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# -*- test-case-name: twisted.manhole.ui.test.test_gtk2manhole -*- # Copyright (c) 2001-2009 Twisted Matrix Laboratories. # See LICENSE for details.
""" Manhole client with a GTK v2.x front-end. """
__version__ = '$Revision: 1.9 $'[11:-2]
from twisted import copyright from twisted.internet import reactor from twisted.python import components, failure, log, util from twisted.python.reflect import prefixedMethodNames from twisted.spread import pb from twisted.spread.ui import gtk2util
from twisted.manhole.service import IManholeClient from zope.interface import implements
# The pygtk.require for version 2.0 has already been done by the reactor. import gtk
import code, types, inspect
# TODO: # Make wrap-mode a run-time option. # Explorer. # Code doesn't cleanly handle opening a second connection. Fix that. # Make some acknowledgement of when a command has completed, even if # it has no return value so it doesn't print anything to the console.
class OfflineError(Exception): pass
class ManholeWindow(components.Componentized, gtk2util.GladeKeeper): gladefile = util.sibpath(__file__, "gtk2manhole.glade")
_widgets = ('input','output','manholeWindow')
def __init__(self): self.defaults = {} gtk2util.GladeKeeper.__init__(self) components.Componentized.__init__(self)
self.input = ConsoleInput(self._input) self.input.toplevel = self self.output = ConsoleOutput(self._output)
# Ugh. GladeKeeper actually isn't so good for composite objects. # I want this connected to the ConsoleInput's handler, not something # on this class. self._input.connect("key_press_event", self.input._on_key_press_event)
def setDefaults(self, defaults): self.defaults = defaults
def login(self): client = self.getComponent(IManholeClient) d = gtk2util.login(client, **self.defaults) d.addCallback(self._cbLogin) d.addCallback(client._cbLogin) d.addErrback(self._ebLogin)
def _cbDisconnected(self, perspective): self.output.append("%s went away. :(\n" % (perspective,), "local") self._manholeWindow.set_title("Manhole")
def _cbLogin(self, perspective): peer = perspective.broker.transport.getPeer() self.output.append("Connected to %s\n" % (peer,), "local") perspective.notifyOnDisconnect(self._cbDisconnected) self._manholeWindow.set_title("Manhole - %s" % (peer)) return perspective
def _ebLogin(self, reason): self.output.append("Login FAILED %s\n" % (reason.value,), "exception")
def _on_aboutMenuItem_activate(self, widget, *unused): import sys from os import path self.output.append("""\ a Twisted Manhole client Versions: %(twistedVer)s Python %(pythonVer)s on %(platform)s GTK %(gtkVer)s / PyGTK %(pygtkVer)s %(module)s %(modVer)s http://twistedmatrix.com/ """ % {'twistedVer': copyright.longversion, 'pythonVer': sys.version.replace('\n', '\n '), 'platform': sys.platform, 'gtkVer': ".".join(map(str, gtk.gtk_version)), 'pygtkVer': ".".join(map(str, gtk.pygtk_version)), 'module': path.basename(__file__), 'modVer': __version__, }, "local")
def _on_openMenuItem_activate(self, widget, userdata=None): self.login()
def _on_manholeWindow_delete_event(self, widget, *unused): reactor.stop()
def _on_quitMenuItem_activate(self, widget, *unused): reactor.stop()
def on_reload_self_activate(self, *unused): from twisted.python import rebuild rebuild.rebuild(inspect.getmodule(self.__class__))
tagdefs = { 'default': {"family": "monospace"}, # These are message types we get from the server. 'stdout': {"foreground": "black"}, 'stderr': {"foreground": "#AA8000"}, 'result': {"foreground": "blue"}, 'exception': {"foreground": "red"}, # Messages generate locally. 'local': {"foreground": "#008000"}, 'log': {"foreground": "#000080"}, 'command': {"foreground": "#666666"}, }
