Commit | Line | Data |
---|---|---|
460b9539 | 1 | /* |
2 | * This file is part of DisOrder | |
ebcfbfef | 3 | * Copyright (C) 2008 Richard Kettlewell |
460b9539 | 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 | */ | |
b9bdafc7 RK |
20 | /** @file disobedience/choose.c |
21 | * @brief Hierarchical track selection and search | |
22 | * | |
ebcfbfef RK |
23 | * We now use an ordinary GtkTreeStore/GtkTreeView. |
24 | * | |
25 | * We have an extra column with per-row data. This isn't referenced from | |
26 | * anywhere the GC can see so explicit memory management is required. | |
27 | * (TODO perhaps we could fix this using a gobject?) | |
28 | * | |
29 | * We don't want to pull the entire tree in memory, but we want directories to | |
30 | * show up as having children. Therefore we give directories a placeholder | |
31 | * child and replace their children when they are opened. Placeholders have a | |
32 | * null choosedata pointer. | |
33 | * | |
34 | * TODO We do a period sweep which kills contracted nodes, putting back | |
35 | * placeholders, and updating expanded nodes to keep up with server-side | |
36 | * changes. (We could trigger the latter off rescan complete notifications?) | |
37 | * | |
38 | * TODO: | |
39 | * - sweep up contracted nodes | |
40 | * - update when content may have changed (e.g. after a rescan) | |
b9bdafc7 | 41 | */ |
460b9539 | 42 | |
43 | #include "disobedience.h" | |
6982880f | 44 | #include "choose.h" |
16e145a5 | 45 | |
ebcfbfef | 46 | /** @brief The current selection tree */ |
6982880f | 47 | GtkTreeStore *choose_store; |
16e145a5 | 48 | |
ebcfbfef | 49 | /** @brief The view onto the selection tree */ |
6982880f | 50 | GtkWidget *choose_view; |
16e145a5 | 51 | |
ebcfbfef | 52 | /** @brief The selection tree's selection */ |
6982880f | 53 | GtkTreeSelection *choose_selection; |
460b9539 | 54 | |
ebcfbfef RK |
55 | /** @brief Map choosedata types to names */ |
56 | static const char *const choose_type_map[] = { "track", "dir" }; | |
460b9539 | 57 | |
ebcfbfef | 58 | /** @brief Return the choosedata given an interator */ |
6982880f | 59 | struct choosedata *choose_iter_to_data(GtkTreeIter *iter) { |
ebcfbfef RK |
60 | GValue v[1]; |
61 | memset(v, 0, sizeof v); | |
62 | gtk_tree_model_get_value(GTK_TREE_MODEL(choose_store), iter, CHOOSEDATA_COLUMN, v); | |
63 | assert(G_VALUE_TYPE(v) == G_TYPE_POINTER); | |
64 | struct choosedata *const cd = g_value_get_pointer(v); | |
65 | g_value_unset(v); | |
66 | return cd; | |
6a06a735 RK |
67 | } |
68 | ||
e8a26cdd RK |
69 | struct choosedata *choose_path_to_data(GtkTreePath *path) { |
70 | GtkTreeIter it[1]; | |
71 | gboolean itv = gtk_tree_model_get_iter(GTK_TREE_MODEL(choose_store), | |
72 | it, path); | |
73 | assert(itv); | |
74 | return choose_iter_to_data(it); | |
75 | } | |
76 | ||
ebcfbfef RK |
77 | /** @brief Remove node @p it and all its children |
78 | * @param Iterator, updated to point to next | |
79 | * @return True if iterator remains valid | |
16e145a5 | 80 | */ |
ebcfbfef RK |
81 | static gboolean choose_remove_node(GtkTreeIter *it) { |
82 | GtkTreeIter child[1]; | |
83 | gboolean childv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store), | |
84 | child, | |
85 | it); | |
86 | while(childv) | |
87 | childv = choose_remove_node(child); | |
88 | struct choosedata *cd = choose_iter_to_data(it); | |
89 | if(cd) { | |
90 | g_free(cd->track); | |
91 | g_free(cd->sort); | |
92 | g_free(cd); | |
93 | } | |
94 | return gtk_tree_store_remove(choose_store, it); | |
95 | } | |
96 | ||
ad47bd4c RK |
97 | /** @brief Update length and state fields */ |
98 | static gboolean choose_set_state_callback(GtkTreeModel attribute((unused)) *model, | |
99 | GtkTreePath attribute((unused)) *path, | |
100 | GtkTreeIter *it, | |
101 | gpointer attribute((unused)) data) { | |
