player/js/animation/AnimationItem.js

var AnimationItem = function () {
    this.name = '';
    this.path = '';
    this.isLoaded = false;
    this.currentFrame = 0;
    this.currentRawFrame = 0;
    this.totalFrames = 0;
    this.frameRate = 0;
    this.frameMult = 0;
    this.playSpeed = 1;
    this.playDirection = 1;
    this.pendingElements = 0;
    this.playCount = 0;
    this.prerenderFramesFlag = true;
    this.repeat = 'indefinite';
    this.animationData = {};
    this.layers = [];
    this.assets = [];
    this.isPaused = true;
    this.isScrolling = false;
    this.loop = true;
    this.renderer = null;
    this.animationID = randomString(10);
    this.renderedFrameCount = 0;
    this.math = Math;
};

AnimationItem.prototype.setData = function (wrapper) {
    this.wrapper = wrapper;
    //this.wrapper.style.position = 'relative';
    var self = this;
    var wrapperAttributes = this.wrapper.attributes;
    this.path = wrapperAttributes.getNamedItem('data-animation-path') ? wrapperAttributes.getNamedItem('data-animation-path').value : wrapperAttributes.getNamedItem('data-bm-path') ? wrapperAttributes.getNamedItem('data-bm-path').value :  wrapperAttributes.getNamedItem('bm-path') ? wrapperAttributes.getNamedItem('bm-path').value : '';
    this.animType = wrapperAttributes.getNamedItem('data-anim-type') ? wrapperAttributes.getNamedItem('data-anim-type').value : wrapperAttributes.getNamedItem('data-bm-type') ? wrapperAttributes.getNamedItem('data-bm-type').value : wrapperAttributes.getNamedItem('bm-type') ? wrapperAttributes.getNamedItem('bm-type').value :  'canvas';
    switch(this.animType){
        case 'canvas':
            this.renderer = new CanvasRenderer(this);
            break;
        case 'svg':
            this.renderer = new SVGRenderer(this);
    }
    this.repeat = wrapperAttributes.getNamedItem('data-anim-repeat') ? wrapperAttributes.getNamedItem('data-anim-repeat').value : this.repeat;
    var loop = wrapperAttributes.getNamedItem('data-anim-loop') ? wrapperAttributes.getNamedItem('data-anim-loop').value :  wrapperAttributes.getNamedItem('data-bm-loop') ? wrapperAttributes.getNamedItem('data-bm-loop').value :  wrapperAttributes.getNamedItem('bm-loop') ? wrapperAttributes.getNamedItem('bm-loop').value : '';
    if(loop == ''){
    }else if(loop === 'false'){
        this.loop = false;
    }else if(loop === 'true'){
        this.loop = true;
    }else{
        this.loop = parseInt(loop);
    }
    this.name = wrapperAttributes.getNamedItem('data-name') ? wrapperAttributes.getNamedItem('data-name').value :  wrapperAttributes.getNamedItem('data-bm-name') ? wrapperAttributes.getNamedItem('data-bm-name').value : wrapperAttributes.getNamedItem('bm-name') ? wrapperAttributes.getNamedItem('bm-name').value :  '';
    var prerender = wrapperAttributes.getNamedItem('data-anim-prerender') ? wrapperAttributes.getNamedItem('data-anim-prerender').value :  wrapperAttributes.getNamedItem('data-bm-prerender') ? wrapperAttributes.getNamedItem('data-bm-prerender').value :  wrapperAttributes.getNamedItem('bm-prerender') ? wrapperAttributes.getNamedItem('bm-prerender').value : '';
    if(prerender === 'false'){
        this.prerenderFramesFlag = false;
    }
    if(this.path == ''){
        return;
    }
    if (this.path.substr(-1, 1) != '/') {
        this.path += '/';
    }
    var xhr = new XMLHttpRequest();
    xhr.open('GET', this.path + 'data.json', true);
    xhr.send();
    xhr.onreadystatechange = function () {
        if (xhr.readyState == 4) {
            if(xhr.status == 200){
                self.configAnimation(JSON.parse(xhr.responseText));
            }else{
                try{
                    var response = JSON.parse(xhr.responseText);
                    self.configAnimation(response);
                }catch(err){
                }
            }
        }
    };
};

AnimationItem.prototype.configAnimation = function (animData) {
    this.renderer.configAnimation(animData);

    this.animationData = animData;
    this.animationData._id = this.animationID;
    this.animationData._animType = this.animType;
    this.layers = this.animationData.animation.layers;
    this.assets = this.animationData.assets;
    this.totalFrames = this.animationData.animation.totalFrames;
    this.frameRate = this.animationData.animation.frameRate;
    this.frameMult = this.animationData.animation.frameRate / 1000;
    dataManager.completeData(this.animationData);
    this.renderer.buildItems(this.animationData.animation.layers);
    this.updaFrameModifier();
    this.checkLoaded();
};

AnimationItem.prototype.elementLoaded = function () {
    this.pendingElements--;
    this.checkLoaded();
};

AnimationItem.prototype.checkLoaded = function () {
    this.renderer.buildStage(this.container, this.layers);
    if (this.pendingElements == 0) {
        if(this.prerenderFramesFlag){
            this.prerenderFrames(0);
            dataManager.renderFrame(this.animationID,this.currentFrame);
            this.renderer.renderFrame(this.currentFrame);
        }else{
            this.isLoaded = true;
            this.gotoFrame();
        }
    }
};

AnimationItem.prototype.prerenderFrames = function(count){
    if(!count){
        count = 0;
    }
    if(this.renderedFrameCount === this.totalFrames){
        //TODO Need polyfill for ios 5.1
        this.isLoaded = true;
        this.gotoFrame();
    }else{
        dataManager.renderFrame(this.animationID,this.renderedFrameCount);
        this.renderedFrameCount+=1;
        if(count > 5){
            setTimeout(this.prerenderFrames.bind(this),0);
        }else{
            count += 1;
            this.prerenderFrames(count);
        }
    }
};

AnimationItem.prototype.resize = function () {
    this.renderer.updateContainerSize();
};

AnimationItem.prototype.gotoFrame = function () {
    if(subframeEnabled){
        this.currentFrame = this.math.round(this.currentRawFrame*100)/100;
    }else{
        this.currentFrame = this.math.floor(this.currentRawFrame);
    }
    this.renderFrame();
};

AnimationItem.prototype.renderFrame = function () {
    if(this.isLoaded === false){
        return;
    }
    dataManager.renderFrame(this.animationID,this.currentFrame);
    this.renderer.renderFrame(this.currentFrame);
};

AnimationItem.prototype.play = function (name) {
    if(name && this.name != name){
        return;
    }
    if(this.isPaused === true){
        this.isPaused = false;
    }
};

AnimationItem.prototype.pause = function (name) {
    if(name && this.name != name){
        return;
    }
    if(this.isPaused === false){
        this.isPaused = true;
    }
};

AnimationItem.prototype.togglePause = function (name) {
    if(name && this.name != name){
        return;
    }
    if(this.isPaused === true){
        this.isPaused = false;
        this.play();
    }else{
        this.isPaused = true;
        this.pause();
    }
};

AnimationItem.prototype.stop = function (name) {
    if(name && this.name != name){
        return;
    }
    this.isPaused = true;
    this.currentFrame = this.currentRawFrame = 0;
    this.playCount = 0;
    this.gotoFrame();
};

AnimationItem.prototype.goToAndStop = function (pos) {
    this.isPaused = true;
    this.currentFrame = this.currentRawFrame = pos;
    this.playCount = 0;
    this.gotoFrame();
};

AnimationItem.prototype.advanceTime = function (value) {
    if (this.isPaused === true || this.isScrolling === true || this.isLoaded === false) {
        return;
    }
    this.setCurrentRawFrameValue(this.currentRawFrame + value * this.frameModifier);
};

AnimationItem.prototype.updateAnimation = function (perc) {
    this.setCurrentRawFrameValue(this.totalFrames * perc);
};

AnimationItem.prototype.moveFrame = function (value, name) {
    if(name && this.name != name){
        return;
    }
    this.setCurrentRawFrameValue(this.currentRawFrame+value);
};

AnimationItem.prototype.setCurrentRawFrameValue = function(value){
    this.currentRawFrame = value;
    if (this.currentRawFrame >= this.totalFrames) {
        this.currentRawFrame = this.currentRawFrame % this.totalFrames;
        if(this.loop === false){
            this.goToAndStop(this.totalFrames - 1);
        }else{
            this.playCount += 1;
            if(this.loop !== true){
                if(this.playCount == this.loop){
                    this.goToAndStop(this.totalFrames - 1);
                }
            }
        }
    } else if (this.currentRawFrame < 0) {
        this.playCount -= 1;
        if(this.playCount < 0){
            this.playCount = 0;
        }
        this.currentRawFrame = this.totalFrames + this.currentRawFrame;
    }
    this.gotoFrame();
};

AnimationItem.prototype.setSpeed = function (val) {
    this.playSpeed = val;
    this.updaFrameModifier();
};

AnimationItem.prototype.setDirection = function (val) {
    this.playDirection = val < 0 ? -1 : 1;
    this.updaFrameModifier();
};

AnimationItem.prototype.updaFrameModifier = function () {
    this.frameModifier = this.frameMult * this.playSpeed * this.playDirection;
};

AnimationItem.prototype.getPath = function () {
    return this.path;
};

AnimationItem.prototype.getAssets = function () {
    return this.assets;
};