90 lines
2.9 KiB
JavaScript
90 lines
2.9 KiB
JavaScript
/*************************************************************
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*
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* MathJax/jax/output/SVG/autoload/annotation-xml.js
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*
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* Implements the SVG output for <annotation-xml> elements.
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2012 Design Science, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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MathJax.Hub.Register.StartupHook("SVG Jax Ready",function () {
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var VERSION = "2.0";
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var MML = MathJax.ElementJax.mml,
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SVG = MathJax.OutputJax.SVG;
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var BBOX = SVG.BBOX;
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BBOX.FOREIGN = BBOX.Subclass({type: "foreignObject", removeable: false});
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MML["annotation-xml"].Augment({
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toSVG: function () {
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var svg = this.SVG(); this.SVGhandleSpace(svg);
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var encoding = this.Get("encoding");
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for (var i = 0, m = this.data.length; i < m; i++)
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{svg.Add(this.data[i].toSVG(encoding),svg.w,0)}
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svg.Clean();
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this.SVGhandleColor(svg);
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this.SVGsaveData(svg);
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return svg;
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}
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});
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MML.xml.Augment({
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toSVG: function (encoding) {
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//
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// Get size of xml content
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//
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var span = SVG.textSVG.parentNode;
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SVG.mathDiv.style.width = "auto"; // Firefox returns offsetWidth = 0 without this
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span.insertBefore(this.div,SVG.textSVG);
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var w = this.div.offsetWidth, h = this.div.offsetHeight;
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var strut = MathJax.HTML.addElement(this.div,"span",{
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style:{display:"inline-block", overflow:"hidden", height:h+"px",
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width:"1px", marginRight:"-1px"}
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});
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var d = this.div.offsetHeight - h; h -= d;
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this.div.removeChild(strut);
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span.removeChild(this.div); SVG.mathDiv.style.width = "";
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//
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// Create foreignObject element for the content
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//
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var scale = 1000/SVG.em;
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var svg = BBOX.FOREIGN({
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y:(-h)+"px", width:w+"px", height:(h+d)+"px",
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transform:"scale("+scale+") matrix(1 0 0 -1 0 0)"
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});
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//
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// Add the children to the foreignObject
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//
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for (var i = 0, m = this.data.length; i < m; i++)
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{svg.element.appendChild(this.data[i].cloneNode(true))}
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//
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// Set the scale and finish up
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//
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svg.w = w*scale; svg.h = h*scale; svg.d = d*scale;
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svg.r = svg.w; svg.l = 0;
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svg.Clean();
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this.SVGsaveData(svg);
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return svg;
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}
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});
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MathJax.Hub.Startup.signal.Post("SVG annotation-xml Ready");
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MathJax.Ajax.loadComplete(SVG.autoloadDir+"/annotation-xml.js");
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});
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