# All files / src collapse.js

97.19% Statements 173/178
97.8% Branches 89/91
96.3% Functions 26/27
97.18% Lines 172/177

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
    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
    203
    204
    205
    206
    207
    208
    209
    210
    211
    212
    213
    214
    215
    216
    217
    218
    219
    220
    221
    222
    223
    224
    225
    226
    227
    228
    229
    230
    231
    232
    233
    234
    235
    236
    237
    238
    239
    240
    241
    242
    243
    244
    245
    246
    247
    248
    249
    250
    251
    252
    253
    254
    255
    256
    257
    258
    259
    260
    261
    262
    263
    264
    265
    266
    267
    268
    269
    270
    271
    272
    273
    274
    275
    276
    277
    278
    279
    280
    281
    282
    283
    284
    285
    286
    287
    288
    289
    290
    291
    292
    293
    294
    295
    296
    297
    298
    299
    300
    301
    302
    303
    304
    305
    306
    307
    308
    309
    310
    311
    312
    313
    314
    315
    316
    317
    318
    319
    320
    321
    322
    323
    324
    325
    326
    327
    328
    329
    330
    331
    332
    333
    334
    335
    336
    337
    338
    339
    340
    341
    342
    343
    344
    345
    346
    347
    348
    349
    350
    351
    352
    353
    354
    355
    356
    357
    358
    359
    360
    361
    362
    363
    364
    365
    366
    367
    368
    369
    370
    371
    372
    373
    374
    375
    376
    377
    378
    379
    380
    381
    382
    383
    384
    385
    386
    387
    388
    389
    390
    391
    392
    393
    394
    395
    396
    397
    398
    399
    400
    401
    402
    403
    404
    405
    406
    407
    408
    409
    410
    411
    412
    413
    414
    415
    416
    417
    418
    419
    420
    421
    422
    423
    424
    425
    426
    427
    428
    429
    430
    431
    432
    433
    434
    435

    1x
    1x
    1x
    1x
    1x

    1x

    1x

    1x
    1x
    1x
    1x
    1x

    1x
    1x
    1x
    1x

    1x
    1x

    1x
    1x

    48x
    48x
    48x
    48x

    48x

    48x
    60x
    60x
    60x
    73x

    60x
    30x
    30x

    48x

    48x
    26x

    48x
    28x

    48x

    1x

    1x

    33x
    6x

    27x

    32x

    2x

    30x
    15x

    14x
    13x

    1x

    15x
    5x

    30x
    30x
    13x
    10x

    10x

    30x
    30x
    1x

    29x
    10x
    13x
    11x

    13x
    9x

    29x

    29x
    29x

    29x

    29x
    20x
    35x
    35x

    29x

    29x
    29x
    29x

    29x

    29x

    29x

    29x
    29x
    29x

    29x

    29x
    29x

    20x

    4x

    16x
    16x
    1x

    15x

    15x

    15x

    15x
    15x

    15x
    15x
    13x
    26x
    26x

    26x
    25x
    25x

    15x

    15x
    15x
    15x
    15x
    15x

    15x
    15x

    15x
    15x

    88x

    1x

    1x
    1x
    1x
    1x
    1x

    48x

    48x
    48x
    48x

    44x

    24x

    24x

    5x
    2x

    19x

    24x

    24x

    24x

    26x
    17x

    9x

    9x
    20x
    6x

    14x

    20x

    36x
    36x

    36x
    6x

    36x
    28x

    36x
    14x
    1x

    13x

    3x
    3x

    6x

    1x

    17x
    16x

    17x
    17x
    17x

    17x
    22x

    22x

    2x

    2x

    20x

    22x

    1x

    1x

     /**
     * --------------------------------------------------------------------------
     * CoreUI (v3.3.0): collapse.js
     * Licensed under MIT (https://coreui.io/license)
     *
     * This component is a modified version of the Bootstrap's collapse.js
     * Bootstrap (v5.0.0): collapse.js
     * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
     * --------------------------------------------------------------------------
     */

    import {
      getjQuery,
      TRANSITION_END,
      emulateTransitionEnd,
      getSelectorFromElement,
      getElementFromSelector,
      getTransitionDurationFromElement,
      isElement,
      reflow,
      typeCheckConfig
    } from './util/index'
    import Data from './dom/data'
    import EventHandler from './dom/event-handler'
    import Manipulator from './dom/manipulator'
    import SelectorEngine from './dom/selector-engine'

