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package org.apache.myfaces.view.facelets.tag.ui; |
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import java.io.IOException; |
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import java.util.Collection; |
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import java.util.HashMap; |
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import java.util.Map; |
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import java.util.logging.Level; |
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import java.util.logging.Logger; |
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import javax.el.ELException; |
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import javax.el.VariableMapper; |
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import javax.faces.FacesException; |
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import javax.faces.component.UIComponent; |
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import javax.faces.view.facelets.FaceletContext; |
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import javax.faces.view.facelets.FaceletException; |
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import javax.faces.view.facelets.TagAttribute; |
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import javax.faces.view.facelets.TagConfig; |
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import javax.faces.view.facelets.TagHandler; |
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import org.apache.myfaces.view.facelets.AbstractFaceletContext; |
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import org.apache.myfaces.view.facelets.TemplateClient; |
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import org.apache.myfaces.view.facelets.el.VariableMapperWrapper; |
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import org.apache.myfaces.view.facelets.tag.TagHandlerUtils; |
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public final class LegacyCompositionHandler extends TagHandler implements TemplateClient |
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{ |
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56 | 0 | private static final Logger log = Logger.getLogger(CompositionHandler.class.getName()); |
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public final static String NAME = "composition"; |
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protected final TagAttribute _template; |
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protected final Map<String, DefineHandler> _handlers; |
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protected final LegacyParamHandler[] _params; |
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public LegacyCompositionHandler(TagConfig config) |
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{ |
79 | 0 | super(config); |
80 | 0 | _template = getAttribute("template"); |
81 | 0 | if (_template != null) |
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{ |
83 | 0 | _handlers = new HashMap<String, DefineHandler>(); |
84 | 0 | for (DefineHandler handler : TagHandlerUtils.findNextByType(nextHandler, DefineHandler.class)) |
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{ |
86 | 0 | _handlers.put(handler.getName(), handler); |
87 | 0 | if (log.isLoggable(Level.FINE)) |
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{ |
89 | 0 | log.fine(tag + " found Define[" + handler.getName() + "]"); |
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} |
91 | 0 | } |
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93 | 0 | Collection<LegacyParamHandler> params = TagHandlerUtils.findNextByType(nextHandler, |
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LegacyParamHandler.class); |
95 | 0 | if (!params.isEmpty()) |
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{ |
97 | 0 | int i = 0; |
98 | 0 | _params = new LegacyParamHandler[params.size()]; |
99 | 0 | for (LegacyParamHandler handler : params) |
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{ |
101 | 0 | _params[i++] = handler; |
102 | 0 | } |
103 | 0 | } |
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else |
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{ |
106 | 0 | _params = null; |
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} |
108 | 0 | } |
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else |
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{ |
111 | 0 | _params = null; |
112 | 0 | _handlers = null; |
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} |
114 | 0 | } |
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public void apply(FaceletContext ctx, UIComponent parent) throws IOException, FacesException, FaceletException, |
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ELException |
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{ |
125 | 0 | if (_template != null) |
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{ |
127 | 0 | VariableMapper orig = ctx.getVariableMapper(); |
128 | 0 | AbstractFaceletContext actx = (AbstractFaceletContext) ctx; |
129 | 0 | actx.extendClient(this); |
130 | 0 | if (_params != null) |
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{ |
132 | 0 | VariableMapper vm = new VariableMapperWrapper(orig); |
133 | 0 | ctx.setVariableMapper(vm); |
134 | 0 | for (int i = 0; i < _params.length; i++) |
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{ |
136 | 0 | _params[i].apply(ctx, parent); |
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} |
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} |
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try |
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{ |
142 | 0 | ctx.includeFacelet(parent, _template.getValue(ctx)); |
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} |
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finally |
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{ |
146 | 0 | actx.popExtendedClient(this); |
147 | 0 | ctx.setVariableMapper(orig); |
148 | 0 | } |
149 | 0 | } |
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else |
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{ |
152 | 0 | this.nextHandler.apply(ctx, parent); |
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} |
154 | 0 | } |
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public boolean apply(FaceletContext ctx, UIComponent parent, String name) throws IOException, FacesException, |
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FaceletException, ELException |
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{ |
159 | 0 | if (name != null) |
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{ |
161 | 0 | if (_handlers == null) |
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{ |
163 | 0 | return false; |
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} |
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166 | 0 | DefineHandler handler = _handlers.get(name); |
167 | 0 | if (handler != null) |
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{ |
169 | 0 | handler.applyDefinition(ctx, parent); |
170 | 0 | return true; |
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} |
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else |
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{ |
174 | 0 | return false; |
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} |
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} |
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else |
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{ |
179 | 0 | this.nextHandler.apply(ctx, parent); |
180 | 0 | return true; |
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} |
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} |
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} |