de.metas.ui.web.vaadin.window.components.ATabToolbar.java Source code

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Here is the source code for de.metas.ui.web.vaadin.window.components.ATabToolbar.java

Source

package de.metas.ui.web.vaadin.window.components;

import java.util.HashMap;
import java.util.Map;

import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.HorizontalLayout;

import de.metas.ui.web.vaadin.window.model.TabToolbarModel;
import de.metas.ui.web.vaadin.window.model.TabToolbarModel.TabToolbarListener;

/*
 * #%L
 * de.metas.ui.web.vaadin
 * %%
 * Copyright (C) 2016 metas GmbH
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-2.0.html>.
 * #L%
 */

@SuppressWarnings("serial")
public class ATabToolbar extends HorizontalLayout {
    private final TabToolbarModel model;

    private final Map<String, Button> action2button = new HashMap<>();

    private final TabToolbarListener tabToolbarListener = new TabToolbarListener() {
        @Override
        public void onActionEnabledChanged(final String action, final boolean enabled) {
            ATabToolbar.this.onActionEnabledChanged(action, enabled);
        }
    };

    private final Button.ClickListener actionButtonListener = new Button.ClickListener() {

        @Override
        public void buttonClick(final ClickEvent event) {
            final Button button = event.getButton();
            final ActionInfo actionInfo = (ActionInfo) button.getData();
            onActionButtonClicked(button, actionInfo);
        }
    };

    public ATabToolbar(final TabToolbarModel model) {
        super();

        this.model = model;
        this.model.addTabToolbarListener(tabToolbarListener);

        addToolbarButton(ActionInfo.of(TabToolbarModel.ACTION_PreviousRecord));
        addToolbarButton(ActionInfo.of(TabToolbarModel.ACTION_NextRecord));
    }

    private void addToolbarButton(final ActionInfo actionInfo) {
        final String action = actionInfo.getAction();

        final Button button = new Button();
        button.setCaption(action);
        button.setData(actionInfo);
        button.setEnabled(model.isActionEnabled(action));
        button.addClickListener(actionButtonListener);

        action2button.put(action, button);

        addComponent(button);
    }

    private void onActionButtonClicked(final Button button, final ActionInfo actionInfo) {
        model.executeAction(actionInfo.getAction());
    }

    private void onActionEnabledChanged(final String action, final boolean enabled) {
        final Button button = action2button.get(action);
        if (button == null) {
            return;
        }

        button.setEnabled(enabled);
    }

    private static final class ActionInfo {
        public static final ActionInfo of(final String action) {
            return new ActionInfo(action);
        }

        private final String action;

        private ActionInfo(final String action) {
            super();
            this.action = action;
        }

        public String getAction() {
            return action;
        }
    }
}