429 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			429 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
let AtRule = require('./at-rule')
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let Browsers = require('./browsers')
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let Declaration = require('./declaration')
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let hackAlignContent = require('./hacks/align-content')
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let hackAlignItems = require('./hacks/align-items')
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let hackAlignSelf = require('./hacks/align-self')
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let hackAnimation = require('./hacks/animation')
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let hackAppearance = require('./hacks/appearance')
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let hackAutofill = require('./hacks/autofill')
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let hackBackdropFilter = require('./hacks/backdrop-filter')
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let hackBackgroundClip = require('./hacks/background-clip')
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let hackBackgroundSize = require('./hacks/background-size')
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let hackBlockLogical = require('./hacks/block-logical')
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let hackBorderImage = require('./hacks/border-image')
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let hackBorderRadius = require('./hacks/border-radius')
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let hackBreakProps = require('./hacks/break-props')
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let hackCrossFade = require('./hacks/cross-fade')
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let hackDisplayFlex = require('./hacks/display-flex')
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let hackDisplayGrid = require('./hacks/display-grid')
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let hackFileSelectorButton = require('./hacks/file-selector-button')
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let hackFilter = require('./hacks/filter')
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let hackFilterValue = require('./hacks/filter-value')
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let hackFlex = require('./hacks/flex')
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let hackFlexBasis = require('./hacks/flex-basis')
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let hackFlexDirection = require('./hacks/flex-direction')
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let hackFlexFlow = require('./hacks/flex-flow')
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let hackFlexGrow = require('./hacks/flex-grow')
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let hackFlexShrink = require('./hacks/flex-shrink')
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let hackFlexWrap = require('./hacks/flex-wrap')
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let hackFullscreen = require('./hacks/fullscreen')
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let hackGradient = require('./hacks/gradient')
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let hackGridArea = require('./hacks/grid-area')
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let hackGridColumnAlign = require('./hacks/grid-column-align')
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let hackGridEnd = require('./hacks/grid-end')
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let hackGridRowAlign = require('./hacks/grid-row-align')
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let hackGridRowColumn = require('./hacks/grid-row-column')
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let hackGridRowsColumns = require('./hacks/grid-rows-columns')
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let hackGridStart = require('./hacks/grid-start')
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let hackGridTemplate = require('./hacks/grid-template')
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let hackGridTemplateAreas = require('./hacks/grid-template-areas')
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let hackImageRendering = require('./hacks/image-rendering')
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let hackImageSet = require('./hacks/image-set')
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let hackInlineLogical = require('./hacks/inline-logical')
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let hackIntrinsic = require('./hacks/intrinsic')
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let hackJustifyContent = require('./hacks/justify-content')
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let hackMaskBorder = require('./hacks/mask-border')
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let hackMaskComposite = require('./hacks/mask-composite')
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let hackOrder = require('./hacks/order')
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let hackOverscrollBehavior = require('./hacks/overscroll-behavior')
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let hackPixelated = require('./hacks/pixelated')
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let hackPlaceSelf = require('./hacks/place-self')
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let hackPlaceholder = require('./hacks/placeholder')
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let hackPlaceholderShown = require('./hacks/placeholder-shown')
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let hackPrintColorAdjust = require('./hacks/print-color-adjust')
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let hackTextDecoration = require('./hacks/text-decoration')
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let hackTextDecorationSkipInk = require('./hacks/text-decoration-skip-ink')
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let hackTextEmphasisPosition = require('./hacks/text-emphasis-position')
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let hackTransformDecl = require('./hacks/transform-decl')
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let hackUserSelect = require('./hacks/user-select')
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let hackWritingMode = require('./hacks/writing-mode')
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let Processor = require('./processor')
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let Resolution = require('./resolution')
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let Selector = require('./selector')
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let Supports = require('./supports')
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let Transition = require('./transition')
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let utils = require('./utils')
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let Value = require('./value')
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let vendor = require('./vendor')
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Selector.hack(hackAutofill)
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Selector.hack(hackFullscreen)
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Selector.hack(hackPlaceholder)
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Selector.hack(hackPlaceholderShown)
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Selector.hack(hackFileSelectorButton)
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Declaration.hack(hackFlex)
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Declaration.hack(hackOrder)
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Declaration.hack(hackFilter)
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Declaration.hack(hackGridEnd)
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Declaration.hack(hackAnimation)
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Declaration.hack(hackFlexFlow)
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Declaration.hack(hackFlexGrow)
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Declaration.hack(hackFlexWrap)
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Declaration.hack(hackGridArea)
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Declaration.hack(hackPlaceSelf)
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Declaration.hack(hackGridStart)
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Declaration.hack(hackAlignSelf)
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Declaration.hack(hackAppearance)
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Declaration.hack(hackFlexBasis)
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Declaration.hack(hackMaskBorder)
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Declaration.hack(hackMaskComposite)
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Declaration.hack(hackAlignItems)
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Declaration.hack(hackUserSelect)
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Declaration.hack(hackFlexShrink)
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Declaration.hack(hackBreakProps)
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Declaration.hack(hackWritingMode)
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Declaration.hack(hackBorderImage)
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Declaration.hack(hackAlignContent)
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Declaration.hack(hackBorderRadius)
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Declaration.hack(hackBlockLogical)
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Declaration.hack(hackGridTemplate)
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Declaration.hack(hackInlineLogical)
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Declaration.hack(hackGridRowAlign)
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Declaration.hack(hackTransformDecl)
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Declaration.hack(hackFlexDirection)
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Declaration.hack(hackImageRendering)
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Declaration.hack(hackBackdropFilter)
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Declaration.hack(hackBackgroundClip)
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Declaration.hack(hackTextDecoration)
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Declaration.hack(hackJustifyContent)
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Declaration.hack(hackBackgroundSize)
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Declaration.hack(hackGridRowColumn)
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Declaration.hack(hackGridRowsColumns)
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Declaration.hack(hackGridColumnAlign)
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Declaration.hack(hackOverscrollBehavior)
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Declaration.hack(hackGridTemplateAreas)
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Declaration.hack(hackPrintColorAdjust)
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Declaration.hack(hackTextEmphasisPosition)
