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
|
import { convert } from 'chromatism'
import { alphaBlend, getTextColor, rgba2css } from '../color_convert/color_convert.js'
import Underlay from 'src/components/underlay.style.js'
import Panel from 'src/components/panel.style.js'
import PanelHeader from 'src/components/panel_header.style.js'
import Button from 'src/components/button.style.js'
import Text from 'src/components/text.style.js'
import Icon from 'src/components/icon.style.js'
const root = Underlay
const components = {
Underlay,
Panel,
PanelHeader,
Button,
Text,
Icon
}
// This gives you an array of arrays of all possible unique (i.e. order-insensitive) combinations
export const getAllPossibleCombinations = (array) => {
const combos = [array.map(x => [x])]
for (let comboSize = 2; comboSize <= array.length; comboSize++) {
const previous = combos[combos.length - 1]
const selfSet = new Set()
const newCombos = previous.map(self => {
self.forEach(x => selfSet.add(x))
const nonSelf = array.filter(x => !selfSet.has(x))
return nonSelf.map(x => [...self, x])
})
const flatCombos = newCombos.reduce((acc, x) => [...acc, ...x], [])
combos.push(flatCombos)
}
return combos.reduce((acc, x) => [...acc, ...x], [])
}
export const ruleToSelector = (rule) => {
const component = components[rule.component]
const { states, variants, selector } = component
const applicableStates = ((rule.state || []).filter(x => x !== 'normal')).map(state => states[state])
const applicableVariantName = (rule.variant || 'normal')
let applicableVariant = ''
if (applicableVariantName !== 'normal') {
applicableVariant = variants[applicableVariantName]
}
const selectors = [selector, applicableVariant, ...applicableStates]
.toSorted((a, b) => {
if (a.startsWith(':')) return 1
else return -1
})
.join('')
if (rule.parent) {
return ruleToSelector(rule.parent) + ' ' + selectors
}
return selectors
}
export const init = (ruleset) => {
const rootName = root.name
const rules = []
const rulesByComponent = {}
const addRule = (rule) => {
rules.push(rule)
rulesByComponent[rule.component] = rulesByComponent[rule.component] || []
rulesByComponent[rule.component].push(rule)
}
const findRules = (combination) => rule => {
if (combination.component !== rule.component) return false
if (Object.prototype.hasOwnProperty.call(rule, 'variant')) {
if (combination.variant !== rule.variant) return false
} else {
if (combination.variant !== 'normal') return false
}
if (Object.prototype.hasOwnProperty.call(rule, 'state')) {
const ruleStatesSet = new Set(['normal', ...(rule.state || [])])
const combinationSet = new Set(['normal', ...combination.state])
const setsAreEqual = combination.state.every(state => ruleStatesSet.has(state)) &&
[...ruleStatesSet].every(state => combinationSet.has(state))
return setsAreEqual
} else {
if (combination.state.length !== 1 || combination.state[0] !== 'normal') return false
return true
}
}
const findLowerLevelRule = (parent, filter = () => true) => {
let lowerLevelComponent = null
let currentParent = parent
while (currentParent) {
const rulesParent = ruleset.filter(findRules(currentParent, true))
rulesParent > 1 && console.log('OOPS')
lowerLevelComponent = rulesParent[rulesParent.length - 1]
currentParent = currentParent.parent
if (lowerLevelComponent && filter(lowerLevelComponent)) currentParent = null
}
return filter(lowerLevelComponent) ? lowerLevelComponent : null
}
const processInnerComponent = (component, parent) => {
const {
validInnerComponents = [],
states: originalStates = {},
variants: originalVariants = {},
name
} = component
const states = { normal: '', ...originalStates }
const variants = { normal: '', ...originalVariants }
const innerComponents = validInnerComponents.map(name => components[name])
const stateCombinations = getAllPossibleCombinations(Object.keys(states))
const stateVariantCombination = Object.keys(variants).map(variant => {
return stateCombinations.map(state => ({ variant, state }))
}).reduce((acc, x) => [...acc, ...x], [])
const VIRTUAL_COMPONENTS = new Set(['Text', 'Link', 'Icon'])
stateVariantCombination.forEach(combination => {
const existingRules = ruleset.filter(findRules({ component: component.name, ...combination }))
const lastRule = existingRules[existingRules.length - 1]
if (existingRules.length !== 0) {
const { directives } = lastRule
const rgb = convert(directives.background).rgb
// TODO: DEFAULT TEXT COLOR
const bg = findLowerLevelRule(parent)?.cache.background || convert('#FFFFFF').rgb
if (!lastRule.cache?.background) {
const blend = directives.opacity < 1 ? alphaBlend(rgb, directives.opacity, bg) : rgb
lastRule.cache = lastRule.cache || {}
lastRule.cache.background = blend
addRule(lastRule)
}
} else {
if (VIRTUAL_COMPONENTS.has(component.name)) {
const selector = component.name + ruleToSelector({ component: component.name, ...combination })
const lowerLevel = findLowerLevelRule(parent, (r) => {
if (components[r.component].validInnerComponents.indexOf(component.name) < 0) return false
if (r.cache?.background === undefined) return false
if (r.cache.textDefined) {
return !r.cache.textDefined[selector]
}
return true
})
if (!lowerLevel) return
lowerLevel.cache.textDefined = lowerLevel.cache.textDefined || {}
lowerLevel.cache.textDefined[selector] = true
addRule({
parent,
component: component.name,
...combination,
directives: {
// TODO: DEFAULT TEXT COLOR
textColor: getTextColor(convert(lowerLevel.cache.background).rgb, convert('#FFFFFF').rgb, component.name === 'Link'),
// Debug: lets you see what it think background color should be
background: convert(lowerLevel.cache.background).hex
}
})
}
}
innerComponents.forEach(innerComponent => processInnerComponent(innerComponent, { parent, component: name, ...combination }))
})
}
processInnerComponent(components[rootName])
// console.info(rules.map(x => [
// (parent?.component || 'root') + ' -> ' + x.component,
// // 'Cached background:' + convert(bg).hex,
// // 'Color: ' + convert(x.directives.background).hex + ' A:' + x.directives.opacity,
// JSON.stringify(x.directives)
// // '=> Blend: ' + convert(x.cache.background).hex
// ].join(' ')))
return {
raw: rules,
css: rules.map(rule => {
const header = ruleToSelector(rule) + ' {'
const footer = '}'
const directives = Object.entries(rule.directives).map(([k, v]) => {
switch (k) {
case 'background': return 'background-color: ' + rgba2css({ ...convert(v).rgb, a: rule.directives.opacity ?? 1 })
case 'textColor': return 'color: ' + rgba2css({ ...convert(v).rgb, a: rule.directives.opacity ?? 1 })
default: return ''
}
}).filter(x => x).map(x => ' ' + x).join(';\n')
return [header, directives, footer].join('\n')
})
}
}
|
