extensions/renderer/renderer_extension_registry.h

   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 #ifndef EXTENSIONS_RENDERER_RENDERER_EXTENSION_REGISTRY_H_
   6 #define EXTENSIONS_RENDERER_RENDERER_EXTENSION_REGISTRY_H_
   7
   8 #include <string>
   9
  10 #include "base/synchronization/lock.h"
  11 #include "extensions/common/extension_set.h"
  12
  13 class GURL;
  14
  15 namespace extensions {
  16
  17 // Thread safe container for all loaded extensions in this process,
  18 // essentially the renderer counterpart to ExtensionRegistry.
  19 class RendererExtensionRegistry {
  20  public:
  21   RendererExtensionRegistry();
  22   ~RendererExtensionRegistry();
  23
  24   static RendererExtensionRegistry* Get();
  25
  26   // Returns the ExtensionSet that underlies this RenderExtensionRegistry.
  27   //
  28   // This is not thread-safe and must only be called on the RenderThread, but
  29   // even so, it's not thread safe because other threads may decide to
  30   // modify this. Don't persist a reference to this.
  31   //
  32   // TODO(annekao): remove or make thread-safe and callback-based.
  33   const ExtensionSet* GetMainThreadExtensionSet() const;
  34
  35   size_t size() const;
  36   bool is_empty() const;
  37
  38   // Forwards to the ExtensionSet methods by the same name.
  39   bool Contains(const std::string& id) const;
  40   bool Insert(const scoped_refptr<const Extension>& extension);
  41   bool Remove(const std::string& id);
  42   std::string GetExtensionOrAppIDByURL(const GURL& url) const;
  43   const Extension* GetExtensionOrAppByURL(const GURL& url) const;
  44   const Extension* GetHostedAppByURL(const GURL& url) const;
  45   const Extension* GetByID(const std::string& id) const;
  46   ExtensionIdSet GetIDs() const;
  47   bool ExtensionBindingsAllowed(const GURL& url) const;
  48
  49  private:
  50   ExtensionSet extensions_;
  51
  52   mutable base::Lock lock_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(RendererExtensionRegistry);
  55 };
  56
  57 }  // namespace extensions
  58
  59 #endif  // EXTENSIONS_RENDERER_RENDERER_EXTENSION_REGISTRY_H_