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  *----------------------------------------------------------------------------
 313  * node traversal, management
 314  *----------------------------------------------------------------------------
 315  */
 316
 317 static gboolean vdtree_find_iter_by_data(ViewDir *vd, GtkTreeIter *parent, NodeData *nd, GtkTreeIter *iter)
 318 {
 319         GtkTreeModel *store;
 320
 321         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 322         if (!nd || !gtk_tree_model_iter_children(store, iter, parent)) return -1;
 323         do      {
 324                 NodeData *cnd;
 325
 326                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &cnd, -1);
 327                 if (cnd == nd) return TRUE;
 328                 } while (gtk_tree_model_iter_next(store, iter));
 329
 330         return FALSE;
 331 }
 332
 333 static NodeData *vdtree_find_iter_by_name(ViewDir *vd, GtkTreeIter *parent, const gchar *name, GtkTreeIter *iter)
 334 {
 335         GtkTreeModel *store;
 336
 337         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 338         if (!name || !gtk_tree_model_iter_children(store, iter, parent)) return NULL;
 339         do      {
 340                 NodeData *nd;
 341
 342                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 343                 if (nd && strcmp(nd->fd->name, name) == 0) return nd;
 344                 } while (gtk_tree_model_iter_next(store, iter));
 345
 346         return NULL;
 347 }
 348
 349 static NodeData *vdtree_find_iter_by_fd(ViewDir *vd, GtkTreeIter *parent, FileData *fd, GtkTreeIter *iter)
 350 {
 351         GtkTreeModel *store;
 352
 353         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 354         if (!fd || !gtk_tree_model_iter_children(store, iter, parent)) return NULL;
 355         do      {
 356                 NodeData *nd;
 357
 358                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 359                 if (nd && nd->fd == fd) return nd;
 360                 } while (gtk_tree_model_iter_next(store, iter));
 361
 362         return NULL;
 363 }
 364
 365 static void vdtree_add_by_data(ViewDir *vd, FileData *fd, GtkTreeIter *parent)
 366 {
 367         GtkTreeStore *store;
 368         GtkTreeIter child;
 369         NodeData *nd;
 370         GdkPixbuf *pixbuf;
 371         NodeData *end;
 372         GtkTreeIter empty;
 373
 374         if (!fd) return;
 375
 376         if (access_file(fd->path, R_OK | X_OK))
 377                 {
 378                 pixbuf = vd->pf->close;
 379                 }
 380         else
 381                 {
 382                 pixbuf = vd->pf->deny;
 383                 }
 384
 385         nd = g_new0(NodeData, 1);
 386         nd->fd = fd;
 387         nd->version = fd->version;
 388         nd->expanded = FALSE;
 389         nd->last_update = time(NULL);
 390
 391         store = GTK_TREE_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view)));
 392         gtk_tree_store_append(store, &child, parent);
 393         gtk_tree_store_set(store, &child, DIR_COLUMN_POINTER, nd,
 394                                          DIR_COLUMN_ICON, pixbuf,
 395                                          DIR_COLUMN_NAME, nd->fd->name,
 396                                          DIR_COLUMN_COLOR, FALSE, -1);
 397
 398         /* all nodes are created with an "empty" node, so that the expander is shown
 399          * this is removed when the child is populated */
 400         end = g_new0(NodeData, 1);
 401         end->fd = NULL;
 402         end->expanded = TRUE;
 403
 404         gtk_tree_store_append(store, &empty, &child);
 405         gtk_tree_store_set(store, &empty, DIR_COLUMN_POINTER, end,
 406                                           DIR_COLUMN_NAME, "empty", -1);
 407
 408         if (parent)
 409                 {
 410                 NodeData *pnd;
 411                 GtkTreePath *tpath;
 412
 413                 gtk_tree_model_get(GTK_TREE_MODEL(store), parent, DIR_COLUMN_POINTER, &pnd, -1);
 414                 tpath = gtk_tree_model_get_path(GTK_TREE_MODEL(store), parent);
 415                 if (options->tree_descend_subdirs &&
 416                     gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath) &&
 417                     !nd->expanded)
 418                         {
 419                         vdtree_populate_path_by_iter(vd, &child, FALSE, vd->dir_fd);
