| // 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_ |