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// Copyright (c) 2011 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 "ui/views/test/views_test_base.h"
#include "ui/views/widget/widget.h"
#include "views/controls/scrollbar/native_scroll_bar.h"
#include "views/controls/scrollbar/native_scroll_bar_views.h"
#include "views/controls/scrollbar/scroll_bar.h"
namespace {
// The Scrollbar controller. This is the widget that should do the real
// scrolling of contents.
class TestScrollBarController : public views::ScrollBarController {
public:
virtual ~TestScrollBarController() {}
virtual void ScrollToPosition(views::ScrollBar* source,
int position) OVERRIDE {
last_source = source;
last_position = position;
}
virtual int GetScrollIncrement(views::ScrollBar* source,
bool is_page,
bool is_positive) OVERRIDE {
last_source = source;
last_is_page = is_page;
last_is_positive = is_positive;
if (is_page)
return 20;
return 10;
}
// We save the last values in order to assert the corectness of the scroll
// operation.
views::ScrollBar* last_source;
bool last_is_positive;
bool last_is_page;
int last_position;
};
} // namespace
namespace views {
class NativeScrollBarTest : public ViewsTestBase {
public:
NativeScrollBarTest()
: widget_(NULL),
scrollbar_(NULL),
controller_(NULL) {
}
virtual void SetUp() {
Widget::SetPureViews(true);
ViewsTestBase::SetUp();
controller_.reset(new TestScrollBarController());
ASSERT_FALSE(scrollbar_);
native_scrollbar_ = new NativeScrollBar(true);
native_scrollbar_->SetBounds(0, 0, 100, 100);
native_scrollbar_->set_controller(controller_.get());
widget_ = new Widget;
Widget::InitParams params(Widget::InitParams::TYPE_POPUP);
params.bounds = gfx::Rect(0, 0, 100, 100);
widget_->Init(params);
View* container = new View();
widget_->SetContentsView(container);
container->AddChildView(native_scrollbar_);
scrollbar_ =
static_cast<NativeScrollBarViews*>(native_scrollbar_->native_wrapper_);
scrollbar_->SetBounds(0, 0, 100, 100);
scrollbar_->Update(100, 200, 0);
track_size_ = scrollbar_->GetTrackBounds().width();
}
virtual void TearDown() {
widget_->Close();
ViewsTestBase::TearDown();
Widget::SetPureViews(false);
}
protected:
Widget* widget_;
// This is the native scrollbar the Views one wraps around.
NativeScrollBar* native_scrollbar_;
// This is the Views scrollbar.
BaseScrollBar* scrollbar_;
// Keep track of the size of the track. This is how we can tell when we
// scroll to the middle.
int track_size_;
scoped_ptr<TestScrollBarController> controller_;
};
// TODO(dnicoara) Can't run the test on Windows since the scrollbar |Part|
// isn't handled in NativeTheme.
#if defined(OS_WIN)
TEST_F(NativeScrollBarTest, DISABLED_Scrolling) {
#else
TEST_F(NativeScrollBarTest, Scrolling) {
#endif
EXPECT_EQ(scrollbar_->GetPosition(), 0);
EXPECT_EQ(scrollbar_->GetMaxPosition(), 100);
EXPECT_EQ(scrollbar_->GetMinPosition(), 0);
// Scroll to middle.
scrollbar_->ScrollToThumbPosition(track_size_ / 4, false);
EXPECT_EQ(controller_->last_position, 50);
EXPECT_EQ(controller_->last_source, native_scrollbar_);
// Scroll to the end.
scrollbar_->ScrollToThumbPosition(track_size_ / 2, false);
EXPECT_EQ(controller_->last_position, 100);
// Overscroll. Last position should be the maximum position.
scrollbar_->ScrollToThumbPosition(track_size_, false);
EXPECT_EQ(controller_->last_position, 100);
// Underscroll. Last position should be the minimum position.
scrollbar_->ScrollToThumbPosition(-10, false);
EXPECT_EQ(controller_->last_position, 0);
// Test the different fixed scrolling amounts. Generally used by buttons,
// or click on track.
scrollbar_->ScrollToThumbPosition(0, false);
scrollbar_->ScrollByAmount(BaseScrollBar::SCROLL_NEXT_LINE);
EXPECT_EQ(controller_->last_position, 10);
scrollbar_->ScrollByAmount(BaseScrollBar::SCROLL_PREV_LINE);
EXPECT_EQ(controller_->last_position, 0);
scrollbar_->ScrollByAmount(BaseScrollBar::SCROLL_NEXT_PAGE);
EXPECT_EQ(controller_->last_position, 20);
scrollbar_->ScrollByAmount(BaseScrollBar::SCROLL_PREV_PAGE);
EXPECT_EQ(controller_->last_position, 0);
}
} // namespace views
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