hg/html~html4j: boot-fx/src/main/java/org/netbeans/html/boot/fx/FXBrwsr.java@c535c36881af

     1 /**

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

     5  *

     6  * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

     7  * Other names may be trademarks of their respective owners.

     8  *

     9  * The contents of this file are subject to the terms of either the GNU

    10  * General Public License Version 2 only ("GPL") or the Common

    11  * Development and Distribution License("CDDL") (collectively, the

    12  * "License"). You may not use this file except in compliance with the

    13  * License. You can obtain a copy of the License at

    14  * http://www.netbeans.org/cddl-gplv2.html

    15  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

    16  * specific language governing permissions and limitations under the

    17  * License.  When distributing the software, include this License Header

    18  * Notice in each file and include the License file at

    19  * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

    20  * particular file as subject to the "Classpath" exception as provided

    21  * by Oracle in the GPL Version 2 section of the License file that

    22  * accompanied this code. If applicable, add the following below the

    23  * License Header, with the fields enclosed by brackets [] replaced by

    24  * your own identifying information:

    25  * "Portions Copyrighted [year] [name of copyright owner]"

    26  *

    27  * Contributor(s):

    28  *

    29  * The Original Software is NetBeans. The Initial Developer of the Original

    30  * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.

    31  *

    32  * If you wish your version of this file to be governed by only the CDDL

    33  * or only the GPL Version 2, indicate your decision by adding

    34  * "[Contributor] elects to include this software in this distribution

    35  * under the [CDDL or GPL Version 2] license." If you do not indicate a

    36  * single choice of license, a recipient has the option to distribute

    37  * your version of this file under either the CDDL, the GPL Version 2 or

    38  * to extend the choice of license to its licensees as provided above.

    39  * However, if you add GPL Version 2 code and therefore, elected the GPL

    40  * Version 2 license, then the option applies only if the new code is

    41  * made subject to such option by the copyright holder.

    42  */

    43 package org.netbeans.html.boot.fx;

    45 import java.net.URL;

    46 import java.util.ResourceBundle;

    47 import java.util.concurrent.CountDownLatch;

    48 import java.util.concurrent.Executors;

    49 import java.util.logging.Level;

    50 import java.util.logging.Logger;

    51 import java.util.prefs.Preferences;

    52 import javafx.application.Application;

    53 import javafx.application.Platform;

    54 import javafx.beans.value.ChangeListener;

    55 import javafx.beans.value.ObservableValue;

    56 import javafx.concurrent.Worker;

    57 import javafx.event.ActionEvent;

    58 import javafx.event.EventHandler;

    59 import javafx.geometry.Insets;

    60 import javafx.geometry.Pos;

    61 import javafx.geometry.Rectangle2D;

    62 import javafx.scene.Scene;

    63 import javafx.scene.control.Button;

    64 import javafx.scene.control.TextField;

    65 import javafx.scene.layout.BorderPane;

    66 import javafx.scene.layout.HBox;

    67 import javafx.scene.layout.VBox;

    68 import javafx.scene.text.Text;

    69 import javafx.scene.web.PromptData;

    70 import javafx.scene.web.WebEvent;

    71 import javafx.scene.web.WebView;

    72 import javafx.stage.Modality;

    73 import javafx.stage.Screen;

    74 import javafx.stage.Stage;

    75 import javafx.stage.Window;

    76 import javafx.stage.WindowEvent;

    77 import javafx.util.Callback;

    79 /** This is an implementation class, to implement browser builder API. Just

    80  * include this JAR on classpath and the browser builder API will find

    81  * this implementation automatically.

    82  */

    83 public class FXBrwsr extends Application {

    84     private static final Logger LOG = Logger.getLogger(FXBrwsr.class.getName());

    85     private static FXBrwsr INSTANCE;

    86     private static final CountDownLatch FINISHED = new CountDownLatch(1);

    87     private BorderPane root;

    89     public static synchronized WebView findWebView(final URL url, final FXPresenter onLoad) {

    90         if (INSTANCE == null) {

    91             final String callee = findCalleeClassName();

    92             Executors.newFixedThreadPool(1).submit(new Runnable() {

    93                 @Override

    94                 public void run() {

    95                     if (!Platform.isFxApplicationThread()) {

    96                         try {

    97                             Platform.runLater(this);

    98                         } catch (IllegalStateException ex) {

    99                             try {

   100                                 FXBrwsr.launch(FXBrwsr.class, callee);

   101                             } catch (Throwable t) {

   102                                 t.printStackTrace();

   103                             } finally {

   104                                 FINISHED.countDown();

   105                             }

   106                         }

   107                     } else {

   108                         FXBrwsr brwsr = new FXBrwsr();

   109                         brwsr.start(new Stage(), callee);

   110                         INSTANCE = brwsr;

   111                         FINISHED.countDown();

   112                     }

   113                 }

   114             });

   115         }

   116         while (INSTANCE == null) {

   117             try {

   118                 FXBrwsr.class.wait();

   119             } catch (InterruptedException ex) {

   120                 // wait more

   121             }

   122         }

   123         if (!Platform.isFxApplicationThread()) {

   124             final WebView[] arr = {null};

   125             final CountDownLatch waitForResult = new CountDownLatch(1);

   126             Platform.runLater(new Runnable() {

   127                 @Override

   128                 public void run() {

   129                     arr[0] = INSTANCE.newView(url, onLoad);

   130                     waitForResult.countDown();

   131                 }

   132             });

   133             for (;;) {

   134                 try {

   135                     waitForResult.await();

   136                     break;

   137                 } catch (InterruptedException ex) {

   138                     LOG.log(Level.INFO, null, ex);

   139                 }

   140             }

   141             return arr[0];

   142         } else {

   143             return INSTANCE.newView(url, onLoad);

   144         }

   145     }

   147     static synchronized Stage findStage() throws InterruptedException {

   148         while (INSTANCE == null) {

   149             FXBrwsr.class.wait();

   150         }

   151         return INSTANCE.stage;

   152     }

   154     private Stage stage;

   156     @Override

   157     public void start(Stage primaryStage) throws Exception {

   158         start(primaryStage, this.getParameters().getRaw().get(0));

   159     }

   161     final void start(Stage primaryStage, String callee) {

   162         BorderPane r = new BorderPane();

   163         Object[] arr = findInitialSize(callee);

   164         Scene scene = new Scene(r, (Double)arr[2], (Double)arr[3]);

   165         primaryStage.setScene(scene);

   166         this.root = r;

   167         this.stage = primaryStage;

   168         synchronized (FXBrwsr.class) {

   169             INSTANCE = this;

   170             FXBrwsr.class.notifyAll();

   171         }

   172         primaryStage.setX((Double)arr[0]);

   173         primaryStage.setY((Double)arr[1]);

   174         if (arr[4] != null) {

   175             scene.getWindow().setOnCloseRequest((EventHandler<WindowEvent>) arr[4]);

   176         }

   177         if (Boolean.getBoolean("fxpresenter.headless")) {

   178             return;

   179         }

   180         primaryStage.show();

   181     }

   183     static String findCalleeClassName() {

   184         StackTraceElement[] frames = new Exception().getStackTrace();

   185         for (StackTraceElement e : frames) {

   186             String cn = e.getClassName();

   187             if (cn.startsWith("org.netbeans.html.")) { // NOI18N

   188                 continue;

   189             }

   190             if (cn.startsWith("net.java.html.")) { // NOI18N

   191                 continue;

   192             }

   193             if (cn.startsWith("java.")) { // NOI18N

   194                 continue;

   195             }

   196             if (cn.startsWith("javafx.")) { // NOI18N

   197                 continue;

   198             }

   199             if (cn.startsWith("com.sun.")) { // NOI18N

   200                 continue;

   201             }

   202             return cn;

   203         }

   204         return "org.netbeans.html"; // NOI18N

   205     }

   207     private static Object[] findInitialSize(String callee) {

   208         final Preferences prefs = Preferences.userRoot().node(callee.replace('.', '/'));

   209         Rectangle2D screen = Screen.getPrimary().getBounds();

   210         double x = prefs.getDouble("x", screen.getWidth() * 0.05); // NOI18N

   211         double y = prefs.getDouble("y", screen.getHeight() * 0.05); // NOI18N

   212         double width = prefs.getDouble("width", screen.getWidth() * 0.9); // NOI18N

   213         double height = prefs.getDouble("height", screen.getHeight() * 0.9); // NOI18N

   215         Object[] arr = {

   216             x, y, width, height, null

   217         };

   219         if (!callee.equals("org.netbeans.html")) { // NOI18N

   220             arr[4] = new EventHandler<WindowEvent>() {

   221                 @Override

   222                 public void handle(WindowEvent event) {

   223                     Window window = (Window) event.getSource();

   224                     prefs.putDouble("x", window.getX()); // NOI18N

   225                     prefs.putDouble("y", window.getY()); // NOI18N

   226                     prefs.putDouble("width", window.getWidth()); // NOI18N

   227                     prefs.putDouble("height", window.getHeight()); // NOI18N

   228                 }

   229             };

   230         }

   232         return arr;

   233     }

   235     private WebView newView(final URL url, final FXPresenter onLoad) {

   236         final WebView view = new WebView();

   237         view.setContextMenuEnabled(false);

   238         Stage newStage;

   239         BorderPane bp;

   240         if (root == null) {

   241             newStage = new Stage();

   242             newStage.initOwner(stage);

   243             bp = new BorderPane();

   244             newStage.setScene(new Scene(bp));

   245             newStage.show();

   246         } else {

   247             bp = root;

   248             newStage = stage;

   249             root = null;

   250         }

   252         attachHandlers(view, newStage);

   253         bp.setCenter(view);

   254         final Worker<Void> w = view.getEngine().getLoadWorker();

   255         w.stateProperty().addListener(new ChangeListener<Worker.State>() {

   256             private String previous;

   258             @Override

   259             public void changed(ObservableValue<? extends Worker.State> ov, Worker.State t, Worker.State newState) {

   260                 if (newState.equals(Worker.State.SUCCEEDED)) {

   261                     if (checkValid()) {

   262                         FXConsole.register(view.getEngine());

   263                         onLoad.onPageLoad();

   264                     }

   265                 }

   266                 if (newState.equals(Worker.State.FAILED)) {

   267                     throw new IllegalStateException("Failed to load " + url);

   268                 }

   269             }

   270             private boolean checkValid() {

   271                 final String crnt = view.getEngine().getLocation();

   272                 if (previous != null && !previous.equals(crnt)) {

   273                     w.stateProperty().removeListener(this);

   274                     return false;

   275                 }

   276                 previous = crnt;

   277                 return true;

   278             }

   280         });

   281         class Title implements ChangeListener<String> {

   283             private String title;

   285             public Title() {

   286                 super();

   287             }

   289             @Override

   290             public void changed(ObservableValue<? extends String> ov, String t, String t1) {

   291                 title = view.getEngine().getTitle();

   292                 if (title != null) {

   293                     stage.setTitle(title);

   294                 }

   295             }

   296         }

   297         final Title x = new Title();

   298         view.getEngine().titleProperty().addListener(x);

   299         x.changed(null, null, null);

   300         return view;

   301     }

   303     private static void attachHandlers(final WebView view, final Stage owner) {

   304         view.getEngine().setOnAlert(new EventHandler<WebEvent<String>>() {

   305             @Override

   306             public void handle(WebEvent<String> t) {

   307                 final Stage dialogStage = new Stage();

   308                 dialogStage.initModality(Modality.WINDOW_MODAL);

   309                 dialogStage.initOwner(owner);

   310                 ResourceBundle r = ResourceBundle.getBundle("org/netbeans/html/boot/fx/Bundle"); // NOI18N

   311                 dialogStage.setTitle(r.getString("AlertTitle")); // NOI18N

   312                 final Button button = new Button(r.getString("AlertCloseButton")); // NOI18N

   313                 final Text text = new Text(t.getData());

   314                 VBox box = new VBox();

   315                 box.setAlignment(Pos.CENTER);

   316                 box.setSpacing(10);

   317                 box.setPadding(new Insets(10));

   318                 box.getChildren().addAll(text, button);

   319                 dialogStage.setScene(new Scene(box));

   320                 button.setCancelButton(true);

   321                 button.setOnAction(new CloseDialogHandler(dialogStage, null));

   322                 dialogStage.centerOnScreen();

   323                 dialogStage.showAndWait();

   324             }

   325         });

   326         view.getEngine().setConfirmHandler(new Callback<String, Boolean>() {

   327             @Override

   328             public Boolean call(String question) {

   329                 final Stage dialogStage = new Stage();

   330                 dialogStage.initModality(Modality.WINDOW_MODAL);

   331                 dialogStage.initOwner(owner);

