# All files / src class-toggler.js

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77.78% Branches 28/36
81.82% Functions 27/33
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     /**
     * --------------------------------------------------------------------------
     * CoreUI (v3.3.0): class-toggler.js
     * Licensed under MIT (https://coreui.io/license)
     * --------------------------------------------------------------------------
     */

    import {
      getjQuery,
      typeCheckConfig
    } from './util/index'
    import Data from './dom/data'
    import EventHandler from './dom/event-handler'
    import Manipulator from './dom/manipulator'

    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */

    const NAME = 'class-toggler'
    const VERSION = '3.2.2'
    const DATA_KEY = 'coreui.class-toggler'
    const EVENT_KEY = `.${DATA_KEY}`
    const DATA_API_KEY = '.data-api'

    const DefaultType = {
      addClass: '(null|array|string)',
      breakpoints: '(null|array|string)',
      removeClass: '(null|array|string)',
      responsive: '(null|boolean)',
      target: '(null|string)',
      toggleClass: '(null|array|string)'
    }

    const Default = {
      addClass: null,
      breakpoints: ['', 'sm', 'md', 'lg', 'xl'],
      removeClass: null,
      responsive: false,
      target: 'body',
      toggleClass: null
    }

    const CLASS_NAME_CLASS_TOGGLER = 'c-class-toggler'

    const EVENT_CLASS_ADDED = 'classadded'
    const EVENT_CLASS_REMOVED = 'classremoved'
    const EVENT_CLASS_TOGGLE = 'classtoggle'
    const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`

    const SELECTOR_CLASS_TOGGLER = '.c-class-toggler'

    /**
     * ------------------------------------------------------------------------
     * Class Definition
     * ------------------------------------------------------------------------
     */

    class ClassToggler {
      constructor(element, config) {
        this._element = element
        this._config = this._getConfig(config)

        Data.setData(element, DATA_KEY, this)
      }

      // Getters

      static get VERSION() {
        return VERSION
      }

      static get Default() {
        return Default
      }

      static get DefaultType() {
        return DefaultType
      }

      // Public
      add() {
        const target = this._target()
        const classNames = this._config.addClass.replace(/\s/g, '').split(',')

        classNames.forEach(className => {
          target.classList.add(className)
          this._customEvent(EVENT_CLASS_ADDED, target, true, className)
        })
      }

      remove() {
        const target = this._target()
        const classNames = this._config.removeClass.replace(/\s/g, '').split(',')

        classNames.forEach(className => {
          if (this._config.responsive) {
            this._updateResponsiveClassNames(className).forEach(className => {
              target.classList.remove(className)
              this._customEvent(EVENT_CLASS_REMOVED, target, false, className)
            })
          } else {
            target.classList.remove(className)
            this._customEvent(EVENT_CLASS_REMOVED, target, false, className)
          }
        })
      }

      toggle() {
        const target = this._target()
        const classNames = this._config.toggleClass.replace(/\s/g, '').split(',')

        if (this._config.responsive) {
          classNames.forEach(className => {
            const responsiveClassNames = this._updateResponsiveClassNames(className)

            if (responsiveClassNames.filter(className => target.classList.contains(className)).length) {
              this._updateResponsiveClassNames(className).forEach(className => {
                this._config.removeClass = className
                this.remove()
                this._customEvent(EVENT_CLASS_TOGGLE, target, false, className)
              })
            } else {
              this._config.addClass = className
              this.add()
              this._customEvent(EVENT_CLASS_TOGGLE, target, true, className)
            }
          })
        } else {
          classNames.forEach(className => {
            if (target.classList.contains(className)) {
              this._config.removeClass = className
              this.remove()
              this._customEvent(EVENT_CLASS_TOGGLE, target, false, className)
            } else {
              this._config.addClass = className
              this.add()
              this._customEvent(EVENT_CLASS_TOGGLE, target, true, className)
            }
          })
        }
      }

      class() {
        this._config.toggleClass = this._config.class
        Iif (this._element.getAttribute('responsive')) {
          this._config.responsive = this._element.getAttribute('responsive')
        }

        this.toggle()
      }

      // Private

      _target() {
        Iif (this._config.target === 'body') {
          return document.querySelector(this._config.target)
        }

        Iif (this._config.target === '_parent') {
          return this._element.parentNode
        }

        return document.querySelector(this._config.target)
      }

      _customEvent(eventName, target, add, className) {
        const event = new CustomEvent(eventName, {
          detail: {
            target,
            add,
            className
          }
        })
        target.dispatchEvent(event)
      }

      _breakpoint(className) {
        const { breakpoints } = this._config
        return breakpoints.filter(breakpoint => breakpoint.length > 0).filter(breakpoint => className.includes(breakpoint))[0]
      }

      _breakpoints(className) {
        const { breakpoints } = this._config
        return breakpoints.slice(0, breakpoints.indexOf(breakpoints.filter(breakpoint => breakpoint.length > 0).filter(breakpoint => className.includes(breakpoint))[0]) + 1)
      }

      _updateResponsiveClassNames(className) {
        const bp = this._breakpoint(className)
        return this._breakpoints(className).map(breakpoint => breakpoint.length > 0 ? className.replace(bp, breakpoint) : className.replace(`-${bp}`, breakpoint))
      }

      _includesResponsiveClass(className) {
        return this._updateResponsiveClassNames(className).filter(className => this._config.target.contains(className))
      }

      // Static

      _getConfig(config) {
        config = {
          ...this.constructor.Default,
          ...Manipulator.getDataAttributes(this._element),
          ...config
        }

        typeCheckConfig(
          NAME,
          config,
          this.constructor.DefaultType
        )

        return config
      }

      static classTogglerInterface(element, config) {
        let data = Data.getData(element, DATA_KEY)
        const _config = typeof config === 'object' && config

        if (!data) {
          data = new ClassToggler(element, _config)
        }

        Eif (typeof config === 'string') {
          Iif (typeof data[config] === 'undefined') {
            throw new TypeError(`No method named "${config}"`)
          }

          data[config]()
        }
      }

      static jQueryInterface(config) {
        return this.each(function () {
          ClassToggler.classTogglerInterface(this, config)
        })
      }
    }

    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */

    EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_CLASS_TOGGLER, event => {
      event.preventDefault()
      event.stopPropagation()
      let toggler = event.target

      Iif (!toggler.classList.contains(CLASS_NAME_CLASS_TOGGLER)) {
        toggler = toggler.closest(SELECTOR_CLASS_TOGGLER)
      }

      if (typeof toggler.dataset.addClass !== 'undefined') {
        ClassToggler.classTogglerInterface(toggler, 'add')
      }

      if (typeof toggler.dataset.removeClass !== 'undefined') {
        ClassToggler.classTogglerInterface(toggler, 'remove')
      }

      if (typeof toggler.dataset.toggleClass !== 'undefined') {
        ClassToggler.classTogglerInterface(toggler, 'toggle')
      }

      if (typeof toggler.dataset.class !== 'undefined') {
        ClassToggler.classTogglerInterface(toggler, 'class')
      }
    })

    const $ = getjQuery()

    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     * add .c-class-toggler to jQuery only if jQuery is present
     */

    Iif ($) {
      const JQUERY_NO_CONFLICT = $.fn[NAME]
      $.fn[NAME] = ClassToggler.jQueryInterface
      $.fn[NAME].Constructor = ClassToggler
      $.fn[NAME].noConflict = () => {
        $.fn[NAME] = JQUERY_NO_CONFLICT
        return ClassToggler.jQueryInterface
      }
    }

    export default ClassToggler