text: // 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 CONTENT_PUBLIC_BROWSER_JAVASCRIPT_DIALOG_MANAGER_H_
  #define CONTENT_PUBLIC_BROWSER_JAVASCRIPT_DIALOG_MANAGER_H_
  
  #include <string>
  
  #include "base/callback.h"
  #include "base/strings/string16.h"
  #include "content/common/content_export.h"
  #include "content/public/common/javascript_message_type.h"
  #include "ui/gfx/native_widget_types.h"
  #include "url/gurl.h"
  
  namespace content {
  
  class WebContents;
  
  // An interface consisting of methods that can be called to produce and manage
  // JavaScript dialogs.
  class CONTENT_EXPORT JavaScriptDialogManager {
   public:
    typedef base::Callback<void(bool /* success */,
                                const base::string16& /* user_input */)>
                                    DialogClosedCallback;
  
    // Displays a JavaScript dialog. |did_suppress_message| will not be nil; if
    // |true| is returned in it, the caller will handle faking the reply.
    virtual void RunJavaScriptDialog(
        WebContents* web_contents,
        const GURL& origin_url,
        const std::string& accept_lang,
        JavaScriptMessageType javascript_message_type,
        const base::string16& message_text,
        const base::string16& default_prompt_text,
        const DialogClosedCallback& callback,
        bool* did_suppress_message) = 0;
  
    // Displays a dialog asking the user if they want to leave a page.
    virtual void RunBeforeUnloadDialog(WebContents* web_contents,
                                       const base::string16& message_text,
                                       bool is_reload,
                                       const DialogClosedCallback& callback) = 0;
  
    // Accepts or dismisses the active JavaScript dialog, which must be owned
    // by the given |web_contents|. If |prompt_override| is not null, the prompt
    // text of the dialog should be set before accepting. Returns true if the
    // dialog was handled.
    virtual bool HandleJavaScriptDialog(WebContents* web_contents,
                                        bool accept,
                                        const base::string16* prompt_override);
  
    // Cancels all active and pending dialogs for the given WebContents.
    virtual void CancelActiveAndPendingDialogs(WebContents* web_contents) = 0;
  
    // The given WebContents is being destroyed; discards any saved state tied
    // to it.
    virtual void WebContentsDestroyed(WebContents* web_contents) = 0;
  
    virtual ~JavaScriptDialogManager() {}
  };
  
  }  // namespace content
  
  #endif  // CONTENT_PUBLIC_BROWSER_JAVASCRIPT_DIALOG_MANAGER_H_
  