element-plus/lib/components/scrollbar/src/bar2.js

A Component Library for Vue 3

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var vue = require('vue');
var util = require('./util.js');
var thumb = require('./thumb2.js');
var bar = require('./bar.js');
var constants = require('./constants.js');
var pluginVue_exportHelper = require('../../../_virtual/plugin-vue_export-helper.js');

const _sfc_main = /* @__PURE__ */ vue.defineComponent({
  __name: "bar",
  props: bar.barProps,
  setup(__props, { expose }) {
    const props = __props;
    const scrollbar = vue.inject(constants.scrollbarContextKey);
    const moveX = vue.ref(0);
    const moveY = vue.ref(0);
    const sizeWidth = vue.ref("");
    const sizeHeight = vue.ref("");
    const ratioY = vue.ref(1);
    const ratioX = vue.ref(1);
    const handleScroll = (wrap) => {
      if (wrap) {
        const offsetHeight = wrap.offsetHeight - util.GAP;
        const offsetWidth = wrap.offsetWidth - util.GAP;
        moveY.value = wrap.scrollTop * 100 / offsetHeight * ratioY.value;
        moveX.value = wrap.scrollLeft * 100 / offsetWidth * ratioX.value;
      }
    };
    const update = () => {
      const wrap = scrollbar == null ? void 0 : scrollbar.wrapElement;
      if (!wrap)
        return;
      const offsetHeight = wrap.offsetHeight - util.GAP;
      const offsetWidth = wrap.offsetWidth - util.GAP;
      const originalHeight = offsetHeight ** 2 / wrap.scrollHeight;
      const originalWidth = offsetWidth ** 2 / wrap.scrollWidth;
      const height = Math.max(originalHeight, props.minSize);
      const width = Math.max(originalWidth, props.minSize);
      ratioY.value = originalHeight / (offsetHeight - originalHeight) / (height / (offsetHeight - height));
      ratioX.value = originalWidth / (offsetWidth - originalWidth) / (width / (offsetWidth - width));
      sizeHeight.value = height + util.GAP < offsetHeight ? `${height}px` : "";
      sizeWidth.value = width + util.GAP < offsetWidth ? `${width}px` : "";
    };
    expose({
      handleScroll,
      update
    });
    return (_ctx, _cache) => {
      return vue.openBlock(), vue.createElementBlock(vue.Fragment, null, [
        vue.createVNode(thumb["default"], {
          move: moveX.value,
          ratio: ratioX.value,
          size: sizeWidth.value,
          always: _ctx.always
        }, null, 8, ["move", "ratio", "size", "always"]),
        vue.createVNode(thumb["default"], {
          move: moveY.value,
          ratio: ratioY.value,
          size: sizeHeight.value,
          vertical: "",
          always: _ctx.always
        }, null, 8, ["move", "ratio", "size", "always"])
      ], 64);
    };
  }
});
var Bar = /* @__PURE__ */ pluginVue_exportHelper["default"](_sfc_main, [["__file", "bar.vue"]]);

exports["default"] = Bar;
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