mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-10-30 18:22:25 -04:00
204 lines
8.2 KiB
JavaScript
204 lines
8.2 KiB
JavaScript
/*************************************************************
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*
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* MathJax/extensions/HelpDialog.js
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*
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* Implements the MathJax Help dialog box.
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2013-2015 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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(function (HUB,HTML,AJAX,OUTPUT,LOCALE) {
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var HELP = MathJax.Extension.Help = {
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version: "2.6.0"
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};
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var STIXURL = "http://www.stixfonts.org/";
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var MENU = MathJax.Menu;
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var FALSE, KEY;
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HUB.Register.StartupHook("MathEvents Ready",function () {
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FALSE = MathJax.Extension.MathEvents.Event.False;
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KEY = MathJax.Extension.MathEvents.Event.KEY;
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});
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var CONFIG = HUB.CombineConfig("HelpDialog",{
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styles: {
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"#MathJax_Help": {
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position:"fixed", left:"50%", width:"auto", "max-width": "90%", "text-align":"center",
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border:"3px outset", padding:"1em 2em", "background-color":"#DDDDDD", color:"black",
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cursor: "default", "font-family":"message-box", "font-size":"120%",
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"font-style":"normal", "text-indent":0, "text-transform":"none",
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"line-height":"normal", "letter-spacing":"normal", "word-spacing":"normal",
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"word-wrap":"normal", "white-space":"wrap", "float":"none", "z-index":201,
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"border-radius": "15px", // Opera 10.5 and IE9
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"-webkit-border-radius": "15px", // Safari and Chrome
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"-moz-border-radius": "15px", // Firefox
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"-khtml-border-radius": "15px", // Konqueror
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"box-shadow":"0px 10px 20px #808080", // Opera 10.5 and IE9
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"-webkit-box-shadow":"0px 10px 20px #808080", // Safari 3 and Chrome
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"-moz-box-shadow":"0px 10px 20px #808080", // Forefox 3.5
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"-khtml-box-shadow":"0px 10px 20px #808080", // Konqueror
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filter: "progid:DXImageTransform.Microsoft.dropshadow(OffX=2, OffY=2, Color='gray', Positive='true')" // IE
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},
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"#MathJax_Help.MathJax_MousePost": {
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outline:"none"
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},
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"#MathJax_HelpContent": {
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overflow:"auto", "text-align":"left", "font-size":"80%",
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padding:".4em .6em", border:"1px inset", margin:"1em 0px",
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"max-height":"20em", "max-width":"30em", "background-color":"#EEEEEE"
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},
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"#MathJax_HelpClose": {
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position:"absolute", top:".2em", right:".2em",
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cursor:"pointer",
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display:"inline-block",
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border:"2px solid #AAA",
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"border-radius":"18px",
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"-webkit-border-radius": "18px", // Safari and Chrome
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"-moz-border-radius": "18px", // Firefox
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"-khtml-border-radius": "18px", // Konqueror
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"font-family":"'Courier New',Courier",
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"font-size":"24px",
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color:"#F0F0F0"
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},
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"#MathJax_HelpClose span": {
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display:"block", "background-color":"#AAA", border:"1.5px solid",
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"border-radius":"18px",
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"-webkit-border-radius": "18px", // Safari and Chrome
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"-moz-border-radius": "18px", // Firefox
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"-khtml-border-radius": "18px", // Konqueror
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"line-height":0,
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padding:"8px 0 6px" // may need to be browser-specific
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},
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"#MathJax_HelpClose:hover": {
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color:"white!important",
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border:"2px solid #CCC!important"
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},
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"#MathJax_HelpClose:hover span": {
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"background-color":"#CCC!important"
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},
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"#MathJax_HelpClose:hover:focus": {
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outline:"none"
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}
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}
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});
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/*
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* Handle the Help Dialog box
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*/
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HELP.Dialog = function (event) {
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LOCALE.loadDomain("HelpDialog",["Post",HELP,event]);
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};
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HELP.Post = function (event) {
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this.div = MENU.Background(this);
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var help = HTML.addElement(this.div,"div",{
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id: "MathJax_Help", tabIndex: 0, onkeydown: HELP.Keydown
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},LOCALE._("HelpDialog",[
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["b",{style:{fontSize:"120%"}},[["Help","MathJax Help"]]],
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["div",{id: "MathJax_HelpContent", tabIndex: 0},[
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["p",{},[["MathJax",
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"*MathJax* is a JavaScript library that allows page authors to include " +
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"mathematics within their web pages. As a reader, you don't need to do " +
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"anything to make that happen."]]
