Display "Open Sync Preferences..." button instead of "Report Errors..." on WebDAV verification failure during sync

chrome/content/zotero/xpcom/storage.js

@@ -99,8 +99,23 @@ Zotero.Sync.Storage = new function () {
 				}
 				else {
 					Zotero.debug(_session.name + " verification failed");
-					_callbacks.onError(_session.name + " verification failed. Verify your "
-						+ "WebDAV settings in the Sync pane of the Zotero preferences.");
+					
+					var e = new Zotero.Error(
+						_session.name + " verification failed. Verify your "
+							+ "WebDAV settings in the Sync pane of the Zotero preferences.",
+						0,
+						{
+							// TODO: localize
+							dialogButtonText: "Open Sync Preferences...",
+							dialogButtonCallback: function () {
+								var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
+										   .getService(Components.interfaces.nsIWindowMediator);
+								var lastWin = wm.getMostRecentWindow("navigator:browser");
+								lastWin.ZoteroPane.openPreferences('zotero-prefpane-sync');
+							}
+						}
+					);
+					_callbacks.onError(e);
 				}
 			}
 			

chrome/content/zotero/xpcom/sync.js

@@ -805,8 +805,15 @@ Zotero.Sync.Runner = new function () {
 						Components.utils.reportError(message);
 					}
 					
+					if (typeof buttonText == 'undefined') {
+						// TODO: localize
+						buttonText = "Report Error...";
+						buttonCallback = function () {
+							win.ZoteroPane.reportErrors();
+						}
+					}
 					// If secondary button is explicitly null, just use an alert
-					if (buttonText === null) {
+					else if (buttonText === null) {
 						pr.alert(title, message);
 						return;
 					}
@@ -818,15 +825,12 @@ Zotero.Sync.Runner = new function () {
 						message,
 						buttonFlags,
 						"",
-						// TODO: localize
-						"Report Error...",
+						buttonText,
 						"", null, {}
 					);
 					
 					if (index == 1) {
-						win.setTimeout(function () {
-							win.ZoteroPane.reportErrors();
-						}, 1);
+						setTimeout(buttonCallback, 1);
 					}
 				}
 			}