angular-io-pager
Version:
269 lines (268 loc) • 24.2 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,uselessCode} checked by tsc
*/
import * as tslib_1 from "tslib";
import { Component, Input, Output, EventEmitter } from '@angular/core';
var AngularIoPagerComponent = /** @class */ (function () {
function AngularIoPagerComponent() {
this.pageGap = 10;
this.id = 1;
this.noOfPages = 10;
this.pageClick = new EventEmitter();
// page view count selectors
this.from = 1;
this.to = 0;
this.pageLength = 20;
this.currentPage = 1;
this.pages = [];
this.pageNum = [];
this.showLeftNav = false;
this.showRightNav = false;
this.totalPageLength = 0;
this.leftNavString = '<<';
this.rightNavString = '>>';
this.lastPageMax = 0;
this.lastPageMin = 0;
this._total = 0;
}
Object.defineProperty(AngularIoPagerComponent.prototype, "totalRecords", {
get: /**
* @return {?}
*/
function () {
return this._total;
},
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._total = value;
if (value > 0) {
this.pagePreparation();
}
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
AngularIoPagerComponent.prototype.ngOnInit = /**
* @return {?}
*/
function () {
for (var i = 1; i <= this.pageLength; i++) {
this.pages.push(i * this.pageGap);
}
this.to = this.pages[0];
};
/**
* @return {?}
*/
AngularIoPagerComponent.prototype.pagePreparation = /**
* @return {?}
*/
function () {
var _this = this;
this.reCalculatePageNumbers();
setTimeout(function () {
_this.setSelectedPage();
}, 0);
};
/**
* @return {?}
*/
AngularIoPagerComponent.prototype.reCalculatePageNumbers = /**
* @return {?}
*/
function () {
/** @type {?} */
var divided = (this.totalRecords / this.pageGap).toString().split('.');
/** @type {?} */
var wholePageLen = parseInt(divided[0], 10);
/** @type {?} */
var partialPageLen = 0;
if (divided.length === 2) {
// has one more page with limited records
partialPageLen = 1;
}
this.totalPageLength = wholePageLen + partialPageLen;
this.pageNum.length = 0;
this.populatePages(1);
};
/**
* @param {?} start
* @return {?}
*/
AngularIoPagerComponent.prototype.populatePages = /**
* @param {?} start
* @return {?}
*/
function (start) {
/** @type {?} */
var until = 1;
this.pageNum.length = 0;
for (var i = start; i <= this.totalPageLength && until <= this.noOfPages; i++) {
this.pageNum.push(i);
until++;
}
this.currentPage = this.lastPageMin = Math.min.apply(Math, tslib_1.__spread(this.pageNum));
this.lastPageMax = Math.max.apply(Math, tslib_1.__spread(this.pageNum));
this.setPrevNextNav();
};
/**
* @return {?}
*/
AngularIoPagerComponent.prototype.pageLengthChange = /**
* @return {?}
*/
function () {
this.reCalculatePageNumbers();
this.setSelectedPage();
};
/**
* @param {?} e
* @return {?}
*/
AngularIoPagerComponent.prototype.pageChange = /**
* @param {?} e
* @return {?}
*/
function (e) {
if (e.target.classList.contains('cmdLeft')) {
this.populatePages(this.lastPageMin - this.noOfPages);
this.setSelectedPage();
}
else if (e.target.classList.contains('cmdRight')) {
this.populatePages(++this.lastPageMax);
this.setSelectedPage();
}
else {
this.setSelectedPage(e.target);
}
};
/**
* @param {?=} el
* @return {?}
*/
AngularIoPagerComponent.prototype.setSelectedPage = /**
* @param {?=} el
* @return {?}
*/
function (el) {
var _this = this;
if (el === void 0) { el = null; }
if (el != null) {
this.currentPage = parseInt(el.innerText, 10);
}
this.to = Math.min(this.currentPage * this.pageGap, this.totalRecords);
this.from = this.currentPage * this.pageGap - this.pageGap + 1;
setTimeout(function () {
el = /** @type {?} */ (((el == null
? document
.getElementById('pager' + _this.id)
.querySelector('.pageElements')
: el)));
/** @type {?} */
var closePageNum = el;
while ((closePageNum = closePageNum.parentElement) &&
!closePageNum.classList.contains('pageNumbers')) { }
Array.from(closePageNum.children).forEach(function (x) {
return x.classList.remove('selected');
});
el.classList.add('selected');
}, 0);
this.emitPageClick();
};
/**
* @return {?}
*/
AngularIoPagerComponent.prototype.setPrevNextNav = /**
* @return {?}
*/
function () {
this.showLeftNav = this.showRightNav = false;
if (this.currentPage > this.noOfPages) {
// current page is out of maximum pages can be shown, it means it is not the first set of page numbers. show left
this.showLeftNav = true;
}
/** @type {?} */
var currentPageIsInBetween = (this.currentPage / this.noOfPages).toString().split('.')
.length === 2;
/** @type {?} */
var currHighestPageShowing = parseInt((this.currentPage / this.noOfPages).toString(), 10) *
this.noOfPages +
(currentPageIsInBetween ? this.noOfPages : 0);
if (currHighestPageShowing < this.totalPageLength) {
this.showRightNav = true;
}
};
/**
* @return {?}
*/
AngularIoPagerComponent.prototype.emitPageClick = /**
* @return {?}
*/
function () {
this.pageClick.emit({ from: this.from, to: this.to });
};
AngularIoPagerComponent.decorators = [
{ type: Component, args: [{
selector: 'sr-angular-io-pager',
template: "<div class=\"pager\" [ngClass]=\"{'hidden': totalRecords <= 0}\" [id]=\"'pager' + id\">\n <div class=\"left\">\n Show\n <select [(ngModel)]=\"pageGap\" (change)=\"pageLengthChange()\"\n id=\"pageGap\">\n <option *ngFor=\"let pg of pages\" [value]=\"pg\">{{pg}}</option>\n </select>\n Showing {{from}}-{{to}} of {{totalRecords}}\n </div>\n <div class=\"right\">\n <ul class=\"pageNumbers\" id=\"pageList\">\n <li *ngIf=\"showLeftNav\" (click)=\"pageChange($event)\"\n class=\"cmdLeft\"> {{leftNavString}} </li>\n <li *ngFor=\"let pn of pageNum\" (click)=\"pageChange($event)\"\n class=\"pageElements\">{{pn}}</li>\n <li *ngIf=\"showRightNav\" (click)=\"pageChange($event)\"\n class=\"cmdRight\"> {{rightNavString}} </li>\n </ul>\n </div>\n</div>",
styles: [".pager{font:bold 13px Arial;color:#377bba}.pageNumbers{list-style:none;border:1px solid #dfdfdf;display:inline-block;padding-left:0;margin:0}.pageNumbers li{float:left;padding:8px 10px;background:#fff;border-left:1px solid #dfdfdf;border-collapse:collapse;color:#377bba;cursor:pointer;min-width:15px;text-align:center}.pageNumbers li.selected{background:#377bba;color:#fff}.pageNumbers li:first-of-type{border-left:0}.pageNumbers li:hover{background:#3a4046;color:#fff}div.left{padding:9px 0}select{color:#377bba;font-weight:700;font-size:.9em;padding:2px;border:1px solid #377bba}.left{float:left}.right{float:right}.hidden{display:none}"]
},] },
];
/** @nocollapse */
AngularIoPagerComponent.ctorParameters = function () { return []; };
AngularIoPagerComponent.propDecorators = {
pageGap: [{ type: Input }],
id: [{ type: Input }],
noOfPages: [{ type: Input }],
totalRecords: [{ type: Input }],
pageClick: [{ type: Output }]
};
return AngularIoPagerComponent;
}());
export { AngularIoPagerComponent };
if (false) {
/** @type {?} */
AngularIoPagerComponent.prototype.pageGap;
/** @type {?} */
AngularIoPagerComponent.prototype.id;
/** @type {?} */
AngularIoPagerComponent.prototype.noOfPages;
/** @type {?} */
AngularIoPagerComponent.prototype.pageClick;
/** @type {?} */
AngularIoPagerComponent.prototype.from;
/** @type {?} */
AngularIoPagerComponent.prototype.to;
/** @type {?} */
AngularIoPagerComponent.prototype.pageLength;
/** @type {?} */
AngularIoPagerComponent.prototype.currentPage;
/** @type {?} */
AngularIoPagerComponent.prototype.pages;
/** @type {?} */
AngularIoPagerComponent.prototype.pageNum;
/** @type {?} */
AngularIoPagerComponent.prototype.showLeftNav;
/** @type {?} */
AngularIoPagerComponent.prototype.showRightNav;
/** @type {?} */
AngularIoPagerComponent.prototype.totalPageLength;
/** @type {?} */
AngularIoPagerComponent.prototype.leftNavString;
/** @type {?} */
