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

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2006-2008 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 #include "disobedience.h"
  21 #include "queue-generic.h"
  22
  23 /* Select All */
  24
  25 int ql_selectall_sensitive(struct queuelike *ql) {
  26   return !!ql->q;
  27 }
  28
  29 void ql_selectall_activate(GtkMenuItem attribute((unused)) *menuitem,
  30                            gpointer user_data) {
  31   struct queuelike *ql = user_data;
  32
  33   gtk_tree_selection_select_all(ql->selection);
  34 }
  35
  36 /* Select None */
  37
  38 int ql_selectnone_sensitive(struct queuelike *ql) {
  39   return gtk_tree_selection_count_selected_rows(ql->selection) > 0;
  40 }
  41
  42 void ql_selectnone_activate(GtkMenuItem attribute((unused)) *menuitem,
  43                             gpointer user_data) {
  44   struct queuelike *ql = user_data;
  45
  46   gtk_tree_selection_unselect_all(ql->selection);
  47 }
  48
  49 /* Properties */
  50
  51 int ql_properties_sensitive(struct queuelike *ql) {
  52   return gtk_tree_selection_count_selected_rows(ql->selection) > 0;
  53 }
  54
  55 void ql_properties_activate(GtkMenuItem attribute((unused)) *menuitem,
  56                             gpointer user_data) {
  57   struct queuelike *ql = user_data;
  58   struct vector v[1];
  59   GtkTreeIter iter[1];
  60
  61   vector_init(v);
  62   gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store), iter);
  63   for(struct queue_entry *q = ql->q; q; q = q->next) {
  64     if(gtk_tree_selection_iter_is_selected(ql->selection, iter))
  65       vector_append(v, (char *)q->track);
  66     gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
  67   }
  68   if(v->nvec)
  69     properties(v->nvec, (const char **)v->vec);
  70 }
  71
  72 /* Scratch */
  73
  74 int ql_scratch_sensitive(struct queuelike attribute((unused)) *ql) {
  75   return !!playing_track;
  76 }
  77
  78 void ql_scratch_activate(GtkMenuItem attribute((unused)) *menuitem,
  79                          gpointer attribute((unused)) user_data) {
  80   /* TODO */
  81 }
  82
  83 /* Remove */
  84
  85 static void remove_sensitive_callback(GtkTreeModel *model,
  86                                       GtkTreePath attribute((unused)) *path,
  87                                       GtkTreeIter *iter,
  88                                       gpointer data) {
  89   struct queuelike *ql = g_object_get_data(G_OBJECT(model), "ql");
  90   struct queue_entry *q = ql_iter_to_q(ql, iter);
  91   const int removable = (q != playing_track
  92                          && right_removable(last_rights, config->username, q));
  93   int *const counts = data;
  94   ++counts[removable];
  95 }
  96
  97 int ql_remove_sensitive(struct queuelike *ql) {
  98   int counts[2] = { 0, 0 };
  99   gtk_tree_selection_selected_foreach(ql->selection,
 100                                       remove_sensitive_callback,
 101                                       counts);
 102   /* Remove will work if we have at least some removable tracks selected, and
 103    * no unremovable ones */
 104   return counts[1] > 0 && counts[0] == 0;
 105 }
 106
 107 static void remove_completed(void attribute((unused)) *v, const char *error) {
 108   if(error)
 109     popup_protocol_error(0, error);
 110 }
 111
 112 static void remove_activate_callback(GtkTreeModel *model,
 113                                      GtkTreePath attribute((unused)) *path,
 114                                      GtkTreeIter *iter,
 115                                      gpointer attribute((unused)) data) {
 116   struct queuelike *ql = g_object_get_data(G_OBJECT(model), "ql");
 117   struct queue_entry *q = ql_iter_to_q(ql, iter);
 118
 119   disorder_eclient_remove(client, q->id, remove_completed, q);
 120 }
 121
 122 void ql_remove_activate(GtkMenuItem attribute((unused)) *menuitem,
 123                         gpointer user_data) {
 124   struct queuelike *ql = user_data;
 125   gtk_tree_selection_selected_foreach(ql->selection,
 126                                       remove_activate_callback,
 127                                       0);
 128 }
 129
