src/view-dir-tree.cc

   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 #include "filedata.h"
  26 #include "ui-fileops.h"
  27 #include "ui-tree-edit.h"
  28 #include "view-dir.h"
  29
  30 #define VDTREE(_vd_) ((ViewDirInfoTree *)(_vd_->info))
  31
  32
  33 struct PathData
  34 {
  35         gchar *name;
  36         FileData *node;
  37 };
  38
  39
  40 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data);
  41
  42
  43 /*
  44  *----------------------------------------------------------------------------
  45  * utils
  46  *----------------------------------------------------------------------------
  47  */
  48
  49 static void set_cursor(GtkWidget *widget, GdkCursorType cursor_type)
  50 {
  51         GdkCursor *cursor = nullptr;
  52
  53         if (!widget || !gtk_widget_get_window(widget)) return;
  54
  55         if (cursor_type > -1) cursor = gdk_cursor_new(cursor_type);
  56         gdk_window_set_cursor(gtk_widget_get_window(widget), cursor);
  57         if (cursor) g_object_unref(G_OBJECT(cursor));
  58         gdk_flush();
  59 }
  60
  61 static void vdtree_busy_push(ViewDir *vd)
  62 {
  63         if (VDTREE(vd)->busy_ref == 0) set_cursor(vd->view, GDK_WATCH);
  64         VDTREE(vd)->busy_ref++;
  65 }
  66
  67 static void vdtree_busy_pop(ViewDir *vd)
  68 {
  69         if (VDTREE(vd)->busy_ref == 1) set_cursor(vd->view, GDK_CURSOR_IS_PIXMAP);
  70         if (VDTREE(vd)->busy_ref > 0) VDTREE(vd)->busy_ref--;
  71 }
  72
  73 gboolean vdtree_find_row(ViewDir *vd, FileData *fd, GtkTreeIter *iter, GtkTreeIter *parent)
  74 {
  75         GtkTreeModel *store;
  76         gboolean valid;
  77
  78         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
  79         if (parent)
  80                 {
  81                 valid = gtk_tree_model_iter_children(store, iter, parent);
  82                 }
  83         else
  84                 {
  85                 valid = gtk_tree_model_get_iter_first(store, iter);
  86                 }
  87         while (valid)
  88                 {
  89                 NodeData *nd;
  90                 GtkTreeIter found;
  91
  92                 gtk_tree_model_get(GTK_TREE_MODEL(store), iter, DIR_COLUMN_POINTER, &nd, -1);
  93                 if (nd->fd == fd) return TRUE;
  94
  95                 if (vdtree_find_row(vd, fd, &found, iter))
  96                         {
  97                         memcpy(iter, &found, sizeof(found));
  98                         return TRUE;
  99                         }
 100
 101                 valid = gtk_tree_model_iter_next(GTK_TREE_MODEL(store), iter);
 102                 }
 103
 104         return FALSE;
 105 }
 106
 107 static void vdtree_icon_set_by_iter(ViewDir *vd, GtkTreeIter *iter, GdkPixbuf *pixbuf)
 108 {
 109         GtkTreeModel *store;
 110         GdkPixbuf *old;
 111
 112         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 113         gtk_tree_model_get(store, iter, DIR_COLUMN_ICON, &old, -1);
 114         if (old != vd->pf->deny)
 115                 {
 116                 gtk_tree_store_set(GTK_TREE_STORE(store), iter, DIR_COLUMN_ICON, pixbuf, -1);
 117                 }
 118 }
 119
 120 static void vdtree_expand_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean expand)
 121 {
 122         GtkTreeModel *store;
 123         GtkTreePath *tpath;
 124         NodeData *nd;
 125         FileData *fd = nullptr;
 126
 127         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 128         tpath = gtk_tree_model_get_path(store, iter);
 129
 130         if (expand)
 131                 {
 132                 /* block signal handler, icon is set here, the caller of vdtree_expand_by_iter must make sure
 133                    that the iter is populated */
 134                 g_signal_handlers_block_by_func(G_OBJECT(vd->view), (gpointer)vdtree_row_expanded, vd);
 135                 gtk_tree_view_expand_row(GTK_TREE_VIEW(vd->view), tpath, FALSE);
 136                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 137                 fd = (nd) ? nd->fd : nullptr;
 138
 139                 if (fd && islink(fd->path))
 140                         {
 141                         vdtree_icon_set_by_iter(vd, iter, vd->pf->link);
 142                         }
 143                 else
 144                         {
 145                         vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 146                         }
 147
 148                 g_signal_handlers_unblock_by_func(G_OBJECT(vd->view), (gpointer)vdtree_row_expanded, vd);
 149                 }
 150         else
 151                 {
 152                 /* signal handler vdtree_row_collapsed is called, it updates the icon */
 153                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(vd->view), tpath);
 154                 }
 155         gtk_tree_path_free(tpath);
 156 }
 157
 158 static void vdtree_expand_by_data(ViewDir *vd, FileData *fd, gboolean expand)
 159 {
 160         GtkTreeIter iter;
 161
 162         if (vd_find_row(vd, fd, &iter))
