primeng
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primeng) [ • 40.2 kB
JavaScript
import * as i0 from '@angular/core';
import { EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, Input, ViewChild, ContentChildren, Output, NgModule } from '@angular/core';
import * as i1 from '@angular/common';
import { CommonModule } from '@angular/common';
import { DomHandler } from 'primeng/dom';
import { PrimeTemplate } from 'primeng/api';
class Scroller {
constructor(cd, zone) {
this.cd = cd;
this.zone = zone;
this.onLazyLoad = new EventEmitter();
this.onScroll = new EventEmitter();
this.onScrollIndexChange = new EventEmitter();
this._tabindex = 0;
this._itemSize = 0;
this._orientation = 'vertical';
this._delay = 0;
this._resizeDelay = 10;
this._lazy = false;
this._disabled = false;
this._loaderDisabled = false;
this._showSpacer = true;
this._showLoader = false;
this._autoSize = false;
this.d_loading = false;
this.first = 0;
this.last = 0;
this.numItemsInViewport = 0;
this.lastScrollPos = 0;
this.loaderArr = [];
this.spacerStyle = {};
this.contentStyle = {};
this.initialized = false;
if (!this._disabled) {
this.zone.runOutsideAngular(() => {
this.windowResizeListener = this.onWindowResize.bind(this);
window.addEventListener('resize', this.windowResizeListener);
window.addEventListener('orientationchange', this.windowResizeListener);
});
}
}
get id() { return this._id; }
set id(val) { this._id = val; }
get style() { return this._style; }
set style(val) { this._style = val; }
get styleClass() { return this._styleClass; }
set styleClass(val) { this._styleClass = val; }
get tabindex() { return this._tabindex; }
set tabindex(val) { this._tabindex = val; }
get items() { return this._items; }
set items(val) { this._items = val; }
get itemSize() { return this._itemSize; }
set itemSize(val) { this._itemSize = val; }
get scrollHeight() { return this._scrollHeight; }
set scrollHeight(val) { this._scrollHeight = val; }
get scrollWidth() { return this._scrollWidth; }
set scrollWidth(val) { this._scrollWidth = val; }
get orientation() { return this._orientation; }
set orientation(val) { this._orientation = val; }
get delay() { return this._delay; }
set delay(val) { this._delay = val; }
get resizeDelay() { return this._resizeDelay; }
set resizeDelay(val) { this._resizeDelay = val; }
get lazy() { return this._lazy; }
set lazy(val) { this._lazy = val; }
get disabled() { return this._disabled; }
set disabled(val) { this._disabled = val; }
get loaderDisabled() { return this._loaderDisabled; }
set loaderDisabled(val) { this._loaderDisabled = val; }
get columns() { return this._columns; }
set columns(val) { this._columns = val; }
get showSpacer() { return this._showSpacer; }
set showSpacer(val) { this._showSpacer = val; }
get showLoader() { return this._showLoader; }
set showLoader(val) { this._showLoader = val; }
get numToleratedItems() { return this._numToleratedItems; }
set numToleratedItems(val) { this._numToleratedItems = val; }
get loading() { return this._loading; }
set loading(val) { this._loading = val; }
get autoSize() { return this._autoSize; }
set autoSize(val) { this._autoSize = val; }
get trackBy() { return this._trackBy; }
set trackBy(val) { this._trackBy = val; }
get options() { return this._options; }
set options(val) {
this._options = val;
if (val && typeof val === 'object') {
Object.entries(val).forEach(([k, v]) => this[`_${k}`] !== v && (this[`_${k}`] = v));
}
}
get vertical() {
return this._orientation === 'vertical';
}
get horizontal() {
return this._orientation === 'horizontal';
}
get both() {
return this._orientation === 'both';
}
get loadedItems() {
if (this._items && !this.d_loading) {
if (this.both)
return this._items.slice(this.first.rows, this.last.rows).map(item => this._columns ? item : item.slice(this.first.cols, this.last.cols));
else if (this.horizontal && this._columns)
return this._items;
else
return this._items.slice(this.first, this.last);
}
return [];
}
get loadedRows() {
return this.d_loading ? (this._loaderDisabled ? this.loaderArr : []) : this.loadedItems;
}
get loadedColumns() {
if (this._columns && (this.both || this.horizontal)) {
return this.d_loading && this._loaderDisabled ?