 130 /* Play */
 131
 132 int ql_play_sensitive(struct queuelike *ql) {
 133   return gtk_tree_selection_count_selected_rows(ql->selection) > 0;
 134 }
 135
 136 void ql_play_activate(GtkMenuItem attribute((unused)) *menuitem,
 137                          gpointer attribute((unused)) user_data) {
 138   /* TODO */
 139 }
 140
 141
 142 /** @brief Create @c ql->menu if it does not already exist */
 143 static void ql_create_menu(struct queuelike *ql) {
 144   if(ql->menu)
 145     return;
 146   ql->menu = gtk_menu_new();
 147   g_signal_connect(ql->menu, "destroy",
 148                    G_CALLBACK(gtk_widget_destroyed), &ql->menu);
 149   for(int n = 0; n < ql->nmenuitems; ++n) {
 150     ql->menuitems[n].w = gtk_menu_item_new_with_label(ql->menuitems[n].name);
 151     gtk_menu_attach(GTK_MENU(ql->menu), ql->menuitems[n].w, 0, 1, n, n + 1);
 152   }
 153   set_tool_colors(ql->menu);
 154 }
 155
 156 /** @brief Configure @c ql->menu */
 157 static void ql_configure_menu(struct queuelike *ql) {
 158   /* Set the sensitivity of each menu item and (re-)establish the signal
 159    * handlers */
 160   for(int n = 0; n < ql->nmenuitems; ++n) {
 161     if(ql->menuitems[n].handlerid)
 162       g_signal_handler_disconnect(ql->menuitems[n].w,
 163                                   ql->menuitems[n].handlerid);
 164     gtk_widget_set_sensitive(ql->menuitems[n].w,
 165                              ql->menuitems[n].sensitive(ql));
 166     ql->menuitems[n].handlerid = g_signal_connect
 167       (ql->menuitems[n].w, "activate",
 168        G_CALLBACK(ql->menuitems[n].activate), ql);
 169   }
 170 }
 171
 172 /** @brief Called when a button is released over a queuelike */
 173 gboolean ql_button_release(GtkWidget*widget,
 174                            GdkEventButton *event,
 175                            gpointer user_data) {
 176   struct queuelike *ql = user_data;
 177
 178   if(event->type == GDK_BUTTON_PRESS
 179      && event->button == 3) {
 180     /* Right button click. */
 181     if(gtk_tree_selection_count_selected_rows(ql->selection) == 0) {
 182       /* Nothing is selected, select whatever is under the pointer */
 183       GtkTreePath *path;
 184       if(gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget),
 185                                        event->x, event->y,
 186                                        &path,
 187                                        NULL,
 188                                        NULL, NULL))
 189         gtk_tree_selection_select_path(ql->selection, path);
 190     }
 191     ql_create_menu(ql);
 192     ql_configure_menu(ql);
 193     gtk_widget_show_all(ql->menu);
 194     gtk_menu_popup(GTK_MENU(ql->menu), 0, 0, 0, 0,
 195                    event->button, event->time);
 196     return TRUE;                        /* hide the click from other widgets */
 197   }
 198
 199   return FALSE;
 200 }
 201
 202 static int ql_tab_selectall_sensitive(void *extra) {
 203   return ql_selectall_sensitive(extra);
 204 }
 205
 206 static void ql_tab_selectall_activate(void *extra) {
 207   ql_selectall_activate(NULL, extra);
 208 }
 209
 210 static int ql_tab_selectnone_sensitive(void *extra) {
 211   return ql_selectnone_sensitive(extra);
 212 }
 213
 214 static void ql_tab_selectnone_activate(void *extra) {
 215   ql_selectnone_activate(NULL, extra);
 216 }
 217
 218 static int ql_tab_properties_sensitive(void *extra) {
 219   return ql_properties_sensitive(extra);
 220 }
 221
 222 static void ql_tab_properties_activate(void *extra) {
 223   ql_properties_activate(NULL, extra);
 224 }
 225
 226 struct tabtype *ql_tabtype(struct queuelike *ql) {
 227   static const struct tabtype ql_tabtype = {
 228     ql_tab_properties_sensitive,
 229     ql_tab_selectall_sensitive,
 230     ql_tab_selectnone_sensitive,
 231     ql_tab_properties_activate,
 232     ql_tab_selectall_activate,
 233     ql_tab_selectnone_activate,
 234     0,
 235     0
 236   };
 237
 238   struct tabtype *t = xmalloc(sizeof *t);
 239   *t = ql_tabtype;
 240   t->extra = ql;
 241   return t;
 242 }
 243
 244 /*
 245 Local Variables:
 246 c-basic-offset:2
 247 comment-column:40
 248 fill-column:79
 249 indent-tabs-mode:nil
 250 End:
 251 */