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1 package info.magnolia.cms.taglibs;
2
3 import info.magnolia.cms.core.Content;
4 import info.magnolia.cms.core.ItemType;
5 import info.magnolia.cms.util.Resource;
6
7 import java.util.Collection  ;
8 import java.util.Iterator ;
9
10 import javax.servlet.http.HttpServletRequest ;
11 import javax.servlet.jsp.JspException ;
12 import javax.servlet.jsp.tagext.TagSupport ;
13
14
15
19 public class PageIterator extends TagSupport {
20
21
24 private static final long serialVersionUID = 222L;
25
26 private Iterator contentIterator;
27
28 private String hiddenAttribute = "hidden";
29
30 public int doAfterBody() throws JspException {
31 boolean hasNext = nextContent();
32
33 if (hasNext) {
34 return EVAL_BODY_AGAIN;
35 }
36
37 return SKIP_BODY;
38 }
39
40 public int doEndTag() throws JspException {
41 HttpServletRequest request = (HttpServletRequest ) this.pageContext.getRequest();
42 Resource.restoreCurrentActivePage(request);
43
44 return EVAL_PAGE;
45 }
46
47 public int doStartTag() throws JspException {
48 initContentIterator();
49
50 boolean hasNext = nextContent();
51 if (hasNext) {
52 return EVAL_BODY_INCLUDE;
53 }
54
55 return SKIP_BODY;
56 }
57
58 public void release() {
59 this.contentIterator = null;
60 super.release();
61 }
62
63 public void setHiddenAttribute(String hiddenAttribute) {
64 this.hiddenAttribute = hiddenAttribute;
65 }
66
67 private void initContentIterator() {
68 HttpServletRequest req = (HttpServletRequest ) this.pageContext.getRequest();
69 Content activePage = Resource.getCurrentActivePage(req);
70 Collection children = activePage.getChildren(ItemType.CONTENT);
71
72 for (Iterator i = children.iterator(); i.hasNext();) {
73 Content c = (Content) i.next();
74 boolean hidden = c.getNodeData(this.hiddenAttribute).getBoolean();
75 if (hidden) {
76 i.remove();
77 }
78 }
79
80 this.contentIterator = children.iterator();
81 }
82
83
86 private boolean nextContent() {
87 if (this.contentIterator.hasNext()) {
88 HttpServletRequest request = (HttpServletRequest ) this.pageContext.getRequest();
89 Content page = (Content) this.contentIterator.next();
90
91 Resource.setCurrentActivePage(request, page);
92
93 return true;
94 }
95
96 return false;
97 }
98 }
99 |
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