video_admin_vue/node_modules/vant/es/slider/index.js

import { use } from '../utils';
import { TouchMixin } from '../mixins/touch';
import { preventDefault } from '../utils/event';

var _use = use('slider'),
    sfc = _use[0],
    bem = _use[1];

export default sfc({
  mixins: [TouchMixin],
  props: {
    min: Number,
    value: Number,
    disabled: Boolean,
    vertical: Boolean,
    activeColor: String,
    inactiveColor: String,
    max: {
      type: Number,
      "default": 100
    },
    step: {
      type: Number,
      "default": 1
    },
    barHeight: {
      type: String,
      "default": '2px'
    }
  },
  methods: {
    onTouchStart: function onTouchStart(event) {
      if (this.disabled) return;
      this.touchStart(event);
      this.startValue = this.format(this.value);
    },
    onTouchMove: function onTouchMove(event) {
      preventDefault(event, true);
      if (this.disabled) return;
      this.touchMove(event);
      var rect = this.$el.getBoundingClientRect();
      var delta = this.vertical ? this.deltaY : this.deltaX;
      var total = this.vertical ? rect.height : rect.width;
      var diff = delta / total * 100;
      this.newValue = this.startValue + diff;
      this.updateValue(this.newValue);
    },
    onTouchEnd: function onTouchEnd() {
      if (this.disabled) return;
      this.updateValue(this.newValue, true);
    },
    onClick: function onClick(event) {
      event.stopPropagation();
      if (this.disabled) return;
      var rect = this.$el.getBoundingClientRect();
      var delta = this.vertical ? event.clientY - rect.top : event.clientX - rect.left;
      var total = this.vertical ? rect.height : rect.width;
      var value = delta / total * 100;
      this.updateValue(value, true);
    },
    updateValue: function updateValue(value, end) {
      value = this.format(value);
      this.$emit('input', value);

      if (end) {
        this.$emit('change', value);
      }
    },
    format: function format(value) {
      return Math.round(Math.max(this.min, Math.min(value, this.max)) / this.step) * this.step;
    }
  },
  render: function render(h) {
    var _barStyle;

    var vertical = this.vertical;
    var style = {
      background: this.inactiveColor
    };
    var mainAxis = vertical ? 'height' : 'width';
    var crossAxis = vertical ? 'width' : 'height';
    var barStyle = (_barStyle = {}, _barStyle[mainAxis] = this.format(this.value) + "%", _barStyle[crossAxis] = this.barHeight, _barStyle.background = this.activeColor, _barStyle);
    return h("div", {
      "style": style,
      "class": bem({
        disabled: this.disabled,
        vertical: vertical
      }),
      "on": {
        "click": this.onClick
      }
    }, [h("div", {
      "class": bem('bar'),
      "style": barStyle
    }, [h("div", {
      "class": bem('button-wrapper'),
      "on": {
        "touchstart": this.onTouchStart,
        "touchmove": this.onTouchMove,
        "touchend": this.onTouchEnd,
        "touchcancel": this.onTouchEnd
      }
    }, [this.slots('button') || h("div", {
      "class": bem('button')
    })])])]);
  }
});