| // 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 "core/frame/DeprecatedScheduleStyleRecalcDuringLayout.h" |
| |
| #include "platform/wtf/Assertions.h" |
| |
| namespace blink { |
| |
| DeprecatedScheduleStyleRecalcDuringLayout:: |
| DeprecatedScheduleStyleRecalcDuringLayout(DocumentLifecycle& lifecycle) |
| : lifecycle_(lifecycle), |
| deprecated_transition_(DocumentLifecycle::kInPerformLayout, |
| DocumentLifecycle::kVisualUpdatePending), |
| was_in_perform_layout_(lifecycle.GetState() == |
| DocumentLifecycle::kInPerformLayout) {} |
| |
| 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 (was_in_perform_layout_ && |
| lifecycle_.GetState() != DocumentLifecycle::kInPerformLayout) { |
| DCHECK_EQ(lifecycle_.GetState(), DocumentLifecycle::kVisualUpdatePending); |
| lifecycle_.AdvanceTo(DocumentLifecycle::kInPerformLayout); |
| } |
| } |
| |
| } // namespace blink |
