components/view_manager/view_manager_app.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/view_manager/view_manager_app.h"
   6
   7 #include "components/view_manager/client_connection.h"
   8 #include "components/view_manager/connection_manager.h"
   9 #include "components/view_manager/display_manager.h"
  10 #include "components/view_manager/view_manager_service_impl.h"
  11 #include "mojo/application/application_runner_chromium.h"
  12 #include "mojo/common/tracing_impl.h"
  13 #include "third_party/mojo/src/mojo/public/c/system/main.h"
  14 #include "third_party/mojo/src/mojo/public/cpp/application/application_connection.h"
  15 #include "third_party/mojo/src/mojo/public/cpp/application/application_impl.h"
  16
  17 using mojo::ApplicationConnection;
  18 using mojo::ApplicationImpl;
  19 using mojo::InterfaceRequest;
  20 using mojo::ViewManagerService;
  21 using mojo::WindowManagerInternalClient;
  22
  23 namespace view_manager {
  24
  25 ViewManagerApp::ViewManagerApp()
  26     : app_impl_(nullptr), wm_app_connection_(nullptr) {
  27 }
  28
  29 ViewManagerApp::~ViewManagerApp() {}
  30
  31 void ViewManagerApp::Initialize(ApplicationImpl* app) {
  32   app_impl_ = app;
  33   tracing_.Initialize(app);
  34 }
  35
  36 bool ViewManagerApp::ConfigureIncomingConnection(
  37     ApplicationConnection* connection) {
  38   if (connection_manager_.get()) {
  39     VLOG(1) << "ViewManager allows only one window manager connection.";
  40     return false;
  41   }
  42   wm_app_connection_ = connection;
  43   // |connection| originates from the WindowManager. Let it connect directly
  44   // to the ViewManager and WindowManagerInternalClient.
  45   connection->AddService<ViewManagerService>(this);
  46   connection->AddService<WindowManagerInternalClient>(this);
  47   connection->ConnectToService(&wm_internal_);
  48   // If no ServiceProvider has been sent, refuse the connection.
  49   if (!wm_internal_)
  50     return false;
  51   wm_internal_.set_error_handler(this);
  52
  53   scoped_ptr<DefaultDisplayManager> display_manager(new DefaultDisplayManager(
  54       app_impl_, base::Bind(&ViewManagerApp::OnLostConnectionToWindowManager,
  55                             base::Unretained(this))));
  56   connection_manager_.reset(
  57       new ConnectionManager(this, display_manager.Pass(), wm_internal_.get()));
  58   return true;
  59 }
  60
  61 void ViewManagerApp::OnLostConnectionToWindowManager() {
  62   ApplicationImpl::Terminate();
  63 }
  64
  65 ClientConnection* ViewManagerApp::CreateClientConnectionForEmbedAtView(
  66     ConnectionManager* connection_manager,
  67     mojo::InterfaceRequest<mojo::ViewManagerService> service_request,
  68     mojo::ConnectionSpecificId creator_id,
  69     const std::string& creator_url,
  70     const std::string& url,
  71     const ViewId& root_id) {
  72   mojo::ViewManagerClientPtr client;
  73   app_impl_->ConnectToService(url, &client);
  74
  75   scoped_ptr<ViewManagerServiceImpl> service(new ViewManagerServiceImpl(
  76       connection_manager, creator_id, creator_url, url, root_id));
  77   return new DefaultClientConnection(service.Pass(), connection_manager,
  78                                      service_request.Pass(), client.Pass());
  79 }
  80
  81 ClientConnection* ViewManagerApp::CreateClientConnectionForEmbedAtView(
  82     ConnectionManager* connection_manager,
  83     mojo::InterfaceRequest<mojo::ViewManagerService> service_request,
  84     mojo::ConnectionSpecificId creator_id,
  85     const std::string& creator_url,
  86     const ViewId& root_id,
  87     mojo::ViewManagerClientPtr view_manager_client) {
  88   scoped_ptr<ViewManagerServiceImpl> service(new ViewManagerServiceImpl(
  89       connection_manager, creator_id, creator_url, std::string(), root_id));
  90   return new DefaultClientConnection(service.Pass(), connection_manager,
  91                                      service_request.Pass(),
  92                                      view_manager_client.Pass());
  93 }
  94
  95 void ViewManagerApp::Create(ApplicationConnection* connection,
  96                             InterfaceRequest<ViewManagerService> request) {
  97   if (connection_manager_->has_window_manager_client_connection()) {
  98     VLOG(1) << "ViewManager interface requested more than once.";
  99     return;
 100   }
 101
 102   scoped_ptr<ViewManagerServiceImpl> service(new ViewManagerServiceImpl(
 103       connection_manager_.get(), kInvalidConnectionId, std::string(),
 104       std::string("mojo:window_manager"), RootViewId()));
 105   mojo::ViewManagerClientPtr client;
 106   wm_internal_client_request_ = GetProxy(&client);
 107   scoped_ptr<ClientConnection> client_connection(
 108       new DefaultClientConnection(service.Pass(), connection_manager_.get(),
 109                                   request.Pass(), client.Pass()));
 110   connection_manager_->SetWindowManagerClientConnection(
 111       client_connection.Pass());
 112 }
 113
 114 void ViewManagerApp::Create(
 115     ApplicationConnection* connection,
 116     InterfaceRequest<WindowManagerInternalClient> request) {
 117   if (wm_internal_client_binding_.get()) {
 118     VLOG(1) << "WindowManagerInternalClient requested more than once.";
 119     return;
 120   }
 121
 122   // ConfigureIncomingConnection() must have been called before getting here.
 123   DCHECK(connection_manager_.get());
 124   wm_internal_client_binding_.reset(
 125       new mojo::Binding<WindowManagerInternalClient>(connection_manager_.get(),
 126                                                      request.Pass()));
 127   wm_internal_client_binding_->set_error_handler(this);
 128   wm_internal_->SetViewManagerClient(
 129       wm_internal_client_request_.PassMessagePipe());
 130 }
 131
 132 void ViewManagerApp::OnConnectionError() {
 133   ApplicationImpl::Terminate();
 134 }
 135
 136 }  // namespace view_manager