element-web/src/components/views/rooms/SendMessageComposer.js

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/*
Copyright 2019 New Vector Ltd
Copyright 2019 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import React from 'react';
import PropTypes from 'prop-types';
import dis from '../../../dispatcher/dispatcher';
import EditorModel from '../../../editor/model';
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import {
htmlSerializeIfNeeded,
textSerialize,
containsEmote,
stripEmoteCommand,
unescapeMessage,
startsWith,
stripPrefix,
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} from '../../../editor/serialize';
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import {CommandPartCreator} from '../../../editor/parts';
import BasicMessageComposer from "./BasicMessageComposer";
import ReplyThread from "../elements/ReplyThread";
import {parseEvent} from '../../../editor/deserialize';
import {findEditableEvent} from '../../../utils/EventUtils';
import SendHistoryManager from "../../../SendHistoryManager";
import {getCommand} from '../../../SlashCommands';
import * as sdk from '../../../index';
import Modal from '../../../Modal';
import {_t, _td} from '../../../languageHandler';
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import ContentMessages from '../../../ContentMessages';
import MatrixClientContext from "../../../contexts/MatrixClientContext";
import RateLimitedFunc from '../../../ratelimitedfunc';
import {Action} from "../../../dispatcher/actions";
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import {containsEmoji} from "../../../effects/utils";
import {CHAT_EFFECTS} from '../../../effects';
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import CountlyAnalytics from "../../../CountlyAnalytics";
import {MatrixClientPeg} from "../../../MatrixClientPeg";
import EMOJI_REGEX from 'emojibase-regex';
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import {getKeyBindingsManager, KeyAction, KeyBindingContext} from '../../../KeyBindingsManager';
function addReplyToMessageContent(content, repliedToEvent, permalinkCreator) {
const replyContent = ReplyThread.makeReplyMixIn(repliedToEvent);
Object.assign(content, replyContent);
// Part of Replies fallback support - prepend the text we're sending
// with the text we're replying to
const nestedReply = ReplyThread.getNestedReplyText(repliedToEvent, permalinkCreator);
if (nestedReply) {
if (content.formatted_body) {
content.formatted_body = nestedReply.html + content.formatted_body;
}
content.body = nestedReply.body + content.body;
}
}
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// exported for tests
export function createMessageContent(model, permalinkCreator, replyToEvent) {
const isEmote = containsEmote(model);
if (isEmote) {
model = stripEmoteCommand(model);
}
if (startsWith(model, "//")) {
model = stripPrefix(model, "/");
}
model = unescapeMessage(model);
const body = textSerialize(model);
const content = {
msgtype: isEmote ? "m.emote" : "m.text",
body: body,
};
const formattedBody = htmlSerializeIfNeeded(model, {forceHTML: !!replyToEvent});
if (formattedBody) {
content.format = "org.matrix.custom.html";
content.formatted_body = formattedBody;
}
if (replyToEvent) {
addReplyToMessageContent(content, replyToEvent, permalinkCreator);
}
return content;
}
// exported for tests
export function isQuickReaction(model) {
const parts = model.parts;
if (parts.length == 0) return false;
const text = textSerialize(model);
// shortcut takes the form "+:emoji:" or "+ :emoji:""
// can be in 1 or 2 parts
if (parts.length <= 2) {
const hasShortcut = text.startsWith("+") || text.startsWith("+ ");
const emojiMatch = text.match(EMOJI_REGEX);
if (hasShortcut && emojiMatch && emojiMatch.length == 1) {
return emojiMatch[0] === text.substring(1) ||
emojiMatch[0] === text.substring(2);
}
}
return false;
}
export default class SendMessageComposer extends React.Component {
static propTypes = {
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room: PropTypes.object.isRequired,
placeholder: PropTypes.string,
permalinkCreator: PropTypes.object.isRequired,
replyToEvent: PropTypes.object,
