@angular/material
Version:
Angular Material
280 lines • 39.6 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { __extends } from "tslib";
import { coerceNumberProperty, coerceBooleanProperty } from '@angular/cdk/coercion';
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, EventEmitter, Input, Output, ViewEncapsulation, InjectionToken, Inject, Optional, } from '@angular/core';
import { MatPaginatorIntl } from './paginator-intl';
import { mixinInitialized, mixinDisabled, } from '@angular/material/core';
/** The default page size if there is no page size and there are no provided page size options. */
var DEFAULT_PAGE_SIZE = 50;
/**
* Change event object that is emitted when the user selects a
* different page size or navigates to another page.
*/
var PageEvent = /** @class */ (function () {
function PageEvent() {
}
return PageEvent;
}());
export { PageEvent };
/** Injection token that can be used to provide the default options for the paginator module. */
export var MAT_PAGINATOR_DEFAULT_OPTIONS = new InjectionToken('MAT_PAGINATOR_DEFAULT_OPTIONS');
// Boilerplate for applying mixins to MatPaginator.
/** @docs-private */
var MatPaginatorBase = /** @class */ (function () {
function MatPaginatorBase() {
}
return MatPaginatorBase;
}());
var _MatPaginatorBase = mixinDisabled(mixinInitialized(MatPaginatorBase));
/**
* Component to provide navigation between paged information. Displays the size of the current
* page, user-selectable options to change that size, what items are being shown, and
* navigational button to go to the previous or next page.
*/
var MatPaginator = /** @class */ (function (_super) {
__extends(MatPaginator, _super);
function MatPaginator(_intl, _changeDetectorRef, defaults) {
var _this = _super.call(this) || this;
_this._intl = _intl;
_this._changeDetectorRef = _changeDetectorRef;
_this._pageIndex = 0;
_this._length = 0;
_this._pageSizeOptions = [];
_this._hidePageSize = false;
_this._showFirstLastButtons = false;
/** Event emitted when the paginator changes the page size or page index. */
_this.page = new EventEmitter();
_this._intlChanges = _intl.changes.subscribe(function () { return _this._changeDetectorRef.markForCheck(); });
if (defaults) {
var pageSize = defaults.pageSize, pageSizeOptions = defaults.pageSizeOptions, hidePageSize = defaults.hidePageSize, showFirstLastButtons = defaults.showFirstLastButtons;
if (pageSize != null) {
_this._pageSize = pageSize;
}
if (pageSizeOptions != null) {
_this._pageSizeOptions = pageSizeOptions;
}
if (hidePageSize != null) {
_this._hidePageSize = hidePageSize;
}
if (showFirstLastButtons != null) {
_this._showFirstLastButtons = showFirstLastButtons;
}
}
return _this;
}
Object.defineProperty(MatPaginator.prototype, "pageIndex", {
/** The zero-based page index of the displayed list of items. Defaulted to 0. */
get: function () { return this._pageIndex; },
set: function (value) {
this._pageIndex = Math.max(coerceNumberProperty(value), 0);
this._changeDetectorRef.markForCheck();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatPaginator.prototype, "length", {
/** The length of the total number of items that are being paginated. Defaulted to 0. */
get: function () { return this._length; },
set: function (value) {
this._length = coerceNumberProperty(value);
this._changeDetectorRef.markForCheck();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatPaginator.prototype, "pageSize", {
/** Number of items to display on a page. By default set to 50. */
get: function () { return this._pageSize; },
set: function (value) {
this._pageSize = Math.max(coerceNumberProperty(value), 0);
this._updateDisplayedPageSizeOptions();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatPaginator.prototype, "pageSizeOptions", {
/** The set of provided page size options to display to the user. */
get: function () { return this._pageSizeOptions; },
set: function (value) {
this._pageSizeOptions = (value || []).map(function (p) { return coerceNumberProperty(p); });
this._updateDisplayedPageSizeOptions();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatPaginator.prototype, "hidePageSize", {
/** Whether to hide the page size selection UI from the user. */
