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';
import EditorModel from '../../../editor/model';
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import {
htmlSerializeIfNeeded,
textSerialize,
containsEmote,
stripEmoteCommand,
unescapeMessage,
} from '../../../editor/serialize';
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import {CommandPartCreator} from '../../../editor/parts';
import {MatrixClient} from 'matrix-js-sdk';
import BasicMessageComposer from "./BasicMessageComposer";
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import ReplyPreview from "./ReplyPreview";
import RoomViewStore from '../../../stores/RoomViewStore';
import ReplyThread from "../elements/ReplyThread";
import {parseEvent} from '../../../editor/deserialize';
import {findEditableEvent} from '../../../utils/EventUtils';
import SendHistoryManager from "../../../SendHistoryManager";
import {processCommandInput} from '../../../SlashCommands';
import sdk from '../../../index';
import Modal from '../../../Modal';
import { _t } from '../../../languageHandler';
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import ContentMessages from '../../../ContentMessages';
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;
}
}
function createMessageContent(model, permalinkCreator) {
const isEmote = containsEmote(model);
if (isEmote) {
model = stripEmoteCommand(model);
}
model = unescapeMessage(model);
const repliedToEvent = RoomViewStore.getQuotingEvent();
const body = textSerialize(model);
const content = {
msgtype: isEmote ? "m.emote" : "m.text",
body: body,
};
const formattedBody = htmlSerializeIfNeeded(model, {forceHTML: !!repliedToEvent});
if (formattedBody) {
content.format = "org.matrix.custom.html";
content.formatted_body = formattedBody;
}
if (repliedToEvent) {
addReplyToMessageContent(content, repliedToEvent, permalinkCreator);
}
return content;
}
export default class SendMessageComposer extends React.Component {
static propTypes = {
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room: PropTypes.object.isRequired,
placeholder: PropTypes.string,
permalinkCreator: PropTypes.object.isRequired,
};
static contextTypes = {
matrixClient: PropTypes.instanceOf(MatrixClient).isRequired,
};
constructor(props, context) {
super(props, context);
this.model = null;
this._editorRef = null;
this.currentlyComposedEditorState = null;
}
_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 hasModifier = event.altKey || event.ctrlKey || event.metaKey || event.shiftKey;
if (event.key === "Enter" && !hasModifier) {
this._sendMessage();
event.preventDefault();
} else if (event.key === "ArrowUp") {
this.onVerticalArrow(event, true);
} else if (event.key === "ArrowDown") {
this.onVerticalArrow(event, false);
}
}
onVerticalArrow(e, up) {
if (e.ctrlKey || e.shiftKey || e.metaKey) return;
const shouldSelectHistory = e.altKey;
const shouldEditLastMessage = !e.altKey && up && !RoomViewStore.getQuotingEvent();
if (shouldSelectHistory) {
// Try select composer history
const selected = this.selectSendHistory(up);
if (selected) {
// We're selecting history, so prevent the key event from doing anything else
e.preventDefault();
}
} else if (shouldEditLastMessage) {
// 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
e.preventDefault();
dis.dispatch({
action: 'edit_event',
event: editEvent,
});
}
}
}
}
// 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 serializedParts = this.sendHistoryManager.getItem(delta);
if (serializedParts) {
this.model.reset(serializedParts);
this._editorRef.focus();
}
}
_isSlashCommand() {
const parts = this.model.parts;
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const firstPart = parts[0];
if (firstPart) {
if (firstPart.type === "command") {
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
if (firstPart.type === "plain" && firstPart.text.startsWith("/")) {
return true;
}
}
return false;
}
async _runSlashCommand() {
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;
}, "");
const cmd = processCommandInput(this.props.room.roomId, commandText);
if (cmd) {
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 ? "Server error" : "Command error";
Modal.createTrackedDialog(title, '', ErrorDialog, {
title: isServerError ? _t("Server error") : _t("Command error"),
description: error.message ? error.message : _t(
"Server unavailable, overloaded, or something else went wrong.",
),
});
} else {
console.log("Command success.");
}
}
}
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_sendMessage() {
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if (this.model.isEmpty) {
return;
}
if (!containsEmote(this.model) && this._isSlashCommand()) {
this._runSlashCommand();
} else {
const isReply = !!RoomViewStore.getQuotingEvent();
const {roomId} = this.props.room;
const content = createMessageContent(this.model, this.props.permalinkCreator);
this.context.matrixClient.sendMessage(roomId, content);
if (isReply) {
// 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,
});
}
}
this.sendHistoryManager.save(this.model);
// clear composer
this.model.reset([]);
this._editorRef.clearUndoHistory();
this._editorRef.focus();
this._clearStoredEditorState();
}
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componentDidMount() {
this._editorRef.getEditableRootNode().addEventListener("paste", this._onPaste, true);
}
componentWillUnmount() {
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dis.unregister(this.dispatcherRef);
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this._editorRef.getEditableRootNode().removeEventListener("paste", this._onPaste, true);
}
componentWillMount() {
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const partCreator = new CommandPartCreator(this.props.room, this.context.matrixClient);
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_composer_history_');
}
get _editorStateKey() {
return `cider_editor_state_${this.props.room.roomId}`;
}
_clearStoredEditorState() {
localStorage.removeItem(this._editorStateKey);
}
_restoreStoredEditorState(partCreator) {
const json = localStorage.getItem(this._editorStateKey);
if (json) {
const serializedParts = JSON.parse(json);
const parts = serializedParts.map(p => partCreator.deserializePart(p));
return parts;
}
}
_saveStoredEditorState = () => {
if (this.model.isEmpty) {
this._clearStoredEditorState();
} else {
localStorage.setItem(this._editorStateKey, JSON.stringify(this.model.serializeParts()));
}
}
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onAction = (payload) => {
switch (payload.action) {
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case 'reply_to_event':
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case 'focus_composer':
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;
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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);
const insertIndex = position.index + 1;
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;
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();
}
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_onPaste = (event) => {
const {clipboardData} = event;
if (clipboardData.files.length) {
// 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.matrixClient,
);
}
}
render() {
return (
<div className="mx_SendMessageComposer" onClick={this.focusComposer} onKeyDown={this._onKeyDown}>
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<div className="mx_SendMessageComposer_overlayWrapper">
<ReplyPreview permalinkCreator={this.props.permalinkCreator} />
</div>
<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}
onChange={this._saveStoredEditorState}
/>
</div>
);
}
}