1/*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "UserTypingGestureIndicator.h"
28
29#include "Document.h"
30#include "Element.h"
31#include "Frame.h"
32#include <wtf/StdLibExtras.h>
33
34namespace WebCore {
35
36static bool s_processingUserTypingGesture;
37bool UserTypingGestureIndicator::processingUserTypingGesture()
38{
39    return s_processingUserTypingGesture;
40}
41
42static RefPtr<Node>& focusedNode()
43{
44    DEFINE_STATIC_LOCAL(RefPtr<Node>, node, ());
45    return node;
46}
47
48Node* UserTypingGestureIndicator::focusedElementAtGestureStart()
49{
50    return focusedNode().get();
51}
52
53UserTypingGestureIndicator::UserTypingGestureIndicator(Frame* frame)
54    : m_previousProcessingUserTypingGesture(s_processingUserTypingGesture)
55    , m_previousFocusedNode(focusedNode())
56{
57    s_processingUserTypingGesture = true;
58    focusedNode() = frame->document() ? frame->document()->focusedElement() : 0;
59}
60
61UserTypingGestureIndicator::~UserTypingGestureIndicator()
62{
63    s_processingUserTypingGesture = m_previousProcessingUserTypingGesture;
64    focusedNode() = m_previousFocusedNode;
65}
66
67} // namespace WebCore
68