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Merge pull request #11 from CrowdStrike/5-add-the-toucan-button-compo…
…nent feat(#5): Add Button component
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```hbs template | ||
<Button @onClick={{this.onClick}} @variant='secondary'>Button</Button> | ||
``` | ||
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```js component | ||
import Component from '@glimmer/component'; | ||
import { action } from '@ember/object'; | ||
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export default class extends Component { | ||
@action | ||
onClick(e) { | ||
alert('Button clicked!'); | ||
} | ||
} | ||
``` |
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# Button | ||
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Buttons are clickable elements used primarily for actions. Button content expresses what action will occur when the user interacts with it. | ||
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## Variants | ||
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You can customize the appearance of the button with the `@variant` component argument. | ||
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<div class="flex gap-x-4"> | ||
<Button @variant="primary">Primary</Button> | ||
<Button @variant="secondary">Secondary</Button> | ||
<Button @variant="destructive">Destructive</Button> | ||
<Button @variant="link">Link</Button> | ||
<Button @variant="quiet">Quiet</Button> | ||
<Button @variant="bare">Bare</Button> | ||
</div> | ||
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## Handling Clicks | ||
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To handle click events use the `@onClick` component argument. | ||
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```hbs | ||
<Button @onClick={{this.handleClick}}>Click Me</Button> | ||
``` | ||
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## Disabled State | ||
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`aria-disabled` is used over the `disabled` attribute so that screenreaders can still focus the element. To set the button as disabled, use `@isDisabled`. | ||
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```hbs | ||
<Button @isDisabled={{true}}>Disabled</Button> | ||
``` | ||
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A disabled named block is provided so that users can optionally render additional content when the button is disabled. | ||
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```hbs | ||
<Button @isDisabled={{true}}> | ||
<:disabled> | ||
<svg | ||
class='h-4 w-4' | ||
xmlns='http://www.w3.org/2000/svg' | ||
width='24' | ||
height='24' | ||
stroke='currentColor' | ||
viewBox='0 0 24 24' | ||
> | ||
<path | ||
d='M18.644 21h-13.2a.945.945 0 01-1-1v-7.2a.945.945 0 011-1h13.1a.945.945 0 011 1V20a.808.808 0 01-.225.725.966.966 0 01-.675.275zm-10.9-9.2V7.3a4.3 4.3 0 118.6 0v4.5m-4.3 3.7v2' | ||
fill='none' | ||
stroke-linecap='round' | ||
stroke-linejoin='round' | ||
stroke-width='2' | ||
/> | ||
</svg> | ||
</:disabled> | ||
<:default> | ||
Disabled | ||
</:default> | ||
</Button> | ||
``` | ||
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<div class="flex gap-x-4"> | ||
{{#each (array "primary" "secondary" "destructive" "link" "quiet" "bare") as |variant|}} | ||
<Button @variant={{variant}} @isDisabled={{true}}> | ||
<:disabled> | ||
<svg | ||
class='h-4 w-4' | ||
xmlns='http://www.w3.org/2000/svg' | ||
width='24' | ||
height='24' | ||
stroke='currentColor' | ||
viewBox='0 0 24 24' | ||
> | ||
<path | ||
d="M18.644 21h-13.2a.945.945 0 01-1-1v-7.2a.945.945 0 011-1h13.1a.945.945 0 011 1V20a.808.808 0 01-.225.725.966.966 0 01-.675.275zm-10.9-9.2V7.3a4.3 4.3 0 118.6 0v4.5m-4.3 3.7v2" | ||
fill='none' | ||
stroke-linecap='round' | ||
stroke-linejoin='round' | ||
stroke-width='2' | ||
/> | ||
</svg> | ||
</:disabled> | ||
<:default> | ||
{{variant}} | ||
</:default> | ||
</Button> | ||
{{/each}} | ||
</div> | ||
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## Loading State | ||
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Button exposes an `@isLoading` component argument. The button content will be only visible to screenreaders. | ||
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```hbs | ||
<Button @isLoading={{true}}>Loading…</Button> | ||
``` | ||
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A loading named block is also provided for providing custom loading content. | ||
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```hbs | ||
<Button @isLoading={{true}}> | ||
<:loading> | ||
<svg | ||
class='h-4 w-4 animate-spin' | ||
xmlns='http://www.w3.org/2000/svg' | ||
width='24' | ||
height='24' | ||
stroke='currentColor' | ||
viewBox='0 0 24 24' | ||
> | ||
<path | ||
d='M5.95 5.7L7 6.75 8.05 7.8m8.4 8.4l.95.95.95.95m.2-12.4L17.5 6.75 16.45 7.8M6.35 12h-3.1m17.5 0h-2.6m-5.9 9v-3.1m0-14.9v3.1' | ||
fill='none' | ||
stroke-linecap='round' | ||
stroke-linejoin='round' | ||
stroke-width='2' | ||
/> | ||
</svg> | ||
</:loading> | ||
<:default> | ||
Loading… | ||
</:default> | ||
</Button> | ||
``` | ||
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<div class="flex gap-x-4"> | ||
{{#each (array "primary" "secondary" "destructive" "link" "quiet" "bare") as |variant|}} | ||
<Button @variant={{variant}} @isLoading={{true}}> | ||
<:loading> | ||
<svg | ||
class='h-4 w-4 animate-spin' | ||
xmlns="http://www.w3.org/2000/svg" | ||
width="24" | ||
height="24" | ||
stroke="currentColor" | ||
viewBox="0 0 24 24" | ||
> | ||
<path | ||
d="M5.95 5.7L7 6.75 8.05 7.8m8.4 8.4l.95.95.95.95m.2-12.4L17.5 6.75 16.45 7.8M6.35 12h-3.1m17.5 0h-2.6m-5.9 9v-3.1m0-14.9v3.1" | ||
fill="none" | ||
stroke-linecap="round" | ||
stroke-linejoin="round" | ||
stroke-width="2" | ||
/> | ||
</svg> | ||
</:loading> | ||
<:default> | ||
{{variant}} | ||
</:default> | ||
</Button> | ||
{{/each}} | ||
</div> |
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<button | ||
aria-disabled={{if @isDisabled "true"}} | ||
class={{this.styles}} | ||
type="button" | ||
{{on "click" this.onClick}} | ||
...attributes | ||
> | ||
{{#if @isLoading}} | ||
{{yield to="loading"}} | ||
<span class="sr-only" data-loading>{{yield}}</span> | ||
{{else if @isDisabled}} | ||
<span class="flex items-center gap-x-2"> | ||
{{yield}} | ||
{{yield to="disabled"}} | ||
</span> | ||
{{else}} | ||
{{yield}} | ||
{{/if}} | ||
</button> |
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