1 /* GTK - The GIMP Toolkit
2 * gtkfilesystemmodel.c: GtkTreeModel wrapping a GtkFileSystem
3 * Copyright (C) 2003, Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
23 #include "gtkfilesystemmodel.h"
28 #include "gtkfilesystem.h"
30 #include "gtkmarshalers.h"
31 #include "gtktreedatalist.h"
32 #include "gtktreednd.h"
33 #include "gtktreemodel.h"
35 /*** Structure: how GtkFileSystemModel works
37 * This is a custom GtkTreeModel used to hold a collection of files for GtkFileChooser. There are two use cases:
39 * 1. The model populates itself from a folder, using the GIO file enumerator API. This happens if you use
40 * _gtk_file_system_model_new_for_directory(). This is the normal usage for showing the contents of a folder.
42 * 2. The caller populates the model by hand, with files not necessarily in the same folder. This happens
43 * if you use _gtk_file_system_model_new() and then _gtk_file_system_model_add_and_query_file(). This is
44 * the special kind of usage for "search" and "recent-files", where the file chooser gives the model the
45 * files to be displayed.
47 * Each file is kept in a FileModelNode structure. Each FileModelNode holds a GFile* and other data. All the
48 * node structures have the same size, determined at runtime, depending on the number of columns that were passed
49 * to _gtk_file_system_model_new() or _gtk_file_system_model_new_for_directory() (that is, the size of a node is
50 * not sizeof (FileModelNode), but rather model->node_size). The last field in the FileModelNode structure,
51 * node->values[], is an array of GValue, used to hold the data for those columns.
53 * The model stores an array of FileModelNode structures in model->files. This is a GArray where each element is
54 * model->node_size bytes in size (the model computes that node size when initializing itself). There are
55 * convenience macros, get_node() and node_index(), to access that array based on an array index or a pointer to
56 * a node inside the array.
58 * The model accesses files through two of its fields:
60 * model->files - GArray of FileModelNode structures.
62 * model->file_lookup - hash table that maps a GFile* to an index inside the model->files array.
64 * The model->file_lookup hash table is populated lazily. It is both accessed and populated with the
65 * node_get_for_file() function. The invariant is that the files in model->files[n] for n < g_hash_table_size
66 * (model->file_lookup) are already added to the hash table. The hash table will get cleared when we re-sort the
67 * files, as the array will be in a different order and the indexes need to be rebuilt.
69 * Each FileModelNode has a node->visible field, which indicates whether the node is visible in the GtkTreeView.
70 * A node may be invisible if, for example, it corresponds to a hidden file and the file chooser is not showing
73 * Since not all nodes in the model->files array may be visible, we need a way to map visible row indexes from
74 * the treeview to array indexes in our array of files. And thus we introduce a bit of terminology:
76 * index - An index in the model->files array. All variables/fields that represent indexes are either called
77 * "index" or "i_*", or simply "i" for things like loop counters.
79 * row - An index in the GtkTreeView, i.e. the index of a row within the outward-facing API of the
80 * GtkFileSystemModel. However, note that our rows are 1-based, not 0-based, for the reason explained in the
81 * following paragraph. Variables/fields that represent visible rows are called "row", or "r_*", or simply
84 * Each FileModelNode has a node->row field which is the number of visible rows in the treeview, *before and
85 * including* that node. This means that node->row is 1-based, instead of 0-based --- this makes some code
86 * simpler, believe it or not :) This also means that when the calling GtkTreeView gives us a GtkTreePath, we
87 * turn the 0-based treepath into a 1-based row for our purposes. If a node is not visible, it will have the
88 * same row number as its closest preceding visible node.
90 * We try to compute the node->row fields lazily. A node is said to be "valid" if its node->row is accurate.
91 * For this, the model keeps a model->n_nodes_valid field which is the count of valid nodes starting from the
92 * beginning of the model->files array. When a node changes its information, or when a node gets deleted, that
93 * node and the following ones get invalidated by simply setting model->n_nodes_valid to the array index of the
94 * node. If the model happens to need a node's row number and that node is in the model->files array after
95 * model->n_nodes_valid, then the nodes get re-validated up to the sought node. See node_validate_rows() for
98 * You never access a node->row directly. Instead, call node_get_tree_row(). That function will validate the nodes
99 * up to the sought one if the node is not valid yet, and it will return a proper 0-based row.
104 /* priority used for all async callbacks in the main loop
105 * This should be higher than redraw priorities so multiple callbacks
106 * firing can be handled without intermediate redraws */
107 #define IO_PRIORITY G_PRIORITY_DEFAULT
109 /* random number that everyone else seems to use, too */
110 #define FILES_PER_QUERY 100
112 typedef struct _FileModelNode FileModelNode;
113 typedef struct _GtkFileSystemModelClass GtkFileSystemModelClass;
115 struct _FileModelNode
117 GFile * file; /* file represented by this node or NULL for editable */
118 GFileInfo * info; /* info for this file or NULL if unknown */
120 guint row; /* if valid (see model->n_valid_indexes), visible nodes before and including
121 * this one - see the "Structure" comment above.
124 guint visible :1; /* if the file is currently visible */
125 guint frozen_add :1; /* true if the model was frozen and the entry has not been added yet */
127 GValue values[1]; /* actually n_columns values */
130 struct _GtkFileSystemModel
132 GObject parent_instance;
134 GFile * dir; /* directory that's displayed */
135 guint dir_thaw_source;/* GSource id for unfreezing the model */
136 char * attributes; /* attributes the file info must contain, or NULL for all attributes */
137 GFileMonitor * dir_monitor; /* directory that is monitored, or NULL if monitoring was not supported */
139 GCancellable * cancellable; /* cancellable in use for all operations - cancelled on dispose */
140 GArray * files; /* array of FileModelNode containing all our files */
141 gsize node_size; /* Size of a FileModelNode structure once its ->values field has n_columns */
142 guint n_nodes_valid; /* count of valid nodes (i.e. those whose node->row is accurate) */
143 GHashTable * file_lookup; /* mapping of GFile => array index in model->files
144 * This hash table doesn't always have the same number of entries as the files array;
145 * it can get cleared completely when we resort.
146 * The hash table gets re-populated in node_get_for_file() if this mismatch is
150 guint n_columns; /* number of columns */
151 GType * column_types; /* types of each column */
152 GtkFileSystemModelGetValue get_func; /* function to call to fill in values in columns */
153 gpointer get_data; /* data to pass to get_func */
155 GtkFileFilter * filter; /* filter to use for deciding which nodes are visible */
157 int sort_column_id; /* current sorting column */
158 GtkSortType sort_order; /* current sorting order */
159 GList * sort_list; /* list of sorting functions */
160 GtkTreeIterCompareFunc default_sort_func; /* default sort function */
161 gpointer default_sort_data; /* data to pass to default sort func */
162 GDestroyNotify default_sort_destroy; /* function to call to destroy default_sort_data */
164 guint frozen; /* number of times we're frozen */
166 gboolean filter_on_thaw :1;/* set when filtering needs to happen upon thawing */
167 gboolean sort_on_thaw :1;/* set when sorting needs to happen upon thawing */
169 guint show_hidden :1; /* whether to show hidden files */
170 guint show_folders :1;/* whether to show folders */
171 guint show_files :1; /* whether to show files */
174 #define GTK_FILE_SYSTEM_MODEL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_FILE_SYSTEM_MODEL, GtkFileSystemModelClass))
175 #define GTK_IS_FILE_SYSTEM_MODEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_FILE_SYSTEM_MODEL))
176 #define GTK_FILE_SYSTEM_MODEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_FILE_SYSTEM_MODEL, GtkFileSystemModelClass))
178 struct _GtkFileSystemModelClass
180 GObjectClass parent_class;
184 void (*finished_loading) (GtkFileSystemModel *model, GError *error);
187 static void add_file (GtkFileSystemModel *model,
190 static void remove_file (GtkFileSystemModel *model,
194 * @user_data: the model
195 * @user_data2: GUINT_TO_POINTER of array index of current entry
197 * All other fields are unused. Note that the array index does not corrspond
198 * 1:1 with the path index as entries might not be visible.
200 #define ITER_INDEX(iter) GPOINTER_TO_UINT((iter)->user_data2)
201 #define ITER_IS_VALID(model, iter) ((model) == (iter)->user_data)
202 #define ITER_INIT_FROM_INDEX(model, _iter, _index) G_STMT_START {\
203 g_assert (_index < (model)->files->len); \
204 (_iter)->user_data = (model); \
205 (_iter)->user_data2 = GUINT_TO_POINTER (_index); \
208 /*** FileModelNode ***/
210 /* Get a FileModelNode structure given an index in the model->files array of nodes */
211 #define get_node(_model, _index) ((FileModelNode *) ((_model)->files->data + (_index) * (_model)->node_size))
213 /* Get an index within the model->files array of nodes, given a FileModelNode* */
214 #define node_index(_model, _node) (((gchar *) (_node) - (_model)->files->data) / (_model)->node_size)
216 /* @up_to_index: smallest model->files array index that will be valid after this call
217 * @up_to_row: smallest node->row that will be valid after this call
219 * If you want to validate up to an index or up to a row, specify the index or
220 * the row you want and specify G_MAXUINT for the other argument. Pass
221 * G_MAXUINT for both arguments for "validate everything".
224 node_validate_rows (GtkFileSystemModel *model, guint up_to_index, guint up_to_row)
228 if (model->files->len == 0)
231 up_to_index = MIN (up_to_index, model->files->len - 1);
233 i = model->n_nodes_valid;
235 row = get_node (model, i - 1)->row;
239 while (i <= up_to_index && row <= up_to_row)
241 FileModelNode *node = get_node (model, i);
247 model->n_nodes_valid = i;
251 node_get_tree_row (GtkFileSystemModel *model, guint index)
253 if (model->n_nodes_valid <= index)
254 node_validate_rows (model, index, G_MAXUINT);
256 return get_node (model, index)->row - 1;
260 node_invalidate_index (GtkFileSystemModel *model, guint id)
262 model->n_nodes_valid = MIN (model->n_nodes_valid, id);
266 gtk_tree_path_new_from_node (GtkFileSystemModel *model, guint id)
268 guint i = node_get_tree_row (model, id);
270 g_assert (i < model->files->len);
272 return gtk_tree_path_new_from_indices (i, -1);
276 emit_row_inserted_for_node (GtkFileSystemModel *model, guint id)
281 path = gtk_tree_path_new_from_node (model, id);
282 ITER_INIT_FROM_INDEX (model, &iter, id);
283 gtk_tree_model_row_inserted (GTK_TREE_MODEL (model), path, &iter);
284 gtk_tree_path_free (path);
288 emit_row_changed_for_node (GtkFileSystemModel *model, guint id)
293 path = gtk_tree_path_new_from_node (model, id);
294 ITER_INIT_FROM_INDEX (model, &iter, id);
295 gtk_tree_model_row_changed (GTK_TREE_MODEL (model), path, &iter);
296 gtk_tree_path_free (path);
300 emit_row_deleted_for_row (GtkFileSystemModel *model, guint row)
304 path = gtk_tree_path_new_from_indices (row, -1);
305 gtk_tree_model_row_deleted (GTK_TREE_MODEL (model), path);
306 gtk_tree_path_free (path);
310 node_set_visible (GtkFileSystemModel *model, guint id, gboolean visible)
312 FileModelNode *node = get_node (model, id);
314 if (node->visible == visible ||
320 node->visible = TRUE;
321 node_invalidate_index (model, id);
322 emit_row_inserted_for_node (model, id);
328 row = node_get_tree_row (model, id);
329 g_assert (row < model->files->len);
331 node->visible = FALSE;
332 node_invalidate_index (model, id);
333 emit_row_deleted_for_row (model, row);
338 node_should_be_visible (GtkFileSystemModel *model, guint id)
340 FileModelNode *node = get_node (model, id);
341 GtkFileFilterInfo filter_info = { 0, };
342 GtkFileFilterFlags required;
343 gboolean is_folder, result;
344 char *mime_type = NULL;
345 char *filename = NULL;
348 if (node->info == NULL)
351 if (!model->show_hidden &&
352 (g_file_info_get_is_hidden (node->info) || g_file_info_get_is_backup (node->info)))
355 is_folder = _gtk_file_info_consider_as_directory (node->info);
358 if (model->show_folders != model->show_files &&
359 model->show_folders != is_folder)
365 if (model->filter == NULL)
369 required = gtk_file_filter_get_needed (model->filter);
371 filter_info.contains = GTK_FILE_FILTER_DISPLAY_NAME;
372 filter_info.display_name = g_file_info_get_display_name (node->info);
374 if (required & GTK_FILE_FILTER_MIME_TYPE)
376 const char *s = g_file_info_get_content_type (node->info);
379 mime_type = g_content_type_get_mime_type (s);
382 filter_info.mime_type = mime_type;
383 filter_info.contains |= GTK_FILE_FILTER_MIME_TYPE;
388 if (required & GTK_FILE_FILTER_FILENAME)
390 filename = g_file_get_path (node->file);
393 filter_info.filename = filename;
394 filter_info.contains |= GTK_FILE_FILTER_FILENAME;
398 if (required & GTK_FILE_FILTER_URI)
400 uri = g_file_get_uri (node->file);
403 filter_info.uri = uri;
404 filter_info.contains |= GTK_FILE_FILTER_URI;
408 result = gtk_file_filter_filter (model->filter, &filter_info);
417 /*** GtkTreeModel ***/
419 static GtkTreeModelFlags
420 gtk_file_system_model_get_flags (GtkTreeModel *tree_model)
422 /* GTK_TREE_MODEL_ITERS_PERSIST doesn't work with arrays :( */
423 return GTK_TREE_MODEL_LIST_ONLY;
427 gtk_file_system_model_get_n_columns (GtkTreeModel *tree_model)
429 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (tree_model);
431 return model->n_columns;
435 gtk_file_system_model_get_column_type (GtkTreeModel *tree_model,
438 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (tree_model);
440 g_return_val_if_fail (i >= 0 && (guint) i < model->n_columns, G_TYPE_NONE);
442 return model->column_types[i];
446 compare_indices (gconstpointer key, gconstpointer _node)
448 const FileModelNode *node = _node;
450 return GPOINTER_TO_UINT (key) - node->row;
454 gtk_file_system_model_iter_nth_child (GtkTreeModel *tree_model,
459 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (tree_model);
464 g_return_val_if_fail (n >= 0, FALSE);
469 row_to_find = n + 1; /* plus one as our node->row numbers are 1-based; see the "Structure" comment at the beginning */
471 if (model->n_nodes_valid > 0 &&
472 get_node (model, model->n_nodes_valid - 1)->row >= row_to_find)
474 /* Fast path - the nodes are valid up to the sought one.
