\\r\\n\";","import CONFIG from '../../config';\r\n\r\nimport { Injectable } from '@angular/core';\r\n\r\nimport { BehaviorSubject } from 'rxjs/BehaviorSubject';\r\n\r\n@Injectable()\r\nexport class PaginationService {\r\n private _entryRange = new BehaviorSubject>([0, 10]);\r\n entryRange = this._entryRange.asObservable();\r\n paginationArray: Array = [1];\r\n paginationArrayDisplay: Array = [];\r\n maxItemsOnPage: number = 10;\r\n totalPages: number = 0;\r\n totalEntries: number = 0;\r\n maxPagesInListing: number = 5;\r\n currentPage: number = 1;\r\n currentPageIndexTop: number = 1;\r\n\r\n constructor() {}\r\n\r\n setGrid(start, total?) {\r\n \r\n // console.log(start, total);\r\n //passing a total entries variable is optional- needs to be done on first load and any filter by parent component\r\n if(total !== undefined) {\r\n this.totalEntries = total;\r\n // console.log(this.totalEntries , total);\r\n }\r\n\r\n this.paginationArray = [1];\r\n\r\n let totalPages = Math.ceil(this.totalEntries / this.maxItemsOnPage);\r\n //console.log(totalPages);\r\n\r\n //push each group of maxItemsOnPage into an array\r\n for(var i = 1; i < totalPages; i += 1) {\r\n this.paginationArray.push(i * this.maxItemsOnPage + 1);\r\n //console.log(i * this.maxItemsOnPage + 1);\r\n }\r\n\r\n //get the current page and check which should be displayed on screen\r\n let paginationArrayMid = this.paginationArray.indexOf(start);\r\n if(paginationArrayMid - 2 < 0) {\r\n paginationArrayMid = 2;\r\n } else if(paginationArrayMid + 3 > totalPages) {\r\n paginationArrayMid = totalPages - 3;\r\n }\r\n\r\n let paginationArrayMin = paginationArrayMid - 2;\r\n let paginationArrayMax = paginationArrayMid + 3;\r\n\r\n //limit # of page links in bottom section, show more as you scroll (but only if number of pages is greater than set max)\r\n if(totalPages > this.maxPagesInListing) {\r\n this.paginationArrayDisplay = this.paginationArray.slice(paginationArrayMin, paginationArrayMax);\r\n } else {\r\n this.paginationArrayDisplay = this.paginationArray;\r\n }\r\n\r\n this.currentPage = (start + (this.maxItemsOnPage - 1)) / this.maxItemsOnPage;\r\n\r\n //this is to pass the index of the first item on the page displaying back to the component using this service- allows for save/edit/delete on a page and stay on that page (instead of reverting to page 1).\r\n this.currentPageIndexTop = start;\r\n\r\n //fire observable update to send page range to pagination component and parent component\r\n this._entryRange.next([start - 1, start + (this.maxItemsOnPage - 1)]);\r\n }\r\n\r\n updateMaxItemsOnPage(value) {\r\n this.maxItemsOnPage = +value;\r\n this.setGrid(1);\r\n }\r\n updatePage(pageIndex, pageSize){\r\n this.maxItemsOnPage = +pageSize;\r\n // console.log(pageIndex*pageSize+1);\r\n \r\n this.setGrid(pageIndex*pageSize+1);\r\n }\r\n\r\n}\r\n","export default \" \\n \\n \\n