Examples of com.vaadin.ui.JavaScript

com.vaadin.ui.JavaScript
Provides access to JavaScript functionality in the web browser. To get an instance of JavaScript, either use Page.getJavaScript() or JavaScript.getCurrent() as a shorthand for getting the JavaScript object corresponding to the current Page. @author Vaadin Ltd @since 7.0.0

    }


    public JavaScript getJavaScript() {
        if (javaScript == null) {
            // Create and attach on first use
            javaScript = new JavaScript();
            javaScript.extend(uI);
        }
        return javaScript;
    }

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    private Log log = new Log(5);


    @Override
    protected void setup(VaadinRequest request) {
        addComponent(log);
        final JavaScript js = JavaScript.getCurrent();
        js.addFunction("testing.doTest", new JavaScriptFunction() {
            @Override
            public void call(JsonArray arguments) {
                log.log("Got " + arguments.length() + " arguments");
                log.log("Argument 1 as a number: " + (int) arguments.getNumber(0));
                log.log("Argument 2 as a string: " + arguments.getString(1));
                log.log("Argument 3.p as a boolean: "
                        + arguments.getObject(2).getBoolean("p"));
                log.log("Argument 4 is JSONObject.NULL: "
                        + (arguments.get(3) instanceof JsonNull));
                js.removeFunction("testing.doTest");
            }
        });
        js.execute("window.testing.doTest(42, 'text', {p: true}, null)");
    }

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    }


    public JavaScript getJavaScript() {
        if (javaScript == null) {
            // Create and attach on first use
            javaScript = new JavaScript();
            javaScript.extend(uI);
        }
        return javaScript;
    }

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    }


    public JavaScript getJavaScript() {
        if (javaScript == null) {
            // Create and attach on first use
            javaScript = new JavaScript();
            javaScript.extend(uI);
        }


        return javaScript;
    }

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com.vaadin.server.Page

com.vaadin.tests.extensions.JavascriptManagerTest

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