first commit

1 files changed, 680 insertions, 0 deletions

diff --git a/src/gs-watcher-x11.c.orig b/src/gs-watcher-x11.c.orig
new file mode 100644
index 0000000..a9c90e8
--- /dev/null
+++ b/src/gs-watcher-x11.c.orig
@@ -0,0 +1,680 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2004-2006 William Jon McCann <[email protected]>
+ * Copyright (C) 2008      Red Hat, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Authors: William Jon McCann <[email protected]>
+ *
+ */
+
+#include "config.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include <errno.h>
+
+#include <string.h>
+#include <gdk/gdkx.h>
+
+#include <dbus/dbus.h>
+#include <dbus/dbus-glib.h>
+
+#include "gs-watcher.h"
+#include "gs-marshal.h"
+#include "gs-debug.h"
+
+static void     gs_watcher_class_init (GSWatcherClass *klass);
+static void     gs_watcher_init       (GSWatcher      *watcher);
+static void     gs_watcher_finalize   (GObject        *object);
+
+static gboolean watchdog_timer        (GSWatcher      *watcher);
+
+#define GS_WATCHER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GS_TYPE_WATCHER, GSWatcherPrivate))
+
+struct GSWatcherPrivate
+{
+    /* settings */
+    guint           enabled : 1;
+    guint           delta_notice_timeout;
+
+    /* state */
+    guint           active : 1;
+    guint           idle : 1;
+    guint           idle_notice : 1;
+
+    guint           idle_id;
+    char           *status_message;
+
+    DBusGProxy     *presence_proxy;
+    guint           watchdog_timer_id;
+};
+
+enum
+{
+    PROP_0,
+    PROP_STATUS_MESSAGE
+};
+
+enum
+{
+    IDLE_CHANGED,
+    IDLE_NOTICE_CHANGED,
+    LAST_SIGNAL
+};
+
+static guint signals [LAST_SIGNAL] = { 0, };
+
+G_DEFINE_TYPE (GSWatcher, gs_watcher, G_TYPE_OBJECT)
+
+static void
+remove_watchdog_timer (GSWatcher *watcher)
+{
+    if (watcher->priv->watchdog_timer_id != 0)
+    {
+        g_source_remove (watcher->priv->watchdog_timer_id);
+        watcher->priv->watchdog_timer_id = 0;
+    }
+}
+
+static void
+add_watchdog_timer (GSWatcher *watcher,
+                    glong      timeout)
+{
+    watcher->priv->watchdog_timer_id = g_timeout_add (timeout,
+                                       (GSourceFunc)watchdog_timer,
+                                       watcher);
+}
+
+static void
+gs_watcher_get_property (GObject    *object,
+                         guint       prop_id,
+                         GValue     *value,
+                         GParamSpec *pspec)
+{
+    GSWatcher *self;
+
+    self = GS_WATCHER (object);
+
+    switch (prop_id)
+    {
+    case PROP_STATUS_MESSAGE:
+        g_value_set_string (value, self->priv->status_message);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        break;
+    }
+}
+
+static void
+set_status_text (GSWatcher  *watcher,
+                 const char *text)
+{
+    g_free (watcher->priv->status_message);
+
+    watcher->priv->status_message = g_strdup (text);
+    g_object_notify (G_OBJECT (watcher), "status-message");
+}
+
+static void
+gs_watcher_set_property (GObject          *object,
+                         guint             prop_id,
+                         const GValue     *value,
+                         GParamSpec       *pspec)
+{
+    GSWatcher *self;
+
+    self = GS_WATCHER (object);
+
+    switch (prop_id)
+    {
+    case PROP_STATUS_MESSAGE:
+        set_status_text (self, g_value_get_string (value));
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        break;
+    }
+}
+
+static void
+gs_watcher_class_init (GSWatcherClass *klass)
+{
+    GObjectClass   *object_class = G_OBJECT_CLASS (klass);
+
+    object_class->finalize = gs_watcher_finalize;
+    object_class->get_property = gs_watcher_get_property;
+    object_class->set_property = gs_watcher_set_property;
+
+    g_object_class_install_property (object_class,
+                                     PROP_STATUS_MESSAGE,
+                                     g_param_spec_string ("status-message",
