@icreate/ics-mui/dist/packages/Column-BdcOilw3.js

京东风格的轻量级移动端 Vue2、Vue3 组件库（支持小程序开发）

var __defProp = Object.defineProperty;
var __defProps = Object.defineProperties;
var __getOwnPropDescs = Object.getOwnPropertyDescriptors;
var __getOwnPropSymbols = Object.getOwnPropertySymbols;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __propIsEnum = Object.prototype.propertyIsEnumerable;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __spreadValues = (a, b) => {
  for (var prop in b || (b = {}))
    if (__hasOwnProp.call(b, prop))
      __defNormalProp(a, prop, b[prop]);
  if (__getOwnPropSymbols)
    for (var prop of __getOwnPropSymbols(b)) {
      if (__propIsEnum.call(b, prop))
        __defNormalProp(a, prop, b[prop]);
    }
  return a;
};
var __spreadProps = (a, b) => __defProps(a, __getOwnPropDescs(b));
import { reactive, ref, computed, watch, onMounted, toRefs, openBlock, createElementBlock, createElementVNode, normalizeStyle, Fragment, renderList, normalizeClass, toDisplayString, createCommentVNode } from "vue";
import { c as createComponent } from "./component-Dt_P47FR.js";
import { d as preventDefault, e as clamp } from "./util-Eu153hxh.js";
import { p as pxCheck } from "./pxCheck-DN6FYV6q.js";
import { u as useTouch } from "./index-I8tfW3Kf.js";
import { _ as _export_sfc } from "./_plugin-vue_export-helper-1tPrXgE0.js";
const { create } = createComponent("picker-column");
const _sfc_main = create({
  props: {
    direction: {
      type: String,
      default: "horizontal"
      // vertical旋转90deg方向
    },
    // 当前选中项
    value: [String, Number],
    columnsType: String,
    column: {
      type: Array,
      default: () => []
    },
    // 是否开启3D效果
    threeDimensional: {
      type: Boolean,
      default: true
    },
    swipeDuration: {
      type: [Number, String],
      default: 1e3
    },
    visibleOptionNum: {
      type: [Number, String],
      default: 7
    },
    optionHeight: {
      type: [Number, String],
      default: 36
    },
    fieldNames: {
      type: Object,
      default: () => ({})
    },
    // 特殊环境判断
    taro: {
      type: Boolean,
      default: false
    }
  },
  emits: ["click", "change"],
  setup(props, { emit }) {
    const touch = useTouch();
    const state = reactive({
      touchParams: {
        startX: 0,
        startY: 0,
        endY: 0,
        endX: 0,
        startTime: 0,
        endTime: 0,
        lastX: 0,
        lastY: 0,
        lastTime: 0
      },
      currIndex: 1,
      transformY: 0,
      scrollDistance: 0,
      rotation: 20
    });
    const roller = ref(null);
    const moving = ref(false);
    const touchDeg = ref(0);
    const touchTime = ref(0);
    const DEFAULT_DURATION = 200;
    const INERTIA_TIME = 300;
    const INERTIA_DISTANCE = 15;
    const touchRollerStyle = computed(() => {
      return {
        transition: `transform ${touchTime.value}ms cubic-bezier(0.17, 0.89, 0.45, 1)`,
        transform: `rotate3d(1, 0, 0, ${touchDeg.value})`,
        top: `calc(50% - ${+props.optionHeight / 2}px)`
      };
    });
    const touchTileStyle = computed(() => {
      const { optionHeight } = props;
      return {
        transition: `transform ${touchTime.value}ms cubic-bezier(0.17, 0.89, 0.45, 1)`,
        transform: `translate3d(0, ${state.scrollDistance}px, 0)`,
        top: `calc(50% - ${+optionHeight / 2}px)`,
        height: `${optionHeight}px`
      };
    });
    const setRollerStyle = (index) => {
      return `transform: rotate3d(1, 0, 0, ${-state.rotation * index}deg) translate3d(0px, 0px, 104px)`;
    };
    const maskStyles = computed(() => {
      return {
        backgroundSize: `100% ${(+props.visibleOptionNum - 1) * +props.optionHeight / 2}px`
      };
    });
    const onTouchStart = (event) => {
      touch.start(event);
      if (moving.value && !props.taro) {
        const dom = roller.value;
        const { transform } = window.getComputedStyle(dom);
