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diff --git a/ui/compositor/layer_unittest.cc b/ui/compositor/layer_unittest.cc
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+// Copyright (c) 2012 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 "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/path_service.h"
+#include "base/string_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/compositor/compositor_observer.h"
+#include "ui/compositor/layer.h"
+#include "ui/compositor/layer_animation_sequence.h"
+#include "ui/compositor/test/test_compositor_host.h"
+#include "ui/gfx/canvas.h"
+#include "ui/gfx/codec/png_codec.h"
+#include "ui/gfx/gfx_paths.h"
+#include "ui/gfx/skia_util.h"
+
+#include "ui/compositor/compositor_setup.h"
+
+namespace ui {
+
+namespace {
+
+// Encodes a bitmap into a PNG and write to disk. Returns true on success. The
+// parent directory does not have to exist.
+bool WritePNGFile(const SkBitmap& bitmap, const FilePath& file_path) {
+ std::vector<unsigned char> png_data;
+ if (gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, true, &png_data) &&
+ file_util::CreateDirectory(file_path.DirName())) {
+ char* data = reinterpret_cast<char*>(&png_data[0]);
+ int size = static_cast<int>(png_data.size());
+ return file_util::WriteFile(file_path, data, size) == size;
+ }
+ return false;
+}
+
+// Reads and decodes a PNG image to a bitmap. Returns true on success. The PNG
+// should have been encoded using |gfx::PNGCodec::Encode|.
+bool ReadPNGFile(const FilePath& file_path, SkBitmap* bitmap) {
+ DCHECK(bitmap);
+ std::string png_data;
+ return file_util::ReadFileToString(file_path, &png_data) &&
+ gfx::PNGCodec::Decode(reinterpret_cast<unsigned char*>(&png_data[0]),
+ png_data.length(),
+ bitmap);
+}
+
+// Compares with a PNG file on disk, and returns true if it is the same as
+// the given image. |ref_img_path| is absolute.
+bool IsSameAsPNGFile(const SkBitmap& gen_bmp, FilePath ref_img_path) {
+ SkBitmap ref_bmp;
+ if (!ReadPNGFile(ref_img_path, &ref_bmp)) {
+ LOG(ERROR) << "Cannot read reference image: " << ref_img_path.value();
+ return false;
+ }
+
+ if (ref_bmp.width() != gen_bmp.width() ||
+ ref_bmp.height() != gen_bmp.height()) {
+ LOG(ERROR)
+ << "Dimensions do not match (Expected) vs (Actual):"
+ << "(" << ref_bmp.width() << "x" << ref_bmp.height()
+ << ") vs. "
+ << "(" << gen_bmp.width() << "x" << gen_bmp.height() << ")";
+ return false;
+ }
+
+ // Compare pixels and create a simple diff image.
+ int diff_pixels_count = 0;
+ SkAutoLockPixels lock_bmp(gen_bmp);
+ SkAutoLockPixels lock_ref_bmp(ref_bmp);
+ // The reference images were saved with no alpha channel. Use the mask to
+ // set alpha to 0.
+ uint32_t kAlphaMask = 0x00FFFFFF;
+ for (int x = 0; x < gen_bmp.width(); ++x) {
+ for (int y = 0; y < gen_bmp.height(); ++y) {
+ if ((*gen_bmp.getAddr32(x, y) & kAlphaMask) !=
+ (*ref_bmp.getAddr32(x, y) & kAlphaMask)) {
+ ++diff_pixels_count;
+ }
+ }
+ }
+
+ if (diff_pixels_count != 0) {
+ LOG(ERROR) << "Images differ by pixel count: " << diff_pixels_count;
+ return false;
+ }
+
+ return true;
+}
+
+// Returns a comma-separated list of the names of |layer|'s children in
+// bottom-to-top stacking order.
+std::string GetLayerChildrenNames(const Layer& layer) {
+ std::string names;
+ for (std::vector<Layer*>::const_iterator it = layer.children().begin();
+ it != layer.children().end(); ++it) {
+ if (!names.empty())
+ names += ",";
+ names += (*it)->name();
+ }
+ return names;
+}
+
+
+// There are three test classes in here that configure the Compositor and
+// Layer's slightly differently:
+// - LayerWithNullDelegateTest uses NullLayerDelegate as the LayerDelegate. This
+// is typically the base class you want to use.
+// - LayerWithDelegateTest uses LayerDelegate on the delegates.
+// - LayerWithRealCompositorTest when a real compositor is required for testing.
+// - Slow because they bring up a window and run the real compositor. This
+// is typically not what you want.
+
+class ColoredLayer : public Layer, public LayerDelegate {
+ public:
+ explicit ColoredLayer(SkColor color)
+ : Layer(LAYER_TEXTURED),
+ color_(color) {
+ set_delegate(this);
+ }
+
+ virtual ~ColoredLayer() { }
+
+ // Overridden from LayerDelegate:
+ virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE {
+ canvas->DrawColor(color_);
+ }
+
+ private:
+ SkColor color_;
+};
+
+class LayerWithRealCompositorTest : public testing::Test {
+ public:
+ LayerWithRealCompositorTest() {
+ if (PathService::Get(gfx::DIR_TEST_DATA, &test_data_directory_)) {
+ test_data_directory_ = test_data_directory_.AppendASCII("compositor");
+ } else {
+ LOG(ERROR) << "Could not open test data directory.";
+ }
+ }
+ virtual ~LayerWithRealCompositorTest() {}
+
+ // Overridden from testing::Test:
+ virtual void SetUp() OVERRIDE {
+ DisableTestCompositor();
+ const gfx::Rect host_bounds(10, 10, 500, 500);
+ window_.reset(TestCompositorHost::Create(host_bounds));
+ window_->Show();
+ }
+
+ virtual void TearDown() OVERRIDE {
+ }
+
+ Compositor* GetCompositor() {
+ return window_->GetCompositor();
+ }
+
+ Layer* CreateLayer(LayerType type) {
+ return new Layer(type);
+ }
+
+ Layer* CreateColorLayer(SkColor color, const gfx::Rect& bounds) {
+ Layer* layer = new ColoredLayer(color);
+ layer->SetBounds(bounds);
+ return layer;
+ }
+
+ Layer* CreateNoTextureLayer(const gfx::Rect& bounds) {
+ Layer* layer = CreateLayer(LAYER_NOT_DRAWN);
+ layer->SetBounds(bounds);
+ return layer;
+ }
+
+ void DrawTree(Layer* root) {
+ GetCompositor()->SetRootLayer(root);
+ GetCompositor()->Draw(false);
+ }
+
+ bool ReadPixels(SkBitmap* bitmap) {
+ return GetCompositor()->ReadPixels(bitmap,
+ gfx::Rect(GetCompositor()->size()));
+ }
+
+ void RunPendingMessages() {
+ MessageLoopForUI::current()->RunAllPending();
+ }
+
+ // Invalidates the entire contents of the layer.
+ void SchedulePaintForLayer(Layer* layer) {
+ layer->SchedulePaint(
+ gfx::Rect(0, 0, layer->bounds().width(), layer->bounds().height()));
+ }
+
+ const FilePath& test_data_directory() const { return test_data_directory_; }
+
+ private:
+ scoped_ptr<TestCompositorHost> window_;
+
+ // The root directory for test files.
+ FilePath test_data_directory_;
+
+ DISALLOW_COPY_AND_ASSIGN(LayerWithRealCompositorTest);
+};
+
+// LayerDelegate that paints colors to the layer.
+class TestLayerDelegate : public LayerDelegate {
+ public:
+ explicit TestLayerDelegate() : color_index_(0) {}
+ virtual ~TestLayerDelegate() {}
+
+ void AddColor(SkColor color) {
+ colors_.push_back(color);
+ }
+
+ const gfx::Size& paint_size() const { return paint_size_; }
+ int color_index() const { return color_index_; }
+
+ // Overridden from LayerDelegate:
+ virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE {
+ SkBitmap contents = canvas->ExtractBitmap();
+ paint_size_ = gfx::Size(contents.width(), contents.height());
+ canvas->FillRect(gfx::Rect(paint_size_), colors_[color_index_]);
+ color_index_ = (color_index_ + 1) % static_cast<int>(colors_.size());
+ }
+
+ private:
+ std::vector<SkColor> colors_;
+ int color_index_;
+ gfx::Size paint_size_;
+
+ DISALLOW_COPY_AND_ASSIGN(TestLayerDelegate);
+};
+
+// LayerDelegate that verifies that a layer was asked to update its canvas.
+class DrawTreeLayerDelegate : public LayerDelegate {
+ public:
+ DrawTreeLayerDelegate() : painted_(false) {}
+ virtual ~DrawTreeLayerDelegate() {}
+
+ void Reset() {
+ painted_ = false;
+ }
+
+ bool painted() const { return painted_; }
+
+ private:
+ // Overridden from LayerDelegate:
+ virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE {
+ painted_ = true;
+ }
+
+ bool painted_;
+
+ DISALLOW_COPY_AND_ASSIGN(DrawTreeLayerDelegate);
+};
+
+// The simplest possible layer delegate. Does nothing.
+class NullLayerDelegate : public LayerDelegate {
+ public:
+ NullLayerDelegate() {}
+ virtual ~NullLayerDelegate() {}
+
+ private:
+ // Overridden from LayerDelegate:
+ virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE {
+ }
+
+ DISALLOW_COPY_AND_ASSIGN(NullLayerDelegate);
+};
+
+// Remembers if it has been notified.
+class TestCompositorObserver : public CompositorObserver {
+ public:
+ TestCompositorObserver() : started_(false), ended_(false) {}
+
+ bool notified() const { return started_ && ended_; }
+
+ void Reset() {
+ started_ = false;
+ ended_ = false;
+ }
+
+ private:
+ virtual void OnCompositingStarted(Compositor* compositor) OVERRIDE {
+ started_ = true;
+ }
+
+ virtual void OnCompositingEnded(Compositor* compositor) OVERRIDE {
+ ended_ = true;
+ }
+
+ bool started_;
+ bool ended_;
+
+ DISALLOW_COPY_AND_ASSIGN(TestCompositorObserver);
+};
+
+} // namespace
+
+#if defined(OS_WIN)
+// These are disabled on windows as they don't run correctly on the buildbot.
+// Reenable once we move to the real compositor.
+#define MAYBE_Delegate DISABLED_Delegate
+#define MAYBE_Draw DISABLED_Draw
+#define MAYBE_DrawTree DISABLED_DrawTree
+#define MAYBE_Hierarchy DISABLED_Hierarchy
+#define MAYBE_HierarchyNoTexture DISABLED_HierarchyNoTexture
+#define MAYBE_DrawPixels DISABLED_DrawPixels
+#define MAYBE_SetRootLayer DISABLED_SetRootLayer
+#define MAYBE_CompositorObservers DISABLED_CompositorObservers
+#define MAYBE_ModifyHierarchy DISABLED_ModifyHierarchy
+#define MAYBE_Opacity DISABLED_Opacity
+#else
+#define MAYBE_Delegate DISABLED_Delegate
+#define MAYBE_Draw Draw
+#define MAYBE_DrawTree DISABLED_DrawTree
+#define MAYBE_Hierarchy Hierarchy
+#define MAYBE_HierarchyNoTexture DISABLED_HierarchyNoTexture
+#define MAYBE_DrawPixels DrawPixels
+#define MAYBE_SetRootLayer SetRootLayer
+#define MAYBE_CompositorObservers DISABLED_CompositorObservers
+#define MAYBE_ModifyHierarchy ModifyHierarchy
+#define MAYBE_Opacity Opacity
+#endif
+
+TEST_F(LayerWithRealCompositorTest, MAYBE_Draw) {
+ scoped_ptr<Layer> layer(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 50, 50)));
+ DrawTree(layer.get());
+}
+
+// Create this hierarchy:
+// L1 - red
+// +-- L2 - blue
+// | +-- L3 - yellow
+// +-- L4 - magenta
+//
+TEST_F(LayerWithRealCompositorTest, MAYBE_Hierarchy) {
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 400, 400)));
+ scoped_ptr<Layer> l2(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(10, 10, 350, 350)));
+ scoped_ptr<Layer> l3(CreateColorLayer(SK_ColorYELLOW,
+ gfx::Rect(5, 5, 25, 25)));
+ scoped_ptr<Layer> l4(CreateColorLayer(SK_ColorMAGENTA,
+ gfx::Rect(300, 300, 100, 100)));
+
+ l1->Add(l2.get());
+ l1->Add(l4.get());
+ l2->Add(l3.get());
+
+ DrawTree(l1.get());
+}
+
+class LayerWithDelegateTest : public testing::Test, public CompositorDelegate {
+ public:
+ LayerWithDelegateTest() : schedule_draw_invoked_(false) {}
+ virtual ~LayerWithDelegateTest() {}
+
+ // Overridden from testing::Test:
+ virtual void SetUp() OVERRIDE {
+ ui::SetupTestCompositor();
+ compositor_.reset(new Compositor(
+ this, gfx::kNullAcceleratedWidget, gfx::Size(1000, 1000)));
+ }
+
+ virtual void TearDown() OVERRIDE {
+ }
+
+ Compositor* compositor() { return compositor_.get(); }
+
+ virtual Layer* CreateLayer(LayerType type) {
+ return new Layer(type);
+ }
+
+ Layer* CreateColorLayer(SkColor color, const gfx::Rect& bounds) {
+ Layer* layer = new ColoredLayer(color);
+ layer->SetBounds(bounds);
+ return layer;
+ }
+
+ virtual Layer* CreateNoTextureLayer(const gfx::Rect& bounds) {
+ Layer* layer = CreateLayer(LAYER_NOT_DRAWN);
+ layer->SetBounds(bounds);
+ return layer;
+ }
+
+ void DrawTree(Layer* root) {
+ compositor()->SetRootLayer(root);
+ compositor()->Draw(false);
+ }
+
+ // Invalidates the entire contents of the layer.
+ void SchedulePaintForLayer(Layer* layer) {
+ layer->SchedulePaint(
+ gfx::Rect(0, 0, layer->bounds().width(), layer->bounds().height()));
+ }
+
+ // Invokes DrawTree on the compositor.
+ void Draw() {
+ compositor_->Draw(false);
+ }
+
+ // CompositorDelegate overrides.
+ virtual void ScheduleDraw() OVERRIDE {
+ schedule_draw_invoked_ = true;
+ }
+
+ protected:
+ // Set to true when ScheduleDraw (CompositorDelegate override) is invoked.
