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// https://github.com/jpuri/react-draft-wysiwyg/issues/1460#issuecomment-2848529052
import { useCallback, useEffect, useMemo, useRef, useState } from "react";
import { EditorState, Modifier, RichUtils } from "draft-js";
import {
alignmentInnerDivSx,
buildBlockStyleFn,
documentHeadingSx,
} from "./blockStyle";
import { TableInsertControl, buildTableBlockRenderFunc } from "./TableBlock";
import { insertPastedContent, parsePastedHtml } from "./pastedContent";
import {
ContentState,
Editor,
SyntheticKeyboardEvent,
} from "react-draft-wysiwyg-next";
import "react-draft-wysiwyg-next/dist/react-draft-wysiwyg.css";
import { styled, useAppTheme } from "@theme/v2/Provider";
import GiveText from "@shared/Text/GiveText";
import { Stack } from "@mui/system";
import {
ListDashesIcon,
TextBIcon,
TextItalicIcon,
TextStrikethroughIcon,
TextUnderlineIcon,
} from "@phosphor-icons/react";
import LinkModal from "./LinkModal";
import IconWrapper from "./IconWrapper";
import { EditorMode, ICON_STATE, RichInputVariant } from "./richInput.types";
import { debounce } from "lodash";
import { Alignment } from "./Alignment";
import { HeadingsMenuSelector } from "./Headings";
import { FontSizeMenuSelector } from "./FontSize";
import { ColorSelector } from "./Colors";
import { OrderedList } from "./OrderedList";
import { ImageLink } from "./Image";
import "./TextEditor.css";
import { updateLastListItem } from "./FontSize/utils";
const MAX_TEXT_LENGTH = 5000;
function HFRichInput({
isDisabled,
value,
onChange,
options,
defaultValue,
maxLength = MAX_TEXT_LENGTH,
label = "Content (Optional)",
showCharCount = true,
variant = "form",
}: {
isDisabled?: boolean;
onChange?: (e: EditorState) => void;
value?: ContentState;
options?: string[];
defaultValue?: ContentState;
/** Character cap. Defaults to 5000 (suits short inputs); pass a larger value for documents. */
maxLength?: number;
/** Heading shown above the editor. Pass `null` to hide it. */
label?: string | null;
/** Whether to show the `n/maxLength` counter. */
showCharCount?: boolean;
variant?: RichInputVariant;
}) {
const { palette } = useAppTheme();
const emptyState = value
? EditorState.createWithContent(value)
: EditorState.createEmpty();
const [editorState, setEditorState] = useState(() => emptyState);
// Table edits (cell commits, add/remove row/column, delete, insert) must go
// through handleEditorChange — react-draft-wysiwyg's internal onChange
// silently drops updates while the selection sits on an atomic block, which
// is exactly where it lands around a table, freezing the editor. The render
// func is built once; the handlers read live values through refs.
const editorStateRef = useRef(editorState);
editorStateRef.current = editorState;
const handleEditorChangeRef = useRef<(state: EditorState) => void>();
const tableBlockRenderFunc = useMemo(
() =>
buildTableBlockRenderFunc({
getEditorState: () => editorStateRef.current,
onChange: (state) => handleEditorChangeRef.current?.(state),
}),
[],
);
const toggleCustomInlineStyle = (
editorState: EditorState,
styleType: string,
styleValue: string,
) => {
let nextEditorState = editorState;
const currentStyles = editorState.getCurrentInlineStyle();
// Remove only styles of the same type (e.g., fontSize) while keeping others (e.g., color)
currentStyles.forEach((style) => {
if (style) {
if (style.startsWith(`${styleType}-`)) {
nextEditorState = RichUtils.toggleInlineStyle(nextEditorState, style);
}
}
});
// Apply the new inline style while keeping the existing ones
nextEditorState = RichUtils.toggleInlineStyle(
nextEditorState,
`${styleType}-${styleValue}`,
);
return nextEditorState;
};
const prependedCustomActions = useMemo(
() =>
[
options?.includes("headings") && (
<HeadingsMenuSelector
key="headings"
editorState={editorState}
includeParagraphSmall={options?.includes("paragraph-small")}
/>
),
options?.includes("fontSize") && (
<FontSizeMenuSelector
toggleCustomInlineStyle={toggleCustomInlineStyle}
key="fontSize"
editorState={editorState}
editorMode={EditorMode.MULTI_LINE}
/>
),
<HorizontalSeparator key="separator-1" />,
options?.includes("alignments") && [
<Alignment editorState={editorState} value="left" key="left" />,
<Alignment editorState={editorState} value="center" key="center" />,
<Alignment editorState={editorState} value="right" key="right" />,
<HorizontalSeparator key="separator-2" />,
],
]
.filter(Boolean)
.flat(),
[options],
);
const apendedCustomActions = useMemo(
() =>
[
options?.includes("colors") && (
<ColorSelector
toggleCustomInlineStyle={toggleCustomInlineStyle}
editorState={editorState}
