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Unified Diff: third_party/WebKit/Source/core/paint/SVGModelObjectPaintInvalidator.cpp

Issue 2208463003: First step of PaintInvalidator implementation (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: - Created 4 years, 4 months ago
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Index: third_party/WebKit/Source/core/paint/SVGModelObjectPaintInvalidator.cpp
diff --git a/third_party/WebKit/Source/core/paint/SVGModelObjectPaintInvalidator.cpp b/third_party/WebKit/Source/core/paint/SVGModelObjectPaintInvalidator.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..567e24bfe2ad6ce8cf921d4a351d4ce7ad0edff5
--- /dev/null
+++ b/third_party/WebKit/Source/core/paint/SVGModelObjectPaintInvalidator.cpp
@@ -0,0 +1,25 @@
+// 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.
+
+#include "core/paint/SVGModelObjectPaintInvalidator.h"
+
+#include "core/layout/svg/LayoutSVGModelObject.h"
+#include "core/paint/ObjectPaintInvalidator.h"
+
+namespace blink {
+
+PaintInvalidationReason SVGModelObjectPaintInvalidator::invalidatePaintIfNeeded()
+{
+ PaintInvalidationReason reason = ObjectPaintInvalidator(m_object, m_context).computePaintInvalidationReason();
+
+ // Disable incremental invalidation for SVG objects to prevent under-
+ // invalidation. Unlike boxes, it is non-trivial (and rare) for SVG objects
+ // to be able to be incrementally invalidated (e.g., on height changes).
+ if (reason == PaintInvalidationIncremental)
+ reason = PaintInvalidationFull;
+
+ return ObjectPaintInvalidator(m_object, m_context).invalidatePaintIfNeededWithComputedReason(reason);
+}
+
+} // namespace blink

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