+ bool schedule_draw_invoked_;
+
+ private:
+ scoped_ptr<Compositor> compositor_;
+
+ DISALLOW_COPY_AND_ASSIGN(LayerWithDelegateTest);
+};
+
+// L1
+// +-- L2
+TEST_F(LayerWithDelegateTest, ConvertPointToLayer_Simple) {
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 400, 400)));
+ scoped_ptr<Layer> l2(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(10, 10, 350, 350)));
+ l1->Add(l2.get());
+ DrawTree(l1.get());
+
+ gfx::Point point1_in_l2_coords(5, 5);
+ Layer::ConvertPointToLayer(l2.get(), l1.get(), &point1_in_l2_coords);
+ gfx::Point point1_in_l1_coords(15, 15);
+ EXPECT_EQ(point1_in_l1_coords, point1_in_l2_coords);
+
+ gfx::Point point2_in_l1_coords(5, 5);
+ Layer::ConvertPointToLayer(l1.get(), l2.get(), &point2_in_l1_coords);
+ gfx::Point point2_in_l2_coords(-5, -5);
+ EXPECT_EQ(point2_in_l2_coords, point2_in_l1_coords);
+}
+
+// L1
+// +-- L2
+// +-- L3
+TEST_F(LayerWithDelegateTest, ConvertPointToLayer_Medium) {
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 400, 400)));
+ scoped_ptr<Layer> l2(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(10, 10, 350, 350)));
+ scoped_ptr<Layer> l3(CreateColorLayer(SK_ColorYELLOW,
+ gfx::Rect(10, 10, 100, 100)));
+ l1->Add(l2.get());
+ l2->Add(l3.get());
+ DrawTree(l1.get());
+
+ gfx::Point point1_in_l3_coords(5, 5);
+ Layer::ConvertPointToLayer(l3.get(), l1.get(), &point1_in_l3_coords);
+ gfx::Point point1_in_l1_coords(25, 25);
+ EXPECT_EQ(point1_in_l1_coords, point1_in_l3_coords);
+
+ gfx::Point point2_in_l1_coords(5, 5);
+ Layer::ConvertPointToLayer(l1.get(), l3.get(), &point2_in_l1_coords);
+ gfx::Point point2_in_l3_coords(-15, -15);
+ EXPECT_EQ(point2_in_l3_coords, point2_in_l1_coords);
+}
+
+TEST_F(LayerWithRealCompositorTest, MAYBE_Delegate) {
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorBLACK,
+ gfx::Rect(20, 20, 400, 400)));
+ GetCompositor()->SetRootLayer(l1.get());
+ RunPendingMessages();
+
+ TestLayerDelegate delegate;
+ l1->set_delegate(&delegate);
+ delegate.AddColor(SK_ColorWHITE);
+ delegate.AddColor(SK_ColorYELLOW);
+ delegate.AddColor(SK_ColorGREEN);
+
+ l1->SchedulePaint(gfx::Rect(0, 0, 400, 400));
+ RunPendingMessages();
+ EXPECT_EQ(delegate.color_index(), 1);
+ EXPECT_EQ(delegate.paint_size(), l1->bounds().size());
+
+ l1->SchedulePaint(gfx::Rect(10, 10, 200, 200));
+ RunPendingMessages();
+ EXPECT_EQ(delegate.color_index(), 2);
+ EXPECT_EQ(delegate.paint_size(), gfx::Size(200, 200));
+
+ l1->SchedulePaint(gfx::Rect(5, 5, 50, 50));
+ RunPendingMessages();
+ EXPECT_EQ(delegate.color_index(), 0);
+ EXPECT_EQ(delegate.paint_size(), gfx::Size(50, 50));
+}
+
+TEST_F(LayerWithRealCompositorTest, MAYBE_DrawTree) {
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 400, 400)));
+ scoped_ptr<Layer> l2(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(10, 10, 350, 350)));
+ scoped_ptr<Layer> l3(CreateColorLayer(SK_ColorYELLOW,
+ gfx::Rect(10, 10, 100, 100)));
+ l1->Add(l2.get());
+ l2->Add(l3.get());
+
+ GetCompositor()->SetRootLayer(l1.get());
+ RunPendingMessages();
+
+ DrawTreeLayerDelegate d1;
+ l1->set_delegate(&d1);
+ DrawTreeLayerDelegate d2;
+ l2->set_delegate(&d2);
+ DrawTreeLayerDelegate d3;
+ l3->set_delegate(&d3);
+
+ l2->SchedulePaint(gfx::Rect(5, 5, 5, 5));
+ RunPendingMessages();
+ EXPECT_FALSE(d1.painted());
+ EXPECT_TRUE(d2.painted());
+ EXPECT_FALSE(d3.painted());
+}
+
+// Tests no-texture Layers.
