update(components): Add support to create new items inside EditableList

- Adds logic to allow simple item creation
- Adds new onItemCreated callback
- Updates specs

spec/components/editable-list-spec.jsx

@@ -38,6 +38,37 @@ describe('EditableList', ()=> {
     });
   });
 
+  describe('_onCreateInputKeyDown', ()=> {
+    it('calls onItemCreated', ()=> {
+      const onItemCreated = jasmine.createSpy('onItemCreated');
+      const list = makeList(['1', '2'], {initialState: {creatingItem: true}, onItemCreated});
+      const createItem = findRenderedDOMComponentWithClass(list, 'create-item');
+      const input = findRenderedDOMComponentWithTag(createItem, 'input');
+      findDOMNode(input).value = 'New Item';
+
+      Simulate.keyDown(input, {key: 'Enter'});
+
+      expect(onItemCreated).toHaveBeenCalledWith('New Item');
+    });
+  });
+
+  describe('_onCreateItem', ()=> {
+    it('should call prop callback when provided', ()=> {
+      const onCreateItem = jasmine.createSpy('onCreateItem');
+      const list = makeList(['1', '2'], {onCreateItem});
+
+      list._onCreateItem();
+      expect(onCreateItem).toHaveBeenCalled();
+    });
+
+    it('should set state for creating item when no callback provided', ()=> {
+      const list = makeList(['1', '2']);
+      spyOn(list, 'setState');
+      list._onCreateItem();
+      expect(list.setState).toHaveBeenCalledWith({creatingItem: true});
+    });
+  });
+
   describe('_renderItem', ()=> {
     const makeItem = (item, idx, state = {}, handlers = {})=> {
       const list = makeList();
@@ -109,18 +140,26 @@ describe('EditableList', ()=> {
       const innerList = findDOMNode(
         findRenderedDOMComponentWithClass(list, 'items-wrapper')
       );
+      expect(()=> {
+        findRenderedDOMComponentWithClass(list, 'create-item');
+      }).toThrow();
+
       expect(innerList.childNodes.length).toEqual(3);
       items.forEach((item, idx)=> expect(innerList.childNodes[idx].textContent).toEqual(item));
     });
 
+    it('renders create input as an item when creating', ()=> {
+      const items = ['1', '2', '3'];
+      const list = makeList(items, {initialState: {creatingItem: true}});
+      const createItem = findRenderedDOMComponentWithClass(list, 'create-item');
+      expect(createItem).toBeDefined();
+    });
+
     it('renders add button', ()=> {
-      const onCreateItem = jasmine.createSpy('onCreateItem');
+      const list = makeList();
-      const list = makeList([], {onCreateItem});
       const button = scryRenderedDOMComponentsWithClass(list, 'btn-editable-list')[0];
 
-      Simulate.click(button);
+      expect(findDOMNode(button).textContent).toEqual('+');
-
-      expect(onCreateItem).toHaveBeenCalled();
     });
 
     it('renders delete button', ()=> {
@@ -130,6 +169,7 @@ describe('EditableList', ()=> {
 
       Simulate.click(button);
 
+      expect(findDOMNode(button).textContent).toEqual('—');
       expect(onDeleteItem).toHaveBeenCalledWith('2', 1);
     });
   });

src/components/editable-list.jsx

@@ -16,15 +16,16 @@ class EditableList extends Component {
     onDeleteItem: PropTypes.func,
     onItemEdited: PropTypes.func,
     onItemSelected: PropTypes.func,
+    onItemCreated: PropTypes.func,
     initialState: PropTypes.object,
   }
 
   static defaultProps = {
     children: [],
-    onCreateItem: ()=> {},
     onDeleteItem: ()=> {},
     onItemEdited: ()=> {},
     onItemSelected: ()=> {},
+    onItemCreated: ()=> {},
   }
 
   constructor(props) {
@@ -34,6 +35,7 @@ class EditableList extends Component {
     this.state = props.initialState || {
       editing: null,
       selected: null,
+      creatingItem: false,
     };
   }
 
@@ -54,6 +56,13 @@ class EditableList extends Component {
     }
   }
 
+  _onCreateInputKeyDown = (event)=> {
+    if (_.includes(['Enter', 'Return'], event.key)) {
+      this.setState({creatingItem: false});
+      this.props.onItemCreated(event.target.value);
+    }
+  }
+
   _onItemClick = (event, item, idx)=> {
     this._selectItem(item, idx);
   }
@@ -83,7 +92,11 @@ class EditableList extends Component {
   }
 
   _onCreateItem = ()=> {
-    this.props.onCreateItem();
+    if (this.props.onCreateItem) {
+      this.props.onCreateItem();
+    } else {
+      this.setState({creatingItem: true});
+    }
   }
 
   _onDeleteItem = ()=> {
@@ -137,7 +150,23 @@ class EditableList extends Component {
     );
   }
 
+  _renderCreateItem = (onCreateInputKeyDown = this._onCreateInputKeyDown)=> {
+    return (
+      <div className="create-item">
+        <input
+          autoFocus
+          type="text"
+          onKeyDown={onCreateInputKeyDown} />
+      </div>
+    );
+  }
+
   render() {
+    let items = this._items.map((item, idx)=> this._renderItem(item, idx));
+    if (this.state.creatingItem === true) {
+      items = items.concat(this._renderCreateItem());
+    }
+
     return (
       <div className={`nylas-editable-list ${this.props.className}`}>
         <div
@@ -145,7 +174,7 @@ class EditableList extends Component {
           tabIndex="1"
           onBlur={this._onListBlur}
           onKeyDown={this._onListKeyDown}>
-          {this._items.map((item, idx)=> this._renderItem(item, idx))}
+          {items}
         </div>
         <div className="buttons-wrapper">
           <button className="btn btn-small btn-editable-list" onClick={this._onCreateItem}>+</button>

static/components/editable-list.less

@@ -31,6 +31,16 @@
         color: @text-color-inverse-very-subtle;
       }
     }
+
+    .create-item {
+      padding: @padding-small-vertical @padding-small-horizontal;
+      border-top: 1px solid @border-color-divider;
+      input {
+        border: none;
+        padding: 0;
+        font-size: inherit;
+      }
+    }
   }
 
   .buttons-wrapper {