 163                 {
 164                 vdtree_expand_by_iter(vd, &iter, expand);
 165                 }
 166 }
 167
 168 static void vdtree_node_free(NodeData *nd)
 169 {
 170         if (!nd) return;
 171
 172         if (nd->fd) file_data_unref(nd->fd);
 173         g_free(nd);
 174 }
 175
 176 /*
 177  *----------------------------------------------------------------------------
 178  * dnd
 179  *----------------------------------------------------------------------------
 180  */
 181
 182 static gboolean vdtree_dnd_drop_expand_cb(gpointer data)
 183 {
 184         auto vd = static_cast<ViewDir *>(data);
 185         GtkTreeIter iter;
 186
 187         if (vd->drop_fd && vd_find_row(vd, vd->drop_fd, &iter))
 188                 {
 189                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 190                 vdtree_expand_by_data(vd, vd->drop_fd, TRUE);
 191                 }
 192
 193         VDTREE(vd)->drop_expand_id = 0;
 194         return FALSE;
 195 }
 196
 197 static void vdtree_dnd_drop_expand_cancel(ViewDir *vd)
 198 {
 199         if (VDTREE(vd)->drop_expand_id)
 200                 {
 201                 g_source_remove(VDTREE(vd)->drop_expand_id);
 202                 VDTREE(vd)->drop_expand_id = 0;
 203                 }
 204 }
 205
 206 static void vdtree_dnd_drop_expand(ViewDir *vd)
 207 {
 208         vdtree_dnd_drop_expand_cancel(vd);
 209         VDTREE(vd)->drop_expand_id = g_timeout_add(1000, vdtree_dnd_drop_expand_cb, vd);
 210 }
 211
 212 /*
 213  *----------------------------------------------------------------------------
 214  * parts lists
 215  *----------------------------------------------------------------------------
 216  */
 217
 218 static GList *parts_list(const gchar *path)
 219 {
 220         GList *list = nullptr;
 221         const gchar *strb, *strp;
 222         gint l;
 223
 224         strp = path;
 225
 226         if (*strp != G_DIR_SEPARATOR) return nullptr;
 227
 228         strp++;
 229         strb = strp;
 230         l = 0;
 231
 232         while (*strp != '\0')
 233                 {
 234                 if (*strp == G_DIR_SEPARATOR)
 235                         {
 236                         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 237                         strp++;
 238                         strb = strp;
 239                         l = 0;
 240                         }
 241                 else
 242                         {
 243                         strp++;
 244                         l++;
 245                         }
 246                 }
 247         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 248
 249         list = g_list_reverse(list);
 250
 251         list = g_list_prepend(list, g_strdup(G_DIR_SEPARATOR_S));
 252
 253         return list;
 254 }
 255
 256 static void path_data_free(PathData *pd)
 257 {
 258         if (!pd) return;
 259
 260         g_free(pd->name);
 261         g_free(pd);
 262 }
 263
 264 static GList *parts_list_add_node_points(ViewDir *vd, GList *list)
 265 {
 266         GList *work;
 267         GtkTreeModel *store;
 268         GtkTreeIter iter;
 269         gboolean valid;
 270
 271         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 272         valid = gtk_tree_model_get_iter_first(store, &iter);
 273
 274         work = list;
 275         while (work)
 276                 {
 277                 PathData *pd;
 278                 FileData *fd = nullptr;
 279
 280                 pd = g_new0(PathData, 1);
 281                 pd->name = static_cast<gchar *>(work->data);
 282
 283                 while (valid && !fd)
 284                         {
 285                         NodeData *nd;
 286
 287                         gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 288                         if (nd->fd && strcmp(nd->fd->name, pd->name) == 0)
 289                                 {
 290                                 fd = nd->fd;
 291                                 }
 292                         else
 293                                 {
 294                                 valid = gtk_tree_model_iter_next(store, &iter);
 295                                 }
 296                         }
 297
 298                 pd->node = fd;
 299                 work->data = pd;
 300
 301                 if (fd)
 302                         {
 303                         GtkTreeIter parent;
 304                         memcpy(&parent, &iter, sizeof(parent));
 305                         valid = gtk_tree_model_iter_children(store, &iter, &parent);
 306                         }
 307
 308                 work = work->next;
 309                 }
 310
 311         return list;
 312 }
 313
 314
 315 /*
 316  *----------------------------------------------------------------------------
 317  * node traversal, management
 318  *----------------------------------------------------------------------------
 319  */
 320
 321 static gboolean vdtree_find_iter_by_data(ViewDir *vd, GtkTreeIter *parent, NodeData *nd, GtkTreeIter *iter)
 322 {
 323         GtkTreeModel *store;
