| // Copyright 2016 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. |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_BOX_PAINT_INVALIDATOR_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_BOX_PAINT_INVALIDATOR_H_ |
| |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/platform/graphics/paint_invalidation_reason.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" |
| |
| namespace blink { |
| |
| class LayoutBox; |
| struct PaintInvalidatorContext; |
| struct PhysicalRect; |
| |
| class CORE_EXPORT BoxPaintInvalidator { |
| STACK_ALLOCATED(); |
| |
| public: |
| BoxPaintInvalidator(const LayoutBox& box, |
| const PaintInvalidatorContext& context) |
| : box_(box), context_(context) {} |
| |
| static void BoxWillBeDestroyed(const LayoutBox&); |
| |
| void InvalidatePaint(); |
| |
| private: |
| friend class BoxPaintInvalidatorTest; |
| |
| bool HasEffectiveBackground(); |
| bool BackgroundGeometryDependsOnLayoutOverflowRect(); |
| bool BackgroundPaintsOntoScrollingContentsLayer(); |
| bool BackgroundPaintsOntoMainGraphicsLayer(); |
| bool ShouldFullyInvalidateBackgroundOnLayoutOverflowChange( |
| const PhysicalRect& old_layout_overflow, |
| const PhysicalRect& new_layout_overflow); |
| |
| enum BackgroundInvalidationType { kNone = 0, kIncremental, kFull }; |
| BackgroundInvalidationType ComputeViewBackgroundInvalidation(); |
| BackgroundInvalidationType ComputeBackgroundInvalidation( |
| bool& should_invalidate_all_layers); |
| void InvalidateBackground(); |
| |
| PaintInvalidationReason ComputePaintInvalidationReason(); |
| |
| bool NeedsToSavePreviousContentBoxRect(); |
| bool NeedsToSavePreviousOverflowData(); |
| void SavePreviousBoxGeometriesIfNeeded(); |
| |
| const LayoutBox& box_; |
| const PaintInvalidatorContext& context_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_BOX_PAINT_INVALIDATOR_H_ |