 420                         }
 421                 gtk_tree_path_free(tpath);
 422                 }
 423 }
 424
 425 gboolean vdtree_populate_path_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean force, FileData *target_fd)
 426 {
 427         GtkTreeModel *store;
 428         GList *list;
 429         GList *work;
 430         GList *old;
 431         time_t current_time;
 432         GtkTreeIter child;
 433         NodeData *nd;
 434
 435         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 436         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 437
 438         if (!nd) return FALSE;
 439
 440         current_time = time(NULL);
 441
 442         if (nd->expanded)
 443                 {
 444                 if (!nd->fd || !isdir(nd->fd->path))
 445                         {
 446                         if (vd->click_fd == nd->fd) vd->click_fd = NULL;
 447                         if (vd->drop_fd == nd->fd) vd->drop_fd = NULL;
 448                         gtk_tree_store_remove(GTK_TREE_STORE(store), iter);
 449                         vdtree_node_free(nd);
 450                         return FALSE;
 451                         }
 452                 if (!force && current_time - nd->last_update < 2)
 453                         {
 454                         DEBUG_1("Too frequent update of %s", nd->fd->path);
 455                         return TRUE;
 456                         }
 457                 file_data_check_changed_files(nd->fd); /* make sure we have recent info */
 458                 if (nd->fd->version == nd->version) return TRUE;
 459                 }
 460
 461         vdtree_busy_push(vd);
 462
 463         filelist_read(nd->fd, NULL, &list);
 464
 465         /* when hidden files are not enabled, and the user enters a hidden path,
 466          * allow the tree to display that path by specifically inserting the hidden entries
 467          */
 468         if (!options->file_filter.show_hidden_files &&
 469             target_fd &&
 470             strncmp(nd->fd->path, target_fd->path, strlen(nd->fd->path)) == 0)
 471                 {
 472                 gint n;
 473
 474                 n = strlen(nd->fd->path);
 475                 if (target_fd->path[n] == G_DIR_SEPARATOR && target_fd->path[n+1] == '.')
 476                         {
 477                         gchar *name8;
 478
 479                         n++;
 480
 481                         while (target_fd->path[n] != '\0' && target_fd->path[n] != G_DIR_SEPARATOR) n++;
 482                         name8 = g_strndup(target_fd->path, n);
 483
 484                         if (isdir(name8))
 485                                 {
 486                                 list = g_list_prepend(list, file_data_new_dir(name8));
 487                                 }
 488
 489                         g_free(name8);
 490                         }
 491                 }
 492
 493         old = NULL;
 494         if (gtk_tree_model_iter_children(store, &child, iter))
 495                 {
 496                 do      {
 497                         NodeData *cnd;
 498
 499                         gtk_tree_model_get(store, &child, DIR_COLUMN_POINTER, &cnd, -1);
 500                         old = g_list_prepend(old, cnd);
 501                         } while (gtk_tree_model_iter_next(store, &child));
 502                 }
 503
 504         work = list;
 505         while (work)
 506                 {
 507                 FileData *fd;
 508
 509                 fd = work->data;
 510                 work = work->next;
 511
 512                 if (strcmp(fd->name, ".") == 0 || strcmp(fd->name, "..") == 0)
 513                         {
 514                         file_data_unref(fd);
 515                         }
 516                 else
 517                         {
 518                         NodeData *cnd;
 519
 520                         cnd = vdtree_find_iter_by_fd(vd, iter, fd, &child);
 521                         if (cnd)
 522                                 {
 523                                 if (cnd->expanded && cnd->version != fd->version)
 524                                         {
 525                                         vdtree_populate_path_by_iter(vd, &child, FALSE, target_fd);
 526                                         }
 527
 528                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_NAME, fd->name, -1);
 529                                 cnd->version = fd->version;
 530                                 old = g_list_remove(old, cnd);
 531                                 file_data_unref(fd);
 532                                 }
 533                         else
 534                                 {
 535                                 vdtree_add_by_data(vd, fd, iter);
 536                                 }
 537                         }
 538                 }
 539
 540         work = old;
 541         while (work)
 542                 {
 543                 NodeData *cnd = work->data;
 544                 work = work->next;
 545
 546                 if (vd->click_fd == cnd->fd) vd->click_fd = NULL;
 547                 if (vd->drop_fd == cnd->fd) vd->drop_fd = NULL;
 548
 549                 if (vdtree_find_iter_by_data(vd, iter, cnd, &child))
 550                         {
 551                         gtk_tree_store_remove(GTK_TREE_STORE(store), &child);
 552                         vdtree_node_free(cnd);
 553                         }
 554                 }
 555
 556         g_list_free(old);
 557         g_list_free(list);
 558
 559         vdtree_busy_pop(vd);
 560
 561         nd->expanded = TRUE;
 562         nd->last_update = current_time;
 563
 564         return TRUE;
 565 }
 566
 567 FileData *vdtree_populate_path(ViewDir *vd, FileData *target_fd, gboolean expand, gboolean force)
 568 {
 569         GList *list;
 570         GList *work;
 571         FileData *fd = NULL;
 572
 573         if (!target_fd) return NULL;
 574
 575         vdtree_busy_push(vd);
 576
 577         list = parts_list(target_fd->path);
 578         list = parts_list_add_node_points(vd, list);
 579
 580         work = list;
 581         while (work)
 582                 {
 583                 PathData *pd = work->data;
 584                 if (pd->node == NULL)
 585                         {
 586                         PathData *parent_pd;
 587                         GtkTreeIter parent_iter;
 588                         GtkTreeIter iter;
 589                         NodeData *nd;
 590
 591                         if (work == list)
 592                                 {
 593                                 /* should not happen */
 594                                 log_printf("vdtree warning, root node not found\n");
 595                                 parts_list_free(list);
 596                                 vdtree_busy_pop(vd);
 597                                 return NULL;
 598                                 }
 599
 600                         parent_pd = work->prev->data;
 601
 602                         if (!vd_find_row(vd, parent_pd->node, &parent_iter) ||
 603                             !vdtree_populate_path_by_iter(vd, &parent_iter, force, target_fd) ||
 604                             (nd = vdtree_find_iter_by_name(vd, &parent_iter, pd->name, &iter)) == NULL)
 605                                 {
 606                                 log_printf("vdtree warning, aborted at %s\n", parent_pd->name);
 607                                 parts_list_free(list);
 608                                 vdtree_busy_pop(vd);
 609                                 return NULL;
 610                                 }
 611
 612                         pd->node = nd->fd;
 613
 614                         if (pd->node)
 615                                 {
 616                                 if (expand)
 617                                         {
 618                                         vdtree_expand_by_iter(vd, &parent_iter, TRUE);
 619                                         vdtree_expand_by_iter(vd, &iter, TRUE);
 620                                         }
 621                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 622                                 }
 623                         }
 624                 else
 625                         {
 626                         GtkTreeIter iter;
 627
 628                         if (vd_find_row(vd, pd->node, &iter))
 629                                 {
 630                                 if (expand) vdtree_expand_by_iter(vd, &iter, TRUE);
 631                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 632                                 }
 633                         }
 634
 635                 work = work->next;
 636                 }
 637
 638         work = g_list_last(list);
 639         if (work)
 640                 {
 641                 PathData *pd = work->data;
