1/*
2 * Copyright (C) 2010 Google 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 *
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 * 3. Neither the name of Google, Inc. nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "FrameLoaderStateMachine.h"
31
32#include <wtf/Assertions.h>
33
34namespace WebCore {
35
36
37FrameLoaderStateMachine::FrameLoaderStateMachine()
38 : m_state(CreatingInitialEmptyDocument)
39{
40}
41
42bool FrameLoaderStateMachine::committingFirstRealLoad() const
43{
44 return m_state == DisplayingInitialEmptyDocument;
45}
46
47bool FrameLoaderStateMachine::committedFirstRealDocumentLoad() const
48{
49 return m_state >= DisplayingInitialEmptyDocumentPostCommit;
50}
51
52bool FrameLoaderStateMachine::creatingInitialEmptyDocument() const
53{
54 return m_state == CreatingInitialEmptyDocument;
55}
56
57bool FrameLoaderStateMachine::isDisplayingInitialEmptyDocument() const
58{
59 return m_state == DisplayingInitialEmptyDocument || m_state == DisplayingInitialEmptyDocumentPostCommit;
60}
61
62bool FrameLoaderStateMachine::firstLayoutDone() const
63{
64 return m_state == FirstLayoutDone;
65}
66
67void FrameLoaderStateMachine::advanceTo(State state)
68{
69 ASSERT(State(m_state + 1) == state || (firstLayoutDone() && state == CommittedFirstRealLoad));
70 m_state = state;
71}
72
73} // namespace WebCore
74