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"use strict";
/*
Copyright (C) 2014 by Jeremy P. White <jwhite@codeweavers.com>
This file is part of spice-html5.
spice-html5 is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
spice-html5 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with spice-html5. If not, see <http://www.gnu.org/licenses/>.
*/
/*----------------------------------------------------------------------------
** resize.js
** This bit of Javascript is a set of logic to help with window
** resizing, using the agent channel to request screen resizes.
**
** It's a bit tricky, as we want to wait for resizing to settle down
** before sending a size. Further, while horizontal resizing to use the whole
** browser width is fairly easy to arrange with css, resizing an element to use
** the whole vertical space (or to force a middle div to consume the bulk of the browser
** window size) is tricky, and the consensus seems to be that Javascript is
** the only right way to do it.
**--------------------------------------------------------------------------*/
function resize_helper(sc)
{
var w = document.getElementById(sc.screen_id).clientWidth;
var m = document.getElementById(sc.message_id);
/* Resize vertically; basically we leave a 20 pixel margin
at the bottom, and use the position of the message window
to figure out how to resize */
var h = window.innerHeight - 20;
/* Screen height based on debug console visibility */
if (m != null)
{
if (window.getComputedStyle(m).getPropertyValue("display") == 'none')
{
/* Get console height from spice.css .spice-message */
var mh = parseInt(window.getComputedStyle(m).getPropertyValue("height"), 10);
h = h - mh;
}
else
{
/* Show both div elements - spice-area and message-div */
h = h - m.offsetHeight - m.clientHeight;
}
}
/* Xorg requires height be a multiple of 8; round down */
if (h % 8 > 0)
h -= (h % 8);
/* Xorg requires width be a multiple of 8; round down */
if (w % 8 > 0)
w -= (w % 8);
sc.resize_window(0, w, h, 32, 0, 0);
sc.spice_resize_timer = undefined;
}
function handle_resize(e)
{
var sc = window.spice_connection;
if (sc && sc.spice_resize_timer)
{
window.clearTimeout(sc.spice_resize_timer);
sc.spice_resize_timer = undefined;
}
sc.spice_resize_timer = window.setTimeout(resize_helper, 200, sc);
}
export {
resize_helper,
handle_resize,
};
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