/**
* Copyright (c) 2014-2017 by the respective copyright holders.
* 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
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.eclipse.smarthome.ui.basic.internal.render;
import org.apache.commons.lang.StringUtils;
import org.eclipse.emf.common.util.EList;
import org.eclipse.smarthome.core.items.GroupItem;
import org.eclipse.smarthome.core.items.Item;
import org.eclipse.smarthome.core.items.ItemNotFoundException;
import org.eclipse.smarthome.core.library.items.RollershutterItem;
import org.eclipse.smarthome.core.library.types.OnOffType;
import org.eclipse.smarthome.core.types.State;
import org.eclipse.smarthome.model.sitemap.Mapping;
import org.eclipse.smarthome.model.sitemap.Switch;
import org.eclipse.smarthome.model.sitemap.Widget;
import org.eclipse.smarthome.ui.basic.render.RenderException;
import org.eclipse.smarthome.ui.basic.render.WidgetRenderer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This is an implementation of the {@link WidgetRenderer} interface, which
* can produce HTML code for Switch widgets.
*
* @author Kai Kreuzer - Initial contribution and API
* @author Vlad Ivanov - BasicUI changes
*
*/
public class SwitchRenderer extends AbstractWidgetRenderer {
private final Logger logger = LoggerFactory.getLogger(SwitchRenderer.class);
/**
* {@inheritDoc}
*/
@Override
public boolean canRender(Widget w) {
return w instanceof Switch;
}
/**
* {@inheritDoc}
*/
@Override
public EList<Widget> renderWidget(Widget w, StringBuilder sb) throws RenderException {
Switch s = (Switch) w;
String snippetName = null;
Item item;
try {
item = itemUIRegistry.getItem(w.getItem());
if (s.getMappings().size() == 0) {
if (item instanceof RollershutterItem) {
snippetName = "rollerblind";
} else if (item instanceof GroupItem && ((GroupItem) item).getBaseItem() instanceof RollershutterItem) {
snippetName = "rollerblind";
} else {
snippetName = "switch";
}
} else {
snippetName = "buttons";
}
} catch (ItemNotFoundException e) {
logger.warn("Cannot determine item type of '{}'", w.getItem(), e);
snippetName = "switch";
}
String snippet = getSnippet(snippetName);
State state = itemUIRegistry.getState(w);
snippet = preprocessSnippet(snippet, w);
snippet = StringUtils.replace(snippet, "%count%", Integer.toString(s.getMappings().size()));
if (s.getMappings().size() == 0) {
if (state.equals(OnOffType.ON)) {
snippet = snippet.replaceAll("%checked%", "checked=true");
} else {
snippet = snippet.replaceAll("%checked%", "");
}
} else {
StringBuilder buttons = new StringBuilder();
for (Mapping mapping : s.getMappings()) {
String button = getSnippet("button");
button = StringUtils.replace(button, "%item%", w.getItem());
button = StringUtils.replace(button, "%cmd%", mapping.getCmd());
button = StringUtils.replace(button, "%label%", escapeHtml(mapping.getLabel()));
if (s.getMappings().size() > 1 && state.toString().equals(mapping.getCmd())) {
button = StringUtils.replace(button, "%class%", "mdl-button--accent");
} else {
button = StringUtils.replace(button, "%class%", "mdl-button");
}
buttons.append(button);
}
snippet = StringUtils.replace(snippet, "%buttons%", buttons.toString());
}
// Process the color tags
snippet = processColor(w, snippet);
sb.append(snippet);
return null;
}
}