476 * First, find a node with the sought row number...*/
478 node = bsearch (GUINT_TO_POINTER (row_to_find),
480 model->n_nodes_valid,
486 /* ... Second, back up until we find the first visible node with that row number */
488 id = node_index (model, node);
489 while (!get_node (model, id)->visible)
492 g_assert (get_node (model, id)->row == row_to_find);
496 /* Slow path - the nodes need to be validated up to the sought one */
498 node_validate_rows (model, G_MAXUINT, n); /* note that this is really "n", not row_to_find - see node_validate_rows() */
499 id = model->n_nodes_valid - 1;
500 if (model->n_nodes_valid == 0 || get_node (model, id)->row != row_to_find)
504 ITER_INIT_FROM_INDEX (model, iter, id);
509 gtk_file_system_model_get_iter (GtkTreeModel *tree_model,
513 g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE);
515 return gtk_file_system_model_iter_nth_child (tree_model,
518 gtk_tree_path_get_indices (path)[0]);
522 gtk_file_system_model_get_path (GtkTreeModel *tree_model,
525 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (tree_model);
527 g_return_val_if_fail (ITER_IS_VALID (model, iter), NULL);
529 return gtk_tree_path_new_from_node (model, ITER_INDEX (iter));
533 gtk_file_system_model_get_value (GtkTreeModel *tree_model,
538 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (tree_model);
539 const GValue *original;
541 g_return_if_fail ((guint) column < model->n_columns);
542 g_return_if_fail (ITER_IS_VALID (model, iter));
544 original = _gtk_file_system_model_get_value (model, iter, column);
547 g_value_init (value, G_VALUE_TYPE (original));
548 g_value_copy (original, value);
551 g_value_init (value, model->column_types[column]);
555 gtk_file_system_model_iter_next (GtkTreeModel *tree_model,
558 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (tree_model);
561 g_return_val_if_fail (ITER_IS_VALID (model, iter), FALSE);
563 for (i = ITER_INDEX (iter) + 1; i < model->files->len; i++)
565 FileModelNode *node = get_node (model, i);
569 ITER_INIT_FROM_INDEX (model, iter, i);
578 gtk_file_system_model_iter_children (GtkTreeModel *tree_model,
586 gtk_file_system_model_iter_has_child (GtkTreeModel *tree_model,
593 gtk_file_system_model_iter_n_children (GtkTreeModel *tree_model,
596 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (tree_model);
601 return node_get_tree_row (model, model->files->len - 1) + 1;
605 gtk_file_system_model_iter_parent (GtkTreeModel *tree_model,
613 gtk_file_system_model_ref_node (GtkTreeModel *tree_model,
620 gtk_file_system_model_unref_node (GtkTreeModel *tree_model,
627 gtk_file_system_model_iface_init (GtkTreeModelIface *iface)
629 iface->get_flags = gtk_file_system_model_get_flags;
630 iface->get_n_columns = gtk_file_system_model_get_n_columns;
631 iface->get_column_type = gtk_file_system_model_get_column_type;
632 iface->get_iter = gtk_file_system_model_get_iter;
633 iface->get_path = gtk_file_system_model_get_path;
634 iface->get_value = gtk_file_system_model_get_value;
635 iface->iter_next = gtk_file_system_model_iter_next;
636 iface->iter_children = gtk_file_system_model_iter_children;
637 iface->iter_has_child = gtk_file_system_model_iter_has_child;
638 iface->iter_n_children = gtk_file_system_model_iter_n_children;
639 iface->iter_nth_child = gtk_file_system_model_iter_nth_child;
640 iface->iter_parent = gtk_file_system_model_iter_parent;
641 iface->ref_node = gtk_file_system_model_ref_node;
642 iface->unref_node = gtk_file_system_model_unref_node;
645 /*** GtkTreeSortable ***/
647 typedef struct _SortData SortData;
649 GtkFileSystemModel * model;
650 GtkTreeIterCompareFunc func;
652 int order; /* -1 to invert sort order or 1 to keep it */
655 /* returns FALSE if no sort necessary */
657 sort_data_init (SortData *data, GtkFileSystemModel *model)
659 GtkTreeDataSortHeader *header;
661 if (model->files->len <= 2)
664 switch (model->sort_column_id)
666 case GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID:
667 if (!model->default_sort_func)
669 data->func = model->default_sort_func;
670 data->data = model->default_sort_data;
672 case GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID:
675 header = _gtk_tree_data_list_get_header (model->sort_list, model->sort_column_id);
678 data->func = header->func;
679 data->data = header->data;
683 data->order = model->sort_order == GTK_SORT_DESCENDING ? -1 : 1;
689 compare_array_element (gconstpointer a, gconstpointer b, gpointer user_data)
691 SortData *data = user_data;
692 GtkTreeIter itera, iterb;
694 ITER_INIT_FROM_INDEX (data->model, &itera, node_index (data->model, a));
695 ITER_INIT_FROM_INDEX (data->model, &iterb, node_index (data->model, b));
696 return data->func (GTK_TREE_MODEL (data->model), &itera, &iterb, data->data) * data->order;
700 gtk_file_system_model_sort (GtkFileSystemModel *model)
706 model->sort_on_thaw = TRUE;
710 if (sort_data_init (&data, model))
714 guint r, n_visible_rows;
716 node_validate_rows (model, G_MAXUINT, G_MAXUINT);
717 n_visible_rows = node_get_tree_row (model, model->files->len - 1) + 1;
718 model->n_nodes_valid = 0;
719 g_hash_table_remove_all (model->file_lookup);
720 g_qsort_with_data (get_node (model, 1), /* start at index 1; don't sort the editable row */
721 model->files->len - 1,
723 compare_array_element,
725 g_assert (model->n_nodes_valid == 0);
726 g_assert (g_hash_table_size (model->file_lookup) == 0);
729 int *new_order = g_new (int, n_visible_rows);
732 for (i = 0; i < model->files->len; i++)
734 FileModelNode *node = get_node (model, i);
741 new_order[r] = node->row - 1;
745 g_assert (r == n_visible_rows);
746 path = gtk_tree_path_new ();
747 gtk_tree_model_rows_reordered (GTK_TREE_MODEL (model),
751 gtk_tree_path_free (path);
756 model->sort_on_thaw = FALSE;
760 gtk_file_system_model_sort_node (GtkFileSystemModel *model, guint node)
763 gtk_file_system_model_sort (model);
767 gtk_file_system_model_get_sort_column_id (GtkTreeSortable *sortable,
768 gint *sort_column_id,
771 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (sortable);
774 *sort_column_id = model->sort_column_id;
776 *order = model->sort_order;
778 if (model->sort_column_id == GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID ||
