Java tutorial
/* * This library is part of OpenCms - * the Open Source Content Management System * * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com) * * This library 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; either * version 2.1 of the License, or (at your option) any later version. * * This library 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. * * For further information about Alkacon Software, please see the * company website: http://www.alkacon.com * * For further information about OpenCms, please see the * project website: http://www.opencms.org * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package org.opencms.acacia.client.widgets; import org.opencms.acacia.client.css.I_CmsWidgetsLayoutBundle; import org.opencms.gwt.client.ui.input.datebox.CmsDateBox; import org.opencms.gwt.client.util.CmsDomUtil; import java.util.Date; import com.google.gwt.dom.client.Element; import com.google.gwt.event.dom.client.FocusEvent; import com.google.gwt.event.dom.client.FocusHandler; import com.google.gwt.event.dom.client.KeyCodes; import com.google.gwt.event.dom.client.KeyPressEvent; import com.google.gwt.event.dom.client.KeyPressHandler; import com.google.gwt.event.logical.shared.ValueChangeEvent; import com.google.gwt.event.logical.shared.ValueChangeHandler; import com.google.gwt.event.shared.HandlerRegistration; import com.google.gwt.user.client.ui.Composite; /** * Provides a DHTML calendar widget, for use on a widget dialog.<p> * * */ public class CmsCalendarWidget extends Composite implements I_CmsEditWidget { /** Value of the activation. */ private boolean m_active = true; /** The global select box. */ private CmsDateBox m_dateBox = new CmsDateBox(); /** * Constructs an CmsComboWidget with the in XSD schema declared configuration.<p> * @param config The configuration string given from OpenCms XSD. */ public CmsCalendarWidget(String config) { m_dateBox.setAllowInvalidValue(true); // All composites must call initWidget() in their constructors. initWidget(m_dateBox); m_dateBox.getTextField().getTextBoxContainer() .addStyleName(I_CmsWidgetsLayoutBundle.INSTANCE.widgetCss().calendarStyle()); ValueChangeHandler<Date> test = new ValueChangeHandler<Date>() { public void onValueChange(ValueChangeEvent<Date> arg0) { fireChangeEvent(); } }; m_dateBox.addValueChangeHandler(test); m_dateBox.addKeyPressHandler(new KeyPressHandler() { public void onKeyPress(KeyPressEvent arg0) { int keyCode = arg0.getUnicodeCharCode(); if (keyCode == 0) { // Probably Firefox keyCode = arg0.getNativeEvent().getKeyCode(); } if (keyCode == KeyCodes.KEY_ENTER) { fireChangeEvent(); } } }); m_dateBox.getTextField().addFocusHandler(new FocusHandler() { public void onFocus(FocusEvent event) { CmsDomUtil.fireFocusEvent(CmsCalendarWidget.this); } }); } /** * @see com.google.gwt.event.dom.client.HasFocusHandlers#addFocusHandler(com.google.gwt.event.dom.client.FocusHandler) */ public HandlerRegistration addFocusHandler(FocusHandler handler) { return addDomHandler(handler, FocusEvent.getType()); } /** * @see com.google.gwt.event.logical.shared.HasValueChangeHandlers#addValueChangeHandler(com.google.gwt.event.logical.shared.ValueChangeHandler) */ public HandlerRegistration addValueChangeHandler(ValueChangeHandler<String> handler) { return addHandler(handler, ValueChangeEvent.getType()); } /** * Represents a value change event.<p> * */ public void fireChangeEvent() { ValueChangeEvent.fire(this, m_dateBox.getFormValueAsString()); } /** * @see com.google.gwt.user.client.ui.HasValue#getValue() */ public String getValue() { return m_dateBox.getFormValueAsString(); } /** * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#isActive() */ public boolean isActive() { return m_active; } /** * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#onAttachWidget() */ public void onAttachWidget() { super.onAttach(); } /** * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#owns(com.google.gwt.dom.client.Element) */ public boolean owns(Element element) { // TODO implement this in case we want the delete behavior for optional fields return false; } /** * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setActive(boolean) */ public void setActive(boolean active) { if (active == m_active) { return; } m_active = active; if (m_active) { getElement() .removeClassName(org.opencms.acacia.client.css.I_CmsLayoutBundle.INSTANCE.form().inActive()); getElement().focus(); } else { getElement().addClassName(org.opencms.acacia.client.css.I_CmsLayoutBundle.INSTANCE.form().inActive()); } if (active) { fireChangeEvent(); } } /** * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setName(java.lang.String) */ public void setName(String name) { m_dateBox.setName(name); } /** * @see com.google.gwt.user.client.ui.HasValue#setValue(java.lang.Object) */ public void setValue(String value) { setValue(value, false); } /** * @see com.google.gwt.user.client.ui.HasValue#setValue(java.lang.Object, boolean) */ public void setValue(String value, boolean fireEvents) { m_dateBox.setFormValueAsString(value); if (fireEvents) { fireChangeEvent(); } } }