src/view_dir_tree.c

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "main.h"
  23 #include "view_dir_tree.h"
  24
  25
  26 #include "dnd.h"
  27 #include "dupe.h"
  28 #include "filedata.h"
  29 #include "layout.h"
  30 #include "layout_image.h"
  31 #include "layout_util.h"
  32 #include "utilops.h"
  33 #include "ui_fileops.h"
  34 #include "ui_menu.h"
  35 #include "ui_tree_edit.h"
  36 #include "view_dir.h"
  37
  38 #include <gdk/gdkkeysyms.h> /* for keyboard values */
  39
  40
  41 #define VDTREE(_vd_) ((ViewDirInfoTree *)(_vd_->info))
  42
  43
  44 typedef struct _PathData PathData;
  45 struct _PathData
  46 {
  47         gchar *name;
  48         FileData *node;
  49 };
  50
  51
  52 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data);
  53
  54
  55 /*
  56  *----------------------------------------------------------------------------
  57  * utils
  58  *----------------------------------------------------------------------------
  59  */
  60
  61 static void set_cursor(GtkWidget *widget, GdkCursorType cursor_type)
  62 {
  63         GdkCursor *cursor = NULL;
  64
  65         if (!widget || !gtk_widget_get_window(widget)) return;
  66
  67         if (cursor_type > -1) cursor = gdk_cursor_new(cursor_type);
  68         gdk_window_set_cursor(gtk_widget_get_window(widget), cursor);
  69         if (cursor) gdk_cursor_unref(cursor);
  70         gdk_flush();
  71 }
  72
  73 static void vdtree_busy_push(ViewDir *vd)
  74 {
  75         if (VDTREE(vd)->busy_ref == 0) set_cursor(vd->view, GDK_WATCH);
  76         VDTREE(vd)->busy_ref++;
  77 }
  78
  79 static void vdtree_busy_pop(ViewDir *vd)
  80 {
  81         if (VDTREE(vd)->busy_ref == 1) set_cursor(vd->view, -1);
  82         if (VDTREE(vd)->busy_ref > 0) VDTREE(vd)->busy_ref--;
  83 }
  84
  85 gboolean vdtree_find_row(ViewDir *vd, FileData *fd, GtkTreeIter *iter, GtkTreeIter *parent)
  86 {
  87         GtkTreeModel *store;
  88         gboolean valid;
  89
  90         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
  91         if (parent)
  92                 {
  93                 valid = gtk_tree_model_iter_children(store, iter, parent);
  94                 }
  95         else
  96                 {
  97                 valid = gtk_tree_model_get_iter_first(store, iter);
  98                 }
  99         while (valid)
 100                 {
 101                 NodeData *nd;
 102                 GtkTreeIter found;
 103
 104                 gtk_tree_model_get(GTK_TREE_MODEL(store), iter, DIR_COLUMN_POINTER, &nd, -1);
 105                 if (nd->fd == fd) return TRUE;
 106
 107                 if (vdtree_find_row(vd, fd, &found, iter))
 108                         {
 109                         memcpy(iter, &found, sizeof(found));
 110                         return TRUE;
 111                         }
 112
 113                 valid = gtk_tree_model_iter_next(GTK_TREE_MODEL(store), iter);
 114                 }
 115
 116         return FALSE;
 117 }
 118
 119 static void vdtree_icon_set_by_iter(ViewDir *vd, GtkTreeIter *iter, GdkPixbuf *pixbuf)
 120 {
 121         GtkTreeModel *store;
 122         GdkPixbuf *old;
 123
 124         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 125         gtk_tree_model_get(store, iter, DIR_COLUMN_ICON, &old, -1);
 126         if (old != vd->pf->deny)
 127                 {
 128                 gtk_tree_store_set(GTK_TREE_STORE(store), iter, DIR_COLUMN_ICON, pixbuf, -1);
 129                 }
 130 }
 131
 132 static void vdtree_expand_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean expand)
 133 {
 134         GtkTreeModel *store;
 135         GtkTreePath *tpath;
 136
 137         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 138         tpath = gtk_tree_model_get_path(store, iter);
 139
 140         if (expand)
 141                 {
 142                 /* block signal handler, icon is set here, the caller of vdtree_expand_by_iter must make sure
 143                    that the iter is populated */
 144                 g_signal_handlers_block_by_func(G_OBJECT(vd->view), vdtree_row_expanded, vd);
