mirror of https://github.com/MidnightCommander/mc
136 lines
4.2 KiB
C
136 lines
4.2 KiB
C
/*
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Handle events in application.
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Interface functions: init/deinit; start/stop
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Copyright (C) 2011-2016
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Free Software Foundation, Inc.
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Written by:
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Slava Zanko <slavazanko@gmail.com>, 2011.
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This file is part of the Midnight Commander.
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The Midnight Commander is free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the License,
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or (at your option) any later version.
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The Midnight Commander is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include "lib/global.h"
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#include "lib/util.h"
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#include "lib/event.h"
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#include "internal.h"
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/*** global variables ****************************************************************************/
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/*** file scope macro definitions ****************************************************************/
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/*** file scope type declarations ****************************************************************/
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/*** file scope variables ************************************************************************/
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GTree *mc_event_grouplist = NULL;
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/*** file scope functions ************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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/*** public functions ****************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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gboolean
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mc_event_init (GError ** mcerror)
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{
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mc_return_val_if_error (mcerror, FALSE);
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if (mc_event_grouplist != NULL)
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{
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mc_propagate_error (mcerror, 0, "%s", _("Event system already initialized"));
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return FALSE;
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}
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mc_event_grouplist =
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g_tree_new_full ((GCompareDataFunc) g_ascii_strcasecmp,
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NULL, (GDestroyNotify) g_free, (GDestroyNotify) g_tree_destroy);
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if (mc_event_grouplist == NULL)
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{
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mc_propagate_error (mcerror, 0, "%s", _("Failed to initialize event system"));
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return FALSE;
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}
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return TRUE;
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}
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/* --------------------------------------------------------------------------------------------- */
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gboolean
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mc_event_deinit (GError ** mcerror)
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{
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mc_return_val_if_error (mcerror, FALSE);
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if (mc_event_grouplist == NULL)
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{
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mc_propagate_error (mcerror, 0, "%s", _("Event system not initialized"));
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return FALSE;
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}
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g_tree_destroy (mc_event_grouplist);
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mc_event_grouplist = NULL;
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return TRUE;
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}
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/* --------------------------------------------------------------------------------------------- */
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gboolean
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mc_event_mass_add (event_init_t * events, GError ** mcerror)
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{
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size_t array_index;
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mc_return_val_if_error (mcerror, FALSE);
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for (array_index = 0; events[array_index].event_group_name != NULL; array_index++)
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{
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if (!mc_event_add (events[array_index].event_group_name,
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events[array_index].event_name,
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events[array_index].cb, events[array_index].init_data, mcerror))
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{
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return FALSE;
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}
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}
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return TRUE;
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}
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/* --------------------------------------------------------------------------------------------- */
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gboolean
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mc_event_present (const gchar * event_group_name, const gchar * event_name)
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{
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GTree *event_group;
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GPtrArray *callbacks;
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if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL)
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return FALSE;
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event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
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if (event_group == NULL)
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return FALSE;
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callbacks = mc_event_get_event_by_name (event_group, event_name, FALSE, NULL);
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if (callbacks == NULL)
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return FALSE;
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return TRUE;
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}
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/* --------------------------------------------------------------------------------------------- */
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