windows.py 47.8 KB
Newer Older
1
# Copyright 2010 Le Coz Florent <louiz@louiz.org>
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
#
# This file is part of Poezio.
#
# Poezio 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, version 3 of the License.
#
# Poezio 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 Poezio.  If not, see <http://www.gnu.org/licenses/>.

17
"""
18 19 20 21
Define all the windows.
A window is a little part of the screen, for example the input window,
the text window, the roster window, etc.
A Tab (see tab.py) is composed of multiple Windows
22 23
"""

24 25
from gettext import (bindtextdomain, textdomain, bind_textdomain_codeset,
                     gettext as _)
26
from os.path import isfile
27

28 29 30
import logging
log = logging.getLogger(__name__)

31 32 33
import locale
locale.setlocale(locale.LC_ALL, '')

34
import shlex
35
import curses
36
from config import config
37

38 39
from threading import Lock

40
from contact import Contact, Resource
41
from roster import RosterGroup, roster
42

43
from message import Line
44
from tabs import MIN_WIDTH, MIN_HEIGHT
45

46 47
from sleekxmpp.xmlstream.stanzabase import JID

48
import theme
49

50 51
g_lock = Lock()

52 53
LINES_NB_LIMIT = 16384

54
class Win(object):
55 56
    def __init__(self):
        pass
57

58
    def _resize(self, height, width, y, x, parent_win):
59
        self.height, self.width, self.x, self.y = height, width, x, y
60 61 62 63
        self._win = curses.newwin(height, width, y, x)

    def _refresh(self):
        self._win.noutrefresh()
64

65 66
    def addnstr(self, *args):
        """
67
        Safe call to addnstr
68 69
        """
        try:
70
            self._win.addnstr(*args)
71 72 73 74 75
        except:
            pass

    def addstr(self, *args):
        """
76
        Safe call to addstr
77
        """
78
        try:
79
            self._win.addstr(*args)
80 81
        except:
            pass
82

83 84 85 86
    def finish_line(self, color):
        """
        Write colored spaces until the end of line
        """
87
        (y, x) = self._win.getyx()
88 89 90
        size = self.width-x
        self.addnstr(' '*size, size, curses.color_pair(color))

91
class UserList(Win):
92 93
    def __init__(self):
        Win.__init__(self)
94 95 96
        self.color_role = {'moderator': theme.COLOR_USER_MODERATOR,
                           'participant':theme.COLOR_USER_PARTICIPANT,
                           'visitor':theme.COLOR_USER_VISITOR,
97 98
                           'none':theme.COLOR_USER_NONE,
                           '':theme.COLOR_USER_NONE
99
                           }
100
        self.color_show = {'xa':theme.COLOR_STATUS_XA,
101 102
                           'none':theme.COLOR_STATUS_NONE,
                           '':theme.COLOR_STATUS_NONE,
103 104 105
                           'dnd':theme.COLOR_STATUS_DND,
                           'away':theme.COLOR_STATUS_AWAY,
                           'chat':theme.COLOR_STATUS_CHAT
106
                           }
107 108

    def refresh(self, users):
109
        with g_lock:
110
            self._win.erase()
111 112 113 114 115 116 117 118 119 120 121
            y = 0
            for user in sorted(users):
                if not user.role in self.color_role:
                    role_col = theme.COLOR_USER_NONE
                else:
                    role_col = self.color_role[user.role]
                if not user.show in self.color_show:
                    show_col = theme.COLOR_STATUS_NONE
                else:
                    show_col = self.color_show[user.show]
                self.addstr(y, 0, theme.CHAR_STATUS, curses.color_pair(show_col))
122
                self.addnstr(y, 1, user.nick, self.width-1, curses.color_pair(role_col))
123 124 125
                y += 1
                if y == self.height:
                    break
126
            self._refresh()
127

128 129
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
130 131 132
        self._win.attron(curses.color_pair(theme.COLOR_VERTICAL_SEPARATOR))
        self._win.vline(0, 0, curses.ACS_VLINE, self.height)
        self._win.attroff(curses.color_pair(theme.COLOR_VERTICAL_SEPARATOR))
133

134
class Topic(Win):
135 136
    def __init__(self):
        Win.__init__(self)
137

