TEST(ImageCandidateTest, Basic)
{
ImageCandidate candidate;
ASSERT_EQ(candidate.density(), 1);
ASSERT_EQ(candidate.getResourceWidth(), -1);
ASSERT_EQ(candidate.srcOrigin(), false);
}
void HTMLImageElement::setBestFitURLAndDPRFromImageCandidate(const ImageCandidate& candidate)
{
m_bestFitImageURL = candidate.url();
float candidateDensity = candidate.density();
if (candidateDensity >= 0)
m_imageDevicePixelRatio = 1.0 / candidateDensity;
if (renderer() && renderer()->isImage())
toRenderImage(renderer())->setImageDevicePixelRatio(m_imageDevicePixelRatio);
}
void HTMLImageElement::setBestFitURLAndDPRFromImageCandidate(const ImageCandidate& candidate)
{
m_bestFitImageURL = candidate.url();
float candidateDensity = candidate.density();
if (candidateDensity >= 0)
m_imageDevicePixelRatio = 1.0 / candidateDensity;
if (candidate.resourceWidth() > 0) {
m_intrinsicSizingViewportDependant = true;
UseCounter::count(document(), UseCounter::SrcsetWDescriptor);
} else if (!candidate.srcOrigin()) {
UseCounter::count(document(), UseCounter::SrcsetXDescriptor);
}
if (layoutObject() && layoutObject()->isImage())
toLayoutImage(layoutObject())->setImageDevicePixelRatio(m_imageDevicePixelRatio);
}
static bool compareByDensity(const ImageCandidate& first, const ImageCandidate& second)
{
return first.density() < second.density();
}
TEST(HTMLSrcsetParserTest, Basic)
{
TestCase testCases[] = {
{2.0, 0.5, "", "data:,a 1w, data:,b 2x", "data:,a", 2.0, 1},
{2.0, 1, "", "data:,a 2w, data:,b 2x", "data:,a", 2.0, 2},
{2.0, -1, "", "1x.gif 1x, 2x.gif 2x", "2x.gif", 2.0, -1},
{2.0, -1, "", "1x.gif 1q, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "", "1x.gif 1q, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "", "1x.gif 1x 100h, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "", "1x.gif 1x 100w, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "", "1x.gif 1x 100h 100w, 2x.gif 2x", "2x.gif", 2.0, -1},
{2.0, -1, "", "1x.gif 1x, 2x.gif -2x", "1x.gif", 1.0, -1},
{2.0, -1, "", "0x.gif 0x", "0x.gif", 0.0, -1},
{2.0, -1, "", "0x.gif -0x", "0x.gif", 0.0, -1},
{2.0, -1, "", "neg.gif -2x", "", 1.0, -1},
{2.0, -1, "", "1x.gif 1x, 2x.gif 2q", "1x.gif", 1.0, -1},
{2.0, -1, "", "1x.gif, 2x.gif 2q", "1x.gif", 1.0, -1},
{2.0, -1, "", "1x.gif , 2x.gif 2q", "1x.gif", 1.0, -1},
{2.0, -1, "1x.gif 1x, 2x.gif 2x", "1x.gif 1x, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "1x.gif 1x, 2x.gif 2x", "1x.gif 1x, 2x.gif 2x", "1x.gif", 1.0, -1},
{1.0, -1, "1x.gif 1x, 2x.gif 2x", "", "1x.gif 1x, 2x.gif 2x", 1.0, -1},
{2.0, -1, "src.gif", "1x.gif 1x, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "src.gif", "1x.gif 1x, 2x.gif 2x", "1x.gif", 1.0, -1},
