src/view_dir_tree.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2010 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13 #include "main.h"
  14 #include "view_dir_tree.h"
  15
  16
  17 #include "dnd.h"
  18 #include "dupe.h"
  19 #include "filedata.h"
  20 #include "layout.h"
  21 #include "layout_image.h"
  22 #include "layout_util.h"
  23 #include "utilops.h"
  24 #include "ui_fileops.h"
  25 #include "ui_menu.h"
  26 #include "ui_tree_edit.h"
  27 #include "view_dir.h"
  28
  29 #include <gdk/gdkkeysyms.h> /* for keyboard values */
  30
  31
  32 #define VDTREE(_vd_) ((ViewDirInfoTree *)(_vd_->info))
  33
  34
  35 typedef struct _PathData PathData;
  36 struct _PathData
  37 {
  38         gchar *name;
  39         FileData *node;
  40 };
  41
  42
  43 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data);
  44
  45
  46 /*
  47  *----------------------------------------------------------------------------
  48  * utils
  49  *----------------------------------------------------------------------------
  50  */
  51
  52 static void set_cursor(GtkWidget *widget, GdkCursorType cursor_type)
  53 {
  54         GdkCursor *cursor = NULL;
  55
  56         if (!widget || !widget->window) return;
  57
  58         if (cursor_type > -1) cursor = gdk_cursor_new(cursor_type);
  59         gdk_window_set_cursor(widget->window, cursor);
  60         if (cursor) gdk_cursor_unref(cursor);
  61         gdk_flush();
  62 }
  63
  64 static void vdtree_busy_push(ViewDir *vd)
  65 {
  66         if (VDTREE(vd)->busy_ref == 0) set_cursor(vd->view, GDK_WATCH);
  67         VDTREE(vd)->busy_ref++;
  68 }
  69
  70 static void vdtree_busy_pop(ViewDir *vd)
  71 {
  72         if (VDTREE(vd)->busy_ref == 1) set_cursor(vd->view, -1);
  73         if (VDTREE(vd)->busy_ref > 0) VDTREE(vd)->busy_ref--;
  74 }
  75
  76 gboolean vdtree_find_row(ViewDir *vd, FileData *fd, GtkTreeIter *iter, GtkTreeIter *parent)
  77 {
  78         GtkTreeModel *store;
  79         gboolean valid;
  80
  81         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
  82         if (parent)
  83                 {
  84                 valid = gtk_tree_model_iter_children(store, iter, parent);
  85                 }
  86         else
  87                 {
  88                 valid = gtk_tree_model_get_iter_first(store, iter);
  89                 }
  90         while (valid)
  91                 {
  92                 NodeData *nd;
  93                 GtkTreeIter found;
  94
  95                 gtk_tree_model_get(GTK_TREE_MODEL(store), iter, DIR_COLUMN_POINTER, &nd, -1);
  96                 if (nd->fd == fd) return TRUE;
  97
  98                 if (vdtree_find_row(vd, fd, &found, iter))
  99                         {
 100                         memcpy(iter, &found, sizeof(found));
 101                         return TRUE;
 102                         }
 103
 104                 valid = gtk_tree_model_iter_next(GTK_TREE_MODEL(store), iter);
 105                 }
 106
 107         return FALSE;
 108 }
 109
 110 static void vdtree_icon_set_by_iter(ViewDir *vd, GtkTreeIter *iter, GdkPixbuf *pixbuf)
 111 {
 112         GtkTreeModel *store;
 113         GdkPixbuf *old;
 114
 115         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 116         gtk_tree_model_get(store, iter, DIR_COLUMN_ICON, &old, -1);
 117         if (old != vd->pf->deny)
 118                 {
 119                 gtk_tree_store_set(GTK_TREE_STORE(store), iter, DIR_COLUMN_ICON, pixbuf, -1);
 120                 }
 121 }
 122
 123 static void vdtree_expand_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean expand)
 124 {
 125         GtkTreeModel *store;
 126         GtkTreePath *tpath;
 127
 128         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 129         tpath = gtk_tree_model_get_path(store, iter);
 130
 131         if (expand)
 132                 {
 133                 /* block signal handler, icon is set here, the caller of vdtree_expand_by_iter must make sure
 134                    that the iter is populated */
 135                 g_signal_handlers_block_by_func(G_OBJECT(vd->view), vdtree_row_expanded, vd);
 136                 gtk_tree_view_expand_row(GTK_TREE_VIEW(vd->view), tpath, FALSE);