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

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

    const Default = {
      toggle: true,
      parent: ''
    }

    const DefaultType = {
      toggle: 'boolean',
      parent: '(string|element)'
    }

    const EVENT_SHOW = `show${EVENT_KEY}`
    const EVENT_SHOWN = `shown${EVENT_KEY}`
    const EVENT_HIDE = `hide${EVENT_KEY}`
    const EVENT_HIDDEN = `hidden${EVENT_KEY}`
    const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`

    const CLASS_NAME_SHOW = 'show'
    const CLASS_NAME_COLLAPSE = 'collapse'
    const CLASS_NAME_COLLAPSING = 'collapsing'
    const CLASS_NAME_COLLAPSED = 'collapsed'

    const WIDTH = 'width'
    const HEIGHT = 'height'

    const SELECTOR_ACTIVES = '.show, .collapsing'
    const SELECTOR_DATA_TOGGLE = '[data-toggle="collapse"]'

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

    class Collapse {
      constructor(element, config) {
        this._isTransitioning = false
        this._element = element
        this._config = this._getConfig(config)
        this._triggerArray = SelectorEngine.find(
          `${SELECTOR_DATA_TOGGLE}[href="#${element.id}"],` +
          `${SELECTOR_DATA_TOGGLE}[data-target="#${element.id}"]`
        )

        const toggleList = SelectorEngine.find(SELECTOR_DATA_TOGGLE)

        for (let i = 0, len = toggleList.length; i < len; i++) {
          const elem = toggleList[i]
          const selector = getSelectorFromElement(elem)
          const filterElement = SelectorEngine.find(selector)
            .filter(foundElem => foundElem === element)

          if (selector !== null && filterElement.length) {
            this._selector = selector
            this._triggerArray.push(elem)
          }
        }

        this._parent = this._config.parent ? this._getParent() : null

        if (!this._config.parent) {
          this._addAriaAndCollapsedClass(this._element, this._triggerArray)
        }

        if (this._config.toggle) {
          this.toggle()
        }

        Data.setData(element, DATA_KEY, this)
      }

      // Getters

      static get VERSION() {
        return VERSION
      }

      static get Default() {
        return Default
      }

      // Public

      toggle() {
        if (this._element.classList.contains(CLASS_NAME_SHOW)) {
          this.hide()
        } else {
          this.show()
        }
      }

      show() {
        if (this._isTransitioning ||
          this._element.classList.contains(CLASS_NAME_SHOW)) {
          return
        }

        let actives
        let activesData

        if (this._parent) {
          actives = SelectorEngine.find(SELECTOR_ACTIVES, this._parent)
            .filter(elem => {
              if (typeof this._config.parent === 'string') {
                return elem.getAttribute('data-parent') === this._config.parent
              }

              return elem.classList.contains(CLASS_NAME_COLLAPSE)
            })

          if (actives.length === 0) {
            actives = null
          }
        }

        const container = SelectorEngine.findOne(this._selector)
        if (actives) {
          const tempActiveData = actives.filter(elem => container !== elem)
          activesData = tempActiveData[0] ? Data.getData(tempActiveData[0], DATA_KEY) : null

          Iif (activesData && activesData._isTransitioning) {
            return
          }
        }

        const startEvent = EventHandler.trigger(this._element, EVENT_SHOW)
        if (startEvent.defaultPrevented) {
          return
        }

        if (actives) {
          actives.forEach(elemActive => {
            if (container !== elemActive) {
              Collapse.collapseInterface(elemActive, 'hide')
            }

            if (!activesData) {
              Data.setData(elemActive, DATA_KEY, null)
            }
          })
        }

        const dimension = this._getDimension()

        this._element.classList.remove(CLASS_NAME_COLLAPSE)
        this._element.classList.add(CLASS_NAME_COLLAPSING)

        this._element.style[dimension] = 0

        if (this._triggerArray.length) {
          this._triggerArray.forEach(element => {
            element.classList.remove(CLASS_NAME_COLLAPSED)
            element.setAttribute('aria-expanded', true)
          })
        }

        this.setTransitioning(true)

        const complete = () => {
          this._element.classList.remove(CLASS_NAME_COLLAPSING)
          this._element.classList.add(CLASS_NAME_COLLAPSE, CLASS_NAME_SHOW)

          this._element.style[dimension] = ''

          this.setTransitioning(false)

          EventHandler.trigger(this._element, EVENT_SHOWN)
        }

        const capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1)
        const scrollSize = `scroll${capitalizedDimension}`
        const transitionDuration = getTransitionDurationFromElement(this._element)