 145                 gtk_tree_view_expand_row(GTK_TREE_VIEW(vd->view), tpath, FALSE);
 146                 vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 147                 g_signal_handlers_unblock_by_func(G_OBJECT(vd->view), vdtree_row_expanded, vd);
 148                 }
 149         else
 150                 {
 151                 /* signal handler vdtree_row_collapsed is called, it updates the icon */
 152                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(vd->view), tpath);
 153                 }
 154         gtk_tree_path_free(tpath);
 155 }
 156
 157 static void vdtree_expand_by_data(ViewDir *vd, FileData *fd, gboolean expand)
 158 {
 159         GtkTreeIter iter;
 160
 161         if (vd_find_row(vd, fd, &iter))
 162                 {
 163                 vdtree_expand_by_iter(vd, &iter, expand);
 164                 }
 165 }
 166
 167 static void vdtree_node_free(NodeData *nd)
 168 {
 169         if (!nd) return;
 170
 171         if (nd->fd) file_data_unref(nd->fd);
 172         g_free(nd);
 173 }
 174
 175 /*
 176  *----------------------------------------------------------------------------
 177  * dnd
 178  *----------------------------------------------------------------------------
 179  */
 180
 181 static gboolean vdtree_dnd_drop_expand_cb(gpointer data)
 182 {
 183         ViewDir *vd = data;
 184         GtkTreeIter iter;
 185
 186         if (vd->drop_fd && vd_find_row(vd, vd->drop_fd, &iter))
 187                 {
 188                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 189                 vdtree_expand_by_data(vd, vd->drop_fd, TRUE);
 190                 }
 191
 192         VDTREE(vd)->drop_expand_id = 0;
 193         return FALSE;
 194 }
 195
 196 static void vdtree_dnd_drop_expand_cancel(ViewDir *vd)
 197 {
 198         if (VDTREE(vd)->drop_expand_id)
 199                 {
 200                 g_source_remove(VDTREE(vd)->drop_expand_id);
 201                 VDTREE(vd)->drop_expand_id = 0;
 202                 }
 203 }
 204
 205 static void vdtree_dnd_drop_expand(ViewDir *vd)
 206 {
 207         vdtree_dnd_drop_expand_cancel(vd);
 208         VDTREE(vd)->drop_expand_id = g_timeout_add(1000, vdtree_dnd_drop_expand_cb, vd);
 209 }
 210
 211 /*
 212  *----------------------------------------------------------------------------
 213  * parts lists
 214  *----------------------------------------------------------------------------
 215  */
 216
 217 static GList *parts_list(const gchar *path)
 218 {
 219         GList *list = NULL;
 220         const gchar *strb, *strp;
 221         gint l;
 222
 223         strp = path;
 224
 225         if (*strp != G_DIR_SEPARATOR) return NULL;
 226
 227         strp++;
 228         strb = strp;
 229         l = 0;
 230
 231         while (*strp != '\0')
 232                 {
 233                 if (*strp == G_DIR_SEPARATOR)
 234                         {
 235                         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 236                         strp++;
 237                         strb = strp;
 238                         l = 0;
 239                         }
 240                 else
 241                         {
 242                         strp++;
 243                         l++;
 244                         }
 245                 }
 246         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 247
 248         list = g_list_reverse(list);
 249
 250         list = g_list_prepend(list, g_strdup(G_DIR_SEPARATOR_S));
 251
 252         return list;
 253 }
 254
 255 static void parts_list_free(GList *list)
 256 {
 257         GList *work = list;
 258         while (work)
 259                 {
 260                 PathData *pd = work->data;
 261                 g_free(pd->name);
 262                 g_free(pd);
 263                 work = work->next;
 264                 }
 265
 266         g_list_free(list);
 267 }
 268
 269 static GList *parts_list_add_node_points(ViewDir *vd, GList *list)
 270 {
 271         GList *work;
 272         GtkTreeModel *store;
 273         GtkTreeIter iter;
 274         gboolean valid;
