svn commit: r503728 - /myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java

[ca...@apache.org]

Author: cagatay
Date: Mon Feb  5 07:41:56 2007
New Revision: 503728

URL: http://svn.apache.org/viewvc?view=rev&rev=503728
Log:
Add client validation utilities

Added:
    myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java   (with props)

Added: myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java
URL: http://svn.apache.org/viewvc/myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java?view=auto&rev=503728
==============================================================================
--- myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java (added)
+++ myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java Mon Feb  5 07:41:56 2007
@@ -0,0 +1,202 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.myfaces.custom.clientvalidation.common;
+
+import java.io.IOException;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Locale;
+import java.util.ResourceBundle;
+
+import javax.faces.component.UIComponent;
+import javax.faces.component.UIInput;
+import javax.faces.component.html.HtmlMessages;
+import javax.faces.context.ExternalContext;
+import javax.faces.context.FacesContext;
+import javax.faces.context.ResponseWriter;
+import javax.faces.convert.Converter;
+import javax.faces.validator.Validator;
+
+import org.apache.myfaces.custom.util.ComponentUtils;
+import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
+
+/**
+ * @author cagatay (latest modification by $Author$)
+ * @version $Revision$ $Date$
+ */
+public class CVUtils {
+
+	private CVUtils() {
+		// nope
+	}
+	
+	public static void addCVCall(CVCall call) {
+		getCVCallsHolder( FacesContext.getCurrentInstance() ).addCVCall( call );
+	}
+	
+	public static CVCall createCVCall(UIInput input) {
+		CVCall call = new CVCall();
+		call.setId( input.getId() );
+		call.setClientId( input.getClientId( FacesContext.getCurrentInstance() ) );
+		call.setRequired( input.isRequired() );		
+		
+		//converter
+		Converter converter = RendererUtils.findUIOutputConverter( FacesContext.getCurrentInstance(), input );
+		if( converter instanceof ClientConverter ) {
+			call.setConverterScriptFunction( ( (ClientConverter) converter ).getScriptFunction() );
+			call.setConverterScriptResource( ( (ClientConverter) converter ).getScriptResource() );
+		}
+		
+		//validators
+		int numberOfValidators = input.getValidators().length;
+		call.setValidatorScriptFunctions( ( new String[numberOfValidators] ) );
+		call.setValidatorScriptResources( ( new String[numberOfValidators] ) );
+		for( int i = 0; i < numberOfValidators; i++ ) {
+			Validator validator = input.getValidators()[i];
+			if( validator instanceof ClientValidator ) {
+				call.getValidatorScriptFunctions()[i] = ((ClientValidator) validator).getScriptFunction();
+				call.getValidatorScriptResources()[i] = ((ClientValidator) validator).getScriptResource();
+			}
+		}
+		return call;
+	}
+
+	public static CVCallsHolder getCVCallsHolder(FacesContext facesContext) {
+		return (CVCallsHolder) facesContext.getApplication().createValueBinding("#{CVCallsHolder}").getValue( facesContext );
+	}
+
+	public static boolean isCVEnabled() {
+		ExternalContext context = FacesContext.getCurrentInstance().getExternalContext();
+		if(context.getInitParameter("org.apache.myfaces.ENABLE_CLIENT_SIDE_VALIDATION") == null)
+			return false;
+		else
+			return Boolean.valueOf(context.getInitParameter("org.apache.myfaces.ENABLE_CLIENT_SIDE_VALIDATION")).booleanValue();
+	}
+	
+	//Traverses the component tree recursively, queues validation calls starting from the root
+	public static void queueCVCalls(UIComponent root) {
+		if( root.getChildCount() > 0 ) {
+			for( int i = 0; i< root.getChildCount() ; i++ ) 
+				queueCVCalls( (UIComponent) root.getChildren().get( i ) );
+		} else {
+			if( root instanceof UIInput ) {
+				UIInput input = (UIInput) root;
+				addCVCall( createCVCall( input ) );
+			}
+		}
+	}
+	
+	public static void encodeValidationScript(FacesContext facesContext) throws IOException{
+		ResponseWriter writer = facesContext.getResponseWriter();
