@memberjunction/ng-container-directives

Angular directives for container management in MemberJunction applications — mjContainer for dynamic component loading via ViewContainerRef, and mjFillContainer for automatic element resizing to fill parent containers.

Overview

This package provides two essential layout directives. mjContainer exposes a ViewContainerRef for programmatic component creation. mjFillContainer automatically calculates and sets element dimensions based on the parent container, with context-aware behavior that skips resizing inside grids, hidden tabs, or elements marked with mjSkipResize.

graph TD
    A[ContainerDirectivesModule] --> B["mjContainer Directive"]
    A --> C["mjFillContainer Directive"]

    B --> B1["Exposes ViewContainerRef"]
    B --> B2["Dynamic Component Loading"]

    C --> C1["Auto Width/Height Calculation"]
    C --> C2["Window Resize Handling
    (dual debounce)"]
    C --> C3["MJGlobal Manual Resize Events"]
    C --> C4["Context-Aware Skipping
    (grids, hidden tabs, mjSkipResize)"]

    style A fill:#2d6a9f,stroke:#1a4971,color:#fff
    style B fill:#7c5295,stroke:#563a6b,color:#fff
    style C fill:#2d8659,stroke:#1a5c3a,color:#fff

Installation

npm install @memberjunction/ng-container-directives

Usage

Import the Module

import { ContainerDirectivesModule } from '@memberjunction/ng-container-directives';

@NgModule({
  imports: [ContainerDirectivesModule]
})
export class YourModule { }

mjContainer

Exposes a ViewContainerRef for dynamic component loading:

<div mjContainer></div>

import { Container } from '@memberjunction/ng-container-directives';

@Component({
  selector: 'app-dynamic-host',
  template: `<div mjContainer></div>`
})
export class DynamicHostComponent {
  @ViewChild(Container, { static: true }) container!: Container;

  ngOnInit() {
    const ref = this.container.viewContainerRef;
    // ref.createComponent(YourDynamicComponent);
  }
}

mjFillContainer

Automatically resizes an element to fill its parent:

<!-- Fills both width and height (default) -->
<div mjFillContainer>Content</div>

<!-- Custom margins -->
<div mjFillContainer [fillWidth]="true" [fillHeight]="true" [rightMargin]="10" [bottomMargin]="20">
  Content with margins
</div>

<!-- Fill only width -->
<div mjFillContainer [fillWidth]="true" [fillHeight]="false">
  Content that fills width only
</div>

Skipping Resize

<div mjSkipResize>This element will not be resized</div>

Manual Resize Triggering

import { MJGlobal, MJEventType } from '@memberjunction/global';

MJGlobal.Instance.RaiseEvent({
  event: MJEventType.ManualResizeRequest,
  args: null
});

Configuration

mjFillContainer Inputs

Property	Type	Default	Description
fillWidth	boolean	true	Fill the parent’s width
fillHeight	boolean	true	Fill the parent’s height
rightMargin	number	0	Right margin in pixels
bottomMargin	number	0	Bottom margin in pixels

Static Properties

import { FillContainer } from '@memberjunction/ng-container-directives';

// Disable resize globally
FillContainer.DisableResize = true;

// Enable debug logging
FillContainer.OutputDebugInfo = true;

How It Works

1. Parent detection: Identifies the nearest block-level parent element
2. Size calculation: Computes dimensions based on parent size, element position, and margins
3. Event handling: Listens for window resize (dual debounce: 100ms active, 500ms settled) and MJGlobal manual resize events
4. Context awareness: Automatically skips elements with mjSkipResize, elements inside grids (role="grid"), hidden tabs, or hidden/undisplayed parents

Dependencies

Package	Description
@memberjunction/core	Core utilities and logging
@memberjunction/global	Global event system
rxjs	Event handling and debouncing

Peer Dependencies

• @angular/common ^21.x
• @angular/core ^21.x
• @angular/router ^21.x

Build

cd packages/Angular/Generic/container-directives
npm run build

License

ISC