 275
 276         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 277         valid = gtk_tree_model_get_iter_first(store, &iter);
 278
 279         work = list;
 280         while (work)
 281                 {
 282                 PathData *pd;
 283                 FileData *fd = NULL;
 284
 285                 pd = g_new0(PathData, 1);
 286                 pd->name = work->data;
 287
 288                 while (valid && !fd)
 289                         {
 290                         NodeData *nd;
 291
 292                         gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 293                         if (nd->fd && strcmp(nd->fd->name, pd->name) == 0)
 294                                 {
 295                                 fd = nd->fd;
 296                                 }
 297                         else
 298                                 {
 299                                 valid = gtk_tree_model_iter_next(store, &iter);
 300                                 }
 301                         }
 302
 303                 pd->node = fd;
 304                 work->data = pd;
 305
 306                 if (fd)
 307                         {
 308                         GtkTreeIter parent;
 309                         memcpy(&parent, &iter, sizeof(parent));
 310                         valid = gtk_tree_model_iter_children(store, &iter, &parent);
 311                         }
 312
 313                 work = work->next;
 314                 }
 315
 316         return list;
 317 }
 318
 319
 320 /*
 321  *----------------------------------------------------------------------------
 322  * node traversal, management
 323  *----------------------------------------------------------------------------
 324  */
 325
 326 static gboolean vdtree_find_iter_by_data(ViewDir *vd, GtkTreeIter *parent, NodeData *nd, GtkTreeIter *iter)
 327 {
 328         GtkTreeModel *store;
 329
 330         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 331         if (!nd || !gtk_tree_model_iter_children(store, iter, parent)) return -1;
 332         do      {
 333                 NodeData *cnd;
 334
 335                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &cnd, -1);
 336                 if (cnd == nd) return TRUE;
 337                 } while (gtk_tree_model_iter_next(store, iter));
 338
 339         return FALSE;
 340 }
 341
 342 static NodeData *vdtree_find_iter_by_name(ViewDir *vd, GtkTreeIter *parent, const gchar *name, GtkTreeIter *iter)
 343 {
 344         GtkTreeModel *store;
 345
 346         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 347         if (!name || !gtk_tree_model_iter_children(store, iter, parent)) return NULL;
 348         do      {
 349                 NodeData *nd;
 350
 351                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 352                 if (nd && strcmp(nd->fd->name, name) == 0) return nd;
 353                 } while (gtk_tree_model_iter_next(store, iter));
 354
 355         return NULL;
 356 }
 357
 358 static NodeData *vdtree_find_iter_by_fd(ViewDir *vd, GtkTreeIter *parent, FileData *fd, GtkTreeIter *iter)
 359 {
 360         GtkTreeModel *store;
 361
 362         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 363         if (!fd || !gtk_tree_model_iter_children(store, iter, parent)) return NULL;
 364         do      {
 365                 NodeData *nd;
 366
 367                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 368                 if (nd && nd->fd == fd) return nd;
 369                 } while (gtk_tree_model_iter_next(store, iter));
 370
 371         return NULL;
 372 }
 373
 374 static void vdtree_add_by_data(ViewDir *vd, FileData *fd, GtkTreeIter *parent)
 375 {
 376         GtkTreeStore *store;
 377         GtkTreeIter child;
 378         NodeData *nd;
 379         GdkPixbuf *pixbuf;
 380         NodeData *end;
 381         GtkTreeIter empty;
 382
 383         if (!fd) return;
 384
 385         if (access_file(fd->path, R_OK | X_OK))
 386                 {
 387                 pixbuf = vd->pf->close;
 388                 }
 389         else
