Implement disabled pseudo class selector. Minor refactoring.

DEVSIX-1973

Autoported commit.
Original commit hash: [83282e402]

Author: ars18wrw

itext.tests/itext.styledxmlparser.tests/itext/styledxmlparser/css/selector/item/CssPseudoClassDisabledSelectorItemTest.cs

@@ -0,0 +1,32 @@
+using System;
+using System.IO;
+using iText.StyledXmlParser;
+using iText.StyledXmlParser.Node;
+using iText.StyledXmlParser.Node.Impl.Jsoup;
+using iText.StyledXmlParser.Node.Impl.Jsoup.Node;
+using iText.Test;
+
+namespace iText.StyledXmlParser.Css.Selector.Item {
+    public class CssPseudoClassDisabledSelectorItemTest : ExtendedITextTest {
+        private static readonly String sourceFolder = iText.Test.TestUtil.GetParentProjectDirectory(NUnit.Framework.TestContext
+            .CurrentContext.TestDirectory) + "/resources/itext/styledxmlparser/css/selector/item/CssPseudoClassDisabledSelectorItemTest/";
+
+        /// <exception cref="System.IO.IOException"/>
+        [NUnit.Framework.Test]
+        public virtual void TestDisabledSelector() {
+            String filename = sourceFolder + "disabled.html";
+            CssPseudoClassDisabledSelectorItem item = CssPseudoClassDisabledSelectorItem.GetInstance();
+            IXmlParser htmlParser = new JsoupHtmlParser();
+            IDocumentNode documentNode = htmlParser.Parse(new FileStream(filename, FileMode.Open, FileAccess.Read), "UTF-8"
+                );
+            IElementNode disabledInput = new JsoupElementNode(((JsoupDocumentNode)documentNode).GetDocument().GetElementsByTag
+                ("input").First());
+            IElementNode enabledInput = new JsoupElementNode(((JsoupDocumentNode)documentNode).GetDocument().GetElementsByTag
+                ("input")[1]);
+            NUnit.Framework.Assert.IsFalse(item.Matches(documentNode));
+            NUnit.Framework.Assert.IsTrue(item.Matches(disabledInput));
+            NUnit.Framework.Assert.IsFalse(item.Matches(enabledInput));
+            NUnit.Framework.Assert.IsFalse(item.Matches(null));
+        }
+    }
+}

itext.tests/itext.styledxmlparser.tests/resources/itext/styledxmlparser/css/selector/item/CssPseudoClassDisabledSelectorItemTest/disabled.html

@@ -0,0 +1,2 @@
+<input type="text" disabled name="FirstD" value="Mickey">
+<input type="text" name="FirstE" value="Mickey">

itext/itext.styledxmlparser/itext/styledxmlparser/CommonAttributeConstants.cs

@@ -44,19 +44,22 @@ source product.
 
 namespace iText.StyledXmlParser {
     public class CommonAttributeConstants {
-        /// <summary>The Constant ID.</summary>
-        public const String ID = "id";
-
         /// <summary>The Constant CLASS.</summary>
         public const String CLASS = "class";
 
-        /// <summary>The Constant LANG.</summary>
-        public const String LANG = "lang";
+        /// <summary>The Constant DISABLED.</summary>
+        public const String DISABLED = "disabled";
 
-        /// <summary>The Constant LANG.</summary>
-        public const String STYLESHEET = "stylesheet";
+        /// <summary>The Constant ID.</summary>
+        public const String ID = "id";
 
         /// <summary>The Constant LANG.</summary>
+        public const String LANG = "lang";
+
+        /// <summary>The Constant REL.</summary>
         public const String REL = "rel";
+
+        /// <summary>The Constant STYLESHEET.</summary>
+        public const String STYLESHEET = "stylesheet";
     }
 }

itext/itext.styledxmlparser/itext/styledxmlparser/css/selector/item/CssPseudoClassDisabledSelectorItem.cs

@@ -0,0 +1,24 @@
+using iText.StyledXmlParser.Css;
+using iText.StyledXmlParser.Node;
+
+namespace iText.StyledXmlParser.Css.Selector.Item {
+    internal class CssPseudoClassDisabledSelectorItem : CssPseudoClassSelectorItem {
+        private static readonly iText.StyledXmlParser.Css.Selector.Item.CssPseudoClassDisabledSelectorItem instance
+             = new iText.StyledXmlParser.Css.Selector.Item.CssPseudoClassDisabledSelectorItem();
+
+        public static iText.StyledXmlParser.Css.Selector.Item.CssPseudoClassDisabledSelectorItem GetInstance() {
+            return instance;
+        }
+
+        private CssPseudoClassDisabledSelectorItem()
+            : base(CommonCssConstants.DISABLED) {
+        }
+
+        public override bool Matches(INode node) {
+            if (!(node is IElementNode) || node is ICustomElementNode || node is IDocumentNode) {
+                return false;
+            }
+            return null != ((IElementNode)node).GetAttribute(CommonCssConstants.DISABLED);
+        }
+    }
+}

itext/itext.styledxmlparser/itext/styledxmlparser/css/selector/item/CssPseudoClassSelectorItem.cs

@@ -145,10 +145,13 @@ public static iText.StyledXmlParser.Css.Selector.Item.CssPseudoClassSelectorItem
                     return new CssPseudoClassSelectorItem.AlwaysNotApplySelectorItem(pseudoClass, arguments);
                 }
 
+                case CommonCssConstants.DISABLED: {
+                    return CssPseudoClassDisabledSelectorItem.GetInstance();
+                }
+
                 default: {
                     //Still unsupported, should be addressed in DEVSIX-1440
                     //case CommonCssConstants.CHECKED:
-                    //case CommonCssConstants.DISABLED:
                     //case CommonCssConstants.ENABLED:
                     //case CommonCssConstants.IN_RANGE:
                     //case CommonCssConstants.INVALID:

port-hash

@@ -1 +1 @@
-f3e0536399965437889335f4918663bd1e7c355c
+83282e4027ffeb08f11a616eb0d8879d8c301ae8