b24ccb9415
So the panel implementations will be able to set a custom widget in the shell headerbar. It defaults to NULL, so by default panels set the plain label with the panel title.
293 lines
7.2 KiB
C
293 lines
7.2 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2010 Red Hat, Inc.
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* Copyright (C) 2010 Intel, Inc
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: William Jon McCann <jmccann@redhat.com>
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* Thomas Wood <thomas.wood@intel.com>
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*
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*/
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/**
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* SECTION:cc-panel
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* @short_description: An abstract class for Control Center panels
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*
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* CcPanel is an abstract class used to implement panels for the shell. A
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* panel contains a collection of related settings that are displayed within
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* the shell window.
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*/
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#include "config.h"
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#include "cc-panel.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <gtk/gtk.h>
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#include <gio/gio.h>
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#define CC_PANEL_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), CC_TYPE_PANEL, CcPanelPrivate))
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struct CcPanelPrivate
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{
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gchar *id;
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gchar *display_name;
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gchar *category;
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gchar *current_location;
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gboolean is_active;
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CcShell *shell;
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};
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enum
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{
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PROP_0,
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PROP_SHELL,
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PROP_PARAMETERS
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};
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G_DEFINE_ABSTRACT_TYPE (CcPanel, cc_panel, GTK_TYPE_BIN)
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static void
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cc_panel_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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CcPanel *panel;
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panel = CC_PANEL (object);
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switch (prop_id)
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{
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case PROP_SHELL:
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/* construct only property */
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panel->priv->shell = g_value_get_object (value);
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break;
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case PROP_PARAMETERS:
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{
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GVariant *parameters = g_value_get_variant (value);
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GVariant *v;
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gsize n_parameters;
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if (parameters == NULL)
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return;
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n_parameters = g_variant_n_children (parameters);
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if (n_parameters == 0)
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return;
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g_variant_get_child (parameters, 0, "v", &v);
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if (!g_variant_is_of_type (v, G_VARIANT_TYPE_DICTIONARY))
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g_warning ("Wrong type for the first argument GVariant, expected 'a{sv}' but got '%s'",
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(gchar *)g_variant_get_type (v));
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else if (g_variant_n_children (v) > 0)
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g_warning ("Ignoring additional flags");
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g_variant_unref (v);
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if (n_parameters > 1)
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g_warning ("Ignoring additional parameters");
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_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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cc_panel_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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CcPanel *panel;
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panel = CC_PANEL (object);
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switch (prop_id)
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{
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case PROP_SHELL:
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g_value_set_object (value, panel->priv->shell);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_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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cc_panel_finalize (GObject *object)
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{
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CcPanel *panel;
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g_return_if_fail (object != NULL);
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g_return_if_fail (CC_IS_PANEL (object));
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panel = CC_PANEL (object);
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g_free (panel->priv->id);
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g_free (panel->priv->display_name);
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G_OBJECT_CLASS (cc_panel_parent_class)->finalize (object);
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}
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static void
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cc_panel_get_preferred_width (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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{
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GtkBin *bin = GTK_BIN (widget);
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GtkWidget *child;
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if (minimum != NULL)
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*minimum = 0;
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if (natural != NULL)
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*natural = 0;
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if ((child = gtk_bin_get_child (bin)))
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gtk_widget_get_preferred_width (child, minimum, natural);
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}
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static void
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cc_panel_get_preferred_height (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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{
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GtkBin *bin = GTK_BIN (widget);
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GtkWidget *child;
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if (minimum != NULL)
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*minimum = 0;
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if (natural != NULL)
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*natural = 0;
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if ((child = gtk_bin_get_child (bin)))
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gtk_widget_get_preferred_height (child, minimum, natural);
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}
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static void
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cc_panel_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkAllocation child_allocation;
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GtkWidget *child;
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gtk_widget_set_allocation (widget, allocation);
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child_allocation = *allocation;
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child = gtk_bin_get_child (GTK_BIN (widget));
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g_assert (child);
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gtk_widget_size_allocate (child, &child_allocation);
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}
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static void
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cc_panel_class_init (CcPanelClass *klass)
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{
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GParamSpec *pspec;
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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object_class->get_property = cc_panel_get_property;
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object_class->set_property = cc_panel_set_property;
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object_class->finalize = cc_panel_finalize;
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widget_class->get_preferred_width = cc_panel_get_preferred_width;
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widget_class->get_preferred_height = cc_panel_get_preferred_height;
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widget_class->size_allocate = cc_panel_size_allocate;
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gtk_container_class_handle_border_width (GTK_CONTAINER_CLASS (klass));
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g_type_class_add_private (klass, sizeof (CcPanelPrivate));
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pspec = g_param_spec_object ("shell",
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"Shell",
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"Shell the Panel resides in",
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CC_TYPE_SHELL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS
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| G_PARAM_CONSTRUCT_ONLY);
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g_object_class_install_property (object_class, PROP_SHELL, pspec);
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pspec = g_param_spec_variant ("parameters",
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"Structured parameters",
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"Additional parameters passed externally (ie. command line, dbus activation)",
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G_VARIANT_TYPE ("av"),
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NULL,
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G_PARAM_WRITABLE);
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g_object_class_install_property (object_class, PROP_PARAMETERS, pspec);
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}
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static void
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cc_panel_init (CcPanel *panel)
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{
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panel->priv = CC_PANEL_GET_PRIVATE (panel);
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}
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/**
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* cc_panel_get_shell:
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* @panel: A #CcPanel
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*
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* Get the shell that the panel resides in
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*
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* Returns: a #CcShell
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*/
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CcShell *
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cc_panel_get_shell (CcPanel *panel)
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{
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return panel->priv->shell;
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}
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GPermission *
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cc_panel_get_permission (CcPanel *panel)
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{
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CcPanelClass *class = CC_PANEL_GET_CLASS (panel);
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if (class->get_permission)
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return class->get_permission (panel);
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return NULL;
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}
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const char *
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cc_panel_get_help_uri (CcPanel *panel)
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{
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CcPanelClass *class = CC_PANEL_GET_CLASS (panel);
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if (class->get_help_uri)
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return class->get_help_uri (panel);
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return NULL;
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}
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GtkWidget *
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cc_panel_get_title_widget (CcPanel *panel)
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{
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CcPanelClass *class = CC_PANEL_GET_CLASS (panel);
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if (class->get_title_widget)
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return class->get_title_widget (panel);
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return NULL;
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}
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