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16 package org.apache.cocoon.woody.formmodel;
17
18 import java.util.ArrayList  ;
19 import java.util.Iterator ;
20 import java.util.List ;
21 import java.util.Locale ;
22
23 import org.apache.cocoon.woody.Constants;
24 import org.apache.cocoon.woody.FormContext;
25 import org.apache.cocoon.woody.event.WidgetEvent;
26 import org.apache.cocoon.woody.validation.WidgetValidator;
27 import org.apache.cocoon.xml.AttributesImpl;
28 import org.xml.sax.ContentHandler ;
29 import org.xml.sax.SAXException ;
30
31
37 public abstract class AbstractWidget implements Widget {
38 private String location;
39 private Widget parent;
40 private Form form;
41 protected AbstractWidgetDefinition definition;
42
43 private List validators;
44
45
48 protected void setDefinition(AbstractWidgetDefinition definition) {
49 this.definition = definition;
50 }
51
52
55 public String getId() {
56 return definition.getId();
57 }
58
59
62 protected void setLocation(String location) {
63 this.location = location;
64 }
65
66
69 public String getLocation() {
70 return this.location;
71 }
72
73 public Widget getParent() {
74 return parent;
75 }
76
77 public void setParent(Widget widget) {
78 this.parent = widget;
79 }
80
81 public Form getForm() {
82 if (this.form == null) {
83 if (parent == null) {
84 this.form = (Form)this;
85 } else {
86 this.form = parent.getForm();
87 }
88 }
89 return this.form;
90 }
91
92 public String getNamespace() {
93 if (getParent() != null && getParent().getNamespace().length() > 0) {
94 return getParent().getNamespace() + "." + getId();
95 } else {
96 return getId();
97 }
98 }
99
100 public String getFullyQualifiedId() {
101 if (parent != null) {
102 String namespace = parent.getNamespace();
103 if (namespace.length() > 0) {
104 return namespace + "." + getId();
105 }
106 }
107 return getId();
108 }
109
110 public Object getValue() {
111 return null;
112 }
113
114 public void setValue(Object object) {
115 throw new RuntimeException ("Cannot set the value of widget " + getFullyQualifiedId());
116 }
117
118 public boolean isRequired() {
119 return false;
120 }
121
122 public Widget getWidget(String id) {
123 return null;
124 }
125
126 public void broadcastEvent(WidgetEvent event) {
127 throw new UnsupportedOperationException ("Widget " + this.getFullyQualifiedId() + " doesn't handle events.");
128 }
129
130
135 public void addValidator(WidgetValidator validator) {
136 if (this.validators == null) {
137 this.validators = new ArrayList ();
138 }
139
140 this.validators.add(validator);
141 }
142
143
149 public boolean removeValidator(WidgetValidator validator) {
150 return (this.validators == null)? false : this.validators.remove(validator);
151 }
152
153 public boolean validate(FormContext context) {
154 if (!this.definition.validate(this, context)) {
156 return false;
158 } else {
159 if (this.validators == null) {
161 return true;
163 } else {
164 Iterator iter = this.validators.iterator();
166 while(iter.hasNext()) {
167 WidgetValidator validator = (WidgetValidator)iter.next();
168 if (!validator.validate(this, context)) {
169 return false;
170 }
171 }
172 return true;
174 }
175 }
176 }
177
178 public void generateLabel(ContentHandler contentHandler) throws SAXException {
179 if (definition != null) {
180 definition.generateDisplayData("label", contentHandler);
181 }
182 }
183
184 public void generateItemSaxFragment(ContentHandler contentHandler, Locale locale) throws SAXException {
185 }
187
188 public void generateSaxFragment(ContentHandler contentHandler, Locale locale, String element, WidgetDefinition definition)
189 throws SAXException {
190 AttributesImpl attrs = new AttributesImpl();
191 attrs.addCDATAAttribute("id", getFullyQualifiedId());
192 contentHandler.startElement(Constants.WI_NS, element, Constants.WI_PREFIX_COLON + element, attrs);
193 generateItemSaxFragment(contentHandler, locale);
194 contentHandler.endElement(Constants.WI_NS, element, Constants.WI_PREFIX_COLON + element);
195 }
196 }
197 |
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