angular-fixed-header-table
Version:
angular-Fixed-Header-table is A simple solution for fixed header in any table.
221 lines (220 loc) • 30.2 kB
JavaScript
import { Directive, Input } from '@angular/core';
import * as i0 from "@angular/core";
/*
- in constactor, to detect change with RouteReuseStrategy
- then add in subscribe pageUpdated
private router: Router
router.events.subscribe((evt) => {
if (!(evt instanceof NavigationEnd)) {
return;
}
this.pageUpdated = !this.pageUpdated;
});
*/
export class BassFixedHeaderDirective {
constructor(el, renderer) {
this.el = el;
this.renderer = renderer;
this.stopFixed = false;
this.theadPaddingTopBottom = '0.45rem';
this.theadPaddingLeftRight = '1rem';
this.onBodyscroll = (e) => {
this.scroll();
};
}
ngOnInit() {
if (!this.stopFixed) {
setTimeout(() => {
this.inIt();
}, 1000);
}
}
ngOnChanges(changes) {
if (this.z2table && !this.stopFixed) {
setTimeout(() => {
this.changes(changes);
}, 1000);
}
}
ngOnDestroy() {
if (!this.stopFixed) {
this.removeTheadToFixedItems();
window.removeEventListener('scroll', this.onBodyscroll, true);
}
}
inIt() {
this.z2tableinit();
// get event on body/window scroll
window.addEventListener('scroll', this.onBodyscroll, true);
// called 2 times because the wired behavie of table wjen style attr added to Element
this.checkPaddingAndTHSize();
this.checkPaddingAndTHSize();
this.scroll();
}
changes(changes) {
if (changes.pageDestored) {
this.removeTheadToFixedItems();
this.scroll();
}
else {
this.checkPaddingAndTHSize();
this.scroll();
}
}
checkPaddingAndTHSize() {
const scrollFound = this.containerHasHorizontalScrollbar();
if (!scrollFound) {
// no scroll,,, small caoumns
setTimeout(() => {
this.changeThSizes();
}, 500);
this.z2table.style.tableLayout = 'fixed';
}
else {
// tslint:disable-next-line:prefer-for-of
for (let index = 0; index < this.z2tableTHeadTr.children.length; index++) {
const oldTh = this.z2tableTHeadTr.children[index];
oldTh.removeAttribute('style');
}
}
}
containerHasHorizontalScrollbar() {
const hasHorizontalScrollbar = this.el.nativeElement.scrollWidth > this.el.nativeElement.clientWidth;
if (hasHorizontalScrollbar === false) {
return false;
}
else {
return true;
}
}
z2tableinit() {
this.z2table = document.querySelector('#' + this.tableId);
this.z2tableTHead = document.querySelector('#' + this.tableTHeadId);
this.z2tableTHeadTr = document.querySelector('#' + this.tableTHeadTrId);
this.z2tableTBody = document.querySelector('#' + this.tableTBodyId);
if (!this.z2table) {
console.log('loooook table id not found..........');
}
else {
this.z2table.style.tableLayout = 'fixed';
this.z2table.style.width = 'max-content';
}
if (!this.z2tableTHead) {
console.log('loooook table thead id not found..........');
}
if (!this.z2tableTHeadTr) {
console.log('loooook table thead tr not found..........');
}
}
scroll() {
// tthis check because of tabs cache
const table = document.querySelector('#' + this.tableId);
if (this.z2table && table) {
const bounding = this.z2table.getBoundingClientRect();
const tableOffsetTop = this.z2table.offsetTop;
const windowOffset = window.pageYOffset;
const tHeadHeight = this.z2tableTHead.clientHeight;
const pos2 = document.documentElement.scrollTop;
if (this.z2tableTHead) {
// page at end
// console.log('nnn', (window.innerHeight + window.scrollY) >= document.body.offsetHeight);
if ((windowOffset + tHeadHeight) > (tableOffsetTop)) {
if ((window.scrollY) > (tableOffsetTop)) {
this.z2tableTHead.classList.add('z2TblScroll');
this.addTheadToFixedItems();
}
}
else {
this.z2tableTHead.classList.remove('z2TblScroll');
this.removeTheadToFixedItems();
}
}
}
}
changeThSizes() {
if (this.z2tableTBody && this.z2tableTBody.children && this.z2tableTBody.children.length >= 1) {
// tslint:disable-next-line:prefer-for-of
for (let index = 0; index < this.z2tableTHeadTr.children.length; index++) {
const oldTd = this.z2tableTBody.children[0].children[index];
const oldTh = this.z2tableTHeadTr.children[index];
