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import React from "react";
import Completion from "./console/Completion";
import Input from "./console//Input";
import styled from "styled-components";
import { useCompletions, useSelectCompletion } from "../completion/hooks";
import useDebounce from "../hooks/useDebounce";
import useAutoResize from "../hooks/useAutoResize";
import { CompletionProvider } from "../completion/provider";
import { useExecCommand, useHide } from "../app/hooks";
const COMPLETION_MAX_ITEMS = 33;
const ConsoleWrapper = styled.div`
border-top: 1px solid gray;
`;
interface Props {
initialInputValue: string;
}
const CommandPromptInner: React.FC<Props> = ({ initialInputValue }) => {
const hide = useHide();
const [inputValue, setInputValue] = React.useState(initialInputValue);
const debouncedValue = useDebounce(inputValue, 100);
const { completions } = useCompletions(debouncedValue);
const { select, currentValue, selectNext, selectPrev } =
useSelectCompletion();
const execCommand = useExecCommand();
useAutoResize();
const onBlur = () => {
hide();
};
const isCancelKey = React.useCallback(
(e: React.KeyboardEvent<HTMLInputElement>) =>
e.key === "Escape" ||
(e.ctrlKey && e.key === "[") ||
(e.ctrlKey && e.key === "c"),
[]
);
const isNextKey = React.useCallback(
(e: React.KeyboardEvent<HTMLInputElement>) =>
(!e.shiftKey && e.key === "Tab") || (e.ctrlKey && e.key === "n"),
[]
);
const isPrevKey = React.useCallback(
(e: React.KeyboardEvent<HTMLInputElement>) =>
(e.shiftKey && e.key === "Tab") || (e.ctrlKey && e.key === "p"),
[]
);
const isEnterKey = React.useCallback(
(e: React.KeyboardEvent<HTMLInputElement>) =>
e.key === "Enter" || (e.ctrlKey && e.key === "m"),
[]
);
const onKeyDown = (e: React.KeyboardEvent<HTMLInputElement>) => {
if (isCancelKey(e)) {
hide();
} else if (isEnterKey(e)) {
const value = (e.target as HTMLInputElement).value;
execCommand(value);
hide();
} else if (isNextKey(e)) {
selectNext();
} else if (isPrevKey(e)) {
selectPrev();
} else {
return;
}
e.stopPropagation();
e.preventDefault();
};
const onChange = (e: React.ChangeEvent<HTMLInputElement>) => {
const text = e.target.value;
setInputValue(text);
};
return (
<ConsoleWrapper>
<Completion
size={COMPLETION_MAX_ITEMS}
completions={completions}
select={select}
/>
<Input
prompt={":"}
onBlur={onBlur}
onKeyDown={onKeyDown}
onChange={onChange}
value={select == -1 ? inputValue : currentValue}
/>
</ConsoleWrapper>
);
};
const CommandPrompt: React.FC<Props> = ({ initialInputValue }) => (
<CompletionProvider initialInputValue={initialInputValue}>
<CommandPromptInner initialInputValue={initialInputValue} />
</CompletionProvider>
);
export default CommandPrompt;
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