1/*
2 * Copyright (C) 2011 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 "core/html/HTMLSelectElement.h"
28
29#if OS(WIN)
30
31#include "core/dom/Element.h"
32#include "core/events/KeyboardEvent.h"
33#include "core/rendering/RenderMenuList.h"
34
35namespace WebCore {
36
37bool HTMLSelectElement::platformHandleKeydownEvent(KeyboardEvent* event)
38{
39    // Allow (Shift) F4 and (Ctrl/Shift) Alt/AltGr + Up/Down arrow to pop the menu, matching Firefox.
40    bool eventShowsMenu = (!event->altKey() && !event->ctrlKey() && event->keyIdentifier() == "F4")
41        || ((event->altGraphKey() || event->altKey()) && (event->keyIdentifier() == "Down" || event->keyIdentifier() == "Up"));
42    if (!eventShowsMenu)
43        return false;
44
45    // Save the selection so it can be compared to the new selection when dispatching change events during setSelectedIndex,
46    // which gets called from RenderMenuList::valueChanged, which gets called after the user makes a selection from the menu.
47    saveLastSelection();
48    if (RenderMenuList* menuList = toRenderMenuList(renderer()))
49        menuList->showPopup();
50
51    int index = selectedIndex();
52    ASSERT(index >= 0);
53    ASSERT_WITH_SECURITY_IMPLICATION(index < static_cast<int>(listItems().size()));
54    setSelectedIndex(index);
55    event->setDefaultHandled();
56    return true;
57}
58
59}
60
61#endif
62