1 files changed, 135 insertions, 0 deletions
diff --git a/lib/event/event.c b/lib/event/event.c
new file mode 100644
index 0000000..421c6c4
--- /dev/null
+++ b/lib/event/event.c
@@ -0,0 +1,135 @@
+/*
+   Handle  events in application.
+   Interface functions: init/deinit; start/stop
+
+   Copyright (C) 2011-2022
+   Free Software Foundation, Inc.
+
+   Written by:
+   Slava Zanko <slavazanko@gmail.com>, 2011.
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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 3 of the License,
+   or (at your option) any later version.
+
+   The Midnight Commander 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "lib/global.h"
+#include "lib/util.h"
+#include "lib/event.h"
+
+#include "internal.h"
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** file scope variables ************************************************************************/
+
+GTree *mc_event_grouplist = NULL;
+
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_init (GError ** mcerror)
+{
+    mc_return_val_if_error (mcerror, FALSE);
+
+    if (mc_event_grouplist != NULL)
+    {
+        mc_propagate_error (mcerror, 0, "%s", _("Event system already initialized"));
+        return FALSE;
+    }
+
+    mc_event_grouplist =
+        g_tree_new_full ((GCompareDataFunc) g_ascii_strcasecmp,
+                         NULL, (GDestroyNotify) g_free, (GDestroyNotify) g_tree_destroy);
+
+    if (mc_event_grouplist == NULL)
+    {
+        mc_propagate_error (mcerror, 0, "%s", _("Failed to initialize event system"));
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_deinit (GError ** mcerror)
+{
+    mc_return_val_if_error (mcerror, FALSE);
+
+    if (mc_event_grouplist == NULL)
+    {
+        mc_propagate_error (mcerror, 0, "%s", _("Event system not initialized"));
+        return FALSE;
+    }
+
+    g_tree_destroy (mc_event_grouplist);
+    mc_event_grouplist = NULL;
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_mass_add (const event_init_t * events, GError ** mcerror)
+{
+    size_t array_index;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    for (array_index = 0; events[array_index].event_group_name != NULL; array_index++)
+    {
+        if (!mc_event_add (events[array_index].event_group_name,
+                           events[array_index].event_name,
+                           events[array_index].cb, events[array_index].init_data, mcerror))
+        {
+            return FALSE;
+        }
+    }
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_present (const gchar * event_group_name, const gchar * event_name)
+{
+    GTree *event_group;
+    GPtrArray *callbacks;
+
+    if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL)
+        return FALSE;
+
+    event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
+    if (event_group == NULL)
+        return FALSE;
+
+    callbacks = mc_event_get_event_by_name (event_group, event_name, FALSE, NULL);
+    if (callbacks == NULL)
+        return FALSE;
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */