src/view_dir_tree.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2012 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 || !gtk_widget_get_window(widget)) return;
  57
  58         if (cursor_type > -1) cursor = gdk_cursor_new(cursor_type);
  59         gdk_window_set_cursor(gtk_widget_get_window(widget), 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                 file_data_check_changed_files(nd->fd); /* make sure we have recent info */
 479                 if (nd->fd->version == nd->version) return TRUE;
 480                 }
 481
 482         vdtree_busy_push(vd);
 483
 484         filelist_read(nd->fd, NULL, &list);
 485
 486         /* when hidden files are not enabled, and the user enters a hidden path,
 487          * allow the tree to display that path by specifically inserting the hidden entries
 488          */
 489         if (!options->file_filter.show_hidden_files &&
 490             target_fd &&
 491             strncmp(nd->fd->path, target_fd->path, strlen(nd->fd->path)) == 0)
 492                 {
 493                 gint n;
 494
 495                 n = strlen(nd->fd->path);
 496                 if (target_fd->path[n] == G_DIR_SEPARATOR && target_fd->path[n+1] == '.')
 497                         {
 498                         gchar *name8;
 499
 500                         n++;
 501
 502                         while (target_fd->path[n] != '\0' && target_fd->path[n] != G_DIR_SEPARATOR) n++;
 503                         name8 = g_strndup(target_fd->path, n);
 504
 505                         if (isdir(name8))
 506                                 {
 507                                 list = g_list_prepend(list, file_data_new_dir(name8));
 508                                 }
 509
 510                         g_free(name8);
 511                         }
 512                 }
 513
 514         old = NULL;
 515         if (gtk_tree_model_iter_children(store, &child, iter))
 516                 {
 517                 do      {
 518                         NodeData *cnd;
 519
 520                         gtk_tree_model_get(store, &child, DIR_COLUMN_POINTER, &cnd, -1);
 521                         old = g_list_prepend(old, cnd);
 522                         } while (gtk_tree_model_iter_next(store, &child));
 523                 }
 524
 525         work = list;
 526         while (work)
 527                 {
 528                 FileData *fd;
 529
 530                 fd = work->data;
 531                 work = work->next;
 532
 533                 if (strcmp(fd->name, ".") == 0 || strcmp(fd->name, "..") == 0)
 534                         {
 535                         file_data_unref(fd);
 536                         }
 537                 else
 538                         {
 539                         NodeData *cnd;
 540
 541                         cnd = vdtree_find_iter_by_fd(vd, iter, fd, &child);
 542                         if (cnd)
 543                                 {
 544                                 if (cnd->expanded && cnd->version != fd->version)
 545                                         {
 546                                         vdtree_populate_path_by_iter(vd, &child, FALSE, target_fd);
 547                                         }
 548
 549                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_NAME, fd->name, -1);
 550                                 cnd->version = fd->version;
 551                                 old = g_list_remove(old, cnd);
 552                                 file_data_unref(fd);
 553                                 }
 554                         else
 555                                 {
 556                                 vdtree_add_by_data(vd, fd, iter);
 557                                 }
 558                         }
 559                 }
 560
 561         work = old;
 562         while (work)
 563                 {
 564                 NodeData *cnd = work->data;
 565                 work = work->next;
 566
 567                 if (vd->click_fd == cnd->fd) vd->click_fd = NULL;
 568                 if (vd->drop_fd == cnd->fd) vd->drop_fd = NULL;
 569
 570                 if (vdtree_find_iter_by_data(vd, iter, cnd, &child))
 571                         {
 572                         gtk_tree_store_remove(GTK_TREE_STORE(store), &child);
 573                         vdtree_node_free(cnd);
 574                         }
 575                 }
 576
 577         g_list_free(old);
 578         g_list_free(list);
 579
 580         vdtree_busy_pop(vd);
 581
 582         nd->expanded = TRUE;
 583         nd->last_update = current_time;
 584
 585         return TRUE;
 586 }
 587
 588 FileData *vdtree_populate_path(ViewDir *vd, FileData *target_fd, gboolean expand, gboolean force)
 589 {
 590         GList *list;
 591         GList *work;
 592         FileData *fd = NULL;
 593
 594         if (!target_fd) return NULL;
 595
 596         vdtree_busy_push(vd);
 597
 598         list = parts_list(target_fd->path);
 599         list = parts_list_add_node_points(vd, list);
