mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Math
synced 2024-12-20 03:20:45 +00:00
318 lines
14 KiB
JavaScript
318 lines
14 KiB
JavaScript
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/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/*************************************************************
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*
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* MathJax/jax/output/HTML-CSS/autoload/menclose.js
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*
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* Implements the HTML-CSS output for <menclose> elements.
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2010-2013 The MathJax Consortium
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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("HTML-CSS Jax Ready",function () {
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var VERSION = "2.3";
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var MML = MathJax.ElementJax.mml,
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HTMLCSS = MathJax.OutputJax["HTML-CSS"];
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var SVGNS = "http://www.w3.org/2000/svg";
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var VMLNS = "urn:schemas-microsoft-com:vml";
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var vmlns = "mjxvml";
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MML.menclose.Augment({
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toHTML: function (span) {
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var values = this.getValues("notation","thickness","padding","mathcolor","color");
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if (values.color && !this.mathcolor) {values.mathcolor = values.color}
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if (values.thickness == null) {values.thickness = ".075em"}
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if (values.padding == null) {values.padding = ".2em"}
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span = this.HTMLcreateSpan(span);
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var mu = this.HTMLgetMu(span), scale = this.HTMLgetScale();
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var p = HTMLCSS.length2em(values.padding,mu,1/HTMLCSS.em) * scale; // padding for enclosure
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var t = HTMLCSS.length2em(values.thickness,mu,1/HTMLCSS.em); // thickness of lines (not scaled, see issue #414)
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var SOLID = HTMLCSS.Em(t)+" solid";
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var stack = HTMLCSS.createStack(span);
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var base = HTMLCSS.createBox(stack);
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this.HTMLmeasureChild(0,base);
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var H = base.bbox.h+p+t, D = base.bbox.d+p+t, W = base.bbox.w+2*(p+t);
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var frame = HTMLCSS.createFrame(stack,H+D,0,W,t,"none");
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frame.id = "MathJax-frame-"+this.spanID;
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HTMLCSS.addBox(stack,frame); stack.insertBefore(frame,base); // move base to above background
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var T = 0, B = 0, R = 0, L = 0, dx = 0, dy = 0; var svg, vml;
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var w, h, r;
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if (!values.mathcolor) {values.mathcolor = "black"} else {span.style.color = values.mathcolor}
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// perform some reduction e.g. eliminate duplicate notations.
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var nl = MathJax.Hub.SplitList(values.notation), notation = {};
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for (var i = 0, m = nl.length; i < m; i++) notation[nl[i]] = true;
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if (notation[MML.NOTATION.UPDIAGONALARROW]) notation[MML.NOTATION.UPDIAGONALSTRIKE] = false;
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var line;
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for (var n in notation) {
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if (!notation.hasOwnProperty(n) || !notation[n]) continue;
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switch (n) {
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case MML.NOTATION.BOX:
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frame.style.border = SOLID; if (!HTMLCSS.msieBorderWidthBug) {T = B = L = R = t}
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break;
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case MML.NOTATION.ROUNDEDBOX:
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if (HTMLCSS.useVML) {
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if (!vml) {vml = this.HTMLvml(stack,H,D,W,t,values.mathcolor)}
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// roundrect.arcsize can't be set in IE8 standards mode, so use a path
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r = Math.floor(1000*Math.min(W,H+D)-2*t);
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w = Math.floor(4000*(W-2*t)), h = Math.floor(4000*(H+D-2*t));
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this.HTMLvmlElement(vml,"shape",{
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style: {width:this.HTMLpx(W-2*t),height:this.HTMLpx(H+D-2*t),
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left:this.HTMLpx(t,.5),top:this.HTMLpx(t,.5)},
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path: "m "+r+",0 qx 0,"+r+" l 0,"+(h-r)+" qy "+r+","+h+" "+
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"l "+(w-r)+","+h+" qx "+w+","+(h-r)+" l "+w+","+r+" qy "+(w-r)+",0 x e",
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coordsize: w+","+h
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});
