primeng
Version:
[](https://badge.fury.io/js/primeng) [](https://www.npmjs.com/package/primeng) [ • 16.6 kB
JavaScript
import * as i1 from '@angular/common';
import { isPlatformBrowser, DOCUMENT, CommonModule } from '@angular/common';
import * as i0 from '@angular/core';
import { PLATFORM_ID, Component, ChangeDetectionStrategy, ViewEncapsulation, Inject, Input, ViewChild, ContentChildren, NgModule } from '@angular/core';
import { PrimeTemplate } from 'primeng/api';
import { DomHandler } from 'primeng/dom';
/**
* ScrollPanel is a cross browser, lightweight and themable alternative to native browser scrollbar.
* @group Components
*/
class ScrollPanel {
platformId;
el;
zone;
cd;
document;
renderer;
/**
* Inline style of the component.
* @group Props
*/
style;
/**
* Style class of the component.
* @group Props
*/
styleClass;
containerViewChild;
contentViewChild;
xBarViewChild;
yBarViewChild;
templates;
scrollYRatio;
scrollXRatio;
timeoutFrame = (fn) => setTimeout(fn, 0);
initialized = false;
lastPageY;
lastPageX;
isXBarClicked = false;
isYBarClicked = false;
contentTemplate;
windowResizeListener;
contentScrollListener;
mouseEnterListener;
xBarMouseDownListener;
yBarMouseDownListener;
documentMouseMoveListener;
documentMouseUpListener;
constructor(platformId, el, zone, cd, document, renderer) {
this.platformId = platformId;
this.el = el;
this.zone = zone;
this.cd = cd;
this.document = document;
this.renderer = renderer;
}
ngAfterViewInit() {
if (isPlatformBrowser(this.platformId)) {
this.zone.runOutsideAngular(() => {
this.moveBar();
this.moveBar = this.moveBar.bind(this);
this.onXBarMouseDown = this.onXBarMouseDown.bind(this);
this.onYBarMouseDown = this.onYBarMouseDown.bind(this);
this.onDocumentMouseMove = this.onDocumentMouseMove.bind(this);
this.onDocumentMouseUp = this.onDocumentMouseUp.bind(this);
this.windowResizeListener = this.renderer.listen(window, 'resize', this.moveBar);
this.contentScrollListener = this.renderer.listen(this.contentViewChild.nativeElement, 'scroll', this.moveBar);
this.mouseEnterListener = this.renderer.listen(this.contentViewChild.nativeElement, 'mouseenter', this.moveBar);
this.xBarMouseDownListener = this.renderer.listen(this.xBarViewChild.nativeElement, 'mousedown', this.onXBarMouseDown);
this.yBarMouseDownListener = this.renderer.listen(this.yBarViewChild.nativeElement, 'mousedown', this.onYBarMouseDown);
this.calculateContainerHeight();
this.initialized = true;
});
}
}
ngAfterContentInit() {
this.templates.forEach((item) => {
switch (item.getType()) {
case 'content':
this.contentTemplate = item.template;
break;
default:
this.contentTemplate = item.template;
break;
}
});
}
calculateContainerHeight() {
let container = this.containerViewChild.nativeElement;
let content = this.contentViewChild.nativeElement;
let xBar = this.xBarViewChild.nativeElement;
const window = this.document.defaultView;
let containerStyles = window.getComputedStyle(container), xBarStyles = window.getComputedStyle(xBar), pureContainerHeight = DomHandler.getHeight(container) - parseInt(xBarStyles['height'], 10);
if (containerStyles['max-height'] != 'none' && pureContainerHeight == 0) {
if (content.offsetHeight + parseInt(xBarStyles['height'], 10) > parseInt(containerStyles['max-height'], 10)) {
container.style.height = containerStyles['max-height'];
}
else {
