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 37 FrameLoaderStateMachine::FrameLoaderStateMachine() 38 : m_state(Uninitialized) 39 { 40 } 41 42 bool FrameLoaderStateMachine::committingFirstRealLoad() const 43 { 44 return m_state == DisplayingInitialEmptyDocument; 45 } 46 47 bool FrameLoaderStateMachine::committedFirstRealDocumentLoad() const 48 { 49 return m_state >= DisplayingInitialEmptyDocumentPostCommit; 50 } 51 52 bool FrameLoaderStateMachine::creatingInitialEmptyDocument() const 53 { 54 return m_state == CreatingInitialEmptyDocument; 55 } 56 57 bool FrameLoaderStateMachine::isDisplayingInitialEmptyDocument() const 58 { 59 return m_state == DisplayingInitialEmptyDocument || m_state == DisplayingInitialEmptyDocumentPostCommit; 60 } 61 62 bool FrameLoaderStateMachine::firstLayoutDone() const 63 { 64 return m_state == FirstLayoutDone; 65 } 66 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
