mozart: Initial commit of the view manager.

services/ui/view_manager/view_host_impl.cc

+// 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.
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "services/ui/view_manager/view_host_impl.h"
+
+namespace view_manager {
+
+ViewHostImpl::ViewHostImpl(
+    ViewRegistry* registry,
+    ViewState* state,
+    mojo::InterfaceRequest<mojo::ui::ViewHost> view_host_request)
+    : registry_(registry),
+      state_(state),
+      binding_(this, view_host_request.Pass()) {}
+
+ViewHostImpl::~ViewHostImpl() {}
+
+void ViewHostImpl::GetServiceProvider(
+    mojo::InterfaceRequest<mojo::ServiceProvider> service_provider) {
+  state_->GetServiceProvider(service_provider.Pass());
+}
+
+void ViewHostImpl::RequestLayout() {
+  registry_->RequestLayout(state_);
+}
+
+void ViewHostImpl::AddChild(uint32_t child_key,
+                            mojo::ui::ViewTokenPtr child_view_token) {
+  registry_->AddChild(state_, child_key, child_view_token.Pass());
+}
+
+void ViewHostImpl::RemoveChild(uint32_t child_key) {
+  registry_->RemoveChild(state_, child_key);
+}
+
+static void RunLayoutChildCallback(
+    const ViewHostImpl::LayoutChildCallback& callback,
+    mojo::ui::ViewLayoutInfoPtr info) {
+  callback.Run(info.Pass());
+}
+
+void ViewHostImpl::LayoutChild(
+    uint32_t child_key,
+    mojo::ui::ViewLayoutParamsPtr child_layout_params,
+    const LayoutChildCallback& callback) {
+  registry_->LayoutChild(state_, child_key, child_layout_params.Pass(),
+                         base::Bind(&RunLayoutChildCallback, callback));
+}
+
+}  // namespace view_manager