779 model->sort_column_id == GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID)
786 gtk_file_system_model_set_sort_column_id (GtkTreeSortable *sortable,
790 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (sortable);
792 if ((model->sort_column_id == sort_column_id) &&
793 (model->sort_order == order))
796 if (sort_column_id != GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID)
798 if (sort_column_id != GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID)
800 GtkTreeDataSortHeader *header = NULL;
802 header = _gtk_tree_data_list_get_header (model->sort_list,
805 /* We want to make sure that we have a function */
806 g_return_if_fail (header != NULL);
807 g_return_if_fail (header->func != NULL);
811 g_return_if_fail (model->default_sort_func != NULL);
816 model->sort_column_id = sort_column_id;
817 model->sort_order = order;
819 gtk_tree_sortable_sort_column_changed (sortable);
821 gtk_file_system_model_sort (model);
825 gtk_file_system_model_set_sort_func (GtkTreeSortable *sortable,
827 GtkTreeIterCompareFunc func,
829 GDestroyNotify destroy)
831 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (sortable);
833 model->sort_list = _gtk_tree_data_list_set_header (model->sort_list,
835 func, data, destroy);
837 if (model->sort_column_id == sort_column_id)
838 gtk_file_system_model_sort (model);
842 gtk_file_system_model_set_default_sort_func (GtkTreeSortable *sortable,
843 GtkTreeIterCompareFunc func,
845 GDestroyNotify destroy)
847 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (sortable);
849 if (model->default_sort_destroy)
851 GDestroyNotify d = model->default_sort_destroy;
853 model->default_sort_destroy = NULL;
854 d (model->default_sort_data);
857 model->default_sort_func = func;
858 model->default_sort_data = data;
859 model->default_sort_destroy = destroy;
861 if (model->sort_column_id == GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID)
862 gtk_file_system_model_sort (model);
866 gtk_file_system_model_has_default_sort_func (GtkTreeSortable *sortable)
868 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (sortable);
870 return (model->default_sort_func != NULL);
874 gtk_file_system_model_sortable_init (GtkTreeSortableIface *iface)
876 iface->get_sort_column_id = gtk_file_system_model_get_sort_column_id;
877 iface->set_sort_column_id = gtk_file_system_model_set_sort_column_id;
878 iface->set_sort_func = gtk_file_system_model_set_sort_func;
879 iface->set_default_sort_func = gtk_file_system_model_set_default_sort_func;
880 iface->has_default_sort_func = gtk_file_system_model_has_default_sort_func;
883 /*** GtkTreeDragSource ***/
886 drag_source_row_draggable (GtkTreeDragSource *drag_source,
889 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (drag_source);
892 if (!gtk_file_system_model_get_iter (GTK_TREE_MODEL (model), &iter, path))
895 return ITER_INDEX (&iter) != 0;
899 drag_source_drag_data_get (GtkTreeDragSource *drag_source,
901 GtkSelectionData *selection_data)
903 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (drag_source);
908 if (!gtk_file_system_model_get_iter (GTK_TREE_MODEL (model), &iter, path))
911 node = get_node (model, ITER_INDEX (&iter));
912 if (node->file == NULL)
915 uris[0] = g_file_get_uri (node->file);
917 gtk_selection_data_set_uris (selection_data, uris);
924 drag_source_iface_init (GtkTreeDragSourceIface *iface)
926 iface->row_draggable = drag_source_row_draggable;
927 iface->drag_data_get = drag_source_drag_data_get;
928 iface->drag_data_delete = NULL;
931 /*** GtkFileSystemModel ***/
939 static guint file_system_model_signals[LAST_SIGNAL] = { 0 };
943 G_DEFINE_TYPE_WITH_CODE (GtkFileSystemModel, _gtk_file_system_model, G_TYPE_OBJECT,
944 G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL,
945 gtk_file_system_model_iface_init)
946 G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_SORTABLE,
947 gtk_file_system_model_sortable_init)
948 G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_SOURCE,
949 drag_source_iface_init))
952 gtk_file_system_model_dispose (GObject *object)
954 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (object);
956 if (model->dir_thaw_source)
958 g_source_remove (model->dir_thaw_source);
959 model->dir_thaw_source = 0;
962 g_cancellable_cancel (model->cancellable);
963 if (model->dir_monitor)
964 g_file_monitor_cancel (model->dir_monitor);
966 G_OBJECT_CLASS (_gtk_file_system_model_parent_class)->dispose (object);
971 gtk_file_system_model_finalize (GObject *object)
973 GtkFileSystemModel *model = GTK_FILE_SYSTEM_MODEL (object);
976 for (i = 0; i < model->files->len; i++)
980 FileModelNode *node = get_node (model, i);
982 g_object_unref (node->file);
984 g_object_unref (node->info);
986 for (v = 0; v < model->n_columns; v++)
987 if (G_VALUE_TYPE (&node->values[v]) != G_TYPE_INVALID)
988 g_value_unset (&node->values[v]);
990 g_array_free (model->files, TRUE);
992 g_object_unref (model->cancellable);
993 g_free (model->attributes);
995 g_object_unref (model->dir);
996 if (model->dir_monitor)
997 g_object_unref (model->dir_monitor);
998 g_hash_table_destroy (model->file_lookup);
1000 g_object_unref (model->filter);
1002 g_slice_free1 (sizeof (GType) * model->n_columns, model->column_types);
1004 _gtk_tree_data_list_header_free (model->sort_list);
1005 if (model->default_sort_destroy)
1006 model->default_sort_destroy (model->default_sort_data);
1008 G_OBJECT_CLASS (_gtk_file_system_model_parent_class)->finalize (object);
1012 _gtk_file_system_model_class_init (GtkFileSystemModelClass *class)
1014 GObjectClass *gobject_class = G_OBJECT_CLASS (class);
1016 gobject_class->finalize = gtk_file_system_model_finalize;
1017 gobject_class->dispose = gtk_file_system_model_dispose;
1019 file_system_model_signals[FINISHED_LOADING] =
1020 g_signal_new (I_("finished-loading"),
1021 G_OBJECT_CLASS_TYPE (gobject_class),
1023 G_STRUCT_OFFSET (GtkFileSystemModelClass, finished_loading),
1025 _gtk_marshal_VOID__POINTER,
1026 G_TYPE_NONE, 1, G_TYPE_POINTER);
1030 _gtk_file_system_model_init (GtkFileSystemModel *model)
1032 model->show_files = TRUE;
1033 model->show_folders = TRUE;
1034 model->show_hidden = FALSE;
