ant-design-vue/es/vc-slider/src/Slider.js

An enterprise-class UI design language and Vue-based implementation

import _objectSpread from "@babel/runtime/helpers/esm/objectSpread2";
import { createVNode as _createVNode } from "vue";
import PropTypes from '../../_util/vue-types';
import BaseMixin from '../../_util/BaseMixin';
import { hasProp } from '../../_util/props-util';
import Track from './common/Track';
import createSlider from './common/createSlider';
import * as utils from './utils';
import { defineComponent } from 'vue';
var Slider = defineComponent({
  compatConfig: {
    MODE: 3
  },
  name: 'Slider',
  mixins: [BaseMixin],
  inheritAttrs: false,
  props: {
    defaultValue: Number,
    value: Number,
    disabled: {
      type: Boolean,
      default: undefined
    },
    autofocus: {
      type: Boolean,
      default: undefined
    },
    tabindex: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
    reverse: {
      type: Boolean,
      default: undefined
    },
    min: Number,
    max: Number,
    ariaLabelForHandle: String,
    ariaLabelledByForHandle: String,
    ariaValueTextFormatterForHandle: String,
    startPoint: Number
  },
  emits: ['beforeChange', 'afterChange', 'change'],
  data: function data() {
    var defaultValue = this.defaultValue !== undefined ? this.defaultValue : this.min;
    var value = this.value !== undefined ? this.value : defaultValue;
    return {
      sValue: this.trimAlignValue(value),
      dragging: false
    };
  },
  watch: {
    value: {
      handler: function handler(val) {
        this.setChangeValue(val);
      },
      deep: true
    },
    min: function min() {
      var sValue = this.sValue;
      this.setChangeValue(sValue);
    },
    max: function max() {
      var sValue = this.sValue;
      this.setChangeValue(sValue);
    }
  },
  methods: {
    setChangeValue: function setChangeValue(value) {
      var newValue = value !== undefined ? value : this.sValue;
      var nextValue = this.trimAlignValue(newValue, this.$props);
      if (nextValue === this.sValue) return;
      this.setState({
        sValue: nextValue
      });
      if (utils.isValueOutOfRange(newValue, this.$props)) {
        this.$emit('change', nextValue);
      }
    },
    onChange: function onChange(state) {
      var isNotControlled = !hasProp(this, 'value');
      var nextState = state.sValue > this.max ? _objectSpread(_objectSpread({}, state), {}, {
        sValue: this.max
      }) : state;
      if (isNotControlled) {
        this.setState(nextState);
      }
      var changedValue = nextState.sValue;
      this.$emit('change', changedValue);
    },
    onStart: function onStart(position) {
      this.setState({
        dragging: true
      });
      var sValue = this.sValue;
      this.$emit('beforeChange', sValue);
      var value = this.calcValueByPos(position);
      this.startValue = value;
      this.startPosition = position;
      if (value === sValue) return;
      this.prevMovedHandleIndex = 0;
      this.onChange({
        sValue: value
      });
    },
    onEnd: function onEnd(force) {
      var dragging = this.dragging;
      this.removeDocumentEvents();
      if (dragging || force) {
        this.$emit('afterChange', this.sValue);
      }
      this.setState({
        dragging: false
      });
    },
    onMove: function onMove(e, position) {
      utils.pauseEvent(e);
      var sValue = this.sValue;
      var value = this.calcValueByPos(position);
      if (value === sValue) return;
      this.onChange({
        sValue: value
      });
    },
    onKeyboard: function onKeyboard(e) {
      var _this$$props = this.$props,
        reverse = _this$$props.reverse,
        vertical = _this$$props.vertical;
      var valueMutator = utils.getKeyboardValueMutator(e, vertical, reverse);
      if (valueMutator) {
        utils.pauseEvent(e);
        var sValue = this.sValue;
        var mutatedValue = valueMutator(sValue, this.$props);
        var value = this.trimAlignValue(mutatedValue);
        if (value === sValue) return;
        this.onChange({
          sValue: value
        });
        this.$emit('afterChange', value);
        this.onEnd();
      }
    },
    getLowerBound: function getLowerBound() {
      var minPoint = this.$props.startPoint || this.$props.min;
      return this.$data.sValue > minPoint ? minPoint : this.$data.sValue;
    },
    getUpperBound: function getUpperBound() {
      if (this.$data.sValue < this.$props.startPoint) {
        return this.$props.startPoint;
      }
      return this.$data.sValue;
    },
    trimAlignValue: function trimAlignValue(v) {
      var nextProps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      if (v === null) {
        return null;
      }
      var mergedProps = _objectSpread(_objectSpread({}, this.$props), nextProps);
      var val = utils.ensureValueInRange(v, mergedProps);
      return utils.ensureValuePrecision(val, mergedProps);
    },
    getTrack: function getTrack(_ref) {
      var prefixCls = _ref.prefixCls,
        reverse = _ref.reverse,
        vertical = _ref.vertical,
        included = _ref.included,
        minimumTrackStyle = _ref.minimumTrackStyle,
        mergedTrackStyle = _ref.mergedTrackStyle,
        length = _ref.length,
        offset = _ref.offset;
      return _createVNode(Track, {
        "class": "".concat(prefixCls, "-track"),
        "vertical": vertical,
        "included": included,
        "offset": offset,
        "reverse": reverse,
        "length": length,
        "style": _objectSpread(_objectSpread({}, minimumTrackStyle), mergedTrackStyle)
      }, null);
    },
    renderSlider: function renderSlider() {
      var _this = this;
      var prefixCls = this.prefixCls,
        vertical = this.vertical,
        included = this.included,
        disabled = this.disabled,
        minimumTrackStyle = this.minimumTrackStyle,
        trackStyle = this.trackStyle,
        handleStyle = this.handleStyle,
        tabindex = this.tabindex,
        ariaLabelForHandle = this.ariaLabelForHandle,
        ariaLabelledByForHandle = this.ariaLabelledByForHandle,
        ariaValueTextFormatterForHandle = this.ariaValueTextFormatterForHandle,
        min = this.min,
        max = this.max,
        startPoint = this.startPoint,
        reverse = this.reverse,
        handle = this.handle,
        defaultHandle = this.defaultHandle;
      var handleGenerator = handle || defaultHandle;
      var sValue = this.sValue,
        dragging = this.dragging;
      var offset = this.calcOffset(sValue);
      var handles = handleGenerator({
        class: "".concat(prefixCls, "-handle"),
        prefixCls: prefixCls,
        vertical: vertical,
        offset: offset,
        value: sValue,
        dragging: dragging,
        disabled: disabled,
        min: min,
        max: max,
        reverse: reverse,
        index: 0,
        tabindex: tabindex,
        ariaLabel: ariaLabelForHandle,
        ariaLabelledBy: ariaLabelledByForHandle,
        ariaValueTextFormatter: ariaValueTextFormatterForHandle,
        style: handleStyle[0] || handleStyle,
        ref: function ref(h) {
          return _this.saveHandle(0, h);
        },
        onFocus: this.onFocus,
        onBlur: this.onBlur
      });
      var trackOffset = startPoint !== undefined ? this.calcOffset(startPoint) : 0;
      var mergedTrackStyle = trackStyle[0] || trackStyle;
      return {
        tracks: this.getTrack({
          prefixCls: prefixCls,
          reverse: reverse,
          vertical: vertical,
          included: included,
          offset: trackOffset,
          minimumTrackStyle: minimumTrackStyle,
          mergedTrackStyle: mergedTrackStyle,
          length: offset - trackOffset
        }),
        handles: handles
      };
    }
  }
});
export default createSlider(Slider);