From f8b415f9a989b4363adc4ba79c190db9fb0d38f0 Mon Sep 17 00:00:00 2001
From: Gary Thomas <gary.thomas@appfolio.com>
Date: Wed, 27 Jan 2021 15:27:02 -0800
Subject: [PATCH] feat(Dropdown): Add backwards compatible left & right

Maps to start & end
---
 src/Dropdown.js     |  6 ++++--
 src/DropdownMenu.js | 10 +++++++---
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/Dropdown.js b/src/Dropdown.js
index 113ab291e..9da8d94d9 100644
--- a/src/Dropdown.js
+++ b/src/Dropdown.js
@@ -11,7 +11,7 @@ import { mapToCssModules, omit, keyCodes, tagPropType } from './utils';
 const propTypes = {
   a11y: PropTypes.bool,
   disabled: PropTypes.bool,
-  direction: PropTypes.oneOf(['up', 'down', 'start', 'end']),
+  direction: PropTypes.oneOf(['up', 'down', 'start', 'end', 'left', 'right']),
   group: PropTypes.bool,
   isOpen: PropTypes.bool,
   nav: PropTypes.bool,
@@ -269,13 +269,15 @@ class Dropdown extends React.Component {
 
     const classes = mapToCssModules(classNames(
       className,
-      direction !== 'down' && `drop${direction}`,
       nav && active ? 'active' : false,
       setActiveFromChild && subItemIsActive ? 'active' : false,
       {
         'btn-group': group,
         [`btn-group-${size}`]: !!size,
         dropdown: !group,
+        dropup: direction === 'up',
+        dropstart: direction === 'start' || direction === 'left',
+        dropend: direction === 'end' || direction === 'right',
         show: isOpen,
         'nav-item': nav
       }
diff --git a/src/DropdownMenu.js b/src/DropdownMenu.js
index e46df8852..18f47292d 100644
--- a/src/DropdownMenu.js
+++ b/src/DropdownMenu.js
@@ -4,7 +4,7 @@ import ReactDOM from 'react-dom';
 import classNames from 'classnames';
 import { Popper } from 'react-popper';
 import { DropdownContext } from './DropdownContext';
-import { mapToCssModules, tagPropType, targetPropType, getTarget } from './utils';
+import { mapToCssModules, tagPropType, targetPropType, getTarget, deprecated } from './utils';
 
 const propTypes = {
   tag: tagPropType,
@@ -18,6 +18,7 @@ const propTypes = {
   persist: PropTypes.bool,
   strategy: PropTypes.string,
   container: targetPropType,
+  right: deprecated(PropTypes.bool, 'Please use "end" instead.'),
 };
 
 const defaultProps = {
@@ -28,6 +29,8 @@ const defaultProps = {
 
 const directionPositionMap = {
   up: 'top',
+  left: 'left',
+  right: 'right',
   start: 'left',
   end: 'right',
   down: 'bottom',
@@ -48,6 +51,7 @@ class DropdownMenu extends React.Component {
       cssModule,
       dark,
       end,
+      right,
       tag,
       flip,
       modifiers,
@@ -62,7 +66,7 @@ class DropdownMenu extends React.Component {
       'dropdown-menu',
       {
         'dropdown-menu-dark': dark,
-        'dropdown-menu-end': end,
+        'dropdown-menu-end': end || right,
         show: this.context.isOpen,
       }
     ), cssModule);
@@ -72,7 +76,7 @@ class DropdownMenu extends React.Component {
     if (persist || (this.context.isOpen && !this.context.inNavbar)) {
 
       const position1 = directionPositionMap[this.context.direction] || 'bottom';
-      const position2 = end ? 'end' : 'start';
+      const position2 = (end || right) ? 'end' : 'start';
       const poperPlacement = `${position1}-${position2}`;
       const poperModifiers = [
         ...modifiers,