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#!/usr/bin/env python
# Copyright 2022 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.
""" Prompt toolkit application for pw watch. """
from typing import Any
from pygments.lexers.special import TextLexer
from prompt_toolkit.application import Application
from prompt_toolkit.clipboard.pyperclip import PyperclipClipboard
from prompt_toolkit.document import Document
from prompt_toolkit.history import (
FileHistory,
History,
ThreadedHistory,
)
from prompt_toolkit.key_binding import KeyBindings, merge_key_bindings
from prompt_toolkit.layout import (
Dimension,
DynamicContainer,
FormattedTextControl,
HSplit,
Layout,
Window,
)
from prompt_toolkit.lexers import PygmentsLexer
from prompt_toolkit.widgets import SearchToolbar, TextArea
from prompt_toolkit.styles import DynamicStyle, merge_styles
from pw_console.console_app import get_default_colordepth
from pw_console.console_prefs import ConsolePrefs
from pw_console.get_pw_console_app import PW_CONSOLE_APP_CONTEXTVAR
from pw_console.log_pane import LogPane
import pw_console.style
from pw_console.widgets import ToolbarButton, WindowPane, WindowPaneToolbar
from pw_console.window_manager import WindowManager
from pw_console.plugin_mixin import PluginMixin
class WatchWindowManager(WindowManager):
def update_root_container_body(self):
self.application.window_manager_container = self.create_root_container(
)
class RunHistoryPane(WindowPane):
"""Pigweed Console plugin window pane.
Accepts text input in one window split and displays the output in another.
"""
def __init__(
self,
application: Any,
pane_title: str = 'Run History',
):
super().__init__(pane_title=pane_title, application=application)
self.application = application
self.search_field = SearchToolbar() # For reverse search (ctrl-r)
self.output_field = TextArea(
style='class:output-field',
text='pw_watch',
focusable=True,
focus_on_click=True,
scrollbar=True,
line_numbers=False,
search_field=self.search_field,
lexer=PygmentsLexer(TextLexer),
)
key_bindings = KeyBindings()
self.output_field.control.key_bindings = key_bindings
# Setup the bottom toolbar
self.bottom_toolbar = WindowPaneToolbar(self)
self.bottom_toolbar.add_button(
ToolbarButton('Enter', 'Run Build', self.run_build))
self.bottom_toolbar.add_button(
ToolbarButton(description='Copy Output',
mouse_handler=self.copy_all_output))
self.bottom_toolbar.add_button(
ToolbarButton('q', 'Quit', self.application.quit))
self.container = self._create_pane_container(
self.output_field,
self.search_field,
self.bottom_toolbar,
)
# Trigger text input, same as hitting enter inside sefl.input_field.
def run_build(self):
self.application.run_build()
def update_output(self, text: str):
# Add text to output buffer.
cursor_position = self.output_field.document.cursor_position
if cursor_position > len(text):
cursor_position = len(text)
self.output_field.buffer.set_document(
Document(text=text, cursor_position=cursor_position))
def copy_selected_output(self):
clipboard_data = self.output_field.buffer.copy_selection()
self.application.application.clipboard.set_data(clipboard_data)
def copy_all_output(self):
self.application.application.clipboard.set_text(
self.output_field.buffer.text)
class WatchApp(PluginMixin):
"""Pigweed Watch main window application."""
# pylint: disable=R0902 # too many instance attributes
def __init__(self, startup_args, event_handler, loggers):
# watch startup args
self.startup_args = startup_args
self.event_handler = event_handler
self.color_depth = get_default_colordepth()
PW_CONSOLE_APP_CONTEXTVAR.set(self)
self.prefs = ConsolePrefs(project_file=False, user_file=False)
self.search_history_filename = self.prefs.search_history
# History instance for search toolbars.
self.search_history: History = ThreadedHistory(
FileHistory(self.search_history_filename))
self.window_manager = WatchWindowManager(self)
pw_console.python_logging.setup_python_logging()
#log pane
log_pane = LogPane(application=self, pane_title='log pane')
for logger in loggers:
log_pane.add_log_handler(logger, level_name='INFO')
# disable table view to allow teriminal based coloring
log_pane.table_view = False
self.run_history_pane = RunHistoryPane(self)
# Bottom Window: pw watch log messages
self.window_manager.add_pane(log_pane)
# Top Window: Ninja build output
self.window_manager.add_pane(self.run_history_pane)
self.window_manager_container = (
self.window_manager.create_root_container())
self.root_container = HSplit([
# The top toolbar.
Window(
content=FormattedTextControl(self.get_statusbar_text),
height=Dimension.exact(1),
style='',
),
# The main content.
DynamicContainer(lambda: self.window_manager_container),
])
key_bindings = KeyBindings()
@key_bindings.add('c-c')
@key_bindings.add("q")
def _quit(event):
"Quit."
loggers[0].info('Got quit signal; exiting...')
event.app.exit()
@key_bindings.add("enter")
def _quit(_):
"Rebuild."
self.run_build()
self.key_bindings = key_bindings
self._current_theme = pw_console.style.generate_styles()
self.application = Application(
layout=Layout(self.root_container,
focused_element=self.run_history_pane),
key_bindings=merge_key_bindings([
self.key_bindings,
self.window_manager.key_bindings,
]),
enable_page_navigation_bindings=True,
mouse_support=True,
color_depth=self.color_depth,
clipboard=PyperclipClipboard(),
style=DynamicStyle(lambda: merge_styles([
self._current_theme,
])),
full_screen=True,
)
self.plugin_init(
plugin_callback=self.check_stdout,
plugin_callback_frequency=1.0,
plugin_logger_name='pw_watch_stdout_checker',
)
def update_menu_items(self):
# Required by the Window Manager Class.
pass
def redraw_ui(self):
"""Redraw the prompt_toolkit UI."""
if hasattr(self, 'application'):
# Thread safe way of sending a repaint trigger to the input event
# loop.
self.application.invalidate()
def focus_on_container(self, pane):
"""Set application focus to a specific container."""
self.application.layout.focus(pane)
def run_build(self):
"""Manually trigger a rebuild."""
self.event_handler.rebuild()
def get_statusbar_text(self):
return [('class:logo', 'Pigweed Watch'),
('class:theme-fg-cyan',
' {} '.format(self.startup_args.get('build_directories')))]
def quit(self):
self.application.exit()
def check_stdout(self) -> bool:
if self.event_handler.current_stdout:
self.run_history_pane.update_output(
self.event_handler.current_stdout)
return True
return False
def run(self):
self.plugin_start()
# Run the prompt_toolkit application
self.application.run()
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