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Theme Editor: fixed "Pick Color from Screen" on macOS

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On macOS Big Sur (and later), to pick colors outside of theme editor window it is necessary to give "Screen Recording" permission to the application (or to the IDE started from).
For the arrow keys, "Accessibility" permission is necessary.
See "System Preferences > Security & Privacy > Privacy".
This commit is contained in:
Karl Tauber
2021-12-27 21:49:49 +01:00
parent 5fae367fab
commit b6a504e121
1 changed files with 17 additions and 5 deletions
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22
flatlaf-theme-editor/src/main/java/com/formdev/flatlaf/themeeditor/FlatColorPipette.java
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@@ -44,6 +44,7 @@ import com.formdev.flatlaf.icons.FlatAbstractIcon;
import com.formdev.flatlaf.ui.FlatEmptyBorder;
import com.formdev.flatlaf.ui.FlatLineBorder;
import com.formdev.flatlaf.util.HSLColor;
import com.formdev.flatlaf.util.SystemInfo;
import com.formdev.flatlaf.util.UIScale;
/**
@@ -93,7 +94,9 @@ class FlatColorPipette
setAlwaysOnTop( true );
setUndecorated( true );
setOpacity( 0.005f );
// macOS: windows with opacity smaller than 0.05 does not receive
// mouse clicked/pressed/released events (but mouse moved events)
setOpacity( SystemInfo.isMacOS ? 0.05f : 0.005f );
setBounds( owner.getGraphicsConfiguration().getBounds() );
robot = new Robot( owner.getGraphicsConfiguration().getDevice() );
@@ -109,6 +112,8 @@ class FlatColorPipette
// (temporary change opacity to zero to get correct color from robot)
float oldOpacity = getOpacity();
setOpacity( 0 );
if( SystemInfo.isMacOS )
robot.delay( 20 ); // give macOS some time to update the opacity
Color color = robot.getPixelColor( lastX, lastY );
setOpacity( oldOpacity );
@@ -120,10 +125,17 @@ class FlatColorPipette
public void mouseClicked( MouseEvent e ) {
dispose();
if( SwingUtilities.isLeftMouseButton( e ) )
pick( robot.getPixelColor( e.getX(), e.getY() ) );
else
pick( null );
Color color = null;
if( SwingUtilities.isLeftMouseButton( e ) ) {
// on macOS, robot not always returns correct color
// in mouse clicked event (sometimes black; sometimes
// includes opacity of disposed window)
// --> use last hover color on macOS
color = SystemInfo.isMacOS
? lastHoverColor
: robot.getPixelColor( e.getX(), e.getY() );
}
pick( color );
}
};