player/js/utils/common.js

var subframeEnabled = false;
var cachedColors = {};
var bm_rnd = Math.round;

function styleDiv(element){
    element.style.position = 'absolute';
    element.style.top = 0;
    element.style.left = 0;
    element.style.display = 'block';
    element.style.verticalAlign = 'top';
    element.style.backfaceVisibility  = element.style.webkitBackfaceVisibility = 'hidden';
    //element.style.transformStyle = element.style.webkitTransformStyle = "preserve-3d";
    styleUnselectableDiv(element);
}

function styleUnselectableDiv(element){
    element.style.userSelect = 'none';
    element.style.MozUserSelect = 'none';
    element.style.webkitUserSelect = 'none';
    element.style.oUserSelect = 'none';

}

function addEventListener(eventName, callback){

    if (!this._cbs){
        this._cbs = [];
    }

    if (!this._cbs[eventName]){
        this._cbs[eventName] = [];
    }

    this._cbs[eventName].push(callback);

}

function triggerEvent(eventName, args){

    if (!this._cbs){
        this._cbs = [];
    }

    var delay = this._cbs.length === 0;
    var that = this;

    if (this._cbs[eventName]) {
        if (delay){
            setTimeout(function(){
                for (var i = 0; i < that._cbs[eventName].length; i++){
                    that._cbs[eventName][i](args);
                }
            }, 0);
        }
        else {
            for (var i = 0; i < this._cbs[eventName].length; i++){
                this._cbs[eventName][i](args);
            }
        }
    }
}

function randomString(length, chars){
    if(chars === undefined){
        chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
    }
    var i;
    var result = '';
    for (i = length; i > 0; --i) result += chars[Math.round(Math.random() * (chars.length - 1))];
    return result;
}

function componentToHex(c) {
    var hex = c.toString(16);
    return hex.length == 1 ? '0' + hex : hex;
}

var rgbToHex = (function(){
    var colorMap = [];
    var i;
    var hex;
    for(i=0;i<256;i+=1){
        hex = i.toString(16);
        colorMap[i] = hex.length == 1 ? '0' + hex : hex;
    }

    return function(r, g, b) {
        if(r<0){
            r = 0;
        }
        if(g<0){
            g = 0;
        }
        if(b<0){
            b = 0;
        }
        return '#' + colorMap[r] + colorMap[g] + colorMap[b];
    };
}());

function fillToRgba(hex,alpha){
    if(!cachedColors[hex]){
        var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
        cachedColors[hex] = parseInt(result[1], 16)+','+parseInt(result[2], 16)+','+parseInt(result[3], 16);
    }
    return 'rgba('+cachedColors[hex]+','+alpha+')';
}

var fillColorToString = (function(){

    var colorMap = [];
    return function(colorArr,alpha){
        if(alpha !== undefined){
            colorArr[3] = alpha;
        }
        if(!colorMap[colorArr[0]]){
            colorMap[colorArr[0]] = {};
        }
        if(!colorMap[colorArr[0]][colorArr[1]]){
            colorMap[colorArr[0]][colorArr[1]] = {};
        }
        if(!colorMap[colorArr[0]][colorArr[1]][colorArr[2]]){
            colorMap[colorArr[0]][colorArr[1]][colorArr[2]] = {};
        }
        if(!colorMap[colorArr[0]][colorArr[1]][colorArr[2]][colorArr[3]]){
            colorMap[colorArr[0]][colorArr[1]][colorArr[2]][colorArr[3]] = 'rgba(' + colorArr.join(',')+')';
        }
        return colorMap[colorArr[0]][colorArr[1]][colorArr[2]][colorArr[3]];
    };
}());

function RenderedFrame(tr,o) {
    this.tr = tr;
    this.o = o;
}