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cmdui: self.thread can be None

Changeset 4bf49be33756…

Parent fdaf8e9990a1…

by Steve Borho

Changes to one file · Browse files at 4bf49be33756 Showing diff from parent fdaf8e9990a1 Diff from another changeset...

Change 1 of 1 Show Changes Only tortoisehg/​hgqt/​cmdui.py Stacked
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 # cmdui.py - A widget to execute Mercurial command for TortoiseHg  #  # Copyright 2010 Yuki KODAMA <endflow.net@gmail.com>  #  # This software may be used and distributed according to the terms of the  # GNU General Public License version 2, incorporated herein by reference.    from PyQt4.QtCore import Qt, QObject, pyqtSignal  from PyQt4.QtGui import QDialog, QDialogButtonBox, QLabel, QProgressBar  from PyQt4.QtGui import QTextBrowser, QHBoxLayout, QGridLayout, QMessageBox  from PyQt4.QtGui import QWidget, QVBoxLayout    from tortoisehg.util import hglib  from tortoisehg.hgqt.i18n import _, localgettext  from tortoisehg.hgqt import qtlib, thread    local = localgettext()    class ProgressMonitor(QWidget):     def __init__(self):   super(ProgressMonitor, self).__init__()     # main layout box   vbox = QVBoxLayout()   vbox.setContentsMargins(*(0,)*4)   self.setLayout(vbox)     ## status layout box   hbox = QHBoxLayout()   hbox.setContentsMargins(*(0,)*4)   vbox.addLayout(hbox)     self.status_label = QLabel()   hbox.addWidget(self.status_label, 1)     self.prog_label = QLabel()   hbox.addWidget(self.prog_label, 0, Qt.AlignRight)     ## progressbar   self.pbar = QProgressBar()   self.pbar.setTextVisible(False)   self.pbar.setMinimum(0)   vbox.addWidget(self.pbar)     # prepare to show   self.clear_progress()     ### Public Methods ###     def clear_progress(self):   self.pbar.setMaximum(100)   self.pbar.reset()   self.status_label.setText('')   self.prog_label.setText('')   self.inprogress = False     def fillup_progress(self):   """stick progress to full"""   self.clear_progress()   self.pbar.setValue(self.pbar.maximum())     def unknown_progress(self):   self.pbar.setMinimum(0)   self.pbar.setMaximum(0)     def set_text(self, text):   self.status_label.setText(text)    class Core(QObject):   """Core functionality for running Mercurial command.   Do not attempt to instantiate and use this directly.   """     commandStarted = pyqtSignal()   commandFinished = pyqtSignal(thread.DataWrapper)   commandCanceling = pyqtSignal()     def __init__(self):   super(Core, self).__init__()     self.thread = None   self.output_text = QTextBrowser()   self.output_text.document().setDefaultStyleSheet(qtlib.thgstylesheet)   self.pmon = None     ### Public Methods ###     def run(self, cmdline):   '''Execute Mercurial command'''   self.thread = thread.CmdThread(cmdline)   self.thread.started.connect(self.command_started)   self.thread.commandFinished.connect(self.command_finished)   self.thread.outputReceived.connect(self.output_received)   self.thread.errorReceived.connect(self.error_received)   if hasattr(self, 'pmon'):   self.thread.progressReceived.connect(self.progress_received)   self.thread.start()     def cancel(self):   '''Cancel running Mercurial command'''   self.thread.abort()   self.commandCanceling.emit()     def set_pmon(self, pmon):   self.pmon = pmon     def is_running(self): - return self.thread.isRunning() + return self.thread and self.thread.isRunning()     ### Private Method ###     def append_output(self, msg, style=''):   msg = msg.replace('\n', '<br />')   self.output_text.insertHtml('<font style="%s">%s</font>' % (style, msg))   max = self.output_text.verticalScrollBar().maximum()   self.output_text.verticalScrollBar().setSliderPosition(max)     ### Signal Handlers ###     def command_started(self):   if hasattr(self, 'pmon'):   self.pmon.set_text(_('Running...'))   self.pmon.unknown_progress()     self.commandStarted.emit()     def command_finished(self, wrapper):   if hasattr(self, 'pmon'):   ret = wrapper.data   if ret is None:   self.pmon.clear_progress()   if self.pmon.pbar.maximum() == 0: # busy indicator   if ret == 0: # finished successfully   self.pmon.fillup_progress()   else:   self.pmon.clear_progress()   if ret is None:   if self.thread.abortbyuser:   status = _('Terminated by user')   else:   status = _('Terminated')   else:   status = _('Finished')   self.pmon.set_text(status)     self.commandFinished.emit(wrapper)     def command_canceling(self):   if hasattr(self, 'pmon'):   self.pmon.set_text(_('Canceling...'))   self.pmon.unknown_progress()     self.commandCanceling.emit()     def output_received(self, wrapper):   msg, label = wrapper.data   msg = hglib.tounicode(msg)   msg = Qt.escape(msg)   style = qtlib.geteffect(label)   self.append_output(msg, style)     def error_received(self, wrapper):   msg, label = wrapper.data   msg = hglib.tounicode(msg)   msg = Qt.escape(msg)   style = qtlib.geteffect(label)   self.append_output(msg, style)     def progress_received(self, wrapper):   if self.thread.isFinished():   self.pmon.clear_progress()   return     counting = False   topic, item, pos, total, unit = wrapper.data   if pos is None:   self.pmon.clear_progress()   return   if total is None:   count = '%d' % pos   counting = True   else:   self.pmon.pbar.setMaximum(total)   self.pmon.pbar.setValue(pos)   count = '%d / %d' % (pos, total)   if unit:   count += ' ' + unit   self.pmon.prog_label.setText(hglib.tounicode(count))   if item:   status = '%s: %s' % (topic, item)   else:   status = local._('Status: %s') % topic   self.pmon.status_label.setText(hglib.tounicode(status))   self.pmon.inprogress = True     if not self.pmon.inprogress or counting:   # use indeterminate mode   self.pmon.pbar.setMinimum(0)    class Widget(QWidget):   """An embeddable widget for running Mercurial command"""     commandStarted = pyqtSignal()   commandFinished = pyqtSignal(thread.DataWrapper)   commandCanceling = pyqtSignal()     def __init__(self):   super(Widget, self).__init__()     self.core = Core()   self.core.commandStarted.connect(lambda: self.commandStarted.emit())   self.core.commandFinished.connect(lambda w: self.commandFinished.emit(w))   self.core.commandCanceling.connect(lambda: self.commandCanceling.emit())     # main layout grid   grid = QGridLayout()   grid.setSpacing(4)   grid.setContentsMargins(*(1,)*4)     ## status and progress labels   self.pmon = ProgressMonitor()   self.core.set_pmon(self.pmon)   grid.addWidget(self.pmon, 0, 0)     # command output area   grid.addWidget(self.core.output_text, 1, 0, 5, 0)   grid.setRowStretch(1, 1)     # widget setting   self.setLayout(grid)     # prepare to show   self.core.output_text.setHidden(True)     ### Public Methods ###     def run(self, cmdline):   self.core.run(cmdline)     def cancel(self):   self.core.cancel()     def show_output(self, visible):   self.core.output_text.setShown(visible)     def is_show_output(self):   return self.core.output_text.isVisible()    class Dialog(QDialog):   """A dialog for running random Mercurial command"""     commandStarted = pyqtSignal()   commandFinished = pyqtSignal(thread.DataWrapper)   commandCanceling = pyqtSignal()     def __init__(self, cmdline, parent=None):   super(Dialog, self).__init__(parent)   self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint)     self.core = Core()   self.core.commandFinished.connect(self.command_finished)   self.core.commandCanceling.connect(lambda: self.commandCanceling.emit())     # main layout grid   grid = QGridLayout()   grid.setSpacing(6)   grid.setContentsMargins(*(7,)*4)     ## status and progress labels   self.pmon = ProgressMonitor()   self.core.set_pmon(self.pmon)   grid.addWidget(self.pmon, 0, 0)     # command output area   grid.addWidget(self.core.output_text, 1, 0, 5, 0)   grid.setRowStretch(1, 1)     # bottom buttons   buttons = QDialogButtonBox()   self.cancel_btn = buttons.addButton(QDialogButtonBox.Cancel)   self.cancel_btn.clicked.connect(self.cancel_clicked)   self.close_btn = buttons.addButton(QDialogButtonBox.Close)   self.close_btn.clicked.connect(self.reject)   self.detail_btn = buttons.addButton(_('Detail'),   QDialogButtonBox.ResetRole)   self.detail_btn.setAutoDefault(False)   self.detail_btn.setCheckable(True)   self.detail_btn.setChecked(True)   self.detail_btn.toggled.connect(self.show_output)   grid.addWidget(buttons, 7, 0)     self.setLayout(grid)   self.setWindowTitle(_('TortoiseHg Command Dialog'))   self.resize(540, 420)     # prepare to show   self.close_btn.setHidden(True)     # start command   self.core.run(cmdline)     def show_output(self, visible):   """show/hide command output"""   self.core.output_text.setVisible(visible)   self.detail_btn.setChecked(visible)     # workaround to adjust only window height   self.setMinimumWidth(self.width())   self.adjustSize()   self.setMinimumWidth(0)     ### Private Method ###     def reject(self):   if self.core.is_running():   ret = QMessageBox.question(self, _('Confirm Exit'), _('Mercurial'   ' command is still running.\nAre you sure you want'   ' to terminate?'), QMessageBox.Yes | QMessageBox.No,   QMessageBox.No)   if ret == QMessageBox.Yes:   self.cancel_clicked()     # don't close dialog   return     # close dialog   if self.core.thread.ret == 0:   self.accept() # means command successfully finished   else:   super(Dialog, self).reject()     ### Signal Handlers ###     def cancel_clicked(self):   self.core.cancel()     def command_finished(self, wrapper):   self.cancel_btn.setHidden(True)   self.close_btn.setShown(True)   self.close_btn.setFocus()     def command_canceling(self):   self.cancel_btn.setDisabled(True)