key="color-selector"
editorMode={EditorMode.MULTI_LINE}
/>
),
]
.filter(Boolean)
.flat(),
[options],
);
const editorStateLen = editorState
.getCurrentContent()
?.getPlainText("\u0001").length;
const remaining = editorState ? maxLength - editorStateLen : maxLength;
const debouncedOnChange = useCallback(
debounce((state: EditorState) => {
onChange && onChange(state);
}, 300),
[],
);
const handleEditorChange = (state: EditorState) => {
const contentState = state.getCurrentContent();
Iif (contentState.getPlainText().length > maxLength) {
return;
}
setEditorState(state);
debouncedOnChange(state);
};
handleEditorChangeRef.current = handleEditorChange;
const toggleInlineStyle = (style: string) => {
const newState = RichUtils.toggleInlineStyle(editorState, style);
handleEditorChange(newState);
};
const toggleList = () => {
updateLastListItem(editorState);
const newState = RichUtils.toggleBlockType(
editorState,
"unordered-list-item",
);
handleEditorChange(newState);
};
const getInlineStyleState = (style: string): ICON_STATE => {
Iif (isDisabled) return "disabled";
const currentInlineStyle = editorState.getCurrentInlineStyle();
return currentInlineStyle.has(style) ? "active" : "default";
};
const getListStyleState = (): ICON_STATE => {
Iif (isDisabled) return "disabled";
const currentBlockType = editorState
.getCurrentContent()
.getBlockForKey(editorState.getSelection().getStartKey())
.getType();
return currentBlockType === "unordered-list-item" ? "active" : "default";
};
const handleAddLink = (
url: string,
text: string,
openInNewWindow = false,
) => {
const targetOption = openInNewWindow ? "_blank" : "_self";
const contentState = editorState.getCurrentContent();
const selection = editorState.getSelection();
if (selection.isCollapsed()) {
//text is not selected
const contentWithLink = Modifier.replaceText(
contentState,
selection,
text || url,
editorState.getCurrentInlineStyle(),
contentState
.createEntity("LINK", "MUTABLE", { url, targetOption })
.getLastCreatedEntityKey(),
);
const newEditorState = EditorState.push(
editorState,
contentWithLink,
"apply-entity",
);
handleEditorChange(newEditorState);
} else {
const contentStateWithEntity = contentState.createEntity(
"LINK",
"MUTABLE",
{ url, targetOption },
);
const entityKey = contentStateWithEntity.getLastCreatedEntityKey();
const newContentState = Modifier.applyEntity(
contentState,
selection,
entityKey,
);
const newEditorState = EditorState.push(
editorState,
newContentState,
"apply-entity",
);
handleEditorChange(newEditorState);
}
};
const handleBeforeInput = (_input: string, _editorState: EditorState) => {
if (remaining === 0) {
return "handled";
} else {
return "not-handled";
}
};
// Only the "rich-paste" editor (legal documents) intercepts pastes, keeping
// the formatting it can model — heading levels, bold/italic/underline/
// strikethrough, alignment, lists, links and tables (pastedContent.ts).
// Everything else returns false and falls through to the default plain-text
// paste (stripPastedStyles). The change goes through the host pipeline, NOT
// the rdw onChange the library hands this callback — see the TableHost note.
const handlePastedText = (_text: string, html: string): boolean => {
if (!options?.includes("rich-paste") || !html) return false;
const content = parsePastedHtml(html, {
tables: options?.includes("table"),
});
Iif (!content) return false;
handleEditorChangeRef.current?.(
insertPastedContent(editorStateRef.current, content),
);
return true;
};
useEffect(() => {
Eif (!defaultValue) return;
const currentText = value?.getPlainText() ?? "";
const defaultText = defaultValue.getPlainText();
if (!currentText && defaultText) {
setEditorState(EditorState.createWithContent(defaultValue));
}
}, [defaultValue]);
const handleReturn = (
e: SyntheticKeyboardEvent,
editorState: EditorState,
) => {
const currentBlockKey = editorState.getSelection().getStartKey();
const currentBlock = editorState
.getCurrentContent()
.getBlockForKey(currentBlockKey);
if (
["ordered-list-item", "unordered-list-item"].includes(
currentBlock.getType(),
)
) {
updateLastListItem(editorState);
}
return false;
};
return (
<>
<Stack gap="9px">
{label ? (
<GiveText fontWeight={400} fontSize="14px" color="primary">
{label}
</GiveText>
) : null}
<Container variant={variant}>
{/* handleBeforeInput exists in draft-js but not passed on react-draft
Editor Props */}
{/* @ts-ignore (optional: suppress specific TypeScript error) */}
<Editor
handleReturn={handleReturn}
editorState={editorState}
// @ts-ignore blockStyleFn is a draft-js Editor prop not declared on react-draft-wysiwyg-next's EditorProps
blockStyleFn={buildBlockStyleFn({
paragraphSmall: options?.includes("paragraph-small"),
})}
// TABLE-entity atomic blocks (legal documents). IMAGE atomics
// still fall through to the library's own renderer. TableBlock.tsx
customBlockRenderFunc={tableBlockRenderFunc}
toolbarClassName="toolbarClassName"
wrapperClassName="wrapperClassName"
editorClassName="editorClassName"
onEditorStateChange={handleEditorChange}
handlePastedText={handlePastedText}
stripPastedStyles={true}
// @ts-ignore (optional: suppress specific TypeScript error)
handleBeforeInput={handleBeforeInput}
toolbar={{
options: [],
link: { options: [] },
inline: {
options: [],
},
list: { options: [] },
blockType: { options: [] },
image: { options: [], alignmentEnabled: false },
}}
toolbarCustomButtons={[
...(prependedCustomActions as any),
<IconWrapper
key="bold"
icon={TextBIcon}
onClick={() => toggleInlineStyle("BOLD")}
state={getInlineStyleState("BOLD")}
/>,
<IconWrapper
key="italic"
icon={TextItalicIcon}
onClick={() => toggleInlineStyle("ITALIC")}
state={getInlineStyleState("ITALIC")}
/>,
<IconWrapper
key="underline"
icon={TextUnderlineIcon}
onClick={() => toggleInlineStyle("UNDERLINE")}
state={getInlineStyleState("UNDERLINE")}
/>,
<IconWrapper
key="strikethrough"
icon={TextStrikethroughIcon}
state={getInlineStyleState("STRIKETHROUGH")}
onClick={() => toggleInlineStyle("STRIKETHROUGH")}
/>,
<HorizontalSeparator key="separator-3" />,
...apendedCustomActions,
options?.includes("ordered-items") && (
<OrderedList
key="ordered-items"
editorState={editorState}
handleEditorChange={handleEditorChange}
/>
),
options?.includes("table") && (
<TableInsertControl
key="table"
hostEditorState={editorState}
onInsert={handleEditorChange}
/>
),
<IconWrapper
state={getListStyleState()}
key="list"
icon={ListDashesIcon}
onClick={toggleList}
/>,
<LinkModal
editorState={editorState}
key="link"
onSubmit={handleAddLink}
/>,
options?.includes("image") && (
<ImageLink editorState={editorState} key="image" />
),
// Drop gated-out (falsy) entries — react-draft-wysiwyg-next
// cloneElement()s every custom button and throws on `false`.
].filter(Boolean)}
/>
</Container>
{showCharCount ? (
<GiveText fontSize="12px" sx={{ color: palette.text.secondary }}>
{editorStateLen}/{maxLength}
</GiveText>
) : null}
</Stack>
</>
);
}
// The document variant OMITS the form-input box constraints (border, fixed
// height, padding) and the toolbar's bottom margin instead of overriding them:
// consumer sx targeting the same classes sits at equal specificity, so any
// counter-declaration here would win or lose purely on emotion insertion
// order (child styles insert after the parent's sx on a fresh mount).
const Container = styled(Stack, {
shouldForwardProp: (prop) => prop !== "variant",
})<{ variant: RichInputVariant }>(({ theme, variant }) => ({
"& .editorClassName": {
...(variant === "form" && {
border: `1px solid ${theme.palette.border?.secondary}`,
borderRadius: "12px",
minHeight: "172px",
maxHeight: "172px",
padding: "12px",
}),
"& p, & ul, & ol, & h1, & h2, & h3, & h4, & h5, & h6": {
margin: 0,
padding: 0,
},
"& p, & h1, & h2, & h3, & h4, & h5, & h6": {
lineHeight: 1.3,
fontWeight: 400,
},
// Documents keep a real heading scale — the flat weight above is meant for
// the short form inputs, and would render a pasted agreement's headings at
// body weight. Declared after it so it wins at equal specificity.
...(variant === "document" && documentHeadingSx),
"& img": {
borderRadius: "8px",
},
"& .rdw-paragraph-small, & .rdw-paragraph-small *": {
fontSize: "12px",
},
// Draft.css (embedded in the lib stylesheet) puts `text-align: left`
// directly on the inner block div — see blockStyle.ts.
...alignmentInnerDivSx,
"& div": {
margin: "0",
lineHeight: 1.3,
marginBottom: 16,
},
"& li": {
listStyleType: "none",
marginLeft: "0",
"&::before": {
display: "none",
},
},
},
"& .toolbarClassName": {
borderRadius: "12px",
backgroundColor: theme.palette.surface?.secondary,
padding: "4px 8px",
...(variant === "form" && { marginBottom: 10 }),
"& .rdw-option-wrapper": {
backgroundColor: "transparent",
},
"& .rdw-option-wrapper:hover": {
boxShadow: "unset",
},
},
"& .DraftEditor-root": {
overflow: "hidden",
},
"& .editorClassName a": {
color: theme.palette.primitive?.blue[100],
fontSize: "14px",
fontWeight: 400,
},
"& .rdw-link-decorator-wrapper": {
position: "relative",
"& .rdw-link-decorator-icon": {
display: "none",
},
},
}));
const HorizontalSeparator = styled("div")(({ theme }) => ({
borderRight: `1px solid ${theme.palette.border?.secondary}`,
height: "18px",
margin: "auto 0",
}));
export default HFRichInput;
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