| 1 | /* |
| 2 | * This file is part of DisOrder |
| 3 | * Copyright (C) 2006, 2007 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 | /** @file disobedience/choose.c |
| 21 | * @brief Hierarchical track selection and search |
| 22 | * |
| 23 | * We don't use the built-in tree widgets because they require that you know |
| 24 | * the children of a node on demand, and we have to wait for the server to tell |
| 25 | * us. |
| 26 | */ |
| 27 | |
| 28 | #include "disobedience.h" |
| 29 | |
| 30 | /* Choose track ------------------------------------------------------------ */ |
| 31 | |
| 32 | WT(label); |
| 33 | WT(event_box); |
| 34 | WT(menu); |
| 35 | WT(menu_item); |
| 36 | WT(layout); |
| 37 | WT(vbox); |
| 38 | WT(arrow); |
| 39 | WT(hbox); |
| 40 | WT(button); |
| 41 | WT(image); |
| 42 | WT(entry); |
| 43 | |
| 44 | /* Types */ |
| 45 | |
| 46 | struct choosenode; |
| 47 | |
| 48 | /** @brief Accumulated information about the tree widget */ |
| 49 | struct displaydata { |
| 50 | /** @brief Maximum width required */ |
| 51 | guint width; |
| 52 | /** @brief Maximum height required */ |
| 53 | guint height; |
| 54 | }; |
| 55 | |
| 56 | /* instantiate the node vector type */ |
| 57 | |
| 58 | VECTOR_TYPE(nodevector, struct choosenode *, xrealloc); |
| 59 | |
| 60 | /** @brief Signature of function called when a choosenode is filled */ |
| 61 | typedef void (when_filled_callback)(struct choosenode *cn, |
| 62 | void *wfu); |
| 63 | |
| 64 | /** @brief One node in the virtual filesystem */ |
| 65 | struct choosenode { |
| 66 | struct choosenode *parent; /**< @brief parent node */ |
| 67 | const char *path; /**< @brief full path or 0 */ |
| 68 | const char *sort; /**< @brief sort key */ |
| 69 | const char *display; /**< @brief display name */ |
| 70 | int pending; /**< @brief pending resolve queries */ |
| 71 | unsigned flags; |
| 72 | #define CN_EXPANDABLE 0x0001 /**< @brief node is expandable */ |
| 73 | #define CN_EXPANDED 0x0002 /**< @brief node is expanded |
| 74 | * |
| 75 | * Expandable items are directories; |
| 76 | * non-expandable ones are files. */ |
| 77 | #define CN_DISPLAYED 0x0004 /**< @brief widget is displayed in layout */ |
| 78 | #define CN_SELECTED 0x0008 /**< @brief node is selected */ |
| 79 | #define CN_GETTING_FILES 0x0010 /**< @brief files inbound */ |
| 80 | #define CN_RESOLVING_FILES 0x0020 /**< @brief resolved files inbound */ |
| 81 | #define CN_GETTING_DIRS 0x0040 /**< @brief directories inbound */ |
| 82 | #define CN_GETTING_ANY 0x0070 /**< @brief getting something */ |
| 83 | #define CN_CONTINGENT 0x0080 /**< @brief expansion contingent on search */ |
| 84 | struct nodevector children; /**< @brief vector of children */ |
| 85 | void (*fill)(struct choosenode *); /**< @brief request child fill or 0 for leaf */ |
| 86 | GtkWidget *container; /**< @brief the container for this row */ |
| 87 | GtkWidget *hbox; /**< @brief the hbox for this row */ |
| 88 | GtkWidget *arrow; /**< @brief arrow widget or 0 */ |
| 89 | GtkWidget *label; /**< @brief text label for this node */ |
| 90 | GtkWidget *marker; /**< @brief queued marker */ |
| 91 | |
| 92 | when_filled_callback *whenfilled; /**< @brief called when filled or 0 */ |
| 93 | void *wfu; /**< @brief passed to @c whenfilled */ |
| 94 | int ymin; /**< @brief least Y value */ |
| 95 | int ymax; /**< @brief greatest Y value */ |
| 96 | }; |
| 97 | |
| 98 | /** @brief One item in the popup menu */ |
| 99 | struct choose_menuitem { |
| 100 | /* Parameters */ |
| 101 | const char *name; /**< @brief name */ |
| 102 | |
| 103 | /* Callbacks */ |
| 104 | void (*activate)(GtkMenuItem *menuitem, gpointer user_data); |
| 105 | /**< @brief Called to activate the menu item. |
| 106 | * |
| 107 | * @p user_data is the choosenode the mouse pointer is over. */ |
| 108 | |
| 109 | gboolean (*sensitive)(struct choosenode *cn); |
| 110 | /* @brief Called to determine whether the menu item should be sensitive. |
| 111 | * |
| 112 | * TODO? */ |
| 113 | |
| 114 | /* State */ |
| 115 | gulong handlerid; /**< @brief signal handler ID */ |
| 116 | GtkWidget *w; /**< @brief menu item widget */ |
| 117 | }; |
| 118 | |
| 119 | /* Variables */ |
| 120 | |
| 121 | static GtkWidget *chooselayout; |
| 122 | static GtkAdjustment *vadjust; |
| 123 | static GtkWidget *searchentry; /**< @brief search terms */ |
| 124 | static GtkWidget *nextsearch; /**< @brief next search result */ |
| 125 | static GtkWidget *prevsearch; /**< @brief previous search result */ |
| 126 | static struct choosenode *root; |
| 127 | static GtkWidget *track_menu; /**< @brief track popup menu */ |
| 128 | static GtkWidget *dir_menu; /**< @brief directory popup menu */ |
| 129 | static struct choosenode *last_click; /**< @brief last clicked node for selection */ |
| 130 | static int files_visible; /**< @brief total files visible */ |
| 131 | static int files_selected; /**< @brief total files selected */ |
| 132 | static int gets_in_flight; /**< @brief total gets in flight */ |
| 133 | static int search_in_flight; /**< @brief a search is underway */ |
| 134 | static int search_obsolete; /**< @brief the current search is void */ |
| 135 | static char **searchresults; /**< @brief search results */ |
| 136 | static int nsearchresults; /**< @brief number of results */ |
| 137 | static int nsearchvisible; /**< @brief number of search results visible */ |
| 138 | static struct hash *searchhash; /**< @brief hash of search results */ |
| 139 | static struct progress_window *spw; /**< @brief progress window */ |
| 140 | static struct choosenode **searchnodes; /**< @brief choosenodes of search results */ |
| 141 | |
| 142 | /* Forward Declarations */ |
| 143 | |
| 144 | static void clear_children(struct choosenode *cn); |
| 145 | static struct choosenode *newnode(struct choosenode *parent, |
| 146 | const char *path, |
| 147 | const char *display, |
| 148 | const char *sort, |
| 149 | unsigned flags, |
| 150 | void (*fill)(struct choosenode *)); |
| 151 | static void fill_root_node(struct choosenode *cn); |
| 152 | static void fill_directory_node(struct choosenode *cn); |
| 153 | static void got_files(void *v, int nvec, char **vec); |
| 154 | static void got_resolved_file(void *v, const char *track); |
| 155 | static void got_dirs(void *v, int nvec, char **vec); |
| 156 | |
| 157 | static void expand_node(struct choosenode *cn, int contingent); |
| 158 | static void contract_node(struct choosenode *cn); |
| 159 | static void updated_node(struct choosenode *cn, int redisplay); |
| 160 | |
| 161 | static void display_selection(struct choosenode *cn); |
| 162 | static void clear_selection(struct choosenode *cn); |
| 163 | |
| 164 | static void redisplay_tree(void); |
| 165 | static struct displaydata display_tree(struct choosenode *cn, int x, int y); |
| 166 | static void undisplay_tree(struct choosenode *cn); |
| 167 | static void initiate_search(void); |
| 168 | static void delete_widgets(struct choosenode *cn); |
| 169 | static void expand_from(struct choosenode *cn); |
| 170 | static struct choosenode *first_search_result(struct choosenode *cn); |
| 171 | |
| 172 | static void clicked_choosenode(GtkWidget attribute((unused)) *widget, |
| 173 | GdkEventButton *event, |
| 174 | gpointer user_data); |
| 175 | |
| 176 | static void activate_track_play(GtkMenuItem *menuitem, gpointer user_data); |
| 177 | static void activate_track_properties(GtkMenuItem *menuitem, gpointer user_data); |
| 178 | |
| 179 | static gboolean sensitive_track_play(struct choosenode *cn); |
| 180 | static gboolean sensitive_track_properties(struct choosenode *cn); |
| 181 | |
| 182 | static void activate_dir_play(GtkMenuItem *menuitem, gpointer user_data); |
| 183 | static void activate_dir_properties(GtkMenuItem *menuitem, gpointer user_data); |
| 184 | static void activate_dir_select(GtkMenuItem *menuitem, gpointer user_data); |
| 185 | |
| 186 | static gboolean sensitive_dir_play(struct choosenode *cn); |
| 187 | static gboolean sensitive_dir_properties(struct choosenode *cn); |
| 188 | static gboolean sensitive_dir_select(struct choosenode *cn); |
| 189 | |
| 190 | /** @brief Track menu items */ |
| 191 | static struct choose_menuitem track_menuitems[] = { |
| 192 | { "Play track", activate_track_play, sensitive_track_play, 0, 0 }, |
| 193 | { "Track properties", activate_track_properties, sensitive_track_properties, 0, 0 }, |
| 194 | { 0, 0, 0, 0, 0 } |
| 195 | }; |
| 196 | |
| 197 | /** @brief Directory menu items */ |
| 198 | static struct choose_menuitem dir_menuitems[] = { |
| 199 | { "Play all tracks", activate_dir_play, sensitive_dir_play, 0, 0 }, |
| 200 | { "Track properties", activate_dir_properties, sensitive_dir_properties, 0, 0 }, |
| 201 | { "Select all tracks", activate_dir_select, sensitive_dir_select, 0, 0 }, |
| 202 | { 0, 0, 0, 0, 0 } |
| 203 | }; |
| 204 | |
| 205 | /* Maintaining the data structure ------------------------------------------ */ |
| 206 | |
| 207 | static char *cnflags(const struct choosenode *cn) { |
| 208 | unsigned f = cn->flags, n; |
| 209 | struct dynstr d[1]; |
| 210 | |
| 211 | static const char *bits[] = { |
| 212 | "expandable", |
| 213 | "expanded", |
| 214 | "displayed", |
| 215 | "selected", |
| 216 | "getting_files", |
| 217 | "resolving_files", |
| 218 | "getting_dirs", |
| 219 | "contingent" |
| 220 | }; |
| 221 | #define NBITS (sizeof bits / sizeof *bits) |
| 222 | |
| 223 | dynstr_init(d); |
| 224 | if(!f) |
| 225 | dynstr_append(d, '0'); |
| 226 | else { |
| 227 | for(n = 0; n < NBITS; ++n) { |
| 228 | const unsigned bit = 1 << n; |
| 229 | if(f & bit) { |
| 230 | if(d->nvec) |
| 231 | dynstr_append(d, '|'); |
| 232 | dynstr_append_string(d, bits[n]); |
| 233 | f ^= bit; |
| 234 | } |
| 235 | } |
| 236 | if(f) { |
| 237 | char buf[32]; |
| 238 | if(d->nvec) |
| 239 | dynstr_append(d, '|'); |
| 240 | sprintf(buf, "%#x", f); |
| 241 | dynstr_append_string(d, buf); |
| 242 | } |
| 243 | } |
| 244 | dynstr_terminate(d); |
| 245 | return d->vec; |
| 246 | } |
| 247 | |
| 248 | /** @brief Create a new node */ |
| 249 | static struct choosenode *newnode(struct choosenode *parent, |
| 250 | const char *path, |
| 251 | const char *display, |
| 252 | const char *sort, |
| 253 | unsigned flags, |
| 254 | void (*fill)(struct choosenode *)) { |
| 255 | struct choosenode *const n = xmalloc(sizeof *n); |
| 256 | |
| 257 | D(("newnode %s %s", path, display)); |
| 258 | if(flags & CN_EXPANDABLE) |
| 259 | assert(fill); |
| 260 | else |
| 261 | assert(!fill); |
| 262 | n->parent = parent; |
| 263 | n->path = path; |
| 264 | n->display = display; |
| 265 | n->sort = sort; |
| 266 | n->flags = flags; |
| 267 | nodevector_init(&n->children); |
| 268 | n->fill = fill; |
| 269 | if(parent) |
| 270 | nodevector_append(&parent->children, n); |
| 271 | return n; |
| 272 | } |
| 273 | |
| 274 | /** @brief Called when a node has been filled |
| 275 | * |
| 276 | * Response for calling @c whenfilled. |
| 277 | */ |
| 278 | static void filled(struct choosenode *cn) { |
| 279 | when_filled_callback *const whenfilled = cn->whenfilled; |
| 280 | |
| 281 | if(whenfilled) { |
| 282 | cn->whenfilled = 0; |
| 283 | whenfilled(cn, cn->wfu); |
| 284 | } |
| 285 | if(nsearchvisible < nsearchresults) { |
| 286 | /* There is still search expansion work to do */ |
| 287 | D(("filled %s %d/%d", cn->path, nsearchvisible, nsearchresults)); |
| 288 | expand_from(cn); |
| 289 | } |
| 290 | if(gets_in_flight == 0 && nsearchvisible < nsearchresults) |
| 291 | expand_from(root); |
| 292 | } |
| 293 | |
| 294 | /** @brief Fill the root */ |
| 295 | static void fill_root_node(struct choosenode *cn) { |
| 296 | struct callbackdata *cbd; |
| 297 | |
| 298 | D(("fill_root_node")); |
| 299 | clear_children(cn); |
| 300 | /* More de-duping possible here */ |
| 301 | if(cn->flags & CN_GETTING_ANY) |
| 302 | return; |
| 303 | gtk_label_set_text(GTK_LABEL(report_label), "getting files"); |
| 304 | cbd = xmalloc(sizeof *cbd); |
| 305 | cbd->u.choosenode = cn; |
| 306 | disorder_eclient_dirs(client, got_dirs, "", 0, cbd); |
| 307 | cbd = xmalloc(sizeof *cbd); |
| 308 | cbd->u.choosenode = cn; |
| 309 | disorder_eclient_files(client, got_files, "", 0, cbd); |
| 310 | cn->flags |= CN_GETTING_FILES|CN_GETTING_DIRS; |
| 311 | gets_in_flight += 2; |
| 312 | } |
| 313 | |
| 314 | /** @brief Delete all the widgets owned by @p cn */ |
| 315 | static void delete_cn_widgets(struct choosenode *cn) { |
| 316 | if(cn->arrow) { |
| 317 | DW(arrow); |
| 318 | gtk_widget_destroy(cn->arrow); |
| 319 | cn->arrow = 0; |
| 320 | } |
| 321 | if(cn->label) { |
| 322 | DW(label); |
| 323 | gtk_widget_destroy(cn->label); |
| 324 | cn->label = 0; |
| 325 | } |
| 326 | if(cn->marker) { |
| 327 | DW(image); |
| 328 | gtk_widget_destroy(cn->marker); |
| 329 | cn->marker = 0; |
| 330 | } |
| 331 | if(cn->hbox) { |
| 332 | DW(hbox); |
| 333 | gtk_widget_destroy(cn->hbox); |
| 334 | cn->hbox = 0; |
| 335 | } |
| 336 | if(cn->container) { |
| 337 | DW(event_box); |
| 338 | gtk_widget_destroy(cn->container); |
| 339 | cn->container = 0; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | /** @brief Recursively clear all the children of @p cn |
| 344 | * |
| 345 | * All the widgets at or below @p cn are deleted. All choosenodes below |
| 346 | * it are emptied. i.e. we prune the tree at @p cn. |
| 347 | */ |
| 348 | static void clear_children(struct choosenode *cn) { |
| 349 | int n; |
| 350 | |
| 351 | D(("clear_children %s", cn->path)); |
| 352 | /* Recursively clear subtrees */ |
| 353 | for(n = 0; n < cn->children.nvec; ++n) { |
| 354 | clear_children(cn->children.vec[n]); |
| 355 | delete_cn_widgets(cn->children.vec[n]); |
| 356 | } |
| 357 | cn->children.nvec = 0; |
| 358 | } |
| 359 | |
| 360 | /** @brief Called with a list of files just below some node */ |
| 361 | static void got_files(void *v, int nvec, char **vec) { |
| 362 | struct callbackdata *cbd = v; |
| 363 | struct choosenode *cn = cbd->u.choosenode; |
| 364 | int n; |
| 365 | |
| 366 | D(("got_files %d files for %s %s", nvec, cn->path, cnflags(cn))); |
| 367 | /* Complicated by the need to resolve aliases. We can save a bit of effort |
| 368 | * by re-using cbd though. */ |
| 369 | cn->flags &= ~CN_GETTING_FILES; |
| 370 | --gets_in_flight; |
| 371 | if((cn->pending = nvec)) { |
| 372 | cn->flags |= CN_RESOLVING_FILES; |
| 373 | for(n = 0; n < nvec; ++n) { |
| 374 | disorder_eclient_resolve(client, got_resolved_file, vec[n], cbd); |
| 375 | ++gets_in_flight; |
