Use null check convention in server_events.c - profani-tty - Profanity fork with TTY improvements

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author	James Booth <boothj5@gmail.com>	2015-05-04 22:51:15 +0100
committer	James Booth <boothj5@gmail.com>	2015-05-04 22:51:15 +0100
commit	4dc90334728b61f02ac3ee3508a663ae227b9fab (patch)
tree	2e3c991c515d4430f37e305bf7838a38c4fd2636 /src/chat_session.c
parent	4ba33005d0e5333ff15d9af40663741f6884c649 (diff)
download	profani-tty-4dc90334728b61f02ac3ee3508a663ae227b9fab.tar.gz

Use null check convention in server_events.c

Diffstat (limited to 'src/chat_session.c')

0 files changed, 0 insertions, 0 deletions

# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com> # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import curses import os import pwd import socket from os.path import abspath, normpath, join, expanduser, isdir from ranger.fsobject.directory import Directory, NoDirectoryGiven from ranger.container import KeyBuffer, History from ranger.ext.signal_dispatcher import SignalDispatcher from ranger.shared import SettingsAware 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 keybuffer = None def __init__(self, path): SignalDispatcher.__init__(self) self.path = abspath(expanduser(path)) self._cf = None self.pathway = () self.directories = {} self.keybuffer = KeyBuffer() self.copy = set() self.history = History(self.settings.max_history_size) try: self.username = pwd.getpwuid(os.geteuid()).pw_name except: self.username = 'uid:' + str(os.geteuid()) self.hostname = socket.gethostname() self.home_path = os.path.expanduser('~') from ranger.shared import EnvironmentAware EnvironmentAware.env = self 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.append(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): """Delete unused directory objects""" for key in tuple(self.directories): value = self.directories[key] if value.is_older_than(age): # and not value in self.pathway: del self.directories[key] if value.is_directory: value.files = None 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): from os import statvfs stat = 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() 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 try: new_cwd = self.get_directory(path) except NoDirectoryGiven: return False 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


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