+// Create this hierarchy:
+// L1 - red
+// +-- L2 - NO TEXTURE
+// | +-- L3 - yellow
+// +-- L4 - magenta
+//
+TEST_F(LayerWithRealCompositorTest, MAYBE_HierarchyNoTexture) {
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 400, 400)));
+ scoped_ptr<Layer> l2(CreateNoTextureLayer(gfx::Rect(10, 10, 350, 350)));
+ scoped_ptr<Layer> l3(CreateColorLayer(SK_ColorYELLOW,
+ gfx::Rect(5, 5, 25, 25)));
+ scoped_ptr<Layer> l4(CreateColorLayer(SK_ColorMAGENTA,
+ gfx::Rect(300, 300, 100, 100)));
+
+ l1->Add(l2.get());
+ l1->Add(l4.get());
+ l2->Add(l3.get());
+
+ GetCompositor()->SetRootLayer(l1.get());
+ RunPendingMessages();
+
+ DrawTreeLayerDelegate d2;
+ l2->set_delegate(&d2);
+ DrawTreeLayerDelegate d3;
+ l3->set_delegate(&d3);
+
+ l2->SchedulePaint(gfx::Rect(5, 5, 5, 5));
+ l3->SchedulePaint(gfx::Rect(5, 5, 5, 5));
+ RunPendingMessages();
+
+ // |d2| should not have received a paint notification since it has no texture.
+ EXPECT_FALSE(d2.painted());
+ // |d3| should have received a paint notification.
+ EXPECT_TRUE(d3.painted());
+}
+
+class LayerWithNullDelegateTest : public LayerWithDelegateTest {
+ public:
+ LayerWithNullDelegateTest() {}
+ virtual ~LayerWithNullDelegateTest() {}
+
+ // Overridden from testing::Test:
+ virtual void SetUp() OVERRIDE {
+ LayerWithDelegateTest::SetUp();
+ default_layer_delegate_.reset(new NullLayerDelegate());
+ }
+
+ virtual void TearDown() OVERRIDE {
+ }
+
+ Layer* CreateLayer(LayerType type) OVERRIDE {
+ Layer* layer = new Layer(type);
+ layer->set_delegate(default_layer_delegate_.get());
+ return layer;
+ }
+
+ Layer* CreateTextureRootLayer(const gfx::Rect& bounds) {
+ Layer* layer = CreateTextureLayer(bounds);
+ compositor()->SetRootLayer(layer);
+ return layer;
+ }
+
+ Layer* CreateTextureLayer(const gfx::Rect& bounds) {
+ Layer* layer = CreateLayer(LAYER_TEXTURED);
+ layer->SetBounds(bounds);
+ return layer;
+ }
+
+ Layer* CreateNoTextureLayer(const gfx::Rect& bounds) OVERRIDE {
+ Layer* layer = CreateLayer(LAYER_NOT_DRAWN);
+ layer->SetBounds(bounds);
+ return layer;
+ }
+
+ void RunPendingMessages() {
+ MessageLoopForUI::current()->RunAllPending();
+ }
+
+ private:
+ scoped_ptr<NullLayerDelegate> default_layer_delegate_;
+
+ DISALLOW_COPY_AND_ASSIGN(LayerWithNullDelegateTest);
+};
+
+// Various visibile/drawn assertions.
+TEST_F(LayerWithNullDelegateTest, Visibility) {
+ scoped_ptr<Layer> l1(new Layer(LAYER_TEXTURED));
+ scoped_ptr<Layer> l2(new Layer(LAYER_TEXTURED));
+ scoped_ptr<Layer> l3(new Layer(LAYER_TEXTURED));
+ l1->Add(l2.get());
+ l2->Add(l3.get());
+
+ NullLayerDelegate delegate;
+ l1->set_delegate(&delegate);
+ l2->set_delegate(&delegate);
+ l3->set_delegate(&delegate);
+
+ // Layers should initially be drawn.
+ EXPECT_TRUE(l1->IsDrawn());
+ EXPECT_TRUE(l2->IsDrawn());
+ EXPECT_TRUE(l3->IsDrawn());
+ EXPECT_EQ(1.f, l1->web_layer().opacity());
+ EXPECT_EQ(1.f, l2->web_layer().opacity());
+ EXPECT_EQ(1.f, l3->web_layer().opacity());
+
+ compositor()->SetRootLayer(l1.get());
+
+ Draw();
+
+ l1->SetVisible(false);
+ EXPECT_FALSE(l1->IsDrawn());
+ EXPECT_FALSE(l2->IsDrawn());
+ EXPECT_FALSE(l3->IsDrawn());
+ EXPECT_EQ(0.f, l1->web_layer().opacity());
+
+ l3->SetVisible(false);
+ EXPECT_FALSE(l1->IsDrawn());
+ EXPECT_FALSE(l2->IsDrawn());
+ EXPECT_FALSE(l3->IsDrawn());
+ EXPECT_EQ(0.f, l3->web_layer().opacity());
+
+ l1->SetVisible(true);
+ EXPECT_TRUE(l1->IsDrawn());
+ EXPECT_TRUE(l2->IsDrawn());
+ EXPECT_FALSE(l3->IsDrawn());
+ EXPECT_EQ(1.f, l1->web_layer().opacity());
+}
+
+// Checks that stacking-related methods behave as advertised.
