gri3-wm/libi3/fake_configure_notify.c

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/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
*
*/
#include "libi3.h"
#include <stdlib.h>
#include <xcb/xcb.h>
#include <xcb/xproto.h>
/*
* Generates a configure_notify event and sends it to the given window
* Applications need this to think theyve configured themselves correctly.
* The truth is, however, that we will manage them.
*
*/
void fake_configure_notify(xcb_connection_t *conn, xcb_rectangle_t r, xcb_window_t window, int border_width) {
/* Every X11 event is 32 bytes long. Therefore, XCB will copy 32 bytes.
* In order to properly initialize these bytes, we allocate 32 bytes even
* though we only need less for an xcb_configure_notify_event_t */
void *event = scalloc(32, 1);
xcb_configure_notify_event_t *generated_event = event;
generated_event->event = window;
generated_event->window = window;
generated_event->response_type = XCB_CONFIGURE_NOTIFY;
generated_event->x = r.x;
generated_event->y = r.y;
generated_event->width = r.width;
generated_event->height = r.height;
generated_event->border_width = border_width;
generated_event->above_sibling = XCB_NONE;
generated_event->override_redirect = false;
xcb_send_event(conn, false, window, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *)generated_event);
xcb_flush(conn);
free(event);
}