[xsl] getting all parent elements for breadcrumb nav

[Nathan Shaw <n8_shaw@xxxxxxxxx>]

Hi all and happy holidays!

I am working on an application that uses the xbel dtd
for a set of bookmarks. In the xslt I am writing, I
want to create a breadcrumb navigation item at the top
so that the user can walk up and down the folders. I
pass in a folderID in the xml so that I can show the
proper folder and need to somehow grab all of that
folder's parent elements and put them into a
breadcrumb navigation line (Top folder > sub folder >
sub folder).

Any ideas on how to do this? Seems to me it will
require a named template, but I can't quite seem to
wrap my head around it.

Thanks in advance for the help! Here are the xml and
xslt:

XML:

<!--<!DOCTYPE xbel SYSTEM
"E:\documents\saic\cvs\CodeU\cu_extranet\info\bookmarks\xbel.dtd">-->
<xbel xmlns="http://www.python.org/topics/xml/xbel/";
id="i29dbb8f93d3f44167ffe" version="1.0">
	<folder xmlns="" added="11/01/2003"
id="i1a16869f8a24ec9ee8000" folded="no">
		<title>Bookmarks</title>
		<desc>Bookmarks for the Code U Extranet</desc>
		<folder xmlns="" added="11/01/2003"
id="i1a16869f8a24ec9ee8001" folded="no">
			<title>Required Bookmarks</title>
			<bookmark href="http://www.nasa.gov";
added="11/01/2003" id="i1a16869f8a24f2aac8000"
modified="11/01/2003">
				<title>NASA Web Site</title>
				<info>
					<metadata
owner="http://spaceresearch.nasa.gov/extranet"/>
				</info>
				<desc>NASA home page.</desc>
			</bookmark>
			<folder xmlns="" added="11/01/2003"
id="i1a16869f8a253944f8000" folded="yes">
				<title>Code U</title>
				<bookmark href="http://spaceresearch.nasa.gov";
added="11/01/2003" id="i1a16869f8a24fa4708000"
modified="11/01/2003">
					<title> Public Web Site</title>
					<info>
						<metadata
owner="http://spaceresearch.nasa.gov/extranet"/>
					</info>
					<desc>Code U Public Web Site, or
spaceresearch.nasa.gov</desc>
				</bookmark>
				<bookmark
href="http://research.hq.nasa.gov/code\_u/code\_u.cfm";
added="11/01/2003" id="i1a16869f8a24fd38e8000"
modified="11/01/2003">
					<title>Research Opportunities</title>
					<info>
						<metadata
owner="http://spaceresearch.nasa.gov/extranet"/>
					</info>
					<desc>Code U research opportunities</desc>
				</bookmark>
				<bookmark
href="http://research.hq.nasa.gov/taskbook.cfm";
added="11/01/2003" id="i1a16869f8a24ff83d8000"
modified="11/01/2003">
					<title>Research Task Book</title>
					<info>
						<metadata
owner="http://spaceresearch.nasa.gov/extranet"/>
					</info>
					<desc>Code U research task book</desc>
				</bookmark>
				<bookmark href="http://spd.nasa.gov/sourcebook/";
added="11/01/2003" id="i1a16869f8a250146f8000"
modified="11/01/2003">
					<title>Space Product Development</title>
					<info>
						<metadata
owner="http://spaceresearch.nasa.gov/extranet"/>
					</info>
					<desc>Code U space product development</desc>
				</bookmark>
				<bookmark href="http://commercial.hq.nasa.gov/";
added="11/01/2003" id="i1a16869f8a25347688000"
modified="11/01/2003">
					<title>Space Commercialization</title>
					<info>
						<metadata
owner="http://spaceresearch.nasa.gov/extranet"/>
					</info>
					<desc>Code U space commercialization</desc>
				</bookmark>
				<bookmark
href="http://intranet.hq.nasa.gov/basis\_codeu/main\_LIF.cfm";
added="11/01/2003" id="i1a16869f8a259ca668000"
modified="11/01/2003">
					<title>DMS</title>
					<info>
						<metadata
owner="http://spaceresearch.nasa.gov/extranet"/>
					</info>
					<desc>Code U document management system</desc>
				</bookmark>
			</folder>
		</folder>
		<folder xmlns="" id="i1ea2dfef93cd9a9d58000"
folded="no">
			<title>My Bookmarks</title>
			<folder xmlns="" id="i1ea2dfef93cd9a9d58001"
folded="no">
				<title>My Bookmarks Subfolder</title>
			</folder>
		</folder>
	</folder>
	<supplementalData xmlns="">
	
<imagePath>http://localhost:8080/cu_extranet/resources/images/</imagePath>
		<reqPermission>false</reqPermission>
	
<webPath>http://localhost:8080/cu_extranet/servlet/cu_extranet/</webPath>
		<folderID>i1a16869f8a253944f8000</folderID>
	</supplementalData>
</xbel>

XSLT: 

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xbel="http://www.python.org/topics/xml/xbel/";>
	<xsl:output method="html" version="1.0"
encoding="iso-8859-1" indent="yes"
omit-xml-declaration="yes" />
	<xsl:strip-space elements="*" />
	