container.style.height = content.offsetHeight + parseFloat(containerStyles.paddingTop) + parseFloat(containerStyles.paddingBottom) + parseFloat(containerStyles.borderTopWidth) + parseFloat(containerStyles.borderBottomWidth) + 'px';
}
}
}
moveBar() {
let container = this.containerViewChild.nativeElement;
let content = this.contentViewChild.nativeElement;
/* horizontal scroll */
let xBar = this.xBarViewChild.nativeElement;
let totalWidth = content.scrollWidth;
let ownWidth = content.clientWidth;
let bottom = (container.clientHeight - xBar.clientHeight) * -1;
this.scrollXRatio = ownWidth / totalWidth;
/* vertical scroll */
let yBar = this.yBarViewChild.nativeElement;
let totalHeight = content.scrollHeight;
let ownHeight = content.clientHeight;
let right = (container.clientWidth - yBar.clientWidth) * -1;
this.scrollYRatio = ownHeight / totalHeight;
this.requestAnimationFrame(() => {
if (this.scrollXRatio >= 1) {
DomHandler.addClass(xBar, 'p-scrollpanel-hidden');
}
else {
DomHandler.removeClass(xBar, 'p-scrollpanel-hidden');
const xBarWidth = Math.max(this.scrollXRatio * 100, 10);
const xBarLeft = (content.scrollLeft * (100 - xBarWidth)) / (totalWidth - ownWidth);
xBar.style.cssText = 'width:' + xBarWidth + '%; left:' + xBarLeft + '%;bottom:' + bottom + 'px;';
}
if (this.scrollYRatio >= 1) {
DomHandler.addClass(yBar, 'p-scrollpanel-hidden');
}
else {
DomHandler.removeClass(yBar, 'p-scrollpanel-hidden');
const yBarHeight = Math.max(this.scrollYRatio * 100, 10);
const yBarTop = (content.scrollTop * (100 - yBarHeight)) / (totalHeight - ownHeight);
yBar.style.cssText = 'height:' + yBarHeight + '%; top: calc(' + yBarTop + '% - ' + xBar.clientHeight + 'px);right:' + right + 'px;';
}
});
this.cd.markForCheck();
}
onYBarMouseDown(e) {
this.isYBarClicked = true;
this.lastPageY = e.pageY;
DomHandler.addClass(this.yBarViewChild.nativeElement, 'p-scrollpanel-grabbed');
DomHandler.addClass(this.document.body, 'p-scrollpanel-grabbed');
this.bindDocumentMouseListeners();
e.preventDefault();
}
bindDocumentMouseListeners() {
this.documentMouseMoveListener = this.renderer.listen(this.document, 'mousemove', this.onDocumentMouseMove.bind(this));
this.documentMouseUpListener = this.renderer.listen(this.document, 'mouseup', this.onDocumentMouseUp.bind(this));
}
unbindDocumentMouseListeners() {
if (this.documentMouseMoveListener) {
this.documentMouseMoveListener();
this.documentMouseMoveListener = null;
}
if (this.documentMouseUpListener) {
this.documentMouseUpListener();
this.documentMouseUpListener = null;
}
}
onXBarMouseDown(e) {
this.isXBarClicked = true;
this.lastPageX = e.pageX;
DomHandler.addClass(this.xBarViewChild.nativeElement, 'p-scrollpanel-grabbed');
DomHandler.addClass(this.document.body, 'p-scrollpanel-grabbed');
this.bindDocumentMouseListeners();
e.preventDefault();
}
onDocumentMouseMove(e) {
if (this.isXBarClicked) {
this.onMouseMoveForXBar(e);
}
else if (this.isYBarClicked) {
this.onMouseMoveForYBar(e);
}
else {
this.onMouseMoveForXBar(e);
this.onMouseMoveForYBar(e);
}
}
onMouseMoveForXBar(e) {
let deltaX = e.pageX - this.lastPageX;
this.lastPageX = e.pageX;
this.requestAnimationFrame(() => {
this.contentViewChild.nativeElement.scrollLeft += deltaX / this.scrollXRatio;
});
}
onMouseMoveForYBar(e) {
let deltaY = e.pageY - this.lastPageY;
this.lastPageY = e.pageY;
this.requestAnimationFrame(() => {
this.contentViewChild.nativeElement.scrollTop += deltaY / this.scrollYRatio;
});
}
/**
* Scrolls the top location to the given value.
