mediawiki-skins-Vector/resources/skins.vector.styles/components/LanguageDropdown.less
Jon Robson a43d522331 Fix language button fallback
* Don't hide language button
This code can be removed now  T287206 is resolved.
Also simplify legacy logic - as the language menu
is always a portlet there.

Additional changes:
* Create LanguageButtonDropdown component to distinguish
this code from the LanguageButton in the sticky header.
* Fixes a style in LanguageButtonDropdown.less which wasn't
accounting for multiple vector-menu-content classes

Bug: T320927
Bug: T325017
Change-Id: Ic331684c384c5d57b60b098f23485e44fb75fb8f
2023-01-06 00:45:31 +00:00

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// The use of mixins.buttons requires @font-size-base to be defined for this to work in Storybook
@import '../../common/variables.less';
@import '../../common/mixins.less';
@import 'mediawiki.mixins.less';
// Note vector-feature-language-in-header-enabled class is not used here as that class
// only applies to main page.
// This must be limited to vector-page-titlebar as the mw-portlet-lang class is shared with
// the language portlet that can display in the sidebar.
.vector-page-titlebar .mw-portlet-lang {
// FIXME [review whether margin-top is needed] center vertically in heading.
margin-top: 2px;
box-sizing: border-box;
height: @height-button-lang;
flex-shrink: 0;
// The language button is a BUTTON ICON not a standalone ICON so different rules apply
// It might make sense to have a mw-ui-icon-flush-right-button class in core to replace this.
&.mw-ui-icon-flush-right {
// This number should be synced with the value in:
// https://github.com/wikimedia/mediawiki/blob/master/resources/src/mediawiki.less/mediawiki.ui/mixins.buttons.less#L33
margin-right: -12px;
}
// If there are no languages and JavaScript is not enabled there is no fallback so we hide
// the button altogether.
.mw-portlet-lang-heading-0 {
.client-nojs & {
display: none;
}
}
.vector-menu-heading {
// Prevent select of span text "X languages"
user-select: none;
// Remove opacity on language button (it applies to more menu because of label color).
opacity: 1;
.vector-menu-heading-label {
// Special treatment for language button, based on Vector font-size
font-size: @font-size-base;
}
// T291286: Temporarily use progressive ULS style
&.mw-ui-progressive.mw-ui-quiet {
.mw-ui-icon:before {
// Ensure inverted language icon is white
opacity: 1;
}
&:after {
// Invert arrow color
background-image: url( ../common/images/arrow-down-progressive.svg );
opacity: 1;
}
}
}
input:active + .vector-menu-heading {
&.mw-ui-progressive.mw-ui-quiet {
.mw-ui-icon {
// stylelint-disable-next-line plugin/no-unsupported-browser-features
filter: brightness( 0 ) invert( 1 );
}
&:after {
background-image: url( ../common/images/arrow-down-invert.svg );
}
}
}
// The `vector-menu-content` class is present twice in current implementation of language switcher
// (see FIXME in Dropdown/Open.mustache) so it is important we target the direct child.
> .vector-menu-content {
top: auto;
left: -@border-width-base;
right: -@border-width-base;
// align borders of open menu align with button
box-sizing: border-box;
max-height: 65vh;
overflow: auto;
// Adds to the show/hide technique in Dropdown.less with
// display to prevent rendering and long scrolling on Main page
display: none;
li a {
font-size: inherit;
}
}
.vector-menu-checkbox:checked ~ .vector-menu-content {
display: block;
}
.after-portlet {
// ensure there is a visual separation between the language links and additional links.
margin-top: 10px;
}
}
// Hides language button with CSS, ensures language button is in DOM for temporary JS hack for interwiki links
// Temporary solution to T287206, can be removed when ULS dialog includes interwiki links
#p-lang-btn.mw-portlet-empty {
display: none;
}
.mw-interlanguage-selector {
display: flex;
&:after {
.mixin-vector-menu-heading-arrow();
}
}