def get_ui(position=None):
"""
Returns user interface (lightbar, pager).
Optional argument position is tuple position of prior lightbar instance.
"""
from x84.bbs import getterminal, Lightbar, Pager
term = getterminal()
assert term.height > 10 and term.width >= 40
# +-+ +----+
# |lb |pager
# +-+ +----+
height = term.height - 7
lb_width = int(term.width * .3)
pg_width = term.width - (lb_width)
lb_xloc = (term.width / 2) - (term.width / 2)
pg_xloc = lb_xloc + lb_width
lightbar = Lightbar(height, lb_width, (term.height - height - 1), lb_xloc)
pager = Pager(height, pg_width, (term.height - height - 1), pg_xloc)
pager.ypadding = 2
pager.xpadding = 2
lightbar.update(get_bbslist(max_len=lightbar.visible_width))
## pressing Return is same as 't'elnet
lightbar.keyset['enter'].extend((u't', u'T'))
## re-select previous selection
if position is not None:
lightbar.position = position
return (pager, lightbar)
def get_ui(position=None):
"""
Returns user interface (lightbar, pager).
Optional argument position is tuple position of prior lightbar instance.
"""
from x84.bbs import getterminal, Lightbar, Pager
term = getterminal()
assert term.height > 10 and term.width >= 40
# +-+ +----+
# |lb |pager
# +-+ +----+
height = term.height - 7
lb_width = int(term.width * .3)
pg_width = term.width - (lb_width)
lb_xloc = (term.width / 2) - (term.width / 2)
pg_xloc = lb_xloc + lb_width
lightbar = Lightbar(height, lb_width, (term.height - height - 1), lb_xloc)
pager = Pager(height, pg_width, (term.height - height - 1), pg_xloc)
pager.ypadding = 2
pager.xpadding = 2
lightbar.update(get_bbslist(max_len=lightbar.visible_width))
## pressing Return is same as 't'elnet
lightbar.keyset['enter'].extend((u't', u'T'))
## re-select previous selection
if position is not None:
lightbar.position = position
return (pager, lightbar)
def get_pager():
""" Returns pager window for oneliners content. """
from x84.bbs import getterminal, Pager
term = getterminal()
xloc = max(0, (term.width / 2) - 50)
width = min(term.width - 0, 100)
pager = Pager(yloc=7, xloc=xloc, height=term.height - 10, width=width)
pager.colors['border'] = term.blue
return pager
def get_pager():
""" Returns pager window for oneliners content. """
from x84.bbs import getterminal, Pager
term = getterminal()
xloc = max(0, (term.width / 2) - 50)
width = min(term.width - 0, 100)
pager = Pager(yloc=7, xloc=xloc, height=term.height - 10, width=width)
pager.colors['border'] = term.blue
return pager
def get_pager(pager=None):
""" Return Pager for use as chat window. """
from x84.bbs import getterminal, Pager
term = getterminal()
height = (term.height - 4)
width = int(term.width * .9)
yloc = term.height - height - 1
xloc = int(term.width / 2) - (width / 2)
new_pager = Pager(height, width, yloc, xloc)
if pager is not None:
content = pager.content
# little hack to keep empty lines from re-importing
for row in range(len(content)):
ucs = content[row]
if ucs.startswith(u'\x1b(B'):
ucs = ucs[len(u'\x1b(B'):]
if ucs.endswith(u'\x1b[m'):
ucs = ucs[len(u'\x1b[m'):]
content[row] = ucs
new_pager.update('\r\n'.join(content))
new_pager.enable_scrolling = True
new_pager.colors['border'] = term.cyan
new_pager.glyphs['right-vert'] = u'|'
new_pager.glyphs['left-vert'] = u'|'
new_pager.glyphs['bot-horiz'] = u''
return new_pager
def get_pager(pager=None):
""" Return Pager for use as chat window. """
from x84.bbs import getterminal, Pager
term = getterminal()
height = (term.height - 4)
width = int(term.width * .9)
yloc = term.height - height - 1
xloc = int(term.width / 2) - (width / 2)
new_pager = Pager(height, width, yloc, xloc)
if pager is not None:
content = pager.content
# little hack to keep empty lines from re-importing
for row in range(len(content)):
ucs = content[row]
if ucs.startswith(u'\x1b(B'):
ucs = ucs[len(u'\x1b(B'):]
if ucs.endswith(u'\x1b[m'):
ucs = ucs[len(u'\x1b[m'):]
content[row] = ucs
new_pager.update('\r\n'.join(content))
new_pager.enable_scrolling = True
new_pager.colors['border'] = term.blue
new_pager.glyphs['right-vert'] = u'|'
new_pager.glyphs['left-vert'] = u'|'
new_pager.glyphs['bot-horiz'] = u''
return new_pager
def get_reader():
"""
Provide Pager UI element for message reading.
