angularjs创建弹出框实现拖动效果

本文实例介绍了angularjs创建弹出框实现拖动效果的相关代码，项目中需要将angular-ui-bootstrap中用到的弹出框，使之可拖动，分享给大家供大家参考，具体内容如下。

由于源文件中没有实现，需要自己实现指令，以下即为该指令，亲测可以实现。

.directive(\'draggable\', [\'$document\', function($document) {
        return function(scope, element, attr) {
        var startX = 0, startY = 0, x = 0, y = 0;
        element= angular.element(document.getElementsByClassName(\"modal-dialog\")); 
        element.css({
          position: \'relative\',
          cursor: \'move\'
        });
 
        element.on(\'mousedown\', function(event) {
          // Prevent default dragging of selected content
          event.preventDefault();
          startX = event.pageX - x;
          startY = event.pageY - y;
          $document.on(\'mousemove\', mousemove);
          $document.on(\'mouseup\', mouseup);
        });
 
        function mousemove(event) {
          y = event.pageY - startY;
          x = event.pageX - startX;
          element.css({
          top: y + \'px\',
          left: x + \'px\'
          });
        }
 
        function mouseup() {
          $document.off(\'mousemove\', mousemove);
          $document.off(\'mouseup\', mouseup);
        }
        };
  }]);