102 | struct choosedata *cd = choose_iter_to_data(it); | |
103 | if(!cd) | |
104 | return FALSE; /* Skip placeholders*/ | |
105 | if(cd->type == CHOOSE_FILE) { | |
106 | const long l = namepart_length(cd->track); | |
107 | char length[64]; | |
108 | if(l > 0) | |
109 | byte_snprintf(length, sizeof length, "%ld:%02ld", l / 60, l % 60); | |
110 | else | |
111 | length[0] = 0; | |
112 | gtk_tree_store_set(choose_store, it, | |
113 | LENGTH_COLUMN, length, | |
114 | STATE_COLUMN, queued(cd->track), | |
115 | -1); | |
116 | } | |
117 | return FALSE; /* continue walking */ | |
118 | } | |
119 | ||
120 | /** @brief Called when the queue or playing track change */ | |
121 | static void choose_set_state(const char attribute((unused)) *event, | |
122 | void attribute((unused)) *eventdata, | |
123 | void attribute((unused)) *callbackdata) { | |
124 | gtk_tree_model_foreach(GTK_TREE_MODEL(choose_store), | |
125 | choose_set_state_callback, | |
126 | NULL); | |
127 | } | |
128 | ||
ebcfbfef RK |
129 | /** @brief (Re-)populate a node |
130 | * @param parent_ref Node to populate or NULL to fill root | |
131 | * @param nvec Number of children to add | |
132 | * @param vec Children | |
133 | * @param dirs True if children are directories | |
b9bdafc7 | 134 | * |
ebcfbfef RK |
135 | * Adjusts the set of files (or directories) below @p parent_ref to match those |
136 | * listed in @p nvec and @p vec. | |
fcc8b9f7 | 137 | * |
ebcfbfef | 138 | * @parent_ref will be destroyed. |
fcc8b9f7 | 139 | */ |
ebcfbfef RK |
140 | static void choose_populate(GtkTreeRowReference *parent_ref, |
141 | int nvec, char **vec, | |
142 | int type) { | |
143 | /* Compute parent_* */ | |
144 | GtkTreeIter pit[1], *parent_it; | |
145 | GtkTreePath *parent_path; | |
146 | if(parent_ref) { | |
147 | parent_path = gtk_tree_row_reference_get_path(parent_ref); | |
148 | parent_it = pit; | |
149 | gboolean pitv = gtk_tree_model_get_iter(GTK_TREE_MODEL(choose_store), | |
150 | pit, parent_path); | |
151 | assert(pitv); | |
152 | /*fprintf(stderr, "choose_populate %s: parent path is [%s]\n", | |
153 | choose_type_map[type], | |
154 | gtk_tree_path_to_string(parent_path));*/ | |
460b9539 | 155 | } else { |
ebcfbfef RK |
156 | parent_path = 0; |
157 | parent_it = 0; | |
158 | /*fprintf(stderr, "choose_populate %s: populating the root\n", | |
159 | choose_type_map[type]);*/ | |
160 | } | |
161 | /* Remove unwanted nodes and find out which we must add */ | |
162 | //fprintf(stderr, " trimming unwanted %s nodes\n", choose_type_map[type]); | |
163 | char *found = xmalloc(nvec); | |
164 | GtkTreeIter it[1]; | |
165 | gboolean itv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store), | |
166 | it, | |
167 | parent_it); | |
168 | while(itv) { | |
169 | struct choosedata *cd = choose_iter_to_data(it); | |
170 | int keep; | |
171 | ||
172 | if(!cd) { | |
173 | /* Always kill placeholders */ | |
174 | //fprintf(stderr, " kill a placeholder\n"); | |
175 | keep = 0; | |
176 | } else if(cd->type == type) { | |
177 | /* This is the type we care about */ | |
178 | //fprintf(stderr, " %s is a %s\n", cd->track, choose_type_map[cd->type]); | |
179 | int n; | |
180 | for(n = 0; n < nvec && strcmp(vec[n], cd->track); ++n) | |
181 | ; | |
182 | if(n < nvec) { | |
183 | //fprintf(stderr, " ... and survives\n"); | |
184 | found[n] = 1; | |
185 | keep = 1; | |
186 | } else { | |
187 | //fprintf(stderr, " ... and is to be removed\n"); | |
188 | keep = 0; | |
c3df9503 | 189 | } |
6a06a735 | 190 | } else { |
ebcfbfef RK |
191 | /* Keep wrong-type entries */ |
192 | //fprintf(stderr, " %s is a %s\n", cd->track, choose_type_map[cd->type]); | |
193 | keep = 1; | |
460b9539 | 194 | } |
ebcfbfef RK |
195 | if(keep) |
196 | itv = gtk_tree_model_iter_next(GTK_TREE_MODEL(choose_store), it); | |
