auto position mode when contextMenu

components/dropdown/demo/context-menu.md

@@ -25,7 +25,7 @@ const menu = (
 );
 
 ReactDOM.render(
-  <Dropdown overlay={menu} trigger={['contextMenu']} alignPoint>
+  <Dropdown overlay={menu} trigger={['contextMenu']}>
     <span style={{ userSelect: 'none' }}>Right Click on Me</span>
   </Dropdown>
 , mountNode);

components/dropdown/dropdown.tsx

@@ -68,11 +68,19 @@ export default class Dropdown extends React.Component<DropDownProps, any> {
       selectable,
       focusable,
     });
+
+    const triggerActions = disabled ? [] : trigger;
+    let alignPoint;
+    if (triggerActions && triggerActions.indexOf('contextMenu') !== -1) {
+      alignPoint = true;
+    }
+
     return (
       <RcDropdown
+        alignPoint={alignPoint}
         {...this.props}
         transitionName={this.getTransitionName()}
-        trigger={disabled ? [] : trigger}
+        trigger={triggerActions}
         overlay={fixedModeOverlay}
       >
         {dropdownTrigger}

components/dropdown/index.en-US.md

@@ -23,7 +23,6 @@ If there are too many operations to display, you can wrap them in a `Dropdown`.
 | trigger | the trigger mode which executes the drop-down action | Array<`click`\|`hover`\|`contextMenu`> | `['hover']` |
 | visible | whether the dropdown menu is visible | boolean | - |
 | onVisibleChange | a callback function takes an argument: `visible`, is executed when the visible state is changed | Function(visible) | - |
-| alignPoint | whether the dropdown menu follow the mouse position | bool | - |
 
 You should use [Menu](/components/menu/) as `overlay`. The menu items and dividers are also available by using `Menu.Item` and `Menu.Divider`.
 

components/dropdown/index.zh-CN.md

@@ -24,7 +24,6 @@ title: Dropdown
 | trigger | 触发下拉的行为 | Array<`click`\|`hover`\|`contextMenu`> | `['hover']` |
 | visible | 菜单是否显示 | boolean | - |
 | onVisibleChange | 菜单显示状态改变时调用，参数为 visible | Function(visible) | - |
-| alignPoint | 菜单是否跟随鼠标位置 | bool | - |
 
 `overlay` 菜单使用 [Menu](/components/menu/)，还包括菜单项 `Menu.Item`，分割线 `Menu.Divider`。