| // 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 <stddef.h> |
| |
| #include "base/memory/ptr_util.h" |
| #include "build/build_config.h" |
| #include "cc/input/scrollbar.h" |
| #include "cc/layers/painted_overlay_scrollbar_layer.h" |
| #include "cc/layers/painted_scrollbar_layer.h" |
| #include "cc/layers/solid_color_layer.h" |
| #include "cc/paint/paint_canvas.h" |
| #include "cc/paint/paint_flags.h" |
| #include "cc/test/layer_tree_pixel_test.h" |
| #include "cc/test/test_in_process_context_provider.h" |
| #include "cc/trees/layer_tree_impl.h" |
| #include "gpu/command_buffer/client/gles2_interface.h" |
| |
| #if !defined(OS_ANDROID) |
| |
| namespace cc { |
| namespace { |
| |
| class LayerTreeHostScrollbarsPixelTest : public LayerTreePixelTest { |
| protected: |
| LayerTreeHostScrollbarsPixelTest() = default; |
| |
| void InitializeSettings(LayerTreeSettings* settings) override { |
| settings->layer_transforms_should_scale_layer_contents = true; |
| } |
| |
| void SetupTree() override { |
| layer_tree_host()->SetDeviceScaleFactor(device_scale_factor_); |
| LayerTreePixelTest::SetupTree(); |
| } |
| |
| float device_scale_factor_ = 1.f; |
| }; |
| |
| class PaintedScrollbar : public Scrollbar { |
| public: |
| ~PaintedScrollbar() override = default; |
| |
| ScrollbarOrientation Orientation() const override { return VERTICAL; } |
| bool IsLeftSideVerticalScrollbar() const override { return false; } |
| gfx::Point Location() const override { return gfx::Point(); } |
| bool IsOverlay() const override { return false; } |
| bool HasThumb() const override { return thumb_; } |
| int ThumbThickness() const override { return rect_.width(); } |
| int ThumbLength() const override { return rect_.height(); } |
| gfx::Rect TrackRect() const override { return rect_; } |
| float ThumbOpacity() const override { return 1.f; } |
| bool NeedsPaintPart(ScrollbarPart part) const override { return true; } |
| void PaintPart(PaintCanvas* canvas, |
| ScrollbarPart part, |
| const gfx::Rect& content_rect) override { |
| PaintFlags flags; |
| flags.setStyle(PaintFlags::kStroke_Style); |
| flags.setStrokeWidth(SkIntToScalar(paint_scale_)); |
| flags.setColor(color_); |
| |
| gfx::Rect inset_rect = content_rect; |
| while (!inset_rect.IsEmpty()) { |
| int big = paint_scale_ + 2; |
| int small = paint_scale_; |
| inset_rect.Inset(big, big, small, small); |
| canvas->drawRect(RectToSkRect(inset_rect), flags); |
| inset_rect.Inset(big, big, small, small); |
| } |
| } |
| bool UsesNinePatchThumbResource() const override { return false; } |
| gfx::Size NinePatchThumbCanvasSize() const override { return gfx::Size(); } |
| gfx::Rect NinePatchThumbAperture() const override { return gfx::Rect(); } |
| |
| void set_paint_scale(int scale) { paint_scale_ = scale; } |
| |
| private: |
| int paint_scale_ = 4; |
| bool thumb_ = false; |
| SkColor color_ = SK_ColorGREEN; |
| gfx::Rect rect_; |
| }; |
| |
| TEST_F(LayerTreeHostScrollbarsPixelTest, NoScale) { |
| scoped_refptr<SolidColorLayer> background = |
| CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE); |
| |
| auto scrollbar = base::MakeUnique<PaintedScrollbar>(); |
| scoped_refptr<PaintedScrollbarLayer> layer = |
| PaintedScrollbarLayer::Create(std::move(scrollbar)); |
| layer->SetIsDrawable(true); |
| layer->SetBounds(gfx::Size(200, 200)); |
| background->AddChild(layer); |
| |
| RunPixelTest(PIXEL_TEST_GL, background, |
| base::FilePath(FILE_PATH_LITERAL("spiral.png"))); |
| } |
| |
