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#! /usr/bin/python
# Test program for client APIs.
import os
import sys
import glib
import termios
import tty
import locale
import curses
import ibus
from ibus import keysyms
from ibus import modifier
class DemoTerm:
def __init__(self):
self.__init_curses()
self.__bus = ibus.Bus()
self.__ic = self.__bus.create_input_context("DemoTerm")
self.__bus.set_capabilities(self.__ic, 7)
self.__bus.connect("commit-string", self.__commit_string_cb)
self.__bus.connect("update-preedit", self.__update_preedit_cb)
self.__bus.connect("show-preedit", self.__show_preedit_cb)
self.__bus.connect("hide-preedit", self.__hide_preedit_cb)
self.__bus.connect("update-aux-string", self.__update_aux_string_cb)
self.__bus.connect("show-aux-string", self.__show_aux_string_cb)
self.__bus.connect("hide-aux-string", self.__hide_aux_string_cb)
self.__bus.connect("update-lookup-table", self.__update_lookup_table_cb)
self.__bus.connect("show-lookup-table", self.__show_lookup_table_cb)
self.__bus.connect("hide-lookup-table", self.__hide_lookup_table_cb)
glib.io_add_watch(0, glib.IO_IN, self.__stdin_cb)
# glib.timeout_add(500, self.__timeout_cb)
# self.__master_fd, self.__slave_fd = os.openpty()
# self.__run_shell()
self.__is_invalidate = False
self.__preedit = ""
self.__preedit_visible = False
self.__aux_string = ""
self.__aux_string_visible = False
self.__lookup_table = None
self.__lookup_table_visible = False
# self.__old_sigwinch_cb = signal.signal(signal.SIGWINCH, self.__sigwinch_cb)
def __timeout_cb(self):
self.__stdin_cb(0, 0)
return True
def __sigwinch_cb(self, a, b):
self.__old_sigwinch_cb(a, b)
self.__invalidate()
def __init_curses(self):
self.__screen = curses.initscr()
curses.noecho()
curses.raw()
self.__screen.keypad(1)
self.__screen.refresh()
self.__screen.nodelay(1)
self.__max_y, self.__max_x = self.__screen.getmaxyx()
self.__state_pad = curses.newpad(2, self.__max_x)
self.__state_pad.bkgd(' ', curses.A_REVERSE)
self.__state_pad.addstr(0, 0, "Press Ctrl + v to enable or disable input method")
self.__state_pad.refresh(0, 0, self.__max_y - 2, 0, self.__max_y, self.__max_x)
def __fini_curses(self):
curses.noraw()
curses.echo()
curses.endwin()
def __stdin_cb(self, fd, condition):
while self.__process_input():
pass
return True
def __process_input(self):
c = self.__screen.getch()
if c < 0:
return False
if c == 3:
self.__loop.quit()
try:
if c == 22: # Ctrl + V => Ctrl + space
retval = self.__bus.process_key_event(self.__ic,
keysyms.space, True, modifier.CONTROL_MASK)
elif c == curses.KEY_BACKSPACE: # BackSpace
self.__bus.process_key_event(self.__ic,
keysyms.BackSpace, True, 0)
retval = True
elif c == curses.KEY_RESIZE:
self.__invalidate()
retval = True
else:
retval = self.__bus.process_key_event(self.__ic, c, True, 0)
except:
import backtrace
backtrace.print_exc()
retval = False
if retval == False:
self.__screen.addstr(unichr(c).encode("utf-8"))
self.__screen.refresh()
return True
def __commit_string_cb(self, bus, ic, text):
self.__screen.addstr(text)
self.__screen.refresh()
def __update_preedit_cb(self, bus, ic, text, attrs, cursor_pos, visible):
self.__preedit = text
self.__preedit_visible = visible
self.__invalidate()
def __show_preedit_cb(self, bus, ic):
if self.__preedit_visible:
return
self.__preedit_visible = True
self.__invalidate()
def __hide_preedit_cb(self, bus, ic):
if not self.__preedit_visible:
return
self.__preedit_visible = False
self.__invalidate()
def __update_aux_string_cb(self, bus, ic, text, attrs, visible):
self.__aux_string = text
self.__aux_string_visible = visible
self.__invalidate()
def __show_aux_string_cb(self, bus, ic):
if self.__aux_string_visible:
return
self.__aux_string_visible = True
self.__invalidate()
def __hide_aux_string_cb(self, bus, ic):
if not self.__aux_string_visible:
return
self.__aux_string_visible = False
self.__invalidate()
def __update_lookup_table_cb(self, bus, ic, lookup_table, visible):
self.__lookup_table = lookup_table
self.__lookup_table_visible = visible
self.__invalidate()
def __show_lookup_table_cb(self, bus, ic):
if self.__lookup_table_visible:
return
self.__lookup_table_visible = True
self.__invalidate()
def __hide_lookup_table_cb(self, bus, ic):
if not self.__lookup_table_visible:
return
self.__lookup_table_visible = False
self.__invalidate()
def __invalidate(self):
if self.__is_invalidate:
return
self.__is_invalidate = True
glib.idle_add(self.__update)
def __update(self):
if not self.__is_invalidate:
return False
self.__is_invalidate = False
y, x = self.__screen.getmaxyx()
if self.__max_x != x or self.__max_y != y:
self.__max_x = x
self.__max_y = y
self.__state_pad = curses.newpad(2, self.__max_x)
self.__state_pad.bkgd(' ', curses.A_REVERSE)
self.__state_pad.addstr(0, 0, "Press Ctrl + v to enable or disable input method")
self.__screen.clear()
self.__state_pad.clear()
# update preedit
if self.__preedit_visible:
self.__state_pad.addstr(0,0, self.__preedit, curses.A_REVERSE)
# update aux string
if self.__aux_string_visible:
self.__state_pad.addstr(" ", curses.A_REVERSE)
self.__state_pad.addstr(self.__aux_string, curses.A_REVERSE)
self.__state_pad.addstr(1, 0, "", curses.A_REVERSE)
# update lookup table
if self.__lookup_table_visible:
candidates = self.__lookup_table.get_canidates_in_current_page()
i = 1
for c in candidates:
text = u"%d.%s " % (i, c[0])
self.__state_pad.addstr(text.encode("utf-8"), curses.A_REVERSE)
i += 1
if self.__preedit_visible == False and self.__aux_string_visible == False and self.__lookup_table_visible == False:
self.__state_pad.addstr(0, 0, "Press Ctrl + v to enable or disable input method")
self.__state_pad.refresh(0, 0, self.__max_y - 2, 0, self.__max_y, self.__max_x)
self.__screen.refresh()
return False
def __run_shell(self):
pid = os.fork()
if pid == 0: # child
os.close(0)
os.close(1)
os.close(2)
os.close(self.__master_fd)
os.dup2(self.__slave_fd, 0)
os.dup2(self.__slave_fd, 1)
os.dup2(self.__slave_fd, 2)
os.close(self.__slave_fd)
os.execv('/bin/bash', ["bash"])
os.exit(1)
def run(self):
self.__loop = glib.MainLoop()
self.__loop.run()
def close(self):
self.__fini_curses()
pass
def main():
locale.setlocale(locale.LC_ALL, "")
old = termios.tcgetattr(0)
term = DemoTerm()
try:
term.run()
except:
term.close()
termios.tcsetattr(0, termios.TCSAFLUSH, old)
import traceback
traceback.print_exc()
finally:
term.close()
termios.tcsetattr(0, termios.TCSAFLUSH, old)
if __name__ == "__main__":
main()
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