comparison src/nabble/view/lib/HtmlViewUtils.jtp @ 0:7ecd1a4ef557

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author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 21 Mar 2019 19:15:52 -0600
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-1:000000000000 0:7ecd1a4ef557
1 <%
2 package nabble.view.lib;
3
4 import java.io.IOException;
5 import java.io.PrintWriter;
6 import javax.servlet.http.HttpServletRequest;
7 import javax.servlet.http.HttpServletResponse;
8
9
10 // used outside nabble, so do not use Init
11 public final class HtmlViewUtils {
12
13 private HtmlViewUtils() {} // never
14
15
16 /** Number of pages to be displayed before/after the current page*/
17 public static final int NEIGHBOR_PAGES = 3;
18
19 public static interface PagingPath {
20 public String path(int row);
21 }
22
23 public static final class GenericPagingPath implements PagingPath {
24 private final String url;
25
26 public GenericPagingPath(String url) {
27 this.url = url;
28 }
29
30 public String path(int row) {
31 return url + (row==0 ? "" : "&i=" + row);
32 }
33 }
34
35 public static void genericPaging(HttpServletRequest request,HttpServletResponse response, int count, int currentRecord, int maxRows, PagingPath pagingPath, String margins)
36 throws IOException
37 {
38 genericPaging(request, response, count, currentRecord, maxRows, pagingPath, margins, false, NEIGHBOR_PAGES);
39 }
40
41 public static void genericPaging(HttpServletRequest request,HttpServletResponse response, int count, int currentRecord, int maxRows, PagingPath pagingPath, String margins, boolean hideLastPage,int NEIGHBOR_PAGES)
42 throws IOException
43 {
44 PrintWriter out = response.getWriter();
45 if (count > maxRows) {
46 %>
47 <style type="text/css">
48 span.page { padding: .1em .3em }
49 span.current-page { border-width:1px; border-style:solid; }
50 </style>
51 <span style="float:right;white-space:nowrap;padding:<%=margins%>;font-weight:normal">
52 <%
53 int currentPage = (currentRecord / maxRows) + 1;
54 int lastPage = count / maxRows;
55 // If there are more items on the next page...
56 if (count % maxRows > 0)
57 lastPage++; // ... I increment the last page.
58
59 int before = currentPage - NEIGHBOR_PAGES;
60 int after = currentPage + NEIGHBOR_PAGES;
61 if (before <= 1) {
62 // Among the first pages
63 int limit = Math.min(currentPage + NEIGHBOR_PAGES, lastPage);
64
65 for (int i = 1; i <= limit; i++) {
66 if (i == currentPage) {
67 %>
68 <span class="current-page page medium-border-color"><%=i%></span>
69 <%
70 } else {
71 int page = (i-1) * maxRows;
72 %>
73 <span class="page">
74 <a href="<%=pagingPath.path(page)%>" title="page <%=i%>"><%=i%></a>
75 </span>
76 <%
77 }
78 }
79
80 if (limit < lastPage) {
81 int page = (lastPage-1) * maxRows;
82 boolean atEnd = after == lastPage-1;
83 %>
84 <%=atEnd? "" : "..."%>
85 <% if (!hideLastPage || atEnd) { %>
86 <span class="page">
87 <a href="<%=pagingPath.path(page)%>" title="page <%=lastPage%>"<%=atEnd? "" : " rel=\"nofollow\""%>><%=lastPage%></a>
88 </span>
89 <% } %>
90 <%
91 }
92 } else if (before > 1 && after < lastPage) {
93 // In the middle pages
94 %>
95 <span class="page">
96 <a href="<%=pagingPath.path(0)%>" title="page 1">1</a>
97 </span>
98 <%=before == 2? "" : "..."%>
99 <%
100 int limit = before + 2 * NEIGHBOR_PAGES;
101 for (int i = before; i <= limit; i++) {
102 if (i == currentPage) {
103 %><span class="current-page page medium-border-color"><%=i%></span><%
104 } else {
105 int page = (i-1) * maxRows;
106 %>
107 <span class="page">
108 <a href="<%=pagingPath.path(page)%>" title="page <%=i%>"><%=i%></a>
109 </span>
110 <%
111 }
112 }
113
114 if (limit < lastPage) {
115 int page = (lastPage-1) * maxRows;
116 boolean atEnd = after == lastPage-1;
117 %>
118 <%=atEnd? "" : "..."%>
119 <% if (!hideLastPage || atEnd) { %>
120 <span class="page">
121 <a href="<%=pagingPath.path(page)%>" title="page <%=lastPage%>"<%=atEnd? "" : " rel=\"nofollow\""%>><%=lastPage%></a>
122 </span>
123 <% } %>
124 <%
125 }
126 } else {
127 // Among the last pages
128 %>
129 <span class="page">
130 <a href="<%=pagingPath.path(0)%>" title="page 1">1</a>
131 </span>
132 <%=before == 2? "" : "..."%>
133 <%
134 for (int i = before; i <= lastPage; i++) {
135 if (i == currentPage) {
136 %><span class="current-page page medium-border-color"><%=i%></span><%
137 } else {
138 int page = (i-1) * maxRows;
139 %>
140 <span class="page">
141 <a href="<%=pagingPath.path(page)%>" title="page <%=i%>"><%=i%></a>
142 </span>
143 <%
144 }
145 }
146 }
147 %>
148 </span>
149 <%
150 }
151 }
152
153 public static void googleAnalytics(PrintWriter out) {
154 %>
155 <script>
156 (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
157 (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
158 m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
159 })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
160
161 ga('create', 'UA-91855-9', 'auto', 'nabble');
162 ga('nabble.send', 'pageview');
163 </script>
164 <%
165 }
166
167 }
168 %>