};
static contextType = MatrixClientContext;
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constructor(props, context) {
super(props, context);
this.model = null;
this._editorRef = null;
this.currentlyComposedEditorState = null;
if (this.context.isCryptoEnabled() && this.context.isRoomEncrypted(this.props.room.roomId)) {
this._prepareToEncrypt = new RateLimitedFunc(() => {
this.context.prepareToEncrypt(this.props.room);
}, 60000);
}
window.addEventListener("beforeunload", this._saveStoredEditorState);
}
_setEditorRef = ref => {
this._editorRef = ref;
};
_onKeyDown = (event) => {
// ignore any keypress while doing IME compositions
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if (this._editorRef.isComposing(event)) {
return;
}
const action = getKeyBindingsManager().getAction(KeyBindingContext.MessageComposer, event);
switch (action) {
case KeyAction.Send:
this._sendMessage();
event.preventDefault();
break;
case KeyAction.SelectPrevSendHistory:
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case KeyAction.SelectNextSendHistory: {
// Try select composer history
const selected = this.selectSendHistory(action === KeyAction.SelectPrevSendHistory);
if (selected) {
// We're selecting history, so prevent the key event from doing anything else
event.preventDefault();
}
break;
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}
case KeyAction.EditPrevMessage:
// selection must be collapsed and caret at start
if (this._editorRef.isSelectionCollapsed() && this._editorRef.isCaretAtStart()) {
const editEvent = findEditableEvent(this.props.room, false);
if (editEvent) {
// We're selecting history, so prevent the key event from doing anything else
event.preventDefault();
dis.dispatch({
action: 'edit_event',
event: editEvent,
});
}
}
break;
case KeyAction.CancelEditing:
dis.dispatch({
action: 'reply_to_event',
event: null,
});
break;
default:
if (this._prepareToEncrypt) {
// This needs to be last!
this._prepareToEncrypt();
}
}
};
// we keep sent messages/commands in a separate history (separate from undo history)
// so you can alt+up/down in them
selectSendHistory(up) {
const delta = up ? -1 : 1;
// True if we are not currently selecting history, but composing a message
if (this.sendHistoryManager.currentIndex === this.sendHistoryManager.history.length) {
// We can't go any further - there isn't any more history, so nop.
if (!up) {
return;
}
this.currentlyComposedEditorState = this.model.serializeParts();
} else if (this.sendHistoryManager.currentIndex + delta === this.sendHistoryManager.history.length) {
// True when we return to the message being composed currently
this.model.reset(this.currentlyComposedEditorState);
this.sendHistoryManager.currentIndex = this.sendHistoryManager.history.length;
return;
}
const {parts, replyEventId} = this.sendHistoryManager.getItem(delta);
dis.dispatch({
action: 'reply_to_event',
event: replyEventId ? this.props.room.findEventById(replyEventId) : null,
});
if (parts) {
this.model.reset(parts);
this._editorRef.focus();
}
}
_isSlashCommand() {
const parts = this.model.parts;
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const firstPart = parts[0];
if (firstPart) {
if (firstPart.type === "command" && firstPart.text.startsWith("/") && !firstPart.text.startsWith("//")) {
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return true;
}
// be extra resilient when somehow the AutocompleteWrapperModel or
// CommandPartCreator fails to insert a command part, so we don't send
// a command as a message
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if (firstPart.text.startsWith("/") && !firstPart.text.startsWith("//")
&& (firstPart.type === "plain" || firstPart.type === "pill-candidate")) {
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return true;
}
}
return false;
}
_sendQuickReaction() {
const timeline = this.props.room.getLiveTimeline();
const events = timeline.getEvents();
const reaction = this.model.parts[1].text;
for (let i = events.length - 1; i >= 0; i--) {
if (events[i].getType() === "m.room.message") {
let shouldReact = true;
const lastMessage = events[i];
const userId = MatrixClientPeg.get().getUserId();
