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// Copyright (c) 2012 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 CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_
#define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_
#include <map>
#include <memory>
#include <set>
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string16.h"
#include "chrome/browser/devtools/devtools_file_watcher.h"
#include "components/prefs/pref_change_registrar.h"
class Profile;
namespace base {
class FilePath;
class SequencedTaskRunner;
}
namespace content {
class WebContents;
}
class DevToolsFileHelper {
public:
struct FileSystem {
FileSystem();
FileSystem(const std::string& file_system_name,
const std::string& root_url,
const std::string& file_system_path);
std::string file_system_name;
std::string root_url;
std::string file_system_path;
};
class Delegate {
public:
virtual ~Delegate() {}
virtual void FileSystemAdded(const FileSystem& file_system) = 0;
virtual void FileSystemRemoved(const std::string& file_system_path) = 0;
virtual void FilePathsChanged(
const std::vector<std::string>& changed_paths,
const std::vector<std::string>& added_paths,
const std::vector<std::string>& removed_paths) = 0;
};
DevToolsFileHelper(content::WebContents* web_contents, Profile* profile,
Delegate* delegate);
~DevToolsFileHelper();
typedef base::Callback<void(void)> SaveCallback;
typedef base::Callback<void(void)> AppendCallback;
typedef base::Callback<void(const base::string16&,
const base::Callback<void(bool)>&)>
ShowInfoBarCallback;
// Saves |content| to the file and associates its path with given |url|.
// If client is calling this method with given |url| for the first time
// or |save_as| is true, confirmation dialog is shown to the user.
void Save(const std::string& url,
const std::string& content,
bool save_as,
const SaveCallback& saveCallback,
const SaveCallback& cancelCallback);
// Append |content| to the file that has been associated with given |url|.
// The |url| can be associated with a file via calling Save method.
// If the Save method has not been called for this |url|, then
// Append method does nothing.
void Append(const std::string& url,
const std::string& content,
const AppendCallback& callback);
// 1. If empty |file_system_path| is passed, shows select folder dialog.
// If user cancels folder selection, passes empty FileSystem struct to
// |callback|.
// If non-empty |file_system_path| is passed, verifies that corresponding
// folder contains the ".devtools" project file, if not, passes empty
// FileSystem struct to |callback|.
// 2. Shows infobar by means of |show_info_bar_callback| to let the user
// decide whether to grant security permissions or not.
// If user allows adding file system in infobar, grants renderer
// read/write permissions, registers isolated file system for it and
// passes FileSystem struct to |callback|. Saves file system path to prefs.
// If user denies adding file system in infobar, passes error string to
// |callback|.
void AddFileSystem(const std::string& file_system_path,
const ShowInfoBarCallback& show_info_bar_callback);
// Upgrades dragged file system permissions to a read-write access.
// Shows infobar by means of |show_info_bar_callback| to let the user decide
// whether to grant security permissions or not.
// If user allows adding file system in infobar, grants renderer read/write
// permissions, registers isolated file system for it and passes FileSystem
// struct to |callback|. Saves file system path to prefs.
// If user denies adding file system in infobar, passes error string to
// |callback|.
void UpgradeDraggedFileSystemPermissions(
const std::string& file_system_url,
const ShowInfoBarCallback& show_info_bar_callback);
// Loads file system paths from prefs, grants permissions and registers
// isolated file system for those of them that contain magic file and passes
// FileSystem structs for registered file systems to |callback|.
std::vector<FileSystem> GetFileSystems();
// Removes isolated file system for given |file_system_path|.
void RemoveFileSystem(const std::string& file_system_path);
// Returns whether access to the folder on given |file_system_path| was
// granted.
bool IsFileSystemAdded(const std::string& file_system_path);
private:
void SaveAsFileSelected(const std::string& url,
const std::string& content,
const SaveCallback& callback,
const base::FilePath& path);
void InnerAddFileSystem(
const ShowInfoBarCallback& show_info_bar_callback,
const base::FilePath& path);
void AddUserConfirmedFileSystem(
const base::FilePath& path,
bool allowed);
void FileSystemPathsSettingChanged();
void FilePathsChanged(const std::vector<std::string>& changed_paths,
const std::vector<std::string>& added_paths,
const std::vector<std::string>& removed_paths);
// This should only be called on the file sequence.
static void CheckProjectFileExistsAndAddFileSystem(
base::WeakPtr<DevToolsFileHelper> self,
ShowInfoBarCallback show_info_bar_callback,
base::FilePath path);
content::WebContents* web_contents_;
Profile* profile_;
DevToolsFileHelper::Delegate* delegate_;
typedef std::map<std::string, base::FilePath> PathsMap;
PathsMap saved_files_;
PrefChangeRegistrar pref_change_registrar_;
std::set<std::string> file_system_paths_;
std::unique_ptr<DevToolsFileWatcher, DevToolsFileWatcher::Deleter>
file_watcher_;
scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
base::WeakPtrFactory<DevToolsFileHelper> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(DevToolsFileHelper);
};
#endif // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_
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