001 /* 002 * Copyright (C) 2010 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 020 package org.crsh.shell.ui; 021 022 import groovy.util.BuilderSupport; 023 import org.crsh.text.Color; 024 import org.crsh.text.Decoration; 025 026 import java.util.ArrayList; 027 import java.util.List; 028 import java.util.Map; 029 030 /** 031 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> 032 * @version $Revision$ 033 */ 034 public class UIBuilder extends BuilderSupport { 035 036 /** . */ 037 private final List<Element> elements; 038 039 public UIBuilder() { 040 this.elements = new ArrayList<Element>(); 041 } 042 043 public List<Element> getElements() { 044 return elements; 045 } 046 047 @Override 048 protected Object createNode(Object name) { 049 return createNode(name, (Object)null); 050 } 051 052 @Override 053 protected Object createNode(Object name, Object value) { 054 055 return initElement(name, value); 056 057 } 058 059 @Override 060 protected Object createNode(Object name, Map attributes, Object value) { 061 throw new UnsupportedOperationException(); 062 } 063 064 @Override 065 protected Object createNode(Object name, Map attributes) { 066 067 Element e = initElement(name, attributes.get("value")); 068 setStyles(e, attributes); 069 return e; 070 071 } 072 073 private Element initElement(Object name, Object value) { 074 075 if ("node".equals(name)) { 076 if (value == null) { 077 return new TreeElement(); 078 } else { 079 return new TreeElement(new LabelElement(value)); 080 } 081 } else if ("label".equals(name)) { 082 return new LabelElement(value); 083 } else if ("table".equals(name)) { 084 return new TableElement(); 085 } else if ("row".equals(name)) { 086 return new RowElement(); 087 } else { 088 throw new UnsupportedOperationException("Cannot build object with name " + name + " and value " + value); 089 } 090 091 } 092 093 private void setStyles(Element e, Map attributes) { 094 e.setDecoration((Decoration) attributes.get("decoration")); 095 e.setForeground((Color) attributes.get("foreground")); 096 e.setBackground((Color) attributes.get("background")); 097 } 098 099 @Override 100 protected void setParent(Object parent, Object child) { 101 if (parent instanceof TreeElement) { 102 TreeElement parentElement = (TreeElement)parent; 103 Element childElement = (Element)child; 104 parentElement.addNode(childElement); 105 childElement.setParent(parentElement); 106 } else if (parent instanceof TableElement) { 107 TableElement parentElement = (TableElement)parent; 108 RowElement childElement = (RowElement)child; 109 parentElement.addRow(childElement); 110 childElement.setParent(parentElement); 111 } else if (parent instanceof RowElement) { 112 RowElement parentElement = (RowElement)parent; 113 Element childElement = (Element)child; 114 if (child instanceof TreeElement) { 115 throw new IllegalArgumentException("A table cannot contain node element"); 116 } 117 parentElement.addValue(childElement); 118 childElement.setParent(parentElement); 119 } else { 120 throw new UnsupportedOperationException(); 121 } 122 } 123 124 @Override 125 protected void nodeCompleted(Object parent, Object child) { 126 if (parent == null) { 127 elements.add((Element)child); 128 } 129 super.nodeCompleted(parent, child); 130 } 131 }