element-web-Github/res/css/views/elements/_StyledCheckbox.pcss

/*
Copyright 2024 New Vector Ltd.
Copyright 2020 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_Checkbox {
    $size: $font-16px;
    $border-radius: 0.27rem;

    display: flex;
    align-items: flex-start;

    input[type="checkbox"] {
        appearance: none;
        margin: 0;
        padding: 0;

        & + label {
            display: flex;
            align-items: center;

            flex-grow: 1;
        }

        & + label > .mx_Checkbox_background {
            display: inline-flex;
            position: relative;

            flex-shrink: 0;

            height: $size;
            width: $size;
            size: 0.5rem;
            border: 1px solid var(--cpd-color-border-interactive-primary);
            box-sizing: border-box;
            border-radius: $border-radius;

            .mx_Checkbox_checkmark {
                display: none;

                height: 100%;
                width: 100%;
                mask-image: url("@vector-im/compound-design-tokens/icons/check.svg");
                mask-position: center;
                mask-size: 100%;
                mask-repeat: no-repeat;
            }
        }

        &:checked + label > .mx_Checkbox_background .mx_Checkbox_checkmark {
            display: block;
        }

        & + label > *:not(.mx_Checkbox_background) {
            margin-left: 10px;
        }

        &:disabled + label {
            cursor: not-allowed;
        }

        &:focus-visible {
            & + label .mx_Checkbox_background {
                @mixin unreal-focus;
            }
        }
    }
}

.mx_Checkbox.mx_Checkbox_kind_solid input[type="checkbox"] {
    & + label > .mx_Checkbox_background .mx_Checkbox_checkmark {
        background: var(--cpd-color-icon-on-solid-primary);
    }

    &:checked + label > .mx_Checkbox_background {
        background: var(--cpd-color-bg-accent-rest);
        border-color: var(--cpd-color-bg-accent-rest);
    }

    &:checked:disabled + label > .mx_Checkbox_background {
        background: var(--cpd-color-bg-action-primary-disabled);
        border-color: var(--cpd-color-bg-action-primary-disabled);
    }
}

.mx_Checkbox.mx_Checkbox_kind_outline input[type="checkbox"] {
    & + label > .mx_Checkbox_background .mx_Checkbox_checkmark {
        background: var(--cpd-color-bg-accent-rest);
    }

    &:checked + label > .mx_Checkbox_background {
        background: transparent;
        border-color: var(--cpd-color-bg-accent-rest);
    }
}