Draggable dialog

Transfer instruction package https://blog.csdn.net/sinat_21902709/article/details/86545444

 

Can be used in many drag the dialog box pops up, we need to act on global

Create a file in the plugin folder dialogDrag public storage instructions

 

 

 

import Vue from "vue";

// V-dialogDrag: pop drag properties 
Vue.directive ( " dialogDrag " , {
  bind(el, binding, vnode, oldVnode) {
    const dialogHeaderEl = el.querySelector(".el-dialog__header");
    const dragDom = el.querySelector(".el-dialog");
    //dialogHeaderEl.style.cursor = 'move';
    dialogHeaderEl.style.cssText += ";cursor:move;";
    dragDom.style.cssText += ";top:0px;";

    // Get original attribute ie dom element .currentStyle Firefox Google window.getComputedStyle (dom element, null); 
    const STY = (function () {
       IF (window.document.currentStyle) {
         return (DOM, attr) => DOM. currentStyle [attr];
      } else {
        return (dom, attr) => getComputedStyle(dom, false)[attr];
      }
    })();

    dialogHeaderEl.onmousedown = E => {
       // mouse-down, the current element is calculated from the distance of the visible region 
      const disX = e.clientX - dialogHeaderEl.offsetLeft;
       const disY = e.clientY - dialogHeaderEl.offsetTop;

      const screenWidth = document.body.clientWidth; // body current width 
      const screenHeight = document.documentElement.clientHeight; // visible area height (body height should, under certain circumstances can not obtain)

      const dragDomWidth = dragDom.offsetWidth; // box width 
      const dragDomheight = dragDom.offsetHeight; // dialog height

      const minDragDomLeft = dragDom.offsetLeft;
      const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth;

      const minDragDomTop = dragDom.offsetTop;
      const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight;

      // Get the value match with regular px Alternatively 
      the let STYL = STY (dragDom, " left " );
      let styT = sty(dragDom, "top");

      // Assignment Note that after the first acquired value ie the assembly comes as a 50% mobile PX 
      IF (styL.includes ( " % " )) {
        styL = +document.body.clientWidth * (+styL.replace(/\%/g, "") / 100);
        styT = +document.body.clientHeight * (+styT.replace(/\%/g, "") / 100);
      } else {
        styL = +styL.replace(/\px/g, "");
        styT = +styT.replace(/\px/g, "");
      }

      document.onmousemove = function (E) {
         // by event delegate calculates the distance moved 
        the let e.clientX = left - disX;
        let top = e.clientY - disY;

        // boundary processing 
        IF (-left> minDragDomLeft) {
          left = -minDragDomLeft;
        } else if (left > maxDragDomLeft) {
          left = maxDragDomLeft;
        }

        if (-top > minDragDomTop) {
          top = -minDragDomTop;
        } else if (top > maxDragDomTop) {
          top = maxDragDomTop;
        }

        // move the current element 
        dragDom.style.cssText + = `; left: left $ {+} STYL PX; Top: Top + $ { styT} PX;`;
      };

      document.onmouseup = function(e) {
        document.onmousemove = null;
        document.onmouseup = null;
      };
    };
  }
});

The introduction of public instruction in main.js file

// introduced defined instructions 
Import " ./plugins/dialogDrag/directives " ;

Then directly be used in the assembly

<! - used as a custom command v-dialogDrag -> 
<template>
  <div id="addExpressDialog"
       v-show="isShowExpressDialog"
       v-dialogDrag>
    <el-dialog :visible.sync="isShowExpress"
               class="dialog_container"
               center>
      <div slot="title"
           class="dialog-title">
        {{title}}
      </div>
      <div class="dialog_content">
        content
      </div>
    </el-dialog>

  </div>
</template>
<script>
Import view from 'View'
import { Dialog } from 'element-ui'
Vue.use(Dialog)
export default {
  name: 'addExpressDialog',
  props: {
    title: {
      type: String
    },
    isShowExpressDialog: {
      type: Boolean,
      default: false
    },
    dialogType: {
      type: String
    }
  },

  data() {
    return {}
  },
  mounted() {},
  computed: {
    isShowExpress: {
      get() {
        return this.isShowExpressDialog
      },
      set(v) {
        this.$emit('closeExpressDialog', v)
      }
    }
  },

  watch: {},
  methods: {}
}
</script>
<style lang="scss">
cis-modal {
  z-index: 0 !important;
}
#addExpressDialog {
  .el-dialog {
    width: 431px;
    height: 222px;
    position: relative;
    margin: 0 auto;
    margin-top: 0px !important;
    margin-bottom: 0px !important;
    background: url('../../../../assets/images/sysinformation/bg_popup_del.png')
      no-repeat;
    .el-dialog__header {
      padding: 5px 0px 0px 0px;
      .el-dialog__headerbtn {
        top: 5px;
      }
    }
  }
}
</style>
<style lang="scss" scoped>
#addExpressDialog {
  position: fixed;
  height: calc(100% - 80px);
  top: 80px;
  bottom: 0px;
  left: 0px;
  right: 0px;
  z-index: 9999 !important;
  .dialog_container {
    height: calc(100% - 80px);
    top: 80px !important;
    overflow: hidden;
    .dialog-title {
      color: rgba(255, 255, 255, 1);
    }
  }
}
</style>

　　Simple renderings

 

 You can drag