 324
 325         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 326         if (!nd || !gtk_tree_model_iter_children(store, iter, parent)) return -1;
 327         do      {
 328                 NodeData *cnd;
 329
 330                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &cnd, -1);
 331                 if (cnd == nd) return TRUE;
 332                 } while (gtk_tree_model_iter_next(store, iter));
 333
 334         return FALSE;
 335 }
 336
 337 static NodeData *vdtree_find_iter_by_name(ViewDir *vd, GtkTreeIter *parent, const gchar *name, GtkTreeIter *iter)
 338 {
 339         GtkTreeModel *store;
 340
 341         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 342         if (!name || !gtk_tree_model_iter_children(store, iter, parent)) return nullptr;
 343         do      {
 344                 NodeData *nd;
 345
 346                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 347                 if (nd && strcmp(nd->fd->name, name) == 0) return nd;
 348                 } while (gtk_tree_model_iter_next(store, iter));
 349
 350         return nullptr;
 351 }
 352
 353 static NodeData *vdtree_find_iter_by_fd(ViewDir *vd, GtkTreeIter *parent, FileData *fd, GtkTreeIter *iter)
 354 {
 355         GtkTreeModel *store;
 356
 357         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 358         if (!fd || !gtk_tree_model_iter_children(store, iter, parent)) return nullptr;
 359         do      {
 360                 NodeData *nd;
 361
 362                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 363                 if (nd && nd->fd == fd) return nd;
 364                 } while (gtk_tree_model_iter_next(store, iter));
 365
 366         return nullptr;
 367 }
 368
 369 static void vdtree_add_by_data(ViewDir *vd, FileData *fd, GtkTreeIter *parent)
 370 {
 371         GtkTreeStore *store;
 372         GtkTreeIter child;
 373         GdkPixbuf *pixbuf;
 374         GtkTreeIter empty;
 375         gchar *link = nullptr;
 376
 377         if (!fd) return;
 378
 379         if (access_file(fd->path, R_OK | X_OK))
 380                 {
 381                 if (islink(fd->path))
 382                         {
 383                         pixbuf = vd->pf->link;
 384                         }
 385                 else if (!access_file(fd->path, W_OK) )
 386                         {
 387                         pixbuf = vd->pf->read_only;
 388                         }
 389                 else
 390                         {
 391                         pixbuf = vd->pf->close;
 392                         }
 393                 }
 394         else
 395                 {
 396                 pixbuf = vd->pf->deny;
 397                 }
 398
 399         auto nd = g_new0(NodeData, 1);
 400         nd->fd = fd;
 401         nd->version = fd->version;
 402         nd->expanded = FALSE;
 403         nd->last_update = time(nullptr);
 404
 405         if (islink(fd->path))
 406                 {
 407                 link = realpath(fd->path, nullptr);
 408                 }
 409         else
 410                 {
 411                 link = nullptr;
 412                 }
 413
 414         store = GTK_TREE_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view)));
 415         gtk_tree_store_append(store, &child, parent);
 416         gtk_tree_store_set(store, &child, DIR_COLUMN_POINTER, nd,
 417                                          DIR_COLUMN_ICON, pixbuf,
 418                                          DIR_COLUMN_NAME, nd->fd->name,
 419                                          DIR_COLUMN_LINK, link,
 420                                          DIR_COLUMN_COLOR, FALSE, -1);
 421
 422         /* all nodes are created with an "empty" node, so that the expander is shown
 423          * this is removed when the child is populated */
 424         auto end = g_new0(NodeData, 1);
 425         end->fd = nullptr;
 426         end->expanded = TRUE;
 427
 428         gtk_tree_store_append(store, &empty, &child);
 429         gtk_tree_store_set(store, &empty, DIR_COLUMN_POINTER, end,
 430                                           DIR_COLUMN_NAME, "empty", -1);
 431
 432         if (parent)
 433                 {
 434                 NodeData *pnd;
 435                 GtkTreePath *tpath;
 436
 437                 gtk_tree_model_get(GTK_TREE_MODEL(store), parent, DIR_COLUMN_POINTER, &pnd, -1);
 438                 tpath = gtk_tree_model_get_path(GTK_TREE_MODEL(store), parent);
 439                 if (options->tree_descend_subdirs &&
 440                     gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath) &&
 441                     !nd->expanded)
 442                         {
 443                         vdtree_populate_path_by_iter(vd, &child, FALSE, vd->dir_fd);
 444                         }
 445                 gtk_tree_path_free(tpath);
 446                 }
 447
 448         g_free(link);
 449 }
 450
 451 gboolean vdtree_populate_path_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean force, FileData *target_fd)
 452 {
 453         GtkTreeModel *store;
 454         GList *list;
 455         GList *work;
 456         GList *old;
 457         time_t current_time;
 458         GtkTreeIter child;
 459         NodeData *nd;
 460         gboolean add_hidden = FALSE;
 461         gchar *link = nullptr;
 462
 463         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 464         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 465
 466         if (!nd) return FALSE;
 467
 468         current_time = time(nullptr);
 469
 470         if (nd->expanded)
 471                 {
 472                 if (!nd->fd || !isdir(nd->fd->path))
 473                         {
 474                         if (vd->click_fd == nd->fd) vd->click_fd = nullptr;
 475                         if (vd->drop_fd == nd->fd) vd->drop_fd = nullptr;
 476                         gtk_tree_store_remove(GTK_TREE_STORE(store), iter);
 477                         vdtree_node_free(nd);
 478                         return FALSE;
 479                         }
 480                 if (!force && current_time - nd->last_update < 2)
 481                         {
 482                         DEBUG_1("Too frequent update of %s", nd->fd->path);
 483                         return TRUE;
 484                         }
 485                 file_data_check_changed_files(nd->fd); /* make sure we have recent info */
 486                 }
 487
 488         /* when hidden files are not enabled, and the user enters a hidden path,
 489          * allow the tree to display that path by specifically inserting the hidden entries
 490          */
 491         if (!options->file_filter.show_hidden_files &&
 492             target_fd &&
 493             strncmp(nd->fd->path, target_fd->path, strlen(nd->fd->path)) == 0)
 494                 {
 495                 gint n;
 496
 497                 n = strlen(nd->fd->path);
 498                 if (target_fd->path[n] == G_DIR_SEPARATOR && target_fd->path[n+1] == '.')
 499                         add_hidden = TRUE;
 500                 }
 501
 502         if (nd->expanded && (!force && !add_hidden) && nd->fd->version == nd->version)
 503                 return TRUE;
 504
 505         vdtree_busy_push(vd);
 506
 507         filelist_read(nd->fd, nullptr, &list);
 508
 509         if (add_hidden)
 510                 {
 511                 gint n;
 512                 gchar *name8;
 513
 514                 n = strlen(nd->fd->path) + 1;
 515
 516                 while (target_fd->path[n] != '\0' && target_fd->path[n] != G_DIR_SEPARATOR) n++;
 517                 name8 = g_strndup(target_fd->path, n);
 518
 519                 if (isdir(name8))
 520                         {
 521                         list = g_list_prepend(list, file_data_new_dir(name8));
 522                         }
 523
 524                 g_free(name8);
 525                 }
 526
 527         old = nullptr;
 528         if (gtk_tree_model_iter_children(store, &child, iter))
 529                 {
 530                 do      {
 531                         NodeData *cnd;
 532
 533                         gtk_tree_model_get(store, &child, DIR_COLUMN_POINTER, &cnd, -1);
 534                         old = g_list_prepend(old, cnd);
 535                         } while (gtk_tree_model_iter_next(store, &child));
 536                 }
 537
 538         work = list;
 539         while (work)
 540                 {
 541                 FileData *fd;
 542
 543                 fd = static_cast<FileData *>(work->data);
 544                 work = work->next;
 545
 546                 if (strcmp(fd->name, ".") == 0 || strcmp(fd->name, "..") == 0)
 547                         {
 548                         file_data_unref(fd);
 549                         }
 550                 else
 551                         {
 552                         NodeData *cnd;
 553
 554                         cnd = vdtree_find_iter_by_fd(vd, iter, fd, &child);
 555                         if (cnd)
 556                                 {
 557                                 if (cnd->expanded && cnd->version != fd->version)
 558                                         {
 559                                         vdtree_populate_path_by_iter(vd, &child, FALSE, target_fd);
 560                                         }
 561
 562                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_NAME, fd->name, -1);
 563
 564                                 if (islink(fd->path))
 565                                         {
 566                                         link = realpath(fd->path, nullptr);
 567                                         }
 568                                 else
 569                                         {
 570                                         link = nullptr;
 571                                         }
 572
 573                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_LINK, link, -1);
 574
 575                                 cnd->version = fd->version;
 576                                 old = g_list_remove(old, cnd);