"""
reader_height = (term.height - (term.height / 3) - 2)
reader_indent = 2
reader_width = min(term.width - 1, min(term.width - reader_indent, 80))
reader_ypos = ((term.height - 1 ) - reader_height if
(term.width - reader_width) < len_preview else 2)
reader_height = term.height - reader_ypos - 1
msg_reader = Pager(
height=reader_height,
width=reader_width,
yloc=reader_ypos,
xloc=min(len_preview + 2, term.width - reader_width))
msg_reader.glyphs['top-horiz'] = u''
msg_reader.glyphs['right-vert'] = u''
return msg_reader
def prompt_resize_term(session, term, name):
want_cols = get_ini('sesame', '{0}_cols'.format(name), getter='getint')
want_rows = get_ini('sesame', '{0}_rows'.format(name), getter='getint')
if want_cols and want_rows and not term.kind.startswith('ansi'):
while not (term.width == want_cols and term.height == want_rows):
resize_msg = (u'Please resize your window to {0} x {1} '
u'current size is {term.width} x {term.height} '
u'or press return. Press escape to cancel.'.format(
want_cols, want_rows, term=term))
echo(term.normal + term.home + term.clear_eos + term.home)
pager = Pager(yloc=0,
xloc=0,
width=want_cols,
height=want_rows,
colors={'border': term.bold_red})
echo(term.move(term.height - 1, term.width))
echo(pager.refresh() + pager.border())
width = min(70, term.width - 5)
for yoff, line in enumerate(term.wrap(resize_msg, width)):
echo(u''.join((term.move(yoff + 1, 5), line.rstrip())))
event, data = session.read_events(('input', 'refresh'))
if event == 'refresh':
continue
if event == 'input':
session.buffer_input(data, pushback=True)
inp = term.inkey(0)
while inp:
if inp.code == term.KEY_ENTER:
echo(term.normal + term.home + term.clear_eos)
return True
if inp.code == term.KEY_ESCAPE:
return False
inp = term.inkey(0)
return True
# if terminal type is 'ansi', just pass-through
return True
def prompt_resize_term(session, term, name):
want_cols = get_ini('sesame', '{0}_cols'.format(name), getter='getint')
want_rows = get_ini('sesame', '{0}_rows'.format(name), getter='getint')
if want_cols and want_rows and not term.kind.startswith('ansi'):
while not (term.width == want_cols and
term.height == want_rows):
resize_msg = (u'Please resize your window to {0} x {1} '
u'current size is {term.width} x {term.height} '
u'or press return. Press escape to cancel.'
.format(want_cols, want_rows, term=term))
echo(term.normal + term.home + term.clear_eos + term.home)
pager = Pager(yloc=0, xloc=0, width=want_cols, height=want_rows,
colors={'border': term.bold_red})
echo(term.move(term.height - 1, term.width))
echo(pager.refresh() + pager.border())
width = min(70, term.width - 5)
for yoff, line in enumerate(term.wrap(resize_msg, width)):
echo(u''.join((term.move(yoff + 1, 5), line.rstrip())))
event, data = session.read_events(('input', 'refresh'))
if event == 'refresh':
continue
if event == 'input':
session.buffer_input(data, pushback=True)
inp = term.inkey(0)
while inp:
if inp.code == term.KEY_ENTER:
echo(term.normal + term.home + term.clear_eos)
return True
if inp.code == term.KEY_ESCAPE:
return False
inp = term.inkey(0)
return True
# if terminal type is 'ansi', just pass-through
return True
def get_pager(news_txt, position=None):
"""
Return Pager instance with content ``news_txt``.
"""
from x84.bbs import getterminal, Pager
term = getterminal()
width = min(130, (term.width - 2))
height = term.height - len(redraw(None).splitlines())
yloc = term.height - height
xloc = (term.width / 2) - (width / 2)
pager = Pager(height, width, yloc, xloc)
pager.colors['border'] = term.blue
pager.glyphs['left-vert'] = u''
pager.glyphs['right-vert'] = u''
pager.update('\n'.join(news_txt))
if position is not None:
pager.position = position
return pager
def get_pager(news_txt, position=None):
"""
Return Pager instance with content ``news_txt``.
