started reimplement gui drawing in js - for now done just a base idea

src/org/klesun_model/AbstractModel.java

@@ -4,10 +4,12 @@
 // AbstractModel is used to store field list, since an interface can't have properties...
 
 
+import org.json.JSONException;
 import org.json.JSONObject;
 import org.klesun_model.field.Arr;
 import org.klesun_model.field.Field;
 import org.klesun_model.field.IField;
+import org.shmidusic.stuff.tools.Logger;
 
 import java.util.Collection;
 import java.util.LinkedHashMap;
@@ -19,6 +21,14 @@ public abstract class AbstractModel implements IModel
 {
 	private Map<String, IField> fieldStorage = new LinkedHashMap<>();
 
+	/** use this constructor when creating new object */
+	public AbstractModel() {}
+
+	/** use this constructor when restoring object from json */
+	public AbstractModel(JSONObject state) {
+		Logger.fatal("Please override this constructor!");
+	}
+
 	@Override
 	public String toString() {
 		return this.getJsonRepresentation().toString();

src/org/klesun_model/IKeyHandler.java

@@ -10,6 +10,7 @@
 // we handle event ONLY ONCE - in the deepest focused child (+ root) we found
 
 import org.shmidusic.Main;
+import org.shmidusic.stuff.tools.Logger;
 
 import javax.swing.*;
 import java.awt.event.KeyEvent;
@@ -37,6 +38,13 @@ default Explain handleKey(Combo combo)
 		return result != null ? result : new Explain(false, "No Action For This Combination").setImplicit(true);
 	}
 
+	/** @read "abstract" */
+	static LinkedHashMap<Combo, ContextAction> getActionMap()
+	{
+		Logger.fatal("This Class method is abstract - please override it in the subclass!");
+		return null;
+	}
+
 	// we use this to (de)generate [File,Menu,Edit]-like menu that would
 	// (with few esthetic exclusions) completely correspond whole model key mapping.
 	// the sad thing is, due to Java not supporting abstract class methods, we generate

src/org/klesun_model/IModel.java

@@ -36,6 +36,7 @@ default JSONObject getJsonRepresentation()
 		return dict;
 	}
 
+	/** read "protected" */
 	default IModel reconstructFromJson(JSONObject jsObject) throws JSONException
 	{
 		for (Map.Entry<String, IField> e: getFieldStorage().entrySet()) {