Refactored out JS specific part of modal dialog stack into its own class, exp...

chrome/browser/js_modal_dialog.h

+// Copyright (c) 2009 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_JS_MODAL_DIALOG_H_
+#define CHROME_BROWSER_JS_MODAL_DIALOG_H_
+
+#include <string>
+
+#include "build/build_config.h"
+#include "chrome/browser/app_modal_dialog.h"
+#include "chrome/common/notification_observer.h"
+#include "chrome/common/notification_registrar.h"
+#include "net/base/cookie_monster.h"
+
+class ExtensionHost;
+class JavaScriptMessageBoxClient;
+
+// A controller+model class for JavaScript alert, confirm, prompt, and
+// onbeforeunload dialog boxes.
+class JavaScriptAppModalDialog : public AppModalDialog,
+                                 public NotificationObserver {
+ public:
+  // A union of data necessary to determine the type of message box to
+  // show.  |dialog_flags| is a MessageBox flag.
+  JavaScriptAppModalDialog(JavaScriptMessageBoxClient* client,
+                           const std::wstring& title,
+                           int dialog_flags,
+                           const std::wstring& message_text,
+                           const std::wstring& default_prompt_text,
+                           bool display_suppress_checkbox,
+                           bool is_before_unload_dialog,
+                           IPC::Message* reply_msg);
+  virtual ~JavaScriptAppModalDialog();
+
+  // AppModalDialog overrides.
+#if defined(OS_LINUX) || defined(OS_MACOSX)
+  virtual void CreateAndShowDialog();
+#endif
+#if defined(OS_LINUX)
+  virtual void HandleDialogResponse(GtkDialog* dialog, gint response_id);
+#endif
+  virtual int GetDialogButtons();
+  virtual void AcceptWindow();
+  virtual void CancelWindow();
+
+  /////////////////////////////////////////////////////////////////////////////
+  // Getters so NativeDialog can get information about the message box.
+  JavaScriptMessageBoxClient* client() {
+    return client_;
+  }
+  int dialog_flags() {
+    return dialog_flags_;
+  }
+  bool is_before_unload_dialog() {
+    return is_before_unload_dialog_;
+  }
+
+  // Callbacks from NativeDialog when the user accepts or cancels the dialog.
+  void OnCancel();
+  void OnAccept(const std::wstring& prompt_text, bool suppress_js_messages);
+  void OnClose();
+
+ protected:
+  // AppModalDialog overrides.
+  virtual void Cleanup();
+  virtual NativeDialog CreateNativeDialog();
+
+ private:
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // Initializes for notifications to listen.
+  void InitNotifications();
+
+  NotificationRegistrar registrar_;
+
+  // An implementation of the client interface to provide supporting methods
+  // and receive results.
+  JavaScriptMessageBoxClient* client_;
+
+  // The client_ as an ExtensionHost, cached for use during notifications that
+  // may arrive after the client has entered its destructor (and is thus
+  // treated as a base JavaScriptMessageBoxClient). This will be NULL if the
+  // client is not an ExtensionHost.
+  ExtensionHost* extension_host_;
+
+  // Information about the message box is held in the following variables.
+  int dialog_flags_;
+  std::wstring message_text_;
+  std::wstring default_prompt_text_;
+  bool display_suppress_checkbox_;
+  bool is_before_unload_dialog_;
+  IPC::Message* reply_msg_;
+
+  DISALLOW_COPY_AND_ASSIGN(JavaScriptAppModalDialog);
+};
+
+#endif  // CHROME_BROWSER_JS_MODAL_DIALOG_H_
+