 137                 vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 138                 g_signal_handlers_unblock_by_func(G_OBJECT(vd->view), vdtree_row_expanded, vd);
 139                 }
 140         else
 141                 {
 142                 /* signal handler vdtree_row_collapsed is called, it updates the icon */
 143                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(vd->view), tpath);
 144                 }
 145         gtk_tree_path_free(tpath);
 146 }
 147
 148 static void vdtree_expand_by_data(ViewDir *vd, FileData *fd, gboolean expand)
 149 {
 150         GtkTreeIter iter;
 151
 152         if (vd_find_row(vd, fd, &iter))
 153                 {
 154                 vdtree_expand_by_iter(vd, &iter, expand);
 155                 }
 156 }
 157
 158 static void vdtree_node_free(NodeData *nd)
 159 {
 160         if (!nd) return;
 161
 162         if (nd->fd) file_data_unref(nd->fd);
 163         g_free(nd);
 164 }
 165
 166 /*
 167  *----------------------------------------------------------------------------
 168  * dnd
 169  *----------------------------------------------------------------------------
 170  */
 171
 172 static gboolean vdtree_dnd_drop_expand_cb(gpointer data)
 173 {
 174         ViewDir *vd = data;
 175         GtkTreeIter iter;
 176
 177         if (vd->drop_fd && vd_find_row(vd, vd->drop_fd, &iter))
 178                 {
 179                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 180                 vdtree_expand_by_data(vd, vd->drop_fd, TRUE);
 181                 }
 182
 183         VDTREE(vd)->drop_expand_id = 0;
 184         return FALSE;
 185 }
 186
 187 static void vdtree_dnd_drop_expand_cancel(ViewDir *vd)
 188 {
 189         if (VDTREE(vd)->drop_expand_id)
 190                 {
 191                 g_source_remove(VDTREE(vd)->drop_expand_id);
 192                 VDTREE(vd)->drop_expand_id = 0;
 193                 }
 194 }
 195
 196 static void vdtree_dnd_drop_expand(ViewDir *vd)
 197 {
 198         vdtree_dnd_drop_expand_cancel(vd);
 199         VDTREE(vd)->drop_expand_id = g_timeout_add(1000, vdtree_dnd_drop_expand_cb, vd);
 200 }
 201
 202 /*
 203  *----------------------------------------------------------------------------
 204  * parts lists
 205  *----------------------------------------------------------------------------
 206  */
 207
 208 static GList *parts_list(const gchar *path)
 209 {
 210         GList *list = NULL;
 211         const gchar *strb, *strp;
 212         gint l;
 213
 214         strp = path;
 215
 216         if (*strp != G_DIR_SEPARATOR) return NULL;
 217
 218         strp++;
 219         strb = strp;
 220         l = 0;
 221
 222         while (*strp != '\0')
 223                 {
 224                 if (*strp == G_DIR_SEPARATOR)
 225                         {
 226                         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 227                         strp++;
 228                         strb = strp;
 229                         l = 0;
 230                         }
 231                 else
 232                         {
 233                         strp++;
 234                         l++;
 235                         }
 236                 }
 237         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 238
 239         list = g_list_reverse(list);
 240
 241         list = g_list_prepend(list, g_strdup(G_DIR_SEPARATOR_S));
 242
 243         return list;
 244 }
 245
 246 static void parts_list_free(GList *list)
 247 {
 248         GList *work = list;
 249         while (work)
 250                 {
 251                 PathData *pd = work->data;
 252                 g_free(pd->name);
 253                 g_free(pd);
 254                 work = work->next;
 255                 }
 256
 257         g_list_free(list);
 258 }
 259
 260 static GList *parts_list_add_node_points(ViewDir *vd, GList *list)
 261 {
 262         GList *work;
 263         GtkTreeModel *store;
 264         GtkTreeIter iter;
 265         gboolean valid;
 266
 267         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 268         valid = gtk_tree_model_get_iter_first(store, &iter);
 269
 270         work = list;
 271         while (work)
 272                 {
 273                 PathData *pd;
