139 lines
3.0 KiB
JavaScript
139 lines
3.0 KiB
JavaScript
/*\
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title: $:/core/treenodes/element.js
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type: application/javascript
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module-type: treenode
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Element nodes
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\*/
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(function(){
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/*jshint node: true, browser: true */
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"use strict";
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var Node = require("./node.js").Node;
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var Element = function(type,attributes,children) {
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if(this instanceof Element) {
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this.type = type;
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this.attributes = attributes || {};
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this.children = children || [];
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} else {
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return new Element(type,attributes,children);
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}
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};
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Element.prototype = new Node();
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Element.prototype.constructor = Element;
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Element.prototype.clone = function() {
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var childClones = [];
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for(var t=0; t<this.children.length; t++) {
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childClones.push(this.children[t].clone());
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}
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return new Element(this.type,this.attributes,childClones);
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};
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Element.prototype.execute = function(parents,tiddlerTitle) {
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for(var t=0; t<this.children.length; t++) {
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this.children[t].execute(parents,tiddlerTitle);
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}
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};
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Element.prototype.render = function(type) {
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var isHtml = type === "text/html",
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output = [];
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if(isHtml) {
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output.push("<",this.type);
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if(this.attributes) {
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for(var a in this.attributes) {
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var v = this.attributes[a];
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if(v !== undefined) {
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if($tw.utils.isArray(v)) {
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v = v.join(" ");
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} else if(typeof v === "object") {
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var s = [];
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for(var p in v) {
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s.push(p + ":" + v[p] + ";");
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}
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v = s.join("");
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}
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output.push(" ",a,"='",$tw.utils.htmlEncode(v),"'");
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}
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}
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}
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output.push(">");
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}
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if(this.children) {
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for(var t=0; t<this.children.length; t++) {
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output.push(this.children[t].render(type));
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}
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if(isHtml) {
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output.push("</",this.type,">");
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}
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}
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return output.join("");
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};
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Element.prototype.renderInDom = function(parentDomNode,insertBefore) {
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var element = document.createElement(this.type);
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if(this.attributes) {
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for(var a in this.attributes) {
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var v = this.attributes[a];
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if(v !== undefined) {
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if($tw.utils.isArray(v)) { // Ahem, could there be arrays other than className?
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element.className = v.join(" ");
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} else if (typeof v === "object") { // ...or objects other than style?
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for(var p in v) {
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element.style[p] = v[p];
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}
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} else {
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element.setAttribute(a,v);
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}
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}
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}
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}
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if(insertBefore) {
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parentDomNode.insertBefore(element,insertBefore);
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} else {
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parentDomNode.appendChild(element);
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}
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this.domNode = element;
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if(this.children) {
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for(var t=0; t<this.children.length; t++) {
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this.children[t].renderInDom(element);
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}
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}
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};
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Element.prototype.refresh = function(changes) {
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if(this.children) {
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for(var t=0; t<this.children.length; t++) {
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this.children[t].refresh(changes);
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}
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}
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};
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Element.prototype.refreshInDom = function(changes) {
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if(this.children) {
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for(var t=0; t<this.children.length; t++) {
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this.children[t].refreshInDom(changes);
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}
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}
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};
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Element.prototype.broadcastEvent = function(event) {
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if(this.children) {
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for(var t=0; t<this.children.length; t++) {
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if(!this.children[t].broadcastEvent(event)) {
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return false;
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}
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}
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}
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return true;
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};
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exports.Element = Element;
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})();
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