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annotate browser_side/notification.py @ 371:d7870ab9d1ff

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server_side: blog: bug fixes
author souliane <souliane@mailoo.org>
date Sun, 23 Feb 2014 17:22:05 +0100
parents 835a8ae799e7
children f9130176bc8d
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835a8ae799e7 Add notifications support, fixes bug 7.
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1 from __pyjamas__ import JS
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2
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3
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4 class Notification(object):
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5 """
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6 If the browser supports it, the user allowed it to and the tab is in the
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7 background, send desktop notifications on messages.
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8
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9 Requires both Web Notifications and Page Visibility API.
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10 """
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11
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12 def __init__(self):
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13 JS("""
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14 this.enabled = false;
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15
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16 if (!('hidden' in document))
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17 document.hidden = false;
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18
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19 if (!('Notification' in window))
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20 return;
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21
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22 if (Notification.permission === 'granted')
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23 this.enabled = true;
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24
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25 else if (Notification.permission === 'default') {
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26 Notification.requestPermission(function(permission){
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27 if (permission !== 'granted')
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28 return;
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29
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30 this.enabled = true;
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31 });
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32 }
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33 """)
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34
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35 def notify(self, title, body, icon='/media/icons/apps/48/sat.png'):
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36 JS("""
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37 if (this.enabled && document.hidden) {
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38 notification = Notification(title, {body: body, icon: icon});
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39
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40 // Probably won’t work, but it doesn’t hurt to try.
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41 notification.addEventListener('click', function() {
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42 window.focus();
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43 });
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44 }
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45 """)