/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed 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.dashbuilder.client.navigation.widget;

import javax.enterprise.context.Dependent;
import javax.inject.Inject;
import javax.inject.Named;

import org.dashbuilder.common.client.widgets.AlertBox;
import org.jboss.errai.common.client.dom.DOMUtil;
import org.jboss.errai.common.client.dom.Div;
import org.jboss.errai.common.client.dom.HTMLElement;
import org.jboss.errai.common.client.dom.UnorderedList;
import org.jboss.errai.ui.shared.api.annotations.DataField;
import org.jboss.errai.ui.shared.api.annotations.Templated;

@Dependent
@Templated
public class NavMenuBarWidgetView extends TargetDivNavWidgetView<NavMenuBarWidget>
        implements NavMenuBarWidget.View {

    @Inject
    @DataField
    Div mainDiv;

    @Inject
    @DataField
    UnorderedList navBar;

    @Inject
    @DataField
    @Named("nav")
    HTMLElement nav;

    NavMenuBarWidget presenter;

    @Inject
    public NavMenuBarWidgetView(AlertBox alertBox) {
        super(alertBox);
    }

    @Override
    public void init(NavMenuBarWidget presenter) {
        this.presenter = presenter;
        super.navWidget = navBar;
        setNavHeaderVisible(true);
    }

    @Override
    public void addDivider() {
        // Useless in a menu bar
    }

    @Override
    public void clearItems() {
        super.clearItems();
        DOMUtil.removeAllChildren(mainDiv);
        mainDiv.appendChild(navBar.getParentElement().getParentElement());
    }

    @Override
    public void error(String message) {
        DOMUtil.removeAllChildren(mainDiv);
        alertBox.setMessage(message);
        mainDiv.appendChild(alertBox.getElement());
    }

    @Override
    public void setNavHeaderVisible(boolean visible) {
        nav.setClassName(visible ? "navbar navbar-default navbar-pf" : "");
    }
}
