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var PLACEMENT_TOP_START = 'top-start';\nexport var PLACEMENT_TOP_END = 'top-end';\nexport var PLACEMENT_BOTTOM_START = 'bottom-start';\nexport var PLACEMENT_BOTTOM_END = 'bottom-end';\nexport var PLACEMENT_RIGHT_START = 'right-start';\nexport var PLACEMENT_RIGHT_END = 'right-end';\nexport var PLACEMENT_LEFT_START = 'left-start';\nexport var PLACEMENT_LEFT_END = 'left-end';","import { Vue } from '../vue';\nimport { EVENT_OPTIONS_NO_CAPTURE } from '../constants/events';\nimport { contains } from '../utils/dom';\nimport { eventOn, eventOff } from '../utils/events'; // @vue/component\n\nexport var clickOutMixin = Vue.extend({\n  data: function data() {\n    return {\n      listenForClickOut: false\n    };\n  },\n  watch: {\n    listenForClickOut: function listenForClickOut(newValue, oldValue) {\n      if (newValue !== oldValue) {\n        eventOff(this.clickOutElement, this.clickOutEventName, this._clickOutHandler, EVENT_OPTIONS_NO_CAPTURE);\n\n        if (newValue) {\n          eventOn(this.clickOutElement, this.clickOutEventName, this._clickOutHandler, EVENT_OPTIONS_NO_CAPTURE);\n        }\n      }\n    }\n  },\n  beforeCreate: function beforeCreate() {\n    // Declare non-reactive properties\n    this.clickOutElement = null;\n    this.clickOutEventName = null;\n  },\n  mounted: function mounted() {\n    if (!this.clickOutElement) {\n      this.clickOutElement = document;\n    }\n\n    if (!this.clickOutEventName) {\n      this.clickOutEventName = 'click';\n    }\n\n    if (this.listenForClickOut) {\n      eventOn(this.clickOutElement, this.clickOutEventName, this._clickOutHandler, EVENT_OPTIONS_NO_CAPTURE);\n    }\n  },\n  beforeDestroy: function beforeDestroy() {\n    eventOff(this.clickOutElement, this.clickOutEventName, this._clickOutHandler, EVENT_OPTIONS_NO_CAPTURE);\n  },\n  methods: {\n    isClickOut: function isClickOut(event) {\n      return !contains(this.$el, event.target);\n    },\n    _clickOutHandler: function _clickOutHandler(event) {\n      if (this.clickOutHandler && this.isClickOut(event)) {\n        this.clickOutHandler(event);\n      }\n    }\n  }\n});","import { Vue } from '../vue';\nimport { EVENT_OPTIONS_NO_CAPTURE } from '../constants/events';\nimport { eventOn, eventOff } from '../utils/events'; // @vue/component\n\nexport var focusInMixin = Vue.extend({\n  data: function data() {\n    return {\n      listenForFocusIn: false\n    };\n  },\n  watch: {\n    listenForFocusIn: function listenForFocusIn(newValue, oldValue) {\n      if (newValue !== oldValue) {\n        eventOff(this.focusInElement, 'focusin', this._focusInHandler, EVENT_OPTIONS_NO_CAPTURE);\n\n        if (newValue) {\n          eventOn(this.focusInElement, 'focusin', this._focusInHandler, EVENT_OPTIONS_NO_CAPTURE);\n        }\n      }\n    }\n  },\n  beforeCreate: function beforeCreate() {\n    // Declare non-reactive properties\n    this.focusInElement = null;\n  },\n  mounted: function mounted() {\n    if (!this.focusInElement) {\n      this.focusInElement = document;\n    }\n\n    if (this.listenForFocusIn) {\n      eventOn(this.focusInElement, 'focusin', this._focusInHandler, EVENT_OPTIONS_NO_CAPTURE);\n    }\n  },\n  beforeDestroy: function beforeDestroy() {\n    eventOff(this.focusInElement, 'focusin', this._focusInHandler, EVENT_OPTIONS_NO_CAPTURE);\n  },\n  methods: {\n    _focusInHandler: function _focusInHandler(event) {\n      if (this.focusInHandler) {\n        this.focusInHandler(event);\n      }\n    }\n  }\n});","function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nimport Popper from 'popper.js';\nimport { Vue } from '../vue';\nimport { NAME_DROPDOWN } from '../constants/components';\nimport { EVENT_NAME_CLICK, EVENT_NAME_HIDDEN, EVENT_NAME_HIDE, EVENT_NAME_SHOW, EVENT_NAME_SHOWN, EVENT_NAME_TOGGLE } from '../constants/events';\nimport { CODE_DOWN, CODE_ENTER, CODE_ESC, CODE_SPACE, CODE_UP } from '../constants/key-codes';\nimport { PLACEMENT_TOP_START, PLACEMENT_TOP_END, PLACEMENT_BOTTOM_START, PLACEMENT_BOTTOM_END, PLACEMENT_RIGHT_START, PLACEMENT_LEFT_START } from '../constants/popper';\nimport { PROP_TYPE_BOOLEAN, PROP_TYPE_NUMBER_STRING, PROP_TYPE_OBJECT, PROP_TYPE_STRING } from '../constants/props';\nimport { HTMLElement } from '../constants/safe-types';\nimport { BvEvent } from '../utils/bv-event.class';\nimport { attemptFocus, closest, contains, isVisible, requestAF, selectAll } from '../utils/dom';\nimport { getRootEventName, stopEvent } from '../utils/events';\nimport { isNull } from '../utils/inspect';\nimport { mergeDeep, sortKeys } from '../utils/object';\nimport { makeProp, makePropsConfigurable } from '../utils/props';\nimport { warn } from '../utils/warn';\nimport { clickOutMixin } from './click-out';\nimport { focusInMixin } from './focus-in';\nimport { idMixin, props as idProps } from './id';\nimport { listenOnRootMixin } from './listen-on-root'; // --- Constants ---\n\nvar ROOT_EVENT_NAME_SHOWN = getRootEventName(NAME_DROPDOWN, EVENT_NAME_SHOWN);\nvar ROOT_EVENT_NAME_HIDDEN = getRootEventName(NAME_DROPDOWN, EVENT_NAME_HIDDEN); // CSS selectors\n\nvar SELECTOR_FORM_CHILD = '.dropdown form';\nvar SELECTOR_ITEM = ['.dropdown-item', '.b-dropdown-form'].map(function (selector) {\n  return \"\".concat(selector, \":not(.disabled):not([disabled])\");\n}).join(', '); // --- Helper methods ---\n// Return an array of visible items\n\nvar filterVisibles = function filterVisibles(els) {\n  return (els || []).filter(isVisible);\n}; // --- Props ---\n\n\nexport var props = makePropsConfigurable(sortKeys(_objectSpread(_objectSpread({}, idProps), {}, {\n  // String: `scrollParent`, `window` or `viewport`\n  // HTMLElement: HTML Element reference\n  boundary: makeProp([HTMLElement, PROP_TYPE_STRING], 'scrollParent'),\n  disabled: makeProp(PROP_TYPE_BOOLEAN, false),\n  // Place left if possible\n  dropleft: makeProp(PROP_TYPE_BOOLEAN, false),\n  // Place right if possible\n  dropright: makeProp(PROP_TYPE_BOOLEAN, false),\n  // Place on top if possible\n  dropup: makeProp(PROP_TYPE_BOOLEAN, false),\n  // Disable auto-flipping of menu from bottom <=> top\n  noFlip: makeProp(PROP_TYPE_BOOLEAN, false),\n  // Number of pixels or a CSS unit value to offset menu\n  // (i.e. `1px`, `1rem`, etc.)\n  offset: makeProp(PROP_TYPE_NUMBER_STRING, 0),\n  popperOpts: makeProp(PROP_TYPE_OBJECT, {}),\n  // Right align menu (default is left align)\n  right: makeProp(PROP_TYPE_BOOLEAN, false)\n})), NAME_DROPDOWN); // --- Mixin ---\n// @vue/component\n\nexport var dropdownMixin = Vue.extend({\n  mixins: [idMixin, listenOnRootMixin, clickOutMixin, focusInMixin],\n  provide: function provide() {\n    return {\n      bvDropdown: this\n    };\n  },\n  inject: {\n    bvNavbar: {\n      default: null\n    }\n  },\n  props: props,\n  data: function data() {\n    return {\n      visible: false,\n      visibleChangePrevented: false\n    };\n  },\n  computed: {\n    inNavbar: function inNavbar() {\n      return !isNull(this.bvNavbar);\n    },\n    toggler: function toggler() {\n      var toggle = this.$refs.toggle;\n      return toggle ? toggle.$el || toggle : null;\n    },\n    directionClass: function directionClass() {\n      if (this.dropup) {\n        return 'dropup';\n      } else if (this.dropright) {\n        return 'dropright';\n      } else if (this.dropleft) {\n        return 'dropleft';\n      }\n\n      return '';\n    },\n    boundaryClass: function boundaryClass() {\n      // Position `static` is needed to allow menu to \"breakout\" of the `scrollParent`\n      // boundaries when boundary is anything other than `scrollParent`\n      // See: https://github.com/twbs/bootstrap/issues/24251#issuecomment-341413786\n      return this.boundary !