mediawiki-skins-Vector/resources/skins.vector.styles/layouts/toc/pinned.less
Jan Drewniak da92ecf7cc [Refactor] Prepare existing styles for zebra module
This refactor seeks to make it easier to separate
feature flagged styles by wrapping the imports in
a top-level feature-flag selector, e.g:

    .vector-feature-zebra-design-disabled {
        @import './layouts/preZebra.less';
    }

This change does the following:
- Moves all file @imports to skin.less
- Removes unnecessary @import from MainMenu.less
- Moves .mixin-page-container() to mixins.less
- Moves @min-width-supported variable to variables.less
- Scopes existing Zebra styles at the skin.less file @import level
- Removes selectors ending with ampersands

The last changes makes it easer to reason about changes
specifically when wrapping entire file imports in a selector
since the ampersand ends up inheriting its value
from the skin.less file.

No visual differences are expected with this change.

Bug: T332600
Change-Id: Ife05e28ff38f9c5077e2d9eac653df656566e443
2023-04-19 18:53:11 +00:00

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@import '../../../common/variables.less';
@import '../../../common/mixins.less';
.mw-table-of-contents-container {
// Needed for Grid-based layout
align-self: start;
height: 100%;
}
@media ( min-width: @min-width-desktop ) {
.vector-feature-toc-pinned-enabled #mw-panel-toc {
// Support: Chrome
// Work around sticky-positioned layers disabling subpixel text rendering (T327460).
// NOTE: This property has an effect similar to 'overflow: hidden', and will prevent elements
// inside of the panel from being rendered outside of its bounding box, even when they would
// be positioned there using absolute positioning, negative margin, transforms, etc.
// That's why the negative margins have to be applied here, instead of on #vector-toc.
contain: paint;
// Align the left edge of the TOC text with the page container
margin-left: -@spacing-subsection-toggle;
}
#vector-toc-pinned-container {
// stylelint-disable-next-line plugin/no-unsupported-browser-features
position: sticky;
top: 0;
}
.vector-feature-toc-pinned-enabled #vector-toc-pinned-container {
// Default spacing separating the sidebar TOC from the main menu.
margin-top: 1.5em;
}
.vector-feature-main-menu-pinned-disabled.vector-feature-toc-pinned-enabled #vector-toc-pinned-container {
// Align TOC with bottom of title when main menu is not pinned but the TOC is
margin-top: @margin-top-pinned-toc;
}
// T302076: Add fade scrollable indicator when TOC is in sidebar
// Avoid showing indicator when the TOC is floating, or collapsed in the page title/sticky header
#vector-toc-pinned-container .vector-toc {
max-height: ~'calc( 100vh - @{max-height-bottom-spacing-scroll-indicator} )';
padding-top: @padding-top-pinned-element;
padding-left: @spacing-subsection-toggle;
padding-right: @padding-horizontal-dropdown-menu-item;
.mixin-vector-scroll-indicator();
}
}