From 78bfb5cb1cc72164e73cf7919501fa22ba05445d Mon Sep 17 00:00:00 2001
From: Henri Sara <hesara@vaadin.com>
Date: Mon, 26 Nov 2012 12:36:46 +0200
Subject: [PATCH] Keep block order when unnesting (#10309)

Change-Id: I5a7e6b74a55176799e85c943a128d9aab0db0876
---
 .../com/vaadin/sass/internal/ScssStylesheet.java    |  7 ++++++-
 .../sass/internal/visitor/BlockNodeHandler.java     | 13 +++++++------
 theme-compiler/tests/resources/css/nesting.css      |  8 ++++++++
 theme-compiler/tests/resources/scss/nesting.scss    | 12 ++++++++++++
 .../src/com/vaadin/sass/testcases/scss/Nesting.java |  4 +++-
 5 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java b/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java
index af061d8e95..2a5d617a6b 100644
--- a/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java
+++ b/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java
@@ -235,9 +235,14 @@ public class ScssStylesheet extends Node {
         variables.clear();
         variables.putAll(variableScope);
 
+        // clean up insert point so that processing of the next block will
+        // insert after that block
+        lastNodeAdded.remove(originalParent);
+
         // has the node been removed from its parent?
         if (originalParent != null) {
-            return !originalParent.getChildren().contains(node);
+            boolean removed = !originalParent.getChildren().contains(node);
+            return removed;
         } else {
             return false;
         }
diff --git a/theme-compiler/src/com/vaadin/sass/internal/visitor/BlockNodeHandler.java b/theme-compiler/src/com/vaadin/sass/internal/visitor/BlockNodeHandler.java
index cb736ba558..fc34e32f7a 100644
--- a/theme-compiler/src/com/vaadin/sass/internal/visitor/BlockNodeHandler.java
+++ b/theme-compiler/src/com/vaadin/sass/internal/visitor/BlockNodeHandler.java
@@ -98,14 +98,15 @@ public class BlockNodeHandler {
         }
         node.setSelectorList(newList);
         Node oldParent = node.getParentNode();
+
         HashMap<Node, Node> lastNodeAdded = ScssStylesheet.getLastNodeAdded();
-        if (lastNodeAdded.get(oldParent) != null) {
-            oldParent.getParentNode().appendChild(node,
-                    lastNodeAdded.get(oldParent));
-        } else {
-            oldParent.getParentNode().appendChild(node, oldParent);
+        Node lastAdded = lastNodeAdded.get(oldParent.getParentNode());
+        if (lastAdded == null) {
+            lastAdded = oldParent;
         }
 
-        lastNodeAdded.put(oldParent, node);
+        oldParent.getParentNode().appendChild(node, lastAdded);
+
+        lastNodeAdded.put(oldParent.getParentNode(), node);
     }
 }
diff --git a/theme-compiler/tests/resources/css/nesting.css b/theme-compiler/tests/resources/css/nesting.css
index b3861a0131..e1cdf3a579 100644
--- a/theme-compiler/tests/resources/css/nesting.css
+++ b/theme-compiler/tests/resources/css/nesting.css
@@ -44,4 +44,12 @@
 
 .main .second.third .fourth {
 	color: black;
+}
+
+.root .first-block .nested {
+	order: first;
+}
+
+.root .last-block {
+	order: last;
 }
\ No newline at end of file
diff --git a/theme-compiler/tests/resources/scss/nesting.scss b/theme-compiler/tests/resources/scss/nesting.scss
index 0336c9e86d..1fefe0dde0 100644
--- a/theme-compiler/tests/resources/scss/nesting.scss
+++ b/theme-compiler/tests/resources/scss/nesting.scss
@@ -37,4 +37,16 @@
       color: black;
     }
   }
+}
+
+.root {
+	.first-block {
+		.nested {
+			order: first;
+		}
+	}
+	
+	.last-block {
+		order: last;
+	}
 }
\ No newline at end of file
diff --git a/theme-compiler/tests/src/com/vaadin/sass/testcases/scss/Nesting.java b/theme-compiler/tests/src/com/vaadin/sass/testcases/scss/Nesting.java
index 109182f608..bdc6e63391 100644
--- a/theme-compiler/tests/src/com/vaadin/sass/testcases/scss/Nesting.java
+++ b/theme-compiler/tests/src/com/vaadin/sass/testcases/scss/Nesting.java
@@ -42,7 +42,7 @@ public class Nesting extends AbstractTestBase {
         parser.setDocumentHandler(handler);
         parser.parseStyleSheet(getClass().getResource(scss).getPath());
         ScssStylesheet root = handler.getStyleSheet();
-        Assert.assertEquals(5, root.getChildren().size());
+        Assert.assertEquals(6, root.getChildren().size());
 
         BlockNode blockNode0 = (BlockNode) root.getChildren().get(0);
         Assert.assertEquals(2, blockNode0.getChildren().size());
@@ -78,6 +78,8 @@ public class Nesting extends AbstractTestBase {
         BlockNode nestednestedBlockInBlock4 = (BlockNode) nestedBlockInBlock3
                 .getChildren().get(1);
         Assert.assertEquals(1, nestednestedBlockInBlock4.getChildren().size());
+
+        // the parsing of the last block is not checked in detail
     }
 
     @Test
-- 
2.39.5