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// Copyright 2017 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/aura/event_injector.h"
#include <utility>
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#include "ui/events/event.h"
#include "ui/events/event_sink.h"
namespace aura {
EventInjector::EventInjector() = default;
EventInjector::~EventInjector() = default;
ui::EventDispatchDetails EventInjector::Inject(WindowTreeHost* host,
ui::Event* event) {
DCHECK(host);
DCHECK(event);
if (event->IsLocatedEvent()) {
ui::LocatedEvent* located_event = event->AsLocatedEvent();
// Transforming the coordinate to the root will apply the screen scale
// factor to the event's location and also the screen rotation degree.
located_event->UpdateForRootTransform(
host->GetRootTransform(),
host->GetRootTransformForLocalEventCoordinates());
}
return host->event_sink()->OnEventFromSource(event);
}
} // namespace aura
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