angular分页插件

html

<div ng-controller="PageCtrl">      {{ text }}      <observe totalitems="204" listsizes="5" itemsperpage="10"></observe>  </div>

js

ctrl.controller('PageCtrl', ['$scope', function($scope){      $scope.showPage = function(val, args){          $scope.text = args;          console.log(args)      }      $scope.$on('pagechage', $scope.showPage);  }]);    ctrl.directive('observe', function(){      return {          restrice: 'EA',          controller: function($scope, pagerConfig){              // 共多少条              $scope.totalItems = 0;              $scope.page = [];              // 偏移数              $scope.offsetPage = 0;              // 一页多少条              $scope.itemsPerpage = 0;              // 一个多少页              $scope.totalPages = 0;              $scope.currentPage = 0;                $scope.$watch('totalItems', function(){                  $scope.totalPages = Math.ceil($scope.totalItems / $scope.itemsPerpage);                    resetPageList();                  if ($scope.page[$scope.currentPage]) {                      $scope.page[$scope.currentPage].active = true;                  }              });                var resetPageList = function(){                  $scope.page = [];                    var last = Math.min(Number($scope.offsetPage) + Number($scope.listSizes), $scope.totalPages);                    for (var i = $scope.offsetPage; i < last; i ++) {                      $scope.page.push({                          text: i,                          indexPage: i,                          active: false                      })                  }                }              var getOffset = function(index){                  var offset = Math.min(index, $scope.totalPages - $scope.listSizes);                  if (offset <= 0) {                      offset = 0;                  }                  return offset;              };              $scope.selectPage = function(index){                  if (index < 0 || index >= $scope.totalPages) {                      return;                  }                  if ($scope.page[$scope.currentPage-$scope.offsetPage]) {                      $scope.page[$scope.currentPage-$scope.offsetPage].active = false;                  }                  $scope.currentPage = index;                  // 如果currentPage 小于 offsetPage 或者 currentPage 大于 offsetPage加listsizes                    if ($scope.currentPage < $scope.offsetPage || $scope.currentPage >= $scope.offsetPage + $scope.page.length) {                        $scope.offsetPage = getOffset(index)                        resetPageList();                  }                    if ($scope.page[$scope.currentPage-$scope.offsetPage]) {                      $scope.page[$scope.currentPage-$scope.offsetPage].active = true;                  }                  $scope.$emit('pagechage', $scope.currentPage);              };              $scope.next = function(){                  if ($scope.isLast()) {                      return;                  }                  $scope.selectPage($scope.currentPage + 1);              };              $scope.provie = function(){                  if ($scope.isFirst()) return                  $scope.selectPage($scope.currentPage - 1);              }              $scope.first = function(){                  $scope.selectPage(0);              }              $scope.last = function(){                  $scope.selectPage($scope.totalPages - 1);              }              $scope.isFirst = function(){                  return $scope.currentPage <= 0;              };              $scope.isLast = function(){                  return $scope.currentPage >= $scope.totalPages - 1;              }              $scope.getText = function(key) {                  return pagerConfig.text[key];              };              },          link: function(scope, ele, attrs){                scope.itemsPerpage = attrs.itemsperpage || 1;              scope.listSizes = attrs.listsizes;              attrs.$observe('totalitems', function(val){                  scope.totalItems = val;              })          },          templateUrl: '../../views/modal/page.html'      }  }).constant('pagerConfig', {          text: {              'first': '首页',              'provie': '上一页',              'next': '下一页',              'last': '尾页',          }      }  );

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