 600
 601         work = list;
 602         while (work)
 603                 {
 604                 PathData *pd = work->data;
 605                 if (pd->node == NULL)
 606                         {
 607                         PathData *parent_pd;
 608                         GtkTreeIter parent_iter;
 609                         GtkTreeIter iter;
 610                         NodeData *nd;
 611
 612                         if (work == list)
 613                                 {
 614                                 /* should not happen */
 615                                 log_printf("vdtree warning, root node not found\n");
 616                                 parts_list_free(list);
 617                                 vdtree_busy_pop(vd);
 618                                 return NULL;
 619                                 }
 620
 621                         parent_pd = work->prev->data;
 622
 623                         if (!vd_find_row(vd, parent_pd->node, &parent_iter) ||
 624                             !vdtree_populate_path_by_iter(vd, &parent_iter, force, target_fd) ||
 625                             (nd = vdtree_find_iter_by_name(vd, &parent_iter, pd->name, &iter)) == NULL)
 626                                 {
 627                                 log_printf("vdtree warning, aborted at %s\n", parent_pd->name);
 628                                 parts_list_free(list);
 629                                 vdtree_busy_pop(vd);
 630                                 return NULL;
 631                                 }
 632
 633                         pd->node = nd->fd;
 634
 635                         if (pd->node)
 636                                 {
 637                                 if (expand)
 638                                         {
 639                                         vdtree_expand_by_iter(vd, &parent_iter, TRUE);
 640                                         vdtree_expand_by_iter(vd, &iter, TRUE);
 641                                         }
 642                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 643                                 }
 644                         }
 645                 else
 646                         {
 647                         GtkTreeIter iter;
 648
 649                         if (vd_find_row(vd, pd->node, &iter))
 650                                 {
 651                                 if (expand) vdtree_expand_by_iter(vd, &iter, TRUE);
 652                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 653                                 }
 654                         }
 655
 656                 work = work->next;
 657                 }
 658
 659         work = g_list_last(list);
 660         if (work)
 661                 {
 662                 PathData *pd = work->data;
 663                 fd = pd->node;
 664                 }
 665         parts_list_free(list);
 666
 667         vdtree_busy_pop(vd);
 668
 669         return fd;
 670 }
 671
 672 /*
 673  *----------------------------------------------------------------------------
 674  * access
 675  *----------------------------------------------------------------------------
 676  */
 677
 678 static gboolean selection_is_ok = FALSE;
 679
 680 static gboolean vdtree_select_cb(GtkTreeSelection *selection, GtkTreeModel *store, GtkTreePath *tpath,
 681                                  gboolean path_currently_selected, gpointer data)
 682 {
 683         return selection_is_ok;
 684 }
 685
 686 gboolean vdtree_set_fd(ViewDir *vd, FileData *dir_fd)
 687 {
 688         FileData *fd;
 689         GtkTreeIter iter;
 690
 691         if (!dir_fd) return FALSE;
 692         if (vd->dir_fd == dir_fd) return TRUE;
 693
 694         file_data_unref(vd->dir_fd);
 695         vd->dir_fd = file_data_ref(dir_fd);;
 696
 697         fd = vdtree_populate_path(vd, vd->dir_fd, TRUE, FALSE);
 698
 699         if (!fd) return FALSE;
 700
 701         if (vd_find_row(vd, fd, &iter))
 702                 {
 703                 GtkTreeModel *store;
 704                 GtkTreePath *tpath, *old_tpath;
 705                 GtkTreeSelection *selection;
 706
 707                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 708
 709                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 710
 711                 /* hack, such that selection is only allowed to be changed from here */
 712                 selection_is_ok = TRUE;
 713                 gtk_tree_selection_select_iter(selection, &iter);
 714                 selection_is_ok = FALSE;
 715
 716                 gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &old_tpath, NULL);
 717                 tpath = gtk_tree_model_get_path(store, &iter);
 718
 719                 if (!old_tpath || gtk_tree_path_compare(tpath, old_tpath) != 0)
 720                         {
 721                         /* setting the cursor scrolls the view; do not do that unless it is necessary */
 722                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(vd->view), tpath, NULL, FALSE);