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],
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["p",{},[["Browsers",
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"*Browsers*: MathJax works with all modern browsers including IE6+, Firefox 3+, " +
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"Chrome 0.2+, Safari 2+, Opera 9.6+ and most mobile browsers."]]
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],
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["p",{},[["Menu",
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"*Math Menu*: MathJax adds a contextual menu to equations. Right-click or " +
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"CTRL-click on any mathematics to access the menu."]]
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],
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["div",{style:{"margin-left":"1em"}},[
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["p",{},[["ShowMath",
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"*Show Math As* allows you to view the formula's source markup " +
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"for copy & paste (as MathML or in its original format)."]]
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],
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["p",{},[["Settings",
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"*Settings* gives you control over features of MathJax, such as the " +
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"size of the mathematics, and the mechanism used to display equations."]]
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],
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["p",{},[["Language",
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"*Language* lets you select the language used by MathJax for its menus " +
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"and warning messages."]]
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],
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]],
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["p",{},[["Zoom",
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"*Math Zoom*: If you are having difficulty reading an equation, MathJax can " +
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"enlarge it to help you see it better."]]
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],
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["p",{},[["Accessibilty",
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"*Accessibility*: MathJax will automatically work with screen readers to make " +
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"mathematics accessible to the visually impaired."]]
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],
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["p",{},[["Fonts",
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"*Fonts*: MathJax will use certain math fonts if they are installed on your " +
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"computer; otherwise, it will use web-based fonts. Although not required, " +
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"locally installed fonts will speed up typesetting. We suggest installing " +
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"the [STIX fonts](%1).",STIXURL]]
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]
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]],
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["a",{href:"http://www.mathjax.org/"},["www.mathjax.org"]],
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["span",{id: "MathJax_HelpClose", onclick: HELP.Remove,
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onkeydown: HELP.Keydown, tabIndex: 0, role: "button",
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"aria-label": LOCALE._(["HelpDialog","CloseDialog"],"Close help dialog")},
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[["span",{},["\u00D7"]]]
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]
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]));
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if (event.type === "mouseup") help.className += " MathJax_MousePost";
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help.focus();
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LOCALE.setCSS(help);
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var doc = (document.documentElement||{});
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var H = window.innerHeight || doc.clientHeight || doc.scrollHeight || 0;
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if (MENU.prototype.msieAboutBug) {
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help.style.width = "20em"; help.style.position = "absolute";
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help.style.left = Math.floor((document.documentElement.scrollWidth - help.offsetWidth)/2)+"px";
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help.style.top = (Math.floor((H-help.offsetHeight)/3)+document.body.scrollTop)+"px";
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} else {
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help.style.marginLeft = Math.floor(-help.offsetWidth/2)+"px";
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help.style.top = Math.floor((H-help.offsetHeight)/3)+"px";
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}
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};
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HELP.Remove = function (event) {
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if (HELP.div) {document.body.removeChild(HELP.div); delete HELP.div}
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};
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HELP.Keydown = function(event) {
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if (event.keyCode === KEY.ESCAPE ||
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(this.id === "MathJax_HelpClose" &&
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(event.keyCode === KEY.SPACE || event.keyCode === KEY.RETURN))) {
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HELP.Remove(event);
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MENU.CurrentNode().focus();
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FALSE(event);
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}
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},
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MathJax.Callback.Queue(
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HUB.Register.StartupHook("End Config",{}), // wait until config is complete
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["Styles",AJAX,CONFIG.styles],
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["Post",HUB.Startup.signal,"HelpDialig Ready"],
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["loadComplete",AJAX,"[MathJax]/extensions/HelpDialog.js"]
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);
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})(MathJax.Hub,MathJax.HTML,MathJax.Ajax,MathJax.OutputJax,MathJax.Localization);
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