if (!oldTh.hasAttribute('hidden')) {
let orPadding = 0; // beacause border-right
const elStyles = window.getComputedStyle(oldTh);
orPadding = orPadding
+ Number(elStyles.paddingLeft.replace('px', ''))
+ Number(elStyles.paddingRight.replace('px', ''))
+ Number(elStyles.marginLeft.replace('px', ''))
+ Number(elStyles.marginRight.replace('px', ''));
if (oldTd && oldTd.clientWidth) {
const newWeidth = oldTd.clientWidth - orPadding;
if (newWeidth !== 0) {
const styles = 'min-width: ' + newWeidth + 'px !important;';
oldTh.setAttribute('style', styles);
}
}
}
}
}
}
addTheadToFixedItems() {
const fixedItems = document.getElementById('fixedItems');
const fixedItemsStyle = 'height:0px;display: block;';
fixedItems?.setAttribute('style', fixedItemsStyle);
const itemsEl = fixedItems?.querySelector('#' + this.tableId);
if (!itemsEl) {
const containerDiv = this.renderer.createElement('div');
containerDiv.id = this.tableId;
containerDiv.classList.add('z2table-container');
const containerDivStyle = 'width: ' + this.el.nativeElement.clientWidth + 'px';
containerDiv.setAttribute('style', containerDivStyle);
const tableDiv = this.renderer.createElement('div');
const tableDivStyle = 'width: inherit';
tableDiv.setAttribute('style', tableDivStyle);
this.renderer.appendChild(tableDiv, this.z2tableTHead);
this.renderer.appendChild(containerDiv, tableDiv);
this.renderer.appendChild(fixedItems, containerDiv);
this.z2tableTHead.scrollLeft = this.el.nativeElement.scrollLeft;
}
else {
const containerDiv = itemsEl;
containerDiv.style.display = 'block';
this.renderer.appendChild(containerDiv.lastChild, this.z2tableTHead);
this.z2tableTHead.scrollLeft = this.el.nativeElement.scrollLeft;
}
}
removeTheadToFixedItems() {
const fixedItems = document.getElementById('fixedItems');
if (fixedItems && fixedItems.firstChild) {
this.renderer.appendChild(this.z2table, this.z2tableTHead);
// tslint:disable-next-line:prefer-for-of
for (let index = 0; index < fixedItems.children.length; index++) {
const element = fixedItems.children[index];
element.remove();
}
fixedItems.setAttribute('style', 'display: none;overflow:hidden !important');
}
}
}
BassFixedHeaderDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.0.3", ngImport: i0, type: BassFixedHeaderDirective, deps: [{ token: i0.ElementRef }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive });
BassFixedHeaderDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "12.0.0", version: "13.0.3", type: BassFixedHeaderDirective, selector: "[bassFixedHeader]", inputs: { tableId: "tableId", tableTHeadId: "tableTHeadId", tableTBodyId: "tableTBodyId", tableTHeadTrId: "tableTHeadTrId", pageUpdated: "pageUpdated", pageDestored: "pageDestored", stopFixed: "stopFixed" }, usesOnChanges: true, ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.0.3", ngImport: i0, type: BassFixedHeaderDirective, decorators: [{
type: Directive,
args: [{
selector: '[bassFixedHeader]'
}]
}], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.Renderer2 }]; }, propDecorators: { tableId: [{
type: Input
}], tableTHeadId: [{
type: Input
}], tableTBodyId: [{
type: Input
}], tableTHeadTrId: [{
type: Input
}], pageUpdated: [{
type: Input
}], pageDestored: [{
type: Input
}], stopFixed: [{
type: Input
}] } });
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{\r\n  Directive,\r\n  Input,\r\n  ElementRef,\r\n  Renderer2,\r\n  OnInit,\r\n  OnDestroy,\r\n  OnChanges,\r\n  SimpleChanges } from '@angular/core';\r\n\r\n@Directive({\r\n  selector: '[bassFixedHeader]'\r\n})\r\n/*\r\n- in constactor, to detect change with RouteReuseStrategy\r\n- then add in subscribe pageUpdated\r\n\r\nprivate router: Router\r\nrouter.events.subscribe((evt) => {\r\n  if (!(evt instanceof NavigationEnd)) {\r\n      return;\r\n  }\r\n  this.pageUpdated = !this.pageUpdated;\r\n});\r\n*/\r\nexport class BassFixedHeaderDirective implements OnInit, OnDestroy, OnChanges {\r\n  @Input() tableId: string;\r\n  @Input() tableTHeadId: string;\r\n  @Input() tableTBodyId: string;\r\n  @Input() tableTHeadTrId: string;\r\n  @Input() pageUpdated: boolean; // fire to resize scroll ues (pageUpdated = !pageUpdated)\r\n  @Input() pageDestored: boolean; // fire to remove header when tab change => (\"with cache\")\r\n  @Input() stopFixed: boolean = false;\r\n\r\n  z2table: HTMLElement;\r\n  z2tableTHeadTr: HTMLElement;\r\n  z2tableTHead: HTMLElement;\r\n  z2tableTBody: HTMLElement;\r\n\r\n  theadPaddingTopBottom = '0.45rem';\r\n  theadPaddingLeftRight = '1rem';\r\n\r\n  constructor(private el: ElementRef, private renderer: Renderer2) { }\r\n\r\n  ngOnInit() {\r\n    if (!this.stopFixed) {\r\n      setTimeout(() => {\r\n          this.inIt();\r\n      }, 1000);\r\n    }\r\n  }\r\n\r\n  ngOnChanges(changes: SimpleChanges) {\r\n    if (this.z2table && !this.stopFixed) {\r\n      setTimeout(() => {\r\n        this.changes(changes);\r\n      }, 1000);\r\n    }\r\n  }\r\n\r\n\r\n  ngOnDestroy() {\r\n    if (!this.stopFixed) {\r\n      this.removeTheadToFixedItems();\r\n      window.removeEventListener('scroll', this.onBodyscroll, true);\r\n    }\r\n  }\r\n\r\n  inIt() {\r\n\r\n    this.z2tableinit();\r\n\r\n    // get event on body/window scroll\r\n    window.addEventListener('scroll', this.onBodyscroll, true);\r\n\r\n    // called 2 times because the wired behavie of table wjen style attr added to Element\r\n    this.checkPaddingAndTHSize();\r\n    this.checkPaddingAndTHSize();\r\n    this.scroll();\r\n  }\r\n\r\n  changes(changes: any) {\r\n    if (changes.pageDestored) {\r\n      this.removeTheadToFixedItems();\r\n      this.scroll();\r\n    } else {\r\n      this.checkPaddingAndTHSize();\r\n      this.scroll();\r\n    }\r\n  }\r\n\r\n  checkPaddingAndTHSize() {\r\n    const scrollFound = this.containerHasHorizontalScrollbar();\r\n    if (!scrollFound) {\r\n      // no scroll,,, small caoumns\r\n      setTimeout(() => {\r\n        this.changeThSizes();\r\n      }, 500);\r\n      this.z2table.style.tableLayout = 'fixed';\r\n    } else {\r\n    \r\n        // tslint:disable-next-line:prefer-for-of\r\n        for (let index = 0; index < this.z2tableTHeadTr.children.length; index++) {\r\n          const oldTh = this.z2tableTHeadTr.children[index] as HTMLElement;\r\n          oldTh.removeAttribute('style');\r\n        }\r\n    }\r\n  }\r\n\r\n  containerHasHorizontalScrollbar(): boolean {\r\n    const hasHorizontalScrollbar = this.el.nativeElement.scrollWidth > this.el.nativeElement.clientWidth;\r\n    if (hasHorizontalScrollbar === false) {\r\n      return false;\r\n    } else {\r\n      return true;\r\n    }\r\n  }\r\n\r\n  z2tableinit() {\r\n    this.z2table = document.querySelector('#' + this.tableId) as HTMLElement;\r\n    this.z2tableTHead = document.querySelector('#' + this.tableTHeadId) as HTMLElement;\r\n    this.z2tableTHeadTr = document.querySelector('#' + this.tableTHeadTrId) as HTMLElement;\r\n    this.z2tableTBody = document.querySelector('#' + this.tableTBodyId) as HTMLElement;\r\n\r\n    if (!this.z2table) {\r\n      console.log('loooook table id not found..........');\r\n    } else {\r\n      this.z2table.style.tableLayout = 'fixed';\r\n      this.z2table.style.width = 'max-content';\r\n    }\r\n    \r\n    if (!this.z2tableTHead) {\r\n      console.log('loooook table thead id not found..........');\r\n    }\r\n    if (!this.z2tableTHeadTr) {\r\n      console.log('loooook table thead tr not found..........');\r\n    }\r\n  }\r\n\r\n  onBodyscroll = (e: any): void => {\r\n    this.scroll();\r\n  }\r\n\r\n  scroll() {\r\n    // tthis check because of tabs cache\r\n    const table = document.querySelector('#' + this.tableId);\r\n    if (this.z2table && table) {\r\n\r\n      const bounding = this.z2table.getBoundingClientRect();\r\n      const tableOffsetTop = this.z2table.offsetTop;\r\n      const windowOffset = window.pageYOffset;\r\n      const tHeadHeight = this.z2tableTHead.clientHeight;\r\n      