tree.ftl

JSP(Java Server Pages)是由Sun Microsystems公司倡导、许多公司参与一起建立的一种动态网页技术标准。 JSP技术是用JAVA语言作为脚本语言的

<#--
isCheckBox：是否是复选框。
checkBoxName：复选框的名称。
valueContent：值集合，指示复选框是否选中。
isLimited：是否限制显示内容，如果为true，则content必须存在。只有包含才content内的数据才会被显示。
content：显示内容的列表。
isUrl：是否有链接。
-->
<#macro tree root treeId="t" target="right" showDeep=0 isCheckBox=false checkBoxName="ids" valueContent=[] isLimited=false content=[] isUrl=true suffix="">
<div id=${treeId} class="p-tree">
<@drawNode node=root treeId=treeId pid=treeId target=target showDeep=showDeep isCheckBox=isCheckBox checkBoxName=checkBoxName valueContent=valueContent isLimited=isLimited content=content isUrl=isUrl suffix=suffix/>
</div>
</#macro>
<#--
DIV的ID命名规则及结构：
<pid-index>（整体）
	<pid-index-s>（self，自身）
		<空白列><线条列><节点列><名称列>
	</pid-index-s>
	<pid-index->（子集）
		...
	</pid-index->
</pid-index>
node：节点
deep：深度
isEndList：祖先节点是否为末节点
pid：父级ID
index：当前层的序号
-->
<#macro drawNode node pid treeId target showDeep isCheckBox checkBoxName valueContent=valueContent deep=0 isEndList=[true] index=0 isLimited=isLimited content=content isUrl=isUrl suffix=suffix>
<#local id=pid+'-'+index />
<#if showDeep gt deep>
	<#local isDisplay=true />
<#else>
	<#local isDisplay=false />
</#if>
<div id="${id}">
<div id="${id}-s" onmouseover="lineOver(this)" onmouseout="lineOut(this)" onclick="lineSelected(this,'${treeId}');" isDisplay="${isDisplay?string}">
<#--空格列-->
<#if deep gt 0>
<img src="${base+'/ftl_res/jeecms/img/s.gif'}" width="15px" /><#t/>
</#if>
<#--直线列-->
<#if deep gt 1>
	<#list 2..deep as i>
		<#if isEndList[i-1]>
			<img src="${base+'/ftl_res/jeecms/img/s.gif'}" width="15px" /><#t/>
		<#else>
			<img src="${base+'/ftl_res/jeecms/img/tree/elbow-line.gif'}" /><#t/>
		</#if>
	</#list>
</#if>
<#--节点列-->
<#if node.isLeaf??>
	<#assign isLeaf=node.isLeaf/>
<#elseif (node.child)??>
	<#assign isLeaf=!(node.child?size>0)/>
<#else>
	<#assign isLeaf=true/>
</#if>
<#if isDisplay>
	<#local openDisplay="" />
	<#local closeDisplay="display:none;" />
<#else>
	<#local openDisplay="display:none;" />
	<#local closeDisplay="" />
</#if>
<#if isLeaf && isEndList[deep]>
	<img src="${base+'/ftl_res/jeecms/img/tree/elbow-end.gif'}" /><img src="${base+'/ftl_res/jeecms/img/tree/leaf.gif'}" /><#t/>
<#elseif isLeaf && !isEndList[deep]>
	<img src="${base+'/ftl_res/jeecms/img/tree/elbow.gif'}" /><img src="${base+'/ftl_res/jeecms/img/tree/leaf.gif'}" /><#t/>
<#elseif !isLeaf && isEndList[deep]>
	<img id="${id}-co" src="${base+'/ftl_res/jeecms/img/tree/elbow-end-minus.gif'}" onclick="switchDisplay('${id}')" style="cursor:hand;${openDisplay}"/><#t/>
	<img id="${id}-cc" src="${base+'/ftl_res/jeecms/img/tree/elbow-end-plus.gif'}" onclick="switchDisplay('${id}')" style="cursor:hand;${closeDisplay}"/><#t/>
	<img id="${id}-fo" src="${base+'/ftl_res/jeecms/img/tree/folder-open.gif'}" style="${openDisplay}"/><#t/>
	<img id="${id}-fc" src="${base+'/ftl_res/jeecms/img/tree/folder.gif'}" style="${closeDisplay}"/><#t/>
<#elseif !isLeaf && !isEndList[deep]>
	<img id="${id}-co" src="${base+'/ftl_res/jeecms/img/tree/elbow-minus.gif'}" onclick="switchDisplay('${id}')" style="cursor:hand;${openDisplay}"/><#t/>
	<img id="${id}-cc" src="${base+'/ftl_res/jeecms/img/tree/elbow-plus.gif'}" onclick="switchDisplay('${id}')" style="cursor:hand;${closeDisplay}"/><#t/>
	<img id="${id}-fo" src="${base+'/ftl_res/jeecms/img/tree/folder-open.gif'}" style="${openDisplay}"/><#t/>
	<img id="${id}-fc" src="${base+'/ftl_res/jeecms/img/tree/folder.gif'}" style="${closeDisplay}"/><#t/>
</#if>
<#if isCheckBox>
<input type="checkbox" name="${checkBoxName}" <#rt/>
	<#if valueContent?seq_contains(node.id)>checked="true"</#if><#lt/>value="${node.id}" id="${id}-chk" class="p-tree-checkbox" size="0" hidefocus="true" onclick="switchSelect(this,'${id}','${treeId}');" /><#t/>
</#if>
<#--名称列-->
<#if !isLeaf>
<#if !isCheckBox>
&nbsp;<#t/>
</#if>
<span onclick="switchDisplay('${id}')" style="cursor:hand;">${node.name}</span>
</div>
<#--子节点开始-->
<div id="${id+'-'}" style="${openDisplay}">
<#list node.child as cnode>
<#if !isLimited || content?seq_contains(cnode)>
<@drawNode node=cnode target=target showDeep=showDeep deep=deep+1 isEndList=isEndList+[!cnode_has_next] pid=id treeId=treeId index=cnode_index isCheckBox=isCheckBox checkBoxName=checkBoxName valueContent=valueContent isLimited=isLimited content=content isUrl=isUrl suffix=suffix/>
</#if>
</#list>
</div>
<#else>
<#if isCheckBox || !isUrl>
<span>${node.name}</span>
<#else>
&nbsp;<a href="${base+node.url!}${suffix}" target="${target}">${node.name}</a>
</#if>
</div>
</#if>
</div>
</#macro>