 723
 724                         /* gtk_tree_view_set_cursor scrolls the window itself, but it sometimes
 725                            does not work (switch from dir_list to dir_tree) */
 726                         tree_view_row_make_visible(GTK_TREE_VIEW(vd->view), &iter, TRUE);
 727                         }
 728                 gtk_tree_path_free(tpath);
 729                 gtk_tree_path_free(old_tpath);
 730                 }
 731
 732         return TRUE;
 733 }
 734
 735 #if 0
 736 const gchar *vdtree_get_path(ViewDir *vd)
 737 {
 738         return vd->path;
 739 }
 740 #endif
 741
 742 void vdtree_refresh(ViewDir *vd)
 743 {
 744         vdtree_populate_path(vd, vd->dir_fd, FALSE, TRUE);
 745 }
 746
 747 const gchar *vdtree_row_get_path(ViewDir *vd, gint row)
 748 {
 749         log_printf("FIXME: no get row path\n");
 750         return NULL;
 751 }
 752
 753 /*
 754  *----------------------------------------------------------------------------
 755  * callbacks
 756  *----------------------------------------------------------------------------
 757  */
 758
 759 gboolean vdtree_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 760 {
 761         ViewDir *vd = data;
 762         GtkTreePath *tpath;
 763         GtkTreeIter iter;
 764         FileData *fd = NULL;
 765
 766         gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &tpath, NULL);
 767         if (tpath)
 768                 {
 769                 GtkTreeModel *store;
 770                 NodeData *nd;
 771
 772                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 773                 gtk_tree_model_get_iter(store, &iter, tpath);
 774                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 775
 776                 gtk_tree_path_free(tpath);
 777
 778                 fd = (nd) ? nd->fd : NULL;
 779                 }
 780
 781         switch (event->keyval)
 782                 {
 783                 case GDK_KEY_Menu:
 784                         vd->click_fd = fd;
 785                         vd_color_set(vd, vd->click_fd, TRUE);
 786
 787                         vd->popup = vd_pop_menu(vd, vd->click_fd);
 788                         gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, vd_menu_position_cb, vd, 0, GDK_CURRENT_TIME);
 789
 790                         return TRUE;
 791                         break;
 792                 case GDK_KEY_plus:
 793                 case GDK_KEY_Right:
 794                 case GDK_KEY_KP_Add:
 795                         if (fd)
 796                                 {
 797                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 798                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 799                                 }
 800                         break;
 801                 }
 802
 803         return FALSE;
 804 }
 805
 806 static gboolean vdtree_clicked_on_expander(GtkTreeView *treeview, GtkTreePath *tpath,
 807                                            GtkTreeViewColumn *column, gint x, gint y, gint *left_of_expander)
 808 {
 809         gint depth;
 810         gint size;
 811         gint sep;
 812         gint exp_width;
 813
 814         if (column != gtk_tree_view_get_expander_column(treeview)) return FALSE;
 815
 816         gtk_widget_style_get(GTK_WIDGET(treeview), "expander-size", &size, "horizontal-separator", &sep, NULL);
 817         depth = gtk_tree_path_get_depth(tpath);
 818
 819         exp_width = sep + size + sep;
 820
 821         if (x <= depth * exp_width)
 822                 {
 823                 if (left_of_expander) *left_of_expander = !(x >= (depth - 1) * exp_width);
 824                 return TRUE;
 825                 }
 826
 827         return FALSE;
 828 }
 829
 830 gboolean vdtree_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
 831 {
 832         ViewDir *vd = data;
 833         GtkTreePath *tpath;
 834         GtkTreeViewColumn *column;
 835         GtkTreeIter iter;
 836         NodeData *nd = NULL;
 837
 838         if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
 839                                           &tpath, &column, NULL, NULL))
 840                 {
 841                 GtkTreeModel *store;
 842                 gint left_of_expander;
 843
 844                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 845                 gtk_tree_model_get_iter(store, &iter, tpath);
 846                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 847                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(widget), tpath, NULL, FALSE);
 848
 849                 if (vdtree_clicked_on_expander(GTK_TREE_VIEW(widget), tpath, column, bevent->x, bevent->y, &left_of_expander))
 850                         {
 851                         vd->click_fd = NULL;
 852
 853                         /* clicking this region should automatically reveal an expander, if necessary
 854                          * treeview bug: the expander will not expand until a button_motion_event highlights it.
