Angular - Applying styles to child components when parent components are hovered over

Question

Angular - Applying styles to child components when parent components are hovered over

What is the best way to style a child component when hovering on a parent component, even across component boundaries in Angular 17?

The traditional method of using parent:hover .child in the parent CSS doesn't seem to work on the child component. Is there a more effective approach, considering that :host ng::deep is deprecated?

Is there a way to pass styles from a parent component to a child component when hovering on the parent? Or can an Input be passed to the child component when hovering on the parent?

Thank you for your assistance,

ST

Update - Solution:

The following solution appears to be the most effective for creating local template variables, although some guidelines discourage the use of *ngIf in this manner. Nonetheless, this solution does work!

<div *ngIf="{ active: false } as $" (mouseenter)="$.active = true" (mouseleave)="$.active = false"><app-child [active]="$.active" /></div>

css angular

Answer 1

Answer №1

Here are a few possibilities to consider:

Include
```
encapsulation: ViewEncapsulation.None
```
in the parent component (refer to the documentation for more information).
Utilize the
```
:host-context(.parent:hover) .child
```
selector in the child component (see the docs for guidance).
Employ the .parent:hover ::ng-deep .child selector in the parent component. Although this feature is deprecated, it is still commonly used.

Introduce an additional variable, particularly in more complex scenarios.

<div (mouseenter)="active = true" (mouseleave)="active = false">
  <app-child [active]="active" />
</div>

Answer 2

Here are a few possibilities to consider:

Include
```
encapsulation: ViewEncapsulation.None
```
in the parent component (refer to the documentation for more information).
Utilize the
```
:host-context(.parent:hover) .child
```
selector in the child component (see the docs for guidance).
Employ the .parent:hover ::ng-deep .child selector in the parent component. Although this feature is deprecated, it is still commonly used.

Introduce an additional variable, particularly in more complex scenarios.

<div (mouseenter)="active = true" (mouseleave)="active = false">
  <app-child [active]="active" />
</div>

Answer 3

Answer №2

If you want to achieve a similar hover effect, consider utilizing the HostListener feature in Angular. Check out the documentation here

You can create the hover effect by listening for the mouseenter and mouseleave events in your component

@HostListener('mouseenter') onHover() {
    // add styling for child elements
}

Answer 4

If you want to achieve a similar hover effect, consider utilizing the HostListener feature in Angular. Check out the documentation here

You can create the hover effect by listening for the mouseenter and mouseleave events in your component

@HostListener('mouseenter') onHover() {
    // add styling for child elements
}

Answer 5

Answer №3

To keep things simple, just incorporate the necessary style in global_styles.css by assigning a unique class to each component. This way, the CSS won't interfere with other elements. Here's an example:

global_styles.css

app-parent-component .parent:hover app-child-component .child {
  padding: 0px
}

The selectors app-parent-component and app-child-component refer to specific components in Angular, ensuring the CSS is targeted correctly!

Answer 6

To keep things simple, just incorporate the necessary style in global_styles.css by assigning a unique class to each component. This way, the CSS won't interfere with other elements. Here's an example:

global_styles.css

app-parent-component .parent:hover app-child-component .child {
  padding: 0px
}

The selectors app-parent-component and app-child-component refer to specific components in Angular, ensuring the CSS is targeted correctly!

Angular - Applying styles to child components when parent components are hovered over

Answer №1

Answer №2

Answer №3

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