 390                 {
 391                 pixbuf = vd->pf->deny;
 392                 }
 393
 394         nd = g_new0(NodeData, 1);
 395         nd->fd = fd;
 396         nd->version = fd->version;
 397         nd->expanded = FALSE;
 398         nd->last_update = time(NULL);
 399
 400         store = GTK_TREE_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view)));
 401         gtk_tree_store_append(store, &child, parent);
 402         gtk_tree_store_set(store, &child, DIR_COLUMN_POINTER, nd,
 403                                          DIR_COLUMN_ICON, pixbuf,
 404                                          DIR_COLUMN_NAME, nd->fd->name,
 405                                          DIR_COLUMN_COLOR, FALSE, -1);
 406
 407         /* all nodes are created with an "empty" node, so that the expander is shown
 408          * this is removed when the child is populated */
 409         end = g_new0(NodeData, 1);
 410         end->fd = NULL;
 411         end->expanded = TRUE;
 412
 413         gtk_tree_store_append(store, &empty, &child);
 414         gtk_tree_store_set(store, &empty, DIR_COLUMN_POINTER, end,
 415                                           DIR_COLUMN_NAME, "empty", -1);
 416
 417         if (parent)
 418                 {
 419                 NodeData *pnd;
 420                 GtkTreePath *tpath;
 421
 422                 gtk_tree_model_get(GTK_TREE_MODEL(store), parent, DIR_COLUMN_POINTER, &pnd, -1);
 423                 tpath = gtk_tree_model_get_path(GTK_TREE_MODEL(store), parent);
 424                 if (options->tree_descend_subdirs &&
 425                     gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath) &&
 426                     !nd->expanded)
 427                         {
 428                         vdtree_populate_path_by_iter(vd, &child, FALSE, vd->dir_fd);
 429                         }
 430                 gtk_tree_path_free(tpath);
 431                 }
 432 }
 433
 434 gboolean vdtree_populate_path_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean force, FileData *target_fd)
 435 {
 436         GtkTreeModel *store;
 437         GList *list;
 438         GList *work;
 439         GList *old;
 440         time_t current_time;
 441         GtkTreeIter child;
 442         NodeData *nd;
 443
 444         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 445         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 446
 447         if (!nd) return FALSE;
 448
 449         current_time = time(NULL);
 450
 451         if (nd->expanded)
 452                 {
 453                 if (!nd->fd || !isdir(nd->fd->path))
 454                         {
 455                         if (vd->click_fd == nd->fd) vd->click_fd = NULL;
 456                         if (vd->drop_fd == nd->fd) vd->drop_fd = NULL;
 457                         gtk_tree_store_remove(GTK_TREE_STORE(store), iter);
 458                         vdtree_node_free(nd);
 459                         return FALSE;
 460                         }
 461                 if (!force && current_time - nd->last_update < 2)
 462                         {
 463                         DEBUG_1("Too frequent update of %s", nd->fd->path);
 464                         return TRUE;
 465                         }
 466                 file_data_check_changed_files(nd->fd); /* make sure we have recent info */
 467                 if (nd->fd->version == nd->version) return TRUE;
 468                 }
 469
 470         vdtree_busy_push(vd);
 471
 472         filelist_read(nd->fd, NULL, &list);
 473
 474         /* when hidden files are not enabled, and the user enters a hidden path,
 475          * allow the tree to display that path by specifically inserting the hidden entries
 476          */
 477         if (!options->file_filter.show_hidden_files &&
 478             target_fd &&
 479             strncmp(nd->fd->path, target_fd->path, strlen(nd->fd->path)) == 0)
 480                 {
 481                 gint n;
 482
 483                 n = strlen(nd->fd->path);
 484                 if (target_fd->path[n] == G_DIR_SEPARATOR && target_fd->path[n+1] == '.')