197 | else | |
198 | itv = choose_remove_node(it); | |
199 | } | |
200 | /* Add nodes we don't have */ | |
201 | int inserted = 0; | |
202 | //fprintf(stderr, " inserting new %s nodes\n", choose_type_map[type]); | |
203 | for(int n = 0; n < nvec; ++n) { | |
204 | if(!found[n]) { | |
205 | //fprintf(stderr, " %s was not found\n", vec[n]); | |
206 | struct choosedata *cd = g_malloc0(sizeof *cd); | |
207 | cd->type = type; | |
208 | cd->track = g_strdup(vec[n]); | |
209 | cd->sort = g_strdup(trackname_transform(choose_type_map[type], | |
210 | vec[n], | |
211 | "sort")); | |
212 | gtk_tree_store_append(choose_store, it, parent_it); | |
213 | gtk_tree_store_set(choose_store, it, | |
214 | NAME_COLUMN, trackname_transform(choose_type_map[type], | |
215 | vec[n], | |
216 | "display"), | |
217 | CHOOSEDATA_COLUMN, cd, | |
218 | -1); | |
ad47bd4c RK |
219 | /* Update length and state; we expect this to kick off length lookups |
220 | * rather than necessarily get the right value the first time round. */ | |
221 | choose_set_state_callback(0, 0, it, 0); | |
ebcfbfef RK |
222 | ++inserted; |
223 | /* If we inserted a directory, insert a placeholder too, so it appears to | |
224 | * have children; it will be deleted when we expand the directory. */ | |
225 | if(type == CHOOSE_DIRECTORY) { | |
226 | //fprintf(stderr, " inserting a placeholder\n"); | |
227 | GtkTreeIter placeholder[1]; | |
228 | ||
229 | gtk_tree_store_append(choose_store, placeholder, it); | |
230 | gtk_tree_store_set(choose_store, placeholder, | |
231 | NAME_COLUMN, "Waddling...", | |
232 | CHOOSEDATA_COLUMN, (void *)0, | |
233 | -1); | |
e9b70a84 | 234 | } |
460b9539 | 235 | } |
460b9539 | 236 | } |
ebcfbfef RK |
237 | //fprintf(stderr, " %d nodes inserted\n", inserted); |
238 | if(inserted) { | |
239 | /* TODO sort the children */ | |
33288048 | 240 | } |
ebcfbfef RK |
241 | if(parent_ref) { |
242 | /* If we deleted a placeholder then we must re-expand the row */ | |
243 | gtk_tree_view_expand_row(GTK_TREE_VIEW(choose_view), parent_path, FALSE); | |
244 | gtk_tree_row_reference_free(parent_ref); | |
245 | gtk_tree_path_free(parent_path); | |
460b9539 | 246 | } |
460b9539 | 247 | } |
248 | ||
ebcfbfef RK |
249 | static void choose_dirs_completed(void *v, |
250 | const char *error, | |
251 | int nvec, char **vec) { | |
252 | if(error) { | |
253 | popup_protocol_error(0, error); | |
254 | return; | |
460b9539 | 255 | } |
ebcfbfef | 256 | choose_populate(v, nvec, vec, CHOOSE_DIRECTORY); |
460b9539 | 257 | } |
258 | ||
ebcfbfef RK |
259 | static void choose_files_completed(void *v, |
260 | const char *error, | |
261 | int nvec, char **vec) { | |
262 | if(error) { | |
53fa91bb | 263 | popup_protocol_error(0, error); |
ebcfbfef | 264 | return; |
460b9539 | 265 | } |
ebcfbfef | 266 | choose_populate(v, nvec, vec, CHOOSE_FILE); |
460b9539 | 267 | } |
268 | ||
ebcfbfef RK |
269 | static void choose_row_expanded(GtkTreeView attribute((unused)) *treeview, |
270 | GtkTreeIter *iter, | |
271 | GtkTreePath *path, | |
460b9539 | 272 | gpointer attribute((unused)) user_data) { |
ebcfbfef RK |
273 | /*fprintf(stderr, "row-expanded path=[%s]\n", |
274 | gtk_tree_path_to_string(path));*/ | |
275 | /* We update a node's contents whenever it is expanded, even if it was | |
276 | * already populated; the effect is that contracting and expanding a node | |
277 | * suffices to update it to the latest state on the server. */ | |
278 | struct choosedata *cd = choose_iter_to_data(iter); | |
279 | disorder_eclient_files(client, choose_files_completed, | |
280 | xstrdup(cd->track), | |
281 | NULL, | |
282 | gtk_tree_row_reference_new(GTK_TREE_MODEL(choose_store), | |
283 | path)); | |
284 | disorder_eclient_dirs(client, choose_dirs_completed, | |
285 | xstrdup(cd->track), | |
286 | NULL, | |
