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typeahead: Patch third/typeahead.js for IME event handling. 

We do not want to import any of our modules into this file, so
it has an independent implementation of the fix for #22062. Also,
using -13 as a keyCode helps avoid having to make changes to all
the comparisons with e.keyCode that the module relies on.
This commit is contained in:
Rohitt Vashishtha 2022-11-02 22:55:52 +05:30 committed by Tim Abbott
parent e5c26eeb86
commit 103b8f6de3
1 changed files with 27 additions and 8 deletions
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29
static/third/bootstrap-typeahead/typeahead.js
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@ -71,15 +71,30 @@
* Our custom changes include all mentions of `helpOnEmptyStrings` and `hideOnEmpty`.
*
* 6. Prevent typeahead going off top of screen:
*
* If typeahead would go off the top of the screen, we set its top to 0 instead.
* This patch should be replaced with something more flexible.
*
* 7. Ignore IME Enter events:
*
* See #22062 for details. Enter keypress that are part of IME composing are
* treated as a separate/invalid -13 key, to prevent them from being incorrectly
* processed as a bonus Enter press.
*
* ============================================================ */
!function($){
"use strict"; // jshint ;_;
function get_pseudo_keycode(e) {
const isComposing = (event.originalEvent && event.originalEvent.isComposing) || false;
/* We treat IME compose enter keypresses as a separate -13 key. */
if (e.keyCode === 13 && isComposing) {
return -13;
}
return e.keyCode;
}
/* TYPEAHEAD PUBLIC CLASS DEFINITION
* ================================= */
@ -354,8 +369,9 @@
, move: function (e) {
if (!this.shown) return
const pseudo_keycode = get_pseudo_keycode(e);
switch(e.keyCode) {
switch(pseudo_keycode) {
case 9: // tab
case 13: // enter
case 27: // escape
@ -373,7 +389,7 @@
break
}
if ((this.options.stopAdvance || (e.keyCode != 9 && e.keyCode != 13))
if ((this.options.stopAdvance || (pseudo_keycode != 9 && pseudo_keycode != 13))
&& $.inArray(e.keyCode, this.options.advanceKeyCodes)) {
e.stopPropagation()
}
@ -389,12 +405,13 @@
}
, keydown: function (e) {
const pseudo_keycode = get_pseudo_keycode(e);
if (this.trigger_selection(e)) {
if (!this.shown) return;
e.preventDefault();
this.select(e);
}
this.suppressKeyPressRepeat = !~$.inArray(e.keyCode, [40,38,9,13,27])
this.suppressKeyPressRepeat = !~$.inArray(pseudo_keycode, [40,38,9,13,27]);
this.move(e)
}
@ -404,7 +421,9 @@
}
, keyup: function (e) {
switch(e.keyCode) {
const pseudo_keycode = get_pseudo_keycode(e);
switch(pseudo_keycode) {
case 40: // down arrow
case 38: // up arrow
break
@ -431,7 +450,7 @@
this.lookup(hideOnEmpty)
}
if ((this.options.stopAdvance || (e.keyCode != 9 && e.keyCode != 13))
if ((this.options.stopAdvance || (pseudo_keycode != 9 && pseudo_keycode != 13))
&& $.inArray(e.keyCode, this.options.advanceKeyCodes)) {
e.stopPropagation()
}