while dockManager.removeDockWidget , the dockManager() returns null (#399)

kangzhanlei · web-flow · commit d5fefaa35fb5 · 2022-02-18T19:33:55.000+01:00
diff --git a/src/DockWidget.cpp b/src/DockWidget.cpp
@@ -893,7 +893,10 @@ void CDockWidget::setFloating()
 //============================================================================
 void CDockWidget::deleteDockWidget()
 {
-	dockManager()->removeDockWidget(this);
+	auto manager=dockManager();
+	if(manager){
+		manager->removeDockWidget(this);
+	}
 	deleteLater();
 	d->Closed = true;
 }

Original file line number	Diff line number	Diff line change
`@@ -893,7 +893,10 @@ void CDockWidget::setFloating()`
`893`	`893`	`//============================================================================`
`894`	`894`	`void CDockWidget::deleteDockWidget()`
`895`	`895`	`{`
`896`		`- dockManager()->removeDockWidget(this);`
	`896`	`+ auto manager=dockManager();`
	`897`	`+ if(manager){`
	`898`	`+ manager->removeDockWidget(this);`
	`899`	`+ }`
`897`	`900`	`deleteLater();`
`898`	`901`	`d->Closed = true;`
`899`	`902`	`}`