packages/core/styles/components/button.pcss

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

:root {
  --ifm-button-background-color: inherit;
  --ifm-button-border-color: var(--ifm-button-background-color);
  --ifm-button-border-width: var(--ifm-global-border-width);
  --ifm-button-color: var(--ifm-font-color-base-inverse);
  --ifm-button-font-weight: var(--ifm-font-weight-bold);
  --ifm-button-padding-horizontal: 1.5rem;
  --ifm-button-padding-vertical: 0.375rem;
  --ifm-button-size-multiplier: 1;
  --ifm-button-transition-duration: var(--ifm-transition-fast);
  --ifm-button-border-radius: calc(
    var(--ifm-global-radius) * var(--ifm-button-size-multiplier)
  );
}

.button {
  background-color: var(--ifm-button-background-color);
  border-color: var(--ifm-button-border-color);
  border-radius: var(--ifm-button-border-radius);
  border-style: solid;
  border-width: var(--ifm-button-border-width);
  color: var(--ifm-button-color);
  cursor: pointer;
  display: inline-block;
  font-size: calc(0.875rem * var(--ifm-button-size-multiplier));
  font-weight: var(--ifm-button-font-weight);
  line-height: 1.5;
  padding: calc(
      var(--ifm-button-padding-vertical) * var(--ifm-button-size-multiplier)
    )
    calc(
      var(--ifm-button-padding-horizontal) * var(--ifm-button-size-multiplier)
    );
  text-align: center;
  user-select: none;
  vertical-align: middle;
  white-space: nowrap;
  @mixin transition color background border-color,
    var(--ifm-button-transition-duration), var(--ifm-transition-timing-default);

  &:hover {
    color: var(--ifm-button-color); /* Override for button links. */
    text-decoration: none;
  }

  &--outline {
    --ifm-button-background-color: transparent;
    --ifm-button-color: var(--ifm-button-border-color);

    &:hover {
      --ifm-button-background-color: var(--ifm-button-border-color);
    }

    &:hover,
    &:active,
    &^&--active {
      --ifm-button-color: var(--ifm-font-color-base-inverse);
    }
  }

  &--link {
    --ifm-button-background-color: transparent;
    --ifm-button-border-color: transparent;

    color: var(--ifm-link-color);
    /* autoprefixer: ignore next */
    text-decoration: var(--ifm-link-decoration);

    &:hover,
    &:active,
    &^&--active {
      color: var(--ifm-link-hover-color);
      /* autoprefixer: ignore next */
      text-decoration: var(--ifm-link-hover-decoration);
    }
  }

  &.disabled,
  &:disabled,
  &[disabled] {
    opacity: 0.65;
    pointer-events: none;
  }

  &--sm {
    --ifm-button-size-multiplier: 0.8;
  }

  &--lg {
    --ifm-button-size-multiplier: 1.35;
  }

  &--block {
    display: block;
    width: 100%;
  }

  &&--secondary {
    color: var(--ifm-color-gray-900);

    &.button--outline:not(.button--active):not(:hover) {
      color: var(--ifm-font-color-base);
    }
  }
}

@each $color in (primary, secondary, success, info, warning, danger) {
  .button--$(color) {
    --ifm-button-border-color: var(--ifm-color-$(color));

    &:not(.button--outline) {
      --ifm-button-background-color: var(--ifm-color-$(color));

      &:hover {
        --ifm-button-background-color: var(--ifm-color-$(color)-dark);
        --ifm-button-border-color: var(--ifm-color-$(color)-dark);
      }
    }
  }

  /* Increase specificity. */
  .button--$(color) {
    &:active,
    &.button--active {
      --ifm-button-border-color: var(--ifm-color-$(color)-darker);
      --ifm-button-background-color: var(--ifm-color-$(color)-darker);

      /* Has to be explicitly defined because .button--outline has quite high specificity. */
      background-color: var(--ifm-color-$(color)-darker);
      /* Has to be explicitly defined because .button--outline has quite high specificity. */
      border-color: var(--ifm-color-$(color)-darker);
    }
  }
}