def yes_no_dialog(title='',
text='',
yes_text='Yes',
no_text='No',
style=None,
async_=False):
"""
Display a Yes/No dialog.
Return a boolean.
"""
def yes_handler():
get_app().set_return_value(True)
def no_handler():
get_app().set_return_value(False)
dialog = Dialog(title=title,
body=Label(text=text, dont_extend_height=True),
buttons=[
Button(text=yes_text, handler=yes_handler),
Button(text=no_text, handler=no_handler),
],
with_background=True)
return _run_dialog(dialog, style, async_=async_)
def radiolist_dialog(title='',
text='',
ok_text='Ok',
cancel_text='Cancel',
values=None,
style=None,
async_=False):
"""
Display a simple message box and wait until the user presses enter.
"""
def ok_handler():
get_app().set_return_value(radio_list.current_value)
radio_list = RadioList(values)
dialog = Dialog(title=title,
body=HSplit([
Label(text=text, dont_extend_height=True),
radio_list,
],
padding=1),
buttons=[
Button(text=ok_text, handler=ok_handler),
Button(text=cancel_text, handler=_return_none),
],
with_background=True)
return _run_dialog(dialog, style, async_=async_)
def message_dialog(title='', text='', ok_text='Ok', style=None, async_=False):
"""
Display a simple message box and wait until the user presses enter.
"""
dialog = Dialog(title=title,
body=Label(text=text, dont_extend_height=True),
buttons=[
Button(text=ok_text, handler=_return_none),
],
with_background=True)
return _run_dialog(dialog, style, async_=async_)
def progress_dialog(title='',
text='',
run_callback=None,
style=None,
async_=False):
"""
:param run_callback: A function that receives as input a `set_percentage`
function and it does the work.
"""
assert callable(run_callback)
progressbar = ProgressBar()
text_area = TextArea(
focussable=False,
# Prefer this text area as big as possible, to avoid having a window
# that keeps resizing when we add text to it.
height=D(preferred=10**10))
dialog = Dialog(body=HSplit([
Box(Label(text=text)),
Box(text_area, padding=D.exact(1)),
progressbar,
]),
title=title,
with_background=True)
app = _create_app(dialog, style)
def set_percentage(value):
progressbar.percentage = int(value)
app.invalidate()
def log_text(text):
text_area.buffer.insert_text(text)
app.invalidate()
# Run the callback in the executor. When done, set a return value for the
# UI, so that it quits.
def start():
try:
run_callback(set_percentage, log_text)
finally:
app.set_return_value(None)
run_in_executor(start)
if async_:
return app.run_async()
else:
return app.run()
def input_dialog(title='',
text='',
ok_text='OK',
cancel_text='Cancel',
completer=None,
password=False,
style=None,
async_=False):
"""
Display a text input box.
Return the given text, or None when cancelled.
"""
def accept():
get_app().layout.focus(ok_button)
def ok_handler():
get_app().set_return_value(textfield.text)
ok_button = Button(text=ok_text, handler=ok_handler)
cancel_button = Button(text=cancel_text, handler=_return_none)
textfield = TextArea(multiline=False,
password=password,
completer=completer,
accept_handler=accept)
dialog = Dialog(title=title,
body=HSplit([
Label(text=text, dont_extend_height=True),
textfield,
],
padding=D(preferred=1, max=1)),
buttons=[ok_button, cancel_button],
with_background=True)
return _run_dialog(dialog, style, async_=async_)