Ejemplo n.º 1
0
    def __init__(self,
                 title=None,
                 formatters=None,
                 bottom_toolbar=None,
                 style=None,
                 key_bindings=None,
                 file=None,
                 color_depth=None,
                 output=None,
                 input=None):
        assert formatters is None or (isinstance(formatters, list) and all(
            isinstance(fo, Formatter) for fo in formatters))
        assert style is None or isinstance(style, BaseStyle)
        assert key_bindings is None or isinstance(key_bindings, KeyBindings)

        self.title = title
        self.formatters = formatters or create_default_formatters()
        self.bottom_toolbar = bottom_toolbar
        self.counters = []
        self.style = style
        self.key_bindings = key_bindings

        # Note that we use __stderr__ as default error output, because that
        # works best with `patch_stdout`.
        self.color_depth = color_depth
        self.output = output or create_output(stdout=file or sys.__stderr__)
        self.input = input or get_default_input()

        self._thread = None

        self._loop = get_event_loop()
        self._previous_winch_handler = None
        self._has_sigwinch = False
Ejemplo n.º 2
0
Archivo: base.py Proyecto: Arrendi/rice
    def __init__(self,
                 title=None,
                 formatters=None,
                 bottom_toolbar=None,
                 style=None,
                 key_bindings=None,
                 file=None,
                 output=None,
                 input=None):
        assert formatters is None or (isinstance(formatters, list) and all(
            isinstance(fo, f.Formatter) for fo in formatters))
        assert style is None or isinstance(style, BaseStyle)
        assert key_bindings is None or isinstance(key_bindings, KeyBindings)

        self.title = title
        self.formatters = formatters or create_default_formatters()
        self.bottom_toolbar = bottom_toolbar
        self.counters = []
        self.style = style
        self.key_bindings = key_bindings

        self.output = output or create_output(stdout=file or sys.stderr)
        self.input = input or get_default_input()

        self._thread = None

        self._loop = get_event_loop()
        self._previous_winch_handler = None
        self._has_sigwinch = False
Ejemplo n.º 3
0
    def __init__(self,
                 editing_mode=EditingMode.EMACS,
                 history=None,
                 lexer=None,
                 style=None,
                 completer=None,
                 extra_key_bindings=None,
                 tempfile_suffix=None,
                 input=None,
                 output=None,
                 on_render=None):

        self.editing_mode = editing_mode
        self.history = history
        self.lexer = lexer
        self.style = None
        self.completer = completer
        self.extra_key_bindings = extra_key_bindings
        self.tempfile_suffix = tempfile_suffix
        if not is_windows():
            self.input = input or CustomVt100Input(sys.stdin)
        else:
            self.input = input or get_default_input()
        self.output = output or get_default_output()

        self.on_render = on_render

        self.create_layout()
        self.create_application()
Ejemplo n.º 4
0
    def __init__(self, title=None, formatters=None, bottom_toolbar=None,
                 style=None, key_bindings=None, file=None, color_depth=None,
                 output=None, input=None):
        assert formatters is None or (
            isinstance(formatters, list) and all(isinstance(fo, Formatter) for fo in formatters))
        assert style is None or isinstance(style, BaseStyle)
        assert key_bindings is None or isinstance(key_bindings, KeyBindings)

        self.title = title
        self.formatters = formatters or create_default_formatters()
        self.bottom_toolbar = bottom_toolbar
        self.counters = []
        self.style = style
        self.key_bindings = key_bindings

        # Note that we use __stderr__ as default error output, because that
        # works best with `patch_stdout`.
        self.color_depth = color_depth
        self.output = output or create_output(stdout=file or sys.__stderr__)
        self.input = input or get_default_input()