138 139
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
140

141
    def refresh(self, topic):
142
        with g_lock:
143
            self._win.erase()
144
            self.addstr(0, 0, topic[:self.width-1], curses.color_pair(theme.COLOR_TOPIC_BAR))
145
            (y, x) = self._win.getyx()
146 147 148 149
            remaining_size = self.width - x
            if remaining_size:
                self.addnstr(' '*remaining_size, remaining_size,
                             curses.color_pair(theme.COLOR_INFORMATION_BAR))
150
            self._refresh()
151

152
class GlobalInfoBar(Win):
153 154
    def __init__(self):
        Win.__init__(self)
155

156 157
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
158

159
    def refresh(self, tabs, current):
160 161 162 163
        def compare_room(a):
            # return a.nb - b.nb
            return a.nb
        comp = lambda x: x.nb
164
        with g_lock:
165
            self._win.erase()
166
            self.addstr(0, 0, "[", curses.color_pair(theme.COLOR_INFORMATION_BAR))
167 168 169 170 171 172 173 174
            sorted_tabs = sorted(tabs, key=comp)
            for tab in sorted_tabs:
                color = tab.get_color_state()
                try:
                    self.addstr("%s" % str(tab.nb), curses.color_pair(color))
                    self.addstr("|", curses.color_pair(theme.COLOR_INFORMATION_BAR))
                except:             # end of line
                    break
175
            (y, x) = self._win.getyx()
176
            self.addstr(y, x-1, '] ', curses.color_pair(theme.COLOR_INFORMATION_BAR))
177
            (y, x) = self._win.getyx()
178 179 180
            remaining_size = self.width - x
            self.addnstr(' '*remaining_size, remaining_size,
                         curses.color_pair(theme.COLOR_INFORMATION_BAR))
181
            self._refresh()
182

183 184 185 186 187
class InfoWin(Win):
    """
    Base class for all the *InfoWin, used in various tabs. For example
    MucInfoWin, etc. Provides some useful methods.
    """
188 189
    def __init__(self):
        Win.__init__(self)
190

191
    def print_scroll_position(self, window):
192 193 194 195 196
        """
        Print, link in Weechat, a -PLUS(n)- where n
        is the number of available lines to scroll
        down
        """
197 198
        if window.pos > 0:
            plus = ' -PLUS(%s)-' % window.pos
199
            self.addstr(plus, curses.color_pair(theme.COLOR_SCROLLABLE_NUMBER) | curses.A_BOLD)
200 201 202 203 204 205

class PrivateInfoWin(InfoWin):
    """
    The live above the information window, displaying informations
    about the MUC user we are talking to
    """
206 207
    def __init__(self):
        InfoWin.__init__(self)
208

209 210
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
211 212

    def refresh(self, room):
213

214
        with g_lock:
215
            self._win.erase()
216 217 218
            self.write_room_name(room)
            self.print_scroll_position(room)
            self.finish_line(theme.COLOR_INFORMATION_BAR)
219
            self._refresh()
220 221

    def write_room_name(self, room):
222 223
        jid = JID(room.name)
        room_name, nick = jid.bare, jid.resource
224
        self.addstr(nick, curses.color_pair(13))
225
        txt = ' from room %s' % room_name
226
        self.addstr(txt, curses.color_pair(theme.COLOR_INFORMATION_BAR))
227

228 229 230
class ConversationInfoWin(InfoWin):
    """
    The line above the information window, displaying informations
231
    about the user we are talking to
232
    """
233 234 235 236 237 238 239 240 241 242
    color_show = {'xa':theme.COLOR_STATUS_XA,
                  'none':theme.COLOR_STATUS_ONLINE,
                  '':theme.COLOR_STATUS_ONLINE,
                  'available':theme.COLOR_STATUS_ONLINE,
                  'dnd':theme.COLOR_STATUS_DND,
                  'away':theme.COLOR_STATUS_AWAY,
                  'chat':theme.COLOR_STATUS_CHAT,
                  'unavailable':theme.COLOR_STATUS_UNAVAILABLE
                  }