{1.0, -1, "src.gif", "2x.gif 2x", "src.gif", 1.0, -1},
{2.0, -1, "src.gif", "2x.gif 2x", "2x.gif", 2.0, -1},
{2.0, -1, "src.gif", "2x.gif 2px", "src.gif", 1.0, -1},
{2.0, -1, "src.gif", "2x.gif 2ex", "src.gif", 1.0, -1},
{10.0, -1, "src.gif", "2x.gif 2e1x", "2x.gif", 20.0, -1},
{2.0, -1, "src.gif", "2x.gif 2e1x", "src.gif", 1.0, -1},
{2.0, -1, "src.gif", "2x.gif +2x", "src.gif", 1.0, -1},
{1.5, -1, "src.gif", "2x.gif 2x", "2x.gif", 2.0, -1},
{2.5, -1, "src.gif", "2x.gif 2x", "2x.gif", 2.0, -1},
{2.5, -1, "src.gif", "2x.gif 2x, 3x.gif 3x", "3x.gif", 3.0, -1},
{2.0, -1, "", "1x,, , x ,2x ", "1x", 1.0, -1},
{2.0, -1, "", "1x,, , x ,2x ", "1x", 1.0, -1},
{2.0, -1, "", ",,1x,, , x ,2x ", "1x", 1.0, -1},
{2.0, -1, "", ",,1x,,", "1x", 1.0, -1},
{2.0, -1, "", ",1x,", "1x", 1.0, -1},
{2.0, -1, "", "data:image/png;base64,iVBORw0KGgoAAAANSUhEUg 1x, 2x.gif 2x", "2x.gif", 2.0, -1},
{2.0, -1, "", "data:image/png;base64,iVBORw0KGgoAAAANSUhEUg 2x, 1x.gif 1x", "data:image/png;base64,iVBORw0KGgoAAAANSUhEUg", 2.0, -1},
{2.0, -1, "", "1x,, , x ,2x , 1x.gif, 3x, 4x.gif 4x 100z, 5x.gif 5, dx.gif dx, 2x.gif 2x ,", "2x.gif", 2.0, -1},
{4.0, -1, "", "1x,, , x ,2x , 1x.gif, 3x, 4x.gif 4x 100h, 5x.gif 5, dx.gif dx, 2x.gif 2x ,", "2x.gif", 2.0, -1},
{4.0, -1, "", "1x,, , x ,2x , 1x.gif, 3x, 4x.gif 4x 100z, 5x.gif 5, dx.gif dx, 2x.gif 2x ,", "2x.gif", 2.0, -1},
{1.0, -1, "", "1x,, , x ,2x , 1x.gif, 3x, 4x.gif 4x 100z, 5x.gif 5, dx.gif dx, 2x.gif 2x ,", "1x", 1.0, -1},
{5.0, -1, "", "1x,, , x ,2x , 1x.gif, 3x, 4x.gif 4x 100z, 5x.gif 5, dx.gif dx, 2x.gif 2x ,", "2x.gif", 2.0, -1},
{2.0, -1, "", "1x.gif 1x, data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIj4KCTxyZWN0IHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIiBmaWxsPSJncmVlbiIvPgo8L3N2Zz4K 2x", "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIj4KCTxyZWN0IHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIiBmaWxsPSJncmVlbiIvPgo8L3N2Zz4K", 2.0, -1 },
{2.0, -1, "1x.gif", "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIj4KCTxyZWN0IHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIiBmaWxsPSJncmVlbiIvPgo8L3N2Zz4K 2x", "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIj4KCTxyZWN0IHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIiBmaWxsPSJncmVlbiIvPgo8L3N2Zz4K", 2.0, -1 },
{2.0, -1, "1x.svg#red", "1x.svg#green 2x", "1x.svg#green", 2.0, -1},
{2.0, -1, "", "1x.svg#red 1x, 1x.svg#green 2x", "1x.svg#green", 2.0, -1},
{1.0, 400, "", "400.gif 400w, 6000.gif 6000w", "400.gif", 1.0, 400},
{1.0, 400, "", "400.gif 400pw, 6000.gif 6000w", "6000.gif", 15.0, 6000},
{1.0, 400, "fallback.gif", "400.gif 400pw", "fallback.gif", 1.0, -1},