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} else {
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if (!svg) {svg = this.HTMLsvg(stack,H,D,W,t,values.mathcolor)}
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this.HTMLsvgElement(svg.firstChild,"rect",{
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x:1, y:1, width:this.HTMLpx(W-t)-1,
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height:this.HTMLpx(H+D-t)-1, rx:this.HTMLpx(Math.min(H+D,W)/4)
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});
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}
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break;
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case MML.NOTATION.CIRCLE:
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if (HTMLCSS.useVML) {
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if (!vml) {vml = this.HTMLvml(stack,H,D,W,t,values.mathcolor)}
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this.HTMLvmlElement(vml,"oval",{
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style: {width:this.HTMLpx(W-2*t),height:this.HTMLpx(H+D-2*t),
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left:this.HTMLpx(t,.5),top:this.HTMLpx(t,.5)}
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});
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} else {
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if (!svg) {svg = this.HTMLsvg(stack,H,D,W,t,values.mathcolor)}
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this.HTMLsvgElement(svg.firstChild,"ellipse",{
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rx:this.HTMLpx(W/2-t), ry:this.HTMLpx((H+D)/2-t),
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cx:this.HTMLpx(W/2), cy:this.HTMLpx((H+D)/2)
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});
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}
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break;
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case MML.NOTATION.LEFT:
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frame.style.borderLeft = SOLID; if (!HTMLCSS.msieBorderWidthBug) {L = t}
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break;
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case MML.NOTATION.ACTUARIAL:
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frame.style.borderTop = SOLID; if (!HTMLCSS.msieBorderWidthBug) {T = t; frame.bbox.w += p-t}
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case MML.NOTATION.RIGHT:
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frame.style.borderRight = SOLID; if (!HTMLCSS.msieBorderWidthBug) {R = t}
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break;
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case MML.NOTATION.VERTICALSTRIKE:
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line = HTMLCSS.createRule(stack,H+D-t/2,0,t);
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HTMLCSS.addBox(stack,line); HTMLCSS.placeBox(line,p+t+base.bbox.w/2,-D,true);
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break;
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case MML.NOTATION.TOP:
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frame.style.borderTop = SOLID; if (!HTMLCSS.msieBorderWidthBug) {T = t}
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break;
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case MML.NOTATION.BOTTOM:
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frame.style.borderBottom = SOLID; if (!HTMLCSS.msieBorderWidthBug) {B = t}
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break;
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case MML.NOTATION.HORIZONTALSTRIKE:
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line = HTMLCSS.createRule(stack,t,0,W-t/2);
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HTMLCSS.addBox(stack,line); HTMLCSS.placeBox(line,0,(H+D)/2-D,true);
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break;
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case MML.NOTATION.UPDIAGONALSTRIKE:
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if (HTMLCSS.useVML) {
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if (!vml) {vml = this.HTMLvml(stack,H,D,W,t,values.mathcolor)}
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line = this.HTMLvmlElement(vml,"line",{from: "0,"+this.HTMLpx(H+D-t), to: this.HTMLpx(W)+",0"});
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} else {
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if (!svg) {svg = this.HTMLsvg(stack,H,D,W,t,values.mathcolor)}
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this.HTMLsvgElement(svg.firstChild,"line",{
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x1:1, y1:this.HTMLpx(H+D-t), x2:this.HTMLpx(W-t), y2:this.HTMLpx(t)
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});
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}
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break;
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case MML.NOTATION.UPDIAGONALARROW:
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if (HTMLCSS.useVML) {
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if (!vml) {vml = this.HTMLvml(stack,H,D,W,t,values.mathcolor)}
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line = this.HTMLvmlElement(vml,"line",{from: "0,"+this.HTMLpx(H+D-t), to: this.HTMLpx(W)+","+this.HTMLpx(t)});
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this.HTMLvmlElement(line,"stroke",{endarrow:"classic"});
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} else {
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if (!svg) {svg = this.HTMLsvg(stack,H,D,W,t,values.mathcolor)}
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var l = Math.sqrt(W*W + (H+D)*(H+D)), f = 1/l * 10*scale/HTMLCSS.em * t/.075;
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w = W * f; h = (H+D) * f; var x = W - t/2, y = t/2;
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if (y+h-.4*w < 0) {y = .4*w-h}
