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 "layout.h"
  27 #include "ui-fileops.h"
  28 #include "ui-tree-edit.h"
  29 #include "view-dir.h"
  30
  31 struct ViewDirInfoTree
  32 {
  33         guint drop_expand_id; /**< event source id */
  34         gint busy_ref;
  35 };
  36
  37 #define VDTREE(_vd_) ((ViewDirInfoTree *)((_vd_)->info))
  38
  39
  40 struct PathData
  41 {
  42         gchar *name;
  43         FileData *node;
  44 };
  45
  46
  47 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data);
  48
  49
  50 /*
  51  *----------------------------------------------------------------------------
  52  * utils
  53  *----------------------------------------------------------------------------
  54  */
  55
  56 static void set_cursor(GtkWidget *widget, GdkCursorType cursor_type)
  57 {
  58         GdkCursor *cursor = nullptr;
  59         GdkDisplay *display;
  60
  61         if (!widget || !gtk_widget_get_window(widget)) return;
  62
  63         display = gdk_display_get_default();
  64
  65         if (cursor_type > -1) cursor = gdk_cursor_new_for_display(display, cursor_type);
  66         gdk_window_set_cursor(gtk_widget_get_window(widget), cursor);
  67         if (cursor) g_object_unref(G_OBJECT(cursor));
  68         gdk_flush();
  69 }
  70
  71 static void vdtree_busy_push(ViewDir *vd)
  72 {
  73         if (VDTREE(vd)->busy_ref == 0) set_cursor(vd->view, GDK_WATCH);
  74         VDTREE(vd)->busy_ref++;
  75 }
  76
  77 static void vdtree_busy_pop(ViewDir *vd)
  78 {
  79         if (VDTREE(vd)->busy_ref == 1) set_cursor(vd->view, GDK_CURSOR_IS_PIXMAP);
  80         if (VDTREE(vd)->busy_ref > 0) VDTREE(vd)->busy_ref--;
  81 }
  82
  83 gboolean vdtree_find_row(ViewDir *vd, FileData *fd, GtkTreeIter *iter, GtkTreeIter *parent)
  84 {
  85         GtkTreeModel *store;
  86         gboolean valid;
  87
  88         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
  89         if (parent)
  90                 {
  91                 valid = gtk_tree_model_iter_children(store, iter, parent);
  92                 }
  93         else
  94                 {
  95                 valid = gtk_tree_model_get_iter_first(store, iter);
  96                 }
  97         while (valid)
  98                 {
  99                 NodeData *nd;
 100                 GtkTreeIter found;
 101
 102                 gtk_tree_model_get(GTK_TREE_MODEL(store), iter, DIR_COLUMN_POINTER, &nd, -1);
 103                 if (nd->fd == fd) return TRUE;
 104
 105                 if (vdtree_find_row(vd, fd, &found, iter))
 106                         {
 107                         memcpy(iter, &found, sizeof(found));
 108                         return TRUE;
 109                         }
 110
 111                 valid = gtk_tree_model_iter_next(GTK_TREE_MODEL(store), iter);
 112                 }
 113
 114         return FALSE;
 115 }
 116
 117 static void vdtree_icon_set_by_iter(ViewDir *vd, GtkTreeIter *iter, GdkPixbuf *pixbuf)
 118 {
 119         GtkTreeModel *store;
 120         GdkPixbuf *old;
 121
 122         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 123         gtk_tree_model_get(store, iter, DIR_COLUMN_ICON, &old, -1);
 124         if (old != vd->pf->deny)
 125                 {
 126                 gtk_tree_store_set(GTK_TREE_STORE(store), iter, DIR_COLUMN_ICON, pixbuf, -1);
 127                 }
 128 }
 129
 130 static void vdtree_expand_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean expand)
 131 {
 132         GtkTreeModel *store;
 133         GtkTreePath *tpath;
 134         NodeData *nd;
 135         FileData *fd = nullptr;
 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), (gpointer)vdtree_row_expanded, vd);
 145                 gtk_tree_view_expand_row(GTK_TREE_VIEW(vd->view), tpath, FALSE);
 146                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 147                 fd = (nd) ? nd->fd : nullptr;
 148
 149                 if (fd && islink(fd->path))
 150                         {
 151                         vdtree_icon_set_by_iter(vd, iter, vd->pf->link);
 152                         }
 153                 else
 154                         {
 155                         vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 156                         }
 157
 158                 g_signal_handlers_unblock_by_func(G_OBJECT(vd->view), (gpointer)vdtree_row_expanded, vd);
 159                 }
 160         else
 161                 {
 162                 /* signal handler vdtree_row_collapsed is called, it updates the icon */
 163                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(vd->view), tpath);
 164                 }
 165         gtk_tree_path_free(tpath);
 166 }
 167
 168 static void vdtree_expand_by_data(ViewDir *vd, FileData *fd, gboolean expand)
 169 {
 170         GtkTreeIter iter;
 171
 172         if (vd_find_row(vd, fd, &iter))
 173                 {
 174                 vdtree_expand_by_iter(vd, &iter, expand);
 175                 }
 176 }
 177
 178 static void vdtree_node_free(NodeData *nd)
 179 {
 180         if (!nd) return;
 181
 182         if (nd->fd) file_data_unref(nd->fd);
 183         g_free(nd);
 184 }
 185
 186 /*
 187  *----------------------------------------------------------------------------
 188  * dnd
 189  *----------------------------------------------------------------------------
 190  */