 485                         {
 486                         gchar *name8;
 487
 488                         n++;
 489
 490                         while (target_fd->path[n] != '\0' && target_fd->path[n] != G_DIR_SEPARATOR) n++;
 491                         name8 = g_strndup(target_fd->path, n);
 492
 493                         if (isdir(name8))
 494                                 {
 495                                 list = g_list_prepend(list, file_data_new_dir(name8));
 496                                 }
 497
 498                         g_free(name8);
 499                         }
 500                 }
 501
 502         old = NULL;
 503         if (gtk_tree_model_iter_children(store, &child, iter))
 504                 {
 505                 do      {
 506                         NodeData *cnd;
 507
 508                         gtk_tree_model_get(store, &child, DIR_COLUMN_POINTER, &cnd, -1);
 509                         old = g_list_prepend(old, cnd);
 510                         } while (gtk_tree_model_iter_next(store, &child));
 511                 }
 512
 513         work = list;
 514         while (work)
 515                 {
 516                 FileData *fd;
 517
 518                 fd = work->data;
 519                 work = work->next;
 520
 521                 if (strcmp(fd->name, ".") == 0 || strcmp(fd->name, "..") == 0)
 522                         {
 523                         file_data_unref(fd);
 524                         }
 525                 else
 526                         {
 527                         NodeData *cnd;
 528
 529                         cnd = vdtree_find_iter_by_fd(vd, iter, fd, &child);
 530                         if (cnd)
 531                                 {
 532                                 if (cnd->expanded && cnd->version != fd->version)
 533                                         {
 534                                         vdtree_populate_path_by_iter(vd, &child, FALSE, target_fd);
 535                                         }
 536
 537                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_NAME, fd->name, -1);
 538                                 cnd->version = fd->version;
 539                                 old = g_list_remove(old, cnd);
 540                                 file_data_unref(fd);
 541                                 }
 542                         else
 543                                 {
 544                                 vdtree_add_by_data(vd, fd, iter);
 545                                 }
 546                         }
 547                 }
 548
 549         work = old;
 550         while (work)
 551                 {
 552                 NodeData *cnd = work->data;
 553                 work = work->next;
 554
 555                 if (vd->click_fd == cnd->fd) vd->click_fd = NULL;
 556                 if (vd->drop_fd == cnd->fd) vd->drop_fd = NULL;
 557
 558                 if (vdtree_find_iter_by_data(vd, iter, cnd, &child))
 559                         {
 560                         gtk_tree_store_remove(GTK_TREE_STORE(store), &child);
 561                         vdtree_node_free(cnd);
 562                         }
 563                 }
 564
 565         g_list_free(old);
 566         g_list_free(list);
 567
 568         vdtree_busy_pop(vd);
 569
 570         nd->expanded = TRUE;
 571         nd->last_update = current_time;
 572
 573         return TRUE;
 574 }
 575
 576 FileData *vdtree_populate_path(ViewDir *vd, FileData *target_fd, gboolean expand, gboolean force)
 577 {
 578         GList *list;
 579         GList *work;
 580         FileData *fd = NULL;
 581
 582         if (!target_fd) return NULL;
 583
 584         vdtree_busy_push(vd);
 585
 586         list = parts_list(target_fd->path);
 587         list = parts_list_add_node_points(vd, list);
 588
 589         work = list;
 590         while (work)
 591                 {
 592                 PathData *pd = work->data;
 593                 if (pd->node == NULL)
 594                         {
 595                         PathData *parent_pd;
 596                         GtkTreeIter parent_iter;
 597                         GtkTreeIter iter;
 598                         NodeData *nd;
 599
 600                         if (work == list)
 601                                 {
 602                                 /* should not happen */
 603                                 log_printf("vdtree warning, root node not found\n");
 604                                 parts_list_free(list);
 605                                 vdtree_busy_pop(vd);
 606                                 return NULL;
 607                                 }
 608
 609                         parent_pd = work->prev->data;
 610
 611                         if (!vd_find_row(vd, parent_pd->node, &parent_iter) ||
 612                             !vdtree_populate_path_by_iter(vd, &parent_iter, force, target_fd) ||
 613                             (nd = vdtree_find_iter_by_name(vd, &parent_iter, pd->name, &iter)) == NULL)