# TODO: Factor Python console stuff back out to pywidgets.
class ConsoleOutput: _willScroll = None def __init__(self, textView): self.textView = textView self.buffer = textView.get_buffer()
# TODO: Make this a singleton tag table. for name, props in tagdefs.iteritems(): tag = self.buffer.create_tag(name) # This can be done in the constructor in newer pygtk (post 1.99.14) for k, v in props.iteritems(): tag.set_property(k, v)
self.buffer.tag_table.lookup("default").set_priority(0)
self._captureLocalLog()
def _captureLocalLog(self): return log.startLogging(_Notafile(self, "log"), setStdout=False)
def append(self, text, kind=None): # XXX: It seems weird to have to do this thing with always applying # a 'default' tag. Can't we change the fundamental look instead? tags = ["default"] if kind is not None: tags.append(kind)
self.buffer.insert_with_tags_by_name(self.buffer.get_end_iter(), text, *tags) # Silly things, the TextView needs to update itself before it knows # where the bottom is. if self._willScroll is None: self._willScroll = gtk.idle_add(self._scrollDown)
def _scrollDown(self, *unused): self.textView.scroll_to_iter(self.buffer.get_end_iter(), 0, True, 1.0, 1.0) self._willScroll = None return False
class History: def __init__(self, maxhist=10000): self.ringbuffer = [''] self.maxhist = maxhist self.histCursor = 0
def append(self, htext): self.ringbuffer.insert(-1, htext) if len(self.ringbuffer) > self.maxhist: self.ringbuffer.pop(0) self.histCursor = len(self.ringbuffer) - 1 self.ringbuffer[-1] = ''
def move(self, prevnext=1): ''' Return next/previous item in the history, stopping at top/bottom. ''' hcpn = self.histCursor + prevnext if hcpn >= 0 and hcpn < len(self.ringbuffer): self.histCursor = hcpn return self.ringbuffer[hcpn] else: return None
def histup(self, textbuffer): if self.histCursor == len(self.ringbuffer) - 1: si, ei = textbuffer.get_start_iter(), textbuffer.get_end_iter() self.ringbuffer[-1] = textbuffer.get_text(si,ei) newtext = self.move(-1) if newtext is None: return textbuffer.set_text(newtext)
def histdown(self, textbuffer): newtext = self.move(1) if newtext is None: return textbuffer.set_text(newtext)
class ConsoleInput: toplevel, rkeymap = None, None __debug = False
def __init__(self, textView): self.textView=textView self.rkeymap = {} self.history = History() for name in prefixedMethodNames(self.__class__, "key_"): keysymName = name.split("_")[-1] self.rkeymap[getattr(gtk.keysyms, keysymName)] = keysymName
def _on_key_press_event(self, entry, event): stopSignal = False ksym = self.rkeymap.get(event.keyval, None)
mods = [] for prefix, mask in [('ctrl', gtk.gdk.CONTROL_MASK), ('shift', gtk.gdk.SHIFT_MASK)]: if event.state & mask: mods.append(prefix)
if mods: ksym = '_'.join(mods + [ksym])
if ksym: rvalue = getattr( self, 'key_%s' % ksym, lambda *a, **kw: None)(entry, event)
if self.__debug: print ksym return rvalue
def getText(self): buffer = self.textView.get_buffer() iter1, iter2 = buffer.get_bounds() text = buffer.get_text(iter1, iter2, False) return text
def setText(self, text): self.textView.get_buffer().set_text(text)
def key_Return(self, entry, event): text = self.getText() # Figure out if that Return meant "next line" or "execute." try: c = code.compile_command(text) except SyntaxError, e: # This could conceivably piss you off if the client's python # doesn't accept keywords that are known to the manhole's # python. point = buffer.get_iter_at_line_offset(e.lineno, e.offset) buffer.place(point) # TODO: Componentize! self.toplevel.output.append(str(e), "exception") except (OverflowError, ValueError), e: self.toplevel.output.append(str(e), "exception") else: if c is not None: self.sendMessage() # Don't insert Return as a newline in the buffer. self.history.append(text) self.clear() # entry.emit_stop_by_name("key_press_event") return True else: # not a complete code block return False
return False
def key_Up(self, entry, event): # if I'm at the top, previous history item. textbuffer = self.textView.get_buffer() if textbuffer.get_iter_at_mark(textbuffer.get_insert()).get_line() == 0: self.history.histup(textbuffer) return True return False
def key_Down(self, entry, event): textbuffer = self.textView.get_buffer() if textbuffer.get_iter_at_mark(textbuffer.get_insert()).get_line() == ( textbuffer.get_line_count() - 1): self.history.histdown(textbuffer) return True return False
key_ctrl_p = key_Up key_ctrl_n = key_Down
def key_ctrl_shift_F9(self, entry, event): if self.__debug: import pdb; pdb.set_trace()
def clear(self): buffer = self.textView.get_buffer() buffer.delete(*buffer.get_bounds())
def sendMessage(self): buffer = self.textView.get_buffer() iter1, iter2 = buffer.get_bounds() text = buffer.get_text(iter1, iter2, False) self.toplevel.output.append(pythonify(text), 'command') # TODO: Componentize better! try: return self.toplevel.getComponent(IManholeClient).do(text) except OfflineError: self.toplevel.output.append("Not connected, command not sent.\n", "exception")
def pythonify(text): ''' Make some text appear as though it was typed in at a Python prompt. ''' lines = text.split('\n') lines[0] = '>>> ' + lines[0] return '\n... '.join(lines) + '\n'
class _Notafile: """Curry to make failure.printTraceback work with the output widget.""" def __init__(self, output, kind): self.output = output self.kind = kind
def write(self, txt): self.output.append(txt, self.kind)
def flush(self): pass
class ManholeClient(components.Adapter, pb.Referenceable): implements(IManholeClient)
capabilities = { # "Explorer": 'Set', "Failure": 'Set' }
def _cbLogin(self, perspective): self.perspective = perspective perspective.notifyOnDisconnect(self._cbDisconnected) return perspective
def remote_console(self, messages): for kind, content in messages: if isinstance(content, types.StringTypes): self.original.output.append(content, kind) elif (kind == "exception") and isinstance(content, failure.Failure): content.printTraceback(_Notafile(self.original.output, "exception")) else: self.original.output.append(str(content), kind)
def remote_receiveExplorer(self, xplorer): pass
def remote_listCapabilities(self): return self.capabilities
def _cbDisconnected(self, perspective): self.perspective = None
def do(self, text): if self.perspective is None: raise OfflineError return self.perspective.callRemote("do", text)
components.registerAdapter(ManholeClient, ManholeWindow, IManholeClient)
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