 577                                 file_data_unref(fd);
 578                                 }
 579                         else
 580                                 {
 581                                 vdtree_add_by_data(vd, fd, iter);
 582                                 }
 583                         }
 584                 }
 585
 586         work = old;
 587         while (work)
 588                 {
 589                 auto cnd = static_cast<NodeData *>(work->data);
 590                 work = work->next;
 591
 592                 if (vd->click_fd == cnd->fd) vd->click_fd = nullptr;
 593                 if (vd->drop_fd == cnd->fd) vd->drop_fd = nullptr;
 594
 595                 if (vdtree_find_iter_by_data(vd, iter, cnd, &child))
 596                         {
 597                         gtk_tree_store_remove(GTK_TREE_STORE(store), &child);
 598                         vdtree_node_free(cnd);
 599                         }
 600                 }
 601
 602         g_list_free(old);
 603         g_list_free(list);
 604
 605         vdtree_busy_pop(vd);
 606
 607         nd->expanded = TRUE;
 608         nd->last_update = current_time;
 609
 610         g_free(link);
 611
 612         return TRUE;
 613 }
 614
 615 FileData *vdtree_populate_path(ViewDir *vd, FileData *target_fd, gboolean expand, gboolean force)
 616 {
 617         GList *list;
 618         GList *work;
 619         FileData *fd = nullptr;
 620
 621         if (!target_fd) return nullptr;
 622
 623         vdtree_busy_push(vd);
 624
 625         list = parts_list(target_fd->path);
 626         list = parts_list_add_node_points(vd, list);
 627
 628         work = list;
 629         while (work)
 630                 {
 631                 auto pd = static_cast<PathData *>(work->data);
 632                 if (pd->node == nullptr)
 633                         {
 634                         PathData *parent_pd;
 635                         GtkTreeIter parent_iter;
 636                         GtkTreeIter iter;
 637                         NodeData *nd;
 638
 639                         if (work == list)
 640                                 {
 641                                 /* should not happen */
 642                                 log_printf("vdtree warning, root node not found\n");
 643                                 g_list_free_full(list, reinterpret_cast<GDestroyNotify>(path_data_free));
 644                                 vdtree_busy_pop(vd);
 645                                 return nullptr;
 646                                 }
 647
 648                         parent_pd = static_cast<PathData *>(work->prev->data);
 649
 650                         if (!vd_find_row(vd, parent_pd->node, &parent_iter) ||
 651                             !vdtree_populate_path_by_iter(vd, &parent_iter, force, target_fd) ||
 652                             (nd = vdtree_find_iter_by_name(vd, &parent_iter, pd->name, &iter)) == nullptr)
 653                                 {
 654                                 log_printf("vdtree warning, aborted at %s\n", parent_pd->name);
 655                                 g_list_free_full(list, reinterpret_cast<GDestroyNotify>(path_data_free));
 656                                 vdtree_busy_pop(vd);
 657                                 return nullptr;
 658                                 }
 659
 660                         pd->node = nd->fd;
 661
 662                         if (pd->node)
 663                                 {
 664                                 if (expand)
 665                                         {
 666                                         vdtree_expand_by_iter(vd, &parent_iter, TRUE);
 667                                         vdtree_expand_by_iter(vd, &iter, TRUE);
 668                                         }
 669                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 670                                 }
 671                         }
 672                 else
 673                         {
 674                         GtkTreeIter iter;
 675
 676                         if (vd_find_row(vd, pd->node, &iter))
 677                                 {
 678                                 if (expand) vdtree_expand_by_iter(vd, &iter, TRUE);
 679                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 680                                 }
 681                         }
 682
 683                 work = work->next;
 684                 }
 685
 686         work = g_list_last(list);
 687         if (work)
 688                 {
 689                 auto pd = static_cast<PathData *>(work->data);
 690                 fd = pd->node;
 691                 }
 692         g_list_free_full(list, reinterpret_cast<GDestroyNotify>(path_data_free));
 693
 694         vdtree_busy_pop(vd);
 695
 696         return fd;
 697 }
 698
 699 /*
 700  *----------------------------------------------------------------------------
 701  * access
 702  *----------------------------------------------------------------------------
 703  */
 704
 705 static gboolean selection_is_ok = FALSE;
