// @license magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7&dn=apache-2.0.txt Apache-2.0
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*************************************************************
*
* MathJax/jax/output/CommonHTML/autoload/menclose.js
*
* Implements the CommonHTML output for <menclose> elements.
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2015-2020 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
MathJax.Hub.Register.StartupHook("CommonHTML Jax Ready",function () {
var VERSION = "2.7.9";
var MML = MathJax.ElementJax.mml,
CHTML = MathJax.OutputJax.CommonHTML;
var SVGNS = "http://www.w3.org/2000/svg";
var ARROWX = 4, ARROWDX = 1, ARROWY = 2;
MML.menclose.Augment({
toCommonHTML: function (node) {
var values = this.getValues("notation","thickness","padding");
if (values.thickness == null) values.thickness = ".075em";
if (values.padding == null) values.padding = ".2em";
//
// Get DOM nodes
//
node = this.CHTMLdefaultNode(node,{childNodes:"mjx-box", forceChild:true});
var child = node.firstChild, cbox = this.CHTMLbboxFor(0);
//
// Get the padding and rule thickness
//
var p = this.CHTMLlength2em(values.padding,1/CHTML.em); // padding for enclosure
var t = this.CHTMLlength2em(values.thickness,1/CHTML.em); // thickness of lines
t = Math.max(1,Math.round(t*CHTML.em))/CHTML.em;
var SOLID = CHTML.Px(t)+" solid";
var bb = {L:p, R:p, T:p, B:p, H:cbox.h+p, D:cbox.d+p, W:cbox.w+2*p};
child.style.padding = CHTML.Em(p);
//
// Eliminate duplicate notations.
//
var notations = MathJax.Hub.SplitList(values.notation), notation = {};
for (var i = 0, m = notations.length; i < m; i++) notation[notations[i]] = true;
if (notation[MML.NOTATION.UPDIAGONALARROW]) delete notation[MML.NOTATION.UPDIAGONALSTRIKE];
//
// Add the needed notations
//
for (var n in notation) {
if (notation.hasOwnProperty(n)) {
if (this.CHTMLnotation[n] && this.CHTMLnotation.hasOwnProperty(n))
this.CHTMLnotation[n].call(this,child,cbox,bb,p,t,SOLID);
}
}
//
// Adjust the bounding box
//
var BBOX = this.CHTML;
BBOX.w += bb.L + bb.R; BBOX.r += BBOX.L; if (BBOX.w > BBOX.r) BBOX.r = BBOX.w;
BBOX.h += bb.T; if (BBOX.h > BBOX.t) BBOX.t = BBOX.h;
BBOX.d += bb.B; if (BBOX.d > BBOX.b) BBOX.b = BBOX.d;
return node;
},
//
// The various notations and their implementations
//
CHTMLnotation: {
/********************************************************/
box: function (child,cbox,bb,p,t,SOLID) {
p -= t;
child.style.padding = CHTML.Em(p);
child.style.border = SOLID;
},
/********************************************************/
roundedbox: function (child,cbox,bb,p,t,SOLID) {
var r = Math.min(cbox.w,cbox.h+cbox.d+2*p)/4;
CHTML.addElement(child.parentNode,"mjx-box",{
style: {
padding:CHTML.Em(p-t), border:SOLID, "border-radius":CHTML.Em(r),
height:CHTML.Em(cbox.h+cbox.d), "vertical-align":CHTML.Em(-bb.D),
width:CHTML.Em(cbox.w), "margin-left":CHTML.Em(-bb.W)
}
});
},
/********************************************************/
circle: function (child,cbox,bb,p,t,SOLID) {
var H = bb.H, D = bb.D, W = bb.W;
var svg = this.CHTMLsvg(child,bb,t);
this.CHTMLsvgElement(svg.firstChild,"ellipse",{
