added bootstrap

public/bootstrap-4.0.0/js/src/util.js

@@ -0,0 +1,161 @@
+import $ from 'jquery'
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0): util.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+const Util = (($) => {
+  /**
+   * ------------------------------------------------------------------------
+   * Private TransitionEnd Helpers
+   * ------------------------------------------------------------------------
+   */
+
+  let transition = false
+
+  const MAX_UID = 1000000
+
+  // Shoutout AngusCroll (https://goo.gl/pxwQGp)
+  function toType(obj) {
+    return {}.toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase()
+  }
+
+  function getSpecialTransitionEndEvent() {
+    return {
+      bindType: transition.end,
+      delegateType: transition.end,
+      handle(event) {
+        if ($(event.target).is(this)) {
+          return event.handleObj.handler.apply(this, arguments) // eslint-disable-line prefer-rest-params
+        }
+        return undefined // eslint-disable-line no-undefined
+      }
+    }
+  }
+
+  function transitionEndTest() {
+    if (typeof window !== 'undefined' && window.QUnit) {
+      return false
+    }
+
+    return {
+      end: 'transitionend'
+    }
+  }
+
+  function transitionEndEmulator(duration) {
+    let called = false
+
+    $(this).one(Util.TRANSITION_END, () => {
+      called = true
+    })
+
+    setTimeout(() => {
+      if (!called) {
+        Util.triggerTransitionEnd(this)
+      }
+    }, duration)
+
+    return this
+  }
+
+  function setTransitionEndSupport() {
+    transition = transitionEndTest()
+
+    $.fn.emulateTransitionEnd = transitionEndEmulator
+
+    if (Util.supportsTransitionEnd()) {
+      $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent()
+    }
+  }
+
+  function escapeId(selector) {
+    // We escape IDs in case of special selectors (selector = '#myId:something')
+    // $.escapeSelector does not exist in jQuery < 3
+    selector = typeof $.escapeSelector === 'function' ? $.escapeSelector(selector).substr(1)
+      : selector.replace(/(:|\.|\[|\]|,|=|@)/g, '\\$1')
+
+    return selector
+  }
+
+  /**
+   * --------------------------------------------------------------------------
+   * Public Util Api
+   * --------------------------------------------------------------------------
+   */
+
+  const Util = {
+
+    TRANSITION_END: 'bsTransitionEnd',
+
+    getUID(prefix) {
+      do {
+        // eslint-disable-next-line no-bitwise
+        prefix += ~~(Math.random() * MAX_UID) // "~~" acts like a faster Math.floor() here
+      } while (document.getElementById(prefix))
+      return prefix
+    },
+
+    getSelectorFromElement(element) {
+      let selector = element.getAttribute('data-target')
+      if (!selector || selector === '#') {
+        selector = element.getAttribute('href') || ''
+      }
+
+      // If it's an ID
+      if (selector.charAt(0) === '#') {
+        selector = escapeId(selector)
+      }
+
+      try {
+        const $selector = $(document).find(selector)
+        return $selector.length > 0 ? selector : null
+      } catch (err) {
+        return null
+      }
+    },
+
+    reflow(element) {
+      return element.offsetHeight
+    },
+
+    triggerTransitionEnd(element) {
+      $(element).trigger(transition.end)
+    },
+
+    supportsTransitionEnd() {
+      return Boolean(transition)
+    },
+
+    isElement(obj) {
+      return (obj[0] || obj).nodeType
+    },
+
+    typeCheckConfig(componentName, config, configTypes) {
+      for (const property in configTypes) {
+        if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
+          const expectedTypes = configTypes[property]
+          const value         = config[property]
+          const valueType     = value && Util.isElement(value)
+            ? 'element' : toType(value)
+
+          if (!new RegExp(expectedTypes).test(valueType)) {
+            throw new Error(
+              `${componentName.toUpperCase()}: ` +
+              `Option "${property}" provided type "${valueType}" ` +
+              `but expected type "${expectedTypes}".`)
+          }
+        }
+      }
+    }
+  }
+
+  setTransitionEndSupport()
+
+  return Util
+})($)
+
+export default Util