gin/modules/module_runner_delegate.h

   1 // Copyright 2013 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 GIN_MODULES_MODULE_RUNNER_DELEGATE_H_
   6 #define GIN_MODULES_MODULE_RUNNER_DELEGATE_H_
   7
   8 #include <map>
   9
  10 #include "base/compiler_specific.h"
  11 #include "gin/gin_export.h"
  12 #include "gin/modules/file_module_provider.h"
  13 #include "gin/shell_runner.h"
  14
  15 namespace gin {
  16
  17 typedef v8::Local<v8::Value> (*ModuleGetter)(v8::Isolate* isolate);
  18
  19 // Emebedders that use AMD modules will probably want to use a RunnerDelegate
  20 // that inherits from ModuleRunnerDelegate. ModuleRunnerDelegate lets embedders
  21 // register built-in modules and routes module requests to FileModuleProvider.
  22 class GIN_EXPORT ModuleRunnerDelegate : public ShellRunnerDelegate {
  23  public:
  24   explicit ModuleRunnerDelegate(
  25       const std::vector<base::FilePath>& search_paths);
  26   virtual ~ModuleRunnerDelegate();
  27
  28   void AddBuiltinModule(const std::string& id, ModuleGetter getter);
  29
  30  protected:
  31   void AttemptToLoadMoreModules(Runner* runner);
  32
  33  private:
  34   typedef std::map<std::string, ModuleGetter> BuiltinModuleMap;
  35
  36   // From ShellRunnerDelegate:
  37   virtual v8::Handle<v8::ObjectTemplate> GetGlobalTemplate(
  38       ShellRunner* runner,
  39       v8::Isolate* isolate) OVERRIDE;
  40   virtual void DidCreateContext(ShellRunner* runner) OVERRIDE;
  41   virtual void DidRunScript(ShellRunner* runner) OVERRIDE;
  42
  43   BuiltinModuleMap builtin_modules_;
  44   FileModuleProvider module_provider_;
  45
  46   DISALLOW_COPY_AND_ASSIGN(ModuleRunnerDelegate);
  47 };
  48
  49 }  // namespace gin
  50
  51 #endif  // GIN_MODULES_MODULE_RUNNER_DELEGATE_H_