 706
 707 static gboolean vdtree_select_cb(GtkTreeSelection *, GtkTreeModel *, GtkTreePath *, gboolean, gpointer)
 708 {
 709         return selection_is_ok;
 710 }
 711
 712 gboolean vdtree_set_fd(ViewDir *vd, FileData *dir_fd)
 713 {
 714         FileData *fd;
 715         GtkTreeIter iter;
 716
 717         if (!dir_fd) return FALSE;
 718         if (vd->dir_fd == dir_fd) return TRUE;
 719
 720         file_data_unref(vd->dir_fd);
 721         vd->dir_fd = file_data_ref(dir_fd);;
 722
 723         fd = vdtree_populate_path(vd, vd->dir_fd, TRUE, FALSE);
 724
 725         if (!fd) return FALSE;
 726
 727         if (vd_find_row(vd, fd, &iter))
 728                 {
 729                 GtkTreeModel *store;
 730                 GtkTreePath *tpath, *old_tpath;
 731                 GtkTreeSelection *selection;
 732
 733                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 734
 735                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 736
 737                 /* hack, such that selection is only allowed to be changed from here */
 738                 selection_is_ok = TRUE;
 739                 gtk_tree_selection_select_iter(selection, &iter);
 740                 selection_is_ok = FALSE;
 741
 742                 gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &old_tpath, nullptr);
 743                 tpath = gtk_tree_model_get_path(store, &iter);
 744
 745                 if (!old_tpath || gtk_tree_path_compare(tpath, old_tpath) != 0)
 746                         {
 747                         /* setting the cursor scrolls the view; do not do that unless it is necessary */
 748                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(vd->view), tpath, nullptr, FALSE);
 749
 750                         /* gtk_tree_view_set_cursor scrolls the window itself, but it sometimes
 751                            does not work (switch from dir_list to dir_tree) */
 752                         tree_view_row_make_visible(GTK_TREE_VIEW(vd->view), &iter, TRUE);
 753                         }
 754                 gtk_tree_path_free(tpath);
 755                 gtk_tree_path_free(old_tpath);
 756                 }
 757
 758         return TRUE;
 759 }
 760
 761 void vdtree_refresh(ViewDir *vd)
 762 {
 763         vdtree_populate_path(vd, vd->dir_fd, FALSE, TRUE);
 764 }
 765
 766 const gchar *vdtree_row_get_path(ViewDir *, gint)
 767 {
 768 /** @FIXME no get row path */
 769         log_printf("FIXME: no get row path\n");
 770         return nullptr;
 771 }
 772
 773 /*
 774  *----------------------------------------------------------------------------
 775  * callbacks
 776  *----------------------------------------------------------------------------
 777  */
 778
 779 gboolean vdtree_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 780 {
 781         auto vd = static_cast<ViewDir *>(data);
 782         GtkTreePath *tpath;
 783         GtkTreeIter iter;
 784         FileData *fd = nullptr;
 785
 786         gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &tpath, nullptr);
 787         if (tpath)
 788                 {
 789                 GtkTreeModel *store;
 790                 NodeData *nd;
 791
 792                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 793                 gtk_tree_model_get_iter(store, &iter, tpath);
 794                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 795
 796                 gtk_tree_path_free(tpath);
 797
 798                 fd = (nd) ? nd->fd : nullptr;
 799                 }
 800
 801         switch (event->keyval)
 802                 {
 803                 case GDK_KEY_Menu:
 804                         vd->click_fd = fd;
 805                         vd_color_set(vd, vd->click_fd, TRUE);
 806
 807                         vd->popup = vd_pop_menu(vd, vd->click_fd);
 808                         gtk_menu_popup_at_pointer(GTK_MENU(vd->popup), nullptr);
 809
 810                         return TRUE;
 811                         break;
 812                 case GDK_KEY_plus:
 813                 case GDK_KEY_Right:
 814                 case GDK_KEY_KP_Add:
 815                         if (fd)
 816                                 {
 817                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 818
 819                                 if (islink(fd->path))
 820                                         {
 821                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->link);
 822                                         }
 823                                 else
 824                                         {
 825                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 826                                         }
 827                                 }
 828                         break;
 829                 }
 830
 831         return FALSE;
 832 }
 833
 834 static gboolean vdtree_clicked_on_expander(GtkTreeView *treeview, GtkTreePath *tpath,
 835                                            GtkTreeViewColumn *column, gint x, gint, gint *left_of_expander)
