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import asyncio
from trame.app import asynchronous, get_server
from trame.ui.vuetify import SinglePageLayout
from trame.widgets import vuetify
# -----------------------------------------------------------------------------
# Trame app
# -----------------------------------------------------------------------------
server = get_server(client_type="vue2", ws_heart_beat=5) # 5s
state, ctrl = server.state, server.controller
# -----------------------------------------------------------------------------
# State setup
# -----------------------------------------------------------------------------
state.count = 1
state.running_jobs = 0
@asynchronous.task # <--- if commented the heartbeat will think the server is dead and crash server
async def start_count():
with state:
state.count = 0
state.running_jobs += 1
for i in range(int(state.delta)):
with state:
state.count += 1
await asyncio.sleep(0.5)
with state:
state.running_jobs -= 1
ctrl.run = start_count
# -----------------------------------------------------------------------------
# UI setup
# -----------------------------------------------------------------------------
layout = SinglePageLayout(server)
with layout:
with layout.toolbar as tb:
vuetify.VSpacer()
tb.add_child("RunningTasks({{ running_jobs }}) - CountSize({{ delta }})")
vuetify.VSlider(
v_model=("delta", 10),
min=10,
max=100,
step=1,
hide_details=True,
dense=True,
classes="mx-4",
)
with vuetify.VBtn(icon=True, click=ctrl.run):
vuetify.VIcon("mdi-run")
with layout.content:
with vuetify.VContainer() as container:
container.add_child("{{ count }}")
# -----------------------------------------------------------------------------
# start server
# -----------------------------------------------------------------------------
if __name__ == "__main__":
server.start()
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