<commit_before>import Util from './util'


/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0-alpha.2): modal.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

const Modal = (($) => {


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

  const NAME                         = 'modal'
  const VERSION                      = '4.0.0-alpha.2'
  const DATA_KEY                     = 'bs.modal'
  const EVENT_KEY                    = `.${DATA_KEY}`
  const DATA_API_KEY                 = '.data-api'
  const JQUERY_NO_CONFLICT           = $.fn[NAME]
  const TRANSITION_DURATION          = 300
  const BACKDROP_TRANSITION_DURATION = 150

  const Default = {
    backdrop : true,
    keyboard : true,
    focus    : true,
    show     : true
  }

  const DefaultType = {
    backdrop : '(boolean|string)',
    keyboard : 'boolean',
    focus    : 'boolean',
    show     : 'boolean'
  }

  const Event = {
    HIDE              : `hide${EVENT_KEY}`,
    HIDDEN            : `hidden${EVENT_KEY}`,
    SHOW              : `show${EVENT_KEY}`,
    SHOWN             : `shown${EVENT_KEY}`,
    FOCUSIN           : `focusin${EVENT_KEY}`,
    RESIZE            : `resize${EVENT_KEY}`,
    CLICK_DISMISS     : `click.dismiss${EVENT_KEY}`,
    KEYDOWN_DISMISS   : `keydown.dismiss${EVENT_KEY}`,
    MOUSEUP_DISMISS   : `mouseup.dismiss${EVENT_KEY}`,
    MOUSEDOWN_DISMISS : `mousedown.dismiss${EVENT_KEY}`,
    CLICK_DATA_API    : `click${EVENT_KEY}${DATA_API_KEY}`
  }

  const ClassName = {
    SCROLLBAR_MEASURER : 'modal-scrollbar-measure',
    BACKDROP           : 'modal-backdrop',
    OPEN               : 'modal-open',
    FADE               : 'fade',
    IN                 : 'in'
  }

  const Selector = {
    DIALOG             : '.modal-dialog',
    DATA_TOGGLE        : '[data-toggle="modal"]',
    DATA_DISMISS       : '[data-dismiss="modal"]',
    FIXED_CONTENT      : '.navbar-fixed-top, .navbar-fixed-bottom, .is-fixed'
  }


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

  class Modal {

    constructor(element, config) {
      this._config              = this._getConfig(config)
      this._element             = element
      this._dialog              = $(element).find(Selector.DIALOG)[0]
      this._backdrop            = null
      this._isShown             = false
      this._isBodyOverflowing   = false
      this._ignoreBackdropClick = false
      this._originalBodyPadding = 0
      this._scrollbarWidth      = 0
    }


    // getters

    static get VERSION() {
      return VERSION
    }

    static get Default() {
      return Default
    }


    // public

    toggle(relatedTarget) {
      return this._isShown ? this.hide() : this.show(relatedTarget)
    }

    show(relatedTarget) {
      let showEvent = $.Event(Event.SHOW, {
        relatedTarget
      })

      $(this._element).trigger(showEvent)

      if (this._isShown || showEvent.isDefaultPrevented()) {
        return
      }

      this._isShown = true

      this._checkScrollbar()
      this._setScrollbar()

      $(document.body).addClass(ClassName.OPEN)

      this._setEscapeEvent()
      this._setResizeEvent()

      $(this._element).on(
        Event.CLICK_DISMISS,
        Selector.DATA_DISMISS,
        $.proxy(this.hide, this)
      )

      $(this._dialog).on(Event.MOUSEDOWN_DISMISS, () => {
        $(this._element).one(Event.MOUSEUP_DISMISS, (event) => {
          if ($(event.target).is(this._element)) {
            this._ignoreBackdropClick = true
          }
        })
      })

      this._showBackdrop(
        $.proxy(this._showElement, this, relatedTarget)
      )
    }

    hide(event) {
      if (event) {
        event.preventDefault()
      }

      let hideEvent = $.Event(Event.HIDE)

      $(this._element).trigger(hideEvent)

      if (!this._isShown || hideEvent.isDefaultPrevented()) {
        return
      }

      this._isShown = false

      this._setEscapeEvent()
      this._setResizeEvent()

      $(document).off(Event.FOCUSIN)

      $(this._element).removeClass(ClassName.IN)