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Declaration.hack(hackTextDecorationSkipInk)
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Value.hack(hackGradient)
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Value.hack(hackIntrinsic)
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Value.hack(hackPixelated)
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Value.hack(hackImageSet)
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Value.hack(hackCrossFade)
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Value.hack(hackDisplayFlex)
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Value.hack(hackDisplayGrid)
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Value.hack(hackFilterValue)
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let declsCache = new Map()
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class Prefixes {
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  constructor(data, browsers, options = {}) {
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    this.data = data
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    this.browsers = browsers
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    this.options = options
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    ;[this.add, this.remove] = this.preprocess(this.select(this.data))
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    this.transition = new Transition(this)
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    this.processor = new Processor(this)
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  }
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  /**
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   * Return clone instance to remove all prefixes
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   */
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  cleaner() {
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    if (this.cleanerCache) {
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      return this.cleanerCache
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    }
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    if (this.browsers.selected.length) {
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      let empty = new Browsers(this.browsers.data, [])
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      this.cleanerCache = new Prefixes(this.data, empty, this.options)
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    } else {
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      return this
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    }
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    return this.cleanerCache
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  }
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  /**
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   * Declaration loader with caching
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   */
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  decl(prop) {
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    if (!declsCache.has(prop)) {
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      declsCache.set(prop, Declaration.load(prop))
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    }
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    return declsCache.get(prop)
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  }
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  /**
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   * Group declaration by unprefixed property to check them
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   */
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  group(decl) {
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    let rule = decl.parent
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    let index = rule.index(decl)
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    let { length } = rule.nodes
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    let unprefixed = this.unprefixed(decl.prop)
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    let checker = (step, callback) => {
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      index += step
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      while (index >= 0 && index < length) {
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        let other = rule.nodes[index]
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        if (other.type === 'decl') {
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          if (step === -1 && other.prop === unprefixed) {
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            if (!Browsers.withPrefix(other.value)) {
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              break
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            }
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          }
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          if (this.unprefixed(other.prop) !== unprefixed) {
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            break
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          } else if (callback(other) === true) {
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            return true
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          }
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          if (step === +1 && other.prop === unprefixed) {
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            if (!Browsers.withPrefix(other.value)) {
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              break
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            }
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          }
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        }
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        index += step
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      }
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      return false
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    }
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    return {
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      down(callback) {
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        return checker(+1, callback)
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      },
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      up(callback) {
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        return checker(-1, callback)
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      }
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    }
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  }
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  /**
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   * Normalize prefix for remover
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   */
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  normalize(prop) {
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    return this.decl(prop).normalize(prop)
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  }
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  /**
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   * Return prefixed version of property
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   */
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  prefixed(prop, prefix) {
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    prop = vendor.unprefixed(prop)
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    return this.decl(prop).prefixed(prop, prefix)
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  }
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  /**
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   * Cache prefixes data to fast CSS processing
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   */
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  preprocess(selected) {
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    let add = {
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      '@supports': new Supports(Prefixes, this),
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      'selectors': []
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    }
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    for (let name in selected.add) {
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      let prefixes = selected.add[name]
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      if (name === '@keyframes' || name === '@viewport') {
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        add[name] = new AtRule(name, prefixes, this)
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      } else if (name === '@resolution') {
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        add[name] = new Resolution(name, prefixes, this)
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      } else if (this.data[name].selector) {
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        add.selectors.push(Selector.load(name, prefixes, this))
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      } else {
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        let props = this.data[name].props
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        if (props) {
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          let value = Value.load(name, prefixes, this)
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          for (let prop of props) {
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            if (!add[prop]) {
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              add[prop] = { values: [] }
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            }
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            add[prop].values.push(value)
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          }
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        } else {
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          let values = (add[name] && add[name].values) || []
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          add[name] = Declaration.load(name, prefixes, this)
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          add[name].values = values
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        }
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      }
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    }
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    let remove = { selectors: [] }
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    for (let name in selected.remove) {
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      let prefixes = selected.remove[name]
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      if (this.data[name].selector) {
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        let selector = Selector.load(name, prefixes)
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        for (let prefix of prefixes) {
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          remove.selectors.push(selector.old(prefix))
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        }
