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.ade.galleries.client.CmsGalleryConfigurationJSO; import org.opencms.ade.galleries.client.ui.CmsGalleryField; import org.opencms.gwt.client.util.CmsDomUtil; 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.logical.shared.HasResizeHandlers; import com.google.gwt.event.logical.shared.ResizeHandler; 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; /** * * */ public class CmsFileWidget extends Composite implements I_CmsEditWidget, HasResizeHandlers { /** Value of the activation. */ private boolean m_active = true; /** If files should selectable. */ private boolean m_includeFiles; /** The link selector. */ private CmsGalleryField m_linkSelect; /** The reference path. */ private String m_referencePath; /** If the site selector should be visible. */ private boolean m_showSiteSelector; /** The start site. */ private String m_startSite; /** The resource types. */ private String m_types; /** * Constructs an CmsComboWidget with the in XSD schema declared configuration.<p> * * @param openerTitle the gallery opener title * @param config the widget configuration string */ public CmsFileWidget(String openerTitle, String config) { m_linkSelect = new CmsGalleryField(CmsGalleryConfigurationJSO.parseConfiguration(config), false); m_linkSelect.setGalleryOpenerTitle(openerTitle); m_linkSelect.addValueChangeHandler(new ValueChangeHandler<String>() { public void onValueChange(ValueChangeEvent<String> event) { fireChangeEvent(); } }); // All composites must call initWidget() in their constructors. initWidget(m_linkSelect); m_linkSelect.addFocusHandler(new FocusHandler() { public void onFocus(FocusEvent event) { CmsDomUtil.fireFocusEvent(CmsFileWidget.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.HasResizeHandlers#addResizeHandler(com.google.gwt.event.logical.shared.ResizeHandler) */ public HandlerRegistration addResizeHandler(ResizeHandler handler) { return m_linkSelect.addResizeHandler(handler); } /** * @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_linkSelect.getFormValueAsString()); } /** * @see com.google.gwt.user.client.ui.HasValue#getValue() */ public String getValue() { return m_linkSelect.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) { return (m_linkSelect != null) && (m_linkSelect.getPopup() != null) && m_linkSelect.getPopup().isShowing() && m_linkSelect.getPopup().getContainer().getElement().isOrHasChild(element); } /** * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setActive(boolean) */ public void setActive(boolean active) { if (m_active == active) { return; } m_active = active; if (active) { fireChangeEvent(); } } /** * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setName(java.lang.String) */ public void setName(String name) { m_linkSelect.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_linkSelect.setFormValueAsString(value); if (fireEvents) { fireChangeEvent(); } } /** * Parses the configuration.<p> * * @param configuration the widget configuration */ private native void parseConfiguration(String configuration)/*-{ var config = @org.opencms.gwt.client.util.CmsDomUtil::parseJSON(Ljava/lang/String;)(configuration); if (config.includefiles) this.@org.opencms.acacia.client.widgets.CmsFileWidget::m_includeFiles = config.includefiles; if (config.showsiteselector) this.@org.opencms.acacia.client.widgets.CmsFileWidget::m_showSiteSelector = config.showsiteselector; if (config.startsite) this.@org.opencms.acacia.client.widgets.CmsFileWidget::m_startSite = config.startsite; if (config.referencepath) this.@org.opencms.acacia.client.widgets.CmsFileWidget::m_referencePath = config.referencepath; }-*/; }