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r1576: Improved iterator interface.
[rox-filer.git] / ROX-Filer / src / filer.c
bloba04ce2fce7a5078cc15bd726ac16a88dd37a6669
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 FilerWindow *window_with_focus = NULL;
70 GList *all_filer_windows = NULL;
71
72 static FilerWindow *window_with_primary = NULL;
73
74 /* Static prototypes */
75 static void attach(FilerWindow *filer_window);
76 static void detach(FilerWindow *filer_window);
77 static void filer_window_destroyed(GtkWidget *widget,
78 FilerWindow *filer_window);
79 static void update_display(Directory *dir,
80 DirAction action,
81 GPtrArray *items,
82 FilerWindow *filer_window);
83 static void set_scanning_display(FilerWindow *filer_window, gboolean scanning);
84 static gboolean may_rescan(FilerWindow *filer_window, gboolean warning);
85 static gboolean minibuffer_show_cb(FilerWindow *filer_window);
86 static FilerWindow *find_filer_window(const char *sym_path, FilerWindow *diff);
87 static void filer_add_widgets(FilerWindow *filer_window);
88 static void filer_add_signals(FilerWindow *filer_window);
89 static void filer_size_for(FilerWindow *filer_window,
90 int w, int h, int n, gboolean allow_shrink);
91
92 static void set_selection_state(FilerWindow *filer_window, gboolean normal);
93 static void filer_next_thumb(GObject *window, const gchar *path);
94 static void start_thumb_scanning(FilerWindow *filer_window);
95 static void filer_options_changed(void);
96 static void set_style_by_number_of_items(FilerWindow *filer_window);
97
98 static GdkCursor *busy_cursor = NULL;
99 static GdkCursor *crosshair = NULL;
100
101 /* Indicates whether the filer's display is different to the machine it
102 * is actually running on.
103 */
104 static gboolean not_local = FALSE;
105
106 static Option o_filer_change_size, o_filer_change_size_num;
107 static Option o_filer_size_limit, o_short_flag_names;
108 Option o_filer_auto_resize, o_unique_filer_windows;
109
110 void filer_init(void)
111 {
112 const gchar *ohost;
113 const gchar *dpy;
114 gchar *dpyhost, *tmp;
115
116 option_add_int(&o_filer_size_limit, "filer_size_limit", 75);
117 option_add_int(&o_filer_auto_resize, "filer_auto_resize",
118 RESIZE_ALWAYS);
119 option_add_int(&o_unique_filer_windows, "filer_unique_windows", 0);
120
121 option_add_int(&o_short_flag_names, "filer_short_flag_names", FALSE);
122
123 option_add_int(&o_filer_change_size, "filer_change_size", TRUE);
124 option_add_int(&o_filer_change_size_num, "filer_change_size_num", 30);
125
126 option_add_notify(filer_options_changed);
127
128 busy_cursor = gdk_cursor_new(GDK_WATCH);
129 crosshair = gdk_cursor_new(GDK_CROSSHAIR);
130
131 /* Is the display on the local machine, or are we being
132 * run remotely? See filer_set_title().
133 */
134 ohost = our_host_name();
135 dpy = gdk_get_display();
136 dpyhost = g_strdup(dpy);
137 tmp = strchr(dpyhost, ':');
138 if (tmp)
139 *tmp = '\0';
140
141 if (dpyhost[0] && strcmp(ohost, dpyhost) != 0)
142 {
143 /* Try the cannonical name for dpyhost (see our_host_name()
144 * in support.c).
145 */
146 struct hostent *ent;
147
148 ent = gethostbyname(dpyhost);
149 if (!ent || strcmp(ohost, ent->h_name) != 0)
150 not_local = TRUE;
151 }
152
153 g_free(dpyhost);
154 }
155
156 static gboolean if_deleted(gpointer item, gpointer removed)
157 {
158 int i = ((GPtrArray *) removed)->len;
159 DirItem **r = (DirItem **) ((GPtrArray *) removed)->pdata;
160 char *leafname = ((DirItem *) item)->leafname;
161
162 while (i--)
163 {
164 if (strcmp(leafname, r[i]->leafname) == 0)
165 return TRUE;
166 }
167
168 return FALSE;
169 }
170
171 /* Resize the filer window to w x h pixels, plus border (not clamped) */
172 static void filer_window_set_size(FilerWindow *filer_window,
173 int w, int h,
174 gboolean allow_shrink)
175 {
176 GtkWidget *window;
177
178 g_return_if_fail(filer_window != NULL);
179
180 if (filer_window->scrollbar)
181 w += filer_window->scrollbar->allocation.width;
182
183 if (o_toolbar.int_value != TOOLBAR_NONE)
184 h += filer_window->toolbar->allocation.height;
185 if (filer_window->message)
186 h += filer_window->message->allocation.height;
187
188 window = filer_window->window;
189
190 if (GTK_WIDGET_VISIBLE(window))
191 {
192 gint x, y;
193 GtkRequisition *req = &window->requisition;
194 GdkWindow *gdk_window = window->window;
195
196 w = MAX(req->width, w);
197 h = MAX(req->height, h);
198 gdk_window_get_position(gdk_window, &x, &y);
199
200 if (!allow_shrink)
201 {
202 gint old_w, old_h;
203
204 gdk_drawable_get_size(gdk_window, &old_w, &old_h);
205 w = MAX(w, old_w);
206 h = MAX(h, old_h);
207
208 if (w == old_w && h == old_h)
209 return;
210 }
211
212 if (x + w > screen_width || y + h > screen_height)
213 {
214 if (x + w > screen_width)
215 x = screen_width - w - 4;
216 if (y + h > screen_height)
217 y = screen_height - h - 4;
218 gdk_window_move_resize(gdk_window, x, y, w, h);
219 }
220 else
221 gdk_window_resize(gdk_window, w, h);
222 }
223 else
224 gtk_window_set_default_size(GTK_WINDOW(window), w, h);
225 }
226
227 /* Resize the window to fit the items currently in the Directory.
228 * This should be used once the Directory has been fully scanned, otherwise
229 * the window will appear too small. When opening a directory for the first
230 * time, the names will be known but not the types and images. We can
231 * still make a good estimate of the size.
232 */
233 void filer_window_autosize(FilerWindow *filer_window, gboolean allow_shrink)
234 {
235 Collection *collection = filer_window->collection;
236 int n;
237
238 n = collection->number_of_items;
239 n = MAX(n, 2);
240
241 filer_size_for(filer_window,
242 collection->item_width,
243 collection->item_height,
244 n, allow_shrink);
245 }
246
247 /* Choose a good size for this window, assuming n items of size (w, h) */
248 static void filer_size_for(FilerWindow *filer_window,
249 int w, int h, int n, gboolean allow_shrink)
250 {
251 int x;
252 int rows, cols;
253 int max_x, max_rows;
254 const float r = 2.5;
255 int t = 0;
256 int size_limit;
257 int space = 0;
258
259 size_limit = o_filer_size_limit.int_value;
260
261 /* Get the extra height required for the toolbar and minibuffer,
262 * if visible.
263 */
264 if (o_toolbar.int_value != TOOLBAR_NONE)
265 t = filer_window->toolbar->allocation.height;
266 if (filer_window->message)
267 t += filer_window->message->allocation.height;
268 if (GTK_WIDGET_VISIBLE(filer_window->minibuffer_area))
269 {
270 GtkRequisition req;
271
272 gtk_widget_size_request(filer_window->minibuffer_area, &req);
273 space = req.height + 2;
274 t += space;
275 }
276
277 max_x = (size_limit * screen_width) / 100;
278 max_rows = (size_limit * screen_height) / (h * 100);
279
280 /* Aim for a size where
281 * x = r(y + t + h), (1)
282 * unless that's too wide.
283 *
284 * t = toolbar (and minibuffer) height
285 * r = desired (width / height) ratio
286 *
287 * Want to display all items:
288 * (x/w)(y/h) = n
289 * => xy = nwh
290 * => x(x/r - t - h) = nwh (from 1)
291 * => xx - x.rt - hr(1 - nw) = 0
292 * => 2x = rt +/- sqrt(rt.rt + 4hr(nw - 1))
293 * Now,
294 * 4hr(nw - 1) > 0
295 * so
296 * sqrt(rt.rt + ...) > rt
297 *
298 * So, the +/- must be +:
299 *
300 * => x = (rt + sqrt(rt.rt + 4hr(nw - 1))) / 2
301 *
302 * ( + w - 1 to round up)
303 */
304 x = (r * t + sqrt(r*r*t*t + 4*h*r * (n*w - 1))) / 2 + w - 1;
305
306 /* Limit x */
307 if (x > max_x)
308 x = max_x;
309
310 cols = x / w;
311 cols = MAX(cols, 1);
312
313 /* Choose rows to display all items given our chosen x.
314 * Don't make the window *too* big!
315 */
316 rows = (n + cols - 1) / cols;
317 if (rows > max_rows)
318 rows = max_rows;
319
320 /* Leave some room for extra icons, but only in Small Icons mode
321 * otherwise it takes up too much space.
322 * Also, don't add space if the minibuffer is open.
323 */
324 if (space == 0)
325 space = filer_window->display_style == SMALL_ICONS ? h : 2;
326
327 filer_window_set_size(filer_window,
328 w * MAX(cols, 1),
329 h * MAX(rows, 1) + space,
330 allow_shrink);
331 }
332
333 /* Called on a timeout while scanning or when scanning ends
334 * (whichever happens first).
335 */
336 static gint open_filer_window(FilerWindow *filer_window)
337 {
338 view_style_changed(filer_window->view, 0);
339
340 if (filer_window->open_timeout)
341 {
342 gtk_timeout_remove(filer_window->open_timeout);
343 filer_window->open_timeout = 0;
344 }
345
346 if (!GTK_WIDGET_VISIBLE(filer_window->window))
347 {
348 set_style_by_number_of_items(filer_window);
349 filer_window_autosize(filer_window, TRUE);
350 gtk_widget_show(filer_window->window);
351 }
352
353 return FALSE;
354 }
355
356 static void update_display(Directory *dir,
357 DirAction action,
358 GPtrArray *items,
359 FilerWindow *filer_window)
360 {
361 Collection *collection = filer_window->collection;
362 ViewIface *view = (ViewIface *) filer_window->view;
363
364 switch (action)
365 {
366 case DIR_ADD:
367 view_add_items(view, items);
368 /* Open and resize if currently hidden */
369 open_filer_window(filer_window);
370 break;
371 case DIR_REMOVE:
372 view_delete_if(view, if_deleted, items);
373 break;
374 case DIR_START_SCAN:
375 set_scanning_display(filer_window, TRUE);
376 toolbar_update_info(filer_window);
377 break;
378 case DIR_END_SCAN:
379 if (filer_window->window->window)
380 gdk_window_set_cursor(
381 filer_window->window->window,
382 NULL);
383 set_scanning_display(filer_window, FALSE);
384 toolbar_update_info(filer_window);
385 open_filer_window(filer_window);
386
387 if (filer_window->had_cursor &&
388 collection->cursor_item == -1)
389 {
390 collection_set_cursor_item(collection, 0);
391 filer_window->had_cursor = FALSE;
392 }
393 if (filer_window->auto_select)
394 display_set_autoselect(filer_window,
395 filer_window->auto_select);
396 g_free(filer_window->auto_select);
397 filer_window->auto_select = NULL;
398
399 filer_create_thumbs(filer_window);
400
401 if (filer_window->thumb_queue)
402 start_thumb_scanning(filer_window);
403 break;
404 case DIR_UPDATE:
405 view_update_items(view, items);
406 break;
407 }
408 }
409
410 static void attach(FilerWindow *filer_window)
411 {
412 gdk_window_set_cursor(filer_window->window->window, busy_cursor);
413 view_clear(filer_window->view);
414 filer_window->scanning = TRUE;
415 dir_attach(filer_window->directory, (DirCallback) update_display,
416 filer_window);
417 filer_set_title(filer_window);
418 }
419
420 static void detach(FilerWindow *filer_window)
421 {
422 g_return_if_fail(filer_window->directory != NULL);
423
424 dir_detach(filer_window->directory,
425 (DirCallback) update_display, filer_window);
426 g_object_unref(filer_window->directory);
427 filer_window->directory = NULL;
428 }
429
430 static void filer_window_destroyed(GtkWidget *widget,
431 FilerWindow *filer_window)
432 {
433 all_filer_windows = g_list_remove(all_filer_windows, filer_window);
434
435 g_object_set_data(G_OBJECT(widget), "filer_window", NULL);
436
437 if (window_with_primary == filer_window)
438 window_with_primary = NULL;
439
440 if (window_with_focus == filer_window)
441 {
442 menu_popdown();
443 window_with_focus = NULL;
444 }
445
446 if (filer_window->directory)
447 detach(filer_window);
448
449 if (filer_window->open_timeout)
450 {
451 gtk_timeout_remove(filer_window->open_timeout);
452 filer_window->open_timeout = 0;
453 }
454
455 if (filer_window->thumb_queue)
456 {
457 g_list_foreach(filer_window->thumb_queue, (GFunc) g_free, NULL);
458 g_list_free(filer_window->thumb_queue);
459 }
460
461 tooltip_show(NULL);
462
463 g_free(filer_window->auto_select);
464 g_free(filer_window->real_path);
465 g_free(filer_window->sym_path);
466 g_free(filer_window);
467
468 one_less_window();
469 }
470
471 /* Returns TRUE iff the directory still exists. */
472 static gboolean may_rescan(FilerWindow *filer_window, gboolean warning)
473 {
474 Directory *dir;
475
476 g_return_val_if_fail(filer_window != NULL, FALSE);
477
478 /* We do a fresh lookup (rather than update) because the inode may
479 * have changed.
480 */
481 dir = g_fscache_lookup(dir_cache, filer_window->real_path);
482 if (!dir)
483 {
484 if (warning)
485 info_message(_("Directory missing/deleted"));
486 gtk_widget_destroy(filer_window->window);
487 return FALSE;
488 }
489 if (dir == filer_window->directory)
490 g_object_unref(dir);
491 else
492 {
493 detach(filer_window);
494 filer_window->directory = dir;
495 attach(filer_window);
496 }
497
498 return TRUE;
499 }
500
501 /* No items are now selected. This might be because another app claimed
502 * the selection or because the user unselected all the items.
503 */
504 void filer_lost_selection(FilerWindow *filer_window, gint time)
505 {
506 if (window_with_primary == filer_window)
507 {
508 window_with_primary = NULL;
509 gtk_selection_owner_set(NULL, GDK_SELECTION_PRIMARY, time);
510 }
511 }
512
513 /* Another app has claimed the primary selection */
514 void filer_lost_primary(FilerWindow *filer_window)
515 {
516 if (window_with_primary && window_with_primary == filer_window)
517 {
518 window_with_primary = NULL;
519 set_selection_state(filer_window, FALSE);
520 }
521 }
522
523 /* Someone wants us to send them the selection */
524 static void selection_get(GtkWidget *widget,
525 GtkSelectionData *selection_data,
526 guint info,
527 guint time,
528 gpointer data)
529 {
530 GString *reply, *header;
531 FilerWindow *filer_window;
532 ViewIter iter;
533 DirItem *item;
534
535 filer_window = g_object_get_data(G_OBJECT(widget), "filer_window");
536
537 reply = g_string_new(NULL);
538 header = g_string_new(NULL);
539
540 switch (info)
541 {
542 case TARGET_STRING:
543 g_string_sprintf(header, " %s",
544 make_path(filer_window->sym_path, "")->str);
545 break;
546 case TARGET_URI_LIST:
547 g_string_sprintf(header, " file://%s%s",
548 our_host_name_for_dnd(),
549 make_path(filer_window->sym_path, "")->str);
550 break;
551 }
552
553 view_get_iter(filer_window->view, &iter, VIEW_ITER_SELECTED);
554
555 while ((item = iter.next(&iter)))
556 {
557 g_string_append(reply, header->str);
558 g_string_append(reply, item->leafname);
559 }
560
561 if (reply->len > 0)
562 gtk_selection_data_set(selection_data, xa_string,
563 8, reply->str + 1, reply->len - 1);
564 else
565 {
566 g_warning("Attempt to paste empty selection!");
567 gtk_selection_data_set(selection_data, xa_string, 8, "", 0);
568 }
569
570 g_string_free(reply, TRUE);
571 g_string_free(header, TRUE);
572 }
573
574 void filer_selection_changed(FilerWindow *filer_window, gint time)
575 {
576 /* Selection has been changed -- try to grab the primary selection
577 * if we don't have it.
578 */
579 if (window_with_primary == filer_window)
580 return; /* Already got it */
581
582 if (!filer_window->collection->number_selected)
583 return; /* Nothing selected */
584
585 if (filer_window->temp_item_selected == FALSE &&
586 gtk_selection_owner_set(GTK_WIDGET(filer_window->collection),
587 GDK_SELECTION_PRIMARY,
588 time))
589 {
590 window_with_primary = filer_window;
591 set_selection_state(filer_window, TRUE);
592 }
593 else
594 set_selection_state(filer_window, FALSE);
595 }
596
597 /* Open the item (or add it to the shell command minibuffer) */
598 void filer_openitem(FilerWindow *filer_window, int item_number, OpenFlags flags)
599 {
600 gboolean shift = (flags & OPEN_SHIFT) != 0;
601 gboolean close_mini = flags & OPEN_FROM_MINI;
602 gboolean close_window = (flags & OPEN_CLOSE_WINDOW) != 0;
603 DirItem *item = (DirItem *)
604 filer_window->collection->items[item_number].data;
605 guchar *full_path;
606 gboolean wink = TRUE;
607 Directory *old_dir;
608
609 if (filer_window->mini_type == MINI_SHELL)
610 {
611 minibuffer_add(filer_window, item->leafname);
612 return;
613 }
614
615 if (!item->image)
616 dir_update_item(filer_window->directory, item->leafname);
617
618 if (item->base_type == TYPE_DIRECTORY)
619 {
620 /* Never close a filer window when opening a directory
621 * (click on a dir or click on an app with shift).
622 */
623 if (shift || !(item->flags & ITEM_FLAG_APPDIR))
624 close_window = FALSE;
625 }
626
627 full_path = make_path(filer_window->sym_path, item->leafname)->str;
628 if (shift && (item->flags & ITEM_FLAG_SYMLINK))
629 wink = FALSE;
630
631 old_dir = filer_window->directory;
632 if (run_diritem(full_path, item,
633 flags & OPEN_SAME_WINDOW ? filer_window : NULL,
634 filer_window,
635 shift))
636 {
637 if (old_dir != filer_window->directory)
638 return;
639
640 if (close_window)
641 gtk_widget_destroy(filer_window->window);
642 else
643 {
644 if (wink)
645 collection_wink_item(filer_window->collection,
646 item_number);
647 if (close_mini)
648 minibuffer_hide(filer_window);
649 }
650 }
651 }
652
653 static gint pointer_in(GtkWidget *widget,
654 GdkEventCrossing *event,
655 FilerWindow *filer_window)
656 {
657 may_rescan(filer_window, TRUE);
658 return FALSE;
659 }
660
661 static gint pointer_out(GtkWidget *widget,
662 GdkEventCrossing *event,
663 FilerWindow *filer_window)
664 {
665 tooltip_show(NULL);
666 return FALSE;
667 }
668
669 /* Move the cursor to the next selected item in direction 'dir'
670 * (+1 or -1).
671 */
672 static void next_selected(FilerWindow *filer_window, int dir)
673 {
674 Collection *collection = filer_window->collection;
675 int to_check = collection->number_of_items;
676 int item = collection->cursor_item;
677
678 g_return_if_fail(dir == 1 || dir == -1);
679
680 if (to_check > 0 && item == -1)
681 {
682 /* Cursor not currently on */
683 if (dir == 1)
684 item = 0;
685 else
686 item = collection->number_of_items - 1;
687
688 if (collection->items[item].selected)
689 goto found;
690 }
691
692 while (--to_check > 0)
693 {
694 item += dir;
695
696 if (item >= collection->number_of_items)
697 item = 0;
698 else if (item < 0)
699 item = collection->number_of_items - 1;
700
701 if (collection->items[item].selected)
702 goto found;
703 }
704
705 gdk_beep();
706 return;
707 found:
708 collection_set_cursor_item(collection, item);
709 }
710
711 static void return_pressed(FilerWindow *filer_window, GdkEventKey *event)
712 {
713 Collection *collection = filer_window->collection;
714 int item = collection->cursor_item;
715 TargetFunc cb = filer_window->target_cb;
716 gpointer data = filer_window->target_data;
717 OpenFlags flags = OPEN_SAME_WINDOW;
718
719 filer_target_mode(filer_window, NULL, NULL, NULL);
720 if (item < 0 || item >= collection->number_of_items)
721 return;
722
723 if (cb)
724 {
725 cb(filer_window, item, data);
726 return;
727 }
728
729 if (event->state & GDK_SHIFT_MASK)
730 flags |= OPEN_SHIFT;
731
732 filer_openitem(filer_window, item, flags);
733 }
734
735 /* Makes sure that 'groups' is up-to-date, reloading from file if it has
736 * changed. If no groups were loaded and there is no file then initialised
737 * groups to an empty document.
738 * Return the node for the 'name' group.
739 */
740 static xmlNode *group_find(char *name)
741 {
742 xmlNode *node;
743 gchar *path;
744
745 /* Update the groups, if possible */
746 path = choices_find_path_load("Groups.xml", PROJECT);
747 if (path)
748 {
749 XMLwrapper *wrapper;
750 wrapper = xml_cache_load(path);
751 if (wrapper)
752 {
753 if (groups)
754 g_object_unref(groups);
755 groups = wrapper;
756 }
757
758 g_free(path);
759 }
760
761 if (!groups)
762 {
763 groups = xml_new(NULL);
764 groups->doc = xmlNewDoc("1.0");
765
766 xmlDocSetRootElement(groups->doc,
767 xmlNewDocNode(groups->doc, NULL, "groups", NULL));
768 return NULL;
769 }
770
771 node = xmlDocGetRootElement(groups->doc);
772
773 for (node = node->xmlChildrenNode; node; node = node->next)
774 {
775 guchar *gid;
776
777 gid = xmlGetProp(node, "name");
778
779 if (!gid)
780 continue;
781
782 if (strcmp(name, gid) != 0)
783 continue;
784
785 g_free(gid);
786
787 return node;
788 }
789
790 return NULL;
791 }
792
793 static void group_save(FilerWindow *filer_window, char *name)
794 {
795 xmlNode *group;
796 guchar *save_path;
797 DirItem *item;
798 ViewIter iter;
799
800 group = group_find(name);
801 if (group)
802 {
803 xmlUnlinkNode(group);
804 xmlFreeNode(group);
805 }
806 group = xmlNewChild(xmlDocGetRootElement(groups->doc),
807 NULL, "group", NULL);
808 xmlSetProp(group, "name", name);
809
810 xmlNewChild(group, NULL, "directory", filer_window->sym_path);
811
812 view_get_iter(filer_window->view, &iter, VIEW_ITER_SELECTED);
813
814 while ((item = iter.next(&iter)))
815 xmlNewChild(group, NULL, "item", item->leafname);
816
817 save_path = choices_find_path_save("Groups.xml", PROJECT, TRUE);
818 if (save_path)
819 {
820 save_xml_file(groups->doc, save_path);
821 g_free(save_path);
822 }
823 }
824
825 static void group_restore(FilerWindow *filer_window, char *name)
826 {
827 GHashTable *in_group;
828 Collection *collection = filer_window->collection;
829 int j, n;
830 char *path;
831 xmlNode *group, *node;
832
833 group = group_find(name);
834
835 if (!group)
836 {
837 report_error(_("Group %s is not set. Select some files "
838 "and press Ctrl+%s to set the group. Press %s "
839 "on its own to reselect the files later."),
840 name, name, name);
841 return;
842 }
843
844 node = get_subnode(group, NULL, "directory");
845 g_return_if_fail(node != NULL);
846 path = xmlNodeListGetString(groups->doc, node->xmlChildrenNode, 1);
847 g_return_if_fail(path != NULL);
848
849 if (strcmp(path, filer_window->sym_path) != 0)
850 filer_change_to(filer_window, path, NULL);
851 g_free(path);
852
853 /* If an item at the start is selected then we could lose the
854 * primary selection after checking that item and then need to
855 * gain it again at the end. Therefore, if anything is selected
856 * then select the last item until the end of the search.
857 */
858 n = collection->number_of_items;
859 if (collection->number_selected)
860 collection_select_item(collection, n - 1);
861
862 in_group = g_hash_table_new(g_str_hash, g_str_equal);
863 for (node = group->xmlChildrenNode; node; node = node->next)
864 {
865 gchar *leaf;
866 if (node->type != XML_ELEMENT_NODE)
867 continue;
868 if (strcmp(node->name, "item") != 0)
869 continue;
870
871 leaf = xmlNodeListGetString(groups->doc,
872 node->xmlChildrenNode, 1);
873 if (!leaf)
874 g_warning("Missing leafname!\n");
875 else
876 g_hash_table_insert(in_group, leaf, filer_window);
877 }
878
879 for (j = 0; j < n; j++)
880 {
881 DirItem *item = (DirItem *) collection->items[j].data;
882
883 if (g_hash_table_lookup(in_group, item->leafname))
884 collection_select_item(collection, j);
885 else
886 collection_unselect_item(collection, j);
887 }
888
889 g_hash_table_foreach(in_group, (GHFunc) g_free, NULL);
890 g_hash_table_destroy(in_group);
891 }
892
893 /* Handle keys that can't be bound with the menu */
894 static gint key_press_event(GtkWidget *widget,
895 GdkEventKey *event,
896 FilerWindow *filer_window)
897 {
898 GtkWidget *focus = GTK_WINDOW(widget)->focus_widget;
899 guint key = event->keyval;
900 char group[2] = "1";
901
902 window_with_focus = filer_window;
903
904 /* Delay setting up the keys until now to speed loading... */
905 if (!filer_keys)
906 ensure_filer_menu(); /* Gets the keys working... */
907
908 if (!g_slist_find(filer_keys->acceleratables, widget))
909 gtk_window_add_accel_group(GTK_WINDOW(filer_window->window),
910 filer_keys);
911
912 if (focus && focus != widget &&
913 gtk_widget_get_toplevel(focus) == widget)
914 if (gtk_widget_event(focus, (GdkEvent *) event))
915 return TRUE; /* Handled */
916
917 switch (key)
918 {
919 case GDK_Escape:
920 filer_target_mode(filer_window, NULL, NULL, NULL);
921 return FALSE;
922 case GDK_Return:
923 return_pressed(filer_window, event);
924 break;
925 case GDK_ISO_Left_Tab:
926 next_selected(filer_window, -1);
927 break;
928 case GDK_Tab:
929 next_selected(filer_window, 1);
930 break;
931 case GDK_BackSpace:
932 change_to_parent(filer_window);
933 break;
934 case GDK_backslash:
935 tooltip_show(NULL);
936 show_filer_menu(filer_window, (GdkEvent *) event,
937 filer_window->collection->cursor_item);
938 break;
939 default:
940 if (key >= GDK_0 && key <= GDK_9)
941 group[0] = key - GDK_0 + '0';
942 else if (key >= GDK_KP_0 && key <= GDK_KP_9)
943 group[0] = key - GDK_KP_0 + '0';
944 else
945 return FALSE;
946
947
948 if (event->state & GDK_CONTROL_MASK)
949 group_save(filer_window, group);
950 else
951 group_restore(filer_window, group);
952 }
953
954 return TRUE;
955 }
956
957 void filer_open_parent(FilerWindow *filer_window)
958 {
959 char *dir;
960 const char *current = filer_window->sym_path;
961
962 if (current[0] == '/' && current[1] == '\0')
963 return; /* Already in the root */
964
965 dir = g_dirname(current);
966 filer_opendir(dir, filer_window);
967 g_free(dir);
968 }
969
970 void change_to_parent(FilerWindow *filer_window)
971 {
972 char *dir;
973 const char *current = filer_window->sym_path;
974
975 if (current[0] == '/' && current[1] == '\0')
976 return; /* Already in the root */
977
978 dir = g_dirname(current);
979 filer_change_to(filer_window, dir, g_basename(current));
980 g_free(dir);
981 }
982
983 /* Removes trailing /s from path (modified in place) */
984 static void tidy_sympath(gchar *path)
985 {
986 int l;
987
988 g_return_if_fail(path != NULL);
989
990 l = strlen(path);
991 while (l > 1 && path[l - 1] == '/')
992 {
993 l--;
994 path[l] = '\0';
995 }
996 }
997
998 /* Make filer_window display path. When finished, highlight item 'from', or
999 * the first item if from is NULL. If there is currently no cursor then
1000 * simply wink 'from' (if not NULL).
1001 */
1002 void filer_change_to(FilerWindow *filer_window,
1003 const char *path, const char *from)
1004 {
1005 char *from_dup;
1006 char *sym_path, *real_path;
1007 Directory *new_dir;
1008
1009 g_return_if_fail(filer_window != NULL);
1010
1011 filer_cancel_thumbnails(filer_window);
1012
1013 tooltip_show(NULL);
1014
1015 sym_path = g_strdup(path);
1016 real_path = pathdup(path);
1017 new_dir = g_fscache_lookup(dir_cache, real_path);
1018
1019 if (!new_dir)
1020 {
1021 delayed_error(_("Directory '%s' is not accessible"),
1022 sym_path);
1023 g_free(real_path);
1024 g_free(sym_path);
1025 return;
1026 }
1027
1028 if (o_unique_filer_windows.int_value)
1029 {
1030 FilerWindow *fw;
1031
1032 fw = find_filer_window(sym_path, filer_window);
1033 if (fw)
1034 gtk_widget_destroy(fw->window);
1035 }
1036
1037 from_dup = from && *from ? g_strdup(from) : NULL;
1038
1039 detach(filer_window);
1040 g_free(filer_window->real_path);
1041 g_free(filer_window->sym_path);
1042 filer_window->real_path = real_path;
1043 filer_window->sym_path = sym_path;
1044 tidy_sympath(filer_window->sym_path);
1045
1046 filer_window->directory = new_dir;
1047
1048 g_free(filer_window->auto_select);
1049 filer_window->had_cursor = filer_window->collection->cursor_item != -1
1050 || filer_window->had_cursor;
1051 filer_window->auto_select = from_dup;
1052
1053 filer_set_title(filer_window);
1054 if (filer_window->window->window)
1055 gdk_window_set_role(filer_window->window->window,
1056 filer_window->sym_path);
1057 collection_set_cursor_item(filer_window->collection, -1);
1058
1059 attach(filer_window);
1060
1061 set_style_by_number_of_items(filer_window);
1062
1063 if (o_filer_auto_resize.int_value == RESIZE_ALWAYS)
1064 filer_window_autosize(filer_window, TRUE);
1065
1066 if (filer_window->mini_type == MINI_PATH)
1067 gtk_idle_add((GtkFunction) minibuffer_show_cb,
1068 filer_window);
1069 }
1070
1071 /* Returns a list containing the full (sym) pathname of every selected item.
1072 * You must g_free() each item in the list.
1073 */
1074 GList *filer_selected_items(FilerWindow *filer_window)
1075 {
1076 GList *retval = NULL;
1077 guchar *dir = filer_window->sym_path;
1078 ViewIter iter;
1079 DirItem *item;
1080
1081 view_get_iter(filer_window->view, &iter, VIEW_ITER_SELECTED);
1082 while ((item = iter.next(&iter)))
1083 {
1084 retval = g_list_prepend(retval,
1085 g_strdup(make_path(dir, item->leafname)->str));
1086 }
1087
1088 return g_list_reverse(retval);
1089 }
1090
1091 DirItem *filer_selected_item(FilerWindow *filer_window)
1092 {
1093 Collection *collection = filer_window->collection;
1094 int item;
1095
1096 item = collection_selected_item_number(collection);
1097
1098 if (item > -1)
1099 return (DirItem *) collection->items[item].data;
1100 return NULL;
1101 }
1102
1103 /* Creates and shows a new filer window.
1104 * If src_win != NULL then display options can be taken from that source window.
1105 * Returns the new filer window, or NULL on error.
1106 * Note: if unique windows is in use, may return an existing window.
1107 */
1108 FilerWindow *filer_opendir(const char *path, FilerWindow *src_win)
1109 {
1110 FilerWindow *filer_window;
1111 char *real_path;
1112 DisplayStyle dstyle;
1113 DetailsType dtype;
1114
1115 /* Get the real pathname of the directory and copy it */
1116 real_path = pathdup(path);
1117
1118 if (o_unique_filer_windows.int_value)
1119 {
1120 FilerWindow *same_dir_window;
1121
1122 same_dir_window = find_filer_window(path, NULL);
1123
1124 if (same_dir_window)
1125 {
1126 gtk_window_present(GTK_WINDOW(same_dir_window->window));
1127 return same_dir_window;
1128 }
1129 }
1130
1131 filer_window = g_new(FilerWindow, 1);
1132 filer_window->message = NULL;
1133 filer_window->minibuffer = NULL;
1134 filer_window->minibuffer_label = NULL;
1135 filer_window->minibuffer_area = NULL;
1136 filer_window->temp_show_hidden = FALSE;
1137 filer_window->sym_path = g_strdup(path);
1138 filer_window->real_path = real_path;
1139 filer_window->scanning = FALSE;
1140 filer_window->had_cursor = FALSE;
1141 filer_window->auto_select = NULL;
1142 filer_window->toolbar_text = NULL;
1143 filer_window->target_cb = NULL;
1144 filer_window->mini_type = MINI_NONE;
1145 filer_window->selection_state = GTK_STATE_INSENSITIVE;
1146 filer_window->toolbar = NULL;
1147 filer_window->toplevel_vbox = NULL;
1148
1149 tidy_sympath(filer_window->sym_path);
1150
1151 /* Finds the entry for this directory in the dir cache, creating
1152 * a new one if needed. This does not cause a scan to start,
1153 * so if a new entry is created then it will be empty.
1154 */
1155 filer_window->directory = g_fscache_lookup(dir_cache, real_path);
1156 if (!filer_window->directory)
1157 {
1158 delayed_error(_("Directory '%s' not found."), path);
1159 g_free(filer_window->real_path);
1160 g_free(filer_window->sym_path);
1161 g_free(filer_window);
1162 return NULL;
1163 }
1164
1165 filer_window->temp_item_selected = FALSE;
1166 filer_window->flags = (FilerFlags) 0;
1167 filer_window->details_type = DETAILS_SUMMARY;
1168 filer_window->display_style = UNKNOWN_STYLE;
1169 filer_window->thumb_queue = NULL;
1170 filer_window->max_thumbs = 0;
1171
1172 if (src_win && o_display_inherit_options.int_value)
1173 {
1174 filer_window->sort_fn = src_win->sort_fn;
1175 dstyle = src_win->display_style;
1176 dtype = src_win->details_type;
1177 filer_window->show_hidden = src_win->show_hidden;
1178 filer_window->show_thumbs = src_win->show_thumbs;
1179 }
1180 else
1181 {
1182 int i = o_display_sort_by.int_value;
1183 filer_window->sort_fn = i == 0 ? sort_by_name :
1184 i == 1 ? sort_by_type :
1185 i == 2 ? sort_by_date :
1186 sort_by_size;
1187
1188 dstyle = o_display_size.int_value;
1189 dtype = o_display_details.int_value;
1190 filer_window->show_hidden =
1191 o_display_show_hidden.int_value;
1192 filer_window->show_thumbs =
1193 o_display_show_thumbs.int_value;
1194 }
1195
1196 /* Add all the user-interface elements & realise */
1197 filer_add_widgets(filer_window);
1198 if (src_win)
1199 gtk_window_set_position(GTK_WINDOW(filer_window->window),
1200 GTK_WIN_POS_MOUSE);
1201
1202 /* Connect to all the signal handlers */
1203 filer_add_signals(filer_window);
1204
1205 display_set_layout(filer_window, dstyle, dtype);
1206
1207 /* Open the window after a timeout, or when scanning stops.
1208 * Do this before attaching, because attach() might tell us to
1209 * stop scanning (if a scan isn't needed).
1210 */
1211 filer_window->open_timeout = gtk_timeout_add(500,
1212 (GtkFunction) open_filer_window,
1213 filer_window);
1214
1215 /* The collection is created empty and then attach() is called, which
1216 * links the filer window to the entry in the directory cache we
1217 * looked up / created above.
1218 *
1219 * The attach() function will immediately callback to the filer window
1220 * to deliver a list of all known entries in the directory (so,
1221 * collection->number_of_items may be valid after the call to
1222 * attach() returns).
1223 *
1224 * If the directory was not in the cache (because it hadn't been
1225 * opened it before) then the types and icons for the entries are
1226 * not know, but the list of names is.
1227 */
1228
1229 attach(filer_window);
1230
1231 number_of_windows++;
1232 all_filer_windows = g_list_prepend(all_filer_windows, filer_window);
1233
1234 return filer_window;
1235 }
1236
1237 /* This adds all the widgets to a new filer window. It is in a separate
1238 * function because filer_opendir() was getting too long...
1239 */
1240 static void filer_add_widgets(FilerWindow *filer_window)
1241 {
1242 GtkWidget *hbox, *vbox, *collection;
1243
1244 /* Create the top-level window widget */
1245 filer_window->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1246 filer_set_title(filer_window);
1247
1248 /* This property is cleared when the window is destroyed.
1249 * You can thus ref filer_window->window and use this to see
1250 * if the window no longer exists.
1251 */
1252 g_object_set_data(G_OBJECT(filer_window->window),
1253 "filer_window", filer_window);
1254
1255 /* The view is the area that actually displays the files */
1256 filer_window->view = VIEW(view_collection_new(filer_window));
1257 gtk_widget_show(GTK_WIDGET(filer_window->view));
1258 collection = GTK_WIDGET(filer_window->collection); /* XXX */
1259 g_object_set_data(G_OBJECT(collection), "filer_window", filer_window);
1260
1261 /* Scrollbar on the right, everything else on the left */
1262 hbox = gtk_hbox_new(FALSE, 0);
1263 gtk_container_add(GTK_CONTAINER(filer_window->window), hbox);
1264
1265 vbox = gtk_vbox_new(FALSE, 0);
1266 gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);
1267 filer_window->toplevel_vbox = GTK_BOX(vbox);
1268
1269 /* If we want a toolbar, create it now */
1270 toolbar_update_toolbar(filer_window);
1271
1272 /* If there's a message that should be displayed in each window (eg
1273 * 'Running as root'), add it here.
1274 */
1275 if (show_user_message)
1276 {
1277 filer_window->message = gtk_label_new(show_user_message);
1278 gtk_box_pack_start(GTK_BOX(vbox), filer_window->message,
1279 FALSE, TRUE, 0);
1280 gtk_widget_show(filer_window->message);
1281 }
1282
1283 /* Now add the area for displaying the files.
1284 * The collection is one huge window that goes in a Viewport.
1285 */
1286 gtk_box_pack_start_defaults(GTK_BOX(vbox),
1287 GTK_WIDGET(filer_window->view));
1288 filer_window->scrollbar =
1289 gtk_vscrollbar_new(filer_window->collection->vadj);
1290
1291 /* And the minibuffer (hidden to start with) */
1292 create_minibuffer(filer_window);
1293 gtk_box_pack_start(GTK_BOX(vbox), filer_window->minibuffer_area,
1294 FALSE, TRUE, 0);
1295
1296 /* And the thumbnail progress bar (also hidden) */
1297 {
1298 GtkWidget *cancel;
1299
1300 filer_window->thumb_bar = gtk_hbox_new(FALSE, 2);
1301 gtk_box_pack_start(GTK_BOX(vbox), filer_window->thumb_bar,
1302 FALSE, TRUE, 0);
1303
1304 filer_window->thumb_progress = gtk_progress_bar_new();
1305
1306 gtk_box_pack_start(GTK_BOX(filer_window->thumb_bar),
1307 filer_window->thumb_progress, TRUE, TRUE, 0);
1308
1309 cancel = gtk_button_new_with_label(_("Cancel"));
1310 GTK_WIDGET_UNSET_FLAGS(cancel, GTK_CAN_FOCUS);
1311 gtk_box_pack_start(GTK_BOX(filer_window->thumb_bar),
1312 cancel, FALSE, TRUE, 0);
1313 g_signal_connect_swapped(cancel, "clicked",
1314 G_CALLBACK(filer_cancel_thumbnails),
1315 filer_window);
1316 }
1317
1318 /* Put the scrollbar on the left of everything else... */
1319 gtk_box_pack_start(GTK_BOX(hbox),
1320 filer_window->scrollbar, FALSE, TRUE, 0);
1321
1322 gtk_window_set_focus(GTK_WINDOW(filer_window->window), collection);
1323
1324 gtk_widget_show(hbox);
1325 gtk_widget_show(vbox);
1326 gtk_widget_show(filer_window->scrollbar);
1327 gtk_widget_show(collection);
1328
1329 gtk_widget_realize(filer_window->window);
1330
1331 gdk_window_set_role(filer_window->window->window,
1332 filer_window->sym_path);
1333
1334 filer_window_set_size(filer_window, 4, 4, TRUE);
1335 }
1336
1337 static void filer_add_signals(FilerWindow *filer_window)
1338 {
1339 GtkObject *collection = GTK_OBJECT(filer_window->collection);
1340 GtkTargetEntry target_table[] =
1341 {
1342 {"text/uri-list", 0, TARGET_URI_LIST},
1343 {"STRING", 0, TARGET_STRING},
1344 {"COMPOUND_TEXT", 0, TARGET_STRING},/* XXX: Treats as STRING */
1345 };
1346
1347 /* Events on the top-level window */
1348 gtk_widget_add_events(filer_window->window, GDK_ENTER_NOTIFY);
1349 g_signal_connect(filer_window->window, "enter-notify-event",
1350 G_CALLBACK(pointer_in), filer_window);
1351 g_signal_connect(filer_window->window, "leave-notify-event",
1352 G_CALLBACK(pointer_out), filer_window);
1353 g_signal_connect(filer_window->window, "destroy",
1354 G_CALLBACK(filer_window_destroyed), filer_window);
1355
1356 /* Events on the collection widget */
1357 gtk_widget_set_events(GTK_WIDGET(collection),
1358 GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK |
1359 GDK_BUTTON3_MOTION_MASK | GDK_POINTER_MOTION_MASK |
1360 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
1361
1362 g_signal_connect(collection, "selection_get",
1363 G_CALLBACK(selection_get), NULL);
1364 gtk_selection_add_targets(GTK_WIDGET(collection), GDK_SELECTION_PRIMARY,
1365 target_table,
1366 sizeof(target_table) / sizeof(*target_table));
1367
1368 g_signal_connect(filer_window->window, "key_press_event",
1369 G_CALLBACK(key_press_event), filer_window);
1370
1371 /* Drag and drop events */
1372 g_signal_connect(collection, "drag_data_get",
1373 GTK_SIGNAL_FUNC(drag_data_get), NULL);
1374 drag_set_dest(filer_window);
1375 }
1376
1377 static gint clear_scanning_display(FilerWindow *filer_window)
1378 {
1379 if (filer_exists(filer_window))
1380 filer_set_title(filer_window);
1381 return FALSE;
1382 }
1383
1384 static void set_scanning_display(FilerWindow *filer_window, gboolean scanning)
1385 {
1386 if (scanning == filer_window->scanning)
1387 return;
1388 filer_window->scanning = scanning;
1389
1390 if (scanning)
1391 filer_set_title(filer_window);
1392 else
1393 gtk_timeout_add(300, (GtkFunction) clear_scanning_display,
1394 filer_window);
1395 }
1396
1397 /* Note that filer_window may not exist after this call */
1398 void filer_update_dir(FilerWindow *filer_window, gboolean warning)
1399 {
1400 if (may_rescan(filer_window, warning))
1401 dir_update(filer_window->directory, filer_window->sym_path);
1402 }
1403
1404 void filer_update_all(void)
1405 {
1406 GList *next = all_filer_windows;
1407
1408 while (next)
1409 {
1410 FilerWindow *filer_window = (FilerWindow *) next->data;
1411
1412 /* Updating directory may remove it from list -- stop sending
1413 * patches to move this line!
