bootstrap-view/esm/components/link/link.js

With more than 85 components, over 45 available plugins, several directives, and 1000+ icons, BootstrapVue provides one of the most comprehensive implementations of the Bootstrap v4 component and grid system available for Vue.js v2.6, complete with extens

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import { extend } from '../../vue';
import { NAME_LINK } from '../../constants/components';
import { EVENT_NAME_CLICK } from '../../constants/events';
import { PROP_TYPE_ARRAY_STRING, PROP_TYPE_BOOLEAN, PROP_TYPE_OBJECT_STRING, PROP_TYPE_STRING } from '../../constants/props';
import { concat } from '../../utils/array';
import { attemptBlur, attemptFocus, isTag } from '../../utils/dom';
import { getRootEventName, stopEvent } from '../../utils/events';
import { isBoolean, isEvent, isFunction, isUndefined } from '../../utils/inspect';
import { omit, sortKeys } from '../../utils/object';
import { makeProp, makePropsConfigurable, pluckProps } from '../../utils/props';
import { computeHref, computeRel, computeTag, isRouterLink as _isRouterLink } from '../../utils/router';
import { attrsMixin } from '../../mixins/attrs';
import { listenOnRootMixin } from '../../mixins/listen-on-root';
import { listenersMixin } from '../../mixins/listeners';
import { normalizeSlotMixin } from '../../mixins/normalize-slot';

// --- Constants ---

var ROOT_EVENT_NAME_CLICKED = getRootEventName(NAME_LINK, 'clicked');

// --- Props ---

// `<router-link>` specific props
export var routerLinkProps = {
  activeClass: makeProp(PROP_TYPE_STRING),
  append: makeProp(PROP_TYPE_BOOLEAN, false),
  event: makeProp(PROP_TYPE_ARRAY_STRING),
  exact: makeProp(PROP_TYPE_BOOLEAN, false),
  exactActiveClass: makeProp(PROP_TYPE_STRING),
  exactPath: makeProp(PROP_TYPE_BOOLEAN, false),
  exactPathActiveClass: makeProp(PROP_TYPE_STRING),
  replace: makeProp(PROP_TYPE_BOOLEAN, false),
  routerTag: makeProp(PROP_TYPE_STRING),
  to: makeProp(PROP_TYPE_OBJECT_STRING)
};

// `<nuxt-link>` specific props
export var nuxtLinkProps = {
  noPrefetch: makeProp(PROP_TYPE_BOOLEAN, false),
  // Must be `null` to fall back to the value defined in the
  // `nuxt.config.js` configuration file for `router.prefetchLinks`
  // We convert `null` to `undefined`, so that Nuxt.js will use the
  // compiled default
  // Vue treats `undefined` as default of `false` for Boolean props,
  // so we must set it as `null` here to be a true tri-state prop
  prefetch: makeProp(PROP_TYPE_BOOLEAN, null)
};

// All `<b-link>` props
export var props = makePropsConfigurable(sortKeys(_objectSpread(_objectSpread(_objectSpread({}, nuxtLinkProps), routerLinkProps), {}, {
  active: makeProp(PROP_TYPE_BOOLEAN, false),
  disabled: makeProp(PROP_TYPE_BOOLEAN, false),
  href: makeProp(PROP_TYPE_STRING),
  // Must be `null` if no value provided
  rel: makeProp(PROP_TYPE_STRING, null),
  // To support 3rd party router links based on `<router-link>` (i.e. `g-link` for Gridsome)
  // Default is to auto choose between `<router-link>` and `<nuxt-link>`
  // Gridsome doesn't provide a mechanism to auto detect and has caveats
  // such as not supporting FQDN URLs or hash only URLs
  routerComponentName: makeProp(PROP_TYPE_STRING),
  target: makeProp(PROP_TYPE_STRING, '_self')
})), NAME_LINK);

