add TpSimpleHandler (fdo #27873)

1 files changed, 347 insertions, 0 deletions

diff --git a/telepathy-glib/simple-handler.c b/telepathy-glib/simple-handler.c
new file mode 100644
index 000000000..ede56b305
--- /dev/null
+++ b/telepathy-glib/simple-handler.c
@@ -0,0 +1,347 @@
+/*
+ * Simple implementation of an Handler
+ *
+ * Copyright © 2010 Collabora Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/**
+ * SECTION: simple-handler
+ * @title: TpSimpleHandler
+ * @short_description: a subclass of #TpBaseClient implementing
+ * a simple Handler
+ *
+ * This class makes it easier to write #TpSvcClient implementing the
+ * TpSvcClientHandler interface.
+ *
+ * A typical simple handler would look liks this:
+ * |[
+ * static void
+ * my_handle_channels (TpSimpleHandler *self,
+ *    TpAccount *account,
+ *    TpConnection *connection,
+ *    GList *channels,
+ *    GList *requests_satisfied,
+ *    gint64 user_action_time,
+ *    GList *requests,
+ *    TpHandleChannelsContext *context,
+ *    gpointer user_data)
+ * {
+ *  /<!-- -->* start handling the channels here *<!-- -->/
+ *
+ *  tp_handle_channels_context_accept (context);
+ * }
+ *
+ * client = tp_simple_handler_new (dbus, FALSE, FALSE, "MyHandler", FALSE,
+ *    my_handle_channels, user_data);
+ *
+ * tp_base_client_take_handler_filter (client, tp_asv_new (
+ *      TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING, TP_IFACE_CHANNEL_TYPE_TEXT,
+ *      TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
+ *      NULL));
+ *
+ * tp_base_client_register (client, NULL);
+ * ]|
+ *
+ * See examples/client/text-handler.c for a complete example.
+ */
+
+/**
+ * TpSimpleHandler:
+ *
+ * Data structure representing a simple Handler implementation.
+ *
+ * Since: 0.11.UNRELEASED
+ */
+
+/**
+ * TpSimpleHandlerClass:
+ *
+ * The class of a #TpSimpleHandler.
+ *
+ * Since: 0.11.UNRELEASED
+ */
+
+/**
+ * TpSimpleHandlerHandleChannelsImpl:
+ * @self: a #TpSimpleHandler instance
+ * @account: a #TpAccount having %TP_ACCOUNT_FEATURE_CORE prepared if possible
+ * @connection: a #TpConnection having %TP_CONNECTION_FEATURE_CORE prepared
+ * if possible
+ * @channels: (element-type TelepathyGLib.Channel): a #GList of #TpChannel,
+ *  all having %TP_CHANNEL_FEATURE_CORE prepared if possible
+ * @requests_satisfied: (element-type TelepathyGLib.ChannelRequest): a #GList of
+ * #TpChannelRequest having their object-path defined but are not guaranteed
+ * to be prepared.
+ * @user_action_time: the time at which user action occurred, or 0 if this
+ * channel is to be handled for some reason not involving user action.
+ * @context: a #TpHandleChannelsContext representing the context of this
+ *  D-Bus call
+ * @user_data: arbitrary user-supplied data passed to tp_simple_handler_new()
+ *
+ * Signature of the implementation of the HandleChannels method.
+ *
+ * This function must call either tp_handle_channels_context_accept(),
+ * tp_handle_channels_context_delay() or tp_handle_channels_context_fail()
+ * on @context before it returns.
+ *
+ * Since: 0.11.UNRELEASED
+ */
+
+#include "telepathy-glib/simple-handler.h"
+
+#define DEBUG_FLAG TP_DEBUG_CLIENT
+#include "telepathy-glib/debug-internal.h"
+
+G_DEFINE_TYPE(TpSimpleHandler, tp_simple_handler, TP_TYPE_BASE_CLIENT)
+
+enum {
+    PROP_BYPASS_APPROVAL = 1,
+    PROP_REQUESTS,
+    PROP_CALLBACK,
+    PROP_USER_DATA,
+    PROP_DESTROY,
+    N_PROPS
+};
+
+struct _TpSimpleHandlerPrivate
+{
+  TpSimpleHandlerHandleChannelsImpl callback;
+  gpointer user_data;
+  GDestroyNotify destroy;
+};
+
+static void
+tp_simple_handler_init (TpSimpleHandler *self)
+{
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, TP_TYPE_SIMPLE_HANDLER,
+      TpSimpleHandlerPrivate);
+}
+
+static void
+tp_simple_handler_set_property (GObject *object,
+    guint property_id,
+    const GValue *value,
+    GParamSpec *pspec)
+{
+  TpBaseClient *base = TP_BASE_CLIENT (object);
+  TpSimpleHandler *self = TP_SIMPLE_HANDLER (object);
+
+  switch (property_id)
+    {
+      case PROP_BYPASS_APPROVAL:
+        tp_base_client_set_handler_bypass_approval (base,
+            g_value_get_boolean (value));
+        break;
+
+      case PROP_REQUESTS:
+        if (g_value_get_boolean (value))
+          tp_base_client_set_handler_request_notification (base);
+        break;
+
+      case PROP_CALLBACK:
+        self->priv->callback = g_value_get_pointer (value);
+        break;
+
+      case PROP_USER_DATA:
+        self->priv->user_data = g_value_get_pointer (value);
+        break;
+
+      case PROP_DESTROY:
+        self->priv->destroy = g_value_get_pointer (value);
+        break;
+
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+        break;
+  }
+}
+
+static void
+tp_simple_handler_constructed (GObject *object)
+{
+  TpSimpleHandler *self = TP_SIMPLE_HANDLER (object);
+  void (*chain_up) (GObject *) =
+    ((GObjectClass *) tp_simple_handler_parent_class)->constructed;
