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POHow to save an option for background.html in popup?
 

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  1. POHow to save an option for background.html in popup?
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    <p>I have a problem, what i cant solve yet. I have a popup page with a menu, and tabs, and there is a settings tab. On settings tab, i <strong>save</strong> some item to localstorage, one of them is notification_time for a desktop notification.</p> <p><strong>Note</strong>: i have no options page! </p> <p>My extension has this popup window and a background page, its function is to alert user with a desktop notification. I show notification in every 5,10,30 minutes, 1,2 hours etc. And this time should be chooseable on popup pages's options menu. The problem is, if 5 minutes is saved, and when i update to 10 minutes for example, than background.html is not updating himself! I rewrited code almost 20 times, but couldnt find solution. Heres a code sample,and a printscreen to get clear about my problem.</p> <p><img src="https://i.stack.imgur.com/pEZVj.jpg" alt="enter image description here"></p> <p><strong>popup</strong>: </p> <pre><code>$("#save_settings").click(function(){ var bgp = chrome.extension.getBackgroundPage(); localStorage.setItem("notifynumber",$("#notifynumber").val()); if($("#notify").attr('checked')){ localStorage.setItem('chbox','true'); } else { localStorage.setItem('chbox','false'); } if($("#notif_time_select :selected").val()!="default"){ bgp.setTime(parseInt($("#notif_time_select :selected").val())); } if($("#org_select :selected").val()!="default"){ localStorage.setItem('org',$("#org_select :selected").val().replace(/%20/g," ")); } }); </code></pre> <p><strong>Note</strong>: save_settings is a button, on the tab there is a checkbox (if checked then notifications are allowed, else diabled). There are two html select tags, one for choosing some data (org = organisation), and one, for selecting time. <code>"#notif_time_select"</code> is the html select tag, where i choose 5,10,30 minutes etc... </p> <p>So, whenever i click save button, i save checkbox state to localstorage,and i call one function from background page, to save time. :<code>bgp.setTime(parseInt($("#notif_time_select :selected").val()));</code></p> <p><strong>background page:</strong></p> <p>for saving time i use function setTime:</p> <pre><code>var time = 300000; // default function setTime(time){ this.time=time; console.log("time set to: "+this.time); } </code></pre> <p>after, i use setInterval to show notification periodically</p> <pre><code>setInterval(function(){ howmanyOnline("notify",function(data){ if(data&gt;localStorage.getItem("notifynumber")){ if (!window.webkitNotifications) { // check browser support alert('Sorry , your browser does not support desktop notifications.'); } notifyUser(data); // create the notification } if(localStorage.getItem('tweet')=='true'){ if(data&gt;localStorage.getItem("notifynumber")){ sendTweet(data,localStorage.getItem('org'),localStorage.getItem('ck'),localStorage.getItem('cs'),localStorage.getItem('at'),localStorage.getItem('ats')); } } }); },time); </code></pre> <p>The code inside setInterval works fine, the only problem is,that </p> <pre><code>},time); </code></pre> <p>is not updating well. If i change settings to show notifications in every 10 minutes, it stays on 5 minute. The only way is to restart the whole extension. How could i update setInterval's frequency without restarting the whole extension? Thanks Jim</p> <hr> <p>What if i save notif_time to localStorage too, and in background, i set up a listener, to listen for localStorage changes. Is there a way to listen for a particular localStorage item changes?!</p>
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