com.ikon.frontend.client.widget.searchin.ControlSearchIn.java Source code

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Here is the source code for com.ikon.frontend.client.widget.searchin.ControlSearchIn.java

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/**
 *  openkm, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2013  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  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.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.ikon.frontend.client.widget.searchin;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.ikon.frontend.client.Main;
import com.ikon.frontend.client.bean.GWTQueryParams;
import com.ikon.frontend.client.util.OKMBundleResources;

/**
 * ControlSearchIn
 * 
 * @author jllort
 *
 */
public class ControlSearchIn extends Composite {
    private VerticalPanel controlPanel;
    private HTML textResults;
    private Image previous;
    private Image next;
    private FlexTable table;
    private int offset = 0;
    private int limit = 10;
    private boolean previousEnabled = false; // Indicates if button is enabled
    private boolean nextEnabled = false; // Indicates if button is enabled
    private GWTQueryParams gwtParams; // Actual search values
    private String statement; // Simple search valeu
    private long total = 0;

    public ControlSearchIn() {
        controlPanel = new VerticalPanel();
        table = new FlexTable();
        textResults = new HTML(Main.i18n("search.results"));
        previous = new Image(OKMBundleResources.INSTANCE.previous());
        next = new Image(OKMBundleResources.INSTANCE.next());

        previous.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                if (previousEnabled) {
                    offset -= limit;
                    if (gwtParams != null) {
                        Main.get().mainPanel.search.searchBrowser.searchResult.findPaginated(gwtParams, offset,
                                limit);
                    } else {
                        Main.get().mainPanel.search.searchBrowser.searchResult.findSimpleQueryPaginated(statement,
                                offset, limit);
                    }
                }
            }
        });
        previous.setStyleName("okm-Hyperlink");

        next.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                if (nextEnabled) {
                    offset += limit;
                    if (gwtParams != null) {
                        Main.get().mainPanel.search.searchBrowser.searchResult.findPaginated(gwtParams, offset,
                                limit);
                    } else {
                        Main.get().mainPanel.search.searchBrowser.searchResult.findSimpleQueryPaginated(statement,
                                offset, limit);
                    }
                }
            }
        });
        next.setStyleName("okm-Hyperlink");

        table.setWidget(0, 0, textResults);
        table.setHTML(0, 1, "   ");
        table.setWidget(0, 2, previous);
        table.setHTML(0, 3, "");
        table.setWidget(0, 4, next);

        controlPanel.add(table);

        controlPanel.setVisible(false); // Initially not shows only when search has been executed
        controlPanel.setStyleName("okm-DisableSelect");

        initWidget(controlPanel);
    }

    /**
     * Executes the search
     */
    public void executeSearch(GWTQueryParams gwtParams, int limit) {
        this.gwtParams = gwtParams;
        this.statement = null;
        this.limit = limit;
        offset = 0;
        Main.get().mainPanel.search.searchBrowser.searchResult.findPaginated(gwtParams, offset, limit);
    }

    /**
     * Executes the search
     */
    public void executeSearch(String statement, int limit) {
        this.gwtParams = null;
        this.statement = statement;
        this.limit = limit;
        offset = 0;
        Main.get().mainPanel.search.searchBrowser.searchResult.findSimpleQueryPaginated(statement, offset, limit);
    }

    /**
     * Refresh control values
     * 
     * @param total 
     */
    public void refreshControl(long total) {
        this.total = total;
        textResults.setHTML(Main.i18n("search.results") + " : " + total);

        if (total == 0) {
            previousEnabled = false;
            nextEnabled = false;
            table.setHTML(0, 3, "");
            setVisible(false);
        } else {

            if (offset == 0) {
                previousEnabled = false;
            } else {
                previousEnabled = true;
            }

            if ((offset + limit) >= total) {
                nextEnabled = false;
                table.setHTML(0, 3, (offset + 1) + " " + Main.i18n("search.to") + " " + total);
            } else {
                nextEnabled = true;
                table.setHTML(0, 3, (offset + 1) + " " + Main.i18n("search.to") + " " + (offset + limit));
            }
            setVisible(true);
        }

        evaluateIcons(); // Evaluates back / forward icons
    }

    /**
     * Refreshing language
     */
    public void langRefresh() {
        refreshControl(total);
    }

    /**
     * Evaluate icons image
     */
    public void evaluateIcons() {
        if (previousEnabled) {
            previous.setResource(OKMBundleResources.INSTANCE.previous());
        } else {
            previous.setResource(OKMBundleResources.INSTANCE.previousDisabled());
        }

        if (nextEnabled) {
            next.setResource(OKMBundleResources.INSTANCE.next());
        } else {
            next.setResource(OKMBundleResources.INSTANCE.nextDisabled());
        }
    }
}