      $(this._element).off(Event.CLICK_DISMISS)
      $(this._dialog).off(Event.MOUSEDOWN_DISMISS)

      if (Util.supportsTransitionEnd() &&
         ($(this._element).hasClass(ClassName.FADE))) {

        $(this._element)
          .one(Util.TRANSITION_END, $.proxy(this._hideModal, this))
          .emulateTransitionEnd(TRANSITION_DURATION)
      } else {
        this._hideModal()
      }
    }

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

      $(window).off(EVENT_KEY)
      $(document).off(EVENT_KEY)
      $(this._element).off(EVENT_KEY)
      $(this._backdrop).off(EVENT_KEY)

      this._config              = null
      this._element             = null
      this._dialog              = null
      this._backdrop            = null
      this._isShown             = null
      this._isBodyOverflowing   = null
      this._ignoreBackdropClick = null
      this._originalBodyPadding = null
      this._scrollbarWidth      = null
    }


    // private

    _getConfig(config) {
      config = $.extend({}, Default, config)
      Util.typeCheckConfig(NAME, config, DefaultType)
      return config
    }

    _showElement(relatedTarget) {
      let transition = Util.supportsTransitionEnd() &&
        $(this._element).hasClass(ClassName.FADE)

      if (!this._element.parentNode ||
         (this._element.parentNode.nodeType !== Node.ELEMENT_NODE)) {
        // don't move modals dom position
        document.body.appendChild(this._element)
      }

      this._element.style.display = 'block'
      this._element.scrollTop = 0

      if (transition) {
        Util.reflow(this._element)
      }

      $(this._element).addClass(ClassName.IN)

      if (this._config.focus) {
        this._enforceFocus()
      }

      let shownEvent = $.Event(Event.SHOWN, {
        relatedTarget
      })

      let transitionComplete = () => {
        if (this._config.focus) {
          this._element.focus()
        }
        $(this._element).trigger(shownEvent)
      }

      if (transition) {
        $(this._dialog)
          .one(Util.TRANSITION_END, transitionComplete)
          .emulateTransitionEnd(TRANSITION_DURATION)
      } else {
        transitionComplete()
      }
    }

    _enforceFocus() {
      $(document)
        .off(Event.FOCUSIN) // guard against infinite focus loop
        .on(Event.FOCUSIN, (event) => {
          if (document !== event.target &&
              this._element !== event.target &&
              (!$(this._element).has(event.target).length)) {
            this._element.focus()
          }
        })
    }

    _setEscapeEvent() {
      if (this._isShown && this._config.keyboard) {
        $(this._element).on(Event.KEYDOWN_DISMISS, (event) => {
          if (event.which === 27) {
            this.hide()
          }
        })

      } else if (!this._isShown) {
        $(this._element).off(Event.KEYDOWN_DISMISS)
      }
    }

    _setResizeEvent() {
      if (this._isShown) {
        $(window).on(Event.RESIZE, $.proxy(this._handleUpdate, this))
      } else {
        $(window).off(Event.RESIZE)
      }
    }

    _hideModal() {
      this._element.style.display = 'none'
      this._showBackdrop(() => {
        $(document.body).removeClass(ClassName.OPEN)
        this._resetAdjustments()
        this._resetScrollbar()
        $(this._element).trigger(Event.HIDDEN)
      })
    }

    _removeBackdrop() {
      if (this._backdrop) {
        $(this._backdrop).remove()
        this._backdrop = null
      }
    }

    _showBackdrop(callback) {
      let animate = $(this._element).hasClass(ClassName.FADE) ?
        ClassName.FADE : ''

      if (this._isShown && this._config.backdrop) {
        let doAnimate = Util.supportsTransitionEnd() && animate

        this._backdrop = document.createElement('div')
        this._backdrop.className = ClassName.BACKDROP

        if (animate) {
          $(this._backdrop).addClass(animate)
        }

        $(this._backdrop).appendTo(document.body)

