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optimize what gets passed to emojione.unicodeToImage

This commit is contained in:
kurros 2016-01-02 12:14:48 -05:00
parent 2a5b80da1d
commit dfffbeec46
1 changed files with 8 additions and 1 deletions
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9
js/filters.js
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@ -161,7 +161,14 @@ weechat.filter('getBufferQuickKeys', function () {
weechat.filter('emojify', function() {
return function(text, enable_JS_Emoji) {
if (enable_JS_Emoji === true && window.emojione !== undefined) {
return emojione.unicodeToImage(text);
// Emoji live in the D800-DFFF surrogate plane; only bother passing
// this range to CPU-expensive unicodeToImage();
var emojiRegex = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
if (emojiRegex.test(text)) {
return emojione.unicodeToImage(text);
} else {
return(text);
}
} else {
return(text);
}