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zoom only for chrome

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This commit is contained in:
Oleg Korshul 2016-12-02 14:06:27 +03:00
parent b37e1127e8
commit c8176c94dc
1 changed files with 38 additions and 35 deletions
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73
apps/common/main/lib/util/utils.js
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@ -105,51 +105,54 @@ Common.Utils = _.extend(new(function() {
me = this, me = this,
checkSize = function() { checkSize = function() {
me.zoom = 1; me.zoom = 1;
if (false) if (isChrome && !isOpera && document && document.firstElementChild && document.body)
{ {
// этот код - рабочий, но только если этот ифрейм открыт на весь размер браузера if (false)
// (window.outerWidth и window.innerWidth зависимы) {
if (window.innerWidth > 300) // этот код - рабочий, но только если этот ифрейм открыт на весь размер браузера
// (window.outerWidth и window.innerWidth зависимы)
if (window.innerWidth > 300)
me.zoom = window.outerWidth / window.innerWidth;
if (Math.abs(me.zoom - 1) < 0.1)
me.zoom = 1;
me.zoom = window.outerWidth / window.innerWidth; me.zoom = window.outerWidth / window.innerWidth;
if (Math.abs(me.zoom - 1) < 0.1) var _devicePixelRatio = window.devicePixelRatio / me.zoom;
me.zoom = 1;
me.zoom = window.outerWidth / window.innerWidth; // device pixel ratio: кратно 0.5
_devicePixelRatio = (5 * (((2.5 + 10 * _devicePixelRatio) / 5) >> 0)) / 10;
me.zoom = window.devicePixelRatio / _devicePixelRatio;
var _devicePixelRatio = window.devicePixelRatio / me.zoom;
// device pixel ratio: кратно 0.5
_devicePixelRatio = (5 * (((2.5 + 10 * _devicePixelRatio) / 5) >> 0)) / 10;
me.zoom = window.devicePixelRatio / _devicePixelRatio;
// chrome 54.x: zoom = "reset" - clear retina zoom (windows)
//document.firstElementChild.style.zoom = "reset";
document.firstElementChild.style.zoom = 1.0 / me.zoom;
}
else
{
// делаем простую проверку
// считаем: 0 < window.devicePixelRatio < 2 => _devicePixelRatio = 1; zoom = window.devicePixelRatio / _devicePixelRatio;
// считаем: window.devicePixelRatio >= 2 => _devicePixelRatio = 2; zoom = window.devicePixelRatio / _devicePixelRatio;
if (window.devicePixelRatio > 0.1)
{
if (window.devicePixelRatio < 1.99)
{
var _devicePixelRatio = 1;
me.zoom = window.devicePixelRatio / _devicePixelRatio;
}
else
{
var _devicePixelRatio = 2;
me.zoom = window.devicePixelRatio / _devicePixelRatio;
}
// chrome 54.x: zoom = "reset" - clear retina zoom (windows) // chrome 54.x: zoom = "reset" - clear retina zoom (windows)
//document.firstElementChild.style.zoom = "reset"; //document.firstElementChild.style.zoom = "reset";
document.firstElementChild.style.zoom = 1.0 / me.zoom; document.firstElementChild.style.zoom = 1.0 / me.zoom;
} }
else else
document.firstElementChild.style.zoom = "normal"; {
// делаем простую проверку
// считаем: 0 < window.devicePixelRatio < 2 => _devicePixelRatio = 1; zoom = window.devicePixelRatio / _devicePixelRatio;
// считаем: window.devicePixelRatio >= 2 => _devicePixelRatio = 2; zoom = window.devicePixelRatio / _devicePixelRatio;
if (window.devicePixelRatio > 0.1)
{
if (window.devicePixelRatio < 1.99)
{
var _devicePixelRatio = 1;
me.zoom = window.devicePixelRatio / _devicePixelRatio;
}
else
{
var _devicePixelRatio = 2;
me.zoom = window.devicePixelRatio / _devicePixelRatio;
}
// chrome 54.x: zoom = "reset" - clear retina zoom (windows)
//document.firstElementChild.style.zoom = "reset";
document.firstElementChild.style.zoom = 1.0 / me.zoom;
}
else
document.firstElementChild.style.zoom = "normal";
}
} }
me.innerWidth = window.innerWidth * me.zoom; me.innerWidth = window.innerWidth * me.zoom;
me.innerHeight = window.innerHeight * me.zoom; me.innerHeight = window.innerHeight * me.zoom;