 642                 fd = pd->node;
 643                 }
 644         parts_list_free(list);
 645
 646         vdtree_busy_pop(vd);
 647
 648         return fd;
 649 }
 650
 651 /*
 652  *----------------------------------------------------------------------------
 653  * access
 654  *----------------------------------------------------------------------------
 655  */
 656
 657 static gboolean selection_is_ok = FALSE;
 658
 659 static gboolean vdtree_select_cb(GtkTreeSelection *selection, GtkTreeModel *store, GtkTreePath *tpath,
 660                                  gboolean path_currently_selected, gpointer data)
 661 {
 662         return selection_is_ok;
 663 }
 664
 665 gboolean vdtree_set_fd(ViewDir *vd, FileData *dir_fd)
 666 {
 667         FileData *fd;
 668         GtkTreeIter iter;
 669
 670         if (!dir_fd) return FALSE;
 671         if (vd->dir_fd == dir_fd) return TRUE;
 672
 673         file_data_unref(vd->dir_fd);
 674         vd->dir_fd = file_data_ref(dir_fd);;
 675
 676         fd = vdtree_populate_path(vd, vd->dir_fd, TRUE, FALSE);
 677
 678         if (!fd) return FALSE;
 679
 680         if (vd_find_row(vd, fd, &iter))
 681                 {
 682                 GtkTreeModel *store;
 683                 GtkTreePath *tpath, *old_tpath;
 684                 GtkTreeSelection *selection;
 685
 686                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 687
 688                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 689
 690                 /* hack, such that selection is only allowed to be changed from here */
 691                 selection_is_ok = TRUE;
 692                 gtk_tree_selection_select_iter(selection, &iter);
 693                 selection_is_ok = FALSE;
 694
 695                 gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &old_tpath, NULL);
 696                 tpath = gtk_tree_model_get_path(store, &iter);
 697
 698                 if (!old_tpath || gtk_tree_path_compare(tpath, old_tpath) != 0)
 699                         {
 700                         /* setting the cursor scrolls the view; do not do that unless it is necessary */
 701                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(vd->view), tpath, NULL, FALSE);
 702
 703                         /* gtk_tree_view_set_cursor scrolls the window itself, but it sometimes
 704                            does not work (switch from dir_list to dir_tree) */
 705                         tree_view_row_make_visible(GTK_TREE_VIEW(vd->view), &iter, TRUE);
 706                         }
 707                 gtk_tree_path_free(tpath);
 708                 gtk_tree_path_free(old_tpath);
 709                 }
 710
 711         return TRUE;
 712 }
 713
 714 void vdtree_refresh(ViewDir *vd)
 715 {
 716         vdtree_populate_path(vd, vd->dir_fd, FALSE, TRUE);
 717 }
 718
 719 const gchar *vdtree_row_get_path(ViewDir *vd, gint row)
 720 {
 721         log_printf("FIXME: no get row path\n");
 722         return NULL;
 723 }
 724
 725 /*
 726  *----------------------------------------------------------------------------
 727  * callbacks
 728  *----------------------------------------------------------------------------
 729  */
 730
 731 gboolean vdtree_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 732 {
 733         ViewDir *vd = data;
 734         GtkTreePath *tpath;
 735         GtkTreeIter iter;
 736         FileData *fd = NULL;
 737
 738         gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &tpath, NULL);
 739         if (tpath)
 740                 {
 741                 GtkTreeModel *store;
 742                 NodeData *nd;
 743
 744                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 745                 gtk_tree_model_get_iter(store, &iter, tpath);
 746                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 747
 748                 gtk_tree_path_free(tpath);
 749
 750                 fd = (nd) ? nd->fd : NULL;
 751                 }
 752
 753         switch (event->keyval)
 754                 {
 755                 case GDK_KEY_Menu:
 756                         vd->click_fd = fd;
 757                         vd_color_set(vd, vd->click_fd, TRUE);
 758
 759                         vd->popup = vd_pop_menu(vd, vd->click_fd);
 760                         gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, vd_menu_position_cb, vd, 0, GDK_CURRENT_TIME);
 761
 762                         return TRUE;
