com.autentia.wuija.widget.AutoCompleteInputSelection.java Source code

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Here is the source code for com.autentia.wuija.widget.AutoCompleteInputSelection.java

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/**
 * Copyright 2008 Autentia Real Business Solutions S.L.
 * 
 * This file is part of Autentia WUIJA.
 * 
 * Autentia WUIJA is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 * 
 * Autentia WUIJA 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 Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with Autentia WUIJA. If not, see <http://www.gnu.org/licenses/>.
 */

package com.autentia.wuija.widget;

import java.util.ArrayList;
import java.util.List;

import javax.faces.event.ValueChangeEvent;
import javax.faces.model.SelectItem;

import org.apache.commons.lang.StringUtils;
import org.springframework.util.ObjectUtils;

import com.autentia.common.util.web.jsf.JsfUtils;
import com.autentia.wuija.widget.notification.ActionEvent;
import com.autentia.wuija.widget.notification.ActionListener;
import com.autentia.wuija.widget.notification.AutoCompleteCallBack;
import com.icesoft.faces.component.selectinputtext.SelectInputText;

public class AutoCompleteInputSelection<T> extends JsfWidget {

    private final static int NUMBER_OF_COLUMNS_IN_TABLE = 2;

    private final static int DEFAULT_NUMBER_OF_LINK_COLUMNS = 2;

    protected List<DinamicLink> linkList = new ArrayList<DinamicLink>();

    protected List<SelectItem> matchesList = new ArrayList<SelectItem>();

    protected AutoCompleteCallBack autoCompleteCallBack;

    private String labelId;

    private String onkeyup;

    private String onblur;

    protected String value;

    protected String actualTextTyped;

    private int rowsInTable = 10;

    private int linkColumns = DEFAULT_NUMBER_OF_LINK_COLUMNS;

    public AutoCompleteInputSelection(String labelId, AutoCompleteCallBack autoCompleteEventListener) {

        super();
        this.setLabelId(labelId);
        this.autoCompleteCallBack = autoCompleteEventListener;

    }

    public int getLinksColumnNumber() {
        return linkColumns;
    }

    public void setLinksColumnNumber(int number) {
        linkColumns = number;
    }

    public void addNewLinkToSelectedValues(final String newValue) {

        if (newValue != null && !"".equalsIgnoreCase(newValue)) {

            DinamicLink link = new DinamicLink(newValue, new ActionListener() {

                @Override
                public void processAction(ActionEvent linkEvent) {
                    linkList.remove(linkEvent.getSource());
                    autoCompleteCallBack.removeLinkEvent(newValue);
                }
            }, true);

            linkList.add(link);
            autoCompleteCallBack.insertLinkEvent(newValue);
        }
    }

    public void updateList(ValueChangeEvent event) {

        if (event.getComponent() instanceof SelectInputText) {
            SelectInputText autoComplete = (SelectInputText) event.getComponent();

            if (autoComplete.getValue() != null && !"".equalsIgnoreCase(autoComplete.getValue().toString())) {

                final String textTyped = autoComplete.getValue().toString();
                actualTextTyped = textTyped;

                if (autoComplete.getSelectedItem() != null
                        && textTyped.equalsIgnoreCase(autoComplete.getSelectedItem().getLabel().toString())) {

                    if (handleNewValue(autoComplete.getSelectedItem().getValue(),
                            autoComplete.getSelectedItem().getLabel())) {

                        addNewLink(autoComplete.getSelectedItem());

                        value = "";
                    }

                    JsfUtils.clearComponentAndRenderResponse(event.getComponent(), 1);

                } else {

                    matchesList = autoCompleteCallBack.generateSelectItemList(null, textTyped);

                }
            } else {
                fireEvent(new com.autentia.wuija.widget.notification.ValueChangeEvent(event, event.getOldValue(),
                        event.getNewValue()));
            }
        }
    }

    /**
     * 
     * 
     * @param selectedItem
     * @param label
     * @return Returns true if the new value must be added to the list of links.
     */
    protected boolean handleNewValue(Object selectedItem, String label) {
        return true;
    }

    protected void addNewLink(SelectItem selectItem) {
        addNewLinkToSelectedValues(selectItem.getValue().toString());
    }

    public List<String> getLabelsSelected() {

        final List<String> labels = new ArrayList<String>();
        for (DinamicLink link : linkList) {
            labels.add(link.getLabelId());
        }

        return labels;
    }

    public List<SelectItem> getList() {
        return matchesList;
    }

    public void setLinkList(List<DinamicLink> linkList) {
        this.linkList = linkList;
    }

    public List<DinamicLink> getLinkList() {
        return linkList;
    }

    public void setMatchesList(List<SelectItem> matchesList) {
        this.matchesList = matchesList;
    }

    public List<SelectItem> getMatchesList() {
        return matchesList;
    }

    public String getItemsSelectedListId() {
        return "itemsSelectedList_id" + ObjectUtils.getIdentityHexString(this);
    }

    public int getTableColumnsNumber() {
        return calculateNumberOfColumns();
    }

    private int calculateNumberOfColumns() {
        int initialNumberOfColumns = getInitialNumberOfColumns();
        if (StringUtils.isNotBlank(labelId)) {
            initialNumberOfColumns--;
        }
        return initialNumberOfColumns;
    }

    protected int getInitialNumberOfColumns() {
        return NUMBER_OF_COLUMNS_IN_TABLE;
    }

    public void setLabelId(String labelId) {
        this.labelId = labelId;
    }

    public String getLabelId() {
        return labelId;
    }

    public String getOnkeyup() {
        return onkeyup;
    }

    public void setOnkeyup(String onkeyup) {
        this.onkeyup = onkeyup;
    }

    public String getOnblur() {
        return onblur;
    }

    public void setOnblur(String onblur) {
        this.onblur = onblur;
    }

    public void reset() {
        linkList.clear();
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }

    public int getRowsInTable() {
        return rowsInTable;
    }

    public void setRowsInTable(int rowsInTable) {
        this.rowsInTable = rowsInTable;
    }

    @Override
    public String getRendererPath() {

        return RENDERER_PATH + "autoCompleteInputSelection.jspx";
    }

}