 191
 192 static gboolean vdtree_dnd_drop_expand_cb(gpointer data)
 193 {
 194         auto vd = static_cast<ViewDir *>(data);
 195         GtkTreeIter iter;
 196
 197         if (vd->drop_fd && vd_find_row(vd, vd->drop_fd, &iter))
 198                 {
 199                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 200                 vdtree_expand_by_data(vd, vd->drop_fd, TRUE);
 201                 }
 202
 203         VDTREE(vd)->drop_expand_id = 0;
 204         return FALSE;
 205 }
 206
 207 static void vdtree_dnd_drop_expand_cancel(ViewDir *vd)
 208 {
 209         if (VDTREE(vd)->drop_expand_id)
 210                 {
 211                 g_source_remove(VDTREE(vd)->drop_expand_id);
 212                 VDTREE(vd)->drop_expand_id = 0;
 213                 }
 214 }
 215
 216 static void vdtree_dnd_drop_expand(ViewDir *vd)
 217 {
 218         vdtree_dnd_drop_expand_cancel(vd);
 219         VDTREE(vd)->drop_expand_id = g_timeout_add(1000, vdtree_dnd_drop_expand_cb, vd);
 220 }
 221
 222 /*
 223  *----------------------------------------------------------------------------
 224  * parts lists
 225  *----------------------------------------------------------------------------
 226  */
 227
 228 static GList *parts_list(const gchar *path)
 229 {
 230         GList *list = nullptr;
 231         const gchar *strb, *strp;
 232         gint l;
 233
 234         strp = path;
 235
 236         if (*strp != G_DIR_SEPARATOR) return nullptr;
 237
 238         strp++;
 239         strb = strp;
 240         l = 0;
 241
 242         while (*strp != '\0')
 243                 {
 244                 if (*strp == G_DIR_SEPARATOR)
 245                         {
 246                         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 247                         strp++;
 248                         strb = strp;
 249                         l = 0;
 250                         }
 251                 else
 252                         {
 253                         strp++;
 254                         l++;
 255                         }
 256                 }
 257         if (l > 0) list = g_list_prepend(list, g_strndup(strb, l));
 258
 259         list = g_list_reverse(list);
 260
 261         list = g_list_prepend(list, g_strdup(G_DIR_SEPARATOR_S));
 262
 263         return list;
 264 }
 265
 266 static void path_data_free(PathData *pd)
 267 {
 268         if (!pd) return;
 269
 270         g_free(pd->name);
 271         g_free(pd);
 272 }
 273
 274 static GList *parts_list_add_node_points(ViewDir *vd, GList *list)
 275 {
 276         GList *work;
 277         GtkTreeModel *store;
 278         GtkTreeIter iter;
 279         gboolean valid;
 280
 281         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 282         valid = gtk_tree_model_get_iter_first(store, &iter);
 283
 284         work = list;
 285         while (work)
 286                 {
 287                 PathData *pd;
 288                 FileData *fd = nullptr;
 289
 290                 pd = g_new0(PathData, 1);
 291                 pd->name = static_cast<gchar *>(work->data);
 292
 293                 while (valid && !fd)
 294                         {
 295                         NodeData *nd;
 296
 297                         gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 298                         if (nd->fd && strcmp(nd->fd->name, pd->name) == 0)
 299                                 {
 300                                 fd = nd->fd;
 301                                 }
 302                         else
 303                                 {
 304                                 valid = gtk_tree_model_iter_next(store, &iter);
 305                                 }
 306                         }
 307
 308                 pd->node = fd;
 309                 work->data = pd;
 310
 311                 if (fd)
 312                         {
 313                         GtkTreeIter parent;
 314                         memcpy(&parent, &iter, sizeof(parent));
 315                         valid = gtk_tree_model_iter_children(store, &iter, &parent);
 316                         }
 317
 318                 work = work->next;
 319                 }
 320
 321         return list;
 322 }
 323
 324
 325 /*
 326  *----------------------------------------------------------------------------
 327  * node traversal, management
 328  *----------------------------------------------------------------------------
 329  */
 330
 331 static gboolean vdtree_find_iter_by_data(ViewDir *vd, GtkTreeIter *parent, NodeData *nd, GtkTreeIter *iter)
 332 {
 333         GtkTreeModel *store;
 334
 335         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 336         if (!nd || !gtk_tree_model_iter_children(store, iter, parent)) return -1;
 337         do      {
 338                 NodeData *cnd;
 339
 340                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &cnd, -1);
 341                 if (cnd == nd) return TRUE;
 342                 } while (gtk_tree_model_iter_next(store, iter));
 343
 344         return FALSE;
 345 }
 346
 347 static NodeData *vdtree_find_iter_by_name(ViewDir *vd, GtkTreeIter *parent, const gchar *name, GtkTreeIter *iter)
 348 {
 349         GtkTreeModel *store;
 350
 351         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 352         if (!name || !gtk_tree_model_iter_children(store, iter, parent)) return nullptr;
 353         do      {
 354                 NodeData *nd;
 355
 356                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 357                 if (nd && strcmp(nd->fd->name, name) == 0) return nd;
 358                 } while (gtk_tree_model_iter_next(store, iter));
 359
 360         return nullptr;
 361 }
 362
 363 static NodeData *vdtree_find_iter_by_fd(ViewDir *vd, GtkTreeIter *parent, FileData *fd, GtkTreeIter *iter)
 364 {
 365         GtkTreeModel *store;
 366
 367         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 368         if (!fd || !gtk_tree_model_iter_children(store, iter, parent)) return nullptr;
 369         do      {
 370                 NodeData *nd;
 371
 372                 gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 373                 if (nd && nd->fd == fd) return nd;
 374                 } while (gtk_tree_model_iter_next(store, iter));
 375
 376         return nullptr;
 377 }
 378
 379 static void vdtree_add_by_data(ViewDir *vd, FileData *fd, GtkTreeIter *parent)
 380 {
 381         GtkTreeStore *store;
 382         GtkTreeIter child;
 383         GdkPixbuf *pixbuf;
 384         GtkTreeIter empty;
 385         gchar *link = nullptr;
 386
 387         if (!fd) return;
 388
 389         if (access_file(fd->path, R_OK | X_OK))
 390                 {
 391                 if (islink(fd->path))
 392                         {
 393                         pixbuf = vd->pf->link;
 394                         }
 395                 else if (!access_file(fd->path, W_OK) )
 396                         {
 397                         pixbuf = vd->pf->read_only;
 398                         }
 399                 else
 400                         {
 401                         pixbuf = vd->pf->close;
 402                         }
 403                 }
 404         else
 405                 {
 406                 pixbuf = vd->pf->deny;
 407                 }
 408
 409         auto nd = g_new0(NodeData, 1);
 410         nd->fd = fd;
 411         nd->version = fd->version;
 412         nd->expanded = FALSE;
 413         nd->last_update = time(nullptr);
 414
 415         if (islink(fd->path))
 416                 {
 417                 link = realpath(fd->path, nullptr);
 418                 }
 419         else
 420                 {
 421                 link = nullptr;
 422                 }
 423
 424         store = GTK_TREE_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view)));
 425         gtk_tree_store_append(store, &child, parent);
 426         gtk_tree_store_set(store, &child, DIR_COLUMN_POINTER, nd,
 427                                          DIR_COLUMN_ICON, pixbuf,
 428                                          DIR_COLUMN_NAME, nd->fd->name,
 429                                          DIR_COLUMN_LINK, link,
 430                                          DIR_COLUMN_COLOR, FALSE, -1);
 431
 432         /* all nodes are created with an "empty" node, so that the expander is shown
 433          * this is removed when the child is populated */
 434         auto end = g_new0(NodeData, 1);
 435         end->fd = nullptr;
 436         end->expanded = TRUE;
 437
 438         gtk_tree_store_append(store, &empty, &child);
 439         gtk_tree_store_set(store, &empty, DIR_COLUMN_POINTER, end,
 440                                           DIR_COLUMN_NAME, "empty", -1);
 441
 442         if (parent)
 443                 {
 444                 NodeData *pnd;
 445                 GtkTreePath *tpath;
 446
 447                 gtk_tree_model_get(GTK_TREE_MODEL(store), parent, DIR_COLUMN_POINTER, &pnd, -1);
 448                 tpath = gtk_tree_model_get_path(GTK_TREE_MODEL(store), parent);
 449                 if (options->tree_descend_subdirs &&
 450                     gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath) &&
 451                     !nd->expanded)
 452                         {
 453                         vdtree_populate_path_by_iter(vd, &child, FALSE, vd->dir_fd);
 454                         }
 455                 gtk_tree_path_free(tpath);
 456                 }
 457
 458         g_free(link);
 459 }
 460
 461 gboolean vdtree_populate_path_by_iter(ViewDir *vd, GtkTreeIter *iter, gboolean force, FileData *target_fd)
 462 {
 463         GtkTreeModel *store;
 464         GList *list;
 465         GList *work;
 466         GList *old;
 467         time_t current_time;
 468         GtkTreeIter child;
 469         NodeData *nd;
 470         gboolean add_hidden = FALSE;
 471         gchar *link = nullptr;
 472
 473         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 474         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 475
 476         if (!nd) return FALSE;
 477
 478         current_time = time(nullptr);
 479
 480         if (nd->expanded)
 481                 {
 482                 if (!nd->fd || !isdir(nd->fd->path))
 483                         {
 484                         if (vd->click_fd == nd->fd) vd->click_fd = nullptr;
 485                         if (vd->drop_fd == nd->fd) vd->drop_fd = nullptr;
 486                         gtk_tree_store_remove(GTK_TREE_STORE(store), iter);
 487                         vdtree_node_free(nd);
 488                         return FALSE;
 489                         }
 490                 if (!force && current_time - nd->last_update < 2)
 491                         {