 836 {
 837         gint depth;
 838         gint size;
 839         gint sep;
 840         gint exp_width;
 841
 842         if (column != gtk_tree_view_get_expander_column(treeview)) return FALSE;
 843
 844         gtk_widget_style_get(GTK_WIDGET(treeview), "expander-size", &size, "horizontal-separator", &sep, NULL);
 845         depth = gtk_tree_path_get_depth(tpath);
 846
 847         exp_width = sep + size + sep;
 848
 849         if (x <= depth * exp_width)
 850                 {
 851                 if (left_of_expander) *left_of_expander = !(x >= (depth - 1) * exp_width);
 852                 return TRUE;
 853                 }
 854
 855         return FALSE;
 856 }
 857
 858 gboolean vdtree_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
 859 {
 860         auto vd = static_cast<ViewDir *>(data);
 861         GtkTreePath *tpath;
 862         GtkTreeViewColumn *column;
 863         GtkTreeIter iter;
 864         NodeData *nd = nullptr;
 865         FileData *fd;
 866
 867         if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
 868                                           &tpath, &column, nullptr, nullptr))
 869                 {
 870                 GtkTreeModel *store;
 871                 gint left_of_expander;
 872
 873                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 874                 gtk_tree_model_get_iter(store, &iter, tpath);
 875                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 876                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(widget), tpath, nullptr, FALSE);
 877
 878                 if (vdtree_clicked_on_expander(GTK_TREE_VIEW(widget), tpath, column, bevent->x, bevent->y, &left_of_expander))
 879                         {
 880                         vd->click_fd = nullptr;
 881
 882                         /* clicking this region should automatically reveal an expander, if necessary
 883                          * treeview bug: the expander will not expand until a button_motion_event highlights it.
 884                          */
 885                         if (bevent->button == MOUSE_BUTTON_LEFT &&
 886                             !left_of_expander &&
 887                             !gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath))
 888                                 {
 889                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 890
 891                                 fd = (nd) ? nd->fd : nullptr;
 892                                 if (fd && islink(fd->path))
 893                                         {
 894                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->link);
 895                                         }
 896                                 else
 897                                         {
 898                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 899                                         }
 900                                 }
 901
 902                         gtk_tree_path_free(tpath);
 903                         return FALSE;
 904                         }
 905
 906                 gtk_tree_path_free(tpath);
 907                 }
 908
 909         vd->click_fd = (nd) ? nd->fd : nullptr;
 910         vd_color_set(vd, vd->click_fd, TRUE);
 911
 912         if (bevent->button == MOUSE_BUTTON_RIGHT)
 913                 {
 914                 vd->popup = vd_pop_menu(vd, vd->click_fd);
 915                 gtk_menu_popup_at_pointer(GTK_MENU(vd->popup), nullptr);
 916                 }
 917
 918         return (bevent->button != MOUSE_BUTTON_LEFT);
 919 }
 920
 921 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 922 {
 923         auto vd = static_cast<ViewDir *>(data);
 924         GtkTreeModel *store;
 925         NodeData *nd = nullptr;
 926         FileData *fd;
 927
 928         gtk_tree_view_set_tooltip_column(treeview, DIR_COLUMN_LINK);
 929
 930         vdtree_populate_path_by_iter(vd, iter, FALSE, nullptr);
 931         store = gtk_tree_view_get_model(GTK_TREE_VIEW(treeview));
 932
 933         gtk_tree_model_get_iter(store, iter, tpath);
 934         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 935
 936         fd = (nd) ? nd->fd : nullptr;
 937         if (fd && islink(fd->path))
 938                 {
 939                 vdtree_icon_set_by_iter(vd, iter, vd->pf->link);
 940                 }
 941         else
 942                 {
 943                 vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 944                 }
 945 }
 946
 947 static void vdtree_row_collapsed(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 948 {
 949         auto vd = static_cast<ViewDir *>(data);
 950         GtkTreeModel *store;
 951         NodeData *nd = nullptr;
 952         FileData *fd;
 953
 954         vdtree_populate_path_by_iter(vd, iter, FALSE, nullptr);
 955         store = gtk_tree_view_get_model(GTK_TREE_VIEW(treeview));
 956
 957         gtk_tree_model_get_iter(store, iter, tpath);
 958         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 959
 960         fd = (nd) ? nd->fd : nullptr;
