Move some message utils out to their own file (#31035)

* Move some message utils out to their own file

In another attempt at import cycle breaking

* Also add the file

* Move tests
This commit is contained in:
David Baker
2025-10-16 09:17:46 +01:00
committed by GitHub
parent c8f1c19517
commit 0468876aa0
8 changed files with 310 additions and 287 deletions

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@@ -53,7 +53,7 @@ import ErrorDialog from "./components/views/dialogs/ErrorDialog";
import UploadFailureDialog from "./components/views/dialogs/UploadFailureDialog";
import UploadConfirmDialog from "./components/views/dialogs/UploadConfirmDialog";
import { createThumbnail } from "./utils/image-media";
import { attachMentions, attachRelation } from "./components/views/rooms/SendMessageComposer";
import { attachMentions, attachRelation } from "./utils/messages.ts";
import { doMaybeLocalRoomAction } from "./utils/local-room";
import { SdkContextClass } from "./contexts/SDKContext";
import { blobIsAnimated } from "./utils/Image.ts";

View File

@@ -43,7 +43,7 @@ import { KeyBindingAction } from "../../../accessibility/KeyboardShortcuts";
import { PosthogAnalytics } from "../../../PosthogAnalytics";
import { editorRoomKey, editorStateKey } from "../../../Editing";
import type DocumentOffset from "../../../editor/offset";
import { attachMentions, attachRelation } from "./SendMessageComposer";
import { attachMentions, attachRelation } from "../../../utils/messages";
import { filterBoolean } from "../../../utils/arrays";
import { MatrixClientPeg } from "../../../MatrixClientPeg";

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@@ -8,10 +8,8 @@ Please see LICENSE files in the repository root for full details.
import React, { createRef, type KeyboardEvent, type SyntheticEvent } from "react";
import {
type IContent,
type MatrixEvent,
type IEventRelation,
type IMentions,
type Room,
EventType,
MsgType,
@@ -35,7 +33,7 @@ import {
unescapeMessage,
} from "../../../editor/serialize";
import BasicMessageComposer, { REGEX_EMOTICON } from "./BasicMessageComposer";
import { CommandPartCreator, type Part, type PartCreator, type SerializedPart, Type } from "../../../editor/parts";
import { CommandPartCreator, type Part, type PartCreator, type SerializedPart } from "../../../editor/parts";
import { findEditableEvent } from "../../../utils/EventUtils";
import SendHistoryManager from "../../../SendHistoryManager";
import { CommandCategories } from "../../../SlashCommands";
@@ -61,108 +59,11 @@ import { type Caret } from "../../../editor/caret";
import { type IDiff } from "../../../editor/diff";
import { getBlobSafeMimeType } from "../../../utils/blobs";
import { EMOJI_REGEX } from "../../../HtmlUtils";
import { attachMentions, attachRelation } from "../../../utils/messages";
// The prefix used when persisting editor drafts to localstorage.
export const EDITOR_STATE_STORAGE_PREFIX = "mx_cider_state_";
/**
* Build the mentions information based on the editor model (and any related events):
*
* 1. Search the model parts for room or user pills and fill in the mentions object.
* 2. If this is a reply to another event, include any user mentions from that
* (but do not include a room mention).
*
* @param sender - The Matrix ID of the user sending the event.
* @param content - The event content.
* @param model - The editor model to search for mentions, null if there is no editor.
* @param replyToEvent - The event being replied to or undefined if it is not a reply.
* @param editedContent - The content of the parent event being edited.
*/
export function attachMentions(
sender: string,
content: IContent,
model: EditorModel | null,
replyToEvent: MatrixEvent | undefined,
editedContent: IContent | null = null,
): void {
// We always attach the mentions even if the home server doesn't yet support
// intentional mentions. This is safe because m.mentions is an additive change
// that should simply be ignored by incapable home servers.
// The mentions property *always* gets included to disable legacy push rules.
const mentions: IMentions = (content["m.mentions"] = {});
const userMentions = new Set<string>();
let roomMention = false;
// If there's a reply, initialize the mentioned users as the sender of that event.
if (replyToEvent) {
userMentions.add(replyToEvent.sender!.userId);
}
// If user provided content is available, check to see if any users are mentioned.
if (model) {
// Add any mentioned users in the current content.
for (const part of model.parts) {
if (part.type === Type.UserPill) {
userMentions.add(part.resourceId);
} else if (part.type === Type.AtRoomPill) {
roomMention = true;
}
}
}
// Ensure the *current* user isn't listed in the mentioned users.
userMentions.delete(sender);
// Finally, if this event is editing a previous event, only include users who
// were not previously mentioned and a room mention if the previous event was
// not a room mention.
if (editedContent) {
// First, the new event content gets the *full* set of users.
const newContent = content["m.new_content"];
const newMentions: IMentions = (newContent["m.mentions"] = {});
// Only include the users/room if there is any content.
if (userMentions.size) {
newMentions.user_ids = [...userMentions];
}
if (roomMention) {
newMentions.room = true;
}
// Fetch the mentions from the original event and remove any previously
// mentioned users.
const prevMentions = editedContent["m.mentions"];
if (Array.isArray(prevMentions?.user_ids)) {
prevMentions!.user_ids.forEach((userId) => userMentions.delete(userId));
}
// If the original event mentioned the room, nothing to do here.
if (prevMentions?.room) {
roomMention = false;
}
}
// Only include the users/room if there is any content.
if (userMentions.size) {
mentions.user_ids = [...userMentions];
}
if (roomMention) {
mentions.room = true;
}
}
// Merges favouring the given relation
export function attachRelation(content: IContent, relation?: IEventRelation): void {
if (relation) {
content["m.relates_to"] = {
...(content["m.relates_to"] || {}),
...relation,
};
}
}
// exported for tests
export function createMessageContent(
sender: string,

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@@ -29,7 +29,7 @@ import InlineSpinner from "../elements/InlineSpinner";
import { PlaybackManager } from "../../../audio/PlaybackManager";
import { doMaybeLocalRoomAction } from "../../../utils/local-room";
import defaultDispatcher from "../../../dispatcher/dispatcher";
import { attachMentions, attachRelation } from "./SendMessageComposer";
import { attachMentions, attachRelation } from "../../../utils/messages";
import { addReplyToMessageContent } from "../../../utils/Reply";
import RoomContext from "../../../contexts/RoomContext";
import { type IUpload, type VoiceMessageRecording } from "../../../audio/VoiceMessageRecording";

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@@ -33,7 +33,7 @@ import { CommandCategories, getCommand } from "../../../../../SlashCommands";
import { runSlashCommand, shouldSendAnyway } from "../../../../../editor/commands";
import { Action } from "../../../../../dispatcher/actions";
import { addReplyToMessageContent } from "../../../../../utils/Reply";
import { attachRelation } from "../../SendMessageComposer";
import { attachRelation } from "../../../../../utils/messages";
export interface SendMessageParams {
mxClient: MatrixClient;

109
src/utils/messages.ts Normal file
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@@ -0,0 +1,109 @@
/*
Copyright 2025 New Vector Ltd.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
Please see LICENSE files in the repository root for full details.
*/
import { type MatrixEvent, type IContent, type IMentions, type IEventRelation } from "matrix-js-sdk/src/matrix";
import type EditorModel from "../editor/model";
import { Type } from "../editor/parts";
/**
* Build the mentions information based on the editor model (and any related events):
*
* 1. Search the model parts for room or user pills and fill in the mentions object.
* 2. If this is a reply to another event, include any user mentions from that
* (but do not include a room mention).
*
* @param sender - The Matrix ID of the user sending the event.
* @param content - The event content.
* @param model - The editor model to search for mentions, null if there is no editor.
* @param replyToEvent - The event being replied to or undefined if it is not a reply.
* @param editedContent - The content of the parent event being edited.
*/
export function attachMentions(
sender: string,
content: IContent,
model: EditorModel | null,
replyToEvent: MatrixEvent | undefined,
editedContent: IContent | null = null,
): void {
// We always attach the mentions even if the home server doesn't yet support
// intentional mentions. This is safe because m.mentions is an additive change
// that should simply be ignored by incapable home servers.
// The mentions property *always* gets included to disable legacy push rules.
const mentions: IMentions = (content["m.mentions"] = {});
const userMentions = new Set<string>();
let roomMention = false;
// If there's a reply, initialize the mentioned users as the sender of that event.
if (replyToEvent) {
userMentions.add(replyToEvent.sender!.userId);
}
// If user provided content is available, check to see if any users are mentioned.
if (model) {
// Add any mentioned users in the current content.
for (const part of model.parts) {
if (part.type === Type.UserPill) {
userMentions.add(part.resourceId);
} else if (part.type === Type.AtRoomPill) {
roomMention = true;
}
}
}
// Ensure the *current* user isn't listed in the mentioned users.
userMentions.delete(sender);
// Finally, if this event is editing a previous event, only include users who
// were not previously mentioned and a room mention if the previous event was
// not a room mention.
if (editedContent) {
// First, the new event content gets the *full* set of users.
const newContent = content["m.new_content"];
const newMentions: IMentions = (newContent["m.mentions"] = {});
// Only include the users/room if there is any content.
if (userMentions.size) {
newMentions.user_ids = [...userMentions];
}
if (roomMention) {
newMentions.room = true;
}
// Fetch the mentions from the original event and remove any previously
// mentioned users.
const prevMentions = editedContent["m.mentions"];
if (Array.isArray(prevMentions?.user_ids)) {
prevMentions!.user_ids.forEach((userId) => userMentions.delete(userId));
}
// If the original event mentioned the room, nothing to do here.
if (prevMentions?.room) {
roomMention = false;
}
}
// Only include the users/room if there is any content.
if (userMentions.size) {
mentions.user_ids = [...userMentions];
}
if (roomMention) {
mentions.room = true;
}
}
// Merges favouring the given relation
export function attachRelation(content: IContent, relation?: IEventRelation): void {
if (relation) {
content["m.relates_to"] = {
...(content["m.relates_to"] || {}),
...relation,
};
}
}