 492                         DEBUG_1("Too frequent update of %s", nd->fd->path);
 493                         return TRUE;
 494                         }
 495                 file_data_check_changed_files(nd->fd); /* make sure we have recent info */
 496                 }
 497
 498         /* when hidden files are not enabled, and the user enters a hidden path,
 499          * allow the tree to display that path by specifically inserting the hidden entries
 500          */
 501         if (!options->file_filter.show_hidden_files &&
 502             target_fd &&
 503             strncmp(nd->fd->path, target_fd->path, strlen(nd->fd->path)) == 0)
 504                 {
 505                 gint n;
 506
 507                 n = strlen(nd->fd->path);
 508                 if (target_fd->path[n] == G_DIR_SEPARATOR && target_fd->path[n+1] == '.')
 509                         add_hidden = TRUE;
 510                 }
 511
 512         if (nd->expanded && (!force && !add_hidden) && nd->fd->version == nd->version)
 513                 return TRUE;
 514
 515         vdtree_busy_push(vd);
 516
 517         filelist_read(nd->fd, nullptr, &list);
 518
 519         if (add_hidden)
 520                 {
 521                 gint n;
 522                 gchar *name8;
 523
 524                 n = strlen(nd->fd->path) + 1;
 525
 526                 while (target_fd->path[n] != '\0' && target_fd->path[n] != G_DIR_SEPARATOR) n++;
 527                 name8 = g_strndup(target_fd->path, n);
 528
 529                 if (isdir(name8))
 530                         {
 531                         list = g_list_prepend(list, file_data_new_dir(name8));
 532                         }
 533
 534                 g_free(name8);
 535                 }
 536
 537         old = nullptr;
 538         if (gtk_tree_model_iter_children(store, &child, iter))
 539                 {
 540                 do      {
 541                         NodeData *cnd;
 542
 543                         gtk_tree_model_get(store, &child, DIR_COLUMN_POINTER, &cnd, -1);
 544                         old = g_list_prepend(old, cnd);
 545                         } while (gtk_tree_model_iter_next(store, &child));
 546                 }
 547
 548         work = list;
 549         while (work)
 550                 {
 551                 FileData *fd;
 552
 553                 fd = static_cast<FileData *>(work->data);
 554                 work = work->next;
 555
 556                 if (strcmp(fd->name, ".") == 0 || strcmp(fd->name, "..") == 0)
 557                         {
 558                         file_data_unref(fd);
 559                         }
 560                 else
 561                         {
 562                         NodeData *cnd;
 563
 564                         cnd = vdtree_find_iter_by_fd(vd, iter, fd, &child);
 565                         if (cnd)
 566                                 {
 567                                 if (cnd->expanded && cnd->version != fd->version)
 568                                         {
 569                                         vdtree_populate_path_by_iter(vd, &child, FALSE, target_fd);
 570                                         }
 571
 572                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_NAME, fd->name, -1);
 573
 574                                 if (islink(fd->path))
 575                                         {
 576                                         link = realpath(fd->path, nullptr);
 577                                         }
 578                                 else
 579                                         {
 580                                         link = nullptr;
 581                                         }
 582
 583                                 gtk_tree_store_set(GTK_TREE_STORE(store), &child, DIR_COLUMN_LINK, link, -1);
 584
 585                                 cnd->version = fd->version;
 586                                 old = g_list_remove(old, cnd);
 587                                 file_data_unref(fd);
 588                                 }
 589                         else
 590                                 {
 591                                 vdtree_add_by_data(vd, fd, iter);
 592                                 }
 593                         }
 594                 }
 595
 596         work = old;
 597         while (work)
 598                 {
 599                 auto cnd = static_cast<NodeData *>(work->data);
 600                 work = work->next;
 601
 602                 if (vd->click_fd == cnd->fd) vd->click_fd = nullptr;
 603                 if (vd->drop_fd == cnd->fd) vd->drop_fd = nullptr;
 604
 605                 if (vdtree_find_iter_by_data(vd, iter, cnd, &child))
 606                         {
 607                         gtk_tree_store_remove(GTK_TREE_STORE(store), &child);
 608                         vdtree_node_free(cnd);
 609                         }
 610                 }
 611
 612         g_list_free(old);
 613         g_list_free(list);
 614
 615         vdtree_busy_pop(vd);
 616
 617         nd->expanded = TRUE;
 618         nd->last_update = current_time;
 619
 620         g_free(link);
 621
 622         return TRUE;
 623 }
 624
 625 FileData *vdtree_populate_path(ViewDir *vd, FileData *target_fd, gboolean expand, gboolean force)
 626 {
 627         GList *list;
 628         GList *work;
 629         FileData *fd = nullptr;