 763                         break;
 764                 case GDK_KEY_plus:
 765                 case GDK_KEY_Right:
 766                 case GDK_KEY_KP_Add:
 767                         if (fd)
 768                                 {
 769                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 770                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 771                                 }
 772                         break;
 773                 }
 774
 775         return FALSE;
 776 }
 777
 778 static gboolean vdtree_clicked_on_expander(GtkTreeView *treeview, GtkTreePath *tpath,
 779                                            GtkTreeViewColumn *column, gint x, gint y, gint *left_of_expander)
 780 {
 781         gint depth;
 782         gint size;
 783         gint sep;
 784         gint exp_width;
 785
 786         if (column != gtk_tree_view_get_expander_column(treeview)) return FALSE;
 787
 788         gtk_widget_style_get(GTK_WIDGET(treeview), "expander-size", &size, "horizontal-separator", &sep, NULL);
 789         depth = gtk_tree_path_get_depth(tpath);
 790
 791         exp_width = sep + size + sep;
 792
 793         if (x <= depth * exp_width)
 794                 {
 795                 if (left_of_expander) *left_of_expander = !(x >= (depth - 1) * exp_width);
 796                 return TRUE;
 797                 }
 798
 799         return FALSE;
 800 }
 801
 802 gboolean vdtree_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
 803 {
 804         ViewDir *vd = data;
 805         GtkTreePath *tpath;
 806         GtkTreeViewColumn *column;
 807         GtkTreeIter iter;
 808         NodeData *nd = NULL;
 809
 810         if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
 811                                           &tpath, &column, NULL, NULL))
 812                 {
 813                 GtkTreeModel *store;
 814                 gint left_of_expander;
 815
 816                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 817                 gtk_tree_model_get_iter(store, &iter, tpath);
 818                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 819                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(widget), tpath, NULL, FALSE);
 820
 821                 if (vdtree_clicked_on_expander(GTK_TREE_VIEW(widget), tpath, column, bevent->x, bevent->y, &left_of_expander))
 822                         {
 823                         vd->click_fd = NULL;
 824
 825                         /* clicking this region should automatically reveal an expander, if necessary
 826                          * treeview bug: the expander will not expand until a button_motion_event highlights it.
 827                          */
 828                         if (bevent->button == MOUSE_BUTTON_LEFT &&
 829                             !left_of_expander &&
 830                             !gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath))
 831                                 {
 832                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 833                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 834                                 }
 835
 836                         gtk_tree_path_free(tpath);
 837                         return FALSE;
 838                         }
 839
 840                 gtk_tree_path_free(tpath);
 841                 }
 842
 843         vd->click_fd = (nd) ? nd->fd : NULL;
 844         vd_color_set(vd, vd->click_fd, TRUE);
 845
 846         if (bevent->button == MOUSE_BUTTON_RIGHT)
 847                 {
 848                 vd->popup = vd_pop_menu(vd, vd->click_fd);
 849                 gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, NULL, NULL,
 850                                bevent->button, bevent->time);
 851                 }
 852
 853         return (bevent->button != MOUSE_BUTTON_LEFT);
 854 }
 855
 856 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 857 {
 858         ViewDir *vd = data;
 859
 860         vdtree_populate_path_by_iter(vd, iter, FALSE, NULL);
 861         vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 862 }
 863
 864 static void vdtree_row_collapsed(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 865 {
 866         ViewDir *vd = data;
 867
 868         vdtree_icon_set_by_iter(vd, iter, vd->pf->close);
 869 }
 870
 871 static gint vdtree_sort_cb(GtkTreeModel *store, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 872 {
 873         NodeData *nda;
