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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 "services/service_manager/public/cpp/connector.h"
#include "services/ui/public/interfaces/constants.mojom.h"
#include "ui/aura/env.h"
#include "ui/aura/mus/window_tree_client.h"
#include "ui/aura/window_tree_host.h"
#include "ui/events/event.h"
#include "ui/events/event_sink.h"
namespace {
std::unique_ptr<ui::Event> MapEvent(const ui::Event& event) {
if (event.IsScrollEvent()) {
return std::make_unique<ui::PointerEvent>(
ui::MouseWheelEvent(*event.AsScrollEvent()));
}
if (event.IsMouseEvent())
return std::make_unique<ui::PointerEvent>(*event.AsMouseEvent());
if (event.IsTouchEvent())
return std::make_unique<ui::PointerEvent>(*event.AsTouchEvent());
return ui::Event::Clone(event);
}
} // namespace
namespace aura {
EventInjector::EventInjector() {}
EventInjector::~EventInjector() {}
ui::EventDispatchDetails EventInjector::Inject(WindowTreeHost* host,
ui::Event* event) {
Env* env = Env::GetInstance();
DCHECK(env);
DCHECK(host);
DCHECK(event);
if (env->mode() == Env::Mode::LOCAL)
return host->event_sink()->OnEventFromSource(event);
if (event->IsLocatedEvent()) {
// The ui-service expects events coming in to have a location matching the
// root location. The non-ui-service code does this by way of
// OnEventFromSource() ending up in LocatedEvent::UpdateForRootTransform(),
// which reset the root_location to match the location.
event->AsLocatedEvent()->set_root_location_f(
event->AsLocatedEvent()->location_f());
}
if (!event_injector_) {
env->window_tree_client_->connector()->BindInterface(
ui::mojom::kServiceName, &event_injector_);
}
event_injector_->InjectEvent(
host->GetDisplayId(), MapEvent(*event),
base::BindOnce([](bool result) { DCHECK(result); }));
return ui::EventDispatchDetails();
}
} // namespace aura
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