athena/content/app_registry_impl.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 "athena/content/public/app_registry.h"
   6
   7 #include "athena/content/app_activity_registry.h"
   8 #include "base/logging.h"
   9
  10 namespace athena {
  11
  12 class AppRegistryImpl : public AppRegistry {
  13  public:
  14   AppRegistryImpl();
  15   virtual ~AppRegistryImpl();
  16
  17   // AppRegistry:
  18   virtual AppActivityRegistry* GetAppActivityRegistry(
  19       const std::string& app_id,
  20       content::BrowserContext* browser_context) OVERRIDE;
  21   virtual int NumberOfApplications() const OVERRIDE { return app_list_.size(); }
  22
  23  private:
  24   virtual void RemoveAppActivityRegistry(
  25       AppActivityRegistry* registry) OVERRIDE;
  26
  27   std::vector<AppActivityRegistry*> app_list_;
  28
  29   DISALLOW_COPY_AND_ASSIGN(AppRegistryImpl);
  30 };
  31
  32 namespace {
  33
  34 AppRegistryImpl* instance = NULL;
  35
  36 }  // namespace
  37
  38 AppRegistryImpl::AppRegistryImpl() {
  39 }
  40 AppRegistryImpl::~AppRegistryImpl() {
  41   DCHECK(app_list_.empty());
  42 }
  43
  44 AppActivityRegistry* AppRegistryImpl::GetAppActivityRegistry(
  45     const std::string& app_id,
  46     content::BrowserContext* browser_context) {
  47   // Search for an existing proxy.
  48   for (std::vector<AppActivityRegistry*>::iterator it = app_list_.begin();
  49        it != app_list_.end(); ++it) {
  50     if ((*it)->app_id() == app_id &&
  51         (*it)->browser_context() == browser_context)
  52       return *it;
  53   }
  54
  55   // Create and return a new application object.
  56   AppActivityRegistry* app_activity_registry =
  57       new AppActivityRegistry(app_id, browser_context);
  58   app_list_.push_back(app_activity_registry);
  59   return app_activity_registry;
  60 }
  61
  62 void AppRegistryImpl::RemoveAppActivityRegistry(AppActivityRegistry* registry) {
  63   std::vector<AppActivityRegistry*>::iterator item =
  64       std::find(app_list_.begin(), app_list_.end(), registry);
  65   CHECK(item != app_list_.end());
  66   app_list_.erase(item);
  67   delete registry;
  68 }
  69
  70 // static
  71 void AppRegistry::Create() {
  72   DCHECK(!instance);
  73   instance = new AppRegistryImpl();
  74 }
  75
  76 // static
  77 AppRegistry* AppRegistry::Get() {
  78   DCHECK(instance);
  79   return instance;
  80 }
  81
  82 // static
  83 void AppRegistry::ShutDown() {
  84   DCHECK(instance);
  85   delete instance;
  86 }
  87
  88 AppRegistry::AppRegistry() {}
  89
  90 AppRegistry::~AppRegistry() {
  91   instance = NULL;
  92 }
  93
  94 }  // namespace athena