--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/themeinstaller/source/src/com/nokia/tools/themeinstaller/cssparser/CSSSelectorParser.java	Wed Sep 01 12:32:13 2010 +0100
@@ -0,0 +1,142 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Parses SAC selector to find out its selector type
+ *
+*/
+
+
+package com.nokia.tools.themeinstaller.cssparser;
+
+import org.w3c.css.sac.CSSException;
+import org.w3c.css.sac.CombinatorCondition;
+import org.w3c.css.sac.Condition;
+import org.w3c.css.sac.ConditionalSelector;
+import org.w3c.css.sac.DescendantSelector;
+import org.w3c.css.sac.Selector;
+
+/**
+ * Parses SAC Selector in order to find out if selector has pseudo condition.
+
+ * For example selector "element.class:pseudo" is recognized as Conditional
+ * Selector and the Selector's condition is ".class:pseudo" is recognized as
+ * SAC_AND_CONDITION.
+ *
+ * After SAC_AND_CONDITION is parsed to two different conditions : ".class" and
+ * ":pseudo", it is possible to tell that the original selector is Pseudo
+ * Selector
+ *
+ */
+public class CSSSelectorParser
+    {
+
+    /**
+     * Checks if Selector is pseudo selector.
+     *
+     * @param aSelector The selector
+     *
+     * @return true, if is pseudo selector
+     */
+    public static boolean isPseudo( Selector aSelector )
+        {
+        switch ( aSelector.getSelectorType() )
+            {
+            case Selector.SAC_ELEMENT_NODE_SELECTOR:
+                {
+                return false;
+                }
+            case Selector.SAC_CONDITIONAL_SELECTOR:
+                {
+                ConditionalSelector cSelector = ( ConditionalSelector ) aSelector;
+                return isPseudoCondition( cSelector.getCondition() );
+                }
+            case Selector.SAC_CHILD_SELECTOR:
+                {
+                DescendantSelector dSelector = ( DescendantSelector ) aSelector;
+                return isPseudo( dSelector.getSimpleSelector() );
+                }
+            case Selector.SAC_DESCENDANT_SELECTOR:
+                {
+                DescendantSelector dSelector = ( DescendantSelector ) aSelector;
+                return isPseudo( dSelector.getSimpleSelector() );
+                }
+            case Selector.SAC_ANY_NODE_SELECTOR:
+            case Selector.SAC_DIRECT_ADJACENT_SELECTOR:
+            case Selector.SAC_CDATA_SECTION_NODE_SELECTOR:
+            case Selector.SAC_COMMENT_NODE_SELECTOR:
+            case Selector.SAC_NEGATIVE_SELECTOR:
+            case Selector.SAC_PROCESSING_INSTRUCTION_NODE_SELECTOR:
+            case Selector.SAC_PSEUDO_ELEMENT_SELECTOR:
+            case Selector.SAC_ROOT_NODE_SELECTOR:
+            case Selector.SAC_TEXT_NODE_SELECTOR:
+                {
+                throw new CSSException( "Selector : "
+                        + aSelector.getSelectorType() + " not supported" );
+                }
+            default:
+                throw new CSSException( "Unknown selector : "
+                        + aSelector.getSelectorType() );
+            }
+        }
+
+    /**
+     * Checks if SAC Condition is pseudo condition.
+     *
+     * @param aCondition The condition
+     *
+     * @return true, if is pseudo condition
+     */
+    private static boolean isPseudoCondition( Condition aCondition )
+        {
+        switch ( aCondition.getConditionType() )
+            {
+            case Condition.SAC_ID_CONDITION:
+                {
+                return false;
+                }
+            case Condition.SAC_CLASS_CONDITION:
+                {
+                return false;
+                }
+            case Condition.SAC_AND_CONDITION:
+                {
+                CombinatorCondition combCondition = ( CombinatorCondition ) aCondition;
+                return isPseudoCondition( combCondition.getFirstCondition() )
+                        || isPseudoCondition( combCondition
+                                .getSecondCondition() );
+                }
+            case Condition.SAC_PSEUDO_CLASS_CONDITION:
+                {
+                return true;
+                }
+            case Condition.SAC_ATTRIBUTE_CONDITION:
+            case Condition.SAC_ONE_OF_ATTRIBUTE_CONDITION:
+            case Condition.SAC_BEGIN_HYPHEN_ATTRIBUTE_CONDITION:
+            case Condition.SAC_OR_CONDITION:
+            case Condition.SAC_NEGATIVE_CONDITION:
+            case Condition.SAC_POSITIONAL_CONDITION:
+            case Condition.SAC_LANG_CONDITION:
+            case Condition.SAC_ONLY_CHILD_CONDITION:
+            case Condition.SAC_ONLY_TYPE_CONDITION:
+            case Condition.SAC_CONTENT_CONDITION:
+                {
+                throw new CSSException( "condition : "
+                        + aCondition.getConditionType() + " not supported" );
+
+                }
+            default:
+                throw new CSSException( "Unknown condition : "
+                        + aCondition.getConditionType() );
+            }
+        }
+    }