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Unified Diff: ui/compositor/layer.h

Issue 2383263002: Generalize layer mirroring for phantom windows (Closed)
Patch Set: Rebase Created 4 years, 2 months ago
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Index: ui/compositor/layer.h
diff --git a/ui/compositor/layer.h b/ui/compositor/layer.h
index 7c7e4e32562c1899c69a438587c10cc6aaeafea6..e882bbb5f42a7f43a6bcf26bb0e89780a5c14576 100644
--- a/ui/compositor/layer.h
+++ b/ui/compositor/layer.h
@@ -76,6 +76,16 @@ class COMPOSITOR_EXPORT Layer
explicit Layer(LayerType type);
~Layer() override;
+ // Note that only solid color and surface content is copied.
+ std::unique_ptr<Layer> Clone() const;
+
+ // Returns a new layer that mirrors this layer and is optionally synchronized
+ // with the bounds thereof. Note that children are not mirrored, and that the
+ // content is only mirrored if painted by a delegate or backed by a surface.
+ std::unique_ptr<Layer> Mirror();
+
+ void set_sync_bounds(bool sync_bounds) { sync_bounds_ = sync_bounds; }
+
// Retrieves the Layer's compositor. The Layer will walk up its parent chain
// to locate it. Returns NULL if the Layer is not attached to a compositor.
Compositor* GetCompositor() {
@@ -303,7 +313,7 @@ class COMPOSITOR_EXPORT Layer
// Sets the layer's fill color. May only be called for LAYER_SOLID_COLOR.
void SetColor(SkColor color);
- SkColor GetTargetColor();
+ SkColor GetTargetColor() const;
SkColor background_color() const;
// Updates the nine patch layer's image, aperture and border. May only be
@@ -383,6 +393,7 @@ class COMPOSITOR_EXPORT Layer
private:
friend class LayerOwner;
+ class LayerMirror;
void CollectAnimators(std::vector<scoped_refptr<LayerAnimator> >* animators);
@@ -433,6 +444,8 @@ class COMPOSITOR_EXPORT Layer
void SetCompositorForAnimatorsInTree(Compositor* compositor);
void ResetCompositorForAnimatorsInTree(Compositor* compositor);
+ void OnMirrorDestroyed(LayerMirror* mirror);
+
const LayerType type_;
Compositor* compositor_;
@@ -442,6 +455,11 @@ class COMPOSITOR_EXPORT Layer
// This layer's children, in bottom-to-top stacking order.
std::vector<Layer*> children_;
+ std::vector<std::unique_ptr<LayerMirror>> mirrors_;
+
+ // If true, changes to the bounds of this layer are propagated to mirrors.
+ bool sync_bounds_ = false;
+
gfx::Rect bounds_;
gfx::Vector2dF subpixel_position_offset_;
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