 614                                 {
 615                                 log_printf("vdtree warning, aborted at %s\n", parent_pd->name);
 616                                 parts_list_free(list);
 617                                 vdtree_busy_pop(vd);
 618                                 return NULL;
 619                                 }
 620
 621                         pd->node = nd->fd;
 622
 623                         if (pd->node)
 624                                 {
 625                                 if (expand)
 626                                         {
 627                                         vdtree_expand_by_iter(vd, &parent_iter, TRUE);
 628                                         vdtree_expand_by_iter(vd, &iter, TRUE);
 629                                         }
 630                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 631                                 }
 632                         }
 633                 else
 634                         {
 635                         GtkTreeIter iter;
 636
 637                         if (vd_find_row(vd, pd->node, &iter))
 638                                 {
 639                                 if (expand) vdtree_expand_by_iter(vd, &iter, TRUE);
 640                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 641                                 }
 642                         }
 643
 644                 work = work->next;
 645                 }
 646
 647         work = g_list_last(list);
 648         if (work)
 649                 {
 650                 PathData *pd = work->data;
 651                 fd = pd->node;
 652                 }
 653         parts_list_free(list);
 654
 655         vdtree_busy_pop(vd);
 656
 657         return fd;
 658 }
 659
 660 /*
 661  *----------------------------------------------------------------------------
 662  * access
 663  *----------------------------------------------------------------------------
 664  */
 665
 666 static gboolean selection_is_ok = FALSE;
 667
 668 static gboolean vdtree_select_cb(GtkTreeSelection *selection, GtkTreeModel *store, GtkTreePath *tpath,
 669                                  gboolean path_currently_selected, gpointer data)
 670 {
 671         return selection_is_ok;
 672 }
 673
 674 gboolean vdtree_set_fd(ViewDir *vd, FileData *dir_fd)
 675 {
 676         FileData *fd;
 677         GtkTreeIter iter;
 678
 679         if (!dir_fd) return FALSE;
 680         if (vd->dir_fd == dir_fd) return TRUE;
 681
 682         file_data_unref(vd->dir_fd);
 683         vd->dir_fd = file_data_ref(dir_fd);;
 684
 685         fd = vdtree_populate_path(vd, vd->dir_fd, TRUE, FALSE);
 686
 687         if (!fd) return FALSE;
 688
 689         if (vd_find_row(vd, fd, &iter))
 690                 {
 691                 GtkTreeModel *store;
 692                 GtkTreePath *tpath, *old_tpath;
 693                 GtkTreeSelection *selection;
 694
 695                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 696
 697                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 698
 699                 /* hack, such that selection is only allowed to be changed from here */
 700                 selection_is_ok = TRUE;
 701                 gtk_tree_selection_select_iter(selection, &iter);
 702                 selection_is_ok = FALSE;
 703
 704                 gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &old_tpath, NULL);
 705                 tpath = gtk_tree_model_get_path(store, &iter);
 706
 707                 if (!old_tpath || gtk_tree_path_compare(tpath, old_tpath) != 0)
 708                         {
 709                         /* setting the cursor scrolls the view; do not do that unless it is necessary */
 710                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(vd->view), tpath, NULL, FALSE);
 711
 712                         /* gtk_tree_view_set_cursor scrolls the window itself, but it sometimes
 713                            does not work (switch from dir_list to dir_tree) */
 714                         tree_view_row_make_visible(GTK_TREE_VIEW(vd->view), &iter, TRUE);
 715                         }
 716                 gtk_tree_path_free(tpath);
 717                 gtk_tree_path_free(old_tpath);
 718                 }
 719
 720         return TRUE;
 721 }
 722
 723 void vdtree_refresh(ViewDir *vd)
 724 {
 725         vdtree_populate_path(vd, vd->dir_fd, FALSE, TRUE);
 726 }
 727
 728 const gchar *vdtree_row_get_path(ViewDir *vd, gint row)
 729 {
 730         log_printf("FIXME: no get row path\n");
 731         return NULL;
 732 }
 733
 734 /*
 735  *----------------------------------------------------------------------------
 736  * callbacks
 737  *----------------------------------------------------------------------------
 738  */
 739
 740 gboolean vdtree_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 741 {
 742         ViewDir *vd = data;
 743         GtkTreePath *tpath;
 744         GtkTreeIter iter;
