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