== 'scrollParent' && !this.inNavbar ? 'position-static' : '';\n    }\n  },\n  watch: {\n    visible: function visible(newValue, oldValue) {\n      if (this.visibleChangePrevented) {\n        this.visibleChangePrevented = false;\n        return;\n      }\n\n      if (newValue !== oldValue) {\n        var eventName = newValue ? EVENT_NAME_SHOW : EVENT_NAME_HIDE;\n        var bvEvent = new BvEvent(eventName, {\n          cancelable: true,\n          vueTarget: this,\n          target: this.$refs.menu,\n          relatedTarget: null,\n          componentId: this.safeId ? this.safeId() : this.id || null\n        });\n        this.emitEvent(bvEvent);\n\n        if (bvEvent.defaultPrevented) {\n          // Reset value and exit if canceled\n          this.visibleChangePrevented = true;\n          this.visible = oldValue; // Just in case a child element triggered `this.hide(true)`\n\n          this.$off(EVENT_NAME_HIDDEN, this.focusToggler);\n          return;\n        }\n\n        if (newValue) {\n          this.showMenu();\n        } else {\n          this.hideMenu();\n        }\n      }\n    },\n    disabled: function disabled(newValue, oldValue) {\n      if (newValue !== oldValue && newValue && this.visible) {\n        // Hide dropdown if disabled changes to true\n        this.visible = false;\n      }\n    }\n  },\n  created: function created() {\n    // Create private non-reactive props\n    this.$_popper = null;\n    this.$_hideTimeout = null;\n  },\n\n  /* istanbul ignore next */\n  deactivated: function deactivated() {\n    // In case we are inside a `<keep-alive>`\n    this.visible = false;\n    this.whileOpenListen(false);\n    this.destroyPopper();\n  },\n  beforeDestroy: function beforeDestroy() {\n    this.visible = false;\n    this.whileOpenListen(false);\n    this.destroyPopper();\n    this.clearHideTimeout();\n  },\n  methods: {\n    // Event emitter\n    emitEvent: function emitEvent(bvEvent) {\n      var type = bvEvent.type;\n      this.emitOnRoot(getRootEventName(NAME_DROPDOWN, type), bvEvent);\n      this.$emit(type, bvEvent);\n    },\n    showMenu: function showMenu() {\n      var _this = this;\n\n      if (this.disabled) {\n        /* istanbul ignore next */\n        return;\n      } // Only instantiate Popper.js when dropdown is not in `<b-navbar>`\n\n\n      if (!this.inNavbar) {\n        if (typeof Popper === 'undefined') {\n          /* istanbul ignore next */\n          warn('Popper.js not found. Falling back to CSS positioning', NAME_DROPDOWN);\n        } else {\n          // For dropup with alignment we use the parent element as popper container\n          var el = this.dropup && this.right || this.split ? this.$el : this.$refs.toggle; // Make sure we have a reference to an element, not a component!\n\n          el = el.$el || el; // Instantiate Popper.js\n\n          this.createPopper(el);\n        }\n      } // Ensure other menus are closed\n\n\n      this.emitOnRoot(ROOT_EVENT_NAME_SHOWN, this); // Enable listeners\n\n      this.whileOpenListen(true); // Wrap in `$nextTick()` to ensure menu is fully rendered/shown\n\n      this.$nextTick(function () {\n        // Focus on the menu container on show\n        _this.focusMenu(); // Emit the shown event\n\n\n        _this.$emit(EVENT_NAME_SHOWN);\n      });\n    },\n    hideMenu: function hideMenu() {\n      this.whileOpenListen(false);\n      this.emitOnRoot(ROOT_EVENT_NAME_HIDDEN, this);\n      this.$emit(EVENT_NAME_HIDDEN);\n      this.destroyPopper();\n    },\n    createPopper: function createPopper(element) {\n      this.destroyPopper();\n      this.$_popper = new Popper(element, this.$refs.menu, this.getPopperConfig());\n    },\n    // Ensure popper event listeners are removed cleanly\n    destroyPopper: function destroyPopper() {\n      this.$_popper && this.$_popper.destroy();\n      this.$_popper = null;\n    },\n    // Instructs popper to re-computes the dropdown position\n    // useful if the content changes size\n    updatePopper: function updatePopper() {\n      try {\n        this.$_popper.scheduleUpdate();\n      } catch (_unused) {}\n    },\n    clearHideTimeout: function clearHideTimeout() {\n      clearTimeout(this.$_hideTimeout);\n      this.$_hideTimeout = null;\n    },\n    getPopperConfig: function getPopperConfig() {\n      var placement = PLACEMENT_BOTTOM_START;\n\n      if (this.dropup) {\n        placement = this.right ? PLACEMENT_TOP_END : PLACEMENT_TOP_START;\n      } else if (this.dropright) {\n        placement = PLACEMENT_RIGHT_START;\n      } else if (this.dropleft) {\n        placement = PLACEMENT_LEFT_START;\n      } else if (this.right) {\n        placement = PLACEMENT_BOTTOM_END;\n      }\n\n      var popperConfig = {\n        placement: placement,\n        modifiers: {\n          offset: {\n            offset: this.offset || 0\n          },\n          flip: {\n            enabled: !this.noFlip\n          }\n        }\n      };\n      var boundariesElement = this.boundary;\n\n      if (boundariesElement) {\n        popperConfig.modifiers.preventOverflow = {\n          boundariesElement: boundariesElement\n        };\n      }\n\n      return mergeDeep(popperConfig, this.popperOpts || {});\n    },\n    // Turn listeners on/off while open\n    whileOpenListen: function whileOpenListen(isOpen) {\n      // Hide the dropdown when clicked outside\n      this.listenForClickOut = isOpen; // Hide the dropdown when it loses focus\n\n      this.listenForFocusIn = isOpen; // Hide the dropdown when another dropdown is opened\n\n      var method = isOpen ? '$on' : '$off';\n      this.$root[method](ROOT_EVENT_NAME_SHOWN, this.rootCloseListener);\n    },\n    rootCloseListener: function rootCloseListener(vm) {\n      if (vm !== this) {\n        this.visible = false;\n      }\n    },\n    // Public method to show dropdown\n    show: function show() {\n      var _this2 = this;\n\n      if (this.disabled) {\n        return;\n      } // Wrap in a `requestAF()` to allow any previous\n      // click handling to occur first\n\n\n      requestAF(function () {\n        _this2.visible = true;\n      });\n    },\n    // Public method to hide dropdown\n    hide: function hide() {\n      var refocus = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;\n\n      /* istanbul ignore next */\n      if (this.disabled) {\n        return;\n      }\n\n      this.visible = false;\n\n      if (refocus) {\n        // Child element is closing the dropdown on click\n        this.$once(EVENT_NAME_HIDDEN, this.focusToggler);\n      }\n    },\n    // Called only by a button that toggles the menu\n    toggle: function toggle(event) {\n      event = event || {}; // Early exit when not a click event or ENTER, SPACE or DOWN were pressed\n\n      var _event = event,\n          type = _event.type,\n          keyCode = _event.keyCode;\n\n      if (type !== 'click' && !(type === 'keydown' && [CODE_ENTER, CODE_SPACE, CODE_DOWN].indexOf(keyCode) !== -1)) {\n        /* istanbul ignore next */\n        return;\n      }\n      /* istanbul ignore next */\n\n\n      if (this.disabled) {\n        this.visible = false;\n        return;\n      }\n\n      this.