Source code for caspia.gateway.services.button

from caspia.gateway.services import GatewayService
from caspia.meadow.client import characteristic_read_handler
from caspia.meadow.services import ButtonBase
from caspia.node import components


class Button(GatewayService, ButtonBase):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.button_c = None  # The linked Button Component

    def configure(self):
        self.button_c = self.network.get_configured_component(self.get_node(), components.Button,
                                                              self.config['location'])

    @property
    def dependant_components(self):
        return {self.button_c}

    async def on_component_event(self, component, event):
        if self.button_c == component:
            if isinstance(event, components.Button.PushEvent):
                await self.notify(self.push, None)
                await self.notify(self.is_pushed, True)
            elif isinstance(event, components.Button.ReleaseEvent):
                await self.notify(self.release, None)
                await self.notify(self.is_pushed, False)
            elif isinstance(event, components.Button.ButtonEvent):
                if event.event == components.Button.ButtonEvent.EVENT_CLICK:
                    await self.notify(self.event, 'click')
                elif event.event == components.Button.ButtonEvent.EVENT_HOLD:
                    await self.notify(self.event, 'hold', extra={'interval': event.interval})

    @characteristic_read_handler('is_pushed')
    async def is_pushed_read(self, **kwargs):
        if self.button_c.state is None or self.button_c.state.is_pushed is None:
            return False
        return self.button_c.state.is_pushed