 274                 FileData *fd = NULL;
 275
 276                 pd = g_new0(PathData, 1);
 277                 pd->name = work->data;
 278
 279                 while (valid && !fd)
 280                         {
 281                         NodeData *nd;
 282
 283                         gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 284                         if (nd->fd && strcmp(nd->fd->name, pd->name) == 0)
 285                                 {
 286                                 fd = nd->fd;
 287                                 }
 288                         else
 289                                 {
 290                                 valid = gtk_tree_model_iter_next(store, &iter);
 291                                 }
 292                         }
 293
 294                 pd->node = fd;
 295                 work->data = pd;
 296
 297                 if (fd)
 298                         {
 299                         GtkTreeIter parent;
 300                         memcpy(&parent, &iter, sizeof(parent));
 301                         valid = gtk_tree_model_iter_children(store, &iter, &parent);
 302                         }
 303
 304                 work = work->next;
 305                 }
 306
 307         return list;
 308 }
 309
 310 /*
 311  *----------------------------------------------------------------------------
 312  * misc
 313  *----------------------------------------------------------------------------
 314  */
 315
 316 #if 0
 317 static void vdtree_row_deleted_cb(GtkTreeModel *tree_model, GtkTreePath *tpath, gpointer data)
 318 {
 319         GtkTreeIter iter;
 320         NodeData *nd;
 321
 322         gtk_tree_model_get_iter(tree_model, &iter, tpath);
 323         gtk_tree_model_get(tree_model, &iter, DIR_COLUMN_POINTER, &nd, -1);
 324
 325         if (!nd) return;
 326
 327         file_data_unref(nd->fd);
 328         g_free(nd);
 329 }
 330 #endif
 331
 332 /*
 333  *----------------------------------------------------------------------------
 334  * node traversal, management
 335  *----------------------------------------------------------------------------
 336  */
 337
 338 static gboolean vdtree_find_iter_by_data(ViewDir *vd, GtkTreeIter *parent, NodeData *nd, GtkTreeIter *iter)
 339 {
 340         GtkTreeModel *store;
 341
 342         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 343         if (!nd || !gtk_tree_model_iter_children(store, iter, parent)) return -1;
 344         do      {
 345                 NodeData *cnd;
 346
 347                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &cnd, -1);
 348                 if (cnd == nd) return TRUE;
 349                 } while (gtk_tree_model_iter_next(store, iter));
 350
 351         return FALSE;
 352 }
 353
 354 static NodeData *vdtree_find_iter_by_name(ViewDir *vd, GtkTreeIter *parent, const gchar *name, GtkTreeIter *iter)
 355 {
 356         GtkTreeModel *store;
 357
 358         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 359         if (!name || !gtk_tree_model_iter_children(store, iter, parent)) return NULL;
 360         do      {
 361                 NodeData *nd;
 362
 363                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 364                 if (nd && strcmp(nd->fd->name, name) == 0) return nd;
 365                 } while (gtk_tree_model_iter_next(store, iter));
 366
 367         return NULL;
 368 }
 369
 370 static NodeData *vdtree_find_iter_by_fd(ViewDir *vd, GtkTreeIter *parent, FileData *fd, GtkTreeIter *iter)
 371 {
 372         GtkTreeModel *store;
 373
 374         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 375         if (!fd || !gtk_tree_model_iter_children(store, iter, parent)) return NULL;
 376         do      {
 377                 NodeData *nd;
 378
 379                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 380                 if (nd && nd->fd == fd) return nd;
 381                 } while (gtk_tree_model_iter_next(store, iter));
 382
 383         return NULL;
 384 }
 385
 386 static void vdtree_add_by_data(ViewDir *vd, FileData *fd, GtkTreeIter *parent)
 387 {
 388         GtkTreeStore *store;
 389         GtkTreeIter child;
 390         NodeData *nd;
 391         GdkPixbuf *pixbuf;
 392         NodeData *end;
