def __init__(self, app, name, html_page):
super(UpdatePage, self).__init__(app, name)
self.widget_tmpl = WidgetTemplate(self, "widget_html")
self.html_page = html_page
self.session = self.SessionParameter(app, "session")
self.add_parameter(self.session)
item = self.WidgetParameter(app, "item", self.html_page)
self.widgets = ListParameter(app, "widget", item)
self.add_parameter(self.widgets)
class UpdatePage(Page):
def __init__(self, app, name, html_page):
super(UpdatePage, self).__init__(app, name)
self.widget_tmpl = WidgetTemplate(self, "widget_html")
self.html_page = html_page
self.session = self.SessionParameter(app, "session")
self.add_parameter(self.session)
item = self.WidgetParameter(app, "item", self.html_page)
self.widgets = ListParameter(app, "widget", item)
self.add_parameter(self.widgets)
def get_content_type(self, session):
return self.xml_content_type
def get_cache_control(self, session):
return "no-cache"
def do_process(self, session):
# get the session for the main page
sess = self.session.get(session)
# Allow object frames to have None as an object
# during the process pass.
self.allow_object_not_found.set(sess, True)
self.html_page.process(sess)
# if the main page set its redirect attribute in its session
redirect = self.html_page.redirect.get(sess)
# pass that redirect on to the the update page
if redirect:
self.redirect.set(session, redirect)
def service(self, session):
self.process(session)
# Skip the render if a redirect has been set
if not self.redirect.get(session):
res = self.render(session)
# Check for a redirect from either process or render
url = self.redirect.get(session)
if url:
# Send the url to the ajax script in the update response
raise UpdateRedirect(url)
return res
def render_widgets(self, session):
writer = Writer()
sess = self.session.get(session)
widgets = self.widgets.get(session)
for widget in widgets:
self.widget_tmpl.render(writer, sess, widget)
# If a widget generated a redirect url,
# there is no sense finishing the render
redirect = self.redirect.get(sess)
if redirect:
self.redirect.set(session, redirect)
break
return writer.to_string()
def render_widget_id(self, session, widget):
return widget.path
def render_widget(self, session, widget):
return widget.render(session)
class SessionParameter(Parameter):
def do_marshal(self, session):
return session.marshal()
def do_unmarshal(self, string):
return Session.unmarshal(self.app, string)
def get(self, session):
sess = super(UpdatePage.SessionParameter, self).get(session)
sess.client_session = session.client_session
sess.background = True
return sess
class WidgetParameter(Parameter):
def __init__(self, app, name, page):
self.page = page
def do_marshal(self, widget):
return widget.path
def do_unmarshal(self, path):
return self.page.page_widgets_by_path.get(path)