* @param scrollTop
* @group Method
*/
scrollTop(scrollTop) {
let scrollableHeight = this.contentViewChild.nativeElement.scrollHeight - this.contentViewChild.nativeElement.clientHeight;
scrollTop = scrollTop > scrollableHeight ? scrollableHeight : scrollTop > 0 ? scrollTop : 0;
this.contentViewChild.nativeElement.scrollTop = scrollTop;
}
onDocumentMouseUp(e) {
DomHandler.removeClass(this.yBarViewChild.nativeElement, 'p-scrollpanel-grabbed');
DomHandler.removeClass(this.xBarViewChild.nativeElement, 'p-scrollpanel-grabbed');
DomHandler.removeClass(this.document.body, 'p-scrollpanel-grabbed');
this.unbindDocumentMouseListeners();
this.isXBarClicked = false;
this.isYBarClicked = false;
}
requestAnimationFrame(f) {
let frame = window.requestAnimationFrame || this.timeoutFrame;
frame(f);
}
unbindListeners() {
if (this.windowResizeListener) {
this.windowResizeListener();
this.windowResizeListener = null;
}
if (this.contentScrollListener) {
this.contentScrollListener();
this.contentScrollListener = null;
}
if (this.mouseEnterListener) {
this.mouseEnterListener();
this.mouseEnterListener = null;
}
if (this.xBarMouseDownListener) {
this.xBarMouseDownListener();
this.xBarMouseDownListener = null;
}
if (this.yBarMouseDownListener) {
this.yBarMouseDownListener();
this.yBarMouseDownListener = null;
}
}
ngOnDestroy() {
if (this.initialized) {
this.unbindListeners();
}
}
/**
* Refreshes the position and size of the scrollbar.
* @group Method
*/
refresh() {
this.moveBar();
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.2", ngImport: i0, type: ScrollPanel, deps: [{ token: PLATFORM_ID }, { token: i0.ElementRef }, { token: i0.NgZone }, { token: i0.ChangeDetectorRef }, { token: DOCUMENT }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Component });
static ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "16.0.2", type: ScrollPanel, selector: "p-scrollPanel", inputs: { style: "style", styleClass: "styleClass" }, host: { classAttribute: "p-element" }, queries: [{ propertyName: "templates", predicate: PrimeTemplate }], viewQueries: [{ propertyName: "containerViewChild", first: true, predicate: ["container"], descendants: true }, { propertyName: "contentViewChild", first: true, predicate: ["content"], descendants: true }, { propertyName: "xBarViewChild", first: true, predicate: ["xBar"], descendants: true }, { propertyName: "yBarViewChild", first: true, predicate: ["yBar"], descendants: true }], ngImport: i0, template: `
<div #container [ngClass]="'p-scrollpanel p-component'" [ngStyle]="style" [class]="styleClass">
<div class="p-scrollpanel-wrapper">
<div #content class="p-scrollpanel-content">
<ng-content></ng-content>
<ng-container *ngTemplateOutlet="contentTemplate"></ng-container>
</div>
</div>
<div #xBar class="p-scrollpanel-bar p-scrollpanel-bar-x"></div>
<div #yBar class="p-scrollpanel-bar p-scrollpanel-bar-y"></div>
</div>