get: function () { return this._hidePageSize; },
set: function (value) {
this._hidePageSize = coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatPaginator.prototype, "showFirstLastButtons", {
/** Whether to show the first/last buttons UI to the user. */
get: function () { return this._showFirstLastButtons; },
set: function (value) {
this._showFirstLastButtons = coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
MatPaginator.prototype.ngOnInit = function () {
this._initialized = true;
this._updateDisplayedPageSizeOptions();
this._markInitialized();
};
MatPaginator.prototype.ngOnDestroy = function () {
this._intlChanges.unsubscribe();
};
/** Advances to the next page if it exists. */
MatPaginator.prototype.nextPage = function () {
if (!this.hasNextPage()) {
return;
}
var previousPageIndex = this.pageIndex;
this.pageIndex++;
this._emitPageEvent(previousPageIndex);
};
/** Move back to the previous page if it exists. */
MatPaginator.prototype.previousPage = function () {
if (!this.hasPreviousPage()) {
return;
}
var previousPageIndex = this.pageIndex;
this.pageIndex--;
this._emitPageEvent(previousPageIndex);
};
/** Move to the first page if not already there. */
MatPaginator.prototype.firstPage = function () {
// hasPreviousPage being false implies at the start
if (!this.hasPreviousPage()) {
return;
}
var previousPageIndex = this.pageIndex;
this.pageIndex = 0;
this._emitPageEvent(previousPageIndex);
};
/** Move to the last page if not already there. */
MatPaginator.prototype.lastPage = function () {
// hasNextPage being false implies at the end
if (!this.hasNextPage()) {
return;
}
var previousPageIndex = this.pageIndex;
this.pageIndex = this.getNumberOfPages() - 1;
this._emitPageEvent(previousPageIndex);
};
/** Whether there is a previous page. */
MatPaginator.prototype.hasPreviousPage = function () {
return this.pageIndex >= 1 && this.pageSize != 0;
};
/** Whether there is a next page. */
MatPaginator.prototype.hasNextPage = function () {
var maxPageIndex = this.getNumberOfPages() - 1;
return this.pageIndex < maxPageIndex && this.pageSize != 0;
};
/** Calculate the number of pages */
MatPaginator.prototype.getNumberOfPages = function () {
if (!this.pageSize) {
return 0;
}
return Math.ceil(this.length / this.pageSize);
};
/**
* Changes the page size so that the first item displayed on the page will still be
* displayed using the new page size.
*
* For example, if the page size is 10 and on the second page (items indexed 10-19) then
* switching so that the page size is 5 will set the third page as the current page so
* that the 10th item will still be displayed.
*/
MatPaginator.prototype._changePageSize = function (pageSize) {
// Current page needs to be updated to reflect the new page size. Navigate to the page
// containing the previous page's first item.
var startIndex = this.pageIndex * this.pageSize;
var previousPageIndex = this.pageIndex;
this.pageIndex = Math.floor(startIndex / pageSize) || 0;
this.pageSize = pageSize;
this._emitPageEvent(previousPageIndex);
};
/** Checks whether the buttons for going forwards should be disabled. */
MatPaginator.prototype._nextButtonsDisabled = function () {
return this.disabled || !this.hasNextPage();
};
/** Checks whether the buttons for going backwards should be disabled. */
MatPaginator.prototype._previousButtonsDisabled = function () {
return this.disabled || !this.hasPreviousPage();
};
/**
* Updates the list of page size options to display to the user. Includes making sure that
* the page size is an option and that the list is sorted.
*/
MatPaginator.prototype._updateDisplayedPageSizeOptions = function () {
if (!this._initialized) {
return;
}
// If no page size is provided, use the first page size option or the default page size.
if (!this.pageSize) {
this._pageSize = this.pageSizeOptions.length != 0 ?
this.pageSizeOptions[0] :
DEFAULT_PAGE_SIZE;
}
this._displayedPageSizeOptions = this.pageSizeOptions.slice();
if (this._displayedPageSizeOptions.indexOf(this.pageSize) === -1) {
this._displayedPageSizeOptions.push(this.pageSize);
}
// Sort the numbers using a number-specific sort function.
this._displayedPageSizeOptions.sort(function (a, b) { return a - b; });
this._changeDetectorRef.markForCheck();
};
/** Emits an event notifying that a change of the paginator's properties has been triggered. */
MatPaginator.prototype._emitPageEvent = function (previousPageIndex) {
this.page.emit({
previousPageIndex: previousPageIndex,
pageIndex: this.pageIndex,
pageSize: this.pageSize,
length: this.length
});
};
MatPaginator.decorators = [
{ type: Component, args: [{
selector: 'mat-paginator',
exportAs: 'matPaginator',
template: "<div class=\"mat-paginator-outer-container\">\n <div class=\"mat-paginator-container\">\n <div class=\"mat-paginator-page-size\" *ngIf=\"!hidePageSize\">\n <div class=\"mat-paginator-page-size-label\">\n {{_intl.itemsPerPageLabel}}\n </div>\n\n <mat-form-field\n *ngIf=\"_displayedPageSizeOptions.length > 1\"\n [color]=\"color\"\n class=\"mat-paginator-page-size-select\">\n <mat-select\n [value]=\"pageSize\"\n [disabled]=\"disabled\"\n [aria-label]=\"_intl.itemsPerPageLabel\"\n (selectionChange)=\"_changePageSize($event.value)\">\n <mat-option *ngFor=\"let pageSizeOption of _displayedPageSizeOptions\" [value]=\"pageSizeOption\">\n {{pageSizeOption}}\n </mat-option>\n </mat-select>\n </mat-form-field>\n\n <div\n class=\"mat-paginator-page-size-value\"\n *ngIf=\"_displayedPageSizeOptions.length <= 1\">{{pageSize}}</div>\n </div>\n\n <div class=\"mat-paginator-range-actions\">\n <div class=\"mat-paginator-range-label\">\n {{_intl.getRangeLabel(pageIndex, pageSize, length)}}\n </div>\n\n <button mat-icon-button type=\"button\"\n class=\"mat-paginator-navigation-first\"\n (click)=\"firstPage()\"\n [attr.aria-label]=\"_intl.firstPageLabel\"\n [matTooltip]=\"_intl.firstPageLabel\"\n [matTooltipDisabled]=\"_previousButtonsDisabled()\"\n [matTooltipPosition]=\"'above'\"\n [disabled]=\"_previousButtonsDisabled()\"\n *ngIf=\"showFirstLastButtons\">\n <svg class=\"mat-paginator-icon\" viewBox=\"0 0 24 24\" focusable=\"false\">\n <path d=\"M18.41 16.59L13.82 12l4.59-4.59L17 6l-6 6 6 6zM6 6h2v12H6z\"/>\n </svg>\n </button>\n <button mat-icon-button type=\"button\"\n class=\"mat-paginator-navigation-previous\"\n (click)=\"previousPage()\"\n [attr.aria-label]=\"_intl.previousPageLabel\"\n [matTooltip]=\"_intl.previousPageLabel\"\n [matTooltipDisabled]=\"_previousButtonsDisabled()\"\n [matTooltipPosition]=\"'above'\"\n [disabled]=\"_previousButtonsDisabled()\">\n <svg class=\"mat-paginator-icon\" viewBox=\"0 0 24 24\" focusable=\"false\">\n <path d=\"M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z\"/>\n </svg>\n </button>\n <button mat-icon-button type=\"button\"\n class=\"mat-paginator-navigation-next\"\n (click)=\"nextPage()\"\n [attr.aria-label]=\"_intl.nextPageLabel\"\n [matTooltip]=\"_intl.nextPageLabel\"\n [matTooltipDisabled]=\"_nextButtonsDisabled()\"\n [matTooltipPosition]=\"'above'\"\n [disabled]=\"_nextButtonsDisabled()\">\n <svg class=\"mat-paginator-icon\" viewBox=\"0 0 24 24\" focusable=\"false\">\n <path d=\"M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z\"/>\n </svg>\n </button>\n <button mat-icon-button type=\"button\"\n class=\"mat-paginator-navigation-last\"\n (click)=\"lastPage()\"\n [attr.aria-label]=\"_intl.lastPageLabel\"\n [matTooltip]=\"_intl.lastPageLabel\"\n [matTooltipDisabled]=\"_nextButtonsDisabled()\"\n [matTooltipPosition]=\"'above'\"\n [disabled]=\"_nextButtonsDisabled()\"\n *ngIf=\"showFirstLastButtons\">\n <svg class=\"mat-paginator-icon\" viewBox=\"0 0 24 24\" focusable=\"false\">\n <path d=\"M5.59 7.41L10.18 12l-4.59 4.59L7 18l6-6-6-6zM16 6h2v12h-2z\"/>\n </svg>\n </button>\n </div>\n </div>\n</div>\n",
inputs: ['disabled'],
host: {
'class': 'mat-paginator',
},
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
