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/*
* Copyright © 2008 Julien Danjou <julien@danjou.info>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the names of the authors or
* their institutions shall not be used in advertising or otherwise to
* promote the sale, use or other dealings in this Software without
* prior written authorization from the authors.
*/
#include <stdlib.h>
#include <string.h>
#include "xcb_property.h"
xcb_get_property_cookie_t
xcb_get_any_property(xcb_connection_t *c, uint8_t del, xcb_window_t window, xcb_atom_t name, uint32_t long_len)
{
static const xcb_atom_t type = XCB_GET_PROPERTY_TYPE_ANY;
return xcb_get_property(c, del, window, name, type, 0, long_len);
}
xcb_get_property_cookie_t
xcb_get_any_property_unchecked(xcb_connection_t *c,
uint8_t del,
xcb_window_t window,
xcb_atom_t name,
uint32_t long_len)
{
return xcb_get_property_unchecked(c, del, window, name, XCB_GET_PROPERTY_TYPE_ANY, 0, long_len);
}
static int
call_handler(xcb_connection_t *c, uint8_t state, xcb_window_t window, xcb_atom_t atom, xcb_property_handler_t *h)
{
xcb_get_property_reply_t *propr = 0;
int ret;
if(state != XCB_PROPERTY_DELETE)
{
xcb_get_property_cookie_t cookie = xcb_get_any_property(c, 0, window, atom, h->long_len);
propr = xcb_get_property_reply(c, cookie, 0);
}
ret = h->handler(h->data, c, state, window, atom, propr);
free(propr);
return ret;
}
int
xcb_property_changed(xcb_property_handlers_t *prophs, uint8_t state, xcb_window_t window, xcb_atom_t atom)
{
xcb_connection_t *c = xcb_event_get_xcb_connection(xcb_property_get_event_handlers(prophs));
xcb_property_handler_node_t *cur;
for(cur = prophs->head; cur; cur = cur->next)
if(cur->name == atom)
return call_handler(c, state, window, atom, &cur->h);
if(prophs->def.handler)
return call_handler(c, state, window, atom, &prophs->def);
return 0;
}
static int
handle_property_notify_event(void *data, xcb_connection_t *c, xcb_property_notify_event_t *e)
{
xcb_property_handlers_t *prophs = data;
uint8_t state = e->state;
xcb_window_t window = e->window;
xcb_atom_t atom = e->atom;
return xcb_property_changed(prophs, state, window, atom);
}
void
xcb_property_handlers_init(xcb_property_handlers_t *prophs, xcb_event_handlers_t *evenths)
{
memset(prophs, 0, sizeof(prophs));
prophs->evenths = evenths;
xcb_event_set_property_notify_handler(evenths, handle_property_notify_event, prophs);
}
void
xcb_property_handlers_wipe(xcb_property_handlers_t *prophs)
{
xcb_property_handler_node_t *node, *next;
for(node = prophs->head; node; node = next)
{
next = node->next;
free(node);
}
}
xcb_event_handlers_t *
xcb_property_get_event_handlers(xcb_property_handlers_t *prophs)
{
return prophs->evenths;
}
static inline void
set_prop_handler(xcb_property_handler_t *cur, uint32_t long_len, xcb_generic_property_handler_t handler, void *data)
{
cur->long_len = long_len;
cur->handler = handler;
cur->data = data;
}
uint8_t
xcb_property_set_handler(xcb_property_handlers_t *prophs, xcb_atom_t name, uint32_t long_len, xcb_generic_property_handler_t handler, void *data)
{
xcb_property_handler_node_t *cur = malloc(sizeof(xcb_property_handler_node_t));
if(!cur)
return 0;
cur->next = prophs->head;
cur->name = name;
set_prop_handler(&cur->h, long_len, handler, data);
prophs->head = cur;
return 1;
}
uint8_t
xcb_property_set_default_handler(xcb_property_handlers_t *prophs, uint32_t long_len, xcb_generic_property_handler_t handler, void *data)
{
set_prop_handler(&prophs->def, long_len, handler, data);
return 1;
}
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