const pos2 = document.documentElement.scrollTop;\r\n\r\n      if (this.z2tableTHead) {\r\n\r\n        // page at end\r\n        // console.log('nnn', (window.innerHeight + window.scrollY) >= document.body.offsetHeight);\r\n\r\n        if ((windowOffset + tHeadHeight) > ( tableOffsetTop )) {\r\n          if ((window.scrollY) > ( tableOffsetTop )) {\r\n              this.z2tableTHead.classList.add('z2TblScroll');\r\n              this.addTheadToFixedItems();\r\n          }\r\n        } else {\r\n          this.z2tableTHead.classList.remove('z2TblScroll');\r\n          this.removeTheadToFixedItems();\r\n        }\r\n      }\r\n    }\r\n  }\r\n\r\n  changeThSizes() {\r\n      if (this.z2tableTBody && this.z2tableTBody.children && this.z2tableTBody.children.length >= 1) {\r\n        // tslint:disable-next-line:prefer-for-of\r\n        for (let index = 0; index < this.z2tableTHeadTr.children.length; index++) {\r\n          const oldTd = this.z2tableTBody.children[0].children[index] as HTMLElement;\r\n          const oldTh = this.z2tableTHeadTr.children[index] as HTMLElement;\r\n          if (!oldTh.hasAttribute('hidden')) {\r\n\r\n            let orPadding = 0; // beacause border-right\r\n            const elStyles = window.getComputedStyle(oldTh);\r\n            orPadding = orPadding\r\n            + Number(elStyles.paddingLeft.replace('px', ''))\r\n            + Number(elStyles.paddingRight.replace('px', ''))\r\n            + Number(elStyles.marginLeft.replace('px', ''))\r\n            + Number(elStyles.marginRight.replace('px', ''));\r\n\r\n            if (oldTd && oldTd.clientWidth) {\r\n              const newWeidth = oldTd.clientWidth  - orPadding;\r\n              if (newWeidth !== 0) {\r\n                const styles = 'min-width: ' + newWeidth + 'px !important;';\r\n                oldTh.setAttribute('style', styles);\r\n              }\r\n            }\r\n\r\n          }\r\n        }\r\n    }\r\n  }\r\n\r\n  addTheadToFixedItems() {\r\n    const fixedItems = document.getElementById('fixedItems');\r\n    const fixedItemsStyle = 'height:0px;display: block;';\r\n    fixedItems?.setAttribute('style', fixedItemsStyle);\r\n\r\n    const itemsEl = fixedItems?.querySelector('#' + this.tableId);\r\n    if (!itemsEl) {\r\n\r\n      const containerDiv = this.renderer.createElement('div') as HTMLElement;\r\n      containerDiv.id =  this.tableId;\r\n      containerDiv.classList.add('z2table-container');\r\n      const containerDivStyle =  'width: ' + this.el.nativeElement.clientWidth + 'px';\r\n      containerDiv.setAttribute('style', containerDivStyle);\r\n\r\n      const tableDiv = this.renderer.createElement('div') as HTMLElement;\r\n\r\n      const tableDivStyle =  'width: inherit';\r\n      tableDiv.setAttribute('style', tableDivStyle);\r\n\r\n      this.renderer.appendChild(tableDiv, this.z2tableTHead);\r\n      this.renderer.appendChild(containerDiv, tableDiv);\r\n      this.renderer.appendChild(fixedItems, containerDiv);\r\n\r\n      this.z2tableTHead.scrollLeft = this.el.nativeElement.scrollLeft;\r\n\r\n     } else {\r\n      const containerDiv = itemsEl;\r\n      (containerDiv as HTMLElement).style.display = 'block';\r\n      this.renderer.appendChild(containerDiv.lastChild, this.z2tableTHead);\r\n\r\n      this.z2tableTHead.scrollLeft = this.el.nativeElement.scrollLeft;\r\n     }\r\n\r\n  }\r\n\r\n  removeTheadToFixedItems() {\r\n    const fixedItems = document.getElementById('fixedItems');\r\n    if (fixedItems && fixedItems.firstChild) {\r\n\r\n      this.renderer.appendChild(this.z2table, this.z2tableTHead);\r\n\r\n      // tslint:disable-next-line:prefer-for-of\r\n      for (let index = 0; index < fixedItems.children.length; index++) {\r\n        const element = fixedItems.children[index];\r\n        element.remove();\r\n      }\r\n\r\n      fixedItems.setAttribute('style', 'display: none;overflow:hidden !important');\r\n    }\r\n  }\r\n\r\n}\r\n\r\n"]}