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| import Component from '@ember/component';
import { computed } from '@ember/object';
import { or } from '@ember/object/computed';
import { isPresent, isBlank, isNone } from '@ember/utils';
import { handleMouseUpByBlurring } from '../utils/focus';
import layout from '../templates/components/polaris-button';
/**
* Polaris button component.
* See https://polaris.shopify.com/components/actions/button
*/
export default Component.extend({
// Polaris react behaviour is to render an anchor element if a URL is provided,
// or a button element otherwise. Ember components can't support dynamic tagNames,
// so we reproduce this behaviour using a dynamic component in block form in our template.
tagName: '',
layout,
/**
* The content to display inside the button
*
* This component can be used in block form,
* in which case the block content will be used
* instead of `text`
*
* @property text
* @public
* @type {String}
* @default null
*/
text: null,
/**
* URL to link to
*
* @property url
* @public
* @type {string}
* @default null
*/
url: null,
/**
* Display as primary button
*
* @property primary
* @public
* @type {boolean}
* @default false
*/
primary: false,
/**
* Display as destructive button
*
* @property destructive
* @public
* @type {boolean}
* @default false
*/
destructive: false,
/**
* Disable button
*
* @property disabled
* @public
* @type {boolean}
* @default false
*/
disabled: false,
/**
* Replaces button text with a spinner while a background action is being performed
*
* @property loading
* @public
* @type {boolean}
* @default false
*/
loading: false,
/**
* Change the size of the button
*
* @property size
* @public
* @type {enum}
* @default null
*/
size: null,
/**
* Display an outlined button
*
* @property outline
* @public
* @type {boolean}
* @default false
*/
outline: false,
/**
* Display full width button
*
* @property fullWidth
* @public
* @type {boolean}
* @default false
*/
fullWidth: false,
/**
* Display button with a disclosure icon
*
* @property disclosure
* @public
* @type {boolean}
* @default false
*/
disclosure: false,
/**
* Button will submit a form
*
* @property submit
* @public
* @type {boolean}
* @default false
*/
submit: false,
/**
* Use plain button style
*
* @property plain
* @public
* @type {boolean}
* @default false
*/
plain: false,
/**
* Force url to open in a new tab
*
* @property external
* @public
* @type {boolean}
* @default false
*/
external: false,
/**
* Icon to display to the left of the button content
*
* @property icon
* @public
* @type {SVG}
* @default null
*/
icon: null,
/**
* Visually hidden text for screen readers
*
* @property accessibilityLabel
* @public
* @type {string}
* @default null
*/
accessibilityLabel: null,
/**
* ID of the element this button reveals
*
* @property ariaControls
* @public
* @type {string}
* @default null
*/
ariaControls: null,
/**
* Whether the content revealed by this button is visible
*
* @property ariaExpanded
* @public
* @type {boolean|null}
* @default null
*/
ariaExpanded: null,
/**
* Callback when clicked
*
* @property onClick
* @public
* @type {function}
* @default null
*/
onClick: null,
/**
* Callback when button becomes focussed
*
* @property onFocus
* @public
* @type {function}
* @default null
*/
onFocus: null,
/**
* Callback when focus leaves button
*
* @property onBlur
* @public
* @type {function}
* @default null
*/
onBlur: null,
/**
* Computed properties.
*/
isDisabled: or('disabled', 'loading').readOnly(),
buttonComponentName: computed('url', function() {
// TODO: refactor to use polaris-unstyled-link here
const buttonType = isNone(this.get('url')) ? 'button' : 'link';
return `polaris-button/${buttonType}`;
}).readOnly(),
iconOnly: computed('icon', 'text', function() {
return isBlank(this.get('text')) && isPresent(this.get('icon'));
}).readOnly(),
iconSource: computed('icon', 'loading', function() {
return this.get('loading') ? 'placeholder' : this.get('icon');
}).readOnly(),
disclosureIconSource: computed('loading', function() {
return this.get('loading') ? 'placeholder' : 'caret-down';
}).readOnly(),
spinnerColor: computed('primary', 'destructive', function() {
let { primary, destructive } = this.getProperties('primary', 'destructive');
return primary || destructive ? 'white' : 'inkLightest';
}).readOnly(),
ariaExpandedValue: computed('ariaExpanded', function() {
let ariaExpanded = this.get('ariaExpanded');
return isPresent(ariaExpanded) ? ariaExpanded.toString() : null;
}).readOnly(),
handleMouseUpByBlurring,
});
|