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Report unhandled exceptions.

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Kovid Goyal 2007-08-05 01:28:13 +00:00
parent 6f8b824da9
commit 7093f7e80f
1 changed files with 33 additions and 14 deletions
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47
src/libprs500/gui2/main.py
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@ -12,12 +12,11 @@
## You should have received a copy of the GNU General Public License along
## with this program; if not, write to the Free Software Foundation, Inc.,
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.Warning
import os, tempfile, sys
import os, tempfile, sys, traceback
from PyQt4.QtCore import Qt, SIGNAL, QObject, QCoreApplication, \
QSettings, QVariant, QSize, QThread, QModelIndex
from PyQt4.QtGui import QPixmap, QColor, QPainter, QMenu, QIcon, QMessageBox, \
QItemSelectionModel
QSettings, QVariant, QSize, QThread
from PyQt4.QtGui import QPixmap, QColor, QPainter, QMenu, QIcon, QMessageBox
from PyQt4.QtSvg import QSvgRenderer
from libprs500 import __version__, __appname__
@ -59,6 +58,8 @@ class Main(QObject, Ui_MainWindow):
self.upload_memory = {}
self.delete_memory = {}
self.default_thumbnail = None
self.device_error_dialog = error_dialog(self.window, 'Error communicating with device', ' ')
self.device_error_dialog.setModal(Qt.NonModal)
####################### Location View ########################
QObject.connect(self.location_view, SIGNAL('location_selected(PyQt_PyObject)'),
self.location_selected)
@ -166,7 +167,7 @@ class Main(QObject, Ui_MainWindow):
Called once device information has been read.
'''
if exception:
self.job_exception(id, description, exception, formatted_traceback)
self.device_job_exception(id, description, exception, formatted_traceback)
return
info, cp, fs = result
self.location_view.model().update_devices(cp, fs)
@ -179,7 +180,7 @@ class Main(QObject, Ui_MainWindow):
Called once metadata has been read for all books on the device.
'''
if exception:
self.job_exception(id, description, exception, formatted_traceback)
self.device_job_exception(id, description, exception, formatted_traceback)
return
mainlist, cardlist = result
self.memory_view.set_database(mainlist)
@ -207,7 +208,7 @@ class Main(QObject, Ui_MainWindow):
Called once metadata has been uploaded.
'''
if exception:
self.job_exception(id, description, exception, formatted_traceback)
self.device_job_exception(id, description, exception, formatted_traceback)
return
cp, fs = result
self.location_view.model().update_devices(cp, fs)
@ -274,7 +275,7 @@ class Main(QObject, Ui_MainWindow):
'</p>\n<ul>%s</ul>'%(titles,))
d.exec_()
else:
self.job_exception(id, description, exception, formatted_traceback)
self.device_job_exception(id, description, exception, formatted_traceback)
return
self.device_manager.add_books_to_metadata(result, metadata, self.booklists())
@ -319,7 +320,7 @@ class Main(QObject, Ui_MainWindow):
for view in (self.memory_view, self.card_view):
view.model().deletion_done(id, bool(exception))
if exception:
self.job_exception(id, description, exception, formatted_traceback)
self.device_job_exception(id, description, exception, formatted_traceback)
return
self.upload_booklists()
@ -431,14 +432,24 @@ class Main(QObject, Ui_MainWindow):
view.resize_on_select = False
self.status_bar.reset_info()
self.current_view().clearSelection()
self.current_view().setCurrentIndex(view.model().index(0, 0))
self.current_view().setCurrentIndex(self.current_view().model().index(0, 0))
def job_exception(self, id, exception, formatted_traceback):
def device_job_exception(self, id, description, exception, formatted_traceback):
'''
Handle exceptions in threaded jobs.
'''
raise JobException, str(exception) + '\n\r' + formatted_traceback
print >>sys.stderr, 'Error in job:', description
print >>sys.stderr, exception
print >>sys.stderr, formatted_traceback
if not self.device_error_dialog.isVisible():
msg = '<p><b>%s</b>: '%(exception.__class__.__name__,) + str(exception) + '</p>'
msg += '<p>Failed to perform <b>job</b>: '+description
msg += '<p>Further device related error messages will not be shown while this message is visible.'
msg += '<p>Detailed <b>traceback</b>:<pre>'+formatted_traceback+'</pre>'
self.device_error_dialog.setText(msg)
self.device_error_dialog.show()
def read_settings(self):
@ -472,6 +483,14 @@ class Main(QObject, Ui_MainWindow):
else:
e.ignore()
def unhandled_exception(self, type, value, tb):
traceback.print_exception(type, value, tb, file=sys.stderr)
fe = '\n'.join(traceback.format_exception(type, value, tb))
msg = '<p><b>' + str(value) + '</b></p>'
msg += '<p>Detailed <b>traceback</b>:<pre>'+fe+'</pre>'
d = error_dialog(self.window, 'ERROR: Unhandled exception', msg)
d.exec_()
def main():
lock = os.path.join(tempfile.gettempdir(),"libprs500_gui_lock")
if os.access(lock, os.F_OK):
@ -497,8 +516,8 @@ def main():
import traceback
traceback.print_exception(type, value, tb, file=sys.stderr)
if type == KeyboardInterrupt:
QCoreApplication.exit(1)
sys.excepthook = unhandled_exception
main.window.close()
sys.excepthook = main.unhandled_exception
return app.exec_()