001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019 020 package org.apache.myfaces.tobago.component; 021 022 import org.apache.commons.logging.Log; 023 import org.apache.commons.logging.LogFactory; 024 import static org.apache.myfaces.tobago.TobagoConstants.ATTR_INNER_HEIGHT; 025 import static org.apache.myfaces.tobago.TobagoConstants.ATTR_INNER_WIDTH; 026 import static org.apache.myfaces.tobago.TobagoConstants.FACET_LAYOUT; 027 import org.apache.myfaces.tobago.renderkit.LayoutRenderer; 028 import org.apache.myfaces.tobago.util.LayoutUtil; 029 030 import javax.faces.component.UIComponent; 031 import javax.faces.component.UIComponentBase; 032 import javax.faces.context.FacesContext; 033 import java.io.IOException; 034 035 public abstract class UILayout extends UIComponentBase { 036 037 private static final Log LOG = LogFactory.getLog(UILayout.class); 038 039 public void layoutBegin(FacesContext facesContext, UIComponent component) { 040 // prepare component to render 041 prepareDimension(facesContext, component); 042 043 } 044 045 046 public static void prepareDimension(FacesContext facesContext, UIComponent component) { 047 // LOG.info("prepareDimension for " + component.getClientId(facesContext) + " is " + component.getRendererType()); 048 setInnerWidth(facesContext, component); 049 setInnerHeight(facesContext, component); 050 } 051 052 private static void setInnerWidth(FacesContext facesContext, UIComponent component) { 053 Integer layoutWidth = LayoutUtil.getLayoutWidth(component); 054 if (layoutWidth != null) { 055 int space = layoutWidth.intValue(); 056 int innerSpace = LayoutUtil.getInnerSpace(facesContext, component, space, true); 057 component.getAttributes().put(ATTR_INNER_WIDTH, Integer.valueOf(innerSpace)); 058 } 059 } 060 061 private static void setInnerHeight(FacesContext facesContext, UIComponent component) { 062 Integer layoutHeight = LayoutUtil.getLayoutHeight(component); 063 if (layoutHeight != null) { 064 int space = layoutHeight.intValue(); 065 int innerSpace = LayoutUtil.getInnerSpace(facesContext, component, space, false); 066 component.getAttributes().put(ATTR_INNER_HEIGHT, Integer.valueOf(innerSpace)); 067 } 068 } 069 070 071 public void encodeChildrenOfComponent(FacesContext facesContext, UIComponent component) throws IOException { 072 ((LayoutRenderer) getRenderer(facesContext)).encodeChildrenOfComponent(facesContext, component); 073 } 074 075 076 public static UILayout getLayout(UIComponent component) { 077 UILayout layout = (UILayout) component.getFacet(FACET_LAYOUT); 078 if (layout == null) { 079 if (component instanceof LayoutProvider) { 080 layout = ((LayoutProvider) component).provideLayout(); 081 } else { 082 layout = UIDefaultLayout.getInstance(); 083 } 084 } 085 return layout; 086 } 087 }