Fix: Issues #14,#15,#19,#20. Ref: Deleted angular-librarian and added scripts in package.json to manage publishing; Version upgrade

examples/dev/src/app/app.component.html

@@ -0,0 +1,13 @@
+<div style="border: 2px solid; overflow:hidden; width:100%; height:300px; font-size:520px;">
+  <div [fittext]="true"
+       [modelToWatch]="title"
+       [activateOnResize]="true"
+       [useMaxFontSize]="true">{{title}}</div>
+</div>
+
+<button (click)="click('add')"> ADD text</button>
+<button (click)="click('remove')"> REMOVE text</button>
+
+<div #cont2 style="border: 2px solid; height:101px; width:20%;">
+  <input [fittext]="true" style="width:100%; height:100px" [activateOnResize]="true" [activateOnInputEvents]="true" [container]="cont2">
+</div>

examples/dev/src/app/app.component.ts

@@ -0,0 +1,15 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent {
+   title = 'sdf fsd fsd fsdfsdfsdfsdfsfdf sdfsdf sdfs df fsdfsdfsdfsdfsfdf fsdfsdfsdfsdfsfdf fsdfsdfsdfsdfsfdf ' +
+     'fsdfsdfsdfsdfsfdf fsdfsdfsdfsdfsfdf';
+
+  click(par: string) {
+    this.title = par === 'add' ? (this.title  + this.title) : (this.title.substring(0, this.title.length / 2 + 10));
+  }
+}

examples/dev/src/app/app.module.ts

@@ -0,0 +1,17 @@
+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+import { AppComponent } from './app.component';
+import {Ng2FittextDirective} from './ng2-fittext.directive';
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    Ng2FittextDirective
+  ],
+  imports: [
+    BrowserModule
+  ],
+  providers: [],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }

examples/dev/src/app/ng2-fittext.directive.ts

@@ -0,0 +1,155 @@
+import {
+  AfterViewChecked,
+  AfterViewInit,
+  Directive,
+  ElementRef, HostListener,
+  Input,
+  OnChanges,
+  OnInit,
+  Renderer2
+} from '@angular/core';
+
+@Directive({
+  selector: '[fittext]'
+})
+export class Ng2FittextDirective implements AfterViewInit, OnInit, OnChanges, AfterViewChecked {
+
+  @Input('fittext') fittext: any;
+  @Input('activateOnResize') activateOnResize: boolean;
+  @Input('container') container: HTMLElement;
+  @Input('activateOnInputEvents') activateOnInputEvents: boolean;
+  @Input('useMaxFontSize') useMaxFontSize: boolean;
+  @Input('minFontSize') minFontSize = 7;
+  @Input('modelToWatch') modelToWatch: any;
+  private maxFontSize = 1000;
+  private fontSize = 1000;
+  private speed = 1.05;
+  private done = false;
+
+  constructor(public el: ElementRef,
+              public renderer: Renderer2) {}
+
+  setFontSize(fontSize: number) {
+    if (this.isVisible() && !this.done) {
+      if (fontSize < this.minFontSize) {
+        // force that font size will never be lower than minimal allowed font size
+        fontSize = this.minFontSize;
+      }
+
+      this.fontSize = fontSize;
+      return this.el.nativeElement.style.setProperty('font-size', (fontSize).toString() + 'px');
+    }
+  }
+
+  calculateFontSize(fontSize: number, speed: number) {
+    // TODO Do with Gauss
+    return Math.floor(fontSize / speed);
+  }
+
+  checkOverflow(parent: any, children: any) {
+    const overflowX = children.scrollWidth - parent.clientWidth;
+    const overflowY = children.clientHeight - parent.clientHeight;
+    return (overflowX > 1 || overflowY > 1);
+  }
+
+  @HostListener('window:resize', ['$event'])
+  onResize() {
+    this.done = false;
+    if (this.activateOnResize && this.fittext) {
+      if (this.activateOnInputEvents && this.fittext) {
+        this.setFontSize(this.getStartFontSizeFromHeight());
+      } else {
+        this.setFontSize(this.getStartFontSizeFromWeight());
+      }
+
+      this.ngAfterViewInit();
+    }
+  }
+
+  @HostListener('input', ['$event'])
+  onInputEvents() {
+    this.done = false;
+    if (this.activateOnInputEvents && this.fittext) {
+      this.setFontSize(this.getStartFontSizeFromHeight());
+      this.ngAfterViewInit();
+    }
+  }
+
+  ngOnInit() {
+    this.done = false;
+    if (this.useMaxFontSize) {
+      const fontSize = this.getComputetStyle().fontSize;
+      if (fontSize) {
+        this.maxFontSize = parseInt(fontSize, undefined);
+      }
+    }
+
+    if (this.fittext) {
+      this.setFontSize(this.maxFontSize);
+    }
+
+    this.el.nativeElement.style.setProperty('will-change', 'content');
+    this.ngAfterViewInit();
+  }
+
+  ngAfterViewInit() {
+    if (this.isVisible() && !this.done) {
+      if (this.fittext) {
+        const overflow = this.container ? this.checkOverflow(this.container, this.el.nativeElement)
+          : this.checkOverflow(this.el.nativeElement.parentElement, this.el.nativeElement);
+        if (overflow) {
+          if (this.fontSize > this.minFontSize) {
+            // iterate only until font size is bigger than minimal value
+            this.setFontSize(this.calculateFontSize(this.fontSize, this.speed));
+            this.ngAfterViewInit();
+          }
+        } else {
+          if (this.useMaxFontSize) {
+            if (this.fontSize > this.maxFontSize) {
+              const fontSize = this.getComputetStyle().fontSize;
+              if (fontSize) {
+                this.maxFontSize = parseInt(fontSize, undefined);
+                this.setFontSize(this.maxFontSize);
+              }
+            }
+          }
+          this.done = true;
+        }
+      }
+    }
+  }
+
+  ngOnChanges(changes: any): void {
+    if (changes.modelToWatch) {
+      // change of model to watch - call ngAfterViewInit where is implemented logic to change size
+      setTimeout(() => {
+        this.done = false;
+        this.setFontSize(this.maxFontSize);
+        this.ngAfterViewInit();
+      });
+    }
+  }
+
+  ngAfterViewChecked() {
+    if (this.fontSize > this.minFontSize) {
+      this.setFontSize(this.getStartFontSizeFromHeight());
+      this.ngAfterViewInit();
+    }
+  }
+
+  private getComputetStyle(): CSSStyleDeclaration {
+    return window.getComputedStyle(this.container ? this.container : this.el.nativeElement.parentElement);
+  }
+
+  private getStartFontSizeFromHeight(): number {
+    return this.container ? this.container.clientHeight : this.el.nativeElement.parentElement.clientHeight;
+  }
+
+  private getStartFontSizeFromWeight(): number {
+    return this.container ? this.container.clientWidth : this.el.nativeElement.parentElement.clientWidth;
+  }
+
+  private isVisible(): boolean {
+    return this.getStartFontSizeFromHeight() > 0;
+  }
+}