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Native window decorations: fixed exception when switching Laf after closing a dialog

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This commit is contained in:
Karl Tauber
2021-02-22 09:56:40 +01:00
parent b9a2e3ceac
commit e41c91a42b
1 changed files with 9 additions and 4 deletions
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13
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatNativeWindowBorder.java
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@@ -59,9 +59,14 @@ public class FlatNativeWindowBorder
if( !isSupported() )
return null;
// check whether root pane already has a parent, which is the case when switching LaF
// Check whether root pane already has a window, which is the case when switching LaF.
// Also check whether the window is displayable, which is required to install
// FlatLaf native window border.
// If the window is not displayable, then it was probably closed/disposed but not yet removed
// from the list of windows that AWT maintains and returns with Window.getWindows().
// It could be also be a window that is currently hidden, but may be shown later.
Window window = SwingUtilities.windowForComponent( rootPane );
if( window != null ) {
if( window != null && window.isDisplayable() ) {
install( window, FlatSystemProperties.USE_NATIVE_WINDOW_DECORATIONS );
return null;
}
@@ -92,7 +97,7 @@ public class FlatNativeWindowBorder
JFrame frame = (JFrame) window;
// do not enable native window border if JFrame should use system window decorations
// and if not forced to use TODO JBR decorations
// and if not forced to use FlatLaf/JBR native window decorations
if( !JFrame.isDefaultLookAndFeelDecorated() &&
!FlatSystemProperties.getBoolean( systemPropertyKey, false ))
return;
@@ -111,7 +116,7 @@ public class FlatNativeWindowBorder
JDialog dialog = (JDialog) window;
// do not enable native window border if JDialog should use system window decorations
// and if not forced to use TODO JBR decorations
// and if not forced to use FlatLaf/JBR native window decorations
if( !JDialog.isDefaultLookAndFeelDecorated() &&
!FlatSystemProperties.getBoolean( systemPropertyKey, false ))
return;