element-web/res/css/structures/_RoomView.pcss

/*
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.
*/

:root {
    --RoomView_MessageList-padding: 18px;
}

.mx_RoomView_wrapper {
    display: flex;
    flex-direction: column;
    flex: 1;
    position: relative;
    justify-content: center;
    /* Contain the amount of layers rendered by constraining what actually needs re-layering via css */
    contain: strict;
}

.mx_RoomView {
    word-wrap: break-word;
    display: flex;
    flex-direction: column;
    flex: 1;
    position: relative;

    .mx_MainSplit {
        flex: 1 1 0;
    }

    .mx_MessageComposer {
        width: 100%;
        flex: 0 0 auto;
        margin-right: 2px;
    }
}

.mx_RoomView_auxPanel_hiddenHighlights {
    border-bottom: 1px solid $primary-hairline-color;
    padding: 10px 26px;
    color: $alert;
    cursor: pointer;
}

.mx_RoomView_messagePanel {
    width: 100%;
    overflow-y: auto;
    flex: 1 1 0;
    overflow-anchor: none;
}

.mx_RoomView_messagePanelSearchSpinner {
    flex: 1;
    background-image: url("$(res)/img/typing-indicator-2x.gif");
    background-position: center 367px;
    background-size: 25px;
    background-repeat: no-repeat;
    position: relative;

    &::before {
        background-color: $info-plinth-fg-color;
        mask: url("$(res)/img/feather-customised/search-input.svg");
        mask-repeat: no-repeat;
        mask-position: center;
        mask-size: 50px;
        content: "";
        position: absolute;
        top: 286px;
        left: 0;
        right: 0;
        height: 50px;
    }
}

.mx_RoomView_body {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;

    .mx_RoomView_messagePanel,
    .mx_RoomView_messagePanelSpinner,
    .mx_RoomView_messagePanelSearchSpinner {
        order: 2;
    }

    .mx_RoomView_timeline {
        /* offset parent for mx_RoomView_topUnreadMessagesBar  */
        position: relative;
        flex: 1;
        display: flex;
        flex-direction: column;
        margin-right: calc(var(--container-gap-width) / 2);
    }
}

.mx_RoomView_statusArea {
    width: 100%;
    flex: 0 0 auto;

    max-height: 0px;
    background-color: $background;
    z-index: 1000;
    overflow: hidden;

    transition: all 0.2s ease-out;
}

.mx_RoomView_statusArea_expanded {
    max-height: 100px;
}

.mx_RoomView_statusAreaBox {
    margin: auto;
    min-height: 50px;
}

.mx_RoomView_statusAreaBox_line {
    margin-left: 65px;
    border-top: 1px solid $primary-hairline-color;
    height: 1px;
}

.mx_RoomView_messageListWrapper {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
}

.mx_RoomView_searchResultsPanel {
    .mx_RoomView_messageListWrapper {
        justify-content: flex-start;

        > .mx_RoomView_MessageList > li > ol {
            list-style-type: none;
        }
    }

    a {
        text-decoration: none;
        color: inherit;
    }
}

.mx_RoomView_empty {
    font-size: $font-13px;
    padding: 0 24px;
    margin-right: 30px;
    text-align: center;
    margin-bottom: 80px; /* visually center the content (intentional offset) */
}

.mx_RoomView_MessageList {
    list-style-type: none;
    padding: var(--RoomView_MessageList-padding); /* mx_ProfileResizer depends on this value */
    margin: 0;
    /* needed as min-height is set to clientHeight in ScrollPanel
    to prevent shrinking when WhoIsTypingTile is hidden */
    box-sizing: border-box;

    li {
        clear: both;
    }

    .mx_ScrollPanel & {
        position: relative;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;

        content-visibility: auto;
        contain-intrinsic-size: 50px;
    }

    .mx_RoomView--local .mx_ScrollPanel & {
        justify-content: center;
    }
}

/* Rooms with immersive content */
.mx_RoomView_immersive .mx_RoomHeader_wrapper {
    border: unset;
}

.mx_RoomView_inCall {
    .mx_RoomView_statusAreaBox_line {
        margin-top: 2px;
        border: none;
        height: 0px;
    }

    .mx_MessageComposer_wrapper {
        border-top: 2px hidden;
        padding-top: 1px;
    }
}

.mx_MatrixChat_useCompactLayout {
    .mx_RoomView_MessageList {
        margin-bottom: 4px;

        h2 {
            margin-top: 6px;
        }
    }

    .mx_RoomView_statusAreaBox {
        min-height: 42px;
    }
}

@keyframes mx_Indicator_pulse {
    0% {
        transform: scale(0.95);
    }

    70% {
        transform: scale(1);
    }

    100% {
        transform: scale(0.95);
    }
}

@keyframes mx_Indicator_pulse_shadow {
    0% {
        opacity: 0.7;
    }

    70% {
        transform: scale(2.2);
        opacity: 0;
    }

    100% {
        opacity: 0;
    }
}

.mx_Indicator {
    position: absolute;
    right: -3px;
    top: -3px;
    width: var(--RoomHeader-indicator-dot-size);
    height: var(--RoomHeader-indicator-dot-size);
    border-radius: 50%;
    transform: scale(1);
    background: var(--RoomHeader-indicator-pulseColor);
    box-shadow: 0 0 0 0 var(--RoomHeader-indicator-pulseColor);
    animation: mx_Indicator_pulse 2s infinite;
    animation-iteration-count: 1;

    &::after {
        content: "";
        position: absolute;
        width: inherit;
        height: inherit;
        top: 0;
        left: 0;
        transform: scale(1);
        transform-origin: center center;
        animation-name: mx_Indicator_pulse_shadow;
        animation-duration: inherit;
        animation-iteration-count: inherit;
        border-radius: 50%;
        background: inherit;
    }
}