ngx-modal-ease

Description

ngx-modal-ease is a versatile Angular library providing a lightweight, simple, and performant modal. This library supports data communication between components, opening of multiple modals, custom animations, and a range of customisable options.

Support Angular version starts at v16 (see changelog).

Demo

Live demonstration of the ngx-modal-ease library here.

Installation

Options

The modal supports a range of customisable options:

Options {
  modal?: {
    enter?: string;
    leave?: string;
    top?: string;
    left?: string;
  };
  overlay?: {
    enter?: string;
    leave?: string;
    backgroundColor?: string;
  };
  size?: {
    height?: string;
    maxHeight?: string;
    width?: string;
    maxWidth?: string;
    padding?: string;
  };
  actions?: {
    escape?: boolean;
    click?: boolean;
  };
  data?: {
    [key: string]: unknown;
  };
}

Complete Example

Inject the ModalService through regular dependency injection in your component.

In the following example, ModalContentComponent is the content of the modal and should be provided as first parameter. As second parameter, provide an object respecting the Options interface (see above).

NB: From the V18 compatible version, observables have been transformed to regular Promises to anticipate the future optional RxJS.

  this.modalService.open(ModalContentComponent, {
    modal: {
      // animation
      enter: 'enter-scale-down 0.1s ease-out',
    },
    overlay: {
      // animation
      leave: 'fade-out 0.3s',
    },
    size: {
      // modal configuration
      width: '400px',
    },
    data: {
      // data to ModalContentComponent
      type: 'Angular modal library',
    },
  })
  // .then() or async / await for V18 compatible version
  .subscribe((dataFromModalContentComponent) => {
    ...
  });

Any type of data can be provided between components. Create the corresponding property (here, type) in your component (here, ModalContentComponent) and the property will be assigned with the provided value.

In your ModalContentComponent: To pass information from the ModalContentComponent to your current component, inject the ModalService through regular dependency injection and call the close(data) method from the service with any data you wish to send back to your component. This method returns an RxJs subject (a promise for V18 compatible version), so subscribe to it as shown in the above example. It is not necessary to unsubscribe from the subscription since it will automatically complete() in the service.

  // Inside ModalContentComponent
  onClose() {
    this.modalService.close(this.dataToSendBack);
  }

Publicly available methods have been exhaustively documented and typed, so you should get autocomplete and help from your code editor. Press on CTRL + space to get help on the available properties in the Options object.

ModalService

This library exposes a ModalService that contains the following API:

// Opens a component inside the modal
open<C>(componentToCreate: Type<C>, options?: Options);

// Close a modal with optional data to send back
close(data?: unknown);

// Close all opened modals
closeAll();

NB: Z-index of overlay and modal start at 1000 and 2000 respectively. In case of multiple modals, z-indexes will be incremented by 1000.

Ready-to-use animations keyframes

This library comes with predefined and ready-to-use animations keyframes. Just fill in the name, duration and easing function (more info on the animation CSS shorthand here). Those animations are position agnostic, so if you wish to position your modal at other top and left values than default, it will correctly work. Of course, you can create your own keyframes too.

/* Recommended: 0.2s ease-out */
@keyframes enter-going-down {
  from {
    transform: translate(-50%, -60%);
  }
  to {
    transform: translate(-50%, -50%);
  }
}

/* Recommended: 0.2s linear */
@keyframes enter-scaling {
  from {
    transform: scale(0.8) translate(-50%, -50%);
    transform-origin: left;
  }
  to {
    transform: scale(1) translate(-50%, -50%);
    transform-origin: left;
  }
}

/* Recommended: 0.1s ease-out */
@keyframes enter-scale-down {
  from {
    transform: scale(1.5) translate(-50%, -60%);
    transform-origin: left;
  }
  to {
    transform: scale(1) translate(-50%, -50%);
    transform-origin: left;
  }
}

/* Recommended: 0.3s linear */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Recommended: 0.3s linear */
@keyframes fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* Recommended: 0.7s linear */
@keyframes bounce-in {
  0% {
    transform: translate(-50%, -85%);
  }
  18% {
    transform: translate(-50%, -50%);
  }
  60% {
    transform: translate(-50%, -65%);
  }
  80% {
    transform: translate(-50%, -50%);
  }
  90% {
    transform: translate(-50%, -53%);
  }
  100% {
    transform: translate(-50%, -50%);
  }
}

/* Recommended: 1s linear */
@keyframes scale-rotate {
  30% {
    transform: scale(1.05) translate(-50%, -50%);
    transform-origin: left;
  }
  40%,
  60% {
    transform: rotate(-3deg) scale(1.05) translate(-50%, -50%);
    transform-origin: left;
  }
  50% {
    transform: rotate(3deg) scale(1.05) translate(-50%, -50%);
    transform-origin: left;
  }
  70% {
    transform: rotate(0deg) scale(1.05) translate(-50%, -50%);
    transform-origin: left;
  }
  100% {
    transform: scale(1) translate(-50%, -50%);
    transform-origin: left;
  }
}

If you create your own keyframes, I would recommend to create a new file modal-animations (.css or preprocessor), and @import it in your styles.css (or preprocessor) at the root of the application.

SSR (Server Side Rendering)

This library supports Server Side Rendering (SSR). The modal will not instantiate during server-side execution, as it requires access to the DOM API.

DX Friendly

This library has been documented and should provide autocomplete and help from your code editor. Tested on VS Code.

Performance

Emphasis has been placed on performance, adopting ChangeDetectionStrategy.OnPush strategy. This library respects Angular's mindset and use the Angular API to create components. Modal components will be removed from the DOM after closing.

Change log

Version 0.0.4: Fixed of a communication bug between components. Every modal has now its own subject to send back data to the calling component.

Version 0.0.5: Fixed a bug between components that prevented the component from closing when applying different animations with multiple stacked modals.

Version 0.0.6: Added V16 backward compatibility support.

Version 0.0.8: Incorporated internal component destruction to ensure proper invocation of the child's OnDestroy lifecycle hook.

Version 0.1.0: Added the V18 version. This version is compatible with a zoneless Angular application. Optional RxJS has been anticipated, observables have been transformed to regular Promises / event listeners.

Report a Bug

Please provide a detailed description of the encountered bug, including your options and the steps/actions that led to the issue. An accurate description will help me to reproduce the issue.

Ngx-ease serie

You like this library? Discover the ngx-ease serie here.