// @license magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7dn=apache-2.0.txt Apache-2.0
/*************************************************************
*
* MathJax/jax/output/PlainSource/jax.js
*
* Implements the PlainSource OutputJax that displays whatever
* source there was, for assistive technology users who prefer this.
*
* ---------------------------------------------------------------------
*
* 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.
*/
(function(AJAX, HUB, HTML, PlainSource) {
var EVENT, TOUCH, HOVER; // filled in later
PlainSource.Augment({
settings: HUB.config.menuSettings,
Config: function() {
if (!this.require) this.require = [];
this.SUPER(arguments).Config.call(this);
this.require.push(MathJax.OutputJax.extensionDir + "/MathEvents.js");
},
Startup: function() {
//
// Set up event handling
//
EVENT = MathJax.Extension.MathEvents.Event;
TOUCH = MathJax.Extension.MathEvents.Touch;
HOVER = MathJax.Extension.MathEvents.Hover;
this.ContextMenu = EVENT.ContextMenu;
this.Mousedown = EVENT.AltContextMenu;
this.Mouseover = HOVER.Mouseover;
this.Mouseout = HOVER.Mouseout;
this.Mousemove = HOVER.Mousemove;
return AJAX.Styles(this.config.styles);
},
preTranslate: function(state) {
var scripts = state.jax[this.id],
i, m = scripts.length,
script, prev, span, div, jax;
//
// Loop through the scripts
//
for (i = 0; i < m; i++) {
script = scripts[i];
if (!script.parentNode) continue;
//
// Remove any existing output
//
prev = script.previousSibling;
if (prev && String(prev.className).match(/^MathJax(_PlainSource)?(_Display)?( MathJax_Process(ing|ed))?$/)) {
prev.parentNode.removeChild(prev);
}
//
// Add the span, and a div if in display mode
//
jax = script.MathJax.elementJax;
if (!jax) continue;
jax.PlainSource = {
display: (jax.root.Get("display") === "block")
}
span = div = HTML.Element("span", {
className: "MathJax_PlainSource",
id: jax.inputID + "-Frame",
isMathJax: true,
jaxID: this.id,
oncontextmenu: EVENT.Menu,
onmousedown: EVENT.Mousedown,
onmouseover: EVENT.Mouseover,
onmouseout: EVENT.Mouseout,
onmousemove: EVENT.Mousemove,
onclick: EVENT.Click,
ondblclick: EVENT.DblClick,
// Added for keyboard accessible menu.
onkeydown: EVENT.Keydown,
tabIndex: HUB.getTabOrder(jax)
},[["span"]]);
if (HUB.Browser.noContextMenu) {
span.ontouchstart = TOUCH.start;
span.ontouchend = TOUCH.end;
}
if (jax.PlainSource.display) {
div = HTML.Element("div", {
className: "MathJax_PlainSource_Display"
});
div.appendChild(span);
}
script.parentNode.insertBefore(div, script);
}
},
Translate: function(script, state) {
if (!script.parentNode) return;
//
// Get the data about the math
//
var jax = script.MathJax.elementJax,
math = jax.root,
span = document.getElementById(jax.inputID + "-Frame");
//
// Typeset the math
//
this.initPlainSource(math, span);
var source = jax.originalText;
if (jax.inputJax === "MathML") {
if ((jax.root.data[0].data.length > 0) && (jax.root.data[0].data[0].type === "semantics")) {
var annotations = jax.root.data[0].data[0].data;
for (var a = 0; a < annotations.length; a++){
if (annotations[a].attr.encoding === "application/x-tex"){
source = jax.root.data[0].data[0].data[a].data[0].data[0];
break;
}
if (annotations[a].attr.encoding === "text/x-asciimath") {
source = jax.root.data[0].data[0].data[a].data[0].data[0];
}
}
}
}
jax.PlainSource.source = source;
HTML.addText(span.firstChild,source);
},
postTranslate: function(state) {},
getJaxFromMath: function(math) {
if (math.parentNode.className.match(/MathJax_PlainSource_Display/)) math = math.parentNode;
do {math = math.nextSibling} while (math && math.nodeName.toLowerCase() !== "script");
return HUB.getJaxFor(math);
},
Zoom: function (jax,span,math,Mw,Mh) {
var pad = Math.round(span.parentNode.offsetWidth / 2);
span.style.whiteSpace = "pre";
HTML.addText(span,jax.PlainSource.source);
var mW = math.offsetWidth, mH = math.offsetHeight,
zW = span.offsetWidth, zH = span.offsetHeight;
var Y = -Math.round((zH+mH)/2) - (jax.PlainSource.display ? 0 : pad);
return {mW:mW, mH:mH, zW:zW, zH:zH, Y:Y};
},
initPlainSource: function(math, span) {},
Remove: function(jax) {
var span = document.getElementById(jax.inputID + "-Frame");
if (span) {
if (jax.PlainSource.display) span = span.parentNode;
span.parentNode.removeChild(span);
}
delete jax.PlainSource;
}
});
MathJax.Hub.Register.StartupHook("mml Jax Ready", function() {
MathJax.Hub.Register.StartupHook("onLoad", function() {
setTimeout(MathJax.Callback(["loadComplete", PlainSource, "jax.js"]), 0);
});
});
MathJax.Hub.Register.StartupHook("End Cookie", function() {
if (HUB.config.menuSettings.zoom !== "None") {
AJAX.Require("[MathJax]/extensions/MathZoom.js")
}
});
})(MathJax.Ajax, MathJax.Hub, MathJax.HTML, MathJax.OutputJax.PlainSource);
// @license-end
