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// Copyright 2014 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 "config.h"
#include "core/page/PrintContext.h"
#include "core/dom/Document.h"
#include "core/html/HTMLElement.h"
#include "core/testing/DummyPageHolder.h"
#include "platform/graphics/GraphicsContext.h"
#include "platform/testing/SkiaForCoreTesting.h"
#include "platform/text/TextStream.h"
#include <gtest/gtest.h>
namespace blink {
const int kPageWidth = 800;
const int kPageHeight = 600;
class MockPrintContext : public PrintContext {
public:
MockPrintContext(LocalFrame* frame) : PrintContext(frame) { }
void outputLinkAndLinkedDestinations(GraphicsContext& context, Node* node, const IntRect& pageRect)
{
PrintContext::outputLinkAndLinkedDestinations(context, node, pageRect);
}
};
class MockCanvas : public SkCanvas {
public:
enum OperationType {
DrawRect,
DrawPoint
};
struct Operation {
OperationType type;
SkRect rect;
};
MockCanvas() : SkCanvas(kPageWidth, kPageHeight) { }
virtual void onDrawRect(const SkRect& rect, const SkPaint& paint) override
{
ASSERT_TRUE(paint.getAnnotation());
Operation operation = { DrawRect, rect };
m_recordedOperations.append(operation);
}
virtual void onDrawPoints(PointMode mode, size_t count, const SkPoint pts[], const SkPaint& paint) override
{
ASSERT_EQ(1u, count); // Only called from drawPoint().
ASSERT_TRUE(paint.getAnnotation());
Operation operation = { DrawPoint, SkRect::MakeXYWH(pts[0].x(), pts[0].y(), 0, 0) };
m_recordedOperations.append(operation);
}
const Vector<Operation>& recordedOperations() const { return m_recordedOperations; }
private:
Vector<Operation> m_recordedOperations;
};
class PrintContextTest : public testing::Test {
protected:
PrintContextTest()
: m_pageHolder(DummyPageHolder::create(IntSize(kPageWidth, kPageHeight)))
, m_printContext(adoptPtrWillBeNoop(new MockPrintContext(document().frame()))) { }
Document& document() const { return m_pageHolder->document(); }
MockPrintContext& printContext() { return *m_printContext.get(); }
void setBodyInnerHTML(String bodyContent)
{
document().body()->setInnerHTML(bodyContent, ASSERT_NO_EXCEPTION);
}
void printSinglePage(SkCanvas& canvas)
{
IntRect pageRect(0, 0, kPageWidth, kPageHeight);
GraphicsContext context(&canvas, nullptr);
printContext().begin(kPageWidth, kPageHeight);
printContext().outputLinkAndLinkedDestinations(context, &document(), pageRect);
printContext().end();
}
static String htmlForLink(int x, int y, int width, int height, const char* url)
{
TextStream ts;
ts << "<a style='position: absolute; left: " << x << "px; top: " << y << "px; width: " << width << "px; height: " << height
<< "px' href='" << url << "'>" << url << "</a>";
return ts.release();
}
static String htmlForAnchor(int x, int y, const char* name)
{
TextStream ts;
ts << "<a name='" << name << "' style='position: absolute; left: " << x << "px; top: " << y << "px'>" << name << "</a>";
return ts.release();
}
private:
OwnPtr<DummyPageHolder> m_pageHolder;
OwnPtrWillBePersistent<MockPrintContext> m_printContext;
};
#define EXPECT_SKRECT_EQ(expectedX, expectedY, expectedWidth, expectedHeight, actualRect) \
EXPECT_EQ(expectedX, actualRect.x()); \
EXPECT_EQ(expectedY, actualRect.y()); \
EXPECT_EQ(expectedWidth, actualRect.width()); \
EXPECT_EQ(expectedHeight, actualRect.height());
TEST_F(PrintContextTest, LinkTarget)
{
MockCanvas canvas;
setBodyInnerHTML(htmlForLink(50, 60, 70, 80, "http://www.google.com")
+ htmlForLink(150, 160, 170, 180, "http://www.google.com#fragment"));
printSinglePage(canvas);
const Vector<MockCanvas::Operation>& operations = canvas.recordedOperations();
ASSERT_EQ(2u, operations.size());
// The items in the result can be in any sequence.
size_t firstIndex = operations[0].rect.x() == 50 ? 0 : 1;
EXPECT_EQ(MockCanvas::DrawRect, operations[firstIndex].type);
EXPECT_SKRECT_EQ(50, 60, 70, 80, operations[firstIndex].rect);
// We should also check if the annotation is correct but Skia doesn't export
// SkAnnotation API.
size_t secondIndex = firstIndex == 0 ? 1 : 0;
EXPECT_EQ(MockCanvas::DrawRect, operations[secondIndex].type);
EXPECT_SKRECT_EQ(150, 160, 170, 180, operations[secondIndex].rect);
}
TEST_F(PrintContextTest, LinkedTarget)
{
MockCanvas canvas;
document().setBaseURLOverride(KURL(ParsedURLString, "http://a.com/"));
setBodyInnerHTML(htmlForLink(50, 60, 70, 80, "#fragment") // Generates a Link_Named_Dest_Key annotation
+ htmlForLink(150, 160, 170, 180, "#not-found") // Generates no annotation
+ htmlForAnchor(250, 260, "fragment") // Generates a Define_Named_Dest_Key annotation
+ htmlForAnchor(350, 360, "fragment-not-used")); // Generates no annotation
printSinglePage(canvas);
const Vector<MockCanvas::Operation>& operations = canvas.recordedOperations();
ASSERT_EQ(2u, operations.size());
size_t firstIndex = operations[0].rect.x() == 50 ? 0 : 1;
EXPECT_EQ(MockCanvas::DrawRect, operations[firstIndex].type);
EXPECT_SKRECT_EQ(50, 60, 70, 80, operations[firstIndex].rect);
size_t secondIndex = firstIndex == 0 ? 1 : 0;
EXPECT_EQ(MockCanvas::DrawPoint, operations[secondIndex].type);
EXPECT_SKRECT_EQ(250, 260, 0, 0, operations[secondIndex].rect);
}
} // namespace blink
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