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先来 看看具体效果:

angularjs结合html5实现拖拽功能

实现方法:

1.下载并引入 angularjs

2.HTML代码:

<!DOCTYPE html>
<html lang="en" ng-app="test">
<head>
  <meta charset="UTF-8">
  <title>Html5 拖拽行为和AngularJs的结合</title>
  <meta charset="utf-8"/>
  <script type="text/javascript" src="/UploadFiles/2021-04-02/angular.js">

3.js

<script type="text/javascript">
  let mod = angular.module("test", []);
  mod.controller("main", ['$scope', function ($scope) {
    $scope.list = {
      data: [{
        id: 1,
        name: '22',
        child: [{
          id: '1-1',
          name: '1-1_name-左'
        }, {
          id: '1-2',
          name: '1-2_name-左'
        }]
      }],
      dragstart: function (item) {
        $scope.clientInfo = item;
      }
    }
    $scope.rightList = {
      data: [{
        id: 1,
        name: '停止拖动',
        child: [{
          id: '1-1',
          name: '1-1_name-右'
        }, {
          id: '1-2',
          name: '1-2_name-右'
        }]
      }],
      drop: function (event, item) {
        event.preventDefault();
        console.log("被拖动的元素:->", $scope.clientInfo);
        console.log("当前节点:->", item);
        //调用后端添加接口,实现真实的添加。
      },
      dragover: function (event) {
        event.preventDefault();
      }
    }
  }]);
  var convertFirstUpperCase = function (str) {
    return str.replace(/(\w)/, function (s) {
      return s.toUpperCase();
    });
  };
  rubyDragEventDirectives = {};
  angular.forEach("dragstart drag dragenter dragover drop dragleave dragend".split(' '), function (eventName) {
    var rubyEventName = 'ruby' + convertFirstUpperCase(eventName);
    rubyDragEventDirectives[rubyEventName] = ['$parse', function ($parse) {
      //$parse 语句解析器
      return {
        restrict: 'A',
        compile: function (ele, attr) {
          var fn = $parse(attr[rubyEventName]);
          return function rubyEventHandler(scope, ele) {
            ele[0].addEventListener(eventName, function (event) {
              if (eventName == 'dragover' || eventName == 'drop') {
                event.preventDefault();
              }
              var callback = function () {
                fn(scope, {event: event});
              };
              callback();
            });
          }
        }
      }
    }]
  });
  mod.directive(rubyDragEventDirectives);
</script>

希望可以对大家有所帮助哦。好久都没写博客啦,嘻嘻最近变懒了,而且特别懒,哈哈哈哈,天热啦,大家多喝水哦,注意防暑。

标签:
angularjs,拖拽

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