def create_buffer_window(source_info):
"""
Window for the main content.
"""
pager = source_info.pager
input_processors = [
ConditionalProcessor(
processor=_EscapeProcessor(source_info),
filter=Condition(lambda: not bool(source_info.source.lexer)),
),
TabsProcessor(),
ConditionalProcessor(
processor=HighlightSearchProcessor(),
filter=Condition(lambda: pager.highlight_search),
),
ConditionalProcessor(
processor=HighlightIncrementalSearchProcessor(),
filter=Condition(lambda: pager.highlight_search),
),
HighlightSelectionProcessor(),
HighlightMatchingBracketProcessor(),
]
return Window(
always_hide_cursor=True,
content=BufferControl(
buffer=source_info.buffer,
lexer=source_info.source.lexer,
input_processors=input_processors,
include_default_input_processors=False,
preview_search=True,
search_buffer_control=pager.layout.search_toolbar.control))
def get_buffer_window(self):
" Return the Container object according to which Buffer/Source is visible. "
source = self.pager.source
if source not in self._bodies:
input_processors = [
ConditionalProcessor(
processor=_EscapeProcessor(self.pager),
filter=Condition(
lambda cli: not bool(self.pager.source.lexer)),
),
TabsProcessor(),
HighlightSelectionProcessor(),
ConditionalProcessor(
processor=HighlightSearchProcessor(preview_search=True),
filter=Condition(lambda cli: self.pager.highlight_search),
),
HighlightMatchingBracketProcessor(),
]
buffer_window = Window(
always_hide_cursor=True,
content=BufferControl(
buffer_name=self.pager.source_info[source].buffer_name,
lexer=source.lexer,
input_processors=input_processors))
self._bodies[source] = buffer_window
return self._bodies[source]
def create_python_input_window():
def menu_position(cli):
"""
When there is no autocompletion menu to be shown, and we have a signature,
set the pop-up position at `bracket_start`.
"""
b = cli.buffers['default']
if b.complete_state is None and settings.signatures:
row, col = settings.signatures[0].bracket_start
index = b.document.translate_row_col_to_index(row - 1, col)
return index
return Window(
BufferControl(
buffer_name=DEFAULT_BUFFER,
lexer=lexer,
show_line_numbers=ShowLineNumbersFilter(settings, 'default'),
input_processors=[
# Show matching parentheses, but only while editing.
ConditionalProcessor(
processor=HighlightMatchingBracketProcessor(chars='[](){}'),
filter=HasFocus(DEFAULT_BUFFER) & ~IsDone()),
HighlightSearchProcessor(preview_search=Always()),
HighlightSelectionProcessor()] + extra_buffer_processors,
menu_position=menu_position,
# Make sure that we always see the result of an reverse-i-search:
preview_search=Always(),
),
# As long as we're editing, prefer a minimal height of 6.
get_height=(lambda cli: (None if cli.is_done else D(min=6))),
)
def create_default_layout(message='', lexer=None, is_password=False,
reserve_space_for_menu=False, get_bottom_toolbar_tokens=None):
"""
Generate default layout.
"""
assert get_bottom_toolbar_tokens is None or callable(get_bottom_toolbar_tokens)
# Create processors list.
input_processors = [HighlightSearchProcessor(), HighlightSelectionProcessor()]
if is_password:
input_processors.extend([PasswordProcessor(), DefaultPrompt(message)])
else:
input_processors.append(DefaultPrompt(message))
# Create bottom toolbar.
if get_bottom_toolbar_tokens:
toolbars = [Window(TokenListControl(get_bottom_toolbar_tokens,
default_char=Char(' ', Token.Toolbar)),
height=LayoutDimension.exact(1),
filter=~IsDone())]
else:
toolbars = []
def get_height(cli):
# If there is an autocompletion menu to be shown, make sure that our
# layout has at least a minimal height in order to display it.
if reserve_space_for_menu and not cli.is_done:
return LayoutDimension(min=8)
else:
return LayoutDimension()
# Create and return Layout instance.
return HSplit([
FloatContainer(
Window(
BufferControl(
input_processors=input_processors,
lexer=lexer,
# Enable preview_search, we want to have immediate feedback
# in reverse-i-search mode.
preview_search=Always()),
get_height=get_height,
),
[
Float(xcursor=True,
ycursor=True,
content=CompletionsMenu(max_height=16,
extra_filter=HasFocus(DEFAULT_BUFFER)))
]
),
ValidationToolbar(),
SystemToolbar(),
] + toolbars)
def create_python_input_window():
def menu_position(cli):
"""
When there is no autocompletion menu to be shown, and we have a signature,
set the pop-up position at `bracket_start`.
"""
b = cli.buffers[DEFAULT_BUFFER]
if b.complete_state is None and python_input.signatures:
row, col = python_input.signatures[0].bracket_start
index = b.document.translate_row_col_to_index(row - 1, col)
return index
return Window(
BufferControl(
buffer_name=DEFAULT_BUFFER,
lexer=lexer,
input_processors=[
ConditionalProcessor(
processor=HighlightSearchProcessor(
preview_search=True),
filter=HasFocus(SEARCH_BUFFER),
),
HighlightSelectionProcessor(),
DisplayMultipleCursors(DEFAULT_BUFFER),
# Show matching parentheses, but only while editing.
ConditionalProcessor(
processor=HighlightMatchingBracketProcessor(
chars='[](){}'),
filter=HasFocus(DEFAULT_BUFFER) & ~IsDone()
& Condition(lambda cli: python_input.
highlight_matching_parenthesis)),
ConditionalProcessor(processor=AppendAutoSuggestion(),
filter=~IsDone())
] + extra_buffer_processors,
menu_position=menu_position,
# Make sure that we always see the result of an reverse-i-search:
preview_search=True,
),
left_margins=[PythonPromptMargin(python_input)],
# Scroll offsets. The 1 at the bottom is important to make sure the
# cursor is never below the "Press [Meta+Enter]" message which is a float.
scroll_offsets=ScrollOffsets(bottom=1, left=4, right=4),
# As long as we're editing, prefer a minimal height of 6.
get_height=(lambda cli:
(None if cli.is_done or python_input.
show_exit_confirmation else input_buffer_height)),
wrap_lines=Condition(lambda cli: python_input.wrap_lines),
)
def _create_buffer_control(self, editor_buffer):
"""
Create a new BufferControl for a given location.
"""
@Condition
def preview_search():
return self.editor.incsearch
input_processors = [
# Processor for visualising spaces. (should come before the
# selection processor, otherwise, we won't see these spaces
# selected.)
ConditionalProcessor(
ShowTrailingWhiteSpaceProcessor(),
Condition(lambda: self.editor.display_unprintable_characters)),
# Replace tabs by spaces.
TabsProcessor(
tabstop=(lambda: self.editor.tabstop),
char1=(lambda: '|'
if self.editor.display_unprintable_characters else ' '),
char2=(lambda: _try_char('\u2508', '.',
get_app().output.encoding())
if self.editor.display_unprintable_characters else ' '),
),
# Reporting of errors, for Pyflakes.
ReportingProcessor(editor_buffer),
HighlightSelectionProcessor(),
ConditionalProcessor(
HighlightSearchProcessor(),
Condition(lambda: self.editor.highlight_search)),
ConditionalProcessor(
HighlightIncrementalSearchProcessor(),
Condition(lambda: self.editor.highlight_search)
& preview_search),
HighlightMatchingBracketProcessor(),
DisplayMultipleCursors(),
]
return BufferControl(lexer=DocumentLexer(editor_buffer),
include_default_input_processors=False,
input_processors=input_processors,
buffer=editor_buffer.buffer,
preview_search=preview_search,
search_buffer_control=self.search_control,
focus_on_click=True)
def _create_buffer_control(self, editor_buffer):
"""
Create a new BufferControl for a given filename.