| 376 | } |
| 377 | } |
| 378 | /* If there are no files and the directories are all read by now, we're |
| 379 | * done */ |
| 380 | if(!(cn->flags & CN_GETTING_ANY)) |
| 381 | filled(cn); |
| 382 | } |
| 383 | |
| 384 | /** @brief Called with an alias resolved filename */ |
| 385 | static void got_resolved_file(void *v, const char *track) { |
| 386 | struct callbackdata *cbd = v; |
| 387 | struct choosenode *cn = cbd->u.choosenode, *file_cn; |
| 388 | |
| 389 | D(("resolved %s %s %d left", cn->path, cnflags(cn), cn->pending - 1)); |
| 390 | /* TODO as below */ |
| 391 | file_cn = newnode(cn, track, |
| 392 | trackname_transform("track", track, "display"), |
| 393 | trackname_transform("track", track, "sort"), |
| 394 | 0/*flags*/, 0/*fill*/); |
| 395 | --gets_in_flight; |
| 396 | /* Only bother updating when we've got the lot */ |
| 397 | if(--cn->pending == 0) { |
| 398 | cn->flags &= ~CN_RESOLVING_FILES; |
| 399 | updated_node(cn, 1); |
| 400 | if(!(cn->flags & CN_GETTING_ANY)) |
| 401 | filled(cn); |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | /** @brief Called with a list of directories just below some node */ |
| 406 | static void got_dirs(void *v, int nvec, char **vec) { |
| 407 | struct callbackdata *cbd = v; |
| 408 | struct choosenode *cn = cbd->u.choosenode; |
| 409 | int n; |
| 410 | |
| 411 | D(("got_dirs %d dirs for %s %s", nvec, cn->path, cnflags(cn))); |
| 412 | /* TODO this depends on local configuration for trackname_transform(). |
| 413 | * This will work, since the defaults are now built-in, but it'll be |
| 414 | * (potentially) different to the server's configured settings. |
| 415 | * |
| 416 | * Really we want a variant of files/dirs that produces both the |
| 417 | * raw filename and the transformed name for a chosen context. |
| 418 | */ |
| 419 | --gets_in_flight; |
| 420 | for(n = 0; n < nvec; ++n) |
| 421 | newnode(cn, vec[n], |
| 422 | trackname_transform("dir", vec[n], "display"), |
| 423 | trackname_transform("dir", vec[n], "sort"), |
| 424 | CN_EXPANDABLE, fill_directory_node); |
| 425 | updated_node(cn, 1); |
| 426 | cn->flags &= ~CN_GETTING_DIRS; |
| 427 | if(!(cn->flags & CN_GETTING_ANY)) |
| 428 | filled(cn); |
| 429 | } |
| 430 | |
| 431 | /** @brief Fill a child node */ |
| 432 | static void fill_directory_node(struct choosenode *cn) { |
| 433 | struct callbackdata *cbd; |
| 434 | |
| 435 | D(("fill_directory_node %s", cn->path)); |
| 436 | /* TODO: caching */ |
| 437 | if(cn->flags & CN_GETTING_ANY) |
| 438 | return; |
| 439 | assert(report_label != 0); |
| 440 | gtk_label_set_text(GTK_LABEL(report_label), "getting files"); |
| 441 | clear_children(cn); |
| 442 | cbd = xmalloc(sizeof *cbd); |
| 443 | cbd->u.choosenode = cn; |
| 444 | disorder_eclient_dirs(client, got_dirs, cn->path, 0, cbd); |
| 445 | cbd = xmalloc(sizeof *cbd); |
| 446 | cbd->u.choosenode = cn; |
| 447 | disorder_eclient_files(client, got_files, cn->path, 0, cbd); |
| 448 | cn->flags |= CN_GETTING_FILES|CN_GETTING_DIRS; |
| 449 | gets_in_flight += 2; |
| 450 | } |
| 451 | |
| 452 | /** @brief Expand a node */ |
| 453 | static void expand_node(struct choosenode *cn, int contingent) { |
| 454 | D(("expand_node %s %d %s", cn->path, contingent, cnflags(cn))); |
| 455 | assert(cn->flags & CN_EXPANDABLE); |
| 456 | /* If node is already expanded do nothing. */ |
| 457 | if(cn->flags & CN_EXPANDED) return; |
| 458 | /* We mark the node as expanded and request that it fill itself. When it has |
| 459 | * completed it will called updated_node() and we can redraw at that |
| 460 | * point. */ |
| 461 | cn->flags |= CN_EXPANDED; |
| 462 | if(contingent) |
| 463 | cn->flags |= CN_CONTINGENT; |
| 464 | else |
| 465 | cn->flags &= ~CN_CONTINGENT; |
| 466 | /* If this node is not contingently expanded, mark all its parents back to |
| 467 | * the root as not contingent either, so they won't be contracted when the |
| 468 | * search results change */ |
| 469 | if(!contingent) { |
| 470 | struct choosenode *cnp; |
| 471 | |
| 472 | for(cnp = cn->parent; cnp; cnp = cnp->parent) |
| 473 | cnp->flags &= ~CN_CONTINGENT; |
| 474 | } |
| 475 | /* TODO: visual feedback */ |
| 476 | cn->fill(cn); |
| 477 | } |
| 478 | |
| 479 | /** @brief Make sure all the search results below @p cn are expanded |
| 480 | * @param cn Node to start at |
| 481 | */ |
| 482 | static void expand_from(struct choosenode *cn) { |
| 483 | int n; |
| 484 | |
| 485 | if(nsearchvisible == nsearchresults) |
| 486 | /* We're done */ |
| 487 | return; |
| 488 | /* Are any of the search tracks at/below this point? */ |
| 489 | if(!(cn == root || hash_find(searchhash, cn->path))) |
| 490 | return; |
| 491 | D(("expand_from %d/%d visible %s", |
| 492 | nsearchvisible, nsearchresults, cn->path)); |
| 493 | if(cn->flags & CN_EXPANDABLE) { |
| 494 | if(cn->flags & CN_EXPANDED) |
| 495 | /* This node is marked as expanded already. children.nvec might be 0, |
| 496 | * indicating that expansion is still underway. We should get another |
| 497 | * callback when it is expanded. */ |
| 498 | for(n = 0; n < cn->children.nvec && gets_in_flight < 10; ++n) |
| 499 | expand_from(cn->children.vec[n]); |
| 500 | else { |
| 501 | /* This node is not expanded yet */ |
| 502 | expand_node(cn, 1); |
| 503 | } |
| 504 | } else { |
| 505 | /* This is an actual search result */ |
| 506 | ++nsearchvisible; |
| 507 | progress_window_progress(spw, nsearchvisible, nsearchresults); |
| 508 | if(nsearchvisible == nsearchresults) { |
| 509 | /* We've got the lot. We make sure the first result is visible. */ |
| 510 | cn = first_search_result(root); |
| 511 | gtk_adjustment_clamp_page(vadjust, cn->ymin, cn->ymax); |
| 512 | } |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | /** @brief Contract all contingently expanded nodes below @p cn */ |
| 517 | static void contract_contingent(struct choosenode *cn) { |
| 518 | int n; |
| 519 | |
| 520 | if(cn->flags & CN_CONTINGENT) |
| 521 | contract_node(cn); |
| 522 | else |
| 523 | for(n = 0; n < cn->children.nvec; ++n) |
| 524 | contract_contingent(cn->children.vec[n]); |
| 525 | } |
| 526 | |
| 527 | /** @brief Contract a node */ |
| 528 | static void contract_node(struct choosenode *cn) { |
| 529 | D(("contract_node %s", cn->path)); |
| 530 | assert(cn->flags & CN_EXPANDABLE); |
| 531 | /* If node is already contracted do nothing. */ |
| 532 | if(!(cn->flags & CN_EXPANDED)) return; |
| 533 | cn->flags &= ~(CN_EXPANDED|CN_CONTINGENT); |
| 534 | /* Clear selection below this node */ |
| 535 | clear_selection(cn); |
| 536 | /* Zot children. We never used to do this but the result would be that over |
| 537 | * time you'd end up with the entire tree pulled into memory. If the server |
| 538 | * is over a slow network it will make interactivity slightly worse; if |
| 539 | * anyone complains we can make it an option. */ |
| 540 | clear_children(cn); |
| 541 | /* We can contract a node immediately. */ |
| 542 | redisplay_tree(); |
| 543 | } |
| 544 | |
| 545 | /** @brief qsort() callback for ordering choosenodes */ |
| 546 | static int compare_choosenode(const void *av, const void *bv) { |
| 547 | const struct choosenode *const *aa = av, *const *bb = bv; |
| 548 | const struct choosenode *a = *aa, *b = *bb; |
