1/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 2 -*- */
2/* GTK - The GIMP Toolkit
3 * Copyright (C) 2000 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19/*
20 * Modified by the GTK+ Team and others 1997-2003. See the AUTHORS
21 * file for a list of people on the GTK+ Team. See the ChangeLog
22 * files for a list of changes. These files are distributed with
23 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
24 */
25
26#include "config.h"
27
28#include "gtkmessagedialog.h"
29
30#include "gtkbox.h"
31#include "gtkbuildable.h"
32#include "gtkdialogprivate.h"
33#include "gtkintl.h"
34#include "gtklabel.h"
35#include "gtkprivate.h"
36#include "gtktypebuiltins.h"
37
38#include <string.h>
39
40/**
41 * GtkMessageDialog:
42 *
43 * `GtkMessageDialog` presents a dialog with some message text.
44 *
45 * ![An example GtkMessageDialog](messagedialog.png)
46 *
47 * It’s simply a convenience widget; you could construct the equivalent of
48 * `GtkMessageDialog` from `GtkDialog` without too much effort, but
49 * `GtkMessageDialog` saves typing.
50 *
51 * The easiest way to do a modal message dialog is to use the %GTK_DIALOG_MODAL
52 * flag, which will call [method@Gtk.Window.set_modal] internally. The dialog will
53 * prevent interaction with the parent window until it's hidden or destroyed.
54 * You can use the [signal@Gtk.Dialog::response] signal to know when the user
55 * dismissed the dialog.
56 *
57 * An example for using a modal dialog:
58 * ```c
59 * GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL;
60 * dialog = gtk_message_dialog_new (parent_window,
61 * flags,
62 * GTK_MESSAGE_ERROR,
63 * GTK_BUTTONS_CLOSE,
64 * "Error reading “%s”: %s",
65 * filename,
66 * g_strerror (errno));
67 * // Destroy the dialog when the user responds to it
68 * // (e.g. clicks a button)
69 *
70 * g_signal_connect (dialog, "response",
71 * G_CALLBACK (gtk_window_destroy),
72 * NULL);
73 * ```
74 *
75 * You might do a non-modal `GtkMessageDialog` simply by omitting the
76 * %GTK_DIALOG_MODAL flag:
77 *
78 * ```c
79 * GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT;
80 * dialog = gtk_message_dialog_new (parent_window,
81 * flags,
82 * GTK_MESSAGE_ERROR,
83 * GTK_BUTTONS_CLOSE,
84 * "Error reading “%s”: %s",
85 * filename,
86 * g_strerror (errno));
87 *
88 * // Destroy the dialog when the user responds to it
89 * // (e.g. clicks a button)
90 * g_signal_connect (dialog, "response",
91 * G_CALLBACK (gtk_window_destroy),
92 * NULL);
93 * ```
94 *
95 * # GtkMessageDialog as GtkBuildable
96 *
97 * The `GtkMessageDialog` implementation of the `GtkBuildable` interface exposes
98 * the message area as an internal child with the name “message_area”.
99 */
100
101typedef struct
102{
103 GtkWidget *label;
104 GtkWidget *message_area; /* vbox for the primary and secondary labels, and any extra content from the caller */
105 GtkWidget *secondary_label;
106
107 guint has_primary_markup : 1;
108 guint has_secondary_text : 1;
109 guint message_type : 3;
110} GtkMessageDialogPrivate;
111
112struct _GtkMessageDialogClass
113{
114 GtkDialogClass parent_class;
115};
116
117enum {
118 PROP_0,
119 PROP_MESSAGE_TYPE,
120 PROP_BUTTONS,
121 PROP_TEXT,
122 PROP_USE_MARKUP,
123 PROP_SECONDARY_TEXT,
124 PROP_SECONDARY_USE_MARKUP,
125 PROP_IMAGE,
126 PROP_MESSAGE_AREA
127};
128
129G_DEFINE_TYPE_WITH_PRIVATE (GtkMessageDialog, gtk_message_dialog, GTK_TYPE_DIALOG)
130
131static void
132setup_type (GtkMessageDialog *dialog,
133 GtkMessageType type)
134{
135 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: dialog);
136
137 if (priv->message_type == type)
138 return;
139
140 priv->message_type = type;
141
142 g_object_notify (G_OBJECT (dialog), property_name: "message-type");
143}
144
145static void
146gtk_message_dialog_add_buttons (GtkMessageDialog *message_dialog,
147 GtkButtonsType buttons)
148{
149 GtkDialog* dialog = GTK_DIALOG (message_dialog);
150
151 switch (buttons)
152 {
153 case GTK_BUTTONS_NONE:
154 /* nothing */
155 break;
156
157 case GTK_BUTTONS_OK:
158 gtk_dialog_add_button (dialog, _("_OK"), response_id: GTK_RESPONSE_OK);
159 break;
160
161 case GTK_BUTTONS_CLOSE:
162 gtk_dialog_add_button (dialog, _("_Close"), response_id: GTK_RESPONSE_CLOSE);
163 break;
164
165 case GTK_BUTTONS_CANCEL:
166 gtk_dialog_add_button (dialog, _("_Cancel"), response_id: GTK_RESPONSE_CANCEL);
167 break;
168
169 case GTK_BUTTONS_YES_NO:
170 gtk_dialog_add_button (dialog, _("_No"), response_id: GTK_RESPONSE_NO);
171 gtk_dialog_add_button (dialog, _("_Yes"), response_id: GTK_RESPONSE_YES);
172 break;
173
174 case GTK_BUTTONS_OK_CANCEL:
175 gtk_dialog_add_button (dialog, _("_Cancel"), response_id: GTK_RESPONSE_CANCEL);
176 gtk_dialog_add_button (dialog, _("_OK"), response_id: GTK_RESPONSE_OK);
177 break;
178
179 default:
180 g_warning ("Unknown GtkButtonsType");
181 break;
182 }
183
184 g_object_notify (G_OBJECT (message_dialog), property_name: "buttons");
185}
186
187static void
188gtk_message_dialog_set_property (GObject *object,
189 guint prop_id,
190 const GValue *value,
191 GParamSpec *pspec)
192{
193 GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
194 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: dialog);
195
196 switch (prop_id)
197 {
198 case PROP_MESSAGE_TYPE:
199 setup_type (dialog, type: g_value_get_enum (value));
200 break;
201 case PROP_BUTTONS:
202 gtk_message_dialog_add_buttons (message_dialog: dialog, buttons: g_value_get_enum (value));
203 break;
204 case PROP_TEXT:
205 if (priv->has_primary_markup)
206 gtk_label_set_markup (GTK_LABEL (priv->label), str: g_value_get_string (value));
207 else
208 gtk_label_set_text (GTK_LABEL (priv->label), str: g_value_get_string (value));
209 break;
210 case PROP_USE_MARKUP:
211 if (priv->has_primary_markup != g_value_get_boolean (value))
212 {
213 priv->has_primary_markup = g_value_get_boolean (value);
214 gtk_label_set_use_markup (GTK_LABEL (priv->label), setting: priv->has_primary_markup);
215 g_object_notify_by_pspec (object, pspec);
216 }
217 break;
218 case PROP_SECONDARY_TEXT:
219 {
220 const char *txt = g_value_get_string (value);
221
222 if (gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)))
223 gtk_label_set_markup (GTK_LABEL (priv->secondary_label), str: txt);
224 else
225 gtk_label_set_text (GTK_LABEL (priv->secondary_label), str: txt);
226
227 if (txt)
228 {
229 priv->has_secondary_text = TRUE;
230 gtk_widget_add_css_class (widget: priv->label, css_class: "title");
231 gtk_widget_show (widget: priv->secondary_label);
232 }
233 else
234 {
235 priv->has_secondary_text = FALSE;
236 gtk_widget_remove_css_class (widget: priv->label, css_class: "title");
237 gtk_widget_hide (widget: priv->secondary_label);
238 }
239 }
240 break;
241 case PROP_SECONDARY_USE_MARKUP:
242 if (gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)) != g_value_get_boolean (value))
243 {
244 gtk_label_set_use_markup (GTK_LABEL (priv->secondary_label), setting: g_value_get_boolean (value));
245 g_object_notify_by_pspec (object, pspec);
246 }
247 break;
248
249 default:
250 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
251 break;
252 }
253}
254
255static void
256gtk_message_dialog_get_property (GObject *object,
257 guint prop_id,
258 GValue *value,
259 GParamSpec *pspec)
260{
261 GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
262 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: dialog);
263
264 switch (prop_id)
265 {
266 case PROP_MESSAGE_TYPE:
267 g_value_set_enum (value, v_enum: (GtkMessageType) priv->message_type);
268 break;
269 case PROP_TEXT:
270 g_value_set_string (value, v_string: gtk_label_get_label (GTK_LABEL (priv->label)));
271 break;
272 case PROP_USE_MARKUP:
273 g_value_set_boolean (value, v_boolean: priv->has_primary_markup);
274 break;
275 case PROP_SECONDARY_TEXT:
276 if (priv->has_secondary_text)
277 g_value_set_string (value,
278 v_string: gtk_label_get_label (GTK_LABEL (priv->secondary_label)));
279 else
280 g_value_set_string (value, NULL);
281 break;
282 case PROP_SECONDARY_USE_MARKUP:
283 if (priv->has_secondary_text)
284 g_value_set_boolean (value,
285 v_boolean: gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)));
286 else
287 g_value_set_boolean (value, FALSE);
288 break;
289 case PROP_MESSAGE_AREA:
290 g_value_set_object (value, v_object: priv->message_area);
291 break;
292 default:
293 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
294 break;
295 }
296}
297
298static void
299update_title (GObject *dialog,
300 GParamSpec *pspec,
301 GtkWidget *label)
302{
303 const char *title;
304
305 title = gtk_window_get_title (GTK_WINDOW (dialog));
306 gtk_label_set_label (GTK_LABEL (label), str: title);
307 gtk_widget_set_visible (widget: label, visible: title && title[0]);
308}
309
310static void
311gtk_message_dialog_constructed (GObject *object)
312{
313 GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
314 gboolean use_header;
315
316 G_OBJECT_CLASS (gtk_message_dialog_parent_class)->constructed (object);
317
318 g_object_get (object: gtk_widget_get_settings (GTK_WIDGET (dialog)),
319 first_property_name: "gtk-dialogs-use-header", &use_header,
320 NULL);
321
322 if (use_header)
323 {
324 GtkWidget *box;
325 GtkWidget *label;
326
327 box = gtk_box_new (orientation: GTK_ORIENTATION_HORIZONTAL, spacing: 0);
328 gtk_widget_show (widget: box);
329 gtk_widget_set_size_request (widget: box, width: -1, height: 16);
330 label = gtk_label_new (str: "");
331 gtk_widget_hide (widget: label);
332 gtk_widget_set_margin_top (widget: label, margin: 6);
333 gtk_widget_set_margin_bottom (widget: label, margin: 6);
334 gtk_widget_set_halign (widget: label, align: GTK_ALIGN_CENTER);
335 gtk_widget_set_hexpand (widget: label, TRUE);
336 gtk_widget_add_css_class (widget: label, css_class: "title");
337 gtk_box_append (GTK_BOX (box), child: label);
338 g_signal_connect_object (instance: dialog, detailed_signal: "notify::title", G_CALLBACK (update_title), gobject: label, connect_flags: 0);
339
340 gtk_window_set_titlebar (GTK_WINDOW (dialog), titlebar: box);
341 }
342}
343
344static void
345gtk_message_dialog_class_init (GtkMessageDialogClass *class)
346{
347 GtkWidgetClass *widget_class;
348 GObjectClass *gobject_class;
349
350 widget_class = GTK_WIDGET_CLASS (class);
351 gobject_class = G_OBJECT_CLASS (class);
352
353 gobject_class->constructed = gtk_message_dialog_constructed;
354 gobject_class->set_property = gtk_message_dialog_set_property;
355 gobject_class->get_property = gtk_message_dialog_get_property;
356
357 /**
358 * GtkMessageDialog:message-type:
359 *
360 * The type of the message.
361 */
362 g_object_class_install_property (oclass: gobject_class,
363 property_id: PROP_MESSAGE_TYPE,
364 pspec: g_param_spec_enum (name: "message-type",
365 P_("Message Type"),
366 P_("The type of message"),
367 enum_type: GTK_TYPE_MESSAGE_TYPE,
368 default_value: GTK_MESSAGE_INFO,
369 GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_EXPLICIT_NOTIFY));
370 g_object_class_install_property (oclass: gobject_class,
371 property_id: PROP_BUTTONS,
372 pspec: g_param_spec_enum (name: "buttons",
373 P_("Message Buttons"),
374 P_("The buttons shown in the message dialog"),
375 enum_type: GTK_TYPE_BUTTONS_TYPE,
376 default_value: GTK_BUTTONS_NONE,
377 GTK_PARAM_WRITABLE|G_PARAM_CONSTRUCT_ONLY));
378 /**
379 * GtkMessageDialog:text:
380 *
381 * The primary text of the message dialog.
382 *
383 * If the dialog has a secondary text, this will appear as the title.
384 */
385 g_object_class_install_property (oclass: gobject_class,
386 property_id: PROP_TEXT,
387 pspec: g_param_spec_string (name: "text",
388 P_("Text"),
389 P_("The primary text of the message dialog"),
390 default_value: "",
391 GTK_PARAM_READWRITE));
392 /**
393 * GtkMessageDialog:use-markup:
394 *
395 * %TRUE if the primary text of the dialog includes Pango markup.
396 *
397 * See [func@Pango.parse_markup].
398 */
399 g_object_class_install_property (oclass: gobject_class,
400 property_id: PROP_USE_MARKUP,
401 pspec: g_param_spec_boolean (name: "use-markup",
402 P_("Use Markup"),
403 P_("The primary text of the title includes Pango markup."),
404 FALSE,
405 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
406 /**
407 * GtkMessageDialog:secondary-text:
408 *
409 * The secondary text of the message dialog.
410 */
411 g_object_class_install_property (oclass: gobject_class,
412 property_id: PROP_SECONDARY_TEXT,
413 pspec: g_param_spec_string (name: "secondary-text",
414 P_("Secondary Text"),
415 P_("The secondary text of the message dialog"),
416 NULL,
417 GTK_PARAM_READWRITE));
418 /**
419 * GtkMessageDialog:secondary-use-markup:
420 *
421 * %TRUE if the secondary text of the dialog includes Pango markup.
422 *
423 * See [func@Pango.parse_markup].
424 */
425 g_object_class_install_property (oclass: gobject_class,
426 property_id: PROP_SECONDARY_USE_MARKUP,
427 pspec: g_param_spec_boolean (name: "secondary-use-markup",
428 P_("Use Markup in secondary"),
429 P_("The secondary text includes Pango markup."),
430 FALSE,
431 GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
432 /**
433 * GtkMessageDialog:message-area:
434 *
435 * The `GtkBox` that corresponds to the message area of this dialog.
436 *
437 * See [method@Gtk.MessageDialog.get_message_area] for a detailed
438 * description of this area.
439 */
440 g_object_class_install_property (oclass: gobject_class,
441 property_id: PROP_MESSAGE_AREA,
442 pspec: g_param_spec_object (name: "message-area",
443 P_("Message area"),
444 P_("GtkBox that holds the dialog’s primary and secondary labels"),
445 GTK_TYPE_WIDGET,
446 GTK_PARAM_READABLE));
447
448 gtk_widget_class_set_template_from_resource (widget_class, resource_name: "/org/gtk/libgtk/ui/gtkmessagedialog.ui");
449 gtk_widget_class_bind_template_child_private (widget_class, GtkMessageDialog, label);
450 gtk_widget_class_bind_template_child_private (widget_class, GtkMessageDialog, secondary_label);
451 gtk_widget_class_bind_template_child_internal_private (widget_class, GtkMessageDialog, message_area);
452}
453
454static void
455gtk_message_dialog_init (GtkMessageDialog *dialog)
456{
457 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: dialog);
458 GtkWidget *action_area;
459 GtkSettings *settings;
460 gboolean use_caret;
461
462 priv->has_primary_markup = FALSE;
463 priv->has_secondary_text = FALSE;
464 priv->message_type = GTK_MESSAGE_OTHER;
465
466 gtk_widget_add_css_class (GTK_WIDGET (dialog), css_class: "message");
467
468 gtk_widget_init_template (GTK_WIDGET (dialog));
469 action_area = gtk_dialog_get_action_area (GTK_DIALOG (dialog));
470 gtk_widget_set_halign (widget: action_area, align: GTK_ALIGN_FILL);
471 gtk_box_set_homogeneous (GTK_BOX (action_area), TRUE);
472
473 settings = gtk_widget_get_settings (GTK_WIDGET (dialog));
474 g_object_get (object: settings, first_property_name: "gtk-keynav-use-caret", &use_caret, NULL);
475 gtk_label_set_selectable (GTK_LABEL (priv->label), setting: use_caret);
476 gtk_label_set_selectable (GTK_LABEL (priv->secondary_label), setting: use_caret);
477}
478
479/**
480 * gtk_message_dialog_new:
481 * @parent: (nullable): transient parent
482 * @flags: flags
483 * @type: type of message
484 * @buttons: set of buttons to use
485 * @message_format: (nullable): printf()-style format string
486 * @...: arguments for @message_format
487 *
488 * Creates a new message dialog.
489 *
490 * This is a simple dialog with some text the user may want to see.
491 * When the user clicks a button a “response” signal is emitted with
492 * response IDs from [enum@Gtk.ResponseType]. See [class@Gtk.Dialog]
493 * for more details.
494 *
495 * Returns: (transfer none): a new `GtkMessageDialog`
496 */
497GtkWidget*
498gtk_message_dialog_new (GtkWindow *parent,
499 GtkDialogFlags flags,
500 GtkMessageType type,
501 GtkButtonsType buttons,
502 const char *message_format,
503 ...)
504{
505 GtkWidget *widget;
506 GtkDialog *dialog;
507 char * msg = NULL;
508 va_list args;
509
510 g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
511
512 widget = g_object_new (GTK_TYPE_MESSAGE_DIALOG,
513 first_property_name: "use-header-bar", FALSE,
514 "message-type", type,
515 "buttons", buttons,
516 NULL);
517 dialog = GTK_DIALOG (widget);
518
519 if (message_format)
520 {
521 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: (GtkMessageDialog*)dialog);
522 va_start (args, message_format);
523 msg = g_strdup_vprintf (format: message_format, args);
524 va_end (args);
525
526 gtk_label_set_text (GTK_LABEL (priv->label), str: msg);
527
528 g_free (mem: msg);
529 }
530
531 if (parent != NULL)
532 gtk_window_set_transient_for (GTK_WINDOW (widget), GTK_WINDOW (parent));
533
534 if (flags & GTK_DIALOG_MODAL)
535 gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
536
537 if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
538 gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
539
540 return widget;
541}
542
543/**
544 * gtk_message_dialog_new_with_markup:
545 * @parent: (nullable): transient parent
546 * @flags: flags
547 * @type: type of message
548 * @buttons: set of buttons to use
549 * @message_format: (nullable): printf()-style format string
550 * @...: arguments for @message_format
551 *
552 * Creates a new message dialog.
553 *
554 * This is a simple dialog with some text that is marked up with
555 * Pango markup. When the user clicks a button a “response” signal
556 * is emitted with response IDs from [enum@Gtk.ResponseType]. See
557 * [class@Gtk.Dialog] for more details.
558 *
559 * Special XML characters in the printf() arguments passed to this
560 * function will automatically be escaped as necessary.
561 * (See g_markup_printf_escaped() for how this is implemented.)
562 * Usually this is what you want, but if you have an existing
563 * Pango markup string that you want to use literally as the
564 * label, then you need to use [method@Gtk.MessageDialog.set_markup]
565 * instead, since you can’t pass the markup string either
566 * as the format (it might contain “%” characters) or as a string
567 * argument.
568 *
569 * ```c
570 * GtkWidget *dialog;
571 * GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT;
572 * dialog = gtk_message_dialog_new (parent_window,
573 * flags,
574 * GTK_MESSAGE_ERROR,
575 * GTK_BUTTONS_CLOSE,
576 * NULL);
577 * gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (dialog),
578 * markup);
579 * ```
580 *
581 * Returns: a new `GtkMessageDialog`
582 **/
583GtkWidget*
584gtk_message_dialog_new_with_markup (GtkWindow *parent,
585 GtkDialogFlags flags,
586 GtkMessageType type,
587 GtkButtonsType buttons,
588 const char *message_format,
589 ...)
590{
591 GtkWidget *widget;
592 va_list args;
593 char *msg = NULL;
594
595 g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
596
597 widget = gtk_message_dialog_new (parent, flags, type, buttons, NULL);
598
599 if (message_format)
600 {
601 va_start (args, message_format);
602 msg = g_markup_vprintf_escaped (format: message_format, args);
603 va_end (args);
604
605 gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (widget), str: msg);
606
607 g_free (mem: msg);
608 }
609
610 return widget;
611}
612
613/**
614 * gtk_message_dialog_set_markup:
615 * @message_dialog: a `GtkMessageDialog`
616 * @str: string with Pango markup
617 *
618 * Sets the text of the message dialog.
619 */
620void
621gtk_message_dialog_set_markup (GtkMessageDialog *message_dialog,
622 const char *str)
623{
624 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: message_dialog);
625
626 g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
627
628 priv->has_primary_markup = TRUE;
629 gtk_label_set_markup (GTK_LABEL (priv->label), str);
630}
631
632/**
633 * gtk_message_dialog_format_secondary_text:
634 * @message_dialog: a `GtkMessageDialog`
635 * @message_format: (nullable): printf()-style format string
636 * @...: arguments for @message_format
637 *
638 * Sets the secondary text of the message dialog.
639 */
640void
641gtk_message_dialog_format_secondary_text (GtkMessageDialog *message_dialog,
642 const char *message_format,
643 ...)
644{
645 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: message_dialog);
646 va_list args;
647 char *msg = NULL;
648
649 g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
650
651 if (message_format)
652 {
653 priv->has_secondary_text = TRUE;
654 gtk_widget_add_css_class (widget: priv->label, css_class: "title");
655
656 va_start (args, message_format);
657 msg = g_strdup_vprintf (format: message_format, args);
658 va_end (args);
659
660 gtk_widget_show (widget: priv->secondary_label);
661 gtk_label_set_text (GTK_LABEL (priv->secondary_label), str: msg);
662
663 g_free (mem: msg);
664 }
665 else
666 {
667 priv->has_secondary_text = FALSE;
668 gtk_widget_remove_css_class (widget: priv->label, css_class: "title");
669 gtk_widget_hide (widget: priv->secondary_label);
670 }
671}
672
673/**
674 * gtk_message_dialog_format_secondary_markup:
675 * @message_dialog: a `GtkMessageDialog`
676 * @message_format: printf()-style string with Pango markup
677 * @...: arguments for @message_format
678 *
679 * Sets the secondary text of the message dialog.
680 *
681 * The @message_format is assumed to contain Pango markup.
682 *
683 * Due to an oversight, this function does not escape special
684 * XML characters like [ctor@Gtk.MessageDialog.new_with_markup]
685 * does. Thus, if the arguments may contain special XML characters,
686 * you should use g_markup_printf_escaped() to escape it.
687 *
688 * ```c
689 * char *msg;
690 *
691 * msg = g_markup_printf_escaped (message_format, ...);
692 * gtk_message_dialog_format_secondary_markup (message_dialog,
693 * "%s", msg);
694 * g_free (msg);
695 * ```
696 */
697void
698gtk_message_dialog_format_secondary_markup (GtkMessageDialog *message_dialog,
699 const char *message_format,
700 ...)
701{
702 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: message_dialog);
703 va_list args;
704 char *msg = NULL;
705
706 g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
707
708 if (message_format)
709 {
710 priv->has_secondary_text = TRUE;
711 gtk_widget_add_css_class (widget: priv->label, css_class: "title");
712
713 va_start (args, message_format);
714 msg = g_strdup_vprintf (format: message_format, args);
715 va_end (args);
716
717 gtk_widget_show (widget: priv->secondary_label);
718 gtk_label_set_markup (GTK_LABEL (priv->secondary_label), str: msg);
719
720 g_free (mem: msg);
721 }
722 else
723 {
724 priv->has_secondary_text = FALSE;
725 gtk_widget_remove_css_class (widget: priv->label, css_class: "title");
726 gtk_widget_hide (widget: priv->secondary_label);
727 }
728}
729
730/**
731 * gtk_message_dialog_get_message_area:
732 * @message_dialog: a `GtkMessageDialog`
733 *
734 * Returns the message area of the dialog.
735 *
736 * This is the box where the dialog’s primary and secondary labels
737 * are packed. You can add your own extra content to that box and it
738 * will appear below those labels. See [method@Gtk.Dialog.get_content_area]
739 * for the corresponding function in the parent [class@Gtk.Dialog].
740 *
741 * Returns: (transfer none): A `GtkBox` corresponding to the
742 * “message area” in the @message_dialog
743 */
744GtkWidget *
745gtk_message_dialog_get_message_area (GtkMessageDialog *message_dialog)
746{
747 GtkMessageDialogPrivate *priv = gtk_message_dialog_get_instance_private (self: message_dialog);
748
749 g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog), NULL);
750
751 return priv->message_area;
752}
753

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source code of gtk/gtk/gtkmessagedialog.c