+                                             NULL,
+                                             NULL,
+                                             NULL,
+                                             G_PARAM_READWRITE));
+
+    signals [IDLE_CHANGED] =
+        g_signal_new ("idle-changed",
+                      G_TYPE_FROM_CLASS (object_class),
+                      G_SIGNAL_RUN_LAST,
+                      G_STRUCT_OFFSET (GSWatcherClass, idle_changed),
+                      NULL,
+                      NULL,
+                      gs_marshal_BOOLEAN__BOOLEAN,
+                      G_TYPE_BOOLEAN,
+                      1, G_TYPE_BOOLEAN);
+    signals [IDLE_NOTICE_CHANGED] =
+        g_signal_new ("idle-notice-changed",
+                      G_TYPE_FROM_CLASS (object_class),
+                      G_SIGNAL_RUN_LAST,
+                      G_STRUCT_OFFSET (GSWatcherClass, idle_notice_changed),
+                      NULL,
+                      NULL,
+                      gs_marshal_BOOLEAN__BOOLEAN,
+                      G_TYPE_BOOLEAN,
+                      1, G_TYPE_BOOLEAN);
+
+    g_type_class_add_private (klass, sizeof (GSWatcherPrivate));
+}
+
+static gboolean
+_gs_watcher_set_session_idle_notice (GSWatcher *watcher,
+                                     gboolean   in_effect)
+{
+    gboolean res;
+
+    res = FALSE;
+
+    if (in_effect != watcher->priv->idle_notice)
+    {
+
+        g_signal_emit (watcher, signals [IDLE_NOTICE_CHANGED], 0, in_effect, &res);
+        if (res)
+        {
+            gs_debug ("Changing idle notice state: %d", in_effect);
+
+            watcher->priv->idle_notice = in_effect;
+        }
+        else
+        {
+            gs_debug ("Idle notice signal not handled: %d", in_effect);
+        }
+    }
+
+    return res;
+}
+
+static gboolean
+_gs_watcher_set_session_idle (GSWatcher *watcher,
+                              gboolean   is_idle)
+{
+    gboolean res;
+
+    res = FALSE;
+
+    if (is_idle != watcher->priv->idle)
+    {
+
+        g_signal_emit (watcher, signals [IDLE_CHANGED], 0, is_idle, &res);
+        if (res)
+        {
+            gs_debug ("Changing idle state: %d", is_idle);
+
+            watcher->priv->idle = is_idle;
+        }
+        else
+        {
+            gs_debug ("Idle changed signal not handled: %d", is_idle);
+        }
+    }
+
+    return res;
+}
+
+gboolean
+gs_watcher_get_active (GSWatcher *watcher)
+{
+    gboolean active;
+
+    g_return_val_if_fail (GS_IS_WATCHER (watcher), FALSE);
+
+    active = watcher->priv->active;
+
+    return active;
+}
+
+static void
+_gs_watcher_reset_state (GSWatcher *watcher)
+{
+    watcher->priv->idle = FALSE;
+    watcher->priv->idle_notice = FALSE;
+}
+
+static gboolean
+_gs_watcher_set_active_internal (GSWatcher *watcher,
+                                 gboolean   active)
+{
+    if (active != watcher->priv->active)
+    {
+        /* reset state */
+        _gs_watcher_reset_state (watcher);
+
+        watcher->priv->active = active;
+    }
+
+    return TRUE;
+}
+
+gboolean
+gs_watcher_set_active (GSWatcher *watcher,
+                       gboolean   active)
+{
+    g_return_val_if_fail (GS_IS_WATCHER (watcher), FALSE);
+
+    gs_debug ("turning watcher: %s", active ? "ON" : "OFF");
+
+    if (watcher->priv->active == active)
+    {
+        gs_debug ("Idle detection is already %s",
+                  active ? "active" : "inactive");
+        return FALSE;
+    }
+
+    if (! watcher->priv->enabled)
+    {
+        gs_debug ("Idle detection is disabled, cannot activate");
+        return FALSE;
+    }
+
+    return _gs_watcher_set_active_internal (watcher, active);
+}
+
+gboolean
+gs_watcher_set_enabled (GSWatcher *watcher,
+                        gboolean   enabled)
+{
+    g_return_val_if_fail (GS_IS_WATCHER (watcher), FALSE);
+
+    if (watcher->priv->enabled != enabled)
+    {
