Ejemplo n.º 1
0
    def __init__(self):
        super().__init__()

        self._process_flags()

        self.column_width = config().column_width()
        self.todofile = TodoFile.TodoFile(config().todotxt())
        self.todolist = TodoList.TodoList(self.todofile.read())

        self.marked_todos = []

        self.columns = urwid.Columns([], dividechars=0,
            min_width=config().column_width())
        self.commandline = CommandLineWidget('topydo> ')
        self.keystate_widget = KeystateWidget()
        self.status_line = urwid.Columns([
            ('weight', 1, urwid.Filler(self.commandline)),
        ])

        self.keymap = config().column_keymap()
        self._alarm = None

        self._last_cmd = None

        # console widget
        self.console = ConsoleWidget()
        get_terminal_size(self._console_width)

        urwid.connect_signal(self.commandline, 'blur', self._blur_commandline)
        urwid.connect_signal(self.commandline, 'execute_command',
                             self._execute_handler)

        def hide_console(p_focus_commandline=False):
            self._console_visible = False
            if p_focus_commandline:
                self._focus_commandline()
        urwid.connect_signal(self.console, 'close', hide_console)

        # view widget
        self.viewwidget = ViewWidget(self.todolist)

        urwid.connect_signal(self.viewwidget, 'save',
                             lambda: self._update_view(self.viewwidget.data))

        def hide_viewwidget():
            self._viewwidget_visible = False
            self._blur_commandline()

        urwid.connect_signal(self.viewwidget, 'close', hide_viewwidget)

        self.mainwindow = MainPile([
            ('weight', 1, self.columns),
            (1, self.status_line),
        ])

        urwid.connect_signal(self.mainwindow, 'blur_console', hide_console)

        # the columns should have keyboard focus
        self._blur_commandline()

        self._screen = urwid.raw_display.Screen()

        if config().colors():
            self._screen.register_palette(self._create_color_palette())
        else:
            self._screen.register_palette(self._create_mono_palette())

        self._screen.set_terminal_properties(256)

        self.mainloop = urwid.MainLoop(
            self.mainwindow,
            screen=self._screen,
            unhandled_input=self._handle_input,
            pop_ups=True
        )

        self.column_mode = _APPEND_COLUMN
        self._set_alarm_for_next_midnight_update()
Ejemplo n.º 2
0
class UIApplication(CLIApplicationBase):
    def __init__(self):
        super().__init__()

        self._process_flags()

        self.column_width = config().column_width()
        self.todofile = TodoFile.TodoFile(config().todotxt())
        self.todolist = TodoList.TodoList(self.todofile.read())

        self.marked_todos = []

        self.columns = urwid.Columns([], dividechars=0,
            min_width=config().column_width())
        self.commandline = CommandLineWidget('topydo> ')
        self.keystate_widget = KeystateWidget()
        self.status_line = urwid.Columns([
            ('weight', 1, urwid.Filler(self.commandline)),
        ])

        self.keymap = config().column_keymap()
        self._alarm = None

        self._last_cmd = None

        # console widget
        self.console = ConsoleWidget()
        get_terminal_size(self._console_width)

        urwid.connect_signal(self.commandline, 'blur', self._blur_commandline)
        urwid.connect_signal(self.commandline, 'execute_command',
                             self._execute_handler)

        def hide_console(p_focus_commandline=False):
            self._console_visible = False
            if p_focus_commandline:
                self._focus_commandline()
        urwid.connect_signal(self.console, 'close', hide_console)

        # view widget
        self.viewwidget = ViewWidget(self.todolist)

        urwid.connect_signal(self.viewwidget, 'save',
                             lambda: self._update_view(self.viewwidget.data))

        def hide_viewwidget():
            self._viewwidget_visible = False
            self._blur_commandline()

        urwid.connect_signal(self.viewwidget, 'close', hide_viewwidget)

        self.mainwindow = MainPile([
            ('weight', 1, self.columns),
            (1, self.status_line),
        ])

        urwid.connect_signal(self.mainwindow, 'blur_console', hide_console)

        # the columns should have keyboard focus
        self._blur_commandline()

        self._screen = urwid.raw_display.Screen()

        if config().colors():
            self._screen.register_palette(self._create_color_palette())
        else:
            self._screen.register_palette(self._create_mono_palette())

        self._screen.set_terminal_properties(256)

        self.mainloop = urwid.MainLoop(
            self.mainwindow,
            screen=self._screen,
            unhandled_input=self._handle_input,
            pop_ups=True
        )

        self.column_mode = _APPEND_COLUMN
        self._set_alarm_for_next_midnight_update()

    def _create_color_palette(self):
        project_color = to_urwid_color(config().project_color())
        context_color = to_urwid_color(config().context_color())
        metadata_color = to_urwid_color(config().metadata_color())
        link_color = to_urwid_color(config().link_color())

        palette = [
            (PaletteItem.PROJECT, '', '', '', project_color, ''),
            (PaletteItem.PROJECT_FOCUS, '', 'light gray', '', project_color, None),
            (PaletteItem.CONTEXT, '', '', '', context_color, ''),
            (PaletteItem.CONTEXT_FOCUS, '', 'light gray', '', context_color, None),
            (PaletteItem.METADATA, '', '', '', metadata_color, ''),
            (PaletteItem.METADATA_FOCUS, '', 'light gray', '', metadata_color, None),
            (PaletteItem.LINK, '', '', '', link_color, ''),
            (PaletteItem.LINK_FOCUS, '', 'light gray', '', link_color, None),
            (PaletteItem.DEFAULT_FOCUS, 'black', 'light gray'),
            (PaletteItem.MARKED, '', 'light blue'),
        ]

        for C in ascii_uppercase:
            pri_color_cfg = config().priority_color(C)

            pri_color = to_urwid_color(pri_color_cfg)
            pri_color_focus = pri_color if not pri_color_cfg.is_neutral() else 'black'

            palette.append((
                'pri_' + C, '', '', '', pri_color, ''
            ))
            palette.append((
                'pri_' + C + '_focus', '', 'light gray', '', pri_color_focus, None
            ))

        return palette

    def _create_mono_palette(self):
        palette = [
            (PaletteItem.DEFAULT_FOCUS, 'black', 'light gray'),
            (PaletteItem.PROJECT_FOCUS, PaletteItem.DEFAULT_FOCUS),
            (PaletteItem.CONTEXT_FOCUS, PaletteItem.DEFAULT_FOCUS),
            (PaletteItem.METADATA_FOCUS, PaletteItem.DEFAULT_FOCUS),
            (PaletteItem.LINK_FOCUS, PaletteItem.DEFAULT_FOCUS),
            (PaletteItem.MARKED, 'default,underline,bold', 'default'),
        ]

        for C in ascii_uppercase:
            palette.append(
                ('pri_' + C + '_focus', PaletteItem.DEFAULT_FOCUS)
            )

        return palette

    def _set_alarm_for_next_midnight_update(self):
        def callback(p_loop, p_data):
            TodoWidget.wipe_cache()
            self._update_all_columns()
            self._set_alarm_for_next_midnight_update()

        tomorrow = datetime.datetime.now() + datetime.timedelta(days=1)
        # turn it into midnight
        tomorrow = tomorrow.replace(hour=0, minute=0, second=0, microsecond=0)

        self.mainloop.set_alarm_at(time.mktime(tomorrow.timetuple()), callback)

    def _output(self, p_text):
        self._print_to_console(p_text)

    def _execute_handler(self, p_command, p_todo_id=None, p_output=None):
        """
        Executes a command, given as a string.
        """
        p_output = p_output or self._output

        self._last_cmd = (p_command, p_output == self._output)

        if '{}' in p_command:
            if self._has_marked_todos():
                p_todo_id = ' '.join(self.marked_todos)
            p_command = p_command.format(p_todo_id)

        try:
            p_command = shlex.split(p_command)
        except ValueError as verr:
            self._print_to_console('Error: ' + str(verr))
            return

        try:
            (subcommand, args) = get_subcommand(p_command)
        except ConfigError as cerr:
            self._print_to_console(
                'Error: {}. Check your aliases configuration.'.format(cerr))
            return

        self._backup(subcommand, args)

        try:
            command = subcommand(
                args,
                self.todolist,
                p_output,
                self._output,
                self._input,
            )

            if command.execute() != False:
                self._post_execute()

        except TypeError:
            # TODO: show error message
            pass

    def _update_all_columns(self):
        for column, _ in self.columns.contents:
            column.update()
            column.keystate = None

    def _post_execute(self):
        # store dirty flag because base _post_execute will reset it after flush
        dirty = self.todolist.dirty
        super()._post_execute()

        if dirty or self.marked_todos:
            self._reset_state()

    def _repeat_last_cmd(self, p_todo_id=None):
        try:
            cmd, verbosity = self._last_cmd
        except TypeError:
            return

        self._execute_handler(cmd, p_todo_id,
                              self._output if verbosity else lambda _: None)

    def _reset_state(self):
        for widget in TodoWidget.cache.values():
            widget.unmark()
        self.marked_todos = []
        self._update_all_columns()

    def _blur_commandline(self):
        self.mainwindow.focus_item = 0

    def _focus_commandline(self):
        self.mainwindow.focus_item = 1

    def _focus_first_column(self):
        self.columns.focus_position = 0

    def _focus_last_column(self):
        end_pos = len(self.columns.contents) - 1
        self.columns.focus_position = end_pos

    def _focus_next_column(self):
        size = len(self.columns.contents)
        if self.columns.focus_position < size -1:
            self.columns.focus_position += 1

    def _focus_previous_column(self):
        if self.columns.focus_position > 0:
            self.columns.focus_position -= 1

    def _append_column(self):
        self.viewwidget.reset()
        self.column_mode = _APPEND_COLUMN
        self._viewwidget_visible = True

    def _insert_column(self):
        self.viewwidget.reset()
        self.column_mode = _INSERT_COLUMN
        self._viewwidget_visible = True

    def _edit_column(self):
        self.viewwidget.data = self.columns.focus.view.data
        self.column_mode = _EDIT_COLUMN
        self._viewwidget_visible = True

    def _delete_column(self):
        try:
            focus = self.columns.focus_position
            del self.columns.contents[focus]

            if self.columns.contents:
                self.columns.focus_position = focus
            else:
                self._focus_commandline()
        except IndexError:
            # no columns
            pass

    def _copy_column(self):
        self.viewwidget.data = self.columns.focus.view.data
        self.column_mode = _COPY_COLUMN
        self._viewwidget_visible = True

    def _column_action_handler(self, p_action):
        dispatch = {
            'first_column': self._focus_first_column,
            'last_column': self._focus_last_column,
            'prev_column': self._focus_previous_column,
            'next_column': self._focus_next_column,
            'append_column': self._append_column,
            'insert_column': self._insert_column,
            'edit_column': self._edit_column,
            'delete_column': self._delete_column,
            'copy_column': self._copy_column,
            'swap_left': self._swap_column_left,
            'swap_right': self._swap_column_right,
            'reset': self._reset_state,
        }
        dispatch[p_action]()

    def _handle_input(self, p_input):
        dispatch = {
            ':': self._focus_commandline,
        }

        try:
            dispatch[p_input]()
        except KeyError:
            # the key is unknown, ignore
            pass

    def _viewdata_to_view(self, p_data):
        """
        Converts a dictionary describing a view to an actual UIView instance.
        """
        sorter = Sorter(p_data['sortexpr'])
        filters = []

        if not p_data['show_all']:
            filters.append(DependencyFilter(self.todolist))
            filters.append(RelevanceFilter())

        filters += get_filter_list(p_data['filterexpr'].split())

        return UIView(sorter, filters, self.todolist, p_data)

    def _update_view(self, p_data):
        """ Creates a view from the data entered in the view widget. """
        view = self._viewdata_to_view(p_data)

        if self.column_mode == _APPEND_COLUMN or self.column_mode == _COPY_COLUMN:
            self._add_column(view)
        elif self.column_mode == _INSERT_COLUMN:
            self._add_column(view, self.columns.focus_position)
        elif self.column_mode == _EDIT_COLUMN:
            current_column = self.columns.focus

            current_column.title = p_data['title']
            current_column.view = view

        self._viewwidget_visible = False
        self._blur_commandline()

    def _add_column(self, p_view, p_pos=None):
        """
        Given an UIView, adds a new column widget with the todos in that view.