   332                 ResourceBundle r = ResourceBundle.getBundle("org/netbeans/html/boot/fx/Bundle"); // NOI18N

   333                 dialogStage.setTitle(r.getString("ConfirmTitle")); // NOI18N

   334                 final Button ok = new Button(r.getString("ConfirmOKButton")); // NOI18N

   335                 final Button cancel = new Button(r.getString("ConfirmCancelButton")); // NOI18N

   336                 final Text text = new Text(question);

   337                 final Insets ins = new Insets(10);

   338                 final VBox box = new VBox();

   339                 box.setAlignment(Pos.CENTER);

   340                 box.setSpacing(10);

   341                 box.setPadding(ins);

   342                 final HBox buttons = new HBox(10);

   343                 buttons.getChildren().addAll(ok, cancel);

   344                 buttons.setAlignment(Pos.CENTER);

   345                 buttons.setPadding(ins);

   346                 box.getChildren().addAll(text, buttons);

   347                 dialogStage.setScene(new Scene(box));

   348                 ok.setCancelButton(false);

   350                 final boolean[] res = new boolean[1];

   351                 ok.setOnAction(new CloseDialogHandler(dialogStage, res));

   352                 cancel.setCancelButton(true);

   353                 cancel.setOnAction(new CloseDialogHandler(dialogStage, null));

   354                 dialogStage.centerOnScreen();

   355                 dialogStage.showAndWait();

   356                 return res[0];

   357             }

   358         });

   359         view.getEngine().setPromptHandler(new Callback<PromptData, String>() {

   360             @Override

   361             public String call(PromptData prompt) {

   362                 final Stage dialogStage = new Stage();

   363                 dialogStage.initModality(Modality.WINDOW_MODAL);

   364                 dialogStage.initOwner(owner);

   365                 ResourceBundle r = ResourceBundle.getBundle("org/netbeans/html/boot/fx/Bundle"); // NOI18N

   366                 dialogStage.setTitle(r.getString("PromptTitle")); // NOI18N

   367                 final Button ok = new Button(r.getString("PromptOKButton")); // NOI18N

   368                 final Button cancel = new Button(r.getString("PromptCancelButton")); // NOI18N

   369                 final Text text = new Text(prompt.getMessage());

   370                 final TextField line = new TextField();

   371                 if (prompt.getDefaultValue() != null) {

   372                     line.setText(prompt.getDefaultValue());

   373                 }

   374                 final Insets ins = new Insets(10);

   375                 final VBox box = new VBox();

   376                 box.setAlignment(Pos.CENTER);

   377                 box.setSpacing(10);

   378                 box.setPadding(ins);

   379                 final HBox buttons = new HBox(10);

   380                 buttons.getChildren().addAll(ok, cancel);

   381                 buttons.setAlignment(Pos.CENTER);

   382                 buttons.setPadding(ins);

   383                 box.getChildren().addAll(text, line, buttons);

   384                 dialogStage.setScene(new Scene(box));

   385                 ok.setCancelButton(false);

   387                 final boolean[] res = new boolean[1];

   388                 ok.setOnAction(new CloseDialogHandler(dialogStage, res));

   389                 cancel.setCancelButton(true);

   390                 cancel.setOnAction(new CloseDialogHandler(dialogStage, null));

   391                 dialogStage.centerOnScreen();

   392                 dialogStage.showAndWait();

   393                 return res[0] ? line.getText() : null;

   394             }

   395         });

   396     }

   398     static void waitFinished() {

   399         for (;;) {

   400             try {

   401                 FINISHED.await();

   402                 break;

   403             } catch (InterruptedException ex) {

   404                 LOG.log(Level.INFO, null, ex);

   405             }

   406         }

   407     }

   409     private static final class CloseDialogHandler implements EventHandler<ActionEvent> {

   410         private final Stage dialogStage;

   411         private final boolean[] res;

   413         public CloseDialogHandler(Stage dialogStage, boolean[] res) {

   414             this.dialogStage = dialogStage;

   415             this.res = res;

   416         }

   418         @Override

   419         public void handle(ActionEvent t) {

   420             dialogStage.close();

   421             if (res != null) {

   422                 res[0] = true;

   423             }

   424         }

   425     }

   427 }

author	Jaroslav Tulach <jtulach@netbeans.org>
	Sun, 11 Oct 2015 07:24:32 +0200
changeset 1008	c535c36881af
parent 1006	a0f79e32d526
permissions	-rw-r--r--