pesterchum/console.py

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# vim: set autoindent ts=4 softtabstop=4 shiftwidth=4 textwidth=79 expandtab:
# -*- coding=UTF-8; tab-width: 4 -*-
from PyQt4 import QtGui, QtCore
import re, os, traceback, sys
import time, datetime
from os import remove
import dataobjs, generic, memos, parsetools, ostools
from version import _pcVersion
_datadir = ostools.getDataDir()
import logging
logging.basicConfig(level=logging.WARNING)
class ConsoleWindow(QtGui.QDialog):
# A simple console class, cobbled together from the corpse of another.
textArea = None
textInput = None
history = None
# I should probably put up constants for 'direction' if this is going to
# get this complicated. TODO!
incoming_prefix = "<<<"
outgoing_prefix = ">>>"
neutral_prefix = "!!!"
waiting_prefix = "..."
def __init__(self, parent):
super(ConsoleWindow, self).__init__(parent)
self.prnt = parent
try:
self.mainwindow = parent.mainwindow
except:
self.mainwindow = parent
theme = self.mainwindow.theme
# Set up our style/window specifics
self.setStyleSheet(theme["main/defaultwindow/style"])
self.setWindowTitle("==> Console")
self.resize(350,300)
self.textArea = ConsoleText(theme, self)
self.textInput = ConsoleInput(theme, self)
self.textInput.setFocus()
self.connect(self.textInput, QtCore.SIGNAL('returnPressed()'),
self, QtCore.SLOT('sentMessage()'))
self.chumopen = True
self.chum = self.mainwindow.profile()
self.history = dataobjs.PesterHistory()
# For backing these up
self.stdout = self.stderr = None
layout_0 = QtGui.QVBoxLayout()
layout_0.addWidget(self.textArea)
layout_0.addWidget(self.textInput)
self.setLayout(layout_0)
def parent(self):
return self.prnt
def clearNewMessage(self):
pass
@QtCore.pyqtSlot()
def sentMessage(self):
text = self.textInput.text()
# TODO: Make this deal with unicode text, it'll crash and burn as-is.
text = str(text)
text = text.rstrip()
self.history.add(text)
self.textInput.setText("")
self.execInConsole(text)
# Scroll down to the bottom so we can see the results.
sb = self.textArea.verticalScrollBar()
sb.setValue(sb.maximum())
def addTraceback(self, tb=None):
# We should do the formatting here, but eventually pass it to textArea
# to addMessage whatever output we produced.
# If we're called by addMessage - and we should be - then sys.stdout is
# still being redirected into the console.
# TODO: Just make an object for setting contexts (and thus optionally
# redirecting prints). Use 'with', of course.
# TODO: Make this exclude *our* processing from the traceback stack.
try:
self.addMessage(traceback.format_exc(), direction=0)
except Exception as err:
logging.error("Failed to display error message (???): %s" % err)
def addMessage(self, msg, direction):
# Redirect to where these things belong.
self.textArea.addMessage(msg, direction=direction)
def closeEvent(self, event):
# TODO: Set up ESC to close the console...or refer to hiding it as
# closing it. Not sure which is preferable.
parent = self.parent()
parent.console.is_open = False
parent.console.window = None
# Actual console stuff.
def execInConsole(self, scriptstr, env=None):
# Since that's what imports *us*, this should be okay
# Tab completion could be set up in ConsoleInput, and would be nice
import pesterchum as pchum
if env is None:
env = pchum._retrieveGlobals()
# Modify the environment the script will execute in.
# NOTE: This doesn't presently work, for some reason.
_CUSTOM_ENV = {
"CONSOLE": self,
"MAINWIN": self.mainwindow,
"PCONFIG": self.mainwindow.config
}
for k in _CUSTOM_ENV:
if k not in env:
# Don't overwrite anything!
env[k] = _CUSTOM_ENV[k]
else:
warn = "Console environment item {!r} already exists in main."
