org.apache.openaz.xacml.admin.view.windows.ColumnSelectionWindow.java Source code

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Here is the source code for org.apache.openaz.xacml.admin.view.windows.ColumnSelectionWindow.java

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/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 *
 */

package org.apache.openaz.xacml.admin.view.windows;

import com.vaadin.annotations.AutoGenerated;
import com.vaadin.data.Buffered.SourceException;
import com.vaadin.data.Validator.InvalidValueException;
import com.vaadin.data.validator.IntegerRangeValidator;
import com.vaadin.event.FieldEvents.TextChangeEvent;
import com.vaadin.event.FieldEvents.TextChangeListener;
import com.vaadin.event.ShortcutAction.KeyCode;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
// import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.TextField;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;

public class ColumnSelectionWindow extends Window {

    /*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */

    @AutoGenerated
    private VerticalLayout mainLayout;
    @AutoGenerated
    private Button buttonSave;
    @AutoGenerated
    private TextField textFieldColumn;
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private boolean isSaved = false;
    private ColumnSelectionWindow self = this;

    /**
     * The constructor should first build the main layout, set the
     * composition root and then do any custom initialization.
     *
     * The constructor will not be automatically regenerated by the
     * visual editor.
     */
    public ColumnSelectionWindow(Integer value) {
        buildMainLayout();
        //setCompositionRoot(mainLayout);
        setContent(mainLayout);
        //
        // Initialize
        //
        this.initialize();
        //
        // Set the value
        //
        if (value != null) {
            this.textFieldColumn.setValue(value.toString());
        } else {
            this.textFieldColumn.setValue(Integer.toString(0));
        }
        //
        // Shortcuts
        //
        this.setCloseShortcut(KeyCode.ESCAPE);
        this.buttonSave.setClickShortcut(KeyCode.ENTER);
        //
        // Focus
        //
        this.textFieldColumn.focus();
    }

    protected void initialize() {
        this.initializeText();
        this.initializeButton();
    }

    protected void initializeText() {
        //
        // Add a validator
        //
        this.textFieldColumn.addValidator(
                new IntegerRangeValidator("Please enter an integer greater than or equal to 0.", 0, null));
        //
        // Respond to text changing to setup the button
        //
        this.textFieldColumn.addTextChangeListener(new TextChangeListener() {
            private static final long serialVersionUID = 1L;

            @Override
            public void textChange(TextChangeEvent event) {
                if (event.getText() != null && event.getText().isEmpty() == false) {
                    self.buttonSave.setEnabled(true);
                } else {
                    self.buttonSave.setEnabled(false);
                }
            }
        });
    }

    protected void initializeButton() {
        self.buttonSave.addClickListener(new ClickListener() {
            private static final long serialVersionUID = 1L;

            @Override
            public void buttonClick(ClickEvent event) {
                try {
                    //
                    // Commit
                    //
                    self.textFieldColumn.commit();
                    //
                    // If we get here, the value is valid.
                    // Mark ourselves as saved and close the window
                    //
                    self.isSaved = true;
                    self.close();
                } catch (SourceException | InvalidValueException e) { //NOPMD
                    //
                    // Vaadin will display error
                    //
                }
            }
        });
    }

    public boolean isSaved() {
        return this.isSaved;
    }

    public Integer getColumn() {
        try {
            return Integer.parseInt(this.textFieldColumn.getValue());
        } catch (NumberFormatException e) {
            return null;
        }
    }

    @AutoGenerated
    private VerticalLayout buildMainLayout() {
        // common part: create layout
        mainLayout = new VerticalLayout();
        mainLayout.setImmediate(false);
        mainLayout.setWidth("-1px");
        mainLayout.setHeight("-1px");
        mainLayout.setMargin(true);
        mainLayout.setSpacing(true);

        // top-level component properties
        setWidth("-1px");
        setHeight("-1px");

        // textFieldColumn
        textFieldColumn = new TextField();
        textFieldColumn.setCaption("Column");
        textFieldColumn.setImmediate(false);
        textFieldColumn.setDescription("0-based index into CSV line");
        textFieldColumn.setWidth("-1px");
        textFieldColumn.setHeight("-1px");
        textFieldColumn.setRequired(true);
        textFieldColumn.setInputPrompt("Eg. 0'");
        mainLayout.addComponent(textFieldColumn);

        // buttonSave
        buttonSave = new Button();
        buttonSave.setCaption("Save");
        buttonSave.setImmediate(false);
        buttonSave.setWidth("-1px");
        buttonSave.setHeight("-1px");
        mainLayout.addComponent(buttonSave);
        mainLayout.setComponentAlignment(buttonSave, new Alignment(48));

        return mainLayout;
    }

}