styles: [".mat-paginator{display:block}.mat-paginator-outer-container{display:flex}.mat-paginator-container{display:flex;align-items:center;justify-content:flex-end;min-height:56px;padding:0 8px;flex-wrap:wrap-reverse;width:100%}.mat-paginator-page-size{display:flex;align-items:baseline;margin-right:8px}[dir=rtl] .mat-paginator-page-size{margin-right:0;margin-left:8px}.mat-paginator-page-size-label{margin:0 4px}.mat-paginator-page-size-select{margin:6px 4px 0 4px;width:56px}.mat-paginator-page-size-select.mat-form-field-appearance-outline{width:64px}.mat-paginator-page-size-select.mat-form-field-appearance-fill{width:64px}.mat-paginator-range-label{margin:0 32px 0 24px}.mat-paginator-range-actions{display:flex;align-items:center}.mat-paginator-icon{width:28px;fill:currentColor}[dir=rtl] .mat-paginator-icon{transform:rotate(180deg)}\n"]
}] }
];
/** @nocollapse */
MatPaginator.ctorParameters = function () { return [
{ type: MatPaginatorIntl },
{ type: ChangeDetectorRef },
{ type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_PAGINATOR_DEFAULT_OPTIONS,] }] }
]; };
MatPaginator.propDecorators = {
color: [{ type: Input }],
pageIndex: [{ type: Input }],
length: [{ type: Input }],
pageSize: [{ type: Input }],
pageSizeOptions: [{ type: Input }],
hidePageSize: [{ type: Input }],
showFirstLastButtons: [{ type: Input }],
page: [{ type: Output }]
};
return MatPaginator;
}(_MatPaginatorBase));
export { MatPaginator };
//# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {\n  coerceNumberProperty,\n  coerceBooleanProperty,\n  BooleanInput,\n  NumberInput\n} from '@angular/cdk/coercion';\nimport {\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  EventEmitter,\n  Input,\n  OnDestroy,\n  OnInit,\n  Output,\n  ViewEncapsulation,\n  InjectionToken,\n  Inject,\n  Optional,\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\nimport {MatPaginatorIntl} from './paginator-intl';\nimport {\n  HasInitialized,\n  HasInitializedCtor,\n  mixinInitialized,\n  ThemePalette,\n  mixinDisabled,\n  CanDisableCtor,\n  CanDisable,\n} from '@angular/material/core';\n\n/** The default page size if there is no page size and there are no provided page size options. */\nconst DEFAULT_PAGE_SIZE = 50;\n\n/**\n * Change event object that is emitted when the user selects a\n * different page size or navigates to another page.\n */\nexport class PageEvent {\n  /** The current page index. */\n  pageIndex: number;\n\n  /**\n   * Index of the page that was selected previously.\n   * @breaking-change 8.0.0 To be made into a required property.\n   */\n  previousPageIndex?: number;\n\n  /** The current page size */\n  pageSize: number;\n\n  /** The current total number of items being paged */\n  length: number;\n}\n\n\n/** Object that can be used to configure the default options for the paginator module. */\nexport interface MatPaginatorDefaultOptions {\n  /** Number of items to display on a page. By default set to 50. */\n  pageSize?: number;\n\n  /** The set of provided page size options to display to the user. */\n  pageSizeOptions?: number[];\n\n  /** Whether to hide the page size selection UI from the user. */\n  hidePageSize?: boolean;\n\n  /** Whether to show the first/last buttons UI to the user. */\n  showFirstLastButtons?: boolean;\n}\n\n/** Injection token that can be used to provide the default options for the paginator module. */\nexport const MAT_PAGINATOR_DEFAULT_OPTIONS =\n    new InjectionToken<MatPaginatorDefaultOptions>('MAT_PAGINATOR_DEFAULT_OPTIONS');\n\n// Boilerplate for applying mixins to MatPaginator.\n/** @docs-private */\nclass MatPaginatorBase {}\nconst _MatPaginatorBase: CanDisableCtor & HasInitializedCtor & typeof MatPaginatorBase =\n    mixinDisabled(mixinInitialized(MatPaginatorBase));\n\n/**\n * Component to provide navigation between paged information. Displays the size of the current\n * page, user-selectable options to change that size, what items are being shown, and\n * navigational button to go to the previous or next page.