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// Copyright 2016 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 "platform/scroll/ScrollbarThemeOverlay.h"
#include "platform/scroll/ScrollbarTestSuite.h"
#include "platform/testing/TestingPlatformSupport.h"
namespace blink {
using testing::NiceMock;
using testing::Return;
using ScrollbarThemeOverlayTest = testing::Test;
TEST_F(ScrollbarThemeOverlayTest, PaintInvalidation) {
ScopedTestingPlatformSupport<TestingPlatformSupportWithMockScheduler>
platform;
NiceMock<MockScrollableArea>* mockScrollableArea =
new NiceMock<MockScrollableArea>(ScrollOffset(100, 100));
ScrollbarThemeOverlay theme(14, 0, ScrollbarThemeOverlay::AllowHitTest);
Scrollbar* verticalScrollbar = Scrollbar::createForTesting(
mockScrollableArea, VerticalScrollbar, RegularScrollbar, &theme);
Scrollbar* horizontalScrollbar = Scrollbar::createForTesting(
mockScrollableArea, HorizontalScrollbar, RegularScrollbar, &theme);
ON_CALL(*mockScrollableArea, verticalScrollbar())
.WillByDefault(Return(verticalScrollbar));
ON_CALL(*mockScrollableArea, horizontalScrollbar())
.WillByDefault(Return(horizontalScrollbar));
IntRect verticalRect(1010, 0, 14, 768);
IntRect horizontalRect(0, 754, 1024, 14);
verticalScrollbar->setFrameRect(verticalRect);
horizontalScrollbar->setFrameRect(horizontalRect);
ASSERT_EQ(verticalScrollbar, mockScrollableArea->verticalScrollbar());
ASSERT_EQ(horizontalScrollbar, mockScrollableArea->horizontalScrollbar());
verticalScrollbar->clearTrackNeedsRepaint();
verticalScrollbar->clearThumbNeedsRepaint();
horizontalScrollbar->clearTrackNeedsRepaint();
horizontalScrollbar->clearThumbNeedsRepaint();
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
ASSERT_FALSE(verticalScrollbar->thumbNeedsRepaint());
ASSERT_FALSE(verticalScrollbar->trackNeedsRepaint());
ASSERT_FALSE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
ASSERT_FALSE(horizontalScrollbar->thumbNeedsRepaint());
ASSERT_FALSE(horizontalScrollbar->trackNeedsRepaint());
ASSERT_FALSE(mockScrollableArea->horizontalScrollbarNeedsPaintInvalidation());
// Changing the scroll offset shouldn't invalide the thumb nor track, but it
// should cause a "general" invalidation for non-composited scrollbars.
// Ensure the horizontal scrollbar is unaffected.
mockScrollableArea->updateScrollOffset(ScrollOffset(0, 5), UserScroll);
verticalScrollbar->offsetDidChange();
horizontalScrollbar->offsetDidChange();
EXPECT_FALSE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_FALSE(verticalScrollbar->trackNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
EXPECT_FALSE(horizontalScrollbar->thumbNeedsRepaint());
EXPECT_FALSE(horizontalScrollbar->trackNeedsRepaint());
EXPECT_FALSE(mockScrollableArea->horizontalScrollbarNeedsPaintInvalidation());
// Try the horizontal scrollbar.
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
mockScrollableArea->updateScrollOffset(ScrollOffset(5, 5), UserScroll);
horizontalScrollbar->offsetDidChange();
verticalScrollbar->offsetDidChange();
EXPECT_FALSE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_FALSE(verticalScrollbar->trackNeedsRepaint());
EXPECT_FALSE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
EXPECT_FALSE(horizontalScrollbar->thumbNeedsRepaint());
EXPECT_FALSE(horizontalScrollbar->trackNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->horizontalScrollbarNeedsPaintInvalidation());
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
// Move the mouse over the vertical scrollbar's thumb. Ensure the thumb is
// invalidated as its state is changed to hover.
verticalScrollbar->setHoveredPart(ThumbPart);
EXPECT_TRUE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
verticalScrollbar->clearThumbNeedsRepaint();
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
// Pressing down should also cause an invalidation.
verticalScrollbar->setPressedPart(ThumbPart);
EXPECT_TRUE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
verticalScrollbar->clearThumbNeedsRepaint();
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
// Release should cause invalidation.
verticalScrollbar->setPressedPart(NoPart);
EXPECT_TRUE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
verticalScrollbar->clearThumbNeedsRepaint();
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
// Move off should cause invalidation
verticalScrollbar->setHoveredPart(NoPart);
EXPECT_TRUE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
verticalScrollbar->clearThumbNeedsRepaint();
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
// Disabling the scrollbar is used to hide it so it should cause invalidation
// but only in the general sense since the compositor will have hidden it
// without a repaint.
verticalScrollbar->setEnabled(false);
EXPECT_FALSE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
mockScrollableArea->clearNeedsPaintInvalidationForScrollControls();
verticalScrollbar->setEnabled(true);
EXPECT_FALSE(verticalScrollbar->thumbNeedsRepaint());
EXPECT_TRUE(mockScrollableArea->verticalScrollbarNeedsPaintInvalidation());
ThreadState::current()->collectAllGarbage();
}
} // namespace blink
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