/** @brief Popup menu */
static GtkWidget *choose_menu;
-/** @brief Recursion step for choose_get_visible()
- * @param parent A visible node, or NULL for the root
- * @param callback Called for each visible node
- * @param userdata Passed to @p callback
- *
- * If @p callback returns nonzero, the walk stops immediately.
- */
-static int choose_visible_recurse(GtkTreeIter *parent,
- int (*callback)(GtkTreeIter *it,
- int isfile,
- void *userdata),
- void *userdata) {
- int expanded;
- if(parent) {
- /* Skip placeholders */
- if(choose_is_placeholder(parent))
- return 0;
- const int isfile = choose_is_file(parent);
- if(callback(parent, isfile, userdata))
- return 1;
- if(isfile)
- return 0; /* Files never have children */
- GtkTreePath *parent_path
- = gtk_tree_model_get_path(GTK_TREE_MODEL(choose_store),
- parent);
- expanded = gtk_tree_view_row_expanded(GTK_TREE_VIEW(choose_view),
- parent_path);
- gtk_tree_path_free(parent_path);
- } else
- expanded = 1;
- /* See if parent is expanded */
- if(expanded) {
- /* Parent is expanded, visit all its children */
- GtkTreeIter it[1];
- gboolean itv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store),
- it,
- parent);
- while(itv) {
- if(choose_visible_recurse(it, callback, userdata))
- return TRUE;
- itv = gtk_tree_model_iter_next(GTK_TREE_MODEL(choose_store), it);
- }
- }
- return 0;
-}
-
-static void choose_visible_visit(int (*callback)(GtkTreeIter *it,
- int isfile,
- void *userdata),
- void *userdata) {
- choose_visible_recurse(NULL, callback, userdata);
-}
+/** @brief Path to directory pending a "select children" operation */
+static GtkTreePath *choose_eventually_select_children;
-static int choose_selectall_sensitive_callback
- (GtkTreeIter attribute((unused)) *it,
- int isfile,
- void *userdata) {
- if(isfile) {
- *(int *)userdata = 1;
- return 1;
- }
- return 0;
-}
-
-/** @brief Should 'select all' be sensitive?
- *
- * Yes if there are visible files.
- */
+/** @brief Should edit->select all be sensitive? No, for the choose tab. */
static int choose_selectall_sensitive(void attribute((unused)) *extra) {
- int files = 0;
- choose_visible_visit(choose_selectall_sensitive_callback, &files);
- return files > 0;
-}
-
-static int choose_selectall_activate_callback
- (GtkTreeIter *it,
- int isfile,
- void attribute((unused)) *userdata) {
- if(isfile)
- gtk_tree_selection_select_iter(choose_selection, it);
- else
- gtk_tree_selection_unselect_iter(choose_selection, it);
- return 0;
+ return FALSE;
}
-/** @brief Activate select all
- *
- * Selects all files and deselects everything else.
- */
+/** @brief Activate edit->select all (which should do nothing) */
static void choose_selectall_activate(GtkMenuItem attribute((unused)) *item,
gpointer attribute((unused)) userdata) {
- choose_visible_visit(choose_selectall_activate_callback, 0);
}
/** @brief Should 'select none' be sensitive
vector_append(v, choose_get_track(iter));
}
+static void choose_gather_selected_dirs_callback(GtkTreeModel attribute((unused)) *model,
+ GtkTreePath attribute((unused)) *path,
+ GtkTreeIter *iter,
+ gpointer data) {
+ struct vector *v = data;
+
+ if(choose_is_dir(iter))
+ vector_append(v, choose_get_track(iter));
+}
+
static void choose_play_activate(GtkMenuItem attribute((unused)) *item,
gpointer attribute((unused)) userdata) {
properties(v->nvec, (const char **)v->vec);
}
+/** @brief Set sensitivity for select children
+ *
+ * Sensitive if we've selected exactly one directory.
+ */
+static int choose_selectchildren_sensitive(void attribute((unused)) *extra) {
+ struct vector v[1];
+ /* Only one thing should be selected */
+ if(gtk_tree_selection_count_selected_rows(choose_selection) != 1)
+ return FALSE;
+ /* The selected thing should be a directory */
+ vector_init(v);
+ gtk_tree_selection_selected_foreach(choose_selection,
+ choose_gather_selected_dirs_callback,
+ v);
+ return v->nvec == 1;
+}
+
+/** @brief Actually select the children of path
+ *
+ * We deselect everything else, too.
+ */
+static void choose_select_children(GtkTreePath *path) {
+ GtkTreeIter iter[1], child[1];
+
+ if(gtk_tree_model_get_iter(GTK_TREE_MODEL(choose_store), iter, path)) {
+ gtk_tree_selection_unselect_all(choose_selection);
+ for(int n = 0;
+ gtk_tree_model_iter_nth_child(GTK_TREE_MODEL(choose_store), child,
+ iter, n);
+ ++n) {
+ if(choose_is_file(child))
+ gtk_tree_selection_select_iter(choose_selection, child);
+ }
+ }
+}
+
+/** @brief Called to expand the children of path/iter */
+static void choose_selectchildren_callback(GtkTreeModel attribute((unused)) *model,
+ GtkTreePath *path,
+ GtkTreeIter attribute((unused)) *iter,
+ gpointer attribute((unused)) data) {
+ if(gtk_tree_view_row_expanded(GTK_TREE_VIEW(choose_view), path)) {
+ /* Directory is already expanded */
+ choose_select_children(path);
+ } else {
+ /* Directory is not expanded, so expand it */
+ gtk_tree_view_expand_row(GTK_TREE_VIEW(choose_view), path, FALSE/*!expand_all*/);
+ /* Select its children when it's done */
+ if(choose_eventually_select_children)
+ gtk_tree_path_free(choose_eventually_select_children);
+ choose_eventually_select_children = gtk_tree_path_copy(path);
+ }
+}
+
+/** @brief Called when all pending track fetches are finished
+ *
+ * If there's a pending select-children operation, it can now be actioned
+ * (or might have gone stale).
+ */
+void choose_menu_moretracks(const char attribute((unused)) *event,
+ void attribute((unused)) *eventdata,
+ void attribute((unused)) *callbackdata) {
+ if(choose_eventually_select_children) {
+ choose_select_children(choose_eventually_select_children);
+ gtk_tree_path_free(choose_eventually_select_children);
+ choose_eventually_select_children = 0;
+ }
+}
+
+/** @brief Select all children
+ *
+ * Easy enough if the directory is already expanded, we can just select its
+ * children. However if it is not then we must expand it and _when this has
+ * completed_ select its children.
+ *
+ * The way this is implented could cope with multiple directories but
+ * choose_selectchildren_sensitive() should stop this.
+ */
+static void choose_selectchildren_activate
+ (GtkMenuItem attribute((unused)) *item,
+ gpointer attribute((unused)) userdata) {
+ gtk_tree_selection_selected_foreach(choose_selection,
+ choose_selectchildren_callback,
+ 0);
+}
+
/** @brief Pop-up menu for choose */
static struct menuitem choose_menuitems[] = {
{
0
},
{
- "Select all tracks",
- choose_selectall_activate,
- choose_selectall_sensitive,
+ "Select children",
+ choose_selectchildren_activate,
+ choose_selectchildren_sensitive,
0,
0
},