From cbf19291b25d6b370c01204e6fa7666371315767 Mon Sep 17 00:00:00 2001
From: phasefx <phasefx@dcc99617-32d9-48b4-a31d-7c20da2025e4>
Date: Tue, 20 Apr 2010 15:19:18 +0000
Subject: [PATCH] reduce proliferation of nsISound instances

git-svn-id: svn://svn.open-ils.org/ILS/trunk@16280 dcc99617-32d9-48b4-a31d-7c20da2025e4
---
 Open-ILS/xul/staff_client/chrome/content/main/menu.js  |  2 ++
 Open-ILS/xul/staff_client/chrome/content/util/sound.js | 13 ++++++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/Open-ILS/xul/staff_client/chrome/content/main/menu.js b/Open-ILS/xul/staff_client/chrome/content/main/menu.js
index e629ae747..a860fe1d8 100644
--- a/Open-ILS/xul/staff_client/chrome/content/main/menu.js
+++ b/Open-ILS/xul/staff_client/chrome/content/main/menu.js
@@ -10,6 +10,7 @@ main.menu = function () {
     offlineStrings = document.getElementById('offlineStrings');
     JSAN.use('util.error'); this.error = new util.error();
     JSAN.use('util.window'); this.window = new util.window();
+    JSAN.use('util.sound'); this.sound = new util.sound();
 
     this.w = window;
     var x = document.getElementById('network_progress');
@@ -1481,6 +1482,7 @@ main.menu.prototype = {
             if (e) { e.setAttribute('label',text); }
         };
         content_params.chrome_xulG = xulG;
+        content_params._sound = xulG._sound;
         if (params && params.tab_name) content_params.set_tab_name( params.tab_name );
         
         var frame;
diff --git a/Open-ILS/xul/staff_client/chrome/content/util/sound.js b/Open-ILS/xul/staff_client/chrome/content/util/sound.js
index 0b1bb9ec6..40ef8bb89 100644
--- a/Open-ILS/xul/staff_client/chrome/content/util/sound.js
+++ b/Open-ILS/xul/staff_client/chrome/content/util/sound.js
@@ -4,17 +4,24 @@ if (typeof util == 'undefined') util = {};
 util.sound = function () {
 
     try {
+
+        /* We're going to turn this guy into a singleton, at least for a given window, and look for it in xulG */
+        if (! window.xulG) { window.xulG = {}; }
+        if (window.xulG._sound) { return window.xulG._sound; }
+
         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
         var SOUNDContractID = "@mozilla.org/sound;1";
         var SOUNDIID        = Components.interfaces.nsISound;
         this.SOUND          = Components.classes[SOUNDContractID].createInstance(SOUNDIID);
         this.SOUND.init(); // not necessary, but helps avoid delays?
 
+        window.xulG._sound = this;
+        return this;
+
     } catch(E) {
-        dump('util.sound constructor: ' + E + '\n');
+        dump('error in util.sound constructor: ' + E + '\n');
+        return this;
     }
-
-    return this;
 };
 
 util.sound.prototype = {
-- 
2.11.0