Example usage for com.vaadin.ui TextArea setPlaceholder

Introduction

In this page you can find the example usage for com.vaadin.ui TextArea setPlaceholder.

Prototype

public void setPlaceholder(String placeholder) 

Source Link

Document

Sets the placeholder text.

Usage

From source file:fi.jasoft.qrcode.demo.QRCodeDemo.java

License:Apache License

@Override
protected void init(VaadinRequest request) {

    VerticalLayout content = new VerticalLayout();
    content.setSizeFull();//from   w  w w. java2 s.com
    setContent(content);

    Label header = new Label("QR Code Generator");
    header.setStyleName(ValoTheme.LABEL_H2);
    content.addComponent(header);

    HorizontalSplitPanel root = new HorizontalSplitPanel();
    root.setSizeFull();
    root.setSplitPosition(50, Unit.PERCENTAGE);
    root.setLocked(true);

    Panel panel = new Panel(root);
    panel.setSizeFull();
    content.addComponent(panel);
    content.setExpandRatio(panel, 1);

    VerticalLayout first = new VerticalLayout();
    first.setSizeFull();
    root.setFirstComponent(first);

    first.addComponent(
            new HorizontalLayout(createPrimaryColorSelect(), createSecondaryColorSelect(), createSizeSelect()));

    code = new QRCode();
    code.setWidth("100px");
    code.setHeight("100px");

    final TextArea text = new TextArea("Text embedded in QR Code");
    text.setPlaceholder("Type the message of the QR code here");
    text.setSizeFull();
    text.setValueChangeMode(ValueChangeMode.LAZY);
    text.addValueChangeListener(e -> {
        code.setValue(e.getValue());
    });

    first.addComponent(text);
    first.setExpandRatio(text, 1);

    VerticalLayout vl = new VerticalLayout();
    vl.setSizeFull();

    vl.addComponent(code);
    vl.setComponentAlignment(code, Alignment.MIDDLE_CENTER);

    root.setSecondComponent(vl);
}

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