        self._thread = None

        self._loop = get_event_loop()
        self._previous_winch_handler = None
        self._has_sigwinch = False
Ejemplo n.º 5
0
    def __init__(self,
                 message='',
                 default='',
                 multiline=False,
                 wrap_lines=True,
                 is_password=False,
                 vi_mode=False,
                 editing_mode=EditingMode.EMACS,
                 complete_while_typing=True,
                 validate_while_typing=True,
                 enable_history_search=False,
                 search_ignore_case=False,
                 lexer=None,
                 enable_system_prompt=False,
                 enable_suspend=False,
                 enable_open_in_editor=False,
                 validator=None,
                 completer=None,
                 complete_in_thread=False,
                 reserve_space_for_menu=8,
                 complete_style=None,
                 auto_suggest=None,
                 style=None,
                 style_transformation=None,
                 swap_light_and_dark_colors=False,
                 color_depth=None,
                 include_default_pygments_style=True,
                 history=None,
                 clipboard=None,
                 prompt_continuation=None,
                 rprompt=None,
                 bottom_toolbar=None,
                 mouse_support=False,
                 input_processors=None,
                 key_bindings=None,
                 erase_when_done=False,
                 tempfile_suffix='.txt',
                 inputhook=None,
                 refresh_interval=0,
                 input=None,
                 output=None):
        assert style is None or isinstance(style, BaseStyle)
        assert style_transformation is None or isinstance(
            style, StyleTransformation)
        assert input_processors is None or isinstance(input_processors, list)
        assert key_bindings is None or isinstance(key_bindings,
                                                  KeyBindingsBase)

        # Defaults.
        output = output or get_default_output()
        input = input or get_default_input()

        history = history or InMemoryHistory()
        clipboard = clipboard or InMemoryClipboard()

        # Ensure backwards-compatibility, when `vi_mode` is passed.
        if vi_mode:
            editing_mode = EditingMode.VI

        # Store all settings in this class.
        self.input = input
        self.output = output

        # Store all settings in this class.
        for name in self._fields:
            if name not in ('editing_mode', ):
                value = locals()[name]
                setattr(self, name, value)

        # Create buffers, layout and Application.
        self.history = history
        self.default_buffer = self._create_default_buffer()
        self.search_buffer = self._create_search_buffer()
        self.layout = self._create_layout()
        self.app = self._create_application(editing_mode, erase_when_done)
Ejemplo n.º 6
0
    def __init__(self, layout=None,
                 style=None, include_default_pygments_style=True,
                 key_bindings=None, clipboard=None,
                 full_screen=False, color_depth=None,
                 mouse_support=False,

                 enable_page_navigation_bindings=None,  # Can be None, True or False.

                 paste_mode=False,
                 editing_mode=EditingMode.EMACS,
                 erase_when_done=False,
                 reverse_vi_search_direction=False,
                 min_redraw_interval=None,
                 max_render_postpone_time=0,

                 on_reset=None, on_invalidate=None,
                 before_render=None, after_render=None,

                 # I/O.
                 input=None, output=None):

        # If `enable_page_navigation_bindings` is not specified, enable it in
        # case of full screen applications only. This can be overridden by the user.
        if enable_page_navigation_bindings is None:
            enable_page_navigation_bindings = Condition(lambda: self.full_screen)

        paste_mode = to_filter(paste_mode)
        mouse_support = to_filter(mouse_support)
        reverse_vi_search_direction = to_filter(reverse_vi_search_direction)
        enable_page_navigation_bindings = to_filter(enable_page_navigation_bindings)
        include_default_pygments_style = to_filter(include_default_pygments_style)

        assert layout is None or isinstance(layout, Layout), 'Got layout: %r' % (layout, )
        assert key_bindings is None or isinstance(key_bindings, KeyBindingsBase)
        assert clipboard is None or isinstance(clipboard, Clipboard)
        assert isinstance(full_screen, bool)
        assert (color_depth is None or callable(color_depth) or
                color_depth in ColorDepth._ALL), 'Got color_depth: %r' % (color_depth, )
        assert isinstance(editing_mode, six.string_types)
        assert style is None or isinstance(style, BaseStyle)
        assert isinstance(erase_when_done, bool)
        assert min_redraw_interval is None or isinstance(min_redraw_interval, (float, int))
        assert max_render_postpone_time is None or isinstance(max_render_postpone_time, (float, int))

        assert on_reset is None or callable(on_reset)
        assert on_invalidate is None or callable(on_invalidate)
        assert before_render is None or callable(before_render)
        assert after_render is None or callable(after_render)

        assert output is None or isinstance(output, Output)
        assert input is None or isinstance(input, Input)

        self.style = style

        if layout is None:
            layout = create_dummy_layout()

        # Key bindings.
        self.key_bindings = key_bindings
        self._default_bindings = load_key_bindings()
        self._page_navigation_bindings = load_page_navigation_bindings()

        self.layout = layout
        self.clipboard = clipboard or InMemoryClipboard()
        self.full_screen = full_screen
        self._color_depth = color_depth
        self.mouse_support = mouse_support

        self.paste_mode = paste_mode
        self.editing_mode = editing_mode
        self.erase_when_done = erase_when_done
        self.reverse_vi_search_direction = reverse_vi_search_direction
        self.enable_page_navigation_bindings = enable_page_navigation_bindings
        self.min_redraw_interval = min_redraw_interval
        self.max_render_postpone_time = max_render_postpone_time

