| // Copyright 2015 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 REMOTING_CLIENT_EMPTY_CURSOR_FILTER_H_ |
| #define REMOTING_CLIENT_EMPTY_CURSOR_FILTER_H_ |
| |
| #include "base/memory/raw_ptr.h" |
| #include "remoting/protocol/cursor_shape_stub.h" |
| |
| namespace remoting { |
| |
| // Returns an empty cursor. |
| protocol::CursorShapeInfo EmptyCursorShape(); |
| |
| // Returns true of the supplied cursor is empty, i.e. width and/or height <= 0. |
| bool IsCursorShapeEmpty(const protocol::CursorShapeInfo& cursor_shape); |
| |
| // Helper that checks whether a cursor has any visible pixels, and resizes |
| // it down to (0x0) if not. |
| // TODO(wez): Turn this into a general-purpose cropping filter that both |
| // client and host can use. |
| class EmptyCursorFilter : public protocol::CursorShapeStub { |
| public: |
| explicit EmptyCursorFilter(protocol::CursorShapeStub* cursor_stub); |
| |
| EmptyCursorFilter(const EmptyCursorFilter&) = delete; |
| EmptyCursorFilter& operator=(const EmptyCursorFilter&) = delete; |
| |
| ~EmptyCursorFilter() override; |
| |
| // protocol::CursorShapeStub interface. |
| void SetCursorShape(const protocol::CursorShapeInfo& cursor_shape) override; |
| |
| // Replaces the stub to which cursor shapes will be passed-on. |
| void set_cursor_stub(protocol::CursorShapeStub* cursor_stub) { |
| cursor_stub_ = cursor_stub; |
| } |
| |
| private: |
| raw_ptr<protocol::CursorShapeStub> cursor_stub_; |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_CLIENT_EMPTY_CURSOR_FILTER_H_ |