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
|
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
const TEST_URI = "data:text/html;charset=utf-8,browser_css_color.js";
var {colorUtils} = require("devtools/shared/css/color");
/* global getFixtureColorData */
loadHelperScript("helper_color_data.js");
add_task(function* () {
yield addTab("about:blank");
let [host,, doc] = yield createHost("bottom", TEST_URI);
info("Creating a test canvas element to test colors");
let canvas = createTestCanvas(doc);
info("Starting the test");
testColorUtils(canvas);
host.destroy();
gBrowser.removeCurrentTab();
});
function createTestCanvas(doc) {
let canvas = doc.createElement("canvas");
canvas.width = canvas.height = 10;
doc.body.appendChild(canvas);
return canvas;
}
function testColorUtils(canvas) {
let data = getFixtureColorData();
for (let {authored, name, hex, hsl, rgb} of data) {
let color = new colorUtils.CssColor(authored);
// Check all values.
info("Checking values for " + authored);
is(color.name, name, "color.name === name");
is(color.hex, hex, "color.hex === hex");
is(color.hsl, hsl, "color.hsl === hsl");
is(color.rgb, rgb, "color.rgb === rgb");
testToString(color, name, hex, hsl, rgb);
testColorMatch(name, hex, hsl, rgb, color.rgba, canvas);
}
testSetAlpha();
}
function testToString(color, name, hex, hsl, rgb) {
color.colorUnit = colorUtils.CssColor.COLORUNIT.name;
is(color.toString(), name, "toString() with authored type");
color.colorUnit = colorUtils.CssColor.COLORUNIT.hex;
is(color.toString(), hex, "toString() with hex type");
color.colorUnit = colorUtils.CssColor.COLORUNIT.hsl;
is(color.toString(), hsl, "toString() with hsl type");
color.colorUnit = colorUtils.CssColor.COLORUNIT.rgb;
is(color.toString(), rgb, "toString() with rgb type");
}
function testColorMatch(name, hex, hsl, rgb, rgba, canvas) {
let target;
let ctx = canvas.getContext("2d");
let clearCanvas = function () {
canvas.width = 1;
};
let setColor = function (color) {
ctx.fillStyle = color;
ctx.fillRect(0, 0, 1, 1);
};
let setTargetColor = function () {
clearCanvas();
// All colors have rgba so we can use this to compare against.
setColor(rgba);
let [r, g, b, a] = ctx.getImageData(0, 0, 1, 1).data;
target = {r: r, g: g, b: b, a: a};
};
let test = function (color, type) {
// hsla -> rgba -> hsla produces inaccurate results so we
// need some tolerence here.
let tolerance = 3;
clearCanvas();
setColor(color);
let [r, g, b, a] = ctx.getImageData(0, 0, 1, 1).data;
let rgbFail = Math.abs(r - target.r) > tolerance ||
Math.abs(g - target.g) > tolerance ||
Math.abs(b - target.b) > tolerance;
ok(!rgbFail, "color " + rgba + " matches target. Type: " + type);
if (rgbFail) {
info(`target: ${target.toSource()}, color: [r: ${r}, g: ${g}, b: ${b}, a: ${a}]`);
}
let alphaFail = a !== target.a;
ok(!alphaFail, "color " + rgba + " alpha value matches target.");
};
setTargetColor();
test(name, "name");
test(hex, "hex");
test(hsl, "hsl");
test(rgb, "rgb");
}
function testSetAlpha() {
let values = [
["longhex", "#ff0000", 0.5, "rgba(255, 0, 0, 0.5)"],
["hex", "#f0f", 0.2, "rgba(255, 0, 255, 0.2)"],
["rgba", "rgba(120, 34, 23, 1)", 0.25, "rgba(120, 34, 23, 0.25)"],
["rgb", "rgb(120, 34, 23)", 0.25, "rgba(120, 34, 23, 0.25)"],
["hsl", "hsl(208, 100%, 97%)", 0.75, "rgba(240, 248, 255, 0.75)"],
["hsla", "hsla(208, 100%, 97%, 1)", 0.75, "rgba(240, 248, 255, 0.75)"],
["alphahex", "#f08f", 0.6, "rgba(255, 0, 136, 0.6)"],
["longalphahex", "#00ff80ff", 0.2, "rgba(0, 255, 128, 0.2)"]
];
values.forEach(([type, value, alpha, expected]) => {
is(colorUtils.setAlpha(value, alpha), expected,
"correctly sets alpha value for " + type);
});
try {
colorUtils.setAlpha("rgb(24, 25%, 45, 1)", 1);
ok(false, "Should fail when passing in an invalid color.");
} catch (e) {
ok(true, "Fails when setAlpha receives an invalid color.");
}
is(colorUtils.setAlpha("#fff"), "rgba(255, 255, 255, 1)",
"sets alpha to 1 if invalid.");
}
|
