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r1577: Bugfix: Using another window in between entering target mode and selecting
[rox-filer.git] / ROX-Filer / src / filer.c
blobfc22b0d668858cf465fb5c2cc8e81f94800f643a
1 /*
2 * $Id$
3 *
4 * ROX-Filer, filer for the ROX desktop project
5 * Copyright (C) 2002, the ROX-Filer team.
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
19 * Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 /* filer.c - code for handling filer windows */
23
24 #include "config.h"
25
26 #include <stdlib.h>
27 #include <stdio.h>
28 #include <string.h>
29 #include <errno.h>
30 #include <ctype.h>
31 #include <math.h>
32 #include <netdb.h>
33 #include <sys/param.h>
34
35 #include <gtk/gtk.h>
36 #include <gdk/gdkx.h>
37 #include <gdk/gdkkeysyms.h>
38
39 #include "global.h"
40
41 #include "collection.h"
42 #include "display.h"
43 #include "main.h"
44 #include "fscache.h"
45 #include "support.h"
46 #include "gui_support.h"
47 #include "filer.h"
48 #include "choices.h"
49 #include "pixmaps.h"
50 #include "menu.h"
51 #include "dnd.h"
52 #include "dir.h"
53 #include "diritem.h"
54 #include "run.h"
55 #include "type.h"
56 #include "options.h"
57 #include "minibuffer.h"
58 #include "icon.h"
59 #include "toolbar.h"
60 #include "bind.h"
61 #include "appinfo.h"
62 #include "mount.h"
63 #include "xml.h"
64 #include "view_iface.h"
65 #include "view_collection.h"
66
67 static XMLwrapper *groups = NULL;
68
69 /* This is rather badly named. It's actually the filer window which received
70 * the last key press or Menu click event.
71 */
72 FilerWindow *window_with_focus = NULL;
73
74 GList *all_filer_windows = NULL;
75
76 static FilerWindow *window_with_primary = NULL;
77
78 /* Static prototypes */
79 static void attach(FilerWindow *filer_window);
80 static void detach(FilerWindow *filer_window);
81 static void filer_window_destroyed(GtkWidget *widget,
82 FilerWindow *filer_window);
83 static void update_display(Directory *dir,
84 DirAction action,
85 GPtrArray *items,
86 FilerWindow *filer_window);
87 static void set_scanning_display(FilerWindow *filer_window, gboolean scanning);
88 static gboolean may_rescan(FilerWindow *filer_window, gboolean warning);
89 static gboolean minibuffer_show_cb(FilerWindow *filer_window);
90 static FilerWindow *find_filer_window(const char *sym_path, FilerWindow *diff);
91 static void filer_add_widgets(FilerWindow *filer_window);
92 static void filer_add_signals(FilerWindow *filer_window);
93 static void filer_size_for(FilerWindow *filer_window,
94 int w, int h, int n, gboolean allow_shrink);
95
96 static void set_selection_state(FilerWindow *filer_window, gboolean normal);
97 static void filer_next_thumb(GObject *window, const gchar *path);
98 static void start_thumb_scanning(FilerWindow *filer_window);
99 static void filer_options_changed(void);
100 static void set_style_by_number_of_items(FilerWindow *filer_window);
101
102 static GdkCursor *busy_cursor = NULL;
103 static GdkCursor *crosshair = NULL;
104
105 /* Indicates whether the filer's display is different to the machine it
106 * is actually running on.
107 */
108 static gboolean not_local = FALSE;
109
110 static Option o_filer_change_size, o_filer_change_size_num;
111 static Option o_filer_size_limit, o_short_flag_names;
112 Option o_filer_auto_resize, o_unique_filer_windows;
113
114 void filer_init(void)
115 {
116 const gchar *ohost;
117 const gchar *dpy;
118 gchar *dpyhost, *tmp;
119
120 option_add_int(&o_filer_size_limit, "filer_size_limit", 75);
121 option_add_int(&o_filer_auto_resize, "filer_auto_resize",
122 RESIZE_ALWAYS);
123 option_add_int(&o_unique_filer_windows, "filer_unique_windows", 0);
124
125 option_add_int(&o_short_flag_names, "filer_short_flag_names", FALSE);
126
127 option_add_int(&o_filer_change_size, "filer_change_size", TRUE);
128 option_add_int(&o_filer_change_size_num, "filer_change_size_num", 30);
129
130 option_add_notify(filer_options_changed);
131
132 busy_cursor = gdk_cursor_new(GDK_WATCH);
133 crosshair = gdk_cursor_new(GDK_CROSSHAIR);
134
135 /* Is the display on the local machine, or are we being
136 * run remotely? See filer_set_title().
137 */
138 ohost = our_host_name();
139 dpy = gdk_get_display();
140 dpyhost = g_strdup(dpy);
141 tmp = strchr(dpyhost, ':');
142 if (tmp)
143 *tmp = '\0';
144
145 if (dpyhost[0] && strcmp(ohost, dpyhost) != 0)
146 {
147 /* Try the cannonical name for dpyhost (see our_host_name()
148 * in support.c).
149 */
150 struct hostent *ent;
151
152 ent = gethostbyname(dpyhost);
153 if (!ent || strcmp(ohost, ent->h_name) != 0)
154 not_local = TRUE;
155 }
156
157 g_free(dpyhost);
158 }
159
160 static gboolean if_deleted(gpointer item, gpointer removed)
161 {
162 int i = ((GPtrArray *) removed)->len;
163 DirItem **r = (DirItem **) ((GPtrArray *) removed)->pdata;
164 char *leafname = ((DirItem *) item)->leafname;
165
166 while (i--)
167 {
168 if (strcmp(leafname, r[i]->leafname) == 0)
169 return TRUE;
170 }
171
172 return FALSE;
173 }
174
175 /* Resize the filer window to w x h pixels, plus border (not clamped) */
176 static void filer_window_set_size(FilerWindow *filer_window,
177 int w, int h,
178 gboolean allow_shrink)
179 {
180 GtkWidget *window;
181
182 g_return_if_fail(filer_window != NULL);
183
184 if (filer_window->scrollbar)
185 w += filer_window->scrollbar->allocation.width;
186
187 if (o_toolbar.int_value != TOOLBAR_NONE)
188 h += filer_window->toolbar->allocation.height;
189 if (filer_window->message)
190 h += filer_window->message->allocation.height;
191
192 window = filer_window->window;
193
194 if (GTK_WIDGET_VISIBLE(window))
195 {
196 gint x, y;
197 GtkRequisition *req = &window->requisition;
198 GdkWindow *gdk_window = window->window;
199
200 w = MAX(req->width, w);
201 h = MAX(req->height, h);
202 gdk_window_get_position(gdk_window, &x, &y);
203
204 if (!allow_shrink)
205 {
206 gint old_w, old_h;
207
208 gdk_drawable_get_size(gdk_window, &old_w, &old_h);
209 w = MAX(w, old_w);
210 h = MAX(h, old_h);
211
212 if (w == old_w && h == old_h)
213 return;
214 }
215
216 if (x + w > screen_width || y + h > screen_height)
217 {
218 if (x + w > screen_width)
219 x = screen_width - w - 4;
220 if (y + h > screen_height)
221 y = screen_height - h - 4;
222 gdk_window_move_resize(gdk_window, x, y, w, h);
223 }
224 else
225 gdk_window_resize(gdk_window, w, h);
226 }
227 else
228 gtk_window_set_default_size(GTK_WINDOW(window), w, h);
229 }
230
231 /* Resize the window to fit the items currently in the Directory.
232 * This should be used once the Directory has been fully scanned, otherwise
233 * the window will appear too small. When opening a directory for the first
234 * time, the names will be known but not the types and images. We can
235 * still make a good estimate of the size.
236 */
237 void filer_window_autosize(FilerWindow *filer_window, gboolean allow_shrink)
238 {
239 Collection *collection = filer_window->collection;
240 int n;
241
242 n = collection->number_of_items;
243 n = MAX(n, 2);
244
245 filer_size_for(filer_window,
246 collection->item_width,
247 collection->item_height,
248 n, allow_shrink);
249 }
250
251 /* Choose a good size for this window, assuming n items of size (w, h) */
252 static void filer_size_for(FilerWindow *filer_window,
253 int w, int h, int n, gboolean allow_shrink)
254 {
255 int x;
256 int rows, cols;
257 int max_x, max_rows;
258 const float r = 2.5;
259 int t = 0;
260 int size_limit;
261 int space = 0;
262
263 size_limit = o_filer_size_limit.int_value;
264
265 /* Get the extra height required for the toolbar and minibuffer,
266 * if visible.
267 */
268 if (o_toolbar.int_value != TOOLBAR_NONE)
269 t = filer_window->toolbar->allocation.height;
270 if (filer_window->message)
271 t += filer_window->message->allocation.height;
272 if (GTK_WIDGET_VISIBLE(filer_window->minibuffer_area))
273 {
274 GtkRequisition req;
275
276 gtk_widget_size_request(filer_window->minibuffer_area, &req);
277 space = req.height + 2;
278 t += space;
279 }
280
281 max_x = (size_limit * screen_width) / 100;
282 max_rows = (size_limit * screen_height) / (h * 100);
283
284 /* Aim for a size where
285 * x = r(y + t + h), (1)
286 * unless that's too wide.
287 *
288 * t = toolbar (and minibuffer) height
289 * r = desired (width / height) ratio
290 *
291 * Want to display all items:
292 * (x/w)(y/h) = n
293 * => xy = nwh
294 * => x(x/r - t - h) = nwh (from 1)
295 * => xx - x.rt - hr(1 - nw) = 0
296 * => 2x = rt +/- sqrt(rt.rt + 4hr(nw - 1))
297 * Now,
298 * 4hr(nw - 1) > 0
299 * so
300 * sqrt(rt.rt + ...) > rt
301 *
302 * So, the +/- must be +:
303 *
304 * => x = (rt + sqrt(rt.rt + 4hr(nw - 1))) / 2
305 *
306 * ( + w - 1 to round up)
307 */
308 x = (r * t + sqrt(r*r*t*t + 4*h*r * (n*w - 1))) / 2 + w - 1;
309
310 /* Limit x */
311 if (x > max_x)
312 x = max_x;
313
314 cols = x / w;
315 cols = MAX(cols, 1);
316
317 /* Choose rows to display all items given our chosen x.
318 * Don't make the window *too* big!
319 */
320 rows = (n + cols - 1) / cols;
321 if (rows > max_rows)
322 rows = max_rows;
323
324 /* Leave some room for extra icons, but only in Small Icons mode
325 * otherwise it takes up too much space.
326 * Also, don't add space if the minibuffer is open.
327 */
328 if (space == 0)
329 space = filer_window->display_style == SMALL_ICONS ? h : 2;
330
331 filer_window_set_size(filer_window,
332 w * MAX(cols, 1),
333 h * MAX(rows, 1) + space,
334 allow_shrink);
335 }
336
337 /* Called on a timeout while scanning or when scanning ends
338 * (whichever happens first).
339 */
340 static gint open_filer_window(FilerWindow *filer_window)
341 {
342 view_style_changed(filer_window->view, 0);
343
344 if (filer_window->open_timeout)
345 {
346 gtk_timeout_remove(filer_window->open_timeout);
347 filer_window->open_timeout = 0;
348 }
349
350 if (!GTK_WIDGET_VISIBLE(filer_window->window))
351 {
352 set_style_by_number_of_items(filer_window);
353 filer_window_autosize(filer_window, TRUE);
354 gtk_widget_show(filer_window->window);
355 }
356
357 return FALSE;
358 }
359
360 static void update_display(Directory *dir,
361 DirAction action,
362 GPtrArray *items,
363 FilerWindow *filer_window)
364 {
365 Collection *collection = filer_window->collection;
366 ViewIface *view = (ViewIface *) filer_window->view;
367
368 switch (action)
369 {
370 case DIR_ADD:
371 view_add_items(view, items);
372 /* Open and resize if currently hidden */
373 open_filer_window(filer_window);
374 break;
375 case DIR_REMOVE:
376 view_delete_if(view, if_deleted, items);
377 break;
378 case DIR_START_SCAN:
379 set_scanning_display(filer_window, TRUE);
380 toolbar_update_info(filer_window);
381 break;
382 case DIR_END_SCAN:
383 if (filer_window->window->window)
384 gdk_window_set_cursor(
385 filer_window->window->window,
386 NULL);
387 set_scanning_display(filer_window, FALSE);
388 toolbar_update_info(filer_window);
389 open_filer_window(filer_window);
390
391 if (filer_window->had_cursor &&
392 collection->cursor_item == -1)
393 {
394 collection_set_cursor_item(collection, 0);
395 filer_window->had_cursor = FALSE;
396 }
397 if (filer_window->auto_select)
398 display_set_autoselect(filer_window,
399 filer_window->auto_select);
400 g_free(filer_window->auto_select);
401 filer_window->auto_select = NULL;
402
403 filer_create_thumbs(filer_window);
404
405 if (filer_window->thumb_queue)
406 start_thumb_scanning(filer_window);
407 break;
408 case DIR_UPDATE:
409 view_update_items(view, items);
410 break;
411 }
412 }
413
414 static void attach(FilerWindow *filer_window)
415 {
416 gdk_window_set_cursor(filer_window->window->window, busy_cursor);
417 view_clear(filer_window->view);
418 filer_window->scanning = TRUE;
419 dir_attach(filer_window->directory, (DirCallback) update_display,
420 filer_window);
421 filer_set_title(filer_window);
422 }
423
424 static void detach(FilerWindow *filer_window)
425 {
426 g_return_if_fail(filer_window->directory != NULL);
427
428 dir_detach(filer_window->directory,
429 (DirCallback) update_display, filer_window);
430 g_object_unref(filer_window->directory);
431 filer_window->directory = NULL;
432 }
433
434 static void filer_window_destroyed(GtkWidget *widget,
435 FilerWindow *filer_window)
436 {
437 all_filer_windows = g_list_remove(all_filer_windows, filer_window);
438
439 g_object_set_data(G_OBJECT(widget), "filer_window", NULL);
440
441 if (window_with_primary == filer_window)
442 window_with_primary = NULL;
443
444 if (window_with_focus == filer_window)
445 {
446 menu_popdown();
447 window_with_focus = NULL;
448 }
449
450 if (filer_window->directory)
451 detach(filer_window);
452
453 if (filer_window->open_timeout)
454 {
455 gtk_timeout_remove(filer_window->open_timeout);
456 filer_window->open_timeout = 0;
457 }
458
459 if (filer_window->thumb_queue)
460 {
461 g_list_foreach(filer_window->thumb_queue, (GFunc) g_free, NULL);
462 g_list_free(filer_window->thumb_queue);
463 }
464
465 tooltip_show(NULL);
466
467 g_free(filer_window->auto_select);
468 g_free(filer_window->real_path);
469 g_free(filer_window->sym_path);
470 g_free(filer_window);
471
472 one_less_window();
473 }
474
475 /* Returns TRUE iff the directory still exists. */
476 static gboolean may_rescan(FilerWindow *filer_window, gboolean warning)
477 {
478 Directory *dir;
479
480 g_return_val_if_fail(filer_window != NULL, FALSE);
481
482 /* We do a fresh lookup (rather than update) because the inode may
483 * have changed.
484 */
485 dir = g_fscache_lookup(dir_cache, filer_window->real_path);
486 if (!dir)
487 {
488 if (warning)
489 info_message(_("Directory missing/deleted"));
490 gtk_widget_destroy(filer_window->window);
491 return FALSE;
492 }
493 if (dir == filer_window->directory)
494 g_object_unref(dir);
495 else
496 {
497 detach(filer_window);
498 filer_window->directory = dir;
499 attach(filer_window);
500 }
501
502 return TRUE;
503 }
504
505 /* No items are now selected. This might be because another app claimed
506 * the selection or because the user unselected all the items.
507 */
508 void filer_lost_selection(FilerWindow *filer_window, gint time)
509 {
510 if (window_with_primary == filer_window)
511 {
512 window_with_primary = NULL;
513 gtk_selection_owner_set(NULL, GDK_SELECTION_PRIMARY, time);
514 }
515 }
516
517 /* Another app has claimed the primary selection */
518 void filer_lost_primary(FilerWindow *filer_window)
519 {
520 if (window_with_primary && window_with_primary == filer_window)
521 {
522 window_with_primary = NULL;
523 set_selection_state(filer_window, FALSE);
524 }
525 }
526
527 /* Someone wants us to send them the selection */
528 static void selection_get(GtkWidget *widget,
529 GtkSelectionData *selection_data,
530 guint info,
531 guint time,
532 gpointer data)
533 {
534 GString *reply, *header;
535 FilerWindow *filer_window;
536 ViewIter iter;
537 DirItem *item;
538
539 filer_window = g_object_get_data(G_OBJECT(widget), "filer_window");
540
541 reply = g_string_new(NULL);
542 header = g_string_new(NULL);
543
544 switch (info)
545 {
546 case TARGET_STRING:
547 g_string_sprintf(header, " %s",
548 make_path(filer_window->sym_path, "")->str);
549 break;
550 case TARGET_URI_LIST:
551 g_string_sprintf(header, " file://%s%s",
552 our_host_name_for_dnd(),
553 make_path(filer_window->sym_path, "")->str);
554 break;
555 }
556
557 view_get_iter(filer_window->view, &iter, VIEW_ITER_SELECTED);
558
559 while ((item = iter.next(&iter)))
560 {
561 g_string_append(reply, header->str);
562 g_string_append(reply, item->leafname);
563 }
564
565 if (reply->len > 0)
566 gtk_selection_data_set(selection_data, xa_string,
567 8, reply->str + 1, reply->len - 1);
568 else
569 {
570 g_warning("Attempt to paste empty selection!");
571 gtk_selection_data_set(selection_data, xa_string, 8, "", 0);
572 }
573
574 g_string_free(reply, TRUE);
575 g_string_free(header, TRUE);
576 }
577
578 void filer_selection_changed(FilerWindow *filer_window, gint time)
579 {
580 /* Selection has been changed -- try to grab the primary selection
581 * if we don't have it.
582 */
583 if (window_with_primary == filer_window)
584 return; /* Already got it */
585
586 if (!filer_window->collection->number_selected)
587 return; /* Nothing selected */
588
589 if (filer_window->temp_item_selected == FALSE &&
590 gtk_selection_owner_set(GTK_WIDGET(filer_window->collection),
591 GDK_SELECTION_PRIMARY,
592 time))
593 {
594 window_with_primary = filer_window;
595 set_selection_state(filer_window, TRUE);
596 }
597 else
598 set_selection_state(filer_window, FALSE);
599 }
600
601 /* Open the item (or add it to the shell command minibuffer) */
602 void filer_openitem(FilerWindow *filer_window, int item_number, OpenFlags flags)
603 {
604 gboolean shift = (flags & OPEN_SHIFT) != 0;
605 gboolean close_mini = flags & OPEN_FROM_MINI;
606 gboolean close_window = (flags & OPEN_CLOSE_WINDOW) != 0;
607 DirItem *item = (DirItem *)
608 filer_window->collection->items[item_number].data;
609 guchar *full_path;
610 gboolean wink = TRUE;
611 Directory *old_dir;
612
613 if (filer_window->mini_type == MINI_SHELL)
614 {
615 minibuffer_add(filer_window, item->leafname);
616 return;
617 }
618
619 if (!item->image)
620 dir_update_item(filer_window->directory, item->leafname);
621
622 if (item->base_type == TYPE_DIRECTORY)
623 {
624 /* Never close a filer window when opening a directory
625 * (click on a dir or click on an app with shift).
626 */
627 if (shift || !(item->flags & ITEM_FLAG_APPDIR))
628 close_window = FALSE;
629 }
630
631 full_path = make_path(filer_window->sym_path, item->leafname)->str;
632 if (shift && (item->flags & ITEM_FLAG_SYMLINK))
633 wink = FALSE;
634
635 old_dir = filer_window->directory;
636 if (run_diritem(full_path, item,
637 flags & OPEN_SAME_WINDOW ? filer_window : NULL,
638 filer_window,
639 shift))
640 {
641 if (old_dir != filer_window->directory)
642 return;
643
644 if (close_window)
645 gtk_widget_destroy(filer_window->window);
646 else
647 {
648 if (wink)
649 collection_wink_item(filer_window->collection,
650 item_number);
651 if (close_mini)
652 minibuffer_hide(filer_window);
653 }
654 }
655 }
656
657 static gint pointer_in(GtkWidget *widget,
658 GdkEventCrossing *event,
659 FilerWindow *filer_window)
660 {
661 may_rescan(filer_window, TRUE);
662 return FALSE;
663 }
664
665 static gint pointer_out(GtkWidget *widget,
666 GdkEventCrossing *event,
667 FilerWindow *filer_window)
668 {
669 tooltip_show(NULL);
670 return FALSE;
671 }
672
673 /* Move the cursor to the next selected item in direction 'dir'
674 * (+1 or -1).
675 */
676 static void next_selected(FilerWindow *filer_window, int dir)
677 {
678 Collection *collection = filer_window->collection;
679 int to_check = collection->number_of_items;
680 int item = collection->cursor_item;
681
682 g_return_if_fail(dir == 1 || dir == -1);
683
684 if (to_check > 0 && item == -1)
685 {
686 /* Cursor not currently on */
687 if (dir == 1)
688 item = 0;
689 else
690 item = collection->number_of_items - 1;
691
692 if (collection->items[item].selected)
693 goto found;
694 }
695
696 while (--to_check > 0)
697 {
698 item += dir;
699
700 if (item >= collection->number_of_items)
701 item = 0;
702 else if (item < 0)
703 item = collection->number_of_items - 1;
704
705 if (collection->items[item].selected)
706 goto found;
707 }
708
709 gdk_beep();
710 return;
711 found:
712 collection_set_cursor_item(collection, item);
713 }
714
715 static void return_pressed(FilerWindow *filer_window, GdkEventKey *event)
716 {
717 Collection *collection = filer_window->collection;
718 int item = collection->cursor_item;
719 TargetFunc cb = filer_window->target_cb;
720 gpointer data = filer_window->target_data;
721 OpenFlags flags = OPEN_SAME_WINDOW;
722
723 filer_target_mode(filer_window, NULL, NULL, NULL);
724 if (item < 0 || item >= collection->number_of_items)
725 return;
726
727 if (cb)
728 {
729 cb(filer_window, item, data);
730 return;
731 }
732
733 if (event->state & GDK_SHIFT_MASK)
734 flags |= OPEN_SHIFT;
735
736 filer_openitem(filer_window, item, flags);
737 }
738
739 /* Makes sure that 'groups' is up-to-date, reloading from file if it has
740 * changed. If no groups were loaded and there is no file then initialised
741 * groups to an empty document.
742 * Return the node for the 'name' group.
743 */
744 static xmlNode *group_find(char *name)
745 {
746 xmlNode *node;
747 gchar *path;
748
749 /* Update the groups, if possible */
750 path = choices_find_path_load("Groups.xml", PROJECT);
751 if (path)
752 {
753 XMLwrapper *wrapper;
754 wrapper = xml_cache_load(path);
755 if (wrapper)
756 {
757 if (groups)
758 g_object_unref(groups);
759 groups = wrapper;
760 }
761
762 g_free(path);
763 }
764
765 if (!groups)
766 {
767 groups = xml_new(NULL);
768 groups->doc = xmlNewDoc("1.0");
769
770 xmlDocSetRootElement(groups->doc,
771 xmlNewDocNode(groups->doc, NULL, "groups", NULL));
772 return NULL;
773 }
774
775 node = xmlDocGetRootElement(groups->doc);
776
777 for (node = node->xmlChildrenNode; node; node = node->next)
778 {
779 guchar *gid;
780
781 gid = xmlGetProp(node, "name");
782
783 if (!gid)
784 continue;
785
786 if (strcmp(name, gid) != 0)
787 continue;
788
789 g_free(gid);
790
791 return node;
792 }
793
794 return NULL;
795 }
796
797 static void group_save(FilerWindow *filer_window, char *name)
798 {
799 xmlNode *group;
800 guchar *save_path;
801 DirItem *item;
802 ViewIter iter;
803
804 group = group_find(name);
805 if (group)
806 {
807 xmlUnlinkNode(group);
808 xmlFreeNode(group);
809 }
810 group = xmlNewChild(xmlDocGetRootElement(groups->doc),
811 NULL, "group", NULL);
812 xmlSetProp(group, "name", name);
813
814 xmlNewChild(group, NULL, "directory", filer_window->sym_path);
815
816 view_get_iter(filer_window->view, &iter, VIEW_ITER_SELECTED);
817
818 while ((item = iter.next(&iter)))
819 xmlNewChild(group, NULL, "item", item->leafname);
820
821 save_path = choices_find_path_save("Groups.xml", PROJECT, TRUE);
822 if (save_path)
823 {
824 save_xml_file(groups->doc, save_path);
825 g_free(save_path);
826 }
827 }
828
829 static void group_restore(FilerWindow *filer_window, char *name)
830 {
831 GHashTable *in_group;
832 Collection *collection = filer_window->collection;
833 int j, n;
834 char *path;
835 xmlNode *group, *node;
836
837 group = group_find(name);
838
839 if (!group)
840 {
841 report_error(_("Group %s is not set. Select some files "
842 "and press Ctrl+%s to set the group. Press %s "
843 "on its own to reselect the files later."),
844 name, name, name);
845 return;
846 }
847
848 node = get_subnode(group, NULL, "directory");
849 g_return_if_fail(node != NULL);
850 path = xmlNodeListGetString(groups->doc, node->xmlChildrenNode, 1);
851 g_return_if_fail(path != NULL);
852
853 if (strcmp(path, filer_window->sym_path) != 0)
854 filer_change_to(filer_window, path, NULL);
855 g_free(path);
856
857 /* If an item at the start is selected then we could lose the
858 * primary selection after checking that item and then need to
859 * gain it again at the end. Therefore, if anything is selected
860 * then select the last item until the end of the search.
861 */
862 n = collection->number_of_items;
863 if (collection->number_selected)
864 collection_select_item(collection, n - 1);
865
866 in_group = g_hash_table_new(g_str_hash, g_str_equal);
867 for (node = group->xmlChildrenNode; node; node = node->next)
868 {
869 gchar *leaf;
870 if (node->type != XML_ELEMENT_NODE)
871 continue;
872 if (strcmp(node->name, "item") != 0)
873 continue;
874
875 leaf = xmlNodeListGetString(groups->doc,
876 node->xmlChildrenNode, 1);
877 if (!leaf)
878 g_warning("Missing leafname!\n");
879 else
880 g_hash_table_insert(in_group, leaf, filer_window);
881 }
882
883 for (j = 0; j < n; j++)
884 {
885 DirItem *item = (DirItem *) collection->items[j].data;
886
887 if (g_hash_table_lookup(in_group, item->leafname))
888 collection_select_item(collection, j);
889 else
890 collection_unselect_item(collection, j);
891 }
892
893 g_hash_table_foreach(in_group, (GHFunc) g_free, NULL);
894 g_hash_table_destroy(in_group);
895 }
896
897 /* Handle keys that can't be bound with the menu */
898 static gint key_press_event(GtkWidget *widget,
899 GdkEventKey *event,
900 FilerWindow *filer_window)
901 {
902 GtkWidget *focus = GTK_WINDOW(widget)->focus_widget;
903 guint key = event->keyval;
904 char group[2] = "1";
905
906 window_with_focus = filer_window;
907
908 /* Delay setting up the keys until now to speed loading... */
909 if (!filer_keys)
910 ensure_filer_menu(); /* Gets the keys working... */
911
912 if (!g_slist_find(filer_keys->acceleratables, widget))
913 gtk_window_add_accel_group(GTK_WINDOW(filer_window->window),
914 filer_keys);
915
916 if (focus && focus != widget &&
917 gtk_widget_get_toplevel(focus) == widget)
918 if (gtk_widget_event(focus, (GdkEvent *) event))
919 return TRUE; /* Handled */
920
921 switch (key)
922 {
923 case GDK_Escape:
924 filer_target_mode(filer_window, NULL, NULL, NULL);
925 return FALSE;
926 case GDK_Return:
927 return_pressed(filer_window, event);
928 break;
929 case GDK_ISO_Left_Tab:
930 next_selected(filer_window, -1);
931 break;
932 case GDK_Tab:
933 next_selected(filer_window, 1);
934 break;
935 case GDK_BackSpace:
936 change_to_parent(filer_window);
937 break;
938 case GDK_backslash:
939 tooltip_show(NULL);
940 show_filer_menu(filer_window, (GdkEvent *) event,
941 filer_window->collection->cursor_item);
942 break;
943 default:
944 if (key >= GDK_0 && key <= GDK_9)
945 group[0] = key - GDK_0 + '0';
946 else if (key >= GDK_KP_0 && key <= GDK_KP_9)
947 group[0] = key - GDK_KP_0 + '0';
948 else
949 return FALSE;
950
951
952 if (event->state & GDK_CONTROL_MASK)
953 group_save(filer_window, group);
954 else
955 group_restore(filer_window, group);
956 }
957
958 return TRUE;
959 }
960
961 void filer_open_parent(FilerWindow *filer_window)
962 {
963 char *dir;
964 const char *current = filer_window->sym_path;
965
966 if (current[0] == '/' && current[1] == '\0')
967 return; /* Already in the root */
968
969 dir = g_dirname(current);
970 filer_opendir(dir, filer_window);
971 g_free(dir);
972 }
973
974 void change_to_parent(FilerWindow *filer_window)
975 {
976 char *dir;
977 const char *current = filer_window->sym_path;
978
979 if (current[0] == '/' && current[1] == '\0')
980 return; /* Already in the root */
981
982 dir = g_dirname(current);
983 filer_change_to(filer_window, dir, g_basename(current));
984 g_free(dir);
985 }
986
987 /* Removes trailing /s from path (modified in place) */
988 static void tidy_sympath(gchar *path)
989 {
990 int l;
991
992 g_return_if_fail(path != NULL);
993
994 l = strlen(path);
995 while (l > 1 && path[l - 1] == '/')
996 {
997 l--;
998 path[l] = '\0';
999 }
1000 }
1001
1002 /* Make filer_window display path. When finished, highlight item 'from', or
1003 * the first item if from is NULL. If there is currently no cursor then
1004 * simply wink 'from' (if not NULL).
1005 */
1006 void filer_change_to(FilerWindow *filer_window,
1007 const char *path, const char *from)
1008 {
1009 char *from_dup;
1010 char *sym_path, *real_path;
1011 Directory *new_dir;
1012
1013 g_return_if_fail(filer_window != NULL);
1014
1015 filer_cancel_thumbnails(filer_window);
1016
1017 tooltip_show(NULL);
1018
1019 sym_path = g_strdup(path);
1020 real_path = pathdup(path);
1021 new_dir = g_fscache_lookup(dir_cache, real_path);
1022
1023 if (!new_dir)
1024 {
1025 delayed_error(_("Directory '%s' is not accessible"),
1026 sym_path);
1027 g_free(real_path);
1028 g_free(sym_path);
1029 return;
1030 }
1031
1032 if (o_unique_filer_windows.int_value)
1033 {
1034 FilerWindow *fw;
1035
1036 fw = find_filer_window(sym_path, filer_window);
1037 if (fw)
1038 gtk_widget_destroy(fw->window);
1039 }
1040
1041 from_dup = from && *from ? g_strdup(from) : NULL;
1042
1043 detach(filer_window);
1044 g_free(filer_window->real_path);
1045 g_free(filer_window->sym_path);
1046 filer_window->real_path = real_path;
1047 filer_window->sym_path = sym_path;
1048 tidy_sympath(filer_window->sym_path);
1049
1050 filer_window->directory = new_dir;
1051
1052 g_free(filer_window->auto_select);
1053 filer_window->had_cursor = filer_window->collection->cursor_item != -1
1054 || filer_window->had_cursor;
1055 filer_window->auto_select = from_dup;
1056
1057 filer_set_title(filer_window);
1058 if (filer_window->window->window)
1059 gdk_window_set_role(filer_window->window->window,
1060 filer_window->sym_path);
1061 collection_set_cursor_item(filer_window->collection, -1);
1062
1063 attach(filer_window);
1064
1065 set_style_by_number_of_items(filer_window);
1066
1067 if (o_filer_auto_resize.int_value == RESIZE_ALWAYS)
1068 filer_window_autosize(filer_window, TRUE);
1069
1070 if (filer_window->mini_type == MINI_PATH)
1071 gtk_idle_add((GtkFunction) minibuffer_show_cb,
1072 filer_window);
1073 }
1074
1075 /* Returns a list containing the full (sym) pathname of every selected item.
1076 * You must g_free() each item in the list.
1077 */
1078 GList *filer_selected_items(FilerWindow *filer_window)
1079 {
1080 GList *retval = NULL;
1081 guchar *dir = filer_window->sym_path;
1082 ViewIter iter;
1083 DirItem *item;
1084
1085 view_get_iter(filer_window->view, &iter, VIEW_ITER_SELECTED);
1086 while ((item = iter.next(&iter)))
1087 {
1088 retval = g_list_prepend(retval,
1089 g_strdup(make_path(dir, item->leafname)->str));
1090 }
1091
1092 return g_list_reverse(retval);
1093 }
1094
1095 DirItem *filer_selected_item(FilerWindow *filer_window)
1096 {
1097 Collection *collection = filer_window->collection;
1098 int item;
1099
1100 item = collection_selected_item_number(collection);
1101
1102 if (item > -1)
1103 return (DirItem *) collection->items[item].data;
1104 return NULL;
1105 }
1106
1107 /* Creates and shows a new filer window.
1108 * If src_win != NULL then display options can be taken from that source window.
1109 * Returns the new filer window, or NULL on error.
1110 * Note: if unique windows is in use, may return an existing window.
1111 */
1112 FilerWindow *filer_opendir(const char *path, FilerWindow *src_win)
1113 {
1114 FilerWindow *filer_window;
1115 char *real_path;
1116 DisplayStyle dstyle;
1117 DetailsType dtype;
1118
1119 /* Get the real pathname of the directory and copy it */
1120 real_path = pathdup(path);
1121
1122 if (o_unique_filer_windows.int_value)
1123 {
1124 FilerWindow *same_dir_window;
1125
1126 same_dir_window = find_filer_window(path, NULL);
1127
1128 if (same_dir_window)
1129 {
1130 gtk_window_present(GTK_WINDOW(same_dir_window->window));
1131 return same_dir_window;
1132 }
1133 }
1134
1135 filer_window = g_new(FilerWindow, 1);
1136 filer_window->message = NULL;
1137 filer_window->minibuffer = NULL;
1138 filer_window->minibuffer_label = NULL;
1139 filer_window->minibuffer_area = NULL;
1140 filer_window->temp_show_hidden = FALSE;
1141 filer_window->sym_path = g_strdup(path);
1142 filer_window->real_path = real_path;
1143 filer_window->scanning = FALSE;
1144 filer_window->had_cursor = FALSE;
1145 filer_window->auto_select = NULL;
1146 filer_window->toolbar_text = NULL;
1147 filer_window->target_cb = NULL;
1148 filer_window->mini_type = MINI_NONE;
1149 filer_window->selection_state = GTK_STATE_INSENSITIVE;
1150 filer_window->toolbar = NULL;
1151 filer_window->toplevel_vbox = NULL;
1152
1153 tidy_sympath(filer_window->sym_path);
1154
1155 /* Finds the entry for this directory in the dir cache, creating
1156 * a new one if needed. This does not cause a scan to start,
1157 * so if a new entry is created then it will be empty.
1158 */
1159 filer_window->directory = g_fscache_lookup(dir_cache, real_path);
1160 if (!filer_window->directory)
1161 {
1162 delayed_error(_("Directory '%s' not found."), path);
1163 g_free(filer_window->real_path);
1164 g_free(filer_window->sym_path);
1165 g_free(filer_window);
1166 return NULL;
1167 }
1168
1169 filer_window->temp_item_selected = FALSE;
1170 filer_window->flags = (FilerFlags) 0;
1171 filer_window->details_type = DETAILS_SUMMARY;
1172 filer_window->display_style = UNKNOWN_STYLE;
1173 filer_window->thumb_queue = NULL;
1174 filer_window->max_thumbs = 0;
1175
1176 if (src_win && o_display_inherit_options.int_value)
1177 {
1178 filer_window->sort_fn = src_win->sort_fn;
1179 dstyle = src_win->display_style;
1180 dtype = src_win->details_type;
1181 filer_window->show_hidden = src_win->show_hidden;
1182 filer_window->show_thumbs = src_win->show_thumbs;
1183 }
1184 else
1185 {
1186 int i = o_display_sort_by.int_value;
1187 filer_window->sort_fn = i == 0 ? sort_by_name :
1188 i == 1 ? sort_by_type :
1189 i == 2 ? sort_by_date :
1190 sort_by_size;
1191
1192 dstyle = o_display_size.int_value;
1193 dtype = o_display_details.int_value;
1194 filer_window->show_hidden =
1195 o_display_show_hidden.int_value;
1196 filer_window->show_thumbs =
1197 o_display_show_thumbs.int_value;
1198 }
1199
1200 /* Add all the user-interface elements & realise */
1201 filer_add_widgets(filer_window);
1202 if (src_win)
1203 gtk_window_set_position(GTK_WINDOW(filer_window->window),
1204 GTK_WIN_POS_MOUSE);
1205
1206 /* Connect to all the signal handlers */
1207 filer_add_signals(filer_window);
1208
1209 display_set_layout(filer_window, dstyle, dtype);
1210
1211 /* Open the window after a timeout, or when scanning stops.
1212 * Do this before attaching, because attach() might tell us to
1213 * stop scanning (if a scan isn't needed).
1214 */
1215 filer_window->open_timeout = gtk_timeout_add(500,
1216 (GtkFunction) open_filer_window,
1217 filer_window);
1218
1219 /* The collection is created empty and then attach() is called, which
1220 * links the filer window to the entry in the directory cache we
1221 * looked up / created above.
1222 *
1223 * The attach() function will immediately callback to the filer window
1224 * to deliver a list of all known entries in the directory (so,
1225 * collection->number_of_items may be valid after the call to
1226 * attach() returns).
1227 *
1228 * If the directory was not in the cache (because it hadn't been
1229 * opened it before) then the types and icons for the entries are
1230 * not know, but the list of names is.
1231 */
1232
1233 attach(filer_window);
1234
1235 number_of_windows++;
1236 all_filer_windows = g_list_prepend(all_filer_windows, filer_window);
1237
1238 return filer_window;
1239 }
1240
1241 /* This adds all the widgets to a new filer window. It is in a separate
1242 * function because filer_opendir() was getting too long...
1243 */
1244 static void filer_add_widgets(FilerWindow *filer_window)
1245 {
1246 GtkWidget *hbox, *vbox, *collection;
1247
1248 /* Create the top-level window widget */
1249 filer_window->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1250 filer_set_title(filer_window);
1251
1252 /* This property is cleared when the window is destroyed.
1253 * You can thus ref filer_window->window and use this to see
1254 * if the window no longer exists.
1255 */
1256 g_object_set_data(G_OBJECT(filer_window->window),
1257 "filer_window", filer_window);
1258
1259 /* The view is the area that actually displays the files */
1260 filer_window->view = VIEW(view_collection_new(filer_window));
1261 gtk_widget_show(GTK_WIDGET(filer_window->view));
1262 collection = GTK_WIDGET(filer_window->collection); /* XXX */
1263 g_object_set_data(G_OBJECT(collection), "filer_window", filer_window);
1264
1265 /* Scrollbar on the right, everything else on the left */
1266 hbox = gtk_hbox_new(FALSE, 0);
1267 gtk_container_add(GTK_CONTAINER(filer_window->window), hbox);
1268
1269 vbox = gtk_vbox_new(FALSE, 0);
1270 gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);
1271 filer_window->toplevel_vbox = GTK_BOX(vbox);
1272
1273 /* If we want a toolbar, create it now */
1274 toolbar_update_toolbar(filer_window);
1275
1276 /* If there's a message that should be displayed in each window (eg
1277 * 'Running as root'), add it here.
1278 */
1279 if (show_user_message)
1280 {
1281 filer_window->message = gtk_label_new(show_user_message);
1282 gtk_box_pack_start(GTK_BOX(vbox), filer_window->message,
1283 FALSE, TRUE, 0);
1284 gtk_widget_show(filer_window->message);
1285 }
1286
1287 /* Now add the area for displaying the files.
1288 * The collection is one huge window that goes in a Viewport.
1289 */
1290 gtk_box_pack_start_defaults(GTK_BOX(vbox),
1291 GTK_WIDGET(filer_window->view));
1292 filer_window->scrollbar =
1293 gtk_vscrollbar_new(filer_window->collection->vadj);
1294
1295 /* And the minibuffer (hidden to start with) */
1296 create_minibuffer(filer_window);
1297 gtk_box_pack_start(GTK_BOX(vbox), filer_window->minibuffer_area,
1298 FALSE, TRUE, 0);
1299
1300 /* And the thumbnail progress bar (also hidden) */
1301 {
1302 GtkWidget *cancel;
1303
1304 filer_window->thumb_bar = gtk_hbox_new(FALSE, 2);
1305 gtk_box_pack_start(GTK_BOX(vbox), filer_window->thumb_bar,
1306 FALSE, TRUE, 0);
1307
1308 filer_window->thumb_progress = gtk_progress_bar_new();
1309
1310 gtk_box_pack_start(GTK_BOX(filer_window->thumb_bar),
1311 filer_window->thumb_progress, TRUE, TRUE, 0);
1312
1313 cancel = gtk_button_new_with_label(_("Cancel"));
1314 GTK_WIDGET_UNSET_FLAGS(cancel, GTK_CAN_FOCUS);
1315 gtk_box_pack_start(GTK_BOX(filer_window->thumb_bar),
1316 cancel, FALSE, TRUE, 0);
1317 g_signal_connect_swapped(cancel, "clicked",
1318 G_CALLBACK(filer_cancel_thumbnails),
1319 filer_window);
1320 }
1321
1322 /* Put the scrollbar on the left of everything else... */
1323 gtk_box_pack_start(GTK_BOX(hbox),
1324 filer_window->scrollbar, FALSE, TRUE, 0);
1325
1326 gtk_window_set_focus(GTK_WINDOW(filer_window->window), collection);
1327
1328 gtk_widget_show(hbox);
1329 gtk_widget_show(vbox);
1330 gtk_widget_show(filer_window->scrollbar);
1331 gtk_widget_show(collection);
1332
1333 gtk_widget_realize(filer_window->window);
1334
1335 gdk_window_set_role(filer_window->window->window,
1336 filer_window->sym_path);
1337
1338 filer_window_set_size(filer_window, 4, 4, TRUE);
1339 }
1340
1341 static void filer_add_signals(FilerWindow *filer_window)
1342 {
1343 GtkObject *collection = GTK_OBJECT(filer_window->collection);
1344 GtkTargetEntry target_table[] =
1345 {
1346 {"text/uri-list", 0, TARGET_URI_LIST},
1347 {"STRING", 0, TARGET_STRING},
1348 {"COMPOUND_TEXT", 0, TARGET_STRING},/* XXX: Treats as STRING */
1349 };
1350
1351 /* Events on the top-level window */
1352 gtk_widget_add_events(filer_window->window, GDK_ENTER_NOTIFY);
1353 g_signal_connect(filer_window->window, "enter-notify-event",
1354 G_CALLBACK(pointer_in), filer_window);
1355 g_signal_connect(filer_window->window, "leave-notify-event",
1356 G_CALLBACK(pointer_out), filer_window);
1357 g_signal_connect(filer_window->window, "destroy",
1358 G_CALLBACK(filer_window_destroyed), filer_window);
1359
1360 /* Events on the collection widget */
1361 gtk_widget_set_events(GTK_WIDGET(collection),
1362 GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK |
1363 GDK_BUTTON3_MOTION_MASK | GDK_POINTER_MOTION_MASK |
1364 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
1365
1366 g_signal_connect(collection, "selection_get",
1367 G_CALLBACK(selection_get), NULL);
1368 gtk_selection_add_targets(GTK_WIDGET(collection), GDK_SELECTION_PRIMARY,
1369 target_table,
1370 sizeof(target_table) / sizeof(*target_table));
1371
1372 g_signal_connect(filer_window->window, "key_press_event",
1373 G_CALLBACK(key_press_event), filer_window);
1374
1375 /* Drag and drop events */
1376 g_signal_connect(collection, "drag_data_get",
1377 GTK_SIGNAL_FUNC(drag_data_get), NULL);
1378 drag_set_dest(filer_window);
1379 }
1380
1381 static gint clear_scanning_display(FilerWindow *filer_window)
1382 {
1383 if (filer_exists(filer_window))
1384 filer_set_title(filer_window);
1385 return FALSE;
1386 }
1387
1388 static void set_scanning_display(FilerWindow *filer_window, gboolean scanning)
1389 {
1390 if (scanning == filer_window->scanning)
1391 return;
1392 filer_window->scanning = scanning;
1393
1394 if (scanning)
1395 filer_set_title(filer_window);
1396 else
1397 gtk_timeout_add(300, (GtkFunction) clear_scanning_display,
1398 filer_window);
1399 }
1400
1401 /* Note that filer_window may not exist after this call */
1402 void filer_update_dir(FilerWindow *filer_window, gboolean warning)
1403 {
1404 if (may_rescan(filer_window, warning))
1405 dir_update(filer_window->directory, filer_window->sym_path);
1406 }
1407
1408 void filer_update_all(void)
1409 {
1410 GList *next = all_filer_windows;
1411
1412 while (next)
1413 {
1414 FilerWindow *filer_window = (FilerWindow *) next->data;
1415
1416 /* Updating directory may remove it from list -- stop sending
1417 * patches to move this line!