warn.format(k)
logging.warning(warn)
# Display the input we provided
self.addMessage(scriptstr, 1)
# Replace the old writer (for now)
sysout, sys.stdout = sys.stdout, self
try:
code = compile(scriptstr + '\n', "<string>", "single")
result = eval(code, env)
except:
# Something went wrong.
#~logging.exception("Exception: %s", err, exc_info=sys.exc_info())
self.addTraceback(sys.exc_info()[2])
else:
# No errors.
if result is not None:
#~self.addMessage(repr(result), -1)
print repr(result)
finally:
# Restore system output.
sys.stdout = sysout
# Try to clean us out of globals - this might be disabled
# later.
for k in _CUSTOM_ENV:
# Remove the key we added.
env.pop(k, None)
def write(self, data):
# Replaces sys.stdout briefly
# We only ever use this for receiving, so it's safe to assume the
# direction is always -1.
if not isinstance(data, list):
data = data.split('\n')
for line in data:
if len(line):
self.addMessage(line, -1)
class ConsoleText(QtGui.QTextEdit):
def __init__(self, theme, parent=None):
super(ConsoleText, self).__init__(parent)
if hasattr(self.parent(), 'mainwindow'):
self.mainwindow = self.parent().mainwindow
else:
self.mainwindow = self.parent()
self.hasTabs = False
self.initTheme(theme)
self.setReadOnly(True)
self.setMouseTracking(True)
self.textSelected = False
self.connect(self, QtCore.SIGNAL('copyAvailable(bool)'),
self, QtCore.SLOT('textReady(bool)'))
self.urls = {}
# Stripped out animation init - it's all cruft to us.
@QtCore.pyqtSlot(bool)
def textReady(self, ready):
self.textSelected = ready
def initTheme(self, theme):
if theme.has_key("convo/scrollbar"):
self.setStyleSheet("QTextEdit { %s } QScrollBar:vertical { %s } QScrollBar::handle:vertical { %s } QScrollBar::add-line:vertical { %s } QScrollBar::sub-line:vertical { %s } QScrollBar:up-arrow:vertical { %s } QScrollBar:down-arrow:vertical { %s }" % (theme["convo/textarea/style"], theme["convo/scrollbar/style"], theme["convo/scrollbar/handle"], theme["convo/scrollbar/downarrow"], theme["convo/scrollbar/uparrow"], theme["convo/scrollbar/uarrowstyle"], theme["convo/scrollbar/darrowstyle"] ))
else:
self.setStyleSheet("QTextEdit { %s }" % (theme["convo/textarea/style"]))
def addMessage(self, msg, direction):
# Display a message we've received.
# Direction > 0 == out (sent by us); < 0 == in (sent by script).
if len(msg) == 0:
return
#~color = chum.colorcmd()
#~initials = chum.initials()
parent = self.parent()
mwindow = parent.mainwindow
systemColor = QtGui.QColor(mwindow.theme["convo/systemMsgColor"])
if mwindow.config.showTimeStamps():
if mwindow.config.time12Format():
timestamp = time.strftime("[%I:%M")
else:
timestamp = time.strftime("[%H:%M")
if mwindow.config.showSeconds():
timestamp += time.strftime(":%S] ")
else:
timestamp += "] "
else:
timestamp = ""
# Figure out what prefix to use.
if direction > 0:
# Outgoing.
prefix = parent.outgoing_prefix
elif direction < 0:
# Incoming.
prefix = parent.incoming_prefix
elif direction == 0:
# We could just 'else' here, but there might be some oddness later.
prefix = parent.neutral_prefix
# Later, this will have to escape things so we don't parse them,
# likely...hm.
#~result = "<span style=\"color:#000000\">{} {} {!r}</span>"
# The input we get is already repr'd...we pass it via print, and thus
# do that there.
result = "{}{} {}\n"
result = result.format(timestamp, prefix, msg)
#~self.append(result)
self.insertPlainText(result)
# Direction doesn't matter here - it's the console.
self.lastmsg = datetime.datetime.now()
# This needs to finish being rewritten....
def changeTheme(self, theme):
self.initTheme(theme)
sb = self.verticalScrollBar()
sb.setValue(sb.maximum())
def focusInEvent(self, event):
self.parent().clearNewMessage()
super(ConsoleText, self).focusInEvent(event)
def keyPressEvent(self, event):
# NOTE: This doesn't give focus to the input bar, which it probably
# should.
# karxi: Test for tab changing?
if hasattr(self.parent(), 'textInput'):
if event.key() not in (QtCore.Qt.Key_PageUp, QtCore.Qt.Key_PageDown,
QtCore.Qt.Key_Up, QtCore.Qt.Key_Down):
self.parent().textInput.keyPressEvent(event)
super(ConsoleText, self).keyPressEvent(event)
def mousePressEvent(self, event):
if event.button() == QtCore.Qt.LeftButton:
url = self.anchorAt(event.pos())
if url != "":
# Skip memo/handle recognition
# NOTE: Ctrl+Click copies the URL. Maybe it should select it?
if event.modifiers() == QtCore.Qt.ControlModifier:
QtGui.QApplication.clipboard().setText(url)
else:
# This'll probably be removed. May change the lexer out.
QtGui.QDesktopServices.openUrl(QtCore.QUrl(url, QtCore.QUrl.TolerantMode))
super(ConsoleText, self).mousePressEvent(event)
def mouseMoveEvent(self, event):
# Change our cursor when we roll over links (anchors).
super(ConsoleText, self).mouseMoveEvent(event)
if self.anchorAt(event.pos()):
if self.viewport().cursor().shape != QtCore.Qt.PointingHandCursor:
self.viewport().setCursor(QtGui.QCursor(QtCore.Qt.PointingHandCursor))
else:
self.viewport().setCursor(QtGui.QCursor(QtCore.Qt.IBeamCursor))
def contextMenuEvent(self, event):
# This is almost certainly no longer necessary.
textMenu = self.createStandardContextMenu()
#~if self.textSelected:
#~ self.submitLogAction = QtGui.QAction("Submit to Pesterchum QDB", self)
#~ self.connect(self.submitLogAction, QtCore.SIGNAL('triggered()'),
#~ self, QtCore.SLOT('submitLog()'))
#~ textMenu.addAction(self.submitLogAction)
textMenu.exec_(event.globalPos())
class ConsoleInput(QtGui.QLineEdit):
"""The actual text entry box on a ConsoleWindow."""
# I honestly feel like this could just be made a private class of
# ConsoleWindow, but...best not to overcomplicate things.
stylesheet_path = "convo/input/style"
def __init__(self, theme, parent=None):
super(ConsoleInput, self).__init__(parent)
self.changeTheme(theme)
def changeTheme(self, theme):
self.setStyleSheet(theme[self.stylesheet_path])
def focusInEvent(self, event):
# We gained focus. Notify the parent window that this happened.
self.parent().clearNewMessage()
self.parent().textArea.textCursor().clearSelection()
super(ConsoleInput, self).focusInEvent(event)
def keyPressEvent(self, event):
evtkey = event.key()
parent = self.parent()
# If a key is pressed here, we're not idle....
# NOTE: Do we really want everyone knowing we're around if we're
# messing around in the console? Hm.
parent.mainwindow.idler.time = 0
if evtkey == QtCore.Qt.Key_Up:
text = unicode(self.text())
next = parent.history.next(text)
if next is not None:
self.setText(next)
elif evtkey == QtCore.Qt.Key_Down:
prev = parent.history.prev()
if prev is not None:
self.setText(prev)
elif evtkey in (QtCore.Qt.Key_PageUp, QtCore.Qt.Key_PageDown):
parent.textArea.keyPressEvent(event)
else:
super(ConsoleInput, self).keyPressEvent(event)