browser (calls): screen sharing implementation: - the new screen sharing button toggle screen sharing state - the button reflect the screen sharing state (green crossed when not sharing, red uncrossed otherwise) - the screen sharing stream replaces the camera one, and vice versa. No re-negociation is needed. - stopping the sharing through browser's dialog is supported - the screen sharing button is only visibile if supported by the platform rel 432

#!/usr/bin/env python3


from libervia.backend.core.i18n import _
from libervia.backend.core.log import getLogger
from libervia.backend.tools.common import data_format
from twisted.internet import defer
import datetime
import time
from dateutil import tz

from libervia.web.server.constants import Const as C

log = getLogger(__name__)


name = "calls"
access = C.PAGES_ACCESS_PROFILE
template = "call/call.html"