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Merge pull request #8 from airbnb/garrett--auto-direction
[AutoDirectionProvider] Add component for automatically detected direction
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import PropTypes from 'prop-types'; | ||
import React from 'react'; | ||
import { forbidExtraProps } from 'airbnb-prop-types'; | ||
import getDirection from 'direction'; | ||
import directionPropType from './proptypes/direction'; | ||
import DirectionProvider from './DirectionProvider'; | ||
import withDirection from './withDirection'; | ||
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const propTypes = forbidExtraProps({ | ||
children: PropTypes.node.isRequired, | ||
direction: directionPropType.isRequired, | ||
inline: PropTypes.bool, | ||
text: PropTypes.string.isRequired, | ||
}); | ||
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const defaultProps = { | ||
inline: false, | ||
}; | ||
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function AutoDirectionProvider({ | ||
children, | ||
direction, | ||
inline, | ||
text, | ||
}) { | ||
const textDirection = getDirection(text); | ||
const dir = textDirection === 'neutral' ? direction : textDirection; | ||
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return ( | ||
<DirectionProvider | ||
direction={dir} | ||
inline={inline} | ||
> | ||
{React.Children.only(children)} | ||
</DirectionProvider> | ||
); | ||
} | ||
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AutoDirectionProvider.propTypes = propTypes; | ||
AutoDirectionProvider.defaultProps = defaultProps; | ||
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export default withDirection(AutoDirectionProvider); |
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import React from 'react'; | ||
import { expect } from 'chai'; | ||
import { shallow } from 'enzyme'; | ||
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import AutoDirectionProvider from '../src/AutoDirectionProvider'; | ||
import DirectionProvider from '../src/DirectionProvider'; | ||
import { DIRECTIONS, CHANNEL } from '../src/constants'; | ||
import mockBrcast from './mocks/brcast_mock'; | ||
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describe('<AutoDirectionProvider>', () => { | ||
it('renders a DirectionProvider', () => { | ||
const wrapper = shallow(( | ||
<AutoDirectionProvider text="a"> | ||
<div /> | ||
</AutoDirectionProvider> | ||
)).dive(); | ||
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expect(wrapper).to.have.exactly(1).descendants(DirectionProvider); | ||
}); | ||
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describe('direction prop', () => { | ||
it('is LTR correct for LTR strings', () => { | ||
const wrapper = shallow(( | ||
<AutoDirectionProvider text="a"> | ||
<div /> | ||
</AutoDirectionProvider> | ||
)).dive(); | ||
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expect(wrapper.find(DirectionProvider)).to.have.prop('direction', DIRECTIONS.LTR); | ||
}); | ||
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it('is RTL correct for RTL strings', () => { | ||
const wrapper = shallow(( | ||
<AutoDirectionProvider text="א"> | ||
<div /> | ||
</AutoDirectionProvider> | ||
)).dive(); | ||
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expect(wrapper.find(DirectionProvider)).to.have.prop('direction', DIRECTIONS.RTL); | ||
}); | ||
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it('is inherited from context for neutral strings', () => { | ||
const wrapper = shallow( | ||
( | ||
<AutoDirectionProvider text="1"> | ||
<div /> | ||
</AutoDirectionProvider> | ||
), { | ||
context: { | ||
[CHANNEL]: mockBrcast({ | ||
data: DIRECTIONS.RTL, | ||
}), | ||
}, | ||
}, | ||
).dive(); | ||
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expect(wrapper.find(DirectionProvider)).to.have.prop('direction', DIRECTIONS.RTL); | ||
}); | ||
}); | ||
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it('renders its children', () => { | ||
const children = <div>Foo</div>; | ||
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const wrapper = shallow(( | ||
<AutoDirectionProvider text="a"> | ||
{children} | ||
</AutoDirectionProvider> | ||
)).dive(); | ||
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expect(wrapper).to.contain(children); | ||
}); | ||
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it('passes the inline prop to DirectionProvider', () => { | ||
let wrapper = shallow(( | ||
<AutoDirectionProvider text="a"> | ||
<div /> | ||
</AutoDirectionProvider> | ||
)).dive(); | ||
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expect(wrapper.find(DirectionProvider)).to.have.prop('inline', false); | ||
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wrapper = shallow(( | ||
<AutoDirectionProvider text="a" inline> | ||
<div /> | ||
</AutoDirectionProvider> | ||
)).dive(); | ||
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expect(wrapper.find(DirectionProvider)).to.have.prop('inline', true); | ||
}); | ||
}); |