189 lines
5.1 KiB
C#
189 lines
5.1 KiB
C#
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//
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// CleanHtmlTextWriter.cs
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//
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// An HtmlTextWriter that cleans stuff up for you a bit. Helps writing tests
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// because you do not have to reproduce the attribute order, etc.
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//
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// Author:
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// Ben Maurer <bmaurer@novell.com>
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//
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// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//#define TEST_THIS
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using System.Web.UI;
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using System;
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using System.IO;
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using System.Collections;
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class CleanHtmlTextWriter : HtmlTextWriter {
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public CleanHtmlTextWriter (TextWriter tw) : base (tw)
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{
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tw.NewLine = "\n";
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}
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ArrayList pending_attrs = new ArrayList ();
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ArrayList pending_styles = new ArrayList ();
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class PendingStyle : IComparable {
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public string name, value;
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public HtmlTextWriterStyle s;
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public PendingStyle (string name, string value, HtmlTextWriterStyle s)
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{
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this.name = name;
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this.value = value;
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this.s = s;
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}
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public int CompareTo (object o)
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{
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return string.CompareOrdinal (name, ((PendingStyle) o).name);
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}
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}
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class PendingAttribute : IComparable {
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public string name, value;
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public HtmlTextWriterAttribute a;
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public bool encode;
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public bool know_encode;
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public PendingAttribute (string name, string value, HtmlTextWriterAttribute a, bool encode, bool know_encode)
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{
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this.name = name;
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this.value = value;
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this.a = a;
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this.encode = encode;
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this.know_encode = know_encode;
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}
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public int CompareTo (object o)
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{
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return string.CompareOrdinal (name, ((PendingAttribute) o).name);
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}
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}
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bool filtering = false;
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//
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// Some idiot at microsoft did not do a sanity check on this api,
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// thus forcing me to deal with some serious pain.
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//
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public override void AddAttribute (HtmlTextWriterAttribute key, string value)
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{
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if (filtering) {
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base.AddAttribute (key, value);
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return;
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}
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pending_attrs.Add (new PendingAttribute (GetAttributeName (key), value, key, false, false));
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}
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public override void AddAttribute (HtmlTextWriterAttribute key, string value, bool fEncode)
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{
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if (filtering) {
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base.AddAttribute (key, value, fEncode);
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return;
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}
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pending_attrs.Add (new PendingAttribute (GetAttributeName (key), value, key, fEncode, true));
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}
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public override void AddAttribute (string name, string value)
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{
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if (filtering) {
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base.AddAttribute (name, value);
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return;
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}
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pending_attrs.Add (new PendingAttribute (name, value, 0, false, false));
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}
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public override void AddAttribute (string name, string value, bool fEncode)
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{
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if (filtering) {
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base.AddAttribute (name, value, fEncode);
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return;
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}
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pending_attrs.Add (new PendingAttribute (name, value, 0, fEncode, true));
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}
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protected override void AddAttribute (string name, string value, HtmlTextWriterAttribute key)
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{
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if (filtering) {
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base.AddAttribute (name, value, key);
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return;
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}
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pending_attrs.Add (new PendingAttribute (name, value, key, false, false));
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}
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// TODO: use the above retardation in this stuff
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protected override void AddStyleAttribute (string name, string value, HtmlTextWriterStyle s)
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{
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pending_styles.Add (new PendingStyle (name, value, s));
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}
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protected override void FilterAttributes ()
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{
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pending_attrs.Sort ();
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pending_styles.Sort ();
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filtering = true;
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foreach (PendingAttribute a in pending_attrs) {
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if (a.a == 0) {
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if (a.know_encode)
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base.AddAttribute (a.name, a.value, a.encode);
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else
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base.AddAttribute (a.name, a.value, a.encode);
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} else {
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if (a.know_encode)
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base.AddAttribute (a.a, a.value, a.encode);
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else
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base.AddAttribute (a.a, a.value, a.encode);
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}
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}
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foreach (PendingStyle s in pending_styles)
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base.AddStyleAttribute (s.name, s.value, s.s);
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filtering = false;
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pending_attrs.Clear ();
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pending_styles.Clear ();
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base.FilterAttributes ();
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}
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#if TEST_THIS
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static void Main ()
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{
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HtmlTextWriter w = new CleanHtmlTextWriter (Console.Out);
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w.AddAttribute (HtmlTextWriterAttribute.Name, "abcd");
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w.AddAttribute (HtmlTextWriterAttribute.Id, "efg");
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w.RenderBeginTag (HtmlTextWriterTag.Input);
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w.RenderEndTag ();
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Console.WriteLine ();
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}
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#endif
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}
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