| 549 | |
| 550 | return compare_tracks(a->sort, b->sort, |
| 551 | a->display, b->display, |
| 552 | a->path, b->path); |
| 553 | } |
| 554 | |
| 555 | /** @brief Called when an expandable node is updated. */ |
| 556 | static void updated_node(struct choosenode *cn, int redisplay) { |
| 557 | D(("updated_node %s", cn->path)); |
| 558 | assert(cn->flags & CN_EXPANDABLE); |
| 559 | /* It might be that the node has been de-expanded since we requested the |
| 560 | * update. In that case we ignore this notification. */ |
| 561 | if(!(cn->flags & CN_EXPANDED)) return; |
| 562 | /* Sort children */ |
| 563 | qsort(cn->children.vec, cn->children.nvec, sizeof (struct choosenode *), |
| 564 | compare_choosenode); |
| 565 | if(redisplay) |
| 566 | redisplay_tree(); |
| 567 | } |
| 568 | |
| 569 | /* Searching --------------------------------------------------------------- */ |
| 570 | |
| 571 | /** @brief Return true if @p track is a search result |
| 572 | * |
| 573 | * In particular the return value is one more than the index of the track |
| 574 | * @p searchresults. |
| 575 | */ |
| 576 | static int is_search_result(const char *track) { |
| 577 | void *r; |
| 578 | |
| 579 | if(searchhash && (r = hash_find(searchhash, track))) |
| 580 | return 1 + *(int *)r; |
| 581 | else |
| 582 | return 0; |
| 583 | } |
| 584 | |
| 585 | /** @brief Return the first search result at or below @p cn */ |
| 586 | static struct choosenode *first_search_result(struct choosenode *cn) { |
| 587 | int n; |
| 588 | struct choosenode *r; |
| 589 | |
| 590 | if(cn->flags & CN_EXPANDABLE) { |
| 591 | for(n = 0; n < cn->children.nvec; ++n) |
| 592 | if((r = first_search_result(cn->children.vec[n]))) |
| 593 | return r; |
| 594 | } else if(is_search_result(cn->path)) |
| 595 | return cn; |
| 596 | return 0; |
| 597 | } |
| 598 | |
| 599 | /** @brief Called with a list of search results |
| 600 | * |
| 601 | * This is called from eclient with a (possibly empty) list of search results, |
| 602 | * and also from initiate_seatch with an always empty list to indicate that |
| 603 | * we're not searching for anything in particular. */ |
| 604 | static void search_completed(void attribute((unused)) *v, |
| 605 | int nvec, char **vec) { |
| 606 | int n; |
| 607 | char *s; |
| 608 | |
| 609 | search_in_flight = 0; |
| 610 | /* Contract any choosenodes that were only expanded to show search |
| 611 | * results */ |
| 612 | contract_contingent(root); |
| 613 | if(search_obsolete) { |
| 614 | /* This search has been obsoleted by user input since it started. |
| 615 | * Therefore we throw away the result and search again. */ |
| 616 | search_obsolete = 0; |
| 617 | initiate_search(); |
| 618 | } else { |
| 619 | /* Stash the search results */ |
| 620 | searchresults = vec; |
| 621 | nsearchresults = nvec; |
| 622 | if(nvec) { |
| 623 | /* Create a new search hash for fast identification of results */ |
| 624 | searchhash = hash_new(sizeof(int)); |
| 625 | for(n = 0; n < nvec; ++n) { |
| 626 | int *const ip = xmalloc(sizeof (int *)); |
| 627 | static const int minus_1 = -1; |
| 628 | *ip = n; |
| 629 | /* The filename itself lives in the hash */ |
| 630 | hash_add(searchhash, vec[n], ip, HASH_INSERT_OR_REPLACE); |
| 631 | /* So do its ancestor directories */ |
| 632 | for(s = vec[n] + 1; *s; ++s) { |
| 633 | if(*s == '/') { |
| 634 | *s = 0; |
| 635 | hash_add(searchhash, vec[n], &minus_1, HASH_INSERT_OR_REPLACE); |
| 636 | *s = '/'; |
| 637 | } |
| 638 | } |
| 639 | } |
| 640 | /* We don't yet know that the results are visible */ |
| 641 | nsearchvisible = 0; |
| 642 | if(spw) { |
| 643 | progress_window_progress(spw, 0, 0); |
| 644 | spw = 0; |
| 645 | } |
| 646 | if(nsearchresults > 50) |
| 647 | spw = progress_window_new("Fetching search results"); |
| 648 | /* Initiate expansion */ |
| 649 | expand_from(root); |
| 650 | /* The search results buttons are usable */ |
| 651 | gtk_widget_set_sensitive(nextsearch, 1); |
| 652 | gtk_widget_set_sensitive(prevsearch, 1); |
| 653 | } else { |
| 654 | searchhash = 0; /* for the gc */ |
| 655 | redisplay_tree(); /* remove search markers */ |
| 656 | /* The search results buttons are not usable */ |
| 657 | gtk_widget_set_sensitive(nextsearch, 0); |
| 658 | gtk_widget_set_sensitive(prevsearch, 0); |
| 659 | } |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | /** @brief Initiate a search |
| 664 | * |
| 665 | * If a search is underway we set @ref search_obsolete and restart the search |
| 666 | * in search_completed() above. |
| 667 | */ |
| 668 | static void initiate_search(void) { |
| 669 | char *terms, *e; |
| 670 | |
| 671 | /* Find out what the user is after */ |
| 672 | terms = xstrdup(gtk_entry_get_text(GTK_ENTRY(searchentry))); |
| 673 | /* Strip leading and trailing space */ |
| 674 | while(*terms == ' ') ++terms; |
| 675 | e = terms + strlen(terms); |
| 676 | while(e > terms && e[-1] == ' ') --e; |
| 677 | *e = 0; |
| 678 | /* If a search is already underway then mark it as obsolete. We'll revisit |
| 679 | * when it returns. */ |
| 680 | if(search_in_flight) { |
| 681 | search_obsolete = 1; |
| 682 | return; |
| 683 | } |
| 684 | if(*terms) { |
| 685 | /* There's still something left. Initiate the search. */ |
| 686 | if(disorder_eclient_search(client, search_completed, terms, 0)) { |
| 687 | /* The search terms are bad! We treat this as if there were no search |
| 688 | * terms at all. Some kind of feedback would be handy. */ |
| 689 | fprintf(stderr, "bad terms [%s]\n", terms); /* TODO */ |
| 690 | search_completed(0, 0, 0); |
| 691 | } else { |
| 692 | search_in_flight = 1; |
| 693 | } |
| 694 | } else { |
| 695 | /* No search terms - we want to see all tracks */ |
| 696 | search_completed(0, 0, 0); |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | /** @brief Called when the cancel search button is clicked */ |
| 701 | static void clearsearch_clicked(GtkButton attribute((unused)) *button, |
| 702 | gpointer attribute((unused)) userdata) { |
| 703 | gtk_entry_set_text(GTK_ENTRY(searchentry), ""); |
| 704 | } |
| 705 | |
| 706 | /** @brief Called when the 'next search result' button is clicked */ |
| 707 | static void next_clicked(GtkButton attribute((unused)) *button, |
| 708 | gpointer attribute((unused)) userdata) { |
| 709 | /* We want to find the highest (lowest ymax) track that is below the current |
| 710 | * visible range */ |
| 711 | int n; |
| 712 | const gdouble bottom = gtk_adjustment_get_value(vadjust) + vadjust->page_size; |
| 713 | const struct choosenode *candidate = 0; |
| 714 | |
| 715 | for(n = 0; n < nsearchresults; ++n) { |
| 716 | const struct choosenode *const cn = searchnodes[n]; |
| 717 | |
| 718 | if(cn |
| 719 | && cn->ymax > bottom |
| 720 | && (candidate == 0 |
| 721 | || cn->ymax < candidate->ymax)) |
| 722 | candidate = cn; |
| 723 | } |
| 724 | if(candidate) |
| 725 | gtk_adjustment_clamp_page(vadjust, candidate->ymin, candidate->ymax); |
| 726 | } |
| 727 | |
| 728 | /** @brief Called when the 'previous search result' button is clicked */ |
| 729 | static void prev_clicked(GtkButton attribute((unused)) *button, |
| 730 | gpointer attribute((unused)) userdata) { |
| 731 | /* We want to find the lowest (greated ymax) track that is above the current |
| 732 | * visible range */ |
| 733 | int n; |
| 734 | const gdouble top = gtk_adjustment_get_value(vadjust); |
| 735 | const struct choosenode *candidate = 0; |
| 736 | |
| 737 | for(n = 0; n < nsearchresults; ++n) { |
| 738 | const struct choosenode *const cn = searchnodes[n]; |
| 739 | |
| 740 | if(cn |
| 741 | && cn->ymin < top |
| 742 | && (candidate == 0 |
| 743 | || cn->ymax > candidate->ymax)) |
| 744 | candidate = cn; |
| 745 | } |
| 746 | if(candidate) |
| 747 | gtk_adjustment_clamp_page(vadjust, candidate->ymin, candidate->ymax); |
| 748 | } |
| 749 | |
| 750 | /* Display functions ------------------------------------------------------- */ |
| 751 | |
| 752 | /** @brief Delete all the widgets in the tree */ |
| 753 | static void delete_widgets(struct choosenode *cn) { |
| 754 | int n; |
| 755 | |
| 756 | delete_cn_widgets(cn); |
| 757 | for(n = 0; n < cn->children.nvec; ++n) |
| 758 | delete_widgets(cn->children.vec[n]); |
| 759 | cn->flags &= ~(CN_DISPLAYED|CN_SELECTED); |
| 760 | files_selected = 0; |
| 761 | } |
| 762 | |
| 763 | /** @brief Update the display */ |
| 764 | static void redisplay_tree(void) { |
| 765 | struct displaydata d; |
| 766 | guint oldwidth, oldheight; |
| 767 | |
| 768 | D(("redisplay_tree")); |
| 769 | /* We'll count these up empirically each time */ |
| 770 | files_selected = 0; |
| 771 | files_visible = 0; |
| 772 | /* Correct the layout and find out how much space it uses */ |
| 773 | MTAG_PUSH("display_tree"); |
| 774 | searchnodes = nsearchresults ? xcalloc(nsearchresults, |
| 775 | sizeof (struct choosenode *)) : 0; |
| 776 | d = display_tree(root, 0, 0); |
| 777 | MTAG_POP(); |
| 778 | /* We must set the total size or scrolling will not work (it wouldn't be hard |
| 779 | * for GtkLayout to figure it out for itself but presumably you're supposed |
| 780 | * to be able to have widgets off the edge of the layuot.) |
| 781 | * |
| 782 | * There is a problem: if we shrink the size then the part of the screen that |
| 783 | * is outside the new size but inside the old one is not updated. I think |
| 784 | * this is arguably bug in GTK+ but it's easy to force a redraw if this |
| 785 | * region is nonempty. |
| 786 | */ |
| 787 | gtk_layout_get_size(GTK_LAYOUT(chooselayout), &oldwidth, &oldheight); |
| 788 | if(oldwidth > d.width || oldheight > d.height) |
| 789 | gtk_widget_queue_draw(chooselayout); |
| 790 | gtk_layout_set_size(GTK_LAYOUT(chooselayout), d.width, d.height); |
| 791 | /* Notify the main menu of any recent changes */ |
| 792 | menu_update(-1); |
| 793 | } |
| 794 | |
| 795 | /** @brief Recursive step for redisplay_tree() |
| 796 | * @param cn Node to display |
| 797 | * @param x X coordinate for @p cn |
| 798 | * @param y Y coordinate for @p cn |
| 799 | * |
| 800 | * Makes sure all displayed widgets from CN down exist and are in their proper |
| 801 | * place and return the maximum space used. |
| 802 | */ |
| 803 | static struct displaydata display_tree(struct choosenode *cn, int x, int y) { |
| 804 | int n, aw; |
| 805 | GtkRequisition req; |
| 806 | struct displaydata d, cd; |
| 807 | GdkPixbuf *pb; |
| 808 | const char *name; |
| 809 | const int search_result = is_search_result(cn->path); |
| 810 | |
| 811 | D(("display_tree %s %d,%d", cn->path, x, y)); |
| 812 | |
| 813 | /* An expandable item contains an arrow and a text label. When you press the |
| 814 | * button it flips its expand state. |
| 815 | * |
| 816 | * A non-expandable item has just a text label and no arrow. |
| 817 | */ |
| 818 | if(!cn->container) { |
| 819 | MTAG_PUSH("make_widgets_1"); |
| 820 | /* Widgets need to be created */ |
| 821 | NW(hbox); |
| 822 | cn->hbox = gtk_hbox_new(FALSE, 1); |
| 823 | if(cn->flags & CN_EXPANDABLE) { |
| 824 | NW(arrow); |
| 825 | cn->arrow = gtk_arrow_new(cn->flags & CN_EXPANDED ? GTK_ARROW_DOWN |
| 826 | : GTK_ARROW_RIGHT, |
| 827 | GTK_SHADOW_NONE); |
| 828 | cn->marker = 0; |
| 829 | } else { |
| 830 | cn->arrow = 0; |
| 831 | if((pb = find_image("notes.png"))) { |
| 832 | NW(image); |
| 833 | cn->marker = gtk_image_new_from_pixbuf(pb); |
| 834 | } |
| 835 | } |
| 836 | MTAG_POP(); |
| 837 | MTAG_PUSH("make_widgets_2"); |
| 838 | NW(label); |
| 839 | cn->label = gtk_label_new(cn->display); |
| 840 | if(cn->arrow) |
| 841 | gtk_container_add(GTK_CONTAINER(cn->hbox), cn->arrow); |
| 842 | gtk_container_add(GTK_CONTAINER(cn->hbox), cn->label); |
| 843 | if(cn->marker) |
| 844 | gtk_container_add(GTK_CONTAINER(cn->hbox), cn->marker); |
| 845 | MTAG_POP(); |
| 846 | MTAG_PUSH("make_widgets_3"); |
| 847 | NW(event_box); |
| 848 | cn->container = gtk_event_box_new(); |
| 849 | gtk_container_add(GTK_CONTAINER(cn->container), cn->hbox); |
| 850 | g_signal_connect(cn->container, "button-release-event", |
| 851 | G_CALLBACK(clicked_choosenode), cn); |
| 852 | g_signal_connect(cn->container, "button-press-event", |
| 853 | G_CALLBACK(clicked_choosenode), cn); |
| 854 | g_object_ref(cn->container); |
| 855 | /* Show everything by default */ |
| 856 | gtk_widget_show_all(cn->container); |
| 857 | MTAG_POP(); |
| 858 | } |
| 859 | assert(cn->container); |
| 860 | /* Make sure the widget name is right */ |
| 861 | name = (cn->flags & CN_EXPANDABLE |
| 862 | ? "choose-dir" |
| 863 | : search_result ? "choose-search" : "choose"); |
| 864 | gtk_widget_set_name(cn->label, name); |
| 865 | gtk_widget_set_name(cn->container, name); |
| 866 | /* Make sure the icon is right */ |
| 867 | if(cn->flags & CN_EXPANDABLE) |
| 868 | gtk_arrow_set(GTK_ARROW(cn->arrow), |
| 869 | cn->flags & CN_EXPANDED ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT, |
| 870 | GTK_SHADOW_NONE); |
| 871 | else if(cn->marker) |
| 872 | /* Make sure the queued marker is right */ |
| 873 | /* TODO: doesn't always work */ |
| 874 | (queued(cn->path) ? gtk_widget_show : gtk_widget_hide)(cn->marker); |
| 875 | /* Put the widget in the right place */ |
| 876 | if(cn->flags & CN_DISPLAYED) |
| 877 | gtk_layout_move(GTK_LAYOUT(chooselayout), cn->container, x, y); |
| 878 | else { |
| 879 | gtk_layout_put(GTK_LAYOUT(chooselayout), cn->container, x, y); |
| 880 | cn->flags |= CN_DISPLAYED; |
| 881 | /* Now chooselayout has a ref to the container */ |
| 882 | g_object_unref(cn->container); |
| 883 | } |
| 884 | /* Set the widget's selection status */ |
| 885 | if(!(cn->flags & CN_EXPANDABLE)) |
| 886 | display_selection(cn); |
| 887 | /* Find the size used so we can get vertical positioning right. */ |
| 888 | gtk_widget_size_request(cn->container, &req); |
| 889 | d.width = x + req.width; |
| 890 | d.height = y + req.height; |
| 891 | cn->ymin = y; |
| 892 | cn->ymax = d.height; |
| 893 | if(cn->flags & CN_EXPANDED) { |
| 894 | /* We'll offset children by the size of the arrow whatever it might be. */ |
| 895 | assert(cn->arrow); |
| 896 | gtk_widget_size_request(cn->arrow, &req); |
| 897 | aw = req.width; |
| 898 | for(n = 0; n < cn->children.nvec; ++n) { |
| 899 | cd = display_tree(cn->children.vec[n], x + aw, d.height); |
| 900 | if(cd.width > d.width) |
| 901 | d.width = cd.width; |
| 902 | d.height = cd.height; |
| 903 | } |
| 904 | } else { |
| 905 | for(n = 0; n < cn->children.nvec; ++n) |
| 906 | undisplay_tree(cn->children.vec[n]); |
| 907 | } |
