Index: Source/core/frame/DeprecatedScheduleStyleRecalcDuringLayout.cpp |
diff --git a/Source/core/frame/DeprecatedScheduleStyleRecalcDuringLayout.cpp b/Source/core/frame/DeprecatedScheduleStyleRecalcDuringLayout.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..94367d821680aac14467d1f1de7bd75adab1289a |
--- /dev/null |
+++ b/Source/core/frame/DeprecatedScheduleStyleRecalcDuringLayout.cpp |
@@ -0,0 +1,29 @@ |
+// Copyright 2014 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "config.h" |
+#include "core/frame/DeprecatedScheduleStyleRecalcDuringLayout.h" |
+ |
+#include "wtf/Assertions.h" |
+ |
+namespace WebCore { |
+ |
+DeprecatedScheduleStyleRecalcDuringLayout::DeprecatedScheduleStyleRecalcDuringLayout(DocumentLifecycle& lifecycle) |
+ : m_lifecycle(lifecycle) |
+ , m_deprecatedTransition(DocumentLifecycle::InPerformLayout, DocumentLifecycle::StyleRecalcPending) |
+ , m_wasInPerformLayout(lifecycle.state() == DocumentLifecycle::InPerformLayout) |
+{ |
+} |
+ |
+DeprecatedScheduleStyleRecalcDuringLayout::~DeprecatedScheduleStyleRecalcDuringLayout() |
+{ |
+ // This block of code is intended to restore the state machine to the |
+ // proper state. The style recalc will still have been schedule, however. |
+ if (m_wasInPerformLayout && m_lifecycle.state() != DocumentLifecycle::InPerformLayout) { |
+ ASSERT(m_lifecycle.state() == DocumentLifecycle::StyleRecalcPending); |
+ m_lifecycle.advanceTo(DocumentLifecycle::InPerformLayout); |
+ } |
+} |
+ |
+} |