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[disorder] / 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 /** @brief Popup menu */
26 static GtkWidget *choose_menu;
27
28 /** @brief Recursion step for choose_get_visible()
29 * @param parent A visible node, or NULL for the root
30 * @param callback Called for each visible node
31 * @param userdata Passed to @p callback
32 *
33 * If @p callback returns nonzero, the walk stops immediately.
34 */
35 static int choose_visible_recurse(GtkTreeIter *parent,
36 int (*callback)(GtkTreeIter *it,
37 int isfile,
38 void *userdata),
39 void *userdata) {
40 int expanded;
41 if(parent) {
42 /* Skip placeholders */
43 if(choose_is_placeholder(parent))
44 return 0;
45 const int isfile = choose_is_file(parent);
46 if(callback(parent, isfile, userdata))
47 return 1;
48 if(isfile)
49 return 0; /* Files never have children */
50 GtkTreePath *parent_path
51 = gtk_tree_model_get_path(GTK_TREE_MODEL(choose_store),
52 parent);
53 expanded = gtk_tree_view_row_expanded(GTK_TREE_VIEW(choose_view),
54 parent_path);
55 gtk_tree_path_free(parent_path);
56 } else
57 expanded = 1;
58 /* See if parent is expanded */
59 if(expanded) {
60 /* Parent is expanded, visit all its children */
61 GtkTreeIter it[1];
62 gboolean itv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store),
63 it,
64 parent);
65 while(itv) {
66 if(choose_visible_recurse(it, callback, userdata))
67 return TRUE;
68 itv = gtk_tree_model_iter_next(GTK_TREE_MODEL(choose_store), it);
69 }
70 }
71 return 0;
72 }
73
74 static void choose_visible_visit(int (*callback)(GtkTreeIter *it,
75 int isfile,
76 void *userdata),
77 void *userdata) {
78 choose_visible_recurse(NULL, callback, userdata);
79 }
80
81 static int choose_selectall_sensitive_callback
82 (GtkTreeIter attribute((unused)) *it,
83 int isfile,
84 void *userdata) {
85 if(isfile) {
86 *(int *)userdata = 1;
87 return 1;
88 }
89 return 0;
90 }
91
92 /** @brief Should 'select all' be sensitive?
93 *
94 * Yes if there are visible files.
95 */
96 static int choose_selectall_sensitive(void attribute((unused)) *extra) {
97 int files = 0;
98 choose_visible_visit(choose_selectall_sensitive_callback, &files);
99 return files > 0;
100 }
101
102 static int choose_selectall_activate_callback
103 (GtkTreeIter *it,
104 int isfile,
105 void attribute((unused)) *userdata) {
106 if(isfile)
107 gtk_tree_selection_select_iter(choose_selection, it);
108 else
109 gtk_tree_selection_unselect_iter(choose_selection, it);
110 return 0;
111 }
112
113 /** @brief Activate select all
114 *
115 * Selects all files and deselects everything else.
116 */
117 static void choose_selectall_activate(GtkMenuItem attribute((unused)) *item,
118 gpointer attribute((unused)) userdata) {
119 choose_visible_visit(choose_selectall_activate_callback, 0);
120 }
121
122 /** @brief Should 'select none' be sensitive
123 *
124 * Yes if anything is selected.
125 */
126 static int choose_selectnone_sensitive(void attribute((unused)) *extra) {
127 return gtk_tree_selection_count_selected_rows(choose_selection) > 0;
128 }
129
130 /** @brief Activate select none */
131 static void choose_selectnone_activate(GtkMenuItem attribute((unused)) *item,
132 gpointer attribute((unused)) userdata) {
133 gtk_tree_selection_unselect_all(choose_selection);
134 }
135
136 static void choose_play_sensitive_callback(GtkTreeModel attribute((unused)) *model,
137 GtkTreePath attribute((unused)) *path,
138 GtkTreeIter *iter,
139 gpointer data) {
140 int *filesp = data;
141
142 if(*filesp == -1)
143 return;
144 if(choose_is_dir(iter))
145 *filesp = -1;
146 else if(choose_is_file(iter))
147 ++*filesp;
148 }
149
150 /** @brief Should 'play' be sensitive?
