Implement font-variant-numeric

third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp

 /*
  * Copyright (c) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 BlackBerry Limited. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 187 matching lines @@
     case ThirdWidth:
         m_features.append(twid);
         break;
     case QuarterWidth:
         m_features.append(qwid);
         break;
     case RegularWidth:
         break;
     }
 
+    // font-variant-numeric:
+    static hb_feature_t lnum = createFeature('l', 'n', 'u', 'm', 1);
+    if (description.variantNumeric().numericFigureValue() == FontVariantNumeric::LiningNums)
+        m_features.append(lnum);
+
+    static hb_feature_t onum = createFeature('o', 'n', 'u', 'm', 1);
+    if (description.variantNumeric().numericFigureValue() == FontVariantNumeric::OldstyleNums)
+        m_features.append(onum);
+
+    static hb_feature_t pnum = createFeature('p', 'n', 'u', 'm', 1);
+    if (description.variantNumeric().numericSpacingValue() == FontVariantNumeric::ProportionalNums)
+        m_features.append(pnum);
+    static hb_feature_t tnum = createFeature('t', 'n', 'u', 'm', 1);
+    if (description.variantNumeric().numericSpacingValue() == FontVariantNumeric::TabularNums)
+        m_features.append(tnum);
+
+    static hb_feature_t afrc = createFeature('a', 'f', 'r', 'c', 1);
+    if (description.variantNumeric().numericFractionValue() == FontVariantNumeric::StackedFractions)
+        m_features.append(afrc);
+    static hb_feature_t frac = createFeature('f', 'r', 'a', 'c', 1);
+    if (description.variantNumeric().numericFractionValue() == FontVariantNumeric::DiagonalFractions)
+        m_features.append(frac);
+
+    static hb_feature_t ordn = createFeature('o', 'r', 'd', 'n', 1);
+    if (description.variantNumeric().ordinalValue() == FontVariantNumeric::OrdinalOn)
+        m_features.append(ordn);
+
+    static hb_feature_t zero = createFeature('z', 'e', 'r', 'o', 1);
+    if (description.variantNumeric().slashedZeroValue() == FontVariantNumeric::SlashedZeroOn)
+        m_features.append(zero);
+
+
     FontFeatureSettings* settings = description.featureSettings();
     if (!settings)
         return;
 
     // TODO(drott): crbug.com/450619 Implement feature resolution instead of
     // just appending the font-feature-settings.
     unsigned numFeatures = settings->size();
     for (unsigned i = 0; i < numFeatures; ++i) {
         hb_feature_t feature;
         const AtomicString& tag = settings->at(i).tag();
@@ skipping 449 matching lines @@
     result->m_width = run->m_width;
     result->m_numGlyphs = count;
     ASSERT(result->m_numGlyphs == count); // no overflow
     result->m_hasVerticalOffsets = fontData->platformData().isVerticalAnyUpright();
     result->m_runs.append(run.release());
     return result.release();
 }
 
 
 } // namespace blink