summaryrefslogtreecommitdiffstats
path: root/mojo/shell/service_manager.h
blob: fa396c737d9b79620c198240de0ba322942e9ba0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
// Copyright 2013 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.

#ifndef MOJO_SHELL_service_manager_H_
#define MOJO_SHELL_service_manager_H_

#include <map>

#include "base/basictypes.h"
#include "base/callback.h"
#include "mojo/public/shell/shell.mojom.h"
#include "mojo/public/system/core_cpp.h"
#include "url/gurl.h"

namespace mojo {
namespace shell {

class ServiceManager {
 public:
  // Interface to allowing default loading behavior to be overridden for a
  // specific url.
  class Loader {
   public:
    virtual ~Loader();
    virtual void Load(const GURL& url,
                      ScopedShellHandle service_handle) = 0;
   protected:
    Loader();
  };

  // API for testing.
  class TestAPI {
   private:
    friend class ServiceManagerTest;
    explicit TestAPI(ServiceManager* manager) : manager_(manager) {}
    // Returns true if there is a ServiceFactory for this URL.
    bool HasFactoryForURL(const GURL& url) const;

    ServiceManager* manager_;
  };

  ServiceManager();
  ~ServiceManager();

  // Sets the default Loader to be used if not overridden by SetLoaderForURL().
  // Does not take ownership of |loader|.
  void set_default_loader(Loader* loader) { default_loader_ = loader; }
  // Sets a Loader to be used for a specific url.
  // Does not take ownership of |loader|.
  void SetLoaderForURL(Loader* loader, const GURL& gurl);
  // Returns the Loader to use for a url (using default if not overridden.)
  Loader* GetLoaderForURL(const GURL& gurl);
  // Loads a service if necessary and establishes a new client connection.
  void Connect(const GURL& url, ScopedMessagePipeHandle client_handle);

 private:
  class ServiceFactory;

  // Removes a ServiceFactory when it no longer has any connections.
  void RemoveServiceFactory(ServiceFactory* service_factory);

  Loader* default_loader_;
  typedef std::map<GURL, ServiceFactory*> ServiceFactoryMap;
  ServiceFactoryMap url_to_service_factory_;
  typedef std::map<GURL, Loader*> LoaderMap;
  LoaderMap url_to_loader_;
  DISALLOW_COPY_AND_ASSIGN(ServiceManager);
};

}  // namespace shell
}  // namespace mojo

#endif  // MOJO_SHELL_service_manager_H_