107 lines
3.4 KiB
TypeScript
107 lines
3.4 KiB
TypeScript
/*
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Copyright 2019 New Vector Ltd
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Copyright 2019, 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Markdown from '../Markdown';
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import {makeGenericPermalink} from "../utils/permalinks/Permalinks";
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import EditorModel from "./model";
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export function mdSerialize(model: EditorModel) {
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return model.parts.reduce((html, part) => {
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switch (part.type) {
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case "newline":
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return html + "\n";
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case "plain":
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case "command":
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case "pill-candidate":
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case "at-room-pill":
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return html + part.text;
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case "room-pill":
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case "user-pill":
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return html + `[${part.text.replace(/[[\\\]]/g, c => "\\" + c)}](${makeGenericPermalink(part.resourceId)})`;
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}
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}, "");
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}
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export function htmlSerializeIfNeeded(model: EditorModel, {forceHTML = false} = {}) {
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const md = mdSerialize(model);
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const parser = new Markdown(md);
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if (!parser.isPlainText() || forceHTML) {
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return parser.toHTML();
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}
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// ensure removal of escape backslashes in non-Markdown messages
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if (md.indexOf("\\") > -1) {
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return parser.toPlaintext();
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}
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}
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export function textSerialize(model: EditorModel) {
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return model.parts.reduce((text, part) => {
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switch (part.type) {
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case "newline":
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return text + "\n";
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case "plain":
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case "command":
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case "pill-candidate":
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case "at-room-pill":
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return text + part.text;
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case "room-pill":
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case "user-pill":
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return text + `${part.text}`;
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}
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}, "");
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}
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export function containsEmote(model: EditorModel) {
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return startsWith(model, "/me ", false);
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}
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export function startsWith(model: EditorModel, prefix: string, caseSensitive = true) {
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const firstPart = model.parts[0];
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// part type will be "plain" while editing,
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// and "command" while composing a message.
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let text = firstPart && firstPart.text;
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if (!caseSensitive) {
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prefix = prefix.toLowerCase();
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text = text.toLowerCase();
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}
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return firstPart && (firstPart.type === "plain" || firstPart.type === "command") && text.startsWith(prefix);
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}
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export function stripEmoteCommand(model: EditorModel) {
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// trim "/me "
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return stripPrefix(model, "/me ");
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}
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export function stripPrefix(model: EditorModel, prefix: string) {
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model = model.clone();
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model.removeText({index: 0, offset: 0}, prefix.length);
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return model;
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}
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export function unescapeMessage(model: EditorModel) {
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const {parts} = model;
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if (parts.length) {
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const firstPart = parts[0];
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// only unescape \/ to / at start of editor
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if (firstPart.type === "plain" && firstPart.text.startsWith("\\/")) {
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model = model.clone();
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model.removeText({index: 0, offset: 0}, 1);
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}
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}
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return model;
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}
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