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authorBrandon Millman <brandon.millman@gmail.com>2018-05-10 08:29:02 +0800
committerBrandon Millman <brandon.millman@gmail.com>2018-05-10 08:29:02 +0800
commitc64ad1af28ef116e210aafb3ea6ad2138361cd7c (patch)
tree0a7cb9a86a28c9ff42b2df9a3a68d85de1dd229d
parente83b056bd494e0e6a16fd0b9bfdb84bac2ab271d (diff)
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Add fallback image support to relayer grid tile
-rw-r--r--packages/website/ts/components/relayer_index/relayer_grid_tile.tsx38
1 files changed, 36 insertions, 2 deletions
diff --git a/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx b/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx
index 23c5da50b..d88a59d15 100644
--- a/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx
+++ b/packages/website/ts/components/relayer_index/relayer_grid_tile.tsx
@@ -62,14 +62,19 @@ const styles: Styles = {
},
};
+const FALLBACK_IMG_SRC = '/images/landing/hero_chip_image.png';
+
export const RelayerGridTile: React.StatelessComponent<RelayerGridTileProps> = (props: RelayerGridTileProps) => {
const link = props.relayerInfo.appUrl || props.relayerInfo.url;
- const headerImgUrl = props.relayerInfo.headerImgUrl || '/images/landing/hero_chip_image.png';
return (
<GridTile style={styles.root}>
<div style={styles.innerDiv}>
<a href={link} target="_blank" style={{ textDecoration: 'none' }}>
- <img src={headerImgUrl} style={styles.header} />
+ <ImgWithFallback
+ src={props.relayerInfo.headerImgUrl}
+ fallbackSrc={FALLBACK_IMG_SRC}
+ style={styles.header}
+ />
</a>
<div style={styles.body}>
<div className="py1" style={styles.relayerNameLabel}>
@@ -88,3 +93,32 @@ export const RelayerGridTile: React.StatelessComponent<RelayerGridTileProps> = (
</GridTile>
);
};
+
+interface ImgWithFallbackProps {
+ src?: string;
+ fallbackSrc: string;
+ style: React.CSSProperties;
+}
+interface ImgWithFallbackState {
+ imageLoadFailed: boolean;
+}
+class ImgWithFallback extends React.Component<ImgWithFallbackProps, ImgWithFallbackState> {
+ constructor(props: ImgWithFallbackProps) {
+ super(props);
+ this.state = {
+ imageLoadFailed: false,
+ };
+ }
+ public render() {
+ if (this.state.imageLoadFailed || _.isUndefined(this.props.src)) {
+ return <img src={this.props.fallbackSrc} style={this.props.style} />;
+ } else {
+ return <img src={this.props.src} onError={this._onError.bind(this)} style={this.props.style} />;
+ }
+ }
+ private _onError() {
+ this.setState({
+ imageLoadFailed: true,
+ });
+ }
+}