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0c5becce0e
jQuery UI 1.13.0 changed the logic attaching the `_untrackClassesElement` listener in the `_classes` widget method; one of the side effects was calling `this._on` for each node that needed the listener. That caused a severe performance degradation for large comboboxes as each `_on` jQuery UI call causes a jQuery `add` call that calls Sizzle's `uniqueSort` underneath. Instead, collect the nodes that need the listener and then, outside of the loop, create a jQuery object out of them and attach the listener once. That's still slower than the jQuery 1.12 version but only slightly: 936 ms to 1.03s on a very large list on a recent MacBook Pro, compared to ~30 seconds before this patch. Fixes gh-2014 Closes gh-2037 |
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| .. | ||
| effects | ||
| i18n | ||
| vendor/jquery-color | ||
| widgets | ||
| .eslintrc.json | ||
| core.js | ||
| data.js | ||
| disable-selection.js | ||
| effect.js | ||
| focusable.js | ||
| form-reset-mixin.js | ||
| form.js | ||
| ie.js | ||
| jquery-patch.js | ||
| jquery-var-for-color.js | ||
| keycode.js | ||
| labels.js | ||
| plugin.js | ||
| position.js | ||
| safe-active-element.js | ||
| safe-blur.js | ||
| scroll-parent.js | ||
| tabbable.js | ||
| unique-id.js | ||
| version.js | ||
| widget.js | ||