1036 model->sort_column_id = GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID;
1038 model->file_lookup = g_hash_table_new (g_file_hash, (GEqualFunc) g_file_equal);
1039 model->cancellable = g_cancellable_new ();
1045 gtk_file_system_model_closed_enumerator (GObject *object, GAsyncResult *res, gpointer data)
1047 g_file_enumerator_close_finish (G_FILE_ENUMERATOR (object), res, NULL);
1051 thaw_func (gpointer data)
1053 GtkFileSystemModel *model = data;
1055 _gtk_file_system_model_thaw_updates (model);
1056 model->dir_thaw_source = 0;
1062 gtk_file_system_model_got_files (GObject *object, GAsyncResult *res, gpointer data)
1064 GFileEnumerator *enumerator = G_FILE_ENUMERATOR (object);
1065 GtkFileSystemModel *model = data;
1066 GList *walk, *files;
1067 GError *error = NULL;
1069 gdk_threads_enter ();
1071 files = g_file_enumerator_next_files_finish (enumerator, res, &error);
1075 if (model->dir_thaw_source == 0)
1077 _gtk_file_system_model_freeze_updates (model);
1078 model->dir_thaw_source = gdk_threads_add_timeout_full (IO_PRIORITY + 1,
1085 for (walk = files; walk; walk = walk->next)
1092 name = g_file_info_get_name (info);
1095 /* Shouldn't happen, but the APIs allow it */
1096 g_object_unref (info);
1099 file = g_file_get_child (model->dir, name);
1100 add_file (model, file, info);
1101 g_object_unref (file);
1102 g_object_unref (info);
1104 g_list_free (files);
1106 g_file_enumerator_next_files_async (enumerator,
1107 g_file_is_native (model->dir) ? 50 * FILES_PER_QUERY : FILES_PER_QUERY,
1110 gtk_file_system_model_got_files,
1115 if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
1117 g_file_enumerator_close_async (enumerator,
1120 gtk_file_system_model_closed_enumerator,
1122 if (model->dir_thaw_source != 0)
1124 g_source_remove (model->dir_thaw_source);
1125 model->dir_thaw_source = 0;
1126 _gtk_file_system_model_thaw_updates (model);
1129 g_signal_emit (model, file_system_model_signals[FINISHED_LOADING], 0, error);
1133 g_error_free (error);
1136 gdk_threads_leave ();
1140 gtk_file_system_model_query_done (GObject * object,
1144 GtkFileSystemModel *model = data; /* only a valid pointer if not cancelled */
1145 GFile *file = G_FILE (object);
1148 info = g_file_query_info_finish (file, res, NULL);
1152 _gtk_file_system_model_update_file (model, file, info, TRUE);
1156 gtk_file_system_model_monitor_change (GFileMonitor * monitor,
1159 GFileMonitorEvent type,
1160 GtkFileSystemModel *model)
1164 case G_FILE_MONITOR_EVENT_CREATED:
1165 case G_FILE_MONITOR_EVENT_CHANGED:
1166 case G_FILE_MONITOR_EVENT_ATTRIBUTE_CHANGED:
1167 /* We can treat all of these the same way */
1168 g_file_query_info_async (file,
1170 G_FILE_QUERY_INFO_NONE,
1173 gtk_file_system_model_query_done,
1176 case G_FILE_MONITOR_EVENT_DELETED:
1177 remove_file (model, file);
1179 case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
1180 /* FIXME: use freeze/thaw with this somehow? */
1181 case G_FILE_MONITOR_EVENT_PRE_UNMOUNT:
1182 case G_FILE_MONITOR_EVENT_UNMOUNTED:
1190 gtk_file_system_model_got_enumerator (GObject *dir, GAsyncResult *res, gpointer data)
1192 GtkFileSystemModel *model = data;
1193 GFileEnumerator *enumerator;
1194 GError *error = NULL;
1196 gdk_threads_enter ();
1198 enumerator = g_file_enumerate_children_finish (G_FILE (dir), res, &error);
1199 if (enumerator == NULL)
1201 if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
1203 g_signal_emit (model, file_system_model_signals[FINISHED_LOADING], 0, error);
1204 g_error_free (error);
1209 g_file_enumerator_next_files_async (enumerator,
1210 g_file_is_native (model->dir) ? 50 * FILES_PER_QUERY : FILES_PER_QUERY,
1213 gtk_file_system_model_got_files,
1215 g_object_unref (enumerator);
1216 model->dir_monitor = g_file_monitor_directory (model->dir,
1217 G_FILE_MONITOR_NONE,
1219 NULL); /* we don't mind if directory monitoring isn't supported, so the GError is NULL here */
1220 if (model->dir_monitor)
1221 g_signal_connect (model->dir_monitor,
1223 G_CALLBACK (gtk_file_system_model_monitor_change),
1227 gdk_threads_leave ();
1231 gtk_file_system_model_set_n_columns (GtkFileSystemModel *model,
1237 g_assert (model->files == NULL);
1238 g_assert (n_columns > 0);
1240 model->n_columns = n_columns;
1241 model->column_types = g_slice_alloc (sizeof (GType) * n_columns);
1243 model->node_size = sizeof (FileModelNode) + sizeof (GValue) * (n_columns - 1); /* minus 1 because FileModelNode.values[] has a default size of 1 */
1245 for (i = 0; i < (guint) n_columns; i++)
1247 GType type = va_arg (args, GType);
1248 if (! _gtk_tree_data_list_check_type (type))
1250 g_error ("%s: type %s cannot be a column type for GtkFileSystemModel\n", G_STRLOC, g_type_name (type));
1251 return; /* not reached */
1254 model->column_types[i] = type;
1257 model->sort_list = _gtk_tree_data_list_header_new (n_columns, model->column_types);
1259 model->files = g_array_sized_new (FALSE, FALSE, model->node_size, FILES_PER_QUERY);
1260 /* add editable node at start */
1261 g_array_set_size (model->files, 1);
1262 memset (get_node (model, 0), 0, model->node_size);
1266 gtk_file_system_model_set_directory (GtkFileSystemModel *model,
1268 const gchar * attributes)
1270 g_assert (G_IS_FILE (dir));
1272 model->dir = g_object_ref (dir);
1273 model->attributes = g_strdup (attributes);
1275 g_file_enumerate_children_async (model->dir,
1277 G_FILE_QUERY_INFO_NONE,
1280 gtk_file_system_model_got_enumerator,
1285 static GtkFileSystemModel *
1286 _gtk_file_system_model_new_valist (GtkFileSystemModelGetValue get_func,
1291 GtkFileSystemModel *model;
1293 model = g_object_new (GTK_TYPE_FILE_SYSTEM_MODEL, NULL);
1294 model->get_func = get_func;
1295 model->get_data = get_data;
1297 gtk_file_system_model_set_n_columns (model, n_columns, args);
1303 * _gtk_file_system_model_new:
1304 * @get_func: function to call for getting a value
1305 * @get_data: user data argument passed to @get_func
1306 * @n_columns: number of columns
1307 * @...: @n_columns #GType types for the columns
1309 * Creates a new #GtkFileSystemModel object. You need to add files
1310 * to the list using _gtk_file_system_model_add_and_query_file()
1311 * or _gtk_file_system_model_update_file().