"""
filename = editor_buffer.filename
buffer_name = editor_buffer.buffer_name
@Condition
def preview_search(cli):
return self.editor.incsearch
input_processors = [
# Highlighting of the search.
ConditionalProcessor(
HighlightSearchProcessor(preview_search=preview_search),
Condition(lambda cli: self.editor.highlight_search)),
# Processor for visualising spaces. (should come before the
# selection processor, otherwise, we won't see these spaces
# selected.)
ConditionalProcessor(
ShowTrailingWhiteSpaceProcessor(),
Condition(
lambda cli: self.editor.display_unprintable_characters)),
# Highlight selection.
HighlightSelectionProcessor(),
# Highlight matching parentheses.
HighlightMatchingBracketProcessor(),
# Reporting of errors, for Pyflakes.
ReportingProcessor(editor_buffer),
# Replace tabs by spaces.
TabsProcessor(self.editor)
]
return BufferControl(show_line_numbers=Condition(
lambda cli: self.editor.show_line_numbers),
lexer=DocumentLexer(editor_buffer),
input_processors=input_processors,
buffer_name=buffer_name,
preview_search=preview_search)
def _create_buffer_control(self, editor_buffer):
"""
Create a new BufferControl for a given location.
"""
buffer_name = editor_buffer.buffer_name
@Condition
def preview_search(cli):
return self.editor.incsearch
input_processors = [
# Processor for visualising spaces. (should come before the
# selection processor, otherwise, we won't see these spaces
# selected.)
ConditionalProcessor(
ShowTrailingWhiteSpaceProcessor(),
Condition(
lambda cli: self.editor.display_unprintable_characters)),
# Replace tabs by spaces.
TabsProcessor(
tabstop=Integer.from_callable(lambda: self.editor.tabstop),
get_char1=(
lambda cli: '|'
if self.editor.display_unprintable_characters else ' '),
get_char2=(
lambda cli: '\u2508'
if self.editor.display_unprintable_characters else ' '),
),
# Reporting of errors, for Pyflakes.
ReportingProcessor(editor_buffer),
HighlightSelectionProcessor(),
ConditionalProcessor(
HighlightSearchProcessor(preview_search=preview_search),
Condition(lambda cli: self.editor.highlight_search)),
HighlightMatchingBracketProcessor(),
]
return BufferControl(lexer=DocumentLexer(editor_buffer),
input_processors=input_processors,
buffer_name=buffer_name,
preview_search=preview_search,
focus_on_click=True)
def __init__(self, shell_ctx):
self.shell_ctx = shell_ctx
@Condition
def show_default(_):
return self.shell_ctx.is_showing_default
@Condition
def show_symbol(_):
return self.shell_ctx.is_symbols
@Condition
def show_progress(_):
progress = get_progress_message()
done = get_done()
return progress != '' and not done
@Condition
def has_default_scope(_):
return self.shell_ctx.default_command == ''
self.has_default_scope = has_default_scope
self.show_default = show_default
self.show_symbol = show_symbol
self.show_progress = show_progress
# TODO fix this somehow
self.input_processors = [
ConditionalProcessor(
# By default, only highlight search when the search
# input has the focus. (Note that this doesn't mean
# there is no search: the Vi 'n' binding for instance
# still allows to jump to the next match in
# navigation mode.)
HighlightSearchProcessor(preview_search=Always()),
HasFocus(SEARCH_BUFFER)),
HighlightSelectionProcessor(),
ConditionalProcessor(
AppendAutoSuggestion(),
HasFocus(DEFAULT_BUFFER) & self.has_default_scope)
]
def create_layout(python_input, history_mapping):
"""
Create and return a `Container` instance for the history
application.
"""
processors = [
HighlightSearchProcessor(preview_search=True),
HighlightSelectionProcessor()
]
help_window = create_popup_window(
title='History Help',
body=Window(content=BufferControl(buffer_name=HELP_BUFFER,
default_char=Char(token=Token),
lexer=PygmentsLexer(RstLexer),
input_processors=processors),
right_margins=[ScrollbarMargin()],
scroll_offsets=ScrollOffsets(top=2, bottom=2)))
return HSplit([
# Top title bar.
TokenListToolbar(get_tokens=_get_top_toolbar_tokens,
align_center=True,
default_char=Char(' ', Token.Toolbar.Status)),
FloatContainer(
content=VSplit([
# Left side: history.
Window(content=BufferControl(buffer_name=HISTORY_BUFFER,
lexer=PygmentsLexer(PythonLexer),
input_processors=processors),
wrap_lines=False,
left_margins=[HistoryMargin(history_mapping)],
scroll_offsets=ScrollOffsets(top=2, bottom=2)),
# Separator.
Window(width=D.exact(1),
content=FillControl(BORDER.LIGHT_VERTICAL,
token=Token.Separator)),
# Right side: result.
Window(
content=BufferControl(buffer_name=DEFAULT_BUFFER,
input_processors=processors +
[GrayExistingText(history_mapping)],
lexer=PygmentsLexer(PythonLexer)),
wrap_lines=False,
left_margins=[ResultMargin(history_mapping)],
scroll_offsets=ScrollOffsets(top=2, bottom=2)),
]),
floats=[
# Help text as a float.
Float(
width=60,
top=3,
bottom=2,
content=ConditionalContainer(
# (We use InFocusStack, because it's possible to search
# through the help text as well, and at that point the search
# buffer has the focus.)
content=help_window,
filter=InFocusStack(HELP_BUFFER))),
]),
# Bottom toolbars.
ArgToolbar(),
SearchToolbar(),
TokenListToolbar(get_tokens=partial(_get_bottom_toolbar_tokens,
python_input=python_input),
default_char=Char(' ', Token.Toolbar.Status)),
])
def __init__(self,
text='',
multiline=True,
password=False,
lexer=None,
completer=None,
accept_handler=None,
focusable=True,
wrap_lines=True,
read_only=False,
width=None,
height=None,
dont_extend_height=False,
dont_extend_width=False,
line_numbers=False,
scrollbar=False,
style='',
input_processor=None,
search_field=None,
preview_search=True,
prompt=''):
assert isinstance(text, six.text_type)
assert search_field is None or isinstance(search_field, SearchToolbar)
if search_field is None:
search_control = None
elif isinstance(search_field, SearchToolbar):
search_control = search_field.control
self.buffer = Buffer(
document=Document(text, 0),
multiline=multiline,
read_only=read_only,
completer=completer,
complete_while_typing=True,
accept_handler=lambda buff: accept_handler and accept_handler())
self.control = BufferControl(
buffer=self.buffer,
lexer=lexer,
input_processor=merge_processors([
ConditionalProcessor(processor=PasswordProcessor(),
filter=to_filter(password)),
HighlightSearchProcessor(preview_search=preview_search),
HighlightSelectionProcessor(),
DisplayMultipleCursors(),
BeforeInput(prompt, style='class:text-area.prompt'),
]),
search_buffer_control=search_control,
preview_search=preview_search,
focusable=focusable)
if multiline:
if scrollbar:
right_margins = [ScrollbarMargin(display_arrows=True)]
else:
right_margins = []
if line_numbers:
left_margins = [NumberedMargin()]
else:
left_margins = []
else:
wrap_lines = False # Never wrap for single line input.
