org.springframework.ide.eclipse.boot.wizard.HierarchicalMultiSelectionFieldModel.java Source code

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Here is the source code for org.springframework.ide.eclipse.boot.wizard.HierarchicalMultiSelectionFieldModel.java

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/*******************************************************************************
 * Copyright (c) 2015, 2017 Pivotal, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Pivotal, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.boot.wizard;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.function.Supplier;

import org.springframework.ide.eclipse.boot.wizard.CheckBoxesSection.CheckBoxModel;
import org.springsource.ide.eclipse.commons.livexp.core.LiveExpression;

/**
 * Model for a UI widget that offers multiple choices. Similar to MultiSelectionFieldModel, however
 * the choices are organized into categories instead of a flat list of choices.
 *
 * @author Kris De Volder
 */

public class HierarchicalMultiSelectionFieldModel<T> {

    private Map<String, MultiSelectionFieldModel<T>> categories = new TreeMap<String, MultiSelectionFieldModel<T>>();

    private String name;
    private String label;
    private Class<T> type;

    public HierarchicalMultiSelectionFieldModel(Class<T> type, String name) {
        this.name = name;
        this.label = name;
        this.type = type;
    }

    public Collection<String> getCategories() {
        return Collections.unmodifiableCollection(categories.keySet());
    }

    public MultiSelectionFieldModel<T> getContents(String category) {
        return categories.get(category);
    }

    public HierarchicalMultiSelectionFieldModel<T> label(String label) {
        this.label = label;
        return this;
    }

    private MultiSelectionFieldModel<T> ensureCategory(String categoryName) {
        MultiSelectionFieldModel<T> existing = categories.get(categoryName);
        if (existing == null) {
            categories.put(categoryName,
                    existing = new MultiSelectionFieldModel<T>(type, name).label(categoryName));
        }
        return existing;
    }

    public void sort() {
        for (String cat : getCategories()) {
            getContents(cat).sort();
        }
    }

    /**
     * Add a choice to a category, create the category if it doesn't exist yet.
     */
    public void choice(String catName, String name, T dep, Supplier<String> tooltipHtml, String requirementTooltip,
            LiveExpression<Boolean> enablement) {
        MultiSelectionFieldModel<T> cat = ensureCategory(catName);
        cat.choice(name, dep, tooltipHtml, requirementTooltip, enablement);
    }

    public void setSelection(String catName, T dep, boolean selected) {
        MultiSelectionFieldModel<T> cat = categories.get(catName);
        if (cat != null) {
            cat.getSelection(dep).setValue(selected);
        }
    }

    public String getLabel() {
        return label;
    }

    public List<T> getCurrentSelection() {
        ArrayList<T> selecteds = new ArrayList<>();
        for (String cat : getCategories()) {
            selecteds.addAll(getContents(cat).getCurrentSelection());
        }
        return Collections.unmodifiableList(selecteds);
    }

    /**
     * Gets the checkbox models for all the checkboxes in all the categories in a single
     * list.
     */
    public List<CheckBoxModel<T>> getAllBoxes() {
        ArrayList<CheckBoxModel<T>> allUsedBoxes = new ArrayList<CheckBoxModel<T>>();
        for (String category : getCategories()) {
            allUsedBoxes.addAll(getContents(category).getCheckBoxModels());
        }
        return allUsedBoxes;
    }

    public void clearSelection() {
        categories.values().forEach(MultiSelectionFieldModel::clearSelection);
    }
}