(this.both ? this.loaderArr[0] : this.loaderArr) :
this._columns.slice((this.both ? this.first.cols : this.first), (this.both ? this.last.cols : this.last));
}
return this._columns;
}
ngOnInit() {
this.setInitialState();
}
ngOnChanges(simpleChanges) {
let isLoadingChanged = false;
if (simpleChanges.loading) {
const { previousValue, currentValue } = simpleChanges.loading;
if (this.lazy && previousValue !== currentValue && currentValue !== this.d_loading) {
this.d_loading = currentValue;
isLoadingChanged = true;
}
}
if (this.initialized) {
const isChanged = !isLoadingChanged && (simpleChanges.items || simpleChanges.itemSize || simpleChanges.scrollHeight || simpleChanges.scrollWidth);
isChanged && this.init();
}
if (simpleChanges.orientation) {
this.lastScrollPos = this.both ? { top: 0, left: 0 } : 0;
}
if (simpleChanges.numToleratedItems) {
const { previousValue, currentValue } = simpleChanges.numToleratedItems;
if (previousValue !== currentValue && currentValue !== this.d_numToleratedItems) {
this.d_numToleratedItems = currentValue;
}
}
if (simpleChanges.options) {
const { previousValue, currentValue } = simpleChanges.options;
if (this.lazy && previousValue?.loading !== currentValue?.loading && currentValue?.loading !== this.d_loading) {
this.d_loading = currentValue.loading;
}
if (previousValue?.numToleratedItems !== currentValue?.numToleratedItems && currentValue?.numToleratedItems !== this.d_numToleratedItems) {
this.d_numToleratedItems = currentValue.numToleratedItems;
}
}
}
ngAfterContentInit() {
this.templates.forEach((item) => {
switch (item.getType()) {
case 'content':
this.contentTemplate = item.template;
break;
case 'item':
this.itemTemplate = item.template;
break;
case 'loader':
this.loaderTemplate = item.template;
break;
case 'loadericon':
this.loaderIconTemplate = item.template;
break;
default:
this.itemTemplate = item.template;
break;
}
});
}
ngAfterViewInit() {
this.setContentEl(this.contentEl);
this.init();
this.defaultWidth = DomHandler.getWidth(this.elementViewChild.nativeElement);
this.defaultHeight = DomHandler.getHeight(this.elementViewChild.nativeElement);
this.initialized = true;
}
ngAfterViewChecked() {
this.calculateAutoSize();
}
ngOnDestroy() {
if (this.windowResizeListener) {
window.removeEventListener('resize', this.windowResizeListener);
window.removeEventListener('orientationchange', this.windowResizeListener);
this.windowResizeListener = null;
}
}
init() {
if (!this._disabled) {
this.setSize();
this.calculateOptions();
this.setSpacerSize();
this.cd.detectChanges();
}
}
setContentEl(el) {
this.contentEl = el || this.contentViewChild?.nativeElement || DomHandler.findSingle(this.elementViewChild?.nativeElement, '.p-scroller-content');
}
setInitialState() {
this.first = this.both ? { rows: 0, cols: 0 } : 0;
this.last = this.both ? { rows: 0, cols: 0 } : 0;
this.numItemsInViewport = this.both ? { rows: 0, cols: 0 } : 0;
this.lastScrollPos = this.both ? { top: 0, left: 0 } : 0;
this.d_loading = this._loading || false;
this.d_numToleratedItems = this._numToleratedItems;
}
getElementRef() {
return this.elementViewChild;
}
scrollTo(options) {
this.lastScrollPos = this.both ? { top: 0, left: 0 } : 0;
this.elementViewChild?.nativeElement?.scrollTo(options);
}
scrollToIndex(index, behavior = 'auto') {
const { numToleratedItems } = this.calculateNumItems();
const contentPos = this.getContentPosition();
const calculateFirst = (_index = 0, _numT) => (_index <= _numT ? 0 : _index);
const calculateCoord = (_first, _size, _cpos) => (_first * _size) + _cpos;
const scrollTo = (left = 0, top = 0) => this.scrollTo({ left, top, behavior });
if (this.both) {
