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Prevent key presses from acting during a long job

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Kovid Goyal 2013-10-18 22:12:49 +05:30
parent 9854cef7b6
commit ef20239be6
1 changed files with 16 additions and 2 deletions
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18
src/calibre/gui2/tweak_book/job.py
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@ -10,7 +10,7 @@ import time
from threading import Thread from threading import Thread
from functools import partial from functools import partial
from PyQt4.Qt import (QWidget, QVBoxLayout, QLabel, Qt, QPainter, QBrush, QColor) from PyQt4.Qt import (QWidget, QVBoxLayout, QLabel, Qt, QPainter, QBrush, QColor, QAction)
from calibre.gui2 import Dispatcher from calibre.gui2 import Dispatcher
from calibre.gui2.progress_indicator import ProgressIndicator from calibre.gui2.progress_indicator import ProgressIndicator
@ -59,12 +59,17 @@ class BlockingJob(QWidget):
def start(self): def start(self):
self.setGeometry(0, 0, self.parent().width(), self.parent().height()) self.setGeometry(0, 0, self.parent().width(), self.parent().height())
self.setVisible(True) self.setVisible(True)
# Prevent any actions from being triggerred by key presses
for child in self.parent().findChildren(QAction):
child.blockSignals(True)
self.raise_() self.raise_()
self.pi.startAnimation() self.pi.startAnimation()
def stop(self): def stop(self):
self.pi.stopAnimation() self.pi.stopAnimation()
self.setVisible(False) self.setVisible(False)
for child in self.parent().findChildren(QAction):
child.blockSignals(False)
def job_done(self, callback, job): def job_done(self, callback, job):
del job.callback del job.callback
@ -77,8 +82,17 @@ class BlockingJob(QWidget):
p.end() p.end()
QWidget.paintEvent(self, ev) QWidget.paintEvent(self, ev)
def eventFilter(self, obj, ev):
if ev.type() in (ev.KeyPress, ev.KeyRelease):
return True
return QWidget.eventFilter(self, obj, ev)
def set_msg(self, text):
self.msg.setText('<h2>%s</h2>' % text)
def __call__(self, name, user_text, callback, function, *args, **kwargs): def __call__(self, name, user_text, callback, function, *args, **kwargs):
self.msg.setText('<h2>%s</h2>' % user_text) ' Run a job that blocks the GUI providing some feedback to the user '
self.set_msg(user_text)
job = LongJob(name, user_text, Dispatcher(partial(self.job_done, callback)), function, *args, **kwargs) job = LongJob(name, user_text, Dispatcher(partial(self.job_done, callback)), function, *args, **kwargs)
job.start() job.start()
self.start() self.start()