 630
 631         if (!target_fd) return nullptr;
 632
 633         vdtree_busy_push(vd);
 634
 635         list = parts_list(target_fd->path);
 636         list = parts_list_add_node_points(vd, list);
 637
 638         work = list;
 639         while (work)
 640                 {
 641                 auto pd = static_cast<PathData *>(work->data);
 642                 if (pd->node == nullptr)
 643                         {
 644                         PathData *parent_pd;
 645                         GtkTreeIter parent_iter;
 646                         GtkTreeIter iter;
 647                         NodeData *nd;
 648
 649                         if (work == list)
 650                                 {
 651                                 /* should not happen */
 652                                 log_printf("vdtree warning, root node not found\n");
 653                                 g_list_free_full(list, reinterpret_cast<GDestroyNotify>(path_data_free));
 654                                 vdtree_busy_pop(vd);
 655                                 return nullptr;
 656                                 }
 657
 658                         parent_pd = static_cast<PathData *>(work->prev->data);
 659
 660                         if (!vd_find_row(vd, parent_pd->node, &parent_iter) ||
 661                             !vdtree_populate_path_by_iter(vd, &parent_iter, force, target_fd) ||
 662                             (nd = vdtree_find_iter_by_name(vd, &parent_iter, pd->name, &iter)) == nullptr)
 663                                 {
 664                                 log_printf("vdtree warning, aborted at %s\n", parent_pd->name);
 665                                 g_list_free_full(list, reinterpret_cast<GDestroyNotify>(path_data_free));
 666                                 vdtree_busy_pop(vd);
 667                                 return nullptr;
 668                                 }
 669
 670                         pd->node = nd->fd;
 671
 672                         if (pd->node)
 673                                 {
 674                                 if (expand)
 675                                         {
 676                                         vdtree_expand_by_iter(vd, &parent_iter, TRUE);
 677                                         vdtree_expand_by_iter(vd, &iter, TRUE);
 678                                         }
 679                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 680                                 }
 681                         }
 682                 else
 683                         {
 684                         GtkTreeIter iter;
 685
 686                         if (vd_find_row(vd, pd->node, &iter))
 687                                 {
 688                                 if (expand) vdtree_expand_by_iter(vd, &iter, TRUE);
 689                                 vdtree_populate_path_by_iter(vd, &iter, force, target_fd);
 690                                 }
 691                         }
 692
 693                 work = work->next;
 694                 }
 695
 696         work = g_list_last(list);
 697         if (work)
 698                 {
 699                 auto pd = static_cast<PathData *>(work->data);
 700                 fd = pd->node;
 701                 }
 702         g_list_free_full(list, reinterpret_cast<GDestroyNotify>(path_data_free));
 703
 704         vdtree_busy_pop(vd);
 705
 706         return fd;
 707 }
 708
 709 /*
 710  *----------------------------------------------------------------------------
 711  * access
 712  *----------------------------------------------------------------------------
 713  */
 714
 715 static gboolean selection_is_ok = FALSE;
 716
 717 static gboolean vdtree_select_cb(GtkTreeSelection *, GtkTreeModel *, GtkTreePath *, gboolean, gpointer)
 718 {
 719         return selection_is_ok;
 720 }
 721
 722 gboolean vdtree_set_fd(ViewDir *vd, FileData *dir_fd)
 723 {
 724         FileData *fd;
 725         GtkTreeIter iter;
 726
 727         if (!dir_fd) return FALSE;
 728         if (vd->dir_fd == dir_fd) return TRUE;
 729
 730         file_data_unref(vd->dir_fd);
 731         vd->dir_fd = file_data_ref(dir_fd);;
 732
 733         fd = vdtree_populate_path(vd, vd->dir_fd, TRUE, FALSE);
 734
 735         if (!fd) return FALSE;
 736
 737         if (vd_find_row(vd, fd, &iter))
 738                 {
 739                 GtkTreeModel *store;
 740                 GtkTreePath *tpath, *old_tpath;
 741                 GtkTreeSelection *selection;
 742
 743                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
 744
 745                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
 746
 747                 /* hack, such that selection is only allowed to be changed from here */
 748                 selection_is_ok = TRUE;
 749                 gtk_tree_selection_select_iter(selection, &iter);
 750                 selection_is_ok = FALSE;
 751
 752                 gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &old_tpath, nullptr);
 753                 tpath = gtk_tree_model_get_path(store, &iter);
 754
 755                 if (!old_tpath || gtk_tree_path_compare(tpath, old_tpath) != 0)
 756                         {
 757                         /* setting the cursor scrolls the view; do not do that unless it is necessary */
 758                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(vd->view), tpath, nullptr, FALSE);
 759
 760                         /* gtk_tree_view_set_cursor scrolls the window itself, but it sometimes
 761                            does not work (switch from dir_list to dir_tree) */
 762                         tree_view_row_make_visible(GTK_TREE_VIEW(vd->view), &iter, TRUE);
 763                         }
 764                 gtk_tree_path_free(tpath);
 765                 gtk_tree_path_free(old_tpath);
 766                 }
 767
 768         return TRUE;
 769 }
 770
 771 void vdtree_refresh(ViewDir *vd)
 772 {
 773         vdtree_populate_path(vd, vd->dir_fd, FALSE, TRUE);
 774 }
 775
 776 const gchar *vdtree_row_get_path(ViewDir *, gint)
 777 {
 778 /** @FIXME no get row path */
 779         log_printf("FIXME: no get row path\n");
 780         return nullptr;
 781 }
 782
 783 /*
 784  *----------------------------------------------------------------------------
 785  * callbacks
 786  *----------------------------------------------------------------------------
 787  */
 788
 789 gboolean vdtree_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 790 {
 791         auto vd = static_cast<ViewDir *>(data);
 792         GtkTreePath *tpath;
 793         GtkTreeIter iter;
 794         FileData *fd = nullptr;
 795
 796         gtk_tree_view_get_cursor(GTK_TREE_VIEW(vd->view), &tpath, nullptr);
 797         if (tpath)
 798                 {
 799                 GtkTreeModel *store;
 800                 NodeData *nd;
 801
 802                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 803                 gtk_tree_model_get_iter(store, &iter, tpath);
 804                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 805
 806                 gtk_tree_path_free(tpath);
 807
 808                 fd = (nd) ? nd->fd : nullptr;
 809                 }
 810
 811         switch (event->keyval)
 812                 {
 813                 case GDK_KEY_Menu:
 814                         vd->click_fd = fd;
 815                         vd_color_set(vd, vd->click_fd, TRUE);
 816
 817                         vd->popup = vd_pop_menu(vd, vd->click_fd);
 818                         gtk_menu_popup_at_pointer(GTK_MENU(vd->popup), nullptr);
 819
 820                         return TRUE;
 821                         break;
 822                 case GDK_KEY_plus:
 823                 case GDK_KEY_Right:
 824                 case GDK_KEY_KP_Add:
 825                         if (fd)
 826                                 {
 827                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 828
 829                                 if (islink(fd->path))
 830                                         {
 831                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->link);
 832                                         }
 833                                 else
 834                                         {
 835                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 836                                         }
 837                                 }
 838                         break;
 839                 }
 840
 841         return FALSE;
 842 }
 843
 844 static gboolean vdtree_clicked_on_expander(GtkTreeView *treeview, GtkTreePath *tpath,
 845                                            GtkTreeViewColumn *column, gint x, gint, gint *left_of_expander)
 846 {
 847         gint depth;
 848         gint size;
 849         gint sep;
 850         gint exp_width;
 851
 852         if (column != gtk_tree_view_get_expander_column(treeview)) return FALSE;
 853
 854         gtk_widget_style_get(GTK_WIDGET(treeview), "expander-size", &size, "horizontal-separator", &sep, NULL);
 855         depth = gtk_tree_path_get_depth(tpath);
 856
 857         exp_width = sep + size + sep;
 858
 859         if (x <= depth * exp_width)
 860                 {
 861                 if (left_of_expander) *left_of_expander = !(x >= (depth - 1) * exp_width);
 862                 return TRUE;
 863                 }
 864
 865         return FALSE;
 866 }
 867
 868 gboolean vdtree_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
 869 {
 870         auto vd = static_cast<ViewDir *>(data);
 871         GtkTreePath *tpath;
 872         GtkTreeViewColumn *column;
 873         GtkTreeIter iter;
 874         NodeData *nd = nullptr;
 875         FileData *fd;
 876
 877         if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
 878                                           &tpath, &column, nullptr, nullptr))
 879                 {
 880                 GtkTreeModel *store;
 881                 gint left_of_expander;
 882
 883                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
 884                 gtk_tree_model_get_iter(store, &iter, tpath);
 885                 gtk_tree_model_get(store, &iter, DIR_COLUMN_POINTER, &nd, -1);
 886                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(widget), tpath, nullptr, FALSE);
 887
 888                 if (vdtree_clicked_on_expander(GTK_TREE_VIEW(widget), tpath, column, bevent->x, bevent->y, &left_of_expander))
 889                         {
 890                         vd->click_fd = nullptr;
 891
 892                         /* clicking this region should automatically reveal an expander, if necessary
 893                          * treeview bug: the expander will not expand until a button_motion_event highlights it.
