Using this code and the hardcoded url, the graph in the url doesn't load. I tried disabling my firewall and running it under JDK 9 with a pre-release build of Netbeans 9. No luck. A WebSocket test says that WebSocket is working fine (url commented out in the code). Any ideas what's wrong or what I should check? My guess is it has to do with WebSocket regardless of the test results. I'm using Netbeans 8.2 and jdk1.8.0_144.
//
// Code from https://stackoverflow.com/questions/42297864/javafx-webview-in-java-project
//
public class FXWebViewInSwing {
private JFXPanel jfxPanel;
public void createAndShowWindow() {
JFrame frame = new JFrame();
JButton quit = new JButton("Quit");
quit.addActionListener(event -> System.exit(0));
jfxPanel = new JFXPanel();
Platform.runLater(this::createJFXContent);
JPanel buttonPanel = new JPanel();
buttonPanel.add(quit);
frame.add(BorderLayout.CENTER, jfxPanel);
frame.add(BorderLayout.SOUTH, buttonPanel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(1024, 576);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private void createJFXContent() {
WebView webView = new WebView();
webView.getEngine().load("https://www.tradingview.com/chart/bKsZf5LY/");
// webView.getEngine().load("https://websocket.org/echo.html");
Scene scene = new Scene(webView);
jfxPanel.setScene(scene);
}
public static void main(String[] args) {
FXWebViewInSwing swingApp = new FXWebViewInSwing();
SwingUtilities.invokeLater(swingApp::createAndShowWindow);
}
}
Related
I might be missing something very obvious, but I can't find out how to set the Icon for a Dialog component (ProgressDialog to be more precise). I know how to do that for a Stage:
this.primaryStage.getIcons().add(new Image(getClass().getResourceAsStream("/icon/Logo.png")));
But I don't find anything for the Dialog family. And somehow, setting the Stage Icon does not influence the Dialog Icon.
Thanks
There's an excellent tutorial here by Marco Jakob, where you can find not only how to use dialogs, but also how to solve your problem.
Both for the new dialogs (in JDK8u40 early versions or with openjfx-dialogs with JDK 8u25), or for those in ControlsFX, in order to set the icon of your dialog, you can use this solution:
Stage stage = (Stage) dialog.getDialogPane().getScene().getWindow();
stage.getIcons().add(
new Image(this.getClass().getResource("<image>.png").toString()));
This code snippet shows how to use a ProgressDialog, from ControlsFX, and set an icon for the dialog:
#Override
public void start(Stage primaryStage) {
Service<Void> service = new Service<Void>() {
#Override protected Task<Void> createTask() {
return new Task<Void>() {
#Override protected Void call() throws InterruptedException {
updateMessage("Message . . .");
updateProgress(0, 10);
for (int i = 0; i < 10; i++) {
Thread.sleep(300);
updateProgress(i + 1, 10);
updateMessage("Progress " + (i + 1) + " of 10");
}
updateMessage("End task");
return null;
}
};
}
};
Button btn = new Button("Start Service");
btn.setOnAction(e -> {
ProgressDialog dialog = new ProgressDialog(service);
dialog.setTitle("Progress Dialog");
dialog.setHeaderText("Header message");
Stage stage = (Stage) dialog.getDialogPane().getScene().getWindow();
stage.getIcons().add(new Image(this.getClass().getResource("<image>.png").toString()));
service.start();
});
Scene scene = new Scene(new StackPane(btn), 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
}
Just Do like this:
Alert(AlertType.ERROR, "Erreur de connexion! Verifiez vos Identifiants",FINISH); //Cancel..
setTitle("XNotes FX Erreur");
stage = (Stage) alert.getDialogPane().getScene().getWindow();
stage.getIcons().add(new Image("indiza/XnotesErrorIdz.png")); // To add an icon
showAndWait();
Here is the result
**My friends, is it computer science that we do? : No, we do crafts
**
You can easily use the icon of your application for the alert-icon by setting your application-window as owner of the alert box:
#FXML
Button buShow;
...
