|
1
24 package org.ofbiz.widget.screen;
25
26 import java.io.IOException  ;
27 import java.io.Writer ;
28 import java.net.MalformedURLException ;
29 import java.util.HashMap ;
30 import java.util.Iterator ;
31 import java.util.List ;
32 import java.util.Map ;
33
34 import org.ofbiz.base.util.Debug;
35 import org.ofbiz.base.util.GeneralException;
36 import org.ofbiz.base.util.UtilXml;
37 import org.ofbiz.base.util.collections.MapStack;
38 import org.ofbiz.base.util.string.FlexibleStringExpander;
39 import org.ofbiz.base.util.template.FreeMarkerWorker;
40 import org.w3c.dom.Element ;
41
42 import freemarker.template.TemplateException;
43
44
51 public class HtmlWidget extends ModelScreenWidget {
52 public static final String module = HtmlWidget.class.getName();
53
54 protected ModelScreenWidget childWidget;
55
56 public HtmlWidget(ModelScreen modelScreen, Element htmlElement) {
57 super(modelScreen, htmlElement);
58 List childElementList = UtilXml.childElementList(htmlElement);
59 Iterator childElementIter = childElementList.iterator();
60 while (childElementIter.hasNext()) {
61 Element childElement = (Element ) childElementIter.next();
62 if ("html-template".equals(childElement.getNodeName())) {
63 this.childWidget = new HtmlTemplate(modelScreen, childElement);
64 } else if ("html-template-decorator".equals(childElement.getNodeName())) {
65 this.childWidget = new HtmlTemplateDecorator(modelScreen, childElement);
66 } else {
67 throw new IllegalArgumentException ("Tag not supported under the platform-specific -> html tag with name: " + childElement.getNodeName());
68 }
69 }
70 }
71
72 public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) throws GeneralException {
73 childWidget.renderWidgetString(writer, context, screenStringRenderer);
74 }
75
76 public String rawString() {
77 return "<html-widget>" + (this.childWidget==null?"":this.childWidget.rawString());
78 }
79
80 public static void renderHtmlTemplate(Writer writer, FlexibleStringExpander locationExdr, Map context) {
81 String location = locationExdr.expandString(context);
82
84 if (location.endsWith(".ftl")) {
85 try {
86 FreeMarkerWorker.renderTemplateAtLocation(location, context, writer);
87 } catch (MalformedURLException e) {
88 String errMsg = "Error rendering included template at location [" + location + "]: " + e.toString();
89 Debug.logError(e, errMsg, module);
90 throw new RuntimeException (errMsg);
91 } catch (TemplateException e) {
92 String errMsg = "Error rendering included template at location [" + location + "]: " + e.toString();
93 Debug.logError(e, errMsg, module);
94 throw new RuntimeException (errMsg);
95 } catch (IOException e) {
96 String errMsg = "Error rendering included template at location [" + location + "]: " + e.toString();
97 Debug.logError(e, errMsg, module);
98 throw new RuntimeException (errMsg);
99 }
100 } else {
101 throw new IllegalArgumentException ("Rending not yet support for the tempalte at location: " + location);
102 }
103 }
104
105 public static class HtmlTemplate extends ModelScreenWidget {
106 protected FlexibleStringExpander locationExdr;
107
108 public HtmlTemplate(ModelScreen modelScreen, Element htmlTemplateElement) {
109 super(modelScreen, htmlTemplateElement);
110 this.locationExdr = new FlexibleStringExpander(htmlTemplateElement.getAttribute("location"));
111 }
112
113 public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) {
114 renderHtmlTemplate(writer, this.locationExdr, context);
115 }
116
117 public String rawString() {
118 return "<html-template location=\"" + this.locationExdr.getOriginal() + "\"/>";
119 }
120 }
121
122 public static class HtmlTemplateDecorator extends ModelScreenWidget {
123 protected FlexibleStringExpander locationExdr;
124 protected Map sectionMap = new HashMap ();
125
126 public HtmlTemplateDecorator(ModelScreen modelScreen, Element htmlTemplateDecoratorElement) {
127 super(modelScreen, htmlTemplateDecoratorElement);
128 this.locationExdr = new FlexibleStringExpander(htmlTemplateDecoratorElement.getAttribute("location"));
129
130 List htmlTemplateDecoratorSectionElementList = UtilXml.childElementList(htmlTemplateDecoratorElement, "html-template-decorator-section");
131 Iterator htmlTemplateDecoratorSectionElementIter = htmlTemplateDecoratorSectionElementList.iterator();
132 while (htmlTemplateDecoratorSectionElementIter.hasNext()) {
133 Element htmlTemplateDecoratorSectionElement = (Element ) htmlTemplateDecoratorSectionElementIter.next();
134 String name = htmlTemplateDecoratorSectionElement.getAttribute("name");
135 this.sectionMap.put(name, new HtmlTemplateDecoratorSection(modelScreen, htmlTemplateDecoratorSectionElement));
136 }
137 }
138
139 public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) {
140 if (!(context instanceof MapStack)) {
142 context = MapStack.create(context);
143 }
144
145 MapStack contextMs = (MapStack) context;
146
147 MapStack standAloneStack = contextMs.standAloneChildStack();
149 standAloneStack.put("screens", new ScreenRenderer(writer, contextMs, screenStringRenderer));
150 SectionsRenderer sections = new SectionsRenderer(this.sectionMap, standAloneStack, writer, screenStringRenderer);
151
152 contextMs.push();
154 context.put("sections", sections);
155
156 renderHtmlTemplate(writer, this.locationExdr, context);
157 }
158
159 public String rawString() {
160 return "<html-template-decorator location=\"" + this.locationExdr.getOriginal() + "\"/>";
161 }
162 }
163
164 public static class HtmlTemplateDecoratorSection extends ModelScreenWidget {
165 protected String name;
166 protected List subWidgets;
167
168 public HtmlTemplateDecoratorSection(ModelScreen modelScreen, Element htmlTemplateDecoratorSectionElement) {
169 super(modelScreen, htmlTemplateDecoratorSectionElement);
170 this.name = htmlTemplateDecoratorSectionElement.getAttribute("name");
171 List subElementList = UtilXml.childElementList(htmlTemplateDecoratorSectionElement);
173 this.subWidgets = ModelScreenWidget.readSubWidgets(this.modelScreen, subElementList);
174 }
175
176 public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) throws GeneralException {
177 renderSubWidgetsString(this.subWidgets, writer, context, screenStringRenderer);
179 }
180
181 public String rawString() {
182 return "<html-template-decorator-section name=\"" + this.name + "\"/>";
183 }
184 }
185 }
186
187 |
Popular Tags |
Java API By Example, From Geeks To Geeks.