$emit(EVENT_NAME_TOGGLE, event);\n      stopEvent(event); // Toggle visibility\n\n      if (this.visible) {\n        this.hide(true);\n      } else {\n        this.show();\n      }\n    },\n    // Mousedown handler for the toggle\n\n    /* istanbul ignore next */\n    onMousedown: function onMousedown(event) {\n      // We prevent the 'mousedown' event for the toggle to stop the\n      // 'focusin' event from being fired\n      // The event would otherwise be picked up by the global 'focusin'\n      // listener and there is no cross-browser solution to detect it\n      // relates to the toggle click\n      // The 'click' event will still be fired and we handle closing\n      // other dropdowns there too\n      // See https://github.com/bootstrap-vue/bootstrap-vue/issues/4328\n      stopEvent(event, {\n        propagation: false\n      });\n    },\n    // Called from dropdown menu context\n    onKeydown: function onKeydown(event) {\n      var keyCode = event.keyCode;\n\n      if (keyCode === CODE_ESC) {\n        // Close on ESC\n        this.onEsc(event);\n      } else if (keyCode === CODE_DOWN) {\n        // Down Arrow\n        this.focusNext(event, false);\n      } else if (keyCode === CODE_UP) {\n        // Up Arrow\n        this.focusNext(event, true);\n      }\n    },\n    // If user presses ESC, close the menu\n    onEsc: function onEsc(event) {\n      if (this.visible) {\n        this.visible = false;\n        stopEvent(event); // Return focus to original trigger button\n\n        this.$once(EVENT_NAME_HIDDEN, this.focusToggler);\n      }\n    },\n    // Called only in split button mode, for the split button\n    onSplitClick: function onSplitClick(event) {\n      /* istanbul ignore next */\n      if (this.disabled) {\n        this.visible = false;\n        return;\n      }\n\n      this.$emit(EVENT_NAME_CLICK, event);\n    },\n    // Shared hide handler between click-out and focus-in events\n    hideHandler: function hideHandler(event) {\n      var _this3 = this;\n\n      var target = event.target;\n\n      if (this.visible && !contains(this.$refs.menu, target) && !contains(this.toggler, target)) {\n        this.clearHideTimeout();\n        this.$_hideTimeout = setTimeout(function () {\n          return _this3.hide();\n        }, this.inNavbar ? 300 : 0);\n      }\n    },\n    // Document click-out listener\n    clickOutHandler: function clickOutHandler(event) {\n      this.hideHandler(event);\n    },\n    // Document focus-in listener\n    focusInHandler: function focusInHandler(event) {\n      this.hideHandler(event);\n    },\n    // Keyboard nav\n    focusNext: function focusNext(event, up) {\n      var _this4 = this;\n\n      // Ignore key up/down on form elements\n      var target = event.target;\n\n      if (!this.visible || event && closest(SELECTOR_FORM_CHILD, target)) {\n        /* istanbul ignore next: should never happen */\n        return;\n      }\n\n      stopEvent(event);\n      this.$nextTick(function () {\n        var items = _this4.getItems();\n\n        if (items.length < 1) {\n          /* istanbul ignore next: should never happen */\n          return;\n        }\n\n        var index = items.indexOf(target);\n\n        if (up && index > 0) {\n          index--;\n        } else if (!up && index < items.length - 1) {\n          index++;\n        }\n\n        if (index < 0) {\n          /* istanbul ignore next: should never happen */\n          index = 0;\n        }\n\n        _this4.focusItem(index, items);\n      });\n    },\n    focusItem: function focusItem(index, items) {\n      var el = items.find(function (el, i) {\n        return i === index;\n      });\n      attemptFocus(el);\n    },\n    getItems: function getItems() {\n      // Get all items\n      return filterVisibles(selectAll(SELECTOR_ITEM, this.$refs.menu));\n    },\n    focusMenu: function focusMenu() {\n      attemptFocus(this.$refs.menu);\n    },\n    focusToggler: function focusToggler() {\n      var _this5 = this;\n\n      this.$nextTick(function () {\n        attemptFocus(_this5.toggler);\n      });\n    }\n  }\n});","export var CLASS_NAME_SHOW = 'show';\nexport var CLASS_NAME_FADE = 'fade';"],"sourceRoot":""}