Mozart: Implement basic input event dispatch with hit testing.

services/ui/input_manager/input_connection_impl.cc

+// Copyright 2016 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 "services/ui/input_manager/input_connection_impl.h"
+
+#include "base/bind.h"
+#include "base/logging.h"
+#include "services/ui/input_manager/input_associate.h"
+
+namespace input_manager {
+
+InputConnectionImpl::InputConnectionImpl(
+    InputAssociate* associate,
+    mojo::ui::ViewTokenPtr view_token,
+    mojo::InterfaceRequest<mojo::ui::InputConnection> request)
+    : associate_(associate),
+      view_token_(view_token.Pass()),
+      binding_(this, request.Pass()) {
+  DCHECK(associate_);
+  DCHECK(view_token_);
+  binding_.set_connection_error_handler(
+      base::Bind(&InputAssociate::OnInputConnectionDied,
+                 base::Unretained(associate_), base::Unretained(this)));
+}
+
+InputConnectionImpl::~InputConnectionImpl() {}
+
+void InputConnectionImpl::DeliverEvent(mojo::EventPtr event) {
+  // TODO(jeffbrown): Pass the result back up the stack and handle errors.
+  if (!listener_) {
+    DVLOG(1) << "DeliverEvent: dropped because there was no listener";
+    return;
+  }
+
+  listener_->OnEvent(event.Pass(),
+                     base::Bind(&InputConnectionImpl::OnEventFinished,
+                                base::Unretained(this)));
+}
+
+void InputConnectionImpl::OnEventFinished(bool handled) {
+  // TODO: this code doesn't really belong here
+}
+
+void InputConnectionImpl::SetListener(
+    mojo::InterfaceHandle<mojo::ui::InputListener> listener) {
+  listener_ = mojo::ui::InputListenerPtr::Create(std::move(listener));
+}
+
+}  // namespace input_manager