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node_modules/matrix-js-sdk/lib/extensible_events_v1/MessageEvent.js

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+import _objectSpread from "@babel/runtime/helpers/objectSpread2";
+import _defineProperty from "@babel/runtime/helpers/defineProperty";
+/*
+Copyright 2022 - 2023 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 { ExtensibleEvent } from "./ExtensibleEvent.js";
+import { isEventTypeSame, M_HTML, M_MESSAGE, M_TEXT } from "../@types/extensible_events.js";
+import { isOptionalAString, isProvided } from "./utilities.js";
+import { InvalidEventError } from "./InvalidEventError.js";
+
+/**
+ * Represents a message event. Message events are the simplest form of event with
+ * just text (optionally of different mimetypes, like HTML).
+ *
+ * Message events can additionally be an Emote or Notice, though typically those
+ * are represented as EmoteEvent and NoticeEvent respectively.
+ */
+export class MessageEvent extends ExtensibleEvent {
+  /**
+   * Creates a new MessageEvent from a pure format. Note that the event is
+   * *not* parsed here: it will be treated as a literal m.message primary
+   * typed event.
+   * @param wireFormat - The event.
+   */
+  constructor(wireFormat) {
+    super(wireFormat);
+    /**
+     * The default text for the event.
+     */
+    _defineProperty(this, "text", void 0);
+    /**
+     * The default HTML for the event, if provided.
+     */
+    _defineProperty(this, "html", void 0);
+    /**
+     * All the different renderings of the message. Note that this is the same
+     * format as an m.message body but may contain elements not found directly
+     * in the event content: this is because this is interpreted based off the
+     * other information available in the event.
+     */
+    _defineProperty(this, "renderings", void 0);
+    const mmessage = M_MESSAGE.findIn(this.wireContent);
+    const mtext = M_TEXT.findIn(this.wireContent);
+    const mhtml = M_HTML.findIn(this.wireContent);
+    if (isProvided(mmessage)) {
+      if (!Array.isArray(mmessage)) {
+        throw new InvalidEventError("m.message contents must be an array");
+      }
+      const text = mmessage.find(r => !isProvided(r.mimetype) || r.mimetype === "text/plain");
+      const html = mmessage.find(r => r.mimetype === "text/html");
+      if (!text) throw new InvalidEventError("m.message is missing a plain text representation");
+      this.text = text.body;
+      this.html = html?.body;
+      this.renderings = mmessage;
+    } else if (isOptionalAString(mtext)) {
+      this.text = mtext;
+      this.html = mhtml ?? undefined;
+      this.renderings = [{
+        body: mtext,
+        mimetype: "text/plain"
+      }];
+      if (this.html) {
+        this.renderings.push({
+          body: this.html,
+          mimetype: "text/html"
+        });
+      }
+    } else {
+      throw new InvalidEventError("Missing textual representation for event");
+    }
+  }
+  isEquivalentTo(primaryEventType) {
+    return isEventTypeSame(primaryEventType, M_MESSAGE);
+  }
+  serializeMMessageOnly() {
+    let messageRendering = {
+      [M_MESSAGE.name]: this.renderings
+    };
+
+    // Use the shorthand if it's just a simple text event
+    if (this.renderings.length === 1) {
+      const mime = this.renderings[0].mimetype;
+      if (mime === undefined || mime === "text/plain") {
+        messageRendering = {
+          [M_TEXT.name]: this.renderings[0].body
+        };
+      }
+    }
+    return messageRendering;
+  }
+  serialize() {
+    return {
+      type: "m.room.message",
+      content: _objectSpread(_objectSpread({}, this.serializeMMessageOnly()), {}, {
+        body: this.text,
+        msgtype: "m.text",
+        format: this.html ? "org.matrix.custom.html" : undefined,
+        formatted_body: this.html ?? undefined
+      })
+    };
+  }
+
+  /**
+   * Creates a new MessageEvent from text and HTML.
+   * @param text - The text.
+   * @param html - Optional HTML.
+   * @returns The representative message event.
+   */
+  static from(text, html) {
+    return new MessageEvent({
+      type: M_MESSAGE.name,
+      content: {
+        [M_TEXT.name]: text,
+        [M_HTML.name]: html
+      }
+    });
+  }
+}
+//# sourceMappingURL=MessageEvent.js.map