 745         FileData *fd = NULL;
 746
 747         gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &tpath, NULL);
 748         if (tpath)
 749                 {
 750                 GtkTreeModel *store;
 751                 NodeData *nd;
 752
 753                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 754                 gtk_tree_model_get_iter(store, &iter, tpath);
 755                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 756
 757                 gtk_tree_path_free(tpath);
 758
 759                 fd = (nd) ? nd->fd : NULL;
 760                 }
 761
 762         switch (event->keyval)
 763                 {
 764                 case GDK_KEY_Menu:
 765                         vd->click_fd = fd;
 766                         vd_color_set(vd, vd->click_fd, TRUE);
 767
 768                         vd->popup = vd_pop_menu(vd, vd->click_fd);
 769                         gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, vd_menu_position_cb, vd, 0, GDK_CURRENT_TIME);
 770
 771                         return TRUE;
 772                         break;
 773                 case GDK_KEY_plus:
 774                 case GDK_KEY_Right:
 775                 case GDK_KEY_KP_Add:
 776                         if (fd)
 777                                 {
 778                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 779                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 780                                 }
 781                         break;
 782                 }
 783
 784         return FALSE;
 785 }
 786
 787 static gboolean vdtree_clicked_on_expander(GtkTreeView *treeview, GtkTreePath *tpath,
 788                                            GtkTreeViewColumn *column, gint x, gint y, gint *left_of_expander)
 789 {
 790         gint depth;
 791         gint size;
 792         gint sep;
 793         gint exp_width;
 794
 795         if (column != gtk_tree_view_get_expander_column(treeview)) return FALSE;
 796
 797         gtk_widget_style_get(GTK_WIDGET(treeview), "expander-size", &size, "horizontal-separator", &sep, NULL);
 798         depth = gtk_tree_path_get_depth(tpath);
 799
 800         exp_width = sep + size + sep;
 801
 802         if (x <= depth * exp_width)
 803                 {
 804                 if (left_of_expander) *left_of_expander = !(x >= (depth - 1) * exp_width);
 805                 return TRUE;
 806                 }
 807
 808         return FALSE;
 809 }
 810
 811 gboolean vdtree_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
 812 {
 813         ViewDir *vd = data;
 814         GtkTreePath *tpath;
 815         GtkTreeViewColumn *column;
 816         GtkTreeIter iter;
 817         NodeData *nd = NULL;
 818
 819         if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
 820                                           &tpath, &column, NULL, NULL))
 821                 {
 822                 GtkTreeModel *store;
 823                 gint left_of_expander;
 824
 825                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 826                 gtk_tree_model_get_iter(store, &iter, tpath);
 827                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 828                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(widget), tpath, NULL, FALSE);
 829
 830                 if (vdtree_clicked_on_expander(GTK_TREE_VIEW(widget), tpath, column, bevent->x, bevent->y, &left_of_expander))
 831                         {
 832                         vd->click_fd = NULL;
 833
 834                         /* clicking this region should automatically reveal an expander, if necessary
 835                          * treeview bug: the expander will not expand until a button_motion_event highlights it.
 836                          */
 837                         if (bevent->button == MOUSE_BUTTON_LEFT &&
 838                             !left_of_expander &&
 839                             !gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath))
 840                                 {
 841                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 842                                 vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 843                                 }
 844
 845                         gtk_tree_path_free(tpath);
 846                         return FALSE;
 847                         }
 848
 849                 gtk_tree_path_free(tpath);
 850                 }
 851
 852         vd->click_fd = (nd) ? nd->fd : NULL;
 853         vd_color_set(vd, vd->click_fd, TRUE);
 854
 855         if (bevent->button == MOUSE_BUTTON_RIGHT)
 856                 {
 857                 vd->popup = vd_pop_menu(vd, vd->click_fd);
 858                 gtk_menu_popup(GTK_MENU(vd->popup), NULL, NULL, NULL, NULL,
 859                                bevent->button, bevent->time);
 860                 }
 861
 862         return (bevent->button != MOUSE_BUTTON_LEFT);
 863 }
 864
 865 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 866 {
