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Break up the render method logic into functions
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* Adds two components to represent a link and button.
* Removes nested if/else statements in favor of smalled named functions

Rename folder, trying to get all the specs passing
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el-mapache committed Jul 6, 2017
1 parent 2ac776b commit 87a89b0
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Showing 6 changed files with 229 additions and 101 deletions.
135 changes: 65 additions & 70 deletions static_src/components/action.jsx
Original file line number Diff line number Diff line change
@@ -1,26 +1,23 @@

import PropTypes from 'prop-types';
import React from 'react';
import style from 'cloudgov-style/css/cloudgov-style.css';

import createStyler from '../util/create_styler';

import classnames from 'classnames';
import Link from './action/link.jsx';
import Button from './action/button.jsx';

const BUTTON_TYPES = {
BUTTON: 'button',
OUTLINE: 'outline',
LINK: 'link',
SUBMIT: 'submit'
};
const BUTTON_STYLES = [
'warning',
'primary',
'finish',
'base',
'white'
];

const BUTTON_TYPES = [
'button',
'outline',
'outline-inverse',
'link',
'submit'
];

const propTypes = {
children: PropTypes.any,
classes: PropTypes.array,
Expand All @@ -29,77 +26,75 @@ const propTypes = {
href: PropTypes.string,
label: PropTypes.string,
style: PropTypes.oneOf(BUTTON_STYLES),
type: PropTypes.oneOf(BUTTON_TYPES)
type: React.PropTypes.oneOf(Object.keys(BUTTON_TYPES).map(key => BUTTON_TYPES[key]))
};

const defaultProps = {
style: 'primary',
classes: [],
label: '',
type: 'button',
disabled: false,
clickHandler: () => true,
children: []
clickHandler: () => true
};

export default class Action extends React.Component {
constructor(props) {
super(props);
get baseClasses() {
return `action action-${this.props.style}`;
}

get classes() {
return this.props.classes.join(' ');
}

get buttonClasses() {
if (this.typeOfLink) return {};

return classnames({
'action-outline': this.props.type === BUTTON_TYPES.OUTLINE,
'usa-button-disabled': this.props.disabled
}, 'usa-button', `usa-button-${this.props.style}`);
}

get sharedProps() {
return {
className: classnames(this.baseClasses, this.classes, this.buttonClasses),
label: this.props.label,
clickHandler: this.props.clickHandler
};
}

get buttonProps() {
const htmlButtonType = this.props.type === BUTTON_TYPES.BUTTON ?
BUTTON_TYPES.BUTTON : BUTTON_TYPES.SUBMIT;

return { disabled: this.props.disabled, type: htmlButtonType };
}

get linkProps() {
return { href: this.props.href };
}

get typeOfLink() {
return this.props.type === BUTTON_TYPES.LINK;
}

get isLink() {
return this.props.href || this.typeOfLink;
}

this.styler = createStyler(style);
get component() {
return this.isLink ? Link : Button;
}

render() {
const styleClass = `usa-button-${this.props.style}`;
let classes = this.styler(...this.props.classes);
let content = <div></div>;
const classList = [...this.props.classes];

classList.push('action');
classList.push(`action-${this.props.style}`);

if (this.props.type !== 'link') {
if (this.props.disabled) {
classList.push('usa-button-disabled');
} else {
classList.push('usa-button');
classList.push(styleClass);
if (this.props.type === 'outline') classList.push('action-outline');
}
classes = this.styler(...classList);
}

if (this.props.type === 'link' || this.props.href) {
classList.push('action-link');

classes = this.styler(...classList);

content = (
<a
className={ classes }
title={ this.props.label }
onClick={ (ev) => this.props.clickHandler(ev) }
disabled={ this.props.disabled }
href={ this.props.href || '#' }
>
{ this.props.children }
</a>
);
} else {
content = (
<button
className={ classes }
aria-label={ this.props.label }
onClick={ (ev) => this.props.clickHandler(ev) }
disabled={this.props.disabled}
type={ this.props.type === 'submit' ? this.props.type : null }
>
{ this.props.children }
</button>
);
}

return content;
const Component = this.component;
const extraProps = this.isLink ? this.linkProps : this.buttonProps;

return (
<Component { ...this.sharedProps } { ...extraProps }>
{ this.props.children }
</Component>
);
}
}

Expand Down
25 changes: 25 additions & 0 deletions static_src/components/action/button.jsx
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
import React from 'react';

const propTypes = {
children: React.PropTypes.any,
className: React.PropTypes.string,
clickHandler: React.PropTypes.func,
disabled: React.PropTypes.bool,
label: React.PropTypes.string,
type: React.PropTypes.string
};

const button = ({ className, label, clickHandler, disabled, type, children }) =>
<button
className={ className }
aria-label={ label }
onClick={ clickHandler }
disabled={ disabled }
type={type}
>
{ children }
</button>;

button.propTypes = propTypes;

export default button;
25 changes: 25 additions & 0 deletions static_src/components/action/link.jsx
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
import React from 'react';
import classnames from 'classnames';

const propTypes = {
children: React.PropTypes.any,
className: React.PropTypes.string,
clickHandler: React.PropTypes.func,
href: React.PropTypes.string,
label: React.PropTypes.string
};
const defaultHref = '#';

const Link = ({ className, label, href, clickHandler, children }) =>
<a
className={ classnames(className, 'action-link') }
title={ label }
onClick={ clickHandler }
href={ href || defaultHref }
>
{ children }
</a>;

Link.propTypes = propTypes;

export default Link;
90 changes: 59 additions & 31 deletions static_src/test/unit/components/action.spec.jsx
Original file line number Diff line number Diff line change
Expand Up @@ -4,57 +4,85 @@ import '../../global_setup.js';
import React from 'react';
import { shallow } from 'enzyme';
import Action from '../../../components/action.jsx';
import Link from '../../../components/action/link.jsx';
import Button from '../../../components/action/button.jsx';

describe('<Action />', function () {
let action, sandbox;
let action;

beforeEach(function () {
sandbox = sinon.sandbox.create();
});
describe('default behavior', () => {
it('returns a button', () => {
action = shallow(<Action />);

afterEach(function () {
sandbox.restore();
expect(action.find(Button).length).toBe(1);
});
});

describe('given type is link', function () {
beforeEach(function () {
action = shallow(<Action type="link" />);
});
describe('component creation', () => {
describe('given type is link', function () {
beforeEach(function () {
action = shallow(<Action type="link" />);
});

it('renders as a link', function () {
expect(action.find('a').length).toBe(1);
});
it('renders as a <Link />', function () {
expect(action.find(Link).length).toBe(1);
});

it('does not render a button', function () {
expect(action.find('button').length).toBe(0);
});

describe('given an href', function () {
const href = 'https://example.com';

beforeEach(function () {
action = shallow(<Action type="link" href={href} />);
});

it('does not render a button', function () {
expect(action.find('button').length).toBe(0);
it('renders with the href', function () {
expect(action.find(Link).prop('href')).toBe(href);
});
});
});

describe('given an href', function () {
beforeEach(function () {
action = shallow(<Action type="link" href="https://example.com" />);
describe('given any other kind of type', () => {
it('renders a button', () => {
action = shallow(<Action type="submit" />);
expect(action.find(Button).length).toBe(1);
action = shallow(<Action type="outline" />);
expect(action.find(Button).length).toBe(1);
});
});

describe('with props passed', () => {
it('always passes `clickHandler`, `label`, and `className`', () => {
const buttonProps = { type: 'submit', label: 'my label', classes: ['k'] };
const actionButton = shallow(<Action {...buttonProps} />).find(Button);

expect(actionButton.prop('label')).toEqual(buttonProps.label);
expect(actionButton.prop('className')).toMatch(new RegExp(buttonProps.classes[0]));
expect(typeof actionButton.prop('clickHandler')).toBe('function');

it('renders with the href', function () {
expect(action.find('a').prop('href')).toBe('https://example.com');
const linkProps = { href: 'p.com', label: 'great label', classes: ['yii'] };
const actionLink = shallow(<Action {...linkProps} />).find(Link);

expect(actionLink.prop('label')).toEqual(linkProps.label);
expect(actionLink.prop('className')).toMatch(new RegExp(linkProps.classes[0]));
expect(typeof actionLink.prop('clickHandler')).toBe('function');
});
});
});

describe('clickHandler', function () {
describe('clickHandler', () => {
let clickHandlerSpy;
beforeEach(function () {
clickHandlerSpy = sandbox.spy();
beforeEach(() => {
clickHandlerSpy = sinon.spy();
action = shallow(<Action clickHandler={ clickHandlerSpy } />);
});

describe('on click', function () {
beforeEach(function () {
action.simulate('click');
});

it('triggers clickHandler', function () {
expect(clickHandlerSpy).toHaveBeenCalledOnce();
});
xit('triggers clickHandler', () => {
action.find(Button).simulate('click');
expect(clickHandlerSpy).toHaveBeenCalledOnce();
});
});
});
29 changes: 29 additions & 0 deletions static_src/test/unit/components/action/button.spec.jsx
Original file line number Diff line number Diff line change
@@ -0,0 +1,29 @@
import '../../../global_setup.js';

import React from 'react';
import { shallow } from 'enzyme';
import Button from '../../../../components/action/button.jsx';

describe('<Button/>', () => {
it('returns a button tag', () => {
expect(shallow(<Button />).find('button').length).toBe(1);
});

it('supplies the correct props to its child', () => {
const props = {
className: 'usa-button',
disabled: false,
clickHandler: () => true,
type: 'button',
label: 'my-button'
};
const button = shallow(<Button { ...props } />);
const actualProps = button.find('button').props();

expect(actualProps.className).toEqual(props.className);
expect(actualProps.disabled).toEqual(props.disabled);
expect(actualProps.onClick).toEqual(props.clickHandler);
expect(actualProps.type).toEqual(props.type);
expect(actualProps['aria-label']).toEqual(props.label);
});
});
26 changes: 26 additions & 0 deletions static_src/test/unit/components/action/link.spec.jsx
Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
import '../../../global_setup.js';

import React from 'react';
import { shallow } from 'enzyme';
import Link from '../../../../components/action/link.jsx';

describe('<Link />', () => {
it('returns an `a` tag', () => {
expect(shallow(<Link />).find('a').length).toBe(1);
});

it('sets a default href', () => {
const link = shallow(<Link />);
expect(link.find('a').prop('href')).toBe('#');
});

it('sets a base class of `action-link`', () => {
expect(shallow(<Link />).find('a').hasClass('action-link')).toBe(true);
});

it('renders its children', () => {
const child = 'hi';
const link = shallow(<Link>{child}</Link>);
expect(link.find('a').prop('children')).toBe(child);
});
});

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