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

/*
Copyright 2024 New Vector Ltd.
Copyright 2021 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_RoomView_body[data-layout="bubble"] {
    .mx_RoomView_timeline,
    .mx_RoomView_statusArea,
    .mx_MessageComposer {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
    }
}

.mx_EventTile[data-layout="bubble"],
.mx_GenericEventListSummary[data-layout="bubble"] {
    --avatarSize: 32px;
    --gutterSize: 11px;
    --cornerRadius: 12px;
    --maxWidth: 70%;

    /* For both event tile and event list summary */
    --EventTile_bubble-margin-inline-start: 49px;
    --EventTile_bubble-margin-inline-end: 60px;

    margin-inline-start: var(--EventTile_bubble-margin-inline-start);
    margin-inline-end: var(--EventTile_bubble-margin-inline-end);
}

.mx_EventTile[data-layout="bubble"] {
    --EventTile_bubble_line-margin-inline-start: -9px;
    --EventTile_bubble_line-margin-inline-end: -12px;
    --EventTile_bubble_gap-inline: 5px;

    .mx_MessageTimestamp {
        width: unset; /* Cancel the default width */
        max-width: var(--MessageTimestamp-max-width);
    }

    .mx_ThreadSummary {
        clear: both;
        width: fit-content;
    }

    .mx_EventTile_content {
        margin-right: 0;
    }

    .mx_EventTile_avatar {
        line-height: 0;
        border: 4px solid $background;
        border-radius: 50%;
        position: absolute;
        top: 6px;
        z-index: 9;
        img {
            box-shadow: 0 0 0 3px $background;
            border-radius: 50%;
        }
    }

    &.mx_EventTile_highlight {
        .mx_EventTile_avatar {
            border-color: $event-highlight-bg-color;
        }
        &::before {
            background-color: $event-highlight-bg-color;
        }
    }

    &:hover {
        .mx_EventTile_avatar {
            border-color: $eventbubble-bg-hover;
        }
    }

    /* For replies */
    .mx_EventTile {
        padding-top: 0;
    }

    &::before {
        content: "";
        position: absolute;
        top: -1px;
        bottom: -1px;
        left: calc(-1 * var(--EventTile_bubble-margin-inline-start));
        right: calc(-1 * var(--EventTile_bubble-margin-inline-end));
        z-index: -1;
        border-radius: 4px;
    }

    &:hover,
    &.mx_EventTile_selected {
        &::before {
            background: $eventbubble-bg-hover;
        }

        .mx_EventTile_avatar {
            img {
                box-shadow: 0 0 0 3px $eventbubble-bg-hover;
            }
        }
    }

    .mx_DisambiguatedProfile,
    .mx_EventTile_line {
        --EventBubbleTile_line-max-width: 70%;

        width: fit-content;
        max-width: var(--EventBubbleTile_line-max-width); /* Align message bubble and displayName */
        line-height: $font-18px; /* fixed line height to prevent emoji from being taller than text */
    }

    /* other users profile on bubble layout */
    > .mx_DisambiguatedProfile {
        white-space: normal; /* display mxid */

        .mx_DisambiguatedProfile_displayName {
            white-space: nowrap; /* truncate long display names */
            margin-inline-end: 5px;

            /* For RTL displayName */
            unicode-bidi: embed;
            direction: ltr;
        }

        .mx_DisambiguatedProfile_mxid {
            margin-inline-start: 0; /* Align mxid with truncated displayName
                inside mx_EventTile[data-layout="bubble"] */
        }
    }

    /* inside mx_RoomView_MessageList, outside of mx_ReplyTile */
    /* (on the main panel and the chat panel with a maximized widget) */
    > .mx_DisambiguatedProfile,
    /* inside a thread, outside of mx_ReplyTile */
    .mx_EventTile_senderDetails > .mx_DisambiguatedProfile {
        position: relative;
        top: -2px;
        left: 2px;
        font-size: $font-15px;
    }

    .mx_MessageActionBar {
        top: -28px;
        z-index: 9; /* above the avatar */
    }

    .mx_MediaBody {
        /* leave space for the timestamp */
        padding-right: 48px;
    }

    .mx_MImageBody {
        .mx_MImageBody_thumbnail_container {
            justify-content: center;
            min-height: calc(1.8rem + var(--gutterSize) + var(--gutterSize));
            min-width: calc(1.8rem + var(--gutterSize) + var(--gutterSize));
        }
    }

    .mx_LegacyCallEvent {
        background-color: unset;

        border-style: solid;
        border-width: 1px;
        border-color: $quinary-content;
    }