1313 * Return value: the newly created #GtkFileSystemModel
1315 GtkFileSystemModel *
1316 _gtk_file_system_model_new (GtkFileSystemModelGetValue get_func,
1321 GtkFileSystemModel *model;
1324 g_return_val_if_fail (get_func != NULL, NULL);
1325 g_return_val_if_fail (n_columns > 0, NULL);
1327 va_start (args, n_columns);
1328 model = _gtk_file_system_model_new_valist (get_func, get_data, n_columns, args);
1335 * _gtk_file_system_model_new_for_directory:
1336 * @directory: the directory to show.
1337 * @attributes: (allow-none): attributes to immediately load or %NULL for all
1338 * @get_func: function that the model should call to query data about a file
1339 * @get_data: user data to pass to the @get_func
1340 * @n_columns: number of columns
1341 * @...: @n_columns #GType types for the columns
1343 * Creates a new #GtkFileSystemModel object. The #GtkFileSystemModel
1344 * object wraps the given @directory as a #GtkTreeModel.
1345 * The model will query the given directory with the given @attributes
1346 * and add all files inside the directory automatically. If supported,
1347 * it will also monitor the drectory and update the model's
1348 * contents to reflect changes, if the @directory supports monitoring.
1350 * Return value: the newly created #GtkFileSystemModel
1352 GtkFileSystemModel *
1353 _gtk_file_system_model_new_for_directory (GFile * dir,
1354 const gchar * attributes,
1355 GtkFileSystemModelGetValue get_func,
1360 GtkFileSystemModel *model;
1363 g_return_val_if_fail (G_IS_FILE (dir), NULL);
1364 g_return_val_if_fail (get_func != NULL, NULL);
1365 g_return_val_if_fail (n_columns > 0, NULL);
1367 va_start (args, n_columns);
1368 model = _gtk_file_system_model_new_valist (get_func, get_data, n_columns, args);
1371 gtk_file_system_model_set_directory (model, dir, attributes);
1377 gtk_file_system_model_refilter_all (GtkFileSystemModel *model)
1383 model->filter_on_thaw = TRUE;
1387 _gtk_file_system_model_freeze_updates (model);
1389 /* start at index 1, don't change the editable */
1390 for (i = 1; i < model->files->len; i++)
1392 node_set_visible (model, i, node_should_be_visible (model, i));
1395 model->filter_on_thaw = FALSE;
1396 _gtk_file_system_model_thaw_updates (model);
1400 * _gtk_file_system_model_set_show_hidden:
1401 * @model: a #GtkFileSystemModel
1402 * @show_hidden: whether hidden files should be displayed
1404 * Sets whether hidden files should be included in the #GtkTreeModel
1408 _gtk_file_system_model_set_show_hidden (GtkFileSystemModel *model,
1409 gboolean show_hidden)
1411 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1413 show_hidden = show_hidden != FALSE;
1415 if (show_hidden != model->show_hidden)
1417 model->show_hidden = show_hidden;
1418 gtk_file_system_model_refilter_all (model);
1423 * _gtk_file_system_model_set_show_folders:
1424 * @model: a #GtkFileSystemModel
1425 * @show_folders: whether folders should be displayed
1427 * Sets whether folders should be included in the #GtkTreeModel for
1431 _gtk_file_system_model_set_show_folders (GtkFileSystemModel *model,
1432 gboolean show_folders)
1434 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1436 show_folders = show_folders != FALSE;
1438 if (show_folders != model->show_folders)
1440 model->show_folders = show_folders;
1441 gtk_file_system_model_refilter_all (model);
1446 * _gtk_file_system_model_set_show_files:
1447 * @model: a #GtkFileSystemModel
1448 * @show_files: whether files (as opposed to folders) should
1451 * Sets whether files (as opposed to folders) should be included
1452 * in the #GtkTreeModel for display.
1455 _gtk_file_system_model_set_show_files (GtkFileSystemModel *model,
1456 gboolean show_files)
1458 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1460 show_files = show_files != FALSE;
1462 if (show_files != model->show_files)
1464 model->show_files = show_files;
1465 gtk_file_system_model_refilter_all (model);
1470 * _gtk_file_system_model_get_cancellable:
1473 * Gets the cancellable used by the @model. This is the cancellable used
1474 * internally by the @model that will be cancelled when @model is
1475 * disposed. So you can use it for operations that should be cancelled
1476 * when the model goes away.
1478 * Returns: The cancellable used by @model
1481 _gtk_file_system_model_get_cancellable (GtkFileSystemModel *model)
1483 g_return_val_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model), NULL);
1485 return model->cancellable;
1489 * _gtk_file_system_model_iter_is_visible:
1491 * @iter: a valid iterator
1493 * Checks if the iterator is visible. A visible iterator references
1494 * a row that is currently exposed using the #GtkTreeModel API. If
1495 * the iterator is invisible, it references a file that is not shown
1496 * for some reason, such as being filtered by the current filter or
1497 * being a hidden file.
1499 * Returns: %TRUE if the iterator is visible
1502 _gtk_file_system_model_iter_is_visible (GtkFileSystemModel *model,
1505 FileModelNode *node;
1507 g_return_val_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model), FALSE);
1508 g_return_val_if_fail (iter != NULL, FALSE);
1510 node = get_node (model, ITER_INDEX (iter));
1511 return node->visible;
1515 * _gtk_file_system_model_get_info:
1516 * @model: a #GtkFileSystemModel
1517 * @iter: a #GtkTreeIter pointing to a row of @model
1519 * Gets the #GFileInfo structure for a particular row
1522 * Return value: a #GFileInfo structure. This structure
1523 * is owned by @model and must not be modified or freed.
1524 * If you want to keep the information for later use,
1525 * you must take a reference, since the structure may be
1526 * freed on later changes to the file system. If you have
1527 * called _gtk_file_system_model_add_editable() and the @iter
1528 * corresponds to the row that this function returned, the
1529 * return value will be NULL.
1532 _gtk_file_system_model_get_info (GtkFileSystemModel *model,
1535 FileModelNode *node;
1537 g_return_val_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model), NULL);
1538 g_return_val_if_fail (iter != NULL, NULL);
1540 node = get_node (model, ITER_INDEX (iter));
1541 g_assert (node->info == NULL || G_IS_FILE_INFO (node->info));
1546 * _gtk_file_system_model_get_file:
1547 * @model: a #GtkFileSystemModel
1548 * @iter: a #GtkTreeIter pointing to a row of @model
1550 * Gets the file for a particular row in @model.
1552 * Return value: the file. This object is owned by @model and
1553 * or freed. If you want to save the path for later use,
1554 * you must take a ref, since the object may be freed
1555 * on later changes to the file system.
1558 _gtk_file_system_model_get_file (GtkFileSystemModel *model,
1561 FileModelNode *node;
1563 g_return_val_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model), NULL);
1565 node = get_node (model, ITER_INDEX (iter));
1570 * _gtk_file_system_model_get_value:
1571 * @model: a #GtkFileSystemModel
1572 * @iter: a #GtkTreeIter pointing to a row of @model
1573 * @column: the column to get the value for
1575 * Gets the value associated with the given row @iter and @column.
1576 * If no value is available yet and the default value should be used,
1577 * %NULL is returned.
1578 * This is a performance optimization for the calls
1579 * gtk_tree_model_get() or gtk_tree_model_get_value(), which copy
1580 * the value and spend a considerable amount of time in iterator
1581 * lookups. Both of which are slow.
1583 * Returns: a pointer to the actual value as stored in @model or %NULL
1584 * if no value available yet.
1587 _gtk_file_system_model_get_value (GtkFileSystemModel *model,
1591 FileModelNode *node;
1593 g_return_val_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model), NULL);
1594 g_return_val_if_fail (column >= 0 && (guint) column < model->n_columns, NULL);
1596 node = get_node (model, ITER_INDEX (iter));
1598 if (!G_VALUE_TYPE (&node->values[column]))
1600 g_value_init (&node->values[column], model->column_types[column]);
1601 if (!model->get_func (model,
1605 &node->values[column],
1608 g_value_unset (&node->values[column]);
1613 return &node->values[column];
1617 node_get_for_file (GtkFileSystemModel *model,
1622 i = GPOINTER_TO_UINT (g_hash_table_lookup (model->file_lookup, file));
1626 /* Node 0 is the editable row and has no associated file or entry in the table, so we start counting from 1.
1628 * The invariant here is that the files in model->files[n] for n < g_hash_table_size (model->file_lookup)
1629 * are already added to the hash table. The table can get cleared when we re-sort; this loop merely rebuilds
1630 * our (file -> index) mapping on demand.
1632 * If we exit the loop, the next pending batch of mappings will be resolved when this function gets called again
1633 * with another file that is not yet in the mapping.
1635 for (i = g_hash_table_size (model->file_lookup) + 1; i < model->files->len; i++)
1637 FileModelNode *node = get_node (model, i);
1639 g_hash_table_insert (model->file_lookup, node->file, GUINT_TO_POINTER (i));
1640 if (g_file_equal (node->file, file))
1648 * _gtk_file_system_model_get_iter_for_file:
1650 * @iter: the iterator to be initialized
1651 * @file: the file to look up
1653 * Initializes @iter to point to the row used for @file, if @file is part
1654 * of the model. Note that upon successful return, @iter may point to an
1655 * invisible row in the @model. Use
1656 * _gtk_file_system_model_iter_is_visible() to make sure it is visible to
1659 * Returns: %TRUE if file is part of the model and @iter was initialized
1662 _gtk_file_system_model_get_iter_for_file (GtkFileSystemModel *model,
1668 g_return_val_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model), FALSE);
1669 g_return_val_if_fail (iter != NULL, FALSE);
1670 g_return_val_if_fail (G_IS_FILE (file), FALSE);
1672 i = node_get_for_file (model, file);
1677 ITER_INIT_FROM_INDEX (model, iter, i);
1684 * @file: the file to add
1685 * @info: the information to associate with the file
1687 * Adds the given @file with its associated @info to the @model.
1688 * If the model is frozen, the file will only show up after it is thawn.
1691 add_file (GtkFileSystemModel *model,
1695 FileModelNode *node;
1697 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1698 g_return_if_fail (G_IS_FILE (file));
1699 g_return_if_fail (G_IS_FILE_INFO (info));
1701 node = g_slice_alloc0 (model->node_size);
1702 node->file = g_object_ref (file);
1704 node->info = g_object_ref (info);
1705 node->frozen_add = model->frozen ? TRUE : FALSE;
1707 g_array_append_vals (model->files, node, 1);
1708 g_slice_free1 (model->node_size, node);
1711 node_set_visible (model, model->files->len -1,
1712 node_should_be_visible (model, model->files->len - 1));
1713 gtk_file_system_model_sort_node (model, model->files->len -1);
1719 * @file: file to remove from the model. The file must have been
1720 * added to the model previously
1722 * Removes the given file from the model. If the file is not part of
1723 * @model, this function does nothing.