        $(this._element).on(Event.CLICK_DISMISS, (event) => {
          if (this._ignoreBackdropClick) {
            this._ignoreBackdropClick = false
            return
          }
          if (event.target !== event.currentTarget) {
            return
          }
          if (this._config.backdrop === 'static') {
            this._element.focus()
          } else {
            this.hide()
          }
        })

        if (doAnimate) {
          Util.reflow(this._backdrop)
        }

        $(this._backdrop).addClass(ClassName.IN)

        if (!callback) {
          return
        }

        if (!doAnimate) {
          callback()
          return
        }

        $(this._backdrop)
          .one(Util.TRANSITION_END, callback)
          .emulateTransitionEnd(BACKDROP_TRANSITION_DURATION)

      } else if (!this._isShown && this._backdrop) {
        $(this._backdrop).removeClass(ClassName.IN)

        let callbackRemove = () => {
          this._removeBackdrop()
          if (callback) {
            callback()
          }
        }

        if (Util.supportsTransitionEnd() &&
           ($(this._element).hasClass(ClassName.FADE))) {
          $(this._backdrop)
            .one(Util.TRANSITION_END, callbackRemove)
            .emulateTransitionEnd(BACKDROP_TRANSITION_DURATION)
        } else {
          callbackRemove()
        }

      } else if (callback) {
        callback()
      }
    }


    // ----------------------------------------------------------------------
    // the following methods are used to handle overflowing modals
    // todo (fat): these should probably be refactored out of modal.js
    // ----------------------------------------------------------------------

    _handleUpdate() {
      this._adjustDialog()
    }

    _adjustDialog() {
      let isModalOverflowing =
        this._element.scrollHeight > document.documentElement.clientHeight

      if (!this._isBodyOverflowing && isModalOverflowing) {
        this._element.style.paddingLeft = `${this._scrollbarWidth}px`
      }

      if (this._isBodyOverflowing && !isModalOverflowing) {
        this._element.style.paddingRight = `${this._scrollbarWidth}px~`
      }
    }

    _resetAdjustments() {
      this._element.style.paddingLeft = ''
      this._element.style.paddingRight = ''
    }

    _checkScrollbar() {
      let fullWindowWidth = window.innerWidth
      if (!fullWindowWidth) { // workaround for missing window.innerWidth in IE8
        let documentElementRect = document.documentElement.getBoundingClientRect()
        fullWindowWidth =
          documentElementRect.right - Math.abs(documentElementRect.left)
      }
      this._isBodyOverflowing = document.body.clientWidth < fullWindowWidth
      this._scrollbarWidth = this._getScrollbarWidth()
    }<commit_msg>Modal: Remove IE8-specific window.innerWidth workaround<commit_after>import Util from './util'


/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0-alpha.2): modal.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

const Modal = (($) => {


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

  const NAME                         = 'modal'
  const VERSION                      = '4.0.0-alpha.2'
  const DATA_KEY                     = 'bs.modal'
  const EVENT_KEY                    = `.${DATA_KEY}`
  const DATA_API_KEY                 = '.data-api'
  const JQUERY_NO_CONFLICT           = $.fn[NAME]
  const TRANSITION_DURATION          = 300
  const BACKDROP_TRANSITION_DURATION = 150

  const Default = {
    backdrop : true,
    keyboard : true,
    focus    : true,
    show     : true
  }

  const DefaultType = {
    backdrop : '(boolean|string)',
    keyboard : 'boolean',
    focus    : 'boolean',
    show     : 'boolean'
  }

  const Event = {
    HIDE              : `hide${EVENT_KEY}`,
    HIDDEN            : `hidden${EVENT_KEY}`,
    SHOW              : `show${EVENT_KEY}`,
    SHOWN             : `shown${EVENT_KEY}`,
    FOCUSIN           : `focusin${EVENT_KEY}`,
    RESIZE            : `resize${EVENT_KEY}`,
    CLICK_DISMISS     : `click.dismiss${EVENT_KEY}`,
    KEYDOWN_DISMISS   : `keydown.dismiss${EVENT_KEY}`,
    MOUSEUP_DISMISS   : `mouseup.dismiss${EVENT_KEY}`,
    MOUSEDOWN_DISMISS : `mousedown.dismiss${EVENT_KEY}`,
    CLICK_DATA_API    : `click${EVENT_KEY}${DATA_API_KEY}`
  }

  const ClassName = {
    SCROLLBAR_MEASURER : 'modal-scrollbar-measure',
    BACKDROP           : 'modal-backdrop',
    OPEN               : 'modal-open',
    FADE               : 'fade',
    IN                 : 'in'
  }

  const Selector = {
    DIALOG             : '.modal-dialog',
    DATA_TOGGLE        : '[data-toggle="modal"]',
    DATA_DISMISS       : '[data-dismiss="modal"]',
    FIXED_CONTENT      : '.navbar-fixed-top, .navbar-fixed-bottom, .is-fixed'
  }


