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mglyph.js

mglyph.js 3.2 KB
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  1. /* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
    2. 

  2. /* vim: set ts=2 et sw=2 tw=80: */
    3. 

  3. 

  4. /*************************************************************
    5. 

  5.  *
    6. 

  6.  *  MathJax/jax/output/HTML-CSS/autoload/mglyph.js
    7. 

  7.  *  
    8. 

  8.  *  Implements the HTML-CSS output for <mglyph> elements.
    9. 

  9.  *
    10. 

  10.  *  ---------------------------------------------------------------------
    11. 

  11.  *  
    12. 

  12.  *  Copyright (c) 2010-2013 The MathJax Consortium
    13. 

  13.  * 
    14. 

  14.  *  Licensed under the Apache License, Version 2.0 (the "License");
    15. 

  15.  *  you may not use this file except in compliance with the License.
    16. 

  16.  *  You may obtain a copy of the License at
    17. 

  17.  * 
    18. 

  18.  *      http://www.apache.org/licenses/LICENSE-2.0
    19. 

  19.  * 
    20. 

  20.  *  Unless required by applicable law or agreed to in writing, software
    21. 

  21.  *  distributed under the License is distributed on an "AS IS" BASIS,
    22. 

  22.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    23. 

  23.  *  See the License for the specific language governing permissions and
    24. 

  24.  *  limitations under the License.
    25. 

  25.  */MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function(){var g=MathJax.ElementJax.mml,c=MathJax.OutputJax["HTML-CSS"],k=MathJax.Localization;g.mglyph.Augment({toHTML:function(a,h){var e=a,b=this.getValues("src","width","height","valign","alt");a=this.HTMLcreateSpan(a);if(""===b.src){var d=this.Get("index");if(d){h=this.HTMLgetVariant();var f=h.defaultFont;f&&(f.noStyleChar=!0,f.testString=String.fromCharCode(d)+"ABCabc",c.Font.testFont(f)?this.HTMLhandleVariant(a,h,String.fromCharCode(d)):(""===b.alt&&(b.alt=k._(["MathML","BadMglyphFont"],"Bad font: %1",f.family)),b=g.merror(b.alt).With({mathsize:"75%"}),this.Append(b),b.toHTML(a),this.data.pop(),a.bbox=b.HTMLspanElement().bbox))}}else this.img||(this.img=g.mglyph.GLYPH[b.src]),this.img||(this.img=g.mglyph.GLYPH[b.src]={img:new Image,status:"pending"},d=this.img.img,d.onload=MathJax.Callback(["HTMLimgLoaded",this]),d.onerror=MathJax.Callback(["HTMLimgError",this]),d.src=b.src,MathJax.Hub.RestartAfter(d.onload)),"OK"!==this.img.status?(b=g.merror(k._(["MathML","BadMglyph"],"Bad mglyph: %1",b.src)).With({mathsize:"75%"}),this.Append(b),b.toHTML(a),this.data.pop(),a.bbox=b.HTMLspanElement().bbox):(f=this.HTMLgetMu(a),d=c.addElement(a,"img",{isMathJax:!0,src:b.src,alt:b.alt,title:b.alt}),b.width&&(String(b.width).match(/^\s*-?\d+\s*$/)&&(b.width+="px"),d.style.width=c.Em(c.length2em(b.width,f,this.img.img.width/c.em))),b.height&&(String(b.height).match(/^\s*-?\d+\s*$/)&&(b.height+="px"),d.style.height=c.Em(c.length2em(b.height,f,this.img.img.height/c.em))),a.bbox.w=a.bbox.rw=d.offsetWidth/c.em,a.bbox.h=d.offsetHeight/c.em,b.valign&&(String(b.valign).match(/^\s*-?\d+\s*$/)&&(b.valign+="px"),a.bbox.d=-c.length2em(b.valign,f,this.img.img.height/c.em),d.style.verticalAlign=c.Em(-a.bbox.d),a.bbox.h-=a.bbox.d));e.bbox?a.bbox&&(e.bbox.w+=a.bbox.w,e.bbox.w>e.bbox.rw&&(e.bbox.rw=e.bbox.w),a.bbox.h>e.bbox.h&&(e.bbox.h=a.bbox.h),a.bbox.d>e.bbox.d&&(e.bbox.d=a.bbox.d)):e.bbox={w:a.bbox.w,h:a.bbox.h,d:a.bbox.d,rw:a.bbox.rw,lw:a.bbox.lw};this.HTMLhandleSpace(a);this.HTMLhandleColor(a);return a},HTMLimgLoaded:function(a,c){"string"===typeof a&&(c=a);this.img.status=c||"OK"},HTMLimgError:function(){this.img.img.onload("error")}},{GLYPH:{}});MathJax.Hub.Startup.signal.Post("HTML-CSS mglyph Ready");MathJax.Ajax.loadComplete(c.autoloadDir+"/mglyph.js")});
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