player/js/elements/BaseElement.js

function BaseElement(){
}

BaseElement.prototype = {
    checkMasks: function(){
        if(!this.data.hasMask){
            return false;
        }
        var i = 0, len = this.data.masksProperties.length;
        while(i<len) {
            if((this.data.masksProperties[i].mode !== 'n' && this.data.masksProperties[i].cl !== false)) {
                return true;
            }
            i += 1;
        }
        return false;
    },
    initExpressions: function(){
        this.layerInterface = LayerExpressionInterface(this);
        if(this.data.hasMask && this.maskManager) {
            this.layerInterface.registerMaskInterface(this.maskManager);
        }
        var effectsInterface = EffectsExpressionInterface.createEffectsInterface(this,this.layerInterface);
        this.layerInterface.registerEffectsInterface(effectsInterface);

        if(this.data.ty === 0 || this.data.xt){
            this.compInterface = CompExpressionInterface(this);
        } else if(this.data.ty === 4){
            this.layerInterface.shapeInterface = ShapeExpressionInterface(this.shapesData,this.itemsData,this.layerInterface);
            this.layerInterface.content = this.layerInterface.shapeInterface;
        } else if(this.data.ty === 5){
            this.layerInterface.textInterface = TextExpressionInterface(this);
            this.layerInterface.text = this.layerInterface.textInterface;
        }
    },
    blendModeEnums: {
        1:'multiply',
        2:'screen',
        3:'overlay',
        4:'darken',
        5:'lighten',
        6:'color-dodge',
        7:'color-burn',
        8:'hard-light',
        9:'soft-light',
        10:'difference',
        11:'exclusion',
        12:'hue',
        13:'saturation',
        14:'color',
        15:'luminosity'
    },
    getBlendMode: function(){
        return this.blendModeEnums[this.data.bm] || '';
    },
    setBlendMode: function(){
        var blendModeValue = this.getBlendMode();
        var elem = this.baseElement || this.layerElement;

        elem.style['mix-blend-mode'] = blendModeValue;
    },
    initBaseData: function(data, globalData, comp){
        this.globalData = globalData;
        this.comp = comp;
        this.data = data;
        this.layerId = createElementID();
        
        //Stretch factor for old animations missing this property.
        if(!this.data.sr){
            this.data.sr = 1;
        }
        // effects manager
        this.effectsManager = new EffectsManager(this.data,this,this.dynamicProperties);
        
    },
    getType: function(){
        return this.type;
    }
}