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import * as React from 'react';
import "./MetadataEntryMenu.scss";
import { observer } from 'mobx-react';
import { observable, action, runInAction, trace } from 'mobx';
import { KeyValueBox } from './nodes/KeyValueBox';
import { Doc, Field } from '../../new_fields/Doc';
import * as Autosuggest from 'react-autosuggest';
export type DocLike = Doc | Doc[] | Promise<Doc> | Promise<Doc[]>;
export interface MetadataEntryProps {
docs: DocLike | (() => DocLike);
onError?: () => boolean;
suggestWithFunction?: boolean;
}
@observer
export class MetadataEntryMenu extends React.Component<MetadataEntryProps>{
@observable private _currentKey: string = "";
@observable private _currentValue: string = "";
@observable private suggestions: string[] = [];
private userModified = false;
private autosuggestRef = React.createRef<Autosuggest>();
@action
onKeyChange = (e: React.ChangeEvent, { newValue }: { newValue: string }) => {
this._currentKey = newValue;
if (!this.userModified) {
this.previewValue();
}
}
previewValue = async () => {
let field: Field | undefined | null = null;
let onProto: boolean = false;
let value: string | undefined = undefined;
let docs = this.props.docs;
if (typeof docs === "function") {
if (this.props.suggestWithFunction) {
docs = docs();
} else {
return;
}
}
docs = await docs;
if (docs instanceof Doc) {
await docs[this._currentKey];
value = Field.toKeyValueString(docs, this._currentKey);
} else {
for (const doc of docs) {
const v = await doc[this._currentKey];
onProto = onProto || !Object.keys(doc).includes(this._currentKey);
if (field === null) {
field = v;
} else if (v !== field) {
value = "multiple values";
}
}
}
if (value === undefined) {
if (field !== null && field !== undefined) {
value = (onProto ? "" : "= ") + Field.toScriptString(field);
} else {
value = "";
}
}
const s = value;
runInAction(() => this._currentValue = s);
}
@action
onValueChange = (e: React.ChangeEvent<HTMLInputElement>) => {
this._currentValue = e.target.value;
this.userModified = e.target.value.trim() !== "";
}
onValueKeyDown = async (e: React.KeyboardEvent) => {
if (e.key === "Enter") {
const script = KeyValueBox.CompileKVPScript(this._currentValue);
if (!script) return;
let doc = this.props.docs;
if (typeof doc === "function") {
doc = doc();
}
doc = await doc;
let success: boolean;
if (doc instanceof Doc) {
success = KeyValueBox.ApplyKVPScript(doc, this._currentKey, script);
} else {
success = doc.every(d => KeyValueBox.ApplyKVPScript(d, this._currentKey, script));
}
if (!success) {
if (this.props.onError) {
if (this.props.onError()) {
this.clearInputs();
}
} else {
this.clearInputs();
}
} else {
this.clearInputs();
}
}
}
@action
clearInputs = () => {
this._currentKey = "";
this._currentValue = "";
this.userModified = false;
if (this.autosuggestRef.current) {
const input: HTMLInputElement = (this.autosuggestRef.current as any).input;
input && input.focus();
}
}
getKeySuggestions = async (value: string): Promise<string[]> => {
value = value.toLowerCase();
let docs = this.props.docs;
if (typeof docs === "function") {
if (this.props.suggestWithFunction) {
docs = docs();
} else {
return [];
}
}
docs = await docs;
if (docs instanceof Doc) {
return Object.keys(docs).filter(key => key.toLowerCase().startsWith(value));
} else {
const keys = new Set<string>();
docs.forEach(doc => Doc.allKeys(doc).forEach(key => keys.add(key)));
return Array.from(keys).filter(key => key.toLowerCase().startsWith(value));
}
}
getSuggestionValue = (suggestion: string) => suggestion;
renderSuggestion = (suggestion: string) => {
return <p>{suggestion}</p>;
}
onSuggestionFetch = async ({ value }: { value: string }) => {
const sugg = await this.getKeySuggestions(value);
runInAction(() => {
this.suggestions = sugg;
});
}
@action
onSuggestionClear = () => {
this.suggestions = [];
}
render() {
return (
<div className="metadataEntry-outerDiv">
Key:
<Autosuggest inputProps={{ value: this._currentKey, onChange: this.onKeyChange }}
getSuggestionValue={this.getSuggestionValue}
suggestions={this.suggestions}
alwaysRenderSuggestions
renderSuggestion={this.renderSuggestion}
onSuggestionsFetchRequested={this.onSuggestionFetch}
onSuggestionsClearRequested={this.onSuggestionClear}
ref={this.autosuggestRef} />
Value:
<input className="metadataEntry-input" value={this._currentValue} onChange={this.onValueChange} onKeyDown={this.onValueKeyDown} />
</div>
);
}
}
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