import FreeCAD import FreeCADGui as Gui import subprocess import PySide import re from PySide import QtGui from PySide import QtCore import XternalAppsList from MyX11Utils import * #class MyMdiSubWindow(QMdiSubWindow): # def closeEvent class EmbeddedWindow(QtCore.QObject): def __init__(self, app, externalAppInstance, processId, windowId): super(EmbeddedWindow, self).__init__() self.app = app self.externalAppInstance = externalAppInstance self.processId = processId self.windowId = windowId self.mdi = Gui.getMainWindow().findChild(QtGui.QMdiArea) self.xw = QtGui.QWindow.fromWinId(self.windowId) self.xw.setFlags(QtGui.Qt.FramelessWindowHint) self.xwd = QtGui.QWidget.createWindowContainer(self.xw) self.mwx = QtGui.QMainWindow() #self.mwx.layout().addWidget(self.xwd) self.mwx.setCentralWidget(self.xwd) self.mdiSub = self.mdi.addSubWindow(self.xwd) self.xwd.setBaseSize(640,480) self.mwx.setBaseSize(640,480) self.mdiSub.setBaseSize(640,480) self.mdiSub.setWindowTitle(app.name) self.mdiSub.show() self.xwd.installEventFilter(self) self.mwx.installEventFilter(self) self.mdiSub.installEventFilter(self) self.timer = QtCore.QTimer(self) self.timer.timeout.connect(self.pollWindowClosed) self.timer.start(1000) def eventFilter(self, obj, event): # This doesn't seem to work, some events occur but no the close one. if event.type() == QtCore.QEvent.Close and x11stillAlive(self.windowId): #xdotool closes the window without asking for confirmation #subprocess.Popen(['xdotool', 'windowclose', str(self.windowId)]) # use decode('utf-8', 'ignore') to use strings instead of # byte strings and discard ill-formed unicode in case this # tool doesn't sanitize their output xwininfo_output = subprocess.check_output(['xwininfo', '-root', '-int']).decode('utf-8', 'ignore').split('\n') root_id = None for line in xwininfo_output: match = re.compile(r'^xwininfo: Window id: ([0-9]+)').match(line) if match: root_id = match.group(1) break if root_id is not None: # detach subprocess.Popen(['xdotool', 'windowreparent', str(self.windowId), root_id]) # send friendly close signal subprocess.Popen(['wmctrl', '-i', '-c', str(self.windowId)]) # Cleanup # TODO: destroy self.xw and .xwd if possible to avoid a leak self.xw.setParent(None) self.xwd.setParent(None) self.timer.stop() # remove from dictionary of found windows self.externalAppInstance.foundWindows.pop(self.windowId, None) # avoid GC self.externalAppInstance.closedWindows[self.windowId] = self # re-attach in case it didn't close (confirmation dialog etc.) print('waitForWindow') self.externalAppInstance.waitForWindow() # try: # self.xw = QtGui.QWindow.fromWinId(self.windowId) # self.xwd = QtGui.QWidget.createWindowContainer(self.xw) # self.mwx.setCentralWidget(self.xwd) # except Exception as e: # print(repr(e)) # pass else: event.ignore() return True else: return False @QtCore.Slot() def pollWindowClosed(self): # TODO: find an event instead of polling if not x11stillAlive(self.windowId) and not deleted(self.mdiSub): self.mdiSub.close() self.timer.stop() # TODO: also kill or at least detach on application exit # "" : xwininfo_re = re.compile(r'^\s*([0-9]+)\s*"[^"]*"\s*:.*$') def try_pipe_lines(commandAndArguments): try: # use decode('utf-8', 'ignore') to use strings instead of # byte strings and discard ill-formed unicode in case this # tool doesn't sanitize their output return subprocess.check_output(commandAndArguments).decode('utf-8', 'ignore').split('\n') except: return [] # TODO: this is just a quick & dirty way to attach a field to the FreeCad object class XternalApps(): def __init__(self): setattr(FreeCAD, 'XternalApps', self) def deleted(widget): """Detect RuntimeError: Internal C++ object (PySide2.QtGui.QWindow) already deleted.""" try: str(widget) # str fails on already-deleted Qt wrappers. return False except: return True class ExternalAppInstance(QtCore.QObject): def __init__(self, appName): super(ExternalAppInstance, self).__init__() self.app = XternalAppsList.apps[appName] # Start the application # TODO: popen_process shouldn't be exposed to in-document scripts, it would allow them to redirect output etc. print('Starting ' + ' '.join(self.app.start_command_and_args)) self.popen_process = subprocess.Popen(self.app.start_command_and_args) self.appProcessIds = [self.popen_process.pid] self.initWaitForWindow() self.foundWindows = dict() self.closedWindows = dict() setattr(FreeCAD.XternalApps, self.app.name, self) def initWaitForWindow(self): self.TimeoutHasOccurred = False # for other scritps to know the status self.startupTimeout = 10000 self.elapsed = QtCore.QElapsedTimer() self.elapsed.start() self.timer = QtCore.QTimer(self) self.timer.timeout.connect(self.attemptToFindWindow) def waitForWindow(self): self.timer.start(50) @QtCore.Slot() def attemptToFindWindow(self): try: self.attemptToFindWindowWrapped() except: self.timer.stop() raise def attemptToFindWindowWrapped(self): for line in try_pipe_lines(['xwininfo', '-root', '-tree', '-int']): self.attemptWithLine(line) if self.elapsed.elapsed() > self.startupTimeout: self.timer.stop() self.TimeoutHasOccurred = True def attemptWithLine(self, line): if not self.app.xwininfo_filter_re.search(line): return xwininfo_re_match_line = xwininfo_re.match(line) if not xwininfo_re_match_line: return windowId = int(xwininfo_re_match_line.group(1)) xprop_try_process_id = x11prop(windowId, '_NET_WM_PID', 'CARDINAL') if not xprop_try_process_id: return processId = int(xprop_try_process_id) # TODO try parse int and catch failure if processId not in self.appProcessIds: return if not self.app.extra_xprop_filter(processId, windowId, len(self.foundWindows)): return self.foundWindow(processId, windowId) def foundWindow(self, processId, windowId): print('found ' + str(windowId)) if windowId not in self.foundWindows.keys(): self.foundWindows[windowId] = EmbeddedWindow(self.app, self, processId, windowId) # for w in self.foundWindows.values(): # #if not deleted(xw) and not xw.isActive(): # if not x11stillAlive(w.windowId): # w.mdiSub.close()