318 lines
8.7 KiB
C
318 lines
8.7 KiB
C
/*
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* wee-hook-focus.c - WeeChat focus hook
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*
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* Copyright (C) 2003-2018 Sébastien Helleu <flashcode@flashtux.org>
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*
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* This file is part of WeeChat, the extensible chat client.
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*
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* WeeChat is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* WeeChat 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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*
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* You should have received a copy of the GNU General Public License
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* along with WeeChat. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include "../weechat.h"
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#include "../wee-hashtable.h"
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#include "../wee-hook.h"
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#include "../wee-infolist.h"
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#include "../wee-log.h"
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#include "../wee-string.h"
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/*
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* Hooks a focus.
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*
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* Returns pointer to new hook, NULL if error.
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*/
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struct t_hook *
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hook_focus (struct t_weechat_plugin *plugin,
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const char *area,
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t_hook_callback_focus *callback,
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const void *callback_pointer,
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void *callback_data)
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{
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struct t_hook *new_hook;
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struct t_hook_focus *new_hook_focus;
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int priority;
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const char *ptr_area;
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if (!area || !area[0] || !callback)
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return NULL;
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new_hook = malloc (sizeof (*new_hook));
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if (!new_hook)
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return NULL;
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new_hook_focus = malloc (sizeof (*new_hook_focus));
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if (!new_hook_focus)
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{
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free (new_hook);
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return NULL;
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}
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hook_get_priority_and_name (area, &priority, &ptr_area);
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hook_init_data (new_hook, plugin, HOOK_TYPE_FOCUS, priority,
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callback_pointer, callback_data);
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new_hook->hook_data = new_hook_focus;
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new_hook_focus->callback = callback;
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new_hook_focus->area = strdup ((ptr_area) ? ptr_area : area);
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hook_add_to_list (new_hook);
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return new_hook;
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}
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/*
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* Adds keys of a hashtable into another.
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*/
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void
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hook_focus_hashtable_map_cb (void *data,
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struct t_hashtable *hashtable,
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const void *key, const void *value)
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{
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struct t_hashtable *hashtable1;
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/* make C compiler happy */
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(void) hashtable;
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hashtable1 = (struct t_hashtable *)data;
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if (hashtable1 && key && value)
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hashtable_set (hashtable1, (const char *)key, (const char *)value);
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}
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/*
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* Adds keys of a hashtable into another (adding suffix "2" to keys).
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*/
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void
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hook_focus_hashtable_map2_cb (void *data,
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struct t_hashtable *hashtable,
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const void *key, const void *value)
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{
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struct t_hashtable *hashtable1;
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int length;
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char *key2;
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/* make C compiler happy */
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(void) hashtable;
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hashtable1 = (struct t_hashtable *)data;
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length = strlen ((const char *)key) + 1 + 1;
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key2 = malloc (length);
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if (key2)
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{
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snprintf (key2, length, "%s2", (const char *)key);
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if (hashtable1 && key && value)
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hashtable_set (hashtable1, key2, (const char *)value);
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free (key2);
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}
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}
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/*
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* Gets data for focus on (x,y) on screen.
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*
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* Argument hashtable_focus2 is not NULL only for a mouse gesture (it's for
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* point where mouse button has been released).
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*/
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struct t_hashtable *
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hook_focus_get_data (struct t_hashtable *hashtable_focus1,
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struct t_hashtable *hashtable_focus2)
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{
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struct t_hook *ptr_hook, *next_hook;
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struct t_hashtable *hashtable1, *hashtable2, *hashtable_ret;
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const char *focus1_chat, *focus1_bar_item_name, *keys;
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char **list_keys, *new_key;
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int num_keys, i, length, focus1_is_chat;
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if (!hashtable_focus1)
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return NULL;
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focus1_chat = hashtable_get (hashtable_focus1, "_chat");
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focus1_is_chat = (focus1_chat && (strcmp (focus1_chat, "1") == 0));
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focus1_bar_item_name = hashtable_get (hashtable_focus1, "_bar_item_name");
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hashtable1 = hashtable_dup (hashtable_focus1);
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if (!hashtable1)
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return NULL;
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hashtable2 = (hashtable_focus2) ? hashtable_dup (hashtable_focus2) : NULL;
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hook_exec_start ();
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ptr_hook = weechat_hooks[HOOK_TYPE_FOCUS];
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while (ptr_hook)
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{
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next_hook = ptr_hook->next_hook;
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if (!ptr_hook->deleted
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&& !ptr_hook->running
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&& ((focus1_is_chat
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&& (strcmp (HOOK_FOCUS(ptr_hook, area), "chat") == 0))
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|| (focus1_bar_item_name && focus1_bar_item_name[0]
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&& (strcmp (HOOK_FOCUS(ptr_hook, area), focus1_bar_item_name) == 0))))
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{
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/* run callback for focus #1 */
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ptr_hook->running = 1;
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hashtable_ret = (HOOK_FOCUS(ptr_hook, callback))
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(ptr_hook->callback_pointer,
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ptr_hook->callback_data,
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hashtable1);
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ptr_hook->running = 0;
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if (hashtable_ret)
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{
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if (hashtable_ret != hashtable1)
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{
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/*
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* add keys of hashtable_ret into hashtable1
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* and destroy it
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*/
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hashtable_map (hashtable_ret,
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&hook_focus_hashtable_map_cb,
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hashtable1);
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hashtable_free (hashtable_ret);
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}
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}
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/* run callback for focus #2 */
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if (hashtable2)
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{
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ptr_hook->running = 1;
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hashtable_ret = (HOOK_FOCUS(ptr_hook, callback))
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(ptr_hook->callback_pointer,
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ptr_hook->callback_data,
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hashtable2);
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ptr_hook->running = 0;
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if (hashtable_ret)
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{
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if (hashtable_ret != hashtable2)
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{
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/*
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* add keys of hashtable_ret into hashtable2
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* and destroy it
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*/
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hashtable_map (hashtable_ret,
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&hook_focus_hashtable_map_cb,
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hashtable2);
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hashtable_free (hashtable_ret);
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}
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}
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}
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}
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ptr_hook = next_hook;
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}
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if (hashtable2)
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{
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hashtable_map (hashtable2,
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&hook_focus_hashtable_map2_cb, hashtable1);
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hashtable_free (hashtable2);
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}
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else
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{
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keys = hashtable_get_string (hashtable1, "keys");
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if (keys)
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{
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list_keys = string_split (keys, ",", 0, 0, &num_keys);
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if (list_keys)
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{
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for (i = 0; i < num_keys; i++)
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{
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length = strlen (list_keys[i]) + 1 + 1;
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new_key = malloc (length);
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if (new_key)
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{
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snprintf (new_key, length, "%s2", list_keys[i]);
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hashtable_set (hashtable1, new_key,
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hashtable_get (hashtable1,
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list_keys[i]));
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free (new_key);
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}
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}
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string_free_split (list_keys);
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}
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}
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}
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hook_exec_end ();
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return hashtable1;
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}
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/*
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* Frees data in a focus hook.
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*/
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void
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hook_focus_free_data (struct t_hook *hook)
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{
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if (!hook || !hook->hook_data)
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return;
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if (HOOK_FOCUS(hook, area))
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{
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free (HOOK_FOCUS(hook, area));
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HOOK_FOCUS(hook, area) = NULL;
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}
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free (hook->hook_data);
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hook->hook_data = NULL;
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}
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/*
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* Adds focus hook data in the infolist item.
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*
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* Returns:
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* 1: OK
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* 0: error
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*/
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int
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hook_focus_add_to_infolist (struct t_infolist_item *item,
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struct t_hook *hook)
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{
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if (!item || !hook || !hook->hook_data)
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return 0;
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if (!infolist_new_var_pointer (item, "callback", HOOK_FOCUS(hook, callback)))
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return 0;
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if (!infolist_new_var_string (item, "area", HOOK_FOCUS(hook, area)))
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return 0;
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return 1;
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}
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/*
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* Prints focus hook data in WeeChat log file (usually for crash dump).
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*/
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void
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hook_focus_print_log (struct t_hook *hook)
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{
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if (!hook || !hook->hook_data)
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return;
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log_printf (" focus data:");
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log_printf (" callback. . . . . . . : 0x%lx", HOOK_FOCUS(hook, callback));
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log_printf (" area. . . . . . . . . : '%s'", HOOK_FOCUS(hook, area));
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}
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