mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-08-28 12:02:40 +00:00
188 lines
4.0 KiB
JavaScript
Executable File
188 lines
4.0 KiB
JavaScript
Executable File
/*\
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title: $:/core/modules/utils/fakedom.js
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type: application/javascript
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module-type: global
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A barebones implementation of DOM interfaces needed by the rendering mechanism.
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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// Sequence number used to enable us to track objects for testing
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var sequenceNumber = null;
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var bumpSequenceNumber = function(object) {
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if(sequenceNumber !== null) {
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object.sequenceNumber = sequenceNumber++;
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}
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}
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var TW_TextNode = function(text) {
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bumpSequenceNumber(this);
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this.textContent = text;
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};
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var TW_Element = function(tag,namespace) {
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bumpSequenceNumber(this);
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this.isTiddlyWikiFakeDom = true;
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this.tag = tag;
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this.attributes = {};
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this.isRaw = false;
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this.children = [];
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this.namespaceURI = namespace || "http://www.w3.org/1999/xhtml";
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};
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TW_Element.prototype.setAttribute = function(name,value) {
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if(this.isRaw) {
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throw "Cannot setAttribute on a raw TW_Element";
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}
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this.attributes[name] = value;
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};
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TW_Element.prototype.setAttributeNS = function(namespace,name,value) {
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this.setAttribute(name,value);
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};
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TW_Element.prototype.removeAttribute = function(name) {
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if(this.isRaw) {
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throw "Cannot removeAttribute on a raw TW_Element";
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}
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if($tw.utils.hop(this.attributes,name)) {
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delete this.attributes[name];
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}
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};
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TW_Element.prototype.appendChild = function(node) {
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this.children.push(node);
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node.parentNode = this;
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};
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TW_Element.prototype.insertBefore = function(node,nextSibling) {
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if(nextSibling) {
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var p = this.children.indexOf(nextSibling);
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if(p !== -1) {
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this.children.splice(p,0,node);
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node.parentNode = this;
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} else {
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this.appendChild(node);
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}
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} else {
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this.appendChild(node);
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}
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}
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TW_Element.prototype.removeChild = function(node) {
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var p = this.children.indexOf(node);
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if(p !== -1) {
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this.children.splice(p,1);
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}
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};
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TW_Element.prototype.hasChildNodes = function() {
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return !!this.children.length;
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};
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Object.defineProperty(TW_Element.prototype, "firstChild", {
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get: function() {
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return this.children[0];
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}
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});
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TW_Element.prototype.addEventListener = function(type,listener,useCapture) {
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// Do nothing
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};
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Object.defineProperty(TW_Element.prototype, "className", {
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get: function() {
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return this.attributes["class"] || "";
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},
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set: function(value) {
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this.attributes["class"] = value;
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}
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});
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Object.defineProperty(TW_Element.prototype, "outerHTML", {
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get: function() {
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var output = [],attr,a,v;
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output.push("<",this.tag);
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if(this.attributes) {
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attr = [];
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for(a in this.attributes) {
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attr.push(a);
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}
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attr.sort();
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for(a=0; a<attr.length; a++) {
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v = this.attributes[attr[a]];
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if(v !== undefined) {
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output.push(" ",attr[a],"='",$tw.utils.htmlEncode(v),"'");
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}
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}
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}
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output.push(">");
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if($tw.config.htmlVoidElements.indexOf(this.tag) === -1) {
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output.push(this.innerHTML);
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output.push("</",this.tag,">");
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}
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return output.join("");
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}
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});
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Object.defineProperty(TW_Element.prototype, "innerHTML", {
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get: function() {
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if(this.isRaw) {
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return this.rawHTML;
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} else {
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var b = [];
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$tw.utils.each(this.children,function(node) {
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if(node instanceof TW_Element) {
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b.push(node.outerHTML);
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} else if(node instanceof TW_TextNode) {
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b.push($tw.utils.htmlEncode(node.textContent));
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}
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});
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return b.join("");
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}
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},
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set: function(value) {
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this.isRaw = true;
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this.rawHTML = value;
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}
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});
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Object.defineProperty(TW_Element.prototype, "textContent", {
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get: function() {
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if(this.isRaw) {
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throw "Cannot get textContent on a raw TW_Element";
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} else {
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var b = [];
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$tw.utils.each(this.children,function(node) {
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b.push(node.textContent);
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});
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return b.join("");
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}
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}
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});
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var document = {
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setSequenceNumber: function(value) {
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sequenceNumber = value;
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},
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createElementNS: function(namespace,tag) {
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return new TW_Element(tag,namespace);
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},
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createElement: function(tag) {
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return new TW_Element(tag);
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},
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createTextNode: function(text) {
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return new TW_TextNode(text);
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},
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};
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exports.fakeDocument = document;
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})();
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