blob: e14a6107eea89a8419059d43ebda022105946b30 [file] [log] [blame]
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/common/system/tray/fixed_sized_scroll_view.h"
#include "ash/common/material_design/material_design_controller.h"
#include "ui/views/controls/scrollbar/overlay_scroll_bar.h"
namespace ash {
namespace {
bool UseMd() {
return MaterialDesignController::IsSystemTrayMenuMaterial();
}
} // namespace
FixedSizedScrollView::FixedSizedScrollView() {
set_notify_enter_exit_on_child(true);
if (UseMd())
SetVerticalScrollBar(new views::OverlayScrollBar(false));
}
FixedSizedScrollView::~FixedSizedScrollView() {}
void FixedSizedScrollView::SetContentsView(views::View* view) {
SetContents(view);
if (!UseMd())
view->SetBoundsRect(gfx::Rect(view->GetPreferredSize()));
}
void FixedSizedScrollView::SetFixedSize(const gfx::Size& size) {
DCHECK(!UseMd());
if (fixed_size_ == size)
return;
fixed_size_ = size;
PreferredSizeChanged();
}
void FixedSizedScrollView::set_fixed_size(const gfx::Size& size) {
DCHECK(!UseMd());
fixed_size_ = size;
}
gfx::Size FixedSizedScrollView::GetPreferredSize() const {
if (UseMd())
return views::View::GetPreferredSize();
gfx::Size size =
fixed_size_.IsEmpty() ? contents()->GetPreferredSize() : fixed_size_;
gfx::Insets insets = GetInsets();
size.Enlarge(insets.width(), insets.height());
return size;
}
void FixedSizedScrollView::Layout() {
if (UseMd())
return views::ScrollView::Layout();
gfx::Rect bounds = gfx::Rect(contents()->GetPreferredSize());
bounds.set_width(std::max(0, width() - GetScrollBarWidth()));
// Keep the origin of the contents unchanged so that the list will not scroll
// away from the current visible region user is viewing. ScrollView::Layout()
// will make sure the contents line up with its viewport properly if
// the contents moves out of the viewport region.
bounds.set_origin(contents()->bounds().origin());
contents()->SetBoundsRect(bounds);
views::ScrollView::Layout();
if (!vertical_scroll_bar()->visible()) {
gfx::Rect bounds = contents()->bounds();
bounds.set_width(bounds.width() + GetScrollBarWidth());
contents()->SetBoundsRect(bounds);
}
}
void FixedSizedScrollView::OnBoundsChanged(const gfx::Rect& previous_bounds) {
if (UseMd())
return;
gfx::Rect bounds = gfx::Rect(contents()->GetPreferredSize());
bounds.set_width(std::max(0, width() - GetScrollBarWidth()));
contents()->SetBoundsRect(bounds);
}
} // namespace ash