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source_data.tsx
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source_data.tsx
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import * as React from "react";
import * as ReactDOM from "react-dom";
import styled from "styled-components";
import { CandidateSelectionState } from "./candidates";
import {
Candidate,
getServerFileUrl,
AssociatedEntryData
} from "./server_connection";
import { EventSubscription } from "fbemitter";
interface SourceDataComponentProps {
candidateSelectionState: CandidateSelectionState;
}
interface SourceDataComponentState {
selectedCandidate?: Candidate;
selectedAssociatedData?: AssociatedEntryData;
selectedAssociatedDataIndex?: number;
}
interface SourceDataListComponentProps {
associatedData?: AssociatedEntryData[] | null;
selectedIndex: number;
onSelect: (index: number) => void;
}
function getIdentifier(data: AssociatedEntryData) {
if (data.link != null) {
return `^${data.link}`;
}
return `${data.meta![0]}: ${data.meta![1]}`;
}
const SourceDataList = styled.div``;
const SourceDataListItem = styled.div<{ selected: boolean }>`
cursor: pointer;
background-color: ${p => (p.selected ? "#fcc" : "transparent")};
:hover {
text-decoration: underline;
}
`;
const SourceDataIdentifier = styled.span`
font-weight: bold;
`;
const SourceDataDescription = styled.span`
margin-left: 1em;
`;
class SourceDataListComponent extends React.PureComponent<
SourceDataListComponentProps
> {
render() {
const { selectedIndex } = this.props;
return (
<SourceDataList>
{(this.props.associatedData || []).map((data, i) => (
<SourceDataListItem
selected={i == selectedIndex}
key={i}
onClick={this.handleClick}
data-id={i}
>
<SourceDataIdentifier>{getIdentifier(data)}</SourceDataIdentifier>
<SourceDataDescription>{data.description}</SourceDataDescription>
</SourceDataListItem>
))}
</SourceDataList>
);
}
private handleClick = (event: React.MouseEvent) => {
const currentTarget = event.currentTarget as HTMLDivElement;
const index = parseInt(currentTarget.dataset.id!);
this.props.onSelect(index);
};
}
export class SourceDataComponent extends React.PureComponent<
SourceDataComponentProps,
SourceDataComponentState
> {
state: SourceDataComponentState = {};
static getDerivedStateFromProps(
props: SourceDataComponentProps,
state: SourceDataComponentState
) {
const {
selectedCandidate,
selectedAssociatedData,
selectedAssociatedDataIndex
} = props.candidateSelectionState;
return {
selectedCandidate,
selectedAssociatedData,
selectedAssociatedDataIndex
};
}
private subscription?: EventSubscription;
componentDidMount() {
this.subscription = this.props.candidateSelectionState.emitter.addListener(
"change",
() => {
const {
selectedCandidate,
selectedAssociatedData,
selectedAssociatedDataIndex
} = this.props.candidateSelectionState;
this.setState({
selectedCandidate,
selectedAssociatedData,
selectedAssociatedDataIndex
});
}
);
}
componentWillUnmount() {
this.subscription!.remove();
}
render() {
const { selectedCandidate, selectedAssociatedData: data } = this.state;
let dataElement: any;
if (data !== undefined) {
if (data.type.startsWith("image/")) {
dataElement = (
<img
style={{ maxWidth: "100%" }}
src={getServerFileUrl(data.path, data.type)}
/>
);
} else if (data.type === "text/html") {
dataElement = (
<iframe
style={{ flex: "1" }}
src={getServerFileUrl(data.path, data.type)}
sandbox=""
/>
);
} else if (data.type === "application/pdf") {
// Sandbox breaks pdf rendering.
dataElement = (
<iframe
style={{ flex: "1" }}
src={getServerFileUrl(data.path, data.type)}
/>
);
}
}
const associatedData =
selectedCandidate == null ? [] : selectedCandidate.associated_data;
return (
<div style={{ flex: "1", display: "flex", flexDirection: "column" }}>
<SourceDataListComponent
associatedData={associatedData}
selectedIndex={this.state.selectedAssociatedDataIndex || 0}
onSelect={this.handleSelectData}
/>
{dataElement}
</div>
);
}
private handleSelectData = (index: number) => {
this.props.candidateSelectionState.setSelectedAssociatedDataItem(index);
};
}