1414 */
1415 next = next->next;
1416
1417 filer_update_dir(filer_window, TRUE);
1418 }
1419 }
1420
1421 /* Refresh the various caches even if we don't think we need to */
1422 void full_refresh(void)
1423 {
1424 mount_update(TRUE);
1425 }
1426
1427 /* See whether a filer window with a given path already exists
1428 * and is different from diff.
1429 */
1430 static FilerWindow *find_filer_window(const char *sym_path, FilerWindow *diff)
1431 {
1432 GList *next;
1433
1434 for (next = all_filer_windows; next; next = next->next)
1435 {
1436 FilerWindow *filer_window = (FilerWindow *) next->data;
1437
1438 if (filer_window != diff &&
1439 strcmp(sym_path, filer_window->sym_path) == 0)
1440 return filer_window;
1441 }
1442
1443 return NULL;
1444 }
1445
1446 /* This path has been mounted/umounted/deleted some files - update all dirs */
1447 void filer_check_mounted(const char *real_path)
1448 {
1449 GList *next = all_filer_windows;
1450 gchar *parent;
1451 int len;
1452
1453 len = strlen(real_path);
1454
1455 while (next)
1456 {
1457 FilerWindow *filer_window = (FilerWindow *) next->data;
1458
1459 next = next->next;
1460
1461 if (strncmp(real_path, filer_window->real_path, len) == 0)
1462 {
1463 char s = filer_window->real_path[len];
1464
1465 if (s == '/' || s == '\0')
1466 filer_update_dir(filer_window, FALSE);
1467 }
1468 }
1469
1470 parent = g_dirname(real_path);
1471 refresh_dirs(parent);
1472 g_free(parent);
1473
1474 icons_may_update(real_path);
1475 }
1476
1477 /* Close all windows displaying 'path' or subdirectories of 'path' */
1478 void filer_close_recursive(const char *path)
1479 {
1480 GList *next = all_filer_windows;
1481 gchar *real;
1482 int len;
1483
1484 real = pathdup(path);
1485 len = strlen(real);
1486
1487 while (next)
1488 {
1489 FilerWindow *filer_window = (FilerWindow *) next->data;
1490
1491 next = next->next;
1492
1493 if (strncmp(real, filer_window->real_path, len) == 0)
1494 {
1495 char s = filer_window->real_path[len];
1496
1497 if (len == 1 || s == '/' || s == '\0')
1498 gtk_widget_destroy(filer_window->window);
1499 }
1500 }
1501 }
1502
1503 /* Like minibuffer_show(), except that:
1504 * - It returns FALSE (to be used from an idle callback)
1505 * - It checks that the filer window still exists.
1506 */
1507 static gboolean minibuffer_show_cb(FilerWindow *filer_window)
1508 {
1509 if (filer_exists(filer_window))
1510 minibuffer_show(filer_window, MINI_PATH);
1511 return FALSE;
1512 }
1513
1514 /* TRUE iff filer_window points to an existing FilerWindow
1515 * structure.
1516 */
1517 gboolean filer_exists(FilerWindow *filer_window)
1518 {
1519 GList *next;
1520
1521 for (next = all_filer_windows; next; next = next->next)
1522 {
1523 FilerWindow *fw = (FilerWindow *) next->data;
1524
1525 if (fw == filer_window)
1526 return TRUE;
1527 }
1528
1529 return FALSE;
1530 }
1531
1532 /* Make sure the window title is up-to-date */
1533 void filer_set_title(FilerWindow *filer_window)
1534 {
1535 guchar *title = NULL;
1536 guchar *flags = "";
1537
1538 if (filer_window->scanning || filer_window->show_hidden ||
1539 filer_window->show_thumbs)
1540 {
1541 if (o_short_flag_names.int_value)
1542 {
1543 flags = g_strconcat(" +",
1544 filer_window->scanning ? _("S") : "",
1545 filer_window->show_hidden ? _("A") : "",
1546 filer_window->show_thumbs ? _("T") : "",
1547 NULL);
1548 }
1549 else
1550 {
1551 flags = g_strconcat(" (",
1552 filer_window->scanning ? _("Scanning, ") : "",
1553 filer_window->show_hidden ? _("All, ") : "",
1554 filer_window->show_thumbs ? _("Thumbs, ") : "",
1555 NULL);
1556 flags[strlen(flags) - 2] = ')';
1557 }
1558 }
1559
1560 if (not_local)
1561 title = g_strconcat("//", our_host_name(),
1562 filer_window->sym_path, flags, NULL);
1563
1564 if (!title && home_dir_len > 1 &&
1565 strncmp(filer_window->sym_path, home_dir, home_dir_len) == 0)
1566 {
1567 guchar sep = filer_window->sym_path[home_dir_len];
1568
1569 if (sep == '\0' || sep == '/')
1570 title = g_strconcat("~",
1571 filer_window->sym_path + home_dir_len,
1572 flags,
1573 NULL);
1574 }
1575
1576 if (!title)
1577 title = g_strconcat(filer_window->sym_path, flags, NULL);
1578
1579 gtk_window_set_title(GTK_WINDOW(filer_window->window), title);
1580 g_free(title);
1581
1582 if (flags[0] != '\0')
1583 g_free(flags);
1584 }
1585
1586 /* Reconnect to the same directory (used when the Show Hidden option is
1587 * toggled). This has the side-effect of updating the window title.
1588 */
1589 void filer_detach_rescan(FilerWindow *filer_window)
1590 {
1591 Directory *dir = filer_window->directory;
1592
1593 g_object_ref(dir);
1594 detach(filer_window);
1595 filer_window->directory = dir;
1596 attach(filer_window);
1597 }
1598
1599 /* Puts the filer window into target mode. When an item is chosen,
1600 * fn(filer_window, item, data) is called. 'reason' will be displayed
1601 * on the toolbar while target mode is active.
1602 *
1603 * Use fn == NULL to cancel target mode.
1604 */
1605 void filer_target_mode(FilerWindow *filer_window,
1606 TargetFunc fn,
1607 gpointer data,
1608 const char *reason)
1609 {
1610 TargetFunc old_fn = filer_window->target_cb;
1611
1612 if (fn != old_fn)
1613 gdk_window_set_cursor(
1614 GTK_WIDGET(filer_window->collection)->window,
1615 fn ? crosshair : NULL);
1616
1617 filer_window->target_cb = fn;
1618 filer_window->target_data = data;
1619
1620 if (filer_window->toolbar_text == NULL)
1621 return;
1622
1623 if (fn)
1624 gtk_label_set_text(
1625 GTK_LABEL(filer_window->toolbar_text), reason);
1626 else if (o_toolbar_info.int_value)
1627 {
1628 if (old_fn)
1629 toolbar_update_info(filer_window);
1630 }
1631 else
1632 gtk_label_set_text(GTK_LABEL(filer_window->toolbar_text), "");
1633 }
1634
1635 static void set_selection_state(FilerWindow *filer_window, gboolean normal)
1636 {
1637 GtkStateType old_state = filer_window->selection_state;
1638
1639 filer_window->selection_state = normal
1640 ? GTK_STATE_SELECTED : GTK_STATE_INSENSITIVE;
1641
1642 if (old_state != filer_window->selection_state
1643 && filer_window->collection->number_selected)
1644 gtk_widget_queue_draw(GTK_WIDGET(filer_window->collection));
1645 }
1646
1647 void filer_cancel_thumbnails(FilerWindow *filer_window)
1648 {
1649 gtk_widget_hide(filer_window->thumb_bar);
1650
1651 g_list_foreach(filer_window->thumb_queue, (GFunc) g_free, NULL);
1652 g_list_free(filer_window->thumb_queue);
1653 filer_window->thumb_queue = NULL;
1654 filer_window->max_thumbs = 0;
1655 }
1656
1657 /* Generate the next thumb for this window. The collection object is
1658 * unref'd when there is nothing more to do.
1659 * If the collection no longer has a filer window, nothing is done.
1660 */
1661 static gboolean filer_next_thumb_real(GObject *window)
1662 {
1663 FilerWindow *filer_window;
1664 gchar *path;
1665 int done, total;
1666
1667 filer_window = g_object_get_data(window, "filer_window");
1668
1669 if (!filer_window)
1670 {
1671 g_object_unref(window);
1672 return FALSE;
1673 }
1674
1675 if (!filer_window->thumb_queue)
1676 {
1677 filer_cancel_thumbnails(filer_window);
1678 g_object_unref(window);
1679 return FALSE;
1680 }
1681
1682 total = filer_window->max_thumbs;
1683 done = total - g_list_length(filer_window->thumb_queue);
1684
1685 path = (gchar *) filer_window->thumb_queue->data;
1686
1687 pixmap_background_thumb(path, (GFunc) filer_next_thumb, window);
1688
1689 filer_window->thumb_queue = g_list_remove(filer_window->thumb_queue,
1690 path);
1691 g_free(path);
1692
1693 gtk_progress_bar_set_fraction(
1694 GTK_PROGRESS_BAR(filer_window->thumb_progress),
1695 done / (float) total);
1696
1697 return FALSE;
1698 }
1699
1700 /* path is the thumb just loaded, if any.
1701 * collection is unref'd (eventually).
1702 */
1703 static void filer_next_thumb(GObject *window, const gchar *path)
1704 {
1705 if (path)
1706 dir_force_update_path(path);
1707
1708 gtk_idle_add((GtkFunction) filer_next_thumb_real, window);
1709 }
1710
1711 static void start_thumb_scanning(FilerWindow *filer_window)
1712 {
1713 if (GTK_WIDGET_VISIBLE(filer_window->thumb_bar))
1714 return; /* Already scanning */
1715
1716 gtk_widget_show_all(filer_window->thumb_bar);
1717
1718 g_object_ref(G_OBJECT(filer_window->window));
1719 filer_next_thumb(G_OBJECT(filer_window->window), NULL);
1720 }
1721
1722 /* Set this image to be loaded some time in the future */
1723 void filer_create_thumb(FilerWindow *filer_window, const gchar *path)
1724 {
1725 filer_window->max_thumbs++;
1726
1727 filer_window->thumb_queue = g_list_append(filer_window->thumb_queue,
1728 g_strdup(path));
1729
1730 if (filer_window->scanning)
1731 return; /* Will start when scan ends */
1732
1733 start_thumb_scanning(filer_window);
1734 }
1735
1736 /* If thumbnail display is on, look through all the items in this directory
1737 * and start creating or updating the thumbnails as needed.
1738 */
1739 void filer_create_thumbs(FilerWindow *filer_window)
1740 {
1741 DirItem *item;
1742 ViewIter iter;
1743
1744 if (!filer_window->show_thumbs)
1745 return;
1746
1747 view_get_iter(filer_window->view, &iter, 0);
1748
1749 while ((item = iter.next(&iter)))
1750 {
1751 MaskedPixmap *pixmap;
1752 gchar *path;
1753 gboolean found;
1754
1755 if (item->base_type != TYPE_FILE)
1756 continue;
1757
1758 if (strcmp(item->mime_type->media_type, "image") != 0)
1759 continue;
1760
1761 path = make_path(filer_window->real_path, item->leafname)->str;
1762
1763 pixmap = g_fscache_lookup_full(pixmap_cache, path,
1764 FSCACHE_LOOKUP_ONLY_NEW, &found);
1765 if (pixmap)
1766 g_object_unref(pixmap);
1767
1768 /* If we didn't get an image, it could be because:
1769 *
1770 * - We're loading the image now. found is TRUE,
1771 * and we'll update the item later.
1772 * - We tried to load the image and failed. found
1773 * is TRUE.
1774 * - We haven't tried loading the image. found is
1775 * FALSE, and we start creating the thumb here.
1776 */
1777 if (!found)
1778 filer_create_thumb(filer_window, path);
1779 }
1780 }
1781
1782 static void filer_options_changed(void)
1783 {
1784 if (o_short_flag_names.has_changed)
1785 {
1786 GList *next;
1787
1788 for (next = all_filer_windows; next; next = next->next)
1789 {
1790 FilerWindow *filer_window = (FilerWindow *) next->data;
1791
1792 filer_set_title(filer_window);
1793 }
1794 }
1795 }
1796
1797 /* Change to Large or Small icons depending on the number of items
1798 * in the directory, subject to options.
1799 */
1800 static void set_style_by_number_of_items(FilerWindow *filer_window)
1801 {
1802 int n;
1803
1804 g_return_if_fail(filer_window != NULL);
1805
1806 if (!o_filer_change_size.int_value)
1807 return; /* Don't auto-set style */
1808
1809 if (filer_window->display_style != LARGE_ICONS &&
1810 filer_window->display_style != SMALL_ICONS)
1811 return; /* Only change between these two styles */
1812
1813 n = filer_window->collection->number_of_items;
1814
1815 if (n >= o_filer_change_size_num.int_value)
1816 display_set_layout(filer_window, SMALL_ICONS,
1817 filer_window->details_type);
1818 else
1819 display_set_layout(filer_window, LARGE_ICONS,
1820 filer_window->details_type);
1821 }
1822
1823 /* Append interesting information to this GString */
1824 void filer_add_tip_details(FilerWindow *filer_window,
1825 GString *tip, DirItem *item)
1826 {
1827 guchar *fullpath = NULL;
1828
1829 fullpath = make_path(filer_window->real_path, item->leafname)->str;
1830
1831 if (item->flags & ITEM_FLAG_SYMLINK)
1832 {
1833 char *target;
1834
1835 target = readlink_dup(fullpath);
1836 if (target)
1837 {
1838 g_string_append(tip, _("Symbolic link to "));
1839 g_string_append(tip, target);
1840 g_string_append_c(tip, '\n');
1841 g_free(target);
1842 }
1843 }
1844
1845 if (item->flags & ITEM_FLAG_APPDIR)
1846 {
1847 XMLwrapper *info;
1848 xmlNode *node;
1849
1850 info = appinfo_get(fullpath, item);
1851 if (info && ((node = xml_get_section(info, NULL, "Summary"))))
1852 {
1853 guchar *str;
1854 str = xmlNodeListGetString(node->doc,
1855 node->xmlChildrenNode, 1);
1856 if (str)
1857 {
1858 g_string_append(tip, str);
1859 g_string_append_c(tip, '\n');
1860 g_free(str);
1861 }
1862 }
1863 if (info)
1864 g_object_unref(info);
1865 }
1866
1867 if (!g_utf8_validate(item->leafname, -1, NULL))
1868 g_string_append(tip,
1869 _("This filename is not valid UTF-8. "
1870 "You should rename it.\n"));
1871 }
Filer for the ROX desktop