+        gboolean is_active = gs_watcher_get_active (watcher);
+
+        watcher->priv->enabled = enabled;
+
+        /* if we are disabling the watcher and we are
+           active shut it down */
+        if (! enabled && is_active)
+        {
+            _gs_watcher_set_active_internal (watcher, FALSE);
+        }
+    }
+
+    return TRUE;
+}
+
+gboolean
+gs_watcher_get_enabled (GSWatcher *watcher)
+{
+    gboolean enabled;
+
+    g_return_val_if_fail (GS_IS_WATCHER (watcher), FALSE);
+
+    enabled = watcher->priv->enabled;
+
+    return enabled;
+}
+
+static gboolean
+on_idle_timeout (GSWatcher *watcher)
+{
+    gboolean res;
+
+    res = _gs_watcher_set_session_idle (watcher, TRUE);
+
+    _gs_watcher_set_session_idle_notice (watcher, FALSE);
+
+    /* try again if we failed i guess */
+    return !res;
+}
+
+static void
+set_status (GSWatcher *watcher,
+            guint      status)
+{
+    gboolean res;
+    gboolean is_idle;
+
+    if (! watcher->priv->active)
+    {
+        gs_debug ("GSWatcher: not active, ignoring status changes");
+        return;
+    }
+
+    is_idle = (status == 3);
+
+    if (!is_idle && !watcher->priv->idle_notice)
+    {
+        /* no change in idleness */
+        return;
+    }
+
+    if (is_idle)
+    {
+        res = _gs_watcher_set_session_idle_notice (watcher, is_idle);
+        /* queue an activation */
+        if (watcher->priv->idle_id > 0)
+        {
+            g_source_remove (watcher->priv->idle_id);
+        }
+        watcher->priv->idle_id = g_timeout_add (watcher->priv->delta_notice_timeout,
+                                                (GSourceFunc)on_idle_timeout,
+                                                watcher);
+    }
+    else
+    {
+        /* cancel notice too */
+        if (watcher->priv->idle_id > 0)
+        {
+            g_source_remove (watcher->priv->idle_id);
+        }
+        res = _gs_watcher_set_session_idle (watcher, FALSE);
+        res = _gs_watcher_set_session_idle_notice (watcher, FALSE);
+    }
+}
+
+static void
+on_presence_status_changed (DBusGProxy    *presence_proxy,
+                            guint          status,
+                            GSWatcher     *watcher)
+{
+    set_status (watcher, status);
+}
+
+static void
+on_presence_status_text_changed (DBusGProxy    *presence_proxy,
+                                 const char    *status_text,
+                                 GSWatcher     *watcher)
+{
+    set_status_text (watcher, status_text);
+}
+
+static gboolean
+connect_presence_watcher (GSWatcher *watcher)
+{
+    DBusGConnection   *bus;
+    GError            *error;
+    gboolean           ret;
+
+    ret = FALSE;
+
+    error = NULL;
+    bus = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
+    if (bus == NULL)
+    {
+        g_warning ("Unable to get session bus: %s", error->message);
+        g_error_free (error);
+        goto done;
+    }
+
+    error = NULL;
+    watcher->priv->presence_proxy = dbus_g_proxy_new_for_name_owner (bus,
+                                    "org.mate.SessionManager",
+                                    "/org/mate/SessionManager/Presence",
+                                    "org.mate.SessionManager.Presence",
+                                    &error);
+    if (watcher->priv->presence_proxy != NULL)
+    {
+        DBusGProxy *proxy;
+
+        dbus_g_proxy_add_signal (watcher->priv->presence_proxy,
+                                 "StatusChanged",
+                                 G_TYPE_UINT,
+                                 G_TYPE_INVALID);
+        dbus_g_proxy_connect_signal (watcher->priv->presence_proxy,
+                                     "StatusChanged",
+                                     G_CALLBACK (on_presence_status_changed),
+                                     watcher,
+                                     NULL);
+        dbus_g_proxy_add_signal (watcher->priv->presence_proxy,
+                                 "StatusTextChanged",
+                                 G_TYPE_STRING,
+                                 G_TYPE_INVALID);
+        dbus_g_proxy_connect_signal (watcher->priv->presence_proxy,
+                                     "StatusTextChanged",
+                                     G_CALLBACK (on_presence_status_text_changed),
+                                     watcher,
+                                     NULL);
+
+        proxy = dbus_g_proxy_new_from_proxy (watcher->priv->presence_proxy,
+                                             "org.freedesktop.DBus.Properties",
+                                             "/org/mate/SessionManager/Presence");
+        if (proxy != NULL)
+        {
+            guint       status;
+            const char *status_text;
+            GValue      value = { 0, };
+
+            status = 0;
+            status_text = NULL;
+
+            error = NULL;
+            dbus_g_proxy_call (proxy,
+                               "Get",
+                               &error,
+                               G_TYPE_STRING, "org.mate.SessionManager.Presence",
+                               G_TYPE_STRING, "status",
+                               G_TYPE_INVALID,
+                               G_TYPE_VALUE, &value,
+                               G_TYPE_INVALID);
+
+            if (error != NULL)
+            {
+                g_warning ("Couldn't get presence status: %s", error->message);
+                g_error_free (error);
+                goto done;
+            }
+            else
+            {
+                status = g_value_get_uint (&value);
+            }
+
+            g_value_unset (&value);
+
+            error = NULL;
+            dbus_g_proxy_call (proxy,
+                               "Get",
+                               &error,
+                               G_TYPE_STRING, "org.mate.SessionManager.Presence",
+                               G_TYPE_STRING, "status-text",
+                               G_TYPE_INVALID,
+                               G_TYPE_VALUE, &value,
+                               G_TYPE_INVALID);
+
+            if (error != NULL)
+            {
+                g_warning ("Couldn't get presence status text: %s", error->message);
+                g_error_free (error);
+            }
+            else
+            {
+                status_text = g_value_get_string (&value);
+            }
+
+            set_status (watcher, status);
+            set_status_text (watcher, status_text);
+        }
+    }
+    else
+    {
+        g_warning ("Failed to get session presence proxy: %s", error->message);
+        g_error_free (error);
+        goto done;
+    }
+
+    ret = TRUE;
+
+done:
+    return ret;
+}
+
+static void
+gs_watcher_init (GSWatcher *watcher)
+{
+    watcher->priv = GS_WATCHER_GET_PRIVATE (watcher);
+
+    watcher->priv->enabled = TRUE;
+    watcher->priv->active = FALSE;
+
+    connect_presence_watcher (watcher);
+
+    /* time before idle signal to send notice signal */
+    watcher->priv->delta_notice_timeout = 10000;
+
+    add_watchdog_timer (watcher, 600000);
+}
+
+static void
+gs_watcher_finalize (GObject *object)
+{
+    GSWatcher *watcher;
+
+    g_return_if_fail (object != NULL);
+    g_return_if_fail (GS_IS_WATCHER (object));
+
+    watcher = GS_WATCHER (object);
+
+    g_return_if_fail (watcher->priv != NULL);
+
+    remove_watchdog_timer (watcher);
+
+    if (watcher->priv->idle_id > 0)
+    {
+        g_source_remove (watcher->priv->idle_id);
+    }
+
+    watcher->priv->active = FALSE;
+
+    if (watcher->priv->presence_proxy != NULL)
+    {
+        g_object_unref (watcher->priv->presence_proxy);
+    }
+
+    g_free (watcher->priv->status_message);
+
+    G_OBJECT_CLASS (gs_watcher_parent_class)->finalize (object);
+}
+
+/* Figuring out what the appropriate XSetScreenSaver() parameters are
+   (one wouldn't expect this to be rocket science.)
