element-web/res/css/_common.pcss

/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017 Vector Creations Ltd
Copyright 2017 - 2019 New Vector Ltd
Copyright 2019 - 2023 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.
*/

@import url("@vector-im/compound-design-tokens/assets/web/css/compound-design-tokens.css");
@import "./_font-sizes.pcss";
@import "./_animations.pcss";
@import "./_spacing.pcss";
@import url("maplibre-gl/dist/maplibre-gl.css");

:root {
    font-size: 10px;

    --container-border-width: 8px;
    --container-gap-width: 8px; /* only even numbers should be used because otherwise we get 0.5px margin values. */
    --transition-short: 0.1s;
    --transition-standard: 0.3s;
    --buttons-dialog-gap-row: $spacing-8;
    --buttons-dialog-gap-column: $spacing-8;
    --MBody-border-radius: 8px;

    /* Expected z-indexes for dialogs:
        4000 - Default wrapper index
        4009 - Static dialog background
        4010 - Static dialog itself
        4011 - Standard dialog background
        4012 - Standard dialog itself

       These are set up such that the static dialog always appears
       underneath the standard dialogs.
     */
    --dialog-zIndex-wrapper-default: 4000;
    --dialog-zIndex-static-background: 4009;
    --dialog-zIndex-static: calc(var(--dialog-zIndex-static-background) + 1); /* 4010 */
    --dialog-zIndex-standard-background: calc(var(--dialog-zIndex-static) + 1); /* 4011 */
    --dialog-zIndex-standard: calc(var(--dialog-zIndex-standard-background) + 1); /* 4012 */
}

/**
 * We need to increase the specificity of the selector to override the
 * custom property set by the design tokens package
 */
[class^="cpd-theme"][class^="cpd-theme"] {
    /**
     * The design tokens package currently does not expose the fallback fonts
     * We want to keep on re-using `$font-family` to not break custom themes
     * and because we can to use `Twemoji` to display emoji rather than using
     * system ones
     */
    --cpd-font-family-sans: $font-family;
}

@media only percy {
    :root {
        --percy-color-avatar: $username-variant2-color;
        --percy-color-displayName: $username-variant1-color;
        --percy-color-replyChain-border: $username-variant1-color;
    }
}

@media (prefers-reduced-motion) {
    :root {
        --transition-short: 0;
        --transition-standard: 0;
    }
}

html {
    /* hack to stop overscroll bounce on OSX and iOS.
       N.B. Breaks things when we have legitimate horizontal overscroll */
    height: 100%;
    overflow: hidden;
    /* Stop similar overscroll bounce in Firefox Nightly for macOS */
    overscroll-behavior: none;
}

body {
    font: var(--cpd-font-body-md-regular);
    letter-spacing: var(--cpd-font-letter-spacing-body-md);
    /**
     * We want to apply Inter Dynamic metrics (https://rsms.me/inter/dynmetrics/)
     * We need to tweak the `letter-spacing` property and doing so, disables by
     * default the optional ligatures
     * `font-feature-settings` allows us to override this behaviour and have the
     * correct ligatures and the proper dynamic metric spacing.
     */
    font-feature-settings: "kern" 1, "liga" 1, "calt" 1;

    background-color: $background;
    color: $primary-content;
    border: 0px;
    margin: 0px;

    /* needed to match the designs correctly on macOS */
    /* see https://github.com/vector-im/element-web/issues/11425 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

pre,
code {
    font-family: $monospace-font-family;
    font-size: 100% !important;
}

.error,
.warning,
.text-error,
.text-warning {
    color: $alert;
}

.text-success {
    color: $accent;
}

.text-muted {
    color: $muted-fg-color;
}

b {
    /* On Firefox, the default weight for `<b>` is `bolder` which results in no bold */
    /* effect since we only have specific weights of our fonts available. */
    font-weight: bold;
}

h2 {
    color: $primary-content;
    font: var(--cpd-font-heading-lg-regular);
    letter-spacing: var(--cpd-font-letter-spacing-heading-lg);
    margin-top: 16px;
    margin-bottom: 16px;
}

a:hover,
a:link,
a:visited {
    color: $accent-alt;
}

input[type="text"],
input[type="search"],
input[type="password"] {
    padding: 9px;
    font: var(--cpd-font-body-md-semibold);
    font-weight: var(--cpd-font-weight-semibold);
    min-width: 0;
}

input[type="text"].mx_textinput_icon,
input[type="search"].mx_textinput_icon {
    padding-left: 36px;
    background-repeat: no-repeat;
    background-position: 10px center;
}