        if (props.threeDimensional) {
          const circle = Math.floor(parseInt(touchDeg.value) / 360);
          const cos = +transform.split(", ")[5];
          const sin = +transform.split(", ")[6] < 0 ? 180 : 0;
          const endDeg = circle * 360 + Math.acos(cos) / Math.PI * 180 + sin;
          state.scrollDistance = -Math.abs((endDeg / state.rotation - 1) * +props.optionHeight);
        } else {
          state.scrollDistance = +transform.slice(7, transform.length - 1).split(", ")[5];
        }
      }
      preventDefault(event, true);
      state.touchParams.startY = touch.deltaY.value;
      state.touchParams.startX = touch.deltaX.value;
      state.touchParams.startTime = Date.now();
      state.transformY = state.scrollDistance;
    };
    const onTouchMove = (event) => {
      touch.move(event);
      if (touch.isVertical()) {
        console.log("touch is vertical");
        moving.value = true;
        preventDefault(event, true);
      }
      state.touchParams.lastY = touch.deltaY.value;
      state.touchParams.lastX = touch.deltaX.value;
      let move = 0;
      if (props.direction === "horizontal") {
        move = state.touchParams.lastY - state.touchParams.startY;
      }
      if (props.direction === "vertical") {
        move = state.touchParams.startX - state.touchParams.lastX;
      }
      setMove(move);
    };
    const onTouchEnd = () => {
      state.touchParams.lastY = touch.deltaY.value;
      state.touchParams.lastX = touch.deltaX.value;
      state.touchParams.lastTime = Date.now();
      let move = 0;
      if (props.direction === "horizontal") {
        move = state.touchParams.lastY - state.touchParams.startY;
      }
      if (props.direction === "vertical") {
        move = state.touchParams.startX - state.touchParams.lastX;
      }
      let moveTime = state.touchParams.lastTime - state.touchParams.startTime;
      if (moveTime <= INERTIA_TIME && Math.abs(move) > INERTIA_DISTANCE) {
        const distance = momentum(move, moveTime);
        setMove(distance, "end", +props.swipeDuration);
        return;
      } else {
        setMove(move, "end");
      }
      setTimeout(() => {
        touch.reset();
        moving.value = false;
      }, 0);
    };
    const momentum = (distance, duration) => {
      const speed = Math.abs(distance / duration);
      distance = speed / 3e-3 * (distance < 0 ? -1 : 1);
      return distance;
    };
    const isHidden = (index) => {
      if (index >= state.currIndex + 8 || index <= state.currIndex - 8) {
        return true;
      } else {
        return false;
      }
    };
    const setTransform = (translateY = 0, type, time = DEFAULT_DURATION, deg) => {
      if (type === "end") {
        touchTime.value = time;
      } else {
        touchTime.value = 0;
      }
      touchDeg.value = deg;
      state.scrollDistance = translateY;
    };
    const setMove = (move, type, time) => {
      const { optionHeight } = props;
      let updateMove = move + state.transformY;
      if (type === "end") {
        if (updateMove > 0) {
          updateMove = 0;
        }
        if (updateMove < -(props.column.length - 1) * +optionHeight) {
          updateMove = -(props.column.length - 1) * +optionHeight;
        }
        let endMove = Math.round(updateMove / +optionHeight) * +optionHeight;
        let deg = `${(Math.abs(Math.round(endMove / +optionHeight)) + 1) * state.rotation}deg`;
        setTransform(endMove, type, time, deg);
        state.currIndex = Math.abs(Math.round(endMove / +optionHeight)) + 1;
      } else {
        let deg = 0;
        let currentDeg = (-updateMove / +optionHeight + 1) * state.rotation;
        const maxDeg = (props.column.length + 1) * state.rotation;
        const minDeg = 0;
        deg = clamp(currentDeg, minDeg, maxDeg);
        if (minDeg < deg && deg < maxDeg) {
          setTransform(updateMove, null, void 0, deg + "deg");
