ash/system/tray/fixed_sized_scroll_view.cc

   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 "ash/system/tray/fixed_sized_scroll_view.h"
   6
   7 namespace ash {
   8 namespace internal {
   9
  10 FixedSizedScrollView::FixedSizedScrollView() {
  11   set_notify_enter_exit_on_child(true);
  12 }
  13
  14 FixedSizedScrollView::~FixedSizedScrollView() {
  15 }
  16
  17 void FixedSizedScrollView::SetContentsView(views::View* view) {
  18   SetContents(view);
  19   view->SetBoundsRect(gfx::Rect(view->GetPreferredSize()));
  20 }
  21
  22 void FixedSizedScrollView::SetFixedSize(const gfx::Size& size) {
  23   if (fixed_size_ == size)
  24     return;
  25   fixed_size_ = size;
  26   PreferredSizeChanged();
  27 }
  28
  29 gfx::Size FixedSizedScrollView::GetPreferredSize() {
  30   gfx::Size size = fixed_size_.IsEmpty() ?
  31       contents()->GetPreferredSize() : fixed_size_;
  32   gfx::Insets insets = GetInsets();
  33   size.Enlarge(insets.width(), insets.height());
  34   return size;
  35 }
  36
  37 void FixedSizedScrollView::Layout() {
  38   gfx::Rect bounds = gfx::Rect(contents()->GetPreferredSize());
  39   bounds.set_width(std::max(0, width() - GetScrollBarWidth()));
  40   contents()->SetBoundsRect(bounds);
  41
  42   views::ScrollView::Layout();
  43   if (!vertical_scroll_bar()->visible()) {
  44     gfx::Rect bounds = contents()->bounds();
  45     bounds.set_width(bounds.width() + GetScrollBarWidth());
  46     contents()->SetBoundsRect(bounds);
  47   }
  48 }
  49
  50 void FixedSizedScrollView::OnBoundsChanged(const gfx::Rect& previous_bounds) {
  51   gfx::Rect bounds = gfx::Rect(contents()->GetPreferredSize());
  52   bounds.set_width(std::max(0, width() - GetScrollBarWidth()));
  53   contents()->SetBoundsRect(bounds);
  54 }
  55
  56 void FixedSizedScrollView::OnPaintFocusBorder(gfx::Canvas* canvas) {
  57   // Do not paint the focus border.
  58 }
  59
  60 }  // namespace internal
  61 }  // namespace ash