Angular Button Overview
Angular Button directive is used for creating and adding actionable buttons to a web page/application. There are different Angular Button types that are easy to customize and include several built-in features. By default, Angular Material uses native <button>
and <a>
elements to deliver an accessible experience.
The Ignite UI for Angular Button directive is intended to turn any button, span, div, or anchor element into a fully functional button. You can use the following Angular Button types - Flat Button, Raised Button, Outlined Button, Icon Button and Floating Action Button. With customizable colors, options to create themes and change the Angular Button Style and enabling users to choose the button size and more.
Angular Button Example
We have created the Angular Button example below to show you how different button types can appear and look like when they are styled with a border or when a transparent background is applied.
Getting Started with Ignite UI for Angular Button
To get started with the Ignite UI for Angular Button directive, first you need to install Ignite UI for Angular. In an existing Angular application, type the following command:
ng add igniteui-angular
For a complete introduction to the Ignite UI for Angular, read the getting started topic.
The next step is to import the IgxButtonModule
in your app.module.ts file.
// app.module.ts
import { IgxButtonModule } from 'igniteui-angular';
// import { IgxButtonModule } from '@infragistics/igniteui-angular'; for licensed package
@NgModule({
imports: [
...
IgxButtonModule,
...
]
})
export class AppModule {}
Alternatively, as of 16.0.0
you can import the IgxButtonDirective
as a standalone dependency.
// home.component.ts
...
import { IgxButtonDirective } from 'igniteui-angular';
// import { IgxButtonDirective } from '@infragistics/igniteui-angular'; for licensed package
@Component({
selector: 'app-home',
template: '<button igxButton="flat">Flat</button>',
styleUrls: ['home.component.scss'],
standalone: true,
imports: [IgxButtonDirective]
})
export class HomeComponent {}
Now that you have the Ignite UI for Angular Button module or directive imported, you can start using the igxButton
directive on elements.
Angular Button Types
Flat Button
Use the igxButton
directive to add a simple flat button in your component template. Note that if you do not choose a type, by default it will be set to flat
.
<button igxButton="flat">Flat</button>
Raised Button
All you have to do to create a raised button is to change the value of the igxButton
property:
<button igxButton="raised">Raised</button>
Outlined Button
Analogically, we can switch to outlined type:
<button igxButton="outlined">Outlined</button>
Icon Button
We can also use icons as buttons:
<button igxButton="icon">
<igx-icon fontSet="material">favorite</igx-icon>
</button>
Floating Action Button
We can create a floating action button and use an icon to display:
<button igxButton="fab">
<igx-icon fontSet="material">edit</igx-icon>
</button>
To create an extended FAB, you can add any element prior to the igx-icon
:
<button class="btn" igxButton="fab">
<span>like</span>
<igx-icon fontSet="material">favorite</igx-icon>
</button>
Note
To get the extended FAB text styled properly, use <span>
or <div>
tags.
Examples
Angular Disable Button
The disabled
property can be used to make a button unclickable:
<button igxButton="raised" [disabled]="'true'">Disabled</button>
Ripple
The igxRipple
directive adds a ripple effect to your buttons or other specified elements. You can easily change the default ripple color, position and duration, using its properties:
<button igxButton="raised" igxRipple="white" [igxRippleCentered]="true" [igxRippleDuration]="2000">
Ripple
</button>
Span
We can also use the igxButton
directive to turn elements like span
and div
into Ignite UI for Angular styled buttons. The default colors can be customized via the igxButtonColor
and the igxButtonBackground
properties:
<span igxButton="raised" igxButtonColor="white" igxButtonBackground="#72da67" igxRipple="white">
Span
</span>
Size (Display Density)
We can allow the user to choose the size of the igxButton
by using the --ig-size
custom CSS property. To do this, first we have to import the IgxButtonGroupModule
, and then use the igxButtonGroup
component to display size values. This way whenever one gets selected, we will update the --ig-size CSS property.
// app.module.ts
...
import { IgxButtonGroupModule } from 'igniteui-angular';
// import { IgxButtonGroupModule } from '@infragistics/igniteui-angular'; for licensed package
@NgModule({
imports: [
...
IgxButtonGroupModule
...
]
})
<!--buttons-density.component.html-->
<igx-buttongroup [values]="sizes" (selected)="selectSize($event)"></igx-buttongroup>
...
<button igxButton="flat">Flat</button>
// buttons-density.component.ts
public size = "large";
public sizes;
public ngOnInit() {
this.sizes = [
{ label: 'large', selected: this.size === 'large', togglable: true },
{ label: 'medium', selected: this.size === 'medium', togglable: true },
{ label: 'small', selected: this.size === 'small', togglable: true }
];
}
public selectSize(event: any) {
this.size = this.sizes[event.index].label;
}
@HostBinding('style.--ig-size')
protected get sizeStyle() {
return `var(--ig-size-${this.size})`;
}
If all went well, you should see something like the following in the browser:
Angular Button Styling
To get started with styling the button, we need to import the index
file, where all the theme functions and component mixins live:
@use "igniteui-angular/theming" as *;
// IMPORTANT: Prior to Ignite UI for Angular version 13 use:
// @import '~igniteui-angular/lib/core/styles/themes/index';
Following the simplest approach, we create a new theme that extends the button-theme
and accepts the $foreground
and the $background
parameters with their respective hover and focus parameters.
Given the following markup:
<div class="my-raised-btn">
<button igxButton="raised">Raised button</button>
</div>
We need to create a theme:
$custom-button-theme: button-theme(
$foreground: #fdfdfd,
$hover-foreground: #fdfdfd,
$focus-foreground: #fdfdfd,
$background: #345779,
$hover-background: #2e4d6b,
$focus-background: #2e4d6b,
$disabled-foreground: #2e4d6b
);
Take a look at the button-theme
section for a complete list of available parameters for styling any type of button.
Using CSS variables
The last step is to pass the custom button theme in our application:
.my-raised-btn {
@include css-vars($custom-button-theme);
}
Using Theme Overrides
In order to style components for older browsers, like Internet Explorer 11, we have to use a different approach, since it doesn't support CSS variables.
If the component is using the Emulated
ViewEncapsulation, it is necessary to penetrate
this encapsulation using ::ng-deep
. To prevent the custom theme to leak into other components, be sure to include the :host
selector before ::ng-deep
:
:host {
::ng-deep {
.my-raised-btn {
@include button($custom-button-theme);
}
}
}
Demo
API References
Additional Resources
Our community is active and always welcoming to new ideas.