+*/
+static void
+disable_builtin_screensaver (GSWatcher *watcher,
+                             gboolean   unblank_screen)
+{
+    int current_server_timeout, current_server_interval;
+    int current_prefer_blank,   current_allow_exp;
+    int desired_server_timeout, desired_server_interval;
+    int desired_prefer_blank,   desired_allow_exp;
+
+    XGetScreenSaver (GDK_DISPLAY (),
+                     &current_server_timeout,
+                     &current_server_interval,
+                     &current_prefer_blank,
+                     &current_allow_exp);
+
+    desired_server_timeout  = current_server_timeout;
+    desired_server_interval = current_server_interval;
+    desired_prefer_blank    = current_prefer_blank;
+    desired_allow_exp       = current_allow_exp;
+
+    desired_server_interval = 0;
+
+    /* I suspect (but am not sure) that DontAllowExposures might have
+       something to do with powering off the monitor as well, at least
+       on some systems that don't support XDPMS?  Who know... */
+    desired_allow_exp = AllowExposures;
+
+    /* When we're not using an extension, set the server-side timeout to 0,
+       so that the server never gets involved with screen blanking, and we
+       do it all ourselves.  (However, when we *are* using an extension,
+       we tell the server when to notify us, and rather than blanking the
+       screen, the server will send us an X event telling us to blank.)
+    */
+    desired_server_timeout = 0;
+
+    if (desired_server_timeout     != current_server_timeout
+            || desired_server_interval != current_server_interval
+            || desired_prefer_blank    != current_prefer_blank
+            || desired_allow_exp       != current_allow_exp)
+    {
+
+        gs_debug ("disabling server builtin screensaver:"
+                  " (xset s %d %d; xset s %s; xset s %s)",
+                  desired_server_timeout,
+                  desired_server_interval,
+                  (desired_prefer_blank ? "blank" : "noblank"),
+                  (desired_allow_exp ? "expose" : "noexpose"));
+
+        XSetScreenSaver (GDK_DISPLAY (),
+                         desired_server_timeout,
+                         desired_server_interval,
+                         desired_prefer_blank,
+                         desired_allow_exp);
+
+        XSync (GDK_DISPLAY (), FALSE);
+    }
+
+    if (unblank_screen)
+    {
+        /* Turn off the server builtin saver if it is now running. */
+        XForceScreenSaver (GDK_DISPLAY (), ScreenSaverReset);
+    }
+}
+
+
+/* This timer goes off every few minutes, whether the user is idle or not,
+   to try and clean up anything that has gone wrong.
+
+   It calls disable_builtin_screensaver() so that if xset has been used,
+   or some other program (like xlock) has messed with the XSetScreenSaver()
+   settings, they will be set back to sensible values (if a server extension
+   is in use, messing with xlock can cause the screensaver to never get a wakeup
+   event, and could cause monitor power-saving to occur, and all manner of
+   heinousness.)
+
+ */
+
+static gboolean
+watchdog_timer (GSWatcher *watcher)
+{
+
+    disable_builtin_screensaver (watcher, FALSE);
+
+    return TRUE;
+}
+
+GSWatcher *
+gs_watcher_new (void)
+{
+    GSWatcher *watcher;
+
+    watcher = g_object_new (GS_TYPE_WATCHER,
+                            NULL);
+
+    return GS_WATCHER (watcher);
+}