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- // 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_
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