extensions/renderer/extensions_renderer_client.h

   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 #ifndef EXTENSIONS_RENDERER_EXTENSIONS_RENDERER_CLIENT_H_
   6 #define EXTENSIONS_RENDERER_EXTENSIONS_RENDERER_CLIENT_H_
   7
   8 namespace extensions {
   9
  10 // Interface to allow the extensions module to make render-process-specific
  11 // queries of the embedder. Should be Set() once in the render process.
  12 //
  13 // NOTE: Methods that do not require knowledge of renderer concepts should be
  14 // added in ExtensionsClient (extensions/common/extensions_client.h) even if
  15 // they are only used in the renderer process.
  16 class ExtensionsRendererClient {
  17  public:
  18   virtual ~ExtensionsRendererClient() {}
  19
  20   // Returns true if the current render process was launched incognito.
  21   virtual bool IsIncognitoProcess() const = 0;
  22
  23   // Returns the lowest isolated world ID available to extensions.
  24   // Must be greater than 0. See blink::WebFrame::executeScriptInIsolatedWorld
  25   // (third_party/WebKit/public/web/WebFrame.h) for additional context.
  26   virtual int GetLowestIsolatedWorldId() const = 0;
  27
  28   // Returns the single instance of |this|.
  29   static ExtensionsRendererClient* Get();
  30
  31   // Initialize the single instance.
  32   static void Set(ExtensionsRendererClient* client);
  33 };
  34
  35 }  // namespace extensions
  36
  37 #endif  // EXTENSIONS_RENDERER_EXTENSIONS_RENDERER_CLIENT_H_