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profanity/src/plugins/callbacks.c
2019-01-22 11:31:45 +01:00

378 lines
11 KiB
C

/*
* callbacks.c
*
* Copyright (C) 2012 - 2019 James Booth <boothj5@gmail.com>
*
* This file is part of Profanity.
*
* Profanity 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.
*
* Profanity 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 Profanity. If not, see <https://www.gnu.org/licenses/>.
*
* In addition, as a special exception, the copyright holders give permission to
* link the code of portions of this program with the OpenSSL library under
* certain conditions as described in each individual source file, and
* distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all of the
* code used other than OpenSSL. If you modify file(s) with this exception, you
* may extend this exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version. If you delete this exception statement from all
* source files in the program, then also delete it here.
*
*/
#include <string.h>
#include <stdlib.h>
#include "command/cmd_defs.h"
#include "command/cmd_ac.h"
#include "plugins/callbacks.h"
#include "plugins/plugins.h"
#include "tools/autocomplete.h"
#include "tools/parser.h"
#include "ui/ui.h"
#include "ui/window_list.h"
static GHashTable *p_commands = NULL;
static GHashTable *p_timed_functions = NULL;
static GHashTable *p_window_callbacks = NULL;
static void
_free_window_callback(PluginWindowCallback *window_callback)
{
if (window_callback->callback_destroy) {
window_callback->callback_destroy(window_callback->callback);
}
free(window_callback);
}
static void
_free_window_callbacks(GHashTable *window_callbacks)
{
g_hash_table_destroy(window_callbacks);
}
static void
_free_command_help(CommandHelp *help)
{
int i = 0;
while (help->tags[i] != NULL) {
free(help->tags[i++]);
}
i = 0;
while (help->synopsis[i] != NULL) {
free(help->synopsis[i++]);
}
free(help->desc);
i = 0;
while (help->args[i] != NULL && help->args[i][0] != NULL) {
free(help->args[i][0]);
free(help->args[i][1]);
i++;
}
i = 0;
while (help->examples[i] != NULL) {
free(help->examples[i++]);
}
free(help);
}
static void
_free_command(PluginCommand *command)
{
if (command->callback_destroy) {
command->callback_destroy(command->callback);
}
free(command->command_name);
_free_command_help(command->help);
free(command);
}
static void
_free_command_hash(GHashTable *command_hash)
{
g_hash_table_destroy(command_hash);
}
static void
_free_timed_function(PluginTimedFunction *timed_function)
{
if (timed_function->callback_destroy) {
timed_function->callback_destroy(timed_function->callback);
}
g_timer_destroy(timed_function->timer);
free(timed_function);
}
static void
_free_timed_function_list(GList *timed_functions)
{
g_list_free_full(timed_functions, (GDestroyNotify)_free_timed_function);
}
void
callbacks_init(void)
{
p_commands = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)_free_command_hash);
p_timed_functions = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)_free_timed_function_list);
p_window_callbacks = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)_free_window_callbacks);
}
void
callbacks_remove(const char *const plugin_name)
{
GHashTable *command_hash = g_hash_table_lookup(p_commands, plugin_name);
if (command_hash) {
GList *commands = g_hash_table_get_keys(command_hash);
GList *curr = commands;
while (curr) {
char *command = curr->data;
cmd_ac_remove(command);
cmd_ac_remove_help(&command[1]);
curr = g_list_next(curr);
}
g_list_free(commands);
}
g_hash_table_remove(p_commands, plugin_name);
g_hash_table_remove(p_timed_functions, plugin_name);
GHashTable *tag_to_win_cb_hash = g_hash_table_lookup(p_window_callbacks, plugin_name);
if (tag_to_win_cb_hash) {
GList *tags = g_hash_table_get_keys(tag_to_win_cb_hash);
GList *curr = tags;
while (curr) {
wins_close_plugin(curr->data);
curr = g_list_next(curr);
}
g_list_free(tags);
}
g_hash_table_remove(p_window_callbacks, plugin_name);
}
void
callbacks_close(void)
{
g_hash_table_destroy(p_commands);
g_hash_table_destroy(p_timed_functions);
g_hash_table_destroy(p_window_callbacks);
}
void
callbacks_add_command(const char *const plugin_name, PluginCommand *command)
{
GHashTable *command_hash = g_hash_table_lookup(p_commands, plugin_name);
if (command_hash) {
g_hash_table_insert(command_hash, strdup(command->command_name), command);
} else {
command_hash = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)_free_command);
g_hash_table_insert(command_hash, strdup(command->command_name), command);
g_hash_table_insert(p_commands, strdup(plugin_name), command_hash);
}