Alert alert = new Alert(AlertType.INFORMATION, "Nice Box.", ButtonType.CLOSE);
alert.initOwner(buShow.getScene().getWindow()); // Alert uses the Windows Icon
alert.show();
This is a method that I include in my JavaFX projects, simply calling this method and passing the Alert as a parameter will set both the title bar icon and the header graphic.
public class Msg {
public void showInfo(String title, String header, String message) {
Alert alertShowInfo = new Alert(Alert.AlertType.INFORMATION);
addDialogIconTo(alertShowInfo); //add icon and header graphic
alertShowInfo.setTitle(title);
alertShowInfo.setHeaderText(header);
alertShowInfo.setContentText(message);
alertShowInfo.showAndWait();
}
//this adds images to Alert
public void addDialogIconTo(Alert alert) {
// Add custom Image to Dialog's title bar
final Image APPLICATION_ICON = new Image("icon.png");
Stage dialogStage = (Stage) alert.getDialogPane().getScene().getWindow();
dialogStage.getIcons().add(APPLICATION_ICON);
// Add custom ImageView to Dialog's header pane.
final ImageView DIALOG_HEADER_ICON = new ImageView("icon.png");
DIALOG_HEADER_ICON.setFitHeight(48); // Set size to API recommendation.
DIALOG_HEADER_ICON.setFitWidth(48);
alert.getDialogPane().setGraphic(DIALOG_HEADER_ICON);
}
}
Then, in whatever class I wish to use the Alert, it will already have the customized icon and header graphic.
public static void main(String[] args){
Msg msg = new Msg();
// Alert will now include custom icon and header graphic.
msg.showInfo("Sucess!", "Program succeeded", "Now exiting program");
}
Just similar to any dialog, instead this is inside a button handler.
Alert alert = new Alert(
AlertType.WARNING,
"Alert message here.",
ButtonType.OK
);
alert.initOwner(((Button)event.getSource()).getScene().getWindow());
alert.setTitle("Alert window title");
alert.showAndWait();
apologies for the length of my code. I realized last night that I was on the wrong path and now have gotten stuck on an issue that I think relates to JavaFX event handling. Initially I had the logic functioning outside a GUI in a basic loop that depended on interaction through the console. Everything was working great. I've now tried to get this to work in a GUI with interaction from the user.
I have two main problems with the code below.
The first is that the text in textArea is not updating with additional text after the startButton executes the start of my main logic sequence. The first append starts right under the first while loop. I was hoping to have this show up in the GUI as the logic executes. I'm not sure if I need to tell the GUI to update at certain intervals or if there's something else wrong.
Second, I'm not sure how to get the program to wait for the user to type in something into textField before hitting the textButton I created to continue on. I used to have a scanner created which caused the program to wait in the console for input. I realize I need some way of telling it to wait for a button press when it's running inside JavaFX.
I chose not to include the rest of the code to make things easier to read, but I can add it on if it will help resolve this issue.
Thank you everyone for your help!
