mcs/class/Mono.WebBrowser/Mono.Mozilla/DOM/HTMLElement.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2007, 2008 Novell, Inc.
  21 //
  22 // Authors:
  23 //      Andreia Gaita (avidigal@novell.com)
  24 //
  25
  26 using System;
  27 using System.Runtime.InteropServices;
  28 using System.Text;
  29 using io=System.IO;
  30 using Mono.WebBrowser;
  31 using Mono.WebBrowser.DOM;
  32
  33 namespace Mono.Mozilla.DOM
  34 {
  35         internal class HTMLElement : Element, IElement
  36         {
  37                 protected nsIDOMHTMLElement node {
  38                         get { return base.node as nsIDOMHTMLElement; }
  39                         set { base.node = value as nsIDOMElement; }
  40                 }
  41
  42                 public HTMLElement (WebBrowser control, nsIDOMHTMLElement domHtmlElement) : base (control, domHtmlElement as nsIDOMElement)
  43                 {
  44                         this.node = domHtmlElement;
  45                 }
  46
  47                 #region IDisposable Members
  48                 protected override  void Dispose (bool disposing)
  49                 {
  50                         if (!disposed) {
  51                                 if (disposing) {
  52                                         this.node = null;
  53                                 }
  54                         }
  55                         base.Dispose(disposing);
  56                 }
  57                 #endregion
  58
  59                 #region IElement Members
  60                 public new string InnerHTML
  61                 {
  62                         get {
  63                                 nsIDOMNSHTMLElement nsElem = this.node as nsIDOMNSHTMLElement;
  64                                 if (nsElem == null)
  65                                         return null;
  66                                 nsElem.getInnerHTML (storage);
  67                                 return Base.StringGet (storage);
  68                         }
  69                         set {
  70                                 nsIDOMNSHTMLElement nsElem = this.node as nsIDOMNSHTMLElement;
  71                                 if (nsElem == null)
  72                                         return;
  73                                 Base.StringSet (storage, value);
  74                                 nsElem.setInnerHTML (storage);
  75                         }
  76                 }
  77
  78                 public override string OuterHTML
  79                 {
  80                         // bad emulation of outerHTML since gecko doesn't support it :P
  81                         get {
  82                                 try {
  83                                         control.DocEncoder.Flags = DocumentEncoderFlags.OutputRaw;
  84                                         if (this.Equals (Owner.DocumentElement))
  85                                                 return control.DocEncoder.EncodeToString ((Document) Owner);
  86                                         return control.DocEncoder.EncodeToString (this);
  87                                 } catch {
  88                                         string tag = this.TagName;
  89                                         string str = "<" + tag;
  90                                         foreach (IAttribute att in this.Attributes) {
  91                                                 str += " " + att.Name + "=\"" + att.Value + "\"";
  92                                         }
  93                                         nsIDOMNSHTMLElement nsElem = this.node as nsIDOMNSHTMLElement;
  94                                         nsElem.getInnerHTML (storage);
  95                                         str += ">" + Base.StringGet (storage) + "</" + tag + ">";
  96                                         return str;
  97                                 }
  98                         }
  99                         set {
 100                                 nsIDOMDocumentRange docRange = ((Document) control.Document).XPComObject as nsIDOMDocumentRange;
 101                                 nsIDOMRange range;
 102                                 docRange.createRange (out range);
 103                                 range.setStartBefore (this.node);
 104                                 nsIDOMNSRange nsRange = range as nsIDOMNSRange;
 105                                 Base.StringSet (storage, value);
 106                                 nsIDOMDocumentFragment fragment;
 107                                 nsRange.createContextualFragment (storage, out fragment);
 108                                 nsIDOMNode parent;
 109                                 this.node.getParentNode (out parent);
 110                                 parent = nsDOMNode.GetProxy (this.control, parent);
 111                                 nsIDOMNode newNode;
 112                                 parent.replaceChild (fragment as nsIDOMNode, this.node as nsIDOMNode, out newNode);
 113                                 this.node = newNode as Mono.Mozilla.nsIDOMHTMLElement;
 114                         }
 115                 }
 116
 117                 public override io.Stream ContentStream {
 118                         get {
 119                                 try {
 120                                         control.DocEncoder.Flags = DocumentEncoderFlags.OutputRaw;
 121                                         if (this.Equals (Owner.DocumentElement))
 122                                                 return control.DocEncoder.EncodeToStream ((Document) Owner);
 123                                         return control.DocEncoder.EncodeToStream (this);
 124                                 } catch {
 125                                         string tag = this.TagName;
 126                                         string str = "<" + tag;
 127                                         foreach (IAttribute att in this.Attributes) {
 128                                                 str += " " + att.Name + "=\"" + att.Value + "\"";
 129                                         }
 130                                         nsIDOMNSHTMLElement nsElem = this.node as nsIDOMNSHTMLElement;
 131                                         nsElem.getInnerHTML (storage);
 132                                         str += ">" + Base.StringGet (storage) + "</" + tag + ">";
 133                                         byte[] bytes = System.Text.ASCIIEncoding.UTF8.GetBytes (str);
 134                                         return new io.MemoryStream (bytes);
 135                                 }
 136                         }
 137                 }
 138
 139
 140                 public override bool Disabled
 141                 {
 142                         get {
 143                                 if (this.HasAttribute ("disabled")) {
 144                                         string dis = this.GetAttribute ("disabled");
 145                                         return bool.Parse (dis);
 146                                 }
 147                                 return false;
 148                         }
 149                         set {
 150                                 if (this.HasAttribute ("disabled")) {
 151                                         this.SetAttribute ("disabled", value.ToString ());
 152                                 }
 153                         }
 154                 }
 155
 156                 public override int TabIndex {
 157                         get {
 158                                 int tabIndex;
 159                                 ((nsIDOMNSHTMLElement)this.node).getTabIndex (out tabIndex);
 160                                 return tabIndex;
 161                         }
 162                         set {
 163                                 ((nsIDOMNSHTMLElement)this.node).setTabIndex (value);
 164                         }
 165                 }
 166
 167                 public override int GetHashCode () {
 168                         return this.hashcode;
 169                 }
 170                 #endregion
 171         }
 172 }