alist-gui/src/main/resources/fxml/admin-panel.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import atlantafx.base.layout.InputGroup?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import org.kordamp.ikonli.javafx.*?>
<AnchorPane id="admin-panel" fx:id="adminPanel" maxHeight="250" maxWidth="520" prefHeight="250.0" prefWidth="520.0"
            stylesheets="@../css/admin-panel.css" xmlns="http://javafx.com/javafx/11.0.14-internal"
            xmlns:fx="http://javafx.com/fxml/1" fx:controller="cn.octopusyan.alistgui.controller.PasswordController">

    <AnchorPane styleClass="header" prefWidth="520" AnchorPane.leftAnchor="0" AnchorPane.rightAnchor="0"
                AnchorPane.topAnchor="0">
        <Label text="%admin.pwd.title" AnchorPane.leftAnchor="10" AnchorPane.topAnchor="10"/>
        <Button onAction="#close" styleClass="flat" AnchorPane.rightAnchor="0" AnchorPane.topAnchor="0">
            <graphic>
                <FontIcon iconLiteral="fa-remove"/>
            </graphic>
        </Button>
    </AnchorPane>

    <VBox alignment="CENTER" spacing="10" AnchorPane.bottomAnchor="30" AnchorPane.leftAnchor="0"
          AnchorPane.rightAnchor="0">

        <Label style="-fx-background-radius: 10;-fx-background-color: -color-button-bg-hover;"
               styleClass="button, flat, danger" text="%admin.pwd.toptip"/>

        <HBox alignment="CENTER" styleClass="admin-field">
            <Label text="%admin.pwd.user-field"/>
            <InputGroup fx:id="userField" styleClass="admin-field-value">
                <TextField fx:id="usernameField" text="admin" editable="false"/>
                <Button fx:id="copyUsername" onAction="#copyUsername">
                    <graphic>
                        <FontIcon iconLiteral="fa-copy"/>
                    </graphic>
                </Button>
            </InputGroup>
        </HBox>

        <HBox alignment="CENTER" styleClass="admin-field">
            <Label text="%admin.pwd.pwd-field"/>
            <InputGroup styleClass="admin-field-value">
                <PasswordField fx:id="passwordField" editable="false"/>
                <Button fx:id="refreshPassword" onAction="#savePassword" visible="false" managed="false">
                    <graphic>
                        <FontIcon iconLiteral="fa-refresh"/>
                    </graphic>
                </Button>
                <Button fx:id="savePassword" onAction="#savePassword" visible="false" managed="false">
                    <graphic>
                        <FontIcon iconLiteral="fa-save"/>
                    </graphic>
                </Button>
                <Button fx:id="copyPassword" onAction="#copyPassword">
                    <graphic>
                        <FontIcon iconLiteral="fa-copy"/>
                    </graphic>
                </Button>
            </InputGroup>
        </HBox>

    </VBox>

</AnchorPane>