org.opennms.features.pluginmgr.vaadin.config.karaf.SimpleIframeApplication.java Source code

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Here is the source code for org.opennms.features.pluginmgr.vaadin.config.karaf.SimpleIframeApplication.java

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/*
 * Copyright 2014 OpenNMS Group Inc., Entimoss ltd.
 * 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.opennms.features.pluginmgr.vaadin.config.karaf;

import java.util.Map;

import com.vaadin.annotations.Theme;
import com.vaadin.annotations.Title;
import com.vaadin.server.ExternalResource;
import com.vaadin.server.VaadinRequest;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.BrowserFrame;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.Link;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Plugin Manager Administration Application.
 */
@Theme("reindeer")
@Title("Plugin Manager Administration")
@SuppressWarnings("serial")
public class SimpleIframeApplication extends UI {
    private static final Logger LOG = LoggerFactory.getLogger(SimpleIframeApplication.class);

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

    private Component headerComponent = null;

    private VaadinRequest m_request;
    private VerticalLayout m_rootLayout;

    private String iframePageUrl;

    private Map<String, String> headerLinks;

    /**
     * @return the headerComponent
     */
    public Component getHeaderComponent() {
        return headerComponent;
    }

    /**
     * @param headerComponent the headerComponent to set
     */
    public void setHeaderComponent(Component headerComponent) {
        this.headerComponent = headerComponent;
    }

    /**
     * headerLinks map of key= name and value=url for links to be placed in header of page
     * @return
     */
    public Map<String, String> getHeaderLinks() {
        return headerLinks;
    }

    /**
     * @param headerLinks map of key= name and value=url for links to be placed in header of page
     */
    public void setHeaderLinks(Map<String, String> headerLinks) {
        this.headerLinks = headerLinks;
    }

    public String getIframePageUrl() {
        return iframePageUrl;
    }

    public void setIframePageUrl(String iframePageUrl) {
        this.iframePageUrl = iframePageUrl;
    }

    /* (non-Javadoc)
     * @see com.vaadin.ui.UI#init(com.vaadin.server.VaadinRequest)
     */
    @Override
    public void init(VaadinRequest request) {
        if (iframePageUrl == null)
            throw new RuntimeException("iframePageUrl must not be null");

        m_request = request;

        m_rootLayout = new VerticalLayout();

        m_rootLayout = new VerticalLayout();
        m_rootLayout.setSizeFull();
        m_rootLayout.addStyleName("root-layout");
        setContent(m_rootLayout);

        // add header if provided
        if (headerComponent != null)
            m_rootLayout.addComponent(headerComponent);

        //add additional header page links if provided
        if (headerLinks != null) {
            // defining 2 horizontal layouts to force links to stay together
            HorizontalLayout horizontalLayout1 = new HorizontalLayout();
            horizontalLayout1.setWidth("100%");
            horizontalLayout1.setDefaultComponentAlignment(Alignment.TOP_RIGHT);
            HorizontalLayout horizontalLayout2 = new HorizontalLayout();
            horizontalLayout1.addComponent(horizontalLayout2);

            for (String name : headerLinks.keySet()) {
                String urlStr = headerLinks.get(name);
                ExternalResource urlResource = new ExternalResource(urlStr);
                Link link = new Link(name, urlResource);
                Label label = new Label("&nbsp;&nbsp;&nbsp;", ContentMode.HTML); // adds space between links
                horizontalLayout2.addComponent(link);
                horizontalLayout2.addComponent(label);
            }
            m_rootLayout.addComponent(horizontalLayout1);
        }

        ExternalResource iframPageResource = new ExternalResource(iframePageUrl);

        BrowserFrame browser = new BrowserFrame("", iframPageResource);
        browser.setWidth("100%");
        browser.setHeight("100%");
        m_rootLayout.addComponent(browser);

        // this forces the UI panel to use up all the available space below the header
        m_rootLayout.setExpandRatio(browser, 1.0f);

    }
}