685 lines
25 KiB
Python
685 lines
25 KiB
Python
#!/usr/bin/python
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# Copyright (C) 2008-2014 Yann Leboulanger <asterix AT lagaule.org>
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#
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# This file is part of Gajim.
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#
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# Gajim 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
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# by the Free Software Foundation; version 3 only.
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#
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# Gajim 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 Gajim. If not, see <http://www.gnu.org/licenses/>.
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#
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# Copyright (c) 2007, IBM Corporation
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# All rights reserved.
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## Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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## * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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## * Neither the name of the IBM Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""
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Provides IPython console widget
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@author: Eitan Isaacson
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@organization: IBM Corporation
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@copyright: Copyright (c) 2007 IBM Corporation
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@license: BSD
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All rights reserved. This program and the accompanying materials are made
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available under the terms of the BSD which accompanies this distribution, and
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is available at U{http://www.opensource.org/licenses/bsd-license.php}
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"""
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import re
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import sys
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import os
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from io import StringIO
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from functools import reduce
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from gi.repository import Gtk
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from gi.repository import Gdk
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from gi.repository import GObject
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from gi.repository import GLib
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from gi.repository import Pango
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try:
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import IPython
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except ImportError:
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IPython = None
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HAS_IPYTHON5 = True
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try:
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from pygments.token import Token
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# pylint: disable=ungrouped-imports
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from IPython.core.displayhook import DisplayHook
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from IPython.core.display_trap import DisplayTrap
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# pylint: enable=ungrouped-imports
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class MyPromptDisplayHook(DisplayHook):
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def __init__(self, shell, view):
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DisplayHook.__init__(self, shell=shell)
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self.view = view
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def write_output_prompt(self):
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tokens = self.shell.prompts.out_prompt_tokens()
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self.view.write('\n')
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self.view.write(tokens)
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except Exception:
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HAS_IPYTHON5 = False
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class IterableIPShell:
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"""
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Create an IPython instance. Does not start a blocking event loop,
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instead allow single iterations. This allows embedding in GTK+
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without blockage
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@ivar IP: IPython instance.
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@type IP: IPython.iplib.InteractiveShell
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@ivar iter_more: Indicates if the line executed was a complete command,
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or we should wait for more.
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@type iter_more: integer
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@ivar history_level: The place in history where we currently are
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when pressing up/down.
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@type history_level: integer
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@ivar complete_sep: Seperation delimeters for completion function.
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@type complete_sep: _sre.SRE_Pattern
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"""
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def __init__(self, argv=None, user_ns=None, user_global_ns=None, cin=None,
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cout=None, cerr=None, input_func=None):
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"""
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@param argv: Command line options for IPython
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@type argv: list
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@param user_ns: User namespace.
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@type user_ns: dictionary
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@param user_global_ns: User global namespace.
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@type user_global_ns: dictionary.
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@param cin: Console standard input.
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@type cin: IO stream
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@param cout: Console standard output.
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@type cout: IO stream
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@param cerr: Console standard error.
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@type cerr: IO stream
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@param input_func: Replacement for builtin raw_input()
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@type input_func: function
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"""
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if argv is None:
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argv = []
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io = IPython.utils.io
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if input_func:
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if IPython.version_info[0] >= 1:
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IPython.terminal.interactiveshell.raw_input_original = input_func
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else:
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IPython.frontend.terminal.interactiveshell.raw_input_original = input_func
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if cin:
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io.stdin = io.IOStream(cin)
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if cout:
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io.stdout = io.IOStream(cout)
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if cerr:
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io.stderr = io.IOStream(cerr)
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# This is to get rid of the blockage that accurs during
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# IPython.Shell.InteractiveShell.user_setup()
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io.raw_input = lambda x: None
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os.environ['TERM'] = 'dumb'
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excepthook = sys.excepthook
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if IPython.version_info[0] >= 5:
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from traitlets.config.loader import Config
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else:
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from IPython.config.loader import Config
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cfg = Config()
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cfg.InteractiveShell.colors = "Linux"
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# InteractiveShell's __init__ overwrites io.stdout,io.stderr with
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# sys.stdout, sys.stderr, this makes sure they are right
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old_stdout, old_stderr = sys.stdout, sys.stderr
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sys.stdout, sys.stderr = io.stdout.stream, io.stderr.stream
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# InteractiveShell inherits from SingletonConfigurable so use instance()
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if IPython.version_info[0] >= 1:
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self.IP = IPython.terminal.embed.InteractiveShellEmbed.instance(config=cfg, user_ns=user_ns, user_module=user_global_ns)
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else:
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self.IP = IPython.frontend.terminal.embed.InteractiveShellEmbed.instance(config=cfg, user_ns=user_ns)
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sys.stdout, sys.stderr = old_stdout, old_stderr
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self.IP.system = lambda cmd: self.shell(self.IP.var_expand(cmd),
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header='IPython system call: ',
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local_ns=user_ns)
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#global_ns=user_global_ns)
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#verbose=self.IP.rc.system_verbose)
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self.IP.raw_input = input_func
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sys.excepthook = excepthook
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self.iter_more = 0
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self.history_level = 0
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self.complete_sep = re.compile(r'[\s\{\}\[\]\(\)]')
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self.updateNamespace({'exit':lambda: None})
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self.updateNamespace({'quit':lambda: None})
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#self.IP.readline_startup_hook(self.IP.pre_readline)
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# Workaround for updating namespace with sys.modules
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#
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self.__update_namespace()
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def __update_namespace(self):
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'''
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Update self.IP namespace for autocompletion with sys.modules
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'''
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for k, v in sys.modules.items():
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if not '.' in k:
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self.IP.user_ns.update({k:v})
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def execute(self):
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"""
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Execute the current line provided by the shell object
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"""
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self.history_level = 0
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orig_stdout = sys.stdout
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sys.stdout = IPython.utils.io.stdout
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orig_stdin = sys.stdin
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sys.stdin = IPython.utils.io.stdin
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self.prompt = self.generatePrompt(self.iter_more)
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self.IP.hooks.pre_prompt_hook()
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if self.iter_more:
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try:
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self.prompt = self.generatePrompt(True)
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except Exception:
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self.IP.showtraceback()
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if self.IP.autoindent:
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self.IP.rl_do_indent = True
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try:
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line = self.IP.raw_input(self.prompt)
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except KeyboardInterrupt:
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self.IP.write('\nKeyboardInterrupt\n')
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self.IP.input_splitter.reset()
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except Exception:
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self.IP.showtraceback()
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else:
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self.IP.input_splitter.push(line)
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self.iter_more = self.IP.input_splitter.push_accepts_more()
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self.prompt = self.generatePrompt(self.iter_more)
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if not self.iter_more:
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if IPython.version_info[0] >= 2:
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source_raw = self.IP.input_splitter.raw_reset()
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else:
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source_raw = self.IP.input_splitter.source_raw_reset()[1]
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self.IP.run_cell(source_raw, store_history=True)
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self.IP.rl_do_indent = False
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else:
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# TODO: Auto-indent
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#
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self.IP.rl_do_indent = True
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sys.stdout = orig_stdout
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sys.stdin = orig_stdin
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def generatePrompt(self, is_continuation):
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'''
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Generate prompt depending on is_continuation value
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@param is_continuation
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@type is_continuation: boolean
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@return: The prompt string representation
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@rtype: string
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'''
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# Backwards compatibility with ipyton-0.11
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#
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ver = IPython.__version__
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if '0.11' in ver:
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prompt = self.IP.hooks.generate_prompt(is_continuation)
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else:
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# Prompt for IPython >=5.0:
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if hasattr(self.IP, 'prompts'):
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if is_continuation:
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prompt = self.IP.prompts.continuation_prompt_tokens(self.IP.prompts)
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else:
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prompt = self.IP.prompts.in_prompt_tokens(self.IP.prompts)
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# Prompt for IPython < 5.0
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elif hasattr(self.IP, 'prompt_manager'):
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if is_continuation:
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prompt = self.IP.prompt_manager.render('in2')
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else:
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prompt = self.IP.prompt_manager.render('in')
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return prompt
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def historyBack(self):
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"""
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Provide one history command back
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@return: The command string.
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@rtype: string
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"""
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self.history_level -= 1
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return self._getHistory()
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def historyForward(self):
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"""
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Provide one history command forward
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@return: The command string.
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@rtype: string
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"""
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self.history_level += 1
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return self._getHistory()
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def _getHistory(self):
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"""
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Get the command string of the current history level
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@return: Historic command string.
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@rtype: string
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"""
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try:
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rv = self.IP.user_ns['In'][self.history_level].strip('\n')
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except IndexError:
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self.history_level = 0
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rv = ''
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return rv
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def updateNamespace(self, ns_dict):
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"""
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Add the current dictionary to the shell namespace
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@param ns_dict: A dictionary of symbol-values.
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@type ns_dict: dictionary
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"""
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self.IP.user_ns.update(ns_dict)
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def complete(self, line):
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"""
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Returns an auto completed line and/or possibilities for completion
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@param line: Given line so far.
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@type line: string
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@return: Line completed as for as possible,
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and possible further completions.
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@rtype: tuple
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"""
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split_line = self.complete_sep.split(line)
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if split_line[-1]:
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possibilities = self.IP.complete(split_line[-1])
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else:
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completed = line
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possibilities = ['', []]
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if possibilities:
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def _commonPrefix(str1, str2):
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'''
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Reduction function. returns common prefix of two given strings.
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@param str1: First string.
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@type str1: string
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@param str2: Second string
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@type str2: string
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@return: Common prefix to both strings.
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@rtype: string
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'''
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for i in range(len(str1)):
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if not str2.startswith(str1[:i+1]):
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return str1[:i]
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return str1
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if possibilities[1]:
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common_prefix = reduce(_commonPrefix, possibilities[1]) or line[-1]
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completed = line[:-len(split_line[-1])]+common_prefix
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else:
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completed = line
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else:
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completed = line
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return completed, possibilities[1]
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class ConsoleView(Gtk.TextView):
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"""
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Specialized text view for console-like workflow
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@cvar ANSI_COLORS: Mapping of terminal colors to X11 names.
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@type ANSI_COLORS: dictionary
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@ivar text_buffer: Widget's text buffer.
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@type text_buffer: Gtk.TextBuffer
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@ivar color_pat: Regex of terminal color pattern
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@type color_pat: _sre.SRE_Pattern
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@ivar mark: Scroll mark for automatic scrolling on input.
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@type mark: Gtk.TextMark
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@ivar line_start: Start of command line mark.
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@type line_start: Gtk.TextMark
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"""
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ANSI_COLORS = {'0;30': 'Black', '0;31': 'Red',
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'0;32': 'Green', '0;33': 'Brown',
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'0;34': 'Blue', '0;35': 'Purple',
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'0;36': 'Cyan', '0;37': 'LightGray',
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'1;30': 'DarkGray', '1;31': 'DarkRed',
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'1;32': 'SeaGreen', '1;33': 'Yellow',
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'1;34': 'LightBlue', '1;35': 'MediumPurple',
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'1;36': 'LightCyan', '1;37': 'White'}
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def __init__(self):
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"""
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Initialize console view
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"""
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GObject.GObject.__init__(self)
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self.override_font(Pango.FontDescription('Mono'))
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self.set_cursor_visible(True)
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self.text_buffer = self.get_buffer()
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self.mark = self.text_buffer.create_mark('scroll_mark',
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self.text_buffer.get_end_iter(),
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False)
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for code in self.ANSI_COLORS:
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self.text_buffer.create_tag(code,
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foreground=self.ANSI_COLORS[code],
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weight=700)
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self.text_buffer.create_tag('0')
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self.text_buffer.create_tag('notouch', editable=False)
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self.color_pat = re.compile(r'\x01?\x1b\[(.*?)m\x02?')
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if HAS_IPYTHON5:
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self.style_dict = {
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Token.Prompt: '0;32',
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Token.PromptNum: '1;32',
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Token.OutPrompt: '0;31',
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Token.OutPromptNum: '1;31',
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}
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self.line_start = \
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self.text_buffer.create_mark('line_start',
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self.text_buffer.get_end_iter(), True)
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self.connect('key-press-event', self.onKeyPress)
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def write(self, text, editable=False):
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if isinstance(text, str):
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GLib.idle_add(self._write, text, editable)
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elif IPython.version_info[0] >= 5:
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GLib.idle_add(self._write5, text, editable)
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def _write5(self, text, editable=False):
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"""
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Write given text to buffer
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@param text: Text to append.
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@type text: list of (token: string)
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@param editable: If true, added text is editable.
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@type editable: boolean
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"""
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start_mark = self.text_buffer.create_mark(None,
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self.text_buffer.get_end_iter(),
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True)
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for token, segment in text:
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tag = self.style_dict[token]
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self.text_buffer.insert_with_tags_by_name(self.text_buffer.get_end_iter(),
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segment, tag)
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if not editable:
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self.text_buffer.apply_tag_by_name('notouch',
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self.text_buffer.get_iter_at_mark(start_mark),
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self.text_buffer.get_end_iter())
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self.text_buffer.delete_mark(start_mark)
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self.scroll_mark_onscreen(self.mark)
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def _write(self, text, editable=False):
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"""
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Write given text to buffer
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@param text: Text to append.
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@type text: string
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@param editable: If true, added text is editable.
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@type editable: boolean
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"""
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if isinstance(text, list) and IPython.version_info[0] >= 5:
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self._write5(text, editable)
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return
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segments = self.color_pat.split(text)
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segment = segments.pop(0)
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start_mark = self.text_buffer.create_mark(None,
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self.text_buffer.get_end_iter(),
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True)
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self.text_buffer.insert(self.text_buffer.get_end_iter(), segment)
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if segments:
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ansi_tags = self.color_pat.findall(text)
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for tag in ansi_tags:
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i = segments.index(tag)
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self.text_buffer.insert_with_tags_by_name(self.text_buffer.get_end_iter(),
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segments[i+1], str(tag))
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segments.pop(i)
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if not editable:
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self.text_buffer.apply_tag_by_name('notouch',
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self.text_buffer.get_iter_at_mark(start_mark),
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self.text_buffer.get_end_iter())
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self.text_buffer.delete_mark(start_mark)
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self.scroll_mark_onscreen(self.mark)
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def showPrompt(self, prompt):
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GLib.idle_add(self._showPrompt, prompt)
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def _showPrompt(self, prompt):
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"""
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Print prompt at start of line
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@param prompt: Prompt to print.
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@type prompt: string
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"""
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self._write(prompt)
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self.text_buffer.move_mark(self.line_start,
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self.text_buffer.get_end_iter())
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def changeLine(self, text):
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GLib.idle_add(self._changeLine, text)
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def _changeLine(self, text):
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"""
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Replace currently entered command line with given text
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@param text: Text to use as replacement.
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@type text: string
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"""
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iter_ = self.text_buffer.get_iter_at_mark(self.line_start)
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iter_.forward_to_line_end()
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self.text_buffer.delete(self.text_buffer.get_iter_at_mark(self.line_start), iter_)
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self._write(text, True)
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def getCurrentLine(self):
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"""
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Get text in current command line
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|
@return: Text of current command line.
|
|
@rtype: string
|
|
"""
|
|
rv = self.text_buffer.get_slice(
|
|
self.text_buffer.get_iter_at_mark(self.line_start),
|
|
self.text_buffer.get_end_iter(), False)
|
|
return rv
|
|
|
|
def showReturned(self, text):
|
|
GLib.idle_add(self._showReturned, text)
|
|
|
|
def _showReturned(self, text):
|
|
"""
|
|
Show returned text from last command and print new prompt
|
|
|
|
@param text: Text to show.
|
|
@type text: string
|
|
"""
|
|
iter_ = self.text_buffer.get_iter_at_mark(self.line_start)
|
|
iter_.forward_to_line_end()
|
|
self.text_buffer.apply_tag_by_name(
|
|
'notouch',
|
|
self.text_buffer.get_iter_at_mark(self.line_start),
|
|
iter_)
|
|
self._write('\n'+text)
|
|
if text:
|
|
self._write('\n')
|
|
self._showPrompt(self.prompt)
|
|
self.text_buffer.move_mark(self.line_start, self.text_buffer.get_end_iter())
|
|
self.text_buffer.place_cursor(self.text_buffer.get_end_iter())
|
|
|
|
if self.IP.rl_do_indent:
|
|
indentation = self.IP.input_splitter.indent_spaces * ' '
|
|
self.text_buffer.insert_at_cursor(indentation)
|
|
|
|
def onKeyPress(self, _widget, event):
|
|
"""
|
|
Key press callback used for correcting behavior for console-like
|
|
interfaces. For example 'home' should go to prompt, not to beginning of
|
|
line
|
|
|
|
@param widget: Widget that key press occurred in.
|
|
@type widget: Gtk.Widget
|
|
@param event: Event object
|
|
@type event: Gdk.Event
|
|
|
|
@return: Return True if event should not trickle.
|
|
@rtype: boolean
|
|
"""
|
|
insert_mark = self.text_buffer.get_insert()
|
|
insert_iter = self.text_buffer.get_iter_at_mark(insert_mark)
|
|
selection_mark = self.text_buffer.get_selection_bound()
|
|
selection_iter = self.text_buffer.get_iter_at_mark(selection_mark)
|
|
start_iter = self.text_buffer.get_iter_at_mark(self.line_start)
|
|
if event.keyval == Gdk.KEY_Home:
|
|
if event.get_state() == 0:
|
|
self.text_buffer.place_cursor(start_iter)
|
|
return True
|
|
if event.get_state() == Gdk.ModifierType.SHIFT_MASK:
|
|
self.text_buffer.move_mark(insert_mark, start_iter)
|
|
return True
|
|
|
|
if event.keyval == Gdk.KEY_Left:
|
|
insert_iter.backward_cursor_position()
|
|
if not insert_iter.editable(True):
|
|
return True
|
|
elif not event.string:
|
|
pass
|
|
elif start_iter.compare(insert_iter) <= 0 and \
|
|
start_iter.compare(selection_iter) <= 0:
|
|
pass
|
|
elif start_iter.compare(insert_iter) > 0 and \
|
|
start_iter.compare(selection_iter) > 0:
|
|
self.text_buffer.place_cursor(start_iter)
|
|
elif insert_iter.compare(selection_iter) < 0:
|
|
self.text_buffer.move_mark(insert_mark, start_iter)
|
|
elif insert_iter.compare(selection_iter) > 0:
|
|
self.text_buffer.move_mark(selection_mark, start_iter)
|
|
|
|
return self.onKeyPressExtend(event)
|
|
|
|
def onKeyPressExtend(self, event):
|
|
"""
|
|
For some reason we can't extend onKeyPress directly (bug #500900)
|
|
"""
|
|
|
|
class IPythonView(ConsoleView, IterableIPShell):
|
|
'''
|
|
Sub-class of both modified IPython shell and L{ConsoleView} this makes
|
|
a GTK+ IPython console.
|
|
'''
|
|
def __init__(self):
|
|
"""
|
|
Initialize. Redirect I/O to console
|
|
"""
|
|
ConsoleView.__init__(self)
|
|
self.cout = StringIO()
|
|
IterableIPShell.__init__(self, cout=self.cout, cerr=self.cout,
|
|
input_func=self.raw_input)
|
|
if HAS_IPYTHON5:
|
|
displayhook = MyPromptDisplayHook(shell=self.IP, view=self)
|
|
self.IP.displayhook = displayhook
|
|
self.IP.display_trap = DisplayTrap(hook=displayhook)
|
|
# self.connect('key_press_event', self.keyPress)
|
|
self.interrupt = False
|
|
self.execute()
|
|
self.prompt = self.generatePrompt(False)
|
|
self.cout.truncate(0)
|
|
self.showPrompt(self.prompt)
|
|
|
|
def prompt_for_code(self):
|
|
# IPython 5.0 calls prompt_for_code instead of raw_input
|
|
return self.raw_input(self)
|
|
|
|
def raw_input(self, _prompt=''):
|
|
"""
|
|
Custom raw_input() replacement. Get's current line from console buffer
|
|
|
|
@param prompt: Prompt to print. Here for compatibility as replacement.
|
|
@type prompt: string
|
|
|
|
@return: The current command line text.
|
|
@rtype: string
|
|
"""
|
|
if self.interrupt:
|
|
self.interrupt = False
|
|
raise KeyboardInterrupt
|
|
return self.getCurrentLine()
|
|
|
|
def onKeyPressExtend(self, event):
|
|
"""
|
|
Key press callback with plenty of shell goodness, like history,
|
|
autocompletions, etc
|
|
|
|
@param widget: Widget that key press occurred in.
|
|
@type widget: Gtk.Widget
|
|
@param event: Event object.
|
|
@type event: Gdk.Event
|
|
|
|
@return: True if event should not trickle.
|
|
@rtype: boolean
|
|
"""
|
|
if event.get_state() & Gdk.ModifierType.CONTROL_MASK and event.keyval == 99:
|
|
self.interrupt = True
|
|
self._processLine()
|
|
return True
|
|
if event.keyval == Gdk.KEY_Return:
|
|
self._processLine()
|
|
return True
|
|
if event.keyval == Gdk.KEY_Up:
|
|
self.changeLine(self.historyBack())
|
|
return True
|
|
if event.keyval == Gdk.KEY_Down:
|
|
self.changeLine(self.historyForward())
|
|
return True
|
|
if event.keyval == Gdk.KEY_Tab:
|
|
if not self.getCurrentLine().strip():
|
|
return False
|
|
completed, possibilities = self.complete(self.getCurrentLine())
|
|
if len(possibilities) > 1:
|
|
slice_ = self.getCurrentLine()
|
|
self.write('\n')
|
|
for symbol in possibilities:
|
|
self.write(symbol+'\n')
|
|
self.showPrompt(self.prompt)
|
|
self.changeLine(completed or slice_)
|
|
return True
|
|
|
|
def _processLine(self):
|
|
"""
|
|
Process current command line
|
|
"""
|
|
self.history_pos = 0
|
|
self.execute()
|
|
rv = self.cout.getvalue()
|
|
if rv:
|
|
rv = rv.strip('\n')
|
|
self.showReturned(rv)
|
|
self.cout.truncate(0)
|
|
self.cout.seek(0)
|