rx:CHTML.Px(W/2-t/2), ry:CHTML.Px((H+D)/2-t/2),
cx:CHTML.Px(W/2), cy:CHTML.Px((H+D)/2)
});
this.CHTMLsvgViewBox(svg);
},
/********************************************************/
left: function (child,cbox,bb,p,t,SOLID) {
child.style.borderLeft = SOLID;
child.style.paddingLeft = CHTML.Em(p-t);
},
/********************************************************/
right: function (child,cbox,bb,p,t,SOLID) {
child.style.borderRight = SOLID;
child.style.paddingRight = CHTML.Em(p-t);
},
/********************************************************/
top: function (child,cbox,bb,p,t,SOLID) {
child.style.borderTop = SOLID;
child.style.paddingTop = CHTML.Em(p-t);
},
/********************************************************/
bottom: function (child,cbox,bb,p,t,SOLID) {
child.style.borderBottom = SOLID;
child.style.paddingBottom = CHTML.Em(p-t);
},
/********************************************************/
actuarial: function (child,cbox,bb,p,t,SOLID) {
child.style.borderTop = child.style.borderRight = SOLID;
child.style.paddingTop = child.style.paddingRight = CHTML.Em(p-t);
},
/********************************************************/
madruwb: function (child,cbox,bb,p,t,SOLID) {
child.style.borderBottom = child.style.borderRight = SOLID;
child.style.paddingBottom = child.style.paddingRight = CHTML.Em(p-t);
},
/********************************************************/
verticalstrike: function (child,cbox,bb,p,t,SOLID) {
CHTML.addElement(child.parentNode,"mjx-box",{
style: {
"border-left":SOLID,
height:CHTML.Em(bb.H+bb.D), "vertical-align":CHTML.Em(-bb.D),
width:CHTML.Em(cbox.w/2+p-t/2), "margin-left":CHTML.Em(-cbox.w/2-p-t/2)
}
});
},
/********************************************************/
horizontalstrike: function (child,cbox,bb,p,t,SOLID) {
CHTML.addElement(child.parentNode,"mjx-box",{
style: {
"border-top":SOLID,
height:CHTML.Em((bb.H+bb.D)/2-t/2), "vertical-align":CHTML.Em(-bb.D),
width:CHTML.Em(bb.W), "margin-left":CHTML.Em(-bb.W)
}
});
},
/********************************************************/
updiagonalstrike: function (child,cbox,bb,p,t,SOLID) {
var H = bb.H, D = bb.D, W = bb.W;
var svg = this.CHTMLsvg(child,bb,t);
this.CHTMLsvgElement(svg.firstChild,"line",{
x1:CHTML.Px(t/2), y1:CHTML.Px(H+D-t), x2:CHTML.Px(W-t), y2:CHTML.Px(t/2)
});
this.CHTMLsvgViewBox(svg);
},
/********************************************************/
downdiagonalstrike: function (child,cbox,bb,p,t,SOLID) {
var H = bb.H, D = bb.D, W = bb.W;
var svg = this.CHTMLsvg(child,bb,t);
this.CHTMLsvgElement(svg.firstChild,"line",{
x1:CHTML.Px(t/2), y1:CHTML.Px(t/2), x2:CHTML.Px(W-t), y2:CHTML.Px(H+D-t)
});
this.CHTMLsvgViewBox(svg);
},
/********************************************************/
updiagonalarrow: function (child,cbox,bb,p,t,SOLID) {
var H = bb.H + bb.D - t, W = bb.W - t/2;
var a = Math.atan2(H,W)*(-180/Math.PI).toFixed(3);
var R = Math.sqrt(H*H + W*W);
var svg = this.CHTMLsvg(child,bb,t);
var g = this.CHTMLsvgElement(svg.firstChild,"g",{
fill:"currentColor",
transform:"translate("+this.CHTMLpx(t/2)+" "+this.CHTMLpx(H+t/2)+") rotate("+a+")"
});
var x = t * ARROWX, dx = t * ARROWDX, y = t * ARROWY;
this.CHTMLsvgElement(g,"line",{
