Mercurial > libervia-web
view src/browser/sat_browser/notification.py @ 1096:01538d8a77be
merge-requests, tickets: new "edit" pages
author | Goffi <goffi@goffi.org> |
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date | Fri, 01 Jun 2018 13:04:57 +0200 |
parents | 620306b3d5be |
children |
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from __pyjamas__ import JS, wnd from sat.core.log import getLogger log = getLogger(__name__) from sat.core.i18n import _ from pyjamas import Window from pyjamas.Timer import Timer import favico.min.js import dialog TIMER_DELAY = 5000 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, alerts_counter): """ @param alerts_counter (FaviconCounter): counter instance """ self.alerts_counter = alerts_counter self.enabled = False user_agent = None notif_permission = None JS(""" if (!('hidden' in document)) document.hidden = false; user_agent = navigator.userAgent if (!('Notification' in window)) return; notif_permission = Notification.permission if (Notification.permission === 'granted') this.enabled = true; else if (Notification.permission === 'default') { Notification.requestPermission(function(permission){ if (permission !== 'granted') return; self.enabled = true; //need to use self instead of this }); } """) if "Chrome" in user_agent and notif_permission not in ['granted', 'denied']: self.user_agent = user_agent self._installChromiumWorkaround() wnd().onfocus = self.onFocus # wnd().onblur = self.onBlur def _installChromiumWorkaround(self): # XXX: Workaround for Chromium behaviour, it's doens't manage requestPermission on onLoad event # see https://code.google.com/p/chromium/issues/detail?id=274284 # FIXME: need to be removed if Chromium behaviour changes try: version_full = [s for s in self.user_agent.split() if "Chrome" in s][0].split('/')[1] version = int(version_full.split('.')[0]) except (IndexError, ValueError): log.warning("Can't find Chromium version") version = 0 log.info("Chromium version: %d" % (version,)) if version < 22: log.info("Notification use the old prefixed version or are unmanaged") return if version < 32: dialog.InfoDialog(_("Notifications activation for Chromium"), _('You need to activate notifications manually for your Chromium version.<br/>To activate notifications, click on the favicon on the left of the address bar')).show() return log.info("==> Installing Chromium notifications request workaround <==") self._old_click = wnd().onclick wnd().onclick = self._chromiumWorkaround def _chromiumWorkaround(self): log.info("Activating workaround") JS(""" Notification.requestPermission(function(permission){ if (permission !== 'granted') return; self.enabled = true; //need to use self instead of this }); """) wnd().onclick = self._old_click def onFocus(self, event=None): self.alerts_counter.update(extra=0) # def onBlur(self, event=None): # pass def isHidden(self): JS("""return document.hidden;""") def _notify(self, title, body, icon): if not self.enabled: return notification = None # FIXME: icon has been removed because the notification can't display a HTTPS file JS(""" notification = new Notification(title, {body: body}); // Probably won’t work, but it doesn’t hurt to try. notification.addEventListener('click', function() { window.focus(); }); """) notification.onshow = lambda: Timer(TIMER_DELAY, lambda timer: notification.close()) def notify(self, title, body, icon='/media/icons/apps/48/sat.png'): if self.isHidden(): self._notify(title, body, icon) class FaviconCounter(object): """Display numbers over the favicon to signal e.g. waiting messages""" def __init__(self): # XXX: the file favico.min.js is loaded from public/libervia.html because I get NS_ERROR_FAILURE when it's loaded with Pyjamas. It sounds like a context issue, with the favicon not being found. JS(""" self.counter = new top.Favico({ animation : 'slide', bgColor: '#5CB85C', }); """) self.count = 0 # messages that are not displayed self.extra = 0 # messages that are displayed but the window is hidden def update(self, count=None, extra=None): """Update the favicon counter. @param count (int): primary counter @param extra (int): extra counter """ if count is not None: self.count = count if extra is not None: self.extra = extra self.counter.badge(self.count + self.extra)