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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Global variables only exist for the life of the page, so they get reset | 5 // Global variables only exist for the life of the page, so they get reset |
6 // each time the page is unloaded. | 6 // each time the page is unloaded. |
7 var counter = 1; | 7 var counter = 1; |
8 | 8 |
9 var lastTabId = -1; | 9 var lastTabId = -1; |
10 function sendMessage() { | 10 function sendMessage() { |
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49 // another here. | 49 // another here. |
50 sendMessage(); | 50 sendMessage(); |
51 }); | 51 }); |
52 }); | 52 }); |
53 }); | 53 }); |
54 | 54 |
55 chrome.experimental.keybinding.onCommand.addListener(function(command) { | 55 chrome.experimental.keybinding.onCommand.addListener(function(command) { |
56 chrome.tabs.create({url: "http://www.google.com/"}); | 56 chrome.tabs.create({url: "http://www.google.com/"}); |
57 }); | 57 }); |
58 | 58 |
59 chrome.extension.onMessage.addListener(function(msg, _, sendResponse) { | 59 chrome.runtime.onMessage.addListener(function(msg, _, sendResponse) { |
60 if (msg.setAlarm) { | 60 if (msg.setAlarm) { |
61 chrome.alarms.create({delayInMinutes: 0.1}); | 61 chrome.alarms.create({delayInMinutes: 0.1}); |
62 } else if (msg.delayedResponse) { | 62 } else if (msg.delayedResponse) { |
63 // Note: setTimeout itself does NOT keep the page awake. We return true | 63 // Note: setTimeout itself does NOT keep the page awake. We return true |
64 // from the onMessage event handler, which keeps the message channel open - | 64 // from the onMessage event handler, which keeps the message channel open - |
65 // in turn keeping the event page awake - until we call sendResponse. | 65 // in turn keeping the event page awake - until we call sendResponse. |
66 setTimeout(function() { | 66 setTimeout(function() { |
67 sendResponse("Got your message."); | 67 sendResponse("Got your message."); |
68 }, 5000); | 68 }, 5000); |
69 return true; | 69 return true; |
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82 chrome.runtime.onSuspend.addListener(function() { | 82 chrome.runtime.onSuspend.addListener(function() { |
83 chrome.tabs.query({active: true, currentWindow: true}, function(tabs) { | 83 chrome.tabs.query({active: true, currentWindow: true}, function(tabs) { |
84 // After the unload event listener runs, the page will unload, so any | 84 // After the unload event listener runs, the page will unload, so any |
85 // asynchronous callbacks will not fire. | 85 // asynchronous callbacks will not fire. |
86 alert("This does not show up."); | 86 alert("This does not show up."); |
87 }); | 87 }); |
88 console.log("Unloading."); | 88 console.log("Unloading."); |
89 chrome.browserAction.setBadgeText({text: ""}); | 89 chrome.browserAction.setBadgeText({text: ""}); |
90 chrome.tabs.sendMessage(lastTabId, "Background page unloaded."); | 90 chrome.tabs.sendMessage(lastTabId, "Background page unloaded."); |
91 }); | 91 }); |
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