const newFirst = { rows: calculateFirst(index[0], numToleratedItems[0]), cols: calculateFirst(index[1], numToleratedItems[1]) };
if (newFirst.rows !== this.first.rows || newFirst.cols !== this.first.cols) {
scrollTo(calculateCoord(newFirst.cols, this._itemSize[1], contentPos.left), calculateCoord(newFirst.rows, this._itemSize[0], contentPos.top));
}
}
else {
const newFirst = calculateFirst(index, numToleratedItems);
if (newFirst !== this.first) {
this.horizontal ? scrollTo(calculateCoord(newFirst, this._itemSize, contentPos.left), 0) : scrollTo(0, calculateCoord(newFirst, this._itemSize, contentPos.top));
}
}
}
scrollInView(index, to, behavior = 'auto') {
if (to) {
const { first, viewport } = this.getRenderedRange();
const scrollTo = (left = 0, top = 0) => this.scrollTo({ left, top, behavior });
const isToStart = to === 'to-start';
const isToEnd = to === 'to-end';
if (isToStart) {
if (this.both) {
if (viewport.first.rows - first.rows > index[0]) {
scrollTo(viewport.first.cols * this._itemSize[1], (viewport.first.rows - 1) * this._itemSize[0]);
}
else if (viewport.first.cols - first.cols > index[1]) {
scrollTo((viewport.first.cols - 1) * this._itemSize[1], viewport.first.rows * this._itemSize[0]);
}
}
else {
if (viewport.first - first > index) {
const pos = (viewport.first - 1) * this._itemSize;
this.horizontal ? scrollTo(pos, 0) : scrollTo(0, pos);
}
}
}
else if (isToEnd) {
if (this.both) {
if (viewport.last.rows - first.rows <= index[0] + 1) {
scrollTo(viewport.first.cols * this._itemSize[1], (viewport.first.rows + 1) * this._itemSize[0]);
}
else if (viewport.last.cols - first.cols <= index[1] + 1) {
scrollTo((viewport.first.cols + 1) * this._itemSize[1], viewport.first.rows * this._itemSize[0]);
}
}
else {
if (viewport.last - first <= index + 1) {
const pos = (viewport.first + 1) * this._itemSize;
this.horizontal ? scrollTo(pos, 0) : scrollTo(0, pos);
}
}
}
}
else {
this.scrollToIndex(index, behavior);
}
}
getRenderedRange() {
const calculateFirstInViewport = (_pos, _size) => Math.floor(_pos / (_size || _pos));
let firstInViewport = this.first;
let lastInViewport = 0;
if (this.elementViewChild?.nativeElement) {
const { scrollTop, scrollLeft } = this.elementViewChild.nativeElement;
if (this.both) {
firstInViewport = { rows: calculateFirstInViewport(scrollTop, this._itemSize[0]), cols: calculateFirstInViewport(scrollLeft, this._itemSize[1]) };
lastInViewport = { rows: firstInViewport.rows + this.numItemsInViewport.rows, cols: firstInViewport.cols + this.numItemsInViewport.cols };
}
else {
const scrollPos = this.horizontal ? scrollLeft : scrollTop;
firstInViewport = calculateFirstInViewport(scrollPos, this._itemSize);
lastInViewport = firstInViewport + this.numItemsInViewport;
}
}
return {
first: this.first,
last: this.last,
viewport: {
first: firstInViewport,
last: lastInViewport
}
};
}
calculateNumItems() {
const contentPos = this.getContentPosition();
const contentWidth = this.elementViewChild?.nativeElement ? this.elementViewChild.nativeElement.offsetWidth - contentPos.left : 0;
const contentHeight = this.elementViewChild?.nativeElement ? this.elementViewChild.nativeElement.offsetHeight - contentPos.top : 0;
const calculateNumItemsInViewport = (_contentSize, _itemSize) => Math.ceil(_contentSize / (_itemSize || _contentSize));
const calculateNumToleratedItems = (_numItems) => Math.ceil(_numItems / 2);
const numItemsInViewport = this.both ?
{ rows: calculateNumItemsInViewport(contentHeight, this._itemSize[0]), cols: calculateNumItemsInViewport(contentWidth, this._itemSize[1]) } :
calculateNumItemsInViewport((this.horizontal ? contentWidth : contentHeight), this._itemSize);
const numToleratedItems = this.d_numToleratedItems || (this.both ?
[calculateNumToleratedItems(numItemsInViewport.rows), calculateNumToleratedItems(numItemsInViewport.cols)] :
calculateNumToleratedItems(numItemsInViewport));
return { numItemsInViewport, numToleratedItems };
}
calculateOptions() {
const { numItemsInViewport, numToleratedItems } = this.calculateNumItems();
const calculateLast = (_first, _num, _numT, _isCols = false) => this.getLast(_first + _num + ((_first < _numT ? 2 : 3) * _numT), _isCols);
const first = this.first;
const last = this.both ?
{ rows: calculateLast(this.first.rows, numItemsInViewport.rows, numToleratedItems[0]), cols: calculateLast(this.first.cols, numItemsInViewport.cols, numToleratedItems[1], true) } :
calculateLast(this.first, numItemsInViewport, numToleratedItems);
this.last = last;
this.numItemsInViewport = numItemsInViewport;
this.d_numToleratedItems = numToleratedItems;
if (this.showLoader) {
this.loaderArr = this.both ?
Array.from({ length: numItemsInViewport.rows }).map(() => Array.from({ length: numItemsInViewport.cols })) :
Array.from({ length: numItemsInViewport });
}
if (this._lazy) {
this.handleEvents('onLazyLoad', { first, last });
}
}
calculateAutoSize() {
if (this._autoSize && !this.d_loading) {
Promise.resolve().then(() => {
if (this.contentEl) {
this.contentEl.style.minHeight = this.contentEl.style.minWidth = 'auto';
const { offsetWidth, offsetHeight } = this.contentEl;
(this.both || this.horizontal) && (this.elementViewChild.nativeElement.style.width = (offsetWidth < this.defaultWidth ? offsetWidth : this.defaultWidth) + 'px');
(this.both || this.vertical) && (this.elementViewChild.nativeElement.style.height = (offsetHeight < this.defaultHeight ? offsetHeight : this.defaultHeight) + 'px');
this.contentEl.style.minHeight = this.contentEl.style.minWidth = '';
}
});
}
}
getLast(last = 0, isCols = false) {
return this._items ? Math.min((isCols ? (this._columns || this._items[0]).length : this._items.length), last) : 0;
}
getContentPosition() {
if (this.contentEl) {
const style = getComputedStyle(this.contentEl);
const left = parseFloat(style.paddingLeft) + Math.max((parseFloat(style.left) || 0), 0);
const right = parseFloat(style.paddingRight) + Math.max((parseFloat(style.right) || 0), 0);
const top = parseFloat(style.paddingTop) + Math.max((parseFloat(style.top) || 0), 0);
const bottom = parseFloat(style.paddingBottom) + Math.max((parseFloat(style.bottom) || 0), 0);
return { left, right, top, bottom, x: left + right, y: top + bottom };
}
return { left: 0, right: 0, top: 0, bottom: 0, x: 0, y: 0 };
}
setSize() {
if (this.elementViewChild?.nativeElement) {
const parentElement = this.elementViewChild.nativeElement.parentElement.parentElement;
const width = this._scrollWidth || `${(this.elementViewChild.nativeElement.offsetWidth || parentElement.offsetWidth)}px`;
const height = this._scrollHeight || `${(this.elementViewChild.nativeElement.offsetHeight || parentElement.offsetHeight)}px`;
const setProp = (_name, _value) => this.elementViewChild.nativeElement.style[_name] = _value;
if (this.both || this.horizontal) {
setProp('height', height);
setProp('width', width);
}
else {
setProp('height', height);
}
}
}
setSpacerSize() {
if (this._items) {
const contentPos = this.getContentPosition();
const setProp = (_name, _value, _size, _cpos = 0) => this.spacerStyle = { ...this.spacerStyle, ...{ [`${_name}`]: (((_value || []).length * _size) + _cpos) + 'px' } };
if (this.both) {
setProp('height', this._items, this._itemSize[0], contentPos.y);
setProp('width', (this._columns || this._items[1]), this._itemSize[1], contentPos.x);
}
else {
this.horizontal ? setProp('width', (this._columns || this._items), this._itemSize, contentPos.x) : setProp('height', this._items, this._itemSize, contentPos.y);
}
}
}
setContentPosition(pos) {
if (this.contentEl) {
const first = pos ? pos.first : this.first;
const calculateTranslateVal = (_first, _size) => (_first * _size);
const setTransform = (_x = 0, _y = 0) => this.contentStyle = { ...this.contentStyle, ...{ transform: `translate3d(${_x}px, ${_y}px, 0)` } };
if (this.both) {
setTransform(calculateTranslateVal(first.cols, this._itemSize[1]), calculateTranslateVal(first.rows, this._itemSize[0]));
}
else {
const translateVal = calculateTranslateVal(first, this._itemSize);
this.horizontal ? setTransform(translateVal, 0) : setTransform(0, translateVal);
}
}
}
onScrollPositionChange(event) {
const target = event.target;
const contentPos = this.getContentPosition();
const calculateScrollPos = (_pos, _cpos) => _pos ? (_pos > _cpos ? _pos - _cpos : _pos) : 0;
const calculateCurrentIndex = (_pos, _size) => Math.floor(_pos / (_size || _pos));
const calculateTriggerIndex = (_currentIndex, _first, _last, _num, _numT, _isScrollDownOrRight) => {
return (_currentIndex <= _numT ? _numT : (_isScrollDownOrRight ? (_last - _num - _numT) : (_first + _numT - 1)));
};
const calculateFirst = (_currentIndex, _triggerIndex, _first, _last, _num, _numT, _isScrollDownOrRight) => {
if (_currentIndex <= _numT)
return 0;
else
return Math.max(0, _isScrollDownOrRight ?
(_currentIndex < _triggerIndex ? _first : _currentIndex - _numT) :
(_currentIndex > _triggerIndex ? _first : _currentIndex - (2 * _numT)));
};
const calculateLast = (_currentIndex, _first, _last, _num, _numT, _isCols = false) => {
let lastValue = _first + _num + (2 * _numT);
if (_currentIndex >= _numT) {
lastValue += (_numT + 1);
}
return this.getLast(lastValue, _isCols);
};
const scrollTop = calculateScrollPos(target.scrollTop, contentPos.top);
const scrollLeft = calculateScrollPos(target.scrollLeft, contentPos.left);
let newFirst = this.both ? { rows: 0, cols: 0 } : 0;
let newLast = this.last;
let isRangeChanged = false;
let newScrollPos = this.lastScrollPos;
if (this.both) {
const isScrollDown = this.lastScrollPos.top <= scrollTop;
const isScrollRight = this.lastScrollPos.left <= scrollLeft;
const currentIndex = { rows: calculateCurrentIndex(scrollTop, this._itemSize[0]), cols: calculateCurrentIndex(scrollLeft, this._itemSize[1]) };
const triggerIndex = {
rows: calculateTriggerIndex(currentIndex.rows, this.first.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0], isScrollDown),
cols: calculateTriggerIndex(currentIndex.cols, this.first.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], isScrollRight)
};
newFirst = {
rows: calculateFirst(currentIndex.rows, triggerIndex.rows, this.first.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0], isScrollDown),
cols: calculateFirst(currentIndex.cols, triggerIndex.cols, this.first.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], isScrollRight)
};
newLast = {
rows: calculateLast(currentIndex.rows, newFirst.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0]),
cols: calculateLast(currentIndex.cols, newFirst.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], true)
};
isRangeChanged = (newFirst.rows !== this.first.rows || newLast.rows !== this.last.rows) || (newFirst.cols !== this.first.cols || newLast.cols !== this.last.cols);
newScrollPos = { top: scrollTop, left: scrollLeft };
}
else {
const scrollPos = this.horizontal ? scrollLeft : scrollTop;
const isScrollDownOrRight = this.lastScrollPos <= scrollPos;
const currentIndex = calculateCurrentIndex(scrollPos, this._itemSize);
const triggerIndex = calculateTriggerIndex(currentIndex, this.first, this.last, this.numItemsInViewport, this.d_numToleratedItems, isScrollDownOrRight);
newFirst = calculateFirst(currentIndex, triggerIndex, this.first, this.last, this.numItemsInViewport, this.d_numToleratedItems, isScrollDownOrRight);
newLast = calculateLast(currentIndex, newFirst, this.last, this.numItemsInViewport, this.d_numToleratedItems);
isRangeChanged = newFirst !== this.first || newLast !== this.last;
newScrollPos = scrollPos;
}
return {
first: newFirst,
last: newLast,
isRangeChanged,
scrollPos: newScrollPos
};
}
onScrollChange(event) {
const { first, last, isRangeChanged, scrollPos } = this.onScrollPositionChange(event);
if (isRangeChanged) {
const newState = { first, last };
this.setContentPosition(newState);
this.first = first;
this.last = last;
this.lastScrollPos = scrollPos;
this.handleEvents('onScrollIndexChange', newState);
if (this._lazy) {
this.handleEvents('onLazyLoad', newState);
}
}
}
onContainerScroll(event) {
this.handleEvents('onScroll', { originalEvent: event });
if (this._delay) {
if (this.scrollTimeout) {
clearTimeout(this.scrollTimeout);
}
if (!this.d_loading && this.showLoader) {
const { isRangeChanged: changed } = this.onScrollPositionChange(event);
if (changed) {
this.d_loading = true;
this.cd.detectChanges();
}
}
this.scrollTimeout = setTimeout(() => {
this.onScrollChange(event);
if (this.d_loading && this.showLoader && (!this._lazy || this._loading === undefined)) {
this.d_loading = false;
this.cd.detectChanges();
}
}, this._delay);
}
