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# Copyright 2021 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
"""Container class for a single progress bar task."""
from dataclasses import dataclass
from typing import Optional
from prompt_toolkit.application import get_app_or_none
from prompt_toolkit.shortcuts.progress_bar import ProgressBarCounter
def _redraw_ui() -> None:
"""Signal the prompt_toolkit app to re-draw"""
pt_app = get_app_or_none()
if pt_app:
pt_app.invalidate()
@dataclass
class ProgressBarTaskCounter:
"""Class to hold a single progress bar state."""
name: str
total: int
count: int = 0
completed: bool = False
canceled: bool = False
prompt_toolkit_counter: Optional[ProgressBarCounter] = None
def mark_canceled(self):
self.canceled = True
self.prompt_toolkit_counter.stopped = True # type: ignore
def mark_completed(self):
self.completed = True
self.prompt_toolkit_counter.done = True # type: ignore
def check_completion(self) -> None:
# Check for completion
if self.count >= self.total:
self.mark_completed()
def stop_updating_prompt_toolkit_counter(self) -> None:
"""If count is over total, stop updating the prompt_toolkit ETA."""
if self.count >= self.total:
self.prompt_toolkit_counter.done = True # type: ignore
def update(self, count: int = 1) -> None:
"""Increment this counter."""
self.count += count
if self.prompt_toolkit_counter:
self.prompt_toolkit_counter.items_completed += count
self.stop_updating_prompt_toolkit_counter()
_redraw_ui()
def set_new_total(self, new_total: int) -> None:
"""Set a new total count."""
self.count = new_total
if self.prompt_toolkit_counter:
self.prompt_toolkit_counter.items_completed = new_total
self.stop_updating_prompt_toolkit_counter()
_redraw_ui()
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