chrome/browser/ui/cocoa/autofill/autofill_layout.h

   1 // Copyright 2013 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_AUTOFILL_AUTOFILL_LAYOUT_H_
   6 #define CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_LAYOUT_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 // Defines a protocol that allows resizing a view hierarchy based on the size
  11 // requirements of the subviews. Is implemented by either views or view
  12 // controllers.
  13 // The way this works together is:
  14 // * Subview indicates by calling -requestRelayout on the window controller.
  15 // * Window controller queries subviews for preferredSize to determine the
  16 //   total size of the contentView, adjusts subview origins appropriately,
  17 //   and calls performLayout on each subview.
  18 // * Subviews then recursively do the same thing.
  19 @protocol AutofillLayout
  20
  21 // Query the preferred size, without actually layouting.
  22 // Akin to -intrinsicContentSize on 10.7
  23 - (NSSize)preferredSize;
  24
  25 // Layout the content according to the preferred size. Will not touch
  26 // frameOrigin. If all objects in the hierarchy were custom views (and not
  27 // view controllers), this could be replaced by overriding
  28 // -resizeSubviewsWithOldSize:.
  29 - (void)performLayout;
  30
  31 @end
  32
  33 #endif  // CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_LAYOUT_H_