angularJS Directive学习

浏览数：18 / 时间：2015年06月09日

Directive 指令

直接上实例

index.html

<!doctype html>
<html ng-app="drag">
  <head>
    <script src="http://code.angularjs.org/angular-1.1.0.min.js"></script>
    <script src="script.js"></script>
  </head>
  <body>
    <span draggable>Drag ME</span>

    <div enter>I am Directive</div>

  </body>
</html>

script.js:

var dragDir=angular.module(‘drag‘, []);
dragDir.directive("enter", function () {
    return function (scope, element) {
        element.bind("mouseenter", function () {
            alert("enter");
        });
    };
});
dragDir.directive(‘draggable‘, function($document) {
    var startX=0, startY=0, x = 0, y = 0;
    return function(scope, element, attr) {
      element.css({
       position: ‘relative‘,
       border: ‘1px solid red‘,
       backgroundColor: ‘lightgrey‘,
       cursor: ‘pointer‘
      });
      element.bind(‘mousedown‘, function(event) {
        startX = event.screenX - x;
        startY = event.screenY - y;
        $document.bind(‘mousemove‘, mousemove);
        $document.bind(‘mouseup‘, mouseup);
      });

      function mousemove(event) {
        y = event.screenY - startY;
        x = event.screenX - startX;
        element.css({
          top: y + ‘px‘,
          left:  x + ‘px‘
        });
      }

      function mouseup() {
        $document.unbind(‘mousemove‘, mousemove);
        $document.unbind(‘mouseup‘, mouseup);
      }
    }
 });