Java tutorial
/** * OpenKM, Open Document Management System (http://www.openkm.com) * Copyright (c) 2006-2015 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.openkm.frontend.client.widget.form; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.dom.client.KeyUpEvent; import com.google.gwt.event.dom.client.KeyUpHandler; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.DialogBox; import com.google.gwt.user.client.ui.FlexTable; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.HasAlignment; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.ScrollPanel; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.VerticalPanel; import com.openkm.frontend.client.Main; import com.openkm.frontend.client.bean.GWTKeyValue; import com.openkm.frontend.client.bean.form.GWTSuggestBox; import com.openkm.frontend.client.service.OKMKeyValueService; import com.openkm.frontend.client.service.OKMKeyValueServiceAsync; import com.openkm.frontend.client.util.MessageFormat; import com.openkm.frontend.client.util.Util; import com.openkm.frontend.client.widget.searchin.HasPropertyHandler; /** * DatabaseRecordSelectPopup * * @author jllort * */ public class DatabaseRecordSelectPopup extends DialogBox { private final OKMKeyValueServiceAsync keyValueService = (OKMKeyValueServiceAsync) GWT .create(OKMKeyValueService.class); private VerticalPanel vPanel; private ScrollPanel scrollDatabaseRecordPanel; private TextBox record; private FlexTable recordTabla; private Button cancelButton; private Button acceptButton; private int selectedRow = -1; private Map<Integer, GWTKeyValue> rowKeyValueMap; private List<String> tables; private Status status; private GWTSuggestBox suggestBox; /** * DatabaseRecordSelectPopup */ public DatabaseRecordSelectPopup(final GWTSuggestBox suggestBox, final HasDatabaseRecord databaseRecord, final HasPropertyHandler propertyHandler) { // Establishes auto-close when click outside super(false, true); this.suggestBox = suggestBox; tables = new ArrayList<String>(); if (suggestBox.getTable() != null) { tables.add(suggestBox.getTable()); } setText(suggestBox.getDialogTitle()); vPanel = new VerticalPanel(); vPanel.setWidth("300"); vPanel.setHeight("200"); record = new TextBox(); record.setWidth("292"); record.addKeyUpHandler(new KeyUpHandler() { @Override public void onKeyUp(KeyUpEvent event) { if (record.getText().length() >= suggestBox.getFilterMinLen()) { findFilteredDatabaseRecords(); } else { removeAllRows(); } } }); record.setStyleName("okm-Input"); recordTabla = new FlexTable(); recordTabla.setWidth("100%"); recordTabla.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { markSelectedRow(recordTabla.getCellForEvent(event).getRowIndex()); acceptButton.setEnabled(true); } }); scrollDatabaseRecordPanel = new ScrollPanel(recordTabla); scrollDatabaseRecordPanel.setPixelSize(290, 150); scrollDatabaseRecordPanel.setStyleName("okm-Popup-text"); cancelButton = new Button(Main.i18n("button.cancel"), new ClickHandler() { @Override public void onClick(ClickEvent event) { hide(); } }); cancelButton.setStyleName("okm-NoButton"); acceptButton = new Button(Main.i18n("button.accept"), new ClickHandler() { @Override public void onClick(ClickEvent event) { if (selectedRow >= 0) { databaseRecord.setKeyValue(rowKeyValueMap.get(selectedRow)); // Updating suggestbox values ( for when value will be update ) suggestBox.setValue(rowKeyValueMap.get(selectedRow).getKey()); suggestBox.setText(rowKeyValueMap.get(selectedRow).getValue()); if (propertyHandler != null) { propertyHandler.metadataValueChanged(); } } hide(); } }); acceptButton.setEnabled(false); acceptButton.setStyleName("okm-YesButton"); HorizontalPanel hPanel = new HorizontalPanel(); hPanel.add(cancelButton); hPanel.add(new HTML(" ")); hPanel.add(acceptButton); if (suggestBox.getFilterMinLen() > 0) { HorizontalPanel hInfoPanel = new HorizontalPanel(); HTML filterInfo = new HTML(MessageFormat.format(Main.i18n("form.manager.suggestbox.min.filter"), suggestBox.getFilterMinLen())); HTML space = Util.hSpace("5"); hInfoPanel.add(filterInfo); hInfoPanel.add(space); vPanel.add(hInfoPanel); vPanel.setCellHorizontalAlignment(hInfoPanel, HasAlignment.ALIGN_RIGHT); } vPanel.add(record); vPanel.add(scrollDatabaseRecordPanel); vPanel.add(hPanel); vPanel.setCellHeight(record, "25"); vPanel.setCellHeight(hPanel, "25"); vPanel.setCellVerticalAlignment(record, HasAlignment.ALIGN_MIDDLE); vPanel.setCellVerticalAlignment(hPanel, HasAlignment.ALIGN_MIDDLE); vPanel.setCellHorizontalAlignment(record, HasAlignment.ALIGN_CENTER); vPanel.setCellHorizontalAlignment(scrollDatabaseRecordPanel, HasAlignment.ALIGN_CENTER); vPanel.setCellHorizontalAlignment(hPanel, HasAlignment.ALIGN_CENTER); status = new Status(this); status.setStyleName("okm-StatusPopup"); super.hide(); setWidget(vPanel); } /** * findFilteredDatabaseRecords */ private void findFilteredDatabaseRecords() { removeAllRows(); selectedRow = -1; record.setReadOnly(true); acceptButton.setEnabled(false); status.setGetDatabaseRecords(); keyValueService.getKeyValues(tables, MessageFormat.format(suggestBox.getFilterQuery(), record.getText()), new AsyncCallback<List<GWTKeyValue>>() { @Override public void onSuccess(List<GWTKeyValue> result) { rowKeyValueMap = new HashMap<Integer, GWTKeyValue>(); for (GWTKeyValue keyValue : result) { int row = recordTabla.getRowCount(); rowKeyValueMap.put(row, keyValue); recordTabla.setHTML(row, 0, keyValue.getValue()); } record.setReadOnly(false); status.unsetGetDatabaseRecords(); } @Override public void onFailure(Throwable caught) { status.unsetGetDatabaseRecords(); Main.get().showError("getKeyValues", caught); } }); } /* (non-Javadoc) * @see com.google.gwt.user.client.ui.DialogBox#show() */ public void show() { removeAllRows(); record.setText(""); record.setReadOnly(false); acceptButton.setEnabled(false); rowKeyValueMap = new HashMap<Integer, GWTKeyValue>(); super.show(); record.setFocus(true); // Case must show by default all values if (suggestBox.getFilterMinLen() == 0) { findFilteredDatabaseRecords(); } } /** * removeAllRows */ private void removeAllRows() { recordTabla.removeAllRows(); selectedRow = -1; } /** * markSelectedRow * * @param row */ private void markSelectedRow(int row) { // And row must be other than the selected one if (row != selectedRow) { styleRow(selectedRow, false); styleRow(row, true); selectedRow = row; } } /** * Change the style row selected or unselected * * @param row The row afected * @param selected Indicates selected unselected row */ private void styleRow(int row, boolean selected) { if (row >= 0) { if (selected) { recordTabla.getRowFormatter().addStyleName(row, "okm-Table-SelectedRow"); } else { recordTabla.getRowFormatter().removeStyleName(row, "okm-Table-SelectedRow"); } } } /** * langRefresh */ public void langRefresh() { cancelButton.setHTML(Main.i18n("button.cancel")); acceptButton.setHTML(Main.i18n("button.accept")); } }