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Restore Accessibility for Dropdown (#16576)

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* Restore #10096/#8638 and re-fix #15172

This PR restores the vendored and patched dropdow from #8638. It
however, abandons the calls to `click()` using instead the default
dropdown click calls instead. This prevents the issue of the dropdown
grabbing focus permanently however, this may have negative effects on
the effect of focus on the dropdowns.

Of note, the behaviour of the template selector dropdown on the repo
creation page is slightly odd - I don't believe that this odd behaviour
is caused by this PR but rather by the feed source for this. I suspect
that the dropdown should be adding a delete button to its selection.

Fix #15172
References: #7057

Signed-off-by: Andrew Thornton <art27@cantab.net>

* leverage fomantic-build instead

Signed-off-by: Andrew Thornton <art27@cantab.net>

* as per jookia

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2021-08-05 23:16:24 +01:00 committed by GitHub
parent fd39e6dc6a
commit 6e6f23b315
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 4450 additions and 10 deletions
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1
.eslintrc
View file

@ -2,6 +2,7 @@ root: true
reportUnusedDisableDirectives: true
ignorePatterns:
- /web_src/js/vendor
- /templates/base/head.tmpl
- /templates/repo/activity.tmpl
- /templates/repo/view_file.tmpl

1
Makefile
View file

@ -699,6 +699,7 @@ fomantic:
cd $(FOMANTIC_WORK_DIR) && npm install --no-save
cp -f $(FOMANTIC_WORK_DIR)/theme.config.less $(FOMANTIC_WORK_DIR)/node_modules/fomantic-ui/src/theme.config
cp -rf $(FOMANTIC_WORK_DIR)/_site $(FOMANTIC_WORK_DIR)/node_modules/fomantic-ui/src/
cp -f web_src/js/vendor/dropdown.js $(FOMANTIC_WORK_DIR)/node_modules/fomantic-ui/src/definitions/modules
cd $(FOMANTIC_WORK_DIR) && npx gulp -f node_modules/fomantic-ui/gulpfile.js build
.PHONY: webpack

4
web_src/fomantic/build/semantic.css
View file

@ -30873,7 +30873,7 @@ ol.ui.suffixed.list li:before,
List
---------------*/
/* Menu divider shouldn't apply */
/* Menu divider shouldnt apply */
.ui.menu .list .item:before {
background: none !important;
@ -31802,7 +31802,7 @@ Floated Menu / Item
opacity: 1;
}
/* Icon Glyph */
/* Icon Gylph */
.ui.icon.menu i.icon:before {
opacity: 1;

