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1 <!-- | |
2 * Copyright (c) 2010 The Chromium Authors. All rights reserved. Use of this | |
3 * source code is governed by a BSD-style license that can be found in the | |
4 * LICENSE file. | |
5 --> | |
6 <html> | |
7 <head> | |
8 <script> | |
9 // A dictionary keyed off of tabId that keeps track of data per tab (for | |
10 // example what feedUrl was detected in the tab). | |
11 var feedData = {}; | |
12 | |
13 chrome.extension.onRequest.addListener(function(request, sender) { | |
14 if (request.msg == "feedIcon") { | |
15 // We have received a list of feed urls found on the page. | |
16 // Enable the page action icon. | |
17 feedData[sender.tab.id] = request.feeds; | |
18 chrome.pageAction.setTitle( | |
19 { tabId: sender.tab.id, | |
20 title: chrome.i18n.getMessage("rss_subscription_action_title")}); | |
21 chrome.pageAction.show(sender.tab.id); | |
22 } else if (request.msg == "feedDocument") { | |
23 // We received word from the content script that this document | |
24 // is an RSS feed (not just a document linking to the feed). | |
25 // So, we go straight to the subscribe page in a new tab and | |
26 // navigate back on the current page (to get out of the xml page). | |
27 // We don't want to navigate in-place because trying to go back | |
28 // from the subscribe page takes us back to the xml page, which | |
29 // will redirect to the subscribe page again (we don't support a | |
30 // location.replace equivalant in the Tab navigation system). | |
31 chrome.tabs.executeScript(sender.tab.id, | |
32 {code: "if (history.length > 1) " + | |
33 "history.go(-1); else window.close();"}); | |
34 var url = "subscribe.html?" + encodeURIComponent(request.href); | |
35 url = chrome.extension.getURL(url); | |
36 chrome.tabs.create({url: url, index: sender.tab.index}); | |
37 } | |
38 }); | |
39 | |
40 chrome.tabs.onRemoved.addListener(function(tabId) { | |
41 delete feedData[tabId]; | |
42 }); | |
43 | |
44 // On Linux, popups aren't supported yet, so Chrome will call into us | |
45 // when the user clicks on the icon in the OmniBox. | |
46 chrome.pageAction.onClicked.addListener(function(tab) { | |
47 chrome.windows.get(tab.windowId, function(window) { | |
48 // We need to know if we are the active window, because the tab may | |
49 // have moved to another window and we don't want to execute this | |
50 // action multiple times. | |
51 if (window.focused) { | |
52 // Create a new tab showing the subscription page with the right | |
53 // feed URL. | |
54 var url = "subscribe.html?" + | |
55 encodeURIComponent(feedData[tab.id][0].href); | |
56 chrome.tabs.create({url: url, windowId: window.id}); | |
57 } | |
58 }); | |
59 }); | |
60 </script> | |
61 </head> | |
62 </html> | |
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