cmd_ac_add(command->command_name);
cmd_ac_add_help(&command->command_name[1]);
}
void
callbacks_add_timed(const char *const plugin_name, PluginTimedFunction *timed_function)
{
GList *timed_function_list = g_hash_table_lookup(p_timed_functions, plugin_name);
if (timed_function_list) {
timed_function_list = g_list_append(timed_function_list, timed_function);
} else {
timed_function_list = g_list_append(timed_function_list, timed_function);
g_hash_table_insert(p_timed_functions, strdup(plugin_name), timed_function_list);
}
}
gboolean
callbacks_win_exists(const char *const plugin_name, const char *tag)
{
GHashTable *window_callbacks = g_hash_table_lookup(p_window_callbacks, plugin_name);
if (window_callbacks) {
PluginWindowCallback *cb = g_hash_table_lookup(window_callbacks, tag);
if (cb) {
return TRUE;
}
}
return FALSE;
}
void
callbacks_remove_win(const char *const plugin_name, const char *const tag)
{
GHashTable *window_callbacks = g_hash_table_lookup(p_window_callbacks, plugin_name);
if (window_callbacks) {
g_hash_table_remove(window_callbacks, tag);
}
}
void
callbacks_add_window_handler(const char *const plugin_name, const char *tag, PluginWindowCallback *window_callback)
{
GHashTable *window_callbacks = g_hash_table_lookup(p_window_callbacks, plugin_name);
if (window_callbacks) {
g_hash_table_insert(window_callbacks, strdup(tag), window_callback);
} else {
window_callbacks = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)_free_window_callback);
g_hash_table_insert(window_callbacks, strdup(tag), window_callback);
g_hash_table_insert(p_window_callbacks, strdup(plugin_name), window_callbacks);
}
}
void *
callbacks_get_window_handler(const char *tag)
{
if (p_window_callbacks) {
GList *window_callback_hashes = g_hash_table_get_values(p_window_callbacks);
GList *curr_hash = window_callback_hashes;
while (curr_hash) {
GHashTable *window_callback_hash = curr_hash->data;
PluginWindowCallback *callback = g_hash_table_lookup(window_callback_hash, tag);
if (callback) {
g_list_free(window_callback_hashes);
return callback;
}
curr_hash = g_list_next(curr_hash);
}
g_list_free(window_callback_hashes);
return NULL;
} else {
return NULL;
}
}
gboolean
plugins_run_command(const char * const input)
{
gchar **split = g_strsplit(input, " ", -1);
GList *command_hashes = g_hash_table_get_values(p_commands);
GList *curr_hash = command_hashes;
while (curr_hash) {
GHashTable *command_hash = curr_hash->data;
PluginCommand *command = g_hash_table_lookup(command_hash, split[0]);
if (command) {
gboolean result;
gchar **args = parse_args_with_freetext(input, command->min_args, command->max_args, &result);
if (result == FALSE) {
ui_invalid_command_usage(command->command_name, NULL);
g_strfreev(split);
g_list_free(command_hashes);
return TRUE;
} else {
command->callback_exec(command, args);
g_strfreev(split);
g_strfreev(args);
g_list_free(command_hashes);
return TRUE;
}
}
curr_hash = g_list_next(curr_hash);
}
g_list_free(command_hashes);
g_strfreev(split);
return FALSE;
}
CommandHelp*
plugins_get_help(const char *const cmd)
{
GList *command_hashes = g_hash_table_get_values(p_commands);
GList *curr_hash = command_hashes;
while (curr_hash) {
GHashTable *command_hash = curr_hash->data;
PluginCommand *command = g_hash_table_lookup(command_hash, cmd);
if (command) {
g_list_free(command_hashes);
return command->help;
}
curr_hash = g_list_next(curr_hash);
}
g_list_free(command_hashes);
return NULL;
}
void
plugins_run_timed(void)
{
GList *timed_functions_lists = g_hash_table_get_values(p_timed_functions);
GList *curr_list = timed_functions_lists;
while (curr_list) {
GList *timed_function_list = curr_list->data;
GList *curr = timed_function_list;
while (curr) {
PluginTimedFunction *timed_function = curr->data;
gdouble elapsed = g_timer_elapsed(timed_function->timer, NULL);
if (timed_function->interval_seconds > 0 && elapsed >= timed_function->interval_seconds) {
timed_function->callback_exec(timed_function);
g_timer_start(timed_function->timer);
}
curr = g_list_next(curr);
}
curr_list = g_list_next(curr_list);
}
g_list_free(timed_functions_lists);
}
GList*
plugins_get_command_names(void)
{
GList *result = NULL;
GList *command_hashes = g_hash_table_get_values(p_commands);
GList *curr_hash = command_hashes;
while (curr_hash) {
GHashTable *command_hash = curr_hash->data;
GList *commands = g_hash_table_get_keys(command_hash);
GList *curr = commands;
while (curr) {
char *command = curr->data;
result = g_list_append(result, command);
curr = g_list_next(curr);
}
g_list_free(commands);
curr_hash = g_list_next(curr_hash);
}
g_list_free(command_hashes);
return result;
}