 393         GtkTreeIter empty;
 394
 395         if (!fd) return;
 396
 397         if (access_file(fd->path, R_OK | X_OK))
 398                 {
 399                 pixbuf = vd->pf->close;
 400                 }
 401         else
 402                 {
 403                 pixbuf = vd->pf->deny;
 404                 }
 405
 406         nd = g_new0(NodeData, 1);
 407         nd->fd = fd;
 408         nd->version = fd->version;
 409         nd->expanded = FALSE;
 410         nd->last_update = time(NULL);
 411
 412         store = GTK_TREE_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view)));
 413         gtk_tree_store_append(store, &child, parent);
 414         gtk_tree_store_set(store, &child, DIR_COLUMN_POINTER, nd,
 415                                          DIR_COLUMN_ICON, pixbuf,
 416                                          DIR_COLUMN_NAME, nd->fd->name,
 417                                          DIR_COLUMN_COLOR, FALSE, -1);
 418
 419         /* all nodes are created with an "empty" node, so that the expander is shown
 420          * this is removed when the child is populated */
 421         end = g_new0(NodeData, 1);
 422         end->fd = NULL;
 423         end->expanded = TRUE;
 424
 425         gtk_tree_store_append(store, &empty, &child);
 426         gtk_tree_store_set(store, &empty, DIR_COLUMN_POINTER, end,
 427                                           DIR_COLUMN_NAME, "empty", -1);
 428
 429         if (parent)
 430                 {
 431                 NodeData *pnd;
 432                 GtkTreePath *tpath;
 433
 434                 gtk_tree_model_get(GTK_TREE_MODEL(store), parent, DIR_COLUMN_POINTER, &pnd, -1);
 435                 tpath = gtk_tree_model_get_path(GTK_TREE_MODEL(store), parent);
 436                 if (options->tree_descend_subdirs &&
 437                     gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath) &&
 438                     !nd->expanded)
 439                         {
 440                         vdtree_populate_path_by_iter(vd, &child, FALSE, vd->dir_fd);
 441                         }
 442                 gtk_tree_path_free(tpath);
 443                 }
 444 }
 445
 446 gboolean vdtree_populate_path_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean force, FileData *target_fd)
 447 {
 448         GtkTreeModel *store;
 449         GList *list;
 450         GList *work;
 451         GList *old;
 452         time_t current_time;
 453         GtkTreeIter child;
 454         NodeData *nd;
 455
 456         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 457         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 458
 459         if (!nd) return FALSE;
 460
 461         current_time = time(NULL);
 462
 463         if (nd->expanded)
 464                 {
 465                 if (!nd->fd || !isdir(nd->fd->path))
 466                         {
 467                         if (vd->click_fd == nd->fd) vd->click_fd = NULL;
 468                         if (vd->drop_fd == nd->fd) vd->drop_fd = NULL;
 469                         gtk_tree_store_remove(GTK_TREE_STORE(store), iter);
 470                         vdtree_node_free(nd);
 471                         return FALSE;
 472                         }
 473                 if (!force && current_time - nd->last_update < 2)
 474                         {
 475                         DEBUG_1("Too frequent update of %s", nd->fd->path);
 476                         return TRUE;
 477                         }
 478                 if (nd->fd->version == nd->version) return TRUE;
 479                 }
 480
 481         vdtree_busy_push(vd);
 482
 483         filelist_read(nd->fd, NULL, &list);
 484
 485         /* when hidden files are not enabled, and the user enters a hidden path,
 486          * allow the tree to display that path by specifically inserting the hidden entries
 487          */
 488         if (!options->file_filter.show_hidden_files &&
 489             target_fd &&
 490             strncmp(nd->fd->path, target_fd->path, strlen(nd->fd->path)) == 0)
 491                 {
 492                 gint n;
 493
 494                 n = strlen(nd->fd->path);
 495                 if (target_fd->path[n] == G_DIR_SEPARATOR && target_fd->path[n+1] == '.')