| 908 | if(!(cn->flags & CN_EXPANDABLE)) { |
| 909 | ++files_visible; |
| 910 | if(cn->flags & CN_SELECTED) |
| 911 | ++files_selected; |
| 912 | } |
| 913 | /* update the search results array */ |
| 914 | if(search_result) |
| 915 | searchnodes[search_result - 1] = cn; |
| 916 | /* report back how much space we used */ |
| 917 | D(("display_tree %s %d,%d total size %dx%d", cn->path, x, y, |
| 918 | d.width, d.height)); |
| 919 | return d; |
| 920 | } |
| 921 | |
| 922 | /** @brief Remove widgets for newly hidden nodes */ |
| 923 | static void undisplay_tree(struct choosenode *cn) { |
| 924 | int n; |
| 925 | |
| 926 | D(("undisplay_tree %s", cn->path)); |
| 927 | /* Remove this widget from the display */ |
| 928 | if(cn->flags & CN_DISPLAYED) { |
| 929 | gtk_container_remove(GTK_CONTAINER(chooselayout), cn->container); |
| 930 | cn->flags ^= CN_DISPLAYED; |
| 931 | } |
| 932 | /* Remove children too */ |
| 933 | for(n = 0; n < cn->children.nvec; ++n) |
| 934 | undisplay_tree(cn->children.vec[n]); |
| 935 | } |
| 936 | |
| 937 | /* Selection --------------------------------------------------------------- */ |
| 938 | |
| 939 | /** @brief Mark the widget @p cn according to its selection state */ |
| 940 | static void display_selection(struct choosenode *cn) { |
| 941 | /* Need foreground and background colors */ |
| 942 | gtk_widget_set_state(cn->label, (cn->flags & CN_SELECTED |
| 943 | ? GTK_STATE_SELECTED : GTK_STATE_NORMAL)); |
| 944 | gtk_widget_set_state(cn->container, (cn->flags & CN_SELECTED |
| 945 | ? GTK_STATE_SELECTED : GTK_STATE_NORMAL)); |
| 946 | } |
| 947 | |
| 948 | /** @brief Set the selection state of a widget |
| 949 | * |
| 950 | * Directories can never be selected, we just ignore attempts to do so. */ |
| 951 | static void set_selection(struct choosenode *cn, int selected) { |
| 952 | unsigned f = selected ? CN_SELECTED : 0; |
| 953 | |
| 954 | D(("set_selection %d %s", selected, cn->path)); |
| 955 | if(!(cn->flags & CN_EXPANDABLE) && (cn->flags & CN_SELECTED) != f) { |
| 956 | cn->flags ^= CN_SELECTED; |
| 957 | /* Maintain selection count */ |
| 958 | if(selected) |
| 959 | ++files_selected; |
| 960 | else |
| 961 | --files_selected; |
| 962 | display_selection(cn); |
| 963 | /* Update main menu sensitivity */ |
| 964 | menu_update(-1); |
| 965 | } |
| 966 | } |
| 967 | |
| 968 | /** @brief Recursively clear all selection bits from CN down */ |
| 969 | static void clear_selection(struct choosenode *cn) { |
| 970 | int n; |
| 971 | |
| 972 | set_selection(cn, 0); |
| 973 | for(n = 0; n < cn->children.nvec; ++n) |
| 974 | clear_selection(cn->children.vec[n]); |
| 975 | } |
| 976 | |
| 977 | /* User actions ------------------------------------------------------------ */ |
| 978 | |
| 979 | /** @brief Clicked on something |
| 980 | * |
| 981 | * This implements playing, all the modifiers for selection, etc. |
| 982 | */ |
| 983 | static void clicked_choosenode(GtkWidget attribute((unused)) *widget, |
| 984 | GdkEventButton *event, |
| 985 | gpointer user_data) { |
| 986 | struct choosenode *cn = user_data; |
| 987 | int ind, last_ind, n; |
| 988 | |
| 989 | D(("clicked_choosenode %s", cn->path)); |
| 990 | if(event->type == GDK_BUTTON_RELEASE |
| 991 | && event->button == 1) { |
| 992 | /* Left click */ |
| 993 | if(cn->flags & CN_EXPANDABLE) { |
| 994 | /* This is a directory. Flip its expansion status. */ |
| 995 | if(cn->flags & CN_EXPANDED) |
| 996 | contract_node(cn); |
| 997 | else |
| 998 | expand_node(cn, 0/*!contingent*/); |
| 999 | last_click = 0; |
| 1000 | } else { |
| 1001 | /* This is a file. Adjust selection status */ |
| 1002 | /* TODO the basic logic here is essentially the same as that in queue.c. |
| 1003 | * Can we share code at all? */ |
| 1004 | switch(event->state & (GDK_SHIFT_MASK|GDK_CONTROL_MASK)) { |
| 1005 | case 0: |
| 1006 | clear_selection(root); |
| 1007 | set_selection(cn, 1); |
| 1008 | last_click = cn; |
| 1009 | break; |
| 1010 | case GDK_CONTROL_MASK: |
| 1011 | set_selection(cn, !(cn->flags & CN_SELECTED)); |
| 1012 | last_click = cn; |
| 1013 | break; |
| 1014 | case GDK_SHIFT_MASK: |
| 1015 | case GDK_SHIFT_MASK|GDK_CONTROL_MASK: |
| 1016 | if(last_click && last_click->parent == cn->parent) { |
| 1017 | /* Figure out where the current and last clicks are in the list */ |
| 1018 | ind = last_ind = -1; |
| 1019 | for(n = 0; n < cn->parent->children.nvec; ++n) { |
| 1020 | if(cn->parent->children.vec[n] == cn) |
| 1021 | ind = n; |
| 1022 | if(cn->parent->children.vec[n] == last_click) |
| 1023 | last_ind = n; |
| 1024 | } |
| 1025 | /* Test shouldn't ever fail, but still */ |
| 1026 | if(ind >= 0 && last_ind >= 0) { |
| 1027 | if(!(event->state & GDK_CONTROL_MASK)) { |
| 1028 | for(n = 0; n < cn->parent->children.nvec; ++n) |
| 1029 | set_selection(cn->parent->children.vec[n], 0); |
| 1030 | } |
| 1031 | if(ind > last_ind) |
| 1032 | for(n = last_ind; n <= ind; ++n) |
| 1033 | set_selection(cn->parent->children.vec[n], 1); |
| 1034 | else |
| 1035 | for(n = ind; n <= last_ind; ++n) |
| 1036 | set_selection(cn->parent->children.vec[n], 1); |
| 1037 | if(event->state & GDK_CONTROL_MASK) |
| 1038 | last_click = cn; |
| 1039 | } |
| 1040 | } |
| 1041 | /* TODO trying to select a range that doesn't share a single parent |
| 1042 | * currently does not work, but it ought to. */ |
| 1043 | break; |
| 1044 | } |
| 1045 | } |
| 1046 | } else if(event->type == GDK_BUTTON_RELEASE |
| 1047 | && event->button == 2) { |
| 1048 | /* Middle click - play the pointed track */ |
| 1049 | if(!(cn->flags & CN_EXPANDABLE)) { |
| 1050 | clear_selection(root); |
| 1051 | set_selection(cn, 1); |
| 1052 | gtk_label_set_text(GTK_LABEL(report_label), "adding track to queue"); |
| 1053 | disorder_eclient_play(client, cn->path, 0, 0); |
| 1054 | last_click = 0; |
| 1055 | } |
| 1056 | } else if(event->type == GDK_BUTTON_PRESS |
| 1057 | && event->button == 3) { |
| 1058 | struct choose_menuitem *const menuitems = |
| 1059 | (cn->flags & CN_EXPANDABLE ? dir_menuitems : track_menuitems); |
| 1060 | GtkWidget *const menu = |
| 1061 | (cn->flags & CN_EXPANDABLE ? dir_menu : track_menu); |
| 1062 | /* Right click. Pop up a menu. */ |
| 1063 | /* If the current file isn't selected, switch the selection to just that. |
| 1064 | * (If we're looking at a directory then leave the selection alone.) */ |
| 1065 | if(!(cn->flags & CN_EXPANDABLE) && !(cn->flags & CN_SELECTED)) { |
| 1066 | clear_selection(root); |
| 1067 | set_selection(cn, 1); |
| 1068 | last_click = cn; |
| 1069 | } |
| 1070 | /* Set the item sensitivity and callbacks */ |
| 1071 | for(n = 0; menuitems[n].name; ++n) { |
| 1072 | if(menuitems[n].handlerid) |
| 1073 | g_signal_handler_disconnect(menuitems[n].w, |
| 1074 | menuitems[n].handlerid); |
| 1075 | gtk_widget_set_sensitive(menuitems[n].w, |
| 1076 | menuitems[n].sensitive(cn)); |
| 1077 | menuitems[n].handlerid = g_signal_connect |
| 1078 | (menuitems[n].w, "activate", G_CALLBACK(menuitems[n].activate), cn); |
| 1079 | } |
| 1080 | /* Pop up the menu */ |
| 1081 | gtk_widget_show_all(menu); |
| 1082 | gtk_menu_popup(GTK_MENU(menu), 0, 0, 0, 0, |
| 1083 | event->button, event->time); |
| 1084 | } |
| 1085 | } |
| 1086 | |
