chrome/browser/ui/cocoa/window_size_autosaver.h

   1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_COCOA_WINDOW_SIZE_AUTOSAVER_H_
   6 #define CHROME_BROWSER_UI_COCOA_WINDOW_SIZE_AUTOSAVER_H_
   7
   8 class PrefService;
   9 @class NSWindow;
  10
  11 // WindowSizeAutosaver is a helper class that makes it easy to let windows
  12 // autoremember their position or position and size in a PrefService object.
  13 // To use this, add a |base::scoped_nsobject<WindowSizeAutosaver>| to your
  14 // window
  15 // controller and initialize it in the window controller's init method, passing
  16 // a window and an autosave name. The autosaver will register for "window moved"
  17 // and "window resized" notifications and write the current window state to the
  18 // prefs service every time they fire. The window's size is automatically
  19 // restored when the autosaver's |initWithWindow:...| method is called.
  20 //
  21 // Note: Your xib file should have "Visible at launch" UNCHECKED, so that the
  22 // initial repositioning is not visible.
  23 @interface WindowSizeAutosaver : NSObject {
  24   NSWindow* window_;  // weak
  25   PrefService* prefService_;  // weak
  26   const char* path_;
  27 }
  28
  29 - (id)initWithWindow:(NSWindow*)window
  30          prefService:(PrefService*)prefs
  31                 path:(const char*)path;
  32 @end
  33
  34 #endif  // CHROME_BROWSER_UI_COCOA_WINDOW_SIZE_AUTOSAVER_H_
  35