 496                         {
 497                         gchar *name8;
 498
 499                         n++;
 500
 501                         while (target_fd->path[n] != '\0' && target_fd->path[n] != G_DIR_SEPARATOR) n++;
 502                         name8 = g_strndup(target_fd->path, n);
 503
 504                         if (isdir(name8))
 505                                 {
 506                                 list = g_list_prepend(list, file_data_new_dir(name8));
 507                                 }
 508
 509                         g_free(name8);
 510                         }
 511                 }
 512
 513         old = NULL;
 514         if (gtk_tree_model_iter_children(store, &child, iter))
 515                 {
 516                 do      {
 517                         NodeData *cnd;
 518
 519                         gtk_tree_model_get(store, &child, DIR_COLUMN_POINTER, &cnd, -1);
 520                         old = g_list_prepend(old, cnd);
 521                         } while (gtk_tree_model_iter_next(store, &child));
 522                 }
 523
 524         work = list;
 525         while (work)
 526                 {
 527                 FileData *fd;
 528
 529                 fd = work->data;
 530                 work = work->next;
 531
 532                 if (strcmp(fd->name, ".") == 0 || strcmp(fd->name, "..") == 0)
 533                         {
 534                         file_data_unref(fd);
 535                         }
 536                 else
 537                         {
 538                         NodeData *cnd;
 539
 540                         cnd = vdtree_find_iter_by_fd(vd, iter, fd, &child);
 541                         if (cnd)
 542                                 {
 543                                 if (cnd->expanded && cnd->version != fd->version)
 544                                         {
 545                                         vdtree_populate_path_by_iter(vd, &child, FALSE, target_fd);
 546                                         }
 547
 548                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_NAME, fd->name, -1);
 549                                 cnd->version = fd->version;
 550                                 old = g_list_remove(old, cnd);
 551                                 file_data_unref(fd);
 552                                 }
 553                         else
 554                                 {
 555                                 vdtree_add_by_data(vd, fd, iter);
 556                                 }
 557                         }
 558                 }
 559
 560         work = old;
 561         while (work)
 562                 {
 563                 NodeData *cnd = work->data;
 564                 work = work->next;
 565
 566                 if (vd->click_fd == cnd->fd) vd->click_fd = NULL;
 567                 if (vd->drop_fd == cnd->fd) vd->drop_fd = NULL;
 568
 569                 if (vdtree_find_iter_by_data(vd, iter, cnd, &child))
 570                         {
 571                         gtk_tree_store_remove(GTK_TREE_STORE(store), &child);
 572                         vdtree_node_free(cnd);
 573                         }
 574                 }
 575
 576         g_list_free(old);
 577         g_list_free(list);
 578
 579         vdtree_busy_pop(vd);
 580
 581         nd->expanded = TRUE;
 582         nd->last_update = current_time;
 583
 584         return TRUE;
 585 }
 586
 587 FileData *vdtree_populate_path(ViewDir *vd, FileData *target_fd, gboolean expand, gboolean force)
 588 {
 589         GList *list;
 590         GList *work;
 591         FileData *fd = NULL;
 592
 593         if (!target_fd) return NULL;
 594
 595         vdtree_busy_push(vd);
 596
 597         list = parts_list(target_fd->path);
 598         list = parts_list_add_node_points(vd, list);
 599
 600         work = list;
 601         while (work)
 602                 {
 603                 PathData *pd = work->data;
 604                 if (pd->node == NULL)
 605                         {
 606                         PathData *parent_pd;
 607                         GtkTreeIter parent_iter;
 608                         GtkTreeIter iter;
 609                         NodeData *nd;
 610
 611                         if (work == list)
 612                                 {
 613                                 /* should not happen */
 614                                 log_printf("vdtree warning, root node not found\n");
 615                                 parts_list_free(list);
 616                                 vdtree_busy_pop(vd);
 617                                 return NULL;
 618                                 }
 619
 620                         parent_pd = work->prev->data;
 621
 622                         if (!vd_find_row(vd, parent_pd->node, &parent_iter) ||
 623                             !vdtree_populate_path_by_iter(vd, &parent_iter, force, target_fd) ||
 624                             (nd = vdtree_find_iter_by_name(vd, &parent_iter, pd->name, &iter)) == NULL)