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      } else if (name === '@keyframes' || name === '@viewport') {
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        for (let prefix of prefixes) {
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          let prefixed = `@${prefix}${name.slice(1)}`
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          remove[prefixed] = { remove: true }
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        }
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      } else if (name === '@resolution') {
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        remove[name] = new Resolution(name, prefixes, this)
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      } else {
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        let props = this.data[name].props
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        if (props) {
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          let value = Value.load(name, [], this)
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          for (let prefix of prefixes) {
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            let old = value.old(prefix)
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            if (old) {
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              for (let prop of props) {
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                if (!remove[prop]) {
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                  remove[prop] = {}
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                }
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                if (!remove[prop].values) {
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                  remove[prop].values = []
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                }
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                remove[prop].values.push(old)
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              }
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            }
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          }
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        } else {
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          for (let p of prefixes) {
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            let olds = this.decl(name).old(name, p)
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            if (name === 'align-self') {
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              let a = add[name] && add[name].prefixes
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              if (a) {
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                if (p === '-webkit- 2009' && a.includes('-webkit-')) {
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                  continue
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                } else if (p === '-webkit-' && a.includes('-webkit- 2009')) {
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                  continue
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                }
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              }
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            }
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            for (let prefixed of olds) {
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              if (!remove[prefixed]) {
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                remove[prefixed] = {}
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              }
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              remove[prefixed].remove = true
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            }
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          }
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        }
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      }
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    }
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    return [add, remove]
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  }
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  /**
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   * Select prefixes from data, which is necessary for selected browsers
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   */
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  select(list) {
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    let selected = { add: {}, remove: {} }
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    for (let name in list) {
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      let data = list[name]
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      let add = data.browsers.map(i => {
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        let params = i.split(' ')
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        return {
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          browser: `${params[0]} ${params[1]}`,
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          note: params[2]
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        }
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      })
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      let notes = add
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        .filter(i => i.note)
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        .map(i => `${this.browsers.prefix(i.browser)} ${i.note}`)
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      notes = utils.uniq(notes)
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      add = add
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        .filter(i => this.browsers.isSelected(i.browser))
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        .map(i => {
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          let prefix = this.browsers.prefix(i.browser)
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          if (i.note) {
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            return `${prefix} ${i.note}`
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          } else {
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            return prefix
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          }
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        })
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      add = this.sort(utils.uniq(add))
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      if (this.options.flexbox === 'no-2009') {
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        add = add.filter(i => !i.includes('2009'))
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      }
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      let all = data.browsers.map(i => this.browsers.prefix(i))
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      if (data.mistakes) {
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        all = all.concat(data.mistakes)
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      }
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      all = all.concat(notes)
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      all = utils.uniq(all)
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      if (add.length) {
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        selected.add[name] = add
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        if (add.length < all.length) {
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          selected.remove[name] = all.filter(i => !add.includes(i))
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        }
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      } else {
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        selected.remove[name] = all
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      }
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    }
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    return selected
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  }
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  /**
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   * Sort vendor prefixes
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   */
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  sort(prefixes) {
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    return prefixes.sort((a, b) => {
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      let aLength = utils.removeNote(a).length
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      let bLength = utils.removeNote(b).length
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      if (aLength === bLength) {
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        return b.length - a.length
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      } else {
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        return bLength - aLength
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      }
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    })
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  }
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  /**
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   * Return unprefixed version of property
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   */
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  unprefixed(prop) {
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    let value = this.normalize(vendor.unprefixed(prop))
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    if (value === 'flex-direction') {
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      value = 'flex-flow'
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    }
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    return value
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  }
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  /**
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   * Return values, which must be prefixed in selected property
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   */
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  values(type, prop) {
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    let data = this[type]
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    let global = data['*'] && data['*'].values
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    let values = data[prop] && data[prop].values
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    if (global && values) {
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      return utils.uniq(global.concat(values))
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    } else {
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      return global || values || []
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    }
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  }
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}
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module.exports = Prefixes
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