Merge pull request #116 from twbs/fat-es6Alert

es6 - wip

1 files changed, 468 insertions, 0 deletions

diff --git a/js/src/carousel.js b/js/src/carousel.js
new file mode 100644
index 000000000..c11f0a599
--- /dev/null
+++ b/js/src/carousel.js
@@ -0,0 +1,468 @@
+import Util from './util'
+
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0): carousel.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+const Carousel = (($) => {
+
+
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+
+  const NAME                = 'carousel'
+  const VERSION             = '4.0.0'
+  const DATA_KEY            = 'bs.carousel'
+  const EVENT_KEY           = `.${DATA_KEY}`
+  const DATA_API_KEY        = '.data-api'
+  const JQUERY_NO_CONFLICT  = $.fn[NAME]
+  const TRANSITION_DURATION = 600
+
+  const Default = {
+    interval : 5000,
+    keyboard : true,
+    slide    : false,
+    pause    : 'hover',
+    wrap     : true
+  }
+
+  const DefaultType = {
+    interval : '(number|boolean)',
+    keyboard : 'boolean',
+    slide    : '(boolean|string)',
+    pause    : '(string|boolean)',
+    wrap     : 'boolean'
+  }
+
+  const Direction = {
+    NEXT     : 'next',
+    PREVIOUS : 'prev'
+  }
+
+  const Event = {
+    SLIDE          : `slide${EVENT_KEY}`,
+    SLID           : `slid${EVENT_KEY}`,
+    KEYDOWN        : `keydown${EVENT_KEY}`,
+    MOUSEENTER     : `mouseenter${EVENT_KEY}`,
+    MOUSELEAVE     : `mouseleave${EVENT_KEY}`,
+    LOAD_DATA_API  : `load${EVENT_KEY}${DATA_API_KEY}`,
+    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
+  }
+
+  const ClassName = {
+    CAROUSEL : 'carousel',
+    ACTIVE   : 'active',
+    SLIDE    : 'slide',
+    RIGHT    : 'right',
+    LEFT     : 'left',
+    ITEM     : 'carousel-item'
+  }
+
+  const Selector = {
+    ACTIVE      : '.active',
+    ACTIVE_ITEM : '.active.carousel-item',
+    ITEM        : '.carousel-item',
+    NEXT_PREV   : '.next, .prev',
+    INDICATORS  : '.carousel-indicators',
+    DATA_SLIDE  : '[data-slide], [data-slide-to]',
+    DATA_RIDE   : '[data-ride="carousel"]'
+  }
+
+
+  /**
+   * ------------------------------------------------------------------------
+   * Class Definition
+   * ------------------------------------------------------------------------
+   */
+
+  class Carousel {
+
+    constructor(element, config) {
+      this._items             = null
+      this._interval          = null
+      this._activeElement     = null
+
+      this._isPaused          = false
+      this._isSliding         = false
+
+      this._config            = this._getConfig(config)
+      this._element           = $(element)[0]
+      this._indicatorsElement = $(this._element).find(Selector.INDICATORS)[0]
+
+      this._addEventListeners()
+    }
+
+
+    // getters
+
+    static get VERSION() {
+      return VERSION
+    }
+
+    static get Default() {
+      return Default
+    }
+
+
+    // public
+
+    next() {
+      if (!this._isSliding) {
+        this._slide(Direction.NEXT)
+      }
+    }
+
+    prev() {
+      if (!this._isSliding) {
+        this._slide(Direction.PREVIOUS)
+      }
+    }
+
+    pause(event) {
+      if (!event) {
+        this._isPaused = true
+      }
+
+      if ($(this._element).find(Selector.NEXT_PREV)[0] &&
+        Util.supportsTransitionEnd()) {
+        Util.triggerTransitionEnd(this._element)
+        this.cycle(true)
+      }
+
+      clearInterval(this._interval)
+      this._interval = null
+    }
+
+    cycle(event) {
+      if (!event) {
+        this._isPaused = false
+      }
+
+      if (this._interval) {
+        clearInterval(this._interval)
+        this._interval = null
+      }
+
+      if (this._config.interval && !this._isPaused) {
+        this._interval = setInterval(
+          $.proxy(this.next, this), this._config.interval
+        )
+      }
+    }
+
+    to(index) {
+      this._activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]
+
+      let activeIndex = this._getItemIndex(this._activeElement)
+
+      if (index > (this._items.length - 1) || index < 0) {
+        return
+      }
+
+      if (this._isSliding) {
+        $(this._element).one(Event.SLID, () => this.to(index))
+        return
+      }
+
+      if (activeIndex == index) {
+        this.pause()
+        this.cycle()
+        return
+      }
+
+      var direction = index > activeIndex ?
