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#!/usr/bin/env python3
from asciimatics.event import KeyboardEvent
from asciimatics.widgets import Frame, Layout, FileBrowser, Widget, Label, PopUpDialog, Text, \
Divider
from asciimatics.scene import Scene
from asciimatics.screen import Screen
from asciimatics.exceptions import ResizeScreenError, StopApplication
import sys
import os
try:
import magic
except ImportError:
pass
class DemoFrame(Frame):
def __init__(self, screen):
super(DemoFrame, self).__init__(
screen, screen.height, screen.width, has_border=False, name="My Form")
# Create the (very simple) form layout...
layout = Layout([1], fill_frame=True)
self.add_layout(layout)
# Now populate it with the widgets we want to use.
self._details = Text()
self._details.disabled = True
self._details.custom_colour = "field"
self._list = FileBrowser(Widget.FILL_FRAME,
os.path.abspath("."),
name="mc_list",
on_select=self.popup,
on_change=self.details)
layout.add_widget(Label("Local disk browser sample"))
layout.add_widget(Divider())
layout.add_widget(self._list)
layout.add_widget(Divider())
layout.add_widget(self._details)
layout.add_widget(Label("Press Enter to select or `q` to quit."))
# Prepare the Frame for use.
self.fix()
def popup(self):
# Just confirm whenever the user actually selects something.
self._scene.add_effect(
PopUpDialog(self._screen, "You selected: {}".format(self._list.value), ["OK"]))
def details(self):
# If python magic is installed, provide a little more detail of the current file.
if self._list.value:
if os.path.isdir(self._list.value):
self._details.value = "Directory"
elif os.path.isfile(self._list.value):
try:
self._details.value = magic.from_file(self._list.value)
except NameError:
self._details.value = "File (run 'pip install python-magic' for more details)"
else:
self._details.value = "--"
def process_event(self, event):
# Do the key handling for this Frame.
if isinstance(event, KeyboardEvent):
if event.key_code in [ord('q'), ord('Q'), Screen.ctrl("c")]:
raise StopApplication("User quit")
# Now pass on to lower levels for normal handling of the event.
return super(DemoFrame, self).process_event(event)
def demo(screen, old_scene):
screen.play([Scene([DemoFrame(screen)], -1)], stop_on_resize=True, start_scene=old_scene)
last_scene = None
while True:
try:
Screen.wrapper(demo, catch_interrupt=False, arguments=[last_scene])
sys.exit(0)
except ResizeScreenError as e:
last_scene = e.scene
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