def __init__(self, win):
Widget.__init__(self, win)
self.pos = 0
self.line = ''
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.args.clean:
self.historypath = self.fm.datapath('history')
if os.path.exists(self.historypath):
try:
fobj = open(self.historypath, 'r')
except OSError as ex:
self.fm.notify('Failed to read history file', bad=True, exception=ex)
else:
try:
for line in fobj:
self.history.add(line[:-1])
except UnicodeDecodeError as ex:
self.fm.notify('Failed to parse corrupt history file',
bad=True, exception=ex)
fobj.close()
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def __init__(self, win):
Widget.__init__(self, win)
self.pos = 0
self.line = ''
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.args.clean:
self.historypath = self.fm.datapath('history')
if os.path.exists(self.historypath):
try:
fobj = open(self.historypath, 'r')
except OSError as ex:
self.fm.notify('Failed to read history file', bad=True, exception=ex)
else:
try:
for line in fobj:
self.history.add(line[:-1])
except UnicodeDecodeError as ex:
self.fm.notify('Failed to parse corrupt history file',
bad=True, exception=ex)
fobj.close()
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def __init__(self, win):
Widget.__init__(self, win)
self.clear()
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.arg.clean:
self.historypath = self.fm.confpath('history')
try:
f = open(self.historypath, 'r')
except:
pass
else:
for line in f:
self.history.add(line[:-1])
f.close()
self.line = ""
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def __init__(self, win):
Widget.__init__(self, win)
self.clear()
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.arg.clean:
self.historypath = self.fm.confpath('history')
try:
f = open(self.historypath, 'r')
except:
pass
else:
for line in f:
self.history.add(line[:-1])
f.close()
self.line = ""
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def open(self, string='', prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif 'prompt' in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except curses.error:
pass
self.allow_close = False
self.tab_deque = None
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add('')
self.wait_for_command_input = True
return True
def __init__(self, path):
self.thisdir = None # Current Working Directory
self._thisfile = None # Current File
self.history = History(self.settings.max_history_size, unique=False)
self.last_search = None
self.pointer = 0
self.path = abspath(expanduser(path))
self.pathway = ()
# NOTE: in the line below, weak=True works only in python3. In python2,
# weak references are not equal to the original object when tested with
# "==", and this breaks _set_thisfile_from_signal and _on_tab_change.
self.fm.signal_bind('move', self._set_thisfile_from_signal, priority=0.1,
weak=(sys.version > '3'))
self.fm.signal_bind('tab.change', self._on_tab_change,
weak=(sys.version > '3'))
def __init__(self, win):
Widget.__init__(self, win)
self.clear()
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.arg.clean:
self.historypath = self.fm.confpath('history')
try:
f = open(self.historypath, 'r')
except:
pass
else:
for line in f:
self.history.add(line[:-1])
f.close()
self.history_backup = History(self.history)
def open(self, string="", prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif "prompt" in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except:
pass
self.allow_close = False
self.tab_deque = None
self.focused = True
self.visible = True
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add("")
return True
def open(self, string='', prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif 'prompt' in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except curses.error:
pass
self.allow_close = False
self.tab_deque = None
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add('')
self.wait_for_command_input = True
return True
def __init__(self, path):
self.thisdir = None # Current Working Directory
self._thisfile = None # Current File
self.history = History(self.settings.max_history_size, unique=False)
self.last_search = None
self.pointer = 0
self.path = abspath(expanduser(path))
self.pathway = ()
# NOTE: in the line below, weak=True works only in python3. In python2,
# weak references are not equal to the original object when tested with
# "==", and this breaks _set_thisfile_from_signal and _on_tab_change.
self.fm.signal_bind("move", self._set_thisfile_from_signal, priority=0.1, weak=(sys.version > "3"))
self.fm.signal_bind("tab.change", self._on_tab_change, weak=(sys.version > "3"))
def __init__(self, path):
SignalDispatcher.__init__(self)
self.path = abspath(expanduser(path))
self._cf = None
self.pathway = ()
self.directories = {}
self.keybuffer = KeyBuffer()
self.keymaps = KeyMaps(self.keybuffer)
self.copy = set()
self.history = History(self.settings.max_history_size, unique=False)
try:
self.username = pwd.getpwuid(os.geteuid()).pw_name
except:
self.username = "******" + str(os.geteuid())
self.hostname = socket.gethostname()
self.home_path = os.path.expanduser("~")
self.signal_bind("move", self._set_cf_from_signal, priority=0.1, weak=True)
def add_to_history(self):
self.history_backup.fast_forward()
self.history_backup.add(self.line)
self.history = History(self.history_backup)
class Console(Widget): # pylint: disable=too-many-instance-attributes,too-many-public-methods
visible = False
last_cursor_mode = None
history_search_pattern = None
prompt = ':'
copy = ''
tab_deque = None
original_line = None
history = None
history_backup = None
override = None
allow_close = False
historypath = None
wait_for_command_input = False
unicode_buffer = ""
def __init__(self, win):
Widget.__init__(self, win)
self.pos = 0
self.line = ''
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.args.clean:
self.historypath = self.fm.datapath('history')
if os.path.exists(self.historypath):
try:
fobj = open(self.historypath, 'r')
except OSError as ex:
self.fm.notify('Failed to read history file', bad=True, exception=ex)
else:
try:
for line in fobj:
self.history.add(line[:-1])
except UnicodeDecodeError as ex:
self.fm.notify('Failed to parse corrupt history file',
bad=True, exception=ex)
fobj.close()
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def destroy(self):
# save history to files
if ranger.args.clean or not self.settings.save_console_history:
return
if self.historypath:
try:
fobj = open(self.historypath, 'w')
except OSError as ex:
self.fm.notify('Failed to write history file', bad=True, exception=ex)
else:
for entry in self.history_backup:
try:
fobj.write(entry + '\n')
except UnicodeEncodeError:
pass
fobj.close()
Widget.destroy(self)
def draw(self):
self.win.erase()
if self.question_queue:
assert isinstance(self.question_queue[0], tuple)
assert len(self.question_queue[0]) == 3
self.addstr(0, 0, self.question_queue[0][0][self.pos:])
return
self.addstr(0, 0, self.prompt)
line = WideString(self.line)
overflow = -self.wid + len(self.prompt) + len(line) + 1
if overflow > 0:
self.addstr(0, len(self.prompt), str(line[overflow:]))
else:
self.addstr(0, len(self.prompt), self.line)
def finalize(self):
move = self.fm.ui.win.move
if self.question_queue:
try:
move(self.y, len(self.question_queue[0][0]))
except curses.error:
pass
else:
try:
pos = uwid(self.line[0:self.pos]) + len(self.prompt)
move(self.y, self.x + min(self.wid - 1, pos))
except curses.error:
pass
def open(self, string='', prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif 'prompt' in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except curses.error:
pass
self.allow_close = False
self.tab_deque = None
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add('')
self.wait_for_command_input = True
return True
def close(self, trigger_cancel_function=True):
if self.question_queue:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 2:
self._answer_question(answers[1])
else:
self._close_command_prompt(trigger_cancel_function)
def _close_command_prompt(self, trigger_cancel_function=True):
if trigger_cancel_function:
cmd = self._get_cmd(quiet=True)
if cmd:
cmd.cancel()
if self.last_cursor_mode is not None:
try:
curses.curs_set(self.last_cursor_mode)
except curses.error:
pass
self.last_cursor_mode = None
self.fm.hide_console_info()
self.add_to_history()
self.tab_deque = None
self.clear()
self.__class__ = Console
self.wait_for_command_input = False
def clear(self):
self.pos = 0
self.line = ''
def press(self, key):
self.fm.ui.keymaps.use_keymap('console')
if not self.fm.ui.press(key):
self.type_key(key)
def _answer_question(self, answer):
if not self.question_queue:
return False
question = self.question_queue[0]
_, callback, answers = question
if answer in answers:
self.question_queue.pop(0)
callback(answer)
return True
return False
def type_key(self, key):
self.tab_deque = None
line = "" if self.question_queue else self.line
result = self._add_character(key, self.unicode_buffer, line, self.pos)
if result[1] == line:
# line didn't change, so we don't need to do anything, just update
# the unicode _buffer.
self.unicode_buffer = result[0]
return
if self.question_queue:
self.unicode_buffer, answer, _ = result
self._answer_question(answer)
else:
self.unicode_buffer, self.line, self.pos = result
self.on_line_change()
def _add_character(self, key, unicode_buffer, line, pos):