| 1087 | /** @brief Called BY GTK+ to tell us the search entry box has changed */ |
| 1088 | static void searchentry_changed(GtkEditable attribute((unused)) *editable, |
| 1089 | gpointer attribute((unused)) user_data) { |
| 1090 | initiate_search(); |
| 1091 | } |
| 1092 | |
| 1093 | /* Track menu items -------------------------------------------------------- */ |
| 1094 | |
| 1095 | /** @brief Recursive step for gather_selected() */ |
| 1096 | static void recurse_selected(struct choosenode *cn, struct vector *v) { |
| 1097 | int n; |
| 1098 | |
| 1099 | if(cn->flags & CN_EXPANDABLE) { |
| 1100 | if(cn->flags & CN_EXPANDED) |
| 1101 | for(n = 0; n < cn->children.nvec; ++n) |
| 1102 | recurse_selected(cn->children.vec[n], v); |
| 1103 | } else { |
| 1104 | if((cn->flags & CN_SELECTED) && cn->path) |
| 1105 | vector_append(v, (char *)cn->path); |
| 1106 | } |
| 1107 | } |
| 1108 | |
| 1109 | /*** @brief Get a list of all the selected tracks */ |
| 1110 | static const char **gather_selected(int *ntracks) { |
| 1111 | struct vector v; |
| 1112 | |
| 1113 | vector_init(&v); |
| 1114 | recurse_selected(root, &v); |
| 1115 | vector_terminate(&v); |
| 1116 | if(ntracks) *ntracks = v.nvec; |
| 1117 | return (const char **)v.vec; |
| 1118 | } |
| 1119 | |
| 1120 | /** @brief Called when the track menu's play option is activated */ |
| 1121 | static void activate_track_play(GtkMenuItem attribute((unused)) *menuitem, |
| 1122 | gpointer attribute((unused)) user_data) { |
| 1123 | const char **tracks = gather_selected(0); |
| 1124 | int n; |
| 1125 | |
| 1126 | gtk_label_set_text(GTK_LABEL(report_label), "adding track to queue"); |
| 1127 | for(n = 0; tracks[n]; ++n) |
| 1128 | disorder_eclient_play(client, tracks[n], 0, 0); |
| 1129 | } |
| 1130 | |
| 1131 | /** @brief Called when the menu's properties option is activated */ |
| 1132 | static void activate_track_properties(GtkMenuItem attribute((unused)) *menuitem, |
| 1133 | gpointer attribute((unused)) user_data) { |
| 1134 | int ntracks; |
| 1135 | const char **tracks = gather_selected(&ntracks); |
| 1136 | |
| 1137 | properties(ntracks, tracks); |
| 1138 | } |
| 1139 | |
| 1140 | /** @brief Determine whether the menu's play option should be sensitive */ |
| 1141 | static gboolean sensitive_track_play(struct choosenode attribute((unused)) *cn) { |
| 1142 | return (!!files_selected |
| 1143 | && (disorder_eclient_state(client) & DISORDER_CONNECTED)); |
| 1144 | } |
| 1145 | |
| 1146 | /** @brief Determine whether the menu's properties option should be sensitive */ |
| 1147 | static gboolean sensitive_track_properties(struct choosenode attribute((unused)) *cn) { |
| 1148 | return !!files_selected && (disorder_eclient_state(client) & DISORDER_CONNECTED); |
| 1149 | } |
| 1150 | |
| 1151 | /* Directory menu items ---------------------------------------------------- */ |
| 1152 | |
| 1153 | /** @brief Return the file children of @p cn |
| 1154 | * |
| 1155 | * The list is terminated by a null pointer. |
| 1156 | */ |
| 1157 | static const char **dir_files(struct choosenode *cn, int *nfiles) { |
| 1158 | const char **files = xcalloc(cn->children.nvec + 1, sizeof (char *)); |
| 1159 | int n, m; |
| 1160 | |
| 1161 | for(n = m = 0; n < cn->children.nvec; ++n) |
| 1162 | if(!(cn->children.vec[n]->flags & CN_EXPANDABLE)) |
| 1163 | files[m++] = cn->children.vec[n]->path; |
| 1164 | files[m] = 0; |
| 1165 | if(nfiles) *nfiles = m; |
| 1166 | return files; |
| 1167 | } |
| 1168 | |
| 1169 | static void play_dir(struct choosenode *cn, |
| 1170 | void attribute((unused)) *wfu) { |
| 1171 | int ntracks, n; |
| 1172 | const char **tracks = dir_files(cn, &ntracks); |
| 1173 | |
| 1174 | gtk_label_set_text(GTK_LABEL(report_label), "adding track to queue"); |
| 1175 | for(n = 0; n < ntracks; ++n) |
| 1176 | disorder_eclient_play(client, tracks[n], 0, 0); |
| 1177 | } |
| 1178 | |
| 1179 | static void properties_dir(struct choosenode *cn, |
| 1180 | void attribute((unused)) *wfu) { |
| 1181 | int ntracks; |
| 1182 | const char **tracks = dir_files(cn, &ntracks); |
| 1183 | |
| 1184 | properties(ntracks, tracks); |
| 1185 | } |
| 1186 | |
| 1187 | static void select_dir(struct choosenode *cn, |
| 1188 | void attribute((unused)) *wfu) { |
| 1189 | int n; |
| 1190 | |
| 1191 | clear_selection(root); |
| 1192 | for(n = 0; n < cn->children.nvec; ++n) |
| 1193 | set_selection(cn->children.vec[n], 1); |
| 1194 | } |
| 1195 | |
| 1196 | /** @brief Ensure @p cn is expanded and then call @p callback */ |
| 1197 | static void call_with_dir(struct choosenode *cn, |
| 1198 | when_filled_callback *whenfilled, |
| 1199 | void *wfu) { |
| 1200 | if(!(cn->flags & CN_EXPANDABLE)) |
| 1201 | return; /* something went wrong */ |
| 1202 | if(cn->flags & CN_EXPANDED) |
| 1203 | /* @p cn is already open */ |
| 1204 | whenfilled(cn, wfu); |
| 1205 | else { |
| 1206 | /* @p cn is not open, arrange for the callback to go off when it is |
| 1207 | * opened */ |
| 1208 | cn->whenfilled = whenfilled; |
| 1209 | cn->wfu = wfu; |
| 1210 | expand_node(cn, 0/*not contingnet upon search*/); |
| 1211 | } |
| 1212 | } |
| 1213 | |
| 1214 | /** @brief Called when the directory menu's play option is activated */ |
| 1215 | static void activate_dir_play(GtkMenuItem attribute((unused)) *menuitem, |
| 1216 | gpointer user_data) { |
| 1217 | struct choosenode *const cn = (struct choosenode *)user_data; |
| 1218 | |
| 1219 | call_with_dir(cn, play_dir, 0); |
| 1220 | } |
| 1221 | |
| 1222 | /** @brief Called when the directory menu's properties option is activated */ |
| 1223 | static void activate_dir_properties(GtkMenuItem attribute((unused)) *menuitem, |
| 1224 | gpointer user_data) { |
| 1225 | struct choosenode *const cn = (struct choosenode *)user_data; |
| 1226 | |
| 1227 | call_with_dir(cn, properties_dir, 0); |
| 1228 | } |
| 1229 | |
| 1230 | /** @brief Called when the directory menu's select option is activated */ |
| 1231 | static void activate_dir_select(GtkMenuItem attribute((unused)) *menuitem, |
| 1232 | gpointer user_data) { |
| 1233 | struct choosenode *const cn = (struct choosenode *)user_data; |
| 1234 | |
| 1235 | call_with_dir(cn, select_dir, 0); |
| 1236 | } |
| 1237 | |
| 1238 | /** @brief Determine whether the directory menu's play option should be sensitive */ |
| 1239 | static gboolean sensitive_dir_play(struct choosenode attribute((unused)) *cn) { |
| 1240 | return !!(disorder_eclient_state(client) & DISORDER_CONNECTED); |
| 1241 | } |
| 1242 | |
| 1243 | /** @brief Determine whether the directory menu's properties option should be sensitive */ |
| 1244 | static gboolean sensitive_dir_properties(struct choosenode attribute((unused)) *cn) { |
| 1245 | return !!(disorder_eclient_state(client) & DISORDER_CONNECTED); |
| 1246 | } |
| 1247 | |
| 1248 | /** @brief Determine whether the directory menu's select option should be sensitive */ |
| 1249 | static gboolean sensitive_dir_select(struct choosenode attribute((unused)) *cn) { |
| 1250 | return TRUE; |
| 1251 | } |
| 1252 | |
| 1253 | |
| 1254 | |
| 1255 | /* Main menu plumbing ------------------------------------------------------ */ |
| 1256 | |
| 1257 | /** @brief Determine whether the edit menu's properties option should be sensitive */ |
