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