ios/chrome/browser/infobars/infobar_controller.mm

   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 #include "ios/chrome/browser/infobars/infobar_controller.h"
   6
   7 #include "base/logging.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #import "ios/public/provider/chrome/browser/ui/infobar_view_protocol.h"
  10
  11 @interface InfoBarController () {
  12   base::scoped_nsobject<UIView<InfoBarViewProtocol>> _infoBarView;
  13 }
  14 @end
  15
  16 @implementation InfoBarController
  17 @synthesize delegate = _delegate;
  18
  19 - (instancetype)initWithDelegate:(InfoBarViewDelegate*)delegate {
  20   self = [super init];
  21   if (self) {
  22     DCHECK(delegate);
  23     _delegate = delegate;
  24   }
  25   return self;
  26 }
  27
  28 - (void)dealloc {
  29   [_infoBarView removeFromSuperview];
  30   [super dealloc];
  31 }
  32
  33 - (int)barHeight {
  34   return CGRectGetHeight([_infoBarView frame]);
  35 }
  36
  37 - (void)layoutForDelegate:(infobars::InfoBarDelegate*)delegate
  38                     frame:(CGRect)bounds {
  39   DCHECK(!_infoBarView);
  40   _infoBarView = [self viewForDelegate:delegate frame:bounds];
  41 }
  42
  43 - (base::scoped_nsobject<UIView<InfoBarViewProtocol>>)
  44     viewForDelegate:(infobars::InfoBarDelegate*)delegate
  45               frame:(CGRect)bounds {
  46   // Must be overriden in subclasses.
  47   NOTREACHED();
  48   return _infoBarView;
  49 }
  50
  51 - (void)onHeightsRecalculated:(int)newHeight {
  52   [_infoBarView setVisibleHeight:newHeight];
  53 }
  54
  55 - (UIView<InfoBarViewProtocol>*)view {
  56   return _infoBarView;
  57 }
  58
  59 - (void)removeView {
  60   [_infoBarView removeFromSuperview];
  61 }
  62
  63 - (void)detachView {
  64   [_infoBarView resetDelegate];
  65   _delegate = nullptr;
  66 }
  67
  68 @end