 894                          */
 895                         if (bevent->button == MOUSE_BUTTON_LEFT &&
 896                             !left_of_expander &&
 897                             !gtk_tree_view_row_expanded(GTK_TREE_VIEW(vd->view), tpath))
 898                                 {
 899                                 vdtree_populate_path_by_iter(vd, &iter, FALSE, vd->dir_fd);
 900
 901                                 fd = (nd) ? nd->fd : nullptr;
 902                                 if (fd && islink(fd->path))
 903                                         {
 904                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->link);
 905                                         }
 906                                 else
 907                                         {
 908                                         vdtree_icon_set_by_iter(vd, &iter, vd->pf->open);
 909                                         }
 910                                 }
 911
 912                         gtk_tree_path_free(tpath);
 913                         return FALSE;
 914                         }
 915
 916                 gtk_tree_path_free(tpath);
 917                 }
 918
 919         vd->click_fd = (nd) ? nd->fd : nullptr;
 920         vd_color_set(vd, vd->click_fd, TRUE);
 921
 922         if (bevent->button == MOUSE_BUTTON_RIGHT)
 923                 {
 924                 vd->popup = vd_pop_menu(vd, vd->click_fd);
 925                 gtk_menu_popup_at_pointer(GTK_MENU(vd->popup), nullptr);
 926                 }
 927
 928         return (bevent->button != MOUSE_BUTTON_LEFT);
 929 }
 930
 931 static void vdtree_row_expanded(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 932 {
 933         auto vd = static_cast<ViewDir *>(data);
 934         GtkTreeModel *store;
 935         NodeData *nd = nullptr;
 936         FileData *fd;
 937
 938         gtk_tree_view_set_tooltip_column(treeview, DIR_COLUMN_LINK);
 939
 940         vdtree_populate_path_by_iter(vd, iter, FALSE, nullptr);
 941         store = gtk_tree_view_get_model(GTK_TREE_VIEW(treeview));
 942
 943         gtk_tree_model_get_iter(store, iter, tpath);
 944         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 945
 946         fd = (nd) ? nd->fd : nullptr;
 947         if (fd && islink(fd->path))
 948                 {
 949                 vdtree_icon_set_by_iter(vd, iter, vd->pf->link);
 950                 }
 951         else
 952                 {
 953                 vdtree_icon_set_by_iter(vd, iter, vd->pf->open);
 954                 }
 955 }
 956
 957 static void vdtree_row_collapsed(GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *tpath, gpointer data)
 958 {
 959         auto vd = static_cast<ViewDir *>(data);
 960         GtkTreeModel *store;
 961         NodeData *nd = nullptr;
 962         FileData *fd;
 963
 964         vdtree_populate_path_by_iter(vd, iter, FALSE, nullptr);
 965         store = gtk_tree_view_get_model(GTK_TREE_VIEW(treeview));
 966
 967         gtk_tree_model_get_iter(store, iter, tpath);
 968         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
 969
 970         fd = (nd) ? nd->fd : nullptr;
 971         if (fd && islink(fd->path))
 972                 {
 973                 vdtree_icon_set_by_iter(vd, iter, vd->pf->link);
 974                 }
 975         else
 976                 {
 977                 vdtree_icon_set_by_iter(vd, iter, vd->pf->close);
 978                 }
 979 }
 980
 981 static gint vdtree_sort_cb(GtkTreeModel *store, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 982 {
 983         NodeData *nda;
 984         NodeData *ndb;
 985         auto vd = static_cast<ViewDir *>(data);
 986
 987         gtk_tree_model_get(store, a, DIR_COLUMN_POINTER, &nda, -1);
 988         gtk_tree_model_get(store, b, DIR_COLUMN_POINTER, &ndb, -1);
 989
 990         if (!nda->fd && !ndb->fd) return 0;
 991         if (!nda->fd) return 1;
 992         if (!ndb->fd) return -1;
 993
 994         if (vd->layout->options.dir_view_list_sort.method == SORT_NUMBER)
 995                 {
 996                 if (vd->layout->options.dir_view_list_sort.case_sensitive == TRUE)
 997                         {
 998                         return strcmp(nda->fd->collate_key_name_natural, ndb->fd->collate_key_name_natural);
 999                         }
1000
1001                 return strcmp(nda->fd->collate_key_name_nocase_natural, ndb->fd->collate_key_name_nocase_natural);
1002                 }
1003
1004         if (vd->layout->options.dir_view_list_sort.method == SORT_TIME)
1005                 {
