ecomp-portal-FE/client/bower_components/angular-smart-table/src/stPagination.js

   1 ng.module('smart-table')
   2   .directive('stPagination', ['stConfig', function (stConfig) {
   3     return {
   4       restrict: 'EA',
   5       require: '^stTable',
   6       scope: {
   7         stItemsByPage: '=?',
   8         stDisplayedPages: '=?',
   9         stPageChange: '&'
  10       },
  11       templateUrl: function (element, attrs) {
  12         if (attrs.stTemplate) {
  13           return attrs.stTemplate;
  14         }
  15         return stConfig.pagination.template;
  16       },
  17       link: function (scope, element, attrs, ctrl) {
  18
  19         scope.stItemsByPage = scope.stItemsByPage ? +(scope.stItemsByPage) : stConfig.pagination.itemsByPage;
  20         scope.stDisplayedPages = scope.stDisplayedPages ? +(scope.stDisplayedPages) : stConfig.pagination.displayedPages;
  21
  22         scope.currentPage = 1;
  23         scope.pages = [];
  24
  25         function redraw () {
  26           var paginationState = ctrl.tableState().pagination;
  27           var start = 1;
  28           var end;
  29           var i;
  30           var prevPage = scope.currentPage;
  31           scope.totalItemCount = paginationState.totalItemCount;
  32           scope.currentPage = Math.floor(paginationState.start / paginationState.number) + 1;
  33
  34           start = Math.max(start, scope.currentPage - Math.abs(Math.floor(scope.stDisplayedPages / 2)));
  35           end = start + scope.stDisplayedPages;
  36
  37           if (end > paginationState.numberOfPages) {
  38             end = paginationState.numberOfPages + 1;
  39             start = Math.max(1, end - scope.stDisplayedPages);
  40           }
  41
  42           scope.pages = [];
  43           scope.numPages = paginationState.numberOfPages;
  44
  45           for (i = start; i < end; i++) {
  46             scope.pages.push(i);
  47           }
  48
  49           if (prevPage !== scope.currentPage) {
  50             scope.stPageChange({newPage: scope.currentPage});
  51           }
  52         }
  53
  54         //table state --> view
  55         scope.$watch(function () {
  56           return ctrl.tableState().pagination;
  57         }, redraw, true);
  58
  59         //scope --> table state  (--> view)
  60         scope.$watch('stItemsByPage', function (newValue, oldValue) {
  61           if (newValue !== oldValue) {
  62             scope.selectPage(1);
  63           }
  64         });
  65
  66         scope.$watch('stDisplayedPages', redraw);
  67
  68         //view -> table state
  69         scope.selectPage = function (page) {
  70           if (page > 0 && page <= scope.numPages) {
  71             ctrl.slice((page - 1) * scope.stItemsByPage, scope.stItemsByPage);
  72           }
  73         };
  74
  75         if (!ctrl.tableState().pagination.number) {
  76           ctrl.slice(0, scope.stItemsByPage);
  77         }
  78       }
  79     };
  80   }]);