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Diffstat (limited to 'js/mathjax/jax/output/PlainSource/jax.js')
| -rw-r--r-- | js/mathjax/jax/output/PlainSource/jax.js | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/js/mathjax/jax/output/PlainSource/jax.js b/js/mathjax/jax/output/PlainSource/jax.js new file mode 100644 index 0000000..fb62d44 --- /dev/null +++ b/js/mathjax/jax/output/PlainSource/jax.js @@ -0,0 +1,186 @@ +// @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 |