| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Called when the url of a tab changes. |
| function checkForValidUrl(tabId, changeInfo, tab) { |
| // If the letter 'g' is found in the tab's URL... |
| if (tab.url.indexOf('g') > -1) { |
| // ... show the page action. |
| chrome.pageAction.show(tabId); |
| } |
| }; |
| |
| // Listen for any changes to the URL of any tab. |
| chrome.tabs.onUpdated.addListener(checkForValidUrl); |
