NgSvgEditor

ng-svg-editor is a lightweight and very complete Angular library for editing SVG template inside any Angular project. It was built for modern browsers using TypeScript, HTML5 and Angular >=12.x.x.

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Getting started

How to use svg editor in your projects

Using library locally

Run the below command and use npm link under dist/svg-editor folder in your application

npm run watch

License

This project is licensed under the MIT License. See LICENSE for more information.

Table of contents

• Installation
• Import in Angular
• Options
• Handle events

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Installation

$ npm install --save ng-svg-editor

Import in Angular

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { SvgEditorModule } from 'svg-editor';

import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    SvgEditorModule
  ],
  providers: [ ],
  bootstrap: [ AppComponent ]
})
export class AppModule { }

<svg-editor [togglePreview]="togglePreview" [onEdit]="onEdit" (elementClicked)="elementClicked($event)" [svgContent]="svgStringSanitized"></svg-editor>

Options

svg-editor comes with some parameters / options in order to make it fit your needs. The following parameters / options have to be used like this:

Note: image upload accepts either URL / base64 string

<svg-editor [parameter-or-option-name]="value"></svg-editor>

Option	Type	Required	Description
svgContent	@@Input String	Yes	SVG content
icon	@@Input String	Optional	SVG edit icon
onEdit	@Input Observable	Yes	Observable Subject to send edited element, type and updated value
elementClicked	@Output EventEmitter	Yes	Event emitter when a SVG element is clicked
togglePreview	@Input Observable	Optional	Observable Subject for preview and edit toggle

Handle events

<svg-editor [togglePreview]="togglePreview" [onEdit]="onEdit" (elementClicked)="elementClicked($event)" [svgContent]="svgStringSanitized"></svg-editor>

elementClicked

Handling Event emitted when a SVG element is clicked

@Component({
  // ...
})
export class AppComponent {
  onEdit: Subject<any> = new Subject();
  selectedElement: any;
  constructor() {
  }

  public elementClicked(e: any) {
    this.selectedElement = e;
    if (e.type == 'text') {
      // If element clicked is `text`; execute editText method
      this.editText(e);
    } else {
      // If element clicked is `image`; execute imageUpload method
      this.imageUpload();
    }
  }
}

onEdit

Observable Subject to send edited element, type and updated value

@Component({
  // ...
})
export class AppComponent {
  onEdit: Subject<any> = new Subject();
  selectedElement: any;
  constructor() {
  }

  public elementClicked(e: any) {
    this.selectedElement = e;
    if (e.type == 'text') {
      // If element clicked is `text`; execute editText method
      this.editText(e);
    } else {
      // If element clicked is `image`; execute imageUpload method
      this.imageUpload();
    }
  }

  public editText(e: any) {
    let inputText = prompt("Provide updated value", e.element.textContent);
    if (inputText) {
      this.onEdit.next({
        element: e.element,
        type: 'text',
        value: inputText
      });
    }
  }

  imageUpload() {
    let text = "Upload image with URL; select cancel to upload image from your computer";
    if (confirm(text) == true) {
      let inputText = prompt("Provide image URL value");
      if (inputText) {
        this.onEdit.next({
          element: this.selectedElement.element,
          type: 'image',
          value: inputText
        });
      }
    } else {
      this.onEdit.next({
        element: this.selectedElement.element,
        type: 'image',
        value: <BASE_64 STRING>
      });
    }
  }
}

togglePreview

Toggle preview and edit on SVG template

  <div class="d-inline-flex flex-column mx-2">
    <h4>Toggle Edit / Preview</h4>
    <button *ngIf="previewButton == 'show'" type="button" class="btn btn-primary" (click)="toggleSVGPreview()">Preview</button>
    <button *ngIf="previewButton == 'hide'" type="button" class="btn btn-primary" (click)="toggleSVGPreview()">Edit</button>
  </div>

@Component({
  // ...
})
export class AppComponent {
  togglePreview: Subject<any> = new Subject();
  previewButton: string;
  constructor() {
    this.previewButton = 'show';
  }

  public toggleSVGPreview() {
    this.previewButton = this.previewButton == 'show' ? 'hide' : 'show';
    this.togglePreview.next(this.previewButton);
  }
}