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Viewing changes to shell/ev-file-monitor.c

  • Committer: Bazaar Package Importer
  • Author(s): Josselin Mouette, Josselin Mouette, Marc 'HE' Brockschmidt
  • Date: 2008-12-31 16:41:58 UTC
  • mfrom: (1.1.36 upstream)
  • mto: (1.5.1 sid)
  • mto: This revision was merged to the branch mainline in revision 109.
  • Revision ID: james.westby@ubuntu.com-20081231164158-xnobl1sokvvc6ho8
Tags: 2.24.2-1
http://bugs.debian.org/506836
[ Josselin Mouette ]
* README.Debian: document that you need to install poppler-data.
  Closes: #506836.

[ Marc 'HE' Brockschmidt ]
* debian/control: Make the Gnome team maintainer. I'm not doing the job
   anyway.

[ Josselin Mouette ]
* New upstream release.
* Require nautilus 2.22 to build the extension for the correct 
  version.

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shell/ev-file-monitor.c
 
1
/* ev-file-monitor.c
 
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 *  this file is part of evince, a gnome document viewer
 
3
 *
 
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 * Copyright (C) 2008 Carlos Garcia Campos <carlosgc@gnome.org>
 
5
 *
 
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 * Evince is free software; you can redistribute it and/or modify it
 
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 * under the terms of the GNU General Public License as published by
 
8
 * 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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 * Evince is distributed in the hope that it will be useful, but
 
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 * 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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 * General Public License for more details.
 
15
 *
 
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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, write to the Free Software
 
18
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 
19
 */
 
20
 
 
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#include "config.h"
 
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#include <glib.h>
 
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#include <gio/gio.h>
 
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#include "ev-file-monitor.h"
 
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enum {
 
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        CHANGED,
 
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        N_SIGNALS
 
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};
 
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struct _EvFileMonitorPrivate {
 
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        GFileMonitor *monitor;
 
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        guint         timeout_id;
 
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};
 
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static void ev_file_monitor_timeout_start (EvFileMonitor    *ev_monitor);
 
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static void ev_file_monitor_timeout_stop  (EvFileMonitor    *ev_monitor);
 
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static void ev_file_monitor_changed_cb    (GFileMonitor     *monitor,
 
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                                           GFile            *file,
 
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                                           GFile            *other_file,
 
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                                           GFileMonitorEvent event_type,
 
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                                           EvFileMonitor    *ev_monitor);
 
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#define EV_FILE_MONITOR_GET_PRIVATE(object) \
 
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                (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_FILE_MONITOR, EvFileMonitorPrivate))
 
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G_DEFINE_TYPE (EvFileMonitor, ev_file_monitor, G_TYPE_OBJECT)
 
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static guint signals[N_SIGNALS];
 
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static void
 
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ev_file_monitor_init (EvFileMonitor *ev_monitor)
 
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{
 
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        ev_monitor->priv = EV_FILE_MONITOR_GET_PRIVATE (ev_monitor);
 
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}
 
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static void
 
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ev_file_monitor_finalize (GObject *object)
 
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{
 
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        EvFileMonitor *ev_monitor = EV_FILE_MONITOR (object);
 
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        ev_file_monitor_timeout_stop (ev_monitor);
 
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        if (ev_monitor->priv->monitor) {
 
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                g_signal_handlers_disconnect_by_func (ev_monitor->priv->monitor,
 
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                                                      ev_file_monitor_changed_cb,
 
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                                                      ev_monitor);
 
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                g_object_unref (ev_monitor->priv->monitor);
 
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                ev_monitor->priv->monitor = NULL;
 
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        }
 
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        G_OBJECT_CLASS (ev_file_monitor_parent_class)->finalize (object);
 
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}
 
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static void
 
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ev_file_monitor_class_init (EvFileMonitorClass *klass)
 
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{
 
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        GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 
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        g_type_class_add_private (g_object_class, sizeof (EvFileMonitorPrivate));
 
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        g_object_class->finalize = ev_file_monitor_finalize;
 
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        /* Signals */
 
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        signals[CHANGED] =
 
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                g_signal_new ("changed",
 
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                              EV_TYPE_FILE_MONITOR,
 
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                              G_SIGNAL_RUN_LAST,
 
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                              G_STRUCT_OFFSET (EvFileMonitorClass, changed),
 
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                              NULL, NULL,
 
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                              g_cclosure_marshal_VOID__VOID,
 
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                              G_TYPE_NONE, 0);
 
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}
 
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static gboolean
 
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timeout_cb (EvFileMonitor *ev_monitor)
 
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{
 
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        g_signal_emit (ev_monitor, signals[CHANGED], 0);
 
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        ev_monitor->priv->timeout_id = 0;
 
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        return FALSE;
 
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}
 
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static void
 
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ev_file_monitor_timeout_start (EvFileMonitor *ev_monitor)
 
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{
 
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        ev_file_monitor_timeout_stop (ev_monitor);
 
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        ev_monitor->priv->timeout_id =
 
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                g_timeout_add_seconds (5, (GSourceFunc)timeout_cb, ev_monitor);
 
114
}
 
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116
static void
 
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ev_file_monitor_timeout_stop (EvFileMonitor *ev_monitor)
 
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{
 
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        if (ev_monitor->priv->timeout_id > 0) {
 
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                g_source_remove (ev_monitor->priv->timeout_id);
 
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                ev_monitor->priv->timeout_id = 0;
 
122
        }
 
123
}
 
124
 
 
125
static void
 
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ev_file_monitor_changed_cb (GFileMonitor     *monitor,
 
127
                            GFile            *file,
 
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                            GFile            *other_file,
 
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                            GFileMonitorEvent event_type,
 
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                            EvFileMonitor    *ev_monitor)
 
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{
 
132
        switch (event_type) {
 
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        case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
 
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                ev_file_monitor_timeout_stop (ev_monitor);
 
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                g_signal_emit (ev_monitor, signals[CHANGED], 0);
 
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                break;
 
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        case G_FILE_MONITOR_EVENT_CHANGED:
 
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                ev_file_monitor_timeout_start (ev_monitor);
 
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                break;
 
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        default:
 
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                break;
 
143
        }
 
144
}
 
145
 
 
146
EvFileMonitor *
 
147
ev_file_monitor_new (const gchar *uri)
 
148
{
 
149
        EvFileMonitor *ev_monitor;
 
150
        GFile         *file;
 
151
        GError        *error = NULL;
 
152
        
 
153
        ev_monitor = EV_FILE_MONITOR (g_object_new (EV_TYPE_FILE_MONITOR, NULL));
 
154
 
 
155
        file = g_file_new_for_uri (uri);
 
156
        ev_monitor->priv->monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, &error);
 
157
        if (ev_monitor->priv->monitor) {
 
158
                g_signal_connect (G_OBJECT (ev_monitor->priv->monitor), "changed",
 
159
                                  G_CALLBACK (ev_file_monitor_changed_cb), ev_monitor);
 
160
        } else if (error) {
 
161
                g_warning ("%s", error->message);
 
162
                g_error_free (error);
 
163
        }
 
164
 
 
165
        g_object_unref (file);
 
166
 
 
167
        return ev_monitor;
 
168
}