131 lines
4.6 KiB
Python
131 lines
4.6 KiB
Python
# Copyright (C) 2009-2010 Alexander Cherniuk <ts33kr@gmail.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Provides a glue to tie command system framework and the actual code
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where it would be dropped in. Defines a little bit of scaffolding to
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support interaction between the two and a few utility methods so you
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don't need to dig up the code itself code to write basic commands.
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"""
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from types import StringTypes
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from traceback import print_exc
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from common import gajim
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from ..framework import CommandProcessor
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from ..errors import CommandError, NoCommandError
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class ChatCommandProcessor(CommandProcessor):
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"""
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A basic scaffolding to provide convenient interaction between the
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command system and chat controls.
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"""
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def process_as_command(self, text):
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self.command_succeeded = False
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flag = super(ChatCommandProcessor, self).process_as_command(text)
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if flag and self.command_succeeded:
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self.add_history(text)
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self.clear_input()
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return flag
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def execute_command(self, name, arguments):
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try:
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super(ChatCommandProcessor, self).execute_command(name, arguments)
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except NoCommandError, error:
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details = dict(name=error.name, message=error.message)
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message = "%(name)s: %(message)s\n" % details
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message += "Try using the //%(name)s or /say /%(name)s " % details
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message += "construct if you intended to send it as a text."
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self.echo(message, 'error')
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except CommandError, error:
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self.echo("%s: %s" % (error.name, error.message), 'error')
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except Exception:
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self.echo("An error occured while trying to execute the command", 'error')
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print_exc()
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else:
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self.command_succeeded = True
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def looks_like_command(self, text, body, name, arguments):
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# Command escape stuff ggoes here. If text was prepended by the
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# command prefix twice, like //not_a_command (if prefix is set
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# to /) then it will be escaped, that is sent just as a regular
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# message with one (only one) prefix removed, so message will be
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# /not_a_command.
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if body.startswith(self.COMMAND_PREFIX):
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self.send(body)
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return True
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def command_preprocessor(self, command, name, arguments, args, kwargs):
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# If command argument contain h or help option - forward it to
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# the /help command. Dont forget to pass self, as all commands
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# are unbound. And also don't forget to print output.
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if 'h' in kwargs or 'help' in kwargs:
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help = self.get_command('help')
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self.echo(help(self, name))
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return True
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def command_postprocessor(self, command, name, arguments, args, kwargs, value):
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# If command returns a string - print it to a user. A convenient
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# and sufficient in most simple cases shortcut to a using echo.
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if value and isinstance(value, StringTypes):
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self.echo(value)
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class CommandTools:
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"""
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Contains a set of basic tools and shortcuts you can use in your
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commands to performe some simple operations.
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"""
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def echo(self, text, kind='info'):
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"""
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Print given text to the user.
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"""
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self.print_conversation(str(text), kind)
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def send(self, text):
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"""
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Send a message to the contact.
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"""
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self.send_message(text, process_commands=False)
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def set_input(self, text):
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"""
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Set given text into the input.
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"""
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buffer = self.msg_textview.get_buffer()
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buffer.set_text(text)
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def clear_input(self):
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"""
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Clear input.
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"""
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self.set_input(str())
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def add_history(self, text):
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"""
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Add given text to the input history, so user can scroll through
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it using ctrl + up/down arrow keys.
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"""
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self.save_sent_message(text)
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@property
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def connection(self):
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"""
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Get the current connection object.
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"""
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return gajim.connections[self.account]
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