x1:CHTML.Px(t/2), y1:0, x2:CHTML.Px(R-x), y2:0
});
this.CHTMLsvgElement(g,"path",{
d: "M "+this.CHTMLpx(R-x)+",0 " +
"L "+this.CHTMLpx(R-x-dx)+","+this.CHTMLpx(y) +
"L "+this.CHTMLpx(R)+",0 " +
"L "+this.CHTMLpx(R-x-dx)+","+this.CHTMLpx(-y),
stroke:"none"
});
this.CHTMLsvgViewBox(svg);
},
/********************************************************/
phasorangle: function (child,cbox,bb,p,t,SOLID) {
var P = p, H = bb.H, D = bb.D;
p = (H+D)/2;
var W = bb.W + p - P; bb.W = W; bb.L = p;
child.style.margin = "0 0 0 "+CHTML.Em(p-P);
var svg = this.CHTMLsvg(child,bb,t);
this.CHTMLsvgElement(svg.firstChild,"path",{
d: "M "+this.CHTMLpx(p)+",1 " +
"L 1,"+this.CHTMLpx(H+D-t)+" L "+this.CHTMLpx(W)+","+this.CHTMLpx(H+D-t)
});
this.CHTMLsvgViewBox(svg);
},
/********************************************************/
longdiv: function (child,cbox,bb,p,t,SOLID) {
bb.W += 1.5*p; bb.L += 1.5*p;
var H = bb.H, D = bb.D, W = bb.W;
child.style.margin = "0 0 0 "+CHTML.Em(1.5*p);
var svg = this.CHTMLsvg(child,bb,t);
this.CHTMLsvgElement(svg.firstChild,"path",{
d: "M "+this.CHTMLpx(W)+",1 L 1,1 "+
"a"+this.CHTMLpx(p)+","+this.CHTMLpx((H+D)/2-t/2)+" 0 0,1 1,"+this.CHTMLpx(H+D-1.5*t)
});
this.CHTMLsvgViewBox(svg);
},
/********************************************************/
radical: function (child,cbox,bb,p,t,SOLID) {
bb.W += 1.5*p; bb.L += 1.5*p;
var H = bb.H, D = bb.D, W = bb.W;
child.style.margin = "0 0 0 "+CHTML.Em(1.5*p);
var svg = this.CHTMLsvg(child,bb,t);
this.CHTMLsvgElement(svg.firstChild,"path",{
d: "M 1,"+this.CHTMLpx(.6*(H+D)) +
" L "+this.CHTMLpx(p)+","+this.CHTMLpx(H+D) +
" L "+this.CHTMLpx(2*p)+",1 L "+this.CHTMLpx(W)+",1"
});
this.CHTMLsvgViewBox(svg);
}
/********************************************************/
},
//
// Pixels with no "px"
//
CHTMLpx: function (m) {
m *= CHTML.em;
if (Math.abs(m) < .1) return "0";
return m.toFixed(1).replace(/\.0$/,"");
},
//
// Create the SVG element and position it over the
// contents
//
CHTMLsvg: function (node,bbox,t) {
var svg = document.createElementNS(SVGNS,"svg");
if (svg.style) {
svg.style.width = CHTML.Em(bbox.W);
svg.style.height = CHTML.Em(bbox.H+bbox.D);
svg.style.verticalAlign = CHTML.Em(-bbox.D);
svg.style.marginLeft = CHTML.Em(-bbox.W);
}
var g = this.CHTMLsvgElement(svg,"g",{"stroke-width":CHTML.Px(t)});
if (this.CHTML.scale !== 1) {
g.setAttribute('transform', 'scale('+this.CHTML.scale+')');
}
node.parentNode.appendChild(svg);
return svg;
},
//
CHTMLsvgViewBox: function (svg) {
var bbox = svg.getBBox();
svg.setAttribute('viewBox', [bbox.x, bbox.y, bbox.width, bbox.height].join(' '));
},
//
// Add an SVG element to the given svg node
//
CHTMLsvgElement: function (svg,type,def) {
var obj = document.createElementNS(SVGNS,type); obj.isMathJax = true;
if (def) {for (var id in def) {if (def.hasOwnProperty(id)) {obj.setAttributeNS(null,id,def[id].toString())}}}
svg.appendChild(obj);
return obj;
}
});
//
// Just use default toCommonHTML for EI8
//
if (!document.createElementNS) delete MML.menclose.prototype.toCommonHTML;
MathJax.Hub.Startup.signal.Post("CommonHTML menclose Ready");
MathJax.Ajax.loadComplete(CHTML.autoloadDir+"/menclose.js");
});
// @license-end
