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 <vector>

#include "base/macros.h"
#include "base/strings/string16.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/web_dialogs/web_dialog_delegate.h"
#include "url/gurl.h"

namespace content {
class BrowserContext;
}

namespace chromeos {

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

   protected:
    virtual ~Delegate() {}
  };

  // If |parent_window| is null then the dialog is placed in the modal dialog
  // container on the primary display.
  LoginWebDialog(content::BrowserContext* browser_context,
                 Delegate* delegate,
                 gfx::NativeWindow parent_window,
                 const base::string16& title,
                 const GURL& url);
  ~LoginWebDialog() override;

  void Show();

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

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

  static content::WebContents* GetCurrentWebContents();

  // Returns |dialog_window_| instance for test, can be NULL if dialog is not
  // shown or closed.
  gfx::NativeWindow get_dialog_window_for_test() const {
    return dialog_window_;
  }

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

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

  base::string16 title_;
  const GURL url_;

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

  DISALLOW_COPY_AND_ASSIGN(LoginWebDialog);
};

}  // namespace chromeos

#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOGIN_WEB_DIALOG_H_