 867         ViewDir *vd = data;
 868
 869         vdtree_populate_path_by_iter(vd, iter, FALSE, NULL);
 870         vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 871 }
 872
 873 static void vdtree_row_collapsed(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 874 {
 875         ViewDir *vd = data;
 876
 877         vdtree_icon_set_by_iter(vd, iter, vd->pf->close);
 878 }
 879
 880 static gint vdtree_sort_cb(GtkTreeModel *store, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 881 {
 882         NodeData *nda;
 883         NodeData *ndb;
 884
 885         gtk_tree_model_get(store, a, DIR_COLUMN_POINTER, &nda, -1);
 886         gtk_tree_model_get(store, b, DIR_COLUMN_POINTER, &ndb, -1);
 887
 888         if (!nda->fd && !ndb->fd) return 0;
 889         if (!nda->fd) return 1;
 890         if (!ndb->fd) return -1;
 891
 892         if (options->file_sort.case_sensitive)
 893                 return strcmp(nda->fd->collate_key_name, ndb->fd->collate_key_name);
 894         else
 895                 return strcmp(nda->fd->collate_key_name_nocase, ndb->fd->collate_key_name_nocase);
 896 }
 897
 898 /*
 899  *----------------------------------------------------------------------------
 900  * core
 901  *----------------------------------------------------------------------------
 902  */
 903
 904 static void vdtree_setup_root(ViewDir *vd)
 905 {
 906         const gchar *path = G_DIR_SEPARATOR_S;
 907         FileData *fd;
 908
 909
 910         fd = file_data_new_dir(path);
 911         vdtree_add_by_data(vd, fd, NULL);
 912
 913         vdtree_expand_by_data(vd, fd, TRUE);
 914         vdtree_populate_path(vd, fd, FALSE, FALSE);
 915 }
 916
 917 static gboolean vdtree_destroy_node_cb(GtkTreeModel *store, GtkTreePath *tpath, GtkTreeIter *iter, gpointer data)
 918 {
 919         NodeData *nd;
 920
 921         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 922         vdtree_node_free(nd);
 923
 924         return FALSE;
 925 }
 926
 927 void vdtree_destroy_cb(GtkWidget *widget, gpointer data)
 928 {
 929         ViewDir *vd = data;
 930         GtkTreeModel *store;
 931
 932         vdtree_dnd_drop_expand_cancel(vd);
 933         vd_dnd_drop_scroll_cancel(vd);
 934         widget_auto_scroll_stop(vd->view);
 935
 936         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 937         gtk_tree_model_foreach(store, vdtree_destroy_node_cb, vd);
 938 }
 939
 940 ViewDir *vdtree_new(ViewDir *vd, FileData *dir_fd)
 941 {
 942         GtkTreeStore *store;
 943         GtkTreeSelection *selection;
 944         GtkTreeViewColumn *column;
 945         GtkCellRenderer *renderer;
 946
 947         vd->info = g_new0(ViewDirInfoTree, 1);
 948
 949         vd->type = DIRVIEW_TREE;
 950
 951         vd->dnd_drop_leave_func = vdtree_dnd_drop_expand_cancel;
 952         vd->dnd_drop_update_func = vdtree_dnd_drop_expand;
 953
 954         store = gtk_tree_store_new(4, G_TYPE_POINTER, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_INT);
 955         vd->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 956         g_object_unref(store);
 957
 958         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(vd->view), FALSE);
 959         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(vd->view), FALSE);
 960         gtk_tree_sortable_set_default_sort_func(GTK_TREE_SORTABLE(store), vdtree_sort_cb, vd, NULL);
 961         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(store),
 962                                              GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, GTK_SORT_ASCENDING);
 963
 964         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 965         gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
 966         gtk_tree_selection_set_select_function(selection, vdtree_select_cb, vd, NULL);
 967
 968         column = gtk_tree_view_column_new();
 969         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 970
 971         renderer = gtk_cell_renderer_pixbuf_new();
 972         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 973         gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", DIR_COLUMN_ICON);
 974         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 975
 976         renderer = gtk_cell_renderer_text_new();
 977         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 978         gtk_tree_view_column_add_attribute(column, renderer, "text", DIR_COLUMN_NAME);
 979         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, NULL);
 980
 981         gtk_tree_view_append_column(GTK_TREE_VIEW(vd->view), column);
 982
 983         vdtree_setup_root(vd);
 984
 985         g_signal_connect(G_OBJECT(vd->view), "row_expanded",
 986                          G_CALLBACK(vdtree_row_expanded), vd);
 987         g_signal_connect(G_OBJECT(vd->view), "row_collapsed",
 988                          G_CALLBACK(vdtree_row_collapsed), vd);
 989
 990         return vd;
 991 }
 992 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */