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module.exports = function(GedcomX){ |
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var utils = require('../utils'), |
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Base = require('../Base'); |
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/** |
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* A list of Links |
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* |
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* @constructor |
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* @param {Object} [json] |
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*/ |
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var Links = function(json){ |
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// Protect against forgetting the new keyword when calling the constructor |
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if(!(this instanceof Links)){ |
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return new Links(json); |
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} |
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// If the given object is already an instance then just return it. DON'T copy it. |
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if(Links.isInstance(json)){ |
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return json; |
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} |
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this.init(json); |
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}; |
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// There's no value in us extending Base at the moment |
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Links.prototype = Object.create(Base.prototype); |
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Links._gedxClass = Links.prototype._gedxClass = 'GedcomX.Links'; |
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/** |
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* Check whether the given object is an instance of this class. |
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* |
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* @param {Object} obj |
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* @returns {Boolean} |
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*/ |
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Links.isInstance = function(obj){ |
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return utils.isInstance(obj, this._gedxClass); |
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}; |
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/** |
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* Initialize from JSON |
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* |
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* @param {Object} |
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* @return {Link} this |
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*/ |
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Links.prototype.init = function(json){ |
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Base.prototype.init.call(this, json); |
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if(json){ |
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this.setLinks(json); |
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} |
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return this; |
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}; |
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/** |
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* Get the list of links |
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* |
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* @return {Link[]} links |
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*/ |
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Links.prototype.getLinks = function(){ |
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return this.links; |
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}; |
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/** |
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* Get a link matching a rel |
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* |
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* @param {String} rel |
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* @return {Link} link |
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*/ |
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Links.prototype.getLink = function(rel){ |
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return this.links.find(function(link){ |
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return link.getRel() === rel; |
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}); |
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}; |
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/** |
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* Add a link |
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* |
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* @param {Link} link |
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* @return {Links} this |
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*/ |
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Links.prototype.addLink = function(link){ |
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// TODO: check for duplicates |
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this.links.push(GedcomX.Link(link)); |
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return this; |
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}; |
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/** |
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* Set the links. May either provide the JSON object structure or an array |
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* of Link instances |
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* |
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* @param {Object|Link[]} links |
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* @return {Links} this |
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*/ |
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Links.prototype.setLinks = function(links){ |
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this.links = []; |
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if(links){ |
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// List of link |
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if(Array.isArray(links)){ |
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for(var i = 0; i < links.length; i++){ |
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this.addLink(links[i]); |
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} |
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} |
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// JSON object |
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else { |
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for(var rel in links){ |
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this.addLink(new GedcomX.Link(links[rel]).setRel(rel)); |
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} |
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} |
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} |
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return this; |
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}; |
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/** |
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* Export the object as JSON |
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* |
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* @return {Object} JSON object |
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*/ |
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Links.prototype.toJSON = function(){ |
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var links = this.getLinks(), |
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json = {}, |
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linkJson, rel; |
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for(var i = 0; i < links.length; i++){ |
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linkJson = utils.toJSON(links[i]); |
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rel = linkJson.rel; |
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if(rel){ |
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delete linkJson.rel; |
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json[rel] = linkJson; |
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} |
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} |
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return json; |
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}; |
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GedcomX.Links = Links; |
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}; |