const messageReactions = this.props.room.getUnfilteredTimelineSet()
.getRelationsForEvent(lastMessage.getId(), "m.annotation", "m.reaction");
// if we have already sent this reaction, don't redact but don't re-send
if (messageReactions) {
const myReactionEvents = messageReactions.getAnnotationsBySender()[userId] || [];
const myReactionKeys = [...myReactionEvents]
.filter(event => !event.isRedacted())
.map(event => event.getRelation().key);
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shouldReact = !myReactionKeys.includes(reaction);
}
if (shouldReact) {
MatrixClientPeg.get().sendEvent(lastMessage.getRoomId(), "m.reaction", {
"m.relates_to": {
"rel_type": "m.annotation",
"event_id": lastMessage.getId(),
"key": reaction,
},
});
dis.dispatch({action: "message_sent"});
}
break;
}
}
}
_getSlashCommand() {
const commandText = this.model.parts.reduce((text, part) => {
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// use mxid to textify user pills in a command
if (part.type === "user-pill") {
return text + part.resourceId;
}
return text + part.text;
}, "");
return [getCommand(this.props.room.roomId, commandText), commandText];
}
async _runSlashCommand(fn) {
const cmd = fn();
let error = cmd.error;
if (cmd.promise) {
try {
await cmd.promise;
} catch (err) {
error = err;
}
}
if (error) {
console.error("Command failure: %s", error);
const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
// assume the error is a server error when the command is async
const isServerError = !!cmd.promise;
const title = isServerError ? _td("Server error") : _td("Command error");
let errText;
if (typeof error === 'string') {
errText = error;
} else if (error.message) {
errText = error.message;
} else {
errText = _t("Server unavailable, overloaded, or something else went wrong.");
}
Modal.createTrackedDialog(title, '', ErrorDialog, {
title: _t(title),
description: errText,
});
} else {
console.log("Command success.");
}
}
async _sendMessage() {
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if (this.model.isEmpty) {
return;
}
let shouldSend = true;
if (!containsEmote(this.model) && this._isSlashCommand()) {
const [cmd, commandText] = this._getSlashCommand();
if (cmd) {
shouldSend = false;
this._runSlashCommand(cmd);
} else {
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// ask the user if their unknown command should be sent as a message
const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
const {finished} = Modal.createTrackedDialog("Unknown command", "", QuestionDialog, {
title: _t("Unknown Command"),
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description: <div>
<p>
{ _t("Unrecognised command: %(commandText)s", {commandText}) }
</p>
<p>
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{ _t("You can use <code>/help</code> to list available commands. " +
"Did you mean to send this as a message?", {}, {
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code: t => <code>{ t }</code>,
}) }
</p>
<p>
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{ _t("Hint: Begin your message with <code>//</code> to start it with a slash.", {}, {
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code: t => <code>{ t }</code>,
}) }
</p>
</div>,
button: _t('Send as message'),
});
const [sendAnyway] = await finished;
// if !sendAnyway bail to let the user edit the composer and try again
if (!sendAnyway) return;
}
}
if (isQuickReaction(this.model)) {
shouldSend = false;
this._sendQuickReaction();
}
const replyToEvent = this.props.replyToEvent;
if (shouldSend) {
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const startTime = CountlyAnalytics.getTimestamp();
const {roomId} = this.props.room;
const content = createMessageContent(this.model, this.props.permalinkCreator, replyToEvent);
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// don't bother sending an empty message
if (!content.body.trim()) return;
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const prom = this.context.sendMessage(roomId, content);
if (replyToEvent) {
// Clear reply_to_event as we put the message into the queue
// if the send fails, retry will handle resending.
