""" Module for the base Tabs The root class Tab defines the generic interface and attributes of a tab. A tab organizes various Windows around the screen depending of the tab specificity. If the tab shows messages, it will also reference a buffer containing the messages. Each subclass should redefine its own refresh() and resize() method according to its windows. This module also defines ChatTabs, the parent class for all tabs revolving around chats. """ import logging log = logging.getLogger(__name__) import singleton import string import time import weakref from datetime import datetime, timedelta from xml.etree import cElementTree as ET import core import timed_events import windows import xhtml from common import safeJID from config import config from decorators import refresh_wrapper from logger import logger from text_buffer import TextBuffer from theming import get_theme, dump_tuple from decorators import command_args_parser # getters for tab colors (lambdas, so that they are dynamic) STATE_COLORS = { 'disconnected': lambda: get_theme().COLOR_TAB_DISCONNECTED, 'scrolled': lambda: get_theme().COLOR_TAB_SCROLLED, 'nonempty': lambda: get_theme().COLOR_TAB_NONEMPTY, 'joined': lambda: get_theme().COLOR_TAB_JOINED, 'message': lambda: get_theme().COLOR_TAB_NEW_MESSAGE, 'composing': lambda: get_theme().COLOR_TAB_COMPOSING, 'highlight': lambda: get_theme().COLOR_TAB_HIGHLIGHT, 'private': lambda: get_theme().COLOR_TAB_PRIVATE, 'normal': lambda: get_theme().COLOR_TAB_NORMAL, 'current': lambda: get_theme().COLOR_TAB_CURRENT, 'attention': lambda: get_theme().COLOR_TAB_ATTENTION, } VERTICAL_STATE_COLORS = { 'disconnected': lambda: get_theme().COLOR_VERTICAL_TAB_DISCONNECTED, 'scrolled': lambda: get_theme().COLOR_VERTICAL_TAB_SCROLLED, 'nonempty': lambda: get_theme().COLOR_VERTICAL_TAB_NONEMPTY, 'joined': lambda: get_theme().COLOR_VERTICAL_TAB_JOINED, 'message': lambda: get_theme().COLOR_VERTICAL_TAB_NEW_MESSAGE, 'composing': lambda: get_theme().COLOR_VERTICAL_TAB_COMPOSING, 'highlight': lambda: get_theme().COLOR_VERTICAL_TAB_HIGHLIGHT, 'private': lambda: get_theme().COLOR_VERTICAL_TAB_PRIVATE, 'normal': lambda: get_theme().COLOR_VERTICAL_TAB_NORMAL, 'current': lambda: get_theme().COLOR_VERTICAL_TAB_CURRENT, 'attention': lambda: get_theme().COLOR_VERTICAL_TAB_ATTENTION, } # priority of the different tab states when using Alt+e # higher means more priority, < 0 means not selectable STATE_PRIORITY = { 'normal': -1, 'current': -1, 'disconnected': 0, 'nonempty': 0.1, 'scrolled': 0.5, 'composing': 0.9, 'message': 1, 'joined': 1, 'highlight': 2, 'private': 2, 'attention': 3 } class Tab(object): tab_core = None size_manager = None plugin_commands = {} plugin_keys = {} def __init__(self): if not hasattr(self, 'name'): self.name = self.__class__.__name__ self.input = None self._state = 'normal' self._prev_state = None self.need_resize = False self.key_func = {} # each tab should add their keys in there # and use them in on_input self.commands = {} # and their own commands @property def size(self): if not Tab.size_manager: Tab.size_manager = self.core.size return Tab.size_manager @property def core(self): if not Tab.tab_core: Tab.tab_core = singleton.Singleton(core.Core) return Tab.tab_core @property def nb(self): for index, tab in enumerate(self.core.tabs): if tab == self: return index return len(self.core.tabs) @property def tab_win(self): if not Tab.tab_core: Tab.tab_core = singleton.Singleton(core.Core) return Tab.tab_core.tab_win @property def left_tab_win(self): if not Tab.tab_core: Tab.tab_core = singleton.Singleton(core.Core) return Tab.tab_core.left_tab_win @staticmethod def tab_win_height(): """ Returns 1 or 0, depending on if we are using the vertical tab list or not. """ if config.get('enable_vertical_tab_list'): return 0 return 1 @property def info_win(self): return self.core.information_win @property def color(self): return STATE_COLORS[self._state]() @property def vertical_color(self): return VERTICAL_STATE_COLORS[self._state]() @property def state(self): return self._state @state.setter def state(self, value): if not value in STATE_COLORS: log.debug("Invalid value for tab state: %s", value) elif STATE_PRIORITY[value] < STATE_PRIORITY[self._state] and \ value not in ('current', 'disconnected') and \ not (self._state == 'scrolled' and value == 'disconnected'): log.debug("Did not set state because of lower priority, asked: %s, kept: %s", value, self._state) elif self._state == 'disconnected' and value not in ('joined', 'current'): log.debug('Did not set state because disconnected tabs remain visible') else: self._state = value if self._state == 'current': self._prev_state = None def set_state(self, value): self._state = value def save_state(self): if self._state != 'composing': self._prev_state = self._state def restore_state(self): if self.state == 'composing' and self._prev_state: self._state = self._prev_state self._prev_state = None elif not self._prev_state: self._state = 'normal' @staticmethod def resize(scr): Tab.height, Tab.width = scr.getmaxyx() windows.Win._tab_win = scr def missing_command_callback(self, command_name): """ Callback executed when a command is not found. Returns True if the callback took care of displaying the error message, False otherwise. """ return False def register_command(self, name, func, *, desc='', shortdesc='', completion=None, usage=''): """ Add a command """ if name in self.commands: return if not desc and shortdesc: desc = shortdesc self.commands[name] = core.Command(func, desc, completion, shortdesc, usage) def complete_commands(self, the_input): """ Does command completion on the specified input for both global and tab-specific commands. This should be called from the completion method (on tab, for example), passing the input where completion is to be made. It can completion the command name itself or an argument of the command. Returns True if a completion was made, False else. """ txt = the_input.get_text() # check if this is a command if txt.startswith('/') and not txt.startswith('//'): position = the_input.get_argument_position(quoted=False) if position == 0: words = ['/%s'% (name) for name in sorted(self.core.commands)] +\ ['/%s' % (name) for name in sorted(self.commands)] the_input.new_completion(words, 0) # Do not try to cycle command completion if there was only # one possibily. The next tab will complete the argument. # Otherwise we would need to add a useless space before being # able to complete the arguments. hit_copy = set(the_input.hit_list) while not hit_copy: whitespace = the_input.text.find(' ') if whitespace == -1: whitespace = len(the_input.text) the_input.text = the_input.text[:whitespace-1] + the_input.text[whitespace:] the_input.new_completion(words, 0) hit_copy = set(the_input.hit_list) if len(hit_copy) == 1: the_input.do_command(' ') the_input.reset_completion() return True # check if we are in the middle of the command name elif len(txt.split()) > 1 or\ (txt.endswith(' ') and not the_input.last_completion): command_name = txt.split()[0][1:] if command_name in self.commands: command = self.commands[command_name] elif command_name in self.core.commands: command = self.core.commands[command_name] else: # Unknown command, cannot complete return False if command[2] is None: return False # There's no completion function else: return command[2](the_input) return False def execute_command(self, provided_text): """ Execute the command in the input and return False if the input didn't contain a command """ txt = provided_text or self.input.key_enter() if txt.startswith('/') and not txt.startswith('//') and\ not txt.startswith('/me '): command = txt.strip().split()[0][1:] arg = txt[2+len(command):] # jump the '/' and the ' ' func = None if command in self.commands: # check tab-specific commands func = self.commands[command][0] elif command in self.core.commands: # check global commands func = self.core.commands[command][0] else: low = command.lower() if low in self.commands: func = self.commands[low][0] elif low in self.core.commands: func = self.core.commands[low][0] else: if self.missing_command_callback is not None: error_handled = self.missing_command_callback(low) if not error_handled: self.core.information("Unknown command (%s)" % (command), 'Error') if command in ('correct', 'say'): # hack arg = xhtml.convert_simple_to_full_colors(arg) else: arg = xhtml.clean_text_simple(arg) if func: self.input.reset_completion() func(arg) return True else: return False def refresh_tab_win(self): if config.get('enable_vertical_tab_list'): if self.left_tab_win and not self.size.core_degrade_x: self.left_tab_win.refresh() elif not self.size.core_degrade_y: self.tab_win.refresh() def refresh(self): """ Called on each screen refresh (when something has changed) """ pass def get_name(self): """ get the name of the tab """ return self.name def get_nick(self): """ Get the nick of the tab (defaults to its name) """ return self.name def get_text_window(self): """ Returns the principal TextWin window, if there's one """ return None def on_input(self, key, raw): """ raw indicates if the key should activate the associated command or not. """ pass def update_commands(self): for c in self.plugin_commands: if not c in self.commands: self.commands[c] = self.plugin_commands[c] def update_keys(self): for k in self.plugin_keys: if not k in self.key_func: self.key_func[k] = self.plugin_keys[k] def on_lose_focus(self): """ called when this tab loses the focus. """ self.state = 'normal' def on_gain_focus(self): """ called when this tab gains the focus. """ self.state = 'current' def on_scroll_down(self): """ Defines what happens when we scroll down """ pass def on_scroll_up(self): """ Defines what happens when we scroll up """ pass def on_line_up(self): """ Defines what happens when we scroll one line up """ pass def on_line_down(self): """ Defines what happens when we scroll one line up """ pass def on_half_scroll_down(self): """ Defines what happens when we scroll half a screen down """ pass def on_half_scroll_up(self): """ Defines what happens when we scroll half a screen up """ pass def on_info_win_size_changed(self): """ Called when the window with the informations is resized """ pass def on_close(self): """ Called when the tab is to be closed """ if self.input: self.input.on_delete() def matching_names(self): """ Returns a list of strings that are used to name a tab with the /win command. For example you could switch to a tab that returns ['hello', 'coucou'] using /win hel, or /win coucou If not implemented in the tab, it just doesn’t match with anything. """ return [] def __del__(self): log.debug('------ Closing tab %s', self.__class__.__name__) class GapTab(Tab): def __bool__(self): return False def __len__(self): return 0 @property def name(self): return '' def refresh(self): log.debug('WARNING: refresh() called on a gap tab, this should not happen') class ChatTab(Tab): """ A tab containing a chat of any type. Just use this class instead of Tab if the tab needs a recent-words completion Also, ^M is already bound to on_enter And also, add the /say command """ plugin_commands = {} plugin_keys = {} def __init__(self, jid=''): Tab.__init__(self) self.name = jid self.text_win = None self._text_buffer = TextBuffer() self.chatstate = None # can be "active", "composing", "paused", "gone", "inactive" # We keep a reference of the event that will set our chatstate to "paused", so that # we can delete it or change it if we need to self.timed_event_paused = None # Keeps the last sent message to complete it easily in completion_correct, and to replace it. self.last_sent_message = None self.key_func['M-v'] = self.move_separator self.key_func['M-h'] = self.scroll_separator self.key_func['M-/'] = self.last_words_completion self.key_func['^M'] = self.on_enter self.register_command('say', self.command_say, usage='<message>', shortdesc='Send the message.') self.register_command('xhtml', self.command_xhtml, usage='<custom xhtml>', shortdesc='Send custom XHTML.') self.register_command('clear', self.command_clear, shortdesc='Clear the current buffer.') self.register_command('correct', self.command_correct, desc='Fix the last message with whatever you want.', shortdesc='Correct the last message.', completion=self.completion_correct) self.chat_state = None self.update_commands() self.update_keys() # Get the logs log_nb = config.get('load_log') logs = self.load_logs(log_nb) if logs: for message in logs: self._text_buffer.add_message(**message) @property def is_muc(self): return False def load_logs(self, log_nb): logs = logger.get_logs(safeJID(self.name).bare, log_nb) return logs def log_message(self, txt, nickname, time=None, typ=1): """ Log the messages in the archives. """ name = safeJID(self.name).bare if not logger.log_message(name, nickname, txt, date=time, typ=typ): self.core.information('Unable to write in the log file', 'Error') def add_message(self, txt, time=None, nickname=None, forced_user=None, nick_color=None, identifier=None, jid=None, history=None, typ=1, highlight=False): self.log_message(txt, nickname, time=time, typ=typ) self._text_buffer.add_message(txt, time=time, nickname=nickname, highlight=highlight, nick_color=nick_color, history=history, user=forced_user, identifier=identifier, jid=jid) def modify_message(self, txt, old_id, new_id, user=None, jid=None, nickname=None): self.log_message(txt, nickname, typ=1) message = self._text_buffer.modify_message(txt, old_id, new_id, time=time, user=user, jid=jid) if message: self.text_win.modify_message(old_id, message) self.core.refresh_window() return True return False def last_words_completion(self): """ Complete the input with words recently said """ # build the list of the recent words char_we_dont_want = string.punctuation+' ’„“”…«»' words = list() for msg in self._text_buffer.messages[:-40:-1]: if not msg: continue txt = xhtml.clean_text(msg.txt) for char in char_we_dont_want: txt = txt.replace(char, ' ') for word in txt.split(): if len(word) >= 4 and word not in words: words.append(word) words.extend([word for word in config.get('words').split(':') if word]) self.input.auto_completion(words, ' ', quotify=False) def on_enter(self): txt = self.input.key_enter() if txt: if not self.execute_command(txt): if txt.startswith('//'): txt = txt[1:] self.command_say(xhtml.convert_simple_to_full_colors(txt)) self.cancel_paused_delay() @command_args_parser.raw def command_xhtml(self, xhtml): """" /xhtml <custom xhtml> """ message = self.generate_xhtml_message(xhtml) if message: message.send() def generate_xhtml_message(self, arg): if not arg: return try: body = xhtml.clean_text(xhtml.xhtml_to_poezio_colors(arg)) ET.fromstring(arg) except: self.core.information('Could not send custom xhtml', 'Error') log.error('/xhtml: Unable to send custom xhtml', exc_info=True) return msg = self.core.xmpp.make_message(self.get_dest_jid()) msg['body'] = body msg.enable('html') msg['html']['body'] = arg return msg def get_dest_jid(self): return self.name @refresh_wrapper.always def command_clear(self, ignored): """ /clear """ self._text_buffer.messages = [] self.text_win.rebuild_everything(self._text_buffer) def send_chat_state(self, state, always_send=False): """ Send an empty chatstate message """ if not self.is_muc or self.joined: if state in ('active', 'inactive', 'gone') and self.inactive and not always_send: return if (config.get_by_tabname('send_chat_states', self.general_jid) and self.remote_wants_chatstates is not False): msg = self.core.xmpp.make_message(self.get_dest_jid()) msg['type'] = self.message_type msg['chat_state'] = state self.chat_state = state msg.send() return True def send_composing_chat_state(self, empty_after): """ Send the "active" or "composing" chatstate, depending on the the current status of the input """ name = self.general_jid if (config.get_by_tabname('send_chat_states', name) and self.remote_wants_chatstates): needed = 'inactive' if self.inactive else 'active' self.cancel_paused_delay() if not empty_after: if self.chat_state != "composing": self.send_chat_state("composing") self.set_paused_delay(True) elif empty_after and self.chat_state != needed: self.send_chat_state(needed, True) def set_paused_delay(self, composing): """ we create a timed event that will put us to paused in a few seconds """ if not config.get_by_tabname('send_chat_states', self.general_jid): return # First, cancel the delay if it already exists, before rescheduling # it at a new date self.cancel_paused_delay() new_event = timed_events.DelayedEvent(4, self.send_chat_state, 'paused') self.core.add_timed_event(new_event) self.timed_event_paused = new_event def cancel_paused_delay(self): """ Remove that event from the list and set it to None. Called for example when the input is emptied, or when the message is sent """ if self.timed_event_paused is not None: self.core.remove_timed_event(self.timed_event_paused) self.timed_event_paused = None @command_args_parser.raw def command_correct(self, line): """ /correct <fixed message> """ if not line: self.core.command_help('correct') return if not self.last_sent_message: self.core.information('There is no message to correct.') return self.command_say(line, correct=True) def completion_correct(self, the_input): if self.last_sent_message and the_input.get_argument_position() == 1: return the_input.auto_completion([self.last_sent_message['body']], '', quotify=False) @property def inactive(self): """Whether we should send inactive or active as a chatstate""" return self.core.status.show in ('xa', 'away') or\ (hasattr(self, 'directed_presence') and not self.directed_presence) def move_separator(self): self.text_win.remove_line_separator() self.text_win.add_line_separator(self._text_buffer) self.text_win.refresh() self.input.refresh() def get_conversation_messages(self): return self._text_buffer.messages def check_scrolled(self): if self.text_win.pos != 0: self.state = 'scrolled' @command_args_parser.raw def command_say(self, line, correct=False): pass def on_line_up(self): return self.text_win.scroll_up(1) def on_line_down(self): return self.text_win.scroll_down(1) def on_scroll_up(self): return self.text_win.scroll_up(self.text_win.height-1) def on_scroll_down(self): return self.text_win.scroll_down(self.text_win.height-1) def on_half_scroll_up(self): return self.text_win.scroll_up((self.text_win.height-1) // 2) def on_half_scroll_down(self): return self.text_win.scroll_down((self.text_win.height-1) // 2) @refresh_wrapper.always def scroll_separator(self): self.text_win.scroll_to_separator() class OneToOneTab(ChatTab): def __init__(self, jid=''): ChatTab.__init__(self, jid) # Set to true once the first disco is done self.__initial_disco = False # change this to True or False when # we know that the remote user wants chatstates, or not. # None means we don’t know yet, and we send only "active" chatstates self._remote_wants_chatstates = None self.remote_supports_attention = True self.remote_supports_receipts = True self.check_features() @property def remote_wants_chatstates(self): return self._remote_wants_chatstates @remote_wants_chatstates.setter def remote_wants_chatstates(self, value): old_value = self._remote_wants_chatstates self._remote_wants_chatstates = value if (old_value is None and value != None) or \ (old_value != value and value != None): ok = get_theme().CHAR_OK nope = get_theme().CHAR_EMPTY support = ok if value else nope if value: msg = '\x19%s}Contact supports chat states [%s].' else: msg = '\x19%s}Contact does not support chat states [%s].' color = dump_tuple(get_theme().COLOR_INFORMATION_TEXT) msg = msg % (color, support) self.add_message(msg, typ=0) self.core.refresh_window() def ack_message(self, msg_id, msg_jid): """ Ack a message """ new_msg = self._text_buffer.ack_message(msg_id, msg_jid) if new_msg: self.text_win.modify_message(msg_id, new_msg) self.core.refresh_window() def nack_message(self, error, msg_id, msg_jid): """ Ack a message """ new_msg = self._text_buffer.nack_message(error, msg_id, msg_jid) if new_msg: self.text_win.modify_message(msg_id, new_msg) self.core.refresh_window() return True return False @command_args_parser.raw def command_xhtml(self, xhtml_data): message = self.generate_xhtml_message(xhtml_data) if message: if self.remote_supports_receipts: message._add_receipt = True if self.remote_wants_chatstates: message['chat_sate'] = 'active' message.send() body = xhtml.xhtml_to_poezio_colors(xhtml_data, force=True) self._text_buffer.add_message(body, nickname=self.core.own_nick, identifier=message['id'],) self.refresh() def check_features(self): "check the features supported by the other party" if safeJID(self.get_dest_jid()).resource: self.core.xmpp.plugin['xep_0030'].get_info( jid=self.get_dest_jid(), timeout=5, callback=self.features_checked) @command_args_parser.raw def command_attention(self, message): """/attention [message]""" if message is not '': self.command_say(message, attention=True) else: msg = self.core.xmpp.make_message(self.get_dest_jid()) msg['type'] = 'chat' msg['attention'] = True msg.send() @command_args_parser.raw def command_say(self, line, correct=False, attention=False): pass def missing_command_callback(self, command_name): if command_name not in ('correct', 'attention'): return False if command_name == 'correct': feature = 'message correction' elif command_name == 'attention': feature = 'attention requests' msg = ('%s does not support %s, therefore the /%s ' 'command is currently disabled in this tab.') msg = msg % (self.name, feature, command_name) self.core.information(msg, 'Info') return True def _feature_attention(self, features): "Check for the 'attention' features" if 'urn:xmpp:attention:0' in features: self.remote_supports_attention = True self.register_command('attention', self.command_attention, usage='[message]', shortdesc='Request the attention.', desc='Attention: Request the attention of ' 'the contact. Can also send a message' ' along with the attention.') else: self.remote_supports_attention = False return self.remote_supports_attention def _feature_correct(self, features): "Check for the 'correction' feature" if not 'urn:xmpp:message-correct:0' in features: if 'correct' in self.commands: del self.commands['correct'] elif not 'correct' in self.commands: self.register_command('correct', self.command_correct, desc='Fix the last message with whatever you want.', shortdesc='Correct the last message.', completion=self.completion_correct) return 'correct' in self.commands def _feature_receipts(self, features): "Check for the 'receipts' feature" if 'urn:xmpp:receipts' in features: self.remote_supports_receipts = True else: self.remote_supports_receipts = False return self.remote_supports_receipts def features_checked(self, iq): "Features check callback" features = iq['disco_info'].get_features() or [] before = ('correct' in self.commands, self.remote_supports_attention, self.remote_supports_receipts) correct = self._feature_correct(features) attention = self._feature_attention(features) receipts = self._feature_receipts(features) if (correct, attention, receipts) == before and self.__initial_disco: return else: self.__initial_disco = True if not (correct or attention or receipts): return # don’t display anything ok = get_theme().CHAR_OK nope = get_theme().CHAR_EMPTY correct = ok if correct else nope attention = ok if attention else nope receipts = ok if receipts else nope msg = ('\x19%s}Contact supports: correction [%s], ' 'attention [%s], receipts [%s].') color = dump_tuple(get_theme().COLOR_INFORMATION_TEXT) msg = msg % (color, correct, attention, receipts) self.add_message(msg, typ=0) self.core.refresh_window()