1726 remove_file (GtkFileSystemModel *model,
1729 FileModelNode *node;
1732 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1733 g_return_if_fail (G_IS_FILE (file));
1735 id = node_get_for_file (model, file);
1739 node = get_node (model, id);
1740 node_set_visible (model, id, FALSE);
1742 g_hash_table_remove (model->file_lookup, file);
1743 g_object_unref (node->file);
1746 g_object_unref (node->info);
1748 g_array_remove_index (model->files, id);
1749 g_hash_table_remove_all (model->file_lookup);
1750 /* We don't need to resort, as removing a row doesn't change the sorting order */
1754 * _gtk_file_system_model_update_file:
1757 * @info: the new file info
1758 * @requires_resort: FIXME: get rid of this argument
1760 * Tells the file system model that the file changed and that the
1761 * new @info should be used for it now. If the file is not part of
1762 * @model, it will get added automatically.
1765 _gtk_file_system_model_update_file (GtkFileSystemModel *model,
1768 gboolean requires_resort)
1770 FileModelNode *node;
1772 GFileInfo *old_info;
1774 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1775 g_return_if_fail (G_IS_FILE (file));
1776 g_return_if_fail (G_IS_FILE_INFO (info));
1778 id = node_get_for_file (model, file);
1781 add_file (model, file, info);
1782 id = node_get_for_file (model, file);
1785 node = get_node (model, id);
1787 old_info = node->info;
1788 node->info = g_object_ref (info);
1790 g_object_unref (old_info);
1792 for (i = 0; i < model->n_columns; i++)
1794 if (G_VALUE_TYPE (&node->values[i]))
1795 g_value_unset (&node->values[i]);
1799 emit_row_changed_for_node (model, id);
1801 if (requires_resort)
1802 gtk_file_system_model_sort_node (model, id);
1806 * _gtk_file_system_model_set_filter:
1807 * @mode: a #GtkFileSystemModel
1808 * @filter: (allow-none): %NULL or filter to use
1810 * Sets a filter to be used for deciding if a row should be visible or not.
1811 * Directories are always visible.
1814 _gtk_file_system_model_set_filter (GtkFileSystemModel *model,
1815 GtkFileFilter * filter)
1817 GtkFileFilter *old_filter;
1819 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1820 g_return_if_fail (filter == NULL || GTK_IS_FILE_FILTER (filter));
1823 g_object_ref (filter);
1825 old_filter = model->filter;
1826 model->filter = filter;
1829 g_object_unref (old_filter);
1831 gtk_file_system_model_refilter_all (model);
1835 * _gtk_file_system_model_add_editable:
1836 * @model: a #GtkFileSystemModel
1837 * @iter: Location to return the iter corresponding to the editable row
1839 * Adds an "empty" row at the beginning of the model. This does not refer to
1840 * any file, but is a temporary placeholder for a file name that the user will
1841 * type when a corresponding cell is made editable. When your code is done
1842 * using this temporary row, call _gtk_file_system_model_remove_editable().
1845 _gtk_file_system_model_add_editable (GtkFileSystemModel *model, GtkTreeIter *iter)
1847 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1848 g_return_if_fail (!get_node (model, 0)->visible);
1850 node_set_visible (model, 0, TRUE);
1851 ITER_INIT_FROM_INDEX (model, iter, 0);
1855 * _gtk_file_system_model_remove_editable:
1856 * @model: a #GtkFileSystemModel
1858 * Removes the "empty" row at the beginning of the model that was
1859 * created with _gtk_file_system_model_add_editable(). You should call
1860 * this function when your code is finished editing this temporary row.
1863 _gtk_file_system_model_remove_editable (GtkFileSystemModel *model)
1865 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1866 g_return_if_fail (get_node (model, 0)->visible);
1868 node_set_visible (model, 0, FALSE);
1872 * _gtk_file_system_model_freeze_updates:
1873 * @model: a #GtkFileSystemModel
1875 * Freezes most updates on the model, so that performing multiple
1876 * operations on the files in the model do not cause any events.
1877 * Use _gtk_file_system_model_thaw_updates() to resume proper
1878 * operations. It is fine to call this function multiple times as
1879 * long as freeze and thaw calls are balanced.
1882 _gtk_file_system_model_freeze_updates (GtkFileSystemModel *model)
1884 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1890 * _gtk_file_system_model_thaw_updates:
1891 * @model: a #GtkFileSystemModel
1893 * Undoes the effect of a previous call to
1894 * _gtk_file_system_model_freeze_updates()
1897 _gtk_file_system_model_thaw_updates (GtkFileSystemModel *model)
1899 gboolean stuff_added;
1901 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1902 g_return_if_fail (model->frozen > 0);
1905 if (model->frozen > 0)
1908 stuff_added = get_node (model, model->files->len - 1)->frozen_add;
1910 if (model->filter_on_thaw)
1911 gtk_file_system_model_refilter_all (model);
1912 if (model->sort_on_thaw)
1913 gtk_file_system_model_sort (model);
1918 for (i = 0; i < model->files->len; i++)
1920 FileModelNode *node = get_node (model, i);
1922 if (!node->frozen_add)
1924 node->frozen_add = FALSE;
1925 node_set_visible (model, i, node_should_be_visible (model, i));
1931 * _gtk_file_system_model_clear_cache:
1932 * @model: a #GtkFileSystemModel
1933 * @column: the column to clear or -1 for all columns
1935 * Clears the cached values in the model for the given @column. Use
1936 * this function whenever your get_value function would return different
1937 * values for a column.
1938 * The file chooser uses this for example when the icon theme changes to
1939 * invalidate the cached pixbufs.
1942 _gtk_file_system_model_clear_cache (GtkFileSystemModel *model,
1949 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1950 g_return_if_fail (column >= -1 && (guint) column < model->n_columns);
1960 end = model->n_columns;
1963 for (i = 0; i < model->files->len; i++)
1965 FileModelNode *node = get_node (model, i);
1967 for (column = start; column < end; column++)
1969 if (!G_VALUE_TYPE (&node->values[column]))
1972 g_value_unset (&node->values[column]);
1976 if (changed && node->visible)
1977 emit_row_changed_for_node (model, i);
1980 /* FIXME: resort? */
1984 * _gtk_file_system_model_add_and_query_file:
1985 * @model: a #GtkFileSystemModel
1986 * @file: the file to add
1987 * @attributes: attributes to query before adding the file
1989 * This is a conenience function that calls g_file_query_info_async() on
1990 * the given file, and when successful, adds it to the model.
1991 * Upon failure, the @file is discarded.
1994 _gtk_file_system_model_add_and_query_file (GtkFileSystemModel *model,
1996 const char * attributes)
1998 g_return_if_fail (GTK_IS_FILE_SYSTEM_MODEL (model));
1999 g_return_if_fail (G_IS_FILE (file));
2000 g_return_if_fail (attributes != NULL);
2002 g_file_query_info_async (file,
2004 G_FILE_QUERY_INFO_NONE,
2007 gtk_file_system_model_query_done,