src/third_party/WebKit/Source/core/frame/DeprecatedScheduleStyleRecalcDuringCompositingUpdate.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "core/frame/DeprecatedScheduleStyleRecalcDuringCompositingUpdate.h"
   7
   8 #include "wtf/Assertions.h"
   9
  10 namespace WebCore {
  11
  12 DeprecatedScheduleStyleRecalcDuringCompositingUpdate::DeprecatedScheduleStyleRecalcDuringCompositingUpdate(DocumentLifecycle& lifecycle)
  13     : m_lifecycle(lifecycle)
  14     , m_deprecatedTransition(lifecycle.state(), DocumentLifecycle::StyleRecalcPending)
  15     , m_originalState(lifecycle.state())
  16 {
  17 }
  18
  19 DeprecatedScheduleStyleRecalcDuringCompositingUpdate::~DeprecatedScheduleStyleRecalcDuringCompositingUpdate()
  20 {
  21     if (m_originalState != DocumentLifecycle::InStyleRecalc
  22         && m_originalState != DocumentLifecycle::AfterPerformLayout
  23         && m_originalState != DocumentLifecycle::InCompositingUpdate)
  24         return;
  25     if (m_lifecycle.state() != m_originalState) {
  26         ASSERT(m_lifecycle.state() == DocumentLifecycle::StyleRecalcPending);
  27         m_lifecycle.advanceTo(m_originalState);
  28     }
  29 }
  30
  31 }