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this.HTMLsvgElement(svg.firstChild,"line",{
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x1:1, y1:this.HTMLpx(H+D-t), x2:this.HTMLpx(x-.7*w), y2:this.HTMLpx(y+.7*h)
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});
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this.HTMLsvgElement(svg.firstChild,"polygon",{
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points: this.HTMLpx(x)+","+this.HTMLpx(y)+" "
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+this.HTMLpx(x-w-.4*h)+","+this.HTMLpx(y+h-.4*w)+" "
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+this.HTMLpx(x-.7*w)+","+this.HTMLpx(y+.7*h)+" "
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+this.HTMLpx(x-w+.4*h)+","+this.HTMLpx(y+h+.4*w)+" "
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+this.HTMLpx(x)+","+this.HTMLpx(y),
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fill:values.mathcolor, stroke:"none"
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});
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}
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break;
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case MML.NOTATION.DOWNDIAGONALSTRIKE:
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if (HTMLCSS.useVML) {
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if (!vml) {vml = this.HTMLvml(stack,H,D,W,t,values.mathcolor)}
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this.HTMLvmlElement(vml,"line",{from: "0,0", to: this.HTMLpx(W)+","+this.HTMLpx(H+D-t)});
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} else {
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if (!svg) {svg = this.HTMLsvg(stack,H,D,W,t,values.mathcolor)}
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this.HTMLsvgElement(svg.firstChild,"line",{
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x1:1, y1:this.HTMLpx(t), x2:this.HTMLpx(W-t), y2:this.HTMLpx(H+D-t)
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});
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}
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break;
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case MML.NOTATION.MADRUWB:
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frame.style.borderBottom = SOLID;
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frame.style.borderRight = SOLID; if (!HTMLCSS.msieBorderWidthBug) {B = R = t}
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break;
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case MML.NOTATION.RADICAL:
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if (HTMLCSS.useVML) {
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if (!vml) {vml = this.HTMLvml(stack,H,D,W,t,values.mathcolor)}
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this.HTMLvmlElement(vml,"shape",{
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style: {width:this.HTMLpx(W), height:this.HTMLpx(H+D)},
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path: "m "+this.HTMLpt(t/2,.6*(H+D))+" l "+this.HTMLpt(p,H+D-t)+" "+
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this.HTMLpt(2*p,t/2)+" "+this.HTMLpt(W,t/2)+" e",
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coordsize: this.HTMLpt(W,H+D)
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});
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dx = p;
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} else {
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if (!svg) {svg = this.HTMLsvg(stack,H,D,W,t,values.mathcolor)}
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this.HTMLsvgElement(svg.firstChild,"path",{
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d: "M 1,"+this.HTMLpx(.6*(H+D)) +
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" L "+this.HTMLpx(p)+","+this.HTMLpx(H+D) +
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" L "+this.HTMLpx(2*p)+",1 L "+this.HTMLpx(W)+",1"
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});
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HTMLCSS.placeBox(svg.parentNode,0,p/2-D,true);
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dx = p; dy = t;
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}
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break;
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case MML.NOTATION.LONGDIV:
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if (HTMLCSS.useVML) {
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if (!vml) {vml = this.HTMLvml(stack,H,D,W,t,values.mathcolor)}
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this.HTMLvmlElement(vml,"line",{from: "0,"+this.HTMLpx(t/2), to: this.HTMLpx(W-t)+","+this.HTMLpx(t/2)});
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this.HTMLvmlElement(vml,"arc",{
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style: {width:this.HTMLpx(2*p),height:this.HTMLpx(H+D-2*t),
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left:this.HTMLpx(-p),top:this.HTMLpx(t)},
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startangle:"10", endangle:"170"
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});
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dx = p;
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} else {
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if (!svg) {svg = this.HTMLsvg(stack,H,D,W,t,values.mathcolor)}
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this.HTMLsvgElement(svg.firstChild,"path",{
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d: "M "+this.HTMLpx(W)+",1 L 1,1 "+
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"a"+this.HTMLpx(p)+","+this.HTMLpx((H+D)/2-t)+" 0 0,1 1,"+this.HTMLpx(H+D-2*t)
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});
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HTMLCSS.placeBox(svg.parentNode,0,t-D,true);
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dx = p; dy = t;
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}
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break;
