angular.module('myModule',[]).directive('myPagination',function () {
return {
restrict: 'EA',replace: true,scope: {
option: '=pageOption'
},template: '<ul class="pagination">' +
'<li ng-click="pageClick(p)" ng-repeat="p in page" class="{{option.curr==p?\'active\':\'\'}}">' +
'{{p}}' +
'' +
'',link: function ($scope) {
//容错处理
if (!$scope.option.curr || isNaN($scope.option.curr) || $scope.option.curr < 1) $scope.option.curr = 1;
if (!$scope.option.all || isNaN($scope.option.all) || $scope.option.all < 1) $scope.option.all = 1;
if ($scope.option.curr > $scope.option.all) $scope.option.curr = $scope.option.all;
if (!$scope.option.count || isNaN($scope.option.count) || $scope.option.count < 1) $scope.option.count = 10;

  //得到<a href="/tag/xianshi/" target="_blank" class="keywords">显示</a>页数的数组
  $scope.page = getRange($scope.option.curr,$scope.option.all,$scope.option.count);

  //绑定点击事件
  $scope.pageClick = function (page) {
    if (page == '&laquo;') {
      page = parseInt($scope.option.curr) - 1;
    } else if (page == '&raquo;') {
      page = parseInt($scope.option.curr) + 1;
    }
    if (page < 1) page = 1;
    else if (page > $scope.option.all) page = $scope.option.all;
    //点击相同的页数 不执行点击事件
    if (page == $scope.option.curr) return;
    if ($scope.option.click && typeof $scope.option.click === 'function') {
      $scope.option.click(page);
      $scope.option.curr = page;
      $scope.page = getRange($scope.option.curr,$scope.option.count);
    }
  };

  //返回页数范围（用来遍历）
  function getRange(curr,all,count) {
    //计算<a href="/tag/xianshi/" target="_blank" class="keywords">显示</a>的页数
    curr = parseInt(curr);
    all = parseInt(all);
    count = parseInt(count);
    var from = curr - parseInt(count / 2);
    var to = curr + parseInt(count / 2) + (count % 2) - 1;
    //<a href="/tag/xianshi/" target="_blank" class="keywords">显示</a>的页数容处理
    if (from <= 0) {
      from = 1;
      to = from + count - 1;
      if (to > all) {
        to = all;
      }
    }
    if (to > all) {
      to = all;
      from = to - count + 1;
      if (from <= 0) {
        from = 1;
      }
    }
    var range = [];
    for (var i = from; i <= to; i++) {
      range.push(i);
    }
    range.push('&raquo;');
    range.unshift('&laquo;');
    return range;
  }

}

}
});