	<xsl:variable name="webPath"
select="normalize-space(/xbel:xbel/supplementalData/webPath)"
/>
	<xsl:variable name="imagePath"
select="normalize-space(/xbel:xbel/supplementalData/imagePath)"
/>
	<xsl:variable name="folderID">
		<xsl:choose>
			<xsl:when
test="normalize-space(/xbel:xbel/supplementalData/folderID)">
				<xsl:value-of
select="normalize-space(/xbel:xbel/supplementalData/folderID)"
/>
			</xsl:when>
			<xsl:otherwise>
				<xsl:value-of
select="normalize-space(/xbel:xbel/folder[1]/@id)" />
			</xsl:otherwise>
		</xsl:choose>
	</xsl:variable>
	<xsl:variable name="redirectURL"
select="normalize-space(concat($webPath,'template/apps,bookmarks,viewFolderBookmarks.vm?folderID=',$folderID))"
/>
	<xsl:variable name="topBannerColor"
select="normalize-space(/xbel:xbel/supplementalData/topBannerColor)"
/>
	<xsl:variable name="portletBodyColor"
select="normalize-space(/xbel:xbel/supplementalData/portletBodyColor)"
/>
	
	<xsl:template match="/">
		<!--webPath: <xsl:value-of select="$webPath" /><br
/>
		imagePath: <xsl:value-of select="$imagePath" /><br
/>
		folderID: <xsl:value-of select="$folderID" /><br />
		redirectURL: <xsl:value-of select="$redirectURL"
/><br />-->
		<xsl:apply-templates select="xbel:xbel" />
	</xsl:template>
	
	<xsl:template match="xbel:xbel">
		<br />
		<p>Manage your folders and bookmarks below.</p>
		<table cellspacing="0" cellpadding="2" border="0"
width="90%">
			<xsl:apply-templates />
		</table>
		<br />
	</xsl:template>
	
	<xsl:template match="folder">
		<xsl:choose>
		<xsl:when test="@id=$folderID">
			<!-- still have to get parent folders for
breadcrumbs here -->
			<tr><td valign="top" colspan="2" class="bold"><img
src="{$imagePath}folder_icon2.gif" alt="Folder"
width="13" height="16" border="0"
/>&#160;<xsl:value-of select="../../folder/title"
/>&#160;&gt;&#160;<xsl:value-of select="title"
/></td><td align="right" colspan="2"><a
href="{$webPath}template/apps,bookmarks,addUpdateFolder.vm?folderID={$folderID}&amp;redirectURL={$redirectURL}">Add
Folder</a>&#160;|&#160;<a
href="{$webPath}template/apps,bookmarks,addUpdateFolder.vm?folderID={$folderID}&amp;redirectURL={$redirectURL}">Add
Bookmark</a></td></tr>
			<!--$session.topBannerColor -->
			<tr bgcolor="{$topBannerColor}"><th
align="left">Name</th><th
align="left">Description</th><th
align="left">&#160;</th><th
align="left">Action</th></tr>
		</xsl:when>
		<xsl:when test="parent::folder/@id=$folderID">
			<xsl:variable name="fid" select="@id" />
			<tr><td valign="top" width="30%"><a
href="{$webPath}template/apps,bookmarks,viewFolderBookmarks.vm?folderID={$fid}"><img
src="{$imagePath}folder_icon2.gif" alt="Folder"
width="13" height="16" border="0" /></a>&#160;<a
href="{$webPath}template/apps,bookmarks,viewFolderBookmarks.vm?folderID={$fid}"><xsl:value-of
select="title"
/></a></td><td>&#160;</td><td>&#160;</td><td
align="right" class="small" width="10%"><a
href="{$webPath}template/apps,bookmarks,addUpdateFolder.vm?folderID={$fid}&amp;redirectURL={$redirectURL}"><img
src="{$imagePath}edit_pencil.gif" alt="Edit Folder"
width="12" height="12" border="0" /></a>&#160;<a
href="{$webPath}template/confirmDelete.vm?folderID={$fid}&amp;message=folder"
onclick="rusure('Are you sure you want to delete this
folder and all of its
bookmarks?','{$webPath}template/confirmDelete.vm?folderID={$fid}&amp;message=folder');
return false;"><img src="{$imagePath}delete_x_red.gif"
alt="Delete Folder" width="16" height="12" border="0"
/></a></td></tr>
		</xsl:when>
		</xsl:choose>
		<xsl:apply-templates />
	</xsl:template>
	
	<xsl:template match="bookmark">
		<xsl:if test="parent::folder/@id=$folderID">
			<xsl:variable name="bid" select="@id" />
			<tr><td width="30%"><a href="{@href}"
target="_blank"><xsl:value-of select="title"
/></a></td><td width="40%">&#160;</td><td
width="20%">&#160;</td><td align="right" class="small"
width="10%"><a
href="{$webPath}template/apps,bookmarks,addUpdateBookmark.vm?bookmarkID={$bid}&amp;redirectURL={$redirectURL}"><img
src="{$imagePath}edit_pencil.gif" alt="Edit Bookmark"
width="12" height="12" border="0" /></a>&#160;<a
href="{$webPath}template/confirmDelete.vm?bookmarkID={$bid}&amp;message=bookmark"
onclick="rusure('Are you sure you want to delete this
bookmark?','{$webPath}template/confirmDelete.vm?bookmarkID={$bid}&amp;message=bookmark');
return false;"><img src="{$imagePath}delete_x_red.gif"
alt="Delete Bookmark" width="16" height="12"
border="0" /></a></td></tr>
		</xsl:if>
	</xsl:template>
	
	<xsl:template match="*" />
		
</xsl:stylesheet>




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