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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 CHROME_BROWSER_UI_WEBUI_CHROMEOS_SALSA_UI_H_
#define CHROME_BROWSER_UI_WEBUI_CHROMEOS_SALSA_UI_H_
#include <map>
#include "base/values.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/web_ui_controller.h"
namespace base {
class ListValue;
class Value;
} // namespace base
// The WebUI for 'chrome://salsa' -- a user front end for the touch UI
// blind user studies. I does this by setting gesture preference values
// without the user knowing which ones and having them try out various
// settings to see which results in a better experience for them.
class SalsaUI : public content::WebUIController {
public:
// Constructs a new GestureConfig for the specified |web_ui|.
explicit SalsaUI(content::WebUI* web_ui);
~SalsaUI() override;
private:
// Set a preference setting's value.
// Two parameters are provided in a JS list: prefName and value, the
// key of the preference value to be set, and the value it's to be set to.
void SetPreferenceValue(const base::ListValue* args);
// Record the current value for a preference key and store the key/value pair
// in the member variable orig_values_.
void BackupPreferenceValue(const base::ListValue* args);
// Check and see if a key is on the whitelist. Returns the index into
// the whitelist on success and -1 on failure.
int WhitelistIndex(const char* key) const;
std::map<int, const base::Value*> orig_values_;
DISALLOW_COPY_AND_ASSIGN(SalsaUI);
};
#endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_SALSA_UI_H_
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