    .mx_ReactionsRow {
        margin-inline: var(--EventTile_bubble_line-margin-inline-start) var(--EventTile_bubble_line-margin-inline-end);
    }

    &[data-self="false"] {
        .mx_EventTile_line {
            border-bottom-right-radius: var(--cornerRadius);

            .mx_MImageBody .mx_MImageBody_thumbnail_container,
            .mx_MImageBody::before,
            .mx_MVideoBody .mx_MVideoBody_container,
            .mx_MediaBody,
            .mx_MLocationBody_map,
            .mx_MBeaconBody {
                border-bottom-right-radius: var(--cornerRadius) !important;
            }
        }

        .mx_EventTile_avatar {
            left: -36px;
        }

        .mx_MessageActionBar {
            inset-inline-start: calc(100% - var(--MessageActionBar-size-box));
            right: initial; /* Reset the default value */
        }

        .mx_ThreadSummary {
            margin-inline-start: calc(-1 * var(--gutterSize));
            margin-inline-end: auto;
        }

        .mx_ReactionsRow {
            justify-content: flex-start;
        }

        --backgroundColor: $eventbubble-others-bg;
    }

    &[data-self="true"] {
        .mx_EventTile_line {
            margin-inline-start: auto;
            border-bottom-left-radius: var(--cornerRadius);

            .mx_MImageBody .mx_MImageBody_thumbnail_container,
            .mx_MImageBody::before,
            .mx_MVideoBody .mx_MVideoBody_container,
            .mx_MediaBody,
            .mx_MLocationBody_map,
            .mx_MBeaconBody {
                border-bottom-left-radius: var(--cornerRadius) !important;
            }
        }

        .mx_EventTile_sticker {
            /* align timestamp with those inside bubbles */
            margin-right: 32px;
        }

        .mx_ThreadSummary {
            margin-inline-start: auto;
            margin-inline-end: calc(-1 * var(--gutterSize));
        }

        .mx_DisambiguatedProfile {
            display: none;
        }

        .mx_ReplyTile .mx_DisambiguatedProfile {
            display: block;
            max-width: 100%;
        }

        .mx_ReactionsRow {
            justify-content: flex-end;

            > :last-child {
                order: -1; /* Moving the "add reaction button" before the reactions */
            }
        }

        .mx_EventTile_avatar {
            top: -19px; /* height of the sender block */
            right: -38px;
        }

        .mx_MediaBody {
            background: $eventbubble-self-bg;
        }

        .mx_MessageActionBar {
            inset-inline-end: 0;
        }

        --backgroundColor: $eventbubble-self-bg;
    }

    .mx_EventTile_line {
        position: relative;
        display: flex;
        gap: 5px var(--EventTile_bubble_gap-inline);
        margin-block: 0;
        margin-inline: var(--EventTile_bubble_line-margin-inline-start) var(--EventTile_bubble_line-margin-inline-end);
        border-top-left-radius: var(--cornerRadius);
        border-top-right-radius: var(--cornerRadius);

        /* the selector here is quite weird because timestamps can appear linked & unlinked and in different places */
        /* in the DOM depending on the specific rendering context */
        > a, /* timestamp wrapper anchor */
        .mx_MessageActionBar + .mx_MessageTimestamp {
            position: absolute;
            padding: 4px 8px;
            bottom: 0;
            right: 0;
            z-index: 3; /* above media and location share maps */
        }

        &.mx_EventTile_mediaLine {
            /* TODO: Use a common class name instead */
            .mx_MFileBody,
            .mx_MAudioBody {
                max-width: 100%; /* avoid overflow */
            }

            .mx_MVoiceMessageBody {
                /* allow the event to be collapsed, this causes the waveform to get cropped */
                min-width: 0;
            }

            /* we put the timestamps for media (other than stickers) atop the media */
            &.mx_EventTile_image {
                .mx_MessageTimestamp {
                    border-radius: var(--MBody-border-radius);
                    /* Hardcoded colours because it's the same on all themes */
                    background-color: rgba(0, 0, 0, 0.6);
                    color: #ffffff;
                    padding: 0px 4px 0px 4px;
                }
            }
        }

        &.mx_EventTile_sticker {
            > a, /* timestamp wrapper anchor */
            .mx_MessageActionBar + .mx_MessageTimestamp {
                /* position timestamps for stickers to the right of the un-bubbled sticker */
                right: unset;
                left: 100%;
            }

            .mx_MStickerBody_wrapper {
                padding: 0;
            }
        }

        .mx_MImageBody {
            width: 100%;
            height: 100%;

            .mx_MImageBody_thumbnail.mx_MImageBody_thumbnail--blurhash {
                position: unset;
            }
        }