public class FxApp extends Application {
//Creates FileParser object with methods that alter the incoming Array of Strings into the format we need
FileParser fileParser = new FileParser();
Configure configure = new Configure();
private String text;
private String initialState;
private ArrayList<Machine> machines = new ArrayList<Machine>();
private Map<String, String> initialStates = new HashMap<String, String>();
private Map<String, String> states = new HashMap<String, String>();
private Map<String, ArrayDeque<String>> queues = new HashMap<String, ArrayDeque<String>>();
private Map<Integer, ArrayList<String>> parsedData = new HashMap<Integer, ArrayList<String>>();
#Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("File Chooser");
FileChooser fileChooser = new FileChooser();
fileChooser.getExtensionFilters().addAll(new ExtensionFilter("Text Files", "*.txt"));
Button startButton = new Button("Start");
Button openButton = new Button("Click to open a file...");
openButton.setPrefSize(200, 80);
Button textButton = new Button("Enter");
TextArea textArea = new TextArea();
textArea.setWrapText(true);
TextField textField = new TextField();
Label lbl = new Label();
VBox vbox = new VBox(lbl, openButton, startButton, textArea, textField, textButton);
vbox.setSpacing(10);
vbox.setPadding(new Insets(15));
lbl.setText("This tool creates virtual automata based \ron the file.");
Scene scene = new Scene(vbox, 640, 480);
primaryStage.setScene(scene);
primaryStage.show();
openButton.setOnAction(
new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent e) {
File file = fileChooser.showOpenDialog(primaryStage);
if (file != null) {
//Execute the method to convert to string array before sending to file parser
try {
fileParser.convertFile(file);
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
});
textButton.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
text = textField.getText();
}
});
startButton.setOnAction(new EventHandler <ActionEvent>()
{
public void handle(ActionEvent event)
{
machineCreation();
String exit = "no";
String nextLine = null;
ArrayList<String> listOfCurrentTransitions = new ArrayList<String>();
int nextInt = 0;
states = initialStates;
while(!(exit.toLowerCase().equals("yes"))) {
textArea.appendText("Choose a state to load");
//Print out the states possible for each machine
ArrayList<String> tempTrans = machines.get(nextInt).getTransitions();
//This loops through the list of transitions of the machine and pulls possible transitions from its current state
for(int i = 0; i < tempTrans.size(); i++) {
String pull = tempTrans.get(i);
String[] apart = pull.split(" ");
pull = apart[0];
if(states.get(Integer.toString(nextInt)).equals(pull)) {
listOfCurrentTransitions.add(tempTrans.get(i));
}
}
if(!(listOfCurrentTransitions.isEmpty())) {
textArea.appendText("The following transitions are possible. Choose one: " + listOfCurrentTransitions);
}
else {
textArea.appendText("No transitions for this machine exist from its current state");
}
//Tell GUI to wait for user input in textField and execute textButton which assigns to String text. Resume on button click.
The while loop blocks the JavaFX application thread which prevents updates of the GUI and handling of events.
You need to execute the logic of a single iteration of the loop on each "text commit" instead:
private TextArea textArea;
private void activateState(int nextInt) {
ArrayList<String> listOfCurrentTransitions = new ArrayList<String>();
textArea.appendText("Choose a state to load");
//Print out the states possible for each machine
ArrayList<String> tempTrans = machines.get(nextInt).getTransitions();
//This loops through the list of transitions of the machine and pulls possible transitions from its current state
for(int i = 0; i < tempTrans.size(); i++) {
String pull = tempTrans.get(i);
String[] apart = pull.split(" ");
pull = apart[0];
if(states.get(Integer.toString(nextInt)).equals(pull)) {
listOfCurrentTransitions.add(tempTrans.get(i));
}
}
if(listOfCurrentTransitions.isEmpty()) {
textArea.appendText("No transitions for this machine exist from its current state");
} else {
textArea.appendText("The following transitions are possible. Choose one: " + listOfCurrentTransitions);
}
}
#Override
public void start(Stage primaryStage) throws Exception {
...
textArea = new TextArea();
...
startButton.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
machineCreation();
activateState(0);
}
});
textButton.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
// read input and ask for more input...
int nextState = Integer.parseInt(textField.getText()); // TODO: deal with invalid input
activateState(nextState);
}
});
You probably need to fix the logic a bit to verify a transition is valid, change the values of some fields ect...
