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

import { use } from '../utils';
import { raf, cancel } from '../utils/raf';
import { BLUE, WHITE } from '../utils/color';

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

var PERIMETER = 3140;
var PATH = 'M 530 530 m -500, 0 a 500, 500 0 1, 1 1000, 0 a 500, 500 0 1, 1 -1000, 0';

function format(rate) {
  return Math.min(Math.max(rate, 0), 100);
}

export default sfc({
  props: {
    text: String,
    value: Number,
    speed: Number,
    size: {
      type: String,
      "default": '100px'
    },
    fill: {
      type: String,
      "default": 'none'
    },
    rate: {
      type: Number,
      "default": 100
    },
    layerColor: {
      type: String,
      "default": WHITE
    },
    color: {
      type: String,
      "default": BLUE
    },
    strokeWidth: {
      type: Number,
      "default": 40
    },
    clockwise: {
      type: Boolean,
      "default": true
    }
  },
  computed: {
    style: function style() {
      return {
        width: this.size,
        height: this.size
      };
    },
    layerStyle: function layerStyle() {
      var offset = PERIMETER * (100 - this.value) / 100;
      offset = this.clockwise ? offset : PERIMETER * 2 - offset;
      return {
        stroke: "" + this.color,
        strokeDashoffset: offset + "px",
        strokeWidth: this.strokeWidth + 1 + "px"
      };
    },
    hoverStyle: function hoverStyle() {
      return {
        fill: "" + this.fill,
        stroke: "" + this.layerColor,
        strokeWidth: this.strokeWidth + "px"
      };
    }
  },
  watch: {
    rate: {
      handler: function handler() {
        this.startTime = Date.now();
        this.startRate = this.value;
        this.endRate = format(this.rate);
        this.increase = this.endRate > this.startRate;
        this.duration = Math.abs((this.startRate - this.endRate) * 1000 / this.speed);

        if (this.speed) {
          cancel(this.rafId);
          this.rafId = raf(this.animate);
        } else {
          this.$emit('input', this.endRate);
        }
      },
      immediate: true
    }
  },
  methods: {
    animate: function animate() {
      var now = Date.now();
      var progress = Math.min((now - this.startTime) / this.duration, 1);
      var rate = progress * (this.endRate - this.startRate) + this.startRate;
      this.$emit('input', format(parseFloat(rate.toFixed(1))));

      if (this.increase ? rate < this.endRate : rate > this.endRate) {
        this.rafId = raf(this.animate);
      }
    }
  },
  render: function render(h) {
    return h("div", {
      "class": bem(),
      "style": this.style
    }, [h("svg", {
      "attrs": {
        "viewBox": "0 0 1060 1060"
      }
    }, [h("path", {
      "class": bem('hover'),
      "style": this.hoverStyle,
      "attrs": {
        "d": PATH
      }
    }), h("path", {
      "class": bem('layer'),
      "style": this.layerStyle,
      "attrs": {
        "d": PATH
      }
    })]), this.slots() || this.text && h("div", {
      "class": bem('text')
    }, [this.text])]);
  }
});