else {
this.onScrollChange(event);
}
}
onWindowResize() {
if (this.resizeTimeout) {
clearTimeout(this.resizeTimeout);
}
this.resizeTimeout = setTimeout(() => {
if (this.elementViewChild) {
const [width, height] = [DomHandler.getWidth(this.elementViewChild.nativeElement), DomHandler.getHeight(this.elementViewChild.nativeElement)];
const [isDiffWidth, isDiffHeight] = [width !== this.defaultWidth, height !== this.defaultHeight];
const reinit = this.both ? (isDiffWidth || isDiffHeight) : (this.horizontal ? isDiffWidth : (this.vertical ? isDiffHeight : false));
reinit && this.zone.run(() => {
this.d_numToleratedItems = this._numToleratedItems;
this.defaultWidth = width;
this.defaultHeight = height;
this.init();
});
}
}, this._resizeDelay);
}
handleEvents(name, params) {
return this.options && this.options[name] ? this.options[name](params) : this[name].emit(params);
}
getContentOptions() {
return {
contentStyleClass: `p-scroller-content ${this.d_loading ? 'p-scroller-loading' : ''}`,
items: this.loadedItems,
getItemOptions: (index) => this.getOptions(index),
loading: this.d_loading,
getLoaderOptions: (index, options) => this.getLoaderOptions(index, options),
itemSize: this._itemSize,
rows: this.loadedRows,
columns: this.loadedColumns,
spacerStyle: this.spacerStyle,
contentStyle: this.contentStyle,
vertical: this.vertical,
horizontal: this.horizontal,
both: this.both
};
}
getOptions(renderedIndex) {
const count = (this._items || []).length;
const index = this.both ? this.first.rows + renderedIndex : this.first + renderedIndex;
return {
index,
count,
first: index === 0,
last: index === (count - 1),
even: index % 2 === 0,
odd: index % 2 !== 0
};
}
getLoaderOptions(index, extOptions) {
const count = this.loaderArr.length;
return {
index,
count,
first: index === 0,
last: index === (count - 1),
even: index % 2 === 0,
odd: index % 2 !== 0,
...extOptions
};
}
}
Scroller.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.0.7", ngImport: i0, type: Scroller, deps: [{ token: i0.ChangeDetectorRef }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Component });
Scroller.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "14.0.7", type: Scroller, selector: "p-scroller", inputs: { id: "id", style: "style", styleClass: "styleClass", tabindex: "tabindex", items: "items", itemSize: "itemSize", scrollHeight: "scrollHeight", scrollWidth: "scrollWidth", orientation: "orientation", delay: "delay", resizeDelay: "resizeDelay", lazy: "lazy", disabled: "disabled", loaderDisabled: "loaderDisabled", columns: "columns", showSpacer: "showSpacer", showLoader: "showLoader", numToleratedItems: "numToleratedItems", loading: "loading", autoSize: "autoSize", trackBy: "trackBy", options: "options" }, outputs: { onLazyLoad: "onLazyLoad", onScroll: "onScroll", onScrollIndexChange: "onScrollIndexChange" }, host: { classAttribute: "p-scroller-viewport p-element" }, queries: [{ propertyName: "templates", predicate: PrimeTemplate }], viewQueries: [{ propertyName: "elementViewChild", first: true, predicate: ["element"], descendants: true }, { propertyName: "contentViewChild", first: true, predicate: ["content"], descendants: true }], usesOnChanges: true, ngImport: i0, template: `
<ng-container *ngIf="!_disabled; else disabledContainer">
<div #element [attr.id]="_id" [attr.tabindex]="tabindex" [ngStyle]="_style" [class]="_styleClass"
[ngClass]="{'p-scroller': true, 'p-both-scroll': both, 'p-horizontal-scroll': horizontal}"
(scroll)="onContainerScroll($event)">
<ng-container *ngIf="contentTemplate; else buildInContent">
<ng-container *ngTemplateOutlet="contentTemplate; context: {$implicit: loadedItems, options: getContentOptions()}"></ng-container>
</ng-container>
<ng-template #buildInContent>
