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// Copyright 2015 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 "web/PageOverlay.h"
#include "core/frame/FrameView.h"
#include "core/layout/LayoutView.h"
#include "platform/graphics/Color.h"
#include "platform/graphics/GraphicsContext.h"
#include "platform/graphics/paint/DrawingRecorder.h"
#include "platform/graphics/paint/PaintController.h"
#include "public/platform/Platform.h"
#include "public/platform/WebCanvas.h"
#include "public/platform/WebThread.h"
#include "public/web/WebSettings.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkPaint.h"
#include "web/WebLocalFrameImpl.h"
#include "web/WebViewImpl.h"
#include "web/tests/FrameTestHelpers.h"
using testing::_;
using testing::AtLeast;
using testing::Property;
namespace blink {
namespace {
static const int viewportWidth = 800;
static const int viewportHeight = 600;
// These unit tests cover both PageOverlay and PageOverlayList.
void enableAcceleratedCompositing(WebSettings* settings)
{
settings->setAcceleratedCompositingEnabled(true);
}
void disableAcceleratedCompositing(WebSettings* settings)
{
settings->setAcceleratedCompositingEnabled(false);
}
class PageOverlayTest : public ::testing::Test {
protected:
enum CompositingMode { AcceleratedCompositing, UnacceleratedCompositing };
void initialize(CompositingMode compositingMode)
{
m_helper.initialize(
false /* enableJavascript */, nullptr /* webFrameClient */, nullptr /* webViewClient */,
compositingMode == AcceleratedCompositing ? enableAcceleratedCompositing : disableAcceleratedCompositing);
webViewImpl()->resize(WebSize(viewportWidth, viewportHeight));
webViewImpl()->updateAllLifecyclePhases();
ASSERT_EQ(compositingMode == AcceleratedCompositing, webViewImpl()->isAcceleratedCompositingActive());
}
WebViewImpl* webViewImpl() const { return m_helper.webViewImpl(); }
template <typename OverlayType>
void runPageOverlayTestWithAcceleratedCompositing();
private:
FrameTestHelpers::WebViewHelper m_helper;
};
// PageOverlay that paints a solid color.
class SolidColorOverlay : public PageOverlay::Delegate {
public:
SolidColorOverlay(Color color) : m_color(color) { }
void paintPageOverlay(const PageOverlay& pageOverlay, GraphicsContext& graphicsContext, const WebSize& size) const override
{
if (DrawingRecorder::useCachedDrawingIfPossible(graphicsContext, pageOverlay, DisplayItem::PageOverlay))
return;
FloatRect rect(0, 0, size.width, size.height);
DrawingRecorder drawingRecorder(graphicsContext, pageOverlay, DisplayItem::PageOverlay, rect);
graphicsContext.fillRect(rect, m_color);
}
private:
Color m_color;
};
template <bool(*getter)(), void(*setter)(bool)>
class RuntimeFeatureChange {
public:
RuntimeFeatureChange(bool newValue) : m_oldValue(getter()) { setter(newValue); }
~RuntimeFeatureChange() { setter(m_oldValue); }
private:
bool m_oldValue;
};
class MockCanvas : public SkCanvas {
public:
MockCanvas(int width, int height) : SkCanvas(width, height) { }
MOCK_METHOD2(onDrawRect, void(const SkRect&, const SkPaint&));
};
TEST_F(PageOverlayTest, PageOverlay_AcceleratedCompositing)
{
initialize(AcceleratedCompositing);
webViewImpl()->layerTreeView()->setViewportSize(WebSize(viewportWidth, viewportHeight));
OwnPtr<PageOverlay> pageOverlay = PageOverlay::create(webViewImpl(), new SolidColorOverlay(SK_ColorYELLOW));
pageOverlay->update();
webViewImpl()->updateAllLifecyclePhases();
// Ideally, we would get results from the compositor that showed that this
// page overlay actually winds up getting drawn on top of the rest.
// For now, we just check that the GraphicsLayer will draw the right thing.
MockCanvas canvas(viewportWidth, viewportHeight);
EXPECT_CALL(canvas, onDrawRect(_, _)).Times(AtLeast(0));
EXPECT_CALL(canvas, onDrawRect(SkRect::MakeWH(viewportWidth, viewportHeight), Property(&SkPaint::getColor, SK_ColorYELLOW)));
GraphicsLayer* graphicsLayer = pageOverlay->graphicsLayer();
WebRect rect(0, 0, viewportWidth, viewportHeight);
// Paint the layer with a null canvas to get a display list, and then
// replay that onto the mock canvas for examination.
IntRect intRect = rect;
graphicsLayer->paint(&intRect);
PaintController& paintController = graphicsLayer->getPaintController();
GraphicsContext graphicsContext(paintController);
graphicsContext.beginRecording(intRect);
paintController.paintArtifact().replay(graphicsContext);
graphicsContext.endRecording()->playback(&canvas);
}
} // namespace
} // namespace blink
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