1006                 if (nda->fd->date < ndb->fd->date) return -1;
1007                 if (nda->fd->date > ndb->fd->date) return 1;
1008                 return 0;
1009                 }
1010
1011         if (vd->layout->options.dir_view_list_sort.case_sensitive == TRUE)
1012                 {
1013                 return strcmp(nda->fd->collate_key_name, ndb->fd->collate_key_name);
1014                 }
1015
1016         return strcmp(nda->fd->collate_key_name_nocase, ndb->fd->collate_key_name_nocase);
1017 }
1018
1019 /*
1020  *----------------------------------------------------------------------------
1021  * core
1022  *----------------------------------------------------------------------------
1023  */
1024
1025 static void vdtree_setup_root(ViewDir *vd)
1026 {
1027         const gchar *path = G_DIR_SEPARATOR_S;
1028         FileData *fd;
1029
1030
1031         fd = file_data_new_dir(path);
1032         vdtree_add_by_data(vd, fd, nullptr);
1033
1034         vdtree_expand_by_data(vd, fd, TRUE);
1035         vdtree_populate_path(vd, fd, FALSE, FALSE);
1036 }
1037
1038 static gboolean vdtree_destroy_node_cb(GtkTreeModel *store, GtkTreePath *, GtkTreeIter *iter, gpointer)
1039 {
1040         NodeData *nd;
1041
1042         gtk_tree_model_get(store, iter, DIR_COLUMN_POINTER, &nd, -1);
1043         vdtree_node_free(nd);
1044
1045         return FALSE;
1046 }
1047
1048 void vdtree_destroy_cb(GtkWidget *, gpointer data)
1049 {
1050         auto vd = static_cast<ViewDir *>(data);
1051         GtkTreeModel *store;
1052
1053         vdtree_dnd_drop_expand_cancel(vd);
1054         vd_dnd_drop_scroll_cancel(vd);
1055         widget_auto_scroll_stop(vd->view);
1056
1057         store = gtk_tree_view_get_model(GTK_TREE_VIEW(vd->view));
1058         gtk_tree_model_foreach(store, vdtree_destroy_node_cb, vd);
1059 }
1060
1061 ViewDir *vdtree_new(ViewDir *vd, FileData *)
1062 {
1063         GtkTreeStore *store;
1064         GtkTreeSelection *selection;
1065         GtkTreeViewColumn *column;
1066         GtkCellRenderer *renderer;
1067
1068         vd->info = g_new0(ViewDirInfoTree, 1);
1069
1070         vd->type = DIRVIEW_TREE;
1071
1072         vd->dnd_drop_leave_func = vdtree_dnd_drop_expand_cancel;
1073         vd->dnd_drop_update_func = vdtree_dnd_drop_expand;
1074
1075         store = gtk_tree_store_new(6, G_TYPE_POINTER, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_INT, G_TYPE_STRING, G_TYPE_STRING);
1076         vd->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
1077         g_object_unref(store);
1078
1079         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(vd->view), FALSE);
1080         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(vd->view), FALSE);
1081         gtk_tree_sortable_set_default_sort_func(GTK_TREE_SORTABLE(store), vdtree_sort_cb, vd, nullptr);
1082         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(store),
1083                                              GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, GTK_SORT_ASCENDING);
1084
1085         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(vd->view));
1086         gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
1087         gtk_tree_selection_set_select_function(selection, vdtree_select_cb, vd, nullptr);
1088
1089         column = gtk_tree_view_column_new();
1090         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1091
1092         renderer = gtk_cell_renderer_pixbuf_new();
1093         gtk_tree_view_column_pack_start(column, renderer, FALSE);
1094         gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", DIR_COLUMN_ICON);
1095         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, nullptr);
1096
1097         renderer = gtk_cell_renderer_text_new();
1098         gtk_tree_view_column_pack_start(column, renderer, TRUE);
1099         gtk_tree_view_column_add_attribute(column, renderer, "text", DIR_COLUMN_NAME);
1100         gtk_tree_view_column_set_cell_data_func(column, renderer, vd_color_cb, vd, nullptr);
1101
1102         gtk_tree_view_append_column(GTK_TREE_VIEW(vd->view), column);
1103
1104         gtk_tree_view_set_tooltip_column(GTK_TREE_VIEW(vd->view), DIR_COLUMN_LINK);
1105
1106         vdtree_setup_root(vd);
1107
1108         g_signal_connect(G_OBJECT(vd->view), "row_expanded",
1109                          G_CALLBACK(vdtree_row_expanded), vd);
1110         g_signal_connect(G_OBJECT(vd->view), "row_collapsed",
1111                          G_CALLBACK(vdtree_row_collapsed), vd);
1112
1113         return vd;
1114 }
1115 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */