Mercurial > libervia-web
view browser_side/notification.py @ 439:d52f529a6d42
browser side: use of new log system (first draft):
- configuration is hardcoded in libervia.py, it will change in the (hopefuly) near future
- log level is DEBUG for the moment, will be changed to INFO when configuration will not be hardcoded anymore
- the basic log backend is used, in the future, a console.debug/info/etc should be used instead. A log widget which HTML colors is also an option
author | Goffi <goffi@goffi.org> |
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date | Thu, 08 May 2014 17:21:34 +0200 |
parents | 4ba4b099d266 |
children |
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from __pyjamas__ import JS, wnd from sat.core.log import getLogger log = getLogger(__name__) from pyjamas import Window from pyjamas.Timer import Timer from browser_side import dialog from sat.core.i18n import _ 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): 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 self._notif_count = 0 self._orig_title = Window.getTitle() 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): Window.setTitle(self._orig_title) self._notif_count = 0 # def onBlur(self): # pass def isHidden(self): JS("""return document.hidden;""") def _notify(self, title, body, icon): if not self.enabled: return notification = None JS(""" notification = new Notification(title, {body: body, icon: icon}); // 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 highlightTab(self): self._notif_count += 1 Window.setTitle("%s (%d)" % (self._orig_title, self._notif_count)) def notify(self, title, body, icon='/media/icons/apps/48/sat.png'): if self.isHidden(): self._notify(title, body, icon) self.highlightTab()