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use requestAnimationFrame for loading icon if available

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This commit is contained in:
j 2016-08-09 14:11:43 +02:00
commit 4c54a294f6
2 changed files with 46 additions and 20 deletions
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31
index.js
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@ -353,23 +353,36 @@ Ox.load(/^https?:\/\/(www\.)?oxjs\.org\//.test(
rotate: function() {
var css, deg = 0,
previousTime = +new Date(),
interval = setInterval(function() {
var currentTime = +new Date(),
delta = (currentTime - previousTime) / 1000,
loadingIcon = document.getElementById('loadingIcon');
if (loadingIcon) {
interval;
function step() {
var currentTime = +new Date(),
delta = (currentTime - previousTime) / 1000,
loadingIcon = document.getElementById('loadingIcon'),
next = Math.round((deg + delta * 360) % 360 / 30) * 30;
if (loadingIcon) {
if (deg != next) {
previousTime = currentTime;
deg = Math.round((deg + delta * 360) % 360 / 30) * 30;
deg = next;
css = 'rotate(' + deg + 'deg)';
loadingIcon.style.MozTransform = css;
loadingIcon.style.MSTransform = css;
loadingIcon.style.OTransform = css;
loadingIcon.style.WebkitTransform = css;
loadingIcon.style.transform = css;
} else {
clearInterval(interval);
}
}, 83);
if (window.requestAnimationFrame !== undefined) {
window.requestAnimationFrame(step);
}
} else if (window.requestAnimationFrame === undefined) {
clearInterval(interval);
}
};
if (window.requestAnimationFrame !== undefined) {
window.requestAnimationFrame(step);
} else {
interval = setInterval(step, 83);
}
},
setTheme: function(theme) {
app.user.theme = theme;