001 package de.deepamehta.plugins.boxrenderer.dom;
002
003 import de.deepamehta.plugins.topicmaps.ViewmodelCustomizer;
004 import de.deepamehta.plugins.topicmaps.service.TopicmapsService;
005
006 import de.deepamehta.core.Topic;
007 import de.deepamehta.core.model.CompositeValueModel;
008 import de.deepamehta.core.osgi.PluginActivator;
009 import de.deepamehta.core.service.PluginService;
010 import de.deepamehta.core.service.annotation.ConsumesService;
011
012 import java.util.logging.Logger;
013
014
015
016 public class BoxRendererPlugin extends PluginActivator implements ViewmodelCustomizer {
017
018 // ------------------------------------------------------------------------------------------------------- Constants
019
020 private static final String PROP_COLOR = "dm4.boxrenderer.color";
021 private static final String PROP_EXPANDED = "dm4.boxrenderer.expanded";
022
023 // ---------------------------------------------------------------------------------------------- Instance Variables
024
025 private Logger logger = Logger.getLogger(getClass().getName());
026
027 // -------------------------------------------------------------------------------------------------- Public Methods
028
029 // *** Hook Implementations ***
030
031 @Override
032 @ConsumesService("de.deepamehta.plugins.topicmaps.service.TopicmapsService")
033 public void serviceArrived(PluginService service) {
034 ((TopicmapsService) service).registerViewmodelCustomizer(this);
035 }
036
037 @Override
038 public void serviceGone(PluginService service) {
039 // Note: unregistering is important. Otherwise the Topicmaps plugin would hold a viewmodel
040 // customizer with a stale dms instance as soon as the Box Renderer is redeployed.
041 // A subsequent storeViewProperties() call (see below) would fail.
042 ((TopicmapsService) service).unregisterViewmodelCustomizer(this);
043 }
044
045 // *** ViewmodelCustomizer Implementation ***
046
047 @Override
048 public void enrichViewProperties(Topic topic, CompositeValueModel viewProps) {
049 boolean expanded = _enrichViewProperties(topic, viewProps);
050 if (expanded) {
051 topic.loadChildTopics("dm4.notes.text");
052 }
053 }
054
055 @Override
056 public void storeViewProperties(Topic topic, CompositeValueModel viewProps) {
057 storeColor(topic, viewProps);
058 storeExpanded(topic, viewProps);
059 }
060
061 // ------------------------------------------------------------------------------------------------- Private Methods
062
063 private boolean _enrichViewProperties(Topic topic, CompositeValueModel viewProps) {
064 // 1) color
065 if (topic.hasProperty(PROP_COLOR)) {
066 String color = (String) topic.getProperty(PROP_COLOR);
067 viewProps.put(PROP_COLOR, color);
068 }
069 // 2) expanded
070 boolean expanded = false;
071 if (topic.getTypeUri().equals("dm4.notes.note")) {
072 if (topic.hasProperty(PROP_EXPANDED)) {
073 expanded = (Boolean) topic.getProperty(PROP_EXPANDED);
074 viewProps.put(PROP_EXPANDED, expanded);
075 }
076 }
077 return expanded;
078 }
079
080 // ---
081
082 private void storeColor(Topic topic, CompositeValueModel viewProps) {
083 if (viewProps.has(PROP_COLOR)) {
084 String color = viewProps.getString(PROP_COLOR);
085 topic.setProperty(PROP_COLOR, color, false); // addToIndex = false
086 }
087 }
088
089 private void storeExpanded(Topic topic, CompositeValueModel viewProps) {
090 if (viewProps.has(PROP_EXPANDED)) {
091 boolean expanded = viewProps.getBoolean(PROP_EXPANDED);
092 topic.setProperty(PROP_EXPANDED, expanded, false); // addToIndex = false
093 // ### TODO: store the expanded flag *per-topicmap*
094 }
095 }
096 }