mcs/class/System.Web/System.Web.UI/TemplateControlParser.cs

   1 //
   2 // System.Web.UI.TemplateControlParser
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2002 Ximian, Inc (http://www.ximian.com)
   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;
  31 using System.Collections;
  32 using System.IO;
  33 using System.Reflection;
  34 using System.Web.Compilation;
  35 using System.Web.Util;
  36
  37 namespace System.Web.UI
  38 {
  39         public abstract class TemplateControlParser : TemplateParser
  40         {
  41                 bool autoEventWireup = true;
  42                 bool enableViewState = true;
  43
  44                 protected TemplateControlParser ()
  45                 {
  46                 }
  47
  48                 internal override void ProcessMainAttributes (Hashtable atts)
  49                 {
  50                         autoEventWireup = GetBool (atts, "AutoEventWireup", PagesConfig.AutoEventWireup);
  51                         enableViewState = GetBool (atts, "EnableViewState", PagesConfig.EnableViewState);
  52
  53                         atts.Remove ("TargetSchema"); // Ignored
  54
  55                         base.ProcessMainAttributes (atts);
  56                 }
  57
  58                 internal object GetCompiledInstance ()
  59                 {
  60                         Type type = CompileIntoType ();
  61                         if (type == null)
  62                                 return null;
  63
  64                         object ctrl = Activator.CreateInstance (type);
  65                         if (ctrl == null)
  66                                 return null;
  67
  68                         HandleOptions (ctrl);
  69                         return ctrl;
  70                 }
  71
  72                 internal override void AddDirective (string directive, Hashtable atts)
  73                 {
  74                         int cmp = String.Compare ("Register", directive, true);
  75                         if (cmp == 0) {
  76                                 string tagprefix = GetString (atts, "TagPrefix", null);
  77                                 if (tagprefix == null || tagprefix.Trim () == "")
  78                                         ThrowParseException ("No TagPrefix attribute found.");
  79
  80                                 string ns = GetString (atts, "Namespace", null);
  81                                 string assembly = GetString (atts, "Assembly", null);
  82
  83                                 if (ns != null && assembly == null)
  84                                         ThrowParseException ("Need an Assembly attribute with Namespace.");
  85
  86                                 if (ns == null && assembly != null)
  87                                         ThrowParseException ("Need a Namespace attribute with Assembly.");
  88
  89                                 if (ns != null) {
  90                                         if (atts.Count != 0)
  91                                                 ThrowParseException ("Unknown attribute: " + GetOneKey (atts));
  92
  93                                         AddImport (ns);
  94                                         Assembly ass = AddAssemblyByName (assembly);
  95                                         AddDependency (ass.Location);
  96                                         RootBuilder.Foundry.RegisterFoundry (tagprefix, ass, ns);
  97                                         return;
  98                                 }
  99
 100                                 string tagname = GetString (atts, "TagName", null);
 101                                 string src = GetString (atts, "Src", null);
 102
 103                                 if (tagname == null && src != null)
 104                                         ThrowParseException ("Need a TagName attribute with Src.");
 105
 106                                 if (tagname != null && src == null)
 107                                         ThrowParseException ("Need a Src attribute with TagName.");
 108
 109                                 if (!src.EndsWith (".ascx"))
 110                                         ThrowParseException ("Source file extension for controls must be .ascx");
 111
 112                                 string realpath = MapPath (src);
 113                                 if (!File.Exists (realpath))
 114                                         throw new ParseException (Location, "Could not find file \""
 115                                                 + realpath + "\".");
 116
 117                                 try {
 118                                         AddDependency (realpath);
 119                                 } catch (Exception e) {
 120                                         throw new ParseException (Location, e.Message);
 121                                 }
 122
 123                                 string vpath = UrlUtils.Combine (BaseVirtualDir, src);
 124                                 Type type = UserControlParser.GetCompiledType (vpath, realpath, Context);
 125                                 AddAssembly (type.Assembly, true);
 126                                 RootBuilder.Foundry.RegisterFoundry (tagprefix, tagname, type);
 127                                 return;
 128                         }
 129
 130                         cmp = String.Compare ("Reference", directive, true);
 131                         if (cmp == 0) {
 132                                 string page = GetString (atts, "Page", null);
 133                                 string control = GetString (atts, "Control", null);
 134
 135                                 bool is_page = (page != null);
 136                                 if (!is_page && control == null)
 137                                         ThrowParseException ("Must provide 'page' or 'control' attribute");
 138
 139                                 if (is_page && control != null)
 140                                         ThrowParseException ("'page' and 'control' are mutually exclusive");
 141
 142                                 string filepath = (!is_page) ? control : page;
 143                                 filepath = MapPath (filepath);
 144                                 AddDependency (filepath);
 145                                 Type ctype;
 146                                 if (is_page) {
 147                                         PageParser pp = new PageParser (page, filepath, Context);
 148                                         ctype = pp.CompileIntoType ();
 149                                 } else {
 150                                         ctype = UserControlParser.GetCompiledType (control, filepath, Context);
 151                                 }
 152
 153                                 AddAssembly (ctype.Assembly, true);
 154                                 if (atts.Count != 0)
 155                                         ThrowParseException ("Unknown attribute: " + GetOneKey (atts));
 156
 157                                 return;
 158                         }
 159
 160                         base.AddDirective (directive, atts);
 161                 }
 162
 163                 internal override void HandleOptions (object obj)
 164                 {
 165                         Control ctrl = obj as Control;
 166                         ctrl.AutoEventWireup = autoEventWireup;
 167                         ctrl.EnableViewState = enableViewState;
 168                 }
 169
 170                 internal bool AutoEventWireup {
 171                         get { return autoEventWireup; }
 172                 }
 173
 174                 internal bool EnableViewState {
 175                         get { return enableViewState; }
 176                 }
 177         }
 178 }
 179