/mcs/class/System.Xml.Linq/System.Xml.Linq/XObject.cs
C# | 223 lines | 163 code | 35 blank | 25 comment | 32 complexity | 88e88e76fb53bbc92e119fbb0f9a0232 MD5 | raw file
Possible License(s): Unlicense, Apache-2.0, LGPL-2.0, MPL-2.0-no-copyleft-exception, CC-BY-SA-3.0, GPL-2.0
- //
- // Authors:
- // Atsushi Enomoto
- //
- // Copyright 2007 Novell (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;
- using System.Collections.Generic;
- using System.Linq;
- using System.Xml;
- namespace System.Xml.Linq
- {
- public abstract class XObject : IXmlLineInfo
- {
- internal XObject ()
- {
- }
- XContainer owner;
- List<object> annotations;
- string baseuri;
- int line, column;
- public event EventHandler<XObjectChangeEventArgs> Changing;
- public event EventHandler<XObjectChangeEventArgs> Changed;
- public string BaseUri {
- get { return baseuri; }
- internal set { baseuri = value; }
- }
- public XDocument Document {
- get {
- if (this is XDocument)
- return (XDocument) this;
- for (XContainer e = owner; e != null; e = e.owner)
- if (e is XDocument)
- return (XDocument) e;
- return null;
- }
- }
- public abstract XmlNodeType NodeType { get; }
- public XElement Parent {
- get { return owner as XElement; }
- }
- internal XContainer Owner {
- get { return owner; }
- }
- internal void SetOwner (XContainer node)
- {
- owner = node;
- }
- public void AddAnnotation (object annotation)
- {
- if (annotation == null)
- throw new ArgumentNullException ("annotation");
- if (annotations == null)
- annotations = new List<object> ();
- annotations.Add (annotation);
- }
- public T Annotation<T> () where T : class
- {
- return (T) Annotation (typeof (T));
- }
- public object Annotation (Type type)
- {
- return Annotations (type).FirstOrDefault ();
- }
- public IEnumerable<T> Annotations<T> () where T : class
- {
- foreach (T o in Annotations (typeof (T)))
- yield return o;
- }
- public IEnumerable<object> Annotations (Type type)
- {
- if (type == null)
- throw new ArgumentNullException ("type");
- if (annotations == null)
- yield break;
- foreach (object o in annotations)
- if (type.IsAssignableFrom (o.GetType ()))
- yield return o;
- }
- public void RemoveAnnotations<T> () where T : class
- {
- RemoveAnnotations (typeof (T));
- }
- public void RemoveAnnotations (Type type)
- {
- if (annotations == null)
- return;
- for (int i = 0; i < annotations.Count; i++)
- if (type.IsAssignableFrom (annotations [i].GetType ()))
- annotations.RemoveAt (i);
- }
- internal int LineNumber {
- get { return line; }
- set { line = value; }
- }
- internal int LinePosition {
- get { return column; }
- set { column = value; }
- }
- int IXmlLineInfo.LineNumber {
- get { return LineNumber; }
- }
- int IXmlLineInfo.LinePosition {
- get { return LinePosition; }
- }
- bool IXmlLineInfo.HasLineInfo ()
- {
- return line > 0;
- }
- internal void FillLineInfoAndBaseUri (XmlReader r, LoadOptions options)
- {
- if ((options & LoadOptions.SetLineInfo) != LoadOptions.None) {
- IXmlLineInfo li = r as IXmlLineInfo;
- if (li != null && li.HasLineInfo ()) {
- LineNumber = li.LineNumber;
- LinePosition = li.LinePosition;
- }
- }
- if ((options & LoadOptions.SetBaseUri) != LoadOptions.None)
- BaseUri = r.BaseURI;
- }
-
- internal void OnAddingObject (object addedObject)
- {
- OnChanging (addedObject, new XObjectChangeEventArgs (XObjectChange.Add));
- }
- internal void OnAddedObject (object addedObject)
- {
- OnChanged (addedObject, new XObjectChangeEventArgs (XObjectChange.Add));
- }
- internal void OnNameChanging (object renamedObject)
- {
- OnChanging (renamedObject, new XObjectChangeEventArgs (System.Xml.Linq.XObjectChange.Name));
- }
- internal void OnNameChanged (object renamedObject)
- {
- OnChanged (renamedObject, new XObjectChangeEventArgs (System.Xml.Linq.XObjectChange.Name));
- }
-
- internal void OnRemovingObject (object removedObject)
- {
- OnChanging (removedObject, new XObjectChangeEventArgs (XObjectChange.Remove));
- }
- internal void OnRemovedObject (object removedObject)
- {
- OnChanged (removedObject, new XObjectChangeEventArgs (XObjectChange.Remove));
- }
- internal void OnValueChanging (object changedObject)
- {
- OnChanging (changedObject, new XObjectChangeEventArgs (XObjectChange.Value));
- }
- internal void OnValueChanged (object changedObject)
- {
- OnChanged (changedObject, new XObjectChangeEventArgs (XObjectChange.Value));
- }
-
- void OnChanging (object sender, XObjectChangeEventArgs args)
- {
- if (Changing != null)
- Changing (sender, args);
- if (Parent != null)
- Parent.OnChanging (sender, args);
- }
- void OnChanged (object sender, XObjectChangeEventArgs args)
- {
- if (Changed != null)
- Changed (sender, args);
- if (Parent != null)
- Parent.OnChanged (sender, args);
- }
- }
- }