edu.nrao.dss.client.forms.fields.GeneralCombo.java Source code

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Here is the source code for edu.nrao.dss.client.forms.fields.GeneralCombo.java

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// Copyright (C) 2011 Associated Universities, Inc. Washington DC, USA.
// 
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
// 
// Correspondence concerning GBT software should be addressed as follows:
//       GBT Operations
//       National Radio Astronomy Observatory
//       P. O. Box 2
//       Green Bank, WV 24944-0002 USA

package edu.nrao.dss.client.forms.fields;

import java.util.ArrayList;

import com.extjs.gxt.ui.client.event.Events;
import com.extjs.gxt.ui.client.event.FieldEvent;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.event.SelectionChangedEvent;
import com.extjs.gxt.ui.client.event.SelectionChangedListener;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.widget.form.ComboBox;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Timer;

public class GeneralCombo extends ComboBox<ComboModel> {
    private ListStore<ComboModel> comboStore = new ListStore<ComboModel>();

    public GeneralCombo() {

    }

    public GeneralCombo(String name, String label, ListStore<ComboModel> newComboStore) {
        comboStore = newComboStore;
        init(name, label);

    }

    public GeneralCombo(String name, String label, ArrayList<String> newComboStore) {
        for (String key : newComboStore) {
            comboStore.add(new ComboModel(key));
        }
        init(name, label);
    }

    public GeneralCombo(String name, String label) {
        comboStore = new ListStore<ComboModel>();
        init(name, label);
    }

    public ListStore<ComboModel> ListToStore(ArrayList<String> newComboStore) {
        ListStore<ComboModel> result = new ListStore<ComboModel>();

        for (String key : newComboStore) {
            // addOption(key);
            result.add(new ComboModel(key));
        }
        return result;
    }

    public void init(String name, String label) {
        setFieldLabel(label);
        setName(name);
        setId(name);
        setData("name", name);
        setStore(comboStore);
        setDisplayField("name");
        setValueField("name");
        setTypeAhead(true);
        setTriggerAction(TriggerAction.ALL);
        setEditable(false);
        setValue(this.getStore().getAt(0));
        //setAutoWidth(true);

        addSelectionChangedListener(new SelectionChangedListener<ComboModel>() {

            @Override
            public void selectionChanged(SelectionChangedEvent<ComboModel> se) {
                Element el = getElement();
                if (el != null) {
                    com.google.gwt.dom.client.Element parent = el.getParentElement();
                    if (parent != null && isRendered()) {
                        parent.addClassName("x-grid3-dirty-cell");
                    }
                }
            }

        });
    }

    public void addOption(String value) {
        ComboModel option = new ComboModel(value);
        this.getStore().add(option);
    }

    public void removeOption(ComboModel option) {
        this.getStore().remove(option);
    }

    public void initiateComboStore(ArrayList<String> array) {
        this.setStore(ListToStore(array));
        this.setValue(this.getStore().getAt(0));
        if (this.getStore().getCount() == 1) {
            // this.setVisible(false);
            this.disable();

        } else {
            this.enable();
            // this.setVisible(true);
        }

    }

    public String getSelected() {
        if (this.getSelection().size() > 0) {
            return this.getSelection().get(0).get("name");
        } else {
            return "NONE";
        }
    }

    public void setComboStore(ArrayList<String> options) {
        String value = getRawValue();
        reset();

        this.getStore().removeAll();
        for (String key : options) {
            key = key.replace("\"", "");
            ComboModel option = new ComboModel(key);
            this.getStore().add(option);
        }
        ComboModel newSelection = this.getStore().findModel("name", value);

        // if the currently selected is in new store select it else select first
        if (newSelection == null) {
            this.setValue(this.getStore().getAt(0));
        } else {
            this.setValue(newSelection);
        }

        // if there is only one option available disable it
        if (this.getStore().getCount() == 1) {
            // this.setVisible(false);
            this.disable();

        } else {
            this.enable();
            // this.setVisible(true);
        }

        if (newSelection == null) {
            getInputEl().setStyleAttribute("background-color", "#C11000");

            Timer timer = new Timer() {
                public void run() {
                    getInputEl().setStyleAttribute("background-color", "white");
                }
            };
            timer.schedule(2000);
        }
    }

}