[polari/wip/fmuellner/misc-cleanups: 7/8] roomStack: Store rooms in a Map

[Florian Müllner <fmuellner src gnome org>]

commit 58bdf21cb3476c1ae1ae59375488ade8d97ed09a
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Jul 18 21:09:09 2016 +0200

    roomStack: Store rooms in a Map
    
    With the availability of the ECMA6 Map class in gjs, it's time to
    phase out the old pattern of using objects as hash tables ...
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769582

 src/roomStack.js |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/src/roomStack.js b/src/roomStack.js
index 80d161d..521dd80 100644
--- a/src/roomStack.js
+++ b/src/roomStack.js
@@ -24,7 +24,7 @@ const RoomStack = new Lang.Class({
         this.parent(params);
 
         this._sizeGroup = new Gtk.SizeGroup({ mode: Gtk.SizeGroupMode.VERTICAL });
-        this._rooms = {};
+        this._rooms = new Map();
 
         this._roomManager = ChatroomManager.getDefault();
 
@@ -52,7 +52,7 @@ const RoomStack = new Lang.Class({
     },
 
     _addView: function(id, view) {
-        this._rooms[id] = view;
+        this._rooms.set(id, view);
         this.add_named(view, id);
     },
 
@@ -61,8 +61,8 @@ const RoomStack = new Lang.Class({
     },
 
     _roomRemoved: function(roomManager, room) {
-        this._rooms[room.id].destroy();
-        delete this._rooms[room.id];
+        this._rooms.get(room.id).destroy();
+        this._rooms.delete(room.id);
     },
 
     _activeRoomChanged: function(manager, room) {
@@ -74,7 +74,7 @@ const RoomStack = new Lang.Class({
         if (!room)
             return;
         let sensitive = room && room.channel;
-        this._rooms[room.id].inputSensitive = sensitive;
+        this._rooms.get(room.id).inputSensitive = sensitive;
     }
 });