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

  class Modal {

    constructor(element, config) {
      this._config              = this._getConfig(config)
      this._element             = element
      this._dialog              = $(element).find(Selector.DIALOG)[0]
      this._backdrop            = null
      this._isShown             = false
      this._isBodyOverflowing   = false
      this._ignoreBackdropClick = false
      this._originalBodyPadding = 0
      this._scrollbarWidth      = 0
    }


    // getters

    static get VERSION() {
      return VERSION
    }

    static get Default() {
      return Default
    }


    // public

    toggle(relatedTarget) {
      return this._isShown ? this.hide() : this.show(relatedTarget)
    }

    show(relatedTarget) {
      let showEvent = $.Event(Event.SHOW, {
        relatedTarget
      })

      $(this._element).trigger(showEvent)

      if (this._isShown || showEvent.isDefaultPrevented()) {
        return
      }

      this._isShown = true

      this._checkScrollbar()
      this._setScrollbar()

      $(document.body).addClass(ClassName.OPEN)

      this._setEscapeEvent()
      this._setResizeEvent()

      $(this._element).on(
        Event.CLICK_DISMISS,
        Selector.DATA_DISMISS,
        $.proxy(this.hide, this)
      )

      $(this._dialog).on(Event.MOUSEDOWN_DISMISS, () => {
        $(this._element).one(Event.MOUSEUP_DISMISS, (event) => {
          if ($(event.target).is(this._element)) {
            this._ignoreBackdropClick = true
          }
        })
      })

      this._showBackdrop(
        $.proxy(this._showElement, this, relatedTarget)
      )
    }

    hide(event) {
      if (event) {
        event.preventDefault()
      }

      let hideEvent = $.Event(Event.HIDE)

      $(this._element).trigger(hideEvent)

      if (!this._isShown || hideEvent.isDefaultPrevented()) {
        return
      }

      this._isShown = false

      this._setEscapeEvent()
      this._setResizeEvent()

      $(document).off(Event.FOCUSIN)

      $(this._element).removeClass(ClassName.IN)

      $(this._element).off(Event.CLICK_DISMISS)
      $(this._dialog).off(Event.MOUSEDOWN_DISMISS)

      if (Util.supportsTransitionEnd() &&
         ($(this._element).hasClass(ClassName.FADE))) {

        $(this._element)
          .one(Util.TRANSITION_END, $.proxy(this._hideModal, this))
          .emulateTransitionEnd(TRANSITION_DURATION)
      } else {
        this._hideModal()
      }
    }

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

      $(window).off(EVENT_KEY)
      $(document).off(EVENT_KEY)
      $(this._element).off(EVENT_KEY)
      $(this._backdrop).off(EVENT_KEY)

      this._config              = null
      this._element             = null
      this._dialog              = null
      this._backdrop            = null
      this._isShown             = null
      this._isBodyOverflowing   = null
      this._ignoreBackdropClick = null
      this._originalBodyPadding = null
      this._scrollbarWidth      = null
    }


    // private

    _getConfig(config) {
      config = $.extend({}, Default, config)
      Util.typeCheckConfig(NAME, config, DefaultType)
      return config
    }

    _showElement(relatedTarget) {
      let transition = Util.supportsTransitionEnd() &&
        $(this._element).hasClass(ClassName.FADE)

      if (!this._element.parentNode ||
         (this._element.parentNode.nodeType !== Node.ELEMENT_NODE)) {
        // don't move modals dom position
        document.body.appendChild(this._element)
      }

      this._element.style.display = 'block'
      this._element.scrollTop = 0

      if (transition) {
        Util.reflow(this._element)
      }

      $(this._element).addClass(ClassName.IN)

      if (this._config.focus) {
        this._enforceFocus()
      }

      let shownEvent = $.Event(Event.SHOWN, {
        relatedTarget
      })

      let transitionComplete = () => {
        if (this._config.focus) {
          this._element.focus()
        }
        $(this._element).trigger(shownEvent)
      }

      if (transition) {
        $(this._dialog)
          .one(Util.TRANSITION_END, transitionComplete)
          .emulateTransitionEnd(TRANSITION_DURATION)
      } else {
        transitionComplete()
      }
    }

