An Angular2 directive written in pure typescript (and without jquery!), to autoscale the font size of an element so that it fits an upper level container.

http://plnkr.co/edit/v0TQaYepV4E2Heur02j5?p=preview

Install the library

$ npm install --save ng2-fittext

1. Declare it in your module

   import {Ng2FittextModule} from "ng2-fittext";
   @NgModule({
     imports: [
       Ng2FittextModule
     ]
   })

2. Use it in your components

   import {Component} from '@angular/core';
   @Component({
     selector: 'label',
     template: `<div #container>
                   <div [fittext]="true" [activateOnResize]="true" [container]="container">Bla bla bla...</div>
               </div>`
   })
   export class LabelComponent {}

Fit to the parent element (this works if you have a variable number of elements between your element and its parent)

import {Component} from '@angular/core';
@Component({
  selector: 'label',
  template: `<div>
                <div [fittext]="true" [activateOnResize]="true">Bla bla bla...</div>
            </div>`
})
export class LabelComponent {}

NEW! Support for autoresize input box!

import {Component} from '@angular/core';
@Component({
  selector: 'inputbox',
  template: `<div #container>
                <input [fittext]="true" [activateOnResize]="true" [container]="container" [activateOnInputEvents]="true">`,
            </div>`
})

export class InputBoxComponent {}

NEW! Support for maxFontSize!

import {Component} from '@angular/core';
@Component({
  selector: 'inputbox',
  template: `<div>
                <input [fittext]="true" [activateOnResize]="true" [activateOnInputEvents]="true" [minFontSize]="40" [maxFontSize]="100">`,
            </div>`
})
export class InputBoxComponent {}

Input Parameters:

Output Parameters:

Want to contribute? Great! Simply, clone the repository!

I created this library because I always spent too much time to solve this problem and didn't find anything on the web (13/03/2017) that does this without jquery and that is also easily integrable in angular2. For sure it is not the best implementation, maybe is not the best way to do it, but, it gets the job done.

• Write tests
• Find a better algorithm to find the font-size who fits better the container

MIT

Lorenzo I.