        /* noinspection CssReplaceWithShorthandSafely */
        .mx_MImageBody .mx_MImageBody_thumbnail_container,
        .mx_MVideoBody .mx_MVideoBody_container,
        .mx_MediaBody {
            border-radius: unset;
            border-top-left-radius: var(--cornerRadius);
            border-top-right-radius: var(--cornerRadius);
        }

        .mx_EventTile_e2eIcon {
            flex-shrink: 0; /* keep it at full size */

            /* Keep height equal to text for shield alignment, additional 2px because of 1px padding on text */
            height: calc($font-18px + 2px);
        }

        .mx_MPollEndBody {
            /* Prevent the poll end body from exceeding the tile width */
            width: 100%;
        }
    }

    &:not(.mx_EventTile_noBubble) .mx_EventTile_line:not(.mx_EventTile_mediaLine) {
        /* make the top and bottom padding 1px smaller so that we can pad
            .mx_EventTile_content by 1px */
        /* to avoid anti-zalgo cutting off our larger than text emojis. */
        padding: calc(var(--gutterSize) - 1px);
        padding-right: 60px; /* space for the timestamp */
        background: var(--backgroundColor);

        .mx_EventTile_content {
            padding: 1px;
        }
    }

    &.mx_EventTile_continuation[data-self="false"] .mx_EventTile_line {
        border-top-left-radius: 0;

        .mx_MImageBody .mx_MImageBody_thumbnail_container,
        .mx_MVideoBody .mx_MVideoBody_container,
        .mx_MImageBody::before,
        .mx_MediaBody,
        .mx_MLocationBody_map,
        .mx_MBeaconBody {
            border-top-left-radius: 0;
        }
    }
    &.mx_EventTile_lastInSection[data-self="false"] .mx_EventTile_line {
        border-bottom-left-radius: var(--cornerRadius);

        .mx_MImageBody .mx_MImageBody_thumbnail_container,
        .mx_MVideoBody .mx_MVideoBody_container,
        .mx_MImageBody::before,
        .mx_MediaBody,
        .mx_MLocationBody_map,
        .mx_MBeaconBody {
            border-bottom-left-radius: var(--cornerRadius);
        }
    }

    &.mx_EventTile_continuation[data-self="true"] .mx_EventTile_line {
        border-top-right-radius: 0;

        .mx_MImageBody .mx_MImageBody_thumbnail_container,
        .mx_MVideoBody .mx_MVideoBody_container,
        .mx_MImageBody::before,
        .mx_MediaBody,
        .mx_MLocationBody_map,
        .mx_MBeaconBody {
            border-top-right-radius: 0;
        }
    }
    &.mx_EventTile_lastInSection[data-self="true"] .mx_EventTile_line {
        border-bottom-right-radius: var(--cornerRadius);

        .mx_MImageBody .mx_MImageBody_thumbnail_container,
        .mx_MVideoBody .mx_MVideoBody_container,
        .mx_MImageBody::before,
        .mx_MediaBody,
        .mx_MLocationBody_map,
        .mx_MBeaconBody {
            border-bottom-right-radius: var(--cornerRadius);
        }
    }

    &.mx_EventTile_noSender {
        .mx_EventTile_avatar {
            top: -19px;
        }
    }

    &[data-has-reply="true"] {
        > .mx_EventTile_line {
            flex-direction: column;
        }

        .mx_ReplyChain {
            .mx_EventTile_reply {
                max-width: 90%;
                padding: 0;
                > a, /* timestamp wrapper anchor */
                .mx_MessageActionBar + .mx_MessageTimestamp {
                    display: none !important;
                }
            }

            .mx_EventTile {
                display: flex;
                gap: var(--gutterSize);
                .mx_EventTile_avatar {
                    position: static;
                }
                .mx_DisambiguatedProfile {
                    display: none;
                }
            }
        }
    }

    .mx_MPollBody {
        width: 550px; /* to prevent timestamp overlapping summary text */
        max-width: 100%; /* prevent overflowing a reply tile */

        .mx_MPollBody_totalVotes {
            /* align summary text with corner timestamp */
            padding: 4px 0;
        }
    }

    &.mx_EventTile_bad {
        &:hover {
            &::before {
                background: transparent;
            }
        }

        /* Special layout scenario for "Unable To Decrypt (UTD)" events */
        .mx_EventTile_line {
            display: grid;
            grid-template:
                "reply reply" auto
                "shield body" auto
                / auto 1fr;

            .mx_UnknownBody,
            .mx_ReplyChain_wrapper,
            .mx_ViewSourceEvent {
                min-width: 0; /* Prevent a grid blowout */
            }

