2f4a68c8c3
The order and way include macros were structured was chaotic, with no real common thread between files. Try to tidy up the mess with some common scheme, to make things look less messy.
280 lines
7.5 KiB
C
280 lines
7.5 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2017 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program 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.
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*
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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
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include "config.h"
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#include "backends/meta-orientation-manager.h"
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#include <gio/gio.h>
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enum
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{
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ORIENTATION_CHANGED,
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N_SIGNALS
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};
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static guint signals[N_SIGNALS];
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struct _MetaOrientationManager
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{
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GObject parent_instance;
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GCancellable *cancellable;
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guint iio_watch_id;
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GDBusProxy *iio_proxy;
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MetaOrientation prev_orientation;
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MetaOrientation curr_orientation;
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GSettings *settings;
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};
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G_DEFINE_TYPE (MetaOrientationManager, meta_orientation_manager, G_TYPE_OBJECT)
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#define CONF_SCHEMA "org.gnome.settings-daemon.peripherals.touchscreen"
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#define ORIENTATION_LOCK_KEY "orientation-lock"
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static MetaOrientation
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orientation_from_string (const char *orientation)
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{
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if (g_strcmp0 (orientation, "normal") == 0)
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return META_ORIENTATION_NORMAL;
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if (g_strcmp0 (orientation, "bottom-up") == 0)
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return META_ORIENTATION_BOTTOM_UP;
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if (g_strcmp0 (orientation, "left-up") == 0)
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return META_ORIENTATION_LEFT_UP;
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if (g_strcmp0 (orientation, "right-up") == 0)
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return META_ORIENTATION_RIGHT_UP;
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return META_ORIENTATION_UNDEFINED;
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}
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static void
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read_iio_proxy (MetaOrientationManager *self)
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{
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gboolean has_accel = FALSE;
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GVariant *v;
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self->curr_orientation = META_ORIENTATION_UNDEFINED;
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if (!self->iio_proxy)
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return;
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v = g_dbus_proxy_get_cached_property (self->iio_proxy, "HasAccelerometer");
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if (v)
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{
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has_accel = g_variant_get_boolean (v);
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g_variant_unref (v);
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}
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if (has_accel)
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{
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v = g_dbus_proxy_get_cached_property (self->iio_proxy, "AccelerometerOrientation");
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if (v)
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{
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self->curr_orientation = orientation_from_string (g_variant_get_string (v, NULL));
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g_variant_unref (v);
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}
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}
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}
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static void
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sync_state (MetaOrientationManager *self)
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{
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read_iio_proxy (self);
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if (self->prev_orientation == self->curr_orientation)
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return;
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self->prev_orientation = self->curr_orientation;
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if (self->curr_orientation == META_ORIENTATION_UNDEFINED)
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return;
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if (g_settings_get_boolean (self->settings, ORIENTATION_LOCK_KEY))
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return;
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g_signal_emit (self, signals[ORIENTATION_CHANGED], 0);
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}
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static void
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orientation_lock_changed (GSettings *settings,
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gchar *key,
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gpointer user_data)
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{
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MetaOrientationManager *self = user_data;
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sync_state (self);
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}
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static void
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iio_properties_changed (GDBusProxy *proxy,
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GVariant *changed_properties,
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GStrv invalidated_properties,
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gpointer user_data)
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{
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MetaOrientationManager *self = user_data;
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sync_state (self);
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}
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static void
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accelerometer_claimed (GObject *source,
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GAsyncResult *res,
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gpointer user_data)
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{
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MetaOrientationManager *self = user_data;
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GVariant *v;
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GError *error = NULL;
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v = g_dbus_proxy_call_finish (G_DBUS_PROXY (source), res, &error);
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if (!v)
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{
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if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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g_warning ("Failed to claim accelerometer: %s", error->message);
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g_error_free (error);
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return;
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}
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g_variant_unref (v);
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sync_state (self);
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}
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static void
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iio_proxy_ready (GObject *source,
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GAsyncResult *res,
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gpointer user_data)
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{
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MetaOrientationManager *self = user_data;
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GDBusProxy *proxy;
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GError *error = NULL;
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proxy = g_dbus_proxy_new_finish (res, &error);
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if (!proxy)
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{
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if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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g_warning ("Failed to obtain IIO DBus proxy: %s", error->message);
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g_error_free (error);
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return;
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}
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self->iio_proxy = proxy;
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g_signal_connect_object (self->iio_proxy, "g-properties-changed",
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G_CALLBACK (iio_properties_changed), self, 0);
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g_dbus_proxy_call (self->iio_proxy,
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"ClaimAccelerometer",
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NULL,
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G_DBUS_CALL_FLAGS_NONE,
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-1,
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self->cancellable,
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accelerometer_claimed,
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self);
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}
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static void
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iio_sensor_appeared_cb (GDBusConnection *connection,
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const gchar *name,
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const gchar *name_owner,
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gpointer user_data)
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{
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MetaOrientationManager *self = user_data;
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self->cancellable = g_cancellable_new ();
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g_dbus_proxy_new (connection,
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G_DBUS_PROXY_FLAGS_NONE,
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NULL,
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"net.hadess.SensorProxy",
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"/net/hadess/SensorProxy",
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"net.hadess.SensorProxy",
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self->cancellable,
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iio_proxy_ready,
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self);
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}
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static void
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iio_sensor_vanished_cb (GDBusConnection *connection,
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const gchar *name,
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gpointer user_data)
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{
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MetaOrientationManager *self = user_data;
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g_cancellable_cancel (self->cancellable);
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g_clear_object (&self->cancellable);
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g_clear_object (&self->iio_proxy);
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sync_state (self);
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}
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static void
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meta_orientation_manager_init (MetaOrientationManager *self)
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{
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self->iio_watch_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM,
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"net.hadess.SensorProxy",
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G_BUS_NAME_WATCHER_FLAGS_NONE,
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iio_sensor_appeared_cb,
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iio_sensor_vanished_cb,
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self,
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NULL);
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self->settings = g_settings_new (CONF_SCHEMA);
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g_signal_connect_object (self->settings, "changed::"ORIENTATION_LOCK_KEY,
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G_CALLBACK (orientation_lock_changed), self, 0);
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sync_state (self);
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}
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static void
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meta_orientation_manager_finalize (GObject *object)
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{
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MetaOrientationManager *self = META_ORIENTATION_MANAGER (object);
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g_cancellable_cancel (self->cancellable);
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g_clear_object (&self->cancellable);
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g_bus_unwatch_name (self->iio_watch_id);
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g_clear_object (&self->iio_proxy);
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g_clear_object (&self->settings);
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G_OBJECT_CLASS (meta_orientation_manager_parent_class)->finalize (object);
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}
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static void
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meta_orientation_manager_class_init (MetaOrientationManagerClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = meta_orientation_manager_finalize;
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signals[ORIENTATION_CHANGED] =
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g_signal_new ("orientation-changed",
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G_TYPE_FROM_CLASS (gobject_class),
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G_SIGNAL_RUN_LAST,
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0,
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NULL, NULL, NULL,
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G_TYPE_NONE, 0);
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}
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MetaOrientation
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meta_orientation_manager_get_orientation (MetaOrientationManager *self)
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{
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return self->curr_orientation;
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}
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