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Make MathJax a setting and load it only if enabled

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This commit is contained in:
Lorenz Hübschle-Schneider 2015-03-21 12:25:18 +01:00
parent 5740c647d6
commit be8ab42b7c
3 changed files with 45 additions and 15 deletions
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21
index.html
View file

@ -36,15 +36,6 @@
<script type="text/javascript" src="js/models.js"></script>
<script type="text/javascript" src="js/plugins.js"></script>
<script type="text/javascript" src="3rdparty/favico-0.3.5.min.js"></script>
<script src='https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML'></script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
tex2jax: {
inlineMath: [ ['$$','$$'], ["\\(","\\)"] ],
displayMath: [ ["\\[","\\]"] ]
}
});
</script>
</head>
<body ng-controller="WeechatCtrl" ng-keydown="handleKeyPress($event)" ng-keyup="handleKeyRelease($event)" ng-keypress="handleKeyPress($event)" ng-class="{'no-overflow': connected}" lang="en-US">
<link ng-href="css/themes/{{settings.theme}}.css" rel="stylesheet" media="screen" />
@ -287,7 +278,7 @@ $ openssl req -nodes -newkey rsa:4096 -keyout relay.pem -x509 -days 365 -out rel
<td class="prefix"><a ng-click="addMention(bufferline.prefix)"><span ng-repeat="part in ::bufferline.prefix" ng-class="::part.classes" ng-bind="::part.text"></span></a></td><!--
--><td class="message"><!--
--><div ng-repeat="metadata in ::bufferline.metadata" plugin data="::metadata"></div><!--
--><span ng-repeat="part in ::bufferline.content" class="text" ng-class="::part.classes.concat(['line-' + part.$$hashKey.replace(':','_')])" ng-bind-html="::part.text | linky:'_blank' | DOMfilter:'irclinky' | DOMfilter:'emojify':settings.enableJSEmoji | DOMfilter:'inlinecolour' | DOMfilter:'mathjax':('.line-' + part.$$hashKey.replace(':','_'))"></span>
--><span ng-repeat="part in ::bufferline.content" class="text" ng-class="::part.classes.concat(['line-' + part.$$hashKey.replace(':','_')])" ng-bind-html="::part.text | linky:'_blank' | DOMfilter:'irclinky' | DOMfilter:'emojify':settings.enableJSEmoji | DOMfilter:'inlinecolour' | DOMfilter:'mathjax':('.line-' + part.$$hashKey.replace(':','_')):settings.enableMathjax"></span>
</td>
</tr>
<tr class="readmarker" ng-if="activeBuffer().lastSeen==$index">
@ -457,6 +448,16 @@ $ openssl req -nodes -newkey rsa:4096 -keyout relay.pem -x509 -days 365 -out rel
</div>
</form>
</li>
<li>
<form class="form-inline" role="form">
<div class="checkbox">
<label>
<input type="checkbox" ng-model="settings.enableMathjax">
Enable LaTeX math rendering
</label>
</div>
</form>
</li>
</ul>
</div>
<div class="modal-footer">

12
js/filters.js
View file

@ -73,9 +73,11 @@ weechat.filter('DOMfilter', ['$filter', '$sce', function($filter, $sce) {
return text;
}
// hacky way to pass an extra argument without using .apply, which
// hacky way to pass extra arguments without using .apply, which
// would require assembling an argument array. PERFORMANCE!!!
var extraArgument = (arguments.length > 2) ? arguments[2] : null;
var thirdArgument = (arguments.length > 3) ? arguments[3] : null;
var filterFunction = $filter(filter);
var el = document.createElement('div');
el.innerHTML = text;
@ -83,7 +85,7 @@ weechat.filter('DOMfilter', ['$filter', '$sce', function($filter, $sce) {
// Recursive DOM-walking function applying the filter to the text nodes
var process = function(node) {
if (node.nodeType === 3) { // text node
var value = filterFunction(node.nodeValue, extraArgument);
var value = filterFunction(node.nodeValue, extraArgument, thirdArgument);
if (value !== node.nodeValue) {
// we changed something. create a new node to replace the current one
// we could also only add its children but that would probably incur
@ -151,10 +153,12 @@ weechat.filter('emojify', function() {
});
weechat.filter('mathjax', function() {
return function(text, selector) {
return function(text, selector, enabled) {
if (!enabled || typeof(MathJax) === "undefined") {
return text;
}
if (text.indexOf("$$") != -1 || text.indexOf("\\[") != -1 || text.indexOf("\\(") != -1) {
// contains math
//var math = document.getElementById("MathExample");
var math = document.querySelector(selector);
MathJax.Hub.Queue(["Typeset",MathJax.Hub,math]);
}

27
js/glowingbear.js
View file

@ -36,7 +36,8 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
'fontsize': '14px',
'fontfamily': (utils.isMobileUi() ? 'sans-serif' : 'Inconsolata, Consolas, Monaco, Ubuntu Mono, monospace'),
'readlineBindings': false,
'enableJSEmoji': false
'enableJSEmoji': false,
'enableMathjax': false,
});
$scope.settings = settings;
@ -393,6 +394,30 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
}
});
// To prevent unnecessary loading times for users who don't
// want MathJax, load it only if the setting is enabled.
// This also fires when the page is loaded if enabled.
settings.addCallback('enableMathjax', function(enabled) {
if (enabled && !$rootScope.mathjax_init) {
// Load MathJax only once
$rootScope.mathjax_init = true;
(function () {
var head = document.getElementsByTagName("head")[0], script;
script = document.createElement("script");
script.type = "text/x-mathjax-config";
script[(window.opera ? "innerHTML" : "text")] =
"MathJax.Hub.Config({\n" +
" tex2jax: { inlineMath: [['$$','$$'], ['\\\\(','\\\\)']], displayMath: [['\\\\[','\\\\]']] },\n" +
"});";
head.appendChild(script);
script = document.createElement("script");
script.type = "text/javascript";
script.src = "//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML";
head.appendChild(script);
})();
}
});
// Update font family when changed
settings.addCallback('fontfamily', function(fontfamily) {
utils.changeClassStyle('favorite-font', 'fontFamily', fontfamily);