        When no position is given, it is added to the end, otherwise inserted
        before that position.
        """
        def execute_silent(p_cmd, p_todo_id=None):
            self._execute_handler(p_cmd, p_todo_id, lambda _: None)

        todolist = TodoListWidget(p_view, p_view.data['title'], self.keymap)
        urwid.connect_signal(todolist, 'execute_command_silent',
                             execute_silent)
        urwid.connect_signal(todolist, 'execute_command', self._execute_handler)
        urwid.connect_signal(todolist, 'repeat_cmd', self._repeat_last_cmd)
        urwid.connect_signal(todolist, 'refresh', self.mainloop.screen.clear)
        urwid.connect_signal(todolist, 'add_pending_action', self._set_alarm)
        urwid.connect_signal(todolist, 'remove_pending_action', self._remove_alarm)
        urwid.connect_signal(todolist, 'column_action', self._column_action_handler)
        urwid.connect_signal(todolist, 'show_keystate', self._print_keystate)
        urwid.connect_signal(todolist, 'toggle_mark',
                             self._process_mark_toggle)

        options = self.columns.options(
            width_type='given',
            width_amount=config().column_width(),
            box_widget=True
        )

        item = (todolist, options)

        if p_pos == None:
            p_pos = len(self.columns.contents)

        self.columns.contents.insert(p_pos, item)

        self.columns.focus_position = p_pos
        self._blur_commandline()

    def _print_keystate(self, p_keystate):
        self.keystate_widget.set_text(p_keystate)
        self._keystate_visible = len(p_keystate) > 0

    def _set_alarm(self, p_callback):
        """ Sets alarm to execute p_action specified in 0.5 sec. """
        self._alarm = self.mainloop.set_alarm_in(0.5, p_callback)

    def _remove_alarm(self):
        """ Removes pending action alarm stored in _alarm attribute. """
        self.mainloop.remove_alarm(self._alarm)
        self._alarm = None

    def _swap_column_left(self):
        pos = self.columns.focus_position
        if pos > 0:
            _columns = self.columns.contents
            _columns[pos], _columns[pos - 1] = _columns[pos - 1], _columns[pos]
            self.columns.focus_position -= 1

    def _swap_column_right(self):
        pos = self.columns.focus_position
        _columns = self.columns.contents
        if pos < len(_columns) - 1:
            _columns[pos], _columns[pos + 1] = _columns[pos + 1], _columns[pos]
            self.columns.focus_position += 1

    @property
    def _console_visible(self):
        contents = self.mainwindow.contents
        return len(contents) == 3 and isinstance(contents[2][0], ConsoleWidget)

    @_console_visible.setter
    def _console_visible(self, p_enabled):
        contents = self.mainwindow.contents

        if p_enabled == True and len(contents) == 2:
            contents.append((self.console, ('pack', None)))
            self.mainwindow.focus_position = 2
        elif p_enabled == False and self._console_visible:
            self.console.clear()
            del contents[2]
            self.mainwindow.focus_position = 0

    @property
    def _keystate_visible(self):
        contents = self.status_line.contents
        return len(contents) == 2 and isinstance(contents[1][0].original_widget,
                                                 KeystateWidget)

    @_keystate_visible.setter
    def _keystate_visible(self, p_enabled):
        contents = self.status_line.contents

        if p_enabled and len(contents) == 1:
            contents.append((urwid.Filler(self.keystate_widget),
                             ('weight', 1, True)))
        elif not p_enabled and self._keystate_visible:
            del contents[1]

    @property
    def _viewwidget_visible(self):
        contents = self.mainwindow.contents
        return len(contents) == 3 and isinstance(contents[2][0], ViewWidget)

    @_viewwidget_visible.setter
    def _viewwidget_visible(self, p_enabled):
        contents = self.mainwindow.contents

        if p_enabled == True and len(contents) == 2:
            contents.append((self.viewwidget, ('pack', None)))
            self.mainwindow.focus_position = 2
        elif p_enabled == False and self._viewwidget_visible:
            del contents[2]

    def _print_to_console(self, p_text):
        self._console_visible = True
        self.console.print_text(p_text)

    def _input(self, p_question):
        self._print_to_console(p_question)

        # don't wait for the event loop to enter idle, there is a command
        # waiting for input right now, so already go ahead and draw the
        # question on screen.
        self.mainloop.draw_screen()

        user_input = self.mainloop.screen.get_input()
        self._console_visible = False

        return user_input[0]

    def _console_width(self):
        terminal_size = namedtuple('Terminal_Size', 'columns lines')
        width = self.console.console_width() - 2
        sz = terminal_size(width, 1)

        return sz

    def _has_marked_todos(self):
        return len(self.marked_todos) > 0

    def _process_mark_toggle(self, p_todo_id):
        """
        Adds p_todo_id to marked_todos attribute and returns True if p_todo_id
        is not already present. Removes p_todo_id from marked_todos and returns
        False otherwise.
        """
        if p_todo_id not in self.marked_todos:
            self.marked_todos.append(p_todo_id)
            return True
        else:
            self.marked_todos.remove(p_todo_id)
            return False

    def run(self):
        layout = columns()
        if len(layout) > 0:
            for column in layout:
                self._add_column(self._viewdata_to_view(column))
        else:
            dummy = {
                "title": "All tasks",
                "sortexpr": "desc:prio",
                "filterexpr": "",
                "show_all": True,
            }
            self._add_column(self._viewdata_to_view(dummy))

        # make sure that the first column is focused on startup
        self.columns.focus_position = 0

        self.mainloop.run()
Ejemplo n.º 3
0
    def __init__(self):
        super().__init__()

        args = self._process_flags()

        try:
            opts, args = getopt.getopt(args[1:], 'l:')
        except getopt.GetoptError as e:
            error(str(e))
            sys.exit(1)

        self.alt_layout_path = None

        for opt, value in opts:
            if opt == "-l":
                self.alt_layout_path = value

        def callback():
            self.todolist.erase()
            self.todolist.add_list(self.todofile.read())
            self._update_all_columns()
            self._redraw()

        self.column_width = config().column_width()
        self.todofile = TodoFileWatched(config().todotxt(), callback)
        self.todolist = TodoList.TodoList(self.todofile.read())

        self.marked_todos = set()

        self.columns = urwid.Columns([],
                                     dividechars=0,
                                     min_width=config().column_width())
        self.columns.contents.set_focus_changed_callback(self._move_highlight)
        completer = ColumnCompleter(self.todolist)
        self.commandline = CommandLineWidget(completer, 'topydo> ')
        self.keystate_widget = KeystateWidget()
        self.status_line = urwid.Columns([
            ('weight', 1, urwid.Filler(self.commandline)),
        ])
        self.cli_wrapper = CliWrapper([(1, self.status_line)])

        self.keymap = config().column_keymap()
        self._alarm = None

        self._last_cmd = None

        # console widget
        self.console = ConsoleWidget()
        get_terminal_size(self._console_width)

        urwid.connect_signal(self.commandline, 'blur', self._blur_commandline)
        urwid.connect_signal(self.commandline, 'execute_command',
                             self._execute_handler)
        urwid.connect_signal(self.commandline, 'show_completions',
                             self._show_completion_box)
        urwid.connect_signal(self.commandline, 'hide_completions',
                             self._hide_completion_box)

        def hide_console(p_focus_commandline=False):
            if p_focus_commandline:
                self._focus_commandline()
            else:
                self._console_visible = False

        urwid.connect_signal(self.console, 'close', hide_console)

