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// Copyright 2015 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 EXTENSIONS_BROWSER_WEB_UI_USER_SCRIPT_LOADER_H_
#define EXTENSIONS_BROWSER_WEB_UI_USER_SCRIPT_LOADER_H_
#include <stddef.h>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "extensions/browser/user_script_loader.h"
class WebUIURLFetcher;
namespace content {
class BrowserContext;
}
// UserScriptLoader for WebUI.
class WebUIUserScriptLoader : public extensions::UserScriptLoader {
public:
WebUIUserScriptLoader(content::BrowserContext* browser_context,
const HostID& host_id);
~WebUIUserScriptLoader() override;
private:
struct UserScriptRenderInfo;
using UserScriptRenderInfoMap = std::map<int, UserScriptRenderInfo>;
// UserScriptLoader:
void AddScripts(const std::set<extensions::UserScript>& scripts,
int render_process_id,
int render_view_id) override;
void LoadScripts(scoped_ptr<extensions::UserScriptList> user_scripts,
const std::set<HostID>& changed_hosts,
const std::set<int>& added_script_ids,
LoadScriptsCallback callback) override;
// Called at the end of each fetch, tracking whether all fetches are done.
void OnSingleWebUIURLFetchComplete(extensions::UserScript::File* script_file,
bool success,
const std::string& data);
// Called when the loads of the user scripts are done.
void OnWebUIURLFetchComplete();
// Creates WebUiURLFetchers for the given |script_files|.
void CreateWebUIURLFetchers(extensions::UserScript::FileList* script_files,
content::BrowserContext* browser_context,
int render_process_id,
int render_view_id);
// Caches the render info of script from WebUI when AddScripts is called.
// When starting to load the script, we look up this map to retrieve the
// render info. It is used for the script from WebUI only, since the fetch
// of script content requires the info of associated render.
UserScriptRenderInfoMap script_render_info_map_;
// The number of complete fetchs.
size_t complete_fetchers_;
// Caches |user_scripts_| from UserScriptLoader when loading.
scoped_ptr<extensions::UserScriptList> user_scripts_cache_;
LoadScriptsCallback scripts_loaded_callback_;
std::vector<scoped_ptr<WebUIURLFetcher>> fetchers_;
DISALLOW_COPY_AND_ASSIGN(WebUIUserScriptLoader);
};
#endif // EXTENSIONS_BROWSER_WEB_UI_USER_SCRIPT_LOADER_H_
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