/* FIXME THEME - Tint by CSS rather than referencing a duplicate asset */
input[type="text"].mx_textinput_icon.mx_textinput_search,
input[type="search"].mx_textinput_icon.mx_textinput_search {
    background-image: url("$(res)/img/feather-customised/search-input.svg");
}

/* dont search UI as not all browsers support it, */
/* we implement it ourselves where needed instead */
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-results-button,
input[type="search"]::-webkit-search-results-decoration {
    display: none;
}

/* Override Firefox's UA style so we get a consistent look across browsers */
input::placeholder,
textarea::placeholder {
    opacity: initial;
}

input[type="text"],
input[type="password"],
textarea {
    background-color: transparent;
    color: $primary-content;
}

/* Required by Firefox */
textarea {
    color: $primary-content;
}

input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
    outline: none;
    box-shadow: none;
}

/* This is used to hide the standard outline added by browsers for */
/* accessible (focusable) components. Not intended for buttons, but */
/* should be used on things like focusable containers where the outline */
/* is usually not helping anyone. */
*:focus:not(.focus-visible) {
    outline: none;
}

/* override defaults */
fieldset {
    display: inline-block;
    margin-inline: unset;
    padding-block: unset;
    padding-inline: unset;
    min-inline-size: unset;
    border: none;
}

summary {
    cursor: pointer;
}

legend {
    padding-inline: unset;
    border: none;
}

/* .mx_textinput is a container for a text input */
/* + some other controls like buttons, ... */
/* it has the appearance of a text box so the controls */
/* appear to be part of the input */

.mx_Dialog,
.mx_MatrixChat_wrapper {
    .mx_textinput > input[type="text"],
    .mx_textinput > input[type="search"] {
        border: none;
        flex: 1;
        color: $primary-content;
    }

    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="text"],
    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="search"],
    .mx_textinput {
        display: block;
        box-sizing: border-box;
        background-color: transparent;
        color: $input-darker-fg-color;
        border-radius: 4px;
        border: 1px solid $secondary-hairline-color;
        /* these things should probably not be defined globally */
        margin: 9px;
    }

    .mx_textinput {
        display: flex;
        align-items: center;
    }

    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="text"]::placeholder,
    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="search"]::placeholder,
    .mx_textinput input::placeholder {
        color: $input-placeholder;
    }
}

/*** panels ***/
.dark-panel {
    background-color: $dark-panel-bg-color;

    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="text"],
    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="search"],
    .mx_textinput {
        color: $input-darker-fg-color;
        background-color: $background;
        border: none;
    }
}

.light-panel {
    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="text"],
    :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type="search"],
    .mx_textinput {
        color: $input-darker-fg-color;
        background-color: $input-lighter-bg-color;
        border: none;
    }
}

/* Prevent ugly dotted highlight around selected elements in Firefox */
::-moz-focus-inner {
    border: 0;
}

/* These are magic constants which are excluded from tinting, to let themes */
/* (which only have CSS) tell the app what their non-tinted */
/* colourscheme is by inspecting the stylesheet DOM. */
/* They are not used for layout!! */
#mx_theme_accentColor {
    color: $accent;
}

#mx_theme_secondaryAccentColor {
    color: $secondary-accent-color;
}

.mx_Dialog_wrapper {
    position: fixed;
    z-index: var(--dialog-zIndex-wrapper-default);
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    display: flex;
    align-items: center;
    justify-content: center;
}

.mx_Dialog {
    background-color: $background;
    color: $light-fg-color;
    z-index: var(--dialog-zIndex-standard);
    font-size: $font-15px;
    position: relative;
    padding: 24px;
    max-height: 80%;
    box-shadow: 2px 15px 30px 0 $dialog-shadow-color;
    border-radius: 8px;
    overflow-y: auto;

    .mx_Dialog_staticWrapper & {
        z-index: var(--dialog-zIndex-static);
        contain: content;
    }

    .mx_Dialog_lightbox & {
        border-radius: 0px;
        background-color: transparent;
        width: 100%;
        height: 100%;
        max-width: 100%;
        max-height: 100%;
        pointer-events: none;
        padding: 0;
    }