`, isInline: true, styles: [".p-scrollpanel-wrapper{overflow:hidden;width:100%;height:100%;position:relative;float:left}.p-scrollpanel-content{height:calc(100% + 18px);width:calc(100% + 18px);padding:0 18px 18px 0;position:relative;overflow:auto;box-sizing:border-box}.p-scrollpanel-bar{position:relative;background:#c1c1c1;border-radius:3px;cursor:pointer;opacity:0;transition:opacity .25s linear}.p-scrollpanel-bar-y{width:9px;top:0}.p-scrollpanel-bar-x{height:9px;bottom:0}.p-scrollpanel-hidden{visibility:hidden}.p-scrollpanel:hover .p-scrollpanel-bar,.p-scrollpanel:active .p-scrollpanel-bar{opacity:1}.p-scrollpanel-grabbed{-webkit-user-select:none;user-select:none}\n"], dependencies: [{ kind: "directive", type: i1.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { kind: "directive", type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "directive", type: i1.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.2", ngImport: i0, type: ScrollPanel, decorators: [{
type: Component,
args: [{ selector: 'p-scrollPanel', template: `
<div #container [ngClass]="'p-scrollpanel p-component'" [ngStyle]="style" [class]="styleClass">
<div class="p-scrollpanel-wrapper">
<div #content class="p-scrollpanel-content">
<ng-content></ng-content>
<ng-container *ngTemplateOutlet="contentTemplate"></ng-container>
</div>
</div>
<div #xBar class="p-scrollpanel-bar p-scrollpanel-bar-x"></div>
<div #yBar class="p-scrollpanel-bar p-scrollpanel-bar-y"></div>
</div>
`, changeDetection: ChangeDetectionStrategy.OnPush, encapsulation: ViewEncapsulation.None, host: {
class: 'p-element'
}, styles: [".p-scrollpanel-wrapper{overflow:hidden;width:100%;height:100%;position:relative;float:left}.p-scrollpanel-content{height:calc(100% + 18px);width:calc(100% + 18px);padding:0 18px 18px 0;position:relative;overflow:auto;box-sizing:border-box}.p-scrollpanel-bar{position:relative;background:#c1c1c1;border-radius:3px;cursor:pointer;opacity:0;transition:opacity .25s linear}.p-scrollpanel-bar-y{width:9px;top:0}.p-scrollpanel-bar-x{height:9px;bottom:0}.p-scrollpanel-hidden{visibility:hidden}.p-scrollpanel:hover .p-scrollpanel-bar,.p-scrollpanel:active .p-scrollpanel-bar{opacity:1}.p-scrollpanel-grabbed{-webkit-user-select:none;user-select:none}\n"] }]
}], ctorParameters: function () { return [{ type: undefined, decorators: [{
type: Inject,
args: [PLATFORM_ID]
}] }, { type: i0.ElementRef }, { type: i0.NgZone }, { type: i0.ChangeDetectorRef }, { type: Document, decorators: [{
type: Inject,
args: [DOCUMENT]
}] }, { type: i0.Renderer2 }]; }, propDecorators: { style: [{
type: Input
}], styleClass: [{
type: Input
}], containerViewChild: [{
type: ViewChild,
args: ['container']
}], contentViewChild: [{
type: ViewChild,
args: ['content']
}], xBarViewChild: [{
type: ViewChild,
args: ['xBar']
}], yBarViewChild: [{
type: ViewChild,
args: ['yBar']
}], templates: [{
type: ContentChildren,
args: [PrimeTemplate]
}] } });
class ScrollPanelModule {
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.2", ngImport: i0, type: ScrollPanelModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
static ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "16.0.2", ngImport: i0, type: ScrollPanelModule, declarations: [ScrollPanel], imports: [CommonModule], exports: [ScrollPanel] });
static ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "16.0.2", ngImport: i0, type: ScrollPanelModule, imports: [CommonModule] });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.2", ngImport: i0, type: ScrollPanelModule, decorators: [{
type: NgModule,
args: [{
imports: [CommonModule],
exports: [ScrollPanel],
declarations: [ScrollPanel]
}]
}] });
/**
* Generated bundle index. Do not edit.
*/
export { ScrollPanel, ScrollPanelModule };
//# sourceMappingURL=primeng-scrollpanel.mjs.map