code-lab/node_modules/vuetify/lib/components/VWindow/VWindow.mjs

import { withDirectives as _withDirectives, resolveDirective as _resolveDirective, createVNode as _createVNode } from "vue";
// Styles
import "./VWindow.css";

// Components
import { VBtn } from "../VBtn/index.mjs"; // Composables
import { makeComponentProps } from "../../composables/component.mjs";
import { useGroup } from "../../composables/group.mjs";
import { useLocale, useRtl } from "../../composables/locale.mjs";
import { makeTagProps } from "../../composables/tag.mjs";
import { makeThemeProps, provideTheme } from "../../composables/theme.mjs"; // Directives
import { Touch } from "../../directives/touch/index.mjs"; // Utilities
import { computed, provide, ref, shallowRef, watch } from 'vue';
import { genericComponent, propsFactory, useRender } from "../../util/index.mjs"; // Types
export const VWindowSymbol = Symbol.for('vuetify:v-window');
export const VWindowGroupSymbol = Symbol.for('vuetify:v-window-group');
export const makeVWindowProps = propsFactory({
  continuous: Boolean,
  nextIcon: {
    type: [Boolean, String, Function, Object],
    default: '$next'
  },
  prevIcon: {
    type: [Boolean, String, Function, Object],
    default: '$prev'
  },
  reverse: Boolean,
  showArrows: {
    type: [Boolean, String],
    validator: v => typeof v === 'boolean' || v === 'hover'
  },
  touch: {
    type: [Object, Boolean],
    default: undefined
  },
  direction: {
    type: String,
    default: 'horizontal'
  },
  modelValue: null,
  disabled: Boolean,
  selectedClass: {
    type: String,
    default: 'v-window-item--active'
  },
  // TODO: mandatory should probably not be exposed but do this for now
  mandatory: {
    type: [Boolean, String],
    default: 'force'
  },
  ...makeComponentProps(),
  ...makeTagProps(),
  ...makeThemeProps()
}, 'VWindow');
export const VWindow = genericComponent()({
  name: 'VWindow',
  directives: {
    Touch
  },
  props: makeVWindowProps(),
  emits: {
    'update:modelValue': value => true
  },
  setup(props, _ref) {
    let {
      slots
    } = _ref;
    const {
      themeClasses
    } = provideTheme(props);
    const {
      isRtl
    } = useRtl();
    const {
      t
    } = useLocale();
    const group = useGroup(props, VWindowGroupSymbol);
    const rootRef = ref();
    const isRtlReverse = computed(() => isRtl.value ? !props.reverse : props.reverse);
    const isReversed = shallowRef(false);
    const transition = computed(() => {
      const axis = props.direction === 'vertical' ? 'y' : 'x';
      const reverse = isRtlReverse.value ? !isReversed.value : isReversed.value;
      const direction = reverse ? '-reverse' : '';
      return `v-window-${axis}${direction}-transition`;
    });
    const transitionCount = shallowRef(0);
    const transitionHeight = ref(undefined);
    const activeIndex = computed(() => {
      return group.items.value.findIndex(item => group.selected.value.includes(item.id));
    });
    watch(activeIndex, (newVal, oldVal) => {
      const itemsLength = group.items.value.length;
      const lastIndex = itemsLength - 1;
      if (itemsLength <= 2) {
        isReversed.value = newVal < oldVal;
      } else if (newVal === lastIndex && oldVal === 0) {
        isReversed.value = true;
      } else if (newVal === 0 && oldVal === lastIndex) {
        isReversed.value = false;
      } else {
        isReversed.value = newVal < oldVal;
      }
    });
    provide(VWindowSymbol, {
      transition,
      isReversed,
      transitionCount,
      transitionHeight,
      rootRef
    });
    const canMoveBack = computed(() => props.continuous || activeIndex.value !== 0);
    const canMoveForward = computed(() => props.continuous || activeIndex.value !== group.items.value.length - 1);
    function prev() {
      canMoveBack.value && group.prev();
    }
    function next() {
      canMoveForward.value && group.next();
    }
    const arrows = computed(() => {
      const arrows = [];
      const prevProps = {
        icon: isRtl.value ? props.nextIcon : props.prevIcon,
        class: `v-window__${isRtlReverse.value ? 'right' : 'left'}`,
        onClick: group.prev,
        'aria-label': t('$vuetify.carousel.prev')
      };
      arrows.push(canMoveBack.value ? slots.prev ? slots.prev({
        props: prevProps
      }) : _createVNode(VBtn, prevProps, null) : _createVNode("div", null, null));
      const nextProps = {
        icon: isRtl.value ? props.prevIcon : props.nextIcon,
        class: `v-window__${isRtlReverse.value ? 'left' : 'right'}`,
        onClick: group.next,
        'aria-label': t('$vuetify.carousel.next')
      };
      arrows.push(canMoveForward.value ? slots.next ? slots.next({
        props: nextProps
      }) : _createVNode(VBtn, nextProps, null) : _createVNode("div", null, null));
      return arrows;
    });
    const touchOptions = computed(() => {
      if (props.touch === false) return props.touch;
      const options = {
        left: () => {
          isRtlReverse.value ? prev() : next();
        },
        right: () => {
          isRtlReverse.value ? next() : prev();
        },
        start: _ref2 => {
          let {
            originalEvent
          } = _ref2;
          originalEvent.stopPropagation();
        }
      };
      return {
        ...options,
        ...(props.touch === true ? {} : props.touch)
      };
    });
    useRender(() => _withDirectives(_createVNode(props.tag, {
      "ref": rootRef,
      "class": ['v-window', {
        'v-window--show-arrows-on-hover': props.showArrows === 'hover'
      }, themeClasses.value, props.class],
      "style": props.style
    }, {
      default: () => [_createVNode("div", {
        "class": "v-window__container",
        "style": {
          height: transitionHeight.value
        }
      }, [slots.default?.({
        group
      }), props.showArrows !== false && _createVNode("div", {
        "class": "v-window__controls"
      }, [arrows.value])]), slots.additional?.({
        group
      })]
    }), [[_resolveDirective("touch"), touchOptions.value]]));
    return {
      group
    };
  }
});
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