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SPR-5931 - Allow non-standard attributes in <form> tags

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This commit is contained in:
Jeremy Grelle
2009-09-21 02:48:00 +00:00
parent 566eeba8ca
commit 982ece595c
15 changed files with 395 additions and 4 deletions
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44
org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/tags/form/AbstractHtmlElementTag.java
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@@ -16,20 +16,31 @@
package org.springframework.web.servlet.tags.form;
import javax.servlet.jsp.JspException;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.DynamicAttributes;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
/**
* Base class for databinding-aware JSP tags that render HTML element. Provides
* a set of properties corresponding to the set of HTML attributes that are common
* across elements.
* across elements.
*
* <p>Additionally, this base class allows for rendering non-standard attributes
* as part of the tag's output. These attributes are accessible to subclasses if
* needed via the {@link AbstractHtmlElementTag#getDynamicAttributes() dynamicAttributes}
* map.
*
* @author Rob Harrop
* @author Jeremy Grelle
* @since 2.0
*/
public abstract class AbstractHtmlElementTag extends AbstractDataBoundFormElementTag {
public abstract class AbstractHtmlElementTag extends AbstractDataBoundFormElementTag implements DynamicAttributes{
public static final String CLASS_ATTRIBUTE = "class";
@@ -97,6 +108,8 @@ public abstract class AbstractHtmlElementTag extends AbstractDataBoundFormElemen
private String onkeyup;
private String onkeydown;
private Map<String, Object> dynamicAttributes;
/**
@@ -369,7 +382,23 @@ public abstract class AbstractHtmlElementTag extends AbstractDataBoundFormElemen
protected String getOnkeydown() {
return this.onkeydown;
}
/**
* Get the map of dynamic attributes.
*/
protected Map<String, Object> getDynamicAttributes() {
return this.dynamicAttributes;
}
/**
* {@inheritDoc}
*/
public void setDynamicAttribute(String uri, String localName, Object value ) throws JspException {
if (this.dynamicAttributes == null) {
this.dynamicAttributes = new HashMap<String, Object>();
}
dynamicAttributes.put(localName, value);
}
/**
* Writes the default attributes configured via this base class to the supplied {@link TagWriter}.
@@ -383,6 +412,7 @@ public abstract class AbstractHtmlElementTag extends AbstractDataBoundFormElemen
/**
* Writes the optional attributes configured via this base class to the supplied {@link TagWriter}.
* The set of optional attributes that will be rendered includes any non-standard dynamic attributes.
* Called by {@link #writeDefaultAttributes(TagWriter)}.
*/
protected void writeOptionalAttributes(TagWriter tagWriter) throws JspException {
@@ -403,6 +433,12 @@ public abstract class AbstractHtmlElementTag extends AbstractDataBoundFormElemen
writeOptionalAttribute(tagWriter, ONKEYPRESS_ATTRIBUTE, getOnkeypress());
writeOptionalAttribute(tagWriter, ONKEYUP_ATTRIBUTE, getOnkeyup());
writeOptionalAttribute(tagWriter, ONKEYDOWN_ATTRIBUTE, getOnkeydown());
if (!CollectionUtils.isEmpty(this.dynamicAttributes)) {
for (String attr : this.dynamicAttributes.keySet()) {
tagWriter.writeOptionalAttributeValue(attr, getDisplayString(this.dynamicAttributes.get(attr)));
}
}
}
/**