| TEST_F(LayerTreeHostScrollbarsPixelTest, DeviceScaleFactor) { |
| // With a device scale of 2, the scrollbar should still be rendered |
| // pixel-perfect, not show scaling artifacts |
| device_scale_factor_ = 2.f; |
| |
| scoped_refptr<SolidColorLayer> background = |
| CreateSolidColorLayer(gfx::Rect(100, 100), SK_ColorWHITE); |
| |
| auto scrollbar = base::MakeUnique<PaintedScrollbar>(); |
| scoped_refptr<PaintedScrollbarLayer> layer = |
| PaintedScrollbarLayer::Create(std::move(scrollbar)); |
| layer->SetIsDrawable(true); |
| layer->SetBounds(gfx::Size(100, 100)); |
| background->AddChild(layer); |
| |
| RunPixelTest(PIXEL_TEST_GL, background, |
| base::FilePath(FILE_PATH_LITERAL("spiral_double_scale.png"))); |
| } |
| |
| TEST_F(LayerTreeHostScrollbarsPixelTest, TransformScale) { |
| scoped_refptr<SolidColorLayer> background = |
| CreateSolidColorLayer(gfx::Rect(200, 200), SK_ColorWHITE); |
| |
| auto scrollbar = base::MakeUnique<PaintedScrollbar>(); |
| scoped_refptr<PaintedScrollbarLayer> layer = |
| PaintedScrollbarLayer::Create(std::move(scrollbar)); |
| layer->SetIsDrawable(true); |
| layer->SetBounds(gfx::Size(100, 100)); |
| background->AddChild(layer); |
| |
| // This has a scale of 2, it should still be rendered pixel-perfect, not show |
| // scaling artifacts |
| gfx::Transform scale_transform; |
| scale_transform.Scale(2.0, 2.0); |
| layer->SetTransform(scale_transform); |
| |
| RunPixelTest(PIXEL_TEST_GL, background, |
| base::FilePath(FILE_PATH_LITERAL("spiral_double_scale.png"))); |
| } |
| |
| TEST_F(LayerTreeHostScrollbarsPixelTest, HugeTransformScale) { |
| scoped_refptr<SolidColorLayer> background = |
| CreateSolidColorLayer(gfx::Rect(400, 400), SK_ColorWHITE); |
| |
| auto scrollbar = base::MakeUnique<PaintedScrollbar>(); |
| scrollbar->set_paint_scale(1); |
| scoped_refptr<PaintedScrollbarLayer> layer = |
| PaintedScrollbarLayer::Create(std::move(scrollbar)); |
| layer->SetIsDrawable(true); |
| layer->SetBounds(gfx::Size(10, 400)); |
| background->AddChild(layer); |
| |
| scoped_refptr<TestInProcessContextProvider> context( |
| new TestInProcessContextProvider(nullptr)); |
| context->BindToCurrentThread(); |
| int max_texture_size = 0; |
| context->ContextGL()->GetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size); |
| |
| // We want a scale that creates a texture taller than the max texture size. If |
| // there's no clamping, the texture will be invalid and we'll just get black. |
| double scale = 64.0; |
| ASSERT_GT(scale * layer->bounds().height(), max_texture_size); |
| |
| // Let's show the bottom right of the layer, so we know the texture wasn't |
| // just cut off. |
| layer->SetPosition( |
| gfx::PointF(-10.f * scale + 400.f, -400.f * scale + 400.f)); |
| |
| gfx::Transform scale_transform; |
| scale_transform.Scale(scale, scale); |
| layer->SetTransform(scale_transform); |
| |
| RunPixelTest(PIXEL_TEST_GL, background, |
| base::FilePath(FILE_PATH_LITERAL("spiral_64_scale.png"))); |
| } |
| |
| class LayerTreeHostOverlayScrollbarsPixelTest |
| : public LayerTreeHostScrollbarsPixelTest { |
| protected: |
| LayerTreeHostOverlayScrollbarsPixelTest() = default; |
| |
| void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override { |
| LayerImpl* layer = host_impl->active_tree()->LayerById(scrollbar_layer_id_); |
| ScrollbarLayerImplBase* scrollbar = layer->ToScrollbarLayer(); |
| scrollbar->SetThumbThicknessScaleFactor(thickness_scale_); |
| } |
| |
| int scrollbar_layer_id_; |
| float thickness_scale_; |
| }; |
| |
| class PaintedOverlayScrollbar : public PaintedScrollbar { |
| public: |
| ~PaintedOverlayScrollbar() override = default; |
| |
| int ThumbThickness() const override { return 15; } |
| int ThumbLength() const override { return 50; } |
| gfx::Rect TrackRect() const override { return gfx::Rect(0, 0, 15, 400); } |
| bool HasThumb() const override { return true; } |
| bool IsOverlay() const override { return true; } |
| void PaintPart(PaintCanvas* canvas, |
| ScrollbarPart part, |
| const gfx::Rect& content_rect) override { |
| // The outside of the rect will be painted with a 1 pixel black, red, then |
| // blue border. The inside will be solid blue. This will allow the test to |
| // ensure that scaling the thumb doesn't scale the border at all. Note |
| // that the inside of the border must be the same color as the center tile |
| // to prevent an interpolation from being applied. |
| PaintFlags flags; |
| flags.setStyle(PaintFlags::kFill_Style); |
| flags.setStrokeWidth(SkIntToScalar(1)); |
| flags.setColor(SK_ColorBLACK); |
| |
| gfx::Rect inset_rect = content_rect; |
| |
| canvas->drawRect(RectToSkRect(inset_rect), flags); |
| |
| flags.setColor(SK_ColorRED); |
| inset_rect.Inset(1, 1); |
| canvas->drawRect(RectToSkRect(inset_rect), flags); |
| |
| flags.setColor(SK_ColorBLUE); |
| inset_rect.Inset(1, 1); |
| canvas->drawRect(RectToSkRect(inset_rect), flags); |
| } |
| bool UsesNinePatchThumbResource() const override { return true; } |
| gfx::Size NinePatchThumbCanvasSize() const override { |
| return gfx::Size(7, 7); |
| } |
| gfx::Rect NinePatchThumbAperture() const override { |
| return gfx::Rect(3, 3, 1, 1); |
| } |
| }; |
| |
| // Simulate increasing the thickness of a painted overlay scrollbar. Ensure that |
| // the scrollbar border remains crisp. |
| TEST_F(LayerTreeHostOverlayScrollbarsPixelTest, NinePatchScrollbarScaledUp) { |
| scoped_refptr<SolidColorLayer> background = |
| CreateSolidColorLayer(gfx::Rect(400, 400), SK_ColorWHITE); |
| |
| auto scrollbar = base::MakeUnique<PaintedOverlayScrollbar>(); |
| scoped_refptr<PaintedOverlayScrollbarLayer> layer = |
| PaintedOverlayScrollbarLayer::Create(std::move(scrollbar)); |
| |
| scrollbar_layer_id_ = layer->id(); |
| thickness_scale_ = 5.f; |
| |
| layer->SetIsDrawable(true); |
| layer->SetBounds(gfx::Size(10, 300)); |
| background->AddChild(layer); |
| |
| layer->SetPosition(gfx::PointF(185, 10)); |
| |
| RunPixelTest( |
| PIXEL_TEST_GL, background, |
| base::FilePath(FILE_PATH_LITERAL("overlay_scrollbar_scaled_up.png"))); |
| } |
| |
| // Simulate decreasing the thickness of a painted overlay scrollbar. Ensure that |
| // the scrollbar border remains crisp. |
| TEST_F(LayerTreeHostOverlayScrollbarsPixelTest, NinePatchScrollbarScaledDown) { |
| scoped_refptr<SolidColorLayer> background = |
| CreateSolidColorLayer(gfx::Rect(400, 400), SK_ColorWHITE); |
| |
| auto scrollbar = base::MakeUnique<PaintedOverlayScrollbar>(); |
| scoped_refptr<PaintedOverlayScrollbarLayer> layer = |
| PaintedOverlayScrollbarLayer::Create(std::move(scrollbar)); |
| |
| scrollbar_layer_id_ = layer->id(); |
| thickness_scale_ = 0.4f; |
| |
| layer->SetIsDrawable(true); |
| layer->SetBounds(gfx::Size(10, 300)); |
| background->AddChild(layer); |
| |
| layer->SetPosition(gfx::PointF(185, 10)); |
| |
| RunPixelTest( |
| PIXEL_TEST_GL, background, |
| base::FilePath(FILE_PATH_LITERAL("overlay_scrollbar_scaled_down.png"))); |
| } |
| |
| } // namespace |
| } // namespace cc |
| |
| #endif // OS_ANDROID |