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Report errors during UI initialization

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Exceptions raised during UI initialization were not being reported to
the user, leaving a partially functioning UI with no apparent cause.
This commit is contained in:
Kovid Goyal 2013-08-18 11:17:53 +05:30
parent 0d860c43fb
commit c9867cd599
1 changed files with 8 additions and 3 deletions
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9
src/calibre/gui2/main.py
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@ -177,7 +177,7 @@ class GuiRunner(QObject):
def start_gui(self, db):
from calibre.gui2.ui import Main
main = Main(self.opts, gui_debug=self.gui_debug)
main = self.main = Main(self.opts, gui_debug=self.gui_debug)
if self.splash_screen is not None:
self.splash_screen.showMessage(_('Initializing user interface...'))
with gprefs: # Only write gui.json after initialization is complete
@ -199,7 +199,6 @@ class GuiRunner(QObject):
for event in self.app.file_event_hook.events:
add_filesystem_book(event)
self.app.file_event_hook = add_filesystem_book
self.main = main
def initialization_failed(self):
print 'Catastrophic failure initializing GUI, bailing out...'
@ -231,7 +230,13 @@ class GuiRunner(QObject):
det_msg=traceback.format_exc(), show=True)
self.initialization_failed()
try:
self.start_gui(db)
except Exception:
error_dialog(self.main, _('Startup error'),
_('There was an error during {0} startup.'
' Parts of {0} may not function. Click Show details to learn more.').format(__appname__),
det_msg=traceback.format_exc(), show=True)
def initialize_db(self):
from calibre.db import get_db_loader