Input Injection API on Ozone

ui/ozone/public/system_input_injector.h

+// Copyright 2014 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 UI_OZONE_PUBLIC_SYSTEM_INPUT_INJECTOR_H_
+#define UI_OZONE_PUBLIC_SYSTEM_INPUT_INJECTOR_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "ui/events/event.h"
+#include "ui/events/keycodes/dom4/keycode_converter.h"
+#include "ui/gfx/geometry/point_f.h"
+#include "ui/ozone/ozone_export.h"
+
+namespace gfx {
+class PointF;
+}  // namespace gfx
+
+namespace ui {
+class Event;
+
+// Interface for converting input into ui::Events and injecting them to the
+// Ozone platform.
+class OZONE_EXPORT SystemInputInjector {
+ public:
+  SystemInputInjector() {};
+  virtual ~SystemInputInjector() {};
+
+  // Moves the cursor on the screen and generates the corresponding MouseMove or
+  // MouseDragged event.  |location| is in physical screen co-ordinates,
+  // independent of the scale factor and the display rotation settings.
+  virtual void MoveCursorTo(const gfx::PointF& location) = 0;
+
+  // Simulates a mouse button click.  |button| must be one of
+  // EF_LEFT_MOUSE_BUTTON, EF_RIGHT_MOUSE_BUTTON or EF_MIDDLE_MOUSE_BUTTON.
+  // SystemInputInjector will apply the correct modifiers (shift, ctrl, etc).
+  virtual void InjectMouseButton(EventFlags button, bool down) = 0;
+
+  // |delta_x| and |delta_y| are in physical pixels independent of the scale
+  // factor.
+  virtual void InjectMouseWheel(int delta_x, int delta_y) = 0;
+
+  // Simulates a key press.  SystemInputInjector maps |physical_key| to the
+  // correct logical key based on the current keyboard layout.
+  virtual void InjectKeyPress(DomCode physical_key, bool down) = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SystemInputInjector);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PUBLIC_SYSTEM_INPUT_INJECTOR_H_