Fix for 102120, ability to load tabs in background, r=bryner, sr=hewitt

suite/common/contentAreaClick.js

@@ -152,9 +152,20 @@
     switch (event.button) {                                   
       case 0:                                                         // if left button clicked
         if (event.metaKey || event.ctrlKey) {                         // and meta or ctrl are down
-          openNewWindowWith(href);                                    // open link in new window
+          if (pref && pref.GetBoolPref("browser.tabs.opentabfor.middleclick") && getBrowser && 
-          event.preventBubble();
+            getBrowser() && getBrowser().localName == "tabbrowser") {
-          return true;
+            var t = getBrowser().addTab(href); // open link in new tab
+            if (!event.shiftKey && !pref.GetBoolPref("browser.tabs.loadInBackground"))
+              getBrowser().selectedTab = t;
+            event.preventBubble();
+            return true;
+          }
+          
+          if (pref && pref.GetBoolPref("middlemouse.openNewWindow")) {  
+            openNewWindowWith(href);                                    // open link in new window
+            event.preventBubble();
+            return true;
+          }
         } 
         var saveModifier = true;
         if (pref) {
@@ -177,11 +188,13 @@
         if (pref && pref.GetBoolPref("browser.tabs.opentabfor.middleclick") && getBrowser && 
             getBrowser() && getBrowser().localName == "tabbrowser") {
           var t = getBrowser().addTab(href); // open link in new tab
-          getBrowser().selectedTab = t;
+          if (!event.shiftKey && !pref.GetBoolPref("browser.tabs.loadInBackground"))
+            getBrowser().selectedTab = t;
           event.preventBubble();
           return true;
         }
-        else if (pref && pref.GetBoolPref("middlemouse.openNewWindow")) {  
+        
+        if (pref && pref.GetBoolPref("middlemouse.openNewWindow")) {  
           openNewWindowWith(href);                                    // open link in new window
           event.preventBubble();
           return true;

suite/common/contentAreaUtils.js

@@ -92,17 +92,19 @@
 
   function openNewTabWith(url) {
 
-	urlSecurityCheck(url, document);
+	  urlSecurityCheck(url, document);
     var wintype = document.firstChild.getAttribute('windowtype');
 
     // if and only if the current window is a browser window and it has a document with a character
     // set, then extract the current charset menu setting from the current document and use it to
     // initialize the new browser window...
     if (window && (wintype == "navigator:browser")) {
-		var browser=getBrowser();
+		  var browser=getBrowser();
-		browser.selectedTab = browser.addTab(url);
+		  var t = browser.addTab(url); // open link in new tab
+      if (pref && !pref.GetBoolPref("browser.tabs.loadInBackground"))
+        browser.selectedTab = t;
     }
- 
+
     // Fix new window.    
     newWin.saveFileAndPos = true;
   }