dl/lib/cdf/CdfTemplate.js

DreamLab Libs

var Core = require("core"),
    Class = Core.Class,
    Types = Core.common.Types;

var CdfDatasource = require("./CdfDatasource.js").CdfDatasource;

/**
 * @class CdfTemplate
 */
var CdfTemplate = function () {

    /*
    this.name = null;
    this.role = null;
    this.kind = null;
    this.data = null;

    this.children = [];
    */

    this.initialize = function (name) {
        this.name = name;
        this.role = null;
        this.kind = null;
        this.data = null;
        this.onerror = null;
        
        // UCS
        this.theme = null;
        this.version = null;
        this.configuration = null;
        this.partials = null;
        this.engine = null;

        this.children = [];
    };
    
    this.addChild = function (cdfTemplate) {
        this.children.push(cdfTemplate);
    };
    
    this.getChild = function(name){
        for (var i = 0, max = this.children.length; i < max; i++) {
            if (this.children[i].name == name) {
                return this.children[i];
            }
        }
        return null;
    };
    
    this.toJSON = function () {
        
        var retVal = {}, i, max;
        
        retVal[this.name] = {
            "role": this.role,
            "kind": this.kind
        };
        
        if (this.theme) {
            retVal[this.name].theme = this.theme;
        }
        if (this.version) {
            retVal[this.name].version = this.version;
        }
        if (this.configuration) {
            retVal[this.name].configuration = this.configuration;
        }
        if (this.partials) {
            retVal[this.name].partials = this.partials;
        }
        if (this.engine) {
            retVal[this.name].engine = this.engine;
        }
        
        // jezeli jest ustawione onerror spawdzam czy jest jedna z 3 dozwolonych wartosci
        if (this.onerror) {
            // jezeli flaga ma akceptowalna wartosc to ja ustawiam
            // jezeli nie: puszczam console error
            if (this.onerror=='discard' || this.onerror=='abort' || this.onerror=='propagate') {
                retVal[this.name].onerror = this.onerror;
            } else {
                console.error('CdfTemplate/toJSON: name:', this.name, 'Wrong onerror flag value:', this.onerror);
            }
        }
        
        if (this.children.length > 0) {
            if (Types.isInstanceOf(this.data, CdfDatasource)) {
                throw "Template: '"+this.name+"' can't have CHILDREN and REMOTE_DATA together!";
            } else if (this.data) {
                 retVal[this.name].data = this.data;
            } else {
                retVal[this.name].data = {};
            }
            
            retVal[this.name].require = [];
            for (i = 0, max = this.children.length; i < max; i++) {
                retVal[this.name].require.push(this.children[i].name);
            }          
        } else if (Types.isInstanceOf(this.data, CdfDatasource)) {
            retVal[this.name]['#data'] = this.data.toJSON();
            
        } else if (this.data) {
            retVal[this.name]['data'] = this.data;
        }
        
        for (i = 0, max = this.children.length; i < max; i++) {
            var renderedChild = this.children[i].toJSON();
            for (var elem in renderedChild) {
                if (renderedChild.hasOwnProperty(elem)) {
                    retVal[elem] = renderedChild[elem];
                }
            }
        }

        return retVal;
    };
    
    this.toString = function (indent) {
        return JSON.stringify(this.toJSON(), null, (indent || 4));
    }
    
};

CdfTemplate = new Class(new CdfTemplate());
exports.CdfTemplate = CdfTemplate;