            .mx_EventTile_e2eIcon {
                grid-area: shield;
                margin-top: auto;
                margin-bottom: auto;
            }

            .mx_UnknownBody,
            .mx_DecryptionFailureBody {
                grid-area: body;
            }

            .mx_ReplyChain_wrapper {
                grid-area: reply;
            }
        }

        &.mx_EventTile_info {
            /* "Unable To Decrypt" layout for hidden events */
            .mx_EventTile_line {
                gap: 0 9px; /* 9px: margin value of E2E icon */
                align-items: center;
                grid-template:
                    "shield source" auto
                    / auto 1fr;

                .mx_ViewSourceEvent {
                    grid-area: source;
                }
            }
        }
    }

    .mx_MTextBody {
        max-width: 100%;
    }

    .mx_LegacyCallEvent_wrapper,
    .mx_CallEvent_wrapper {
        justify-content: center;
    }
}

.mx_EventTile.mx_EventTile_noBubble[data-layout="bubble"] {
    --backgroundColor: transparent;

    .mx_EventTile_line.mx_EventTile_emote {
        padding-right: 60px; /* align with bubbles text */
        font-style: italic;

        > a {
            /* timestamp anchor wrapper */
            align-self: center;
            bottom: unset;
            top: unset;
            font-style: normal; /* undo italic above */
        }

        .mx_MEmoteBody {
            padding: 4px 0;
        }
    }
}

.mx_EventTile.mx_EventTile_bubbleContainer[data-layout="bubble"],
.mx_EventTile.mx_EventTile_leftAlignedBubble[data-layout="bubble"] {
    .mx_EventTile_line > a {
        /* hide this timestamp as the tile will render its own */
        display: none;
    }
}

.mx_EventTile.mx_EventTile_bubbleContainer[data-layout="bubble"],
.mx_EventTile.mx_EventTile_leftAlignedBubble[data-layout="bubble"],
.mx_EventTile.mx_EventTile_info[data-layout="bubble"] {
    padding: 5px 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;

    .mx_EventTile_line,
    .mx_EventTile_info {
        min-width: 100%;
        /* Preserve alignment with left edge of text in bubbles */
        margin: 0;
    }
}

.mx_EventTile.mx_EventTile_bubbleContainer[data-layout="bubble"],
.mx_EventTile.mx_EventTile_leftAlignedBubble[data-layout="bubble"],
.mx_EventTile.mx_EventTile_info[data-layout="bubble"],
.mx_GenericEventListSummary[data-layout="bubble"][data-expanded="false"] {
    --backgroundColor: transparent;
    --gutterSize: 0;

    .mx_EventTile_avatar {
        position: static;
        order: -1;
        margin-inline-end: var(--EventTile_bubble_gap-inline); /* Same spacing between E2E icon and a hidden event */
    }

    .mx_EventTile_e2eIcon {
        margin-inline-start: 0; /* mx_EventTile_avatar has margin-inline-end, so margin is not needed here */
        align-self: center;
    }

    .mx_EventTile_line {
        > a, /* timestamp wrapper anchor */
        .mx_MessageActionBar + .mx_MessageTimestamp {
            right: auto;
            left: -77px;
            bottom: unset;
            align-self: center;

            .mx_MessageTimestamp,
            &.mx_MessageTimestamp {
                vertical-align: middle;
            }
        }
    }
}

.mx_GenericEventListSummary[data-layout="bubble"] {
    .mx_EventTile.mx_EventTile_info .mx_EventTile_line {
        /* Avoid overflow of event info by cancelling width settings */
        width: 100%;
        min-width: 0;
        max-width: 100%;
    }

    /* increase margin between ELS and the next Event to not have our user avatar overlap the expand/collapse button */
    &[data-expanded="false"] + .mx_EventTile[data-layout="bubble"][data-self="true"] {
        margin-top: 20px;
    }

    &[data-expanded="true"] .mx_EventTile_info {
        padding: 2px 0;
        margin-right: 0;

        .mx_MessageActionBar {
            /* Reset .mx_EventTile[data-layout="bubble"][data-self="false"] .mx_MessageActionBar */
            inset-inline-start: initial;
            inset-inline-end: 48px; /* align with that of right-column bubbles */
        }

        .mx_ReadReceiptGroup {
            /* match alignment to RRs of chat bubbles */
            inset-inline-end: calc(-1 * var(--ReadReceiptGroup_EventBubbleTile-spacing-end) + 60px);
        }

        &::before {
            inset-inline-end: 0; /* match alignment of the hover background to that of chat bubbles */
        }
    }
}

.mx_EventTile_tileError[data-layout="bubble"] .mx_EventTile_line {
    flex-direction: column; /* restore the centering */
}