1 // Copyright (c) 2012 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 "chrome/browser/chromeos/input_method/hidable_area.h" 6 7 #include "ui/views/layout/fill_layout.h" 8 9 namespace chromeos { 10 namespace input_method { 11 12 HidableArea::HidableArea() { 13 place_holder_.reset(new views::View); 14 place_holder_->set_owned_by_client(); // Won't own 15 16 // Initially show nothing. 17 SetLayoutManager(new views::FillLayout); 18 AddChildView(place_holder_.get()); 19 } 20 21 HidableArea::~HidableArea() { 22 } 23 24 void HidableArea::SetContents(views::View* contents) { 25 contents_.reset(contents); 26 contents_->set_owned_by_client(); // Won't own 27 } 28 29 void HidableArea::Show() { 30 if (contents_.get() && contents_->parent() != this) { 31 RemoveAllChildViews(false); // Don't delete child views. 32 AddChildView(contents_.get()); 33 } 34 } 35 36 void HidableArea::Hide() { 37 if (IsShown()) { 38 RemoveAllChildViews(false); // Don't delete child views. 39 AddChildView(place_holder_.get()); 40 } 41 } 42 43 bool HidableArea::IsShown() const { 44 return contents_.get() && contents_->parent() == this; 45 } 46 47 } // namespace input_method 48 } // namespace chromeos 49
