Refactor common, platform-independent code for the repost form warning dialog on all platforms into a delegate.

The platform-dependent ConstrainedWindow{Gtk,Mac,Win} classes each have their own platform-dependent |ConstrainedWindowDelegate| to inherit from, so instead of a common superclass they now have a RepostFormWarningDelegate.

Also, change the RELOADING notification to REPOST_WARNING_SHOWN to avoid trying to close the dialog while it's already in the process of being closed.

BUG=none
TEST=RepostFormWarningTest.*

Review URL: http://codereview.chromium.org/1520023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@44074 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 53 insertions, 0 deletions

diff --git a/chrome/browser/repost_form_warning_controller.h b/chrome/browser/repost_form_warning_controller.h
new file mode 100644
index 0000000..2b2c0a8
--- /dev/null
+++ b/chrome/browser/repost_form_warning_controller.h
@@ -0,0 +1,53 @@
+// 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_REPOST_FORM_WARNING_CONTROLLER_H_
+#define CHROME_BROWSER_REPOST_FORM_WARNING_CONTROLLER_H_
+
+#include "chrome/browser/tab_contents/constrained_window.h"
+#include "chrome/common/notification_registrar.h"
+
+class NavigationController;
+class TabContents;
+
+// This class is used to continue or cancel a pending reload when the
+// repost form warning is shown. It is owned by the platform-dependent
+// |RepostFormWarning{Gtk,Mac,View}| classes and deletes itself after closing
+// the dialog.
+class RepostFormWarningController : public NotificationObserver {
+ public:
+  explicit RepostFormWarningController(TabContents* tab_contents);
+
+  // Show the warning dialog.
+  void Show(ConstrainedWindowDelegate* window_delegate);
+
+  // Cancel the reload.
+  void Cancel();
+
+  // Continue the reload.
+  void Continue();
+
+ private:
+  virtual ~RepostFormWarningController();
+
+  // NotificationObserver implementation.
+  // Watch for a new load or a closed tab and dismiss the dialog if they occur.
+  void Observe(NotificationType type,
+               const NotificationSource& source,
+               const NotificationDetails& details);
+
+  // Close the warning dialog.
+  void CloseDialog();
+
+  NotificationRegistrar registrar_;
+
+  // Tab contents, used to continue the reload.
+  TabContents* tab_contents_;
+
+  ConstrainedWindow* window_;
+
+  DISALLOW_COPY_AND_ASSIGN(RepostFormWarningController);
+};
+
+#endif  // CHROME_BROWSER_REPOST_FORM_WARNING_CONTROLLER_H_