<div #content class="p-scroller-content" [ngClass]="{'p-scroller-loading': d_loading}" [ngStyle]="contentStyle">
<ng-container *ngFor="let item of loadedItems; let index = index; trackBy: _trackBy || index">
<ng-container *ngTemplateOutlet="itemTemplate; context: {$implicit: item, options: getOptions(index)}"></ng-container>
</ng-container>
</div>
</ng-template>
<div *ngIf="_showSpacer" class="p-scroller-spacer" [ngStyle]="spacerStyle"></div>
<div *ngIf="!loaderDisabled && _showLoader && d_loading" class="p-scroller-loader" [ngClass]="{'p-component-overlay': !loaderTemplate}">
<ng-container *ngIf="loaderTemplate; else buildInLoader">
<ng-container *ngFor="let item of loaderArr; let index = index">
<ng-container *ngTemplateOutlet="loaderTemplate; context: {options: getLoaderOptions(index, both && { numCols: _numItemsInViewport.cols })}"></ng-container>
</ng-container>
</ng-container>
<ng-template #buildInLoader>
<ng-container *ngIf="loaderIconTemplate; else buildInLoaderIcon">
<ng-container *ngTemplateOutlet="loaderIconTemplate; context: {options: { styleClass: 'p-scroller-loading-icon' }}"></ng-container>
</ng-container>
<ng-template #buildInLoaderIcon>
<i class="p-scroller-loading-icon pi pi-spinner pi-spin"></i>
</ng-template>
</ng-template>
</div>
</div>
</ng-container>
<ng-template #disabledContainer>
<ng-content></ng-content>
<ng-container *ngIf="contentTemplate">
<ng-container *ngTemplateOutlet="contentTemplate; context: {$implicit: items, options: {rows: _items, columns: loadedColumns}}"></ng-container>
</ng-container>
</ng-template>
`, isInline: true, styles: ["p-scroller{flex:1;outline:0 none}.p-scroller{position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;outline:0 none}.p-scroller-content{position:absolute;top:0;left:0;min-height:100%;min-width:100%;will-change:transform}.p-scroller-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0;pointer-events:none}.p-scroller-loader{position:sticky;top:0;left:0;width:100%;height:100%}.p-scroller-loader.p-component-overlay{display:flex;align-items:center;justify-content:center}.p-scroller-loading-icon{font-size:2rem}\n"], dependencies: [{ kind: "directive", type: i1.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { kind: "directive", type: i1.NgForOf, selector: "[ngFor][ngForOf]", inputs: ["ngForOf", "ngForTrackBy", "ngForTemplate"] }, { kind: "directive", type: i1.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { kind: "directive", type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "directive", type: i1.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }], changeDetection: i0.ChangeDetectionStrategy.Default, encapsulation: i0.ViewEncapsulation.None });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.0.7", ngImport: i0, type: Scroller, decorators: [{
type: Component,
args: [{ selector: 'p-scroller', template: `
<ng-container *ngIf="!_disabled; else disabledContainer">
<div #element [attr.id]="_id" [attr.tabindex]="tabindex" [ngStyle]="_style" [class]="_styleClass"
[ngClass]="{'p-scroller': true, 'p-both-scroll': both, 'p-horizontal-scroll': horizontal}"
(scroll)="onContainerScroll($event)">
<ng-container *ngIf="contentTemplate; else buildInContent">
<ng-container *ngTemplateOutlet="contentTemplate; context: {$implicit: loadedItems, options: getContentOptions()}"></ng-container>
</ng-container>
<ng-template #buildInContent>
<div #content class="p-scroller-content" [ngClass]="{'p-scroller-loading': d_loading}" [ngStyle]="contentStyle">
<ng-container *ngFor="let item of loadedItems; let index = index; trackBy: _trackBy || index">
<ng-container *ngTemplateOutlet="itemTemplate; context: {$implicit: item, options: getOptions(index)}"></ng-container>
</ng-container>
</div>
</ng-template>
