Add pointer/keyboard abstract classes

2011-06-11 19:04:58 +02:00
parent 3def650a93
commit e800da2bca
7 changed files with 604 additions and 0 deletions
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -0,0 +1,195 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Input device abstraction */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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.
+ */
+
+#include <config.h>
+#include "device.h"
+
+G_DEFINE_ABSTRACT_TYPE (MetaDevice, meta_device, G_TYPE_OBJECT)
+
+enum {
+  PROP_0,
+  PROP_DEVICE_ID,
+  PROP_DISPLAY
+};
+
+typedef struct MetaDevicePrivate MetaDevicePrivate;
+
+struct MetaDevicePrivate
+{
+  MetaDisplay *display;
+  gint device_id;
+};
+
+static void
+meta_device_get_property (GObject    *object,
+                          guint       param_id,
+                          GValue     *value,
+                          GParamSpec *pspec)
+{
+  switch (param_id)
+    {
+    case PROP_DEVICE_ID:
+      g_value_set_int (value,
+                       meta_device_get_id (META_DEVICE (object)));
+      break;
+    case PROP_DISPLAY:
+      g_value_set_object (value,
+                          meta_device_get_display (META_DEVICE (object)));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_device_set_property (GObject      *object,
+                          guint         param_id,
+                          const GValue *value,
+                          GParamSpec   *pspec)
+{
+  MetaDevicePrivate *priv = META_DEVICE (object)->priv;
+
+  switch (param_id)
+    {
+    case PROP_DEVICE_ID:
+      priv->device_id = g_value_get_int (value);
+      break;
+    case PROP_DISPLAY:
+      priv->display = g_value_get_object (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_device_class_init (MetaDeviceClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = meta_device_get_property;
+  object_class->set_property = meta_device_set_property;
+
+  g_object_class_install_property (object_class,
+                                   PROP_DEVICE_ID,
+                                   g_param_spec_int ("device-id",
+                                                     "Device ID",
+                                                     "Device ID",
+                                                     2, G_MAXINT, 2,
+                                                     G_PARAM_READWRITE |
+                                                     G_PARAM_CONSTRUCT_ONLY));
+  g_object_class_install_property (object_class,
+                                   PROP_DISPLAY,
+                                   g_param_spec_object ("display",
+                                                        "Display",
+                                                        "Display",
+                                                        META_TYPE_DISPLAY,
+                                                        G_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT_ONLY));
+
+  g_type_class_add_private (klass, sizeof (MetaDevicePrivate));
+}
+
+static void
+meta_device_init (MetaDevice *device)
+{
+  device->priv = G_TYPE_INSTANCE_GET_PRIVATE (device,
+                                              META_TYPE_DEVICE,
+                                              MetaDevicePrivate);
+}
+
+int
+meta_device_get_id (MetaDevice *device)
+{
+  MetaDevicePrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE (device), 0);
+
+  priv = device->priv;
+  return priv->device_id;
+}
+
+MetaDisplay *
+meta_device_get_display (MetaDevice *device)
+{
+  MetaDevicePrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE (device), NULL);
+
+  priv = device->priv;
+  return priv->display;
+}
+
+void
+meta_device_allow_events (MetaDevice  *device,
+                          int          mode,
+                          Time         time)
+{
+  MetaDeviceClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE (device));
+
+  klass = META_DEVICE_GET_CLASS (device);
+
+  if (klass->allow_events)
+    (klass->allow_events) (device, mode, time);
+}
+
+gboolean
+meta_device_grab (MetaDevice *device,
+                  Window      xwindow,
+                  guint       evmask,
+                  MetaCursor  cursor,
+                  gboolean    owner_events,
+                  gboolean    sync,
+                  Time        time)
+{
+  MetaDeviceClass *klass;
+
+  g_return_val_if_fail (META_IS_DEVICE (device), FALSE);
+  g_return_val_if_fail (xwindow != None, FALSE);
+
+  klass = META_DEVICE_GET_CLASS (device);
+
+  if (!klass->grab)
+    return FALSE;
+
+  return (klass->grab) (device, xwindow, evmask, cursor,
+                        owner_events, sync, time);
+}
+
+void
+meta_device_ungrab (MetaDevice *device,
+                    Time        time)
+{
+  MetaDeviceClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE (device));
+
+  klass = META_DEVICE_GET_CLASS (device);
+
+  if (klass->ungrab)
+    (klass->ungrab) (device, time);
+}