element-web/res/css/views/rooms/_RoomSublist.pcss

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/*
Copyright 2024 New Vector Ltd.
Copyright 2020 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
.mx_RoomSublist {
margin-left: 8px;
margin-bottom: 4px;
&.mx_RoomSublist_hidden {
display: none;
}
&:not(.mx_RoomSublist_minimized) {
.mx_RoomSublist_headerContainer {
height: auto;
}
}
.mx_RoomSublist_headerContainer {
/* Create a flexbox to make alignment easy */
display: flex;
align-items: center;
/* *************************** */
/* Sticky Headers Start */
/* Ideally we'd be able to use `position: sticky; top: 0; bottom: 0;` on the */
/* headerContainer, however due to our layout concerns we actually have to */
/* calculate it manually so we can sticky things in the right places. We also */
/* target the headerText instead of the container to reduce jumps when scrolling, */
/* and to help hide the badges/other buttons that could appear on hover. This */
/* all works by ensuring the header text has a fixed height when sticky so the */
/* fixed height of the container can maintain the scroll position. */
/* The combined height must be set in the LeftPanel component for sticky headers */
/* to work correctly. */
padding-bottom: 8px;
height: 24px;
color: $secondary-content;
.mx_RoomSublist_stickableContainer {
width: 100%;
}
.mx_RoomSublist_stickable {
flex: 1;
max-width: 100%;
/* Create a flexbox to make ordering easy */
display: flex;
align-items: center;
/* We use a generic sticky class for 2 reasons: to reduce style duplication and */
/* to identify when a header is sticky. If we didn't have a consistent sticky class, */
/* we'd have to do the "is sticky" checks again on click, as clicking the header */
/* when sticky scrolls instead of collapses the list. */
&.mx_RoomSublist_headerContainer_sticky {
position: fixed;
height: 32px; /* to match the header container */
/* width set by JS because of a compat issue between Firefox and Chrome */
width: calc(100% - 15px);
}
/* We don't have a top style because the top is dependent on the room list header's */
/* height, and is therefore calculated in JS. */
/* The class, mx_RoomSublist_headerContainer_stickyTop, is applied though. */
}
/* Sticky Headers End */
/* *************************** */
.mx_RoomSublist_badgeContainer {
/* Create another flexbox row because it's super easy to position the badge this way. */
display: flex;
align-items: center;
justify-content: center;
/* Apply the width and margin to the badge so the container doesn't occupy dead space */
.mx_NotificationBadge {
/* Do not set a width so the badges get properly sized */
margin-left: 8px; /* same as menu+aux buttons */
}
}
&:not(.mx_RoomSublist_headerContainer_withAux) {
.mx_NotificationBadge {
margin-right: 4px; /* just to push it over a bit, aligning it with the other elements */
}
}
.mx_RoomSublist_auxButton,
.mx_RoomSublist_menuButton {
margin-left: 8px; /* should be the same as the notification badge */
position: relative;
width: 24px;
height: 24px;
border-radius: 8px;
&::before {
content: "";
width: 16px;
height: 16px;
position: absolute;
top: 4px;
left: 4px;
mask-position: center;
mask-size: contain;
mask-repeat: no-repeat;
background: var(--cpd-color-icon-secondary);
}
}
.mx_RoomSublist_auxButton:hover,
.mx_RoomSublist_menuButton:hover {
background: $panel-actions;
}
/* Hide the menu button by default */
.mx_RoomSublist_menuButton {
visibility: hidden;
width: 0;
margin: 0;
}
.mx_RoomSublist_auxButton::before {
mask-image: url("$(res)/img/element-icons/roomlist/plus.svg");
}
.mx_RoomSublist_menuButton::before {
mask-image: url("$(res)/img/element-icons/context-menu.svg");
}
.mx_RoomSublist_headerText {
flex: 1;
max-width: calc(100% - 16px); /* 16px is the badge width */
font: var(--cpd-font-body-sm-semibold);
/* Ellipsize any text overflow */
text-overflow: ellipsis;
overflow: hidden;
white-space: nowrap;
.mx_RoomSublist_collapseBtn {
display: inline-block;
position: relative;
width: 14px;
height: 14px;
margin-right: 6px;
&::before {
content: "";
width: 18px;
height: 18px;
position: absolute;
mask-position: center;
mask-size: contain;
mask-repeat: no-repeat;
background-color: var(--cpd-color-icon-secondary);
mask-image: url("$(res)/img/feather-customised/chevron-down.svg");
}
&.mx_RoomSublist_collapseBtn_collapsed::before {
transform: rotate(-90deg);
}
}
}
}
/* In the general case, we reserve space for each sublist header to prevent */
/* scroll jumps when they become sticky. However, that leaves a gap when */
/* scrolled to the top above the first sublist (whose header can only ever */
/* stick to top), so we make sure to exclude the first visible sublist. */
&:not(.mx_RoomSublist_hidden) ~ .mx_RoomSublist .mx_RoomSublist_stickableContainer {
height: 24px;
}
.mx_RoomSublist_resizeBox {
position: relative;
/* Create another flexbox column for the tiles */
display: flex;
flex-direction: column;
overflow: hidden;
.mx_RoomSublist_tiles {
flex: 1 0 0;
overflow: hidden;
overflow: clip;
/* need this to be flex otherwise the overflow hidden from above */
/* sometimes vertically centers the clipped list ... no idea why it would do this */
/* as the box model should be top aligned. Happens in both FF and Chromium */
display: flex;
flex-direction: column;
align-self: stretch;
/* without this Firefox will prefer pushing the resizer & show more/less button into the overflow */
min-height: 0;
mask-image: linear-gradient(0deg, transparent, black 4px);
}
&.mx_RoomSublist_resizeBox_forceExpanded .mx_RoomSublist_tiles {
/* in this state the div can collapse its height entirely in Chromium, */
/* so prevent that by allowing overflow */
overflow: visible;
/* clear the min-height to make it not collapse entirely in a state with no active resizer */
min-height: unset;
}
.mx_RoomSublist_resizerHandles_showNButton {
flex: 0 0 32px;
}
.mx_RoomSublist_resizerHandles {
flex: 0 0 4px;
display: flex;
justify-content: center;
width: 100%;
}
/* Class name comes from the ResizableBox component */
/* The hover state needs to use the whole sublist, not just the resizable box, */
/* so that selector is below and one level higher. */
.mx_RoomSublist_resizerHandle {
cursor: ns-resize;
border-radius: 3px;
/* Override styles from library */
max-width: 64px;
height: 4px !important; /* Update RESIZE_HANDLE_HEIGHT if this changes */
/* This is positioned directly below the 'show more' button. */
position: relative !important;
bottom: 0 !important; /* override from library */
}
&:hover,
&.mx_RoomSublist_hasMenuOpen {
.mx_RoomSublist_resizerHandle {
opacity: 0.8;
background-color: $primary-content;
}
}
}
.mx_RoomSublist_showNButton {
cursor: pointer;
font-size: $font-13px;
line-height: $font-18px;
color: $secondary-content;
/* Update the render() function for RoomSublist if these change */
/* Update the ListLayout class for minVisibleTiles if these change. */
height: 24px;
padding-bottom: 4px;
/* We create a flexbox to cheat at alignment */
display: flex;
align-items: center;
.mx_RoomSublist_showNButtonChevron {
position: relative;
width: 18px;
height: 18px;
margin-left: 12px;
margin-right: 16px;
mask-position: center;
mask-size: contain;
mask-repeat: no-repeat;
background: $tertiary-content;
left: -1px; /* adjust for image position */
}
.mx_RoomSublist_showMoreButtonChevron,
.mx_RoomSublist_showLessButtonChevron {
mask-image: url("$(res)/img/feather-customised/chevron-down.svg");
}
.mx_RoomSublist_showLessButtonChevron {
transform: rotate(180deg);
}
}
&.mx_RoomSublist_hasMenuOpen,
&:not(.mx_RoomSublist_minimized) > .mx_RoomSublist_headerContainer:focus-within,
&:not(.mx_RoomSublist_minimized) > .mx_RoomSublist_headerContainer:hover {
.mx_RoomSublist_menuButton {
visibility: visible;
width: 24px;
margin-left: 8px;
}
}
&.mx_RoomSublist_minimized {
.mx_RoomSublist_headerContainer {
height: auto;
flex-direction: column;
position: relative;
.mx_RoomSublist_badgeContainer {
order: 0;
align-self: flex-end;
margin-right: 0;
}
.mx_RoomSublist_stickable {
order: 1;
max-width: 100%;
}
.mx_RoomSublist_auxButton {
order: 2;
visibility: visible;
width: 32px !important; /* !important to override hover styles */
height: 32px !important; /* !important to override hover styles */
margin-left: 0 !important; /* !important to override hover styles */
background-color: $panel-actions;
margin-top: 8px;
&::before {
top: 8px;
left: 8px;
}
}
}
.mx_RoomSublist_resizeBox {
align-items: center;
}
.mx_RoomSublist_showNButton {
flex-direction: column;
.mx_RoomSublist_showNButtonChevron {
margin-right: 12px; /* to center */
}
}
.mx_RoomSublist_menuButton {
height: 16px;
}
&.mx_RoomSublist_hasMenuOpen,
& > .mx_RoomSublist_headerContainer:hover {
.mx_RoomSublist_menuButton {
visibility: visible;
position: absolute;
bottom: 48px; /* align to middle of name, 40px for aux button (with padding) and 8px for alignment */
right: 0;
width: 16px;
height: 16px;
border-radius: 0;
z-index: 1; /* occlude the list name */
/* This is the same color as the left panel background because it needs */
/* to occlude the sublist title */
background-color: $roomlist-bg-color;
&::before {
top: 0;
left: 0;
}
}
&.mx_RoomSublist_headerContainer:not(.mx_RoomSublist_headerContainer_withAux) {
.mx_RoomSublist_menuButton {
bottom: 8px; /* align to the middle of name, 40px less than the `bottom` above. */
}
}
}
}
}
.mx_RoomSublist_contextMenu {
padding: 20px 16px;
width: 250px;
hr {
margin-top: 16px;
margin-bottom: 16px;
margin-right: 16px; /* additional 16px */
border: 1px solid $primary-content;
opacity: 0.1;
}
.mx_RoomSublist_contextMenu_title {
font-size: $font-15px;
line-height: $font-20px;
font-weight: var(--cpd-font-weight-semibold);
margin-bottom: 4px;
}
.mx_StyledRadioButton,
.mx_Checkbox {
margin-top: 8px;
}
}
.mx_RoomSublist_skeletonUI {
position: relative;
margin-left: 4px;
height: 240px;
&::before {
background: $roomsublist-skeleton-ui-bg;
width: 100%;
height: 100%;
content: "";
position: absolute;
mask-repeat: repeat-y;
mask-size: auto 48px;
mask-image: url("$(res)/img/element-icons/roomlist/skeleton-ui.svg");
}
}
.mx_RoomSublist_minimized .mx_RoomSublist_skeletonUI {
width: 32px; /* cut off the horizontal lines in the svg */
margin-left: 10px; /* align with sublist + buttons */
}