I have developed a very simplified but fully functional JavaFX web browser for illustrating what I want to ask. Here follows the source code.
public class OpenInNewTab extends Application {
#Override
public void start(Stage primaryStage)
{
TabPane tabPane = new TabPane();
WebView webView = new WebView();
Tab tab = new Tab("Home Tab");
tab.setContent(webView);
tabPane.getTabs().add(tab);
webView.getEngine().load("https://www.google.co.in/?gws_rd=ssl#q=javafx");
BorderPane root = new BorderPane();
root.setTop(tabPane);
Scene scene = new Scene(root, 600, 339);
primaryStage.setTitle("Basic browser");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args)
{
launch(args);
} }
This browser loads a web page from this link. I want that when I click on any of the search results, the clicked hyperlink should open in new tab adjacent to the existing "Home tab".
After searching on the internet extensively, I reached nowhere.
Please help me with relevant code. Thanks.
First of all, you need to find a way to handle all outgoing click events on the displayed page. I've made a helper method to achieve that. It creates an event listener for each link, clicking on which will open a new tab.
private void handleUrls(Document doc) {
NodeList links = doc.getElementsByTagName("a");
for (int i = 0; i < links.getLength(); i++) {
EventTarget eventTarget = (EventTarget) links.item(i);
String link = links.item(i).toString();
eventTarget.addEventListener("click", e -> {
WebView webView = new WebView();
alterWebView(webView);
Tab tab = new Tab(link);
tab.setContent(webView);
tab.setClosable(true);
webView.getEngine().load(link);
tabPane.getTabs().add(tab);
e.preventDefault();
}, false);
}
}
You may want to set a better name for your tab... I've used a link as a makeshift solution, but it's long and messy.
webView.getEngine().load(link);
The alterWebView referenced above is another helper function. It's responsible for tracking the loading progress. Once the Worker does nothing, it will add listeners to all urls.
private void alterWebView(WebView webView) {
WebEngine engine = webView.getEngine();
Worker worker = engine.getLoadWorker();
worker.stateProperty().addListener((oldVal, newVal, o) -> {
if (newVal.equals(State.RUNNING)) {
handleUrls(engine.getDocument());
}
});
}
So basically, the logic behind the code above is as follows:
We track our WebEngine's State until the page is fully loaded and then we add event listeners to every url.
These listeners, when invoked, will create a new WebView, handle it accordingly, and add it to the TabPane inside a new Tab.
And here's the complete, working example based on your code:
public class JavaFXTest extends Application {
private TabPane tabPane;
#Override
public void start(Stage primaryStage) {
tabPane = new TabPane();
WebView webView = new WebView();
alterWebView(webView);
Tab tab = new Tab("Home Tab");
tab.setContent(webView);
tab.setClosable(true);
tabPane.getTabs().add(tab);
webView.getEngine().load("https://www.google.co.in/?gws_rd=ssl#q=javafx");
BorderPane root = new BorderPane();
root.setTop(tabPane);
Scene scene = new Scene(root, 600, 339);
primaryStage.setTitle("Basic browser");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
private void alterWebView(WebView webView) {
WebEngine engine = webView.getEngine();
Worker worker = engine.getLoadWorker();
worker.stateProperty().addListener((oldVal, newVal, o) -> {
if (newVal.equals(State.RUNNING)) {
handleUrls(engine.getDocument());
}
});
}
private void handleUrls(Document doc) {
NodeList links = doc.getElementsByTagName("a");
for (int i = 0; i < links.getLength(); i++) {
EventTarget eventTarget = (EventTarget) links.item(i);
String link = links.item(i).toString();
eventTarget.addEventListener("click", e -> {
WebView webView = new WebView();
alterWebView(webView);
Tab tab = new Tab(link);
tab.setContent(webView);
tab.setClosable(true);
webView.getEngine().load(link);
tabPane.getTabs().add(tab);
e.preventDefault();
}, false);
}
}
}
I have a JavaFx application that loads a transparent stage with some text on it.
I want any click on the application to be completely ignored and the background application (if any) to receive that click.
