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// Copyright (c) 2010 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_DOM_UI_TEXTFIELDS_UI_H_
#define CHROME_BROWSER_DOM_UI_TEXTFIELDS_UI_H_
#pragma once

#include <string>

#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
#include "chrome/browser/dom_ui/dom_ui.h"

class RefCountedMemory;

/**
 * ChromeURLDataManager::DataSource implementation that asynchronously answers
 * requests for chrome://textfields URL. On receiving a request, this object
 * reads the html from the local resource textfields.html and sends back the
 * response.
 */
class TextfieldsUIHTMLSource : public ChromeURLDataManager::DataSource {
 public:
  TextfieldsUIHTMLSource();

  // Called when the network layer has requested a resource underneath
  // the path we registered.
  virtual void StartDataRequest(const std::string& path,
                                bool is_off_the_record,
                                int request_id);
  virtual std::string GetMimeType(const std::string& path) const;

 private:
  virtual ~TextfieldsUIHTMLSource();

  DISALLOW_COPY_AND_ASSIGN(TextfieldsUIHTMLSource);
};

/**
 * Handler for JavaScript calls from the DOM.
 */
class TextfieldsDOMHandler : public DOMMessageHandler {
 public:
  TextfieldsDOMHandler();

  // Handles the "textfieldValue" call from the JavaScript. This call
  // synchonizes the value inside the JavaScript textfield with the copy in the
  // DOM object.
  virtual void HandleTextfieldValue(const ListValue* args);

 protected:
  virtual void RegisterMessages();

 private:
  DISALLOW_COPY_AND_ASSIGN(TextfieldsDOMHandler);
};

class TextfieldsUI : public DOMUI {
 public:
  explicit TextfieldsUI(TabContents* contents);

  const std::wstring& text() const { return text_; }
  void set_text(const std::wstring& text) { text_ = text; }

 private:
  std::wstring text_;

  DISALLOW_COPY_AND_ASSIGN(TextfieldsUI);
};

#endif  // CHROME_BROWSER_DOM_UI_TEXTFIELDS_UI_H_