# Takes the pressed key, a string "unicode_buffer" containing a
# potentially incomplete unicode character, the current line and the
# position of the cursor inside the line.
# This function returns the new unicode buffer, the modified line and
# position.
if isinstance(key, int):
try:
key = chr(key)
except ValueError:
return unicode_buffer, line, pos
if self.fm.py3:
if len(unicode_buffer) >= 4:
unicode_buffer = ""
if ord(key) in range(0, 256):
unicode_buffer += key
try:
decoded = unicode_buffer.encode("latin-1").decode("utf-8")
except UnicodeDecodeError:
return unicode_buffer, line, pos
except UnicodeEncodeError:
return unicode_buffer, line, pos
else:
unicode_buffer = ""
if pos == len(line):
line += decoded
else:
line = line[:pos] + decoded + line[pos:]
pos += len(decoded)
else:
if pos == len(line):
line += key
else:
line = line[:pos] + key + line[pos:]
pos += len(key)
return unicode_buffer, line, pos
def history_move(self, n):
try:
current = self.history.current()
except HistoryEmptyException:
pass
else:
if self.line != current and self.line != self.history.top():
self.history.modify(self.line)
if self.history_search_pattern:
self.history.search(self.history_search_pattern, n)
else:
self.history.move(n)
current = self.history.current()
if self.line != current:
self.line = self.history.current()
self.pos = len(self.line)
def add_to_history(self):
self.history_backup.fast_forward()
self.history_backup.add(self.line)
self.history = History(self.history_backup)
def move(self, **keywords):
direction = Direction(keywords)
if direction.horizontal():
# Ensure that the pointer is moved utf-char-wise
if self.fm.py3:
if self.question_queue:
umax = len(self.question_queue[0][0]) + 1 - self.wid
else:
umax = len(self.line) + 1
self.pos = direction.move(
direction=direction.right(),
minimum=0,
maximum=umax,
current=self.pos)
else:
if self.question_queue:
uchar = list(self.question_queue[0][0].decode('utf-8', 'ignore'))
upos = len(self.question_queue[0][0][:self.pos].decode('utf-8', 'ignore'))
umax = len(uchar) + 1 - self.wid
else:
uchar = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore'))
umax = len(uchar) + 1
newupos = direction.move(
direction=direction.right(),
minimum=0,
maximum=umax,
current=upos)
self.pos = len(''.join(uchar[:newupos]).encode('utf-8', 'ignore'))
def move_word(self, **keywords):
direction = Direction(keywords)
if direction.horizontal():
self.pos = self.move_by_word(self.line, self.pos, direction.right())
self.on_line_change()
@staticmethod
def move_by_word(line, position, direction):
"""
Returns a new position by moving word-wise in the line
>>> import sys
>>> if sys.version_info < (3, ):
... # Didn't get the unicode test to work on python2, even though
... # it works fine in ranger, even with unicode input...
... line = "ohai world, this is dog"
... else:
... line = "\\u30AA\\u30CF\\u30E8\\u30A6 world, this is dog"
>>> Console.move_by_word(line, 0, -1)
0
>>> Console.move_by_word(line, 0, 1)
5
>>> Console.move_by_word(line, 2, -1)
0
>>> Console.move_by_word(line, 2, 1)
5
>>> Console.move_by_word(line, 15, -2)
5
>>> Console.move_by_word(line, 15, 2)
21
>>> Console.move_by_word(line, 24, -1)
21
>>> Console.move_by_word(line, 24, 1)
24
"""
word_beginnings = []
seen_whitespace = True
current_word = None
cursor_inside_word = False
# Scan the line for word boundaries and determine position of cursor
for i, char in enumerate(line):
if i == position:
current_word = len(word_beginnings)
if not seen_whitespace:
cursor_inside_word = True
if char == " ":
seen_whitespace = True
elif seen_whitespace:
seen_whitespace = False
word_beginnings.append(i)
word_beginnings.append(len(line))
# Handle corner cases:
if current_word is None:
current_word = len(word_beginnings)
if direction > 0 and cursor_inside_word:
current_word -= 1
if direction < 0 and position == len(line):
current_word -= 1
new_word = current_word + direction
new_word = max(0, min(len(word_beginnings) - 1, new_word))
return word_beginnings[new_word]
def delete_rest(self, direction):
self.tab_deque = None
if direction > 0:
self.copy = self.line[self.pos:]
self.line = self.line[:self.pos]
else:
self.copy = self.line[:self.pos]
self.line = self.line[self.pos:]
self.pos = 0
self.on_line_change()
def paste(self):
if self.pos == len(self.line):
self.line += self.copy
else:
self.line = self.line[:self.pos] + self.copy + self.line[self.pos:]
self.pos += len(self.copy)
self.on_line_change()
def delete_word(self, backward=True):
if self.line:
self.tab_deque = None
if backward:
right_part = self.line[self.pos:]
i = self.pos - 2
while i >= 0 and re.match(
r'[\w\d]', self.line[i], re.UNICODE): # pylint: disable=no-member
i -= 1
self.copy = self.line[i + 1:self.pos]
self.line = self.line[:i + 1] + right_part
self.pos = i + 1
else:
left_part = self.line[:self.pos]
i = self.pos + 1
while i < len(self.line) and re.match(
r'[\w\d]', self.line[i], re.UNICODE): # pylint: disable=no-member
i += 1
self.copy = self.line[self.pos:i]
if i >= len(self.line):
self.line = left_part
self.pos = len(self.line)
else:
self.line = left_part + self.line[i:]
self.pos = len(left_part)
self.on_line_change()
def delete(self, mod):
self.tab_deque = None
if mod == -1 and self.pos == 0:
if not self.line:
self.close(trigger_cancel_function=False)
return
# Delete utf-char-wise
if self.fm.py3:
left_part = self.line[:self.pos + mod]
self.pos = len(left_part)
self.line = left_part + self.line[self.pos + 1:]
else:
uchar = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore')) + mod
left_part = ''.join(uchar[:upos]).encode('utf-8', 'ignore')
self.pos = len(left_part)
self.line = left_part + ''.join(uchar[upos + 1:]).encode('utf-8', 'ignore')
self.on_line_change()
def execute(self, cmd=None):
if self.question_queue and cmd is None:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 1:
self._answer_question(answers[0])
else:
self.question_queue.pop(0)
return
self.allow_close = True
if cmd:
cmd.execute()
else:
self.fm.execute_console(self.line)
if self.allow_close:
self._close_command_prompt(trigger_cancel_function=False)
def _get_cmd(self, quiet=False):
try:
command_class = self.get_cmd_class()
except IndexError:
return None
except KeyError:
if not quiet:
self.fm.notify("Command not found: `%s'" % self.line.split()[0], bad=True)
return None
return command_class(self.line)
def get_cmd_class(self):
return self.fm.commands.get_command(self.line.split()[0], abbrev=True)
def _get_tab(self, tabnum):
if ' ' in self.line:
cmd = self._get_cmd()
if cmd:
return cmd.tab(tabnum)
return None
return self.fm.commands.command_generator(self.line)
def tab(self, tabnum=1):
if self.tab_deque is None:
tab_result = self._get_tab(tabnum)
if tab_result is None:
pass
elif isinstance(tab_result, str):
self.line = tab_result
self.pos = len(tab_result)
self.on_line_change()
elif hasattr(tab_result, '__iter__'):
self.tab_deque = deque(tab_result)
self.tab_deque.appendleft(self.line)
if self.tab_deque is not None:
self.tab_deque.rotate(-tabnum)
self.line = self.tab_deque[0]
self.pos = len(self.line)
self.on_line_change()
def on_line_change(self):
self.history_search_pattern = self.line
try:
cls = self.get_cmd_class()
except (KeyError, ValueError, IndexError):
pass
else:
cmd = cls(self.line)
if cmd and cmd.quick():
cmd.quickly_executed = True
self.execute(cmd)
def ask(self, text, callback, choices=None):
"""Open a question prompt with predefined choices
The "text" is displayed as the question text and should include a list
of possible keys that the user can type. The "callback" is a function
that is called when the question is answered. It only gets the answer
as an argument. "choices" is a tuple of one-letter strings that can be
typed in by the user. Every other input gets ignored, except <Enter>
and <ESC>.
The first choice is used when the user presses <Enter>, the second
choice is used when the user presses <ESC>.
"""
self.question_queue.append(
(text, callback, choices if choices is not None else ['y', 'n']))
class Tab(FileManagerAware, SettingsAware):
def __init__(self, path):
self.thisdir = None # Current Working Directory
self._thisfile = None # Current File
self.history = History(self.settings.max_history_size, unique=False)
self.last_search = None
self.pointer = 0
self.path = abspath(expanduser(path))
self.pathway = ()
# NOTE: in the line below, weak=True works only in python3. In python2,
# weak references are not equal to the original object when tested with
# "==", and this breaks _set_thisfile_from_signal and _on_tab_change.
self.fm.signal_bind('move', self._set_thisfile_from_signal, priority=0.1,
weak=(sys.version > '3'))
self.fm.signal_bind('tab.change', self._on_tab_change,
weak=(sys.version > '3'))
def _set_thisfile_from_signal(self, signal):
if self == signal.tab:
self._thisfile = signal.new
if self == self.fm.thistab:
self.pointer = self.thisdir.pointer
def _on_tab_change(self, signal):
if self == signal.new and self.thisdir:
# restore the pointer whenever this tab is reopened
self.thisdir.pointer = self.pointer
self.thisdir.correct_pointer()
def _set_thisfile(self, value):
if value is not self._thisfile:
previous = self._thisfile
self.fm.signal_emit('move', previous=previous, new=value, tab=self)
def _get_thisfile(self):
return self._thisfile
thisfile = property(_get_thisfile, _set_thisfile)
def at_level(self, level):
"""Returns the FileSystemObject at the given level.
