Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | 6x 3x 6x 34x 1x 33x 7x 2x 1x 1x 5x 5x 5x 25x 25x 13x 3x 10x 12x 12x 12x 11x 24x 22x 22x 40x 40x 40x 17x 17x 23x 21x 25x 19x 2x 20x 39x 39x 59x 59x 59x 37x 37x 22x 21x 38x 29x 1x 38x 6x | type QBemConditionalKeys =
| string
| {
[key: string]: boolean
}
type ClassesInput = QBemConditionalKeys[]
type BlockModifiers = QBemConditionalKeys[] | undefined | null
const QBEM_ERROR_MODIFIER_TYPE_VIOLATION =
'QBem: modifier type violation => modifiers must be strings or objects!'
function throModifierTypeViolationError() {
throw new Error(QBEM_ERROR_MODIFIER_TYPE_VIOLATION)
}
export class QBem {
private _b: string
constructor(block: string) {
if (!block) {
throw new Error('qbem: block name undefined')
}
this._b = block
}
public block(modifiers?: BlockModifiers, ...classes: ClassesInput): string {
if (!modifiers) {
if (!classes.length) {
return this._b
} else {
return `${this._b} ${QBem.classes(...classes)}`
}
}
const outputModifiers = QBem.modifiers(this._b, ...modifiers)
const outputClasses = QBem.classes(...classes)
return [this._b, outputModifiers, outputClasses].filter(Boolean).join(' ')
}
public element(element: string, modifiers?: BlockModifiers, ...classes: ClassesInput): string {
const base = `${this._b}__${element}`
if (!modifiers) {
if (!classes.length) {
return base
} else {
return `${base} ${QBem.classes(...classes)}`
}
}
const outputModifiers = QBem.modifiers(base, ...modifiers)
const outputClasses = QBem.classes(...classes)
return [base, outputModifiers, outputClasses].filter(Boolean).join(' ')
}
public elem(element: string, modifiers?: BlockModifiers, ...classes: ClassesInput): string {
return this.element(element, modifiers, ...classes)
}
public static modifiers(base: string, ...modifiers: QBemConditionalKeys[]) {
if (!modifiers.length) return base
let modified = ''
for (let i = 0; i < modifiers.length; i++) {
const currModifier = modifiers[i]
const modifierType = typeof currModifier
if (modifierType === 'string') {
modified += modified ? ` ${base}--${currModifier}` : `${base}--${currModifier}`
continue
}
if (modifierType === 'object') {
for (const [key, value] of Object.entries(currModifier)) {
if (value === true) {
modified += modified ? ` ${base}--${key}` : `${base}--${key}`
}
}
} else {
throModifierTypeViolationError()
}
}
return modified.trim()
}
public static classes(...classes: ClassesInput) {
let classnames = ''
for (let i = 0; i < classes.length; i++) {
const currClass = classes[i]
const modifierType = typeof currClass
if (modifierType === 'string') {
classnames += classnames ? ` ${currClass}` : currClass
continue
}
if (modifierType === 'object') {
for (const [key, value] of Object.entries(currClass)) {
if (value === true) {
classnames += classnames ? ` ${key}` : key
}
}
} else {
throModifierTypeViolationError()
}
}
return classnames
}
}
export default QBem
|