 625                                 {
 626                                 log_printf("vdtree warning, aborted at %s\n", parent_pd->name);
 627                                 parts_list_free(list);
 628                                 vdtree_busy_pop(vd);
 629                                 return NULL;
 630                                 }
 631
 632                         pd->node = nd->fd;
 633
 634                         if (pd->node)
 635                                 {
 636                                 if (expand)
 637                                         {
 638                                         vdtree_expand_by_iter(vd, &parent_iter, TRUE);
 639                                         vdtree_expand_by_iter(vd, &iter, TRUE);
 640                                         }
 641                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 642                                 }
 643                         }
 644                 else
 645                         {
 646                         GtkTreeIter iter;
 647
 648                         if (vd_find_row(vd, pd->node, &iter))
 649                                 {
 650                                 if (expand) vdtree_expand_by_iter(vd, &iter, TRUE);
 651                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 652                                 }
 653                         }
 654
 655                 work = work->next;
 656                 }
 657
 658         work = g_list_last(list);
 659         if (work)
 660                 {
 661                 PathData *pd = work->data;
 662                 fd = pd->node;
 663                 }
 664         parts_list_free(list);
 665
 666         vdtree_busy_pop(vd);
 667
 668         return fd;
 669 }
 670
 671 /*
 672  *----------------------------------------------------------------------------
 673  * access
 674  *----------------------------------------------------------------------------
 675  */
 676
 677 static gboolean selection_is_ok = FALSE;
 678
 679 static gboolean vdtree_select_cb(GtkTreeSelection *selection, GtkTreeModel *store, GtkTreePath *tpath,
 680                                  gboolean path_currently_selected, gpointer data)
 681 {
 682         return selection_is_ok;
 683 }
 684
 685 gboolean vdtree_set_fd(ViewDir *vd, FileData *dir_fd)
 686 {
 687         FileData *fd;
 688         GtkTreeIter iter;
 689
 690         if (!dir_fd) return FALSE;
 691         if (vd->dir_fd == dir_fd) return TRUE;
 692
 693         file_data_unref(vd->dir_fd);
 694         vd->dir_fd = file_data_ref(dir_fd);;
 695
 696         fd = vdtree_populate_path(vd, vd->dir_fd, TRUE, FALSE);
 697
 698         if (!fd) return FALSE;
 699
 700         if (vd_find_row(vd, fd, &iter))
 701                 {
 702                 GtkTreeModel *store;
 703                 GtkTreePath *tpath, *old_tpath;
 704                 GtkTreeSelection *selection;
 705
 706                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 707
 708                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 709
 710                 /* hack, such that selection is only allowed to be changed from here */
 711                 selection_is_ok = TRUE;
 712                 gtk_tree_selection_select_iter(selection, &iter);
 713                 selection_is_ok = FALSE;
 714
 715                 gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &old_tpath, NULL);
 716                 tpath = gtk_tree_model_get_path(store, &iter);
 717
 718                 if (!old_tpath || gtk_tree_path_compare(tpath, old_tpath) != 0)
 719                         {
 720                         /* setting the cursor scrolls the view; do not do that unless it is necessary */
 721                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(vd->view), tpath, NULL, FALSE);
 722
 723                         /* gtk_tree_view_set_cursor scrolls the window itself, but it sometimes
 724                            does not work (switch from dir_list to dir_tree) */
 725                         tree_view_row_make_visible(GTK_TREE_VIEW(vd->view), &iter, TRUE);
 726                         }
 727                 gtk_tree_path_free(tpath);
 728                 gtk_tree_path_free(old_tpath);
 729                 }
 730
 731         return TRUE;
 732 }
 733
 734 #if 0
 735 const gchar *vdtree_get_path(ViewDir *vd)
 736 {
 737         return vd->path;
 738 }
 739 #endif
 740
 741 void vdtree_refresh(ViewDir *vd)
 742 {
 743         vdtree_populate_path(vd, vd->dir_fd, FALSE, TRUE);
 744 }
 745
 746 const gchar *vdtree_row_get_path(ViewDir *vd, gint row)
 747 {
 748         log_printf("FIXME: no get row path\n");
 749         return NULL;
 750 }
 751
 752 /*
 753  *----------------------------------------------------------------------------
 754  * callbacks
 755  *----------------------------------------------------------------------------
 756  */
 757
 758 gboolean vdtree_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 759 {
 760         ViewDir *vd = data;
