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fix chrome no maximized #57

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fix chrome no maximized #57

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2b81ec4
fix chrome no maximized
yaniswang Sep 28, 2015
2678597
window.innerWidth
yaniswang Sep 29, 2015
9372358
add svg support
yaniswang Sep 30, 2015
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19 changes: 17 additions & 2 deletions detect-zoom.js
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,21 @@
return window.devicePixelRatio || 1;
};

/**
* Use svg:currentScale if supported by the browser
* @return {Number}
* @private
*/
var svgZoom = function(){
var svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
svg.setAttribute('version', '1.1');
document.body.appendChild(svg);
var zoom = svg.currentScale;
document.body.removeChild(svg);
return Math.round(zoom * 100) / 100;
}

/**
* Fallback function to set default values
* @return {Object}
Expand Down Expand Up @@ -77,7 +92,7 @@
*/
var chrome = function()
{
var zoom = Math.round(((window.outerWidth) / window.innerWidth)*100) / 100;
var zoom = svgZoom();
return {
zoom: zoom,
devicePxPerCssPx: zoom * devicePixelRatio()
Expand All @@ -90,7 +105,7 @@
*/
var safari= function()
{
var zoom = Math.round(((document.documentElement.clientWidth) / window.innerWidth)*100) / 100;
var zoom = svgZoom();
return {
zoom: zoom,
devicePxPerCssPx: zoom * devicePixelRatio()
Expand Down