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// Copyright 2014 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 "athena/home/minimized_home.h"
#include "ui/views/background.h"
#include "ui/views/layout/box_layout.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
namespace {
const SkColor kDragHandleColorNormal = SK_ColorGRAY;
const SkColor kDragHandleColorHot = SK_ColorWHITE;
class MinimizedHomeView : public views::View {
public:
explicit MinimizedHomeView(athena::MinimizedHomeDragDelegate* delegate)
: delegate_(delegate),
color_(SK_ColorTRANSPARENT) {
SetColor(kDragHandleColorNormal);
}
virtual ~MinimizedHomeView() {}
private:
void SetColor(SkColor color) {
if (color_ == color)
return;
color_ = color;
set_background(views::Background::CreateSolidBackground(color_));
SchedulePaint();
}
// views::View:
virtual gfx::Size GetPreferredSize() const OVERRIDE {
const int kDragHandleWidth = 80;
const int kDragHandleHeight = 4;
return gfx::Size(kDragHandleWidth, kDragHandleHeight);
}
virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE {
if (event.IsLeftMouseButton() && event.GetClickCount() == 1) {
delegate_->OnDragUpCompleted();
SetColor(kDragHandleColorNormal);
return true;
}
return false;
}
virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE {
SetColor(kDragHandleColorHot);
}
virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE {
SetColor(kDragHandleColorNormal);
}
virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE {
SkColor change_color = SK_ColorTRANSPARENT;
if (event->type() == ui::ET_GESTURE_BEGIN &&
event->details().touch_points() == 1) {
change_color = kDragHandleColorHot;
} else if (event->type() == ui::ET_GESTURE_END &&
event->details().touch_points() == 1) {
change_color = kDragHandleColorNormal;
}
if (change_color != SK_ColorTRANSPARENT) {
SetColor(change_color);
event->SetHandled();
return;
}
if (event->type() == ui::ET_GESTURE_SCROLL_BEGIN) {
event->SetHandled();
} else if (event->type() == ui::ET_SCROLL_FLING_START) {
const ui::GestureEventDetails& details = event->details();
const float kFlingCompletionVelocity = -100.f;
if (details.velocity_y() < kFlingCompletionVelocity)
delegate_->OnDragUpCompleted();
SetColor(kDragHandleColorNormal);
}
}
athena::MinimizedHomeDragDelegate* delegate_;
SkColor color_;
DISALLOW_COPY_AND_ASSIGN(MinimizedHomeView);
};
} // namespace
namespace athena {
views::View* CreateMinimizedHome(MinimizedHomeDragDelegate* delegate) {
views::View* content_view = new views::View;
content_view->set_background(
views::Background::CreateSolidBackground(SK_ColorBLACK));
views::BoxLayout* layout =
new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 2, 0);
layout->set_main_axis_alignment(views::BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
content_view->SetLayoutManager(layout);
views::View* view = new MinimizedHomeView(delegate);
content_view->AddChildView(view);
return content_view;
}
} // namespace athena
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