level >0 => previews
level 0 => current file/directory
level <0 => parent directories
"""
if level <= 0:
try:
return self.pathway[level - 1]
except IndexError:
return None
else:
directory = self.thisdir
for i in range(level):
if directory is None:
return None
if directory.is_directory:
directory = directory.pointed_obj
else:
return None
return directory
def get_selection(self):
if self.thisdir:
if self.thisdir.marked_items:
return self.thisdir.get_selection()
elif self._thisfile:
return [self._thisfile]
return []
def assign_cursor_positions_for_subdirs(self):
"""Assign correct cursor positions for subdirectories"""
last_path = None
for path in reversed(self.pathway):
if last_path is None:
last_path = path
continue
path.move_to_obj(last_path)
last_path = path
def ensure_correct_pointer(self):
if self.thisdir:
self.thisdir.correct_pointer()
def history_go(self, relative):
"""Move relative in history"""
if self.history:
self.history.move(relative).go(history=False)
def inherit_history(self, other_history):
self.history.rebase(other_history)
def enter_dir(self, path, history = True):
"""Enter given path"""
# TODO: Ensure that there is always a self.thisdir
if path is None: return
path = str(path)
previous = self.thisdir
# get the absolute path
path = normpath(join(self.path, expanduser(path)))
if not isdir(path):
return False
new_thisdir = self.fm.get_directory(path)
try:
os.chdir(path)
except:
return True
self.path = path
self.thisdir = new_thisdir
self.thisdir.load_content_if_outdated()
# build the pathway, a tuple of directory objects which lie
# on the path to the current directory.
if path == '/':
self.pathway = (self.fm.get_directory('/'), )
else:
pathway = []
currentpath = '/'
for dir in path.split('/'):
currentpath = join(currentpath, dir)
pathway.append(self.fm.get_directory(currentpath))
self.pathway = tuple(pathway)
self.assign_cursor_positions_for_subdirs()
# set the current file.
self.thisdir.sort_directories_first = self.fm.settings.sort_directories_first
self.thisdir.sort_reverse = self.fm.settings.sort_reverse
self.thisdir.sort_if_outdated()
if previous and previous.path != path:
self.thisfile = self.thisdir.pointed_obj
else:
# This avoids setting self.pointer (through the 'move' signal) and
# is required so that you can use enter_dir when switching tabs
# without messing up the pointer.
self._thisfile = self.thisdir.pointed_obj
if history:
self.history.add(new_thisdir)
self.fm.signal_emit('cd', previous=previous, new=self.thisdir)
return True
def __repr__(self):
return "<Tab '%s'>" % self.thisdir
class Console(Widget):
visible = False
last_cursor_mode = None
history_search_pattern = None
prompt = ':'
copy = ''
tab_deque = None
original_line = None
history = None
history_backup = None
override = None
allow_close = False
historypath = None
def __init__(self, win):
Widget.__init__(self, win)
self.clear()
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.arg.clean:
self.historypath = self.fm.confpath('history')
try:
f = open(self.historypath, 'r')
except:
pass
else:
for line in f:
self.history.add(line[:-1])
f.close()
self.history_backup = History(self.history)
def destroy(self):
# save history to files
if ranger.arg.clean or not self.settings.save_console_history:
return
if self.historypath:
try:
f = open(self.historypath, 'w')
except:
pass
else:
for entry in self.history_backup:
f.write(entry + '\n')
f.close()
def draw(self):
self.win.erase()
self.addstr(0, 0, self.prompt)
line = WideString(self.line)
overflow = -self.wid + len(self.prompt) + len(line) + 1
if overflow > 0:
self.addstr(str(line[overflow:]))
else:
self.addstr(self.line)
def finalize(self):
try:
pos = uwid(self.line[0:self.pos]) + len(self.prompt)
self.fm.ui.win.move(self.y, self.x + min(self.wid-1, pos))
except:
pass
def open(self, string='', prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif 'prompt' in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except:
pass
self.allow_close = False
self.tab_deque = None
self.focused = True
self.visible = True
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add('')
return True
def close(self, trigger_cancel_function=True):
if trigger_cancel_function:
cmd = self._get_cmd(quiet=True)
if cmd:
try:
cmd.cancel()
except Exception as error:
self.fm.notify(error)
if self.last_cursor_mode is not None:
try:
curses.curs_set(self.last_cursor_mode)
except:
pass
self.last_cursor_mode = None
self.add_to_history()
self.tab_deque = None
self.clear()
self.__class__ = Console
self.focused = False
self.visible = False
if hasattr(self, 'on_close'):
self.on_close()
def clear(self):
self.pos = 0
self.line = ''
def press(self, key):
self.env.keymaps.use_keymap('console')
if not self.fm.ui.press(key):
self.type_key(key)
def type_key(self, key):
self.tab_deque = None
if isinstance(key, int):
try:
key = chr(key)
except ValueError:
return
if self.fm.py3:
self.unicode_buffer += key
try:
decoded = self.unicode_buffer.encode("latin-1").decode("utf-8")
except UnicodeDecodeError:
return
except UnicodeEncodeError:
return
else:
self.unicode_buffer = ""
if self.pos == len(self.line):
self.line += decoded
else:
pos = self.pos
self.line = self.line[:pos] + decoded + self.line[pos:]
self.pos += len(decoded)
else:
if self.pos == len(self.line):
self.line += key
else:
self.line = self.line[:self.pos] + key + self.line[self.pos:]
self.pos += len(key)
self.on_line_change()
def history_move(self, n):
try:
current = self.history.current()
except HistoryEmptyException:
pass
else:
if self.line != current and self.line != self.history.top():
self.history.modify(self.line)
if self.history_search_pattern:
self.history.search(self.history_search_pattern, n)
else:
self.history.move(n)
current = self.history.current()
if self.line != current:
self.line = self.history.current()
self.pos = len(self.line)
def add_to_history(self):
self.history_backup.fast_forward()
self.history_backup.add(self.line)
self.history = History(self.history_backup)
def move(self, **keywords):
direction = Direction(keywords)
if direction.horizontal():
# Ensure that the pointer is moved utf-char-wise
if self.fm.py3:
self.pos = direction.move(
direction=direction.right(),
minimum=0,
maximum=len(self.line) + 1,
current=self.pos)
else:
if self.fm.py3:
uc = list(self.line)
upos = len(self.line[:self.pos])
else:
uc = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore'))
newupos = direction.move(
direction=direction.right(),
minimum=0,
maximum=len(uc) + 1,
current=upos)
self.pos = len(''.join(uc[:newupos]).encode('utf-8', 'ignore'))
def delete_rest(self, direction):
self.tab_deque = None
if direction > 0:
self.copy = self.line[self.pos:]
self.line = self.line[:self.pos]
else:
self.copy = self.line[:self.pos]
self.line = self.line[self.pos:]
self.pos = 0
self.on_line_change()
def paste(self):
if self.pos == len(self.line):
self.line += self.copy
else:
self.line = self.line[:self.pos] + self.copy + self.line[self.pos:]
self.pos += len(self.copy)
self.on_line_change()
def delete_word(self, backward=True):
if self.line:
self.tab_deque = None
if backward:
right_part = self.line[self.pos:]
i = self.pos - 2
while i >= 0 and re.match(r'[\w\d]', self.line[i], re.U):
i -= 1
self.copy = self.line[i + 1:self.pos]
self.line = self.line[:i + 1] + right_part
self.pos = i + 1
else:
left_part = self.line[:self.pos]
i = self.pos + 1
while i < len(self.line) and re.match(r'[\w\d]', self.line[i], re.U):
i += 1
self.copy = self.line[self.pos:i]
if i >= len(self.line):
self.line = left_part
self.pos = len(self.line)
else:
self.line = left_part + self.line[i:]
self.pos = len(left_part)
self.on_line_change()
def delete(self, mod):
self.tab_deque = None
if mod == -1 and self.pos == 0:
if not self.line:
self.close(trigger_cancel_function=False)
return
# Delete utf-char-wise
if self.fm.py3:
left_part = self.line[:self.pos + mod]
self.pos = len(left_part)
self.line = left_part + self.line[self.pos + 1:]
else:
uc = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore')) + mod
left_part = ''.join(uc[:upos]).encode('utf-8', 'ignore')
self.pos = len(left_part)
self.line = left_part + ''.join(uc[upos+1:]).encode('utf-8', 'ignore')
self.on_line_change()
def execute(self, cmd=None):
self.allow_close = True
self.fm.execute_console(self.line)
if self.allow_close:
self.close(trigger_cancel_function=False)
def _get_cmd(self, quiet=False):
try:
command_class = self._get_cmd_class()
except KeyError:
if not quiet:
error = "Command not found: `%s'" % self.line.split()[0]
self.fm.notify(error, bad=True)
except:
return None
else:
return command_class(self.line)
def _get_cmd_class(self):
return self.fm.commands.get_command(self.line.split()[0])
def _get_tab(self):
if ' ' in self.line:
cmd = self._get_cmd()
if cmd:
return cmd.tab()
else:
return None
return self.fm.commands.command_generator(self.line)
def tab(self, n=1):
if self.tab_deque is None:
tab_result = self._get_tab()
if isinstance(tab_result, str):
self.line = tab_result
self.pos = len(tab_result)
self.on_line_change()
elif tab_result == None:
pass
elif hasattr(tab_result, '__iter__'):
self.tab_deque = deque(tab_result)
self.tab_deque.appendleft(self.line)
if self.tab_deque is not None:
self.tab_deque.rotate(-n)
self.line = self.tab_deque[0]
self.pos = len(self.line)
self.on_line_change()
def on_line_change(self):
self.history_search_pattern = self.line
try:
cls = self._get_cmd_class()
except (KeyError, ValueError, IndexError):