        # view widget
        self.viewwidget = ViewWidget(self.todolist)

        urwid.connect_signal(self.viewwidget, 'save',
                             lambda: self._update_view(self.viewwidget.data))

        def hide_viewwidget():
            # prevent the view widget to be hidden when the last column was
            # deleted
            if self.columns.contents:
                self._viewwidget_visible = False
                self._blur_commandline()

        urwid.connect_signal(self.viewwidget, 'close', hide_viewwidget)

        self.mainwindow = MainPile([
            ('weight', 1, self.columns),
            ('pack', self.cli_wrapper),
        ])

        urwid.connect_signal(self.mainwindow, 'blur_console', hide_console)

        # the columns should have keyboard focus
        self._blur_commandline()

        self._screen = urwid.raw_display.Screen()

        def create_color_palette():
            project_color = to_urwid_color(config().project_color())
            context_color = to_urwid_color(config().context_color())
            metadata_color = to_urwid_color(config().metadata_color())
            link_color = to_urwid_color(config().link_color())
            focus_background_color = to_urwid_color(
                config().focus_background_color())
            marked_background_color = to_urwid_color(
                config().marked_background_color())

            palette = [
                (PaletteItem.PROJECT, '', '', '', project_color, ''),
                (PaletteItem.PROJECT_FOCUS, '', 'light gray', '',
                 project_color, focus_background_color),
                (PaletteItem.CONTEXT, '', '', '', context_color, ''),
                (PaletteItem.CONTEXT_FOCUS, '', 'light gray', '',
                 context_color, focus_background_color),
                (PaletteItem.METADATA, '', '', '', metadata_color, ''),
                (PaletteItem.METADATA_FOCUS, '', 'light gray', '',
                 metadata_color, focus_background_color),
                (PaletteItem.LINK, '', '', '', link_color, ''),
                (PaletteItem.LINK_FOCUS, '', 'light gray', '', link_color,
                 focus_background_color),
                (PaletteItem.DEFAULT_FOCUS, '', 'light gray', '', '',
                 focus_background_color),
                (PaletteItem.MARKED, '', 'light blue', '', '',
                 marked_background_color),
            ]

            for C in ascii_uppercase:
                pri_color_cfg = config().priority_color(C)

                pri_color = to_urwid_color(pri_color_cfg)
                pri_color_focus = pri_color if not pri_color_cfg.is_neutral(
                ) else 'black'

                palette.append(('pri_' + C, '', '', '', pri_color, ''))
                palette.append(('pri_' + C + '_focus', '', 'light gray', '',
                                pri_color_focus, focus_background_color))

            return palette

        def create_mono_palette():
            palette = [
                (PaletteItem.DEFAULT_FOCUS, 'black', 'light gray'),
                (PaletteItem.PROJECT_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.CONTEXT_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.METADATA_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.LINK_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.MARKED, 'default,underline,bold', 'default'),
            ]

            for C in ascii_uppercase:
                palette.append(
                    ('pri_' + C + '_focus', PaletteItem.DEFAULT_FOCUS))

            return palette

        if config().colors():
            self._screen.register_palette(create_color_palette())
        else:
            self._screen.register_palette(create_mono_palette())

        self._screen.set_terminal_properties(256)

        self.mainloop = urwid.MainLoop(self.mainwindow,
                                       screen=self._screen,
                                       unhandled_input=self._handle_input,
                                       pop_ups=True)

        self.column_mode = _APPEND_COLUMN
        self._set_alarm_for_next_midnight_update()
Ejemplo n.º 4
0
class UIApplication(CLIApplicationBase):
    def __init__(self):
        super().__init__()

        args = self._process_flags()

        try:
            opts, args = getopt.getopt(args[1:], 'l:')
        except getopt.GetoptError as e:
            error(str(e))
            sys.exit(1)

        self.alt_layout_path = None

        for opt, value in opts:
            if opt == "-l":
                self.alt_layout_path = value

        def callback():
            self.todolist.erase()
            self.todolist.add_list(self.todofile.read())
            self._update_all_columns()
            self._redraw()

        self.column_width = config().column_width()
        self.todofile = TodoFileWatched(config().todotxt(), callback)
        self.todolist = TodoList.TodoList(self.todofile.read())

        self.marked_todos = set()

        self.columns = urwid.Columns([],
                                     dividechars=0,
                                     min_width=config().column_width())
        self.columns.contents.set_focus_changed_callback(self._move_highlight)
        completer = ColumnCompleter(self.todolist)
        self.commandline = CommandLineWidget(completer, 'topydo> ')
        self.keystate_widget = KeystateWidget()
        self.status_line = urwid.Columns([
            ('weight', 1, urwid.Filler(self.commandline)),
        ])
        self.cli_wrapper = CliWrapper([(1, self.status_line)])

        self.keymap = config().column_keymap()
        self._alarm = None

        self._last_cmd = None

        # console widget
        self.console = ConsoleWidget()
        get_terminal_size(self._console_width)

        urwid.connect_signal(self.commandline, 'blur', self._blur_commandline)
        urwid.connect_signal(self.commandline, 'execute_command',
                             self._execute_handler)
        urwid.connect_signal(self.commandline, 'show_completions',
                             self._show_completion_box)
        urwid.connect_signal(self.commandline, 'hide_completions',
                             self._hide_completion_box)

        def hide_console(p_focus_commandline=False):
            if p_focus_commandline:
                self._focus_commandline()
            else:
                self._console_visible = False

        urwid.connect_signal(self.console, 'close', hide_console)

        # view widget
        self.viewwidget = ViewWidget(self.todolist)

        urwid.connect_signal(self.viewwidget, 'save',
                             lambda: self._update_view(self.viewwidget.data))

        def hide_viewwidget():
            # prevent the view widget to be hidden when the last column was
            # deleted
            if self.columns.contents:
                self._viewwidget_visible = False
                self._blur_commandline()

        urwid.connect_signal(self.viewwidget, 'close', hide_viewwidget)

        self.mainwindow = MainPile([
            ('weight', 1, self.columns),
            ('pack', self.cli_wrapper),
        ])

        urwid.connect_signal(self.mainwindow, 'blur_console', hide_console)

        # the columns should have keyboard focus
        self._blur_commandline()

        self._screen = urwid.raw_display.Screen()

        def create_color_palette():
            project_color = to_urwid_color(config().project_color())
            context_color = to_urwid_color(config().context_color())
            metadata_color = to_urwid_color(config().metadata_color())
            link_color = to_urwid_color(config().link_color())
            focus_background_color = to_urwid_color(
                config().focus_background_color())
            marked_background_color = to_urwid_color(
                config().marked_background_color())

            palette = [
                (PaletteItem.PROJECT, '', '', '', project_color, ''),
                (PaletteItem.PROJECT_FOCUS, '', 'light gray', '',
                 project_color, focus_background_color),
                (PaletteItem.CONTEXT, '', '', '', context_color, ''),
                (PaletteItem.CONTEXT_FOCUS, '', 'light gray', '',
                 context_color, focus_background_color),
                (PaletteItem.METADATA, '', '', '', metadata_color, ''),
                (PaletteItem.METADATA_FOCUS, '', 'light gray', '',
                 metadata_color, focus_background_color),
                (PaletteItem.LINK, '', '', '', link_color, ''),
                (PaletteItem.LINK_FOCUS, '', 'light gray', '', link_color,
                 focus_background_color),
                (PaletteItem.DEFAULT_FOCUS, '', 'light gray', '', '',
                 focus_background_color),
                (PaletteItem.MARKED, '', 'light blue', '', '',
                 marked_background_color),
            ]

            for C in ascii_uppercase:
                pri_color_cfg = config().priority_color(C)

                pri_color = to_urwid_color(pri_color_cfg)
                pri_color_focus = pri_color if not pri_color_cfg.is_neutral(
                ) else 'black'

                palette.append(('pri_' + C, '', '', '', pri_color, ''))
                palette.append(('pri_' + C + '_focus', '', 'light gray', '',
                                pri_color_focus, focus_background_color))

            return palette

        def create_mono_palette():
            palette = [
                (PaletteItem.DEFAULT_FOCUS, 'black', 'light gray'),
                (PaletteItem.PROJECT_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.CONTEXT_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.METADATA_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.LINK_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.MARKED, 'default,underline,bold', 'default'),
            ]

            for C in ascii_uppercase:
                palette.append(
                    ('pri_' + C + '_focus', PaletteItem.DEFAULT_FOCUS))

            return palette

        if config().colors():
            self._screen.register_palette(create_color_palette())
        else:
            self._screen.register_palette(create_mono_palette())

        self._screen.set_terminal_properties(256)

        self.mainloop = urwid.MainLoop(self.mainwindow,
                                       screen=self._screen,
                                       unhandled_input=self._handle_input,
                                       pop_ups=True)

        self.column_mode = _APPEND_COLUMN
        self._set_alarm_for_next_midnight_update()

    def _move_highlight(self, p_new_focus):
        """
        Removes highlight from currently focused column and applies it on
        column with index equal to p_new_focus.
        """
        self.columns.focus.highlight(False)
        self.columns.contents[p_new_focus][0].highlight(True)
        self.columns._invalidate()

    def _set_alarm_for_next_midnight_update(self):
        def callback(p_loop, p_data):
            TodoWidget.wipe_cache()
            self._update_all_columns()
            self._set_alarm_for_next_midnight_update()

        tomorrow = datetime.datetime.now() + datetime.timedelta(days=1)
        # turn it into midnight
        tomorrow = tomorrow.replace(hour=0, minute=0, second=0, microsecond=0)

        self.mainloop.set_alarm_at(time.mktime(tomorrow.timetuple()), callback)

    def _output(self, p_text):
        self._print_to_console(p_text)

    def _check_id_validity(self, p_ids):
        """
        Checks if there are any invalid todo IDs in p_ids list.

        Returns proper error message if any ID is invalid and None otherwise.
        """
        errors = []
        valid_ids = self.todolist.ids()

        if len(p_ids) == 0:
            errors.append('No todo item was selected')
        else:
            errors = [
                "Invalid todo ID: {}".format(todo_id)
                for todo_id in p_ids - valid_ids
            ]

        errors = '\n'.join(errors) if errors else None
        return errors

    def _execute_handler(self, p_command, p_todo_id=None, p_output=None):
        """
        Executes a command, given as a string.
        """
        p_output = p_output or self._output
        self._console_visible = False

        self._last_cmd = (p_command, p_output == self._output)

        try:
            p_command = shlex.split(p_command)
        except ValueError as verr:
            self._print_to_console('Error: ' + str(verr))
            return

        try:
            subcommand, args = get_subcommand(p_command)
        except ConfigError as cerr:
            self._print_to_console(
                'Error: {}. Check your aliases configuration.'.format(cerr))
            return

        if subcommand is None:
            self._print_to_console(GENERIC_HELP)
            return

        env_args = (self.todolist, p_output, self._output, self._input)
        ids = None

        if '{}' in args:
            if self._has_marked_todos():
                ids = self.marked_todos
            else:
                ids = {p_todo_id} if p_todo_id else set()

            invalid_ids = self._check_id_validity(ids)

            if invalid_ids:
                self._print_to_console('Error: ' + invalid_ids)
                return

        transaction = Transaction(subcommand, env_args, ids)
        transaction.prepare(args)
        label = transaction.label
        self._backup(subcommand, p_label=label)

        try:
            if transaction.execute():
                post_archive_action = transaction.execute_post_archive_actions
                self._post_archive_action = post_archive_action
                self._post_execute()
            else:
                self._rollback()
        except TypeError:
            # TODO: show error message
            pass

    def _update_all_columns(self):
        for column, _ in self.columns.contents:
            column.update()
            column.keystate = None

    def _post_execute(self):
        # store dirty flag because base _post_execute will reset it after flush
        dirty = self.todolist.dirty
        super()._post_execute()

        if dirty or self.marked_todos:
            self._reset_state()

    def _rollback(self):
        try:
            self.backup.apply(self.todolist, p_archive=None)
        except AttributeError:
            pass

    def _repeat_last_cmd(self, p_todo_id=None):
        try:
            cmd, verbosity = self._last_cmd
        except TypeError:
            return

        self._execute_handler(cmd, p_todo_id,
                              self._output if verbosity else lambda _: None)

    def _reset_state(self):
        for widget in TodoWidget.cache.values():
            widget.unmark()
        self.marked_todos.clear()
        self._update_all_columns()

    def _blur_commandline(self):
        self._console_visible = False
        self.mainwindow.focus_item = 0

    def _focus_commandline(self):
        self.mainwindow.focus_item = 1

    def _focus_first_column(self):
        self.columns.focus_position = 0

    def _focus_last_column(self):
        end_pos = len(self.columns.contents) - 1
        self.columns.focus_position = end_pos

    def _focus_next_column(self):
        size = len(self.columns.contents)
        if self.columns.focus_position < size - 1:
            self.columns.focus_position += 1

    def _focus_previous_column(self):
        if self.columns.focus_position > 0:
            self.columns.focus_position -= 1

    def _append_column(self):
        self.viewwidget.reset()
        self.column_mode = _APPEND_COLUMN
        self._viewwidget_visible = True

    def _insert_column(self):
        self.viewwidget.reset()
        self.column_mode = _INSERT_COLUMN
        self._viewwidget_visible = True

    def _edit_column(self):
        self.viewwidget.data = self.columns.focus.view.data
        self.column_mode = _EDIT_COLUMN
        self._viewwidget_visible = True

    def _delete_column(self):
        try:
            focus = self.columns.focus_position
            del self.columns.contents[focus]

            if self.columns.contents:
                self.columns.focus_position = focus
            else:
                self._append_column()
        except IndexError:
            # no columns
            pass

    def _copy_column(self):
        self.viewwidget.data = self.columns.focus.view.data
        self.column_mode = _COPY_COLUMN
        self._viewwidget_visible = True

    def _column_action_handler(self, p_action):
        dispatch = {
            'first_column': self._focus_first_column,
            'last_column': self._focus_last_column,
            'prev_column': self._focus_previous_column,
            'next_column': self._focus_next_column,
            'append_column': self._append_column,
            'insert_column': self._insert_column,
            'edit_column': self._edit_column,
            'delete_column': self._delete_column,
            'copy_column': self._copy_column,
            'swap_left': self._swap_column_left,
            'swap_right': self._swap_column_right,
            'reset': self._reset_state,
        }
        dispatch[p_action]()

    def _handle_input(self, p_input):
        dispatch = {
            ':': self._focus_commandline,
        }

        try:
            dispatch[p_input]()
        except KeyError:
            # the key is unknown, ignore
            pass

    def _viewdata_to_view(self, p_data):
        """
        Converts a dictionary describing a view to an actual UIView instance.
        """
        sorter = Sorter(p_data['sortexpr'], p_data['groupexpr'])
        filters = []

        if not p_data['show_all']:
            filters.append(DependencyFilter(self.todolist))
            filters.append(RelevanceFilter())
            filters.append(HiddenTagFilter())

        filters += get_filter_list(p_data['filterexpr'].split())

        return UIView(sorter, filters, self.todolist, p_data)

    def _update_view(self, p_data):
        """ Creates a view from the data entered in the view widget. """
        view = self._viewdata_to_view(p_data)

        if self.column_mode == _APPEND_COLUMN or self.column_mode == _COPY_COLUMN:
            self._add_column(view)
        elif self.column_mode == _INSERT_COLUMN:
            self._add_column(view, self.columns.focus_position)
        elif self.column_mode == _EDIT_COLUMN:
            current_column = self.columns.focus

            current_column.title = p_data['title']
            current_column.view = view

        self._viewwidget_visible = False
        self._blur_commandline()

    def _add_column(self, p_view, p_pos=None):
        """
        Given an UIView, adds a new column widget with the todos in that view.

        When no position is given, it is added to the end, otherwise inserted
        before that position.
        """
        def execute_silent(p_cmd, p_todo_id=None):
            self._execute_handler(p_cmd, p_todo_id, lambda _: None)

        todolist = TodoListWidget(p_view, p_view.data['title'], self.keymap)
        urwid.connect_signal(todolist, 'execute_command_silent',
                             execute_silent)
        urwid.connect_signal(todolist, 'execute_command',
                             self._execute_handler)
        urwid.connect_signal(todolist, 'repeat_cmd', self._repeat_last_cmd)
        urwid.connect_signal(todolist, 'refresh', self.mainloop.screen.clear)
        urwid.connect_signal(todolist, 'add_pending_action', self._set_alarm)
        urwid.connect_signal(todolist, 'remove_pending_action',
                             self._remove_alarm)
        urwid.connect_signal(todolist, 'column_action',
                             self._column_action_handler)
        urwid.connect_signal(todolist, 'show_keystate', self._print_keystate)
        urwid.connect_signal(todolist, 'toggle_mark',
                             self._process_mark_toggle)

        options = self.columns.options(width_type='given',
                                       width_amount=config().column_width(),
                                       box_widget=True)

        item = (todolist, options)

        if p_pos == None:
            p_pos = len(self.columns.contents)

        self.columns.contents.insert(p_pos, item)

        self.columns.focus_position = p_pos
        self._blur_commandline()

    def _print_keystate(self, p_keystate):
        self.keystate_widget.set_text(p_keystate)
        self._keystate_visible = len(p_keystate) > 0

    def _show_completion_box(self):
        contents = self.cli_wrapper.contents
        if len(contents) == 1:
            completion_box = self.commandline.completion_box
            opts = ('given', completion_box.height)

            max_width = self.cli_wrapper.width
            pos = self.commandline.get_cursor_coords((max_width, ))[0]
            l_margin = pos - completion_box.margin
            r_margin = max_width - pos - completion_box.min_width + completion_box.margin

            padding = urwid.Padding(completion_box,
                                    min_width=completion_box.min_width,
                                    left=l_margin,
                                    right=r_margin)

            contents.insert(0, (padding, opts))
            completion_box.focus.set_attr_map({None: PaletteItem.MARKED})
            self.cli_wrapper.focus_position = 1

    def _hide_completion_box(self):
        contents = self.cli_wrapper.contents
        if len(contents) == 2:
            del contents[0]

        self.cli_wrapper.focus_position = 0

    def _set_alarm(self, p_callback):
        """ Sets alarm to execute p_action specified in 0.5 sec. """
        self._alarm = self.mainloop.set_alarm_in(0.5, p_callback)

    def _remove_alarm(self):
        """ Removes pending action alarm stored in _alarm attribute. """
        self.mainloop.remove_alarm(self._alarm)
        self._alarm = None

    def _swap_column_left(self):
        pos = self.columns.focus_position
        if pos > 0:
            _columns = self.columns.contents
            _columns[pos], _columns[pos - 1] = _columns[pos - 1], _columns[pos]
            self.columns.focus_position -= 1

    def _swap_column_right(self):
        pos = self.columns.focus_position
        _columns = self.columns.contents
        if pos < len(_columns) - 1:
            _columns[pos], _columns[pos + 1] = _columns[pos + 1], _columns[pos]
            self.columns.focus_position += 1

    @property
    def _console_visible(self):
        contents = self.mainwindow.contents
        return len(contents) == 3 and isinstance(contents[2][0], ConsoleWidget)

    @_console_visible.setter
    def _console_visible(self, p_enabled):
        contents = self.mainwindow.contents

        if p_enabled == True and len(contents) == 2:
            contents.append((self.console, ('pack', None)))
            self.mainwindow.focus_position = 2
        elif p_enabled == False and self._console_visible:
            self.console.clear()
            del contents[2]
            self.mainwindow.focus_position = 0

    @property
    def _keystate_visible(self):
        contents = self.status_line.contents
        return len(contents) == 2 and isinstance(
            contents[1][0].original_widget, KeystateWidget)

    @_keystate_visible.setter
    def _keystate_visible(self, p_enabled):
        contents = self.status_line.contents

        if p_enabled and len(contents) == 1:
            contents.append(
                (urwid.Filler(self.keystate_widget), ('weight', 1, True)))
        elif not p_enabled and self._keystate_visible:
            del contents[1]

    @property
    def _viewwidget_visible(self):
        contents = self.mainwindow.contents
        return len(contents) == 3 and isinstance(contents[2][0], ViewWidget)

    @_viewwidget_visible.setter
    def _viewwidget_visible(self, p_enabled):
        contents = self.mainwindow.contents

        if p_enabled == True and len(contents) == 2:
            contents.append((self.viewwidget, ('pack', None)))
            self.mainwindow.focus_position = 2
        elif p_enabled == False and self._viewwidget_visible:
            del contents[2]

    def _print_to_console(self, p_text):
        self._console_visible = True
        self.console.print_text(p_text)

    def _redraw(self):
        self.mainloop.draw_screen()

    def _input(self, p_question):
        self._print_to_console(p_question)

        # don't wait for the event loop to enter idle, there is a command
        # waiting for input right now, so already go ahead and draw the
        # question on screen.
        self._redraw()

        user_input = self.mainloop.screen.get_input()
        self._console_visible = False

        return user_input[0]

    def _console_width(self):
        terminal_size = namedtuple('Terminal_Size', 'columns lines')
        width = self.cli_wrapper.width - 2
        sz = terminal_size(width, 1)

        return sz

    def _has_marked_todos(self):
        return len(self.marked_todos) > 0

    def _process_mark_toggle(self, p_todo_id, p_force=None):
        """
        Adds p_todo_id to marked_todos attribute and returns True if p_todo_id
        is not already marked. Removes p_todo_id from marked_todos and returns
        False otherwise.

        p_force parameter accepting 'mark' or 'unmark' values, if set, can force
        desired action without checking p_todo_id presence in marked_todos.
        """
        if p_force in ['mark', 'unmark']:
            action = p_force
        else:
            action = 'mark' if p_todo_id not in self.marked_todos else 'unmark'

        if action == 'mark':
            self.marked_todos.add(p_todo_id)
            return True
        else:
            self.marked_todos.remove(p_todo_id)
            return False

    def run(self):
        layout = columns(self.alt_layout_path)
        if len(layout) > 0:
            for column in layout:
                self._add_column(self._viewdata_to_view(column))
        else:
            dummy = {
                "title": "All tasks",
                "sortexpr": "desc:prio",
                "groupexpr": "",
                "filterexpr": "",
                "show_all": True,
            }
            self._add_column(self._viewdata_to_view(dummy))

        # make sure that the first column is focused on startup
        self.columns.focus_position = 0

        while True:
            try:
                self.mainloop.run()
            except KeyboardInterrupt:
                self._print_to_console(
                    "Use the 'quit' command to exit topydo.")
Ejemplo n.º 5
0
    def __init__(self):
        super().__init__()

        args = self._process_flags()

        try:
            opts, args = getopt.getopt(args[1:], 'l:')
        except getopt.GetoptError as e:
            error(str(e))
            sys.exit(1)

        self.alt_layout_path = None

        for opt, value in opts:
            if opt == "-l":
                self.alt_layout_path = value

        def callback():
            self.todolist.erase()
            self.todolist.add_list(self.todofile.read())
            self._update_all_columns()
            self._redraw()

        self.column_width = config().column_width()
        self.todofile = TodoFileWatched(config().todotxt(), callback)
        self.todolist = TodoList.TodoList(self.todofile.read())

        self.marked_todos = set()

        self.columns = urwid.Columns([],
                                     dividechars=0,
                                     min_width=config().column_width())
        completer = ColumnCompleter(self.todolist)
        self.commandline = CommandLineWidget(completer, 'topydo> ')
        self.keystate_widget = KeystateWidget()
        self.status_line = urwid.Columns([
            ('weight', 1, urwid.Filler(self.commandline)),
        ])
        self.cli_wrapper = CliWrapper([(1, self.status_line)])

        self.keymap = config().column_keymap()
        self._alarm = None

        self._last_cmd = None

        # console widget
        self.console = ConsoleWidget()
        get_terminal_size(self._console_width)

        urwid.connect_signal(self.commandline, 'blur', self._blur_commandline)
        urwid.connect_signal(self.commandline, 'execute_command',
                             self._execute_handler)
        urwid.connect_signal(self.commandline, 'show_completions',
                             self._show_completion_box)
        urwid.connect_signal(self.commandline, 'hide_completions',
                             self._hide_completion_box)

        def hide_console(p_focus_commandline=False):
            if p_focus_commandline:
                self._focus_commandline()
            else:
                self._console_visible = False

        urwid.connect_signal(self.console, 'close', hide_console)

        # view widget
        self.viewwidget = ViewWidget(self.todolist)

        urwid.connect_signal(self.viewwidget, 'save',
                             lambda: self._update_view(self.viewwidget.data))

        def hide_viewwidget():
            # prevent the view widget to be hidden when the last column was
            # deleted
            if self.columns.contents:
                self._viewwidget_visible = False
                self._blur_commandline()

        urwid.connect_signal(self.viewwidget, 'close', hide_viewwidget)

        self.mainwindow = MainPile([
            ('weight', 1, self.columns),
            ('pack', self.cli_wrapper),
        ])

        urwid.connect_signal(self.mainwindow, 'blur_console', hide_console)

        # the columns should have keyboard focus
        self._blur_commandline()

        self._screen = urwid.raw_display.Screen()

        if config().colors():
            self._screen.register_palette(self._create_color_palette())
        else:
            self._screen.register_palette(self._create_mono_palette())

        self._screen.set_terminal_properties(256)

        self.mainloop = urwid.MainLoop(self.mainwindow,
                                       screen=self._screen,
                                       unhandled_input=self._handle_input,
                                       pop_ups=True)

        self.column_mode = _APPEND_COLUMN
        self._set_alarm_for_next_midnight_update()
Ejemplo n.º 6
0
    def __init__(self):
        super().__init__()

        args = self._process_flags()

        try:
            opts, args = getopt.getopt(args[1:], 'l:')
        except getopt.GetoptError as e:
            error(str(e))
            sys.exit(1)

        self.alt_layout_path = None

        for opt, value in opts:
            if opt == "-l":
                self.alt_layout_path = value

        def callback():
            self.todolist.erase()
            self.todolist.add_list(self.todofile.read())
            self._update_all_columns()
            self._redraw()

        self.column_width = config().column_width()
        self.todofile = TodoFileWatched(config().todotxt(), callback)
        self.todolist = TodoList.TodoList(self.todofile.read())

        self.marked_todos = set()

        self.columns = urwid.Columns([], dividechars=0,
            min_width=config().column_width())
        completer = ColumnCompleter(self.todolist)
        self.commandline = CommandLineWidget(completer, 'topydo> ')
        self.keystate_widget = KeystateWidget()
        self.status_line = urwid.Columns([
            ('weight', 1, urwid.Filler(self.commandline)),
        ])
        self.cli_wrapper = CliWrapper([(1, self.status_line)])

        self.keymap = config().column_keymap()
        self._alarm = None

        self._last_cmd = None

        # console widget
        self.console = ConsoleWidget()
        get_terminal_size(self._console_width)

        urwid.connect_signal(self.commandline, 'blur', self._blur_commandline)
        urwid.connect_signal(self.commandline, 'execute_command',
                             self._execute_handler)
        urwid.connect_signal(self.commandline, 'show_completions', self._show_completion_box)
        urwid.connect_signal(self.commandline, 'hide_completions', self._hide_completion_box)

        def hide_console(p_focus_commandline=False):
            if p_focus_commandline:
                self._focus_commandline()
            else:
                self._console_visible = False
        urwid.connect_signal(self.console, 'close', hide_console)

        # view widget
        self.viewwidget = ViewWidget(self.todolist)

        urwid.connect_signal(self.viewwidget, 'save',
                             lambda: self._update_view(self.viewwidget.data))

        def hide_viewwidget():
            # prevent the view widget to be hidden when the last column was
            # deleted
            if self.columns.contents:
                self._viewwidget_visible = False
                self._blur_commandline()

        urwid.connect_signal(self.viewwidget, 'close', hide_viewwidget)

        self.mainwindow = MainPile([
            ('weight', 1, self.columns),
            ('pack', self.cli_wrapper),
        ])

        urwid.connect_signal(self.mainwindow, 'blur_console', hide_console)

        # the columns should have keyboard focus
        self._blur_commandline()

        self._screen = urwid.raw_display.Screen()

        def create_color_palette():
            project_color = to_urwid_color(config().project_color())
            context_color = to_urwid_color(config().context_color())
            metadata_color = to_urwid_color(config().metadata_color())
            link_color = to_urwid_color(config().link_color())
            focus_background_color = to_urwid_color(config().focus_background_color())
            marked_background_color = to_urwid_color(config().marked_background_color())

            palette = [
                (PaletteItem.PROJECT, '', '', '', project_color, ''),
                (PaletteItem.PROJECT_FOCUS, '', 'light gray', '', project_color, focus_background_color),
                (PaletteItem.CONTEXT, '', '', '', context_color, ''),
                (PaletteItem.CONTEXT_FOCUS, '', 'light gray', '', context_color, focus_background_color),
                (PaletteItem.METADATA, '', '', '', metadata_color, ''),
                (PaletteItem.METADATA_FOCUS, '', 'light gray', '', metadata_color, focus_background_color),
                (PaletteItem.LINK, '', '', '', link_color, ''),
                (PaletteItem.LINK_FOCUS, '', 'light gray', '', link_color, focus_background_color),
                (PaletteItem.DEFAULT_FOCUS, '', 'light gray', '', '', focus_background_color),
                (PaletteItem.MARKED, '', 'light blue', '', '', marked_background_color),
            ]

            for C in ascii_uppercase:
                pri_color_cfg = config().priority_color(C)

                pri_color = to_urwid_color(pri_color_cfg)
                pri_color_focus = pri_color if not pri_color_cfg.is_neutral() else 'black'

                palette.append((
                    'pri_' + C, '', '', '', pri_color, ''
                ))
                palette.append((
                    'pri_' + C + '_focus', '', 'light gray', '', pri_color_focus, focus_background_color
                ))

            return palette

        def create_mono_palette():
            palette = [
                (PaletteItem.DEFAULT_FOCUS, 'black', 'light gray'),
                (PaletteItem.PROJECT_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.CONTEXT_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.METADATA_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.LINK_FOCUS, PaletteItem.DEFAULT_FOCUS),
                (PaletteItem.MARKED, 'default,underline,bold', 'default'),
            ]

            for C in ascii_uppercase:
                palette.append(
                    ('pri_' + C + '_focus', PaletteItem.DEFAULT_FOCUS)
                )

            return palette

        if config().colors():
            self._screen.register_palette(create_color_palette())
        else:
            self._screen.register_palette(create_mono_palette())

        self._screen.set_terminal_properties(256)

        self.mainloop = urwid.MainLoop(
            self.mainwindow,
            screen=self._screen,
            unhandled_input=self._handle_input,
            pop_ups=True
        )

        self.column_mode = _APPEND_COLUMN
        self._set_alarm_for_next_midnight_update()