    /* Styles copied/inspired by GroupLayout, ReplyTile, and EventTile variants. */
    .markdown-body {
        font: var(--cpd-font-body-md-regular) !important;
        letter-spacing: var(--cpd-font-letter-spacing-body-md);
        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) */

        pre,
        code {
            font-family: $monospace-font-family !important;
            background-color: $codeblock-background-color;
        }

        /* this selector wrongly applies to code blocks too but we will unset it in the next one */
        code {
            white-space: pre-wrap; /* don't collapse spaces in inline code blocks */
        }

        pre {
            /* 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 */
            overflow-x: overlay;
            overflow-y: visible;

            &::-webkit-scrollbar-corner {
                background: transparent;
            }

            code {
                white-space: pre; /* we want code blocks to be scrollable and not wrap */

                > * {
                    display: inline;
                }
            }
        }

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

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

        a {
            color: $accent-alt;
        }

        blockquote {
            border-left: 2px solid $blockquote-bar-color;
            border-radius: 2px;
            padding: 0 10px;
        }
    }
}

.mx_Dialog_fixedWidth {
    width: 60vw;
    max-width: 704px;
}

.mx_Dialog_background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: $dialog-backdrop-color;
    opacity: 0.8;
    z-index: var(--dialog-zIndex-standard-background);

    &.mx_Dialog_staticBackground {
        z-index: var(--dialog-zIndex-static-background);
    }

    .mx_Dialog_wrapperWithStaticUnder & {
        /* Roughly half of what it would normally be - we don't want to black out */
        /* the app, just make it clear that the dialogs are stacked. */
        opacity: 0.4;
    }

    .mx_Dialog_lightbox & {
        opacity: $lightbox-background-bg-opacity;
        background-color: $lightbox-background-bg-color;
        animation-name: mx_Dialog_lightbox_background_keyframes;
        animation-duration: 300ms;
    }
}

.mx_Dialog_titleImage {
    vertical-align: sub;
    width: 25px;
    height: 25px;
    margin-left: -2px;
    margin-right: 4px;
    margin-bottom: 2px;
}

.mx_Dialog_title {
    color: $dialog-title-fg-color;
    display: inline-block;
    width: 100%;
    box-sizing: border-box;

    &.danger {
        color: $alert;
    }
}

.mx_Dialog_header {
    position: relative;
    padding: 3px 0;
    margin-bottom: 10px;

    &.mx_Dialog_headerWithButton > .mx_Dialog_title {
        text-align: center;
    }

    &.mx_Dialog_headerWithCancel {
        padding-right: 20px; /* leave space for the 'X' cancel button */
    }

    &.mx_Dialog_headerWithCancelOnly {
        padding: 0 20px 0 0;
        margin: 0;
    }
}

@define-mixin customisedCancelButton {
    mask: url("$(res)/img/cancel.svg");
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: cover;
    background-color: $dialog-close-fg-color;
    cursor: pointer;
    position: unset;
    width: unset;
    height: unset;
}

.mx_Dialog_cancelButton {
    @mixin customisedCancelButton;
    width: 18px;
    height: 18px;
    position: absolute;
    top: 10px;
    right: 0;
}

.mx_Dialog_content {
    margin: 24px 0 68px;
    font: var(--cpd-font-body-md-regular);
    color: $primary-content;
    word-wrap: break-word;
}

.mx_Dialog_buttons {
    margin-top: $spacing-20;
    margin-inline-start: auto;
    text-align: right;

    .mx_Dialog_buttons_additive {
        /* The consumer is responsible for positioning their elements. */
        float: left;
    }

    .mx_Dialog_buttons_row {
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-end;
        text-align: initial;
        margin-inline-start: auto;

        /* default gap among elements */
        column-gap: var(--buttons-dialog-gap-column);
        row-gap: var(--buttons-dialog-gap-row);

        button {
            margin: 0 !important; /* override the margin settings */
        }
    }
}

@define-mixin mx_DialogButton {
    /* align images in buttons (eg spinners) */
    vertical-align: middle;
    border: 0px;
    border-radius: 8px;
    font: var(--cpd-font-body-md-regular);
    color: $button-fg-color;
    background-color: $accent;
    width: auto;
    padding: 7px;
    padding-left: 1.5em;
    padding-right: 1.5em;
    cursor: pointer;
    display: inline-block;