    _enforceFocus() {
      $(document)
        .off(Event.FOCUSIN) // guard against infinite focus loop
        .on(Event.FOCUSIN, (event) => {
          if (document !== event.target &&
              this._element !== event.target &&
              (!$(this._element).has(event.target).length)) {
            this._element.focus()
          }
        })
    }

    _setEscapeEvent() {
      if (this._isShown && this._config.keyboard) {
        $(this._element).on(Event.KEYDOWN_DISMISS, (event) => {
          if (event.which === 27) {
            this.hide()
          }
        })

      } else if (!this._isShown) {
        $(this._element).off(Event.KEYDOWN_DISMISS)
      }
    }

    _setResizeEvent() {
      if (this._isShown) {
        $(window).on(Event.RESIZE, $.proxy(this._handleUpdate, this))
      } else {
        $(window).off(Event.RESIZE)
      }
    }

    _hideModal() {
      this._element.style.display = 'none'
      this._showBackdrop(() => {
        $(document.body).removeClass(ClassName.OPEN)
        this._resetAdjustments()
        this._resetScrollbar()
        $(this._element).trigger(Event.HIDDEN)
      })
    }

    _removeBackdrop() {
      if (this._backdrop) {
        $(this._backdrop).remove()
        this._backdrop = null
      }
    }

    _showBackdrop(callback) {
      let animate = $(this._element).hasClass(ClassName.FADE) ?
        ClassName.FADE : ''

      if (this._isShown && this._config.backdrop) {
        let doAnimate = Util.supportsTransitionEnd() && animate

        this._backdrop = document.createElement('div')
        this._backdrop.className = ClassName.BACKDROP

        if (animate) {
          $(this._backdrop).addClass(animate)
        }

        $(this._backdrop).appendTo(document.body)

        $(this._element).on(Event.CLICK_DISMISS, (event) => {
          if (this._ignoreBackdropClick) {
            this._ignoreBackdropClick = false
            return
          }
          if (event.target !== event.currentTarget) {
            return
          }
          if (this._config.backdrop === 'static') {
            this._element.focus()
          } else {
            this.hide()
          }
        })

        if (doAnimate) {
          Util.reflow(this._backdrop)
        }

        $(this._backdrop).addClass(ClassName.IN)

        if (!callback) {
          return
        }

        if (!doAnimate) {
          callback()
          return
        }

        $(this._backdrop)
          .one(Util.TRANSITION_END, callback)
          .emulateTransitionEnd(BACKDROP_TRANSITION_DURATION)

      } else if (!this._isShown && this._backdrop) {
        $(this._backdrop).removeClass(ClassName.IN)

        let callbackRemove = () => {
          this._removeBackdrop()
          if (callback) {
            callback()
          }
        }

        if (Util.supportsTransitionEnd() &&
           ($(this._element).hasClass(ClassName.FADE))) {
          $(this._backdrop)
            .one(Util.TRANSITION_END, callbackRemove)
            .emulateTransitionEnd(BACKDROP_TRANSITION_DURATION)
        } else {
          callbackRemove()
        }

      } else if (callback) {
        callback()
      }
    }


    // ----------------------------------------------------------------------
    // the following methods are used to handle overflowing modals
    // todo (fat): these should probably be refactored out of modal.js
    // ----------------------------------------------------------------------

    _handleUpdate() {
      this._adjustDialog()
    }

    _adjustDialog() {
      let isModalOverflowing =
        this._element.scrollHeight > document.documentElement.clientHeight

      if (!this._isBodyOverflowing && isModalOverflowing) {
        this._element.style.paddingLeft = `${this._scrollbarWidth}px`
      }

      if (this._isBodyOverflowing && !isModalOverflowing) {
        this._element.style.paddingRight = `${this._scrollbarWidth}px~`
      }
    }

    _resetAdjustments() {
      this._element.style.paddingLeft = ''
      this._element.style.paddingRight = ''
    }

    _checkScrollbar() {
      this._isBodyOverflowing = document.body.clientWidth < window.innerWidth
      this._scrollbarWidth = this._getScrollbarWidth()
    }
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