243 244
    def __init__(self):
        InfoWin.__init__(self)
245

246 247
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
248

249
    def refresh(self, jid, contact, text_buffer):
250 251 252
        # contact can be None, if we receive a message
        # from someone not in our roster. In this case, we display
        # only the maximum information from the message we can get.
253 254 255 256 257 258 259 260 261 262 263 264 265
        jid = JID(jid)
        if contact:
            if jid.resource:
                resource = contact.get_resource_by_fulljid(jid.full)
            else:
                resource = contact.get_highest_priority_resource()
        else:
            resource = None
        # if contact is None, then resource is None too: user is not in the roster
        # so we don't know almost anything about it
        # If contact is a Contact, then
        # resource can now be a Resource: user is in the roster and online
        # or resource is None: user is in the roster but offline
266
        with g_lock:
267
            self._win.erase()
268 269 270 271 272
            self.write_contact_jid(jid)
            self.write_contact_informations(contact)
            self.write_resource_information(resource)
            self.print_scroll_position(text_buffer)
            self.finish_line(theme.COLOR_INFORMATION_BAR)
273
            self._refresh()
274

275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291
    def write_resource_information(self, resource):
        """
        Write the informations about the resource
        """
        if not resource:
            presence = "unavailable"
        else:
            presence = resource.get_presence()
        color = RosterWin.color_show[presence]
        self.addstr('[', curses.color_pair(theme.COLOR_INFORMATION_BAR))
        self.addstr(" ", curses.color_pair(color))
        self.addstr(']', curses.color_pair(theme.COLOR_INFORMATION_BAR))

    def write_contact_informations(self, contact):
        """
        Write the informations about the contact
        """
292
        if not contact:
293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309
            self.addstr("(contact not in roster)", curses.color_pair(theme.COLOR_INFORMATION_BAR))
            return
        display_name = contact.get_name() or contact.get_bare_jid()
        self.addstr('%s '%(display_name), curses.color_pair(theme.COLOR_INFORMATION_BAR))

    def write_contact_jid(self, jid):
        """
        Just write the jid that we are talking to
        """
        self.addstr('[', curses.color_pair(theme.COLOR_INFORMATION_BAR))
        self.addstr(jid.full, curses.color_pair(10))
        self.addstr('] ', curses.color_pair(theme.COLOR_INFORMATION_BAR))

class ConversationStatusMessageWin(InfoWin):
    """
    The upper bar displaying the status message of the contact
    """
310 311
    def __init__(self):
        InfoWin.__init__(self)
312

313 314
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
315 316 317 318 319 320 321 322

    def refresh(self, jid, contact):
        jid = JID(jid)
        if contact:
            if jid.resource:
                resource = contact.get_resource_by_fulljid(jid.full)
            else:
                resource = contact.get_highest_priority_resource()
323
        else:
324 325 326 327 328 329 330 331 332 333
            resource = None
        with g_lock:
            self._win.erase()
            if resource:
                self.write_status_message(resource)
            self.finish_line(theme.COLOR_INFORMATION_BAR)
            self._refresh()

    def write_status_message(self, resource):
        self.addstr(resource.get_status(), curses.color_pair(theme.COLOR_INFORMATION_BAR))
334

335 336 337 338 339
class MucInfoWin(InfoWin):
    """
    The line just above the information window, displaying informations
    about the MUC we are viewing
    """
340 341
    def __init__(self):
        InfoWin.__init__(self)
342

343 344
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
345

346
    def refresh(self, room, window=None):
347
        with g_lock:
348
            self._win.erase()
349 350 351 352
            self.write_room_name(room)
            self.write_own_nick(room)
            self.write_disconnected(room)
            self.write_role(room)
353 354
            if window:
                self.print_scroll_position(window)
355
            self.finish_line(theme.COLOR_INFORMATION_BAR)
356
            self._refresh()
357 358 359 360

    def write_room_name(self, room):
        """
        """
361
        self.addstr('[', curses.color_pair(theme.COLOR_INFORMATION_BAR))
362
        self.addnstr(room.name, len(room.name), curses.color_pair(13))
363
        self.addstr('] ', curses.color_pair(theme.COLOR_INFORMATION_BAR))
364 365 366 367 368 369

    def write_disconnected(self, room):
        """
        Shows a message if the room is not joined
        """
        if not room.joined:
370 371
            self.addstr(' -!- Not connected ', curses.color_pair(theme.COLOR_INFORMATION_BAR))