AngularIoPagerComponent.prototype.rightNavString;
/** @type {?} */
AngularIoPagerComponent.prototype.lastPageMax;
/** @type {?} */
AngularIoPagerComponent.prototype.lastPageMin;
/** @type {?} */
AngularIoPagerComponent.prototype._total;
}
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{ Component, OnInit, Input, Output, EventEmitter } from '@angular/core';\n\n@Component({\n  selector: 'sr-angular-io-pager',\n  template: `<div class=\"pager\" [ngClass]=\"{'hidden': totalRecords <= 0}\" [id]=\"'pager' + id\">\n  <div class=\"left\">\n      Show\n      <select [(ngModel)]=\"pageGap\" (change)=\"pageLengthChange()\"\n          id=\"pageGap\">\n          <option *ngFor=\"let pg of pages\" [value]=\"pg\">{{pg}}</option>\n      </select>\n      Showing {{from}}-{{to}} of {{totalRecords}}\n  </div>\n  <div class=\"right\">\n      <ul class=\"pageNumbers\" id=\"pageList\">\n          <li *ngIf=\"showLeftNav\" (click)=\"pageChange($event)\"\n              class=\"cmdLeft\"> {{leftNavString}} </li>\n          <li *ngFor=\"let pn of pageNum\" (click)=\"pageChange($event)\"\n              class=\"pageElements\">{{pn}}</li>\n          <li *ngIf=\"showRightNav\" (click)=\"pageChange($event)\"\n              class=\"cmdRight\"> {{rightNavString}} </li>\n      </ul>\n  </div>\n</div>`,\n  styles: [`.pager{font:bold 13px Arial;color:#377bba}.pageNumbers{list-style:none;border:1px solid #dfdfdf;display:inline-block;padding-left:0;margin:0}.pageNumbers li{float:left;padding:8px 10px;background:#fff;border-left:1px solid #dfdfdf;border-collapse:collapse;color:#377bba;cursor:pointer;min-width:15px;text-align:center}.pageNumbers li.selected{background:#377bba;color:#fff}.pageNumbers li:first-of-type{border-left:0}.pageNumbers li:hover{background:#3a4046;color:#fff}div.left{padding:9px 0}select{color:#377bba;font-weight:700;font-size:.9em;padding:2px;border:1px solid #377bba}.left{float:left}.right{float:right}.hidden{display:none}`]\n})\nexport class AngularIoPagerComponent implements OnInit {\n  @Input()\n  pageGap = 10;\n  @Input()\n  id = 1;\n  @Input()\n  noOfPages = 10;\n  @Input()\n  public set totalRecords(value: number) {\n    this._total = value;\n\n    if (value > 0) {\n      this.pagePreparation();\n    }\n  }\n\n  public get totalRecords(): number {\n    return this._total;\n  }\n\n  @Output()\n  pageClick: EventEmitter<object> = new EventEmitter();\n\n  // page view count selectors\n  from = 1;\n  to = 0;\n  pageLength = 20;\n  currentPage = 1;\n  pages: number[] = [];\n  pageNum: number[] = [];\n  showLeftNav = false;\n  showRightNav = false;\n  totalPageLength = 0;\n  leftNavString = '<<';\n  rightNavString = '>>';\n  lastPageMax = 0;\n  lastPageMin = 0;\n  _total = 0;\n\n  constructor() {}\n\n  ngOnInit() {\n    for (let i = 1; i <= this.pageLength; i++) {\n      this.pages.push(i * this.pageGap);\n    }\n\n    this.to = this.pages[0];\n  }\n\n  pagePreparation() {\n    this.reCalculatePageNumbers();\n\n    setTimeout(() => {\n      this.setSelectedPage();\n    }, 0);\n  }\n\n  reCalculatePageNumbers() {\n    const divided = (this.totalRecords / this.pageGap).toString().split('.');\n    const wholePageLen = parseInt(divided[0], 10);\n    let partialPageLen = 0;\n    if (divided.length === 2) {\n      // has one more page with limited records\n      partialPageLen = 1;\n    }\n\n    this.totalPageLength = wholePageLen + partialPageLen;\n    this.pageNum.length = 0;\n    this.populatePages(1);\n  }\n\n  populatePages(start: number) {\n    let until = 1;\n    this.pageNum.length = 0;\n\n    for (\n      let i = start;\n      i <= this.totalPageLength && until <= this.noOfPages;\n      i++\n    ) {\n      this.pageNum.push(i);\n      until++;\n    }\n\n    this.currentPage = this.lastPageMin = Math.min(...this.pageNum);\n    this.lastPageMax = Math.max(...this.pageNum);\n    this.setPrevNextNav();\n  }\n\n  pageLengthChange() {\n    this.reCalculatePageNumbers();\n    this.setSelectedPage();\n  }\n\n  pageChange(e) {\n    if (e.target.classList.contains('cmdLeft')) {\n      this.populatePages(this.lastPageMin - this.noOfPages);\n      this.setSelectedPage();\n    } else if (e.target.classList.contains('cmdRight')) {\n      this.populatePages(++this.lastPageMax);\n      this.setSelectedPage();\n    } else {\n      this.setSelectedPage(e.target);\n    }\n  }\n\n  setSelectedPage(el: HTMLElement = null) {\n    if (el != null) {\n      this.currentPage = parseInt(el.innerText, 10);\n    }\n    this.to = Math.min(this.currentPage * this.pageGap, this.totalRecords);\n    this.from = this.currentPage * this.pageGap - this.pageGap + 1;\n\n    setTimeout(() => {\n      el = <HTMLElement>(\n        (el == null\n          ? document\n              .getElementById('pager' + this.id)\n              .querySelector('.pageElements')\n          : el)\n      );\n\n      let closePageNum = el;\n      while (\n        (closePageNum = closePageNum.parentElement) &&\n        !closePageNum.classList.contains('pageNumbers')\n      ) {}\n\n      Array.from(closePageNum.children).forEach(x =>\n        x.classList.remove('selected')\n      );\n\n      el.classList.add('selected');\n    }, 0);\n\n    this.emitPageClick();\n  }\n\n  setPrevNextNav() {\n    this.showLeftNav = this.showRightNav = false;\n    if (this.currentPage > this.noOfPages) {\n      // current page is out of maximum pages can be shown, it means it is not the first set of page numbers. show left\n      this.showLeftNav = true;\n    }\n\n    // get whether page is not a multiple of PagesToShow\n    const currentPageIsInBetween =\n      (this.currentPage / this.noOfPages).toString().split('.')\n        .length === 2;\n\n    // get highest page number in the current page\n    // formula used = current page divided with maxPagetoShow, if found remainder,\n    // page might have upcoming page links, so finding largest page number in that page.\n    // ex. if the base showing is 40 in the case of 10 as the page length.\n    // now 40 is the highest page showing, if 42 then 50 is the highest page showing.\n\n    const currHighestPageShowing =\n      parseInt((this.currentPage / this.noOfPages).toString(), 10) *\n        this.noOfPages +\n      (currentPageIsInBetween ? this.noOfPages : 0);\n\n    if (currHighestPageShowing < this.totalPageLength) {\n      this.showRightNav = true;\n    }\n  }\n\n  emitPageClick() {\n    this.pageClick.emit({ from: this.from, to: this.to });\n  }\n}\n"]}