fixScale = function(doc) { | |
var addEvent = 'addEventListener', | |
type = 'gesturestart', | |
qsa = 'querySelectorAll', | |
scales = [1, 1], | |
meta = qsa in doc ? doc[qsa]('meta[name=viewport]') : []; | |
function fix() { | |
meta.content = 'width=device-width,minimum-scale=' + scales[0] + ',maximum-scale=' + scales[1]; | |
doc.removeEventListener(type, fix, true); | |
} | |
if ((meta = meta[meta.length - 1]) && addEvent in doc) { | |
fix(); | |
scales = [.25, 1.6]; | |
doc[addEvent](type, fix, true); | |
} | |
}; |