372 373 374 375 376 377 378 379 380
    def write_own_nick(self, room):
        """
        Write our own nick in the info bar
        """
        nick = room.own_nick
        if not nick:
            return
        if len(nick) > 13:
            nick = nick[:13]+'…'
381
        self.addstr(nick, curses.color_pair(theme.COLOR_INFORMATION_BAR))
382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397

    def write_role(self, room):
        """
        Write our own role and affiliation
        """
        own_user = None
        for user in room.users:
            if user.nick == room.own_nick:
                own_user = user
                break
        if not own_user:
            return
        txt = ' ('
        if own_user.affiliation != 'none':
            txt += own_user.affiliation+', '
        txt += own_user.role+')'
398
        self.addstr(txt, curses.color_pair(theme.COLOR_INFORMATION_BAR))
399

400
class TextWin(Win):
401 402
    def __init__(self):
        Win.__init__(self)
403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429
        self.pos = 0
        self.built_lines = []   # Each new message is built and kept here.
        # on resize, we rebuild all the messages

    def scroll_up(self, dist=14):
        # The pos can grow a lot over the top of the number of
        # available lines, it will be fixed on the next refresh of the
        # screen anyway
        self.pos += dist

    def scroll_down(self, dist=14):
        self.pos -= dist
        if self.pos <= 0:
            self.pos = 0

    def build_new_message(self, message):
        """
        Take one message, build it and add it to the list
        Return the number of lines that are built for the given
        message.
        """
        if message == None:  # line separator
            self.built_lines.append(None)
            return 0
        txt = message.txt
        if not txt:
            return 0
430
            # length of the time
431 432 433 434 435 436 437 438 439 440 441 442 443
        offset = 9+len(theme.CHAR_TIME_LEFT[:1])+len(theme.CHAR_TIME_RIGHT[:1])
        if message.nickname and len(message.nickname) >= 30:
            nick = message.nickname[:30]+'…'
        else:
            nick = message.nickname
        if nick:
            offset += len(nick) + 2 # + nick + spaces length
        first = True
        this_line_was_broken_by_space = False
        nb = 0
        while txt != '':
            if txt[:self.width-offset].find('\n') != -1:
                limit = txt[:self.width-offset].find('\n')
444
            else:
445 446 447 448 449 450
                # break between words if possible
                if len(txt) >= self.width-offset:
                    limit = txt[:self.width-offset].rfind(' ')
                    this_line_was_broken_by_space = True
                    if limit <= 0:
                        limit = self.width-offset
451 452
                        this_line_was_broken_by_space = False
                else:
453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477
                    limit = self.width-offset-1
                    this_line_was_broken_by_space = False
            color = message.user.color if message.user else None
            if not first:
                nick = None
                time = None
            else:
                time = message.time
            l = Line(nick, color,
                     time,
                     txt[:limit], message.color,
                     offset,
                     message.colorized)
            self.built_lines.append(l)
            nb += 1
            if this_line_was_broken_by_space:
                txt = txt[limit+1:] # jump the space at the start of the line
            else:
                txt = txt[limit:]
            if txt.startswith('\n'):
                txt = txt[1:]
            first = False
        while len(self.built_lines) > LINES_NB_LIMIT:
            self.built_lines.pop(0)
        return nb
478

479
    def refresh(self, room):
480
        """
481 482
        Build the Line objects from the messages, and then write
        them in the text area
483
        """
484 485
        if self.height <= 0:
            return
486
        with g_lock:
487
            self._win.erase()
488 489 490 491 492 493 494 495
            # lines = self.build_lines_from_messages(room.messages)
            lines = self.built_lines
            if self.pos + self.height > len(lines):
                self.pos = len(lines) - self.height
                if self.pos < 0:
                    self.pos = 0
            if self.pos != 0:
                lines = lines[-self.height-self.pos:-self.pos]
496 497 498 499
            else:
                lines = lines[-self.height:]
            y = 0
            for line in lines:
500
                self._win.move(y, 0)
501 502 503 504 505 506 507 508 509
                if line == None:
                    self.write_line_separator()
                    y += 1
                    continue
                if line.time is not None:
                    self.write_time(line.time)
                if line.nickname is not None:
                    self.write_nickname(line.nickname, line.nickname_color)
                self.write_text(y, line.text_offset, line.text, line.text_color, line.colorized)
510
                y += 1
511
            self._refresh()
512

513 514 515
    def write_line_separator(self):
        """
        """
516
        self._win.attron(curses.color_pair(theme.COLOR_NEW_TEXT_SEPARATOR))
517
        self.addnstr('- '*(self.width//2), self.width)
518
        self._win.attroff(curses.color_pair(theme.COLOR_NEW_TEXT_SEPARATOR))
519

520
    def write_text(self, y, x, txt, color, colorized):
521
        """
522
        write the text of a line.
523
        """
524
        txt = txt
525 526
        if not colorized:
            if color:
527
                self._win.attron(curses.color_pair(color))
528
            self.addstr(y, x, txt)
529
            if color:
530
                self._win.attroff(curses.color_pair(color))
531 532 533 534 535 536 537

        else:                   # Special messages like join or quit
            special_words = {
                theme.CHAR_JOIN: theme.COLOR_JOIN_CHAR,
                theme.CHAR_QUIT: theme.COLOR_QUIT_CHAR,
                theme.CHAR_KICK: theme.COLOR_KICK_CHAR,
                }
538 539 540
            try:
                splitted = shlex.split(txt)
            except ValueError:
541 542 543 544 545
                # FIXME colors are disabled on too long words
                txt = txt.replace('"[', '').replace(']"', '')\
                    .replace('"{', '').replace('}"', '')\
                    .replace('"(', '').replace(')"', '')
                splitted = txt.split()
546
            for word in splitted:
547
                if word in list(special_words.keys()):
548
                    self.addstr(word, curses.color_pair(special_words[word]))
549
                elif word.startswith('(') and word.endswith(')'):
550 551 552
                    self.addstr('(', curses.color_pair(color))
                    self.addstr(word[1:-1], curses.color_pair(theme.COLOR_CURLYBRACKETED_WORD))
                    self.addstr(')', curses.color_pair(color))
553
                elif word.startswith('{') and word.endswith('}'):
554
                    self.addstr(word[1:-1], curses.color_pair(theme.COLOR_ACCOLADE_WORD))
555
                elif word.startswith('[') and word.endswith(']'):
556
                    self.addstr(word[1:-1], curses.color_pair(theme.COLOR_BRACKETED_WORD))
557
                else:
558
                    self.addstr(word, curses.color_pair(color))
559
                self._win.addch(' ')
560

561
    def write_nickname(self, nickname, color):
562 563 564 565
        """
        Write the nickname, using the user's color
        and return the number of written characters
        """
566
        if color:
567
            self._win.attron(curses.color_pair(color))
568
        self.addstr(nickname)
569
        if color:
570
            self._win.attroff(curses.color_pair(color))
571
        self.addstr("> ")
572

573
    def write_time(self, time):
574 575 576
        """
        Write the date on the yth line of the window
        """
577 578 579 580 581 582 583
        self.addstr(theme.CHAR_TIME_LEFT, curses.color_pair(theme.COLOR_TIME_LIMITER))
        self.addstr(time.strftime("%H"), curses.color_pair(theme.COLOR_TIME_NUMBERS))
        self.addstr(':', curses.color_pair(theme.COLOR_TIME_SEPARATOR))
        self.addstr(time.strftime("%M"), curses.color_pair(theme.COLOR_TIME_NUMBERS))
        self.addstr(':', curses.color_pair(theme.COLOR_TIME_SEPARATOR))
        self.addstr(time.strftime('%S'), curses.color_pair(theme.COLOR_TIME_NUMBERS))
        self.addnstr(theme.CHAR_TIME_RIGHT, curses.color_pair(theme.COLOR_TIME_LIMITER))
584
        self.addstr(' ')
585

586
    def resize(self, height, width, y, x, stdscr, room=None):
587
        self._resize(height, width, y, x, stdscr)
588 589 590 591 592 593 594
        if room:
            self.rebuild_everything(room)

    def rebuild_everything(self, room):
        self.built_lines = []
        for message in room.messages:
            self.build_new_message(message)
595

596 597
class HelpText(Win):
    """
598
    A Window just displaying a read-only message.
599 600 601
    Usually used to replace an Input when the tab is in
    command mode.
    """
602 603
    def __init__(self, text=''):
        Win.__init__(self)
604 605
        self.txt = text

606 607
    def resize(self, height, width, y, x, stdscr):
        self._resize(height, width, y, x, stdscr)
608 609 610 611 612 613 614 615 616 617 618

    def refresh(self):
        with g_lock:
            self._win.erase()
            self.addstr(0, 0, self.txt[:self.width-1], curses.color_pair(theme.COLOR_INFORMATION_BAR))
            self.finish_line(theme.COLOR_INFORMATION_BAR)
            self._refresh()

    def do_command(self, key):
        return False

619 620
class Input(Win):
    """
621 622 623 624 625 626 627 628 629
    The simplest Input possible, provides just a way to edit a single line
    of text. It also has a clipboard, common to all Inputs.
    Doesn't have any history.
    It doesn't do anything when enter is pressed either.
    This should be herited for all kinds of Inputs, for example MessageInput
    or the little inputs in dataforms, etc, adding specific features (completion etc)
    It features two kinds of completion, but they have to be called from outside (the Tab),
    passing the list of items that can be used to complete. The completion can be used
    in a very flexible way.
630
    """
631 632
    clipboard = '' # A common clipboard for all the inputs, this makes
    # it easy cut and paste text between various input
633
    def __init__(self):
634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654
        self.key_func = {
            "KEY_LEFT": self.key_left,
            "M-D": self.key_left,
            "KEY_RIGHT": self.key_right,
            "M-C": self.key_right,
            "KEY_END": self.key_end,
            "KEY_HOME": self.key_home,
            "KEY_DC": self.key_dc,
            '^D': self.key_dc,
            'M-b': self.jump_word_left,
            '^W': self.delete_word,
            '^K': self.delete_end_of_line,
            '^U': self.delete_begining_of_line,
            '^Y': self.paste_clipboard,
            '^A': self.key_home,
            '^E': self.key_end,
            'M-f': self.jump_word_right,
            "KEY_BACKSPACE": self.key_backspace,
            '^?': self.key_backspace,
            }

655
        Win.__init__(self)
656
        self.text = ''
657 658
        self.pos = 0            # cursor position
        self.line_pos = 0 # position (in self.text) of
659

660 661 662
    def is_empty(self):
        return len(self.text) == 0

663 664 665
    def resize(self, height, width, y, x, stdscr):

        self._resize(height, width, y, x, stdscr)
666
        self._win.erase()
667
        self.addnstr(0, 0, self.text, self.width-1)
668

669 670 671 672 673 674 675 676 677 678
    def jump_word_left(self):
        """
        Move the cursor one word to the left
        """
        if not len(self.text) or self.pos == 0:
            return
        previous_space = self.text[:self.pos+self.line_pos].rfind(' ')
        if previous_space == -1:
            previous_space = 0
        diff = self.pos+self.line_pos-previous_space
679
        for i in range(diff):
680
            self.key_left()
681
        return True
682 683 684 685 686 687 688 689 690 691 692

    def jump_word_right(self):
        """
        Move the cursor one word to the right
        """
        if len(self.text) == self.pos+self.line_pos or not len(self.text):
            return
        next_space = self.text.find(' ', self.pos+self.line_pos+1)
        if next_space == -1:
            next_space = len(self.text)
        diff = next_space - (self.pos+self.line_pos)
693
        for i in range(diff):
694
            self.key_right()
695
        return True
696 697 698 699 700 701 702 703 704 705 706

    def delete_word(self):
        """
        Delete the word just before the cursor
        """
        if not len(self.text) or self.pos == 0:
            return
        previous_space = self.text[:self.pos+self.line_pos].rfind(' ')
        if previous_space == -1:
            previous_space = 0
        diff = self.pos+self.line_pos-previous_space
707
        for i in range(diff):
708 709
            self.key_backspace(False)
        self.rewrite_text()
710
        return True
711 712 713 714 715 716 717

    def delete_end_of_line(self):
        """
        Cut the text from cursor to the end of line
        """
        if len(self.text) == self.pos+self.line_pos:
            return              # nothing to cut
718
        Input.clipboard = self.text[self.pos+self.line_pos:]
719 720
        self.text = self.text[:self.pos+self.line_pos]
        self.key_end()
721
        return True
722 723 724 725 726 727 728

    def delete_begining_of_line(self):
        """
        Cut the text from cursor to the begining of line
        """
        if self.pos+self.line_pos == 0:
            return
729
        Input.clipboard = self.text[:self.pos+self.line_pos]
730 731
        self.text = self.text[self.pos+self.line_pos:]
        self.key_home()
732
        return True
733 734 735 736 737

    def paste_clipboard(self):
        """
        Insert what is in the clipboard at the cursor position
        """
738
        if not Input.clipboard or len(Input.clipboard) == 0:
739
            return
740
        for letter in Input.clipboard:
741
            self.do_command(letter)
742
        return True
743

744
    def key_dc(self):
745 746 747
        """
        delete char just after the cursor
        """
748
        self.reset_completion()
749 750 751 752
        if self.pos + self.line_pos == len(self.text):
            return              # end of line, nothing to delete
        self.text = self.text[:self.pos+self.line_pos]+self.text[self.pos+self.line_pos+1:]
        self.rewrite_text()
753
        return True
754 755

    def key_home(self):
756 757 758
        """
        Go to the begining of line
        """
759
        self.reset_completion()
760
        self.pos = 0
761 762
        self.line_pos = 0
        self.rewrite_text()
763
        return True
764

765 766 767 768 769 770
    def key_end(self, reset=False):
        """
        Go to the end of line
        """
        if reset:
            self.reset_completion()
771
        if len(self.text) >= self.width-1:
772 773
            self.pos = self.width-1
            self.line_pos = len(self.text)-self.pos
774
        else:
775 776 777
            self.pos = len(self.text)
            self.line_pos = 0
        self.rewrite_text()
778
        return True
779 780

    def key_left(self):
781 782 783
        """
        Move the cursor one char to the left
        """
784
        self.reset_completion()
785
        (y, x) = self._win.getyx()
786 787 788
        if self.pos == self.width-1 and self.line_pos > 0:
            self.line_pos -= 1
        elif self.pos >= 1:
789
            self.pos -= 1
790
        self.rewrite_text()
791
        return True
792 793

    def key_right(self):
794 795 796
        """
        Move the cursor one char to the right
        """
797
        self.reset_completion()
798
        (y, x) = self._win.getyx()
799 800 801 802
        if self.pos == self.width-1:
            if self.line_pos + self.width-1 < len(self.text):
                self.line_pos += 1
        elif self.pos < len(self.text):
803
            self.pos += 1
804
        self.rewrite_text()
805
        return True
806

807
    def key_backspace(self, reset=True):
808 809 810
        """
        Delete the char just before the cursor
        """
811
        self.reset_completion()
812
        (y, x) = self._win.getyx()
813 814 815 816
        if self.pos == 0:
            return
        self.text = self.text[:self.pos+self.line_pos-1]+self.text[self.pos+self.line_pos:]
        self.key_left()
817 818
        if reset:
            self.rewrite_text()
819
        return True
820

821
    def auto_completion(self, word_list, add_after):
822
        """
823 824 825 826
        Complete the input, from a list of words
        if add_after is None, we use the value defined in completion
        plus a space, after the completion. If it's a string, we use it after the
        completion (with no additional space)
827
        """
828
        if self.pos+self.line_pos != len(self.text): # or len(self.text) == 0
829
            return # we don't complete if cursor is not at the end of line
830
        completion_type = config.get('completion', 'normal')
831
        if completion_type == 'shell' and self.text != '':
832
            self.shell_completion(word_list, add_after)
833
        else:
834
            self.normal_completion(word_list, add_after)
835
        return True
836 837

    def reset_completion(self):
838 839 840
        """
        Reset the completion list (called on ALL keys except tab)
        """
841
        self.hit_list = []
842
        self.last_completion = None
843

844
    def normal_completion(self, word_list, after):
845 846 847
        """
        Normal completion
        """
848
        (y, x) = self._win.getyx()
849
        if not self.last_completion:
850 851
            # begin is the begining of the word we want to complete
            if self.text.strip() and not self.text.endswith(' '):
852
                begin = self.text.split()[-1].lower()
853 854
            else:
                begin = ''
855
            hit_list = []       # list of matching nicks
856 857 858
            for word in word_list:
                if word.lower().startswith(begin):
                    hit_list.append(word)
859 860 861
            if len(hit_list) == 0:
                return
            self.hit_list = hit_list
862
            end = len(begin)
863
        else:
864 865 866 867
            if after:
                begin = self.text[-len(after)-len(self.last_completion):-len(after)]
            else:
                begin = self.last_completion
868
            self.hit_list.append(self.hit_list.pop(0)) # rotate list
869
            end = len(begin) + len(after)
870 871
        if end:
            self.text = self.text[:-end]
872
        nick = self.hit_list[0] # take the first hit
873 874
        self.last_completion = nick
        self.text += nick +after
875
        self.key_end(False)
876

877
    def shell_completion(self, word_list, after):
878 879 880
        """