Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/events/platform/platform_event_builder.h

-// 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 UI_EVENTS_PLATFORM_EVENT_PLATFORM_EVENT_BUILDER_H_
-#define UI_EVENTS_PLATFORM_EVENT_PLATFORM_EVENT_BUILDER_H_
-
-#include "base/event_types.h"
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-
-namespace ui {
-
-class Event;
-class KeyEvent;
-class LocatedEvent;
-class MouseEvent;
-class MouseWheelEvent;
-class ScrollEvent;
-class TouchEvent;
-
-// Builds ui::Events from native events.
-//
-// In chromium, this functionality was put inline on the individual Event
-// subclasses. This was fine there since all chromium binaries included the
-// system windowing system libraries. In mojo, we have small binaries which
-// have want to have generic events while only the native viewport needs the
-// capability to generate events from platform events.
-class PlatformEventBuilder {
- public:
-  static MouseEvent BuildMouseEvent(const base::NativeEvent& native_event);
-  static MouseWheelEvent BuildMouseWheelEvent(
-      const base::NativeEvent& native_event);
-  static TouchEvent BuildTouchEvent(const base::NativeEvent& native_event);
-  static KeyEvent BuildKeyEvent(const base::NativeEvent& native_event);
-  static ScrollEvent BuildScrollEvent(const base::NativeEvent& native_event);
-
-  // Returns the repeat count based on the previous mouse click, if it is
-  // recent enough and within a small enough distance. Exposed for testing.
-  static int GetRepeatCount(const base::NativeEvent& native_event,
-                            const MouseEvent& event);
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(PlatformEventBuilderXTest,
-                           DoubleClickRequiresRelease);
-  FRIEND_TEST_ALL_PREFIXES(PlatformEventBuilderXTest, SingleClickRightLeft);
-
-  // Resets the last_click_event_ for unit tests.
-  static void ResetLastClickForTest();
-
-  // Takes data from |native_event| and fills the per class details on |event|.
-  static void FillEventFrom(const base::NativeEvent& native_event,
-                            Event* event);
-  static void FillLocatedEventFrom(const base::NativeEvent& native_event,
-                                   LocatedEvent* located_event);
-  static void FillMouseEventFrom(const base::NativeEvent& native_event,
-                                 MouseEvent* mouse_event);
-  static void FillMouseWheelEventFrom(const base::NativeEvent& native_event,
-                                      MouseWheelEvent* mouse_wheel_event);
-  static void FillTouchEventFrom(const base::NativeEvent& native_event,
-                                 TouchEvent* touch_event);
-  static void FillKeyEventFrom(const base::NativeEvent& native_event,
-                               KeyEvent* key_event);
-  static void FillScrollEventFrom(const base::NativeEvent& native_event,
-                                  ScrollEvent* scroll_event);
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformEventBuilder);
-};
-
-}  // namespace ui
-
-#endif  // UI_EVENTS_PLATFORM_EVENT_PLATFORM_EVENT_BUILDER_H_