ngx-ellipsis-tool
Version:
Angular directive that automatically detects when text is truncated with ellipsis (...) and shows a tooltip with the full text — only when needed!
111 lines • 12.8 kB
JavaScript
import { Directive, Input, HostListener, ApplicationRef, EnvironmentInjector, inject, DestroyRef, createComponent } from '@angular/core';
import { TooltipComponent } from './custom-tooltip/custom-tooltip.component';
import * as i0 from "@angular/core";
export class NgxEllipsisTooltipDirective {
constructor(el) {
this.el = el;
this.placement = 'top';
this.delay = 300;
this.tooltipClass = '';
this.appRef = inject(ApplicationRef);
this.envInjector = inject(EnvironmentInjector);
this.destroyRef = inject(DestroyRef);
this.destroyRef.onDestroy(() => this.hideTooltip());
}
onMouseEnter() {
this.scheduleShowTooltip();
}
onMouseLeave() {
this.cancelShow();
this.hideTooltip();
}
onClick() {
// For mobile → show immediately on click
this.cancelShow();
this.tryShowTooltip();
}
onDocumentClick(event) {
if (this.tooltipRef && !this.el.nativeElement.contains(event.target)) {
this.hideTooltip();
}
}
scheduleShowTooltip() {
this.cancelShow();
this.showTimeoutId = setTimeout(() => {
this.tryShowTooltip();
}, this.delay);
}
cancelShow() {
if (this.showTimeoutId) {
clearTimeout(this.showTimeoutId);
this.showTimeoutId = null;
}
}
tryShowTooltip() {
if (this.isTruncated()) {
const text = this.tooltipText || this.el.nativeElement.textContent?.trim() || '';
const rect = this.el.nativeElement.getBoundingClientRect();
let top = rect.top + window.scrollY;
let left = rect.left + window.scrollX;
const elHeight = rect.height;
if (this.placement === 'top') {
top -= 8;
}
else {
top += elHeight + 8;
}
this.showTooltip(text, left, top);
}
}
isTruncated() {
const el = this.el.nativeElement;
return el.scrollWidth > el.clientWidth || el.scrollHeight > el.clientHeight;
}
showTooltip(text, left, top) {
this.hideTooltip();
this.tooltipRef = createComponent(TooltipComponent, {
environmentInjector: this.envInjector,
hostElement: document.body
});
this.tooltipRef.instance.text = text;
this.tooltipRef.instance.left = left;
this.tooltipRef.instance.top = top;
this.tooltipRef.instance.customClass = this.tooltipClass;
}
hideTooltip() {
if (this.tooltipRef) {
this.tooltipRef.destroy();
this.tooltipRef = undefined;
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: NgxEllipsisTooltipDirective, deps: [{ token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "17.3.12", type: NgxEllipsisTooltipDirective, isStandalone: true, selector: "[ngxEllipsisTooltip]", inputs: { tooltipText: "tooltipText", placement: "placement", delay: "delay", tooltipClass: "tooltipClass" }, host: { listeners: { "mouseenter": "onMouseEnter()", "mouseleave": "onMouseLeave()", "click": "onClick()", "document:click": "onDocumentClick($event)" } }, ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: NgxEllipsisTooltipDirective, decorators: [{
type: Directive,
args: [{
selector: '[ngxEllipsisTooltip]',
standalone: true
}]
}], ctorParameters: () => [{ type: i0.ElementRef }], propDecorators: { tooltipText: [{
type: Input
}], placement: [{
type: Input
}], delay: [{
type: Input
}], tooltipClass: [{
type: Input
}], onMouseEnter: [{
type: HostListener,
args: ['mouseenter']
}], onMouseLeave: [{
type: HostListener,
args: ['mouseleave']
}], onClick: [{
type: HostListener,
args: ['click']
}], onDocumentClick: [{
type: HostListener,
args: ['document:click', ['$event']]
}] } });
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"ngx-ellipsis-tool.directive.js","sourceRoot":"","sources":["../../../../projects/ngx-ellipsis-tool/src/lib/ngx-ellipsis-tool.directive.ts"],"names":[],"mappings":"AAAA,OAAO,EACL,SAAS,EAET,KAAK,EACL,YAAY,EAEZ,cAAc,EACd,mBAAmB,EACnB,MAAM,EACN,UAAU,EACV,eAAe,EAChB,MAAM,eAAe,CAAC;AACvB,OAAO,EAAE,gBAAgB,EAAE,MAAM,2CAA2C,CAAC;;AAM7E,MAAM,OAAO,2BAA2B;IAatC,YAAoB,EAA2B;QAA3B,OAAE,GAAF,EAAE,CAAyB;QAXtC,cAAS,GAAqB,KAAK,CAAC;QACpC,UAAK,GAAG,GAAG,CAAC;QACZ,iBAAY,GAAG,EAAE,CAAC;QAGnB,WAAM,GAAG,MAAM,CAAC,cAAc,CAAC,CAAC;QAChC,gBAAW,GAAG,MAAM,CAAC,mBAAmB,CAAC,CAAC;QAC1C,eAAU,GAAG,MAAM,CAAC,UAAU,CAAC,CAAC;QAKtC,IAAI,CAAC,UAAU,CAAC,SAAS,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,WAAW,EAAE,CAAC,CAAC;IACtD,CAAC;IAGD,YAAY;QACV,IAAI,CAAC,mBAAmB,EAAE,CAAC;IAC7B,CAAC;IAGD,YAAY;QACV,IAAI,CAAC,UAAU,EAAE,CAAC;QAClB,IAAI,CAAC,WAAW,EAAE,CAAC;IACrB,CAAC;IAGD,OAAO;QACL,yCAAyC;QACzC,IAAI,CAAC,UAAU,EAAE,CAAC;QAClB,IAAI,CAAC,cAAc,EAAE,CAAC;IACxB,CAAC;IAGD,eAAe,CAAC,KAAiB;QAC/B,IAAI,IAAI,CAAC,UAAU,IAAI,CAAC,IAAI,CAAC,EAAE,CAAC,aAAa,CAAC,QAAQ,CAAC,KAAK,CAAC,MAAc,CAAC,EAAE,CAAC;YAC7E,IAAI,CAAC,WAAW,EAAE,CAAC;QACrB,CAAC;IACH,CAAC;IAEO,mBAAmB;QACzB,IAAI,CAAC,UAAU,EAAE,CAAC;QAClB,IAAI,CAAC,aAAa,GAAG,UAAU,CAAC,GAAG,EAAE;YACnC,IAAI,CAAC,cAAc,EAAE,CAAC;QACxB,CAAC,EAAE,IAAI,CAAC,KAAK,CAAC,CAAC;IACjB,CAAC;IAEO,UAAU;QAChB,IAAI,IAAI,CAAC,aAAa,EAAE,CAAC;YACvB,YAAY,CAAC,IAAI,CAAC,aAAa,CAAC,CAAC;YACjC,IAAI,CAAC,aAAa,GAAG,IAAI,CAAC;QAC5B,CAAC;IACH,CAAC;IAEO,cAAc;QACpB,IAAI,IAAI,CAAC,WAAW,EAAE,EAAE,CAAC;YACvB,MAAM,IAAI,GAAG,IAAI,CAAC,WAAW,IAAI,IAAI,CAAC,EAAE,CAAC,aAAa,CAAC,WAAW,EAAE,IAAI,EAAE,IAAI,EAAE,CAAC;YACjF,MAAM,IAAI,GAAG,IAAI,CAAC,EAAE,CAAC,aAAa,CAAC,qBAAqB,EAAE,CAAC;YAE3D,IAAI,GAAG,GAAG,IAAI,CAAC,GAAG,GAAG,MAAM,CAAC,OAAO,CAAC;YACpC,IAAI,IAAI,GAAG,IAAI,CAAC,IAAI,GAAG,MAAM,CAAC,OAAO,CAAC;YACtC,MAAM,QAAQ,GAAG,IAAI,CAAC,MAAM,CAAC;YAE7B,IAAI,IAAI,CAAC,SAAS,KAAK,KAAK,EAAE,CAAC;gBAC7B,GAAG,IAAI,CAAC,CAAC;YACX,CAAC;iBAAM,CAAC;gBACN,GAAG,IAAI,QAAQ,GAAG,CAAC,CAAC;YACtB,CAAC;YAED,IAAI,CAAC,WAAW,CAAC,IAAI,EAAE,IAAI,EAAE,GAAG,CAAC,CAAC;QACpC,CAAC;IACH,CAAC;IAEO,WAAW;QACjB,MAAM,EAAE,GAAG,IAAI,CAAC,EAAE,CAAC,aAAa,CAAC;QACjC,OAAO,EAAE,CAAC,WAAW,GAAG,EAAE,CAAC,WAAW,IAAI,EAAE,CAAC,YAAY,GAAG,EAAE,CAAC,YAAY,CAAC;IAC9E,CAAC;IAEO,WAAW,CAAC,IAAY,EAAE,IAAY,EAAE,GAAW;QACzD,IAAI,CAAC,WAAW,EAAE,CAAC;QAEnB,IAAI,CAAC,UAAU,GAAG,eAAe,CAAC,gBAAgB,EAAE;YAClD,mBAAmB,EAAE,IAAI,CAAC,WAAW;YACrC,WAAW,EAAE,QAAQ,CAAC,IAAI;SAC3B,CAAC,CAAC;QACH,IAAI,CAAC,UAAU,CAAC,QAAQ,CAAC,IAAI,GAAG,IAAI,CAAC;QACrC,IAAI,CAAC,UAAU,CAAC,QAAQ,CAAC,IAAI,GAAG,IAAI,CAAC;QACrC,IAAI,CAAC,UAAU,CAAC,QAAQ,CAAC,GAAG,GAAG,GAAG,CAAC;QACnC,IAAI,CAAC,UAAU,CAAC,QAAQ,CAAC,WAAW,GAAG,IAAI,CAAC,YAAY,CAAC;IAC3D,CAAC;IAGO,WAAW;QACjB,IAAI,IAAI,CAAC,UAAU,EAAE,CAAC;YACpB,IAAI,CAAC,UAAU,CAAC,OAAO,EAAE,CAAC;YAC1B,IAAI,CAAC,UAAU,GAAG,SAAS,CAAC;QAC9B,CAAC;IACH,CAAC;+GAnGU,2BAA2B;mGAA3B,2BAA2B;;4FAA3B,2BAA2B;kBAJvC,SAAS;mBAAC;oBACT,QAAQ,EAAE,sBAAsB;oBAChC,UAAU,EAAE,IAAI;iBACjB;+EAEU,WAAW;sBAAnB,KAAK;gBACG,SAAS;sBAAjB,KAAK;gBACG,KAAK;sBAAb,KAAK;gBACG,YAAY;sBAApB,KAAK;gBAcN,YAAY;sBADX,YAAY;uBAAC,YAAY;gBAM1B,YAAY;sBADX,YAAY;uBAAC,YAAY;gBAO1B,OAAO;sBADN,YAAY;uBAAC,OAAO;gBAQrB,eAAe;sBADd,YAAY;uBAAC,gBAAgB,EAAE,CAAC,QAAQ,CAAC","sourcesContent":["import {\n  Directive,\n  ElementRef,\n  Input,\n  HostListener,\n  ComponentRef,\n  ApplicationRef,\n  EnvironmentInjector,\n  inject,\n  DestroyRef,\n  createComponent\n} from '@angular/core'; \nimport { TooltipComponent } from './custom-tooltip/custom-tooltip.component';\n\n@Directive({\n  selector: '[ngxEllipsisTooltip]',\n  standalone: true\n})\nexport class NgxEllipsisTooltipDirective {\n  @Input() tooltipText?: string;\n  @Input() placement: 'top' | 'bottom' = 'top';\n  @Input() delay = 300;\n  @Input() tooltipClass = '';\n\n  private tooltipRef?: ComponentRef<TooltipComponent>;\n  private appRef = inject(ApplicationRef);\n  private envInjector = inject(EnvironmentInjector);\n  private destroyRef = inject(DestroyRef);\n\n  private showTimeoutId: any;\n\n  constructor(private el: ElementRef<HTMLElement>) {\n    this.destroyRef.onDestroy(() => this.hideTooltip());\n  }\n\n  @HostListener('mouseenter')\n  onMouseEnter() {\n    this.scheduleShowTooltip();\n  }\n\n  @HostListener('mouseleave')\n  onMouseLeave() {\n    this.cancelShow();\n    this.hideTooltip();\n  }\n\n  @HostListener('click')\n  onClick() {\n    // For mobile → show immediately on click\n    this.cancelShow();\n    this.tryShowTooltip();\n  }\n\n  @HostListener('document:click', ['$event'])\n  onDocumentClick(event: MouseEvent) {\n    if (this.tooltipRef && !this.el.nativeElement.contains(event.target as Node)) {\n      this.hideTooltip();\n    }\n  }\n\n  private scheduleShowTooltip() {\n    this.cancelShow();\n    this.showTimeoutId = setTimeout(() => {\n      this.tryShowTooltip();\n    }, this.delay);\n  }\n\n  private cancelShow() {\n    if (this.showTimeoutId) {\n      clearTimeout(this.showTimeoutId);\n      this.showTimeoutId = null;\n    }\n  }\n\n  private tryShowTooltip() {\n    if (this.isTruncated()) {\n      const text = this.tooltipText || this.el.nativeElement.textContent?.trim() || '';\n      const rect = this.el.nativeElement.getBoundingClientRect();\n\n      let top = rect.top + window.scrollY;\n      let left = rect.left + window.scrollX;\n      const elHeight = rect.height;\n\n      if (this.placement === 'top') {\n        top -= 8;\n      } else {\n        top += elHeight + 8;\n      }\n\n      this.showTooltip(text, left, top);\n    }\n  }\n\n  private isTruncated(): boolean {\n    const el = this.el.nativeElement;\n    return el.scrollWidth > el.clientWidth || el.scrollHeight > el.clientHeight;\n  }\n\n  private showTooltip(text: string, left: number, top: number) {\n    this.hideTooltip();\n  \n    this.tooltipRef = createComponent(TooltipComponent, {\n      environmentInjector: this.envInjector,\n      hostElement: document.body\n    });\n    this.tooltipRef.instance.text = text;\n    this.tooltipRef.instance.left = left;\n    this.tooltipRef.instance.top = top;\n    this.tooltipRef.instance.customClass = this.tooltipClass;\n  }\n  \n\n  private hideTooltip() {\n    if (this.tooltipRef) {\n      this.tooltipRef.destroy();\n      this.tooltipRef = undefined;\n    }\n  }\n}\n"]}