view browser_side/notification.py @ 402:d7e78cb78dfc

browser_side: HTMLTextEditor and LightTextEditor factorization
author souliane <souliane@mailoo.org>
date Thu, 13 Mar 2014 16:05:35 +0100
parents 835a8ae799e7
children f9130176bc8d
line wrap: on
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from __pyjamas__ import JS


class Notification(object):
    """
    If the browser supports it, the user allowed it to and the tab is in the
    background, send desktop notifications on messages.

    Requires both Web Notifications and Page Visibility API.
    """

    def __init__(self):
        JS("""
        this.enabled = false;

        if (!('hidden' in document))
            document.hidden = false;

        if (!('Notification' in window))
            return;

        if (Notification.permission === 'granted')
            this.enabled = true;

        else if (Notification.permission === 'default') {
            Notification.requestPermission(function(permission){
                if (permission !== 'granted')
                    return;

                this.enabled = true;
            });
        }
        """)

    def notify(self, title, body, icon='/media/icons/apps/48/sat.png'):
        JS("""
        if (this.enabled && document.hidden) {
            notification = Notification(title, {body: body, icon: icon});

            // Probably won’t work, but it doesn’t hurt to try.
            notification.addEventListener('click', function() {
                window.focus();
            });
        }
        """)