MonoRail/Castle.MonoRail.Framework/ViewComponents/SelectStylePagination.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.MonoRail.Framework.ViewComponents
  16 {
  17         using System;
  18         using System.Collections;
  19         using System.IO;
  20
  21         /// <summary>
  22         /// Pendent
  23         /// </summary>
  24         [ViewComponentDetails("SelectStylePagination", Sections="startblock,endblock,first,last,next,prev,link,select")]
  25         public class SelectStylePagination : AbstractPaginationViewComponent
  26         {
  27                 private const string NextSection = "next";
  28                 private const string PrevSection = "prev";
  29                 private const string FirstSection = "first";
  30                 private const string LastSection = "last";
  31                 private const string LinkSection = "link";
  32                 private const string SelectSection = "select";
  33
  34                 /// <summary>
  35                 /// Called by the framework so the component can
  36                 /// render its content
  37                 /// </summary>
  38                 public override void Render()
  39                 {
  40                         StringWriter writer = new StringWriter();
  41
  42                         StartBlock(writer);
  43                         WriteFirst(writer);
  44                         WritePrev(writer);
  45
  46                         WriteSelect(writer);
  47
  48                         WriteNext(writer);
  49                         WriteLast(writer);
  50                         EndBlock(writer);
  51
  52                         RenderText(writer.ToString());
  53                 }
  54
  55                 private void WriteSelect(StringWriter writer)
  56                 {
  57                         if (Context.HasSection(SelectSection))
  58                         {
  59                                 Context.RenderSection(SelectSection, writer);
  60                         }
  61                         else
  62                         {
  63                                 writer.WriteLine("<select onchange=\"window.location.href = this.options[this.selectedIndex].value;\">");
  64
  65                                 for (int i = 1; i <= Page.LastIndex; i++)
  66                                 {
  67                                         string addition = Page.CurrentIndex == i ? " selected=\"true\"" : "";
  68                                         writer.WriteLine("\t<option value=\"" + CreateUrlForPage(i) + "\"" + addition +">Page " + i + "</option>");
  69                                 }
  70
  71                                 writer.WriteLine("</select>");
  72                         }
  73                 }
  74
  75                 private void WriteFirst(StringWriter writer)
  76                 {
  77                         string caption = "&laquo;&laquo;";
  78
  79                         if (Context.HasSection(FirstSection))
  80                         {
  81                                 TextWriter capWriter = new StringWriter();
  82                                 Context.RenderSection(FirstSection, capWriter);
  83                                 caption = capWriter.ToString().Trim();
  84                         }
  85
  86                         WriteLink(writer, Page.FirstIndex, caption, !Page.HasFirst);
  87                 }
  88
  89                 private void WriteLast(StringWriter writer)
  90                 {
  91                         string caption = "&raquo;&raquo;";
  92
  93                         if (Context.HasSection(LastSection))
  94                         {
  95                                 TextWriter capWriter = new StringWriter();
  96                                 Context.RenderSection(LastSection, capWriter);
  97                                 caption = capWriter.ToString().Trim();
  98                         }
  99
 100                         WriteLink(writer, Page.LastIndex, caption, !Page.HasLast);
 101                 }
 102
 103                 private void WritePrev(StringWriter writer)
 104                 {
 105                         string caption = "&laquo;";
 106
 107                         if (Context.HasSection(PrevSection))
 108                         {
 109                                 TextWriter capWriter = new StringWriter();
 110                                 Context.RenderSection(PrevSection, capWriter);
 111                                 caption = capWriter.ToString().Trim();
 112                         }
 113
 114                         WriteLink(writer, Page.PreviousIndex, caption, !Page.HasPrevious);
 115                 }
 116
 117                 private void WriteNext(StringWriter writer)
 118                 {
 119                         string caption = "&raquo;";
 120
 121                         if (Context.HasSection(NextSection))
 122                         {
 123                                 TextWriter capWriter = new StringWriter();
 124                                 Context.RenderSection(NextSection, capWriter);
 125                                 caption = capWriter.ToString().Trim();
 126                         }
 127
 128                         WriteLink(writer, Page.NextIndex, caption, !Page.HasNext);
 129                 }
 130
 131                 private void WriteLink(TextWriter writer, int index, string text, bool disabled)
 132                 {
 133                         if (disabled)
 134                         {
 135                                 if (UseInlineStyle)
 136                                 {
 137                                         writer.Write(String.Format("<span style=\"color: #DDD; padding: 2px 5px 2px 5px; margin: 2px; border: 1px solid #EEE;\">{0}</span>", text));
 138                                 }
 139                                 else
 140                                 {
 141                                         writer.Write(String.Format("<span class=\"disabled\">{0}</span>", text));
 142                                 }
 143                         }
 144                         else
 145                         {
 146                                 WritePageLink(writer, index, text, null);
 147                         }
 148                 }
 149
 150                 /// <summary>
 151                 /// Writes the Page link.
 152                 /// </summary>
 153                 /// <param name="writer">The writer.</param>
 154                 /// <param name="pageIndex">Index of the page.</param>
 155                 /// <param name="text">The text.</param>
 156                 /// <param name="htmlAttributes">The HTML attributes.</param>
 157                 protected void WritePageLink(TextWriter writer, int pageIndex, String text, IDictionary htmlAttributes)
 158                 {
 159                         string url = CreateUrlForPage(pageIndex);
 160
 161                         if (Context.HasSection(LinkSection))
 162                         {
 163                                 PropertyBag["pageIndex"] = pageIndex;
 164                                 PropertyBag["text"] = text;
 165                                 PropertyBag["url"] = url;
 166
 167                                 Context.RenderSection(LinkSection, writer);
 168                         }
 169                         else
 170                         {
 171                                 String href;
 172
 173                                 if (PaginateFunction != null)
 174                                 {
 175                                         href = "javascript:" + PaginateFunction + "(" + pageIndex + ");void(0);";
 176                                 }
 177                                 else
 178                                 {
 179                                         href = url;
 180                                 }
 181
 182                                 if (UseInlineStyle)
 183                                 {
 184                                         writer.Write(String.Format("<a style=\"color: #000099;text-decoration: none;padding: 2px 5px 2px 5px;margin: 2px;border: 1px solid #AAAFEE;\" href=\"{0}\">{1}</a>\r\n", href, text));
 185                                 }
 186                                 else
 187                                 {
 188                                         writer.Write(String.Format("<a href=\"{0}\">{1}</a>\r\n", href, text));
 189                                 }
 190                         }
 191                 }
 192         }
 193 }