Fix for http://bugzilla.mozilla.org/show_bug.cgi?id=84882. Add a entry, windows

only, the the advanced prefs panel. This is not a pref, but UI that has the
following semantics:

when the panel loads, if there is a shortcut in the windows startup folder for
turbo mode, the checkbox in the UI is set. Otherwise, it is clear,

when the user hits OK, if the checkbox is not set, the shortcut is removed, if
necessary. Otherwise, if the checkbox is set, the shortcut is added, if necessary.

r=ssu, sr=mscott, a=asa

suite/common/pref/pref-advanced.xul

@@ -33,11 +33,13 @@
   <script type="application/x-javascript">
   <![CDATA[
     var panel = "chrome://communicator/content/pref/pref-advanced.xul";
-    var _elementIDs = ["advancedJavaAllow", "javascriptEnabled", "advancedMailFTP", "advancedMailFTPAddress"];
+    var _elementIDs = ["advancedJavaAllow", "javascriptEnabled", "advancedMailFTP", "advancedMailFTPAddress",
+		"enableTurbo"];
     
     function Startup()
     {
       ftpCheck();
+	  turboCheck();
     }   
     
     function ftpCheck()
@@ -46,6 +48,103 @@
       var field = document.getElementById("advancedMailFTPAddress");
       field.disabled = !checked;
     }
+
+	/* 
+	 * Name: turboCheck()
+	 * 
+	 * Arguments: none
+	 *
+	 * Description: This function is called when the root advanced prefs panel
+	 * is loaded. The turbo mode setting is not exactly a preference -- setting
+	 * the checkbox should (on leaving the prefs with an "Ok") result in a call
+	 * to the backend to do the necessary win32 registry twiddling needed for
+	 * turbo mode to go into affect. Clearing it should undo this work. We need
+	 * to call the backend to determine if turbo mode is enabled (since we are 
+	 * required to check for it in a non-trivial way) and then explicitly set the
+	 * checkbox here based on what we find. Finally, we have to hide the checkbox
+	 * (and the titled box that frames it) if we are not executing on a Win32 
+	 * platform.
+	 *
+	 * Return Value: void
+	 *
+	 * Original Code: syd@netscape.com 6/8/2001
+	 *
+	*/
+
+    function turboCheck()
+    {
+      var aframe = document.getElementById("perfSettings");
+      var abox = document.getElementById("perfLabel");
+      var alabel = document.getElementById("perfBox");
+      var acheckbox = document.getElementById("enableTurbo");
+  	  if ( navigator.platform != "Win32" ) {
+		aframe.setAttribute( "style", "visibility: hidden" );
+		return;
+	  }
+	  else 
+		aframe.setAttribute( "style", "visibility: visible" );
+
+	  /* find out what the setting should be and reflect it in the UI */
+
+	  try {
+		hooks = Components.classes["@mozilla.org/winhooks;1"];
+		if ( hooks ) {
+			hooks = hooks.getService(Components.interfaces.nsIWindowsHooks);
+		}
+		if ( hooks ) {
+			var isEnabled = hooks.isStartupTurboEnabled();
+			if ( isEnabled == true ) {
+				acheckbox.setAttribute( "checked", true );
+			}
+			else {
+				acheckbox.setAttribute( "checked", false );
+			}
+		}
+	  } catch( ex ) {
+	  }
+
+	  parent.hPrefWindow.registerOKCallbackFunc( saveTurboSetting );
+    }
+
+	/* 
+	 * Name: saveTurboSetting()
+	 * 
+	 * Arguments: none
+	 *
+	 * Description: This function is called when the user hits the OK button in
+	 * the preferences panel. The function determines what the turbo "preference" 
+	 * setting is and performs the appropriate action to enable or disable turbo mode.
+	 *
+	 * Return Value: void
+	 *
+	 * Original Code: syd@netscape.com 6/9/2001
+	 *
+	*/
+
+	function saveTurboSetting()
+	{
+  	  if ( navigator.platform != "Win32" ) {
+		return;   
+	  }
+
+      var acheckbox = document.getElementById("enableTurbo");
+	  try {
+		hooks = Components.classes["@mozilla.org/winhooks;1"];
+		if ( hooks ) {
+			hooks = hooks.getService(Components.interfaces.nsIWindowsHooks);
+		}
+		if ( hooks ) {
+			var isEnabled = acheckbox.checked;
+			if ( isEnabled == true ) {
+				hooks.startupTurboEnable();
+			}
+			else {
+				hooks.startupTurboDisable();
+			}
+		}
+	  } catch( ex ) {
+	  }
+	}
     
   ]]>
   </script>
@@ -80,6 +179,13 @@
     </hbox>
     <separator/>
   </titledbox>
+  <titledbox orient="vertical" id="perfSettings">
+   <label id="perfLabel" value="&perfTitle.label;"/>
+    <vbox id="perfBox" autostretch="never">
+      <checkbox id="enableTurbo" label="&enableTurbo.label;" accesskey="&enableTurboCheck.accesskey;"/>
+	</vbox>
+   </titledbox>
+  
 </window>
 
 

suite/locales/en-US/chrome/common/pref/pref-advanced.dtd

@@ -7,7 +7,6 @@
 <!ENTITY autoLoadImgCheck.label       "Automatically load images"> 
 <!ENTITY autoLoadImgCheck.accesskey   "i">
 
-<!--LOCALIZATION NOTE (enbJavaCheck.label): 'Java' should never be translated -->
 <!ENTITY enbJavaCheck.label           "Enable Java">
 <!ENTITY enbJavaCheck.accesskey       "j">
 
@@ -22,3 +21,8 @@
 <!ENTITY imageBlocking.accesskey      "b">
 
 <!ENTITY description.label            "Checked items are automatically enabled when you visit web pages that use them. If you uncheck an item, pages may load faster but some functionality will be limited.">
+
+<!ENTITY perfTitle.label              "Enable features that affect performance">
+<!ENTITY enableTurbo.label            "Enable Quick Launch (reboot required)">
+<!ENTITY enableTurboCheck.accesskey   "t">
+