Bug 489569: Add-on installation confirmation dialog [r=mark.finkle]

mobile/chrome/content/extensions.js

@@ -353,8 +353,6 @@ var ExtensionsView = {
     if (!this._isXPInstallEnabled())
       return;
 
-    aItem.setAttribute("opType", "needs-install");
-
     if (aItem.hasAttribute("eula")) {
       var eula = {
         name: aSelectedItem.getAttribute("name"),
@@ -633,6 +631,10 @@ XPInstallDownloadManager.prototype = {
     if (!element)
       return;
 
+    let opType = element.getAttribute("opType");
+    if (!opType) {
+      element.setAttribute("opType", "needs-install");
+    }
     var progress = Math.round((aValue / aMaxValue) * 100);
     element.setAttribute("progress", progress);
   },

mobile/components/xpiDialogService.js

@@ -52,8 +52,21 @@ XPInstallDialogService.prototype = {
   QueryInterface: XPCOMUtils.generateQI([Ci.nsIXPIDialogService, Ci.nsIXPIProgressDialog]),
 
   confirmInstall: function(aParent, aPackages, aCount) {
-    // Return true to get the install started
+    // first check if the extensions panel is open : fast path to return true
+    let wm = Cc["@mozilla.org/appshell/window-mediator;1"].getService(Ci.nsIWindowMediator);
+    let browser = wm.getMostRecentWindow("navigator:browser");
+    if (browser.ExtensionsView.visible)
       return true;
+    
+    let bundleService = Cc["@mozilla.org/intl/stringbundle;1"].getService(Ci.nsIStringBundleService);
+    let bundle = bundleService.createBundle("chrome://browser/locale/browser.properties");
+    let prompt = Cc["@mozilla.org/embedcomp/prompt-service;1"].getService(Ci.nsIPromptService);
+
+    let flags = prompt.BUTTON_POS_0 * prompt.BUTTON_TITLE_IS_STRING + prompt.BUTTON_POS_1 * prompt.BUTTON_TITLE_CANCEL;
+    let title = bundle.GetStringFromName("addonsConfirmInstall.title");
+    let button = bundle.GetStringFromName("addonsConfirmInstall.install");
+
+    return prompt.confirmEx(null, title, aPackages[0], flags, button, null, null, null, {value: false}) == 0;
   },
 
   openProgressDialog: function(aPackages, aCount, aManager) {

mobile/locales/en-US/chrome/browser.properties

@@ -13,6 +13,9 @@ addonsSearchFail.label=%S couldn't retrieve add-ons
 addonsSearchFail.button=OK
 addonsSearchSuccess.button=Clear search
 
+addonsConfirmInstall.title=Installing Add-on
+addonsConfirmInstall.install=Install
+
 addonType.2=Extension
 addonType.4=Theme
 addonType.8=Locale