First attempt to make the edition works in the WysiwygComposer

src/components/views/rooms/wysiwyg_composer/utils/editing.ts

@@ -0,0 +1,50 @@
+/*
+Copyright 2022 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 { EventStatus, MatrixClient } from "matrix-js-sdk/src/matrix";
+
+import { IRoomState } from "../../../../structures/RoomView";
+import dis from '../../../../../dispatcher/dispatcher';
+import { Action } from "../../../../../dispatcher/actions";
+import EditorStateTransfer from "../../../../../utils/EditorStateTransfer";
+
+export function endEditing(roomContext: IRoomState) {
+    // todo local storage
+    // localStorage.removeItem(this.editorRoomKey);
+    // localStorage.removeItem(this.editorStateKey);
+
+    // close the event editing and focus composer
+    dis.dispatch({
+        action: Action.EditEvent,
+        event: null,
+        timelineRenderingType: roomContext.timelineRenderingType,
+    });
+    dis.dispatch({
+        action: Action.FocusSendMessageComposer,
+        context: roomContext.timelineRenderingType,
+    });
+}
+
+export function cancelPreviousPendingEdit(mxClient: MatrixClient, editorStateTransfer: EditorStateTransfer) {
+    const originalEvent = editorStateTransfer.getEvent();
+    const previousEdit = originalEvent.replacingEvent();
+    if (previousEdit && (
+        previousEdit.status === EventStatus.QUEUED ||
+        previousEdit.status === EventStatus.NOT_SENT
+    )) {
+        mxClient.cancelPendingEvent(previousEdit);
+    }
+}