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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GIN_MODULES_FILE_MODULE_PROVIDER_H_
#define GIN_MODULES_FILE_MODULE_PROVIDER_H_
#include <set>
#include <string>
#include <vector>
#include "base/files/file_path.h"
#include "base/macros.h"
#include "gin/gin_export.h"
#include "gin/runner.h"
namespace gin {
// FileModuleProvider knows how to load AMD modules off disk. It searches for
// modules in the directories indiciated by |search_paths|. Although we still
// read from the file system on the main thread, we'll eventually want to move
// the reads to a background thread.
class GIN_EXPORT FileModuleProvider {
public:
explicit FileModuleProvider(
const std::vector<base::FilePath>& search_paths);
~FileModuleProvider();
// Searches for modules with |ids| in the file system. If found, the modules
// will be executed asynchronously by |runner|.
void AttempToLoadModules(Runner* runner, const std::set<std::string>& ids);
private:
std::vector<base::FilePath> search_paths_;
// We'll only search for a given module once. We remember the set of modules
// we've already looked for in |attempted_ids_|.
std::set<std::string> attempted_ids_;
DISALLOW_COPY_AND_ASSIGN(FileModuleProvider);
};
} // namespace gin
#endif // GIN_MODULES_FILE_MODULE_PROVIDER_H_