    &:not(.focus-visible) {
        outline: none;
    }
}

/* XXX: Our button style are a mess: buttons that happen to appear in dialogs get special styles applied
 * to them that no button anywhere else in the app gets by default. In practice, buttons in other places
 * in the app look the same by being AccessibleButtons, or possibly by having explict button classes.
 * We should go through and have one consistent set of styles for buttons throughout the app.
 * For now, I am duplicating the selectors here for mx_Dialog and mx_DialogButtons.
 *
 * Elements that should not be styled like a dialog button are mentioned in a :not() pseudo-class.
 * For the widest browser support, we use multiple :not pseudo-classes instead of :not(.a, .b).
 */
.mx_Dialog button:not(.mx_Dialog_nonDialogButton):not([class|="maplibregl"]):not(.mx_AccessibleButton),
.mx_Dialog input[type="submit"],
.mx_Dialog_buttons button:not(.mx_Dialog_nonDialogButton):not(.mx_AccessibleButton),
.mx_Dialog_buttons input[type="submit"] {
    @mixin mx_DialogButton;
    margin-left: 0px;
    margin-right: var(--buttons-dialog-gap-column);
    margin-bottom: 5px;

    /* flip colours for the secondary ones */
    font-weight: var(--cpd-font-weight-semibold);
    border: 1px solid currentColor;
    color: $accent;
    background-color: transparent;
    font-family: inherit;
}

.mx_Dialog button:not(.mx_Dialog_nonDialogButton):not([class|="maplibregl"]):not(.mx_AccessibleButton):last-child {
    margin-right: 0px;
}

.mx_Dialog button:not(.mx_Dialog_nonDialogButton):not([class|="maplibregl"]):not(.mx_AccessibleButton):focus,
.mx_Dialog input[type="submit"]:focus,
.mx_Dialog_buttons button:not(.mx_Dialog_nonDialogButton):not(.mx_AccessibleButton):focus,
.mx_Dialog_buttons input[type="submit"]:focus {
    filter: brightness($focus-brightness);
}

.mx_Dialog button.mx_Dialog_primary:not(.mx_Dialog_nonDialogButton):not([class|="maplibregl"]),
.mx_Dialog input[type="submit"].mx_Dialog_primary,
.mx_Dialog_buttons button.mx_Dialog_primary:not(.mx_Dialog_nonDialogButton):not(.mx_AccessibleButton),
.mx_Dialog_buttons input[type="submit"].mx_Dialog_primary {
    color: $accent-fg-color;
    background-color: $accent;
    min-width: 156px;
}

.mx_Dialog button.danger:not(.mx_Dialog_nonDialogButton):not([class|="maplibregl"]),
.mx_Dialog input[type="submit"].danger,
.mx_Dialog_buttons button.danger:not(.mx_Dialog_nonDialogButton):not(.mx_AccessibleButton),
.mx_Dialog_buttons input[type="submit"].danger {
    background-color: $alert;
    border: solid 1px $alert;
    color: $accent-fg-color;
}

.mx_Dialog button.warning:not(.mx_Dialog_nonDialogButton):not([class|="maplibregl"]),
.mx_Dialog input[type="submit"].warning {
    border: solid 1px $alert;
    color: $alert;
}

.mx_Dialog button:not(.mx_Dialog_nonDialogButton):not([class|="maplibregl"]):not(.mx_AccessibleButton):disabled,
.mx_Dialog input[type="submit"]:disabled,
.mx_Dialog_buttons button:not(.mx_Dialog_nonDialogButton):not(.mx_AccessibleButton):disabled,
.mx_Dialog_buttons input[type="submit"]:disabled {
    background-color: $light-fg-color;
    border: solid 1px $light-fg-color;
    opacity: 0.7;
}

/* Spinner Dialog overide */
.mx_Dialog_wrapper.mx_Dialog_spinner .mx_Dialog {
    width: auto;
    border-radius: 8px;
    padding: 8px;
    box-shadow: none;

    /* Don't show scroll-bars on spinner dialogs */
    overflow-x: hidden;
    overflow-y: hidden;
}

/* TODO: Review mx_GeneralButton usage to see if it can use a different class */
/* These classes were brought in from the old UserSettings and are included here to avoid */
/* breaking the app. */
/* Ref: https://github.com/vector-im/element-web/issues/8420 */
.mx_GeneralButton {
    @mixin mx_DialogButton;
    display: inline;
    margin: auto;
}

