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

/*
Copyright 2015, 2016 OpenMarket Ltd

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.
*/

.mx_EventTile {
    max-width: 100%;
    clear: both;
    padding-top: 18px;
    font-size: 14px;
    position: relative;
}

.mx_EventTile.mx_EventTile_info {
    padding-top: 0px;
}

.mx_EventTile_avatar {
    position: absolute;
    top: 14px;
    left: 8px;
    cursor: pointer;
}

.mx_EventTile.mx_EventTile_info .mx_EventTile_avatar {
    top: 8px;
    left: 65px;
}

.mx_EventTile_continuation {
    padding-top: 0px ! important;
}

.mx_EventTile .mx_SenderProfile {
    color: $primary-fg-color;
    font-size: 14px;
    display: block; /* anti-zalgo, with overflow hidden */
    overflow-y: hidden;
    cursor: pointer;
    padding-left: 65px; /* left gutter */
    padding-bottom: 0px;
    padding-top: 0px;
    margin: 0px;
    line-height: 22px;
}

.mx_EventTile .mx_SenderProfile .mx_Flair {
    opacity: 0.7;
    margin-left: 5px;
}

.mx_EventTile .mx_SenderProfile .mx_Flair img {
    vertical-align: -2px;
    margin-right: 2px;
    border-radius: 8px;
}

.mx_EventTile .mx_MessageTimestamp {
    display: block;
    visibility: hidden;
    white-space: nowrap;
    color: $event-timestamp-color;
    font-size: 10px;
    left: 0px;
    width: 46px; /* 8 + 30 (avatar) + 8 */
    text-align: center;
    position: absolute;
}

.mx_EventTile_line, .mx_EventTile_reply {
    position: relative;
    /* ideally should be 100px, but 95px gives us a max thumbnail size of 800x600, which is nice */
    margin-right: 110px;
    padding-left: 65px; /* left gutter */
    padding-top: 4px;
    padding-bottom: 2px;
    border-radius: 4px;
    min-height: 24px;
    line-height: 22px;
}

.mx_EventTile_reply {
    margin-right: 10px;
}

.mx_EventTile_info .mx_EventTile_line {
    padding-left: 83px;
}

/* HACK to override line-height which is already marked important elsewhere */
.mx_EventTile_bigEmoji.mx_EventTile_bigEmoji {
    font-size: 48px ! important;
    line-height: 48px ! important;
}

/* this is used for the tile for the event which is selected via the URL.
 * TODO: ultimately we probably want some transition on here.
 */
.mx_EventTile_selected > .mx_EventTile_line {
    border-left: $accent-color 5px solid;
    padding-left: 60px;
    background-color: $event-selected-color;
}

.mx_EventTile:hover .mx_EventTile_line,
.mx_EventTile.menu .mx_EventTile_line
{
    background-color: $event-selected-color;
}

.mx_EventTile_searchHighlight {
    background-color: $accent-color;
    color: $accent-fg-color;
    border-radius: 5px;
    padding-left: 2px;
    padding-right: 2px;
    cursor: pointer;
}

.mx_EventTile_searchHighlight a {
    background-color: $accent-color;
    color: $accent-fg-color;
}

.mx_EventTile_encrypting {
    color: $event-encrypting-color ! important;
}

.mx_EventTile_sending {
    color: $event-sending-color;
}

.mx_EventTile_sending .mx_UserPill,
.mx_EventTile_sending .mx_RoomPill,
.mx_EventTile_sending .mx_emojione {
    opacity: 0.5;
}

.mx_EventTile_notSent {
    color: $event-notsent-color;
}

.mx_EventTile_redacted .mx_EventTile_line .mx_UnknownBody,
.mx_EventTile_redacted .mx_EventTile_reply .mx_UnknownBody {
    display: block;
    width: 100%;
    height: 22px;
    width: 250px;
    border-radius: 11px;
    background: repeating-linear-gradient(
        -45deg,
        $event-redacted-fg-color,
        $event-redacted-fg-color 3px,
        transparent 3px,
        transparent 6px
    );
    box-shadow: 0px 0px 3px $event-redacted-border-color inset;
}

.mx_EventTile_highlight,
.mx_EventTile_highlight .markdown-body
 {
    color: $warning-color;
}

.mx_EventTile_contextual {
    opacity: 0.4;
}

.mx_EventTile_msgOption {
    float: right;
    text-align: right;
    position: relative;
    width: 90px;

    /* Hack to stop the height of this pushing the messages apart.
       Replaces margin-top: -6px. This interacts better with a read
       marker being in between. Content overflows. */
    height: 1px;

    margin-right: 10px;
}

.mx_EventTile_msgOption a {
    text-decoration: none;
}

// Explicit relationships so that it doesn't apply to nested EventTile components (e.g in Replies)
.mx_EventTile_last > div > a > .mx_MessageTimestamp,
.mx_EventTile:hover > div > a > .mx_MessageTimestamp,
.mx_EventTile.menu > div > a > .mx_MessageTimestamp {
    visibility: visible;
}