pass
else:
cmd = cls(self.line)
if cmd and cmd.quick():
self.execute(cmd)
class Console(Widget):
visible = False
last_cursor_mode = None
history_search_pattern = None
prompt = ':'
copy = ''
tab_deque = None
original_line = None
history = None
history_backup = None
override = None
allow_close = False
historypath = None
wait_for_command_input = False
unicode_buffer = ""
def __init__(self, win):
Widget.__init__(self, win)
self.clear()
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.arg.clean:
self.historypath = self.fm.confpath('history')
try:
f = open(self.historypath, 'r')
except:
pass
else:
for line in f:
self.history.add(line[:-1])
f.close()
self.line = ""
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def destroy(self):
# save history to files
if ranger.arg.clean or not self.settings.save_console_history:
return
if self.historypath:
try:
f = open(self.historypath, 'w')
except:
pass
else:
for entry in self.history_backup:
try:
f.write(entry + '\n')
except UnicodeEncodeError:
pass
f.close()
def draw(self):
self.win.erase()
if self.question_queue:
assert isinstance(self.question_queue[0], tuple)
assert len(self.question_queue[0]) == 3
self.addstr(0, 0, self.question_queue[0][0])
return
self.addstr(0, 0, self.prompt)
line = WideString(self.line)
overflow = -self.wid + len(self.prompt) + len(line) + 1
if overflow > 0:
self.addstr(0, len(self.prompt), str(line[overflow:]))
else:
self.addstr(0, len(self.prompt), self.line)
def finalize(self):
move = self.fm.ui.win.move
if self.question_queue:
try:
move(self.y, len(self.question_queue[0][0]))
except:
pass
else:
try:
pos = uwid(self.line[0:self.pos]) + len(self.prompt)
move(self.y, self.x + min(self.wid-1, pos))
except:
pass
def open(self, string='', prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif 'prompt' in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except:
pass
self.allow_close = False
self.tab_deque = None
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add('')
self.wait_for_command_input = True
self.on_line_change()
return True
def close(self, trigger_cancel_function=True):
if self.question_queue:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 2:
self._answer_question(answers[1])
else:
self._close_command_prompt(trigger_cancel_function)
def _close_command_prompt(self, trigger_cancel_function=True):
if trigger_cancel_function:
cmd = self._get_cmd(quiet=True)
if cmd:
try:
cmd.cancel()
except Exception as error:
self.fm.notify(error)
if self.last_cursor_mode is not None:
try:
curses.curs_set(self.last_cursor_mode)
except:
pass
self.last_cursor_mode = None
self.fm.hide_console_info()
self.add_to_history()
self.tab_deque = None
self.clear()
self.__class__ = Console
self.wait_for_command_input = False
def clear(self):
self.pos = 0
self.line = ''
def press(self, key):
if not self.fm.ui.quick_jump.press(key):
self.fm.ui.keymaps.use_keymap('console')
if not self.fm.ui.press(key):
self.type_key(key)
def _answer_question(self, answer):
if not self.question_queue:
return False
question = self.question_queue[0]
text, callback, answers = question
if answer in answers:
self.question_queue.pop(0)
callback(answer)
return True
return False
def type_key(self, key):
self.tab_deque = None
line = "" if self.question_queue else self.line
result = self._add_character(key, self.unicode_buffer, line, self.pos)
if result[1] == line:
# line didn't change, so we don't need to do anything, just update
# the unicode _buffer.
self.unicode_buffer = result[0]
return
if self.question_queue:
self.unicode_buffer, answer, self.pos = result
self._answer_question(answer)
else:
self.unicode_buffer, self.line, self.pos = result
self.on_line_change()
def _add_character(self, key, unicode_buffer, line, pos):
# Takes the pressed key, a string "unicode_buffer" containing a
# potentially incomplete unicode character, the current line and the
# position of the cursor inside the line.
# This function returns the new unicode buffer, the modified line and
# position.
if isinstance(key, int):
try:
key = chr(key)
except ValueError:
return unicode_buffer, line, pos
if self.fm.py3:
if len(unicode_buffer) >= 4:
unicode_buffer = ""
if ord(key) in range(0, 256):
unicode_buffer += key
try:
decoded = unicode_buffer.encode("latin-1").decode("utf-8")
except UnicodeDecodeError:
return unicode_buffer, line, pos
except UnicodeEncodeError:
return unicode_buffer, line, pos
else:
unicode_buffer = ""
if pos == len(line):
line += decoded
else:
line = line[:pos] + decoded + line[pos:]
pos += len(decoded)
else:
if pos == len(line):
line += key
else:
line = line[:pos] + key + line[pos:]
pos += len(key)
return unicode_buffer, line, pos
def history_move(self, n):
try:
current = self.history.current()
except HistoryEmptyException:
pass
else:
if self.line != current and self.line != self.history.top():
self.history.modify(self.line)
if self.history_search_pattern:
self.history.search(self.history_search_pattern, n)
else:
self.history.move(n)
current = self.history.current()
if self.line != current:
self.line = self.history.current()
self.pos = len(self.line)
def add_to_history(self):
self.history_backup.fast_forward()
self.history_backup.add(self.line)
self.history = History(self.history_backup)
def move(self, **keywords):
direction = Direction(keywords)
if direction.horizontal():
# Ensure that the pointer is moved utf-char-wise
if self.fm.py3:
self.pos = direction.move(
direction=direction.right(),
minimum=0,
maximum=len(self.line) + 1,
current=self.pos)
else:
if self.fm.py3:
uc = list(self.line)
upos = len(self.line[:self.pos])
else:
uc = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore'))
newupos = direction.move(
direction=direction.right(),
minimum=0,
maximum=len(uc) + 1,
current=upos)
self.pos = len(''.join(uc[:newupos]).encode('utf-8', 'ignore'))
def delete_rest(self, direction):
self.tab_deque = None
if direction > 0:
self.copy = self.line[self.pos:]
self.line = self.line[:self.pos]
else:
self.copy = self.line[:self.pos]
self.line = self.line[self.pos:]
self.pos = 0
self.on_line_change()
def paste(self):
if self.pos == len(self.line):
self.line += self.copy
else:
self.line = self.line[:self.pos] + self.copy + self.line[self.pos:]
self.pos += len(self.copy)
self.on_line_change()
def delete_word(self, backward=True):
if self.line:
self.tab_deque = None
if backward:
right_part = self.line[self.pos:]
i = self.pos - 2
while i >= 0 and re.match(r'[\w\d]', self.line[i], re.U):
i -= 1
self.copy = self.line[i + 1:self.pos]
self.line = self.line[:i + 1] + right_part
self.pos = i + 1
else:
left_part = self.line[:self.pos]
i = self.pos + 1
while i < len(self.line) and re.match(r'[\w\d]', self.line[i], re.U):
i += 1
self.copy = self.line[self.pos:i]
if i >= len(self.line):
self.line = left_part
self.pos = len(self.line)
else:
self.line = left_part + self.line[i:]
self.pos = len(left_part)
self.on_line_change()
def delete(self, mod):
self.tab_deque = None
if mod == -1 and self.pos == 0:
if not self.line:
self.close(trigger_cancel_function=False)
return
# Delete utf-char-wise
if self.fm.py3:
left_part = self.line[:self.pos + mod]
self.pos = len(left_part)
self.line = left_part + self.line[self.pos + 1:]
else:
uc = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore')) + mod
left_part = ''.join(uc[:upos]).encode('utf-8', 'ignore')
self.pos = len(left_part)
self.line = left_part + ''.join(uc[upos+1:]).encode('utf-8', 'ignore')
self.on_line_change()
def execute(self, cmd=None):
if self.question_queue and cmd is None:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 1:
self._answer_question(answers[0])
else:
self.question_queue.pop(0)
return
self.allow_close = True
self.fm.execute_console(self.line)
if self.allow_close:
self._close_command_prompt(trigger_cancel_function=False)
def _get_cmd(self, quiet=False):
try:
command_class = self._get_cmd_class()
except KeyError:
if not quiet:
error = "Command not found: `%s'" % self.line.split()[0]
self.fm.notify(error, bad=True)
except:
return None
else:
return command_class(self.line)
def _get_cmd_class(self):
return self.fm.commands.get_command(self.line.split()[0])
def _get_tab(self):
if ' ' in self.line:
cmd = self._get_cmd()
if cmd:
return cmd.tab()
else:
return None
return self.fm.commands.command_generator(self.line)
def tab(self, n=1):
if self.tab_deque is None:
tab_result = self._get_tab()
if isinstance(tab_result, str):
self.line = tab_result
self.pos = len(tab_result)
self.on_line_change()
elif tab_result == None:
pass
elif hasattr(tab_result, '__iter__'):
self.tab_deque = deque(tab_result)
self.tab_deque.appendleft(self.line)
if self.tab_deque is not None:
self.tab_deque.rotate(-n)
self.line = self.tab_deque[0]
self.pos = len(self.line)
self.on_line_change()
def on_line_change(self):
self.history_search_pattern = self.line
try:
cls = self._get_cmd_class()
except (KeyError, ValueError, IndexError):
pass
else:
cmd = cls(self.line)
if cmd and cmd.quick():
self.execute(cmd)
def ask(self, text, callback, choices=['y', 'n']):
"""Open a question prompt with predefined choices
The "text" is displayed as the question text and should include a list
of possible keys that the user can type. The "callback" is a function
that is called when the question is answered. It only gets the answer
as an argument. "choices" is a tuple of one-letter strings that can be
typed in by the user. Every other input gets ignored, except <Enter>
and <ESC>.
The first choice is used when the user presses <Enter>, the second
choice is used when the user presses <ESC>.
"""
self.question_queue.append((text, callback, choices))
def add_to_history(self):
self.history_backup.fast_forward()
self.history_backup.add(self.line)
self.history = History(self.history_backup)
class Console(Widget):
visible = False
last_cursor_mode = None
history_search_pattern = None
prompt = ':'
copy = ''
tab_deque = None
original_line = None
history = None
history_backup = None
override = None
allow_close = False
historypath = None
wait_for_command_input = False
unicode_buffer = ""
def __init__(self, win):
Widget.__init__(self, win)
self.clear()
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.arg.clean:
self.historypath = self.fm.confpath('history')
try:
f = open(self.historypath, 'r')
except:
pass
else:
for line in f:
self.history.add(line[:-1])
f.close()
self.line = ""
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def destroy(self):
# save history to files
if ranger.arg.clean or not self.settings.save_console_history:
return
if self.historypath:
try:
f = open(self.historypath, 'w')
except:
pass
else:
for entry in self.history_backup:
try:
f.write(entry + '\n')
except UnicodeEncodeError:
pass
f.close()
def draw(self):
self.win.erase()
if self.question_queue:
assert isinstance(self.question_queue[0], tuple)
assert len(self.question_queue[0]) == 3
self.addstr(0, 0, self.question_queue[0][0])
return
self.addstr(0, 0, self.prompt)
line = WideString(self.line)
overflow = -self.wid + len(self.prompt) + len(line) + 1
if overflow > 0:
self.addstr(0, len(self.prompt), str(line[overflow:]))
else:
self.addstr(0, len(self.prompt), self.line)
def finalize(self):
move = self.fm.ui.win.move
if self.question_queue:
try:
move(self.y, len(self.question_queue[0][0]))
except:
pass
else:
try:
pos = uwid(self.line[0:self.pos]) + len(self.prompt)
move(self.y, self.x + min(self.wid - 1, pos))
except:
pass
def open(self, string='', prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif 'prompt' in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except:
pass
self.allow_close = False
self.tab_deque = None
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add('')
self.wait_for_command_input = True
self.on_line_change()
return True
def close(self, trigger_cancel_function=True):
if self.question_queue:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 2:
self._answer_question(answers[1])
else:
self._close_command_prompt(trigger_cancel_function)
def _close_command_prompt(self, trigger_cancel_function=True):
if trigger_cancel_function:
cmd = self._get_cmd(quiet=True)
if cmd:
try:
cmd.cancel()
except Exception as error:
self.fm.notify(error)
if self.last_cursor_mode is not None:
try:
curses.curs_set(self.last_cursor_mode)
except:
pass
self.last_cursor_mode = None
self.fm.hide_console_info()
self.add_to_history()
self.tab_deque = None
self.clear()
self.__class__ = Console
self.wait_for_command_input = False
def clear(self):
self.pos = 0
self.line = ''
def press(self, key):
if not self.fm.ui.quick_jump.press(key):
self.fm.ui.keymaps.use_keymap('console')
if not self.fm.ui.press(key):
self.type_key(key)
def _answer_question(self, answer):
if not self.question_queue:
return False
question = self.question_queue[0]
text, callback, answers = question
if answer in answers:
self.question_queue.pop(0)
callback(answer)
return True
return False
def type_key(self, key):
self.tab_deque = None
line = "" if self.question_queue else self.line
result = self._add_character(key, self.unicode_buffer, line, self.pos)
if result[1] == line:
# line didn't change, so we don't need to do anything, just update
# the unicode _buffer.
self.unicode_buffer = result[0]
return
if self.question_queue:
self.unicode_buffer, answer, self.pos = result
self._answer_question(answer)
else:
self.unicode_buffer, self.line, self.pos = result
self.on_line_change()
def _add_character(self, key, unicode_buffer, line, pos):
# Takes the pressed key, a string "unicode_buffer" containing a
# potentially incomplete unicode character, the current line and the
# position of the cursor inside the line.
# This function returns the new unicode buffer, the modified line and
# position.
if isinstance(key, int):
try:
key = chr(key)
except ValueError:
return unicode_buffer, line, pos
if self.fm.py3:
if len(unicode_buffer) >= 4:
unicode_buffer = ""
if ord(key) in range(0, 256):
unicode_buffer += key
try:
decoded = unicode_buffer.encode("latin-1").decode("utf-8")
except UnicodeDecodeError:
return unicode_buffer, line, pos
except UnicodeEncodeError:
return unicode_buffer, line, pos
else:
unicode_buffer = ""
if pos == len(line):
line += decoded
else:
line = line[:pos] + decoded + line[pos:]
pos += len(decoded)
else:
if pos == len(line):
line += key
else:
line = line[:pos] + key + line[pos:]
pos += len(key)
return unicode_buffer, line, pos
def history_move(self, n):
try:
current = self.history.current()
except HistoryEmptyException:
pass
else:
if self.line != current and self.line != self.history.top():
self.history.modify(self.line)
if self.history_search_pattern:
self.history.search(self.history_search_pattern, n)
else:
self.history.move(n)
current = self.history.current()
if self.line != current:
self.line = self.history.current()
self.pos = len(self.line)
def add_to_history(self):
self.history_backup.fast_forward()
self.history_backup.add(self.line)
self.history = History(self.history_backup)
def move(self, **keywords):
direction = Direction(keywords)
if direction.horizontal():
# Ensure that the pointer is moved utf-char-wise
if self.fm.py3:
self.pos = direction.move(direction=direction.right(),
minimum=0,
maximum=len(self.line) + 1,
current=self.pos)
else:
if self.fm.py3:
uc = list(self.line)
upos = len(self.line[:self.pos])
else:
uc = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore'))
newupos = direction.move(direction=direction.right(),
minimum=0,
maximum=len(uc) + 1,
current=upos)
self.pos = len(''.join(uc[:newupos]).encode('utf-8', 'ignore'))
def delete_rest(self, direction):
self.tab_deque = None
if direction > 0:
self.copy = self.line[self.pos:]
self.line = self.line[:self.pos]
else:
self.copy = self.line[:self.pos]
self.line = self.line[self.pos:]
self.pos = 0
self.on_line_change()
def paste(self):
if self.pos == len(self.line):
self.line += self.copy
else:
self.line = self.line[:self.pos] + self.copy + self.line[self.pos:]
self.pos += len(self.copy)
self.on_line_change()
def delete_word(self, backward=True):
if self.line:
self.tab_deque = None
if backward:
right_part = self.line[self.pos:]
i = self.pos - 2
while i >= 0 and re.match(r'[\w\d]', self.line[i], re.U):
i -= 1
self.copy = self.line[i + 1:self.pos]
self.line = self.line[:i + 1] + right_part
self.pos = i + 1
else:
left_part = self.line[:self.pos]
i = self.pos + 1
while i < len(self.line) and re.match(r'[\w\d]', self.line[i],
re.U):
i += 1
self.copy = self.line[self.pos:i]
if i >= len(self.line):
self.line = left_part
self.pos = len(self.line)
else:
self.line = left_part + self.line[i:]
self.pos = len(left_part)
self.on_line_change()
def delete(self, mod):
self.tab_deque = None
if mod == -1 and self.pos == 0:
if not self.line:
self.close(trigger_cancel_function=False)
return
# Delete utf-char-wise
if self.fm.py3:
left_part = self.line[:self.pos + mod]
self.pos = len(left_part)
self.line = left_part + self.line[self.pos + 1:]
else:
uc = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore')) + mod
left_part = ''.join(uc[:upos]).encode('utf-8', 'ignore')
self.pos = len(left_part)
self.line = left_part + ''.join(uc[upos + 1:]).encode(
'utf-8', 'ignore')
self.on_line_change()
def execute(self, cmd=None):
if self.question_queue and cmd is None:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 1:
self._answer_question(answers[0])
else:
self.question_queue.pop(0)
return
self.allow_close = True
self.fm.execute_console(self.line)
if self.allow_close:
self._close_command_prompt(trigger_cancel_function=False)
def _get_cmd(self, quiet=False):
try:
command_class = self._get_cmd_class()
except KeyError:
if not quiet:
error = "Command not found: `%s'" % self.line.split()[0]
self.fm.notify(error, bad=True)
except:
return None
else:
return command_class(self.line)
def _get_cmd_class(self):
return self.fm.commands.get_command(self.line.split()[0])
def _get_tab(self):
if ' ' in self.line:
cmd = self._get_cmd()
if cmd:
return cmd.tab()
else:
return None
return self.fm.commands.command_generator(self.line)
def tab(self, n=1):
if self.tab_deque is None:
tab_result = self._get_tab()
if isinstance(tab_result, str):
self.line = tab_result
self.pos = len(tab_result)
self.on_line_change()
elif tab_result == None:
pass
elif hasattr(tab_result, '__iter__'):
self.tab_deque = deque(tab_result)
self.tab_deque.appendleft(self.line)
if self.tab_deque is not None:
self.tab_deque.rotate(-n)
self.line = self.tab_deque[0]
self.pos = len(self.line)
self.on_line_change()
def on_line_change(self):
self.history_search_pattern = self.line
try:
cls = self._get_cmd_class()
except (KeyError, ValueError, IndexError):
pass
else:
cmd = cls(self.line)
if cmd and cmd.quick():
self.execute(cmd)
def ask(self, text, callback, choices=['y', 'n']):
"""Open a question prompt with predefined choices
The "text" is displayed as the question text and should include a list
of possible keys that the user can type. The "callback" is a function
that is called when the question is answered. It only gets the answer
as an argument. "choices" is a tuple of one-letter strings that can be
typed in by the user. Every other input gets ignored, except <Enter>
and <ESC>.
The first choice is used when the user presses <Enter>, the second
choice is used when the user presses <ESC>.
"""
self.question_queue.append((text, callback, choices))
class Environment(SettingsAware, SignalDispatcher):
"""
A collection of data which is relevant for more than one class.
"""
cwd = None # current directory
copy = None
cmd = None
cut = None
termsize = None
history = None
directories = None
last_search = None
pathway = None
path = None
def __init__(self, path):
SignalDispatcher.__init__(self)
self.path = abspath(expanduser(path))
self._cf = None
self.pathway = ()
self.directories = {}
self.keybuffer = KeyBuffer()
self.keymaps = KeyMaps(self.keybuffer)
self.copy = set()
self.history = History(self.settings.max_history_size, unique=False)
try:
self.username = pwd.getpwuid(os.geteuid()).pw_name
except:
self.username = '******' + str(os.geteuid())
self.hostname = socket.gethostname()
self.home_path = os.path.expanduser('~')
self.signal_bind('move', self._set_cf_from_signal, priority=0.1,
weak=True)
def _set_cf_from_signal(self, signal):
self._cf = signal.new
def _set_cf(self, value):
if value is not self._cf:
previous = self._cf
self.signal_emit('move', previous=previous, new=value)
def _get_cf(self):
return self._cf
cf = property(_get_cf, _set_cf)
def key_append(self, key):
"""Append a key to the keybuffer"""
# special keys:
if key == curses.KEY_RESIZE:
self.keybuffer.clear()
self.keybuffer.add(key)
def key_clear(self):
"""Clear the keybuffer"""
self.keybuffer.clear()
def at_level(self, level):
"""
Returns the FileSystemObject at the given level.
level >0 => previews
level 0 => current file/directory
level <0 => parent directories
"""
if level <= 0:
try:
return self.pathway[level - 1]
except IndexError:
return None
else:
directory = self.cf
for i in range(level - 1):
if directory is None:
return None
if directory.is_directory:
directory = directory.pointed_obj
else:
return None
try:
return self.directories[directory.path]
except AttributeError:
return None
except KeyError:
return directory
def garbage_collect(self, age, tabs):
"""Delete unused directory objects"""
for key in tuple(self.directories):
value = self.directories[key]
if age != -1:
if not value.is_older_than(age) or value in self.pathway:
continue
if value in tabs.values():
continue
del self.directories[key]
if value.is_directory:
value.files = None
self.settings.signal_garbage_collect()
self.signal_garbage_collect()
def get_selection(self):
if self.cwd:
return self.cwd.get_selection()
return set()
def get_directory(self, path):
"""Get the directory object at the given path"""
path = abspath(path)
try:
return self.directories[path]
except KeyError:
obj = Directory(path)
self.directories[path] = obj
return obj
def get_free_space(self, path):
stat = os.statvfs(path)
return stat.f_bavail * stat.f_bsize
def assign_cursor_positions_for_subdirs(self):
"""Assign correct cursor positions for subdirectories"""
last_path = None
for path in reversed(self.pathway):
if last_path is None:
last_path = path
continue
path.move_to_obj(last_path)
last_path = path
def ensure_correct_pointer(self):
if self.cwd:
self.cwd.correct_pointer()
def history_go(self, relative):
"""Move relative in history"""
if self.history:
self.history.move(relative).go(history=False)
def enter_dir(self, path, history = True):
"""Enter given path"""
if path is None: return
path = str(path)
previous = self.cwd
# get the absolute path
path = normpath(join(self.path, expanduser(path)))
if not isdir(path):
return False
new_cwd = self.get_directory(path)
try:
os.chdir(path)
except:
return True
self.path = path
self.cwd = new_cwd
self.cwd.load_content_if_outdated()
# build the pathway, a tuple of directory objects which lie
# on the path to the current directory.
if path == '/':
self.pathway = (self.get_directory('/'), )
else:
pathway = []
currentpath = '/'
for dir in path.split('/'):
currentpath = join(currentpath, dir)
pathway.append(self.get_directory(currentpath))
self.pathway = tuple(pathway)
self.assign_cursor_positions_for_subdirs()
# set the current file.
self.cwd.sort_directories_first = self.settings.sort_directories_first
self.cwd.sort_reverse = self.settings.sort_reverse
self.cwd.sort_if_outdated()
self.cf = self.cwd.pointed_obj
if history:
self.history.add(new_cwd)
self.signal_emit('cd', previous=previous, new=self.cwd)
return True
class Tab(FileManagerAware, SettingsAware): # pylint: disable=too-many-instance-attributes
def __init__(self, path):
self.thisdir = None # Current Working Directory
self._thisfile = None # Current File
self.history = History(self.settings.max_history_size, unique=False)
self.last_search = None
self.pointer = 0
self.path = abspath(expanduser(path))
self.pathway = ()
# NOTE: in the line below, weak=True works only in python3. In python2,
# weak references are not equal to the original object when tested with
# "==", and this breaks _set_thisfile_from_signal and _on_tab_change.
self.fm.signal_bind('move', self._set_thisfile_from_signal,
priority=settings.SIGNAL_PRIORITY_AFTER_SYNC,
weak=(sys.version_info[0] >= 3))
self.fm.signal_bind('tab.change', self._on_tab_change,
weak=(sys.version_info[0] >= 3))
def _set_thisfile_from_signal(self, signal):
if self == signal.tab:
self._thisfile = signal.new
if self == self.fm.thistab:
self.pointer = self.thisdir.pointer
def _on_tab_change(self, signal):
if self == signal.new and self.thisdir:
# restore the pointer whenever this tab is reopened
self.thisdir.pointer = self.pointer
self.thisdir.correct_pointer()
def _set_thisfile(self, value):
if value is not self._thisfile:
previous = self._thisfile
self.fm.signal_emit('move', previous=previous, new=value, tab=self)
def _get_thisfile(self):
return self._thisfile
thisfile = property(_get_thisfile, _set_thisfile)
def at_level(self, level):
"""Returns the FileSystemObject at the given level.
level >0 => previews
level 0 => current file/directory
level <0 => parent directories
"""
if level <= 0:
try:
return self.pathway[level - 1]
except IndexError:
return None
else:
directory = self.thisdir
for _ in range(level):
if directory is None:
return None
if directory.is_directory:
directory = directory.pointed_obj
else:
return None
return directory
def get_selection(self):
if self.thisdir:
if self.thisdir.marked_items:
return self.thisdir.get_selection()
elif self._thisfile:
return [self._thisfile]
return []
def assign_cursor_positions_for_subdirs(self): # pylint: disable=invalid-name
"""Assign correct cursor positions for subdirectories"""
last_path = None
for path in reversed(self.pathway):
if last_path is None:
last_path = path
continue
path.move_to_obj(last_path)
last_path = path
def ensure_correct_pointer(self):
if self.thisdir:
self.thisdir.correct_pointer()
def history_go(self, relative):
"""Move relative in history"""
if self.history:
self.history.move(relative).go(history=False)
def inherit_history(self, other_history):
self.history.rebase(other_history)
def enter_dir(self, path, history=True):
"""Enter given path"""
# TODO: Ensure that there is always a self.thisdir
if path is None:
return None
path = str(path)
# clear filter in the folder we're leaving
if self.fm.settings.clear_filters_on_dir_change and self.thisdir:
self.thisdir.filter = None
self.thisdir.refilter()
previous = self.thisdir
# get the absolute path
path = normpath(join(self.path, expanduser(path)))
selectfile = None
if not isdir(path):
selectfile = path
path = dirname(path)
new_thisdir = self.fm.get_directory(path)
try:
os.chdir(path)
except OSError:
return True
self.path = path
self.thisdir = new_thisdir
self.thisdir.load_content_if_outdated()
# build the pathway, a tuple of directory objects which lie
# on the path to the current directory.
if path == '/':
self.pathway = (self.fm.get_directory('/'), )
else:
pathway = []
currentpath = '/'
for comp in path.split('/'):
currentpath = join(currentpath, comp)
pathway.append(self.fm.get_directory(currentpath))
self.pathway = tuple(pathway)
self.assign_cursor_positions_for_subdirs()
# set the current file.
self.thisdir.sort_directories_first = self.fm.settings.sort_directories_first
self.thisdir.sort_reverse = self.fm.settings.sort_reverse
self.thisdir.sort_if_outdated()
if selectfile:
self.thisdir.move_to_obj(selectfile)
if previous and previous.path != path:
self.thisfile = self.thisdir.pointed_obj
else:
# This avoids setting self.pointer (through the 'move' signal) and
# is required so that you can use enter_dir when switching tabs
# without messing up the pointer.
self._thisfile = self.thisdir.pointed_obj
if history:
self.history.add(new_thisdir)
self.fm.signal_emit('cd', previous=previous, new=self.thisdir)
return True
def __repr__(self):
return "<Tab '%s'>" % self.thisdir
class Console(Widget): # pylint: disable=too-many-instance-attributes,too-many-public-methods
visible = False
last_cursor_mode = None
history_search_pattern = None
prompt = ':'
copy = ''
tab_deque = None
original_line = None
history = None
history_backup = None
override = None
allow_close = False
historypath = None
wait_for_command_input = False
unicode_buffer = ""
def __init__(self, win):
Widget.__init__(self, win)
self.pos = 0
self.line = ''
self.history = History(self.settings.max_console_history_size)
# load history from files
if not ranger.args.clean:
self.historypath = self.fm.datapath('history')
if os.path.exists(self.historypath):
try:
with open(self.historypath, "r") as fobj:
try:
for line in fobj:
self.history.add(line[:-1])
except UnicodeDecodeError as ex:
self.fm.notify(
"Failed to parse corrupt history file",
bad=True,
exception=ex,
)
except (OSError, IOError) as ex:
self.fm.notify("Failed to read history file",
bad=True,
exception=ex)
self.history_backup = History(self.history)
# NOTE: the console is considered in the "question mode" when the
# question_queue is non-empty. In that case, the console will draw the
# question instead of the regular console, and the input you give is
# used to answer the question instead of typing in commands.
#
# A question is a tuple of (question_string, callback_func,
# tuple_of_choices). callback_func is a function that is called when
# the question is answered which gets the answer as an argument.
# tuple_of_choices looks like ('y', 'n'). Only one-letter-answers are
# currently supported. Pressing enter uses the first choice whereas
# pressing ESC uses the second choice.
self.question_queue = []
def destroy(self):
# save history to files
if ranger.args.clean or not self.settings.save_console_history:
return
if self.historypath:
try:
with open(self.historypath, 'w') as fobj:
for entry in self.history_backup:
try:
fobj.write(entry + '\n')
except UnicodeEncodeError:
pass
except (OSError, IOError) as ex:
self.fm.notify("Failed to write history file",
bad=True,
exception=ex)
Widget.destroy(self)
def _calculate_offset(self):
wid = self.wid - 2
whalf = wid // 2
if self.pos < whalf or len(self.line) < wid:
return 0
if self.pos > len(self.line) - (wid - whalf):
return len(self.line) - wid
return self.pos - whalf
def draw(self):
self.win.erase()
if self.question_queue:
assert isinstance(self.question_queue[0], tuple)
assert len(self.question_queue[0]) == 3
self.addstr(0, 0, self.question_queue[0][0][self.pos:])
return
self.addstr(0, 0, self.prompt)
line = WideString(self.line)
if line:
x = self._calculate_offset()
self.addstr(0, len(self.prompt), str(line[x:]))
def finalize(self):
move = self.fm.ui.win.move
if self.question_queue:
try:
move(self.y, len(self.question_queue[0][0]))
except curses.error:
pass
else:
try:
x = self._calculate_offset()
pos = uwid(self.line[x:self.pos]) + len(self.prompt)
move(self.y, self.x + min(self.wid - 1, pos))
except curses.error:
pass
def open(self, string='', prompt=None, position=None):
if prompt is not None:
assert isinstance(prompt, str)
self.prompt = prompt
elif 'prompt' in self.__dict__:
del self.prompt
if self.last_cursor_mode is None:
try:
self.last_cursor_mode = curses.curs_set(1)
except curses.error:
pass
self.allow_close = False
self.tab_deque = None
self.unicode_buffer = ""
self.line = string
self.history_search_pattern = self.line
self.pos = len(string)
if position is not None:
self.pos = min(self.pos, position)
self.history_backup.fast_forward()
self.history = History(self.history_backup)
self.history.add('')
self.wait_for_command_input = True
return True
def close(self, trigger_cancel_function=True):
if self.question_queue:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 2:
self._answer_question(answers[1])
else:
self._close_command_prompt(trigger_cancel_function)
def _close_command_prompt(self, trigger_cancel_function=True):
if trigger_cancel_function:
cmd = self._get_cmd(quiet=True)
if cmd:
cmd.cancel()
if self.last_cursor_mode is not None:
try:
curses.curs_set(self.last_cursor_mode)
except curses.error:
pass
self.last_cursor_mode = None
self.fm.hide_console_info()
self.add_to_history()
self.tab_deque = None
self.clear()
self.__class__ = Console
self.wait_for_command_input = False
def clear(self):
self.pos = 0
self.line = ''
def press(self, key):
self.fm.ui.keymaps.use_keymap('console')
if not self.fm.ui.press(key):
self.type_key(key)
def _answer_question(self, answer):
if not self.question_queue:
return False
question = self.question_queue[0]
_, callback, answers = question
if answer in answers:
self.question_queue.pop(0)
callback(answer)
return True
return False
def type_key(self, key):
self.tab_deque = None
line = "" if self.question_queue else self.line
result = self._add_character(key, self.unicode_buffer, line, self.pos)
if result[1] == line:
# line didn't change, so we don't need to do anything, just update
# the unicode _buffer.
self.unicode_buffer = result[0]
return
if self.question_queue:
self.unicode_buffer, answer, _ = result
self._answer_question(answer)
else:
self.unicode_buffer, self.line, self.pos = result
self.on_line_change()
@staticmethod
def _add_character(key, unicode_buffer, line, pos):
# Takes the pressed key, a string "unicode_buffer" containing a
# potentially incomplete unicode character, the current line and the
# position of the cursor inside the line.
# This function returns the new unicode buffer, the modified line and
# position.
if isinstance(key, int):
try:
key = chr(key)
except ValueError:
return unicode_buffer, line, pos
if PY3:
if len(unicode_buffer) >= 4:
unicode_buffer = ""
if ord(key) in range(0, 256):
unicode_buffer += key
try:
decoded = unicode_buffer.encode("latin-1").decode("utf-8")
except UnicodeDecodeError:
return unicode_buffer, line, pos
except UnicodeEncodeError:
return unicode_buffer, line, pos
else:
unicode_buffer = ""
if pos == len(line):
line += decoded
else:
line = line[:pos] + decoded + line[pos:]
pos += len(decoded)
else:
if pos == len(line):
line += key
else:
line = line[:pos] + key + line[pos:]
pos += len(key)
return unicode_buffer, line, pos
def history_move(self, n):
try:
current = self.history.current()
except HistoryEmptyException:
pass
else:
if self.line != current and self.line != self.history.top():
self.history.modify(self.line)
if self.history_search_pattern:
self.history.search(self.history_search_pattern, n)
else:
self.history.move(n)
current = self.history.current()
if self.line != current:
self.line = self.history.current()
self.pos = len(self.line)
def add_to_history(self):
self.history_backup.fast_forward()
self.history_backup.add(self.line)
self.history = History(self.history_backup)
def move(self, **keywords):
direction = Direction(keywords)
if direction.horizontal():
# Ensure that the pointer is moved utf-char-wise
if PY3:
if self.question_queue:
umax = len(self.question_queue[0][0]) + 1 - self.wid
else:
umax = len(self.line) + 1
self.pos = direction.move(direction=direction.right(),
minimum=0,
maximum=umax,
current=self.pos)
else:
if self.question_queue:
uchar = list(self.question_queue[0][0].decode(
'utf-8', 'ignore'))
upos = len(self.question_queue[0][0][:self.pos].decode(
'utf-8', 'ignore'))
umax = len(uchar) + 1 - self.wid
else:
uchar = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore'))
umax = len(uchar) + 1
newupos = direction.move(direction=direction.right(),
minimum=0,
maximum=umax,
current=upos)
self.pos = len(''.join(uchar[:newupos]).encode(
'utf-8', 'ignore'))
def move_word(self, **keywords):
direction = Direction(keywords)
if direction.horizontal():
self.pos = self.move_by_word(self.line, self.pos,
direction.right())
self.on_line_change()
@staticmethod
def move_by_word(line, position, direction):
"""
Returns a new position by moving word-wise in the line
>>> from ranger import PY3
>>> if PY3:
... line = "\\u30AA\\u30CF\\u30E8\\u30A6 world, this is dog"
... else:
... # Didn't get the unicode test to work on python2, even though
... # it works fine in ranger, even with unicode input...
... line = "ohai world, this is dog"
>>> Console.move_by_word(line, 0, -1)
0
>>> Console.move_by_word(line, 0, 1)
5
>>> Console.move_by_word(line, 2, -1)
0
>>> Console.move_by_word(line, 2, 1)
5
>>> Console.move_by_word(line, 15, -2)
5
>>> Console.move_by_word(line, 15, 2)
21
>>> Console.move_by_word(line, 24, -1)
21
>>> Console.move_by_word(line, 24, 1)
24
"""
word_beginnings = []
seen_whitespace = True
current_word = None
cursor_inside_word = False
# Scan the line for word boundaries and determine position of cursor
for i, char in enumerate(line):
if i == position:
current_word = len(word_beginnings)
if not seen_whitespace:
cursor_inside_word = True
if char == " ":
seen_whitespace = True
elif seen_whitespace:
seen_whitespace = False
word_beginnings.append(i)
word_beginnings.append(len(line))
# Handle corner cases:
if current_word is None:
current_word = len(word_beginnings)
if direction > 0 and cursor_inside_word:
current_word -= 1
if direction < 0 and position == len(line):
current_word -= 1
new_word = current_word + direction
new_word = max(0, min(len(word_beginnings) - 1, new_word))
return word_beginnings[new_word]
def delete_rest(self, direction):
self.tab_deque = None
if direction > 0:
self.copy = self.line[self.pos:]
self.line = self.line[:self.pos]
else:
self.copy = self.line[:self.pos]
self.line = self.line[self.pos:]
self.pos = 0
self.on_line_change()
def paste(self):
if self.pos == len(self.line):
self.line += self.copy
else:
self.line = self.line[:self.pos] + self.copy + self.line[self.pos:]
self.pos += len(self.copy)
self.on_line_change()
def delete_word(self, backward=True):
if self.line:
self.tab_deque = None
if backward:
right_part = self.line[self.pos:]
i = self.pos - 2
while i >= 0 and re.match(r'[\w\d]', self.line[i], re.UNICODE): # pylint: disable=no-member
i -= 1
self.copy = self.line[i + 1:self.pos]
self.line = self.line[:i + 1] + right_part
self.pos = i + 1
else:
left_part = self.line[:self.pos]
i = self.pos + 1
while i < len(self.line) and re.match(r'[\w\d]', self.line[i],
re.UNICODE): # pylint: disable=no-member
i += 1
self.copy = self.line[self.pos:i]
if i >= len(self.line):
self.line = left_part
self.pos = len(self.line)
else:
self.line = left_part + self.line[i:]
self.pos = len(left_part)
self.on_line_change()
def delete(self, mod):
self.tab_deque = None
if mod == -1 and self.pos == 0:
if not self.line:
self.close(trigger_cancel_function=False)
return
# Delete utf-char-wise
if PY3:
left_part = self.line[:self.pos + mod]
self.pos = len(left_part)
self.line = left_part + self.line[self.pos + 1:]
else:
uchar = list(self.line.decode('utf-8', 'ignore'))
upos = len(self.line[:self.pos].decode('utf-8', 'ignore')) + mod
left_part = ''.join(uchar[:upos]).encode('utf-8', 'ignore')
self.pos = len(left_part)
self.line = left_part + ''.join(uchar[upos + 1:]).encode(
'utf-8', 'ignore')
self.on_line_change()
def transpose_subr(self, line, x, y):
# Transpose substrings x & y of line
# x & y are tuples of length two containing positions of endpoints
if not 0 <= x[0] < x[1] <= y[0] < y[1] <= len(line):
self.fm.notify("Tried to transpose invalid regions.", bad=True)
return line
line_begin = line[:x[0]]
word_x = line[x[0]:x[1]]
line_middle = line[x[1]:y[0]]
word_y = line[y[0]:y[1]]
line_end = line[y[1]:]
line = line_begin + word_y + line_middle + word_x + line_end
return line
def transpose_chars(self):
if self.pos == 0:
return
elif self.pos == len(self.line):
x = max(0, self.pos - 2), max(0, self.pos - 1)
y = max(0, self.pos - 1), self.pos
else:
x = max(0, self.pos - 1), self.pos
y = self.pos, min(len(self.line), self.pos + 1)
self.line = self.transpose_subr(self.line, x, y)
self.pos = y[1]
self.on_line_change()
def transpose_words(self):
# Interchange adjacent words at the console with Alt-t
# like in Emacs and many terminal emulators
if self.line:
# If before the first word, interchange next two words
if not re.search(r'[\w\d]', self.line[:self.pos], re.UNICODE):
self.pos = self.move_by_word(self.line, self.pos, 1)
# If in/after last word, interchange last two words
if (re.match(r'[\w\d]*\s*$', self.line[self.pos:], re.UNICODE)
and (re.match(r'[\w\d]', self.line[self.pos - 1],
re.UNICODE) if self.pos - 1 >= 0 else True)):
self.pos = self.move_by_word(self.line, self.pos, -1)
# Util function to increment position until out of word/whitespace
def _traverse(line, pos, regex):
while pos < len(line) and re.match(regex, line[pos],
re.UNICODE):
pos += 1
return pos
# Calculate endpoints of target words and pass them to
# 'self.transpose_subr'
x_begin = self.move_by_word(self.line, self.pos, -1)
x_end = _traverse(self.line, x_begin, r'[\w\d]')
x = x_begin, x_end
y_begin = self.pos
# If in middle of word, move to end
if re.match(r'[\w\d]', self.line[self.pos - 1], re.UNICODE):
y_begin = _traverse(self.line, y_begin, r'[\w\d]')
# Traverse whitespace to beginning of next word
y_begin = _traverse(self.line, y_begin, r'\s')
y_end = _traverse(self.line, y_begin, r'[\w\d]')
y = y_begin, y_end
self.line = self.transpose_subr(self.line, x, y)
self.pos = y[1]
self.on_line_change()
def execute(self, cmd=None):
if self.question_queue and cmd is None:
question = self.question_queue[0]
answers = question[2]
if len(answers) >= 1:
self._answer_question(answers[0])
else:
self.question_queue.pop(0)
return
self.allow_close = True
if cmd:
cmd.execute()
else:
self.fm.execute_console(self.line)
if self.allow_close:
self._close_command_prompt(trigger_cancel_function=False)
def _get_cmd(self, quiet=False):
try:
command_class = self.get_cmd_class()
except IndexError:
return None
except KeyError:
if not quiet:
self.fm.notify("Command not found: `%s'" %
self.line.split()[0],
bad=True)
return None
return command_class(self.line)
def get_cmd_class(self):
return self.fm.commands.get_command(self.line.split()[0], abbrev=True)
def _get_tab(self, tabnum):
if ' ' in self.line:
cmd = self._get_cmd()
if cmd:
return cmd.tab(tabnum)
return None
return self.fm.commands.command_generator(self.line)
def tab(self, tabnum=1):
if self.tab_deque is None:
tab_result = self._get_tab(tabnum)
if tab_result is None:
pass
elif isinstance(tab_result, str):
self.line = tab_result
self.pos = len(tab_result)
self.on_line_change()
elif hasattr(tab_result, '__iter__'):
self.tab_deque = deque(tab_result)
self.tab_deque.appendleft(self.line)
if self.tab_deque is not None:
self.tab_deque.rotate(-tabnum)
self.line = self.tab_deque[0]
self.pos = len(self.line)
self.on_line_change()
def on_line_change(self):
self.history_search_pattern = self.line
try:
cls = self.get_cmd_class()
except (KeyError, ValueError, IndexError):
pass
else:
cmd = cls(self.line)
if cmd and cmd.quick():
cmd.quickly_executed = True
self.execute(cmd)
def ask(self, text, callback, choices=None):
"""Open a question prompt with predefined choices
The "text" is displayed as the question text and should include a list
of possible keys that the user can type. The "callback" is a function
that is called when the question is answered. It only gets the answer
as an argument. "choices" is a tuple of one-letter strings that can be
typed in by the user. Every other input gets ignored, except <Enter>
and <ESC>.
The first choice is used when the user presses <Enter>, the second
choice is used when the user presses <ESC>.
"""
self.question_queue.append(
(text, callback, choices if choices is not None else ['y', 'n']))