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}
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}
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frame.style.width = HTMLCSS.Em(W-L-R); frame.style.height = HTMLCSS.Em(H+D-T-B);
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HTMLCSS.placeBox(frame,0,dy-D,true);
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HTMLCSS.placeBox(base,dx+p+t,0);
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this.HTMLhandleSpace(span);
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this.HTMLhandleColor(span);
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return span;
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},
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HTMLpx: function (n) {return (n*HTMLCSS.em)},
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HTMLpt: function (x,y) {return Math.floor(1000*x)+','+Math.floor(1000*y)},
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HTMLhandleColor: function (span) {
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var frame = document.getElementById("MathJax-frame-"+this.spanID);
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if (frame) {
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// mathcolor is handled in toHTML above
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var values = this.getValues("mathbackground","background");
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if (this.style && span.style.backgroundColor) {
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values.mathbackground = span.style.backgroundColor;
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span.style.backgroundColor = "";
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}
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if (values.background && !this.mathbackground) {values.mathbackground = values.background}
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if (values.mathbackground && values.mathbackground !== MML.COLOR.TRANSPARENT)
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{frame.style.backgroundColor = values.mathbackground}
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} else {this.SUPER(arguments).HTMLhandleColor.call(this,span)}
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},
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HTMLsvg: function (stack,H,D,W,t,color) {
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var svg = document.createElementNS(SVGNS,"svg");
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if (svg.style) {svg.style.width = HTMLCSS.Em(W); svg.style.height = HTMLCSS.Em(H+D)}
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var scale = HTMLCSS.createBox(stack); scale.appendChild(svg);
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HTMLCSS.placeBox(scale,0,-D,true);
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this.HTMLsvgElement(svg,"g",{fill:"none", stroke:color, "stroke-width":t*HTMLCSS.em});
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return svg;
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},
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HTMLsvgElement: function (svg,type,def) {
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var obj = document.createElementNS(SVGNS,type); obj.isMathJax = true;
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if (def) {for (var id in def) {if (def.hasOwnProperty(id)) {obj.setAttributeNS(null,id,def[id].toString())}}}
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svg.appendChild(obj);
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return obj;
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},
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HTMLvml: function (stack,H,D,W,t,color) {
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var vml = HTMLCSS.createFrame(stack,H+D,0,W,0,"none");
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HTMLCSS.addBox(stack,vml); HTMLCSS.placeBox(vml,0,-D,true);
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this.constructor.VMLcolor = color; this.constructor.VMLthickness = this.HTMLpx(t);
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return vml;
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},
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HTMLvmlElement: function (vml,type,def) {
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var obj = HTMLCSS.addElement(vml,vmlns+":"+type,{isMathJax:true});
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obj.style.position = "absolute"; obj.style.left = obj.style.top = 0;
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MathJax.Hub.Insert(obj,def); // IE8 needs to do this after obj is added to the page
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if (!def.fillcolor) {obj.fillcolor = "none"}
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if (!def.strokecolor) {obj.strokecolor = this.constructor.VMLcolor}
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if (!def.strokeweight) {obj.strokeweight =this.constructor.VMLthickness}
|
||
|
|
return obj;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
MathJax.Hub.Browser.Select({
|
||
|
|
MSIE: function (browser) {
|
||
|
|
//
|
||
|
|
// IE8 and below doesn't have SVG, so use VML
|
||
|
|
//
|
||
|
|
if ((document.documentMode||0) < 9) {
|
||
|
|
MML.menclose.Augment({HTMLpx: function (n,d) {return (n*HTMLCSS.em+(d||0))+"px"}});
|
||
|
|
HTMLCSS.useVML = true;
|
||
|
|
if (!document.namespaces[vmlns]) {
|
||
|
|
if (document.documentMode && document.documentMode === 8) {
|
||
|
|
document.namespaces.add(vmlns,VMLNS,"#default#VML");
|
||
|
|
} else {
|
||
|
|
document.namespaces.add(vmlns,VMLNS);
|
||
|
|
document.createStyleSheet().addRule(vmlns+"\\: *","{behavior: url(#default#VML)}");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
MathJax.Hub.Startup.signal.Post("HTML-CSS menclose Ready");
|
||
|
|
MathJax.Ajax.loadComplete(HTMLCSS.autoloadDir+"/menclose.js");
|
||
|
|
|
||
|
|
});
|
||
|
|
|