.mx_MessagePanel_alwaysShowTimestamps .mx_MessageTimestamp {
    visibility: visible;
}

.mx_EventTile_selected > div > a > .mx_MessageTimestamp {
    left: 3px;
    width: auto;
}

.mx_EventTile_editButton {
    position: absolute;
    display: inline-block;
    visibility: hidden;
    cursor: pointer;
    top: 6px;
    right: 6px;
    width: 19px;
    height: 19px;
    background-image: url($edit-button-url);
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.mx_EventTile:hover .mx_EventTile_editButton,
.mx_EventTile.menu .mx_EventTile_editButton {
    visibility: visible;
}

.mx_EventTile_readAvatars {
    position: relative;
    display: inline-block;
    width: 14px;
    height: 14px;
    top: 29px;
}

.mx_EventTile_continuation .mx_EventTile_readAvatars,
.mx_EventTile_info .mx_EventTile_readAvatars,
.mx_EventTile_emote .mx_EventTile_readAvatars {
    top: 7px;
}

.mx_EventTile_readAvatars .mx_BaseAvatar {
    position: absolute;
    display: inline-block;
}

.mx_EventTile_readAvatarRemainder {
    color: $event-timestamp-color;
    font-size: 11px;
    position: absolute;
}

/* all the overflow-y: hidden; are to trap Zalgos -
   but they introduce an implicit overflow-x: auto.
   so make that explicitly hidden too to avoid random
   horizontal scrollbars occasionally appearing, like in
   https://github.com/vector-im/vector-web/issues/1154
    */
.mx_EventTile_content {
    display: block;
    overflow-y: hidden;
    overflow-x: hidden;
    margin-right: 34px;
}

/* De-zalgoing */
.mx_EventTile_body {
    overflow-y: hidden;
}

/* End to end encryption stuff */

.mx_EventTile_e2eIcon {
    display: block;
    position: absolute;
    top: 9px;
    left: 46px;
    cursor: pointer;
}

.mx_EventTile_e2eIcon_hidden {
    display: none;
}

/* always override hidden attribute for blocked and warning */
.mx_EventTile_e2eIcon_hidden[src="img/e2e-blocked.svg"],
.mx_EventTile_e2eIcon_hidden[src="img/e2e-warning.svg"] {
    display: block;
}

.mx_EventTile_keyRequestInfo {
    font-size: 12px;
}

.mx_EventTile_keyRequestInfo_text {
    opacity: 0.5;
}

.mx_EventTile_keyRequestInfo_text a {
    color: $primary-fg-color;
    text-decoration: underline;
    cursor: pointer;
}

.mx_EventTile_keyRequestInfo_tooltip_contents p {
    text-align: auto;
    margin-left: 3px;
    margin-right: 3px;
}

.mx_EventTile_keyRequestInfo_tooltip_contents p:first-child {
    margin-top: 0px;
}

.mx_EventTile_keyRequestInfo_tooltip_contents p:last-child {
    margin-bottom: 0px;
}

.mx_EventTile_12hr .mx_EventTile_e2eIcon {
    padding-left: 5px;
}

.mx_EventTile:hover.mx_EventTile_verified .mx_EventTile_line,
.mx_EventTile:hover.mx_EventTile_unverified .mx_EventTile_line {
    padding-left: 60px;
}

.mx_EventTile_selected.mx_EventTile_info .mx_EventTile_line,
.mx_EventTile:hover.mx_EventTile_verified.mx_EventTile_info .mx_EventTile_line,
.mx_EventTile:hover.mx_EventTile_unverified.mx_EventTile_info .mx_EventTile_line {
    padding-left: 78px;
}

.mx_EventTile:hover.mx_EventTile_verified .mx_EventTile_line {
    border-left: $e2e-verified-color 5px solid;
}
.mx_EventTile:hover.mx_EventTile_unverified .mx_EventTile_line {
    border-left: $e2e-unverified-color 5px solid;
}

// Explicit relationships so that it doesn't apply to nested EventTile components (e.g in Replies)
.mx_EventTile:hover.mx_EventTile_verified .mx_EventTile_line > a > .mx_MessageTimestamp,
.mx_EventTile:hover.mx_EventTile_unverified .mx_EventTile_line > a > .mx_MessageTimestamp {
    left: 3px;
    width: auto;
}