1418 */
1419 next = next->next;
1420
1421 filer_update_dir(filer_window, TRUE);
1422 }
1423 }
1424
1425 /* Refresh the various caches even if we don't think we need to */
1426 void full_refresh(void)
1427 {
1428 mount_update(TRUE);
1429 }
1430
1431 /* See whether a filer window with a given path already exists
1432 * and is different from diff.
1433 */
1434 static FilerWindow *find_filer_window(const char *sym_path, FilerWindow *diff)
1435 {
1436 GList *next;
1437
1438 for (next = all_filer_windows; next; next = next->next)
1439 {
1440 FilerWindow *filer_window = (FilerWindow *) next->data;
1441
1442 if (filer_window != diff &&
1443 strcmp(sym_path, filer_window->sym_path) == 0)
1444 return filer_window;
1445 }
1446
1447 return NULL;
1448 }
1449
1450 /* This path has been mounted/umounted/deleted some files - update all dirs */
1451 void filer_check_mounted(const char *real_path)
1452 {
1453 GList *next = all_filer_windows;
1454 gchar *parent;
1455 int len;
1456
1457 len = strlen(real_path);
1458
1459 while (next)
1460 {
1461 FilerWindow *filer_window = (FilerWindow *) next->data;
1462
1463 next = next->next;
1464
1465 if (strncmp(real_path, filer_window->real_path, len) == 0)
1466 {
1467 char s = filer_window->real_path[len];
1468
1469 if (s == '/' || s == '\0')
1470 filer_update_dir(filer_window, FALSE);
1471 }
1472 }
1473
1474 parent = g_dirname(real_path);
1475 refresh_dirs(parent);
1476 g_free(parent);
1477
1478 icons_may_update(real_path);
1479 }
1480
1481 /* Close all windows displaying 'path' or subdirectories of 'path' */
1482 void filer_close_recursive(const char *path)
1483 {
1484 GList *next = all_filer_windows;
1485 gchar *real;
1486 int len;
1487
1488 real = pathdup(path);
1489 len = strlen(real);
1490
1491 while (next)
1492 {
1493 FilerWindow *filer_window = (FilerWindow *) next->data;
1494
1495 next = next->next;
1496
1497 if (strncmp(real, filer_window->real_path, len) == 0)
1498 {
1499 char s = filer_window->real_path[len];
1500
1501 if (len == 1 || s == '/' || s == '\0')
1502 gtk_widget_destroy(filer_window->window);
1503 }
1504 }
1505 }
1506
1507 /* Like minibuffer_show(), except that:
1508 * - It returns FALSE (to be used from an idle callback)
1509 * - It checks that the filer window still exists.
1510 */
1511 static gboolean minibuffer_show_cb(FilerWindow *filer_window)
1512 {
1513 if (filer_exists(filer_window))
1514 minibuffer_show(filer_window, MINI_PATH);
1515 return FALSE;
1516 }
1517
1518 /* TRUE iff filer_window points to an existing FilerWindow
1519 * structure.
1520 */
1521 gboolean filer_exists(FilerWindow *filer_window)
1522 {
1523 GList *next;
1524
1525 for (next = all_filer_windows; next; next = next->next)
1526 {
1527 FilerWindow *fw = (FilerWindow *) next->data;
1528
1529 if (fw == filer_window)
1530 return TRUE;
1531 }
1532
1533 return FALSE;
1534 }
1535
1536 /* Make sure the window title is up-to-date */
1537 void filer_set_title(FilerWindow *filer_window)
1538 {
1539 guchar *title = NULL;
1540 guchar *flags = "";
1541
1542 if (filer_window->scanning || filer_window->show_hidden ||
1543 filer_window->show_thumbs)
1544 {
1545 if (o_short_flag_names.int_value)
1546 {
1547 flags = g_strconcat(" +",
1548 filer_window->scanning ? _("S") : "",
1549 filer_window->show_hidden ? _("A") : "",
1550 filer_window->show_thumbs ? _("T") : "",
1551 NULL);
1552 }
1553 else
1554 {
1555 flags = g_strconcat(" (",
1556 filer_window->scanning ? _("Scanning, ") : "",
1557 filer_window->show_hidden ? _("All, ") : "",
1558 filer_window->show_thumbs ? _("Thumbs, ") : "",
1559 NULL);
1560 flags[strlen(flags) - 2] = ')';
1561 }
1562 }
1563
1564 if (not_local)
1565 title = g_strconcat("//", our_host_name(),
1566 filer_window->sym_path, flags, NULL);
1567
1568 if (!title && home_dir_len > 1 &&
1569 strncmp(filer_window->sym_path, home_dir, home_dir_len) == 0)
1570 {
1571 guchar sep = filer_window->sym_path[home_dir_len];
1572
1573 if (sep == '\0' || sep == '/')
1574 title = g_strconcat("~",
1575 filer_window->sym_path + home_dir_len,
1576 flags,
1577 NULL);
1578 }
1579
1580 if (!title)
1581 title = g_strconcat(filer_window->sym_path, flags, NULL);
1582
1583 gtk_window_set_title(GTK_WINDOW(filer_window->window), title);
1584 g_free(title);
1585
1586 if (flags[0] != '\0')
1587 g_free(flags);
1588 }
1589
1590 /* Reconnect to the same directory (used when the Show Hidden option is
1591 * toggled). This has the side-effect of updating the window title.
1592 */
1593 void filer_detach_rescan(FilerWindow *filer_window)
1594 {
1595 Directory *dir = filer_window->directory;
1596
1597 g_object_ref(dir);
1598 detach(filer_window);
1599 filer_window->directory = dir;
1600 attach(filer_window);
1601 }
1602
1603 /* Puts the filer window into target mode. When an item is chosen,
1604 * fn(filer_window, item, data) is called. 'reason' will be displayed
1605 * on the toolbar while target mode is active.
1606 *
1607 * Use fn == NULL to cancel target mode.
1608 */
1609 void filer_target_mode(FilerWindow *filer_window,
1610 TargetFunc fn,
1611 gpointer data,
1612 const char *reason)
1613 {
1614 TargetFunc old_fn = filer_window->target_cb;
1615
1616 if (fn != old_fn)
1617 gdk_window_set_cursor(
1618 GTK_WIDGET(filer_window->collection)->window,
1619 fn ? crosshair : NULL);
1620
1621 filer_window->target_cb = fn;
1622 filer_window->target_data = data;
1623
1624 if (filer_window->toolbar_text == NULL)
1625 return;
1626
1627 if (fn)
1628 gtk_label_set_text(
1629 GTK_LABEL(filer_window->toolbar_text), reason);
1630 else if (o_toolbar_info.int_value)
1631 {
1632 if (old_fn)
1633 toolbar_update_info(filer_window);
1634 }
1635 else
1636 gtk_label_set_text(GTK_LABEL(filer_window->toolbar_text), "");
1637 }
1638
1639 static void set_selection_state(FilerWindow *filer_window, gboolean normal)
1640 {
1641 GtkStateType old_state = filer_window->selection_state;
1642
1643 filer_window->selection_state = normal
1644 ? GTK_STATE_SELECTED : GTK_STATE_INSENSITIVE;
1645
1646 if (old_state != filer_window->selection_state
1647 && filer_window->collection->number_selected)
1648 gtk_widget_queue_draw(GTK_WIDGET(filer_window->collection));
1649 }
1650
1651 void filer_cancel_thumbnails(FilerWindow *filer_window)
1652 {
1653 gtk_widget_hide(filer_window->thumb_bar);
1654
1655 g_list_foreach(filer_window->thumb_queue, (GFunc) g_free, NULL);
1656 g_list_free(filer_window->thumb_queue);
1657 filer_window->thumb_queue = NULL;
1658 filer_window->max_thumbs = 0;
1659 }
1660
1661 /* Generate the next thumb for this window. The collection object is
1662 * unref'd when there is nothing more to do.
1663 * If the collection no longer has a filer window, nothing is done.
1664 */
1665 static gboolean filer_next_thumb_real(GObject *window)
1666 {
1667 FilerWindow *filer_window;
1668 gchar *path;
1669 int done, total;
1670
1671 filer_window = g_object_get_data(window, "filer_window");
1672
1673 if (!filer_window)
1674 {
1675 g_object_unref(window);
1676 return FALSE;
1677 }
1678
1679 if (!filer_window->thumb_queue)
1680 {
1681 filer_cancel_thumbnails(filer_window);
1682 g_object_unref(window);
1683 return FALSE;
1684 }
1685
1686 total = filer_window->max_thumbs;
1687 done = total - g_list_length(filer_window->thumb_queue);
1688
1689 path = (gchar *) filer_window->thumb_queue->data;
1690
1691 pixmap_background_thumb(path, (GFunc) filer_next_thumb, window);
1692
1693 filer_window->thumb_queue = g_list_remove(filer_window->thumb_queue,
1694 path);
1695 g_free(path);
1696
1697 gtk_progress_bar_set_fraction(
1698 GTK_PROGRESS_BAR(filer_window->thumb_progress),
1699 done / (float) total);
1700
1701 return FALSE;
1702 }
1703
1704 /* path is the thumb just loaded, if any.
1705 * collection is unref'd (eventually).
1706 */
1707 static void filer_next_thumb(GObject *window, const gchar *path)
1708 {
1709 if (path)
1710 dir_force_update_path(path);
1711
1712 gtk_idle_add((GtkFunction) filer_next_thumb_real, window);
1713 }
1714
1715 static void start_thumb_scanning(FilerWindow *filer_window)
1716 {
1717 if (GTK_WIDGET_VISIBLE(filer_window->thumb_bar))
1718 return; /* Already scanning */
1719
1720 gtk_widget_show_all(filer_window->thumb_bar);
1721
1722 g_object_ref(G_OBJECT(filer_window->window));
1723 filer_next_thumb(G_OBJECT(filer_window->window), NULL);
1724 }
1725
1726 /* Set this image to be loaded some time in the future */
1727 void filer_create_thumb(FilerWindow *filer_window, const gchar *path)
1728 {
1729 filer_window->max_thumbs++;
1730
1731 filer_window->thumb_queue = g_list_append(filer_window->thumb_queue,
1732 g_strdup(path));
1733
1734 if (filer_window->scanning)
1735 return; /* Will start when scan ends */
1736
1737 start_thumb_scanning(filer_window);
1738 }
1739
1740 /* If thumbnail display is on, look through all the items in this directory
1741 * and start creating or updating the thumbnails as needed.
1742 */
1743 void filer_create_thumbs(FilerWindow *filer_window)
1744 {
1745 DirItem *item;
1746 ViewIter iter;
1747
1748 if (!filer_window->show_thumbs)
1749 return;
1750
1751 view_get_iter(filer_window->view, &iter, 0);
1752
1753 while ((item = iter.next(&iter)))
1754 {
1755 MaskedPixmap *pixmap;
1756 gchar *path;
1757 gboolean found;
1758
1759 if (item->base_type != TYPE_FILE)
1760 continue;
1761
1762 if (strcmp(item->mime_type->media_type, "image") != 0)
1763 continue;
1764
1765 path = make_path(filer_window->real_path, item->leafname)->str;
1766
1767 pixmap = g_fscache_lookup_full(pixmap_cache, path,
1768 FSCACHE_LOOKUP_ONLY_NEW, &found);
1769 if (pixmap)
1770 g_object_unref(pixmap);
1771
1772 /* If we didn't get an image, it could be because:
1773 *
1774 * - We're loading the image now. found is TRUE,
1775 * and we'll update the item later.
1776 * - We tried to load the image and failed. found
1777 * is TRUE.
1778 * - We haven't tried loading the image. found is
1779 * FALSE, and we start creating the thumb here.
1780 */
1781 if (!found)
1782 filer_create_thumb(filer_window, path);
1783 }
1784 }
1785
1786 static void filer_options_changed(void)
1787 {
1788 if (o_short_flag_names.has_changed)
1789 {
1790 GList *next;
1791
1792 for (next = all_filer_windows; next; next = next->next)
1793 {
1794 FilerWindow *filer_window = (FilerWindow *) next->data;
1795
1796 filer_set_title(filer_window);
1797 }
1798 }
1799 }
1800
1801 /* Change to Large or Small icons depending on the number of items
1802 * in the directory, subject to options.
1803 */
1804 static void set_style_by_number_of_items(FilerWindow *filer_window)
1805 {
1806 int n;
1807
1808 g_return_if_fail(filer_window != NULL);
1809
1810 if (!o_filer_change_size.int_value)
1811 return; /* Don't auto-set style */
1812
1813 if (filer_window->display_style != LARGE_ICONS &&
1814 filer_window->display_style != SMALL_ICONS)
1815 return; /* Only change between these two styles */
1816
1817 n = filer_window->collection->number_of_items;
1818
1819 if (n >= o_filer_change_size_num.int_value)
1820 display_set_layout(filer_window, SMALL_ICONS,
1821 filer_window->details_type);
1822 else
1823 display_set_layout(filer_window, LARGE_ICONS,
1824 filer_window->details_type);
1825 }
1826
1827 /* Append interesting information to this GString */
1828 void filer_add_tip_details(FilerWindow *filer_window,
1829 GString *tip, DirItem *item)
1830 {
1831 guchar *fullpath = NULL;
1832
1833 fullpath = make_path(filer_window->real_path, item->leafname)->str;
1834
1835 if (item->flags & ITEM_FLAG_SYMLINK)
1836 {
1837 char *target;
1838
1839 target = readlink_dup(fullpath);
1840 if (target)
1841 {
1842 g_string_append(tip, _("Symbolic link to "));
1843 g_string_append(tip, target);
1844 g_string_append_c(tip, '\n');
1845 g_free(target);
1846 }
1847 }
1848
1849 if (item->flags & ITEM_FLAG_APPDIR)
1850 {
1851 XMLwrapper *info;
1852 xmlNode *node;
1853
1854 info = appinfo_get(fullpath, item);
1855 if (info && ((node = xml_get_section(info, NULL, "Summary"))))
1856 {
1857 guchar *str;
1858 str = xmlNodeListGetString(node->doc,
1859 node->xmlChildrenNode, 1);
1860 if (str)
1861 {
1862 g_string_append(tip, str);
1863 g_string_append_c(tip, '\n');
1864 g_free(str);
1865 }
1866 }
1867 if (info)
1868 g_object_unref(info);
1869 }
1870
1871 if (!g_utf8_validate(item->leafname, -1, NULL))
1872 g_string_append(tip,
1873 _("This filename is not valid UTF-8. "
1874 "You should rename it.\n"));
1875 }
Filer for the ROX desktop