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_FILE_MODULE_PROVIDER_H_ 6 #define GIN_MODULES_FILE_MODULE_PROVIDER_H_ 7 8 #include <set> 9 #include <string> 10 #include <vector> 11 12 #include "base/files/file_path.h" 13 #include "gin/gin_export.h" 14 #include "gin/runner.h" 15 16 namespace gin { 17 18 // FileModuleProvider knows how to load AMD modules off disk. It searches for 19 // modules in the directories indiciated by |search_paths|. Although we still 20 // read from the file system on the main thread, we'll eventually want to move 21 // the reads to a background thread. 22 class GIN_EXPORT FileModuleProvider { 23 public: 24 explicit FileModuleProvider( 25 const std::vector<base::FilePath>& search_paths); 26 ~FileModuleProvider(); 27 28 // Searches for modules with |ids| in the file system. If found, the modules 29 // will be executed asynchronously by |runner|. 30 void AttempToLoadModules(Runner* runner, const std::set<std::string>& ids); 31 32 private: 33 std::vector<base::FilePath> search_paths_; 34 35 // We'll only search for a given module once. We remember the set of modules 36 // we've already looked for in |attempted_ids_|. 37 std::set<std::string> attempted_ids_; 38 39 DISALLOW_COPY_AND_ASSIGN(FileModuleProvider); 40 }; 41 42 } // namespace gin 43 44 #endif // GIN_MODULES_FILE_MODULE_PROVIDER_H_ 45
