path: root/lib/widgets/ephy-search-entry.c

/* 
 *  Copyright (C) 2002 Jorn Baayen <jorn@nl.linux.org>
 *
 *  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *  $Id$
 */

#include <gtk/gtklabel.h>
#include <config.h>
#include <libgnome/gnome-i18n.h>
#include <string.h>

#include "ephy-search-entry.h"

static void ephy_search_entry_class_init (EphySearchEntryClass *klass);
static void ephy_search_entry_init (EphySearchEntry *entry);

#define EPHY_SEARCH_ENTRY_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_SEARCH_ENTRY, EphySearchEntryPrivate))

struct EphySearchEntryPrivate
{
    gboolean clearing;

    guint timeout;
};

enum
{
    SEARCH,
    LAST_SIGNAL
};

static GObjectClass *parent_class = NULL;

static guint ephy_search_entry_signals[LAST_SIGNAL] = { 0 };

GType
ephy_search_entry_get_type (void)
{
    static GType ephy_search_entry_type = 0;

    if (ephy_search_entry_type == 0)
    {
        static const GTypeInfo our_info =
        {
            sizeof (EphySearchEntryClass),
            NULL,
            NULL,
            (GClassInitFunc) ephy_search_entry_class_init,
            NULL,
            NULL,
            sizeof (EphySearchEntry),
            0,
            (GInstanceInitFunc) ephy_search_entry_init
        };

        ephy_search_entry_type = g_type_register_static (GTK_TYPE_ENTRY,
                                     "EphySearchEntry",
                                     &our_info, 0);
    }

    return ephy_search_entry_type;
}

static void
ephy_search_entry_class_init (EphySearchEntryClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    parent_class = g_type_class_peek_parent (klass);

    ephy_search_entry_signals[SEARCH] =
        g_signal_new ("search",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (EphySearchEntryClass, search),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__STRING,
                  G_TYPE_NONE,
                  1,
                  G_TYPE_STRING);

    g_type_class_add_private (object_class, sizeof (EphySearchEntryPrivate));
}

static gboolean
ephy_search_entry_timeout_cb (EphySearchEntry *entry)
{
    gdk_threads_enter ();

    g_signal_emit (G_OBJECT (entry), ephy_search_entry_signals[SEARCH], 0,
               gtk_entry_get_text (GTK_ENTRY (entry)));
    entry->priv->timeout = 0;

    gdk_threads_leave ();

    return FALSE;
}

static void
ephy_search_entry_changed_cb (GtkEditable *editable,
                  EphySearchEntry *entry)
{
    if (entry->priv->clearing == TRUE)
        return;

    if (entry->priv->timeout != 0)
    {
        g_source_remove (entry->priv->timeout);
        entry->priv->timeout = 0;
    }

    entry->priv->timeout = g_timeout_add (300, (GSourceFunc) ephy_search_entry_timeout_cb, entry);
}

static void
ephy_search_entry_destroy_cb (GtkEditable *editable,
                  EphySearchEntry *entry)
{
    if (entry->priv->timeout)
    {
        g_source_remove (entry->priv->timeout);
        entry->priv->timeout = 0;
    }
}

static void
ephy_search_entry_init (EphySearchEntry *entry)
{
    entry->priv = EPHY_SEARCH_ENTRY_GET_PRIVATE (entry);

    entry->priv->clearing = FALSE;
    entry->priv->timeout = 0;

    g_signal_connect (G_OBJECT (entry),
              "destroy",
              G_CALLBACK (ephy_search_entry_destroy_cb),
              entry);
    g_signal_connect (G_OBJECT (entry),
              "changed",
              G_CALLBACK (ephy_search_entry_changed_cb),
              entry);
}

GtkWidget *
ephy_search_entry_new (void)
{
    GtkWidget *entry;

    entry = GTK_WIDGET (g_object_new (EPHY_TYPE_SEARCH_ENTRY,
                      NULL));

    return entry;
}

void
ephy_search_entry_clear (EphySearchEntry *entry)
{
    if (entry->priv->timeout != 0)
    {
        g_source_remove (entry->priv->timeout);
        entry->priv->timeout = 0;
    }

    entry->priv->clearing = TRUE;

    gtk_entry_set_text (GTK_ENTRY (entry), "");

    entry->priv->clearing = FALSE;
}