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# Copyright (C) 2009, 2010, 2011 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/>.
"""
The titlebar is the widget at the top, giving you broad overview.
It displays the current path among other things.
"""
from os.path import basename
from . import Widget
from ranger.gui.bar import Bar
class TitleBar(Widget):
old_cf = None
old_keybuffer = None
old_wid = None
result = None
throbber = ' '
need_redraw = False
tab_width = 0
def __init__(self, *args, **keywords):
Widget.__init__(self, *args, **keywords)
self.fm.signal_bind('tab.change', self.request_redraw, weak=True)
def request_redraw(self):
self.need_redraw = True
def draw(self):
if self.need_redraw or \
self.env.cf != self.old_cf or\
str(self.env.keybuffer) != str(self.old_keybuffer) or\
self.wid != self.old_wid:
self.need_redraw = False
self.old_wid = self.wid
self.old_cf = self.env.cf
self._calc_bar()
self._print_result(self.result)
if self.wid > 2:
self.color('in_titlebar', 'throbber')
self.addnstr(self.y, self.wid - 2 - self.tab_width,
self.throbber, 1)
def click(self, event):
"""Handle a MouseEvent"""
direction = event.mouse_wheel_direction()
if direction:
self.fm.tab_move(direction)
self.need_redraw = True
return True
if not event.pressed(1) or not self.result:
return False
pos = self.wid - 1
for tabname in reversed(self.fm._get_tab_list()):
tabtext = self._get_tab_text(tabname)
pos -= len(tabtext)
if event.x > pos:
self.fm.tab_open(tabname)
self.need_redraw = True
return True
pos = 0
for i, part in enumerate(self.result):
pos += len(part)
if event.x < pos:
if i < 2:
self.fm.enter_dir("~")
elif i == 2:
self.fm.enter_dir("/")
else:
try:
self.fm.enter_dir(part.directory)
except:
pass
return True
return False
def _calc_bar(self):
bar = Bar('in_titlebar')
self._get_left_part(bar)
self._get_right_part(bar)
try:
bar.shrink_from_the_left(self.wid)
except ValueError:
bar.shrink_by_removing(self.wid)
self.result = bar.combine()
def _get_left_part(self, bar):
# TODO: Properly escape non-printable chars without breaking unicode
if self.env.username == 'root':
clr = 'bad'
else:
clr = 'good'
bar.add(self.env.username, 'hostname', clr, fixed=True)
bar.add('@', 'hostname', clr, fixed=True)
bar.add(self.env.hostname, 'hostname', clr, fixed=True)
bar.add(':', 'hostname', clr, fixed=True)
pathway = self.env.pathway
if self.settings.tilde_in_titlebar and \
self.fm.env.cwd.path.startswith(self.env.home_path):
pathway = pathway[self.env.home_path.count('/')+1:]
bar.add('~/', 'directory', fixed=True)
for path in pathway:
if path.is_link:
clr = 'link'
else:
clr = 'directory'
bar.add(path.basename, clr, directory=path)
bar.add('/', clr, fixed=True, directory=path)
if self.env.cf is not None:
bar.add(self.env.cf.basename, 'file')
def _get_right_part(self, bar):
# TODO: fix that pressed keys are cut off when chaining CTRL keys
kb = str(self.env.keybuffer)
self.old_keybuffer = kb
bar.addright(kb, 'keybuffer', fixed=True)
bar.addright(' ', 'space', fixed=True)
self.tab_width = 0
if len(self.fm.tabs) > 1:
for tabname in self.fm._get_tab_list():
tabtext = self._get_tab_text(tabname)
self.tab_width += len(tabtext)
clr = 'good' if tabname == self.fm.current_tab else 'bad'
bar.addright(tabtext, 'tab', clr, fixed=True)
def _get_tab_text(self, tabname):
result = ' ' + str(tabname)
if self.settings.dirname_in_tabs:
dirname = basename(self.fm.tabs[tabname])
if not dirname:
result += ":/"
elif len(dirname) > 15:
result += ":" + dirname[:14] + "~"
else:
result += ":" + dirname
return result
def _print_result(self, result):
self.win.move(0, 0)
for part in result:
self.color(*part.lst)
y, x = self.win.getyx()
self.addstr(y, x, str(part))
self.color_reset()
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