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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/system/unified/collapse_button.h"
#include "ash/resources/vector_icons/vector_icons.h"
#include "ash/strings/grit/ash_strings.h"
#include "ash/style/icon_button.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/gfx/scoped_canvas.h"
namespace ash {
CollapseButton::CollapseButton(PressedCallback callback)
: IconButton(std::move(callback),
IconButton::Type::kMediumFloating,
&kUnifiedMenuExpandIcon,
IDS_ASH_STATUS_TRAY_COLLAPSE) {}
CollapseButton::~CollapseButton() = default;
void CollapseButton::SetExpandedAmount(double expanded_amount) {
expanded_amount_ = expanded_amount;
if (expanded_amount == 0.0 || expanded_amount == 1.0) {
SetTooltipText(l10n_util::GetStringUTF16(expanded_amount == 1.0
? IDS_ASH_STATUS_TRAY_COLLAPSE
: IDS_ASH_STATUS_TRAY_EXPAND));
}
SchedulePaint();
}
void CollapseButton::PaintButtonContents(gfx::Canvas* canvas) {
gfx::ScopedCanvas scoped(canvas);
canvas->Translate(gfx::Vector2d(size().width() / 2, size().height() / 2));
canvas->sk_canvas()->rotate(expanded_amount_ * 180.);
gfx::ImageSkia image = GetImageToPaint();
canvas->DrawImageInt(image, -image.width() / 2, -image.height() / 2);
}
BEGIN_METADATA(CollapseButton)
END_METADATA
} // namespace ash
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