151 *
152 * Yes if tracks are selected and no directories are */
153 static int choose_play_sensitive(void attribute((unused)) *extra) {
154 int files = 0;
155
156 gtk_tree_selection_selected_foreach(choose_selection,
157 choose_play_sensitive_callback,
158 &files);
159 return files > 0;
160 }
161
162 static void choose_gather_selected_files_callback(GtkTreeModel attribute((unused)) *model,
163 GtkTreePath attribute((unused)) *path,
164 GtkTreeIter *iter,
165 gpointer data) {
166 struct vector *v = data;
167
168 if(choose_is_file(iter))
169 vector_append(v, choose_get_track(iter));
170 }
171
172
173 static void choose_play_activate(GtkMenuItem attribute((unused)) *item,
174 gpointer attribute((unused)) userdata) {
175 struct vector v[1];
176 vector_init(v);
177 gtk_tree_selection_selected_foreach(choose_selection,
178 choose_gather_selected_files_callback,
179 v);
180 for(int n = 0; n < v->nvec; ++n)
181 disorder_eclient_play(client, v->vec[n], choose_play_completed, 0);
182 }
183
184 static int choose_properties_sensitive(void *extra) {
185 return choose_play_sensitive(extra);
186 }
187
188 static void choose_properties_activate(GtkMenuItem attribute((unused)) *item,
189 gpointer attribute((unused)) userdata) {
190 struct vector v[1];
191 vector_init(v);
192 gtk_tree_selection_selected_foreach(choose_selection,
193 choose_gather_selected_files_callback,
194 v);
195 properties(v->nvec, (const char **)v->vec);
196 }
197
198 /** @brief Pop-up menu for choose */
199 static struct menuitem choose_menuitems[] = {
200 {
201 "Play track",
202 choose_play_activate,
203 choose_play_sensitive,
204 0,
205 0
206 },
207 {
208 "Track properties",
209 choose_properties_activate,
210 choose_properties_sensitive,
211 0,
212 0
213 },
214 {
215 "Select all tracks",
216 choose_selectall_activate,
217 choose_selectall_sensitive,
218 0,
219 0
220 },
221 {
222 "Deselect all tracks",
223 choose_selectnone_activate,
224 choose_selectnone_sensitive,
225 0,
226 0
227 },
228 };
229
230 const struct tabtype choose_tabtype = {
231 choose_properties_sensitive,
232 choose_selectall_sensitive,
233 choose_selectnone_sensitive,
234 choose_properties_activate,
235 choose_selectall_activate,
236 choose_selectnone_activate,
237 0,
238 0
239 };
240
241 /** @brief Called when a mouse button is pressed or released */
242 gboolean choose_button_event(GtkWidget attribute((unused)) *widget,
243 GdkEventButton *event,
244 gpointer attribute((unused)) user_data) {
245 if(event->type == GDK_BUTTON_RELEASE && event->button == 2) {
246 /* Middle click release - play track */
247 ensure_selected(GTK_TREE_VIEW(choose_view), event);
248 choose_play_activate(NULL, NULL);
249 } else if(event->type == GDK_BUTTON_PRESS && event->button == 3) {
250 /* Right click press - pop up the menu */
251 ensure_selected(GTK_TREE_VIEW(choose_view), event);
252 popup(&choose_menu, event,
253 choose_menuitems, sizeof choose_menuitems / sizeof *choose_menuitems,
254 0);
255 return TRUE;
256 }
257 return FALSE;
258 }
259
260 /*
261 Local Variables:
262 c-basic-offset:2
263 comment-column:40
264 fill-column:79
265 indent-tabs-mode:nil
266 End:
267 */