tobast/glowingbear-mainbox
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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
commit be8ab42b7c
3 changed files with 45 additions and 15 deletions
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27
js/glowingbear.js
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@ -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);