 874         NodeData *ndb;
 875
 876         gtk_tree_model_get(store, a, DIR_COLUMN_POINTER, &nda, -1);
 877         gtk_tree_model_get(store, b, DIR_COLUMN_POINTER, &ndb, -1);
 878
 879         if (!nda->fd && !ndb->fd) return 0;
 880         if (!nda->fd) return 1;
 881         if (!ndb->fd) return -1;
 882
 883         if (options->file_sort.case_sensitive)
 884                 return strcmp(nda->fd->collate_key_name, ndb->fd->collate_key_name);
 885         else
 886                 return strcmp(nda->fd->collate_key_name_nocase, ndb->fd->collate_key_name_nocase);
 887 }
 888
 889 /*
 890  *----------------------------------------------------------------------------
 891  * core
 892  *----------------------------------------------------------------------------
 893  */
 894
 895 static void vdtree_setup_root(ViewDir *vd)
 896 {
 897         const gchar *path = G_DIR_SEPARATOR_S;
 898         FileData *fd;
 899
 900
 901         fd = file_data_new_dir(path);
 902         vdtree_add_by_data(vd, fd, NULL);
 903
 904         vdtree_expand_by_data(vd, fd, TRUE);
 905         vdtree_populate_path(vd, fd, FALSE, FALSE);
 906 }
 907
 908 static gboolean vdtree_destroy_node_cb(GtkTreeModel *store, GtkTreePath *tpath, GtkTreeIter *iter, gpointer data)
 909 {
 910         NodeData *nd;
 911
 912         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 913         vdtree_node_free(nd);
 914
 915         return FALSE;
 916 }
 917
 918 void vdtree_destroy_cb(GtkWidget *widget, gpointer data)
 919 {
 920         ViewDir *vd = data;
 921         GtkTreeModel *store;
 922
 923         vdtree_dnd_drop_expand_cancel(vd);
 924         vd_dnd_drop_scroll_cancel(vd);
 925         widget_auto_scroll_stop(vd->view);
 926
 927         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 928         gtk_tree_model_foreach(store, vdtree_destroy_node_cb, vd);
 929 }
 930
 931 ViewDir *vdtree_new(ViewDir *vd, FileData *dir_fd)
 932 {
 933         GtkTreeStore *store;
 934         GtkTreeSelection *selection;
 935         GtkTreeViewColumn *column;
 936         GtkCellRenderer *renderer;
 937
 938         vd->info = g_new0(ViewDirInfoTree, 1);
 939
 940         vd->type = DIRVIEW_TREE;
 941
 942         vd->dnd_drop_leave_func = vdtree_dnd_drop_expand_cancel;
 943         vd->dnd_drop_update_func = vdtree_dnd_drop_expand;
 944
 945         store = gtk_tree_store_new(4, G_TYPE_POINTER, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_INT);
 946         vd->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 947         g_object_unref(store);
 948
 949         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(vd->view), FALSE);
 950         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(vd->view), FALSE);
 951         gtk_tree_sortable_set_default_sort_func(GTK_TREE_SORTABLE(store), vdtree_sort_cb, vd, NULL);
 952         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(store),
 953                                              GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, GTK_SORT_ASCENDING);
 954
 955         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 956         gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
 957         gtk_tree_selection_set_select_function(selection, vdtree_select_cb, vd, NULL);
 958
 959         column = gtk_tree_view_column_new();
 960         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 961
 962         renderer = gtk_cell_renderer_pixbuf_new();
 963         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 964         gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", DIR_COLUMN_ICON);
 965         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 966
 967         renderer = gtk_cell_renderer_text_new();
 968         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 969         gtk_tree_view_column_add_attribute(column, renderer, "text", DIR_COLUMN_NAME);
 970         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 971
 972         gtk_tree_view_append_column(GTK_TREE_VIEW(vd->view), column);
 973
 974         vdtree_setup_root(vd);
 975
 976         g_signal_connect(G_OBJECT(vd->view), "row_expanded",
 977                          G_CALLBACK(vdtree_row_expanded), vd);
 978         g_signal_connect(G_OBJECT(vd->view), "row_collapsed",
 979                          G_CALLBACK(vdtree_row_collapsed), vd);
 980
 981         return vd;
 982 }
 983 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */