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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2001 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Authors:
* Chema Celorio <chema@celorio.com>
* Paolo Borelli <pborelli@katamail.com>
*/
#include "config.h"
#include <string.h>
#include <glib/gi18n-lib.h>
#include "glade.h"
#include "glade-signal.h"
#include "glade-xml-utils.h"
/**
* glade_signal_new:
* @name: a name for the signal
* @handler: a handler function for the signal
* @after: whether this handler should be called after the default emission phase
* @swapped: whether the handler's user data should be swapped with the emitter instance.
*
* Creates a new #GladeSignal with the given parameters.
*
* Returns: the new #GladeSignal
*/
GladeSignal *glade_signal_new (const gchar *name,
const gchar *handler,
const gchar *userdata,
gboolean after,
gboolean swapped)
{
GladeSignal *signal = g_slice_new0 (GladeSignal);
signal->name = g_strdup (name);
signal->handler = g_strdup (handler);
signal->userdata = userdata ? g_strdup (userdata) : NULL;
signal->after = after;
signal->swapped = swapped;
return signal;
}
/**
* glade_signal_free:
* @signal: a #GladeSignal
*
* Frees @signal and its associated memory.
*/
void
glade_signal_free (GladeSignal *signal)
{
g_return_if_fail (GLADE_IS_SIGNAL (signal));
g_free (signal->name);
g_free (signal->handler);
g_free (signal->userdata);
g_free (signal->support_warning);
g_slice_free (GladeSignal, signal);
}
/**
* glade_signal_equal:
* @sig1: a #GladeSignal
* @sig2: a #GladeSignal
*
* Returns: %TRUE if @sig1 and @sig2 have identical attributes, %FALSE otherwise
*/
gboolean
glade_signal_equal (GladeSignal *sig1, GladeSignal *sig2)
{
gboolean ret = FALSE;
g_return_val_if_fail (GLADE_IS_SIGNAL (sig1), FALSE);
g_return_val_if_fail (GLADE_IS_SIGNAL (sig2), FALSE);
/* Intentionally ignore support_warning */
if (!strcmp (sig1->name, sig2->name) &&
!strcmp (sig1->handler, sig2->handler) &&
sig1->after == sig2->after &&
sig1->swapped == sig2->swapped)
{
if ((sig1->userdata == NULL && sig2->userdata == NULL) ||
(sig1->userdata != NULL && sig2->userdata != NULL &&
!strcmp (sig1->userdata, sig2->userdata)))
ret = TRUE;
}
return ret;
}
/**
* glade_signal_clone:
* @signal: a #GladeSignal
*
* Returns: a new #GladeSignal with the same attributes as @signal
*/
GladeSignal *
glade_signal_clone (const GladeSignal *signal)
{
GladeSignal *dup;
g_return_val_if_fail (GLADE_IS_SIGNAL (signal), NULL);
dup = glade_signal_new (signal->name,
signal->handler,
signal->userdata,
signal->after,
signal->swapped);
glade_signal_set_support_warning (dup, signal->support_warning);
return dup;
}
/**
* glade_signal_write:
* @signal: The #GladeSignal
* @fmt: The #GladeProjectFormat to write the signal for
* @context: A #GladeXmlContext
* @node: A #GladeXmlNode
*
* Writes @signal to @node
*/
void
glade_signal_write (GladeSignal *signal,
GladeProjectFormat fmt,
GladeXmlContext *context,
GladeXmlNode *node)
{
GladeXmlNode *signal_node;
gchar *name;
/* Should assert GLADE_XML_TAG_WIDGET tag here, but no
* access to project, so not really seriosly needed
*/
name = g_strdup (signal->name);
if (fmt == GLADE_PROJECT_FORMAT_LIBGLADE)
glade_util_replace (name, '-', '_');
/* Now dump the node values... */
signal_node = glade_xml_node_new (context, GLADE_XML_TAG_SIGNAL);
glade_xml_node_append_child (node, signal_node);
glade_xml_node_set_property_string (signal_node, GLADE_XML_TAG_NAME, name);
glade_xml_node_set_property_string (signal_node, GLADE_XML_TAG_HANDLER, signal->handler);
if (signal->userdata)
glade_xml_node_set_property_string (signal_node,
GLADE_XML_TAG_OBJECT,
signal->userdata);
if (signal->after)
glade_xml_node_set_property_string (signal_node,
GLADE_XML_TAG_AFTER,
GLADE_XML_TAG_SIGNAL_TRUE);
/* Always serialize swapped regardless of format (libglade should not complain about this
* and we prefer to not lose data in conversions).
*/
glade_xml_node_set_property_string (signal_node,
GLADE_XML_TAG_SWAPPED,
signal->swapped ?
GLADE_XML_TAG_SIGNAL_TRUE : GLADE_XML_TAG_SIGNAL_FALSE);
g_free (name);
}
/**
* glade_signal_read:
* @node: The #GladeXmlNode to read
*
* Reads and creates a ner #GladeSignal based on @node
*
* Returns: A newly created #GladeSignal
*/
GladeSignal *
glade_signal_read (GladeXmlNode *node)
{
GladeSignal *signal;
gchar *name, *handler;
g_return_val_if_fail (glade_xml_node_verify_silent
(node, GLADE_XML_TAG_SIGNAL), NULL);
if (!(name =
glade_xml_get_property_string_required (node, GLADE_XML_TAG_NAME, NULL)))
return NULL;
glade_util_replace (name, '_', '-');
if (!(handler =
glade_xml_get_property_string_required (node, GLADE_XML_TAG_HANDLER, NULL)))
{
g_free (name);
return NULL;
}
signal = g_new0 (GladeSignal, 1);
signal->name = name;
signal->handler = handler;
signal->after = glade_xml_get_property_boolean (node, GLADE_XML_TAG_AFTER, FALSE);
signal->userdata = glade_xml_get_property_string (node, GLADE_XML_TAG_OBJECT);
signal->swapped = glade_xml_get_property_boolean (node, GLADE_XML_TAG_SWAPPED,
/* If a signal specifies an object, its swapped
* by default behaviour in GtkBuilder */
signal->userdata != NULL);
return signal;
}
void
glade_signal_set_support_warning (GladeSignal *signal,
const gchar *support_warning)
{
g_return_if_fail (GLADE_IS_SIGNAL (signal));
if (g_strcmp0 (signal->support_warning, support_warning))
{
g_free (signal->support_warning);
signal->support_warning =
support_warning ? g_strdup (support_warning) : NULL;
}
}
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