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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2013 Red Hat, Inc.
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*/
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/**
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* SECTION:nmt-widget-list
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* @short_description: A list of widgets, with Add and Remove buttons
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*
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* #NmtWidgetList presents a homogeneous list of widgets, with "Remove"
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* buttons next to each one, and an "Add" button at the button to add
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* new ones.
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*
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* It is the base class for #NmtAddressList, and is used internally by
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* #NmtRouteTable.
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*
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* FIXME: The way this works is sort of weird.
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*/
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#include "libnm-client-aux-extern/nm-default-client.h"
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#include "nmt-widget-list.h"
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <stdlib.h>
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#include "libnmt-newt/nmt-newt.h"
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G_DEFINE_TYPE(NmtWidgetList, nmt_widget_list, NMT_TYPE_NEWT_GRID)
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#define NMT_WIDGET_LIST_GET_PRIVATE(o) \
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(G_TYPE_INSTANCE_GET_PRIVATE((o), NMT_TYPE_WIDGET_LIST, NmtWidgetListPrivate))
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typedef struct {
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int length;
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NmtWidgetListCallback create_callback;
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gpointer user_data;
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GDestroyNotify destroy_notify;
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NmtNewtWidget *empty_widget;
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GPtrArray *widgets;
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GPtrArray *remove_buttons;
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NmtNewtWidget *add_button;
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GBinding * add_sensitivity;
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} NmtWidgetListPrivate;
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enum {
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PROP_0,
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PROP_CREATE_CALLBACK,
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PROP_USER_DATA,
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PROP_DESTROY_NOTIFY,
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PROP_EMPTY_WIDGET,
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PROP_LENGTH,
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LAST_PROP
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};
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enum {
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ADD_CLICKED,
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REMOVE_CLICKED,
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LAST_SIGNAL
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};
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static guint signals[LAST_SIGNAL] = {0};
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static void add_clicked(NmtNewtButton *button, gpointer user_data);
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static void remove_clicked(NmtNewtButton *button, gpointer user_data);
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/**
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* NmtWidgetListCallback:
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* @list: the #NmtWidgetList
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* @n: the number of the widget being added
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* @user_data: the callback's user data
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*
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* Called by #NmtWidgetList to ask for a new widget to be created.
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*
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* Note that the widget is not created to go with any particular
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* value, but rather is created to be at a certain spot in the list.
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* When an element is deleted from the list, it is actually always
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* the last widget in the list that is removed, but it is assumed
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* that the widget list is bound to some array-valued property, and
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* so when an element is deleted from that array, the widgets will
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* all update themselves automatically when the array changes.
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*
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* Returns: a new widget for the list
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*/
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/**
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* nmt_widget_list_new:
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* @create_callback: callback to create new widgets
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* @user_data: user data for @create_callback
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* @destroy_notify: #GDestroyNotify for @user_data
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* @empty_widget: (allow-none): a widget to display when there are
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* no "real" widgets in the list.
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*
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* Creates a new #NmtWidgetList.
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*
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* Returns: a new #NmtWidgetList.
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*/
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NmtNewtWidget *
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nmt_widget_list_new(NmtWidgetListCallback create_callback,
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gpointer user_data,
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GDestroyNotify destroy_notify,
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NmtNewtWidget * empty_widget)
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{
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return g_object_new(NMT_TYPE_WIDGET_LIST,
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"create-callback",
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create_callback,
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"user-data",
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user_data,
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"destroy-notify",
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destroy_notify,
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"empty-widget",
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empty_widget,
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NULL);
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}
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static void
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nmt_widget_list_init(NmtWidgetList *list)
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{
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NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(list);
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priv->widgets = g_ptr_array_new();
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priv->remove_buttons = g_ptr_array_new();
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priv->add_button = nmt_newt_button_new(_("Add..."));
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g_signal_connect(priv->add_button, "clicked", G_CALLBACK(add_clicked), list);
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nmt_newt_grid_add(NMT_NEWT_GRID(list), priv->add_button, 0, 0);
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}
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static void
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nmt_widget_list_constructed(GObject *object)
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{
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NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(object);
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if (priv->length == 0 && priv->empty_widget) {
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nmt_newt_widget_set_visible(priv->empty_widget, TRUE);
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nmt_newt_grid_move(NMT_NEWT_GRID(object), priv->add_button, 0, 1);
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}
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G_OBJECT_CLASS(nmt_widget_list_parent_class)->constructed(object);
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}
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static void
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nmt_widget_list_finalize(GObject *object)
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{
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NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(object);
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g_ptr_array_unref(priv->widgets);
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g_ptr_array_unref(priv->remove_buttons);
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if (priv->user_data && priv->destroy_notify)
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priv->destroy_notify(priv->user_data);
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g_clear_object(&priv->empty_widget);
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G_OBJECT_CLASS(nmt_widget_list_parent_class)->finalize(object);
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}
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static void
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ensure_widgets(NmtWidgetList *list)
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{
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NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(list);
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NmtNewtWidget * widget, *button, *focus;
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gboolean was_empty;
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NmtNewtForm * form;
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int i;
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was_empty = priv->widgets->len == 0;
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if (priv->length < priv->widgets->len) {
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/* remove excess widgets */
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for (i = priv->length; i < priv->widgets->len; i++) {
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nmt_newt_container_remove(NMT_NEWT_CONTAINER(list), priv->widgets->pdata[i]);
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nmt_newt_container_remove(NMT_NEWT_CONTAINER(list), priv->remove_buttons->pdata[i]);
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}
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g_ptr_array_set_size(priv->widgets, priv->length);
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g_ptr_array_set_size(priv->remove_buttons, priv->length);
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} else if (priv->length > priv->widgets->len) {
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/* add new widgets */
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for (i = priv->widgets->len; i < priv->length; i++) {
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widget = NMT_WIDGET_LIST_GET_CLASS(list)->create_widget(list, i);
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nmt_newt_grid_add(NMT_NEWT_GRID(list), widget, 0, i);
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g_ptr_array_add(priv->widgets, widget);
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button = nmt_newt_button_new(_("Remove"));
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g_signal_connect(button, "clicked", G_CALLBACK(remove_clicked), list);
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nmt_newt_grid_add(NMT_NEWT_GRID(list), button, 1, i);
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nmt_newt_widget_set_padding(button, 1, 0, 0, 0);
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g_ptr_array_add(priv->remove_buttons, button);
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}
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} else
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return;
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if (priv->widgets->len == 0 && priv->empty_widget) {
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nmt_newt_widget_set_visible(priv->empty_widget, TRUE);
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nmt_newt_grid_move(NMT_NEWT_GRID(list), priv->add_button, 0, 1);
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} else {
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if (was_empty && priv->empty_widget)
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nmt_newt_widget_set_visible(priv->empty_widget, FALSE);
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nmt_newt_grid_move(NMT_NEWT_GRID(list), priv->add_button, 0, priv->length);
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}
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form = nmt_newt_widget_get_form(NMT_NEWT_WIDGET(list));
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if (form) {
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if (priv->widgets->len) {
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if (was_empty)
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focus = priv->widgets->pdata[0];
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else
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focus = priv->widgets->pdata[priv->widgets->len - 1];
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} else
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focus = priv->add_button;
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nmt_newt_form_set_focus(form, focus);
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}
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g_clear_object(&priv->add_sensitivity);
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if (priv->widgets->len) {
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widget = priv->widgets->pdata[priv->widgets->len - 1];
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priv->add_sensitivity = g_object_bind_property(widget,
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"valid",
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priv->add_button,
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"sensitive",
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G_BINDING_SYNC_CREATE);
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g_object_add_weak_pointer(G_OBJECT(priv->add_sensitivity),
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(gpointer *) &priv->add_sensitivity);
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} else
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nmt_newt_component_set_sensitive(NMT_NEWT_COMPONENT(priv->add_button), TRUE);
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}
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static void
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add_clicked(NmtNewtButton *button, gpointer list)
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{
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g_signal_emit(G_OBJECT(list), signals[ADD_CLICKED], 0, NULL);
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}
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static void
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remove_clicked(NmtNewtButton *button, gpointer list)
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{
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NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(list);
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int i;
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for (i = 0; i < priv->remove_buttons->len; i++) {
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if (priv->remove_buttons->pdata[i] == (gpointer) button)
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break;
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}
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g_return_if_fail(i < priv->remove_buttons->len);
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g_signal_emit(G_OBJECT(list), signals[REMOVE_CLICKED], 0, i, NULL);
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}
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static NmtNewtWidget *
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nmt_widget_list_real_create_widget(NmtWidgetList *list, int n)
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{
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NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(list);
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g_return_val_if_fail(priv->create_callback != NULL, NULL);
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return priv->create_callback(list, n, priv->user_data);
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}
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Packit Service |
dff8e4 |
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Packit Service |
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/**
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dff8e4 |
* nmt_widget_list_get_length:
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dff8e4 |
* @list: the #NmtNewtWidgetList
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dff8e4 |
*
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dff8e4 |
* Gets the number of widgets in the list.
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dff8e4 |
*
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dff8e4 |
* Returns: the number of widgets in the list.
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dff8e4 |
*/
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dff8e4 |
int
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dff8e4 |
nmt_widget_list_get_length(NmtWidgetList *list)
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Packit Service |
dff8e4 |
{
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dff8e4 |
NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(list);
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dff8e4 |
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dff8e4 |
return priv->length;
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dff8e4 |
}
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dff8e4 |
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dff8e4 |
/**
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dff8e4 |
* nmt_widget_list_set_length:
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dff8e4 |
* @list: the #NmtNewtWidgetList
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dff8e4 |
* @length: the new length
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dff8e4 |
*
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dff8e4 |
* Changes the number of widgets in the list. Widgets will be added or
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dff8e4 |
* deleted as necessary.
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dff8e4 |
*/
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dff8e4 |
void
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dff8e4 |
nmt_widget_list_set_length(NmtWidgetList *list, int length)
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Packit Service |
dff8e4 |
{
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dff8e4 |
NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(list);
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dff8e4 |
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dff8e4 |
if (priv->length != length) {
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dff8e4 |
priv->length = length;
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dff8e4 |
g_object_notify(G_OBJECT(list), "length");
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dff8e4 |
}
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dff8e4 |
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dff8e4 |
ensure_widgets(list);
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dff8e4 |
}
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dff8e4 |
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dff8e4 |
static void
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dff8e4 |
nmt_widget_list_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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Packit Service |
dff8e4 |
{
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dff8e4 |
NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(object);
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dff8e4 |
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dff8e4 |
switch (prop_id) {
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dff8e4 |
case PROP_CREATE_CALLBACK:
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dff8e4 |
priv->create_callback = g_value_get_pointer(value);
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dff8e4 |
break;
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dff8e4 |
case PROP_USER_DATA:
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dff8e4 |
priv->user_data = g_value_get_pointer(value);
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dff8e4 |
break;
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dff8e4 |
case PROP_DESTROY_NOTIFY:
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dff8e4 |
priv->destroy_notify = g_value_get_pointer(value);
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dff8e4 |
break;
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dff8e4 |
case PROP_LENGTH:
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dff8e4 |
priv->length = g_value_get_int(value);
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dff8e4 |
ensure_widgets(NMT_WIDGET_LIST(object));
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dff8e4 |
break;
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dff8e4 |
case PROP_EMPTY_WIDGET:
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dff8e4 |
priv->empty_widget = g_value_get_object(value);
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dff8e4 |
if (priv->empty_widget) {
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|
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dff8e4 |
g_object_ref_sink(priv->empty_widget);
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|
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dff8e4 |
nmt_newt_grid_add(NMT_NEWT_GRID(object), priv->empty_widget, 0, 0);
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|
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dff8e4 |
}
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|
Packit Service |
dff8e4 |
break;
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|
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dff8e4 |
default:
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|
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dff8e4 |
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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|
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dff8e4 |
break;
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|
Packit Service |
dff8e4 |
}
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dff8e4 |
}
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|
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dff8e4 |
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dff8e4 |
static void
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dff8e4 |
nmt_widget_list_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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|
Packit Service |
dff8e4 |
{
|
|
Packit Service |
dff8e4 |
NmtWidgetListPrivate *priv = NMT_WIDGET_LIST_GET_PRIVATE(object);
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|
Packit Service |
dff8e4 |
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Packit Service |
dff8e4 |
switch (prop_id) {
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dff8e4 |
case PROP_CREATE_CALLBACK:
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|
Packit Service |
dff8e4 |
g_value_set_pointer(value, priv->create_callback);
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|
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dff8e4 |
break;
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dff8e4 |
case PROP_USER_DATA:
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dff8e4 |
g_value_set_pointer(value, priv->user_data);
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|
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dff8e4 |
break;
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dff8e4 |
case PROP_DESTROY_NOTIFY:
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dff8e4 |
g_value_set_pointer(value, priv->destroy_notify);
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dff8e4 |
break;
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dff8e4 |
case PROP_LENGTH:
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dff8e4 |
g_value_set_int(value, priv->length);
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|
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dff8e4 |
break;
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dff8e4 |
case PROP_EMPTY_WIDGET:
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|
Packit Service |
dff8e4 |
g_value_set_object(value, priv->empty_widget);
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|
Packit Service |
dff8e4 |
break;
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|
Packit Service |
dff8e4 |
default:
|
|
Packit Service |
dff8e4 |
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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|
Packit Service |
dff8e4 |
break;
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|
Packit Service |
dff8e4 |
}
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Packit Service |
dff8e4 |
}
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dff8e4 |
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Packit Service |
dff8e4 |
static void
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|
Packit Service |
dff8e4 |
nmt_widget_list_class_init(NmtWidgetListClass *list_class)
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|
Packit Service |
dff8e4 |
{
|
|
Packit Service |
dff8e4 |
GObjectClass *object_class = G_OBJECT_CLASS(list_class);
|
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Packit Service |
dff8e4 |
|
|
Packit Service |
dff8e4 |
g_type_class_add_private(list_class, sizeof(NmtWidgetListPrivate));
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Packit Service |
dff8e4 |
|
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Packit Service |
dff8e4 |
/* virtual methods */
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dff8e4 |
object_class->constructed = nmt_widget_list_constructed;
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|
Packit Service |
dff8e4 |
object_class->set_property = nmt_widget_list_set_property;
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|
Packit Service |
dff8e4 |
object_class->get_property = nmt_widget_list_get_property;
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|
Packit Service |
dff8e4 |
object_class->finalize = nmt_widget_list_finalize;
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|
Packit Service |
dff8e4 |
|
|
Packit Service |
dff8e4 |
list_class->create_widget = nmt_widget_list_real_create_widget;
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|
Packit Service |
dff8e4 |
|
|
Packit Service |
dff8e4 |
/* signals */
|
|
Packit Service |
dff8e4 |
|
|
Packit Service |
dff8e4 |
/**
|
|
Packit Service |
dff8e4 |
* NmtNewtWidget::add-clicked:
|
|
Packit Service |
dff8e4 |
* @list: the #NmtNewtWidgetList
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* Emitted when the user clicks the "Add" button. The caller can
|
|
Packit Service |
dff8e4 |
* decide whether or not to add a new widget, and call
|
|
Packit Service |
dff8e4 |
* nmt_widget_list_set_length() with the new length if so.
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* FIXME: the "Add" button should be insensitive if it's
|
|
Packit Service |
dff8e4 |
* not going to work.
|
|
Packit Service |
dff8e4 |
*/
|
|
Packit Service |
dff8e4 |
signals[ADD_CLICKED] = g_signal_new("add-clicked",
|
|
Packit Service |
dff8e4 |
G_OBJECT_CLASS_TYPE(object_class),
|
|
Packit Service |
dff8e4 |
G_SIGNAL_RUN_FIRST,
|
|
Packit Service |
dff8e4 |
G_STRUCT_OFFSET(NmtWidgetListClass, add_clicked),
|
|
Packit Service |
dff8e4 |
NULL,
|
|
Packit Service |
dff8e4 |
NULL,
|
|
Packit Service |
dff8e4 |
NULL,
|
|
Packit Service |
dff8e4 |
G_TYPE_NONE,
|
|
Packit Service |
dff8e4 |
0);
|
|
Packit Service |
dff8e4 |
/**
|
|
Packit Service |
dff8e4 |
* NmtNewtWidget::remove-clicked:
|
|
Packit Service |
dff8e4 |
* @list: the #NmtNewtWidgetList
|
|
Packit Service |
dff8e4 |
* @n: the widget being removed
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* Emitted when the user clicks one of the "Remove" buttons. The
|
|
Packit Service |
dff8e4 |
* caller can decide whether or not to remove the widget, and
|
|
Packit Service |
dff8e4 |
* call nmt_widget_list_set_length() with the new length if so.
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* FIXME: the "Remove" button should be insensitive if it's not
|
|
Packit Service |
dff8e4 |
* going to work.
|
|
Packit Service |
dff8e4 |
*/
|
|
Packit Service |
dff8e4 |
signals[REMOVE_CLICKED] = g_signal_new("remove-clicked",
|
|
Packit Service |
dff8e4 |
G_OBJECT_CLASS_TYPE(object_class),
|
|
Packit Service |
dff8e4 |
G_SIGNAL_RUN_FIRST,
|
|
Packit Service |
dff8e4 |
G_STRUCT_OFFSET(NmtWidgetListClass, remove_clicked),
|
|
Packit Service |
dff8e4 |
NULL,
|
|
Packit Service |
dff8e4 |
NULL,
|
|
Packit Service |
dff8e4 |
NULL,
|
|
Packit Service |
dff8e4 |
G_TYPE_NONE,
|
|
Packit Service |
dff8e4 |
1,
|
|
Packit Service |
dff8e4 |
G_TYPE_INT);
|
|
Packit Service |
dff8e4 |
|
|
Packit Service |
dff8e4 |
/* properties */
|
|
Packit Service |
dff8e4 |
|
|
Packit Service |
dff8e4 |
/**
|
|
Packit Service |
dff8e4 |
* NmtWidgetList:create-callback:
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* Callback called to create a new widget.
|
|
Packit Service |
dff8e4 |
*/
|
|
Packit Service |
dff8e4 |
g_object_class_install_property(
|
|
Packit Service |
dff8e4 |
object_class,
|
|
Packit Service |
dff8e4 |
PROP_CREATE_CALLBACK,
|
|
Packit Service |
dff8e4 |
g_param_spec_pointer("create-callback",
|
|
Packit Service |
dff8e4 |
"",
|
|
Packit Service |
dff8e4 |
"",
|
|
Packit Service |
dff8e4 |
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
Packit Service |
dff8e4 |
/**
|
|
Packit Service |
dff8e4 |
* NmtWidgetList:user-data:
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* User data for #NmtWidgetList:create-callback
|
|
Packit Service |
dff8e4 |
*/
|
|
Packit Service |
dff8e4 |
g_object_class_install_property(
|
|
Packit Service |
dff8e4 |
object_class,
|
|
Packit Service |
dff8e4 |
PROP_USER_DATA,
|
|
Packit Service |
dff8e4 |
g_param_spec_pointer("user-data", "", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
Packit Service |
dff8e4 |
/**
|
|
Packit Service |
dff8e4 |
* NmtWidgetList:destroy-notify:
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* #GDestroyNotify for #NmtWidgetList:user-data
|
|
Packit Service |
dff8e4 |
*/
|
|
Packit Service |
dff8e4 |
g_object_class_install_property(
|
|
Packit Service |
dff8e4 |
object_class,
|
|
Packit Service |
dff8e4 |
PROP_DESTROY_NOTIFY,
|
|
Packit Service |
dff8e4 |
g_param_spec_pointer("destroy-notify", "", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
Packit Service |
dff8e4 |
/**
|
|
Packit Service |
dff8e4 |
* NmtWidgetList:length:
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* The length of the widget list; changing this value will add or
|
|
Packit Service |
dff8e4 |
* remove widgets from the list.
|
|
Packit Service |
dff8e4 |
*/
|
|
Packit Service |
dff8e4 |
g_object_class_install_property(object_class,
|
|
Packit Service |
dff8e4 |
PROP_LENGTH,
|
|
Packit Service |
dff8e4 |
g_param_spec_int("length",
|
|
Packit Service |
dff8e4 |
"",
|
|
Packit Service |
dff8e4 |
"",
|
|
Packit Service |
dff8e4 |
0,
|
|
Packit Service |
dff8e4 |
G_MAXINT,
|
|
Packit Service |
dff8e4 |
0,
|
|
Packit Service |
dff8e4 |
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
Packit Service |
dff8e4 |
/**
|
|
Packit Service |
dff8e4 |
* NmtWidgetList:empty-widget:
|
|
Packit Service |
dff8e4 |
*
|
|
Packit Service |
dff8e4 |
* If non-%NULL, this widget will be displayed when there are
|
|
Packit Service |
dff8e4 |
* no "real" widgets in the list.
|
|
Packit Service |
dff8e4 |
*/
|
|
Packit Service |
dff8e4 |
g_object_class_install_property(
|
|
Packit Service |
dff8e4 |
object_class,
|
|
Packit Service |
dff8e4 |
PROP_EMPTY_WIDGET,
|
|
Packit Service |
dff8e4 |
g_param_spec_object("empty-widget",
|
|
Packit Service |
dff8e4 |
"",
|
|
Packit Service |
dff8e4 |
"",
|
|
Packit Service |
dff8e4 |
NMT_TYPE_NEWT_WIDGET,
|
|
Packit Service |
dff8e4 |
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
|
|
Packit Service |
dff8e4 |
}
|