{1.0, 400, "fallback.gif", "400.gif +400w", "fallback.gif", 1.0, -1},
{1.0, 400, "", "400.gif 400w 400h, 6000.gif 6000w", "400.gif", 1.0, 400},
{4.0, 400, "", "400.gif 400w, 6000.gif 6000w", "6000.gif", 15.0, 6000},
{3.8, 400, "", "400.gif 400w, 6000.gif 6000w", "400.gif", 1.0, 400},
{0.9, 800, "src.gif", "400.gif 400w", "400.gif", 0.5, 400},
{0.9, 800, "src.gif", "1x.gif 1x, 400.gif 400w", "1x.gif", 1.0, -1},
{0.9, 800, "src.gif", "1x.gif 0.6x, 400.gif 400w", "1x.gif", 0.6, -1},
{0.9, 800, "src.gif", "1x.gif 1x, 400.gif 720w", "400.gif", 0.9, 720},
{0.9, 800, "src.gif", "1x.gif 1x, 400.gif 719w", "1x.gif", 1.0, -1},
{2.0, 800, "src.gif", "400.gif 400w", "400.gif", 0.5, 400},
{1.0, 400, "src.gif", "800.gif 800w", "800.gif", 2.0, 800},
{1.0, 400, "src.gif", "0.gif 0w, 800.gif 800w", "800.gif", 2.0, 800},
{1.0, 400, "src.gif", "0.gif 0w, 2x.gif 2x", "src.gif", 1.0, -1},
{1.0, 400, "src.gif", "800.gif 2x, 1600.gif 1600w", "800.gif", 2.0, -1},
{1.0, 400, "", "400.gif 400w, 2x.gif 2x", "400.gif", 1.0, 400},
{2.0, 400, "", "400.gif 400w, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, 0, "", "400.gif 400w, 6000.gif 6000w", "400.gif", std::numeric_limits<float>::infinity(), 400},
{2.0, -1, "", ", 1x.gif 1x, 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "", ",1x.gif 1x, 2x.gif 2x", "1x.gif", 1.0, -1},
{1.0, -1, "", ",1x.gif 1.x , 2x.gif 2x", "2x.gif", 2.0, -1},
{1.2, -1, "", ",1x.gif 1x, 1.4x.gif 1.4x, 2x.gif 2x", "1.4x.gif", 1.4, -1},
{1.0, -1, "", "inf.gif 0.00000000001x", "inf.gif", 1e-11, -1},
{1.0, -1, "", "data:,a ( , data:,b 1x, ), data:,c", "data:,c", 1.0, -1},
{1.0, 1, "", "data:,a 1w 1h", "data:,a", 1.0, 1},
{1.0, -1, "", ",1x.gif 1x future-descriptor(3x, 4h, whatever), 2x.gif 2x", "2x.gif", 2.0, -1},
{2.0, -1, "", ",1x.gif 1x future-descriptor(3x, 4h, whatever), 2x.gif 2x", "2x.gif", 2.0, -1},
{1.0, -1, "", "data:,a 1 w", "", 1.0, -1},
{1.0, -1, "", "data:,a 1 w", "", 1.0, -1},
{1.0, -1, "", "data:,a +1x", "", 1.0, -1},
{1.0, -1, "", "data:,a +1x", "", 1.0, -1},
{1.0, -1, "", "data:,a 1.0x", "data:,a", 1.0, -1},
{1.0, -1, "", "1%20and%202.gif 1x", "1%20and%202.gif", 1.0, -1},
{1.0, 700, "", "data:,a 0.5x, data:,b 1400w", "data:,b", 2.0, 1400},
{0, 0, 0, 0, 0, 0} // Do not remove the terminator line.
};
for (unsigned i = 0; testCases[i].srcInput; ++i) {
TestCase test = testCases[i];
ImageCandidate candidate = bestFitSourceForImageAttributes(test.deviceScaleFactor, test.effectiveSize, test.srcInput, test.srcsetInput);
ASSERT_EQ(test.outputDensity, candidate.density());
ASSERT_EQ(test.outputResourceWidth, candidate.getResourceWidth());
ASSERT_STREQ(test.outputURL, candidate.toString().ascii().data());
}
}
