net.sourceforge.stripes.tag
Class InputFileTag
java.lang.Object
net.sourceforge.stripes.tag.StripesTagSupport
net.sourceforge.stripes.tag.HtmlTagSupport
net.sourceforge.stripes.tag.InputTagSupport
net.sourceforge.stripes.tag.InputFileTag
- All Implemented Interfaces:
- DynamicAttributes, JspTag, Tag, TryCatchFinally
public class InputFileTag
- extends InputTagSupport
- implements Tag
Tag that generates HTML form fields of type <input type="file" ... />. The only
functionality provided above and beyond a straight HTML input tag is that the tag will find
its enclosing form tag and ensure that the for is set to POST instead of GET, and that the
encoding type of the form is properly set to multipart/form-data as both these settings are
necessary to correctly perform file uploads.
Does not perform repopulation because default values for <input type="file/> are
not allowed by the HTML specification. One can only imagine this is because a malicious page
author could steal a user's files by defaulting the value and using JavaScript to auto-submit
forms! As a result the tag does not accept a body because it would have no use for any
generated content.
- Author:
- Tim Fennell
Constructor Summary |
InputFileTag()
Basic constructor that sets the input tag's type attribute to "file". |
Method Summary |
int |
doEndInputTag()
Writes out a singleton tag representing the values stored on this tag instance. |
int |
doStartInputTag()
Locates the parent tag and modifies it's method and enctype to be suitable for file upload. |
String |
getAccept()
Returns the value, if any, set with setAccept(). |
void |
setAccept(String accept)
Sets the content types accepted for files being uploaded. |
Methods inherited from class net.sourceforge.stripes.tag.InputTagSupport |
doCatch, doEndTag, doFinally, doStartTag, format, format, getActionBean, getDisabled, getFieldErrors, getFormatPattern, getFormatType, getLocalizedFieldName, getLocalizedFieldName, getName, getOverrideValueOrValues, getParentFormTag, getReadonly, getSingleOverrideValue, getSize, getValidationMetadata, getValueOnPage, hasErrors, isItemSelected, loadErrors, makeFocused, registerWithParentForm, setDisabled, setFocus, setFormatPattern, setFormatType, setName, setReadonly, setSize |
Methods inherited from class net.sourceforge.stripes.tag.HtmlTagSupport |
evaluateExpression, get, getAccesskey, getAttributes, getBodyContent, getBodyContentAsString, getCssClass, getDir, getId, getLang, getOnblur, getOnchange, getOnclick, getOndblclick, getOnfocus, getOnkeydown, getOnkeypress, getOnkeyup, getOnmousedown, getOnmousemove, getOnmouseout, getOnmouseover, getOnmouseup, getOnselect, getStyle, getTabindex, getTitle, release, set, setAccesskey, setBodyContent, setClass, setCssClass, setDir, setDynamicAttribute, setId, setLang, setOnblur, setOnchange, setOnclick, setOndblclick, setOnfocus, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setOnselect, setStyle, setTabindex, setTitle, toString, writeAttributes, writeCloseTag, writeOpenTag, writeSingletonTag |
InputFileTag
public InputFileTag()
- Basic constructor that sets the input tag's type attribute to "file".
setAccept
public void setAccept(String accept)
- Sets the content types accepted for files being uploaded.
getAccept
public String getAccept()
- Returns the value, if any, set with setAccept().
doStartInputTag
public int doStartInputTag()
throws JspException
- Locates the parent tag and modifies it's method and enctype to be suitable for file upload.
- Specified by:
doStartInputTag
in class InputTagSupport
- Returns:
- SKIP_BODY because the tag does not allow a body
- Throws:
JspException
- if the enclosing form tag cannot be located
doEndInputTag
public int doEndInputTag()
throws JspException
- Writes out a singleton tag representing the values stored on this tag instance.
- Specified by:
doEndInputTag
in class InputTagSupport
- Returns:
- EVAL_PAGE is always returned
- Throws:
JspException
- if a problem is encountered writing to the JSP page's output
? Copyright 2005-2006, Stripes Development Team.