          state.currIndex = Math.abs(Math.round(updateMove / +optionHeight)) + 1;
        }
      }
    };
    const setChooseValue = () => {
      emit("change", props.column[state.currIndex - 1]);
    };
    const modifyStatus = (type) => {
      const { column } = props;
      let index = column.findIndex((columnItem) => columnItem[props.fieldNames.value] === props.value);
      state.currIndex = index === -1 ? 1 : index + 1;
      let move = index === -1 ? 0 : index * +props.optionHeight;
      type && setChooseValue();
      setMove(-move);
    };
    const stopMomentum = () => {
      if (!moving.value && !touchTime.value)
        return;
      moving.value = false;
      touchTime.value = 0;
      setChooseValue();
    };
    watch(
      () => props.column,
      () => {
        if (props.column && props.column.length > 0) {
          state.transformY = 0;
          modifyStatus(false);
        }
      },
      {
        deep: true
      }
    );
    watch(
      () => props.value,
      () => {
        state.transformY = 0;
        modifyStatus(false);
      },
      {
        deep: true,
        immediate: true
      }
    );
    onMounted(() => {
      modifyStatus(true);
    });
    return __spreadProps(__spreadValues(__spreadValues({}, toRefs(state)), toRefs(props)), {
      setRollerStyle,
      isHidden,
      roller,
      onTouchStart,
      onTouchMove,
      onTouchEnd,
      touchRollerStyle,
      touchTileStyle,
      setMove,
      stopMomentum,
      pxCheck,
      maskStyles
    });
  }
});
function _sfc_render(_ctx, _cache, $props, $setup, $data, $options) {
  return openBlock(), createElementBlock("view", {
    class: "nut-picker__list",
    onTouchstart: _cache[1] || (_cache[1] = (...args) => _ctx.onTouchStart && _ctx.onTouchStart(...args)),
    onTouchmove: _cache[2] || (_cache[2] = (...args) => _ctx.onTouchMove && _ctx.onTouchMove(...args)),
    onTouchend: _cache[3] || (_cache[3] = (...args) => _ctx.onTouchEnd && _ctx.onTouchEnd(...args))
  }, [
    createElementVNode("view", {
      ref: "roller",
      class: "nut-picker-roller",
      style: normalizeStyle(_ctx.threeDimensional ? _ctx.touchRollerStyle : _ctx.touchTileStyle),
      onTransitionend: _cache[0] || (_cache[0] = (...args) => _ctx.stopMomentum && _ctx.stopMomentum(...args))
    }, [
      (openBlock(true), createElementBlock(Fragment, null, renderList(_ctx.column, (item, index) => {
        var _a;
        return openBlock(), createElementBlock(Fragment, {
          key: (_a = item[_ctx.fieldNames.value]) != null ? _a : index
        }, [
          item && item[_ctx.fieldNames.text] && _ctx.threeDimensional ? (openBlock(), createElementBlock("view", {
            key: 0,
            class: normalizeClass(["nut-picker-roller-item", {
              "nut-picker-roller-item-hidden": _ctx.isHidden(index + 1),
              [item[_ctx.fieldNames.className]]: item[_ctx.fieldNames.className]
            }]),
            style: normalizeStyle(_ctx.setRollerStyle(index + 1))
          }, toDisplayString(item[_ctx.fieldNames.text]), 7)) : createCommentVNode("", true),
          item && item[_ctx.fieldNames.text] && !_ctx.threeDimensional ? (openBlock(), createElementBlock("view", {
            key: 1,
            class: normalizeClass(["nut-picker-roller-item-tile", {
              [item[_ctx.fieldNames.className]]: item[_ctx.fieldNames.className]
            }]),
            style: normalizeStyle({ height: _ctx.pxCheck(_ctx.optionHeight), lineHeight: _ctx.pxCheck(_ctx.optionHeight) })
          }, toDisplayString(item[_ctx.fieldNames.text]), 7)) : createCommentVNode("", true)
        ], 64);
      }), 128))
    ], 36),
    createElementVNode("view", {
      class: "nut-picker-roller-mask",
      style: normalizeStyle(_ctx.maskStyles)
    }, null, 4)
  ], 32);
}
const IcsPickerColumn = /* @__PURE__ */ _export_sfc(_sfc_main, [["render", _sfc_render]]);
export {
  IcsPickerColumn as I
};