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<!--
A background page that manages notifications.
Copyright 2010 the Chromium Authors
Use of this source code is governed by a BSD-style license that can be found
in the "LICENSE" file.
Brian Kennish <bkennish@chromium.org>
-->
<script>
/*
Displays a notification with the current time. Requires "notifications"
permission in the manifest file (or calling
"webkitNotifications.requestPermission" beforehand).
*/
function show() {
var time = /(..)(:..)/(Date()); // The prettyprinted time.
var hour = time[1] % 12 || 12; // The prettyprinted hour.
var period = time[1] < 12 ? 'a.m.' : 'p.m.'; // The period of the day.
var notification = webkitNotifications.createNotification(
'48.png', // The image.
hour + time[2] + ' ' + period, // The title.
'Time to make the toast.' // The body.
);
notification.show();
}
// Conditionally initialize the options.
if (!localStorage.isInitialized) {
localStorage.isActivated = true; // The display activation.
localStorage.frequency = 1; // The display frequency, in minutes.
localStorage.isInitialized = true; // The option initialization.
}
// Test for notification support.
if (webkitNotifications) {
// While activated, show notifications at the display frequency.
if (JSON.parse(localStorage.isActivated)) { show(); }
var interval = 0; // The display interval, in minutes.
setInterval(function() {
interval++;
if (
JSON.parse(localStorage.isActivated) &&
localStorage.frequency <= interval
) {
show();
interval = 0;
}
}, 60000);
} else {
// Show a new tab with an error message.
chrome.tabs.create({url: 'error.html'});
}
</script>
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