\n */\n@Component({\n  selector: 'mat-paginator',\n  exportAs: 'matPaginator',\n  templateUrl: 'paginator.html',\n  styleUrls: ['paginator.css'],\n  inputs: ['disabled'],\n  host: {\n    'class': 'mat-paginator',\n  },\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n})\nexport class MatPaginator extends _MatPaginatorBase implements OnInit, OnDestroy, CanDisable,\n  HasInitialized {\n  private _initialized: boolean;\n  private _intlChanges: Subscription;\n\n  /** Theme color to be used for the underlying form controls. */\n  @Input() color: ThemePalette;\n\n  /** The zero-based page index of the displayed list of items. Defaulted to 0. */\n  @Input()\n  get pageIndex(): number { return this._pageIndex; }\n  set pageIndex(value: number) {\n    this._pageIndex = Math.max(coerceNumberProperty(value), 0);\n    this._changeDetectorRef.markForCheck();\n  }\n  private _pageIndex = 0;\n\n  /** The length of the total number of items that are being paginated. Defaulted to 0. */\n  @Input()\n  get length(): number { return this._length; }\n  set length(value: number) {\n    this._length = coerceNumberProperty(value);\n    this._changeDetectorRef.markForCheck();\n  }\n  private _length = 0;\n\n  /** Number of items to display on a page. By default set to 50. */\n  @Input()\n  get pageSize(): number { return this._pageSize; }\n  set pageSize(value: number) {\n    this._pageSize = Math.max(coerceNumberProperty(value), 0);\n    this._updateDisplayedPageSizeOptions();\n  }\n  private _pageSize: number;\n\n  /** The set of provided page size options to display to the user. */\n  @Input()\n  get pageSizeOptions(): number[] { return this._pageSizeOptions; }\n  set pageSizeOptions(value: number[]) {\n    this._pageSizeOptions = (value || []).map(p => coerceNumberProperty(p));\n    this._updateDisplayedPageSizeOptions();\n  }\n  private _pageSizeOptions: number[] = [];\n\n  /** Whether to hide the page size selection UI from the user. */\n  @Input()\n  get hidePageSize(): boolean { return this._hidePageSize; }\n  set hidePageSize(value: boolean) {\n    this._hidePageSize = coerceBooleanProperty(value);\n  }\n  private _hidePageSize = false;\n\n\n  /** Whether to show the first/last buttons UI to the user. */\n  @Input()\n  get showFirstLastButtons(): boolean { return this._showFirstLastButtons; }\n  set showFirstLastButtons(value: boolean) {\n    this._showFirstLastButtons = coerceBooleanProperty(value);\n  }\n  private _showFirstLastButtons = false;\n\n  /** Event emitted when the paginator changes the page size or page index. */\n  @Output() readonly page: EventEmitter<PageEvent> = new EventEmitter<PageEvent>();\n\n  /** Displayed set of page size options. Will be sorted and include current page size. */\n  _displayedPageSizeOptions: number[];\n\n  constructor(public _intl: MatPaginatorIntl,\n              private _changeDetectorRef: ChangeDetectorRef,\n              @Optional() @Inject(MAT_PAGINATOR_DEFAULT_OPTIONS)\n                  defaults?: MatPaginatorDefaultOptions) {\n    super();\n    this._intlChanges = _intl.changes.subscribe(() => this._changeDetectorRef.markForCheck());\n\n    if (defaults) {\n      const {pageSize, pageSizeOptions, hidePageSize, showFirstLastButtons} = defaults;\n\n      if (pageSize != null) {\n        this._pageSize = pageSize;\n      }\n\n      if (pageSizeOptions != null) {\n        this._pageSizeOptions = pageSizeOptions;\n      }\n\n      if (hidePageSize != null) {\n        this._hidePageSize = hidePageSize;\n      }\n\n      if (showFirstLastButtons != null) {\n        this._showFirstLastButtons = showFirstLastButtons;\n      }\n    }\n  }\n\n  ngOnInit() {\n    this._initialized = true;\n    this._updateDisplayedPageSizeOptions();\n    this._markInitialized();\n  }\n\n  ngOnDestroy() {\n    this._intlChanges.unsubscribe();\n  }\n\n  /** Advances to the next page if it exists. */\n  nextPage(): void {\n    if (!this.hasNextPage()) { return; }\n\n    const previousPageIndex = this.pageIndex;\n    this.pageIndex++;\n    this._emitPageEvent(previousPageIndex);\n  }\n\n  /** Move back to the previous page if it exists. */\n  previousPage(): void {\n    if (!this.hasPreviousPage()) { return; }\n\n    const previousPageIndex = this.pageIndex;\n    this.pageIndex--;\n    this._emitPageEvent(previousPageIndex);\n  }\n\n  /** Move to the first page if not already there. */\n  firstPage(): void {\n    // hasPreviousPage being false implies at the start\n    if (!this.hasPreviousPage()) { return; }\n\n    const previousPageIndex = this.pageIndex;\n    this.pageIndex = 0;\n    this._emitPageEvent(previousPageIndex);\n  }\n\n  /** Move to the last page if not already there. */\n  lastPage(): void {\n    // hasNextPage being false implies at the end\n    if (!this.hasNextPage()) { return; }\n\n    const previousPageIndex = this.pageIndex;\n    this.pageIndex = this.getNumberOfPages() - 1;\n    this._emitPageEvent(previousPageIndex);\n  }\n\n  /** Whether there is a previous page. */\n  hasPreviousPage(): boolean {\n    return this.pageIndex >= 1 && this.pageSize != 0;\n  }\n\n  /** Whether there is a next page. */\n  hasNextPage(): boolean {\n    const maxPageIndex = this.getNumberOfPages() - 1;\n    return this.pageIndex < maxPageIndex && this.pageSize != 0;\n  }\n\n  /** Calculate the number of pages */\n  getNumberOfPages(): number {\n    if (!this.pageSize) {\n      return 0;\n    }\n\n    return Math.ceil(this.length / this.pageSize);\n  }\n\n\n  /**\n   * Changes the page size so that the first item displayed on the page will still be\n   * displayed using the new page size.\n   *\n   * For example, if the page size is 10 and on the second page (items indexed 10-19) then\n   * switching so that the page size is 5 will set the third page as the current page so\n   * that the 10th item will still be displayed.\n   */\n  _changePageSize(pageSize: number) {\n    // Current page needs to be updated to reflect the new page size. Navigate to the page\n    // containing the previous page's first item.\n    const startIndex = this.pageIndex * this.pageSize;\n    const previousPageIndex = this.pageIndex;\n\n    this.pageIndex = Math.floor(startIndex / pageSize) || 0;\n    this.pageSize = pageSize;\n    this._emitPageEvent(previousPageIndex);\n  }\n\n  /** Checks whether the buttons for going forwards should be disabled. */\n  _nextButtonsDisabled() {\n    return this.disabled || !this.hasNextPage();\n  }\n\n  /** Checks whether the buttons for going backwards should be disabled. */\n  _previousButtonsDisabled() {\n    return this.disabled || !this.hasPreviousPage();\n  }\n\n  /**\n   * Updates the list of page size options to display to the user. Includes making sure that\n   * the page size is an option and that the list is sorted.\n   */\n  private _updateDisplayedPageSizeOptions() {\n    if (!this._initialized) { return; }\n\n    // If no page size is provided, use the first page size option or the default page size.\n    if (!this.pageSize) {\n      this._pageSize = this.pageSizeOptions.length != 0 ?\n          this.pageSizeOptions[0] :\n          DEFAULT_PAGE_SIZE;\n    }\n\n    this._displayedPageSizeOptions = this.pageSizeOptions.slice();\n\n    if (this._displayedPageSizeOptions.indexOf(this.pageSize) === -1) {\n      this._displayedPageSizeOptions.push(this.pageSize);\n    }\n\n    // Sort the numbers using a number-specific sort function.\n    this._displayedPageSizeOptions.sort((a, b) => a - b);\n    this._changeDetectorRef.markForCheck();\n  }\n\n  /** Emits an event notifying that a change of the paginator's properties has been triggered. */\n  private _emitPageEvent(previousPageIndex: number) {\n    this.page.emit({\n      previousPageIndex,\n      pageIndex: this.pageIndex,\n      pageSize: this.pageSize,\n      length: this.length\n    });\n  }\n\n  static ngAcceptInputType_pageIndex: NumberInput;\n  static ngAcceptInputType_length: NumberInput;\n  static ngAcceptInputType_pageSize: NumberInput;\n  static ngAcceptInputType_hidePageSize: BooleanInput;\n  static ngAcceptInputType_showFirstLastButtons: BooleanInput;\n  static ngAcceptInputType_disabled: BooleanInput;\n}\n"]}