+
+  g_assert (self->priv->callback != NULL);
+
+  if (chain_up != NULL)
+    chain_up (object);
+}
+
+static void
+tp_simple_handler_dispose (GObject *object)
+{
+  TpSimpleHandler *self = TP_SIMPLE_HANDLER (object);
+  void (*dispose) (GObject *) =
+    G_OBJECT_CLASS (tp_simple_handler_parent_class)->dispose;
+
+  if (self->priv->destroy != NULL)
+    {
+      self->priv->destroy (self->priv->user_data);
+      self->priv->destroy = NULL;
+    }
+
+  if (dispose != NULL)
+    dispose (object);
+}
+
+static void
+handle_channels (
+    TpBaseClient *client,
+    TpAccount *account,
+    TpConnection *connection,
+    GList *channels,
+    GList *requests_satisfied,
+    gint64 user_action_time,
+    TpHandleChannelsContext *context)
+{
+  TpSimpleHandler *self = TP_SIMPLE_HANDLER (client);
+
+  self->priv->callback (self, account, connection, channels,
+      requests_satisfied, user_action_time, context, self->priv->user_data);
+}
+
+static void
+tp_simple_handler_class_init (TpSimpleHandlerClass *cls)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (cls);
+  TpBaseClientClass *base_clt_cls = TP_BASE_CLIENT_CLASS (cls);
+  GParamSpec *param_spec;
+
+  g_type_class_add_private (cls, sizeof (TpSimpleHandlerPrivate));
+
+  object_class->set_property = tp_simple_handler_set_property;
+  object_class->constructed = tp_simple_handler_constructed;
+  object_class->dispose = tp_simple_handler_dispose;
+
+  /**
+   * TpSimpleHandler:bypass-approval:
+   *
+   * The value of the Handler.BypassApproval D-Bus property.
+   *
+   * Since: 0.11.UNRELEASED
+   */
+  param_spec = g_param_spec_boolean ("bypass-approval", "bypass approval",
+      "Handler.BypassApproval",
+      FALSE,
+      G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_BYPASS_APPROVAL,
+      param_spec);
+
+  /**
+   * TpSimpleHandler:requests:
+   *
+   * If %TRUE, the Handler will implement the Requests interface
+   *
+   * Since: 0.11.UNRELEASED
+   */
+  param_spec = g_param_spec_boolean ("requests", "requests",
+      "Requests",
+      FALSE,
+      G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_REQUESTS,
+      param_spec);
+
+  /**
+   * TpSimpleHandler:callback:
+   *
+   * The TpSimpleHandlerHandleChannelsImpl callback implementing the
+   * HandleChannels D-Bus method.
+   *
+   * This property can't be %NULL.
+   *
+   * Since: 0.11.UNRELEASED
+   */
+  param_spec = g_param_spec_pointer ("callback",
+      "Callback",
+      "Function called when HandleChannels is called",
+      G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_CALLBACK,
+      param_spec);
+
+  /**
+   * TpSimpleHandler:user-data:
+   *
+   * The user-data pointer passed to the callback implementing the
+   * HandleChannels D-Bus method.
+   *
+   * Since: 0.11.UNRELEASED
+   */
+  param_spec = g_param_spec_pointer ("user-data", "user data",
+      "pointer passed as user-data when HandleChannels is called",
+      G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_USER_DATA,
+      param_spec);
+
+  /**
+   * TpSimpleHandler:destroy:
+   *
+   * The #GDestroyNotify function called to free the user-data pointer when
+   * the #TpSimpleHandler is destroyed.
+   *
+   * Since: 0.11.UNRELEASED
+   */
+  param_spec = g_param_spec_pointer ("destroy", "destroy",
+      "function called to destroy the user-data when destroying the handler",
+      G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_DESTROY,
+      param_spec);
+
+  tp_base_client_implement_handle_channels (base_clt_cls, handle_channels);
+}
+
+/**
+ * tp_simple_handler_new:
+ * @dbus: a #TpDBusDaemon object, may not be %NULL
+ * @bypass_approval: the value of the Handler.BypassApproval D-Bus property
+ * @requests: if this handler implement Requests (see
+ * tp_base_client_set_handler_bypass_approval() for details)
+ * @name: the name of the Handler (see #TpBaseClient:name: for details)
+ * @unique: the value of the TpBaseClient:uniquify-name: property
+ * @callback: the function called when HandleChannels is called
+ * @user_data: arbitrary user-supplied data passed to @callback
+ * @destroy: called with the user_data as argument, when the #TpSimpleHandler
+ * is destroyed
+ *
+ * Convenient function to create a new #TpSimpleHandler instance.
+ *
+ * Returns: (type TelepathyGLib.SimpleHandler): a new #TpSimpleHandler
+ *
+ * Since: 0.11.UNRELEASED
+ */
+TpBaseClient *
+tp_simple_handler_new (TpDBusDaemon *dbus,
+    gboolean bypass_approval,
+    gboolean requests,
+    const gchar *name,
+    gboolean unique,
+    TpSimpleHandlerHandleChannelsImpl callback,
+    gpointer user_data,
+    GDestroyNotify destroy)
+{
+  return g_object_new (TP_TYPE_SIMPLE_HANDLER,
+      "dbus-daemon", dbus,
+      "bypass-approval", bypass_approval,
+      "requests", requests,
+      "name", name,
+      "uniquify-name", unique,
+      "callback", callback,
+      "user-data", user_data,
+      "destroy", destroy,
+      NULL);
+}