summaryrefslogtreecommitdiff
path: root/gtk/gtkfilechooserdialog.c
blob: dd8a9a8aaa41e92313cb9ee0d178568bcf4384fe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
/* GTK - The GIMP Toolkit
 * gtkfilechooserdialog.c: File selector dialog
 * Copyright (C) 2003, Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include "config.h"

#include "gtkfilechooserdialog.h"

#include "gtkfilechooserprivate.h"
#include "gtkfilechooserwidget.h"
#include "gtkfilechooserutils.h"
#include "gtkfilechooserembed.h"
#include "gtkfilesystem.h"
#include "gtksizerequest.h"
#include "gtktypebuiltins.h"
#include "gtkintl.h"

#include <stdarg.h>

#define GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE(o)  (GTK_FILE_CHOOSER_DIALOG (o)->priv)

static void gtk_file_chooser_dialog_finalize   (GObject                   *object);

static GObject* gtk_file_chooser_dialog_constructor  (GType                  type,
						      guint                  n_construct_properties,
						      GObjectConstructParam *construct_params);
static void     gtk_file_chooser_dialog_set_property (GObject               *object,
						      guint                  prop_id,
						      const GValue          *value,
						      GParamSpec            *pspec);
static void     gtk_file_chooser_dialog_get_property (GObject               *object,
						      guint                  prop_id,
						      GValue                *value,
						      GParamSpec            *pspec);

static void     gtk_file_chooser_dialog_map          (GtkWidget             *widget);
static void     gtk_file_chooser_dialog_unmap        (GtkWidget             *widget);

static void response_cb (GtkDialog *dialog,
			 gint       response_id);

G_DEFINE_TYPE_WITH_CODE (GtkFileChooserDialog, gtk_file_chooser_dialog, GTK_TYPE_DIALOG,
			 G_IMPLEMENT_INTERFACE (GTK_TYPE_FILE_CHOOSER,
						_gtk_file_chooser_delegate_iface_init))

static void
gtk_file_chooser_dialog_class_init (GtkFileChooserDialogClass *class)
{
  GObjectClass *gobject_class = G_OBJECT_CLASS (class);
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);

  gobject_class->constructor = gtk_file_chooser_dialog_constructor;
  gobject_class->set_property = gtk_file_chooser_dialog_set_property;
  gobject_class->get_property = gtk_file_chooser_dialog_get_property;
  gobject_class->finalize = gtk_file_chooser_dialog_finalize;

  widget_class->map       = gtk_file_chooser_dialog_map;
  widget_class->unmap     = gtk_file_chooser_dialog_unmap;

  _gtk_file_chooser_install_properties (gobject_class);

  g_type_class_add_private (class, sizeof (GtkFileChooserDialogPrivate));
}

static void
gtk_file_chooser_dialog_init (GtkFileChooserDialog *dialog)
{
  GtkWidget *action_area, *content_area;
  GtkFileChooserDialogPrivate *priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
								   GTK_TYPE_FILE_CHOOSER_DIALOG,
								   GtkFileChooserDialogPrivate);
  GtkDialog *fc_dialog = GTK_DIALOG (dialog);

  dialog->priv = priv;
  dialog->priv->response_requested = FALSE;

  content_area = gtk_dialog_get_content_area (fc_dialog);
  action_area = gtk_dialog_get_action_area (fc_dialog);

  gtk_container_set_border_width (GTK_CONTAINER (fc_dialog), 5);
  gtk_box_set_spacing (GTK_BOX (content_area), 2); /* 2 * 5 + 2 = 12 */
  gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);

  /* We do a signal connection here rather than overriding the method in
   * class_init because GtkDialog::response is a RUN_LAST signal.  We want *our*
   * handler to be run *first*, regardless of whether the user installs response
   * handlers of his own.
   */
  g_signal_connect (dialog, "response",
		    G_CALLBACK (response_cb), NULL);
}

static void
gtk_file_chooser_dialog_finalize (GObject *object)
{
  GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (object);

  g_free (dialog->priv->file_system);

  G_OBJECT_CLASS (gtk_file_chooser_dialog_parent_class)->finalize (object);  
}

static gboolean
is_stock_accept_response_id (int response_id)
{
  return (response_id == GTK_RESPONSE_ACCEPT
	  || response_id == GTK_RESPONSE_OK
	  || response_id == GTK_RESPONSE_YES
	  || response_id == GTK_RESPONSE_APPLY);
}

/* Callback used when the user activates a file in the file chooser widget */
static void
file_chooser_widget_file_activated (GtkFileChooser       *chooser,
				    GtkFileChooserDialog *dialog)
{
  GtkDialog *fc_dialog = GTK_DIALOG (dialog);
  GtkWidget *action_area;
  GList *children, *l;

  if (gtk_window_activate_default (GTK_WINDOW (dialog)))
    return;

  /* There probably isn't a default widget, so make things easier for the
   * programmer by looking for a reasonable button on our own.
   */
  action_area = gtk_dialog_get_action_area (fc_dialog);
  children = gtk_container_get_children (GTK_CONTAINER (action_area));

  for (l = children; l; l = l->next)
    {
      GtkWidget *widget;
      int response_id;

      widget = GTK_WIDGET (l->data);
      response_id = gtk_dialog_get_response_for_widget (fc_dialog, widget);
      if (gtk_widget_is_sensitive (widget) &&
          is_stock_accept_response_id (response_id))
	{
	  gtk_widget_activate (widget); /* Should we gtk_dialog_response (dialog, response_id) instead? */
	  break;
	}
    }

  g_list_free (children);
}

#if 0
/* FIXME: to see why this function is ifdef-ed out, see the comment below in
 * file_chooser_widget_default_size_changed().
 */
static void
load_position (int *out_xpos, int *out_ypos)
{
  GtkFileChooserSettings *settings;
  int x, y, width, height;

  settings = _gtk_file_chooser_settings_new ();
  _gtk_file_chooser_settings_get_geometry (settings, &x, &y, &width, &height);
  g_object_unref (settings);

  *out_xpos = x;
  *out_ypos = y;
}
#endif

static void
file_chooser_widget_default_size_changed (GtkWidget            *widget,
					  GtkFileChooserDialog *dialog)
{
  GtkFileChooserDialogPrivate *priv;
  gint default_width, default_height;
  GtkRequisition req, widget_req;

  priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (dialog);

  /* Unset any previously set size */
  gtk_widget_set_size_request (GTK_WIDGET (dialog), -1, -1);

  if (gtk_widget_is_drawable (widget))
    {
      /* Force a size request of everything before we start.  This will make sure
       * that widget->requisition is meaningful. */
      gtk_widget_get_preferred_size (GTK_WIDGET (dialog),
                                     &req, NULL);
      gtk_widget_get_preferred_size (widget,
                                     &widget_req, NULL);
    }

  _gtk_file_chooser_embed_get_default_size (GTK_FILE_CHOOSER_EMBED (priv->widget),
					    &default_width, &default_height);

  gtk_window_resize (GTK_WINDOW (dialog), default_width, default_height);

  if (!gtk_widget_get_mapped (GTK_WIDGET (dialog)))
    {
#if 0
      /* FIXME: the code to restore the position does not work yet.  It is not
       * clear whether it is actually desirable --- if enabled, applications
       * would not be able to say "center the file chooser on top of my toplevel
       * window".  So, we don't use this code at all.
       */
      load_position (&xpos, &ypos);
      if (xpos >= 0 && ypos >= 0)
	{
	  gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_NONE);
	  gtk_window_move (GTK_WINDOW (dialog), xpos, ypos);
	}
#endif
    }
}

static void
file_chooser_widget_response_requested (GtkWidget            *widget,
					GtkFileChooserDialog *dialog)
{
  GtkDialog *fc_dialog = GTK_DIALOG (dialog);
  GtkWidget *action_area;
  GList *children, *l;

  dialog->priv->response_requested = TRUE;

  if (gtk_window_activate_default (GTK_WINDOW (dialog)))
    return;

  /* There probably isn't a default widget, so make things easier for the
   * programmer by looking for a reasonable button on our own.
   */
  action_area = gtk_dialog_get_action_area (fc_dialog);
  children = gtk_container_get_children (GTK_CONTAINER (action_area));

  for (l = children; l; l = l->next)
    {
      GtkWidget *widget;
      int response_id;

      widget = GTK_WIDGET (l->data);
      response_id = gtk_dialog_get_response_for_widget (fc_dialog, widget);
      if (gtk_widget_is_sensitive (widget) &&
          is_stock_accept_response_id (response_id))
	{
	  gtk_widget_activate (widget); /* Should we gtk_dialog_response (dialog, response_id) instead? */
	  break;
	}
    }

  if (l == NULL)
    dialog->priv->response_requested = FALSE;

  g_list_free (children);
}
  
static GObject*
gtk_file_chooser_dialog_constructor (GType                  type,
				     guint                  n_construct_properties,
				     GObjectConstructParam *construct_params)
{
  GtkFileChooserDialogPrivate *priv;
  GtkWidget *content_area;
  GObject *object;

  object = G_OBJECT_CLASS (gtk_file_chooser_dialog_parent_class)->constructor (type,
									       n_construct_properties,
									       construct_params);
  priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (object);

  gtk_widget_push_composite_child ();

  if (priv->file_system)
    priv->widget = g_object_new (GTK_TYPE_FILE_CHOOSER_WIDGET,
				 NULL);
  else
    priv->widget = g_object_new (GTK_TYPE_FILE_CHOOSER_WIDGET, NULL);

  g_signal_connect (priv->widget, "file-activated",
		    G_CALLBACK (file_chooser_widget_file_activated), object);
  g_signal_connect (priv->widget, "default-size-changed",
		    G_CALLBACK (file_chooser_widget_default_size_changed), object);
  g_signal_connect (priv->widget, "response-requested",
		    G_CALLBACK (file_chooser_widget_response_requested), object);

  content_area = gtk_dialog_get_content_area (GTK_DIALOG (object));

  gtk_container_set_border_width (GTK_CONTAINER (priv->widget), 5);
  gtk_box_pack_start (GTK_BOX (content_area), priv->widget, TRUE, TRUE, 0);

  gtk_widget_show (priv->widget);

  _gtk_file_chooser_set_delegate (GTK_FILE_CHOOSER (object),
				  GTK_FILE_CHOOSER (priv->widget));

  gtk_widget_pop_composite_child ();

  return object;
}

static void
gtk_file_chooser_dialog_set_property (GObject         *object,
				      guint            prop_id,
				      const GValue    *value,
				      GParamSpec      *pspec)

{
  GtkFileChooserDialogPrivate *priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (object);

  switch (prop_id)
    {
    default:
      g_object_set_property (G_OBJECT (priv->widget), pspec->name, value);
      break;
    }
}

static void
gtk_file_chooser_dialog_get_property (GObject         *object,
				      guint            prop_id,
				      GValue          *value,
				      GParamSpec      *pspec)
{
  GtkFileChooserDialogPrivate *priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (object);

  g_object_get_property (G_OBJECT (priv->widget), pspec->name, value);
}

static void
foreach_ensure_default_response_cb (GtkWidget *widget,
				    gpointer   data)
{
  GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (data);
  int response_id;

  response_id = gtk_dialog_get_response_for_widget (GTK_DIALOG (dialog), widget);
  if (is_stock_accept_response_id (response_id))
    gtk_dialog_set_default_response (GTK_DIALOG (dialog), response_id);
}

static void
ensure_default_response (GtkFileChooserDialog *dialog)
{
  GtkWidget *action_area;

  action_area = gtk_dialog_get_action_area (GTK_DIALOG (dialog));
  gtk_container_foreach (GTK_CONTAINER (action_area),
			 foreach_ensure_default_response_cb,
			 dialog);
}

/* GtkWidget::map handler */
static void
gtk_file_chooser_dialog_map (GtkWidget *widget)
{
  GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget);
  GtkFileChooserDialogPrivate *priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (dialog);

  ensure_default_response (dialog);

  if (!gtk_widget_get_mapped (priv->widget))
    gtk_widget_map (priv->widget);

  _gtk_file_chooser_embed_initial_focus (GTK_FILE_CHOOSER_EMBED (priv->widget));

  GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->map (widget);
}

/* GtkWidget::unmap handler */
static void
gtk_file_chooser_dialog_unmap (GtkWidget *widget)
{
  GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget);
  GtkFileChooserDialogPrivate *priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (dialog);

  GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->unmap (widget);

  /* See bug #145470.  We unmap the GtkFileChooserWidget so that if the dialog
   * is remapped, the widget will be remapped as well.  Implementations should
   * refresh their contents when this happens, as some applications keep a
   * single file chooser alive and map/unmap it as needed, rather than creating
   * a new file chooser every time they need one.
   */
  gtk_widget_unmap (priv->widget);
}

/* GtkDialog::response handler */
static void
response_cb (GtkDialog *dialog,
	     gint       response_id)
{
  GtkFileChooserDialogPrivate *priv;

  priv = GTK_FILE_CHOOSER_DIALOG_GET_PRIVATE (dialog);

  /* Act only on response IDs we recognize */
  if (is_stock_accept_response_id (response_id)
      && !priv->response_requested
      && !_gtk_file_chooser_embed_should_respond (GTK_FILE_CHOOSER_EMBED (priv->widget)))
    {
      g_signal_stop_emission_by_name (dialog, "response");
    }

  priv->response_requested = FALSE;
}

static GtkWidget *
gtk_file_chooser_dialog_new_valist (const gchar          *title,
				    GtkWindow            *parent,
				    GtkFileChooserAction  action,
				    const gchar          *first_button_text,
				    va_list               varargs)
{
  GtkWidget *result;
  const char *button_text = first_button_text;
  gint response_id;

  result = g_object_new (GTK_TYPE_FILE_CHOOSER_DIALOG,
			 "title", title,
			 "action", action,
			 NULL);

  if (parent)
    gtk_window_set_transient_for (GTK_WINDOW (result), parent);

  while (button_text)
    {
      response_id = va_arg (varargs, gint);
      gtk_dialog_add_button (GTK_DIALOG (result), button_text, response_id);
      button_text = va_arg (varargs, const gchar *);
    }

  return result;
}

/**
 * gtk_file_chooser_dialog_new:
 * @title: (allow-none): Title of the dialog, or %NULL
 * @parent: (allow-none): Transient parent of the dialog, or %NULL
 * @action: Open or save mode for the dialog
 * @first_button_text: (allow-none): stock ID or text to go in the first button, or %NULL
 * @Varargs: response ID for the first button, then additional (button, id) pairs, ending with %NULL
 *
 * Creates a new #GtkFileChooserDialog.  This function is analogous to
 * gtk_dialog_new_with_buttons().
 *
 * Return value: a new #GtkFileChooserDialog
 *
 * Since: 2.4
 **/
GtkWidget *
gtk_file_chooser_dialog_new (const gchar         *title,
			     GtkWindow           *parent,
			     GtkFileChooserAction action,
			     const gchar         *first_button_text,
			     ...)
{
  GtkWidget *result;
  va_list varargs;
  
  va_start (varargs, first_button_text);
  result = gtk_file_chooser_dialog_new_valist (title, parent, action,
					       first_button_text,
					       varargs);
  va_end (varargs);

  return result;
}