Changes fetchThemeBundle helper to not need "this" parameter

Looks a bit ugly but this is temporary toward converting edit/home/new into functional components

client/homebrew/brewRenderer/brewRenderer.jsx

@@ -39,8 +39,8 @@ const BrewPage = (props)=>{
 		index    : 0,
 		...props
 	};
-	const pageRef = useRef(null);
-	const cleanText = safeHTML(`${props.contents}\n<div class="columnSplit"></div>\n`);
+	const pageRef   = useRef(null);
+	const cleanText = safeHTML(props.contents);
 
 	useEffect(()=>{
 		if(!pageRef.current) return;

client/homebrew/pages/editPage/editPage.jsx

@@ -97,7 +97,7 @@ const EditPage = createClass({
 			htmlErrors : Markdown.validate(prevState.brew.text)
 		}));
 
-		fetchThemeBundle(this, this.props.brew.renderer, this.props.brew.theme);
+		fetchThemeBundle((err)=>{this.setState({ error: err })}, (theme)=>{this.setState({ themeBundle: theme })}, this.props.brew.renderer, this.props.brew.theme);
 
 		document.addEventListener('keydown', this.handleControlKeys);
 	},
@@ -173,7 +173,7 @@ const EditPage = createClass({
 
 	handleMetaChange : function(metadata, field=undefined){
 		if(field == 'theme' || field == 'renderer')	// Fetch theme bundle only if theme or renderer was changed
-			fetchThemeBundle(this, metadata.renderer, metadata.theme);
+			fetchThemeBundle((err)=>{this.setState({ error: err })}, (theme)=>{this.setState({ themeBundle: theme })}, metadata.renderer, metadata.theme);
 
 		this.setState((prevState)=>({
 			brew : {

client/homebrew/pages/homePage/homePage.jsx

@@ -44,7 +44,7 @@ const HomePage = createClass({
 	editor : React.createRef(null),
 
 	componentDidMount : function() {
-		fetchThemeBundle(this, this.props.brew.renderer, this.props.brew.theme);
+		fetchThemeBundle((err)=>{this.setState({ error: err })}, (theme)=>{this.setState({ themeBundle: theme })}, this.props.brew.renderer, this.props.brew.theme);
 	},
 
 	handleSave : function(){

client/homebrew/pages/newPage/newPage.jsx

@@ -80,7 +80,7 @@ const NewPage = createClass({
 			saveGoogle : (saveStorage == 'GOOGLE-DRIVE' && this.state.saveGoogle)
 		});
 
-		fetchThemeBundle(this, this.props.brew.renderer, this.props.brew.theme);
+		fetchThemeBundle((err)=>{this.setState({ error: err })}, (theme)=>{this.setState({ themeBundle: theme })}, this.props.brew.renderer, this.props.brew.theme);
 
 		localStorage.setItem(BREWKEY, brew.text);
 		if(brew.style)
@@ -154,7 +154,7 @@ const NewPage = createClass({
 
 	handleMetaChange : function(metadata, field=undefined){
 		if(field == 'theme' || field == 'renderer')	// Fetch theme bundle only if theme or renderer was changed
-			fetchThemeBundle(this, metadata.renderer, metadata.theme);
+			fetchThemeBundle((err)=>{this.setState({ error: err })}, (theme)=>{this.setState({ themeBundle: theme })}, metadata.renderer, metadata.theme);
 
 		this.setState((prevState)=>({
 			brew : { ...prevState.brew, ...metadata },

client/homebrew/pages/sharePage/sharePage.jsx

@@ -17,15 +17,11 @@ const { printCurrentBrew, fetchThemeBundle } = require('../../../../shared/helpe
 const SharePage = (props)=>{
 	const { brew = DEFAULT_BREW_LOAD, disableMeta = false } = props;
 
-	const [state, setState] = useState({
-		themeBundle                : {},
-		currentBrewRendererPageNum : 1,
-	});
+	const [themeBundle,                setThemeBundle]                = useState({});
+	const [currentBrewRendererPageNum, setCurrentBrewRendererPageNum] = useState(1);
 
 	const handleBrewRendererPageChange = useCallback((pageNumber)=>{
-		setState((prevState)=>({
-			currentBrewRendererPageNum : pageNumber,
-			...prevState }));
+		setCurrentBrewRendererPageNum(pageNumber);
 	}, []);
 
 	const handleControlKeys = (e)=>{
@@ -40,11 +36,7 @@ const SharePage = (props)=>{
 
 	useEffect(()=>{
 		document.addEventListener('keydown', handleControlKeys);
-		fetchThemeBundle(
-			{ setState },
-			brew.renderer,
-			brew.theme
-		);
+		fetchThemeBundle(undefined, setThemeBundle, brew.renderer, brew.theme);
 
 		return ()=>{
 			document.removeEventListener('keydown', handleControlKeys);
@@ -114,9 +106,9 @@ const SharePage = (props)=>{
 					lang={brew.lang}
 					renderer={brew.renderer}
 					theme={brew.theme}
-					themeBundle={state.themeBundle}
+					themeBundle={themeBundle}
 					onPageChange={handleBrewRendererPageChange}
-					currentBrewRendererPageNum={state.currentBrewRendererPageNum}
+					currentBrewRendererPageNum={currentBrewRendererPageNum}
 					allowPrint={true}
 				/>
 			</div>

shared/helpers.js

@@ -116,27 +116,21 @@ const printCurrentBrew = ()=>{
 	}
 };
 
-const fetchThemeBundle = async (obj, renderer, theme)=>{
+const fetchThemeBundle = async (setError, setThemeBundle, renderer, theme)=>{
 	if(!renderer || !theme) return;
 	const res = await request
 			.get(`/api/theme/${renderer}/${theme}`)
 			.catch((err)=>{
-				obj.setState({ error: err });
+				setError(err)
 			});
 	if(!res) {
-		obj.setState((prevState)=>({
-			...prevState,
-			themeBundle : {}
-		}));
+		setThemeBundle({});
 		return;
 	}
 	const themeBundle = res.body;
 	themeBundle.joinedStyles = themeBundle.styles.map((style)=>`<style>${style}</style>`).join('\n\n');
-	obj.setState((prevState)=>({
-		...prevState,
-		themeBundle : themeBundle,
-		error       : null
-	}));
+	setThemeBundle(themeBundle);
+	setError(null);
 };
 
 const debugTextMismatch = (clientTextRaw, serverTextRaw, label) => {