Add doubleClick support to slot selection

examples/demos/selectable.js

@@ -19,7 +19,8 @@ let Selectable = React.createClass({
           onSelectEvent={event => alert(event.title)}
           onSelectSlot={(slotInfo) => alert(
             `selected slot: \n\nstart ${slotInfo.start.toLocaleString()} ` +
-            `\nend: ${slotInfo.end.toLocaleString()}`
+            `\nend: ${slotInfo.end.toLocaleString()}` +
+            `\naction: ${slotInfo.action}`
           )}
         />
       </div>

src/BackgroundCells.js

@@ -91,6 +91,27 @@ class BackgroundCells extends React.Component {
       longPressThreshold: this.props.longPressThreshold,
     })
 
+    let selectorClicksHandler = (point, actionType) => {
+      if (!isEvent(findDOMNode(this), point)) {
+        let rowBox = getBoundsForNode(node)
+        let { range, rtl } = this.props;
+
+        if (pointInBox(rowBox, point)) {
+          let width = slotWidth(getBoundsForNode(node),  range.length);
+          let currentCell = getCellAtX(rowBox, point.x, width, rtl, range.length);
+
+          this._selectSlot({
+            startIdx: currentCell,
+            endIdx: currentCell,
+            action: actionType,
+          })
+        }
+      }
+
+      this._initial = {}
+      this.setState({ selecting: false })
+    };
+
     selector.on('selecting', box => {
       let { range, rtl } = this.props;
 
@@ -125,26 +146,10 @@ class BackgroundCells extends React.Component {
     })
 
     selector
-      .on('click', point => {
-        if (!isEvent(findDOMNode(this), point)) {
-          let rowBox = getBoundsForNode(node)
-          let { range, rtl } = this.props;
-
-          if (pointInBox(rowBox, point)) {
-            let width = slotWidth(getBoundsForNode(node),  range.length);
-            let currentCell = getCellAtX(rowBox, point.x, width, rtl, range.length);
-
-            this._selectSlot({
-              startIdx: currentCell,
-              endIdx: currentCell,
-              action: 'click',
-            })
-          }
-        }
+      .on('click', point => selectorClicksHandler(point, 'click'))
 
-        this._initial = {}
-        this.setState({ selecting: false })
-      })
+    selector
+      .on('doubleClick', point => selectorClicksHandler(point, 'doubleClick'))
 
     selector
       .on('select', () => {

src/Calendar.js

@@ -104,7 +104,7 @@ class Calendar extends React.Component {
      *     start: Date,
      *     end: Date,
      *     slots: Array<Date>,
-     *     action: "select" | "click"
+     *     action: "select" | "click" | "doubleClick"
      *   }
      * ) => any
      * ```

src/DayColumn.js

@@ -295,6 +295,13 @@ class DayColumn extends React.Component {
       }
     }
 
+    let selectorClicksHandler = (box, actionType) => {
+      if (!isEvent(findDOMNode(this), box))
+        this._selectSlot({ ...selectionState(box), action: actionType })
+
+      this.setState({ selecting: false })
+    }
+
     selector.on('selecting', maybeSelect)
     selector.on('selectStart', maybeSelect)
 
@@ -305,12 +312,10 @@ class DayColumn extends React.Component {
     })
 
     selector
-      .on('click', (box) => {
-        if (!isEvent(findDOMNode(this), box))
-          this._selectSlot({ ...selectionState(box), action: 'click' })
+      .on('click', box => selectorClicksHandler(box, 'click'))
 
-        this.setState({ selecting: false })
-      })
+    selector
+      .on('doubleClick', (box) => selectorClicksHandler(box, 'doubleClick'))
 
     selector
       .on('select', () => {

src/Selection.js

@@ -34,6 +34,7 @@ function getEventCoordinates(e) {
 }
 
 const clickTolerance = 5;
+const clickInterval = 250;
 
 class Selection {
 
@@ -224,7 +225,7 @@ class Selection {
   }
 
   _handleTerminatingEvent(e) {
-    const { pageX, pageY, clientX, clientY } = getEventCoordinates(e);
+    const { pageX, pageY } = getEventCoordinates(e);
 
     this.selecting = false;
 
@@ -243,17 +244,42 @@ class Selection {
       return this.emit('reset')
     }
 
-    if(click && inRoot)
-      return this.emit('click', {
+    if(click && inRoot) {
+      return this._handleClickEvent(e);
+    }
+
+    // User drag-clicked in the Selectable area
+    if(!click)
+      return this.emit('select', bounds)
+  }
+
+  _handleClickEvent(e) {
+    const { pageX, pageY, clientX, clientY } = getEventCoordinates(e);
+    const now = new Date().getTime();
+
+    if (this._lastClickData && now - this._lastClickData.timestamp < clickInterval) {
+      // Double click event
+      this._lastClickData = {
+        timestamp: now,
+        isDblClick: true,
+      };
+      return this.emit('doubleClick', {
         x: pageX,
         y: pageY,
         clientX: clientX,
         clientY: clientY,
       })
+    }
 
-    // User drag-clicked in the Selectable area
-    if(!click)
-      return this.emit('select', bounds)
+    this._lastClickData = {
+      timestamp: now,
+    };
+    return this.emit('click', {
+      x: pageX,
+      y: pageY,
+      clientX: clientX,
+      clientY: clientY,
+    });
   }
 
   _handleMoveEvent(e) {