287 | gtk_tree_row_reference_new(GTK_TREE_MODEL(choose_store), | |
288 | path)); | |
289 | /* The row references are destroyed in the _completed handlers. */ | |
290 | } | |
291 | ||
ebcfbfef | 292 | /** @brief Create the choose tab */ |
460b9539 | 293 | GtkWidget *choose_widget(void) { |
ebcfbfef RK |
294 | /* Create the tree store. */ |
295 | choose_store = gtk_tree_store_new(1 + CHOOSEDATA_COLUMN, | |
ad47bd4c RK |
296 | G_TYPE_BOOLEAN, |
297 | G_TYPE_STRING, | |
ebcfbfef RK |
298 | G_TYPE_STRING, |
299 | G_TYPE_POINTER); | |
300 | ||
301 | /* Create the view */ | |
302 | choose_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(choose_store)); | |
ad47bd4c | 303 | gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(choose_view), TRUE); |
ebcfbfef RK |
304 | |
305 | /* Create cell renderers and columns */ | |
ad47bd4c RK |
306 | /* TODO use a table */ |
307 | { | |
308 | GtkCellRenderer *r = gtk_cell_renderer_text_new(); | |
309 | GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes | |
310 | ("Track", | |
311 | r, | |
312 | "text", NAME_COLUMN, | |
313 | (char *)0); | |
314 | gtk_tree_view_column_set_resizable(c, TRUE); | |
315 | gtk_tree_view_column_set_reorderable(c, TRUE); | |
316 | g_object_set(c, "expand", TRUE, (char *)0); | |
317 | gtk_tree_view_append_column(GTK_TREE_VIEW(choose_view), c); | |
318 | } | |
319 | { | |
320 | GtkCellRenderer *r = gtk_cell_renderer_text_new(); | |
321 | GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes | |
322 | ("Length", | |
323 | r, | |
324 | "text", LENGTH_COLUMN, | |
325 | (char *)0); | |
326 | gtk_tree_view_column_set_resizable(c, TRUE); | |
327 | gtk_tree_view_column_set_reorderable(c, TRUE); | |
328 | gtk_tree_view_append_column(GTK_TREE_VIEW(choose_view), c); | |
329 | } | |
330 | { | |
331 | GtkCellRenderer *r = gtk_cell_renderer_toggle_new(); | |
332 | GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes | |
333 | ("Queued", | |
334 | r, | |
335 | "active", STATE_COLUMN, | |
336 | (char *)0); | |
337 | gtk_tree_view_column_set_resizable(c, TRUE); | |
338 | gtk_tree_view_column_set_reorderable(c, TRUE); | |
339 | gtk_tree_view_append_column(GTK_TREE_VIEW(choose_view), c); | |
340 | /* TODO make checkbox clickable to queue the track */ | |
341 | } | |
460b9539 | 342 | |
ebcfbfef RK |
343 | /* The selection should support multiple things being selected */ |
344 | choose_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(choose_view)); | |
345 | gtk_tree_selection_set_mode(choose_selection, GTK_SELECTION_MULTIPLE); | |
346 | ||
347 | /* Catch button presses */ | |
6982880f RK |
348 | g_signal_connect(choose_view, "button-press-event", |
349 | G_CALLBACK(choose_button_event), 0); | |
350 | g_signal_connect(choose_view, "button-release-event", | |
351 | G_CALLBACK(choose_button_event), 0); | |
ebcfbfef RK |
352 | /* Catch row expansions so we can fill in placeholders */ |
353 | g_signal_connect(choose_view, "row-expanded", | |
354 | G_CALLBACK(choose_row_expanded), 0); | |
ad47bd4c RK |
355 | |
356 | event_register("queue-list-changed", choose_set_state, 0); | |
357 | event_register("playing-track-changed", choose_set_state, 0); | |
460b9539 | 358 | |
ebcfbfef RK |
359 | /* Fill the root */ |
360 | disorder_eclient_files(client, choose_files_completed, "", NULL, NULL); | |
361 | disorder_eclient_dirs(client, choose_dirs_completed, "", NULL, NULL); | |
362 | ||
363 | /* Make the widget scrollable */ | |
364 | GtkWidget *scrolled = scroll_widget(choose_view); | |
365 | g_object_set_data(G_OBJECT(scrolled), "type", (void *)&choose_tabtype); | |
366 | return scrolled; | |
460b9539 | 367 | } |
368 | ||
369 | /* | |
370 | Local Variables: | |
371 | c-basic-offset:2 | |
372 | comment-column:40 | |
373 | fill-column:79 | |
374 | indent-tabs-mode:nil | |
375 | End: | |
376 | */ |