/*
* $Header: /home/cvs/jakarta-struts/src/share/org/apache/struts/taglib/html/JavascriptValidatorTag.java,v 1.52 2004/08/07 04:17:52 martinc Exp $
* $Revision: 1.52 $
* $Date: 2004/08/07 04:17:52 $
*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed 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.struts.taglib.html;import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.BodyTagSupport;import org.apache.commons.validator.Field;
import org.apache.commons.validator.Form;
import org.apache.commons.validator.ValidatorAction;
import org.apache.commons.validator.ValidatorResources;
import org.apache.commons.validator.util.ValidatorUtils;
import org.apache.commons.validator.Var;
import org.apache.struts.Globals;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.config.ModuleConfig;
import org.apache.struts.taglib.TagUtils;
import org.apache.struts.util.MessageResources;
import org.apache.struts.validator.Resources;
import org.apache.struts.validator.ValidatorPlugIn;
import java.util.StringTokenizer;/**
* Custom tag that generates JavaScript for client side validation based
* on the validation rules loaded by the <code>ValidatorPlugIn</code>
* defined in the struts-config.xml file.
*
* @version $Revision: 1.52 $ $Date: 2004/08/07 04:17:52 $
* @since Struts 1.1
*/
public class JavascriptValidatorTag extends BodyTagSupport { /**
* A Comparator to use when sorting ValidatorAction objects.
*/
private static final Comparator actionComparator = new Comparator() {
public int compare(Object o1, Object o2) { ValidatorAction va1 = (ValidatorAction) o1;
ValidatorAction va2 = (ValidatorAction) o2; if ((va1.getDepends() == null || va1.getDepends().length() == 0)
&& (va2.getDepends() == null || va2.getDepends().length() == 0)) {
return 0; } else if (
(va1.getDepends() != null && va1.getDepends().length() > 0)
&& (va2.getDepends() == null || va2.getDepends().length() == 0)) {
return 1; } else if (
(va1.getDepends() == null || va1.getDepends().length() == 0)
&& (va2.getDepends() != null && va2.getDepends().length() > 0)) {
return -1; } else {
return va1.getDependencyList().size() - va2.getDependencyList().size();
}
}
};
* $Header: /home/cvs/jakarta-struts/src/share/org/apache/struts/taglib/html/JavascriptValidatorTag.java,v 1.52 2004/08/07 04:17:52 martinc Exp $
* $Revision: 1.52 $
* $Date: 2004/08/07 04:17:52 $
*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed 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.struts.taglib.html;import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.BodyTagSupport;import org.apache.commons.validator.Field;
import org.apache.commons.validator.Form;
import org.apache.commons.validator.ValidatorAction;
import org.apache.commons.validator.ValidatorResources;
import org.apache.commons.validator.util.ValidatorUtils;
import org.apache.commons.validator.Var;
import org.apache.struts.Globals;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.config.ModuleConfig;
import org.apache.struts.taglib.TagUtils;
import org.apache.struts.util.MessageResources;
import org.apache.struts.validator.Resources;
import org.apache.struts.validator.ValidatorPlugIn;
import java.util.StringTokenizer;/**
* Custom tag that generates JavaScript for client side validation based
* on the validation rules loaded by the <code>ValidatorPlugIn</code>
* defined in the struts-config.xml file.
*
* @version $Revision: 1.52 $ $Date: 2004/08/07 04:17:52 $
* @since Struts 1.1
*/
public class JavascriptValidatorTag extends BodyTagSupport { /**
* A Comparator to use when sorting ValidatorAction objects.
*/
private static final Comparator actionComparator = new Comparator() {
public int compare(Object o1, Object o2) { ValidatorAction va1 = (ValidatorAction) o1;
ValidatorAction va2 = (ValidatorAction) o2; if ((va1.getDepends() == null || va1.getDepends().length() == 0)
&& (va2.getDepends() == null || va2.getDepends().length() == 0)) {
return 0; } else if (
(va1.getDepends() != null && va1.getDepends().length() > 0)
&& (va2.getDepends() == null || va2.getDepends().length() == 0)) {
return 1; } else if (
(va1.getDepends() == null || va1.getDepends().length() == 0)
&& (va2.getDepends() != null && va2.getDepends().length() > 0)) {
return -1; } else {
return va1.getDependencyList().size() - va2.getDependencyList().size();
}
}
};
* The start of the HTML comment hiding JavaScript from old browsers.
* @since Struts 1.2
*/
protected static final String HTML_BEGIN_COMMENT = "\n<!-- Begin \n"; /**
* The end of the HTML comment hiding JavaScript from old browsers.
* @since Struts 1.2
*/
protected static final String HTML_END_COMMENT = "//End --> \n"; // ----------------------------------------------------------- Properties /**
* The servlet context attribute key for our resources.
*/
protected String bundle = Globals.MESSAGES_KEY; /**
* The default locale on our server.
* @deprecated This variable is no longer used.
*/
protected static Locale defaultLocale = Locale.getDefault(); /**
* The name of the form that corresponds with the action name
* in struts-config.xml. Specifying a form name places a
* <script> </script> around the javascript.
*/
protected String formName = null;
/**
* formName is used for both Javascript and non-javascript validations.
* For the javascript validations, there is the possibility that we will
* be rewriting the formName (if it is a ValidatorActionForm instead of just
* a ValidatorForm) so we need another variable to hold the formName just for
* javascript usage.
*/
protected String jsFormName = null; /**
* The line ending string.
*/
protected static String lineEnd = System.getProperty("line.separator"); /**
* The current page number of a multi-part form.
* Only valid when the formName attribute is set.
*/
protected int page = 0; /**
* This will be used as is for the JavaScript validation method name if it has a value. This is
* the method name of the main JavaScript method that the form calls to perform validations.
*/
protected String methodName = null; /**
* Include language attribute in the <script> element. This property is
* ignored in XHTML mode.
* @since Struts 1.2
*/
protected boolean scriptLanguage = true; /**
* The static JavaScript methods will only be printed if this is set to "true".
*/
protected String staticJavascript = "true"; /**
* The dynamic JavaScript objects will only be generated if this is set to "true".
*/
protected String dynamicJavascript = "true"; /**
* The src attribute for html script element (used to include an external script
* resource). The src attribute is only recognized
* when the formName attribute is specified.
*/
protected String src = null; /**
* The JavaScript methods will enclosed with html comments if this is set to "true".
*/
protected String htmlComment = "true"; /**
* Hide JavaScript methods in a CDATA section for XHTML when "true".
*/
protected String cdata = "true"; /**
* Gets the key (form name) that will be used
* to retrieve a set of validation rules to be
* performed on the bean passed in for validation.
*/
public String getFormName() {
return formName;
} /**
* Sets the key (form name) that will be used
* to retrieve a set of validation rules to be
* performed on the bean passed in for validation.
* Specifying a form name places a
* <script> </script> tag around the javascript.
*/
public void setFormName(String formName) {
this.formName = formName;
}
ie4+中应该还有更方便的方法;