From 5240d9989fd0b87e0eb73833e9d4805c10e2e350 Mon Sep 17 00:00:00 2001
From: Nathan Sobo <nathan@github.com>
Date: Mon, 25 Feb 2013 17:15:00 -0700
Subject: [PATCH] Pane emits 'pane:item-removed' events

---
 spec/app/pane-spec.coffee | 7 +++++++
 src/app/pane.coffee       | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/spec/app/pane-spec.coffee b/spec/app/pane-spec.coffee
index 963ce359f..d263cff4b 100644
--- a/spec/app/pane-spec.coffee
+++ b/spec/app/pane-spec.coffee
@@ -99,6 +99,13 @@ describe "Pane", ->
       expect(pane.getItems()).toEqual [editSession1, view2]
       expect(pane.activeItem).toBe editSession1
 
+    it "triggers 'pane:item-removed' with the item and its former index", ->
+      itemRemovedHandler = jasmine.createSpy("itemRemovedHandler")
+      pane.on 'pane:item-removed', itemRemovedHandler
+      pane.removeItem(editSession1)
+      expect(itemRemovedHandler).toHaveBeenCalled()
+      expect(itemRemovedHandler.argsForCall[0][1..2]).toEqual [editSession1, 1]
+
     it "removes the pane when its last item is removed", ->
       pane.removeItem(item) for item in pane.getItems()
       expect(pane.hasParent()).toBeFalsy()
diff --git a/src/app/pane.coffee b/src/app/pane.coffee
index 547160157..eadccaa50 100644
--- a/src/app/pane.coffee
+++ b/src/app/pane.coffee
@@ -94,10 +94,14 @@ class Pane extends View
     false
 
   removeItem: (item) ->
+    index = @items.indexOf(item)
+    return if index == -1
+
     @showNextItem() if item is @activeItem and @items.length > 1
     _.remove(@items, item)
     item.destroy?()
     @cleanupItemView(item)
+    @trigger 'pane:item-removed', [item, index]
     @remove() unless @items.length
 
   itemForPath: (path) ->