Remove remaining reply fallbacks code (#28610)

* Remove remaining reply fallbacks code

as MSC2781 has been merged

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Update tests

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

---------

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/rooms/EditMessageComposer.tsx

@@ -43,25 +43,6 @@ import { attachMentions, attachRelation } from "./SendMessageComposer";
 import { filterBoolean } from "../../../utils/arrays";
 import { MatrixClientPeg } from "../../../MatrixClientPeg";
 
-function getHtmlReplyFallback(mxEvent: MatrixEvent): string {
-    const html = mxEvent.getContent().formatted_body;
-    if (!html) {
-        return "";
-    }
-    const rootNode = new DOMParser().parseFromString(html, "text/html").body;
-    const mxReply = rootNode.querySelector("mx-reply");
-    return (mxReply && mxReply.outerHTML) || "";
-}
-
-function getTextReplyFallback(mxEvent: MatrixEvent): string {
-    const body: string = mxEvent.getContent().body;
-    const lines = body.split("\n").map((l) => l.trim());
-    if (lines.length > 2 && lines[0].startsWith("> ") && lines[1].length === 0) {
-        return `${lines[0]}\n\n`;
-    }
-    return "";
-}
-
 // exported for tests
 export function createEditContent(
     model: EditorModel,
@@ -72,15 +53,6 @@ export function createEditContent(
     if (isEmote) {
         model = stripEmoteCommand(model);
     }
-    const isReply = !!editedEvent.replyEventId;
-    let plainPrefix = "";
-    let htmlPrefix = "";
-
-    if (isReply) {
-        plainPrefix = getTextReplyFallback(editedEvent);
-        htmlPrefix = getHtmlReplyFallback(editedEvent);
-    }
-
     const body = textSerialize(model);
 
     const newContent: RoomMessageEventContent = {
@@ -89,19 +61,18 @@ export function createEditContent(
     };
     const contentBody: RoomMessageTextEventContent & Omit<ReplacementEvent<RoomMessageEventContent>, "m.relates_to"> = {
         "msgtype": newContent.msgtype,
-        "body": `${plainPrefix} * ${body}`,
+        "body": `* ${body}`,
         "m.new_content": newContent,
     };
 
     const formattedBody = htmlSerializeIfNeeded(model, {
-        forceHTML: isReply,
         useMarkdown: SettingsStore.getValue("MessageComposerInput.useMarkdown"),
     });
     if (formattedBody) {
         newContent.format = "org.matrix.custom.html";
         newContent.formatted_body = formattedBody;
         contentBody.format = newContent.format;
-        contentBody.formatted_body = `${htmlPrefix} * ${formattedBody}`;
+        contentBody.formatted_body = `* ${formattedBody}`;
     }
 
     // Build the mentions properties for both the content and new_content.

src/components/views/rooms/SendMessageComposer.tsx

@@ -193,7 +193,6 @@ export function createMessageContent(
         body: body,
     };
     const formattedBody = htmlSerializeIfNeeded(model, {
-        forceHTML: !!replyToEvent,
         useMarkdown: SettingsStore.getValue("MessageComposerInput.useMarkdown"),
     });
     if (formattedBody) {

src/components/views/rooms/wysiwyg_composer/utils/createMessageContent.ts

@@ -27,28 +27,6 @@ function attachRelation(content: IContent, relation?: IEventRelation): void {
     }
 }
 
-function getHtmlReplyFallback(mxEvent: MatrixEvent): string {
-    const html = mxEvent.getContent().formatted_body;
-    if (!html) {
-        return "";
-    }
-    const rootNode = new DOMParser().parseFromString(html, "text/html").body;
-    const mxReply = rootNode.querySelector("mx-reply");
-    return (mxReply && mxReply.outerHTML) || "";
-}
-
-function getTextReplyFallback(mxEvent: MatrixEvent): string {
-    const body = mxEvent.getContent().body;
-    if (typeof body !== "string") {
-        return "";
-    }
-    const lines = body.split("\n").map((l) => l.trim());
-    if (lines.length > 2 && lines[0].startsWith("> ") && lines[1].length === 0) {
-        return `${lines[0]}\n\n`;
-    }
-    return "";
-}
-
 interface CreateMessageContentParams {
     relation?: IEventRelation;
     replyToEvent?: MatrixEvent;
@@ -63,8 +41,6 @@ export async function createMessageContent(
     { relation, replyToEvent, editedEvent }: CreateMessageContentParams,
 ): Promise<RoomMessageEventContent> {
     const isEditing = isMatrixEvent(editedEvent);
-    const isReply = isEditing ? Boolean(editedEvent.replyEventId) : isMatrixEvent(replyToEvent);
-    const isReplyAndEditing = isEditing && isReply;
 
     const isEmote = message.startsWith(EMOTE_PREFIX);
     if (isEmote) {
@@ -82,12 +58,10 @@ export async function createMessageContent(
     // if we're editing rich text, the message content is pure html
     // BUT if we're not, the message content will be plain text where we need to convert the mentions
     const body = isHTML ? await richToPlain(message, false) : convertPlainTextToBody(message);
-    const bodyPrefix = (isReplyAndEditing && getTextReplyFallback(editedEvent)) || "";
-    const formattedBodyPrefix = (isReplyAndEditing && getHtmlReplyFallback(editedEvent)) || "";
 
     const content = {
         msgtype: isEmote ? MsgType.Emote : MsgType.Text,
-        body: isEditing ? `${bodyPrefix} * ${body}` : body,
+        body: isEditing ? `* ${body}` : body,
     } as RoomMessageTextEventContent & ReplacementEvent<RoomMessageTextEventContent>;
 
     // TODO markdown support
@@ -97,7 +71,7 @@ export async function createMessageContent(
 
     if (formattedBody) {
         content.format = "org.matrix.custom.html";
-        content.formatted_body = isEditing ? `${formattedBodyPrefix} * ${formattedBody}` : formattedBody;
+        content.formatted_body = isEditing ? `* ${formattedBody}` : formattedBody;
     }
 
     if (isEditing) {