org.nakedobjects.nos.client.dnd.content.ObjectParameterImpl Maven / Gradle / Ivy

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package org.nakedobjects.nos.client.dnd.content;

import org.nakedobjects.noa.adapter.Naked;
import org.nakedobjects.noa.adapter.NakedObject;
import org.nakedobjects.noa.reflect.Consent;
import org.nakedobjects.noa.spec.NakedObjectSpecification;
import org.nakedobjects.nof.core.reflect.Allow;
import org.nakedobjects.nof.core.reflect.Veto;
import org.nakedobjects.nof.core.util.DebugString;
import org.nakedobjects.nof.core.util.ToString;
import org.nakedobjects.nos.client.dnd.ObjectParameter;
import org.nakedobjects.nos.client.dnd.UserActionSet;
import org.nakedobjects.nos.client.dnd.View;
import org.nakedobjects.nos.client.dnd.Workspace;
import org.nakedobjects.nos.client.dnd.action.AbstractUserAction;
import org.nakedobjects.nos.client.dnd.drawing.Location;


public class ObjectParameterImpl extends AbstractObjectContent implements ObjectParameter {
    private final NakedObject object;
    private final String name;
    private final NakedObjectSpecification specification;
    private final ActionHelper invocation;
    private final int i;
    private final boolean isRequired;
    private final NakedObject[] options;
    private final String description;

    public ObjectParameterImpl(
            final String name,
            final String description,
            final Naked naked,
            final NakedObjectSpecification specification,
            final boolean required,
            final NakedObject[] options,
            final int i,
            final ActionHelper invocation) {
        this.name = name;
        this.description = description;
        this.specification = specification;
        this.isRequired = required;
        this.options = options;
        this.i = i;
        this.invocation = invocation;
        object = (NakedObject) naked;
    }

    public ObjectParameterImpl(final ObjectParameterImpl content, final NakedObject object) {
        name = content.name;
        description = content.description;
        specification = content.specification;
        isRequired = content.isRequired;
        options = content.options;
        i = content.i;
        invocation = content.invocation;
        this.object = object;
    }

    public Consent canClear() {
        return Allow.DEFAULT;
    }

    public Consent canSet(final NakedObject dragSource) {
        if (dragSource.getSpecification().isOfType(specification)) {
            return Allow.DEFAULT;
        } else {
            return new Veto("Object must be " + specification.getShortName());
        }
    }

    public void clear() {
        setObject(null);
    }

    public void debugDetails(final DebugString debug) {
        debug.appendln("name", name);
        debug.appendln("required", isRequired);
        debug.appendln("object", object);
    }

    public Naked getNaked() {
        return object;
    }

    public NakedObject getObject() {
        return object;
    }

    public Naked[] getOptions() {
        return options;
    }

    public boolean isObject() {
        return true;
    }

    public boolean isRequired() {
        return isRequired;
    }

    public boolean isPersistable() {
        return false;
    }

    public boolean isOptionEnabled() {
        return options != null;
    }

    public boolean isTransient() {
        return object != null && object.getResolveState().isTransient();
    }

    public void contentMenuOptions(final UserActionSet options) {
        if (object != null) {
            options.add(new AbstractUserAction("Clear parameter") {

                public void execute(final Workspace workspace, final View view, final Location at) {
                    clear();
                    view.getParent().invalidateContent();
                }
            });

            OptionFactory.addObjectMenuOptions(object, options);
        } else {
            OptionFactory.addCreateOptions(specification, options);

        }

    }

    public void setObject(final NakedObject object) {
        invocation.setParameter(i, object);
    }

    public String title() {
        return object == null ? "" : object.titleString();
    }

    public String toString() {
        ToString toString = new ToString(this);
        toString.append("label", name);
        toString.append("required", isRequired);
        toString.append("spec", getSpecification().getFullName());
        toString.append("object", object == null ? "null" : object.titleString());
        return toString.toString();
    }

    public String getParameterName() {
        return name;
    }

    public NakedObjectSpecification getSpecification() {
        return specification;
    }

    public String getDescription() {
        String title = object == null ? "" : ": " + object.titleString();
        String type = name.indexOf(specification.getShortName()) == -1 ? " (" + specification.getShortName() + ")" : "";
        return name + type + title + " " + description;
    }

    public String getHelp() {
        return invocation.getHelp();
    }

    public String getId() {
        return null;
    }
}
// Copyright (c) Naked Objects Group Ltd.