loke/ng2-fittext
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Avoid rerendering #13

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nischi merged 3 commits from master into master 2017-08-24 07:42:42 +00:00
Conversation 1 Commits 3 Files changed 1 +10 -3
1 changed files with 10 additions and 3 deletions
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src/ng2fittext.directive.ts
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@ -15,6 +15,7 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit, OnChanges, Af
private maxFontSize: number = 1000;
private fontSize: number = 0;
private speed: number = 1.05;
private done: boolean = false;
constructor(public el: ElementRef, public renderer: Renderer) {
}
@ -43,6 +44,7 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit, OnChanges, Af
@HostListener('window:resize', ['$event'])
onResize() {
this.done = false;
if (this.activateOnResize && this.fittext) {
if (this.activateOnInputEvents && this.fittext) {
this.setFontSize(this.container ? this.container.clientHeight : this.el.nativeElement.parentElement.clientHeight);
@ -56,6 +58,7 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit, OnChanges, Af
@HostListener('input', ['$event'])
onInputEvents() {
this.done = false;
if (this.activateOnInputEvents && this.fittext) {
this.setFontSize(this.container ? this.container.clientHeight : this.el.nativeElement.parentElement.clientHeight);
this.ngAfterViewInit();
@ -75,7 +78,7 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit, OnChanges, Af
}
ngAfterViewInit() {
if (this.fittext) {
if (this.fittext && this.done === false) {
let overflow = this.container ? this.checkOverflow(this.container, this.el.nativeElement)
: this.checkOverflow(this.el.nativeElement.parentElement, this.el.nativeElement);
if (overflow) {
@ -91,6 +94,7 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit, OnChanges, Af
this.setFontSize(this.maxFontSize);
}
}
this.done = true;
}
}
}
@ -104,8 +108,11 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit, OnChanges, Af
ngAfterViewChecked() {
if (this.fontSize > this.minFontSize) {
const fontSize = this.container ? this.container.clientHeight : this.el.nativeElement.parentElement.clientHeight;
if (fontSize > 0 && this.done === false) {
this.setFontSize(this.container ? this.container.clientHeight : this.el.nativeElement.parentElement.clientHeight);
this.ngAfterViewInit();
}
}
}
}