dis.dispatch({
action: 'reply_to_event',
event: null,
});
}
dis.dispatch({action: "message_sent"});
CHAT_EFFECTS.forEach((effect) => {
if (containsEmoji(content, effect.emojis)) {
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dis.dispatch({action: `effects.${effect.command}`});
}
});
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CountlyAnalytics.instance.trackSendMessage(startTime, prom, roomId, false, !!replyToEvent, content);
}
this.sendHistoryManager.save(this.model, replyToEvent);
// clear composer
this.model.reset([]);
this._editorRef.clearUndoHistory();
this._editorRef.focus();
this._clearStoredEditorState();
dis.dispatch({action: "scroll_to_bottom"});
}
componentWillUnmount() {
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dis.unregister(this.dispatcherRef);
window.removeEventListener("beforeunload", this._saveStoredEditorState);
this._saveStoredEditorState();
}
// TODO: [REACT-WARNING] Move this to constructor
UNSAFE_componentWillMount() { // eslint-disable-line camelcase
const partCreator = new CommandPartCreator(this.props.room, this.context);
const parts = this._restoreStoredEditorState(partCreator) || [];
this.model = new EditorModel(parts, partCreator);
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this.dispatcherRef = dis.register(this.onAction);
this.sendHistoryManager = new SendHistoryManager(this.props.room.roomId, 'mx_cider_history_');
}
get _editorStateKey() {
return `mx_cider_state_${this.props.room.roomId}`;
}
_clearStoredEditorState() {
localStorage.removeItem(this._editorStateKey);
}
_restoreStoredEditorState(partCreator) {
const json = localStorage.getItem(this._editorStateKey);
if (json) {
try {
const {parts: serializedParts, replyEventId} = JSON.parse(json);
const parts = serializedParts.map(p => partCreator.deserializePart(p));
if (replyEventId) {
dis.dispatch({
action: 'reply_to_event',
event: this.props.room.findEventById(replyEventId),
});
}
return parts;
} catch (e) {
console.error(e);
}
}
}
_saveStoredEditorState = () => {
if (this.model.isEmpty) {
this._clearStoredEditorState();
} else {
const item = SendHistoryManager.createItem(this.model, this.props.replyToEvent);
localStorage.setItem(this._editorStateKey, JSON.stringify(item));
}
}
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onAction = (payload) => {
switch (payload.action) {
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case 'reply_to_event':
case Action.FocusComposer:
this._editorRef && this._editorRef.focus();
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break;
case 'insert_mention':
this._insertMention(payload.user_id);
break;
case 'quote':
this._insertQuotedMessage(payload.event);
break;
case 'insert_emoji':
this._insertEmoji(payload.emoji);
break;
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}
};
_insertMention(userId) {
const {model} = this;
const {partCreator} = model;
const member = this.props.room.getMember(userId);
const displayName = member ?
member.rawDisplayName : userId;
const caret = this._editorRef.getCaret();
const position = model.positionForOffset(caret.offset, caret.atNodeEnd);
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// index is -1 if there are no parts but we only care for if this would be the part in position 0
const insertIndex = position.index > 0 ? position.index : 0;
const parts = partCreator.createMentionParts(insertIndex, displayName, userId);
model.transform(() => {
const addedLen = model.insert(parts, position);
return model.positionForOffset(caret.offset + addedLen, true);
});
// refocus on composer, as we just clicked "Mention"
this._editorRef && this._editorRef.focus();
}
_insertQuotedMessage(event) {
const {model} = this;
const {partCreator} = model;
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const quoteParts = parseEvent(event, partCreator, {isQuotedMessage: true});
// add two newlines
quoteParts.push(partCreator.newline());
quoteParts.push(partCreator.newline());
model.transform(() => {
const addedLen = model.insert(quoteParts, model.positionForOffset(0));
return model.positionForOffset(addedLen, true);
});
// refocus on composer, as we just clicked "Quote"
this._editorRef && this._editorRef.focus();
}
_insertEmoji = (emoji) => {
const {model} = this;
const {partCreator} = model;
const caret = this._editorRef.getCaret();
const position = model.positionForOffset(caret.offset, caret.atNodeEnd);
model.transform(() => {
const addedLen = model.insert([partCreator.plain(emoji)], position);
return model.positionForOffset(caret.offset + addedLen, true);
});
};
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_onPaste = (event) => {
const {clipboardData} = event;
// Prioritize text on the clipboard over files as Office on macOS puts a bitmap
// in the clipboard as well as the content being copied.
if (clipboardData.files.length && !clipboardData.types.some(t => t === "text/plain")) {
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// This actually not so much for 'files' as such (at time of writing
// neither chrome nor firefox let you paste a plain file copied
// from Finder) but more images copied from a different website
// / word processor etc.
ContentMessages.sharedInstance().sendContentListToRoom(
Array.from(clipboardData.files), this.props.room.roomId, this.context,
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);
return true; // to skip internal onPaste handler
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}
}
render() {
return (
<div className="mx_SendMessageComposer" onClick={this.focusComposer} onKeyDown={this._onKeyDown}>
<BasicMessageComposer
ref={this._setEditorRef}
model={this.model}
room={this.props.room}
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label={this.props.placeholder}
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placeholder={this.props.placeholder}
onPaste={this._onPaste}
/>
</div>
);
}
}