height = D.exact(1)
left_margins = []
right_margins = []
style = 'class:text-area ' + style
self.window = Window(height=height,
width=width,
dont_extend_height=dont_extend_height,
dont_extend_width=dont_extend_width,
content=self.control,
style=style,
wrap_lines=wrap_lines,
left_margins=left_margins,
right_margins=right_margins)
# pylint: disable=too-few-public-methods
class HasDefaultScope(Filter):
""" if there is a scope on the input """
def __call__(self, *a, **kw):
return DEFAULT_COMMAND == ""
# TODO fix this somehow
input_processors = [
ConditionalProcessor(
# By default, only highlight search when the search
# input has the focus. (Note that this doesn't mean
# there is no search: the Vi 'n' binding for instance
# still allows to jump to the next match in
# navigation mode.)
HighlightSearchProcessor(preview_search=Always()),
HasFocus(SEARCH_BUFFER)),
HighlightSelectionProcessor(),
ConditionalProcessor(
AppendAutoSuggestion(), HasFocus(DEFAULT_BUFFER) & HasDefaultScope()),
]
# pylint: disable=too-few-public-methods
class ShowDefault(Filter):
""" toggle on and off seeing the default """
def __init__(self, shell_ctx):
self.shell_ctx = shell_ctx
def __call__(self, *a, **kw):
return self.shell_ctx.is_showing_default
def create_layout(self):
# Create functions that will dynamically split the prompt. (If we have
# a multiline prompt.)
has_before_fragments, get_prompt_text_1, get_prompt_text_2 = \
_split_multiline_prompt(self.formatted_message)
default_buffer = ModalBuffer(
name=DEFAULT_BUFFER,
complete_while_typing=Condition(
lambda: self.complete_while_typing),
completer=DynamicCompleter(lambda: self.completer),
history=self.history,
get_tempfile_suffix=lambda: self.tempfile_suffix)
search_buffer = Buffer(name=SEARCH_BUFFER)
search_toolbar = SearchToolbar(search_buffer)
input_processor = merge_processors([
ConditionalProcessor(HighlightSearchProcessor(preview_search=True),
has_focus(search_buffer)),
HighlightSelectionProcessor(),
HighlightMatchingBracketProcessor(),
DisplayMultipleCursors()
])
default_buffer_control = BufferControl(
buffer=default_buffer,
search_buffer_control=search_toolbar.control,
input_processor=input_processor,
lexer=DynamicLexer(lambda: self.lexer),
preview_search=True)
def get_default_buffer_control_height():
# If there is an autocompletion menu to be shown, make sure that our
# layout has at least a minimal height in order to display it.
space = self.reserve_space_for_menu
if space and not get_app().is_done:
buff = default_buffer
if buff.complete_while_typing(
) or buff.complete_state is not None:
return Dimension(min=space)
return Dimension()
def get_continuation(width):
prompt_continuation = self.prompt_continuation
if callable(prompt_continuation):
prompt_continuation = prompt_continuation(width)
return to_formatted_text(prompt_continuation,
style='class:prompt-continuation')
default_buffer_window = Window(
default_buffer_control,
height=get_default_buffer_control_height,
left_margins=[PromptMargin(get_prompt_text_2, get_continuation)],
wrap_lines=True)
def get_arg_text():
arg = self.app.key_processor.arg
if arg == '-':
arg = '-1'
return [('class:arg-toolbar', 'Repeat: '),
('class:arg-toolbar.text', arg)]
# Build the layout.
layout = HSplit([
# The main input, with completion menus floating on top of it.
FloatContainer(
HSplit([
ConditionalContainer(
Window(FormattedTextControl(get_prompt_text_1),
dont_extend_height=True),
Condition(has_before_fragments)),
default_buffer_window,
]),
[
# Completion menus.
Float(xcursor=True,
ycursor=True,
content=MultiColumnCompletionsMenu(
show_meta=True,
extra_filter=has_focus(default_buffer)))
]),
ConditionalContainer(
Window(FormattedTextControl(get_arg_text), height=1), has_arg),
search_toolbar
])
return Layout(layout, default_buffer_window)
def create_layout(buffer,
lexer=None,
reserve_space_for_menu=8,
get_prompt_tokens=None,
get_bottom_toolbar_tokens=None,
extra_input_processors=None,
multiline=False,
wrap_lines=True):
"""
Creates a custom `Layout` for the Crash input REPL
This layout includes:
* a bottom left-aligned session toolbar container
* a bottom right-aligned side-bar container
+-------------------------------------------+
| cr> select 1; |
| |
| |
+-------------------------------------------+
| bottom_toolbar_tokens sidebar_tokens |
+-------------------------------------------+
"""
input_processors = [
ConditionalProcessor(
# Highlight the reverse-i-search buffer
HighlightSearchProcessor(),
has_focus(SEARCH_BUFFER)),
] + (extra_input_processors or [])
lexer = PygmentsLexer(lexer, sync_from_start=True)
sidebar_token = [
('class:status-toolbar', "[ctrl+d]"),
('class:status-toolbar.text', " Exit")
]
def _get_buffer_control_height(buf):
# If there is an autocompletion menu to be shown, make sure that our
# layout has at least a minimal height in order to display it.
if reserve_space_for_menu and not get_app().is_done:
buff = buffer
# Reserve the space, either when there are completions, or when
# `complete_while_typing` is true and we expect completions very
# soon.
if buff.complete_while_typing() or buff.complete_state is not None:
return Dimension(min=reserve_space_for_menu)
return Dimension()
search_toolbar = SearchToolbar()
buf_ctrl_window = Window(
BufferControl(
buffer=buffer,
search_buffer_control=search_toolbar.control,
input_processors=input_processors,
lexer=lexer,
preview_search=True
),
height=lambda: _get_buffer_control_height(buffer),
wrap_lines=wrap_lines,
left_margins=[
ConditionalMargin(
PromptMargin(get_prompt_tokens),
filter=multiline
)
]
)
in_out_area = VSplit([
HSplit([
FloatContainer(
HSplit([buf_ctrl_window]),
[
Float(
xcursor=True,
ycursor=True,
content=CompletionsMenu(
max_height=16,
scroll_offset=1,
extra_filter=has_focus(DEFAULT_BUFFER)
)
),
]
),
# reverse-i-search toolbar (ctrl+r)
search_toolbar,
])
])
bottom_toolbar = VSplit([
ConditionalContainer(
Window(
FormattedTextControl(get_bottom_toolbar_tokens),
height=Dimension.exact(1)
),
filter=~is_done & renderer_height_is_known
),
ConditionalContainer(
Window(
FormattedTextControl(lambda: sidebar_token),
height=Dimension.exact(1),
align=WindowAlign.RIGHT
),
filter=~is_done & renderer_height_is_known
)
])
return Layout(HSplit([in_out_area, bottom_toolbar]))
def _create_layout(self,
message='',
lexer=None,
is_password=False,
reserve_space_for_menu=8,
get_prompt_tokens=None,
get_continuation_tokens=None,
get_rprompt_tokens=None,
get_bottom_toolbar_tokens=None,
get_url_tokens=None,
display_completions_in_columns=False,
extra_input_processors=None,
multiline=False,
wrap_lines=True):
"""
Create a :class:`.Container` instance for a prompt.
:param message: Text to be used as prompt.
:param lexer: :class:`~prompt_toolkit.layout.lexers.Lexer` to be used for
the highlighting.
:param is_password: `bool` or :class:`~prompt_toolkit.filters.CLIFilter`.
When True, display input as '*'.
:param reserve_space_for_menu: Space to be reserved for the menu. When >0,
make sure that a minimal height is allocated in the terminal, in order
to display the completion menu.
:param get_prompt_tokens: An optional callable that returns the tokens to be
shown in the menu. (To be used instead of a `message`.)
:param get_continuation_tokens: An optional callable that takes a
CommandLineInterface and width as input and returns a list of (Token,
text) tuples to be used for the continuation.
:param get_bottom_toolbar_tokens: An optional callable that returns the
tokens for a toolbar at the bottom.
:param display_completions_in_columns: `bool` or
:class:`~prompt_toolkit.filters.CLIFilter`. Display the completions in
multiple columns.
:param multiline: `bool` or :class:`~prompt_toolkit.filters.CLIFilter`.
When True, prefer a layout that is more adapted for multiline input.
Text after newlines is automatically indented, and search/arg input is
shown below the input, instead of replacing the prompt.
:param wrap_lines: `bool` or :class:`~prompt_toolkit.filters.CLIFilter`.
When True (the default), automatically wrap long lines instead of
scrolling horizontally.
"""
assert get_bottom_toolbar_tokens is None or callable(
get_bottom_toolbar_tokens)
assert get_prompt_tokens is None or callable(get_prompt_tokens)
assert get_rprompt_tokens is None or callable(get_rprompt_tokens)
assert not (message and get_prompt_tokens)
display_completions_in_columns = to_cli_filter(
display_completions_in_columns)
multiline = to_cli_filter(multiline)
if get_prompt_tokens is None:
get_prompt_tokens = lambda _: [(Token.Prompt, message)]
has_before_tokens, get_prompt_tokens_1, get_prompt_tokens_2 = \
_split_multiline_prompt(get_prompt_tokens)
# `lexer` is supposed to be a `Lexer` instance. But if a Pygments lexer
# class is given, turn it into a PygmentsLexer. (Important for
# backwards-compatibility.)
try:
if pygments_Lexer and issubclass(lexer, pygments_Lexer):
lexer = PygmentsLexer(lexer, sync_from_start=True)
except TypeError: # Happens when lexer is `None` or an instance of something else.
pass
# Create processors list.
input_processors = [
ConditionalProcessor(
# By default, only highlight search when the search
# input has the focus. (Note that this doesn't mean
# there is no search: the Vi 'n' binding for instance
# still allows to jump to the next match in
# navigation mode.)
HighlightSearchProcessor(preview_search=True),
HasFocus(SEARCH_BUFFER)),
HighlightSelectionProcessor(),
ConditionalProcessor(AppendAutoSuggestion(),
HasFocus(DEFAULT_BUFFER) & ~IsDone()),
ConditionalProcessor(PasswordProcessor(), is_password),
DisplayMultipleCursors(DEFAULT_BUFFER),
]
if extra_input_processors:
input_processors.extend(extra_input_processors)
# Show the prompt before the input (using the DefaultPrompt processor.
# This also replaces it with reverse-i-search and 'arg' when required.
# (Only for single line mode.)
# (DefaultPrompt should always be at the end of the processors.)
input_processors.append(
ConditionalProcessor(DefaultPrompt(get_prompt_tokens_2),
~multiline))
# Create bottom toolbar.
if get_bottom_toolbar_tokens:
toolbars = [
ConditionalContainer(VSplit([
Window(TokenListControl(get_url_tokens,
default_char=Char(
' ', Token.Toolbar)),
height=LayoutDimension.exact(1)),
Window(TokenListControl(get_bottom_toolbar_tokens,
default_char=Char(
' ', Token.Toolbar),
align_right=True),
height=LayoutDimension.exact(1))
]),
filter=~IsDone()
& RendererHeightIsKnown())
]
else:
toolbars = []
def get_height(cli):
# If there is an autocompletion menu to be shown, make sure that our
# layout has at least a minimal height in order to display it.
if reserve_space_for_menu and not cli.is_done:
buff = cli.current_buffer
# Reserve the space, either when there are completions, or when
# `complete_while_typing` is true and we expect completions very
# soon.
if buff.complete_while_typing(
) or buff.complete_state is not None:
return LayoutDimension(min=reserve_space_for_menu)
return LayoutDimension()
# Create and return Container instance.
return HSplit([
# The main input, with completion menus floating on top of it.
FloatContainer(
HSplit([
ConditionalContainer(
Window(TokenListControl(get_prompt_tokens_1),
dont_extend_height=True),
Condition(has_before_tokens)),
Window(
BufferControl(
input_processors=input_processors,
lexer=lexer,
# Enable preview_search, we want to have immediate feedback
# in reverse-i-search mode.
preview_search=True),
get_height=get_height,
left_margins=[
# In multiline mode, use the window margin to display
# the prompt and continuation tokens.
ConditionalMargin(PromptMargin(
get_prompt_tokens_2, get_continuation_tokens),
filter=multiline)
],
wrap_lines=wrap_lines,
),
]),
[
# Completion menus.
Float(xcursor=True,
ycursor=True,
content=CompletionsMenu(
max_height=16,
scroll_offset=1,
extra_filter=HasFocus(DEFAULT_BUFFER)
& ~display_completions_in_columns)),
Float(xcursor=True,
ycursor=True,
content=MultiColumnCompletionsMenu(
extra_filter=HasFocus(DEFAULT_BUFFER)
& display_completions_in_columns,
show_meta=True)),
# The right prompt.
Float(right=0,
top=0,
hide_when_covering_content=True,
content=_RPrompt(get_rprompt_tokens)),
]),
ValidationToolbar(),
SystemToolbar(),
# In multiline mode, we use two toolbars for 'arg' and 'search'.
ConditionalContainer(ArgToolbar(), multiline),
ConditionalContainer(SearchToolbar(), multiline),
] + toolbars)
def _create_application(self, editing_mode, erase_when_done):
def dyncond(attr_name):
"""
Dynamically take this setting from this 'Prompt' class.
`attr_name` represents an attribute name of this class. Its value
can either be a boolean or a `Filter`.
This returns something that can be used as either a `Filter`
or `Filter`.
"""
@Condition
def dynamic():
value = getattr(self, attr_name)
return to_filter(value)()
return dynamic
# Create functions that will dynamically split the prompt. (If we have
# a multiline prompt.)
has_before_fragments, get_prompt_text_1, get_prompt_text_2 = \
_split_multiline_prompt(self._get_prompt)
# Create buffers list.
def accept(buff):
""" Accept the content of the default buffer. This is called when
the validation succeeds. """
self.app.set_result(buff.document.text)
# Reset content before running again.
self.app.pre_run_callables.append(buff.reset)
default_buffer = Buffer(
name=DEFAULT_BUFFER,
# Make sure that complete_while_typing is disabled when
# enable_history_search is enabled. (First convert to Filter,
# to avoid doing bitwise operations on bool objects.)
complete_while_typing=Condition(
lambda: _true(self.complete_while_typing) and not _true(
self.enable_history_search) and not self.complete_style ==
CompleteStyle.READLINE_LIKE),
validate_while_typing=dyncond('validate_while_typing'),
enable_history_search=dyncond('enable_history_search'),
validator=DynamicValidator(lambda: self.validator),
completer=ThreadedCompleter(
completer=DynamicCompleter(lambda: self.completer),
in_thread=dyncond('complete_in_thread'),
),
history=DynamicHistory(lambda: self.history),
auto_suggest=DynamicAutoSuggest(lambda: self.auto_suggest),
accept_handler=accept,
get_tempfile_suffix=lambda: self.tempfile_suffix)
search_buffer = Buffer(name=SEARCH_BUFFER)
# Create processors list.
input_processor = merge_processors([
ConditionalProcessor(
# By default, only highlight search when the search
# input has the focus. (Note that this doesn't mean
# there is no search: the Vi 'n' binding for instance
# still allows to jump to the next match in
# navigation mode.)
HighlightSearchProcessor(preview_search=True),
has_focus(search_buffer)),
HighlightSelectionProcessor(),
ConditionalProcessor(AppendAutoSuggestion(),
has_focus(default_buffer) & ~is_done),
ConditionalProcessor(PasswordProcessor(), dyncond('is_password')),
DisplayMultipleCursors(),
# Users can insert processors here.
DynamicProcessor(lambda: self.extra_input_processor),
# For single line mode, show the prompt before the input.
ConditionalProcessor(
merge_processors([
BeforeInput(get_prompt_text_2),
ShowArg(),
]), ~dyncond('multiline'))
])
# Create bottom toolbars.
bottom_toolbar = ConditionalContainer(
Window(FormattedTextControl(lambda: self.bottom_toolbar,
style='class:bottom-toolbar.text'),
style='class:bottom-toolbar',
dont_extend_height=True,
height=Dimension(min=1)),
filter=~is_done & renderer_height_is_known
& Condition(lambda: self.bottom_toolbar is not None))
search_toolbar = SearchToolbar(
search_buffer,
get_search_state=lambda: default_buffer_control.get_search_state())
search_buffer_control = BufferControl(buffer=search_buffer,
input_processor=merge_processors(
[
ReverseSearchProcessor(),
ShowArg(),
]))
system_toolbar = SystemToolbar()
def get_search_buffer_control():
" Return the UIControl to be focused when searching start. "
if _true(self.multiline):
return search_toolbar.control
else:
return search_buffer_control
default_buffer_control = BufferControl(
buffer=default_buffer,
get_search_buffer_control=get_search_buffer_control,
input_processor=input_processor,
lexer=DynamicLexer(lambda: self.lexer),
preview_search=True)
default_buffer_window = Window(
default_buffer_control,
height=self._get_default_buffer_control_height,
left_margins=[
# In multiline mode, use the window margin to display
# the prompt and continuation fragments.
ConditionalMargin(
PromptMargin(get_prompt_text_2, self._get_continuation),
filter=dyncond('multiline'),
)
],
wrap_lines=dyncond('wrap_lines'))
@Condition
def multi_column_complete_style():
return self.complete_style == CompleteStyle.MULTI_COLUMN
# Build the layout.
layout = HSplit([
# The main input, with completion menus floating on top of it.
FloatContainer(
HSplit([
ConditionalContainer(
Window(FormattedTextControl(get_prompt_text_1),
dont_extend_height=True),
Condition(has_before_fragments)),
ConditionalContainer(
default_buffer_window,
Condition(lambda: get_app().layout.current_control !=
search_buffer_control),
),
ConditionalContainer(
Window(search_buffer_control),
Condition(lambda: get_app().layout.current_control ==
search_buffer_control),
),
]),
[
# Completion menus.
Float(xcursor=True,
ycursor=True,
content=CompletionsMenu(
max_height=16,
scroll_offset=1,
extra_filter=has_focus(default_buffer)
& ~multi_column_complete_style)),
Float(xcursor=True,
ycursor=True,
content=MultiColumnCompletionsMenu(
show_meta=True,
extra_filter=has_focus(default_buffer)
& multi_column_complete_style)),
# The right prompt.
Float(right=0,
top=0,
hide_when_covering_content=True,
content=_RPrompt(lambda: self.rprompt)),
]),
ConditionalContainer(ValidationToolbar(), filter=~is_done),
ConditionalContainer(system_toolbar,
dyncond('enable_system_prompt') & ~is_done),
# In multiline mode, we use two toolbars for 'arg' and 'search'.
ConditionalContainer(
Window(FormattedTextControl(self._get_arg_text), height=1),
dyncond('multiline') & has_arg),
ConditionalContainer(search_toolbar,
dyncond('multiline') & ~is_done),
bottom_toolbar,
])
# Default key bindings.
auto_suggest_bindings = load_auto_suggest_bindings()
open_in_editor_bindings = load_open_in_editor_bindings()
prompt_bindings = self._create_prompt_bindings()
# Create application
application = Application(
layout=Layout(layout, default_buffer_window),
style=DynamicStyle(lambda: self.style),
include_default_pygments_style=dyncond(
'include_default_pygments_style'),
clipboard=DynamicClipboard(lambda: self.clipboard),
key_bindings=merge_key_bindings([
merge_key_bindings([
auto_suggest_bindings,
ConditionalKeyBindings(
open_in_editor_bindings,
dyncond('enable_open_in_editor')
& has_focus(DEFAULT_BUFFER)), prompt_bindings
]),
ConditionalKeyBindings(
system_toolbar.get_global_key_bindings(),
dyncond('enable_system_prompt')),
DynamicKeyBindings(lambda: self.extra_key_bindings),
]),
mouse_support=dyncond('mouse_support'),
editing_mode=editing_mode,
erase_when_done=erase_when_done,
reverse_vi_search_direction=True,
# I/O.
input=self.input,
output=self.output)
# During render time, make sure that we focus the right search control
# (if we are searching). - This could be useful if people make the
# 'multiline' property dynamic.
'''
def on_render(app):
multiline = _true(self.multiline)
current_control = app.layout.current_control
if multiline:
if current_control == search_buffer_control:
app.layout.current_control = search_toolbar.control
app.invalidate()
else:
if current_control == search_toolbar.control:
app.layout.current_control = search_buffer_control
app.invalidate()
app.on_render += on_render
'''
return application, default_buffer, default_buffer_control
def __init__(self):
pdb.Pdb.__init__(self)
# Cache for the grammar.
self._grammar_cache = None # (current_pdb_commands, grammar) tuple.
self.completer = None
self.validator = None
self.lexer = None
self._source_code_window = Window(BufferControl(
buffer_name='source_code',
lexer=PygmentsLexer(PythonLexer),
input_processors=[
HighlightSearchProcessor(preview_search=True),
HighlightSelectionProcessor(),
],
),
left_margins=[
SourceCodeMargin(self),
NumberredMargin(),
],
right_margins=[ScrollbarMargin()],
scroll_offsets=ScrollOffsets(
top=2, bottom=2),
height=LayoutDimension(preferred=10))
# Callstack window.
callstack = CallStack(weakref.ref(self))
self.callstack_focussed = False # When True, show cursor there, and allow navigation through it.
self.callstack_selected_frame = 0 # Top frame.
show_pdb_content_filter = ~IsDone() & Condition(
lambda cli: not self.python_input.show_exit_confirmation)
self.python_input = PythonInput(
get_locals=lambda: self.curframe.f_locals,
get_globals=lambda: self.curframe.f_globals,
_completer=DynamicCompleter(lambda: self.completer),
_validator=DynamicValidator(lambda: self.validator),
_accept_action=self._create_accept_action(),
_extra_buffers={'source_code': Buffer(read_only=True)},
_input_buffer_height=LayoutDimension(min=2, max=4),
_lexer=PdbLexer(),
_extra_buffer_processors=[
ConditionalProcessor(processor=CompletionHint(),
filter=~IsDone())
],
_extra_layout_body=ConditionalContainer(
HSplit([
VSplit([
HSplit([
SourceTitlebar(weakref.ref(self)),
FloatContainer(
content=self._source_code_window,
floats=[
Float(right=0,
bottom=0,
content=BreakPointInfoToolbar(
weakref.ref(self)))
]),
]),
HSplit([
Window(width=LayoutDimension.exact(1),
height=LayoutDimension.exact(1),
content=FillControl(
'\u252c', token=Token.Toolbar.Title)),
Window(width=LayoutDimension.exact(1),
content=FillControl('\u2502',
token=Token.Separator)),
]),
HSplit([
StackTitlebar(weakref.ref(self)),
Window(callstack,
scroll_offsets=ScrollOffsets(top=2,
bottom=2),
right_margins=[ScrollbarMargin()],
height=LayoutDimension(preferred=10)),
]),
]),
]),
filter=show_pdb_content_filter),
_extra_toolbars=[
ConditionalContainer(PdbShortcutsToolbar(weakref.ref(self)),
show_pdb_content_filter)
],
history_filename=os.path.expanduser('~/.ptpdb_history'),
)
# Override prompt style.
self.python_input.all_prompt_styles['pdb'] = PdbPromptStyle(
self._get_current_pdb_commands())
self.python_input.prompt_style = 'pdb'
# Override exit message.
self.python_input.exit_message = 'Do you want to quit BDB? This raises BdbQuit.'
