| /* |
| * Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| /* |
| * $Id: TabLabelRenderer.java,v 1.4 2004/11/14 07:33:15 tcfujii Exp $ |
| */ |
| |
| // TabLabelRenderer.java |
| |
| package components.renderkit; |
| |
| |
| import components.components.PaneSelectedEvent; |
| |
| import jakarta.faces.component.UIComponent; |
| import jakarta.faces.context.FacesContext; |
| import jakarta.faces.context.ResponseWriter; |
| |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.MissingResourceException; |
| |
| /** |
| * <B>TabLabelRenderer</B> is a class that renders a button control |
| * on an individual pane of a tabbed pane control. The button can |
| * be rendered with a label or an image as its face. |
| * |
| * <B>Lifetime And Scope</B> <P> |
| * |
| * @version $Id: TabLabelRenderer.java,v 1.4 2004/11/14 07:33:15 tcfujii Exp $ |
| */ |
| |
| public class TabLabelRenderer extends BaseRenderer { |
| |
| // |
| // Protected Constants |
| // |
| |
| // |
| // Class Variables |
| // |
| |
| // |
| // Instance Variables |
| // |
| |
| // Attribute Instance Variables |
| |
| |
| // Relationship Instance Variables |
| |
| // |
| // Constructors and Initializers |
| // |
| |
| public TabLabelRenderer() { |
| super(); |
| } |
| |
| // |
| // Class methods |
| // |
| |
| // |
| // General Methods |
| // |
| |
| /** |
| * Follow the UE Spec for Button: |
| * http://javaweb.sfbay.sun.com/engineering/jsue/j2ee/WebServices/ |
| * JavaServerFaces/uispecs/UICommand_Button.html |
| */ |
| protected String padLabel(String label) { |
| if (label.length() == 3) { |
| label = " " + label + " "; |
| } else if (label.length() == 2) { |
| label = " " + label + " "; |
| } |
| return label; |
| } |
| |
| |
| /** |
| * @return the image src if this component is configured to display |
| * an image label, null otherwise. |
| */ |
| |
| protected String getImageSrc(FacesContext context, |
| UIComponent component) { |
| String result = (String) component.getAttributes().get("image"); |
| |
| if (result != null) { |
| if (!result.startsWith("/")) { |
| result = "/" + result; |
| component.getAttributes().put("image", result); |
| } |
| } |
| |
| if (result == null) { |
| try { |
| result = getKeyAndLookupInBundle(context, component, |
| "imageKey"); |
| } catch (MissingResourceException e) { |
| // Do nothing since the absence of a resource is not an |
| // error. |
| } |
| } |
| if (result == null) { |
| return result; |
| } |
| String contextPath = context.getExternalContext() |
| .getRequestContextPath(); |
| StringBuffer sb = new StringBuffer(); |
| if (result.startsWith("/")) { |
| sb.append(contextPath); |
| } |
| sb.append(result); |
| return (context.getExternalContext().encodeResourceURL(sb.toString())); |
| } |
| |
| |
| protected String getLabel(FacesContext context, |
| UIComponent component) throws IOException { |
| String result = null; |
| |
| try { |
| result = getKeyAndLookupInBundle(context, component, "key"); |
| } catch (MissingResourceException e) { |
| // Do nothing since the absence of a resource is not an |
| // error. |
| } |
| if (null == result) { |
| result = (String) component.getAttributes().get("label"); |
| } |
| return result; |
| } |
| |
| |
| // |
| // Methods From Renderer |
| // |
| |
| public void decode(FacesContext context, UIComponent component) { |
| if (context == null || component == null) { |
| throw new NullPointerException( |
| "Null Faces context or component parameter"); |
| } |
| |
| // Was our command the one that caused this submission? |
| // we don' have to worry about getting the value from request parameter |
| // because we just need to know if this command caused the submission. We |
| // can get the command name by calling currentValue. This way we can |
| // get around the IE bug. |
| String clientId = component.getClientId(context); |
| Map requestParameterMap = (Map) context.getExternalContext(). |
| getRequestParameterMap(); |
| String value = (String) requestParameterMap.get(clientId); |
| if (value == null) { |
| if (requestParameterMap.get(clientId + ".x") == null && |
| requestParameterMap.get(clientId + ".y") == null) { |
| return; |
| } |
| } |
| |
| // Search for this component's parent "tab" component.. |
| UIComponent tabComponent = findParentForRendererType(component, "Tab"); |
| |
| // set the "tab" component's "id" in the event... |
| |
| tabComponent.queueEvent(new PaneSelectedEvent(component, |
| tabComponent.getId())); |
| |
| return; |
| } |
| |
| |
| public void encodeBegin(FacesContext context, UIComponent component) |
| throws IOException { |
| if (context == null || component == null) { |
| throw new NullPointerException( |
| "Null Faces context or component parameter"); |
| } |
| // suppress rendering if "rendered" property on the component is |
| // false. |
| if (!component.isRendered()) { |
| return; |
| } |
| |
| // Which button type (SUBMIT, RESET, or BUTTON) should we generate? |
| String paneTabLabelClass = null; |
| |
| ResponseWriter writer = context.getResponseWriter(); |
| |
| String imageSrc = getImageSrc(context, component); |
| String label = getLabel(context, component); |
| String type = "submit"; |
| |
| if (imageSrc != null || label != null) { |
| writer.write("<input type="); |
| if (null != imageSrc) { |
| writer.write("\"image\" src=\""); |
| writer.write(imageSrc); |
| writer.write("\""); |
| writer.write(" name=\""); |
| writer.write(component.getClientId(context)); |
| writer.write("\""); |
| } else { |
| writer.write("\""); |
| writer.write(type.toLowerCase()); |
| writer.write("\""); |
| writer.write(" name=\""); |
| writer.write(component.getClientId(context)); |
| writer.write("\""); |
| writer.write(" value=\""); |
| writer.write(padLabel(label)); |
| writer.write("\""); |
| } |
| } |
| |
| writer.write(Util.renderPassthruAttributes(context, component)); |
| writer.write(Util.renderBooleanPassthruAttributes(context, component)); |
| if (null != (paneTabLabelClass = (String) |
| component.getAttributes().get("paneTabLabelClass"))) { |
| writer.write(" class=\"" + paneTabLabelClass + "\" "); |
| } |
| writer.write(">"); |
| } |
| |
| |
| public void encodeChildren(FacesContext context, UIComponent component) |
| throws IOException { |
| if (context == null || component == null) { |
| throw new NullPointerException( |
| "Null Faces context or component parameter."); |
| } |
| } |
| |
| |
| public void encodeEnd(FacesContext context, UIComponent component) |
| throws IOException { |
| if (context == null || component == null) { |
| throw new NullPointerException( |
| "Null Faces context or component parameter."); |
| } |
| } |
| |
| |
| private UIComponent findParentForRendererType(UIComponent component, String rendererType) { |
| Object facetParent = null; |
| UIComponent currentComponent = component; |
| |
| // Search for an ancestor that is the specified renderer type; |
| while (null != (currentComponent = currentComponent.getParent())) { |
| if (currentComponent.getRendererType().equals(rendererType)) { |
| break; |
| } |
| } |
| return currentComponent; |
| } |
| |
| } // end of class TabLabelRenderer |