| 1258 | static int choose_properties_sensitive(GtkWidget attribute((unused)) *w) { |
| 1259 | return !!files_selected && (disorder_eclient_state(client) & DISORDER_CONNECTED); |
| 1260 | } |
| 1261 | |
| 1262 | /** @brief Determine whether the edit menu's select all option should be sensitive |
| 1263 | * |
| 1264 | * TODO not implemented, see also choose_selectall_activate() |
| 1265 | */ |
| 1266 | static int choose_selectall_sensitive(GtkWidget attribute((unused)) *w) { |
| 1267 | return FALSE; |
| 1268 | } |
| 1269 | |
| 1270 | /** @brief Called when the edit menu's properties option is activated */ |
| 1271 | static void choose_properties_activate(GtkWidget attribute((unused)) *w) { |
| 1272 | activate_track_properties(0, 0); |
| 1273 | } |
| 1274 | |
| 1275 | /** @brief Called when the edit menu's select all option is activated |
| 1276 | * |
| 1277 | * TODO not implemented, see choose_selectall_sensitive() */ |
| 1278 | static void choose_selectall_activate(GtkWidget attribute((unused)) *w) { |
| 1279 | } |
| 1280 | |
| 1281 | /** @brief Main menu callbacks for Choose screen */ |
| 1282 | static const struct tabtype tabtype_choose = { |
| 1283 | choose_properties_sensitive, |
| 1284 | choose_selectall_sensitive, |
| 1285 | choose_properties_activate, |
| 1286 | choose_selectall_activate, |
| 1287 | }; |
| 1288 | |
| 1289 | /* Public entry points ----------------------------------------------------- */ |
| 1290 | |
| 1291 | /** @brief Called to entirely reset the choose screen */ |
| 1292 | static void choose_reset(void) { |
| 1293 | if(root) |
| 1294 | undisplay_tree(root); |
| 1295 | root = newnode(0/*parent*/, "<root>", "All files", "", |
| 1296 | CN_EXPANDABLE, fill_root_node); |
| 1297 | expand_node(root, 0); /* will call redisplay_tree */ |
| 1298 | } |
| 1299 | |
| 1300 | /** @brief Create a track choice widget */ |
| 1301 | GtkWidget *choose_widget(void) { |
| 1302 | int n; |
| 1303 | GtkWidget *scrolled; |
| 1304 | GtkWidget *vbox, *hbox, *clearsearch; |
| 1305 | |
| 1306 | /* |
| 1307 | * +--vbox-------------------------------------------------------+ |
| 1308 | * | +-hbox----------------------------------------------------+ | |
| 1309 | * | | searchentry | clearsearch | | |
| 1310 | * | +---------------------------------------------------------+ | |
| 1311 | * | +-scrolled------------------------------------------------+ | |
| 1312 | * | | +-chooselayout------------------------------------++--+ | | |
| 1313 | * | | | Tree structure is manually layed out in here ||^^| | | |
| 1314 | * | | | || | | | |
| 1315 | * | | | || | | | |
| 1316 | * | | | || | | | |
| 1317 | * | | | ||vv| | | |
| 1318 | * | | +-------------------------------------------------++--+ | | |
| 1319 | * | | +-------------------------------------------------+ | | |
| 1320 | * | | |< >| | | |
| 1321 | * | | +-------------------------------------------------+ | | |
| 1322 | * | +---------------------------------------------------------+ | |
| 1323 | * +-------------------------------------------------------------+ |
| 1324 | */ |
| 1325 | |
| 1326 | /* Text entry box for search terms */ |
| 1327 | NW(entry); |
| 1328 | searchentry = gtk_entry_new(); |
| 1329 | g_signal_connect(searchentry, "changed", G_CALLBACK(searchentry_changed), 0); |
| 1330 | gtk_tooltips_set_tip(tips, searchentry, "Enter search terms here; search is automatic", ""); |
| 1331 | |
| 1332 | /* Cancel button to clear the search */ |
| 1333 | NW(button); |
| 1334 | clearsearch = gtk_button_new_from_stock(GTK_STOCK_CANCEL); |
| 1335 | g_signal_connect(G_OBJECT(clearsearch), "clicked", |
| 1336 | G_CALLBACK(clearsearch_clicked), 0); |
| 1337 | gtk_tooltips_set_tip(tips, clearsearch, "Clear search terms", ""); |
| 1338 | |
| 1339 | /* Up and down buttons to find previous/next results; initially they are not |
| 1340 | * usable as there are no search results. */ |
| 1341 | prevsearch = iconbutton("up.png", "Previous search result"); |
| 1342 | g_signal_connect(G_OBJECT(prevsearch), "clicked", |
| 1343 | G_CALLBACK(prev_clicked), 0); |
| 1344 | gtk_widget_set_sensitive(prevsearch, 0); |
| 1345 | nextsearch = iconbutton("down.png", "Next search result"); |
| 1346 | g_signal_connect(G_OBJECT(nextsearch), "clicked", |
| 1347 | G_CALLBACK(next_clicked), 0); |
| 1348 | gtk_widget_set_sensitive(nextsearch, 0); |
| 1349 | |
| 1350 | /* hbox packs the search tools button together on a line */ |
| 1351 | NW(hbox); |
| 1352 | hbox = gtk_hbox_new(FALSE/*homogeneous*/, 1/*spacing*/); |
| 1353 | gtk_box_pack_start(GTK_BOX(hbox), searchentry, |
| 1354 | TRUE/*expand*/, TRUE/*fill*/, 0/*padding*/); |
| 1355 | gtk_box_pack_start(GTK_BOX(hbox), prevsearch, |
| 1356 | FALSE/*expand*/, FALSE/*fill*/, 0/*padding*/); |
| 1357 | gtk_box_pack_start(GTK_BOX(hbox), nextsearch, |
| 1358 | FALSE/*expand*/, FALSE/*fill*/, 0/*padding*/); |
| 1359 | gtk_box_pack_start(GTK_BOX(hbox), clearsearch, |
| 1360 | FALSE/*expand*/, FALSE/*fill*/, 0/*padding*/); |
| 1361 | |
| 1362 | /* chooselayout contains the currently visible subset of the track |
| 1363 | * namespace */ |
| 1364 | NW(layout); |
| 1365 | chooselayout = gtk_layout_new(0, 0); |
| 1366 | choose_reset(); |
| 1367 | register_reset(choose_reset); |
| 1368 | /* Create the popup menus */ |
| 1369 | NW(menu); |
| 1370 | track_menu = gtk_menu_new(); |
| 1371 | g_signal_connect(track_menu, "destroy", G_CALLBACK(gtk_widget_destroyed), |
| 1372 | &track_menu); |
| 1373 | for(n = 0; track_menuitems[n].name; ++n) { |
| 1374 | NW(menu_item); |
| 1375 | track_menuitems[n].w = |
| 1376 | gtk_menu_item_new_with_label(track_menuitems[n].name); |
| 1377 | gtk_menu_attach(GTK_MENU(track_menu), track_menuitems[n].w, |
| 1378 | 0, 1, n, n + 1); |
| 1379 | } |
| 1380 | NW(menu); |
| 1381 | dir_menu = gtk_menu_new(); |
| 1382 | g_signal_connect(dir_menu, "destroy", G_CALLBACK(gtk_widget_destroyed), |
| 1383 | &dir_menu); |
| 1384 | for(n = 0; dir_menuitems[n].name; ++n) { |
| 1385 | NW(menu_item); |
| 1386 | dir_menuitems[n].w = |
| 1387 | gtk_menu_item_new_with_label(dir_menuitems[n].name); |
| 1388 | gtk_menu_attach(GTK_MENU(dir_menu), dir_menuitems[n].w, |
| 1389 | 0, 1, n, n + 1); |
| 1390 | } |
| 1391 | /* The layout is scrollable */ |
| 1392 | scrolled = scroll_widget(chooselayout, "choose"); |
| 1393 | vadjust = gtk_layout_get_vadjustment(GTK_LAYOUT(chooselayout)); |
| 1394 | |
| 1395 | /* The scrollable layout and the search hbox go together in a vbox */ |
| 1396 | NW(vbox); |
| 1397 | vbox = gtk_vbox_new(FALSE/*homogenous*/, 1/*spacing*/); |
| 1398 | gtk_box_pack_start(GTK_BOX(vbox), hbox, |
| 1399 | FALSE/*expand*/, FALSE/*fill*/, 0/*padding*/); |
| 1400 | gtk_box_pack_end(GTK_BOX(vbox), scrolled, |
| 1401 | TRUE/*expand*/, TRUE/*fill*/, 0/*padding*/); |
| 1402 | |
| 1403 | g_object_set_data(G_OBJECT(vbox), "type", (void *)&tabtype_choose); |
| 1404 | return vbox; |
| 1405 | } |
| 1406 | |
| 1407 | /** @brief Called when something we care about here might have changed */ |
| 1408 | void choose_update(void) { |
| 1409 | redisplay_tree(); |
| 1410 | } |
| 1411 | |
| 1412 | /* |
| 1413 | Local Variables: |
| 1414 | c-basic-offset:2 |
| 1415 | comment-column:40 |
| 1416 | fill-column:79 |
| 1417 | indent-tabs-mode:nil |
| 1418 | End: |
| 1419 | */ |