1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_VIEWS_MASKED_VIEW_TARGETER_H_ 6 #define UI_VIEWS_MASKED_VIEW_TARGETER_H_ 7 8 #include "ui/views/view_targeter.h" 9 #include "ui/views/views_export.h" 10 11 namespace gfx { 12 class Path; 13 } 14 15 namespace views { 16 17 // Derived classes of MaskedViewTargeter are used to define custom-shaped 18 // hit test regions for a View used in event targeting. 19 // TODO(tdanderson|sadrul): Some refactoring opportunities may be possible 20 // between this class and MaskedWindowTargeter. 21 class VIEWS_EXPORT MaskedViewTargeter : public ViewTargeter { 22 public: 23 explicit MaskedViewTargeter(View* masked_view); 24 virtual ~MaskedViewTargeter(); 25 26 // Sets the hit-test mask for |view| in |mask| (in |view|'s local 27 // coordinate system). Returns whether a valid mask has been set in |mask|. 28 virtual bool GetHitTestMask(const View* view, gfx::Path* mask) const = 0; 29 30 protected: masked_view()31 const View* masked_view() const { return masked_view_; } 32 33 // ui::EventTargeter: 34 virtual bool EventLocationInsideBounds( 35 ui::EventTarget* target, 36 const ui::LocatedEvent& event) const OVERRIDE; 37 38 private: 39 View* masked_view_; 40 41 DISALLOW_COPY_AND_ASSIGN(MaskedViewTargeter); 42 }; 43 44 } // namespace views 45 46 #endif // UI_VIEWS_MASKED_VIEW_TARGETER_H_ 47