mojo/shell/content_handler_connection.cc

   1 // Copyright 2015 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 "mojo/shell/content_handler_connection.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "mojo/shell/application_manager.h"
   9 #include "mojo/shell/connect_to_application_params.h"
  10 #include "mojo/shell/identity.h"
  11
  12 namespace mojo {
  13 namespace shell {
  14
  15 ContentHandlerConnection::ContentHandlerConnection(
  16     ApplicationManager* manager,
  17     const Identity& source,
  18     const Identity& content_handler,
  19     uint32_t id)
  20     : manager_(manager),
  21       identity_(content_handler),
  22       connection_closed_(false),
  23       id_(id) {
  24   ServiceProviderPtr services;
  25
  26   scoped_ptr<ConnectToApplicationParams> params(new ConnectToApplicationParams);
  27   params->set_source(source);
  28   params->SetTarget(identity_);
  29   params->set_services(GetProxy(&services));
  30   manager->ConnectToApplication(params.Pass());
  31
  32   MessagePipe pipe;
  33   content_handler_.Bind(
  34       InterfacePtrInfo<ContentHandler>(pipe.handle0.Pass(), 0u));
  35   services->ConnectToService(ContentHandler::Name_, pipe.handle1.Pass());
  36   content_handler_.set_connection_error_handler(
  37       [this]() { CloseConnection(); });
  38 }
  39
  40 void ContentHandlerConnection::CloseConnection() {
  41   if (connection_closed_)
  42     return;
  43   connection_closed_ = true;
  44   manager_->OnContentHandlerConnectionClosed(this);
  45   delete this;
  46 }
  47
  48 ContentHandlerConnection::~ContentHandlerConnection() {
  49   // If this DCHECK fails then something has tried to delete this object without
  50   // calling CloseConnection.
  51   DCHECK(connection_closed_);
  52 }
  53
  54 }  // namespace shell
  55 }  // namespace mojo