/*
.mx_EventTile_verified .mx_EventTile_e2eIcon {
    display: none;
}
*/

// Explicit relationships so that it doesn't apply to nested EventTile components (e.g in Replies)
.mx_EventTile:hover.mx_EventTile_verified .mx_EventTile_line > .mx_EventTile_e2eIcon,
.mx_EventTile:hover.mx_EventTile_unverified .mx_EventTile_line > .mx_EventTile_e2eIcon {
    display: block;
    left: 41px;
}

/* Various markdown overrides */

.mx_EventTile_content .markdown-body {
    font-family: inherit ! important;
    white-space: normal ! important;
    line-height: inherit ! important;
    color: inherit; // inherit the colour from the dark or light theme by default (but not for code blocks)
    font-size: 14px;
}

/* have to use overlay rather than auto otherwise Linux and Windows
   Chrome gets very confused about vertical spacing:
   https://github.com/vector-im/vector-web/issues/754
*/
.mx_EventTile_content .markdown-body pre {
    overflow-x: overlay;
    overflow-y: visible;
    max-height: 30vh;
}

.mx_EventTile_content .markdown-body code {
    // deliberate constants as we're behind an invert filter
    background-color: #f8f8f8;
    color: #333;
}

.mx_EventTile_pre_container {
    // For correct positioning of _copyButton (See TextualBody)
    position: relative;
}

// Inserted adjacent to <pre> blocks, (See TextualBody)
.mx_EventTile_copyButton {
    position: absolute;
    display: inline-block;
    visibility: hidden;
    cursor: pointer;
    top: 6px;
    right: 6px;
    width: 19px;
    height: 19px;
    background-image: url($copy-button-url);
}

.mx_EventTile_body pre {
    border: 1px solid transparent;
}

.mx_EventTile:hover .mx_EventTile_body pre
{
    border: 1px solid #e5e5e5; // deliberate constant as we're behind an invert filter
}

.mx_EventTile_body .mx_EventTile_pre_container:hover .mx_EventTile_copyButton
{
    visibility: visible;
}

.mx_EventTile_content .markdown-body h1,
.mx_EventTile_content .markdown-body h2,
.mx_EventTile_content .markdown-body h3,
.mx_EventTile_content .markdown-body h4,
.mx_EventTile_content .markdown-body h5,
.mx_EventTile_content .markdown-body h6
{
    font-family: inherit ! important;
    color: inherit;
}


/* Make h1 and h2 the same size as h3. */
.mx_EventTile_content .markdown-body h1,
.mx_EventTile_content .markdown-body h2
{
    font-size: 1.5em;
    border-bottom: none ! important; // override GFM
}

.mx_EventTile_content .markdown-body a {
    color: $accent-color;
}

.mx_EventTile_content .markdown-body .hljs {
    display: inline ! important;
}

/* end of overrides */

.mx_MatrixChat_useCompactLayout {
    .mx_EventTile {
        padding-top: 4px;
    }

    .mx_EventTile.mx_EventTile_info {
        // same as the padding for non-compact .mx_EventTile.mx_EventTile_info
        padding-top: 0px;
        font-size: 13px;
        .mx_EventTile_line, .mx_EventTile_reply {
            line-height: 20px;
        }
        .mx_EventTile_avatar {
            top: 4px;
        }
    }

    .mx_EventTile .mx_SenderProfile {
        font-size: 13px;
    }

    .mx_EventTile.mx_EventTile_emote {
        // add a bit more space for emotes so that avatars don't collide
        padding-top: 8px;
        .mx_EventTile_avatar {
            top: 2px;
        }
        .mx_EventTile_line, .mx_EventTile_reply {
            padding-top: 0px;
            padding-bottom: 1px;
        }
    }

    .mx_EventTile.mx_EventTile_emote.mx_EventTile_continuation {
        padding-top: 0;
        .mx_EventTile_line, .mx_EventTile_reply {
            padding-top: 0px;
            padding-bottom: 0px;
        }
    }

    .mx_EventTile_line, .mx_EventTile_reply {
        padding-top: 0px;
        padding-bottom: 0px;
    }

    .mx_EventTile_avatar {
        top: 2px;
    }

    .mx_EventTile_e2eIcon {
        top: 7px;
    }

    .mx_EventTile_editButton {
        top: 3px;
    }

    .mx_EventTile_readAvatars {
        top: 27px;
    }

    .mx_EventTile_continuation .mx_EventTile_readAvatars,
    .mx_EventTile_emote .mx_EventTile_readAvatars {
        top: 5px;
    }

    .mx_EventTile_info .mx_EventTile_readAvatars {
        top: 4px;
    }

    .mx_RoomView_MessageList h2 {
        margin-top: 6px;
    }

    .mx_EventTile_content .markdown-body {
      p, ul, ol, dl, blockquote, pre, table {
        margin-bottom: 4px; // 1/4 of the non-compact margin-bottom
      }
    }
}