116
web_src/fomantic/build/semantic.js
View file

@ -142,7 +142,7 @@ $.api = $.fn.api = function(parameters) {
response = JSON.parse(response);
}
catch(e) {
// isn't json string
// isnt json string
}
}
return response;
@ -2220,7 +2220,7 @@ $.fn.dimmer = function(parameters) {
event: {
click: function(event) {
module.verbose('Determining if event occurred on dimmer', event);
module.verbose('Determining if event occured on dimmer', event);
if( $dimmer.find(event.target).length === 0 || $(event.target).is(selector.content) ) {
module.hide();
event.stopImmediatePropagation();
@ -2827,6 +2827,13 @@ $.fn.dimmer.settings = {
*
*/
/*
* Copyright 2019 The Gitea Authors
* Released under the MIT license
* http://opensource.org/licenses/MIT
* This version has been modified by Gitea to improve accessibility.
*/
;(function ($, window, document, undefined) {
'use strict';
@ -2860,6 +2867,7 @@ $.fn.dropdown = function(parameters) {
query = arguments[0],
methodInvoked = (typeof query == 'string'),
queryArguments = [].slice.call(arguments, 1),
lastAriaID = 1,
returnedValue
;
@ -2952,6 +2960,8 @@ $.fn.dropdown = function(parameters) {
module.observeChanges();
module.instantiate();
module.aria.setup();
}
},
@ -3152,6 +3162,86 @@ $.fn.dropdown = function(parameters) {
}
},
aria: {
setup: function() {
var role = module.aria.guessRole();
if( role !== 'menu' ) {
return;
}
$module.attr('aria-busy', 'true');
$module.attr('role', 'menu');
$module.attr('aria-haspopup', 'menu');
$module.attr('aria-expanded', 'false');
$menu.find('.divider').attr('role', 'separator');
$item.attr('role', 'menuitem');
$item.each(function (index, item) {
if( !item.id ) {
item.id = module.aria.nextID('menuitem');
}
});
$text = $module
.find('> .text')
.eq(0)
;
if( $module.data('content') ) {
$text.attr('aria-hidden');
$module.attr('aria-label', $module.data('content'));
}
else {
$text.attr('id', module.aria.nextID('menutext'));
$module.attr('aria-labelledby', $text.attr('id'));
}
$module.attr('aria-busy', 'false');
},
nextID: function(prefix) {
var nextID;
do {
nextID = prefix + '_' + lastAriaID++;
} while( document.getElementById(nextID) );
return nextID;
},
setExpanded: function(expanded) {
if( $module.attr('aria-haspopup') ) {
$module.attr('aria-expanded', expanded);
}
},
refreshDescendant: function() {
if( $module.attr('aria-haspopup') !== 'menu' ) {
return;
}
var
$currentlySelected = $item.not(selector.unselectable).filter('.' + className.selected).eq(0),
$activeItem = $menu.children('.' + className.active).eq(0),
$selectedItem = ($currentlySelected.length > 0)
? $currentlySelected
: $activeItem
;
if( $selectedItem ) {
$module.attr('aria-activedescendant', $selectedItem.attr('id'));
}
else {
module.aria.removeDescendant();
}
},
removeDescendant: function() {
if( $module.attr('aria-haspopup') == 'menu' ) {
$module.removeAttr('aria-activedescendant');
}
},
guessRole: function() {
var
isIcon = $module.hasClass('icon'),
hasSearch = module.has.search(),
hasInput = ($input.length > 0),
isMultiple = module.is.multiple()
;
if ( !isIcon && !hasSearch && !hasInput && !isMultiple ) {
return 'menu';
}
return 'unknown';
}
},
setup: {
api: function() {
var
@ -3198,6 +3288,7 @@ $.fn.dropdown = function(parameters) {
if(settings.allowTab) {
module.set.tabbable();
}
$item.attr('tabindex', '-1');
},
select: function() {
var
@ -3344,6 +3435,8 @@ $.fn.dropdown = function(parameters) {
return true;
}
if(settings.onShow.call(element) !== false) {
module.aria.setExpanded(true);
module.aria.refreshDescendant();
module.animate.show(function() {
if( module.can.click() ) {
module.bind.intent();
@ -3366,9 +3459,11 @@ $.fn.dropdown = function(parameters) {
if( module.is.active() && !module.is.animatingOutward() ) {
module.debug('Hiding dropdown');
if(settings.onHide.call(element) !== false) {
module.aria.setExpanded(false);
module.aria.removeDescendant();
module.animate.hide(function() {
module.remove.visible();
// hiding search focus
// hidding search focus
if ( module.is.focusedOnSearch() && preventBlur !== true ) {
$search.blur();
}
@ -4319,7 +4414,7 @@ $.fn.dropdown = function(parameters) {
// allow selection with menu closed
if(isAdditionWithoutMenu) {
module.verbose('Selecting item from keyboard shortcut', $selectedItem);
module.event.item.click.call($selectedItem, event);
$selectedItem[0].click();
if(module.is.searchSelection()) {
module.remove.searchTerm();
}
@ -4339,7 +4434,7 @@ $.fn.dropdown = function(parameters) {
}
else if(selectedIsSelectable) {
module.verbose('Selecting item from keyboard shortcut', $selectedItem);
module.event.item.click.call($selectedItem, event);
$selectedItem[0].click();
if(module.is.searchSelection()) {
module.remove.searchTerm();
if(module.is.multiple()) {
@ -4367,6 +4462,7 @@ $.fn.dropdown = function(parameters) {
.closest(selector.item)
.addClass(className.selected)
;
module.aria.refreshDescendant();
event.preventDefault();
}
}
@ -4383,6 +4479,7 @@ $.fn.dropdown = function(parameters) {
.find(selector.item).eq(0)
.addClass(className.selected)
;
module.aria.refreshDescendant();
event.preventDefault();
}
}
@ -4407,6 +4504,7 @@ $.fn.dropdown = function(parameters) {
$nextItem
.addClass(className.selected)
;
module.aria.refreshDescendant();
module.set.scrollPosition($nextItem);
if(settings.selectOnKeydown && module.is.single()) {
module.set.selectedItem($nextItem);
@ -4434,6 +4532,7 @@ $.fn.dropdown = function(parameters) {
$nextItem
.addClass(className.selected)
;
module.aria.refreshDescendant();
module.set.scrollPosition($nextItem);
if(settings.selectOnKeydown && module.is.single()) {
module.set.selectedItem($nextItem);
@ -5403,6 +5502,7 @@ $.fn.dropdown = function(parameters) {
module.set.scrollPosition($nextValue);
$selectedItem.removeClass(className.selected);
$nextValue.addClass(className.selected);
module.aria.refreshDescendant();
if(settings.selectOnKeydown && module.is.single()) {
module.set.selectedItem($nextValue);
}
@ -11937,7 +12037,7 @@ $.fn.progress = function(parameters) {
*
* @param min A minimum value within multiple values
* @param total A total amount of multiple values
* @returns {number} A precision. Could be 1, 10, 100, ... 1e+10.
* @returns {number} A precison. Could be 1, 10, 100, ... 1e+10.
*/
derivePrecision: function(min, total) {
var precisionPower = 0
@ -12837,7 +12937,7 @@ $.fn.progress.settings = {
nonNumeric : 'Progress value is non numeric',
tooHigh : 'Value specified is above 100%',
tooLow : 'Value specified is below 0%',
sumExceedsTotal : 'Sum of multiple values exceed total',
sumExceedsTotal : 'Sum of multple values exceed total',
},
regExp: {
@ -18076,7 +18176,7 @@ $.fn.transition.settings = {
// possible errors
error: {
noAnimation : 'Element is no longer attached to DOM. Unable to animate. Use silent setting to suppress this warning in production.',
noAnimation : 'Element is no longer attached to DOM. Unable to animate. Use silent setting to surpress this warning in production.',
repeated : 'That animation is already occurring, cancelling repeated animation',
method : 'The method you called is not defined',
support : 'This browser does not support CSS animations'

4338
web_src/js/vendor/dropdown.js vendored Normal file
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