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@@ -8,12 +8,11 @@ Please see LICENSE files in the repository root for full details.
import React from "react";
import { fireEvent, render, waitFor } from "jest-matrix-react";
import { type IContent, type MatrixClient, MsgType } from "matrix-js-sdk/src/matrix";
import { type MatrixClient, MsgType } from "matrix-js-sdk/src/matrix";
import { mocked } from "jest-mock";
import userEvent from "@testing-library/user-event";
import SendMessageComposer, {
attachMentions,
createMessageContent,
isQuickReaction,
} from "../../../../../src/components/views/rooms/SendMessageComposer";
@@ -157,186 +156,6 @@ describe("<SendMessageComposer/>", () => {
});
});
describe("attachMentions", () => {
const partsCreator = createPartCreator();
it("no mentions", () => {
const model = new EditorModel([], partsCreator);
const content: IContent = {};
attachMentions("@alice:test", content, model, undefined);
expect(content).toEqual({
"m.mentions": {},
});
});
it("test user mentions", () => {
const model = new EditorModel([partsCreator.userPill("Bob", "@bob:test")], partsCreator);
const content: IContent = {};
attachMentions("@alice:test", content, model, undefined);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
});
});
it("test reply", () => {
// Replying to an event adds the sender to the list of mentioned users.
const model = new EditorModel([], partsCreator);
let replyToEvent = mkEvent({
type: "m.room.message",
user: "@bob:test",
room: "!abc:test",
content: { "m.mentions": {} },
event: true,
});
let content: IContent = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
});
// It no longer adds any other mentioned users
replyToEvent = mkEvent({
type: "m.room.message",
user: "@bob:test",
room: "!abc:test",
content: { "m.mentions": { user_ids: ["@alice:test", "@charlie:test"] } },
event: true,
});
content = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
});
});
it("test room mention", () => {
const model = new EditorModel([partsCreator.atRoomPill("@room")], partsCreator);
const content: IContent = {};
attachMentions("@alice:test", content, model, undefined);
expect(content).toEqual({
"m.mentions": { room: true },
});
});
it("test reply to room mention", () => {
// Replying to a room mention shouldn't automatically be a room mention.
const model = new EditorModel([], partsCreator);
const replyToEvent = mkEvent({
type: "m.room.message",
user: "@alice:test",
room: "!abc:test",
content: { "m.mentions": { room: true } },
event: true,
});
const content: IContent = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": {},
});
});
it("test broken mentions", () => {
// Replying to a room mention shouldn't automatically be a room mention.
const model = new EditorModel([], partsCreator);
const replyToEvent = mkEvent({
type: "m.room.message",
user: "@alice:test",
room: "!abc:test",
// @ts-ignore - Purposefully testing invalid data.
content: { "m.mentions": { user_ids: "@bob:test" } },
event: true,
});
const content: IContent = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": {},
});
});
describe("attachMentions with edit", () => {
it("no mentions", () => {
const model = new EditorModel([], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": {} },
});
});
it("mentions do not propagate", () => {
const model = new EditorModel([], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {
"m.mentions": { user_ids: ["@bob:test"], room: true },
};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": {} },
});
});
it("test user mentions", () => {
const model = new EditorModel([partsCreator.userPill("Bob", "@bob:test")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
"m.new_content": { "m.mentions": { user_ids: ["@bob:test"] } },
});
});
it("test prev user mentions", () => {
const model = new EditorModel([partsCreator.userPill("Bob", "@bob:test")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = { "m.mentions": { user_ids: ["@bob:test"] } };
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": { user_ids: ["@bob:test"] } },
});
});
it("test room mention", () => {
const model = new EditorModel([partsCreator.atRoomPill("@room")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": { room: true },
"m.new_content": { "m.mentions": { room: true } },
});
});
it("test prev room mention", () => {
const model = new EditorModel([partsCreator.atRoomPill("@room")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = { "m.mentions": { room: true } };
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": { room: true } },
});
});
it("test broken mentions", () => {
// Replying to a room mention shouldn't automatically be a room mention.
const model = new EditorModel([], partsCreator);
const content: IContent = { "m.new_content": {} };
// @ts-ignore - Purposefully testing invalid data.
const prevContent: IContent = { "m.mentions": { user_ids: "@bob:test" } };
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": {} },
});
});
});
});
describe("functions correctly mounted", () => {
const mockClient = createTestClient();
jest.spyOn(MatrixClientPeg, "get").mockReturnValue(mockClient);

