summaryrefslogtreecommitdiffstats
path: root/layout/reftests/font-features/font-variant-features.js
blob: 56856637398734979f3e0be462004bb7e7f669c1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
// data associated with gsubtest test font for testing font features

// prefix
gPrefix = "";

// equivalent properties
// setting prop: value should match the specific feature settings listed
//
// each of these tests evaluate whether a given feature is enabled as required
// and also whether features that shouldn't be enabled are or not.
var gPropertyData = [
  // font-variant (shorthand)
  // valid values
  { prop: "font-variant", value: "normal", features: {"smcp": 0} },
  { prop: "font-variant", value: "small-caps", features: {"smcp": 1, "c2sc": 0} },
  { prop: "font-variant", value: "none", features: {"liga": 0, "dlig": 0, "clig": 0, "calt": 0, "hlig": 0} },
  { prop: "font-variant", value: "all-small-caps", features: {"smcp": 1, "c2sc": 1, "pcap": 0} },
  { prop: "font-variant", value: "common-ligatures no-discretionary-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0, "calt": 1} },
  { prop: "font-variant", value: "proportional-nums slashed-zero diagonal-fractions oldstyle-nums ordinal", features: {"frac": 1, "afrc": 0, "tnum": 0, "pnum": 1, "onum": 1, "ordn": 1, "zero": 1} },
  { prop: "font-variant", value: "all-small-caps traditional", features: {"smcp": 1, "c2sc": 1, "pcap": 0, "trad": 1, "jp04": 0} },
  { prop: "font-variant", value: "styleset(out-of-bounds1, out-of-bounds2) traditional", features: {"ss00": 0, "ss01": 0, "ss99": 0, "trad": 1} }, // out-of-bounds values but not invalid syntax
  { prop: "font-variant", value: "styleset(ok-alt-a, ok-alt-b) historical-forms", features: {"ss01": 1, "ss02": 0, "ss03": 1, "ss04": 0, "ss05": 1, "ss19": 1, "ss20": 0, "hist": 1, "hlig": 0} },
  { prop: "font-variant", value: "traditional historical-forms styleset(ok-alt-a, ok-alt-b)", features: {"trad": 1, "ss01": 1, "ss02": 0, "ss03": 1, "ss04": 0, "ss05": 1, "ss19": 1, "ss20": 0, "hist": 1, "hlig": 0} },
  { prop: "font-variant", value: "styleset(scope-test2)", features: {"ss23": 0, "ss24": 1, "ss01": 1} },
  { prop: "font-variant", value: "character-variant(scope-test2)", features: {"cv23": 2, "cv24": 0, "cv01": 0} },

  // invalid values
  { prop: "font-variant", value: "normal small-caps", features: {"smcp": 0}, invalid: true },
  { prop: "font-variant", value: "common-ligatures none", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant", value: "none common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant", value: "small-caps potato", features: {"smcp": 0}, invalid: true },
  { prop: "font-variant", value: "common-ligatures traditional no-common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "trad": 0}, invalid: true },
  { prop: "font-variant", value: "common-ligatures traditional common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "trad": 0}, invalid: true },
  { prop: "font-variant", value: "small-caps jis83 all-small-caps", features: {"smcp": 0, "c2sc": 0, "jp83": 0}, invalid: true },
  { prop: "font-variant", value: "lining-nums traditional slashed-zero ordinal normal", features: {"lnum": 0, "onum": 0, "zero": 0, "trad": 0}, invalid: true },
  { prop: "font-variant", value: "diagonal-fractions stacked-fractions", features: {"frac": 0, "afrc": 0}, invalid: true },
  { prop: "font-variant", value: "stacked-fractions diagonal-fractions historical-ligatures", features: {"frac": 0, "afrc": 0, "hlig": 0}, invalid: true },
  { prop: "font-variant", value: "super sub", features: {"subs": 0, "sups": 0}, invalid: true },
  { prop: "font-variant", value: "super historical-ligatures sub", features: {"subs": 0, "sups": 0, "hlig": 0}, invalid: true },
  { prop: "font-variant", value: "annotation(circled) annotation(circled)", features: {"nalt": 0, "lnum": 0, "onum": 0, "pnum": 0}, invalid: true },

  // font-variant-alternates
  // valid values
  { prop: "font-variant-alternates", value: "normal", features: {"salt": 0, "swsh": 0} },
  { prop: "font-variant-alternates", value: "historical-forms", features: {"hist": 1, "hlig": 0} },
  { prop: "font-variant-alternates", value: "styleset(ok-alt-a, ok-alt-b)", features: {"ss01": 1, "ss02": 0, "ss03": 1, "ss04": 0, "ss05": 1, "ss19": 1, "ss20": 0} },
  { prop: "font-variant-alternates", value: "styleset(ok-alt-a, ok-alt-b) historical-forms", features: {"ss01": 1, "ss02": 0, "ss03": 1, "ss04": 0, "ss05": 1, "ss19": 1, "ss20": 0, "hist": 1, "hlig": 0} },
  { prop: "font-variant-alternates", value: "historical-forms styleset(ok-alt-a, ok-alt-b)", features: {"ss01": 1, "ss02": 0, "ss03": 1, "ss04": 0, "ss05": 1, "ss19": 1, "ss20": 0, "hist": 1, "hlig": 0} },
  { prop: "font-variant-alternates", value: "character-variant(ok-1)", features: {"cv78": 2, "cv79": 0, "cv77": 0} },
  { prop: "font-variant-alternates", value: "character-variant(ok-1, ok-3)", features: {"cv78": 2, "cv79": 0, "cv77": 0, "cv23": 1, "cv22": 0, "cv24": 0} },
  { prop: "font-variant-alternates", value: "annotation(circled)", features: {"nalt": 1} },
  { prop: "font-variant-alternates", value: "styleset(out-of-bounds1, out-of-bounds2)", features: {"ss00": 0, "ss01": 0, "ss99": 0} }, // out-of-bounds values but not invalid syntax
  { prop: "font-variant-alternates", value: "styleset(circled)", features: {"nalt": 0, "ss00": 0, "ss01": 0} }, // circled defined for annotation not styleset
  { prop: "font-variant-alternates", value: "styleset(scope-test1)", features: {"ss23": 1, "ss24": 0} },
  { prop: "font-variant-alternates", value: "character-variant(scope-test1)", features: {"cv23": 0, "cv24": 1} },
  { prop: "font-variant-alternates", value: "styleset(scope-test2)", features: {"ss23": 0, "ss24": 1, "ss01": 1} },
  { prop: "font-variant-alternates", value: "character-variant(scope-test2)", features: {"cv23": 2, "cv24": 0, "cv01": 0} },
  { prop: "font-variant-alternates", value: "character-variant(overlap1, overlap2)", features: {"cv23": 2} },
  { prop: "font-variant-alternates", value: "character-variant(overlap2, overlap1)", features: {"cv23": 1} },

  // invalid values
  { prop: "font-variant-alternates", value: "historical-forms normal", features: {"hist": 0}, invalid: true },
  { prop: "font-variant-alternates", value: "historical-forms historical-forms", features: {"hist": 0}, invalid: true },
  { prop: "font-variant-alternates", value: "swash", features: {"swsh": 0}, invalid: true },
  { prop: "font-variant-alternates", value: "swash(3)", features: {"swsh": 0}, invalid: true },
  { prop: "font-variant-alternates", value: "annotation(a, b)", features: {"nalt": 0}, invalid: true },
  { prop: "font-variant-alternates", value: "ornaments(a,b)", features: {"ornm": 0, "nalt": 0}, invalid: true },

  // font-variant-caps
  // valid values
  { prop: "font-variant-caps", value: "normal", features: {"smcp": 0} },
  { prop: "font-variant-caps", value: "small-caps", features: {"smcp": 1, "c2sc": 0} },
  { prop: "font-variant-caps", value: "all-small-caps", features: {"smcp": 1, "c2sc": 1, "pcap": 0} },
  { prop: "font-variant-caps", value: "petite-caps", features: {"pcap": 1, "smcp": 0} },
  { prop: "font-variant-caps", value: "all-petite-caps", features: {"c2pc": 1, "pcap": 1, "smcp": 0} },
  { prop: "font-variant-caps", value: "titling-caps", features: {"titl": 1, "smcp": 0} },
  { prop: "font-variant-caps", value: "unicase", features: {"unic": 1, "titl": 0} },

  // invalid values
  { prop: "font-variant-caps", value: "normal small-caps", features: {"smcp": 0}, invalid: true },
  { prop: "font-variant-caps", value: "small-caps potato", features: {"smcp": 0}, invalid: true },
  { prop: "font-variant-caps", value: "small-caps petite-caps", features: {"smcp": 0, "pcap": 0}, invalid: true },
  { prop: "font-variant-caps", value: "small-caps all-small-caps", features: {"smcp": 0, "c2sc": 0}, invalid: true },
  { prop: "font-variant-caps", value: "small-cap", features: {"smcp": 0}, invalid: true },

  // font-variant-east-asian
  // valid values
  { prop: "font-variant-east-asian", value: "jis78", features: {"jp78": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "jis83", features: {"jp83": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "jis90", features: {"jp90": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "jis04", features: {"jp04": 1, "jp78": 0} },
  { prop: "font-variant-east-asian", value: "simplified", features: {"smpl": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "traditional", features: {"trad": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "full-width", features: {"fwid": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "proportional-width", features: {"pwid": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "ruby", features: {"ruby": 1, "jp04": 0} },
  { prop: "font-variant-east-asian", value: "jis78 full-width", features: {"jp78": 1, "fwid": 1, "jp83": 0} },
  { prop: "font-variant-east-asian", value: "jis78 full-width ruby", features: {"jp78": 1, "fwid": 1, "jp83": 0, "ruby": 1} },
  { prop: "font-variant-east-asian", value: "simplified proportional-width", features: {"smpl": 1, "pwid": 1, "jp83": 0} },
  { prop: "font-variant-east-asian", value: "ruby simplified", features: {"ruby": 1, "smpl": 1, "trad": 0} },

  // invalid values
  { prop: "font-variant-east-asian", value: "ruby normal", features: {"ruby": 0}, invalid: true },
  { prop: "font-variant-east-asian", value: "jis90 jis04", features: {"jp90": 0, "jp04": 0}, invalid: true },
  { prop: "font-variant-east-asian", value: "simplified traditional", features: {"smpl": 0, "trad": 0}, invalid: true },
  { prop: "font-variant-east-asian", value: "full-width proportional-width", features: {"fwid": 0, "pwid": 0}, invalid: true },
  { prop: "font-variant-east-asian", value: "ruby simplified ruby", features: {"ruby": 0, "smpl": 0, "jp04": 0}, invalid: true },
  { prop: "font-variant-east-asian", value: "jis78 ruby simplified", features: {"ruby": 0, "smpl": 0, "jp78": 0}, invalid: true },

  // font-variant-ligatures
  // valid values
  { prop: "font-variant-ligatures", value: "none", features: {"liga": 0, "dlig": 0, "clig": 0, "calt": 0, "hlig": 0} },
  { prop: "font-variant-ligatures", value: "normal", features: {"liga": 1, "dlig": 0} },
  { prop: "font-variant-ligatures", value: "common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "no-common-ligatures", features: {"liga": 0, "clig": 0, "dlig": 0, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "discretionary-ligatures", features: {"liga": 1, "clig": 1, "dlig": 1, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "no-discretionary-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "historical-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 1, "calt": 1} },
  { prop: "font-variant-ligatures", value: "no-historical-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "contextual", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "no-contextual", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0, "calt": 0} },
  { prop: "font-variant-ligatures", value: "common-ligatures no-discretionary-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "historical-ligatures no-common-ligatures", features: {"clig": 0, "liga": 0, "dlig": 0, "hlig": 1, "calt": 1} },
  { prop: "font-variant-ligatures", value: "no-historical-ligatures discretionary-ligatures", features: {"liga": 1, "clig": 1, "dlig": 1, "hlig": 0, "calt": 1} },
  { prop: "font-variant-ligatures", value: "common-ligatures no-discretionary-ligatures historical-ligatures no-contextual", features: {"clig": 1, "dlig": 0, "hlig": 1, "liga": 1, "calt": 0} },

