qt BlockingWaitingDialog: try harder to get label drawn (refresh bug)

5 years ago · 4b5616ff14
1 changed files with 5 additions and 0 deletions
--- a/electrum/gui/qt/util.py
+++ b/electrum/gui/qt/util.py
@ -332,9 +332,14 @@ class BlockingWaitingDialog(WindowModalDialog):
        self.message_label = QLabel(message)
        vbox = QVBoxLayout(self)
        vbox.addWidget(self.message_label)
+        # show popup
        self.show()
+        # refresh GUI; needed for popup to appear and for message_label to get drawn
        QCoreApplication.processEvents()
+        QCoreApplication.processEvents()
+        # block and run given task
        task()
+        # close popup
        self.accept()