diff -r 000000000000 -r 4f2f89ce4247 WebCore/editing/RemoveFormatCommand.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/editing/RemoveFormatCommand.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2007 Apple Computer, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "RemoveFormatCommand.h"
+
+#include "CSSComputedStyleDeclaration.h"
+#include "CSSMutableStyleDeclaration.h"
+#include "Editor.h"
+#include "Frame.h"
+#include "HTMLNames.h"
+#include "VisibleSelection.h"
+#include "SelectionController.h"
+#include "TextIterator.h"
+#include "TypingCommand.h"
+#include "ApplyStyleCommand.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+RemoveFormatCommand::RemoveFormatCommand(Document* document)
+    : CompositeEditCommand(document)
+{
+}
+
+void RemoveFormatCommand::doApply()
+{
+    Frame* frame = document()->frame();
+    
+    // Make a plain text string from the selection to remove formatting like tables and lists.
+    String string = plainText(frame->selection()->selection().toNormalizedRange().get());
+
+    // Get the default style for this editable root, it's the style that we'll give the
+    // content that we're operating on.
+    Node* root = frame->selection()->rootEditableElement();
+    RefPtr<CSSMutableStyleDeclaration> defaultStyle = ApplyStyleCommand::editingStyleAtPosition(Position(root, 0));
+
+    // Delete the selected content.
+    // FIXME: We should be able to leave this to insertText, but its delete operation
+    // doesn't preserve the style we're about to set.
+    deleteSelection();
+    
+    // Delete doesn't remove fully selected lists.
+    while (breakOutOfEmptyListItem())
+        ;
+    
+    // If the selection was all formatting (like an empty list) the format-less text will 
+    // be empty. Early return since we don't need to do any of the work that follows and
+    // to avoid the ASSERT that fires if input(...) is called with an empty String.
+    if (string.isEmpty())
+        return;
+    
+    // Insert the content with the default style.
+    // See <rdar://problem/5794382> RemoveFormat doesn't always reset text alignment
+    frame->setTypingStyle(defaultStyle.get());
+    
+    inputText(string, true);
+}
+
+}