"""
from x84.bbs import getterminal, Pager
term = getterminal()
width = min(130, (term.width - 2))
height = term.height - len(redraw(None).splitlines())
yloc = term.height - height
xloc = (term.width / 2) - (width / 2)
pager = Pager(height, width, yloc, xloc)
pager.colors['border'] = term.blue
pager.glyphs['left-vert'] = u''
pager.glyphs['right-vert'] = u''
pager.update('\n'.join(news_txt))
if position is not None:
pager.position = position
return pager
def show_scores():
from x84.bbs import DBProxy, Pager, getterminal
from x84.bbs import echo, getsession, ini
session, term = getsession(), getterminal()
allscores = DBProxy('tetris').items()
if 0 == len(allscores):
return
# line up over tetris game, but logo & 'made by jojo' in view
# -- since we have so much screen width, columize the scores,
# the math brings it out to 2 columns, but fmt is adjustable
pager_title = term.blue_reverse_underline('- hiGh SCOREs -')
len_handle = ini.CFG.getint('nua', 'max_user')
score_fmt = u'%s %s %s %s'
len_pos = 2
len_score = 10
len_level = 3
height, width = 11, 73
yloc, xloc = 10, 3
pager = Pager(height=height, width=width, yloc=yloc, xloc=xloc)
pager.xpadding = 1
pager.glyphs['left-vert'] = u''
pager.glyphs['right-vert'] = u''
pager.colors['border'] = term.blue_reverse
pager.alignment = 'center'
# pre-fesh pager border before fetch
echo(pager.border() + pager.title(pager_title) + pager.clear())
highscores = sorted(
[(_score, _level, _handle.decode('utf8'))
for (_handle, (_score, _level, _)) in allscores],
reverse=True)
pager.append(score_fmt % (
term.bold_blue_underline('No'.ljust(len_pos)),
term.bold_blue_underline('SCORE'.ljust(len_score)),
term.bold_blue_underline('lVl'.ljust(len_level)),
term.bold_blue_underline('hANdlE'.rjust(len_handle),)))
pos = 0
for pos, (_score, _level, _handle) in enumerate(highscores):
if _handle == session.user.handle:
pager.append(score_fmt % (
term.blue_reverse(str(pos + 1).ljust(len_pos)),
term.blue_reverse(str(_score).ljust(len_score)),
term.blue_reverse(str(_level).ljust(len_level)),
term.blue_reverse(_handle.rjust(len_handle)),))
else:
pager.append(score_fmt % (
term.bold_blue(str(pos + 1).ljust(len_pos)),
term.blue(str(_score).ljust(len_score)),
term.blue(str(_level).ljust(len_level)),
_handle.rjust(len_handle),))
# append additional empty slot rows
while len(pager.content) < pager.visible_height:
pos += 1
pager.append(score_fmt % (
term.bold_blue(str(pos + 1).ljust(len_pos)),
term.bold_black(u'.'.ljust(len_score)),
term.bold_black(u'.'.ljust(len_level)),
term.bold_black(u'.'.rjust(len_handle)),))
dirty = 2 # 2=do not refresh border & title
pager.move_home()
while not pager.quit:
# 1=full refresh
dirty = 1 if session.poll_event('refresh') else dirty
if dirty:
echo(u''.join((
term.normal,
((pager.border() + pager.title(pager_title))
if dirty != 2 else u''),
pager.refresh(),
pager.footer(u''.join((
term.underline_blue('q'),
term.bold_blue('uit')))),
)))
dirty = 0
echo(pager.process_keystroke(term.inkey(1)))
def show_scores():
from x84.bbs import DBProxy, Pager, getterminal
from x84.bbs import getch, echo, getsession, ini
session, term = getsession(), getterminal()
allscores = DBProxy('tetris').items()
if 0 == len(allscores):
return
# line up over tetris game, but logo & 'made by jojo' in view
# -- since we have so much screen width, columize the scores,
# the math brings it out to 2 columns, but fmt is adjustable
pager_title = term.blue_reverse_underline('- hiGh SCOREs -')
len_handle = ini.CFG.getint('nua', 'max_user')
score_fmt = u'%s %s %s %s'
len_pos = 2
len_score = 10
len_level = 3
height, width = 11, 73
yloc, xloc = 10, 3
pager = Pager(height=height, width=width, yloc=yloc, xloc=xloc)
pager.xpadding = 1
pager.glyphs['left-vert'] = u''
pager.glyphs['right-vert'] = u''
pager.colors['border'] = term.blue_reverse
pager.alignment = 'center'
# pre-fesh pager border before fetch
echo(pager.border() + pager.title(pager_title) + pager.clear())
highscores = sorted(
[(_score, _level, _handle.decode('utf8'))
for (_handle, (_score, _level, _)) in allscores],
reverse=True)
pager.append(score_fmt % (
term.bold_blue_underline('No'.ljust(len_pos)),
term.bold_blue_underline('SCORE'.ljust(len_score)),
term.bold_blue_underline('lVl'.ljust(len_level)),
term.bold_blue_underline('hANdlE'.rjust(len_handle),)))
pos = 0
for pos, (_score, _level, _handle) in enumerate(highscores):
if _handle == session.user.handle:
pager.append(score_fmt % (
term.blue_reverse(str(pos + 1).ljust(len_pos)),
term.blue_reverse(str(_score).ljust(len_score)),
term.blue_reverse(str(_level).ljust(len_level)),
term.blue_reverse(_handle.rjust(len_handle)),))
else:
pager.append(score_fmt % (
term.bold_blue(str(pos + 1).ljust(len_pos)),
term.blue(str(_score).ljust(len_score)),
term.blue(str(_level).ljust(len_level)),
_handle.rjust(len_handle),))
# append additional empty slot rows
while len(pager.content) < pager.visible_height:
pos += 1
pager.append(score_fmt % (
term.bold_blue(str(pos + 1).ljust(len_pos)),
term.bold_black(u'.'.ljust(len_score)),
term.bold_black(u'.'.ljust(len_level)),
term.bold_black(u'.'.rjust(len_handle)),))
dirty = 2 # 2=do not refresh border & title
pager.move_home()
while not pager.quit:
# 1=full refresh
dirty = 1 if session.poll_event('refresh') else dirty
if dirty:
echo(u''.join((
term.normal,
((pager.border() + pager.title(pager_title))
if dirty != 2 else u''),
pager.refresh(),
pager.footer(u''.join((
term.underline_blue('q'),
term.bold_blue('uit')))),
)))
dirty = 0
echo(pager.process_keystroke(getch(1)))
def main(save_key=u'draft'):
""" Main procedure. """
# pylint: disable=R0914,R0912,R0915
# Too many local variables
# Too many branches
# Too many statements
from x84.bbs import getsession, getterminal, echo, getch, Ansi, Pager
session, term = getsession(), getterminal()
movement = (term.KEY_UP, term.KEY_DOWN, term.KEY_NPAGE,
term.KEY_PPAGE, term.KEY_HOME, term.KEY_END,
u'\r', term.KEY_ENTER)
keyset = {'edit': (term.KEY_ENTER,),
'command': (unichr(27), term.KEY_ESCAPE),
'kill': (u'K',),
'undo': (u'u', 'U',),
'goto': (u'G',),
'insert': (u'I',),
'insert-before': (u'O',),
'insert-after': (u'o',),
'join': (u'J',),
'rubout': (unichr(8), unichr(127),
unichr(23), term.KEY_BACKSPACE,),
}
def merge():
"""
Merges line editor content as a replacement for the currently
selected lightbar row. Returns True if text inserted caused
additional rows to be appended, which is meaningful in a window
refresh context.
"""
lightbar.content[lightbar.index] = [
lightbar.selection[0],
softwrap_join(wrap_rstrip(lneditor.content))
+ HARDWRAP]
prior_length = len(lightbar.content)
prior_position = lightbar.position
set_lbcontent(lightbar, get_lbcontent(lightbar))
if len(lightbar.content) - prior_length == 0:
echo(lightbar.refresh_row(prior_position[0]))
return False
while len(lightbar.content) - prior_length > 0:
# hidden move-down for each appended line
lightbar.move_down()
prior_length += 1
return True
def statusline(lightbar):
"""
Display status line and command help on ``lightbar`` borders
"""
lightbar.colors['border'] = term.red if edit else term.yellow
keyset_cmd = u''
if not edit:
keyset_cmd = u''.join((
term.yellow(u'-( '),
term.yellow_underline(u'S'), u':', term.bold(u'ave'),
u' ',
term.yellow_underline(u'A'), u':', term.bold(u'bort'),
u' ',
term.yellow_underline(u'?'), u':', term.bold(u'help'),
term.yellow(u' )-'),))
keyset_cmd = lightbar.pos(lightbar.height - 1,
max(0, lightbar.width - (len(Ansi(keyset_cmd)) + 3))
) + keyset_cmd
return u''.join((
lightbar.border(),
keyset_cmd,
lightbar.pos(lightbar.height, lightbar.xpadding),
u''.join((
term.red(u'-[ '),
u'EditiNG liNE ',
term.reverse_red('%d' % (lightbar.index + 1,)),
term.red(u' ]-'),)) if edit else u''.join((
term.yellow(u'-( '),
u'liNE ',
term.yellow('%d/%d ' % (
lightbar.index + 1,
len(lightbar.content),)),
'%d%% ' % (
int((float(lightbar.index + 1)
/ max(1, len(lightbar.content))) * 100)),
term.yellow(u' )-'),)),
lightbar.title(u''.join((
term.red('-] '),
term.bold(u'Escape'),
u':', term.bold_red(u'command mode'),
term.red(' [-'),)
) if edit else u''.join((
term.yellow('-( '),
term.bold(u'Enter'),
u':', term.bold_yellow(u'edit mode'),
term.yellow(' )-'),))),))
def redraw_lneditor(lightbar, lneditor):
"""
Return ucs suitable for refreshing line editor.
"""
return ''.join((
term.normal,
statusline(lightbar),
lneditor.border(),
lneditor.refresh()))
def get_ui(ucs, lightbar=None):
"""
Returns Lightbar and ScrollingEditor instance.
"""
lbr = get_lightbar(ucs)
lbr.position = (lightbar.position
if lightbar is not None else (0, 0))
lne = get_lneditor(lbr)
return lbr, lne
def banner():
"""
Returns string suitable clearing screen
"""
return u''.join((
term.move(0, 0),
term.normal,
term.clear))
def redraw(lightbar, lneditor):
"""
Returns ucs suitable for redrawing Lightbar
and ScrollingEditor UI elements.
"""
return u''.join((
term.normal,
redraw_lightbar(lightbar),
redraw_lneditor(lightbar, lneditor) if edit else u'',
))
def redraw_lightbar(lightbar):
""" Returns ucs suitable for redrawing Lightbar. """
return u''.join((
statusline(lightbar),
lightbar.refresh(),))
def resize(lightbar):
""" Resize Lightbar. """
if edit:
# always re-merge current line on resize,
merge()
lbr, lne = get_ui(get_lbcontent(lightbar), lightbar)
echo(redraw(lbr, lne))
return lbr, lne
ucs = session.user.get(save_key, u'')
lightbar, lneditor = get_ui(ucs, None)
echo(banner())
dirty = True
edit = False
digbuf, num_repeat = u'', -1
count_repeat = lambda: range(max(num_repeat, 1))
while True:
# poll for refresh
if session.poll_event('refresh'):
echo(banner())
lightbar, lneditor = resize(lightbar)
dirty = True
if dirty:
session.activity = 'editing %s' % (save_key,)
echo(redraw(lightbar, lneditor))
dirty = False
# poll for input
inp = getch(1)
# buffer keystrokes for repeat
if (not edit and inp is not None
and type(inp) is not int
and inp.isdigit()):
digbuf += inp
if len(digbuf) > 10:
# overflow,
echo(u'\a')
digbuf = inp
try:
num_repeat = int(digbuf)
except ValueError:
try:
num_repeat = int(inp)
except ValueError:
pass
continue
else:
digbuf = u''
# toggle edit mode,
if inp in keyset['command'] or not edit and inp in keyset['edit']:
edit = not edit # toggle
if not edit:
# switched to command mode, merge our lines
echo(term.normal + lneditor.erase_border())
merge()
lightbar.colors['highlight'] = term.yellow_reverse
else:
# switched to edit mode, save draft,
# instantiate new line editor
save_draft(save_key, get_lbcontent(lightbar))
lneditor = get_lneditor(lightbar)
lightbar.colors['highlight'] = term.red_reverse
dirty = True
# command mode, kill line
elif not edit and inp in keyset['kill']:
# when 'killing' a line, make accomidations to clear
# bottom-most row, otherwise a ghosting effect occurs
for _ in count_repeat():
del lightbar.content[lightbar.index]
set_lbcontent(lightbar, get_lbcontent(lightbar))
if lightbar.visible_bottom > len(lightbar.content):
echo(lightbar.refresh_row(lightbar.visible_bottom + 1))
else:
dirty = True
save_draft(save_key, get_lbcontent(lightbar))
# command mode, insert line
elif not edit and inp in keyset['insert']:
for _ in count_repeat():
lightbar.content.insert(lightbar.index,
(lightbar.index, HARDWRAP,))
set_lbcontent(lightbar, get_lbcontent(lightbar))
save_draft(save_key, get_lbcontent(lightbar))
dirty = True
# command mode; goto line
elif not edit and inp in keyset['goto']:
if num_repeat == -1:
# 'G' alone goes to end of file,
num_repeat = len(lightbar.content)
echo(lightbar.goto((num_repeat or 1) - 1))
echo(statusline(lightbar))
# command mode; insert-before (switch to edit mode)
elif not edit and inp in keyset['insert-before']:
lightbar.content.insert(lightbar.index,
(lightbar.index, HARDWRAP,))
set_lbcontent(lightbar, get_lbcontent(lightbar))
edit = dirty = True
# switched to edit mode, save draft,
# instantiate new line editor
lightbar.colors['highlight'] = term.red_reverse
lneditor = get_lneditor(lightbar)
save_draft(save_key, get_lbcontent(lightbar))
# command mode; insert-after (switch to edit mode)
elif not edit and inp in keyset['insert-after']:
lightbar.content.insert(lightbar.index + 1,
(lightbar.index + 1, HARDWRAP,))
set_lbcontent(lightbar, get_lbcontent(lightbar))
edit = dirty = True
# switched to edit mode, save draft,
# instantiate new line editor
lightbar.colors['highlight'] = term.red_reverse
lightbar.move_down()
lneditor = get_lneditor(lightbar)
save_draft(save_key, get_lbcontent(lightbar))
# command mode, undo
elif not edit and inp in keyset['undo']:
for _ in count_repeat():
if len(UNDO):
set_lbcontent(lightbar, UNDO.pop())
dirty = True
else:
echo(u'\a')
break
# command mode, join line
elif not edit and inp in keyset['join']:
for _ in count_repeat():
if lightbar.index + 1 < len(lightbar.content):
idx = lightbar.index
lightbar.content[idx] = (idx,
WHITESPACE.join((
lightbar.content[idx][1].rstrip(),
lightbar.content[idx + 1][1].lstrip(),)))
del lightbar.content[idx + 1]
prior_length = len(lightbar.content)
set_lbcontent(lightbar, get_lbcontent(lightbar))
if len(lightbar.content) - prior_length > 0:
lightbar.move_down()
dirty = True
else:
echo(u'\a')
break
if dirty:
save_draft(save_key, get_lbcontent(lightbar))
# command mode, basic cmds & movement
elif not edit and inp is not None:
if inp in (u'a', u'A',):
if yes_no(lightbar, term.yellow(u'- ')
+ term.bold_red(u'AbORt')
+ term.yellow(u' -')):
return False
dirty = True
elif inp in (u's', u'S',):
if yes_no(lightbar, term.yellow(u'- ')
+ term.bold_green(u'SAVE')
+ term.yellow(u' -'), term.reverse_green):
save(save_key, get_lbcontent(lightbar))
return True
dirty = True
elif inp in (u'?',):
pager = Pager(lightbar.height, lightbar.width,
lightbar.yloc, lightbar.xloc)
pager.update(get_help())
pager.colors['border'] = term.bold_blue
echo(pager.border() + pager.title(u''.join((
term.bold_blue(u'-( '),
term.white_on_blue(u'r'), u':', term.bold(u'eturn'),
u' ',
term.bold_blue(u' )-'),))))
pager.keyset['exit'].extend([u'r', u'R'])
pager.read()
echo(pager.erase_border())
dirty = True
else:
moved = False
for _ in count_repeat():
echo(lightbar.process_keystroke(inp))
moved = lightbar.moved or moved
if moved:
echo(statusline(lightbar))
# edit mode; movement
elif edit and inp in movement:
dirty = merge()
if inp in (u'\r', term.KEY_ENTER,):
lightbar.content.insert(lightbar.index + 1,
[lightbar.selection[0] + 1, u''])
inp = term.KEY_DOWN
dirty = True
ucs = lightbar.process_keystroke(inp)
if lightbar.moved:
echo(term.normal + lneditor.erase_border())
echo(ucs)
lneditor = get_lneditor(lightbar)
save_draft(save_key, get_lbcontent(lightbar))
echo(lneditor.refresh())
else:
dirty = True
# edit mode -- append character / backspace
elif edit and inp is not None:
if (inp in keyset['rubout']
and len(lneditor.content) == 0
and lightbar.index > 0):
# erase past margin,
echo(term.normal + lneditor.erase_border())
del lightbar.content[lightbar.index]
lightbar.move_up()
set_lbcontent(lightbar, get_lbcontent(lightbar))
lneditor = get_lneditor(lightbar)
dirty = True
else:
# edit mode, add/delete ch
echo(lneditor.process_keystroke(inp))
if lneditor.moved:
echo(statusline(lightbar))
if inp is not None and type(inp) is not int and not inp.isdigit():
# commands were processed, reset num_repeat to 1
num_repeat = -1
def main(save_key=u'draft'):
""" Main procedure. """
# pylint: disable=R0914,R0912,R0915
# Too many local variables
# Too many branches
# Too many statements
from x84.bbs import getsession, getterminal, echo, getch, Ansi, Pager
session, term = getsession(), getterminal()
movement = (term.KEY_UP, term.KEY_DOWN, term.KEY_NPAGE, term.KEY_PPAGE,
term.KEY_HOME, term.KEY_END, u'\r', term.KEY_ENTER)
keyset = {
'edit': (term.KEY_ENTER, ),
'command': (unichr(27), term.KEY_ESCAPE),
'kill': (u'K', ),
'undo': (
u'u',
'U',
),
'goto': (u'G', ),
'insert': (u'I', ),
'insert-before': (u'O', ),
'insert-after': (u'o', ),
'join': (u'J', ),
'rubout': (
unichr(8),
unichr(127),
unichr(23),
term.KEY_BACKSPACE,
),
}
def merge():
"""
Merges line editor content as a replacement for the currently
selected lightbar row. Returns True if text inserted caused
additional rows to be appended, which is meaningful in a window
refresh context.
"""
lightbar.content[lightbar.index] = [
lightbar.selection[0],
softwrap_join(wrap_rstrip(lneditor.content)) + HARDWRAP
]
prior_length = len(lightbar.content)
prior_position = lightbar.position
set_lbcontent(lightbar, get_lbcontent(lightbar))
if len(lightbar.content) - prior_length == 0:
echo(lightbar.refresh_row(prior_position[0]))
return False
while len(lightbar.content) - prior_length > 0:
# hidden move-down for each appended line
lightbar.move_down()
prior_length += 1
return True
def statusline(lightbar):
"""
Display status line and command help on ``lightbar`` borders
"""
lightbar.colors['border'] = term.red if edit else term.yellow
keyset_cmd = u''
if not edit:
keyset_cmd = u''.join((
term.yellow(u'-( '),
term.yellow_underline(u'S'),
u':',
term.bold(u'ave'),
u' ',
term.yellow_underline(u'A'),
u':',
term.bold(u'bort'),
u' ',
term.yellow_underline(u'?'),
u':',
term.bold(u'help'),
term.yellow(u' )-'),
))
keyset_cmd = lightbar.pos(
lightbar.height - 1,
max(0, lightbar.width -
(len(Ansi(keyset_cmd)) + 3))) + keyset_cmd
return u''.join((
lightbar.border(),
keyset_cmd,
lightbar.pos(lightbar.height, lightbar.xpadding),
u''.join((
term.red(u'-[ '),
u'EditiNG liNE ',
term.reverse_red('%d' % (lightbar.index + 1, )),
term.red(u' ]-'),
)) if edit else u''.join((
term.yellow(u'-( '),
u'liNE ',
term.yellow('%d/%d ' % (
lightbar.index + 1,
len(lightbar.content),
)),
'%d%% ' % (int((float(lightbar.index + 1) /
max(1, len(lightbar.content))) * 100)),
term.yellow(u' )-'),
)),
lightbar.title(u''.join((
term.red('-] '),
term.bold(u'Escape'),
u':',
term.bold_red(u'command mode'),
term.red(' [-'),
)) if edit else u''.join((
term.yellow('-( '),
term.bold(u'Enter'),
u':',
term.bold_yellow(u'edit mode'),
term.yellow(' )-'),
))),
))
def redraw_lneditor(lightbar, lneditor):
"""
Return ucs suitable for refreshing line editor.
"""
return ''.join((term.normal, statusline(lightbar), lneditor.border(),
lneditor.refresh()))
def get_ui(ucs, lightbar=None):
"""
Returns Lightbar and ScrollingEditor instance.
"""
lbr = get_lightbar(ucs)
lbr.position = (lightbar.position if lightbar is not None else (0, 0))
lne = get_lneditor(lbr)
return lbr, lne
def banner():
"""
Returns string suitable clearing screen
"""
return u''.join((term.move(0, 0), term.normal, term.clear))
def redraw(lightbar, lneditor):
"""
Returns ucs suitable for redrawing Lightbar
and ScrollingEditor UI elements.
"""
return u''.join((
term.normal,
redraw_lightbar(lightbar),
redraw_lneditor(lightbar, lneditor) if edit else u'',
))
def redraw_lightbar(lightbar):
""" Returns ucs suitable for redrawing Lightbar. """
return u''.join((
statusline(lightbar),
lightbar.refresh(),
))
def resize(lightbar):
""" Resize Lightbar. """
if edit:
# always re-merge current line on resize,
merge()
lbr, lne = get_ui(get_lbcontent(lightbar), lightbar)
echo(redraw(lbr, lne))
return lbr, lne
ucs = session.user.get(save_key, u'')
lightbar, lneditor = get_ui(ucs, None)
echo(banner())
dirty = True
edit = False
digbuf, num_repeat = u'', -1
count_repeat = lambda: range(num_repeat if num_repeat != -1 else 1)
while True:
# poll for refresh
if session.poll_event('refresh'):
echo(banner())
lightbar, lneditor = resize(lightbar)
dirty = True
if dirty:
session.activity = 'editing %s' % (save_key, )
echo(redraw(lightbar, lneditor))
dirty = False
# poll for input
inp = getch(1)
# buffer keystrokes for repeat
if (not edit and inp is not None and type(inp) is not int
and inp.isdigit()):
digbuf += inp
if len(digbuf) > 10:
# overflow,
echo(u'\a')
digbuf = inp
try:
num_repeat = int(digbuf)
except ValueError:
try:
num_repeat = int(inp)
except ValueError:
pass
continue
else:
digbuf = u''
# toggle edit mode,
if inp in keyset['command'] or not edit and inp in keyset['edit']:
edit = not edit # toggle
if not edit:
# switched to command mode, merge our lines
echo(term.normal + lneditor.erase_border())
merge()
lightbar.colors['highlight'] = term.yellow_reverse
else:
# switched to edit mode, save draft,
# instantiate new line editor
save_draft(save_key, get_lbcontent(lightbar))
lneditor = get_lneditor(lightbar)
lightbar.colors['highlight'] = term.red_reverse
dirty = True
# command mode, kill line
elif not edit and inp in keyset['kill']:
# when 'killing' a line, make accomidations to clear
# bottom-most row, otherwise a ghosting effect occurs
for _count in count_repeat():
del lightbar.content[lightbar.index]
set_lbcontent(lightbar, get_lbcontent(lightbar))
if lightbar.visible_bottom > len(lightbar.content):
echo(lightbar.refresh_row(lightbar.visible_bottom + 1))
else:
dirty = True
save_draft(save_key, get_lbcontent(lightbar))
# command mode, insert line
elif not edit and inp in keyset['insert']:
for _count in count_repeat():
lightbar.content.insert(lightbar.index, (
lightbar.index,
HARDWRAP,
))
set_lbcontent(lightbar, get_lbcontent(lightbar))
save_draft(save_key, get_lbcontent(lightbar))
dirty = True
# command mode; goto line
elif not edit and inp in keyset['goto']:
if num_repeat == -1:
# 'G' alone goes to end of file,
num_repeat = len(lightbar.content)
echo(lightbar.goto((num_repeat or 1) - 1))
echo(statusline(lightbar))
# command mode; insert-before (switch to edit mode)
elif not edit and inp in keyset['insert-before']:
lightbar.content.insert(lightbar.index, (
lightbar.index,
HARDWRAP,
))
set_lbcontent(lightbar, get_lbcontent(lightbar))
edit = dirty = True
# switched to edit mode, save draft,
# instantiate new line editor
lightbar.colors['highlight'] = term.red_reverse
lneditor = get_lneditor(lightbar)
save_draft(save_key, get_lbcontent(lightbar))
# command mode; insert-after (switch to edit mode)
elif not edit and inp in keyset['insert-after']:
lightbar.content.insert(lightbar.index + 1, (
lightbar.index + 1,
HARDWRAP,
))
set_lbcontent(lightbar, get_lbcontent(lightbar))
edit = dirty = True
# switched to edit mode, save draft,
# instantiate new line editor
lightbar.colors['highlight'] = term.red_reverse
lightbar.move_down()
lneditor = get_lneditor(lightbar)
save_draft(save_key, get_lbcontent(lightbar))
# command mode, undo
elif not edit and inp in keyset['undo']:
for _count in count_repeat():
if len(UNDO):
set_lbcontent(lightbar, UNDO.pop())
dirty = True
else:
echo(u'\a')
break
# command mode, join line
elif not edit and inp in keyset['join']:
for _count in count_repeat():
if lightbar.index + 1 < len(lightbar.content):
idx = lightbar.index
lightbar.content[idx] = (
idx,
WHITESPACE.join((
lightbar.content[idx][1].rstrip(),
lightbar.content[idx + 1][1].lstrip(),
)))
del lightbar.content[idx + 1]
prior_length = len(lightbar.content)
set_lbcontent(lightbar, get_lbcontent(lightbar))
if len(lightbar.content) - prior_length > 0:
lightbar.move_down()
dirty = True
else:
echo(u'\a')
break
if dirty:
save_draft(save_key, get_lbcontent(lightbar))
# command mode, basic cmds & movement
elif not edit and inp is not None:
if inp in (
u'a',
u'A',
):
if yes_no(
lightbar,
term.yellow(u'- ') + term.bold_red(u'AbORt') +
term.yellow(u' -')):
return False
dirty = True
elif inp in (
u's',
u'S',
):
if yes_no(
lightbar,
term.yellow(u'- ') + term.bold_green(u'SAVE') +
term.yellow(u' -'), term.reverse_green):
save(save_key, get_lbcontent(lightbar))
return True
dirty = True
elif inp in (u'?', ):
pager = Pager(lightbar.height, lightbar.width, lightbar.yloc,
lightbar.xloc)
pager.update(get_help())
pager.colors['border'] = term.bold_blue
echo(pager.border() + pager.title(u''.join((
term.bold_blue(u'-( '),
term.white_on_blue(u'r'),
u':',
term.bold(u'eturn'),
u' ',
term.bold_blue(u' )-'),
))))
pager.keyset['exit'].extend([u'r', u'R'])
pager.read()
echo(pager.erase_border())
dirty = True
else:
moved = False
for _count in count_repeat():
echo(lightbar.process_keystroke(inp))
moved = lightbar.moved or moved
if moved:
echo(statusline(lightbar))
# edit mode; movement
elif edit and inp in movement:
dirty = merge()
if inp in (
u'\r',
term.KEY_ENTER,
):
lightbar.content.insert(lightbar.index + 1,
[lightbar.selection[0] + 1, u''])
inp = term.KEY_DOWN
dirty = True
ucs = lightbar.process_keystroke(inp)
if lightbar.moved:
echo(term.normal + lneditor.erase_border())
echo(ucs)
lneditor = get_lneditor(lightbar)
save_draft(save_key, get_lbcontent(lightbar))
echo(lneditor.refresh())
else:
dirty = True
# edit mode -- append character / backspace
elif edit and inp is not None:
if (inp in keyset['rubout'] and len(lneditor.content) == 0
and lightbar.index > 0):
# erase past margin,
echo(term.normal + lneditor.erase_border())
del lightbar.content[lightbar.index]
lightbar.move_up()
set_lbcontent(lightbar, get_lbcontent(lightbar))
lneditor = get_lneditor(lightbar)
dirty = True
else:
# edit mode, add/delete ch
echo(lneditor.process_keystroke(inp))
if lneditor.moved:
echo(statusline(lightbar))
if inp is not None and type(inp) is not int and not inp.isdigit():
# commands were processed, reset num_repeat to 1
num_repeat = -1