 761         GtkTreePath *tpath;
 762         GtkTreeIter iter;
 763         FileData *fd = NULL;
 764
 765         gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &tpath, NULL);
 766         if (tpath)
 767                 {
 768                 GtkTreeModel *store;
 769                 NodeData *nd;
 770
 771                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 772                 gtk_tree_model_get_iter(store, &iter, tpath);
 773                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 774
 775                 gtk_tree_path_free(tpath);
 776
 777                 fd = (nd) ? nd->fd : NULL;
 778                 }
 779
 780         switch (event->keyval)
 781                 {
 782                 case GDK_Menu:
 783                         vd->click_fd = fd;
 784                         vd_color_set(vd, vd->click_fd, TRUE);
 785
 786                         vd->popup = vd_pop_menu(vd, vd->click_fd);
 787                         gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, vd_menu_position_cb, vd, 0, GDK_CURRENT_TIME);
 788
 789                         return TRUE;
 790                         break;
 791                 case GDK_plus:
 792                 case GDK_Right:
 793                 case GDK_KP_Add:
 794                         if (fd)
 795                                 {
 796                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 797                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 798                                 }
 799                         break;
 800                 }
 801
 802         return FALSE;
 803 }
 804
 805 static gboolean vdtree_clicked_on_expander(GtkTreeView *treeview, GtkTreePath *tpath,
 806                                            GtkTreeViewColumn *column, gint x, gint y, gint *left_of_expander)
 807 {
 808         gint depth;
 809         gint size;
 810         gint sep;
 811         gint exp_width;
 812
 813         if (column != gtk_tree_view_get_expander_column(treeview)) return FALSE;
 814
 815         gtk_widget_style_get(GTK_WIDGET(treeview), "expander-size", &size, "horizontal-separator", &sep, NULL);
 816         depth = gtk_tree_path_get_depth(tpath);
 817
 818         exp_width = sep + size + sep;
 819
 820         if (x <= depth * exp_width)
 821                 {
 822                 if (left_of_expander) *left_of_expander = !(x >= (depth - 1) * exp_width);
 823                 return TRUE;
 824                 }
 825
 826         return FALSE;
 827 }
 828
 829 gboolean vdtree_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
 830 {
 831         ViewDir *vd = data;
 832         GtkTreePath *tpath;
 833         GtkTreeViewColumn *column;
 834         GtkTreeIter iter;
 835         NodeData *nd = NULL;
 836
 837         if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
 838                                           &tpath, &column, NULL, NULL))
 839                 {
 840                 GtkTreeModel *store;
 841                 gint left_of_expander;
 842
 843                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 844                 gtk_tree_model_get_iter(store, &iter, tpath);
 845                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 846                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(widget), tpath, NULL, FALSE);
 847
 848                 if (vdtree_clicked_on_expander(GTK_TREE_VIEW(widget), tpath, column, bevent->x, bevent->y, &left_of_expander))
 849                         {
 850                         vd->click_fd = NULL;
 851
 852                         /* clicking this region should automatically reveal an expander, if necessary
 853                          * treeview bug: the expander will not expand until a button_motion_event highlights it.
 854                          */
 855                         if (bevent->button == MOUSE_BUTTON_LEFT &&
 856                             !left_of_expander &&
 857                             !gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath))
 858                                 {
 859                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 860                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 861                                 }
 862
 863                         gtk_tree_path_free(tpath);
 864                         return FALSE;
 865                         }
 866
 867                 gtk_tree_path_free(tpath);
 868                 }
 869
 870         vd->click_fd = (nd) ? nd->fd : NULL;
 871         vd_color_set(vd, vd->click_fd, TRUE);
 872
 873         if (bevent->button == MOUSE_BUTTON_RIGHT)
 874                 {
 875                 vd->popup = vd_pop_menu(vd, vd->click_fd);
 876                 gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, NULL, NULL,
 877                                bevent->button, bevent->time);
 878                 }
 879
 880         return (bevent->button != MOUSE_BUTTON_LEFT);
 881 }
 882
