mcs/class/System.Design/System.ComponentModel.Design/DesignModeNestedContainer.cs

   1 //
   2 // System.ComponentModel.Design.DesignModeSite
   3 //
   4 // Authors:
   5 //        Ivan N. Zlatev (contact i-nZ.net)
   6 //
   7 // (C) 2007 Ivan N. Zlatev
   8
   9 //
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_2_0
  30
  31 using System;
  32 using System.Collections;
  33 using System.ComponentModel;
  34 using System.ComponentModel.Design.Serialization;
  35
  36 namespace System.ComponentModel.Design
  37 {
  38
  39         internal class DesignModeNestedContainer : NestedContainer
  40         {
  41
  42                 // DesignModeNestedContainer is a NestedContainer where:
  43                 //  * Site's Name property is a qualified name that includes the owning component's name
  44                 // followed by a period (.) and the child component's name.
  45                 //  * GetService is routed through the owner
  46
  47                 private class Site : DesignModeSite, INestedSite
  48                 {
  49
  50                         public Site (IComponent component, string name, IContainer container, IServiceProvider serviceProvider) :
  51                                 base (component,  name,  container,  serviceProvider)
  52                         {
  53                         }
  54
  55                         // [owner].[container].[site]
  56                         //
  57                         public string FullName {
  58                                 get {
  59                                         if (this.Name == null)
  60                                                 return null;
  61
  62                                         string ownerName = ((DesignModeNestedContainer)this.Container).OwnerName;
  63                                         if (ownerName == null)
  64                                                 return this.Name;
  65
  66                                         return ownerName + "." + this.Name;
  67                                 }
  68                         }
  69                 }
  70
  71                 private string _containerName;
  72
  73                 public DesignModeNestedContainer (IComponent owner, string containerName) : base (owner)
  74                 {
  75                         _containerName = containerName;
  76                 }
  77
  78                 public override void Add (IComponent component, string name)
  79                 {
  80                         if (this.Owner.Site != null) {
  81                            DesignerHost host = this.Owner.Site.GetService (typeof (IDesignerHost)) as DesignerHost;
  82                            if (host != null) {
  83                                    host.AddPreProcess (component, name);
  84                                    base.Add (component, name);
  85                                    host.AddPostProcess (component, name);
  86                            }
  87                         }
  88                 }
  89
  90                 public override void Remove (IComponent component)
  91                 {
  92                         if (this.Owner.Site != null) {
  93                            DesignerHost host = this.Owner.Site.GetService (typeof (IDesignerHost)) as DesignerHost;
  94                            if (host != null) {
  95                                    host.RemovePreProcess (component);
  96                                    base.Remove (component);
  97                                    host.RemovePostProcess (component);
  98                            }
  99                         }
 100                 }
 101
 102                 // [owner].[container]
 103                 //
 104                 protected override string OwnerName {
 105                         get {
 106                                 if (_containerName != null)
 107                                         return base.OwnerName + "." + _containerName;
 108                                 else
 109                                         return base.OwnerName;
 110                         }
 111                 }
 112
 113                 protected override ISite CreateSite (IComponent component, string name)
 114                 {
 115                         if (component == null)
 116                                 throw new ArgumentNullException("component");
 117
 118                         if (Owner.Site == null)
 119                                 throw new InvalidOperationException ("Owner not sited.");
 120
 121                         return new DesignModeNestedContainer.Site (component, name, this, (IServiceProvider)Owner.Site);
 122                 }
 123
 124                 protected override object GetService (Type service)
 125                 {
 126                         if (service == typeof (INestedContainer))
 127                                 return this;
 128
 129                         object serviceInstance = null;
 130
 131                         if (this.Owner.Site != null)
 132                                 serviceInstance = this.Owner.Site.GetService (service);
 133
 134                         if (serviceInstance == null)
 135                                 return base.GetService (service);
 136
 137                         return null;
 138                 }
 139         }
 140 }
 141 #endif