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Commit 2e5a70e

Browse files
allow custom props on ParallaxBanner layers #81 
1 parent 23b1dfa commit 2e5a70e

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3 files changed

+122
-23
lines changed

3 files changed

+122
-23
lines changed

‎__tests__/ParallaxBanner.test.js‎

Lines changed: 27 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -134,4 +134,31 @@ describe('Expect the <ParallaxBanner> component', () => {
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135135
expect(childFn).toBeCalled();
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});
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138+
it('to render layers with custom props', () => {
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const tree = renderer
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.create(
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<ParallaxProvider>
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<ParallaxBanner
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layers={[
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{
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amount: 0.2,
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props: {
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style: {
148+
backgroundColor: 'red',
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},
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className: 'my-custom-class',
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id: 'my-id',
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},
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},
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]}
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/>
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</ParallaxProvider>,
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{
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createNodeMock,
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}
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)
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.toJSON();
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expect(tree).toMatchSnapshot();
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});
137164
});

‎__tests__/__snapshots__/ParallaxBanner.test.js.snap‎

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Original file line numberDiff line numberDiff line change
@@ -122,6 +122,61 @@ exports[`Expect the <ParallaxBanner> component to render image banners correctly
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</div>
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`;
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125+
exports[`Expect the <ParallaxBanner> component to render layers with custom props 1`] = `
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<div
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className="parallax-banner"
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style={
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Object {
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"height": "50vh",
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"overflow": "hidden",
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"position": "relative",
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"width": "100%",
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}
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}
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>
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<div
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className="parallax-outer"
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style={
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Object {
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"bottom": 0,
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"left": 0,
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"position": "absolute",
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"right": 0,
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"top": 0,
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}
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}
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>
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<div
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className="parallax-inner"
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style={
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Object {
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"bottom": 0,
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"left": 0,
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"position": "absolute",
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"right": 0,
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"top": 0,
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}
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}
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>
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<div
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className="parallax-banner-layer-0 my-custom-class"
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id="my-id"
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style={
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Object {
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"backgroundColor": "red",
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"bottom": "-20%",
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"left": 0,
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"position": "absolute",
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"right": 0,
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"top": "-20%",
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}
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}
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/>
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</div>
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</div>
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</div>
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`;
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exports[`Expect the <ParallaxBanner> component to render without expanded margins 1`] = `
126181
<div
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className="parallax-banner"

‎src/components/ParallaxBanner.js‎

Lines changed: 40 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -25,16 +25,42 @@ const ParallaxBanner = ({ children, className, layers, style, disabled }) => {
2525
>
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{layers.map(
2727
(
28-
{ image, amount, children: layerChildren, expanded = true },
28+
{
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amount,
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children: layerChildren,
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expanded = true,
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image,
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props = {},
34+
},
2935
i
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) => {
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// save props to be merged
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const layerStyle = props.style || {};
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const layerClass = props.className || '';
40+
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// remove from pass through props
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delete props.style;
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delete props.className;
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const layerClassMerged = `parallax-banner-layer-${i}${
46+
layerClass ? ` ${layerClass}` : ''
47+
}`;
48+
3149
// if this is an expanded layer overwrite the top/bottom styles with negative margins
3250
const expandedStyle = expanded
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? {
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top: Math.abs(amount) * 100 * -1 + '%',
3553
bottom: Math.abs(amount) * 100 * -1 + '%',
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}
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: {};
56+
// optional image styles
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const imageStyle = image
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? {
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backgroundImage: `url(${image})`,
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backgroundPosition: 'center',
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backgroundSize: 'cover',
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}
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: {};
3864

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return (
4066
<Parallax
@@ -44,28 +70,18 @@ const ParallaxBanner = ({ children, className, layers, style, disabled }) => {
4470
styleOuter={absoluteStyle}
4571
disabled={disabled}
4672
>
47-
{image ? (
48-
<div
49-
className={`parallax-banner-layer-${i}`}
50-
style={{
51-
backgroundImage: `url(${image})`,
52-
backgroundPosition: 'center',
53-
backgroundSize: 'cover',
54-
...absoluteStyle,
55-
...expandedStyle,
56-
}}
57-
/>
58-
) : (
59-
<div
60-
className={`parallax-banner-layer-${i}`}
61-
style={{
62-
...absoluteStyle,
63-
...expandedStyle,
64-
}}
65-
>
66-
{layerChildren}
67-
</div>
68-
)}
73+
<div
74+
className={layerClassMerged}
75+
style={{
76+
...imageStyle,
77+
...absoluteStyle,
78+
...expandedStyle,
79+
...layerStyle,
80+
}}
81+
{...props}
82+
>
83+
{layerChildren}
84+
</div>
6985
</Parallax>
7086
);
7187
}
@@ -89,6 +105,7 @@ ParallaxBanner.propTypes = {
89105
children: PropTypes.oneOfType([PropTypes.node, PropTypes.func]),
90106
expanded: PropTypes.bool,
91107
image: PropTypes.string,
108+
props: PropTypes.object,
92109
})
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),
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style: PropTypes.object,

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