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25 package org.riotfamily.pages.macro;
26
27 import java.util.ArrayList  ;
28 import java.util.Collection ;
29 import java.util.Iterator ;
30 import java.util.List ;
31 import java.util.Locale ;
32
33 import javax.servlet.http.HttpServletRequest ;
34
35 import org.riotfamily.components.context.PageRequestUtils;
36 import org.riotfamily.components.editor.EditModeUtils;
37 import org.riotfamily.pages.Page;
38 import org.riotfamily.pages.Site;
39 import org.riotfamily.pages.dao.PageDao;
40 import org.riotfamily.pages.mapping.PageHandlerMapping;
41 import org.riotfamily.pages.mapping.PageLocationResolver;
42 import org.springframework.util.StringUtils;
43
44
48 public class PageMacroHelper {
49
50 private static final String PAGE_REFRESHED = PageMacroHelper.class.getName()
51 + ".refreshedPage";
52
53 private PageDao pageDao;
54
55 private PageLocationResolver resolver;
56
57 private HttpServletRequest request;
58
59 public PageMacroHelper(PageDao pageDao, PageLocationResolver resolver,
60 HttpServletRequest request) {
61
62 this.pageDao = pageDao;
63 this.resolver = resolver;
64 this.request = request;
65 }
66
67 public Page getCurrentPage() {
68 Page page = PageHandlerMapping.getPage(request);
69 if (PageRequestUtils.isPartialRequest(request)
70 && request.getAttribute(PAGE_REFRESHED) == null) {
71
72 pageDao.refreshPage(page);
73 request.setAttribute(PAGE_REFRESHED, Boolean.TRUE);
74 }
75 return page;
76 }
77
78 public Page getPageForHandler(String handlerName, String localeString) {
79 Locale locale = StringUtils.parseLocaleString(localeString);
80 return getPageForHandler(handlerName, locale);
81 }
82
83 public Page getPageForHandler(String handlerName, Locale locale) {
84 return pageDao.findPageForHandler(handlerName, locale);
85 }
86
87 public List getPagesForHandler(String handlerName, Locale locale) {
88 return pageDao.findPagesForHandler(handlerName, locale);
89 }
90
91 public Collection getTopLevelPages(Locale locale) {
92 Site site = getCurrentPage().getNode().getSite();
93 return pageDao.findRootNode(site).getChildPages(locale);
94 }
95
96 public String getUrl(Page page) {
97 if (page != null) {
98 return resolver.getUrl(page);
99 }
100 return null;
101 }
102
103 public boolean isVisible(Page page) {
104 return !page.isHidden() && !page.getNode().isHidden()
105 && (page.isEnabled() || EditModeUtils.isEditMode(request));
106 }
107
108 public Collection getVisiblePages(Collection pages) {
109 ArrayList result = new ArrayList ();
110 Iterator it = pages.iterator();
111 while (it.hasNext()) {
112 Page page = (Page) it.next();
113 if (isVisible(page)) {
114 result.add(page);
115 }
116 }
117 return result;
118 }
119
120 public List group(Collection pages, int size) {
121 ArrayList groups = new ArrayList ();
122 int i = 0;
123 ArrayList group = null;
124 Iterator it = pages.iterator();
125 while (it.hasNext()) {
126 Page page = (Page) it.next();
127 if (isVisible(page)) {
128 if (i++ % size == 0) {
129 group = new ArrayList ();
130 groups.add(group);
131 }
132 group.add(page);
133 }
134 }
135 return groups;
136 }
137 }
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