71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
#!/usr/bin/env python
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import PySimpleGUI as sg
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'''
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A chatbot with history
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Scroll up and down through prior commands using the arrow keys
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Special keyboard keys:
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Up arrow - scroll up in commands
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Down arrow - scroll down in commands
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Escape - clear current command
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Control C - exit form
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'''
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def ChatBotWithHistory():
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# ------- Make a new Window ------- #
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# give our form a spiffy set of colors
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sg.change_look_and_feel('GreenTan')
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layout = [[sg.Text('Your output will go here', size=(40, 1))],
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[sg.Output(size=(127, 30), font=('Helvetica 10'))],
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[sg.Text('Command History'),
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sg.Text('', size=(20, 3), key='history')],
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[sg.ML(size=(85, 5), enter_submits=True, key='query', do_not_clear=False),
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sg.Button('SEND', button_color=(sg.YELLOWS[0], sg.BLUES[0]), bind_return_key=True),
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sg.Button('EXIT', button_color=(sg.YELLOWS[0], sg.GREENS[0]))]]
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window = sg.Window('Chat window with history', layout,
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default_element_size=(30, 2),
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font=('Helvetica', ' 13'),
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default_button_element_size=(8, 2),
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return_keyboard_events=True)
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# ---===--- Loop taking in user input and using it --- #
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command_history = []
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history_offset = 0
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while True:
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event, value = window.read()
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if event == 'SEND':
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query = value['query'].rstrip()
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# EXECUTE YOUR COMMAND HERE
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print('The command you entered was {}'.format(query))
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command_history.append(query)
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history_offset = len(command_history)-1
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# manually clear input because keyboard events blocks clear
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window['query'].update('')
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window['history'].update('\n'.join(command_history[-3:]))
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elif event in (None, 'EXIT'): # quit if exit event or X
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break
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elif 'Up' in event and len(command_history):
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command = command_history[history_offset]
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# decrement is not zero
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history_offset -= 1 * (history_offset > 0)
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window['query'].update(command)
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elif 'Down' in event and len(command_history):
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# increment up to end of list
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history_offset += 1 * (history_offset < len(command_history)-1)
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command = command_history[history_offset]
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window['query'].update(command)
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elif 'Escape' in event:
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window['query'].update('')
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ChatBotWithHistory()
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