        # Events.
        self.on_invalidate = Event(self, on_invalidate)
        self.on_reset = Event(self, on_reset)
        self.before_render = Event(self, before_render)
        self.after_render = Event(self, after_render)

        # I/O.
        self.output = output or get_default_output()
        self.input = input or get_default_input()

        # List of 'extra' functions to execute before a Application.run.
        self.pre_run_callables = []

        self._is_running = False
        self.future = None

        #: Quoted insert. This flag is set if we go into quoted insert mode.
        self.quoted_insert = False

        #: Vi state. (For Vi key bindings.)
        self.vi_state = ViState()
        self.emacs_state = EmacsState()

        #: When to flush the input (For flushing escape keys.) This is important
        #: on terminals that use vt100 input. We can't distinguish the escape
        #: key from for instance the left-arrow key, if we don't know what follows
        #: after "\x1b". This little timer will consider "\x1b" to be escape if
        #: nothing did follow in this time span.
        #: This seems to work like the `ttimeoutlen` option in Vim.
        self.ttimeoutlen = .5  # Seconds.

        #: Like Vim's `timeoutlen` option. This can be `None` or a float.  For
        #: instance, suppose that we have a key binding AB and a second key
        #: binding A. If the uses presses A and then waits, we don't handle
        #: this binding yet (unless it was marked 'eager'), because we don't
        #: know what will follow. This timeout is the maximum amount of time
        #: that we wait until we call the handlers anyway. Pass `None` to
        #: disable this timeout.
        self.timeoutlen = 1.0

        #: The `Renderer` instance.
        # Make sure that the same stdout is used, when a custom renderer has been passed.
        self._merged_style = self._create_merged_style(include_default_pygments_style)

        self.renderer = Renderer(
            self._merged_style,
            self.output,
            full_screen=full_screen,
            mouse_support=mouse_support,
            cpr_not_supported_callback=self.cpr_not_supported_callback)

        #: Render counter. This one is increased every time the UI is rendered.
        #: It can be used as a key for caching certain information during one
        #: rendering.
        self.render_counter = 0

        # Invalidate flag. When 'True', a repaint has been scheduled.
        self._invalidated = False
        self._invalidate_events = []  # Collection of 'invalidate' Event objects.
        self._last_redraw_time = 0  # Unix timestamp of last redraw. Used when
                                    # `min_redraw_interval` is given.

        #: The `InputProcessor` instance.
        self.key_processor = KeyProcessor(_CombinedRegistry(self))

        # If `run_in_terminal` was called. This will point to a `Future` what will be
        # set at the point when the previous run finishes.
        self._running_in_terminal = False
        self._running_in_terminal_f = None

        # Trigger initialize callback.
        self.reset()
    def __init__(self, layout=None,
                 style=None,
                 include_default_pygments_style=True,
                 style_transformation=None,
                 key_bindings=None, clipboard=None,
                 full_screen=False, color_depth=None,
                 mouse_support=False,

                 enable_page_navigation_bindings=None,  # Can be None, True or False.

                 paste_mode=False,
                 editing_mode=EditingMode.EMACS,
                 erase_when_done=False,
                 reverse_vi_search_direction=False,
                 min_redraw_interval=None,
                 max_render_postpone_time=0,

                 on_reset=None, on_invalidate=None,
                 before_render=None, after_render=None,

                 # I/O.
                 input=None, output=None):

        # If `enable_page_navigation_bindings` is not specified, enable it in
        # case of full screen applications only. This can be overridden by the user.
        if enable_page_navigation_bindings is None:
            enable_page_navigation_bindings = Condition(lambda: self.full_screen)

        paste_mode = to_filter(paste_mode)
        mouse_support = to_filter(mouse_support)
        reverse_vi_search_direction = to_filter(reverse_vi_search_direction)
        enable_page_navigation_bindings = to_filter(enable_page_navigation_bindings)
        include_default_pygments_style = to_filter(include_default_pygments_style)

        assert layout is None or isinstance(layout, Layout), 'Got layout: %r' % (layout, )
        assert key_bindings is None or isinstance(key_bindings, KeyBindingsBase)
        assert clipboard is None or isinstance(clipboard, Clipboard)
        assert isinstance(full_screen, bool)
        assert (color_depth is None or callable(color_depth) or
                color_depth in ColorDepth._ALL), 'Got color_depth: %r' % (color_depth, )
        assert isinstance(editing_mode, six.string_types)
        assert style is None or isinstance(style, BaseStyle)
        assert style_transformation is None or isinstance(style_transformation, StyleTransformation)
        assert isinstance(erase_when_done, bool)
        assert min_redraw_interval is None or isinstance(min_redraw_interval, (float, int))
        assert max_render_postpone_time is None or isinstance(max_render_postpone_time, (float, int))

        assert on_reset is None or callable(on_reset)
        assert on_invalidate is None or callable(on_invalidate)
        assert before_render is None or callable(before_render)
        assert after_render is None or callable(after_render)

        assert output is None or isinstance(output, Output)
        assert input is None or isinstance(input, Input)

        if layout is None:
            layout = create_dummy_layout()

        if style_transformation is None:
            style_transformation = DummyStyleTransformation()

        self.style = style
        self.style_transformation = style_transformation

        # Key bindings.
        self.key_bindings = key_bindings
        self._default_bindings = load_key_bindings()
        self._page_navigation_bindings = load_page_navigation_bindings()

        self.layout = layout
        self.clipboard = clipboard or InMemoryClipboard()
        self.full_screen = full_screen
        self._color_depth = color_depth
        self.mouse_support = mouse_support

        self.paste_mode = paste_mode
        self.editing_mode = editing_mode
        self.erase_when_done = erase_when_done
        self.reverse_vi_search_direction = reverse_vi_search_direction
        self.enable_page_navigation_bindings = enable_page_navigation_bindings
        self.min_redraw_interval = min_redraw_interval
        self.max_render_postpone_time = max_render_postpone_time

        # Events.
        self.on_invalidate = Event(self, on_invalidate)
        self.on_reset = Event(self, on_reset)
        self.before_render = Event(self, before_render)
        self.after_render = Event(self, after_render)

        # I/O.
        self.output = output or get_default_output()
        self.input = input or get_default_input()

        # List of 'extra' functions to execute before a Application.run.
        self.pre_run_callables = []

        self._is_running = False
        self.future = None

        #: Quoted insert. This flag is set if we go into quoted insert mode.
        self.quoted_insert = False

        #: Vi state. (For Vi key bindings.)
        self.vi_state = ViState()
        self.emacs_state = EmacsState()

        #: When to flush the input (For flushing escape keys.) This is important
        #: on terminals that use vt100 input. We can't distinguish the escape
        #: key from for instance the left-arrow key, if we don't know what follows
        #: after "\x1b". This little timer will consider "\x1b" to be escape if
        #: nothing did follow in this time span.
        #: This seems to work like the `ttimeoutlen` option in Vim.
        self.ttimeoutlen = .5  # Seconds.

        #: Like Vim's `timeoutlen` option. This can be `None` or a float.  For
        #: instance, suppose that we have a key binding AB and a second key
        #: binding A. If the uses presses A and then waits, we don't handle
        #: this binding yet (unless it was marked 'eager'), because we don't
        #: know what will follow. This timeout is the maximum amount of time
        #: that we wait until we call the handlers anyway. Pass `None` to
        #: disable this timeout.
        self.timeoutlen = 1.0

        #: The `Renderer` instance.
        # Make sure that the same stdout is used, when a custom renderer has been passed.
        self._merged_style = self._create_merged_style(include_default_pygments_style)

        self.renderer = Renderer(
            self._merged_style,
            self.output,
            self.input,
            full_screen=full_screen,
            mouse_support=mouse_support,
            cpr_not_supported_callback=self.cpr_not_supported_callback)

        #: Render counter. This one is increased every time the UI is rendered.
        #: It can be used as a key for caching certain information during one
        #: rendering.
        self.render_counter = 0

        # Invalidate flag. When 'True', a repaint has been scheduled.
        self._invalidated = False
        self._invalidate_events = []  # Collection of 'invalidate' Event objects.
        self._last_redraw_time = 0  # Unix timestamp of last redraw. Used when
                                    # `min_redraw_interval` is given.

        #: The `InputProcessor` instance.
        self.key_processor = KeyProcessor(_CombinedRegistry(self))

        # If `run_in_terminal` was called. This will point to a `Future` what will be
        # set at the point when the previous run finishes.
        self._running_in_terminal = False
        self._running_in_terminal_f = None

        # Trigger initialize callback.
        self.reset()
Ejemplo n.º 8
0
    def __init__(
            self,
            layout=None,
            style=None,
            key_bindings=None,
            clipboard=None,
            full_screen=False,
            mouse_support=False,
            enable_page_navigation_bindings=False,
            paste_mode=False,
            editing_mode=EditingMode.EMACS,
            erase_when_done=False,
            reverse_vi_search_direction=False,
            min_redraw_interval=None,
            max_render_postpone_time=0,
            on_reset=None,
            on_render=None,
            on_invalidate=None,

            # I/O.
            input=None,
            output=None):

        paste_mode = to_filter(paste_mode)
        mouse_support = to_filter(mouse_support)
        reverse_vi_search_direction = to_filter(reverse_vi_search_direction)
        enable_page_navigation_bindings = to_filter(
            enable_page_navigation_bindings)

        assert layout is None or isinstance(layout, Layout)
        assert key_bindings is None or isinstance(key_bindings,
                                                  KeyBindingsBase)
        assert clipboard is None or isinstance(clipboard, Clipboard)
        assert isinstance(full_screen, bool)
        assert isinstance(editing_mode, six.string_types)
        assert style is None or isinstance(style, BaseStyle)
        assert isinstance(erase_when_done, bool)
        assert min_redraw_interval is None or isinstance(
            min_redraw_interval, (float, int))
        assert max_render_postpone_time is None or isinstance(
            max_render_postpone_time, (float, int))

        assert on_reset is None or callable(on_reset)
        assert on_render is None or callable(on_render)
        assert on_invalidate is None or callable(on_invalidate)

        assert output is None or isinstance(output, Output)
        assert input is None or isinstance(input, Input)

        self.style = style

        if layout is None:
            layout = create_dummy_layout()

        # Key bindings.
        self.key_bindings = key_bindings
        self._default_bindings = load_key_bindings()
        self._page_navigation_bindings = load_page_navigation_bindings()

        self.layout = layout
        self.clipboard = clipboard or InMemoryClipboard()
        self.full_screen = full_screen
        self.mouse_support = mouse_support

        self.paste_mode = paste_mode
        self.editing_mode = editing_mode
        self.erase_when_done = erase_when_done
        self.reverse_vi_search_direction = reverse_vi_search_direction
        self.enable_page_navigation_bindings = enable_page_navigation_bindings
        self.min_redraw_interval = min_redraw_interval
        self.max_render_postpone_time = max_render_postpone_time

        # Events.
        self.on_invalidate = Event(self, on_invalidate)
        self.on_render = Event(self, on_render)
        self.on_reset = Event(self, on_reset)

        # I/O.
        self.output = output or get_default_output()
        self.input = input or get_default_input()

        # List of 'extra' functions to execute before a Application.run.
        self.pre_run_callables = []

        self._is_running = False
        self.future = None

        #: Quoted insert. This flag is set if we go into quoted insert mode.
        self.quoted_insert = False

        #: Vi state. (For Vi key bindings.)
        self.vi_state = ViState()

        #: When to flush the input (For flushing escape keys.) This is important
        #: on terminals that use vt100 input. We can't distinguish the escape
        #: key from for instance the left-arrow key, if we don't know what follows
        #: after "\x1b". This little timer will consider "\x1b" to be escape if
        #: nothing did follow in this time span.
        #: This seems to work like the `ttimeoutlen` option in Vim.
        self.input_timeout = .5

        #: The `Renderer` instance.
        # Make sure that the same stdout is used, when a custom renderer has been passed.
        self._merged_style = merge_styles([
            default_style(),
            DynamicStyle(lambda: self.style),
        ])

        self.renderer = Renderer(
            self._merged_style,
            self.output,
            full_screen=full_screen,
            mouse_support=mouse_support,
            cpr_not_supported_callback=self.cpr_not_supported_callback)

        #: Render counter. This one is increased every time the UI is rendered.
        #: It can be used as a key for caching certain information during one
        #: rendering.
        self.render_counter = 0

        # Invalidate flag. When 'True', a repaint has been scheduled.
        self._invalidated = False
        self._invalidate_events = [
        ]  # Collection of 'invalidate' Event objects.
        self._last_redraw_time = 0  # Unix timestamp of last redraw. Used when
        # `min_redraw_interval` is given.

        #: The `InputProcessor` instance.
        self.key_processor = KeyProcessor(_CombinedRegistry(self))

        # If `run_in_terminal` was called. This will point to a `Future` what will be
        # set at the point whene the previous run finishes.
        self._running_in_terminal = False
        self._running_in_terminal_f = None

        # Trigger initialize callback.
        self.reset()
Ejemplo n.º 9
0
    def __init__(self,
                 message='',
                 default='',
                 multiline=False,
                 wrap_lines=True,
                 is_password=False,
                 vi_mode=False,
                 editing_mode=EditingMode.EMACS,
                 complete_while_typing=True,
                 validate_while_typing=True,
                 enable_history_search=False,
                 lexer=None,
                 enable_system_prompt=False,
                 enable_suspend=False,
                 enable_open_in_editor=False,
                 validator=None,
                 completer=None,
                 reserve_space_for_menu=8,
                 complete_style=None,
                 auto_suggest=None,
                 style=None,
                 history=None,
                 clipboard=None,
                 prompt_continuation=None,
                 rprompt=None,
                 bottom_toolbar=None,
                 mouse_support=False,
                 extra_input_processor=None,
                 extra_key_bindings=None,
                 erase_when_done=False,
                 tempfile_suffix='.txt',
                 refresh_interval=0,
                 input=None,
                 output=None):
        assert style is None or isinstance(style, BaseStyle)
        assert extra_input_processor is None or isinstance(
            extra_input_processor, Processor)
        assert extra_key_bindings is None or isinstance(
            extra_key_bindings, KeyBindingsBase)

        # Defaults.
        output = output or get_default_output()
        input = input or get_default_input()
        extra_input_processor = extra_input_processor

        history = history or InMemoryHistory()
        clipboard = clipboard or InMemoryClipboard()

        # Ensure backwards-compatibility, when `vi_mode` is passed.
        if vi_mode:
            editing_mode = EditingMode.VI

        # Store all settings in this class.
        self.input = input
        self.output = output

        # Store all settings in this class.
        for name in self._fields:
            if name not in ('editing_mode', ):
                value = locals()[name]
                setattr(self, name, value)

        self.app, self._default_buffer, self._default_buffer_control = \
            self._create_application(editing_mode, erase_when_done)
    def __init__(
            self,
            message='',
            multiline=False,
            wrap_lines=True,
            is_password=False,
            vi_mode=False,
            editing_mode=EditingMode.EMACS,
            complete_while_typing=True,
            validate_while_typing=True,
            enable_history_search=False,
            search_ignore_case=False,
            lexer=None,
            enable_system_prompt=False,
            enable_suspend=False,
            enable_open_in_editor=False,
            validator=None,
            completer=None,
            complete_in_thread=False,
            reserve_space_for_menu=8,
            complete_style=None,
            auto_suggest=None,
            style=None,
            style_transformation=None,
            swap_light_and_dark_colors=False,
            color_depth=None,
            include_default_pygments_style=True,
            history=None,
            clipboard=None,
            prompt_continuation=None,
            rprompt=None,
            bottom_toolbar=None,
            mouse_support=False,
            input_processors=None,
            key_bindings=None,
            erase_when_done=False,
            tempfile_suffix='.txt',
            inputhook=None,

            refresh_interval=0,
            input=None,
            output=None):
        assert style is None or isinstance(style, BaseStyle)
        assert style_transformation is None or isinstance(style_transformation, StyleTransformation)
        assert input_processors is None or isinstance(input_processors, list)
        assert key_bindings is None or isinstance(key_bindings, KeyBindingsBase)

        # Defaults.
        output = output or get_default_output()
        input = input or get_default_input()

        history = history or InMemoryHistory()
        clipboard = clipboard or InMemoryClipboard()

        # Ensure backwards-compatibility, when `vi_mode` is passed.
        if vi_mode:
            editing_mode = EditingMode.VI

        # Store all settings in this class.
        self.input = input
        self.output = output

        # Store all settings in this class.
        for name in self._fields:
            if name not in ('editing_mode', ):
                value = locals()[name]
                setattr(self, name, value)

        # Create buffers, layout and Application.
        self.history = history
        self.default_buffer = self._create_default_buffer()
        self.search_buffer = self._create_search_buffer()
        self.layout = self._create_layout()
        self.app = self._create_application(editing_mode, erase_when_done)