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
34 namespace WebCore {
35
36
FrameLoaderStateMachine()37 FrameLoaderStateMachine::FrameLoaderStateMachine()
38 : m_state(Uninitialized)
39 {
40 }
41
committingFirstRealLoad() const42 bool FrameLoaderStateMachine::committingFirstRealLoad() const
43 {
44 return m_state == DisplayingInitialEmptyDocument;
45 }
46
committedFirstRealDocumentLoad() const47 bool FrameLoaderStateMachine::committedFirstRealDocumentLoad() const
48 {
49 return m_state >= DisplayingInitialEmptyDocumentPostCommit;
50 }
51
creatingInitialEmptyDocument() const52 bool FrameLoaderStateMachine::creatingInitialEmptyDocument() const
53 {
54 return m_state == CreatingInitialEmptyDocument;
55 }
56
isDisplayingInitialEmptyDocument() const57 bool FrameLoaderStateMachine::isDisplayingInitialEmptyDocument() const
58 {
59 return m_state == DisplayingInitialEmptyDocument || m_state == DisplayingInitialEmptyDocumentPostCommit;
60 }
61
firstLayoutDone() const62 bool FrameLoaderStateMachine::firstLayoutDone() const
63 {
64 return m_state == FirstLayoutDone;
65 }
66
advanceTo(State state)67 void 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