+		writer.write("\n<script type=\"text/javascript\" >\n");
+		
+		encodeMessageBundle(facesContext);			//renders message bundle map
+		encodeCreateViewFunction(facesContext);
+		encodeRenderResponseFunction(facesContext);
+		
+		writer.write("</script>");
+	}
+	
+	//TODO: Remove this later, include message bundle instead of rendering it
+	public static void encodeMessageBundle(FacesContext facesContext) throws IOException{
+		ResponseWriter writer = facesContext.getResponseWriter();
+		
+		Locale locale = facesContext.getViewRoot().getLocale();
+		String bundleName = "javax.faces.Messages";
+		ResourceBundle bundle = ResourceBundle.getBundle(bundleName, locale, getCurrentLoader(bundleName));
+		
+		writer.write("MessageBundle = new function() {\n");
+		writer.write("this.messages = new Array();\n");
+		for(Enumeration e = bundle.getKeys() ; e.hasMoreElements() ;) {
+			String key = e.nextElement().toString() ;
+			String value = bundle.getString(key).replace("\"", "\\\"");
+			writer.write("this.messages[\"" + key + "\"] = \"" + value + "\";\n");
+		}
+		writer.write("this.getString = function(key) { \n");
+		writer.write("return this.messages[key];\n");
+		writer.write("}\n");
+		writer.write("}\n");
+	}
+	
+	public static void encodeCreateViewFunction(FacesContext facesContext) throws IOException {
+		ResponseWriter writer = facesContext.getResponseWriter();
+		
+		writer.write("\t tomahawk.createView = function(facesContext) {\n");
+		writer.write("\t\t facesContext.clearMessages();\n");
+		writer.write("\t\t facesContext.viewRoot = new tomahawk.UIViewRoot();\n");
+		
+		List cvCalls = getCVCallsHolder( facesContext ).getCvCalls();
+		for( int i = 0; i < cvCalls.size() ; i++ ) {
+			CVCall call = (CVCall) cvCalls.get( i );
+			
+			writer.write( "\t\t facesContext.viewRoot.addChild((new tomahawk.UIInput('" + call.getId() + "'," );		//id
+			writer.write( "'" + call.getClientId() + "'," );				//clientId
+			writer.write( call.isRequired() + ",");							//required
+			
+			//Converter
+			if(call.getConverterScriptFunction() != null )
+				writer.write( "new " + call.getConverterScriptFunction() + ", ");
+			else
+				writer.write( "null,");
+			
+			//Validators
+			writer.write( "new Array(");
+			String[] validators = call.getValidatorScriptFunctions();
+			if(validators == null )
+				writer.write( ")");
+			else {
+				for(int j=0 ; j < validators.length ; j++ ) {
+					writer.write( "new " + validators[j] );
+					if( (j + 1) != validators.length )
+						writer.write( "," );
+				}
+			}
+			writer.write(" ) ) ) );\n");
+		}
+		writer.write("\t }\n");
+	}
+	
+	public static void encodeRenderResponseFunction(FacesContext facesContext) throws IOException {
+		ResponseWriter writer = facesContext.getResponseWriter();
+		writer.write("\t tomahawk.renderResponse = function(facesContext) {\n");
+		
+		HtmlMessages htmlMessages = (HtmlMessages) ComponentUtils.findFirstMessagesComponent( facesContext, facesContext.getViewRoot() );
+		
+		if(htmlMessages != null)
+		writer.write("\t\t tomahawk.RendererUtils.renderMessages(facesContext,'" + htmlMessages.getClientId( facesContext ) + "', '" + htmlMessages.getLayout() + "'); \n"); 
+		
+		writer.write("\t\t viewRoot = facesContext.viewRoot;\n");
+		writer.write("\t\t for(var i = 0; i < viewRoot.children.length ; i ++) { \n");
+		writer.write("\t\t\t\t  var uiinput = viewRoot.children[i]; \n");
+		writer.write("\t\t\t\t tomahawk.RendererUtils.renderMessage(facesContext,uiinput.clientId); \n");
+		writer.write("\t\t\t }\n");
+		writer.write("\t\t }\n");
+	}
+	 
+	public static ClassLoader getCurrentLoader(Object defaultObject)
+	   {
+	       ClassLoader loader = Thread.currentThread().getContextClassLoader();
+	       if(loader == null)
+	       {
+	           loader = defaultObject.getClass().getClassLoader();
+	       }
+	       return loader;
+	  }
+
+}

Propchange: myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java
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Propchange: myfaces/tomahawk/trunk/sandbox/core/src/main/java/org/apache/myfaces/custom/clientvalidation/common/CVUtils.java
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