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-rw-r--r--libempathy/Makefile.am2
-rw-r--r--libempathy/action-chain-internal.h47
-rw-r--r--libempathy/action-chain.c169
3 files changed, 218 insertions, 0 deletions
diff --git a/libempathy/Makefile.am b/libempathy/Makefile.am
index 48846311f..56ea9e780 100644
--- a/libempathy/Makefile.am
+++ b/libempathy/Makefile.am
@@ -28,6 +28,7 @@ BUILT_SOURCES = \
noinst_LTLIBRARIES = libempathy.la
libempathy_headers = \
+ action-chain-internal.h \
empathy-account-settings.h \
empathy-auth-factory.h \
empathy-channel-factory.h \
@@ -69,6 +70,7 @@ libempathy_headers = \
libempathy_la_SOURCES = \
$(libempathy_headers) \
+ action-chain.c \
empathy-account-settings.c \
empathy-auth-factory.c \
empathy-channel-factory.c \
diff --git a/libempathy/action-chain-internal.h b/libempathy/action-chain-internal.h
new file mode 100644
index 000000000..674cc2b06
--- /dev/null
+++ b/libempathy/action-chain-internal.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 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
+ *
+ * Authors: Cosimo Alfarano <cosimo.alfarano@collabora.co.uk>
+ */
+
+#ifndef __TPL_ACTION_CHAIN_H__
+#define __TPL_ACTION_CHAIN_H__
+
+#include <glib-object.h>
+#include <gio/gio.h>
+
+typedef struct {
+ GQueue *chain;
+ GSimpleAsyncResult *simple;
+} TplActionChain;
+
+TplActionChain *_tpl_action_chain_new_async (GObject *obj,
+ GAsyncReadyCallback cb,
+ gpointer user_data);
+void _tpl_action_chain_free (TplActionChain *self);
+typedef void (*TplPendingAction) (TplActionChain *ctx, gpointer user_data);
+void _tpl_action_chain_append (TplActionChain *self, TplPendingAction func,
+ gpointer user_data);
+void _tpl_action_chain_prepend (TplActionChain *self, TplPendingAction func,
+ gpointer user_data);
+void _tpl_action_chain_continue (TplActionChain *self);
+void _tpl_action_chain_terminate (TplActionChain *self, const GError *error);
+gpointer _tpl_action_chain_get_object (TplActionChain *self);
+gboolean _tpl_action_chain_new_finish (GObject *source,
+ GAsyncResult *result, GError **error);
+
+#endif // __TPL_ACTION_CHAIN_H__
diff --git a/libempathy/action-chain.c b/libempathy/action-chain.c
new file mode 100644
index 000000000..df792e548
--- /dev/null
+++ b/libempathy/action-chain.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2009 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
+ *
+ * Authors: Cosimo Alfarano <cosimo.alfarano@collabora.co.uk>
+ */
+
+#include "config.h"
+#include "action-chain-internal.h"
+
+typedef struct {
+ TplPendingAction action;
+ gpointer user_data;
+} TplActionLink;
+
+
+TplActionChain *
+_tpl_action_chain_new_async (GObject *obj,
+ GAsyncReadyCallback cb,
+ gpointer user_data)
+{
+ TplActionChain *ret = g_slice_new0 (TplActionChain);
+
+ ret->chain = g_queue_new ();
+ ret->simple = g_simple_async_result_new (obj, cb, user_data,
+ _tpl_action_chain_new_async);
+
+ g_object_set_data (G_OBJECT (ret->simple), "chain", ret);
+
+ return ret;
+}
+
+
+static void
+link_free (TplActionLink *l)
+{
+ g_slice_free (TplActionLink, l);
+}
+
+
+void
+_tpl_action_chain_free (TplActionChain *self)
+{
+ g_queue_foreach (self->chain, (GFunc) link_free, NULL);
+ g_queue_free (self->chain);
+ g_object_unref (self->simple);
+ g_slice_free (TplActionChain, self);
+}
+
+
+gpointer // FIXME GObject *
+_tpl_action_chain_get_object (TplActionChain *self)
+{
+ GObject *obj;
+
+ g_return_val_if_fail (self != NULL && self->simple != NULL, NULL);
+
+ obj = g_async_result_get_source_object (G_ASYNC_RESULT (self->simple));
+ g_object_unref (obj); /* don't want the extra ref */
+
+ return obj;
+}
+
+
+void
+_tpl_action_chain_prepend (TplActionChain *self,
+ TplPendingAction func,
+ gpointer user_data)
+{
+ TplActionLink *l;
+
+ l = g_slice_new0 (TplActionLink);
+ l->action = func;
+ l->user_data = user_data;
+
+ g_queue_push_head (self->chain, l);
+}
+
+
+void
+_tpl_action_chain_append (TplActionChain *self,
+ TplPendingAction func,
+ gpointer user_data)
+{
+ TplActionLink *l;
+
+ l = g_slice_new0 (TplActionLink);
+ l->action = func;
+ l->user_data = user_data;
+
+ g_queue_push_tail (self->chain, l);
+}
+
+
+void
+_tpl_action_chain_continue (TplActionChain *self)
+{
+ if (g_queue_is_empty (self->chain))
+ g_simple_async_result_complete (self->simple);
+ else
+ {
+ TplActionLink *l = g_queue_pop_head (self->chain);
+
+ l->action (self, l->user_data);
+ link_free (l);
+ }
+}
+
+
+void
+_tpl_action_chain_terminate (TplActionChain *self,
+ const GError *error)
+{
+ GSimpleAsyncResult *simple = self->simple;
+
+ g_assert (error != NULL);
+
+ g_simple_async_result_set_from_error (simple, error);
+ g_simple_async_result_complete (simple);
+}
+
+
+/**
+ * _tpl_action_chain_new_finish:
+ * @source: the #GObject pass to _tpl_action_chain_new_async()
+ * @result: the #GAsyncResult pass in callback
+ * @error: a pointer to a #GError that will be set on error, or NULL to ignore
+ *
+ * Get the result from running the action chain (%TRUE if the chain completed
+ * successfully, %FALSE with @error set if it was terminated).
+ *
+ * This function also frees the chain.
+ *
+ * Returns: %TRUE on success, %FALSE with @error set on error.
+ */
+gboolean
+_tpl_action_chain_new_finish (GObject *source,
+ GAsyncResult *result,
+ GError **error)
+{
+ TplActionChain *chain;
+
+ g_return_val_if_fail (g_simple_async_result_is_valid (result, source,
+ _tpl_action_chain_new_async), FALSE);
+
+ chain = g_object_get_data (G_OBJECT (result), "chain");
+
+ g_return_val_if_fail (chain != NULL, FALSE);
+
+ if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (result),
+ error))
+ return FALSE;
+
+ _tpl_action_chain_free (chain);
+ return TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 03:41:56 +0800