.mx_TextInputDialog_label {
    text-align: left;
    padding-bottom: 12px;
}

.mx_TextInputDialog_input {
    font-size: $font-15px;
    border-radius: 3px;
    border: 1px solid $input-border-color;
    padding: 9px;
    color: $primary-content;
    background-color: $background;
}

.mx_button_row {
    margin-top: 69px;
}

/* username colors */
/* used by SenderProfile & RoomPreviewBar */
.mx_Username_color1 {
    color: $username-variant1-color;
}

.mx_Username_color2 {
    color: $username-variant2-color;
}

.mx_Username_color3 {
    color: $username-variant3-color;
}

.mx_Username_color4 {
    color: $username-variant4-color;
}

.mx_Username_color5 {
    color: $username-variant5-color;
}

.mx_Username_color6 {
    color: $username-variant6-color;
}

.mx_Username_color7 {
    color: $username-variant7-color;
}

.mx_Username_color8 {
    color: $username-variant8-color;
}

.mx_AppWarning,
.mx_AppPermission {
    text-align: center;
    display: flex;
    height: 100%;
    flex-direction: column;
    align-items: center;
}

@define-mixin ProgressBarColour $colour {
    color: $colour;
    &::-moz-progress-bar {
        background-color: $colour;
    }
    &::-webkit-progress-value {
        background-color: $colour;
    }
}

@define-mixin ProgressBarBgColour $colour {
    background-color: $colour;
    &::-webkit-progress-bar {
        background-color: $colour;
    }
}

@define-mixin ProgressBarBorderRadius $radius {
    border-radius: $radius;
    &::-moz-progress-bar {
        border-radius: $radius;
    }
    &::-webkit-progress-bar,
    &::-webkit-progress-value {
        border-radius: $radius;
    }
}

@define-mixin unreal-focus {
    outline-width: 2px;
    outline-style: solid;
    outline-color: Highlight;

    /* WebKit gets its native focus styles. */
    @media (-webkit-min-device-pixel-ratio: 0) {
        outline-color: -webkit-focus-ring-color;
        outline-style: auto;
    }
}

@define-mixin ButtonResetDefault {
    appearance: none;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font-size: inherit;
    font-family: inherit;
    line-height: inherit;
    cursor: pointer;
}

@define-mixin LegacyCallButton {
    box-sizing: border-box;
    font-weight: var(--cpd-font-weight-semibold);
    height: $font-24px;
    line-height: $font-24px;
    margin-right: 0;

    span {
        display: flex;
        align-items: center;

        &::before {
            content: "";
            display: inline-block;
            background-color: $button-fg-color;
            mask-position: center;
            mask-repeat: no-repeat;
            margin-right: 8px;
        }
    }
}

@define-mixin ThreadRepliesAmount {
    color: $secondary-content;
    font-weight: var(--cpd-font-weight-semibold);
    white-space: nowrap;
    position: relative;
    padding: 0 $spacing-12 0 $spacing-8;
}

@define-mixin ThreadSummaryIcon {
    content: "";
    display: inline-block;
    mask-image: url("$(res)/img/element-icons/thread-summary.svg");
    mask-position: center;
    mask-repeat: no-repeat;
    mask-size: contain;
    height: 18px;
    min-width: 18px;
    background-color: $icon-button-color !important;
}

@define-mixin composerButtonHighLight {
    /* TODO: Refactor as this will break for apps that override the accent color */
    background: var(--cpd-color-green-300);
    /* make the icon the accent color too */
    &::before {
        background-color: $accent !important;
    }
}

@define-mixin composerButton $border-radius, $hover-color, $hover-bg {
    --size: 26px;
    position: relative;
    cursor: pointer;
    height: var(--size);
    line-height: var(--size);
    width: auto;
    padding-left: var(--size);
    border-radius: $border-radius;

    &::before {
        content: "";
        position: absolute;
        top: 3px;
        left: 3px;
        height: 20px;
        width: 20px;
        background-color: $icon-button-color;
        mask-repeat: no-repeat;
        mask-size: contain;
        mask-position: center;
        z-index: 2;
    }

    &::after {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        z-index: 0;
        width: var(--size);
        height: var(--size);
        border-radius: $border-radius;
    }

    &:hover {
        &::after {
            background: $hover-bg;
        }

        &::before {
            background-color: $hover-color;
        }
    }
}