svg-layout-designer-react/src/Components/App/App.tsx

140 lines
3.6 KiB
TypeScript

import React, { Dispatch, SetStateAction, useEffect, useRef, useState } from 'react';
import { events as EVENTS } from '../../Events/AppEvents';
import { MainMenu } from '../MainMenu/MainMenu';
import { ContainerModel } from '../../Interfaces/IContainerModel';
import { Editor } from '../Editor/Editor';
import { IEditorState } from '../../Interfaces/IEditorState';
import { LoadState } from './Actions/Load';
import { LoadEditor, NewEditor } from './Actions/MenuActions';
import { DEFAULT_CONFIG, DEFAULT_MAINCONTAINER_PROPS } from '../../utils/default';
// App will never have props
// eslint-disable-next-line @typescript-eslint/no-empty-interface
interface IAppProps {
root: Element | Document
}
function UseHTTPGETStatePreloading(
isLoaded: boolean,
setEditorState: Dispatch<SetStateAction<IEditorState>>,
setLoaded: Dispatch<SetStateAction<boolean>>
): void {
useEffect(() => {
const queryString = window.location.search;
const urlParams = new URLSearchParams(queryString);
const state = urlParams.get('state');
if (state === null) {
return;
}
if (!isLoaded) {
fetch(state)
.then(
async(response) => await response.json(),
(error) => { throw new Error(error); }
)
.then((data: IEditorState) => {
LoadState(data, setEditorState, setLoaded);
}, (error) => { throw new Error(error); });
}
});
};
function UseCustomEvents(
root: Element | Document,
appRef: React.RefObject<HTMLDivElement>,
setEditor: (newState: IEditorState) => void,
setLoaded: (loaded: boolean) => void
): void {
useEffect(() => {
const funcs = new Map<string, () => void>();
for (const event of EVENTS) {
function Func(eventInitDict?: CustomEventInit): void {
return event.func(
root,
setEditor,
setLoaded,
eventInitDict
);
}
appRef.current?.addEventListener(event.name, Func);
funcs.set(event.name, Func);
}
return () => {
for (const event of EVENTS) {
const func = funcs.get(event.name);
if (func === undefined) {
continue;
}
appRef.current?.removeEventListener(event.name, func);
}
};
});
}
export function App(props: IAppProps): JSX.Element {
const [isLoaded, setLoaded] = useState<boolean>(false);
const appRef = useRef<HTMLDivElement>(null);
const defaultMainContainer = new ContainerModel(
null,
DEFAULT_MAINCONTAINER_PROPS
);
const [editorState, setEditorState] = useState<IEditorState>({
configuration: DEFAULT_CONFIG,
history: [{
lastAction: '',
mainContainer: defaultMainContainer,
selectedContainerId: defaultMainContainer.properties.id,
typeCounters: {},
symbols: new Map(),
selectedSymbolId: ''
}],
historyCurrentStep: 0
});
UseCustomEvents(
props.root,
appRef,
setEditorState,
setLoaded
);
UseHTTPGETStatePreloading(isLoaded, setEditorState, setLoaded);
if (isLoaded) {
return (
<div
ref={appRef}
className='App'
>
<Editor
root={props.root}
configuration={editorState.configuration}
history={editorState.history}
historyCurrentStep={editorState.historyCurrentStep}
/>
</div>
);
}
return (
<div
ref={appRef}
className='App mainmenu-bg'
>
<MainMenu
newEditor={() => NewEditor(
setEditorState, setLoaded
)}
loadEditor={(files: FileList | null) => LoadEditor(
files,
setEditorState,
setLoaded
)}
/>
</div>
);
};