# Set UI styles.
self.python_input.ui_styles = {
'ptpdb': get_ui_style(),
}
self.python_input.use_ui_colorscheme('ptpdb')
# Set autocompletion style. (Multi-column works nicer.)
self.python_input.completion_visualisation = CompletionVisualisation.MULTI_COLUMN
# Load additional key bindings.
load_custom_pdb_key_bindings(self,
self.python_input.key_bindings_registry)
self.cli = CommandLineInterface(
eventloop=create_eventloop(),
application=self.python_input.create_application())
def main(self, data):
fr = FileReader(data)
bc = BufferCache()
all_input_processors = [
ConditionalProcessor(HighlightSearchProcessor(), ~is_searching),
HighlightIncrementalSearchProcessor(),
HighlightSelectionProcessor(),
DisplayMultipleCursors(),
]
search_toolbar = SearchToolbar(vi_mode=True)
lst_window = Window(
BufferControl(
Buffer(
name="file_list",
document=Document(fr.get_list_text(), cursor_position=0),
read_only=True,
),
search_buffer_control=search_toolbar.control,
preview_search=True,
include_default_input_processors=False,
input_processors=all_input_processors,
),
cursorline=True,
)
txt_window = Window(
BufferControl(
bc.current_buffer,
search_buffer_control=search_toolbar.control,
preview_search=True,
include_default_input_processors=False,
input_processors=all_input_processors,
),
wrap_lines=False,
)
toolbar = FormattedTextToolbar(text="hello world!",
style="class:buf_name")
body = HSplit([lst_window])
# Key bind
kb = KeyBindings()
kb.add(Keys.ControlD)(scroll_half_page_down)
kb.add(Keys.ControlU)(scroll_half_page_up)
@kb.add(Keys.ControlQ)
def _(event):
event.app.exit()
@kb.add(Keys.Enter, filter=has_focus("file_list"))
def _(event):
idx = event.current_buffer.document.cursor_position_row
path = str(fr.get_path(idx))
origin_data = str(fr.get_relative_path(idx))
origin_data2 = origin_data.split("|")[0]
number = origin_data2.split(":")[-1]
command = "vim " + "+" + number + " " + path
res = subprocess.call(command.split())
@kb.add("k")
def _(event):
event.current_buffer.cursor_up()
idx = event.current_buffer.document.cursor_position_row
path = str(fr.get_relative_path(idx))
try:
set_buffer_txt_window(bc.get_or_append_buffer(path, "AAAAA"))
set_text_toolbar(bc.current_buffer_name)
except:
pass
@kb.add("j")
def _(event):
event.current_buffer.cursor_down()
idx = event.current_buffer.document.cursor_position_row
path = str(fr.get_relative_path(idx))
set_buffer_txt_window(bc.get_or_append_buffer(path, "AAAAA"))
set_text_toolbar(bc.current_buffer_name)
def set_buffer_txt_window(buf):
txt_window.content.buffer = buf
def set_text_toolbar(text):
toolbar.content.text = text
@Condition
def search_buffer_is_empty():
return get_app().current_buffer.text == ""
style = Style([
("buf_name", "fg:#dddddd bg:#8a2be2"),
("incsearch", "fg:ansibrightyellow reverse"),
])
app = Application(layout=Layout(body),
key_bindings=kb,
full_screen=True,
style=style)
app.run()
def create_default_layout(message='',
lexer=None,
is_password=False,
reserve_space_for_menu=False,
get_prompt_tokens=None,
get_bottom_toolbar_tokens=None,
extra_input_processors=None):
"""
Generate default layout.
Returns a ``Layout`` instance.
:param message: Text to be used as prompt.
:param lexer: Pygments lexer to be used for the highlighting.
:param is_password: When True, display input as '*'.
:param reserve_space_for_menu: When True, make sure that a minimal height is
allocated in the terminal, in order to display the completion menu.
:param get_prompt_tokens: An optional callable that returns the tokens to be
shown in the menu. (To be used instead of a `message`.)
:param get_bottom_toolbar_tokens: An optional callable that returns the
tokens for a toolbar at the bottom.
"""
assert isinstance(message, text_type)
assert get_bottom_toolbar_tokens is None or callable(
get_bottom_toolbar_tokens)
assert get_prompt_tokens is None or callable(get_prompt_tokens)
assert not (message and get_prompt_tokens)
# Create processors list.
# (DefaultPrompt should always be at the end.)
input_processors = [
HighlightSearchProcessor(preview_search=Always()),
HighlightSelectionProcessor()
]
if is_password:
input_processors.append(PasswordProcessor())
if extra_input_processors:
input_processors.extend(extra_input_processors)
if message:
input_processors.append(DefaultPrompt.from_message(message))
else:
input_processors.append(DefaultPrompt(get_prompt_tokens))
# Create bottom toolbar.
if get_bottom_toolbar_tokens:
toolbars = [
Window(TokenListControl(get_bottom_toolbar_tokens,
default_char=Char(' ', Token.Toolbar)),
height=LayoutDimension.exact(1),
filter=~IsDone() & RendererHeightIsKnown())
]
else:
toolbars = []
def get_height(cli):
# If there is an autocompletion menu to be shown, make sure that our
# layout has at least a minimal height in order to display it.
if reserve_space_for_menu and not cli.is_done:
return LayoutDimension(min=8)
else:
return LayoutDimension()
# Create and return Layout instance.
return HSplit([
FloatContainer(
Window(
BufferControl(
input_processors=input_processors,
lexer=lexer,
# Enable preview_search, we want to have immediate feedback
# in reverse-i-search mode.
preview_search=Always()),
get_height=get_height,
),
[
Float(xcursor=True,
ycursor=True,
content=CompletionsMenu(max_height=16,
extra_filter=HasFocus(
DEFAULT_BUFFER)))
]),
ValidationToolbar(),
SystemToolbar(),
] + toolbars)
def __init__(self,
command=['/bin/bash'],
before_exec_func=None,
bell_func=None,
style='',
width=None,
height=None,
done_callback=None):
self.terminal_control = _TerminalControl(
command=command,
before_exec_func=before_exec_func,
bell_func=bell_func,
done_callback=done_callback)
self.terminal_window = _Window(terminal_control=self.terminal_control,
content=self.terminal_control,
wrap_lines=False)
# Key bindigns for copy buffer.
kb = KeyBindings()
@kb.add('c-c')
def _(event):
self.exit_copy_mode()
@kb.add('space')
def _(event):
" Reset selection. "
event.current_buffer.start_selection()
@kb.add('enter', filter=has_selection)
def _(event):
" Reset selection. "
data = event.current_buffer.copy_selection()
event.app.clipboard.set_data(data)
self.search_toolbar = SearchToolbar(
forward_search_prompt='Search down: ',
backward_search_prompt='Search up: ')
self.copy_buffer = Buffer(read_only=True)
self.copy_buffer_control = BufferControl(
buffer=self.copy_buffer,
search_buffer_control=self.search_toolbar.control,
include_default_input_processors=False,
input_processors=[
_UseStyledTextProcessor(self),
HighlightSelectionProcessor(),
HighlightSearchProcessor(),
HighlightIncrementalSearchProcessor(),
],
preview_search=
True, # XXX: not sure why we need twice preview_search.
key_bindings=kb)
self.copy_window = Window(content=self.copy_buffer_control,
wrap_lines=False)
self.is_copying = False
self.styled_copy_lines = [
] # List of lists of (style, text) tuples, for each line.
@Condition
def is_copying():
return self.is_copying
self.container = FloatContainer(
content=HSplit(
[
# Either show terminal window or copy buffer.
VSplit([ # XXX: this nested VSplit should not have been necessary,
# but the ConditionalContainer which width can become
# zero will collapse the other elements.
ConditionalContainer(self.terminal_window,
filter=~is_copying),
ConditionalContainer(self.copy_window,
filter=is_copying),
]),
ConditionalContainer(self.search_toolbar,
filter=is_copying),
],
style=style,
width=width,
height=height),
floats=[
Float(top=0,
right=0,
height=1,
content=ConditionalContainer(Window(
content=FormattedTextControl(
text=self._copy_position_formatted_text),
style='class:copy-mode-cursor-position'),
filter=is_copying))
])
def _create_container_for_process(pymux, arrangement_pane, zoom=False):
"""
Create a `Container` with a titlebar for a process.
"""
assert isinstance(arrangement_pane, arrangement.Pane)
process = arrangement_pane.process
def has_focus(cli):
return pymux.arrangement.get_active_pane(cli) == arrangement_pane
def get_titlebar_token(cli):
return Token.TitleBar.Focussed if has_focus(cli) else Token.TitleBar
def get_titlebar_name_token(cli):
return Token.TitleBar.Name.Focussed if has_focus(
cli) else Token.TitleBar.Name
def get_title_tokens(cli):
token = get_titlebar_token(cli)
name_token = get_titlebar_name_token(cli)
result = []
if zoom:
result.append((Token.TitleBar.Zoom, ' Z '))
if process.is_terminated:
result.append((Token.Terminated, ' Terminated '))
# Scroll buffer info.
if arrangement_pane.display_scroll_buffer:
result.append((token.CopyMode,
' %s ' % arrangement_pane.scroll_buffer_title))
# Cursor position.
document = arrangement_pane.scroll_buffer.document
result.append(
(token.CopyMode.Position, ' %i,%i ' %
(document.cursor_position_row, document.cursor_position_col)))
if arrangement_pane.name:
result.append((name_token, ' %s ' % arrangement_pane.name))
result.append((token, ' '))
return result + [
(token.Title,
format_pymux_string(pymux, cli, ' #T ', pane=arrangement_pane)
) # XXX: Make configurable.
]
def get_pane_index(cli):
token = get_titlebar_token(cli)
try:
w = pymux.arrangement.get_active_window(cli)
index = w.get_pane_index(arrangement_pane)
except ValueError:
index = '/'
return [(token.PaneIndex, '%3s ' % index)]
def on_click(cli):
" Click handler for the clock. When clicked, select this pane. "
arrangement_pane.clock_mode = False
pymux.arrangement.get_active_window(cli).active_pane = arrangement_pane
pymux.invalidate()
def set_focus(cli):
pymux.arrangement.get_active_window(cli).active_pane = arrangement_pane
pymux.invalidate()
clock_is_visible = Condition(lambda cli: arrangement_pane.clock_mode)
pane_numbers_are_visible = Condition(
lambda cli: pymux.display_pane_numbers)
return TracePaneWritePosition(
pymux,
arrangement_pane,
content=HSplit([
# The title bar.
VSplit([
Window(height=D.exact(1),
content=TokenListControl(
get_title_tokens,
get_default_char=lambda cli: Char(
' ', get_titlebar_token(cli)))),
Window(height=D.exact(1),
width=D.exact(4),
content=TokenListControl(get_pane_index))
]),
# The pane content.
FloatContainer(
content=HSplit([
# The 'screen' of the pseudo terminal.
ConditionalContainer(
content=Vt100Window(
process=process,
has_focus=Condition(lambda cli: (
cli.current_buffer_name != COMMAND and pymux.
arrangement.get_active_pane(cli) ==
arrangement_pane)),
set_focus=set_focus,
),
filter=~clock_is_visible
& Condition(lambda cli: not arrangement_pane.
display_scroll_buffer)),
# The copy/paste buffer.
ConditionalContainer(content=Window(
BufferControl(
buffer_name='pane-%i' % arrangement_pane.pane_id,
focus_on_click=True,
default_char=Char(token=Token),
preview_search=True,
get_search_state=lambda cli: arrangement_pane.
search_state,
search_buffer_name='search-%i' %
arrangement_pane.pane_id,
input_processors=[
_UseCopyTokenListProcessor(arrangement_pane),
HighlightSearchProcessor(
search_buffer_name='search-%i' %
arrangement_pane.pane_id,
get_search_state=lambda cli:
arrangement_pane.search_state,
preview_search=True,
),
HighlightSelectionProcessor(),
],
),
wrap_lines=False,
),
filter=~clock_is_visible &
Condition(lambda cli: arrangement_pane
.display_scroll_buffer)),
# Search toolbar. (Displayed when this pane has the focus, and searching.)
ConditionalContainer(
content=SearchWindow(pymux, arrangement_pane),
filter=~clock_is_visible &
Condition(lambda cli: arrangement_pane.is_searching)),
# The clock.
ConditionalContainer(
# Add a dummy VSplit/HSplit around the BigClock in order to center it.
# (Using a FloatContainer to do the centering doesn't work well, because
# the boundaries are not clipped when the parent is smaller.)
content=VSplit(
[
Window(_FillControl(on_click)),
HSplit([
Window(_FillControl(on_click)),
BigClock(on_click),
Window(_FillControl(on_click)),
]),
Window(_FillControl(on_click)),
],
get_dimensions=lambda cli:
[None, D.exact(BigClock.WIDTH), None]),
filter=clock_is_visible,
),
]),
# Pane numbers. (Centered.)
floats=[
Float(content=ConditionalContainer(
content=PaneNumber(pymux, arrangement_pane),
filter=pane_numbers_are_visible)),
])
]))
def create_default_layout(app,
message='',
lexer=None,
is_password=False,
reserve_space_for_menu=False,
get_prompt_tokens=None,
get_bottom_toolbar_tokens=None,
display_completions_in_columns=False,
extra_input_processors=None,
multiline=False):
"""
Generate default layout.
Returns a ``Layout`` instance.
:param message: Text to be used as prompt.
:param lexer: Lexer to be used for the highlighting.
:param is_password: `bool` or `CLIFilter`. When True, display input as '*'.
:param reserve_space_for_menu: When True, make sure that a minimal height
is allocated in the terminal, in order to display the completion menu.
:param get_prompt_tokens: An optional callable that returns the tokens to
be shown in the menu. (To be used instead of a `message`.)
:param get_bottom_toolbar_tokens: An optional callable that returns the
tokens for a toolbar at the bottom.
:param display_completions_in_columns: `bool` or `CLIFilter`. Display the
completions in multiple columns.
:param multiline: `bool` or `CLIFilter`. When True, prefer a layout that is
more adapted for multiline input. Text after newlines is automatically
indented, and search/arg input is shown below the input, instead of
replacing the prompt.
"""
assert isinstance(message, text_type)
assert (get_bottom_toolbar_tokens is None
or callable(get_bottom_toolbar_tokens))
assert get_prompt_tokens is None or callable(get_prompt_tokens)
assert not (message and get_prompt_tokens)
display_completions_in_columns = to_cli_filter(
display_completions_in_columns)
multiline = to_cli_filter(multiline)
if get_prompt_tokens is None:
get_prompt_tokens = lambda _: [(Token.Prompt, message)]
get_prompt_tokens_1, get_prompt_tokens_2 = _split_multiline_prompt(
get_prompt_tokens)
# `lexer` is supposed to be a `Lexer` instance. But if a Pygments lexer
# class is given, turn it into a PygmentsLexer. (Important for
# backwards-compatibility.)
try:
if issubclass(lexer, Lexer):
lexer = PygmentsLexer(lexer)
except TypeError:
# Happens when lexer is `None` or an instance of something else.
pass
# Create processors list.
# (DefaultPrompt should always be at the end.)
input_processors = [
ConditionalProcessor(
# By default, only highlight search when the search
# input has the focus. (Note that this doesn't mean
# there is no search: the Vi 'n' binding for instance
# still allows to jump to the next match in
# navigation mode.)
HighlightSearchProcessor(preview_search=Always()),
HasFocus(SEARCH_BUFFER)),
HighlightSelectionProcessor(),
ConditionalProcessor(AppendAutoSuggestion(),
HasFocus(DEFAULT_BUFFER) & ~IsDone()),
ConditionalProcessor(PasswordProcessor(), is_password)
]
if extra_input_processors:
input_processors.extend(extra_input_processors)
# Show the prompt before the input (using the DefaultPrompt processor.
# This also replaces it with reverse-i-search and 'arg' when required.
# (Only for single line mode.)
input_processors.append(
ConditionalProcessor(DefaultPrompt(get_prompt_tokens), ~multiline))
# Create bottom toolbar.
if get_bottom_toolbar_tokens:
toolbars = [
ConditionalContainer(Window(TokenListControl(
get_bottom_toolbar_tokens,
default_char=Char(' ', Token.Toolbar)),
height=LayoutDimension.exact(1)),
filter=~IsDone() & RendererHeightIsKnown())
]
else:
toolbars = []
def get_height(cli):
# If there is an autocompletion menu to be shown, make sure that our
# layout has at least a minimal height in order to display it.
if reserve_space_for_menu and not cli.is_done:
return LayoutDimension(min=8)
else:
return LayoutDimension()
def separator():
return ConditionalContainer(content=Window(
height=LayoutDimension.exact(1),
content=FillControl(u'\u2500', token=Token.Separator)),
filter=HasDocumentation(app) & ~IsDone())
# Create and return Layout instance.
return HSplit([
ConditionalContainer(
Window(TokenListControl(get_prompt_tokens_1),
dont_extend_height=True),
filter=multiline,
),
VSplit([
# In multiline mode, the prompt is displayed in a left pane.
ConditionalContainer(
Window(
TokenListControl(get_prompt_tokens_2),
dont_extend_width=True,
),
filter=multiline,
),
# The main input, with completion menus floating on top of it.
FloatContainer(
Window(
BufferControl(
input_processors=input_processors,
lexer=lexer,
# Enable preview_search, we want to have immediate
# feedback in reverse-i-search mode.
preview_search=Always(),
focus_on_click=True,
),
get_height=get_height,
),
[
Float(xcursor=True,
ycursor=True,
content=CompletionsMenu(
max_height=16,
scroll_offset=1,
extra_filter=(HasFocus(DEFAULT_BUFFER)
& ~display_completions_in_columns
))), # noqa E501
Float(xcursor=True,
ycursor=True,
content=MultiColumnCompletionsMenu(
extra_filter=(HasFocus(DEFAULT_BUFFER)
& display_completions_in_columns),
show_meta=Always()))
]),
]),
separator(),
ConditionalContainer(
content=Window(BufferControl(
focus_on_click=True,
buffer_name=u'clidocs',
),
height=LayoutDimension(max=15)),
filter=HasDocumentation(app) & ~IsDone(),
),
separator(),
ValidationToolbar(),
SystemToolbar(),
# In multiline mode, we use two toolbars for 'arg' and 'search'.
ConditionalContainer(ArgToolbar(), multiline),
ConditionalContainer(SearchToolbar(), multiline),
] + toolbars)
def create_layout(message='',
lexer=None,
reserve_space_for_menu=8,
get_prompt_tokens=None,
get_bottom_toolbar_tokens=None,
extra_input_processors=None,
multiline=False,
wrap_lines=True):
# Create processors list.
input_processors = [
ConditionalProcessor(
# Highlight the reverse-i-search buffer
HighlightSearchProcessor(preview_search=True),
HasFocus(SEARCH_BUFFER)),
]
if extra_input_processors:
input_processors.extend(extra_input_processors)
lexer = PygmentsLexer(lexer, sync_from_start=True)
multiline = to_cli_filter(multiline)
sidebar_token = [(Token.Toolbar.Status.Key, "[ctrl+d]"),
(Token.Toolbar.Status, " Exit")]
sidebar_width = token_list_width(sidebar_token)
get_prompt_tokens = lambda _: [(Token.Prompt, message)]
get_sidebar_tokens = lambda _: sidebar_token
def get_height(cli):
# If there is an autocompletion menu to be shown, make sure that our
# layout has at least a minimal height in order to display it.
if reserve_space_for_menu and not cli.is_done:
buff = cli.current_buffer
# Reserve the space, either when there are completions, or when
# `complete_while_typing` is true and we expect completions very
# soon.
if buff.complete_while_typing() or buff.complete_state is not None:
return LayoutDimension(min=reserve_space_for_menu)
return LayoutDimension()
# Create and return Container instance.
return HSplit([
VSplit([
HSplit([
# The main input, with completion menus floating on top of it.
FloatContainer(
HSplit([
Window(
BufferControl(
input_processors=input_processors,
lexer=lexer,
# enable preview search for reverse-i-search
preview_search=True),
get_height=get_height,
wrap_lines=wrap_lines,
left_margins=[
# In multiline mode, use the window margin to display
# the prompt and continuation tokens.
ConditionalMargin(PromptMargin(
get_prompt_tokens),
filter=multiline)
],
),
]),
[
# Completion menu
Float(xcursor=True,
ycursor=True,
content=CompletionsMenu(max_height=16,
scroll_offset=1,
extra_filter=HasFocus(
DEFAULT_BUFFER))),
]),
# reverse-i-search toolbar (ctrl+r)
ConditionalContainer(SearchToolbar(), multiline),
])
]),
] + [
VSplit([
# Left-Aligned Session Toolbar
ConditionalContainer(Window(TokenListControl(
get_bottom_toolbar_tokens),
height=LayoutDimension.exact(1)),
filter=~IsDone() & RendererHeightIsKnown()),
# Right-Aligned Container
ConditionalContainer(Window(TokenListControl(get_sidebar_tokens),
height=LayoutDimension.exact(1),
width=LayoutDimension.exact(
sidebar_width)),
filter=~IsDone() & RendererHeightIsKnown())
])
])