Merge remote-tracking branch 'origin/develop' into feat/add-message-edition-wysiwyg-composer

src/components/views/rooms/wysiwyg_composer/hooks/useInitialContent.ts

@@ -0,0 +1,67 @@
+/*
+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 { MatrixClient, Room } from "matrix-js-sdk/src/matrix";
+import { useMemo } from "react";
+
+import { useMatrixClientContext } from "../../../../../contexts/MatrixClientContext";
+import { useRoomContext } from "../../../../../contexts/RoomContext";
+import { parseEvent } from "../../../../../editor/deserialize";
+import { CommandPartCreator, Part } from "../../../../../editor/parts";
+import SettingsStore from "../../../../../settings/SettingsStore";
+import EditorStateTransfer from "../../../../../utils/EditorStateTransfer";
+
+function parseEditorStateTransfer(
+    editorStateTransfer: EditorStateTransfer,
+    room: Room,
+    mxClient: MatrixClient,
+): string {
+    const partCreator = new CommandPartCreator(room, mxClient);
+
+    let parts: Part[];
+    if (editorStateTransfer.hasEditorState()) {
+        // if restoring state from a previous editor,
+        // restore serialized parts from the state
+        parts = editorStateTransfer.getSerializedParts().map(p => partCreator.deserializePart(p));
+    } else {
+        // otherwise, either restore serialized parts from localStorage or parse the body of the event
+        // TODO local storage
+        // const restoredParts = this.restoreStoredEditorState(partCreator);
+
+        if (editorStateTransfer.getEvent().getContent().format === 'org.matrix.custom.html') {
+            return editorStateTransfer.getEvent().getContent().formatted_body || "";
+        }
+
+        parts = parseEvent(editorStateTransfer.getEvent(), partCreator, {
+            shouldEscape: SettingsStore.getValue("MessageComposerInput.useMarkdown"),
+        });
+    }
+
+    return parts.reduce((content, part) => content + part.text, '');
+    // Todo local storage
+    // this.saveStoredEditorState();
+}
+
+export function useInitialContent(editorStateTransfer: EditorStateTransfer) {
+    const roomContext = useRoomContext();
+    const mxClient = useMatrixClientContext();
+
+    return useMemo<string>(() => {
+        if (editorStateTransfer && roomContext.room) {
+            return parseEditorStateTransfer(editorStateTransfer, roomContext.room, mxClient);
+        }
+    }, [editorStateTransfer, roomContext, mxClient]);
+}