1/*
2 * Copyright (C) 2006, 2007 Apple, Inc.  All rights reserved.
3 * Copyright (C) 2012 Google, Inc.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "core/editing/Editor.h"
29
30#include "core/events/KeyboardEvent.h"
31#include "core/frame/LocalFrame.h"
32#include "core/page/EditorClient.h"
33#include "platform/PlatformKeyboardEvent.h"
34
35namespace blink {
36
37bool Editor::handleEditingKeyboardEvent(KeyboardEvent* evt)
38{
39    const PlatformKeyboardEvent* keyEvent = evt->keyEvent();
40    // do not treat this as text input if it's a system key event
41    if (!keyEvent || keyEvent->isSystemKey())
42        return false;
43
44    String commandName = behavior().interpretKeyEvent(*evt);
45    Command command = this->command(commandName);
46
47    if (keyEvent->type() == PlatformEvent::RawKeyDown) {
48        // WebKit doesn't have enough information about mode to decide how
49        // commands that just insert text if executed via Editor should be treated,
50        // so we leave it upon WebCore to either handle them immediately
51        // (e.g. Tab that changes focus) or let a keypress event be generated
52        // (e.g. Tab that inserts a Tab character, or Enter).
53        if (command.isTextInsertion() || commandName.isEmpty())
54            return false;
55        return command.execute(evt);
56    }
57
58    if (command.execute(evt))
59        return true;
60
61    if (!behavior().shouldInsertCharacter(*evt) || !canEdit())
62        return false;
63
64    return insertText(evt->keyEvent()->text(), evt);
65}
66
67void Editor::handleKeyboardEvent(KeyboardEvent* evt)
68{
69    // Give the embedder a chance to handle the keyboard event.
70    if (client().handleKeyboardEvent() || handleEditingKeyboardEvent(evt))
71        evt->setDefaultHandled();
72}
73
74} // namespace blink
75