1 #Usage: jjs -fx fxml_example.js

     2 #nashorn simple example using FXML with #javafx

     3 

     4 /*

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     6  *

     7  * Redistribution and use in source and binary forms, with or without

     8  * modification, are permitted provided that the following conditions

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    12  *     notice, this list of conditions and the following disclaimer.

    13  *

    14  *   - Redistributions in binary form must reproduce the above copyright

    15  *     notice, this list of conditions and the following disclaimer in the

    16  *     documentation and/or other materials provided with the distribution.

    17  *

    18  *   - Neither the name of Oracle nor the names of its

    19  *     contributors may be used to endorse or promote products derived

    20  *     from this software without specific prior written permission.

    21  *

    22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

    23  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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    34  

    35 // See also https://docs.oracle.com/javase/8/javafx/api/javafx/fxml/doc-files/introduction_to_fxml.html

    36  

    37 if (! $OPTIONS._fx) {

    38     print("Usage: jjs -fx fxml_example.js");

    39     exit(1);

    40 }

    41  

    42 // inline FXML document here

    43 var fxml = <<EOF

    44  

    45 <?import javafx.scene.*?>

    46 <?import javafx.scene.control.*?>

    47 <?import javafx.scene.layout.*?>

    48  

    49 <VBox xmlns:fx="http://javafx.com/fxml">

    50     <children>

    51     <!-- ids will be used script later -->

    52     <HBox>

    53         <Label text="Your name please:"/>

    54         <TextField fx:id="nameText" text="Nashorn"/>

    55     </HBox>

    56     <Button fx:id="clickButton" text="Click!"/>

    57     </children>

    58 </VBox>

    59  

    60 EOF

    61  

    62 // Java and FX classes used

    63 var ByteArrayInputStream = Java.type("java.io.ByteArrayInputStream");

    64 var FXMLLoader = Java.type("javafx.fxml.FXMLLoader");

    65 var Scene = Java.type("javafx.scene.Scene");

    66  

    67 function start(stage) {

    68     var loader = new FXMLLoader();

    69     // load FXML from a string

    70     var root = loader.load(new ByteArrayInputStream(fxml.getBytes("UTF-8")));

    71  

    72     // get the button and the text field controls

    73     var button = root.lookup("#clickButton");

    74     var textField = root.lookup("#nameText");

    75  

    76     // event handler for button

    77     var clickCount = 0;

    78     button.onAction = function() {

    79         print(textField.text + ", you clicked me: " + ++clickCount + " time(s)");

    80     }

    81  

    82     var scene = new Scene(root, 300, 275);

    83     stage.title = "FXML Example";

    84     stage.scene = scene;

    85     stage.show();

    86 }