+TEST_F(LayerWithNullDelegateTest, Stacking) {
+ scoped_ptr<Layer> root(new Layer(LAYER_NOT_DRAWN));
+ scoped_ptr<Layer> l1(new Layer(LAYER_TEXTURED));
+ scoped_ptr<Layer> l2(new Layer(LAYER_TEXTURED));
+ scoped_ptr<Layer> l3(new Layer(LAYER_TEXTURED));
+ l1->set_name("1");
+ l2->set_name("2");
+ l3->set_name("3");
+ root->Add(l3.get());
+ root->Add(l2.get());
+ root->Add(l1.get());
+
+ // Layers' children are stored in bottom-to-top order.
+ EXPECT_EQ("3,2,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackAtTop(l3.get());
+ EXPECT_EQ("2,1,3", GetLayerChildrenNames(*root.get()));
+
+ root->StackAtTop(l1.get());
+ EXPECT_EQ("2,3,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackAtTop(l1.get());
+ EXPECT_EQ("2,3,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackAbove(l2.get(), l3.get());
+ EXPECT_EQ("3,2,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackAbove(l1.get(), l3.get());
+ EXPECT_EQ("3,1,2", GetLayerChildrenNames(*root.get()));
+
+ root->StackAbove(l2.get(), l1.get());
+ EXPECT_EQ("3,1,2", GetLayerChildrenNames(*root.get()));
+
+ root->StackAtBottom(l2.get());
+ EXPECT_EQ("2,3,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackAtBottom(l3.get());
+ EXPECT_EQ("3,2,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackAtBottom(l3.get());
+ EXPECT_EQ("3,2,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackBelow(l2.get(), l3.get());
+ EXPECT_EQ("2,3,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackBelow(l1.get(), l3.get());
+ EXPECT_EQ("2,1,3", GetLayerChildrenNames(*root.get()));
+
+ root->StackBelow(l3.get(), l2.get());
+ EXPECT_EQ("3,2,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackBelow(l3.get(), l2.get());
+ EXPECT_EQ("3,2,1", GetLayerChildrenNames(*root.get()));
+
+ root->StackBelow(l3.get(), l1.get());
+ EXPECT_EQ("2,3,1", GetLayerChildrenNames(*root.get()));
+}
+
+// Verifies SetBounds triggers the appropriate painting/drawing.
+TEST_F(LayerWithNullDelegateTest, SetBoundsSchedulesPaint) {
+ scoped_ptr<Layer> l1(CreateTextureLayer(gfx::Rect(0, 0, 200, 200)));
+ compositor()->SetRootLayer(l1.get());
+
+ Draw();
+
+ schedule_draw_invoked_ = false;
+ l1->SetBounds(gfx::Rect(5, 5, 200, 200));
+
+ // The CompositorDelegate (us) should have been told to draw for a move.
+ EXPECT_TRUE(schedule_draw_invoked_);
+
+ schedule_draw_invoked_ = false;
+ l1->SetBounds(gfx::Rect(5, 5, 100, 100));
+
+ // The CompositorDelegate (us) should have been told to draw for a resize.
+ EXPECT_TRUE(schedule_draw_invoked_);
+}
+
+// Checks that pixels are actually drawn to the screen with a read back.
+TEST_F(LayerWithRealCompositorTest, MAYBE_DrawPixels) {
+ scoped_ptr<Layer> layer(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(0, 0, 500, 500)));
+ scoped_ptr<Layer> layer2(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(0, 0, 500, 10)));
+
+ layer->Add(layer2.get());
+
+ DrawTree(layer.get());
+
+ SkBitmap bitmap;
+ gfx::Size size = GetCompositor()->size();
+ ASSERT_TRUE(GetCompositor()->ReadPixels(&bitmap,
+ gfx::Rect(0, 10,
+ size.width(), size.height() - 10)));
+ ASSERT_FALSE(bitmap.empty());
+
+ SkAutoLockPixels lock(bitmap);
+ bool is_all_red = true;
+ for (int x = 0; is_all_red && x < 500; x++)
+ for (int y = 0; is_all_red && y < 490; y++)
+ is_all_red = is_all_red && (bitmap.getColor(x, y) == SK_ColorRED);
+
+ EXPECT_TRUE(is_all_red);
+}
+
+// Checks the logic around Compositor::SetRootLayer and Layer::SetCompositor.
+TEST_F(LayerWithRealCompositorTest, MAYBE_SetRootLayer) {
+ Compositor* compositor = GetCompositor();
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 400, 400)));
+ scoped_ptr<Layer> l2(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(10, 10, 350, 350)));
+
+ EXPECT_EQ(NULL, l1->GetCompositor());
+ EXPECT_EQ(NULL, l2->GetCompositor());
+
+ compositor->SetRootLayer(l1.get());
+ EXPECT_EQ(compositor, l1->GetCompositor());
+
+ l1->Add(l2.get());
+ EXPECT_EQ(compositor, l2->GetCompositor());
+
+ l1->Remove(l2.get());
+ EXPECT_EQ(NULL, l2->GetCompositor());
+
+ l1->Add(l2.get());
+ EXPECT_EQ(compositor, l2->GetCompositor());
+
+ compositor->SetRootLayer(NULL);
+ EXPECT_EQ(NULL, l1->GetCompositor());
+ EXPECT_EQ(NULL, l2->GetCompositor());
+}
+
+// Checks that compositor observers are notified when:
+// - DrawTree is called,
+// - After ScheduleDraw is called, or
+// - Whenever SetBounds, SetOpacity or SetTransform are called.