<div *ngIf="_showSpacer" class="p-scroller-spacer" [ngStyle]="spacerStyle"></div>
<div *ngIf="!loaderDisabled && _showLoader && d_loading" class="p-scroller-loader" [ngClass]="{'p-component-overlay': !loaderTemplate}">
<ng-container *ngIf="loaderTemplate; else buildInLoader">
<ng-container *ngFor="let item of loaderArr; let index = index">
<ng-container *ngTemplateOutlet="loaderTemplate; context: {options: getLoaderOptions(index, both && { numCols: _numItemsInViewport.cols })}"></ng-container>
</ng-container>
</ng-container>
<ng-template #buildInLoader>
<ng-container *ngIf="loaderIconTemplate; else buildInLoaderIcon">
<ng-container *ngTemplateOutlet="loaderIconTemplate; context: {options: { styleClass: 'p-scroller-loading-icon' }}"></ng-container>
</ng-container>
<ng-template #buildInLoaderIcon>
<i class="p-scroller-loading-icon pi pi-spinner pi-spin"></i>
</ng-template>
</ng-template>
</div>
</div>
</ng-container>
<ng-template #disabledContainer>
<ng-content></ng-content>
<ng-container *ngIf="contentTemplate">
<ng-container *ngTemplateOutlet="contentTemplate; context: {$implicit: items, options: {rows: _items, columns: loadedColumns}}"></ng-container>
</ng-container>
</ng-template>
`, changeDetection: ChangeDetectionStrategy.Default, encapsulation: ViewEncapsulation.None, host: {
'class': 'p-scroller-viewport p-element'
}, styles: ["p-scroller{flex:1;outline:0 none}.p-scroller{position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;outline:0 none}.p-scroller-content{position:absolute;top:0;left:0;min-height:100%;min-width:100%;will-change:transform}.p-scroller-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0;pointer-events:none}.p-scroller-loader{position:sticky;top:0;left:0;width:100%;height:100%}.p-scroller-loader.p-component-overlay{display:flex;align-items:center;justify-content:center}.p-scroller-loading-icon{font-size:2rem}\n"] }]
}], ctorParameters: function () { return [{ type: i0.ChangeDetectorRef }, { type: i0.NgZone }]; }, propDecorators: { id: [{
type: Input
}], style: [{
type: Input
}], styleClass: [{
type: Input
}], tabindex: [{
type: Input
}], items: [{
type: Input
}], itemSize: [{
type: Input
}], scrollHeight: [{
type: Input
}], scrollWidth: [{
type: Input
}], orientation: [{
type: Input
}], delay: [{
type: Input
}], resizeDelay: [{
type: Input
}], lazy: [{
type: Input
}], disabled: [{
type: Input
}], loaderDisabled: [{
type: Input
}], columns: [{
type: Input
}], showSpacer: [{
type: Input
}], showLoader: [{
type: Input
}], numToleratedItems: [{
type: Input
}], loading: [{
type: Input
}], autoSize: [{
type: Input
}], trackBy: [{
type: Input
}], options: [{
type: Input
}], elementViewChild: [{
type: ViewChild,
args: ['element']
}], contentViewChild: [{
type: ViewChild,
args: ['content']
}], templates: [{
type: ContentChildren,
args: [PrimeTemplate]
}], onLazyLoad: [{
type: Output
}], onScroll: [{
type: Output
}], onScrollIndexChange: [{
type: Output
}] } });
class ScrollerModule {
}
ScrollerModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.0.7", ngImport: i0, type: ScrollerModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
ScrollerModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "14.0.7", ngImport: i0, type: ScrollerModule, declarations: [Scroller], imports: [CommonModule], exports: [Scroller] });
ScrollerModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "14.0.7", ngImport: i0, type: ScrollerModule, imports: [CommonModule] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.0.7", ngImport: i0, type: ScrollerModule, decorators: [{
type: NgModule,
args: [{
imports: [CommonModule],
exports: [Scroller],
declarations: [Scroller]
}]
}] });
/**
* Generated bundle index. Do not edit.
*/
export { Scroller, ScrollerModule };
//# sourceMappingURL=primeng-scroller.mjs.map