P4
In WebView, If you use the clipboard perform inter-process communication, it is broken line separator of multi-line text.
Input: 123 [LF] 456 [LF] 789
In the case of the same process: 123 [CR] [LF] 456 [CR] [LF] 789
In the case of different processes: 123 [CR] [CR] [LF] 456 [CR] [CR] [LF] 789
This problem makes it difficult to interoperability of the desktop application.
Start two following test applications at the same time, you can see the problem by using the clipboard.
test code:
WebViewClipboardTest .java
-----------------------------------
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.input.Clipboard;
import javafx.scene.layout.VBox;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import javafx.util.Duration;
public class WebViewClipboardTest extends Application{
@Override
public void start(Stage stage) throws Exception {
VBox pane = new VBox();
WebView browser = new WebView();
TextArea textArea = new TextArea();
String html = "<html><body><h1>TEST-1: text</h1>123<br>456<br>789<h1>TEST-2: pre</h1><pre>123\n456\n789</pre><h1>TEST-3: textarea</h1><textarea rows=5>123\n456\n789</textarea></body></html>";
browser.getEngine().loadContent(html);
pane.getChildren().addAll(browser, new Label("Clipboard:"), textArea);
Scene scene = new Scene(pane);
stage.setScene(scene);
stage.show();
Timeline monitor = new Timeline(new KeyFrame(Duration.millis(200), new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
Clipboard clipboard = Clipboard.getSystemClipboard();
if(clipboard.hasString()){
final String text = clipboard.getString()
.replace("\r", "[CR]")
.replace("\n", "[LF]");
textArea.setText(text);
//clipboard.clear();
}
}
}));
monitor.setCycleCount(Timeline.INDEFINITE);
monitor.play();
stage.show();
}
public static void main(String[] args) {
WebViewClipboardTest.launch(args);
}
}
Input: 123 [LF] 456 [LF] 789
In the case of the same process: 123 [CR] [LF] 456 [CR] [LF] 789
In the case of different processes: 123 [CR] [CR] [LF] 456 [CR] [CR] [LF] 789
This problem makes it difficult to interoperability of the desktop application.
Start two following test applications at the same time, you can see the problem by using the clipboard.
test code:
WebViewClipboardTest .java
-----------------------------------
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.input.Clipboard;
import javafx.scene.layout.VBox;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import javafx.util.Duration;
public class WebViewClipboardTest extends Application{
@Override
public void start(Stage stage) throws Exception {
VBox pane = new VBox();
WebView browser = new WebView();
TextArea textArea = new TextArea();
String html = "<html><body><h1>TEST-1: text</h1>123<br>456<br>789<h1>TEST-2: pre</h1><pre>123\n456\n789</pre><h1>TEST-3: textarea</h1><textarea rows=5>123\n456\n789</textarea></body></html>";
browser.getEngine().loadContent(html);
pane.getChildren().addAll(browser, new Label("Clipboard:"), textArea);
Scene scene = new Scene(pane);
stage.setScene(scene);
stage.show();
Timeline monitor = new Timeline(new KeyFrame(Duration.millis(200), new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
Clipboard clipboard = Clipboard.getSystemClipboard();
if(clipboard.hasString()){
final String text = clipboard.getString()
.replace("\r", "[CR]")
.replace("\n", "[LF]");
textArea.setText(text);
//clipboard.clear();
}
}
}));
monitor.setCycleCount(Timeline.INDEFINITE);
monitor.play();
stage.show();
}
public static void main(String[] args) {
WebViewClipboardTest.launch(args);
}
}
- duplicates
-
JDK-8172561 Copying String with "\r\n" to Clipboard duplicates "\r"
-
- Resolved
-