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/*
Copyright (c) 2004-2006, The Dojo Foundation
All Rights Reserved.
Licensed under the Academic Free License version 2.1 or above OR the
modified BSD license. For more information on Dojo licensing, see:
http://dojotoolkit.org/community/licensing.shtml
*/
dojo.provide("dojo.animation.Animation");
dojo.require("dojo.animation.AnimationEvent");
dojo.require("dojo.lang.func");
dojo.require("dojo.math");
dojo.require("dojo.math.curves");
dojo.deprecated("dojo.animation.Animation is slated for removal in 0.5; use dojo.lfx.* instead.", "0.5");
dojo.animation.Animation = function (curve, duration, accel, repeatCount, rate) {
if (dojo.lang.isArray(curve)) {
curve = new dojo.math.curves.Line(curve[0], curve[1]);
}
this.curve = curve;
this.duration = duration;
this.repeatCount = repeatCount || 0;
this.rate = rate || 25;
if (accel) {
if (dojo.lang.isFunction(accel.getValue)) {
this.accel = accel;
} else {
var i = 0.35 * accel + 0.5;
this.accel = new dojo.math.curves.CatmullRom([[0], [i], [1]], 0.45);
}
}
};
dojo.lang.extend(dojo.animation.Animation, {curve:null, duration:0, repeatCount:0, accel:null, onBegin:null, onAnimate:null, onEnd:null, onPlay:null, onPause:null, onStop:null, handler:null, _animSequence:null, _startTime:null, _endTime:null, _lastFrame:null, _timer:null, _percent:0, _active:false, _paused:false, _startRepeatCount:0, play:function (gotoStart) {
if (gotoStart) {
clearTimeout(this._timer);
this._active = false;
this._paused = false;
this._percent = 0;
} else {
if (this._active && !this._paused) {
return;
}
}
this._startTime = new Date().valueOf();
if (this._paused) {
this._startTime -= (this.duration * this._percent / 100);
}
this._endTime = this._startTime + this.duration;
this._lastFrame = this._startTime;
var e = new dojo.animation.AnimationEvent(this, null, this.curve.getValue(this._percent), this._startTime, this._startTime, this._endTime, this.duration, this._percent, 0);
this._active = true;
this._paused = false;
if (this._percent == 0) {
if (!this._startRepeatCount) {
this._startRepeatCount = this.repeatCount;
}
e.type = "begin";
if (typeof this.handler == "function") {
this.handler(e);
}
if (typeof this.onBegin == "function") {
this.onBegin(e);
}
}
e.type = "play";
if (typeof this.handler == "function") {
this.handler(e);
}
if (typeof this.onPlay == "function") {
this.onPlay(e);
}
if (this._animSequence) {
this._animSequence._setCurrent(this);
}
this._cycle();
}, pause:function () {
clearTimeout(this._timer);
if (!this._active) {
return;
}
this._paused = true;
var e = new dojo.animation.AnimationEvent(this, "pause", this.curve.getValue(this._percent), this._startTime, new Date().valueOf(), this._endTime, this.duration, this._percent, 0);
if (typeof this.handler == "function") {
this.handler(e);
}
if (typeof this.onPause == "function") {
this.onPause(e);
}
}, playPause:function () {
if (!this._active || this._paused) {
this.play();
} else {
this.pause();
}
}, gotoPercent:function (pct, andPlay) {
clearTimeout(this._timer);
this._active = true;
this._paused = true;
this._percent = pct;
if (andPlay) {
this.play();
}
}, stop:function (gotoEnd) {
clearTimeout(this._timer);
var step = this._percent / 100;
if (gotoEnd) {
step = 1;
}
var e = new dojo.animation.AnimationEvent(this, "stop", this.curve.getValue(step), this._startTime, new Date().valueOf(), this._endTime, this.duration, this._percent);
if (typeof this.handler == "function") {
this.handler(e);
}
if (typeof this.onStop == "function") {
this.onStop(e);
}
this._active = false;
this._paused = false;
}, status:function () {
if (this._active) {
return this._paused ? "paused" : "playing";
} else {
return "stopped";
}
}, _cycle:function () {
clearTimeout(this._timer);
if (this._active) {
var curr = new Date().valueOf();
var step = (curr - this._startTime) / (this._endTime - this._startTime);
var fps = 1000 / (curr - this._lastFrame);
this._lastFrame = curr;
if (step >= 1) {
step = 1;
this._percent = 100;
} else {
this._percent = step * 100;
}
if (this.accel && this.accel.getValue) {
step = this.accel.getValue(step);
}
var e = new dojo.animation.AnimationEvent(this, "animate", this.curve.getValue(step), this._startTime, curr, this._endTime, this.duration, this._percent, Math.round(fps));
if (typeof this.handler == "function") {
this.handler(e);
}
if (typeof this.onAnimate == "function") {
this.onAnimate(e);
}
if (step < 1) {
this._timer = setTimeout(dojo.lang.hitch(this, "_cycle"), this.rate);
} else {
e.type = "end";
this._active = false;
if (typeof this.handler == "function") {
this.handler(e);
}
if (typeof this.onEnd == "function") {
this.onEnd(e);
}
if (this.repeatCount > 0) {
this.repeatCount--;
this.play(true);
} else {
if (this.repeatCount == -1) {
this.play(true);
} else {
if (this._startRepeatCount) {
this.repeatCount = this._startRepeatCount;
this._startRepeatCount = 0;
}
if (this._animSequence) {
this._animSequence._playNext();
}
}
}
}
}
}});