ad_widget.py

class AdImageX(Widget, Ad):
    source = None  # StringProperty()
    texture = None
    allow_stretch = BooleanProperty(True)
    keep_ratio = BooleanProperty(False)

    def __init__(self, **kwargs):
        super(AdImageX, self).__init__(**kwargs)
        self.opacity = 0

    @profile
    def update_texture(self, texture, dt):
        self.dispatch('on_ready')
        self.ad_loaded = True
        self.opacity = 1
        self.canvas.clear()
        with self.canvas:
            Rectangle(texture=texture, size=self.size, pos=self.pos)

    @profile
    def image_loaded(self, proxyImage):
        # if proxyImage.image.texture:
        Logger.debug("AdImageX: %s has been loaded" % proxyImage.image.filename)
        Clock.schedule_once(partial(self.update_texture, proxyImage.image.texture), 0.)

    # @profile
    def on_ad(self, widget, item):
        try:
            self.source = item.absolute_url
        except AttributeError:
            self.source = item.path
        Logger.debug("AdImageX: %s is going to be loaded" % self.source)
        image = SignageLoader.image(self.source, nocache=True)
        image.bind(on_load=self.image_loaded)

    @property
    def texture(self):
        return self.texture