chrome/browser/chromeos/login/ui/login_web_dialog.h

// Copyright 2014 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_CHROMEOS_LOGIN_UI_LOGIN_WEB_DIALOG_H_
#define CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOGIN_WEB_DIALOG_H_

#include <string>

#include "base/compiler_specific.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/size.h"
#include "ui/web_dialogs/web_dialog_delegate.h"
#include "url/gurl.h"

namespace content {
class BrowserContext;
}

namespace chromeos {

class BubbleFrameView;

// Launches web dialog during OOBE/Login with specified URL and title.
class LoginWebDialog : public ui::WebDialogDelegate,
                       public content::NotificationObserver {
 public:
  // Delegate class to get notifications from the dialog.
  class Delegate {
   public:
    // Called when dialog has been closed.
    virtual void OnDialogClosed();

   protected:
    virtual ~Delegate() {}
  };

  enum Style {
    STYLE_GENERIC, // Use generic CreateChromeWindow as a host.
    STYLE_BUBBLE   // Use chromeos::BubbleWindow as a host.
  };

  LoginWebDialog(content::BrowserContext* browser_context,
                 Delegate* delegate,
                 gfx::NativeWindow parent_window,
                 const base::string16& title,
                 const GURL& url);
  virtual ~LoginWebDialog();

  void Show();

  // Overrides default width/height for dialog.
  void SetDialogSize(int width, int height);

  // Overrides dialog title.
  void SetDialogTitle(const base::string16& title);

  void set_url(const GURL& url) { url_ = url; }

  bool is_open() const { return is_open_; }

  static content::WebContents* GetCurrentWebContents();

 protected:
  // ui::WebDialogDelegate implementation.
  virtual ui::ModalType GetDialogModalType() const override;
  virtual base::string16 GetDialogTitle() const override;
  virtual GURL GetDialogContentURL() const override;
  virtual void GetWebUIMessageHandlers(
      std::vector<content::WebUIMessageHandler*>* handlers) const override;
  virtual void GetDialogSize(gfx::Size* size) const override;
  virtual void GetMinimumDialogSize(gfx::Size* size) const override;
  virtual std::string GetDialogArgs() const override;
  virtual void OnDialogShown(
      content::WebUI* webui,
      content::RenderViewHost* render_view_host) override;
  // NOTE: This function deletes this object at the end.
  virtual void OnDialogClosed(const std::string& json_retval) override;
  virtual void OnCloseContents(
      content::WebContents* source, bool* out_close_dialog) override;
  virtual bool ShouldShowDialogTitle() const override;
  virtual bool HandleContextMenu(
      const content::ContextMenuParams& params) override;

  // content::NotificationObserver implementation.
  virtual void Observe(int type,
                       const content::NotificationSource& source,
                       const content::NotificationDetails& details) override;

 private:
  content::BrowserContext* browser_context_;
  gfx::NativeWindow parent_window_;
  // Notifications receiver.
  Delegate* delegate_;

  base::string16 title_;
  GURL url_;
  content::NotificationRegistrar notification_registrar_;
  bool is_open_;

  // Dialog display size.
  int width_;
  int height_;

  DISALLOW_COPY_AND_ASSIGN(LoginWebDialog);
};

}  // namespace chromeos

#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOGIN_WEB_DIALOG_H_