+        Direction.NEXT :
+        Direction.PREVIOUS
+
+      this._slide(direction, this._items[index])
+    }
+
+    dispose() {
+      $(this._element).off(EVENT_KEY)
+      $.removeData(this._element, DATA_KEY)
+
+      this._items             = null
+      this._config            = null
+      this._element           = null
+      this._interval          = null
+      this._isPaused          = null
+      this._isSliding         = null
+      this._activeElement     = null
+      this._indicatorsElement = null
+    }
+
+
+    // private
+
+    _getConfig(config) {
+      config = $.extend({}, Default, config)
+      Util.typeCheckConfig(NAME, config, DefaultType)
+      return config
+    }
+
+    _addEventListeners() {
+      if (this._config.keyboard) {
+        $(this._element)
+          .on(Event.KEYDOWN, $.proxy(this._keydown, this))
+      }
+
+      if (this._config.pause == 'hover' &&
+        !('ontouchstart' in document.documentElement)) {
+        $(this._element)
+          .on(Event.MOUSEENTER, $.proxy(this.pause, this))
+          .on(Event.MOUSELEAVE, $.proxy(this.cycle, this))
+      }
+    }
+
+    _keydown(event) {
+      event.preventDefault()
+
+      if (/input|textarea/i.test(event.target.tagName)) return
+
+      switch (event.which) {
+        case 37: this.prev(); break
+        case 39: this.next(); break
+        default: return
+      }
+    }
+
+    _getItemIndex(element) {
+      this._items = $.makeArray($(element).parent().find(Selector.ITEM))
+      return this._items.indexOf(element)
+    }
+
+    _getItemByDirection(direction, activeElement) {
+      let isNextDirection = direction === Direction.NEXT
+      let isPrevDirection = direction === Direction.PREVIOUS
+      let activeIndex     = this._getItemIndex(activeElement)
+      let lastItemIndex   = (this._items.length - 1)
+      let isGoingToWrap   = (isPrevDirection && activeIndex === 0) ||
+                            (isNextDirection && activeIndex == lastItemIndex)
+
+      if (isGoingToWrap && !this._config.wrap) {
+        return activeElement
+      }
+
+      let delta     = direction == Direction.PREVIOUS ? -1 : 1
+      let itemIndex = (activeIndex + delta) % this._items.length
+
+      return itemIndex === -1 ?
+        this._items[this._items.length - 1] : this._items[itemIndex]
+    }
+
+
+    _triggerSlideEvent(relatedTarget, directionalClassname) {
+      let slideEvent = $.Event(Event.SLIDE, {
+        relatedTarget: relatedTarget,
+        direction: directionalClassname
+      })
+
+      $(this._element).trigger(slideEvent)
+
+      return slideEvent
+    }
+
+    _setActiveIndicatorElement(element) {
+      if (this._indicatorsElement) {
+        $(this._indicatorsElement)
+          .find(Selector.ACTIVE)
+          .removeClass(ClassName.ACTIVE)
+
+        let nextIndicator = this._indicatorsElement.children[
+          this._getItemIndex(element)
+        ]
+
+        if (nextIndicator) {
+          $(nextIndicator).addClass(ClassName.ACTIVE)
+        }
+      }
+    }
+
+    _slide(direction, element) {
+      let activeElement = $(this._element).find(Selector.ACTIVE_ITEM)[0]
+      let nextElement   = element || activeElement &&
+        this._getItemByDirection(direction, activeElement)
+
+      let isCycling = !!this._interval
+
+      let directionalClassName = direction == Direction.NEXT ?
