Sha256: 747d1307247a9a6a2749930218b4d80dc7044a2d27a4aa5d221ae6f6d16b31b9
Contents?: true
Size: 1.48 KB
Versions: 10
Compression:
Stored size: 1.48 KB
Contents
/*
* L.PosAnimation fallback implementation that powers Leaflet pan animations
* in browsers that don't support CSS3 Transitions.
*/
L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({
run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
this.stop();
this._el = el;
this._inProgress = true;
this._duration = duration || 0.25;
this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
this._startPos = L.DomUtil.getPosition(el);
this._offset = newPos.subtract(this._startPos);
this._startTime = +new Date();
this.fire('start');
this._animate();
},
stop: function () {
if (!this._inProgress) { return; }
this._step();
this._complete();
},
_animate: function () {
// animation loop
this._animId = L.Util.requestAnimFrame(this._animate, this);
this._step();
},
_step: function () {
var elapsed = (+new Date()) - this._startTime,
duration = this._duration * 1000;
if (elapsed < duration) {
this._runFrame(this._easeOut(elapsed / duration));
} else {
this._runFrame(1);
this._complete();
}
},
_runFrame: function (progress) {
var pos = this._startPos.add(this._offset.multiplyBy(progress));
L.DomUtil.setPosition(this._el, pos);
this.fire('step');
},
_complete: function () {
L.Util.cancelAnimFrame(this._animId);
this._inProgress = false;
this.fire('end');
},
_easeOut: function (t) {
return 1 - Math.pow(1 - t, this._easeOutPower);
}
});
Version data entries
10 entries across 10 versions & 1 rubygems