Dépôt officiel du code source de l'ERP OpenConcerto

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 2011-2019 OpenConcerto, by ILM Informatique. All rights reserved.
 * 
 * The contents of this file are subject to the terms of the GNU General Public License Version 3
 * only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
 * copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each file.
 */
 
 package org.openconcerto.sql.view.list.action;

import org.openconcerto.utils.cc.IPredicate;
import org.openconcerto.utils.i18n.TranslationManager;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.function.Consumer;

/**
 * An action that act on rows of a list. Either {@link #enabledFor(ListEvent)} or
 * {@link #enabledFor(List)} must be overloaded.
 * 
 * @author Sylvain CUAZ
 */
public abstract class SQLRowValuesAction {

    public static class PredicateRowAction extends SQLRowValuesAction {
        private IPredicate<? super ListEvent> pred = null;

        public PredicateRowAction(boolean header, Consumer<? super ListEvent> action) {
            super(header, action);
        }

        public PredicateRowAction(boolean header, boolean popupMenu, Consumer<? super ListEvent> action) {
            super(header, popupMenu, action);
        }

        public PredicateRowAction(boolean header, final String id, Consumer<? super ListEvent> action) {
            super(header, id, action);
        }

        public PredicateRowAction(boolean header, boolean popupMenu, final String id, Consumer<? super ListEvent> action) {
            super(header, popupMenu, id, action);
        }

        public final PredicateRowAction setPredicate(IPredicate<? super ListEvent> pred) {
            if (pred == null) {
                throw new IllegalArgumentException("null predicate");
            }
            this.pred = pred;
            return this;
        }

        public final IPredicate<? super ListEvent> getPredicate() {
            return this.pred;
        }

        @Override
        public boolean enabledFor(ListEvent evt) {
            if (this.pred == null) {
                throw new IllegalStateException("No predicate for " + this);
            }
            return this.pred.evaluateChecked(evt);
        }
    }

    private final Consumer<? super ListEvent> action;
    private final boolean header, popupMenu;
    private List<String> path;
    private final String id;
    private String name;

    public SQLRowValuesAction(boolean header, Consumer<? super ListEvent> action) {
        this(header, true, action);
    }

    public SQLRowValuesAction(boolean header, boolean popupMenu, Consumer<? super ListEvent> action) {
        this(header, popupMenu, null, action);
    }

    public SQLRowValuesAction(boolean header, final String id, Consumer<? super ListEvent> action) {
        this(header, true, id, action);
    }

    public SQLRowValuesAction(boolean header, boolean popupMenu, final String id, Consumer<? super ListEvent> action) {
        super();
        this.action = action;
        this.header = header;
        this.popupMenu = popupMenu;
        this.setGroup(null);
        this.id = id;
        if (id != null)
            this.setName(TranslationManager.getInstance().getTranslationForAction(id));
    }

    public final String getID() {
        return this.id;
    }

    public final SQLRowValuesAction setName(String name) {
        this.name = name;
        return this;
    }

    public final String getName() {
        return this.name;
    }

    public final Consumer<? super ListEvent> getAction() {
        return this.action;
    }

    public final boolean inHeader() {
        return this.header;
    }

    public final boolean inPopupMenu() {
        return this.popupMenu;
    }

    public final SQLRowValuesAction setGroup(String groupName) {
        this.path = Arrays.asList(groupName);
        return this;
    }

    public final SQLRowValuesAction setPath(List<String> path) {
        this.path = Collections.unmodifiableList(new ArrayList<String>(path));
        return this;
    }

    public final List<String> getPath() {
        return this.path;
    }

    /**
     * Whether the action should be enabled in the header or in the popup.
     * 
     * @param evt the state of the IListe.
     * @return <code>true</code> if the action can be performed.
     */
    public abstract boolean enabledFor(ListEvent evt);

    public Consumer<? super ListEvent> getDefaultAction(ListEvent evt) {
        return this.enabledFor(evt) ? this.getAction() : null;
    }

    @Override
    public String toString() {
        return this.getClass().getSimpleName() + (this.getID() == null ? "" : " ID '" + this.getID()) + "'";
    }
}