+// TODO(vollick): could be reorganized into compositor_unittest.cc
+TEST_F(LayerWithRealCompositorTest, MAYBE_CompositorObservers) {
+ scoped_ptr<Layer> l1(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(20, 20, 400, 400)));
+ scoped_ptr<Layer> l2(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(10, 10, 350, 350)));
+ l1->Add(l2.get());
+ TestCompositorObserver observer;
+ GetCompositor()->AddObserver(&observer);
+
+ // Explicitly called DrawTree should cause the observers to be notified.
+ // NOTE: this call to DrawTree sets l1 to be the compositor's root layer.
+ DrawTree(l1.get());
+ RunPendingMessages();
+ EXPECT_TRUE(observer.notified());
+
+ // As should scheduling a draw and waiting.
+ observer.Reset();
+ l1->ScheduleDraw();
+ RunPendingMessages();
+ EXPECT_TRUE(observer.notified());
+
+ // Moving, but not resizing, a layer should alert the observers.
+ observer.Reset();
+ l2->SetBounds(gfx::Rect(0, 0, 350, 350));
+ RunPendingMessages();
+ EXPECT_TRUE(observer.notified());
+
+ // So should resizing a layer.
+ observer.Reset();
+ l2->SetBounds(gfx::Rect(0, 0, 400, 400));
+ RunPendingMessages();
+ EXPECT_TRUE(observer.notified());
+
+ // Opacity changes should alert the observers.
+ observer.Reset();
+ l2->SetOpacity(0.5f);
+ RunPendingMessages();
+ EXPECT_TRUE(observer.notified());
+
+ // So should setting the opacity back.
+ observer.Reset();
+ l2->SetOpacity(1.0f);
+ RunPendingMessages();
+ EXPECT_TRUE(observer.notified());
+
+ // Setting the transform of a layer should alert the observers.
+ observer.Reset();
+ Transform transform;
+ transform.ConcatTranslate(-200, -200);
+ transform.ConcatRotate(90.0f);
+ transform.ConcatTranslate(200, 200);
+ l2->SetTransform(transform);
+ RunPendingMessages();
+ EXPECT_TRUE(observer.notified());
+
+ GetCompositor()->RemoveObserver(&observer);
+
+ // Opacity changes should no longer alert the removed observer.
+ observer.Reset();
+ l2->SetOpacity(0.5f);
+ RunPendingMessages();
+ EXPECT_FALSE(observer.notified());
+}
+
+// Checks that modifying the hierarchy correctly affects final composite.
+TEST_F(LayerWithRealCompositorTest, MAYBE_ModifyHierarchy) {
+ GetCompositor()->WidgetSizeChanged(gfx::Size(50, 50));
+
+ // l0
+ // +-l11
+ // | +-l21
+ // +-l12
+ scoped_ptr<Layer> l0(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(0, 0, 50, 50)));
+ scoped_ptr<Layer> l11(CreateColorLayer(SK_ColorGREEN,
+ gfx::Rect(0, 0, 25, 25)));
+ scoped_ptr<Layer> l21(CreateColorLayer(SK_ColorMAGENTA,
+ gfx::Rect(0, 0, 15, 15)));
+ scoped_ptr<Layer> l12(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(10, 10, 25, 25)));
+
+ FilePath ref_img1 = test_data_directory().AppendASCII("ModifyHierarchy1.png");
+ FilePath ref_img2 = test_data_directory().AppendASCII("ModifyHierarchy2.png");
+ SkBitmap bitmap;
+
+ l0->Add(l11.get());
+ l11->Add(l21.get());
+ l0->Add(l12.get());
+ DrawTree(l0.get());
+ ASSERT_TRUE(ReadPixels(&bitmap));
+ ASSERT_FALSE(bitmap.empty());
+ // WritePNGFile(bitmap, ref_img1);
+ EXPECT_TRUE(IsSameAsPNGFile(bitmap, ref_img1));
+
+ l0->StackAtTop(l11.get());
+ DrawTree(l0.get());
+ ASSERT_TRUE(ReadPixels(&bitmap));
+ ASSERT_FALSE(bitmap.empty());
+ // WritePNGFile(bitmap, ref_img2);
+ EXPECT_TRUE(IsSameAsPNGFile(bitmap, ref_img2));
+
+ // l11 is already at the front, should have no effect.
+ l0->StackAtTop(l11.get());
+ DrawTree(l0.get());
+ ASSERT_TRUE(ReadPixels(&bitmap));
+ ASSERT_FALSE(bitmap.empty());
+ EXPECT_TRUE(IsSameAsPNGFile(bitmap, ref_img2));
+
+ // l11 is already at the front, should have no effect.
