A new WM bootstrap flow

mojo/services/view_manager/view_manager_init_service_context.cc

+// Copyright 2014 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 "mojo/services/view_manager/view_manager_init_service_context.h"
+
+#include "base/bind.h"
+#include "mojo/services/view_manager/root_node_manager.h"
+#include "mojo/services/view_manager/view_manager_init_service_impl.h"
+
+namespace mojo {
+namespace view_manager {
+namespace service {
+
+ViewManagerInitServiceContext::ViewManagerInitServiceContext()
+    : is_tree_host_ready_(false) {}
+ViewManagerInitServiceContext::~ViewManagerInitServiceContext() {}
+
+void ViewManagerInitServiceContext::AddConnection(
+    ViewManagerInitServiceImpl* connection) {
+  DCHECK(std::find(connections_.begin(), connections_.end(), connection) ==
+                   connections_.end());
+  connections_.push_back(connection);
+}
+
+void ViewManagerInitServiceContext::RemoveConnection(
+    ViewManagerInitServiceImpl* connection) {
+  Connections::iterator it =
+      std::find(connections_.begin(), connections_.end(), connection);
+  DCHECK(it != connections_.end());
+  connections_.erase(it);
+
+  // This object is owned by an object that outlives the current thread's
+  // message loop, so we need to destroy the RootNodeManager earlier, as it may
+  // attempt to post tasks during its destruction.
+  if (connections_.empty())
+    root_node_manager_.reset();
+}
+
+void ViewManagerInitServiceContext::ConfigureIncomingConnection(
+    ApplicationConnection* connection) {
+  if (!root_node_manager_.get()) {
+    root_node_manager_.reset(new RootNodeManager(
+        connection,
+        this,
+        base::Bind(&ViewManagerInitServiceContext::OnNativeViewportDeleted,
+                   base::Unretained(this))));
+  }
+}
+
+void ViewManagerInitServiceContext::OnNativeViewportDeleted() {
+  for (Connections::const_iterator it = connections_.begin();
+       it != connections_.end(); ++it) {
+    (*it)->OnNativeViewportDeleted();
+  }
+}
+
+void ViewManagerInitServiceContext::OnRootViewManagerWindowTreeHostCreated() {
+  DCHECK(!is_tree_host_ready_);
+  is_tree_host_ready_ = true;
+  for (Connections::const_iterator it = connections_.begin();
+       it != connections_.end(); ++it) {
+    (*it)->OnRootViewManagerWindowTreeHostCreated();
+  }
+}
+
+}  // namespace service
+}  // namespace view_manager
+}  // namespace mojo