1 files changed, 78 insertions, 0 deletions
diff --git a/Source/WebCore/editing/DeleteFromTextNodeCommand.cpp b/Source/WebCore/editing/DeleteFromTextNodeCommand.cpp
new file mode 100644
index 0000000..fe572e1
--- /dev/null
+++ b/Source/WebCore/editing/DeleteFromTextNodeCommand.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2005, 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
+ * 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 "DeleteFromTextNodeCommand.h"
+
+#include "AXObjectCache.h"
+#include "Text.h"
+
+namespace WebCore {
+
+DeleteFromTextNodeCommand::DeleteFromTextNodeCommand(PassRefPtr<Text> node, unsigned offset, unsigned count)
+    : SimpleEditCommand(node->document())
+    , m_node(node)
+    , m_offset(offset)
+    , m_count(count)
+{
+    ASSERT(m_node);
+    ASSERT(m_offset <= m_node->length());
+    ASSERT(m_offset + m_count <= m_node->length());
+}
+
+void DeleteFromTextNodeCommand::doApply()
+{
+    ASSERT(m_node);
+
+    if (!m_node->isContentEditable())
+        return;
+
+    ExceptionCode ec = 0;
+    m_text = m_node->substringData(m_offset, m_count, ec);
+    if (ec)
+        return;
+    
+    // Need to notify this before actually deleting the text
+    if (AXObjectCache::accessibilityEnabled())
+        document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextDeleted, m_offset, m_count);
+
+    m_node->deleteData(m_offset, m_count, ec);
+}
+
+void DeleteFromTextNodeCommand::doUnapply()
+{
+    ASSERT(m_node);
+
+    if (!m_node->isContentEditable())
+        return;
+        
+    ExceptionCode ec;
+    m_node->insertData(m_offset, m_text, ec);
+
+    if (AXObjectCache::accessibilityEnabled())
+        document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextInserted, m_offset, m_count);
+}
+
+} // namespace WebCore