I'm making a Chrome extension that receives Chrome Google Cloud Messages. I want to detect when puter wakes up from sleep/reconnects to internet, so that my application can start receiving messages again. For my specific case, I don't want GCM to throttle the pushes, so I set the ttl to 0, which is deliver now or never. (user device will never receive message while idle.)

In javascript, how do I detect when Chrome browser recovers from idle state?

More specifically, how could I do it in Chrome extension using chrome. api calls?

I'm making a Chrome extension that receives Chrome Google Cloud Messages. I want to detect when puter wakes up from sleep/reconnects to internet, so that my application can start receiving messages again. For my specific case, I don't want GCM to throttle the pushes, so I set the ttl to 0, which is deliver now or never. (user device will never receive message while idle.)

In javascript, how do I detect when Chrome browser recovers from idle state?

More specifically, how could I do it in Chrome extension using chrome. api calls?

• javascript
• google-chrome
• google-chrome-extension

• I wonder if you really need to do so. I would expect that Google manages receiving GCM for you after you've called register once. – Xan Commented Nov 13, 2014 at 19:44
• So you want to municate this fact to your GCM server? Using GCM? – Xan Commented Nov 13, 2014 at 19:56
• @Xan I will just do a manual fetch from my server on missed notifications. – Keven Wang Commented Nov 13, 2014 at 20:20

2 Answers 2

Chrome has an idle API:

chrome.idle.onStateChanged(function(state) {
    if (state == 'active') {
        console.log('State is now active');
    }
});

You can read about it here: https://developer.chrome./apps/idle

You can use idle.queryState also and put a check if state === active inside query

    chrome.idle.queryState(15, function (state) {
if (state === "active"){
//Your logic
}
}