// --- Main component ---

// @vue/component
export var BLink = /*#__PURE__*/extend({
  name: NAME_LINK,
  // Mixin order is important!
  mixins: [attrsMixin, listenersMixin, listenOnRootMixin, normalizeSlotMixin],
  inheritAttrs: false,
  props: props,
  computed: {
    computedTag: function computedTag() {
      // We don't pass `this` as the first arg as we need reactivity of the props
      var to = this.to,
        disabled = this.disabled,
        routerComponentName = this.routerComponentName;
      return computeTag({
        to: to,
        disabled: disabled,
        routerComponentName: routerComponentName
      }, this);
    },
    isRouterLink: function isRouterLink() {
      return _isRouterLink(this.computedTag);
    },
    computedRel: function computedRel() {
      // We don't pass `this` as the first arg as we need reactivity of the props
      var target = this.target,
        rel = this.rel;
      return computeRel({
        target: target,
        rel: rel
      });
    },
    computedHref: function computedHref() {
      // We don't pass `this` as the first arg as we need reactivity of the props
      var to = this.to,
        href = this.href;
      return computeHref({
        to: to,
        href: href
      }, this.computedTag);
    },
    computedProps: function computedProps() {
      var event = this.event,
        prefetch = this.prefetch,
        routerTag = this.routerTag;
      return this.isRouterLink ? _objectSpread(_objectSpread(_objectSpread(_objectSpread({}, pluckProps(omit(_objectSpread(_objectSpread({}, routerLinkProps), this.computedTag === 'nuxt-link' ? nuxtLinkProps : {}), ['event', 'prefetch', 'routerTag']), this)), event ? {
        event: event
      } : {}), isBoolean(prefetch) ? {
        prefetch: prefetch
      } : {}), routerTag ? {
        tag: routerTag
      } : {}) : {};
    },
    computedAttrs: function computedAttrs() {
      var bvAttrs = this.bvAttrs,
        href = this.computedHref,
        rel = this.computedRel,
        disabled = this.disabled,
        target = this.target,
        routerTag = this.routerTag,
        isRouterLink = this.isRouterLink;
      return _objectSpread(_objectSpread(_objectSpread(_objectSpread({}, bvAttrs), href ? {
        href: href
      } : {}), isRouterLink && routerTag && !isTag(routerTag, 'a') ? {} : {
        rel: rel,
        target: target
      }), {}, {
        tabindex: disabled ? '-1' : isUndefined(bvAttrs.tabindex) ? null : bvAttrs.tabindex,
        'aria-disabled': disabled ? 'true' : null
      });
    },
    computedListeners: function computedListeners() {
      return _objectSpread(_objectSpread({}, this.bvListeners), {}, {
        // We want to overwrite any click handler since our callback
        // will invoke the user supplied handler(s) if `!this.disabled`
        click: this.onClick
      });
    }
  },
  methods: {
    onClick: function onClick(event) {
      var _arguments = arguments;
      var eventIsEvent = isEvent(event);
      var isRouterLink = this.isRouterLink;
      var suppliedHandler = this.bvListeners.click;
      if (eventIsEvent && this.disabled) {
        // Stop event from bubbling up
        // Kill the event loop attached to this specific `EventTarget`
        // Needed to prevent `vue-router` for doing its thing
        stopEvent(event, {
          immediatePropagation: true
        });
      } else {
        // Router links do not emit instance `click` events, so we
        // add in an `$emit('click', event)` on its Vue instance
        //
        // seems not to be required for Vue3 compat build
        /* istanbul ignore next: difficult to test, but we know it works */
        if (isRouterLink) {
          var _event$currentTarget$;
          (_event$currentTarget$ = event.currentTarget.__vue__) === null || _event$currentTarget$ === void 0 || _event$currentTarget$.$emit(EVENT_NAME_CLICK, event);
        }
        // Call the suppliedHandler(s), if any provided
        concat(suppliedHandler).filter(function (h) {
          return isFunction(h);
        }).forEach(function (handler) {
          handler.apply(void 0, _toConsumableArray(_arguments));
        });
        // Emit the global `$root` click event
        this.emitOnRoot(ROOT_EVENT_NAME_CLICKED, event);
        // TODO: Remove deprecated 'clicked::link' event with next major release
        this.emitOnRoot('clicked::link', event);
      }
      // Stop scroll-to-top behavior or navigation on
      // regular links when href is just '#'
      if (eventIsEvent && !isRouterLink && this.computedHref === '#') {
        stopEvent(event, {
          propagation: false
        });
      }
    },
    focus: function focus() {
      attemptFocus(this.$el);
    },
    blur: function blur() {
      attemptBlur(this.$el);
    }
  },
  render: function render(h) {
    var active = this.active,
      disabled = this.disabled;
    return h(this.computedTag, _defineProperty({
      class: {
        active: active,
        disabled: disabled
      },
      attrs: this.computedAttrs,
      props: this.computedProps
    }, this.isRouterLink ? 'nativeOn' : 'on', this.computedListeners), this.normalizeSlot());
  }
});