org.drools.brms.client.rulelist.QuickFindWidget.java Source code

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Here is the source code for org.drools.brms.client.rulelist.QuickFindWidget.java

Source

package org.drools.brms.client.rulelist;
/*
 * Copyright 2005 JBoss Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import org.drools.brms.client.common.AutoCompleteTextBoxAsync;
import org.drools.brms.client.common.CompletionItemsAsync;
import org.drools.brms.client.common.CompletionItemsAsyncReturn;
import org.drools.brms.client.common.FormStyleLayout;
import org.drools.brms.client.common.GenericCallback;
import org.drools.brms.client.common.LoadingPopup;
import org.drools.brms.client.rpc.RepositoryServiceFactory;
import org.drools.brms.client.rpc.TableDataResult;
import org.drools.brms.client.rpc.TableDataRow;

import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.ClickListener;
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.HorizontalPanel;
import com.google.gwt.user.client.ui.KeyboardListener;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;

/**
 * This is for quickly finding an asset by name. Partial completion is allowed.
 * This also uses some auto completion magic.
 * @author Michael Neale
 */
public class QuickFindWidget extends Composite {

    private final FormStyleLayout layout;
    private final FlexTable listPanel;
    private final TextBox searchBox;
    private CheckBox archiveBox;
    private EditItemEvent editEvent;

    public QuickFindWidget(EditItemEvent editEvent) {
        layout = new FormStyleLayout("images/system_search.png", "");

        searchBox = new AutoCompleteTextBoxAsync(new CompletionItemsAsync() {

            public void getCompletionItems(String match, CompletionItemsAsyncReturn asyncReturn) {
                loadShortList(match, asyncReturn);

            }

        });
        searchBox.setStyleName("gwt-TextBox");

        this.editEvent = editEvent;
        HorizontalPanel srch = new HorizontalPanel();
        Button go = new Button("Go");
        go.addClickListener(new ClickListener() {
            public void onClick(Widget w) {
                updateList();
            }
        });

        srch.add(searchBox);
        srch.add(go);

        archiveBox = new CheckBox("Include archived items in list");
        archiveBox.setStyleName("small-Text");
        archiveBox.setChecked(false);

        layout.addAttribute("Find items with a name matching:", srch);
        layout.addRow(archiveBox);
        layout.addRow(new HTML("<hr/>"));

        listPanel = new FlexTable();
        listPanel.setWidget(0, 0, new HTML(
                "<img src='images/information.gif'/>&nbsp;Enter the name or part of a name. Alternatively, use the categories to browse."));
        layout.addRow(listPanel);

        listPanel.setStyleName("editable-Surface");

        searchBox.addKeyboardListener(getKeyboardListener());

        layout.setStyleName("quick-find");

        initWidget(layout);
    }

    /**
     * This will load a list of items as they are typing.
     */
    protected void loadShortList(String match, final CompletionItemsAsyncReturn returnItems) {
        RepositoryServiceFactory.getService().quickFindAsset(match, 5, archiveBox.isChecked(),
                new GenericCallback() {

                    public void onSuccess(Object data) {
                        TableDataResult result = (TableDataResult) data;
                        String[] items = new String[result.data.length];
                        for (int i = 0; i < result.data.length; i++) {
                            if (!result.data[i].id.equals("MORE")) {
                                items[i] = result.data[i].values[0];
                            }
                        }
                        returnItems.itemReturn(items);
                    }

                });

    }

    private KeyboardListener getKeyboardListener() {
        return new KeyboardListener() {
            public void onKeyDown(Widget arg0, char arg1, int arg2) {
            }

            public void onKeyPress(Widget arg0, char arg1, int arg2) {
            }

            public void onKeyUp(Widget arg0, char arg1, int arg2) {
                if (arg1 == KEY_ENTER) {

                    updateList();
                }
            }

        };
    }

    protected void updateList() {

        LoadingPopup.showMessage("Searching...");
        RepositoryServiceFactory.getService().quickFindAsset(searchBox.getText(), 15, archiveBox.isChecked(),
                new GenericCallback() {
                    public void onSuccess(Object data) {
                        TableDataResult result = (TableDataResult) data;
                        populateList(result);

                    }
                });

    }

    protected void populateList(TableDataResult result) {

        FlexTable data = new FlexTable();

        //if its only one, just open it...
        if (result.data.length == 1) {
            editEvent.open(result.data[0].id);
        }

        for (int i = 0; i < result.data.length; i++) {

            final TableDataRow row = result.data[i];
            if (row.id.equals("MORE")) {
                data.setWidget(i, 0, new HTML("<i>There are more items... try narrowing the search terms..</i>"));
                data.getFlexCellFormatter().setColSpan(i, 0, 3);
            } else {
                data.setWidget(i, 0, new Label(row.values[0]));
                data.setWidget(i, 1, new Label(row.values[1]));
                Button open = new Button("Open");
                open.addClickListener(new ClickListener() {
                    public void onClick(Widget w) {
                        editEvent.open(row.id);
                    }
                });

                data.setWidget(i, 2, open);
            }

        }

        data.setWidth("100%");
        listPanel.setWidget(0, 0, data);

        LoadingPopup.close();

    }

}