+ l0->StackAbove(l11.get(), l12.get());
+ DrawTree(l0.get());
+ ASSERT_TRUE(ReadPixels(&bitmap));
+ ASSERT_FALSE(bitmap.empty());
+ EXPECT_TRUE(IsSameAsPNGFile(bitmap, ref_img2));
+
+ // should restore to original configuration
+ l0->StackAbove(l12.get(), l11.get());
+ DrawTree(l0.get());
+ ASSERT_TRUE(ReadPixels(&bitmap));
+ ASSERT_FALSE(bitmap.empty());
+ EXPECT_TRUE(IsSameAsPNGFile(bitmap, ref_img1));
+}
+
+// Opacity is rendered correctly.
+// Checks that modifying the hierarchy correctly affects final composite.
+TEST_F(LayerWithRealCompositorTest, MAYBE_Opacity) {
+ GetCompositor()->WidgetSizeChanged(gfx::Size(50, 50));
+
+ // l0
+ // +-l11
+ scoped_ptr<Layer> l0(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(0, 0, 50, 50)));
+ scoped_ptr<Layer> l11(CreateColorLayer(SK_ColorGREEN,
+ gfx::Rect(0, 0, 25, 25)));
+
+ FilePath ref_img = test_data_directory().AppendASCII("Opacity.png");
+
+ l11->SetOpacity(0.75);
+ l0->Add(l11.get());
+ DrawTree(l0.get());
+ SkBitmap bitmap;
+ ASSERT_TRUE(ReadPixels(&bitmap));
+ ASSERT_FALSE(bitmap.empty());
+ // WritePNGFile(bitmap, ref_img);
+ EXPECT_TRUE(IsSameAsPNGFile(bitmap, ref_img));
+}
+
+namespace {
+
+class SchedulePaintLayerDelegate : public LayerDelegate {
+ public:
+ SchedulePaintLayerDelegate() : paint_count_(0), layer_(NULL) {}
+
+ virtual ~SchedulePaintLayerDelegate() {}
+
+ void set_layer(Layer* layer) {
+ layer_ = layer;
+ layer_->set_delegate(this);
+ }
+
+ void SetSchedulePaintRect(const gfx::Rect& rect) {
+ schedule_paint_rect_ = rect;
+ }
+
+ int GetPaintCountAndClear() {
+ int value = paint_count_;
+ paint_count_ = 0;
+ return value;
+ }
+
+ const gfx::Rect& last_clip_rect() const { return last_clip_rect_; }
+
+ private:
+ // Overridden from LayerDelegate:
+ virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE {
+ paint_count_++;
+ if (!schedule_paint_rect_.IsEmpty()) {
+ layer_->SchedulePaint(schedule_paint_rect_);
+ schedule_paint_rect_ = gfx::Rect();
+ }
+ SkRect sk_clip_rect;
+ if (canvas->sk_canvas()->getClipBounds(&sk_clip_rect))
+ last_clip_rect_ = gfx::SkRectToRect(sk_clip_rect);
+ }
+
+ int paint_count_;
+ Layer* layer_;
+ gfx::Rect schedule_paint_rect_;
+ gfx::Rect last_clip_rect_;
+
+ DISALLOW_COPY_AND_ASSIGN(SchedulePaintLayerDelegate);
+};
+
+} // namespace
+
+// Verifies that if SchedulePaint is invoked during painting the layer is still
+// marked dirty.
+TEST_F(LayerWithDelegateTest, SchedulePaintFromOnPaintLayer) {
+ scoped_ptr<Layer> root(CreateColorLayer(SK_ColorRED,
+ gfx::Rect(0, 0, 500, 500)));
+ SchedulePaintLayerDelegate child_delegate;
+ scoped_ptr<Layer> child(CreateColorLayer(SK_ColorBLUE,
+ gfx::Rect(0, 0, 200, 200)));
+ child_delegate.set_layer(child.get());
+
+ root->Add(child.get());
+
+ SchedulePaintForLayer(root.get());
+ DrawTree(root.get());
+ schedule_draw_invoked_ = false;
+ child->SchedulePaint(gfx::Rect(0, 0, 20, 20));
+ child_delegate.GetPaintCountAndClear();
+ EXPECT_TRUE(schedule_draw_invoked_);
+ schedule_draw_invoked_ = false;
+ // Set a rect so that when OnPaintLayer() is invoked SchedulePaint is invoked
+ // again.
+ child_delegate.SetSchedulePaintRect(gfx::Rect(10, 10, 30, 30));
+ DrawTree(root.get());
+ // |child| should have been painted once.
+ EXPECT_EQ(1, child_delegate.GetPaintCountAndClear());
+ // ScheduleDraw() should have been invoked.
+ EXPECT_TRUE(schedule_draw_invoked_);
+ // Because SchedulePaint() was invoked from OnPaintLayer() |child| should
+ // still need to be painted.
+ DrawTree(root.get());
+ EXPECT_EQ(1, child_delegate.GetPaintCountAndClear());
+ EXPECT_TRUE(child_delegate.last_clip_rect().Contains(
+ gfx::Rect(10, 10, 30, 30)));
+}
+
+} // namespace ui