        EventHandler.one(this._element, TRANSITION_END, complete)

        emulateTransitionEnd(this._element, transitionDuration)
        this._element.style[dimension] = `${this._element[scrollSize]}px`
      }

      hide() {
        if (this._isTransitioning ||
          !this._element.classList.contains(CLASS_NAME_SHOW)) {
          return
        }

        const startEvent = EventHandler.trigger(this._element, EVENT_HIDE)
        if (startEvent.defaultPrevented) {
          return
        }

        const dimension = this._getDimension()

        this._element.style[dimension] = `${this._element.getBoundingClientRect()[dimension]}px`

        reflow(this._element)

        this._element.classList.add(CLASS_NAME_COLLAPSING)
        this._element.classList.remove(CLASS_NAME_COLLAPSE, CLASS_NAME_SHOW)

        const triggerArrayLength = this._triggerArray.length
        if (triggerArrayLength > 0) {
          for (let i = 0; i < triggerArrayLength; i++) {
            const trigger = this._triggerArray[i]
            const elem = getElementFromSelector(trigger)

            if (elem && !elem.classList.contains(CLASS_NAME_SHOW)) {
              trigger.classList.add(CLASS_NAME_COLLAPSED)
              trigger.setAttribute('aria-expanded', false)
            }
          }
        }

        this.setTransitioning(true)

        const complete = () => {
          this.setTransitioning(false)
          this._element.classList.remove(CLASS_NAME_COLLAPSING)
          this._element.classList.add(CLASS_NAME_COLLAPSE)
          EventHandler.trigger(this._element, EVENT_HIDDEN)
        }

        this._element.style[dimension] = ''
        const transitionDuration = getTransitionDurationFromElement(this._element)

        EventHandler.one(this._element, TRANSITION_END, complete)
        emulateTransitionEnd(this._element, transitionDuration)
      }

      setTransitioning(isTransitioning) {
        this._isTransitioning = isTransitioning
      }

      dispose() {
        Data.removeData(this._element, DATA_KEY)

        this._config = null
        this._parent = null
        this._element = null
        this._triggerArray = null
        this._isTransitioning = null
      }

      // Private

      _getConfig(config) {
        config = {
          ...Default,
          ...config
        }
        config.toggle = Boolean(config.toggle) // Coerce string values
        typeCheckConfig(NAME, config, DefaultType)
        return config
      }

      _getDimension() {
        return this._element.classList.contains(WIDTH) ? WIDTH : HEIGHT
      }

      _getParent() {
        let { parent } = this._config

        if (isElement(parent)) {
          // it's a jQuery object
          if (typeof parent.jquery !== 'undefined' || typeof parent[0] !== 'undefined') {
            parent = parent[0]
          }
        } else {
          parent = SelectorEngine.findOne(parent)
        }

        const selector = `${SELECTOR_DATA_TOGGLE}[data-parent="${parent}"]`

        SelectorEngine.find(selector, parent)
          .forEach(element => {
            const selected = getElementFromSelector(element)

            this._addAriaAndCollapsedClass(
              selected,
              [element]
            )
          })

        return parent
      }

      _addAriaAndCollapsedClass(element, triggerArray) {
        if (!element || !triggerArray.length) {
          return
        }

        const isOpen = element.classList.contains(CLASS_NAME_SHOW)

        triggerArray.forEach(elem => {
          if (isOpen) {
            elem.classList.remove(CLASS_NAME_COLLAPSED)
          } else {
            elem.classList.add(CLASS_NAME_COLLAPSED)
          }

          elem.setAttribute('aria-expanded', isOpen)
        })
      }

      // Static

      static collapseInterface(element, config) {
        let data = Data.getData(element, DATA_KEY)
        const _config = {
          ...Default,
          ...Manipulator.getDataAttributes(element),
          ...(typeof config === 'object' && config ? config : {})
        }

        if (!data && _config.toggle && typeof config === 'string' && /show|hide/.test(config)) {
          _config.toggle = false
        }

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

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

          data[config]()
        }
      }

      static jQueryInterface(config) {
        return this.each(function () {
          Collapse.collapseInterface(this, config)
        })
      }

      static getInstance(element) {
        return Data.getData(element, DATA_KEY)
      }
    }

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

    EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
      // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
      if (event.target.tagName === 'A') {
        event.preventDefault()
      }

      const triggerData = Manipulator.getDataAttributes(this)
      const selector = getSelectorFromElement(this)
      const selectorElements = SelectorEngine.find(selector)

      selectorElements.forEach(element => {
        const data = Data.getData(element, DATA_KEY)
        let config
        if (data) {
          // update parent attribute
          Iif (data._parent === null && typeof triggerData.parent === 'string') {
            data._config.parent = triggerData.parent
            data._parent = data._getParent()
          }

          config = 'toggle'
        } else {
          config = triggerData
        }

        Collapse.collapseInterface(element, config)
      })
    })

    const $ = getjQuery()

    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     * add .collapse to jQuery only if jQuery is present
     */
    /* istanbul ignore if */
    if ($) {
      const JQUERY_NO_CONFLICT = $.fn[NAME]
      $.fn[NAME] = Collapse.jQueryInterface
      $.fn[NAME].Constructor = Collapse
      $.fn[NAME].noConflict = () => {
        $.fn[NAME] = JQUERY_NO_CONFLICT
        return Collapse.jQueryInterface
      }
    }

    export default Collapse