Index: chrome/common/extensions/docs/examples/api/pageAction/pageaction_by_url/background.js |
diff --git a/chrome/common/extensions/docs/examples/api/pageAction/pageaction_by_url/background.js b/chrome/common/extensions/docs/examples/api/pageAction/pageaction_by_url/background.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ed1769dcda9c5080af0e38fe09675f39c583c275 |
--- /dev/null |
+++ b/chrome/common/extensions/docs/examples/api/pageAction/pageaction_by_url/background.js |
@@ -0,0 +1,15 @@ |
+// 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); |