2010-01-20 Zoltan Varga <vargaz@gmail.com>
[mono.git] / mcs / class / System.Web / System.Web.UI / HiddenFieldPageStatePersister.cs
1 //
2 // System.Web.Compilation.AppCodeCompiler: A compiler for the App_Code folder
3 //
4 // Authors:
5 //   Marek Habersack (grendello@gmail.com)
6 //
7 // (C) 2006 Marek Habersack
8 //
9
10 //
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
18 // 
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
21 // 
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 using System.Security.Permissions;
31
32 namespace System.Web.UI 
33 {
34 #if NET_2_0
35         // CAS
36         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
37         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
38         public
39 #else
40         internal
41 #endif
42         class HiddenFieldPageStatePersister : PageStatePersister
43         {
44                 public HiddenFieldPageStatePersister (Page page)
45                         : base(page)
46                 {
47                 }
48                 
49                 public override void Load ()
50                 {
51 #if TARGET_J2EE
52                         if (Page.FacesContext != null) {
53                                 if (Page.PageState != null) {
54                                         ViewState = Page.PageState.First;
55                                         ControlState = Page.PageState.Second;
56                                 }
57                                 return;
58                         }
59 #endif
60                         IStateFormatter formatter = StateFormatter;
61                         Pair pair = formatter.Deserialize (Page.RawViewState) as Pair;
62                         if (pair != null) {
63                                 ViewState = pair.First;
64                                 ControlState = pair.Second;
65                         }
66                 }
67
68                 public override void Save ()
69                 {
70 #if TARGET_J2EE
71                         if (Page.FacesContext != null) {
72                                 if (ViewState != null || ControlState != null)
73                                         Page.PageState = new Pair (ViewState, ControlState);
74                                 return;
75                         }
76 #endif
77                         IStateFormatter formatter = StateFormatter;
78                         Page.RawViewState = formatter.Serialize (new Pair (ViewState, ControlState));
79                 }
80         }
81 }
82