TemplateBuilder.cs :  » 2.6.4-mono-.net-core » System.Web » System » Web » UI » C# / CSharp Open Source

//
// System.Web.UI.TemplateBuilder
//
// Authors:
//  Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (C) 2003 Ximian, Inc. (http://www.ximian.com)
// Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Reflection;
using System.Security.Permissions;

namespace System.Web.UI{

  // CAS
  [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  public class TemplateBuilder : ControlBuilder, ITemplate {

    string text;
    TemplateContainerAttribute containerAttribute;
    TemplateInstanceAttribute instanceAttribute;
    List <TemplateBinding> bindings;

    public TemplateBuilder ()
    {
    }

    internal TemplateBuilder (ICustomAttributeProvider prov)
    {
      object[] ats = prov.GetCustomAttributes (typeof (TemplateContainerAttribute), true);
      if (ats.Length > 0)
        containerAttribute = (TemplateContainerAttribute) ats [0];

      ats = prov.GetCustomAttributes (typeof (TemplateInstanceAttribute), true);
      if (ats.Length > 0)
        instanceAttribute = (TemplateInstanceAttribute) ats [0];
    }

    public virtual string Text {
      get { return text; }
      set { text = value; }
    }
    
    internal Type ContainerType {
      get { return containerAttribute != null ? containerAttribute.ContainerType : null; }
    }
    
    internal TemplateInstance? TemplateInstance {
      get { return instanceAttribute != null ? instanceAttribute.Instances : (TemplateInstance?)null; }
    }
          
    internal BindingDirection BindingDirection {
      get { return containerAttribute != null ? containerAttribute.BindingDirection : BindingDirection.TwoWay; }
    }
    
    internal void RegisterBoundProperty (Type controlType, string controlProperty, string controlId, string fieldName)
    {
      if (bindings == null)
        bindings = new List <TemplateBinding> ();
      bindings.Add (new TemplateBinding (controlType, controlProperty, controlId, fieldName));
    }
    
    internal ICollection Bindings {
      get { return bindings; }
    }

    public override object BuildObject ()
    {
      return base.BuildObject ();
    }

    public override void Init (TemplateParser parser,
            ControlBuilder parentBuilder,
            Type type,
            string tagName,
            string ID,
            IDictionary attribs)
    {
      // enough?
      if (parser != null)
        FileName = parser.InputFile;
      base.Init (parser, parentBuilder, type, tagName, ID, attribs);
    }
    
    public virtual void InstantiateIn (Control container)
    {
      CreateChildren (container);
    }

    public override bool NeedsTagInnerText ()
    {
      return false;
    }

    public override void SetTagInnerText (string text)
    {
      this.text = text;
    }
  }
  
  internal class TemplateBinding
  {
    public Type ControlType;
    public string ControlProperty;
    public string ControlId;
    public string FieldName;
    
    public TemplateBinding (Type controlType, string controlProperty, string controlId, string fieldName)
    {
      ControlType = controlType;
      ControlProperty = controlProperty;
      ControlId = controlId;
      FieldName = fieldName;
    }
  }
}