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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/basic/BasicContainerLayer.h
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Add m-esr52 at 52.6.0
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_BASICCONTAINERLAYER_H
+#define GFX_BASICCONTAINERLAYER_H
+
+#include "BasicImplData.h" // for BasicImplData
+#include "BasicLayers.h" // for BasicLayerManager
+#include "Layers.h" // for Layer, ContainerLayer
+#include "nsDebug.h" // for NS_ASSERTION
+#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR
+#include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE
+#include "mozilla/gfx/Rect.h"
+
+namespace mozilla {
+namespace layers {
+
+class BasicContainerLayer : public ContainerLayer, public BasicImplData {
+public:
+ explicit BasicContainerLayer(BasicLayerManager* aManager) :
+ ContainerLayer(aManager, static_cast<BasicImplData*>(this))
+ {
+ MOZ_COUNT_CTOR(BasicContainerLayer);
+ mSupportsComponentAlphaChildren = true;
+ }
+protected:
+ virtual ~BasicContainerLayer();
+
+public:
+ virtual void SetVisibleRegion(const LayerIntRegion& aRegion) override
+ {
+ NS_ASSERTION(BasicManager()->InConstruction(),
+ "Can only set properties in construction phase");
+ ContainerLayer::SetVisibleRegion(aRegion);
+ }
+ virtual bool InsertAfter(Layer* aChild, Layer* aAfter) override
+ {
+ if (!BasicManager()->InConstruction()) {
+ NS_ERROR("Can only set properties in construction phase");
+ return false;
+ }
+ return ContainerLayer::InsertAfter(aChild, aAfter);
+ }
+
+ virtual bool RemoveChild(Layer* aChild) override
+ {
+ if (!BasicManager()->InConstruction()) {
+ NS_ERROR("Can only set properties in construction phase");
+ return false;
+ }
+ return ContainerLayer::RemoveChild(aChild);
+ }
+
+ virtual bool RepositionChild(Layer* aChild, Layer* aAfter) override
+ {
+ if (!BasicManager()->InConstruction()) {
+ NS_ERROR("Can only set properties in construction phase");
+ return false;
+ }
+ return ContainerLayer::RepositionChild(aChild, aAfter);
+ }
+
+ virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) override;
+
+ /**
+ * Returns true when:
+ * a) no (non-hidden) childrens' visible areas overlap in
+ * (aInRect intersected with this layer's visible region).
+ * b) the (non-hidden) childrens' visible areas cover
+ * (aInRect intersected with this layer's visible region).
+ * c) this layer and all (non-hidden) children have transforms that are translations
+ * by integers.
+ * aInRect is in the root coordinate system.
+ * Child layers with opacity do not contribute to the covered area in check b).
+ * This method can be conservative; it's OK to return false under any
+ * circumstances.
+ */
+ bool ChildrenPartitionVisibleRegion(const gfx::IntRect& aInRect);
+
+ void ForceIntermediateSurface() { mUseIntermediateSurface = true; }
+
+ void SetSupportsComponentAlphaChildren(bool aSupports) { mSupportsComponentAlphaChildren = aSupports; }
+
+ virtual void Validate(LayerManager::DrawPaintedLayerCallback aCallback,
+ void* aCallbackData,
+ ReadbackProcessor* aReadback) override;
+
+ /**
+ * We don't really have a hard restriction for max layer size, but we pick
+ * 4096 to avoid excessive memory usage.
+ */
+ virtual int32_t GetMaxLayerSize() override { return 4096; }
+
+protected:
+ BasicLayerManager* BasicManager()
+ {
+ return static_cast<BasicLayerManager*>(mManager);
+ }
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif