Remove color-normalize dependency

Author: camdecoster

package-lock.json

@@ -75,7 +75,6 @@
     "@turf/meta": "^7.3.5",
     "base64-arraybuffer": "^1.0.2",
     "color": "^5.0.3",
-    "color-normalize": "1.5.0",
     "country-iso-search": "^0.1.1",
     "d3-force": "^1.2.1",
     "d3-format": "^1.4.5",

package.json

@@ -40,6 +40,27 @@ const rgb = (cstr) => {
  */
 const opacity = (cstr) => (cstr ? color(cstr).alpha() : 0);
 
+/**
+ * Convert a color specifier to a 4-element `[r, g, b, a]` representation.
+ *
+ * @param {*} cstr - color specifier
+ * @param {'float'|'uint8'} [type='float'] - `'float'` returns `[r, g, b, a]` in `[0, 1]`;
+ *   `'uint8'` returns a `Uint8Array` in `[0, 255]`.
+ * @return {Number[]|Uint8Array}
+ */
+const normalize = (cstr, type) => {
+    const [r, g, b, a] = color(cstr).rgb().array();
+    if (type === 'uint8') {
+        const out = new Uint8Array(4);
+        out[0] = r;
+        out[1] = g;
+        out[2] = b;
+        out[3] = Math.floor(a * 255);
+        return out;
+    }
+    return [r / 255, g / 255, b / 255, a];
+};
+
 /**
  * Build an `rgba(...)` string from a color and an explicit opacity value.
  *
@@ -265,6 +286,7 @@ module.exports = {
     lightLine,
     mix,
     mostReadable,
+    normalize,
     opacity,
     rgb,
     stroke

src/components/color/index.js

@@ -1,10 +1,10 @@
 'use strict';
 
 var isNumeric = require('fast-isnumeric');
-var rgba = require('color-normalize');
 
 var Colorscale = require('../components/colorscale');
 var Color = require('../components/color');
+var rgba = Color.normalize;
 var colorDflt = require('../components/color/attributes').defaultLine;
 var isArrayOrTypedArray = require('./array').isArrayOrTypedArray;
 

src/lib/gl_format_color.js

@@ -1,6 +1,6 @@
 'use strict';
 
-var rgba = require('color-normalize');
+const { normalize: rgba } = require('../components/color');
 
 function str2RgbaArray(color) {
     if(!color) return [0, 0, 0, 1];

src/lib/str2rgbarray.js

@@ -2,7 +2,7 @@
 
 var isNumeric = require('fast-isnumeric');
 var svgSdf = require('svg-path-sdf');
-var rgba = require('color-normalize');
+const { normalize: rgba } = require('../../components/color');
 
 var Registry = require('../../registry');
 var Lib = require('../../lib');