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https://github.com/Jermolene/TiddlyWiki5
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123 lines
2.5 KiB
JavaScript
123 lines
2.5 KiB
JavaScript
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/*\
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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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var TW_TextNode = function(text) {
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this.textContent = text;
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}
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var TW_Element = function(tag) {
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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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}
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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.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.addEventListener = function(type,listener,useCapture) {
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// Do nothing
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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(">\n");
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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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createElementNS: function(namespace,tag) {
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return new TW_Element(tag);
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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.document = document;
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})();
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