 855                          */
 856                         if (bevent->button == MOUSE_BUTTON_LEFT &&
 857                             !left_of_expander &&
 858                             !gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath))
 859                                 {
 860                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 861                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 862                                 }
 863
 864                         gtk_tree_path_free(tpath);
 865                         return FALSE;
 866                         }
 867
 868                 gtk_tree_path_free(tpath);
 869                 }
 870
 871         vd->click_fd = (nd) ? nd->fd : NULL;
 872         vd_color_set(vd, vd->click_fd, TRUE);
 873
 874         if (bevent->button == MOUSE_BUTTON_RIGHT)
 875                 {
 876                 vd->popup = vd_pop_menu(vd, vd->click_fd);
 877                 gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, NULL, NULL,
 878                                bevent->button, bevent->time);
 879                 }
 880
 881         return (bevent->button != MOUSE_BUTTON_LEFT);
 882 }
 883
 884 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 885 {
 886         ViewDir *vd = data;
 887
 888         vdtree_populate_path_by_iter(vd, iter, FALSE, NULL);
 889         vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 890 }
 891
 892 static void vdtree_row_collapsed(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 893 {
 894         ViewDir *vd = data;
 895
 896         vdtree_icon_set_by_iter(vd, iter, vd->pf->close);
 897 }
 898
 899 static gint vdtree_sort_cb(GtkTreeModel *store, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 900 {
 901         NodeData *nda;
 902         NodeData *ndb;
 903
 904         gtk_tree_model_get(store, a, DIR_COLUMN_POINTER, &nda, -1);
 905         gtk_tree_model_get(store, b, DIR_COLUMN_POINTER, &ndb, -1);
 906
 907         if (!nda->fd && !ndb->fd) return 0;
 908         if (!nda->fd) return 1;
 909         if (!ndb->fd) return -1;
 910
 911         if (options->file_sort.case_sensitive)
 912                 return strcmp(nda->fd->collate_key_name, ndb->fd->collate_key_name);
 913         else
 914                 return strcmp(nda->fd->collate_key_name_nocase, ndb->fd->collate_key_name_nocase);
 915 }
 916
 917 /*
 918  *----------------------------------------------------------------------------
 919  * core
 920  *----------------------------------------------------------------------------
 921  */
 922
 923 static void vdtree_setup_root(ViewDir *vd)
 924 {
 925         const gchar *path = G_DIR_SEPARATOR_S;
 926         FileData *fd;
 927
 928
 929         fd = file_data_new_dir(path);
 930         vdtree_add_by_data(vd, fd, NULL);
 931
 932         vdtree_expand_by_data(vd, fd, TRUE);
 933         vdtree_populate_path(vd, fd, FALSE, FALSE);
 934 }
 935
 936 static gboolean vdtree_destroy_node_cb(GtkTreeModel *store, GtkTreePath *tpath, GtkTreeIter *iter, gpointer data)
 937 {
 938         NodeData *nd;
 939
 940         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 941         vdtree_node_free(nd);
 942
 943         return FALSE;
 944 }
 945
 946 void vdtree_destroy_cb(GtkWidget *widget, gpointer data)
 947 {
 948         ViewDir *vd = data;
 949         GtkTreeModel *store;
 950
 951         vdtree_dnd_drop_expand_cancel(vd);
 952         vd_dnd_drop_scroll_cancel(vd);
 953         widget_auto_scroll_stop(vd->view);
 954
 955         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 956         gtk_tree_model_foreach(store, vdtree_destroy_node_cb, vd);
 957 }
 958
 959 ViewDir *vdtree_new(ViewDir *vd, FileData *dir_fd)
 960 {
 961         GtkTreeStore *store;
 962         GtkTreeSelection *selection;
 963         GtkTreeViewColumn *column;
 964         GtkCellRenderer *renderer;
 965
 966         vd->info = g_new0(ViewDirInfoTree, 1);
 967
 968         vd->type = DIRVIEW_TREE;
 969
 970         vd->dnd_drop_leave_func = vdtree_dnd_drop_expand_cancel;
 971         vd->dnd_drop_update_func = vdtree_dnd_drop_expand;
 972
 973         store = gtk_tree_store_new(4, G_TYPE_POINTER, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_INT);
 974         vd->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 975         g_object_unref(store);
 976
 977         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(vd->view), FALSE);
 978         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(vd->view), FALSE);
 979         gtk_tree_sortable_set_default_sort_func(GTK_TREE_SORTABLE(store), vdtree_sort_cb, vd, NULL);
 980         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(store),
 981                                              GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, GTK_SORT_ASCENDING);
 982
 983         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 984         gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
 985         gtk_tree_selection_set_select_function(selection, vdtree_select_cb, vd, NULL);
 986
 987         column = gtk_tree_view_column_new();
 988         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 989
 990         renderer = gtk_cell_renderer_pixbuf_new();
 991         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 992         gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", DIR_COLUMN_ICON);
 993         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 994
 995         renderer = gtk_cell_renderer_text_new();
 996         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 997         gtk_tree_view_column_add_attribute(column, renderer, "text", DIR_COLUMN_NAME);
 998         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 999
1000         gtk_tree_view_append_column(GTK_TREE_VIEW(vd->view), column);
1001
1002         vdtree_setup_root(vd);
1003
1004         g_signal_connect(G_OBJECT(vd->view), "row_expanded",
1005                          G_CALLBACK(vdtree_row_expanded), vd);
1006         g_signal_connect(G_OBJECT(vd->view), "row_collapsed",
1007                          G_CALLBACK(vdtree_row_collapsed), vd);
1008
1009         return vd;
1010 }
1011 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */