feat: Menu support expandIcon (#27565)

* style: optimize menu expand icon color

close #20035

* feat: 🆕 support Menu expandIcon

* revert arrow color

components/menu/index.en-US.md

@@ -31,6 +31,7 @@ More layouts with navigation: [Layout](/components/layout).
 | --- | --- | --- | --- | --- |
 | defaultOpenKeys | Array with the keys of default opened sub menus | string\[] | - |  |
 | defaultSelectedKeys | Array with the keys of default selected menu items | string\[] | - |  |
+| expandIcon | custom expand icon of submenu | ReactNode \| `(props: SubMenuProps & { isSubMenu: boolean }) => ReactNode` | - | 4.9.0 |
 | forceSubMenuRender | Render submenu into DOM before it becomes visible | boolean | false |  |
 | inlineCollapsed | Specifies the collapsed status when menu is inline mode | boolean | - |  |
 | inlineIndent | Indent (in pixels) of inline menu items on each level | number | 24 |  |

components/menu/index.tsx

@@ -7,6 +7,7 @@ import { ConfigConsumer, ConfigConsumerProps } from '../config-provider';
 import devWarning from '../_util/devWarning';
 import { SiderContext, SiderContextProps } from '../layout/Sider';
 import collapseMotion from '../_util/motion';
+import { cloneElement } from '../_util/reactNode';
 import MenuContext, { MenuTheme } from './MenuContext';
 
 export { MenuItemGroupProps } from 'rc-menu';
@@ -53,7 +54,7 @@ class InternalMenu extends React.Component<InternalMenuProps> {
   }
 
   renderMenu = ({ getPopupContainer, getPrefixCls, direction }: ConfigConsumerProps) => {
-    const { prefixCls: customizePrefixCls, className, theme } = this.props;
+    const { prefixCls: customizePrefixCls, className, theme, expandIcon } = this.props;
     const defaultMotions = {
       horizontal: { motionName: 'slide-up' },
       inline: collapseMotion,
@@ -84,6 +85,9 @@ class InternalMenu extends React.Component<InternalMenuProps> {
           prefixCls={prefixCls}
           direction={direction}
           defaultMotions={defaultMotions}
+          expandIcon={cloneElement(expandIcon, {
+            className: `${prefixCls}-submenu-expand-icon`,
+          })}
         />
       </MenuContext.Provider>
     );

components/menu/index.zh-CN.md

@@ -32,6 +32,7 @@ cover: https://gw.alipayobjects.com/zos/alicdn/3XZcjGpvK/Menu.svg
 | --- | --- | --- | --- | --- |
 | defaultOpenKeys | 初始展开的 SubMenu 菜单项 key 数组 | string\[] | - |  |
 | defaultSelectedKeys | 初始选中的菜单项 key 数组 | string\[] | - |  |
+| expandIcon | 自定义展开图标 | ReactNode \| `(props: SubMenuProps & { isSubMenu: boolean }) => ReactNode` | - | 4.9.0 |
 | forceSubMenuRender | 在子菜单展示之前就渲染进 DOM | boolean | false |  |
 | inlineCollapsed | inline 时菜单是否收起状态 | boolean | - |  |
 | inlineIndent | inline 模式的菜单缩进宽度 | number | 24 |  |

components/menu/style/index.less

@@ -42,12 +42,12 @@
   }
 
   &-horizontal &-submenu {
-    transition: border-color 0.3s @ease-in-out, background 0.3s @ease-in-out;
+    transition: border-color 0.3s ease-in-out, background 0.3s ease-in-out;
   }
   &-submenu,
   &-submenu-inline {
-    transition: border-color 0.3s @ease-in-out, background 0.3s @ease-in-out,
-      padding 0.15s @ease-in-out;
+    transition: border-color 0.3s ease-in-out, background 0.3s ease-in-out,
+      padding 0.15s ease-in-out;
   }
 
   &-submenu-selected {
@@ -61,7 +61,7 @@
 
   &-submenu &-sub {
     cursor: initial;
-    transition: background 0.3s @ease-in-out, padding 0.3s @ease-in-out;
+    transition: background 0.3s ease-in-out, padding 0.3s ease-in-out;
   }
 
   &-item a {
@@ -173,9 +173,9 @@
 
   &-horizontal &-item,
   &-horizontal &-submenu-title {
-    transition: color 0.3s @ease-in-out, border-color 0.3s @ease-in-out,
-      background 0.3s @ease-in-out;
+    transition: color 0.3s ease-in-out, border-color 0.3s ease-in-out, background 0.3s ease-in-out;
   }
+
   &-item,
   &-submenu-title {
     position: relative;
@@ -184,16 +184,16 @@
     padding: @menu-item-padding;
     white-space: nowrap;
     cursor: pointer;
-    transition: color 0.3s @ease-in-out, border-color 0.3s @ease-in-out,
-      background 0.3s @ease-in-out, padding 0.15s @ease-in-out;
+    transition: color 0.3s ease-in-out, border-color 0.3s ease-in-out, background 0.3s ease-in-out,
+      padding 0.15s ease-in-out;
     .@{iconfont-css-prefix} {
       min-width: 14px;
       margin-right: @menu-icon-margin-right;
       font-size: @menu-icon-size;
-      transition: font-size 0.15s @ease-out, margin 0.3s @ease-in-out;
+      transition: font-size 0.15s ease-out, margin 0.3s ease-in-out, color 0.3s ease-in-out;
       + span {
         opacity: 1;
-        transition: opacity 0.3s @ease-in-out, width 0.3s @ease-in-out;
+        transition: opacity 0.3s ease-in-out, width 0.3s ease-in-out, color 0.3s ease-in-out;
       }
     }
 
@@ -245,7 +245,7 @@
       background-color: @menu-bg;
       border-radius: @border-radius-base;
       &-submenu-title::after {
-        transition: transform 0.3s @ease-in-out;
+        transition: transform 0.3s ease-in-out;
       }
     }
 
@@ -253,78 +253,62 @@
       background-color: @menu-popup-bg;
     }
 
-    &-vertical,
-    &-vertical-left,
-    &-vertical-right,
-    &-inline {
-      > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow {
+    &-expand-icon,
+    &-arrow {
+      position: absolute;
+      top: 50%;
+      right: 16px;
+      width: 10px;
+      color: @menu-item-color;
+      transform: translateY(-50%);
+      transition: transform 0.3s ease-in-out;
+    }
+
+    &-arrow {
+      &::before,
+      &::after {
         position: absolute;
-        top: 50%;
-        right: 16px;
-        width: 10px;
-        transition: transform 0.3s @ease-in-out;
-
-        &::before,
-        &::after {
-          position: absolute;
-          width: 6px;
-          height: 1.5px;
-          // background + background-image to makes before & after cross have same color.
-          // ref: https://github.com/ant-design/ant-design/issues/15910
-          background-image: linear-gradient(to right, @menu-item-color, @menu-item-color);
-          border-radius: 2px;
-          transition: background 0.3s @ease-in-out, transform 0.3s @ease-in-out,
-            top 0.3s @ease-in-out;
-          content: '';
-        }
-        &::before {
-          transform: rotate(45deg) translateY(-2px);
-        }
-        &::after {
-          transform: rotate(-45deg) translateY(2px);
-        }
+        width: 6px;
+        height: 1.5px;
+        background-color: currentColor;
+        border-radius: 2px;
+        transition: background 0.3s ease-in-out, transform 0.3s ease-in-out, top 0.3s ease-in-out,
+          color 0.3s ease-in-out;
+        content: '';
       }
-      > .@{menu-prefix-cls}-submenu-title:hover .@{menu-prefix-cls}-submenu-arrow {
-        &::after,
-        &::before {
-          background: linear-gradient(to right, @menu-highlight-color, @menu-highlight-color);
-        }
-      }
-    }
-
-    &-vertical,
-    &-vertical-left,
-    &-vertical-right {
-      > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow {
-        &::before {
-          transform: rotate(45deg) translateY(-2px);
-        }
-        &::after {
-          transform: rotate(-45deg) translateY(2px);
-        }
-      }
-    }
-
-    &-inline > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow {
       &::before {
-        transform: rotate(-45deg) translateX(2px);
+        transform: rotate(45deg) translateY(-2.5px);
       }
       &::after {
-        transform: rotate(45deg) translateX(-2px);
+        transform: rotate(-45deg) translateY(2.5px);
       }
     }
 
-    &-open {
-      &.@{menu-prefix-cls}-submenu-inline
-        > .@{menu-prefix-cls}-submenu-title
-        .@{menu-prefix-cls}-submenu-arrow {
-        transform: translateY(-2px);
-        &::after {
-          transform: rotate(-45deg) translateX(-2px);
-        }
-        &::before {
-          transform: rotate(45deg) translateX(2px);
-        }
+    &:hover &-expand-icon,
+    &:hover &-arrow {
+      color: @menu-highlight-color;
+    }
+
+    &-inline &-arrow {
+      &::before {
+        transform: rotate(-45deg) translateX(2.5px);
+      }
+      &::after {
+        transform: rotate(45deg) translateX(-2.5px);
+      }
+    }
+
+    &-horizontal &-arrow {
+      display: none;
+    }
+
+    &-open&-inline &-arrow {
+      transform: translateY(-2px);
+      &::after {
+        transform: rotate(-45deg) translateX(-2.5px);
+      }
+      &::before {
+        transform: rotate(45deg) translateX(2.5px);
       }
     }
   }
@@ -411,7 +395,7 @@
         border-right: @menu-item-active-border-width solid @menu-highlight-color;
         transform: scaleY(0.0001);
         opacity: 0;
-        transition: transform 0.15s @ease-out, opacity 0.15s @ease-out;
+        transition: transform 0.15s ease-out, opacity 0.15s ease-out;
         content: '';
       }
     }
@@ -456,7 +440,7 @@
       &::after {
         transform: scaleY(1);
         opacity: 1;
-        transition: transform 0.15s @ease-in-out, opacity 0.15s @ease-in-out;
+        transition: transform 0.15s ease-in-out, opacity 0.15s ease-in-out;
       }
     }