@import './var.less';
@import './mixin.less';

// Button styles
// -----------------------------
.@{button-prefix-cls} {
  // Fixing https://github.com/ant-design/ant-design/issues/12978
  // Fixing https://github.com/ant-design/ant-design/issues/20058
  // Fixing https://github.com/ant-design/ant-design/issues/19972
  // Fixing https://github.com/ant-design/ant-design/issues/18107
  // Fixing https://github.com/ant-design/ant-design/issues/13214
  // It is a render problem of chrome, which is only happened in the codesandbox demo
  // 0.001px solution works and I don't why
  line-height: @button-line-height;
  .btn();
  .btn-default();

  // Fix loading button animation
  // https://github.com/ant-design/ant-design/issues/24323
  >span {
    display: inline-block;
  }

  &-primary {
    .btn-primary();

    .button-type-group();
  }

  &-blue {
    .btn-blue();

    .button-type-group();
  }

  &-gray {
    .btn-gray();

    .button-type-group();
  }

  &-ghost {
    .btn-ghost();
  }

  &-dashed {
    .btn-dashed();
  }

  // type="danger" will deprecated
  // use danger instead
  &-danger {
    .btn-danger();
  }

  &-link {
    .btn-link();
  }

  &-text {
    .btn-text();
  }

  &-dangerous {
    .btn-danger-default();
  }

  &-dangerous&-primary {
    .btn-danger();
  }

  &-dangerous&-link {
    .btn-danger-link();
  }

  &-dangerous&-text {
    .btn-danger-text();
  }

  &-icon-only {
    .btn-square(@button-prefix-cls);
    vertical-align: -1 * @hd;
  }

  &-round {
    .btn-round(@button-prefix-cls);

    &.@{button-prefix-cls}-icon-only {
      width: auto;
    }
  }

  &-circle {
    .btn-circle(@button-prefix-cls);
  }

  &::before {
    position: absolute;
    top: -@button-border-width;
    right: -@button-border-width;
    bottom: -@button-border-width;
    left: -@button-border-width;
    z-index: 1;
    display: none;
    background: @component-background;
    border-radius: inherit;
    opacity: 0.35;
    transition: opacity 0.2s;
    content: '';
    pointer-events: none;
  }

  .@{iconfont-css-prefix} {
    transition: margin-left 0.3s @ease-in-out;

    // Follow icon blur under windows. Change the render.
    // https://github.com/ant-design/ant-design/issues/13924
    &.@{iconfont-css-prefix}-plus,
    &.@{iconfont-css-prefix}-minus {
      >svg {
        shape-rendering: optimizeSpeed;
      }
    }
  }

  &&-loading {
    position: relative;

    &:not([disabled]) {
      pointer-events: none;
    }

    &::before {
      display: block;
    }
  }

  &>&-loading-icon {
    transition: all 0.3s @ease-in-out;

    .@{iconfont-css-prefix} {
      padding-right: @padding-xs;
      animation: none;

      // for smooth button padding transition
      svg {
        animation: loadingCircle 1s infinite linear;
      }
    }

    &:only-child {
      .@{iconfont-css-prefix} {
        padding-right: 0;
      }
    }
  }

  &-group {
    .btn-group(@button-prefix-cls);
  }

  // http://stackoverflow.com/a/21281554/3040605
  &:focus>span,
  &:active>span {
    position: relative;
  }

  // To ensure that a space will be placed between character and `Icon`.
  >.@{iconfont-css-prefix}+span,
  >span+.@{iconfont-css-prefix} {
    margin-left: @margin-xs;
  }

  &-background-ghost {
    color: @button-default-ghost-color;
    background: @button-default-ghost-bg  !important;
    border-color: @button-default-ghost-border;
  }

  &-background-ghost&-primary {
    .button-variant-ghost(@button-primary-bg);
  }

  &-background-ghost&-danger {
    .button-variant-ghost(@button-danger-border);
  }

  &-background-ghost&-dangerous {
    .button-variant-ghost(@button-danger-border);
  }

  &-background-ghost&-dangerous&-link {
    .button-variant-ghost(@button-danger-border, transparent);
  }

  &-two-chinese-chars::first-letter {
    letter-spacing: 0.34em;
  }

  &-two-chinese-chars>*:not(.@{iconfont-css-prefix}) {
    margin-right: -0.34em;
    letter-spacing: 0.34em;
  }

  &-block {
    width: 100%;
  }

  // https://github.com/ant-design/ant-design/issues/12681
  // same method as Select
  &:empty {
    display: inline-block;
    width: 0;
    visibility: hidden;
    content: '\a0';
  }
}

a.@{button-prefix-cls} {
  // Fixing https://github.com/ant-design/ant-design/issues/12978
  // https://github.com/ant-design/ant-design/issues/29978
  // It is a render problem of chrome, which is only happened in the codesandbox demo
  // 0.1px for padding-top solution works and I don't why
  padding-top: 0.01PX !important;
  line-height: @button-height-base - 2 * @hd;

  &-lg {
    line-height: @button-height-lg - 2 * @hd;
  }

  &-sm {
    line-height: @button-height-sm - 2 * @hd;
  }
}

@import './rtl.less';
