From 1cbdecfa9fc428ac2d8aca0fa91c9580b3d57353 Mon Sep 17 00:00:00 2001
From: The Android Open Source Project <initial-contribution@android.com>
Date: Wed, 17 Dec 2008 18:05:15 -0800
Subject: Code drop from //branches/cupcake/...@124589

---
 WebCore/editing/IndentOutdentCommand.cpp | 37 +++++++++++++++++++++-----------
 1 file changed, 25 insertions(+), 12 deletions(-)

(limited to 'WebCore/editing/IndentOutdentCommand.cpp')

diff --git a/WebCore/editing/IndentOutdentCommand.cpp b/WebCore/editing/IndentOutdentCommand.cpp
index 0d66467..385f1b7 100644
--- a/WebCore/editing/IndentOutdentCommand.cpp
+++ b/WebCore/editing/IndentOutdentCommand.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
+ * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -106,8 +106,9 @@ Node* IndentOutdentCommand::prepareBlockquoteLevelForInsertion(VisiblePosition&
 
 void IndentOutdentCommand::indentRegion()
 {
-    VisiblePosition startOfSelection = endingSelection().visibleStart();
-    VisiblePosition endOfSelection = endingSelection().visibleEnd();
+    Selection selection = selectionForParagraphIteration(endingSelection());
+    VisiblePosition startOfSelection = selection.visibleStart();
+    VisiblePosition endOfSelection = selection.visibleEnd();
     int startIndex = indexForVisiblePosition(startOfSelection);
     int endIndex = indexForVisiblePosition(endOfSelection);
 
@@ -162,14 +163,25 @@ void IndentOutdentCommand::indentRegion()
             // this by splitting all parents of the current paragraph up to that point.
             RefPtr<Node> blockquote = createIndentBlockquoteElement(document());
             Position start = startOfParagraph(endOfCurrentParagraph).deepEquivalent();
-
-            // FIXME: This will break table structure.
-            Node* startOfNewBlock = splitTreeToNode(start.node(), editableRootForPosition(start));
-            insertNodeBefore(blockquote.get(), startOfNewBlock);
+            
+            Node* enclosingCell = enclosingNodeOfType(start, &isTableCell);
+            Node* nodeToSplitTo = enclosingCell ? enclosingCell : editableRootForPosition(start);
+            RefPtr<Node> startOfNewBlock = splitTreeToNode(start.node(), nodeToSplitTo);
+            insertNodeBefore(blockquote.get(), startOfNewBlock.get());
             newBlockquote = blockquote.get();
             insertionPoint = prepareBlockquoteLevelForInsertion(endOfCurrentParagraph, &newBlockquote);
+            // Don't put the next paragraph in the blockquote we just created for this paragraph unless 
+            // the next paragraph is in the same cell.
+            if (enclosingCell && enclosingCell != enclosingNodeOfType(endOfNextParagraph.deepEquivalent(), &isTableCell))
+                newBlockquote = 0;
         }
         moveParagraph(startOfParagraph(endOfCurrentParagraph), endOfCurrentParagraph, VisiblePosition(Position(insertionPoint, 0)), true);
+        // moveParagraph should not destroy content that contains endOfNextParagraph, but if it does, return here
+        // to avoid a crash.
+        if (endOfNextParagraph.isNotNull() && !endOfNextParagraph.deepEquivalent().node()->inDocument()) {
+            ASSERT_NOT_REACHED();
+            return;
+        }
         endOfCurrentParagraph = endOfNextParagraph;
     }
     
@@ -190,10 +202,11 @@ void IndentOutdentCommand::outdentParagraph()
 
     // Use InsertListCommand to remove the selection from the list
     if (enclosingNode->hasTagName(olTag)) {
-        applyCommandToComposite(new InsertListCommand(document(), InsertListCommand::OrderedList, ""));
+        applyCommandToComposite(InsertListCommand::create(document(), InsertListCommand::OrderedList, ""));
         return;        
-    } else if (enclosingNode->hasTagName(ulTag)) {
-        applyCommandToComposite(new InsertListCommand(document(), InsertListCommand::UnorderedList, ""));
+    }
+    if (enclosingNode->hasTagName(ulTag)) {
+        applyCommandToComposite(InsertListCommand::create(document(), InsertListCommand::UnorderedList, ""));
         return;
     }
     
@@ -215,11 +228,11 @@ void IndentOutdentCommand::outdentParagraph()
         return;
     }
     Node* enclosingBlockFlow = enclosingBlockFlowElement(visibleStartOfParagraph);
-    Node* splitBlockquoteNode = enclosingNode;
+    RefPtr<Node> splitBlockquoteNode = enclosingNode;
     if (enclosingBlockFlow != enclosingNode)
         splitBlockquoteNode = splitTreeToNode(enclosingBlockFlowElement(visibleStartOfParagraph), enclosingNode, true);
     RefPtr<Node> placeholder = createBreakElement(document());
-    insertNodeBefore(placeholder.get(), splitBlockquoteNode);
+    insertNodeBefore(placeholder.get(), splitBlockquoteNode.get());
     moveParagraph(startOfParagraph(visibleStartOfParagraph), endOfParagraph(visibleEndOfParagraph), VisiblePosition(Position(placeholder.get(), 0)), true);
 }
 
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