riot-web/res/css/views/rooms/_RoomTile2.scss

/*
Copyright 2020 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

// TODO: Rename to mx_RoomTile during replacement of old component

// Note: the room tile expects to be in a flexbox column container
.mx_RoomTile2 {
    margin-bottom: 4px;
    padding: 4px;

    // The tile is also a flexbox row itself
    display: flex;
    flex-wrap: wrap;

    &.mx_RoomTile2_selected, &:hover, &.mx_RoomTile2_hasMenuOpen {
        background-color: $roomtile2-selected-bg-color;
        border-radius: 32px;
    }

    .mx_RoomTile2_avatarContainer {
        margin-right: 8px;
        position: relative;

        .mx_RoomTileIcon {
            position: absolute;
            bottom: 0;
            right: 0;
        }
    }

    .mx_RoomTile2_nameContainer {
        flex-grow: 1;
        max-width: calc(100% - 58px); // 32px avatar, 18px badge area, 8px margin on avatar

        // Create a new column layout flexbox for the name parts
        display: flex;
        flex-direction: column;
        justify-content: center;

        .mx_RoomTile2_name,
        .mx_RoomTile2_messagePreview {
            margin: 0 2px;
            width: 100%;

            // Ellipsize any text overflow
            text-overflow: ellipsis;
            overflow: hidden;
            white-space: nowrap;
        }

        .mx_RoomTile2_name {
            font-size: $font-14px;
            line-height: $font-18px;
        }

        .mx_RoomTile2_name.mx_RoomTile2_nameHasUnreadEvents {
            font-weight: 700;
        }

        .mx_RoomTile2_messagePreview {
            font-size: $font-13px;
            line-height: $font-18px;
            color: $roomtile2-preview-color;
        }

        .mx_RoomTile2_nameWithPreview {
            margin-top: -4px; // shift the name up a bit more
        }
    }

    .mx_RoomTile2_badgeContainer {
        width: 18px;
        height: 32px;

        // Create another flexbox row because it's super easy to position the badge at
        // the end this way.
        display: flex;
        align-items: center;
        justify-content: center;
    }

    // The menu button is hidden by default
    // TODO: [Notifications] Use mx_RoomTile2_notificationsButton, similar to the following approach:
    // https://github.com/matrix-org/matrix-react-sdk/blob/2180a56074f3698fc0241c309a72ba6cad802d1c/res/css/views/rooms/_RoomSublist2.scss#L48-L76
    // You'll need to do the same down below on the &:hover selector for the tile.
    // ... also remove this 4 line TODO comment.
    .mx_RoomTile2_menuButton,
    .mx_RoomTile2_notificationsButton {
        width: 0;
        height: 0;
        visibility: hidden;
        position: relative;

        &::before {
            content: '';
            width: 16px;
            height: 16px;
            position: absolute;
            mask-position: center;
            mask-size: contain;
            mask-repeat: no-repeat;
            background: $primary-fg-color;
        }
    }

    .mx_RoomTile2_menuButton::before {
        top: 8px;
        left: -1px; // this is off-center to align it with the badges
        mask-image: url('$(res)/img/feather-customised/more-horizontal.svg');
    }

    &:not(.mx_RoomTile2_minimized) {
        &:hover, &.mx_RoomTile2_hasMenuOpen {
            // Hide the badge container on hover because it'll be a menu button
            .mx_RoomTile2_badgeContainer {
                width: 0;
                height: 0;
                visibility: hidden;
            }

            .mx_RoomTile2_menuButton {
                width: 18px;
                height: 32px;
                visibility: visible;
            }
        }
    }

    &.mx_RoomTile2_minimized {
        flex-direction: column;
        align-items: center;
        position: relative;

        .mx_RoomTile2_avatarContainer {
            margin-right: 0;
        }

        .mx_RoomTile2_badgeContainer {
            position: absolute;
            top: 0;
            right: 0;
            height: 18px;
        }
    }
}

.mx_RoomTile2_contextMenu {
    .mx_RoomTile2_contextMenu_redRow {
        .mx_AccessibleButton {
            color: $warning-color !important; // !important to override styles from context menu
        }

        .mx_IconizedContextMenu_icon::before {
            background-color: $warning-color;
        }
    }

    .mx_IconizedContextMenu_icon {
        position: relative;
        width: 16px;
        height: 16px;

        &::before {
            content: '';
            width: 16px;
            height: 16px;
            position: absolute;
            mask-position: center;
            mask-size: contain;
            mask-repeat: no-repeat;
            background: $primary-fg-color;
        }
    }

    .mx_RoomTile2_iconStar::before {
        mask-image: url('$(res)/img/feather-customised/star.svg');
    }

    .mx_RoomTile2_iconArrowDown::before {
        mask-image: url('$(res)/img/feather-customised/arrow-down.svg');
    }

    .mx_RoomTile2_iconUser::before {
        mask-image: url('$(res)/img/feather-customised/user.svg');
    }

    .mx_RoomTile2_iconSettings::before {
        mask-image: url('$(res)/img/feather-customised/settings.svg');
    }

    .mx_RoomTile2_iconSignOut::before {
        mask-image: url('$(res)/img/feather-customised/sign-out.svg');
    }
}