 961         if (fd && islink(fd->path))
 962                 {
 963                 vdtree_icon_set_by_iter(vd, iter, vd->pf->link);
 964                 }
 965         else
 966                 {
 967                 vdtree_icon_set_by_iter(vd, iter, vd->pf->close);
 968                 }
 969 }
 970
 971 static gint vdtree_sort_cb(GtkTreeModel *store, GtkTreeIter *a, GtkTreeIter *b, gpointer)
 972 {
 973         NodeData *nda;
 974         NodeData *ndb;
 975
 976         gtk_tree_model_get(store, a, DIR_COLUMN_POINTER, &nda, -1);
 977         gtk_tree_model_get(store, b, DIR_COLUMN_POINTER, &ndb, -1);
 978
 979         if (!nda->fd && !ndb->fd) return 0;
 980         if (!nda->fd) return 1;
 981         if (!ndb->fd) return -1;
 982
 983         if (options->file_sort.case_sensitive)
 984                 return strcmp(nda->fd->collate_key_name, ndb->fd->collate_key_name);
 985         else
 986                 return strcmp(nda->fd->collate_key_name_nocase, ndb->fd->collate_key_name_nocase);
 987 }
 988
 989 /*
 990  *----------------------------------------------------------------------------
 991  * core
 992  *----------------------------------------------------------------------------
 993  */
 994
 995 static void vdtree_setup_root(ViewDir *vd)
 996 {
 997         const gchar *path = G_DIR_SEPARATOR_S;
 998         FileData *fd;
 999
1000
1001         fd = file_data_new_dir(path);
1002         vdtree_add_by_data(vd, fd, nullptr);
1003
1004         vdtree_expand_by_data(vd, fd, TRUE);
1005         vdtree_populate_path(vd, fd, FALSE, FALSE);
1006 }
1007
1008 static gboolean vdtree_destroy_node_cb(GtkTreeModel *store, GtkTreePath *, GtkTreeIter *iter, gpointer)
1009 {
1010         NodeData *nd;
1011
1012         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
1013         vdtree_node_free(nd);
1014
1015         return FALSE;
1016 }
1017
1018 void vdtree_destroy_cb(GtkWidget *, gpointer data)
1019 {
1020         auto vd = static_cast<ViewDir *>(data);
1021         GtkTreeModel *store;
1022
1023         vdtree_dnd_drop_expand_cancel(vd);
1024         vd_dnd_drop_scroll_cancel(vd);
1025         widget_auto_scroll_stop(vd->view);
1026
1027         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
1028         gtk_tree_model_foreach(store, vdtree_destroy_node_cb, vd);
1029 }
1030
1031 ViewDir *vdtree_new(ViewDir *vd, FileData *)
1032 {
1033         GtkTreeStore *store;
1034         GtkTreeSelection *selection;
1035         GtkTreeViewColumn *column;
1036         GtkCellRenderer *renderer;
1037
1038         vd->info = g_new0(ViewDirInfoTree, 1);
1039
1040         vd->type = DIRVIEW_TREE;
1041
1042         vd->dnd_drop_leave_func = vdtree_dnd_drop_expand_cancel;
1043         vd->dnd_drop_update_func = vdtree_dnd_drop_expand;
1044
1045         store = gtk_tree_store_new(6, G_TYPE_POINTER, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_INT, G_TYPE_STRING, G_TYPE_STRING);
1046         vd->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
1047         g_object_unref(store);
1048
1049         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(vd->view), FALSE);
1050         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(vd->view), FALSE);
1051         gtk_tree_sortable_set_default_sort_func(GTK_TREE_SORTABLE(store), vdtree_sort_cb, vd, nullptr);
1052         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(store),
1053                                              GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, GTK_SORT_ASCENDING);
1054
1055         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
1056         gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
1057         gtk_tree_selection_set_select_function(selection, vdtree_select_cb, vd, nullptr);
1058
1059         column = gtk_tree_view_column_new();
1060         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1061
1062         renderer = gtk_cell_renderer_pixbuf_new();
1063         gtk_tree_view_column_pack_start(column, renderer, FALSE);
1064         gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", DIR_COLUMN_ICON);
1065         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, nullptr);
1066
1067         renderer = gtk_cell_renderer_text_new();
1068         gtk_tree_view_column_pack_start(column, renderer, TRUE);
1069         gtk_tree_view_column_add_attribute(column, renderer, "text", DIR_COLUMN_NAME);
1070         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, nullptr);
1071
1072         gtk_tree_view_append_column(GTK_TREE_VIEW(vd->view), column);
1073
1074         gtk_tree_view_set_tooltip_column(GTK_TREE_VIEW(vd->view), DIR_COLUMN_LINK);
1075
1076         vdtree_setup_root(vd);
1077
1078         g_signal_connect(G_OBJECT(vd->view), "row_expanded",
1079                          G_CALLBACK(vdtree_row_expanded), vd);
1080         g_signal_connect(G_OBJECT(vd->view), "row_collapsed",
1081                          G_CALLBACK(vdtree_row_collapsed), vd);
1082
1083         return vd;
1084 }
1085 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */