84 lines
2.7 KiB
Python
84 lines
2.7 KiB
Python
# Copyright 2014 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
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#
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# This file is part of qutebrowser.
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#
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# qutebrowser 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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# qutebrowser 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 qutebrowser. If not, see <http://www.gnu.org/licenses/>.
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"""Parse keypresses/keychains in the main window.
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Module attributes:
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STARTCHARS: Possible chars for starting a commandline input.
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"""
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import logging
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from PyQt5.QtCore import pyqtSignal
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import qutebrowser.utils.message as message
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from qutebrowser.keyinput.keyparser import KeyParser
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from qutebrowser.commands.parsers import (CommandParser, ArgumentCountError,
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NoSuchCommandError)
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STARTCHARS = ":/?"
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class CommandKeyParser(KeyParser):
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"""KeyChainParser for command bindings.
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Attributes:
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commandparser: Commandparser instance.
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"""
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def __init__(self, parent=None):
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super().__init__(parent, supports_count=True, supports_chains=True)
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self.commandparser = CommandParser()
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self.read_config('keybind')
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def _run_or_fill(self, cmdstr, count=None, ignore_exc=True):
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"""Run the command in cmdstr or fill the statusbar if args missing.
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Args:
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cmdstr: The command string.
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count: Optional command count.
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ignore_exc: Ignore exceptions.
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"""
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try:
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self.commandparser.run(cmdstr, count=count, ignore_exc=ignore_exc)
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except NoSuchCommandError:
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pass
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except ArgumentCountError:
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logging.debug('Filling statusbar with partial command {}'.format(
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cmdstr))
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message.set_cmd_text(':{} '.format(cmdstr))
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def _handle_single_key(self, e):
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"""Override _handle_single_key to abort if the key is a startchar.
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Args:
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e: the KeyPressEvent from Qt.
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Return:
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True if event has been handled, False otherwise.
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"""
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txt = e.text().strip()
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if not self._keystring and any(txt == c for c in STARTCHARS):
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message.set_cmd_text(txt)
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return True
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return super()._handle_single_key(e)
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def execute(self, cmdstr, count=None):
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"""Handle a completed keychain."""
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self._run_or_fill(cmdstr, count, ignore_exc=False)
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