riot-web/res/css/views/rooms/_IRCLayout.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.
*/

$icon-width: 14px;
$timestamp-width: 45px;
$right-padding: 5px;
$irc-line-height: $font-18px;

.mx_IRCLayout {
    --name-width: 70px;

    line-height: $irc-line-height !important;

    .mx_EventTile {
        // timestamps are links which shouldn't be underlined
        > a {
            text-decoration: none;
            min-width: 45px;
        }

        display: flex;
        flex-direction: row;
        align-items: flex-start;
        padding-top: 0;

        > * {
            margin-right: $right-padding;
        }

        .mx_ThreadInfo {
            margin-right: 0;
            margin-left: 0;
        }

        > .mx_EventTile_msgOption {
            order: 5;
            flex-shrink: 0;

            .mx_EventTile_readAvatars {
                top: 0.2rem; // ($irc-line-height - avatar height) / 2
            }
        }

        .mx_EventTile_line, .mx_EventTile_reply {
            padding: 0;
            display: flex;
            flex-direction: column;
            order: 3;
            flex-grow: 1;
            flex-shrink: 1;
            min-width: 0;
        }

        > .mx_EventTile_avatar {
            order: 1;
            position: relative;
            top: 0;
            left: 0;
            flex-shrink: 0;
            height: $irc-line-height;
            display: flex;
            align-items: center;

            // Need to use important to override the js provided height and width values.
            > .mx_BaseAvatar, > .mx_BaseAvatar > * {
                height: $font-14px !important;
                width: $font-14px !important;
                font-size: $font-10px !important;
                line-height: $font-15px !important;
            }
        }

        .mx_MessageTimestamp {
            font-size: $font-10px;
            width: $timestamp-width;
            text-align: right;
        }

        > .mx_EventTile_e2eIcon {
            position: absolute;
            right: unset;
            left: unset;
            top: 0;

            padding: 0;

            flex-shrink: 0;
            flex-grow: 0;

            height: $font-18px;

            background-position: center;
        }

        .mx_EventTile_line {
            .mx_EventTile_e2eIcon,
            .mx_TextualEvent,
            .mx_MTextBody {
                display: inline-block;
                // add a 1px padding top and bottom because our larger emoji font otherwise gets cropped by anti-zalgo
                padding: 1px 0;
            }
        }

        .mx_EventTile_reply {
            order: 4;
        }

        .mx_EditMessageComposer_buttons {
            position: relative;
        }

        .mx_ReactionsRow {
            padding-left: 0;
            padding-right: 0;
        }
    }

    .mx_EventTile_emote {
        > .mx_EventTile_avatar {
            margin-left: calc(var(--name-width) + $icon-width + $right-padding);
        }
    }

    blockquote {
        margin: 0;
    }

    .mx_EventListSummary {
        > .mx_EventTile_line {
            padding-left: calc(var(--name-width) + $icon-width + $timestamp-width + 3 * $right-padding); // 15 px of padding
        }

        .mx_EventListSummary_avatars {
            padding: 0;
            margin: 0 9px 0 0;
        }
    }

    .mx_EventTile.mx_EventTile_info {
        .mx_EventTile_avatar {
            left: calc(var(--name-width) + 10px + $icon-width);
            top: 0;
        }

        .mx_EventTile_line {
            left: calc(var(--name-width) + 10px + $icon-width);
        }

        .mx_TextualEvent {
            line-height: $irc-line-height;
        }
    }

    // Suppress highlight thing from the normal Layout.
    .mx_EventTile:hover.mx_EventTile_verified .mx_EventTile_line,
    .mx_EventTile:hover.mx_EventTile_unverified .mx_EventTile_line,
    .mx_EventTile:hover.mx_EventTile_unknown .mx_EventTile_line {
        padding-left: 0;
        border-left: 0;
    }

    .mx_SenderProfile {
        width: var(--name-width);
        display: flex;
        order: 2;
        flex-shrink: 0;
        justify-content: flex-start;
        align-items: center;

        > .mx_SenderProfile_displayName {
            width: 100%;
            text-align: end;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        > .mx_SenderProfile_mxid {
            visibility: collapse;
        }
    }

    .mx_SenderProfile:hover {
        overflow: visible;
        z-index: 10;

        > .mx_SenderProfile_displayName {
            overflow: visible;
        }

        > .mx_SenderProfile_mxid {
            visibility: visible;
        }
    }

    .mx_ReplyChain {
        margin: 0;
        .mx_SenderProfile {
            order: unset;
            max-width: unset;
            width: unset;
            background: transparent;
        }

        .mx_EventTile_emote {
            > .mx_EventTile_avatar {
                margin-left: initial;
            }
        }

        .mx_MessageTimestamp {
            width: initial;
        }

        /**
         * adding the icon back in the document flow
         * if it's not present, there's no unwanted wasted space
         */
        .mx_EventTile_e2eIcon {
            position: relative;
            order: -1;
        }
    }

    .mx_ProfileResizer {
        position: absolute;
        height: 100%;
        width: 15px;
        left: calc(80px + var(--name-width));
        cursor: col-resize;
        z-index: 100;
    }

    // Need to use important to override the js provided height and width values.
    .mx_Flair > img {
        height: $font-14px !important;
        width: $font-14px !important;
    }
}