My code at this stage is as follows:
public void start(final Stage primaryStage) {
primaryStage.setAlwaysOnTop(true);
final StackPane layout = new StackPane();
final Text mainText = new Text();
layout.getChildren().add(mainText);
mainText.setText("|||||||||||||||||||||||||||");
final Scene mainScene = new Scene(layout);
mainScene.setFill(null);
primaryStage.initStyle(StageStyle.TRANSPARENT);
primaryStage.setScene(mainScene);
primaryStage.show();
layout.setMouseTransparent(true);
mainText.setMouseTransparent(true);
}
I was not able to achieve the requirement. setMouseTransparent() just prevented the text from triggering events, it still captured the mouse clicks.
Is it possible to achieve this in JavaFx ? Even if it is a per-OS solution.
A way of doing this action in Windows is through user32.dll and Java Native Access (JNA). We used GetWindowLong to get the current configuration of the window and SetWindowLong to update the bit field that is controlling the ability of the window be transparent to the mouse.
Following is a working example that demonstrates this functionality:
#Override
public void start(final Stage primaryStage) {
primaryStage.setAlwaysOnTop(true);
final StackPane layout = new StackPane();
final Text mainText = new Text();
layout.getChildren().add(mainText);
mainText.setText("|||||||||||||||||||||||||||");
final Scene mainScene = new Scene(layout);
mainScene.setFill(null);
primaryStage.initStyle(StageStyle.TRANSPARENT);
primaryStage.setScene(mainScene);
primaryStage.setTitle(sTitle);
primaryStage.show();
sUser32.EnumWindows(
(hWnd, data) -> {
final byte[] windowText = new byte[512];
sUser32.GetWindowTextA(hWnd, windowText, 512);
final String wText = Native.toString(windowText);
if (!wText.isEmpty() && wText.equals(sTitle)) {
final int initialStyle = com.sun.jna.platform.win32.User32.INSTANCE.GetWindowLong(hWnd, WinUser.GWL_EXSTYLE);
com.sun.jna.platform.win32.User32.INSTANCE.SetWindowLong(hWnd, WinUser.GWL_EXSTYLE, initialStyle | WinUser.WS_EX_TRANSPARENT );
return false;
}
return true;
}, null);
}
I am search an pagination example for loading data asynchron from a server. I have no clue how to solve that with the pagination control of javafx. Well i hava an example where an observable list is loaded in the background with 10k of items. But i only want to load the items for a page when its actually needed. So only when the user switcht to the next page i want to grab the next 20 items with a task. When the task is done the page should be rendered..
Thanks for any advice and help!
Link to observable example:
https://forums.oracle.com/forums/thread.jspa?messageID=10976705#10976705
All you need is to start a background thread with your task once user clicked on a page. See next example which uses sites downloading for a long task:
public class Pages extends Application {
#Override
public void start(Stage primaryStage) {
final Pagination root = new Pagination(urls.length, 0);
root.setPageFactory(new Callback<Integer, Node>() {
// This method will be called every time user clicks on page button
public Node call(final Integer pageIndex) {
final Label content = new Label("Please, wait");
content.setWrapText(true);
StackPane box = new StackPane();
box.getChildren().add(content);
// here we starts long operation in another thread
new Thread() {
String result;
public void run() {
try {
URL url = new URL(urls[pageIndex]);
URLConnection urlConnection = url.openConnection();
urlConnection.setConnectTimeout(1000);
urlConnection.setReadTimeout(1000);
BufferedReader breader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
StringBuilder stringBuilder = new StringBuilder();
String line;
while ((line = breader.readLine()) != null) {
stringBuilder.append(line);
}
result = stringBuilder.toString();
} catch (Exception ex) {
result = "Download failed";
}
// once operation is finished we update UI with results
Platform.runLater(new Runnable() {
#Override
public void run() {
content.setText(result);
}
});
}
}.start();
return box;
}
});
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Pages!");
primaryStage.setScene(scene);
primaryStage.show();
}
private final static String[] urls = {"http://oracle.com", "http://stackoverflow.com", "http://stackexchange~.com", "http://google.com", "http://javafx.com"};
public static void main(String[] args) {
launch(args);
}
}