 883 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 884 {
 885         ViewDir *vd = data;
 886
 887         vdtree_populate_path_by_iter(vd, iter, FALSE, NULL);
 888         vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 889 }
 890
 891 static void vdtree_row_collapsed(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 892 {
 893         ViewDir *vd = data;
 894
 895         vdtree_icon_set_by_iter(vd, iter, vd->pf->close);
 896 }
 897
 898 static gint vdtree_sort_cb(GtkTreeModel *store, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 899 {
 900         NodeData *nda;
 901         NodeData *ndb;
 902
 903         gtk_tree_model_get(store, a, DIR_COLUMN_POINTER, &nda, -1);
 904         gtk_tree_model_get(store, b, DIR_COLUMN_POINTER, &ndb, -1);
 905
 906         if (!nda->fd && !ndb->fd) return 0;
 907         if (!nda->fd) return 1;
 908         if (!ndb->fd) return -1;
 909
 910         if (options->file_sort.case_sensitive)
 911                 return strcmp(nda->fd->collate_key_name, ndb->fd->collate_key_name);
 912         else
 913                 return strcmp(nda->fd->collate_key_name_nocase, ndb->fd->collate_key_name_nocase);
 914 }
 915
 916 /*
 917  *----------------------------------------------------------------------------
 918  * core
 919  *----------------------------------------------------------------------------
 920  */
 921
 922 static void vdtree_setup_root(ViewDir *vd)
 923 {
 924         const gchar *path = G_DIR_SEPARATOR_S;
 925         FileData *fd;
 926
 927
 928         fd = file_data_new_dir(path);
 929         vdtree_add_by_data(vd, fd, NULL);
 930
 931         vdtree_expand_by_data(vd, fd, TRUE);
 932         vdtree_populate_path(vd, fd, FALSE, FALSE);
 933 }
 934
 935 static gboolean vdtree_destroy_node_cb(GtkTreeModel *store, GtkTreePath *tpath, GtkTreeIter *iter, gpointer data)
 936 {
 937         NodeData *nd;
 938
 939         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 940         vdtree_node_free(nd);
 941
 942         return FALSE;
 943 }
 944
 945 void vdtree_destroy_cb(GtkWidget *widget, gpointer data)
 946 {
 947         ViewDir *vd = data;
 948         GtkTreeModel *store;
 949
 950         vdtree_dnd_drop_expand_cancel(vd);
 951         vd_dnd_drop_scroll_cancel(vd);
 952         widget_auto_scroll_stop(vd->view);
 953
 954         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 955         gtk_tree_model_foreach(store, vdtree_destroy_node_cb, vd);
 956 }
 957
 958 ViewDir *vdtree_new(ViewDir *vd, FileData *dir_fd)
 959 {
 960         GtkTreeStore *store;
 961         GtkTreeSelection *selection;
 962         GtkTreeViewColumn *column;
 963         GtkCellRenderer *renderer;
 964
 965         vd->info = g_new0(ViewDirInfoTree, 1);
 966
 967         vd->type = DIRVIEW_TREE;
 968
 969         vd->dnd_drop_leave_func = vdtree_dnd_drop_expand_cancel;
 970         vd->dnd_drop_update_func = vdtree_dnd_drop_expand;
 971
 972         store = gtk_tree_store_new(4, G_TYPE_POINTER, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_INT);
 973         vd->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 974         g_object_unref(store);
 975
 976         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(vd->view), FALSE);
 977         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(vd->view), FALSE);
 978         gtk_tree_sortable_set_default_sort_func(GTK_TREE_SORTABLE(store), vdtree_sort_cb, vd, NULL);
 979         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(store),
 980                                              GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, GTK_SORT_ASCENDING);
 981
 982         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 983         gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
 984         gtk_tree_selection_set_select_function(selection, vdtree_select_cb, vd, NULL);
 985
 986         column = gtk_tree_view_column_new();
 987         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 988
 989         renderer = gtk_cell_renderer_pixbuf_new();
 990         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 991         gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", DIR_COLUMN_ICON);
 992         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 993
 994         renderer = gtk_cell_renderer_text_new();
 995         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 996         gtk_tree_view_column_add_attribute(column, renderer, "text", DIR_COLUMN_NAME);
 997         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 998
 999         gtk_tree_view_append_column(GTK_TREE_VIEW(vd->view), column);
1000
1001         vdtree_setup_root(vd);
1002
1003         g_signal_connect(G_OBJECT(vd->view), "row_expanded",
1004                          G_CALLBACK(vdtree_row_expanded), vd);
1005         g_signal_connect(G_OBJECT(vd->view), "row_collapsed",
1006                          G_CALLBACK(vdtree_row_collapsed), vd);
1007
1008         return vd;
1009 }
1010 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */