123
 124 static int choose_properties_sensitive(void *extra) {
 125   return choose_play_sensitive(extra);
 126 }
 127
 128 static void choose_properties_activate(GtkMenuItem attribute((unused)) *item,
 129                                        gpointer attribute((unused)) userdata) {
 130   struct vector v[1];
 131   vector_init(v);
 132   gtk_tree_selection_selected_foreach(choose_selection,
 133                                       choose_gather_selected_files_callback,
 134                                       v);
 135   properties(v->nvec, (const char **)v->vec, toplevel);
 136 }
 137
 138 /** @brief Set sensitivity for select children
 139  *
 140  * Sensitive if we've selected exactly one directory.
 141  */
 142 static int choose_selectchildren_sensitive(void attribute((unused)) *extra) {
 143   struct vector v[1];
 144   /* Only one thing should be selected */
 145   if(gtk_tree_selection_count_selected_rows(choose_selection) != 1)
 146     return FALSE;
 147   /* The selected thing should be a directory */
 148   vector_init(v);
 149   gtk_tree_selection_selected_foreach(choose_selection,
 150                                       choose_gather_selected_dirs_callback,
 151                                       v);
 152   return v->nvec == 1;
 153 }
 154
 155 /** @brief Actually select the children of path
 156  *
 157  * We deselect everything else, too.
 158  */
 159 static void choose_select_children(GtkTreePath *path) {
 160   GtkTreeIter iter[1], child[1];
 161
 162   if(gtk_tree_model_get_iter(GTK_TREE_MODEL(choose_store), iter, path)) {
 163     gtk_tree_selection_unselect_all(choose_selection);
 164     for(int n = 0;
 165         gtk_tree_model_iter_nth_child(GTK_TREE_MODEL(choose_store), child,
 166                                       iter, n);
 167         ++n) {
 168       if(choose_is_file(child))
 169         gtk_tree_selection_select_iter(choose_selection, child);
 170     }
 171   }
 172 }
 173
 174 /** @brief Called to expand the children of path/iter */
 175 static void choose_selectchildren_callback(GtkTreeModel attribute((unused)) *model,
 176                                            GtkTreePath *path,
 177                                            GtkTreeIter attribute((unused)) *iter,
 178                                            gpointer attribute((unused)) data) {
 179   if(gtk_tree_view_row_expanded(GTK_TREE_VIEW(choose_view), path)) {
 180     /* Directory is already expanded */
 181     choose_select_children(path);
 182   } else {
 183     /* Directory is not expanded, so expand it */
 184     gtk_tree_view_expand_row(GTK_TREE_VIEW(choose_view), path, FALSE/*!expand_all*/);
 185     /* Select its children when it's done */
 186     if(choose_eventually_select_children)
 187       gtk_tree_path_free(choose_eventually_select_children);
 188     choose_eventually_select_children = gtk_tree_path_copy(path);
 189   }
 190 }
 191
 192 /** @brief Called when all pending track fetches are finished
 193  *
 194  * If there's a pending select-children operation, it can now be actioned
 195  * (or might have gone stale).
 196  */
 197 void choose_menu_moretracks(const char attribute((unused)) *event,
 198                             void attribute((unused)) *eventdata,
 199                             void attribute((unused)) *callbackdata) {
 200   if(choose_eventually_select_children) {
 201     choose_select_children(choose_eventually_select_children);
 202     gtk_tree_path_free(choose_eventually_select_children);
 203     choose_eventually_select_children = 0;
 204   }
 205 }
 206
 207 /** @brief Select all children
 208  *
 209  * Easy enough if the directory is already expanded, we can just select its
 210  * children.  However if it is not then we must expand it and _when this has
 211  * completed_ select its children.
 212  *
 213  * The way this is implented could cope with multiple directories but
 214  * choose_selectchildren_sensitive() should stop this.
 215  */
 216 static void choose_selectchildren_activate
 217     (GtkMenuItem attribute((unused)) *item,
 218      gpointer attribute((unused)) userdata) {
 219   gtk_tree_selection_selected_foreach(choose_selection,
 220                                       choose_selectchildren_callback,
 221                                       0);
 222 }
 223
 224 /** @brief Play all children */
 225 static void choose_playchildren_activate
 226     (GtkMenuItem attribute((unused)) *item,
 227      gpointer attribute((unused)) userdata) {
 228   /* Only one thing is selected */
 229   gtk_tree_selection_selected_foreach(choose_selection,
 230                                       choose_playchildren_callback,
 231                                       0);
 232 }
 233
 234 static void choose_playchildren_callback(GtkTreeModel attribute((unused)) *model,
 235                                          GtkTreePath *path,
 236                                          GtkTreeIter *iter,
 237                                          gpointer attribute((unused)) data) {
 238   /* Find the children and play them */
 239   disorder_eclient_files(client, choose_playchildren_received,
 240                          choose_get_track(iter),
 241                          NULL/*re*/,
 242                          NULL);
 243   /* Expand the node */
 244   gtk_tree_view_expand_row(GTK_TREE_VIEW(choose_view), path, FALSE);
 245 }
 246
 247 static void choose_playchildren_received(void attribute((unused)) *v,
 248                                          const char *err,
 249                                          int nvec, char **vec) {
 250   if(err) {
 251     popup_protocol_error(0, err);
 252     return;
 253   }
 254   for(int n = 0; n < nvec; ++n)
 255     disorder_eclient_play(client, choose_playchildren_played, vec[n], NULL);
 256 }
 257
 258 static void choose_playchildren_played(void attribute((unused)) *v,
 259                                        const char *err,
 260                                        const char attribute((unused)) *id) {
 261   if(err) {
 262     popup_protocol_error(0, err);
 263     return;
 264   }
 265 }
 266
 267 /** @brief Pop-up menu for choose */
 268 static struct menuitem choose_menuitems[] = {
 269   {
 270     "Play track",
 271     GTK_STOCK_MEDIA_PLAY,
 272     choose_play_activate,
 273     choose_play_sensitive,
 274     0,
 275     0
 276   },
 277   {
 278     "Track properties",
 279     GTK_STOCK_PROPERTIES,
 280     choose_properties_activate,
 281     choose_properties_sensitive,
 282     0,
 283     0
 284   },
 285   {
 286     "Select children",
 287     NULL,
 288     choose_selectchildren_activate,
 289     choose_selectchildren_sensitive,
 290     0,
 291     0
 292   },
 293   {
 294     "Play children",
 295     NULL,
 296     choose_playchildren_activate,
 297     choose_selectchildren_sensitive,    /* re-use */
 298     0,
 299     0
 300   },
 301   {
 302     "Deselect all tracks",
 303     NULL,
 304     choose_selectnone_activate,
 305     choose_selectnone_sensitive,
 306     0,
 307     0
 308   },
 309 };
 310
 311 const struct tabtype choose_tabtype = {
 312   choose_properties_sensitive,
 313   choose_selectall_sensitive,
 314   choose_selectnone_sensitive,
 315   choose_properties_activate,
 316   choose_selectall_activate,
 317   choose_selectnone_activate,
 318   0,
 319   0
 320 };
 321
 322 /** @brief Called when a mouse button is pressed or released */
 323 gboolean choose_button_event(GtkWidget attribute((unused)) *widget,
 324                              GdkEventButton *event,
 325                              gpointer attribute((unused)) user_data) {
 326   if(event->type == GDK_BUTTON_RELEASE && event->button == 2) {
 327     /* Middle click release - play track */
 328     ensure_selected(GTK_TREE_VIEW(choose_view), event);
 329     choose_play_activate(NULL, NULL);
 330   } else if(event->type == GDK_BUTTON_PRESS && event->button == 3) {
 331     /* Right click press - pop up the menu */
 332     ensure_selected(GTK_TREE_VIEW(choose_view), event);
 333     popup(&choose_menu, event,
 334           choose_menuitems, sizeof choose_menuitems / sizeof *choose_menuitems,
 335           0);
 336     return TRUE;
 337   }
 338   return FALSE;
 339 }
 340
 341 /*
 342 Local Variables:
 343 c-basic-offset:2
 344 comment-column:40
 345 fill-column:79
 346 indent-tabs-mode:nil
 347 End:
 348 */