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// Copyright (c) 2012 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/system/tray/tray_details_view.h"
#include "ash/system/tray/fixed_sized_scroll_view.h"
#include "ash/system/tray/system_tray.h"
#include "ash/system/tray/system_tray_item.h"
#include "ash/system/tray/tray_constants.h"
#include "ui/gfx/canvas.h"
#include "ui/views/background.h"
#include "ui/views/border.h"
#include "ui/views/controls/scroll_view.h"
#include "ui/views/layout/box_layout.h"
namespace ash {
namespace internal {
class ScrollSeparator : public views::View {
public:
ScrollSeparator() {}
virtual ~ScrollSeparator() {}
private:
// Overriden from views::View.
virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
canvas->FillRect(gfx::Rect(0, height() / 2, width(), 1), kBorderLightColor);
}
virtual gfx::Size GetPreferredSize() OVERRIDE {
return gfx::Size(1, kTrayPopupScrollSeparatorHeight);
}
DISALLOW_COPY_AND_ASSIGN(ScrollSeparator);
};
class ScrollBorder : public views::Border {
public:
ScrollBorder() {}
virtual ~ScrollBorder() {}
void set_visible(bool visible) { visible_ = visible; }
private:
// Overridden from views::Border.
virtual void Paint(const views::View& view, gfx::Canvas* canvas) OVERRIDE {
if (!visible_)
return;
canvas->FillRect(gfx::Rect(0, view.height() - 1, view.width(), 1),
kBorderLightColor);
}
virtual gfx::Insets GetInsets() const OVERRIDE {
return gfx::Insets(0, 0, 1, 0);
}
virtual gfx::Size GetMinimumSize() const OVERRIDE {
return gfx::Size(0, 1);
}
bool visible_;
DISALLOW_COPY_AND_ASSIGN(ScrollBorder);
};
TrayDetailsView::TrayDetailsView(SystemTrayItem* owner)
: owner_(owner),
footer_(NULL),
scroller_(NULL),
scroll_content_(NULL),
scroll_border_(NULL) {
SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical,
0, 0, 0));
set_background(views::Background::CreateSolidBackground(kBackgroundColor));
}
TrayDetailsView::~TrayDetailsView() {
}
void TrayDetailsView::CreateSpecialRow(int string_id,
ViewClickListener* listener) {
DCHECK(!footer_);
footer_ = new SpecialPopupRow();
footer_->SetTextLabel(string_id, listener);
AddChildViewAt(footer_, child_count());
}
void TrayDetailsView::CreateScrollableList() {
DCHECK(!scroller_);
scroll_content_ = new views::View;
scroll_content_->SetLayoutManager(new views::BoxLayout(
views::BoxLayout::kVertical, 0, 0, 1));
scroller_ = new FixedSizedScrollView;
scroller_->SetContentsView(scroll_content_);
// Note: |scroller_| takes ownership of |scroll_border_|.
scroll_border_ = new ScrollBorder;
scroller_->set_border(scroll_border_);
AddChildView(scroller_);
}
void TrayDetailsView::AddScrollSeparator() {
DCHECK(scroll_content_);
// Do not draw the separator if it is the very first item
// in the scrollable list.
if (scroll_content_->has_children())
scroll_content_->AddChildView(new ScrollSeparator);
}
void TrayDetailsView::Reset() {
RemoveAllChildViews(true);
footer_ = NULL;
scroller_ = NULL;
scroll_content_ = NULL;
}
void TrayDetailsView::TransitionToDefaultView() {
// Cache pointer to owner in this function scope. TrayDetailsView will be
// deleted after called ShowDefaultView.
SystemTrayItem* owner = owner_;
if (footer_ && footer_->content() && footer_->content()->HasFocus())
owner->set_restore_focus(true);
owner->system_tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
owner->set_restore_focus(false);
}
void TrayDetailsView::Layout() {
if (!scroller_ || !footer_ || bounds().IsEmpty()) {
views::View::Layout();
return;
}
scroller_->set_fixed_size(gfx::Size());
gfx::Size size = GetPreferredSize();
// Set the scroller to fill the space above the bottom row, so that the
// bottom row of the detailed view will always stay just above the footer.
gfx::Size scroller_size = scroll_content_->GetPreferredSize();
scroller_->set_fixed_size(gfx::Size(
width() + scroller_->GetScrollBarWidth(),
scroller_size.height() - (size.height() - height())));
views::View::Layout();
// Always make sure the footer element is bottom aligned.
gfx::Rect fbounds = footer_->bounds();
fbounds.set_y(height() - footer_->height());
footer_->SetBoundsRect(fbounds);
}
void TrayDetailsView::OnPaintBorder(gfx::Canvas* canvas) {
if (scroll_border_) {
int index = GetIndexOf(scroller_);
if (index < child_count() - 1 && child_at(index + 1) != footer_)
scroll_border_->set_visible(true);
else
scroll_border_->set_visible(false);
}
views::View::OnPaintBorder(canvas);
}
} // namespace internal
} // namespace ash
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