fix: Remove resetting of dropdown on init props (#265) 🐛

Keeps dropdown open if updating with new props. Only updates/sets state open if new props cause the dropdown to show (a.k.a `initial`/`always`)

#253 introduced resetting of state for shopDropdown on new props:

Author: ellinge

src/index.js

@@ -78,10 +78,10 @@ class DropdownTreeSelect extends Component {
     if (currentFocusNode) {
       currentFocusNode._focused = true
     }
-    this.setState({
-      showDropdown: /initial|always/.test(showDropdown) || false,
+    this.setState(prevState => ({
+      showDropdown: /initial|always/.test(showDropdown) || prevState.showDropdown === true,
       ...this.treeManager.getTreeAndTags(),
-    })
+    }))
   }
 
   resetSearchState = () => {

src/index.test.js

@@ -168,6 +168,28 @@ test('toggles dropdown', t => {
   t.false(wrapper.state().showDropdown)
 })
 
+test('keeps dropdown open on props update', t => {
+  const { tree } = t.context
+  const wrapper = mount(<DropdownTreeSelect data={tree} />)
+  wrapper.instance().handleClick()
+  t.true(wrapper.state().showDropdown)
+  wrapper.setProps({ data: tree })
+  t.true(wrapper.state().showDropdown)
+})
+
+test('opens dropdown on props update with show intention', t => {
+  const { tree } = t.context
+  const wrapper = mount(<DropdownTreeSelect data={tree} />)
+  t.false(wrapper.state().showDropdown)
+  wrapper.setProps({ data: tree, showDropdown: 'initial' })
+  t.true(wrapper.state().showDropdown)
+  wrapper.instance().handleClick()
+  t.false(wrapper.state().showDropdown)
+  wrapper.setProps({ data: tree, showDropdown: 'always' })
+  wrapper.instance().handleClick()
+  t.true(wrapper.state().showDropdown)
+})
+
 test('sets unique ids on dropdowns', t => {
   const { tree } = t.context
   clientIdGenerator.reset()