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@@ -0,0 +1,194 @@
/*
Copyright 2024 New Vector Ltd.
Copyright 2020 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
Please see LICENSE files in the repository root for full details.
*/
import { type IContent } from "matrix-js-sdk/src/matrix";
import { attachMentions } from "../../../src/utils/messages";
import EditorModel from "../../../src/editor/model";
import { mkEvent } from "../../test-utils";
import { createPartCreator } from "../editor/mock";
describe("attachMentions", () => {
const partsCreator = createPartCreator();
it("no mentions", () => {
const model = new EditorModel([], partsCreator);
const content: IContent = {};
attachMentions("@alice:test", content, model, undefined);
expect(content).toEqual({
"m.mentions": {},
});
});
it("test user mentions", () => {
const model = new EditorModel([partsCreator.userPill("Bob", "@bob:test")], partsCreator);
const content: IContent = {};
attachMentions("@alice:test", content, model, undefined);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
});
});
it("test reply", () => {
// Replying to an event adds the sender to the list of mentioned users.
const model = new EditorModel([], partsCreator);
let replyToEvent = mkEvent({
type: "m.room.message",
user: "@bob:test",
room: "!abc:test",
content: { "m.mentions": {} },
event: true,
});
let content: IContent = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
});
// It no longer adds any other mentioned users
replyToEvent = mkEvent({
type: "m.room.message",
user: "@bob:test",
room: "!abc:test",
content: { "m.mentions": { user_ids: ["@alice:test", "@charlie:test"] } },
event: true,
});
content = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
});
});
it("test room mention", () => {
const model = new EditorModel([partsCreator.atRoomPill("@room")], partsCreator);
const content: IContent = {};
attachMentions("@alice:test", content, model, undefined);
expect(content).toEqual({
"m.mentions": { room: true },
});
});
it("test reply to room mention", () => {
// Replying to a room mention shouldn't automatically be a room mention.
const model = new EditorModel([], partsCreator);
const replyToEvent = mkEvent({
type: "m.room.message",
user: "@alice:test",
room: "!abc:test",
content: { "m.mentions": { room: true } },
event: true,
});
const content: IContent = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": {},
});
});
it("test broken mentions", () => {
// Replying to a room mention shouldn't automatically be a room mention.
const model = new EditorModel([], partsCreator);
const replyToEvent = mkEvent({
type: "m.room.message",
user: "@alice:test",
room: "!abc:test",
// @ts-ignore - Purposefully testing invalid data.
content: { "m.mentions": { user_ids: "@bob:test" } },
event: true,
});
const content: IContent = {};
attachMentions("@alice:test", content, model, replyToEvent);
expect(content).toEqual({
"m.mentions": {},
});
});
describe("attachMentions with edit", () => {
it("no mentions", () => {
const model = new EditorModel([], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": {} },
});
});
it("mentions do not propagate", () => {
const model = new EditorModel([], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {
"m.mentions": { user_ids: ["@bob:test"], room: true },
};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": {} },
});
});
it("test user mentions", () => {
const model = new EditorModel([partsCreator.userPill("Bob", "@bob:test")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": { user_ids: ["@bob:test"] },
"m.new_content": { "m.mentions": { user_ids: ["@bob:test"] } },
});
});
it("test prev user mentions", () => {
const model = new EditorModel([partsCreator.userPill("Bob", "@bob:test")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = { "m.mentions": { user_ids: ["@bob:test"] } };
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": { user_ids: ["@bob:test"] } },
});
});
it("test room mention", () => {
const model = new EditorModel([partsCreator.atRoomPill("@room")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = {};
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": { room: true },
"m.new_content": { "m.mentions": { room: true } },
});
});
it("test prev room mention", () => {
const model = new EditorModel([partsCreator.atRoomPill("@room")], partsCreator);
const content: IContent = { "m.new_content": {} };
const prevContent: IContent = { "m.mentions": { room: true } };
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": { room: true } },
});
});
it("test broken mentions", () => {
// Replying to a room mention shouldn't automatically be a room mention.
const model = new EditorModel([], partsCreator);
const content: IContent = { "m.new_content": {} };
// @ts-ignore - Purposefully testing invalid data.
const prevContent: IContent = { "m.mentions": { user_ids: "@bob:test" } };
attachMentions("@alice:test", content, model, undefined, prevContent);
expect(content).toEqual({
"m.mentions": {},
"m.new_content": { "m.mentions": {} },
});
});
});
});