1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
#
# This file is part of Poezio.
#
# Poezio is free software: you can redistribute it and/or modify
# it under the terms of the zlib license. See the COPYING file.
"""
Define the TextBuffer class
"""
import logging
log = logging.getLogger(__name__)
import collections
from datetime import datetime
from config import config
from theming import get_theme
message_fields = 'txt nick_color time str_time nickname user identifier highlight me old_message revisions jid'
Message = collections.namedtuple('Message', message_fields)
class CorrectionError(Exception):
pass
def other_elems(self):
acc = ['Message(']
fields = message_fields.split()
fields.remove('old_message')
for field in fields:
acc.append('%s=%s' % (field, repr(getattr(self, field))))
return ', '.join(acc) + ', old_message='
def repr_message(self):
init = other_elems(self)
acc = [init]
next_message = self.old_message
rev = 1
while next_message:
acc.append(other_elems(next_message))
next_message = next_message.old_message
rev += 1
acc.append('None')
while rev:
acc.append(')')
rev -= 1
return ''.join(acc)
Message.__repr__ = repr_message
Message.__str__ = repr_message
class TextBuffer(object):
"""
This class just keep trace of messages, in a list with various
informations and attributes.
"""
def __init__(self, messages_nb_limit=config.get('max_messages_in_memory', 2048)):
self.messages_nb_limit = messages_nb_limit
self.messages = [] # Message objects
self.windows = [] # we keep track of one or more windows
# so we can pass the new messages to them, as they are added, so
# they (the windows) can build the lines from the new message
def add_window(self, win):
self.windows.append(win)
@property
def last_message(self):
return self.messages[-1] if self.messages else None
@staticmethod
def make_message(txt, time, nickname, nick_color, history, user, identifier, str_time=None, highlight=False, old_message=None, revisions=0, jid=None):
time = time or datetime.now()
me = False
if txt.startswith('/me '):
me = True
txt = '\x19%(info_col)s}' % {'info_col': get_theme().COLOR_ME_MESSAGE[0]} + txt[4:]
msg = Message(
txt='%s\x19o'%(txt.replace('\t', ' '),),
nick_color=nick_color,
time=time,
str_time=(time.strftime("%Y-%m-%d %H:%M:%S") if history else time.strftime("%H:%M:%S")) if str_time is None else '',
nickname=nickname,
user=user,
identifier=identifier,
highlight=highlight,
me=me,
old_message=old_message,
revisions=revisions,
jid=jid)
log.debug('Set message %s with %s.', identifier, msg)
return msg
def add_message(self, txt, time=None, nickname=None, nick_color=None, history=None, user=None, highlight=False, identifier=None, str_time=None, jid=None):
msg = self.make_message(txt, time, nickname, nick_color, history, user, identifier, str_time=str_time, highlight=highlight, jid=jid)
self.messages.append(msg)
while len(self.messages) > self.messages_nb_limit:
self.messages.pop(0)
ret_val = None
for window in self.windows: # make the associated windows
# build the lines from the new message
nb = window.build_new_message(msg, history=history, highlight=highlight, timestamp=config.get("show_timestamps", True))
if ret_val is None:
ret_val = nb
if window.pos != 0:
window.scroll_up(nb)
return ret_val or 1
def modify_message(self, txt, old_id, new_id, highlight=False, time=None, user=None, jid=None):
for i in range(len(self.messages) -1, -1, -1):
msg = self.messages[i]
if msg.identifier == old_id:
if msg.user and msg.user is not user:
raise CorrectionError("Different users")
elif len(msg.str_time) > 8: # ugly
raise CorrectionError("Delayed message")
elif not msg.user and (msg.jid is None or jid is None):
raise CorrectionError('Could not check the identity of the sender')
elif not msg.user and msg.jid != jid:
raise CorrectionError('Messages %s and %s have not been sent by the same fullJID' % (old_id, new_id))
message = self.make_message(txt, time if time else msg.time, msg.nickname, msg.nick_color, None, msg.user, new_id, highlight=highlight, old_message=msg, revisions=msg.revisions + 1, jid=jid)
self.messages[i] = message
log.debug('Replacing message %s with %s.', old_id, new_id)
return message
log.debug('Message %s not found in text_buffer, abort replacement.', old_id)
raise CorrectionError("nothing to replace")
def del_window(self, win):
self.windows.remove(win)
def __del__(self):
log.debug('** Deleting %s messages from textbuffer', len(self.messages))
|
