init

node_modules/ng-zorro-antd/dropdown/style/entry.less

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+@import './index.less';
+@import './patch.less';
+// style dependencies
+@import '../../button/style/entry.less';

node_modules/ng-zorro-antd/dropdown/style/index.less

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+@import '../../style/themes/index';
+@import '../../style/mixins/index';
+@import './status';
+
+@dropdown-prefix-cls: ~'@{ant-prefix}-dropdown';
+
+.@{dropdown-prefix-cls} {
+  .reset-component();
+
+  --antd-arrow-background-color: @dropdown-menu-bg;
+
+  position: absolute;
+  top: -9999px;
+  left: -9999px;
+  z-index: @zindex-dropdown;
+  display: block;
+
+  &::before {
+    position: absolute;
+    inset-block: calc(@popover-arrow-width / 2 - @popover-distance);
+    z-index: -9999;
+    opacity: 0.0001;
+    content: '';
+  }
+
+  &-wrap {
+    position: relative;
+
+    .@{ant-prefix}-btn > .@{iconfont-css-prefix}-down {
+      font-size: 10px;
+    }
+
+    .@{iconfont-css-prefix}-down::before {
+      transition: transform @animation-duration-base;
+    }
+  }
+
+  &-wrap-open {
+    .@{iconfont-css-prefix}-down::before {
+      transform: rotate(180deg);
+    }
+  }
+
+  &-hidden,
+  &-menu-hidden,
+  &-menu-submenu-hidden {
+    display: none;
+  }
+
+  // Arrow Style
+  .placementArrow(@popover-arrow-width, 4px, @arrow-border-radius, var(--antd-arrow-background-color), @popover-arrow-box-shadow);
+
+  &-menu {
+    position: relative;
+    margin: 0;
+    padding: @dropdown-edge-child-vertical-padding 0;
+    text-align: left;
+    list-style-type: none;
+    background-color: @dropdown-menu-bg;
+    background-clip: padding-box;
+    border-radius: @border-radius-base;
+    outline: none;
+    box-shadow: @box-shadow-base;
+
+    &-item-group-title {
+      padding: 5px @control-padding-horizontal;
+      color: @text-color-secondary;
+      transition: all @animation-duration-slow;
+    }
+
+    &-submenu-popup {
+      position: absolute;
+      z-index: @zindex-dropdown;
+      background: transparent;
+      box-shadow: none;
+      transform-origin: 0 0;
+
+      ul,
+      li {
+        list-style: none;
+      }
+
+      ul {
+        margin-right: 0.3em;
+        margin-left: 0.3em;
+      }
+    }
+
+    // ======================= Item Content =======================
+    &-item {
+      position: relative;
+      display: flex;
+      align-items: center;
+    }
+
+    &-item-icon {
+      min-width: 12px;
+      margin-right: 8px;
+      font-size: @font-size-sm;
+    }
+
+    &-title-content {
+      flex: auto;
+
+      > a {
+        color: inherit;
+        transition: all @animation-duration-slow;
+
+        &:hover {
+          color: inherit;
+        }
+
+        &::after {
+          position: absolute;
+          top: 0;
+          right: 0;
+          bottom: 0;
+          left: 0;
+          content: '';
+        }
+      }
+    }
+
+    // =========================== Item ===========================
+    &-item,
+    &-submenu-title {
+      clear: both;
+      margin: 0;
+      padding: @dropdown-vertical-padding @control-padding-horizontal;
+      color: @text-color;
+      font-weight: normal;
+      font-size: @dropdown-font-size;
+      line-height: @dropdown-line-height;
+      cursor: pointer;
+      transition: all @animation-duration-slow;
+
+      &:first-child {
+        & when (@dropdown-edge-child-vertical-padding = 0) {
+          border-radius: @border-radius-base @border-radius-base 0 0;
+        }
+      }
+
+      &:last-child {
+        & when (@dropdown-edge-child-vertical-padding = 0) {
+          border-radius: 0 0 @border-radius-base @border-radius-base;
+        }
+      }
+
+      &-selected {
+        color: @dropdown-selected-color;
+        background-color: @dropdown-selected-bg;
+      }
+
+      &:hover,
+      &&-active {
+        background-color: @item-hover-bg;
+      }
+
+      &&-disabled {
+        color: @disabled-color;
+        cursor: not-allowed;
+
+        &:hover {
+          color: @disabled-color;
+          background-color: @dropdown-menu-submenu-disabled-bg;
+          cursor: not-allowed;
+        }
+
+        a {
+          pointer-events: none;
+        }
+      }
+
+      &-divider {
+        height: 1px;
+        margin: 4px 0;
+        overflow: hidden;
+        line-height: 0;
+        background-color: @border-color-split;
+      }
+
+      .@{dropdown-prefix-cls}-menu-submenu-expand-icon {
+        position: absolute;
+        right: @padding-xs;
+
+        .@{dropdown-prefix-cls}-menu-submenu-arrow-icon {
+          margin-right: 0 !important;
+          color: @text-color-secondary;
+          font-size: 10px;
+          font-style: normal;
+        }
+      }
+    }
+
+    &-item-group-list {
+      margin: 0 8px;
+      padding: 0;
+      list-style: none;
+    }
+
+    &-submenu-title {
+      padding-right: @control-padding-horizontal + @font-size-sm;
+    }
+
+    &-submenu-vertical {
+      position: relative;
+    }
+
+    &-submenu-vertical > & {
+      position: absolute;
+      top: 0;
+      left: 100%;
+      min-width: 100%;
+      margin-left: 4px;
+      transform-origin: 0 0;
+    }
+
+    &-submenu&-submenu-disabled .@{dropdown-prefix-cls}-menu-submenu-title {
+      &,
+      .@{dropdown-prefix-cls}-menu-submenu-arrow-icon {
+        color: @disabled-color;
+        background-color: @dropdown-menu-submenu-disabled-bg;
+        cursor: not-allowed;
+      }
+    }
+
+    // https://github.com/ant-design/ant-design/issues/19264
+    &-submenu-selected &-submenu-title {
+      color: @primary-color;
+    }
+  }
+
+  &.@{ant-prefix}-slide-down-enter.@{ant-prefix}-slide-down-enter-active&-placement-bottomLeft,
+  &.@{ant-prefix}-slide-down-appear.@{ant-prefix}-slide-down-appear-active&-placement-bottomLeft,
+  &.@{ant-prefix}-slide-down-enter.@{ant-prefix}-slide-down-enter-active&-placement-bottom,
+  &.@{ant-prefix}-slide-down-appear.@{ant-prefix}-slide-down-appear-active&-placement-bottom,
+  &.@{ant-prefix}-slide-down-enter.@{ant-prefix}-slide-down-enter-active&-placement-bottomRight,
+  &.@{ant-prefix}-slide-down-appear.@{ant-prefix}-slide-down-appear-active&-placement-bottomRight {
+    animation-name: antSlideUpIn;
+  }
+
+  &.@{ant-prefix}-slide-up-enter.@{ant-prefix}-slide-up-enter-active&-placement-topLeft,
+  &.@{ant-prefix}-slide-up-appear.@{ant-prefix}-slide-up-appear-active&-placement-topLeft,
+  &.@{ant-prefix}-slide-up-enter.@{ant-prefix}-slide-up-enter-active&-placement-top,
+  &.@{ant-prefix}-slide-up-appear.@{ant-prefix}-slide-up-appear-active&-placement-top,
+  &.@{ant-prefix}-slide-up-enter.@{ant-prefix}-slide-up-enter-active&-placement-topRight,
+  &.@{ant-prefix}-slide-up-appear.@{ant-prefix}-slide-up-appear-active&-placement-topRight {
+    animation-name: antSlideDownIn;
+  }
+
+  &.@{ant-prefix}-slide-down-leave.@{ant-prefix}-slide-down-leave-active&-placement-bottomLeft,
+  &.@{ant-prefix}-slide-down-leave.@{ant-prefix}-slide-down-leave-active&-placement-bottom,
+  &.@{ant-prefix}-slide-down-leave.@{ant-prefix}-slide-down-leave-active&-placement-bottomRight {
+    animation-name: antSlideUpOut;
+  }
+
+  &.@{ant-prefix}-slide-up-leave.@{ant-prefix}-slide-up-leave-active&-placement-topLeft,
+  &.@{ant-prefix}-slide-up-leave.@{ant-prefix}-slide-up-leave-active&-placement-top,
+  &.@{ant-prefix}-slide-up-leave.@{ant-prefix}-slide-up-leave-active&-placement-topRight {
+    animation-name: antSlideDownOut;
+  }
+}
+
+.@{dropdown-prefix-cls}-trigger,
+.@{dropdown-prefix-cls}-link,
+.@{dropdown-prefix-cls}-button {
+  > .@{iconfont-css-prefix}.@{iconfont-css-prefix}-down {
+    font-size: 10px;
+    vertical-align: baseline;
+  }
+}
+
+.@{dropdown-prefix-cls}-button {
+  white-space: nowrap;
+
+  &.@{ant-prefix}-btn-group > .@{ant-prefix}-btn {
+    &-loading,
+    &-loading + .@{ant-prefix}-btn {
+      cursor: default;
+      pointer-events: none;
+    }
+
+    &-loading + .@{ant-prefix}-btn::before {
+      display: block;
+    }
+
+    &:last-child:not(:first-child):not(.@{ant-prefix}-btn-icon-only) {
+      padding-right: @padding-xs;
+      padding-left: @padding-xs;
+    }
+  }
+}
+
+// https://github.com/ant-design/ant-design/issues/4903
+.@{dropdown-prefix-cls}-menu-dark {
+  &,
+  .@{dropdown-prefix-cls}-menu {
+    background: @menu-dark-bg;
+  }
+  .@{dropdown-prefix-cls}-menu-item,
+  .@{dropdown-prefix-cls}-menu-submenu-title,
+  .@{dropdown-prefix-cls}-menu-item > a,
+  .@{dropdown-prefix-cls}-menu-item > .@{iconfont-css-prefix} + span > a {
+    color: @text-color-secondary-dark;
+    .@{dropdown-prefix-cls}-menu-submenu-arrow::after {
+      color: @text-color-secondary-dark;
+    }
+
+    &:hover {
+      color: @text-color-inverse;
+      background: transparent;
+    }
+  }
+  .@{dropdown-prefix-cls}-menu-item-selected {
+    &,
+    &:hover,
+    > a {
+      color: @text-color-inverse;
+      background: @primary-color;
+    }
+  }
+}
+
+@import './rtl';

node_modules/ng-zorro-antd/dropdown/style/patch.less

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+.ant-dropdown-menu {
+  & > ul {
+    margin: 0;
+    padding: 0;
+    list-style: inherit;
+  }
+}
+
+.ant-dropdown {
+  position: relative;
+  inset: 0;
+
+  &:not(:has(.ant-dropdown-arrow)) {
+    margin-block: calc(@popover-distance - @popover-arrow-width / 2)
+  }
+}
+
+.@{dropdown-prefix-cls} {
+  &-menu {
+    &-item,
+    &-submenu-title {
+      .@{dropdown-prefix-cls}-menu-submenu-arrow {
+        .@{dropdown-prefix-cls}-rtl & {
+          transform: rotate(180deg);
+        }
+      }
+    }
+  }
+}

node_modules/ng-zorro-antd/dropdown/style/rtl.less

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+@import '../../style/themes/index';
+@import '../../style/mixins/index';
+
+@dropdown-prefix-cls: ~'@{ant-prefix}-dropdown';
+
+.@{dropdown-prefix-cls} {
+  &-rtl {
+    direction: rtl;
+  }
+
+  &::before {
+    .@{dropdown-prefix-cls}-rtl& {
+      right: -7px;
+      left: 0;
+    }
+  }
+
+  &-menu {
+    &&-rtl {
+      direction: rtl;
+      text-align: right;
+    }
+
+    &-item-group-title {
+      .@{dropdown-prefix-cls}-rtl &,
+      .@{dropdown-prefix-cls}-menu-submenu-rtl & {
+        direction: rtl;
+        text-align: right;
+      }
+    }
+
+    &-submenu-popup {
+      &.@{dropdown-prefix-cls}-menu-submenu-rtl {
+        transform-origin: 100% 0;
+      }
+
+      ul,
+      li {
+        .@{dropdown-prefix-cls}-rtl & {
+          text-align: right;
+        }
+      }
+    }
+
+    &-item,
+    &-submenu-title {
+      .@{dropdown-prefix-cls}-rtl & {
+        text-align: right;
+      }
+
+      > .@{iconfont-css-prefix}:first-child,
+      > span > .@{iconfont-css-prefix}:first-child {
+        .@{dropdown-prefix-cls}-rtl & {
+          margin-right: 0;
+          margin-left: 8px;
+        }
+      }
+
+      .@{dropdown-prefix-cls}-menu-submenu-expand-icon {
+        .@{dropdown-prefix-cls}-rtl & {
+          right: auto;
+          left: @padding-xs;
+        }
+
+        .@{dropdown-prefix-cls}-menu-submenu-arrow-icon {
+          .@{dropdown-prefix-cls}-rtl & {
+            margin-left: 0 !important;
+            transform: scaleX(-1);
+          }
+        }
+      }
+    }
+
+    &-submenu-title {
+      .@{dropdown-prefix-cls}-rtl & {
+        padding-right: @control-padding-horizontal;
+        padding-left: @control-padding-horizontal + @font-size-sm;
+      }
+    }
+
+    &-submenu-vertical > & {
+      .@{dropdown-prefix-cls}-rtl & {
+        right: 100%;
+        left: 0;
+        margin-right: 4px;
+        margin-left: 0;
+      }
+    }
+  }
+}

node_modules/ng-zorro-antd/dropdown/style/status.less

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+@import (reference) '../../style/themes/index';
+
+@dropdown-prefix-cls: ~'@{ant-prefix}-dropdown';
+
+.@{dropdown-prefix-cls}-menu-item {
+  &&-danger {
+    color: @error-color;
+
+    &:hover {
+      color: @text-color-inverse;
+      background-color: @error-color;
+    }
+  }
+}