  // invalid values
  { prop: "font-variant-ligatures", value: "common-ligatures none", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "none common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "common-ligatures normal", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "common-ligatures no-common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "common-ligatures common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "no-historical-ligatures historical-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "no-contextual contextual", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "no-discretionary-ligatures discretionary-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },
  { prop: "font-variant-ligatures", value: "common-ligatures no-discretionary-ligatures no-common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0}, invalid: true },

  // font-variant-numeric
  // valid values
  { prop: "font-variant-numeric", value: "normal", features: {"lnum": 0, "tnum": 0, "pnum": 0, "onum": 0} },
  { prop: "font-variant-numeric", value: "lining-nums", features: {"lnum": 1, "onum": 0, "pnum": 0} },
  { prop: "font-variant-numeric", value: "oldstyle-nums", features: {"lnum": 0, "onum": 1, "pnum": 0} },
  { prop: "font-variant-numeric", value: "proportional-nums", features: {"lnum": 0, "onum": 0, "pnum": 1, "tnum": 0} },
  { prop: "font-variant-numeric", value: "proportional-nums oldstyle-nums", features: {"lnum": 0, "onum": 1, "pnum": 1, "tnum": 0} },
  { prop: "font-variant-numeric", value: "tabular-nums", features: {"tnum": 1, "onum": 0, "pnum": 0} },
  { prop: "font-variant-numeric", value: "diagonal-fractions", features: {"frac": 1, "afrc": 0, "pnum": 0} },
  { prop: "font-variant-numeric", value: "stacked-fractions", features: {"frac": 0, "afrc": 1, "pnum": 0} },
  { prop: "font-variant-numeric", value: "slashed-zero", features: {"zero": 1, "pnum": 0} },
  { prop: "font-variant-numeric", value: "ordinal", features: {"ordn": 1, "pnum": 0} },
  { prop: "font-variant-numeric", value: "lining-nums diagonal-fractions", features: {"frac": 1, "afrc": 0, "lnum": 1} },
  { prop: "font-variant-numeric", value: "tabular-nums stacked-fractions", features: {"frac": 0, "afrc": 1, "tnum": 1} },
  { prop: "font-variant-numeric", value: "tabular-nums slashed-zero stacked-fractions", features: {"frac": 0, "afrc": 1, "tnum": 1, "zero": 1} },
  { prop: "font-variant-numeric", value: "proportional-nums slashed-zero diagonal-fractions oldstyle-nums ordinal", features: {"frac": 1, "afrc": 0, "tnum": 0, "pnum": 1, "onum": 1, "ordn": 1, "zero": 1} },

  // invalid values
  { prop: "font-variant-numeric", value: "lining-nums normal", features: {"lnum": 0, "onum": 0}, invalid: true },
  { prop: "font-variant-numeric", value: "lining-nums oldstyle-nums", features: {"lnum": 0, "onum": 0}, invalid: true },
  { prop: "font-variant-numeric", value: "lining-nums normal slashed-zero ordinal", features: {"lnum": 0, "onum": 0, "zero": 0}, invalid: true },
  { prop: "font-variant-numeric", value: "proportional-nums tabular-nums", features: {"pnum": 0, "tnum": 0}, invalid: true },
  { prop: "font-variant-numeric", value: "diagonal-fractions stacked-fractions", features: {"frac": 0, "afrc": 0}, invalid: true },
  { prop: "font-variant-numeric", value: "slashed-zero diagonal-fractions slashed-zero", features: {"frac": 0, "afrc": 0, "zero": 0}, invalid: true },
  { prop: "font-variant-numeric", value: "lining-nums slashed-zero diagonal-fractions oldstyle-nums", features: {"frac": 0, "afrc": 0, "zero": 0, "onum": 0}, invalid: true },

  // font-variant-position
  // valid values
  { prop: "font-variant-position", value: "normal", features: {"subs": 0, "sups": 0} },

  // note: because of fallback, can *only* test activated features here
  { prop: "font-variant-position", value: "super", features: {"sups": 1} },
  { prop: "font-variant-position", value: "sub", features: {"subs": 1} },

  // invalid values
  { prop: "font-variant-position", value: "super sub", features: {"subs": 0, "sups": 0}, invalid: true },
];

// note: the code below requires an array "gFeatures" from :
//   layout/reftests/fonts/gsubtest/gsubtest-features.js

// The font defines feature lookups for all OpenType features for a
// specific set of PUA codepoints, as listed in the gFeatures array.
// Using these codepoints and feature combinations, tests can be
// constructed to detect when certain features are enabled or not.

// return a created table containing tests for a given property
//
// Ex: { prop: "font-variant-ligatures", value: "common-ligatures", features: {"liga": 1, "clig": 1, "dlig": 0, "hlig": 0} }
//
// This means that for the property 'font-variant-ligatures' with the value 'common-ligatures', the features listed should
// either be explicitly enabled or disabled.

// propData is the prop/value list with corresponding feature assertions
// whichProp is either "all" or a specific subproperty (i.e. "font-variant-position")
// isRef is true when this is the reference
// debug outputs the prop/value pair along with the tests

// default PASS codepoint used for reference rendering
// need to use a PUA codepoint to avoid problems related to Freetype auto-hinting
const kRefCodepoint = 0xe00c;

function createFeatureTestTable(propData, whichProp, isRef, debug)
{
  var table = document.createElement("table");

  if (typeof(isRef) == "undefined") {
    isRef = false;
  }

  if (typeof(debug) == "undefined") {
    debug = false;
  }

  var doAll = (whichProp == "all");
  for (var i in propData) {
    var data = propData[i];

    if (!doAll && data.prop != whichProp) continue;

    var row = document.createElement("tr");
    var invalid = false;
    if ("invalid" in data) {
      invalid = true;
      row.className = "invalid";
    }

    var cell = document.createElement("td");
    cell.className = "prop";
    var styledecl = gPrefix + data.prop + ": " + data.value + ";";
    cell.innerHTML = styledecl;
    row.appendChild(cell);
    if (debug) {
      table.appendChild(row);
    }

    row = document.createElement("tr");
    if (invalid) {
      row.className = "invalid";
    }

    cell = document.createElement("td");
    cell.className = "features";
    if (!isRef) {
      cell.style.cssText = styledecl;
    }

    for (var f in data.features) {
      var feature = data.features[f];

      var cp, unsupported = "F".charCodeAt(0);
      var basecp = gFeatures[f];

      if (typeof(basecp) == "undefined") {
        cp = unsupported;
      } else {
        switch(feature) {
        case 0:
          cp = basecp;
          break;
        case 1:
          cp = basecp + 1;
          break;
        case 2:
          cp = basecp + 2;
          break;
        case 3:
          cp = basecp + 3;
          break;
        default:
          cp = basecp + 1;
          break;
        }
      }

      var span = document.createElement("span");
      var cpOut = (isRef ? kRefCodepoint : cp);
      span.innerHTML = "&#x" + cpOut.toString(16) + ";";
      span.title = f + "=" + feature;
      cell.appendChild(span);
    }
    row.appendChild(cell);
    table.appendChild(row);
  }

  return table;
}