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I need to show my webview content over parent background pattern. Is there a straightforward way to do it?
691
Webview transparent I get a good solution here : https://javafx-jira.kenai.com/browse/RT-29186 read comments Harry Hur
import java.lang.reflect.Field;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import org.w3c.dom.Document; `
public class TestTranparentApps extends Application {
@Override
public void start(Stage primaryStage) {
new WebPage(primaryStage);
primaryStage.show();
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
class WebPage{
WebView webview;
WebEngine webengine;
public WebPage(Stage mainstage){
webview = new WebView();
webengine = webview.getEngine();
Scene scene = new Scene(webview);
scene.setFill(null);
mainstage.setScene(scene);
mainstage.initStyle(StageStyle.TRANSPARENT);
mainstage.setWidth(700);
mainstage.setHeight(100);
webengine.documentProperty().addListener(new DocListener());
webengine.loadContent("<body style='background : rgba(0,0,0,0);font-size: 70px;text-align:center;'>Test Transparent</body>");
}
class DocListener implements ChangeListener<Document>{
@Override
public void changed(ObservableValue<? extends Document> observable, Document oldValue, Document newValue) {
try {
// Use reflection to retrieve the WebEngine's private 'page' field.
Field f = webengine.getClass().getDeclaredField("page");
f.setAccessible(true);
com.sun.webkit.WebPage page = (com.sun.webkit.WebPage) f.get(webengine);
page.setBackgroundColor((new java.awt.Color(0, 0, 0, 0)).getRGB());
} catch (Exception e) {
}
}
}
}
}
If u have a bright background use
webView.setBlendMode(BlendMode.DARKEN);
and when dark background, then
webView.setBlendMode(BlendMode.LIGHTEN);
This will probably be fixed in some time, this feature is requested on the JavaFX bug tracker #RT-25004
41
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