610 lines
17 KiB
C
610 lines
17 KiB
C
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/* GTK - The GIMP Toolkit
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* Copyright (C) 2010 Red Hat, Inc.
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* Author: Matthias Clasen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtklockbuttonprivate.h"
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#include "gtkbox.h"
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#include "gtkimage.h"
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#include <glib/gi18n-lib.h>
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#include "gtklabel.h"
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#include "gtksizegroup.h"
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#include "gtkstack.h"
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#include "gtkprivate.h"
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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/**
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* GtkLockButton:
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*
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* `GtkLockButton` is a widget to obtain and revoke authorizations
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* needed to operate the controls.
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*
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* 
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*
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* It is typically used in preference dialogs or control panels.
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*
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* The required authorization is represented by a `GPermission` object.
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* Concrete implementations of `GPermission` may use PolicyKit or some
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* other authorization framework. To obtain a PolicyKit-based
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* `GPermission`, use `polkit_permission_new()`.
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*
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* If the user is not currently allowed to perform the action, but can
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* obtain the permission, the widget looks like this:
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*
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* 
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*
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* and the user can click the button to request the permission. Depending
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* on the platform, this may pop up an authentication dialog or ask the user
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* to authenticate in some other way. Once the user has obtained the permission,
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* the widget changes to this:
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*
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* 
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*
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* and the permission can be dropped again by clicking the button. If the user
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* is not able to obtain the permission at all, the widget looks like this:
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*
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* 
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*
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* If the user has the permission and cannot drop it, the button is hidden.
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*
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* The text (and tooltips) that are shown in the various cases can be adjusted
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* with the [property@Gtk.LockButton:text-lock],
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* [property@Gtk.LockButton:text-unlock],
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* [property@Gtk.LockButton:tooltip-lock],
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* [property@Gtk.LockButton:tooltip-unlock] and
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* [property@Gtk.LockButton:tooltip-not-authorized] properties.
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*
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* Deprecated: 4.10: This widget will be removed in GTK 5
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*/
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struct _GtkLockButton
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{
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GtkButton parent_instance;
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GPermission *permission;
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GCancellable *cancellable;
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char *tooltip_lock;
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char *tooltip_unlock;
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char *tooltip_not_authorized;
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GIcon *icon_lock;
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GIcon *icon_unlock;
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GtkWidget *box;
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GtkWidget *image;
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GtkWidget *stack;
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GtkWidget *label_lock;
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GtkWidget *label_unlock;
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};
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typedef struct _GtkLockButtonClass GtkLockButtonClass;
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struct _GtkLockButtonClass
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{
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GtkButtonClass parent_class;
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};
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enum
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{
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PROP_0,
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PROP_PERMISSION,
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PROP_TEXT_LOCK,
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PROP_TEXT_UNLOCK,
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PROP_TOOLTIP_LOCK,
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PROP_TOOLTIP_UNLOCK,
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PROP_TOOLTIP_NOT_AUTHORIZED
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};
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static void update_state (GtkLockButton *button);
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static void gtk_lock_button_clicked (GtkButton *button);
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static void on_permission_changed (GPermission *permission,
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GParamSpec *pspec,
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gpointer user_data);
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G_DEFINE_TYPE (GtkLockButton, gtk_lock_button, GTK_TYPE_BUTTON)
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static void
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gtk_lock_button_finalize (GObject *object)
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{
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GtkLockButton *button = GTK_LOCK_BUTTON (object);
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g_free (button->tooltip_lock);
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g_free (button->tooltip_unlock);
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g_free (button->tooltip_not_authorized);
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g_object_unref (button->icon_lock);
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g_object_unref (button->icon_unlock);
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if (button->cancellable != NULL)
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{
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g_cancellable_cancel (button->cancellable);
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g_object_unref (button->cancellable);
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}
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if (button->permission)
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{
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g_signal_handlers_disconnect_by_func (button->permission,
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on_permission_changed,
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button);
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g_object_unref (button->permission);
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}
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G_OBJECT_CLASS (gtk_lock_button_parent_class)->finalize (object);
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}
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static void
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gtk_lock_button_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkLockButton *button = GTK_LOCK_BUTTON (object);
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switch (property_id)
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{
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case PROP_PERMISSION:
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g_value_set_object (value, button->permission);
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break;
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case PROP_TEXT_LOCK:
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g_value_set_string (value, gtk_label_get_text (GTK_LABEL (button->label_lock)));
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break;
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case PROP_TEXT_UNLOCK:
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g_value_set_string (value, gtk_label_get_text (GTK_LABEL (button->label_unlock)));
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break;
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case PROP_TOOLTIP_LOCK:
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g_value_set_string (value, button->tooltip_lock);
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break;
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case PROP_TOOLTIP_UNLOCK:
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g_value_set_string (value, button->tooltip_unlock);
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break;
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case PROP_TOOLTIP_NOT_AUTHORIZED:
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g_value_set_string (value, button->tooltip_not_authorized);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gtk_lock_button_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkLockButton *button = GTK_LOCK_BUTTON (object);
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switch (property_id)
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{
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case PROP_PERMISSION:
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gtk_lock_button_set_permission (button, g_value_get_object (value));
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break;
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case PROP_TEXT_LOCK:
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gtk_label_set_text (GTK_LABEL (button->label_lock), g_value_get_string (value));
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break;
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case PROP_TEXT_UNLOCK:
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gtk_label_set_text (GTK_LABEL (button->label_unlock), g_value_get_string (value));
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break;
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case PROP_TOOLTIP_LOCK:
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g_free (button->tooltip_lock);
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button->tooltip_lock = g_value_dup_string (value);
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break;
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case PROP_TOOLTIP_UNLOCK:
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g_free (button->tooltip_unlock);
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button->tooltip_unlock = g_value_dup_string (value);
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break;
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case PROP_TOOLTIP_NOT_AUTHORIZED:
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g_free (button->tooltip_not_authorized);
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button->tooltip_not_authorized = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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update_state (button);
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}
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static void
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gtk_lock_button_init (GtkLockButton *button)
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{
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const char *names[3];
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gtk_widget_init_template (GTK_WIDGET (button));
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names[0] = "changes-allow-symbolic";
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names[1] = "changes-allow";
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names[2] = NULL;
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button->icon_unlock = g_themed_icon_new_from_names ((char **) names, -1);
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names[0] = "changes-prevent-symbolic";
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names[1] = "changes-prevent";
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names[2] = NULL;
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button->icon_lock = g_themed_icon_new_from_names ((char **) names, -1);
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update_state (button);
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gtk_widget_add_css_class (GTK_WIDGET (button), I_("lock"));
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}
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static void
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gtk_lock_button_class_init (GtkLockButtonClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GtkButtonClass *button_class = GTK_BUTTON_CLASS (klass);
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gobject_class->finalize = gtk_lock_button_finalize;
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gobject_class->get_property = gtk_lock_button_get_property;
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gobject_class->set_property = gtk_lock_button_set_property;
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button_class->clicked = gtk_lock_button_clicked;
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/**
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* GtkLockButton:permission: (attributes org.gtk.Property.get=gtk_lock_button_get_permission org.gtk.Property.set=gtk_lock_button_set_permission)
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*
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* The `GPermission object controlling this button.
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*
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* Deprecated: 4.10: This widget will be removed in GTK 5
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*/
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g_object_class_install_property (gobject_class, PROP_PERMISSION,
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g_param_spec_object ("permission", NULL, NULL,
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G_TYPE_PERMISSION,
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G_PARAM_READWRITE |
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G_PARAM_STATIC_STRINGS));
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/**
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* GtkLockButton:text-lock:
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*
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* The text to display when prompting the user to lock.
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*
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* Deprecated: 4.10: This widget will be removed in GTK 5
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*/
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g_object_class_install_property (gobject_class, PROP_TEXT_LOCK,
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g_param_spec_string ("text-lock", NULL, NULL,
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_("Lock"),
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT |
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G_PARAM_STATIC_STRINGS));
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/**
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* GtkLockButton:text-unlock:
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*
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* The text to display when prompting the user to unlock.
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*
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* Deprecated: 4.10: This widget will be removed in GTK 5
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*/
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g_object_class_install_property (gobject_class, PROP_TEXT_UNLOCK,
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g_param_spec_string ("text-unlock", NULL, NULL,
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_("Unlock"),
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT |
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G_PARAM_STATIC_STRINGS));
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/**
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* GtkLockButton:tooltip-lock:
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*
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* The tooltip to display when prompting the user to lock.
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*
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* Deprecated: 4.10: This widget will be removed in GTK 5
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*/
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g_object_class_install_property (gobject_class, PROP_TOOLTIP_LOCK,
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g_param_spec_string ("tooltip-lock", NULL, NULL,
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_("Dialog is unlocked.\nClick to prevent further changes"),
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT |
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G_PARAM_STATIC_STRINGS));
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/**
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* GtkLockButton:tooltip-unlock:
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*
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* The tooltip to display when prompting the user to unlock.
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*
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* Deprecated: 4.10: This widget will be removed in GTK 5
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*/
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g_object_class_install_property (gobject_class, PROP_TOOLTIP_UNLOCK,
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g_param_spec_string ("tooltip-unlock", NULL, NULL,
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_("Dialog is locked.\nClick to make changes"),
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT |
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G_PARAM_STATIC_STRINGS));
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/**
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* GtkLockButton:tooltip-not-authorized:
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*
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* The tooltip to display when the user cannot obtain authorization.
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*
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* Deprecated: 4.10: This widget will be removed in GTK 5
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*/
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g_object_class_install_property (gobject_class, PROP_TOOLTIP_NOT_AUTHORIZED,
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g_param_spec_string ("tooltip-not-authorized", NULL, NULL,
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_("System policy prevents changes.\nContact your system administrator"),
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT |
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G_PARAM_STATIC_STRINGS));
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/* Bind class to template
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*/
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gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtklockbutton.ui");
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gtk_widget_class_bind_template_child (widget_class, GtkLockButton, box);
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gtk_widget_class_bind_template_child (widget_class, GtkLockButton, image);
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gtk_widget_class_bind_template_child (widget_class, GtkLockButton, label_lock);
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gtk_widget_class_bind_template_child (widget_class, GtkLockButton, label_unlock);
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gtk_widget_class_bind_template_child (widget_class, GtkLockButton, stack);
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gtk_widget_class_set_css_name (widget_class, I_("button"));
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}
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static void
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update_state (GtkLockButton *button)
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{
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gboolean allowed;
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gboolean can_acquire;
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gboolean can_release;
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gboolean sensitive;
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gboolean visible;
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GIcon *icon;
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const char *tooltip;
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||
|
|
if (button->permission)
|
||
|
|
{
|
||
|
|
allowed = g_permission_get_allowed (button->permission);
|
||
|
|
can_acquire = g_permission_get_can_acquire (button->permission);
|
||
|
|
can_release = g_permission_get_can_release (button->permission);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
allowed = TRUE;
|
||
|
|
can_acquire = FALSE;
|
||
|
|
can_release = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (allowed && can_release)
|
||
|
|
{
|
||
|
|
visible = TRUE;
|
||
|
|
sensitive = TRUE;
|
||
|
|
icon = button->icon_lock;
|
||
|
|
tooltip = button->tooltip_lock;
|
||
|
|
}
|
||
|
|
else if (allowed && !can_release)
|
||
|
|
{
|
||
|
|
visible = FALSE;
|
||
|
|
sensitive = TRUE;
|
||
|
|
icon = button->icon_lock;
|
||
|
|
tooltip = button->tooltip_lock;
|
||
|
|
}
|
||
|
|
else if (!allowed && can_acquire)
|
||
|
|
{
|
||
|
|
visible = TRUE;
|
||
|
|
sensitive = TRUE;
|
||
|
|
icon = button->icon_unlock;
|
||
|
|
tooltip = button->tooltip_unlock;
|
||
|
|
}
|
||
|
|
else if (!allowed && !can_acquire)
|
||
|
|
{
|
||
|
|
visible = TRUE;
|
||
|
|
sensitive = FALSE;
|
||
|
|
icon = button->icon_unlock;
|
||
|
|
tooltip = button->tooltip_not_authorized;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
g_assert_not_reached ();
|
||
|
|
}
|
||
|
|
|
||
|
|
gtk_image_set_from_gicon (GTK_IMAGE (button->image), icon);
|
||
|
|
gtk_stack_set_visible_child (GTK_STACK (button->stack),
|
||
|
|
allowed ? button->label_lock : button->label_unlock);
|
||
|
|
gtk_widget_set_tooltip_markup (GTK_WIDGET (button), tooltip);
|
||
|
|
gtk_widget_set_sensitive (GTK_WIDGET (button), sensitive);
|
||
|
|
gtk_widget_set_visible (GTK_WIDGET (button), visible);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
on_permission_changed (GPermission *permission,
|
||
|
|
GParamSpec *pspec,
|
||
|
|
gpointer user_data)
|
||
|
|
{
|
||
|
|
GtkLockButton *button = GTK_LOCK_BUTTON (user_data);
|
||
|
|
|
||
|
|
update_state (button);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
acquire_cb (GObject *source,
|
||
|
|
GAsyncResult *result,
|
||
|
|
gpointer user_data)
|
||
|
|
{
|
||
|
|
GtkLockButton *button = GTK_LOCK_BUTTON (user_data);
|
||
|
|
GError *error;
|
||
|
|
|
||
|
|
error = NULL;
|
||
|
|
if (!g_permission_acquire_finish (button->permission, result, &error))
|
||
|
|
{
|
||
|
|
g_warning ("Error acquiring permission: %s", error->message);
|
||
|
|
g_error_free (error);
|
||
|
|
}
|
||
|
|
|
||
|
|
g_object_unref (button->cancellable);
|
||
|
|
button->cancellable = NULL;
|
||
|
|
|
||
|
|
update_state (button);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
release_cb (GObject *source,
|
||
|
|
GAsyncResult *result,
|
||
|
|
gpointer user_data)
|
||
|
|
{
|
||
|
|
GtkLockButton *button = GTK_LOCK_BUTTON (user_data);
|
||
|
|
GError *error;
|
||
|
|
|
||
|
|
error = NULL;
|
||
|
|
if (!g_permission_release_finish (button->permission, result, &error))
|
||
|
|
{
|
||
|
|
g_warning ("Error releasing permission: %s", error->message);
|
||
|
|
g_error_free (error);
|
||
|
|
}
|
||
|
|
|
||
|
|
g_object_unref (button->cancellable);
|
||
|
|
button->cancellable = NULL;
|
||
|
|
|
||
|
|
update_state (button);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
gtk_lock_button_clicked (GtkButton *widget)
|
||
|
|
{
|
||
|
|
GtkLockButton *button = GTK_LOCK_BUTTON (widget);
|
||
|
|
|
||
|
|
/* if we already have a pending interactive check or permission is not set,
|
||
|
|
* then do nothing
|
||
|
|
*/
|
||
|
|
if (button->cancellable != NULL || button->permission == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (g_permission_get_allowed (button->permission))
|
||
|
|
{
|
||
|
|
if (g_permission_get_can_release (button->permission))
|
||
|
|
{
|
||
|
|
button->cancellable = g_cancellable_new ();
|
||
|
|
|
||
|
|
g_permission_release_async (button->permission,
|
||
|
|
button->cancellable,
|
||
|
|
release_cb,
|
||
|
|
button);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (g_permission_get_can_acquire (button->permission))
|
||
|
|
{
|
||
|
|
button->cancellable = g_cancellable_new ();
|
||
|
|
|
||
|
|
g_permission_acquire_async (button->permission,
|
||
|
|
button->cancellable,
|
||
|
|
acquire_cb,
|
||
|
|
button);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* gtk_lock_button_new:
|
||
|
|
* @permission: (nullable): a `GPermission`
|
||
|
|
*
|
||
|
|
* Creates a new lock button which reflects the @permission.
|
||
|
|
*
|
||
|
|
* Returns: a new `GtkLockButton`
|
||
|
|
*
|
||
|
|
* Deprecated: 4.10: This widget will be removed in GTK 5
|
||
|
|
*/
|
||
|
|
GtkWidget *
|
||
|
|
gtk_lock_button_new (GPermission *permission)
|
||
|
|
{
|
||
|
|
return GTK_WIDGET (g_object_new (GTK_TYPE_LOCK_BUTTON,
|
||
|
|
"permission", permission,
|
||
|
|
NULL));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* gtk_lock_button_get_permission: (attributes org.gtk.Method.get_property=permission)
|
||
|
|
* @button: a `GtkLockButton`
|
||
|
|
*
|
||
|
|
* Obtains the `GPermission` object that controls @button.
|
||
|
|
*
|
||
|
|
* Returns: (transfer none) (nullable): the `GPermission` of @button
|
||
|
|
*
|
||
|
|
* Deprecated: 4.10: This widget will be removed in GTK 5
|
||
|
|
*/
|
||
|
|
GPermission *
|
||
|
|
gtk_lock_button_get_permission (GtkLockButton *button)
|
||
|
|
{
|
||
|
|
g_return_val_if_fail (GTK_IS_LOCK_BUTTON (button), NULL);
|
||
|
|
|
||
|
|
return button->permission;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* gtk_lock_button_set_permission: (attributes org.gtk.Method.set_property=permission)
|
||
|
|
* @button: a `GtkLockButton`
|
||
|
|
* @permission: (nullable): a `GPermission` object
|
||
|
|
*
|
||
|
|
* Sets the `GPermission` object that controls @button.
|
||
|
|
*
|
||
|
|
* Deprecated: 4.10: This widget will be removed in GTK 5
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
gtk_lock_button_set_permission (GtkLockButton *button,
|
||
|
|
GPermission *permission)
|
||
|
|
{
|
||
|
|
g_return_if_fail (GTK_IS_LOCK_BUTTON (button));
|
||
|
|
g_return_if_fail (permission == NULL || G_IS_PERMISSION (permission));
|
||
|
|
|
||
|
|
if (button->permission != permission)
|
||
|
|
{
|
||
|
|
if (button->permission)
|
||
|
|
{
|
||
|
|
g_signal_handlers_disconnect_by_func (button->permission,
|
||
|
|
on_permission_changed,
|
||
|
|
button);
|
||
|
|
g_object_unref (button->permission);
|
||
|
|
}
|
||
|
|
|
||
|
|
button->permission = permission;
|
||
|
|
|
||
|
|
if (button->permission)
|
||
|
|
{
|
||
|
|
g_object_ref (button->permission);
|
||
|
|
g_signal_connect (button->permission, "notify",
|
||
|
|
G_CALLBACK (on_permission_changed), button);
|
||
|
|
}
|
||
|
|
|
||
|
|
update_state (button);
|
||
|
|
|
||
|
|
g_object_notify (G_OBJECT (button), "permission");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *
|
||
|
|
_gtk_lock_button_get_current_text (GtkLockButton *button)
|
||
|
|
{
|
||
|
|
GtkWidget *label;
|
||
|
|
|
||
|
|
g_return_val_if_fail (GTK_IS_LOCK_BUTTON (button), NULL);
|
||
|
|
|
||
|
|
label = gtk_stack_get_visible_child (GTK_STACK (button->stack));
|
||
|
|
|
||
|
|
return gtk_label_get_text (GTK_LABEL (label));
|
||
|
|
}
|
||
|
|
|