+        ClassName.LEFT :
+        ClassName.RIGHT
+
+      if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {
+        this._isSliding = false
+        return
+      }
+
+      let slideEvent = this._triggerSlideEvent(nextElement, directionalClassName)
+      if (slideEvent.isDefaultPrevented()) {
+        return
+      }
+
+      if (!activeElement || !nextElement) {
+        // some weirdness is happening, so we bail
+        return
+      }
+
+      this._isSliding = true
+
+      if (isCycling) {
+        this.pause()
+      }
+
+      this._setActiveIndicatorElement(nextElement)
+
+      var slidEvent = $.Event(Event.SLID, {
+        relatedTarget: nextElement,
+        direction: directionalClassName
+      })
+
+      if (Util.supportsTransitionEnd() &&
+        $(this._element).hasClass(ClassName.SLIDE)) {
+
+        $(nextElement).addClass(direction)
+
+        Util.reflow(nextElement)
+
+        $(activeElement).addClass(directionalClassName)
+        $(nextElement).addClass(directionalClassName)
+
+        $(activeElement)
+          .one(Util.TRANSITION_END, () => {
+            $(nextElement)
+              .removeClass(directionalClassName)
+              .removeClass(direction)
+
+            $(nextElement).addClass(ClassName.ACTIVE)
+
+            $(activeElement)
+              .removeClass(ClassName.ACTIVE)
+              .removeClass(direction)
+              .removeClass(directionalClassName)
+
+            this._isSliding = false
+
+            setTimeout(() => $(this._element).trigger(slidEvent), 0)
+
+          })
+          .emulateTransitionEnd(TRANSITION_DURATION)
+
+      } else {
+        $(activeElement).removeClass(ClassName.ACTIVE)
+        $(nextElement).addClass(ClassName.ACTIVE)
+
+        this._isSliding = false
+        $(this._element).trigger(slidEvent)
+      }
+
+      if (isCycling) {
+        this.cycle()
+      }
+    }
+
+
+    // static
+
+    static _jQueryInterface(config) {
+      return this.each(function () {
+        let data    = $(this).data(DATA_KEY)
+        let _config = $.extend({}, Default, $(this).data())
+
+        if (typeof config === 'object') {
+          $.extend(_config, config)
+        }
+
+        let action = typeof config === 'string' ? config : _config.slide
+
+        if (!data) {
+          data = new Carousel(this, _config)
+          $(this).data(DATA_KEY, data)
+        }
+
+        if (typeof config == 'number') {
+          data.to(config)
+
+        } else if (action) {
+          data[action]()
+
+        } else if (_config.interval) {
+          data.pause()
+          data.cycle()
+        }
+      })
+    }
+
+    static _dataApiClickHandler(event) {
+      let selector = Util.getSelectorFromElement(this)
+
+      if (!selector) {
+        return
+      }
+
+      let target = $(selector)[0]
+
+      if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {
+        return
+      }
+
+      let config = $.extend({}, $(target).data(), $(this).data())
+
+      let slideIndex = this.getAttribute('data-slide-to')
+      if (slideIndex) {
+        config.interval = false
+      }
+
+      Carousel._jQueryInterface.call($(target), config)
+
+      if (slideIndex) {
+        $(target).data(DATA_KEY).to(slideIndex)
+      }
+
+      event.preventDefault()
+    }
+
+  }
+
+
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+  $(document)
+    .on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)
+
+  $(window).on(Event.LOAD_DATA_API, function () {
+    $(Selector.DATA_RIDE).each(function () {
+      let $carousel = $(this)
+      Carousel._jQueryInterface.call($carousel, $carousel.data())
+    })
+  })
+
+
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $.fn[NAME]             = Carousel._jQueryInterface
+  $.fn[NAME].Constructor = Carousel
+  $.fn[NAME].noConflict  = function () {
+    $.fn[NAME] = JQUERY_NO_CONFLICT
+    return Carousel._jQueryInterface
+  }
+
+  return Carousel
+
+})(jQuery)
+
+export default Carousel