| // Copyright (c) 2012 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. |
| |
| #include "ui/events/event_utils.h" |
| |
| #include <vector> |
| |
| #include "ui/events/event.h" |
| #include "ui/gfx/display.h" |
| #include "ui/gfx/screen.h" |
| |
| namespace ui { |
| |
| namespace { |
| int g_custom_event_types = ET_LAST; |
| } // namespace |
| |
| bool EventCanceledDefaultHandling(const Event& event) { |
| return event.phase() == EP_POSTTARGET && event.result() != ER_UNHANDLED; |
| } |
| |
| int RegisterCustomEventType() { |
| return ++g_custom_event_types; |
| } |
| |
| base::TimeDelta EventTimeForNow() { |
| return base::TimeDelta::FromInternalValue( |
| base::TimeTicks::Now().ToInternalValue()); |
| } |
| |
| bool ShouldDefaultToNaturalScroll() { |
| gfx::Screen* screen = gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE); |
| if (!screen) |
| return false; |
| const std::vector<gfx::Display>& displays = screen->GetAllDisplays(); |
| for (std::vector<gfx::Display>::const_iterator it = displays.begin(); |
| it != displays.end(); ++it) { |
| const gfx::Display& display = *it; |
| if (display.IsInternal() && |
| display.touch_support() == gfx::Display::TOUCH_SUPPORT_AVAILABLE) |
| return true; |
| } |
| return false; |
| } |
| |
| } // namespace ui |