mv element.io @types __mocks__/ debian docker module_system/ playwright res src test webapp Dockerfile .dockerignore .eslintignore .stylelintrc.cjs babel.config.cjs recorder-worklet-loader.cjs .modernizr.json components.json config.json config.sample.json package.json project.json tsconfig.json tsconfig.module_system.json jest.config.ts playwright.config.ts webpack.config.ts build_config.sample.yaml apps/web/

mkdir apps/web/scripts mv scripts/{cleanup.sh,ci_package.sh,copy-res.ts,deploy.py,package.sh} apps/web/scripts And a couple of gitignore tweaks Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
2026-02-24 15:43:58 +00:00
parent e7509c92a1
commit 91a3cb03c1
3408 changed files with 28 additions and 32 deletions
@@ -0,0 +1,67 @@
+/*
+Copyright 2024 New Vector Ltd.
+Copyright 2017 Aviral Dasgupta
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+import { clamp } from "lodash";
+import { type MatrixEvent } from "matrix-js-sdk/src/matrix";
+import { logger } from "matrix-js-sdk/src/logger";
+
+import { type SerializedPart } from "./editor/parts";
+import type EditorModel from "./editor/model";
+
+interface IHistoryItem {
+    parts: SerializedPart[];
+    replyEventId?: string;
+}
+
+export default class SendHistoryManager {
+    public history: Array<IHistoryItem> = [];
+    public prefix: string;
+    public lastIndex = 0; // used for indexing the storage
+    public currentIndex = 0; // used for indexing the loaded validated history Array
+
+    public constructor(roomId: string, prefix: string) {
+        this.prefix = prefix + roomId;
+
+        // TODO: Performance issues?
+        let index = 0;
+        let itemJSON;
+
+        while ((itemJSON = sessionStorage.getItem(`${this.prefix}[${index}]`))) {
+            try {
+                this.history.push(JSON.parse(itemJSON));
+            } catch (e) {
+                logger.warn("Throwing away unserialisable history", e);
+                break;
+            }
+            ++index;
+        }
+        this.lastIndex = this.history.length - 1;
+        // reset currentIndex to account for any unserialisable history
+        this.currentIndex = this.lastIndex + 1;
+    }
+
+    public static createItem(model: EditorModel, replyEvent?: MatrixEvent): IHistoryItem {
+        return {
+            parts: model.serializeParts(),
+            replyEventId: replyEvent ? replyEvent.getId() : undefined,
+        };
+    }
+
+    public save(editorModel: EditorModel, replyEvent?: MatrixEvent): void {
+        const item = SendHistoryManager.createItem(editorModel, replyEvent);
+        this.history.push(item);
+        this.currentIndex = this.history.length;
+        this.lastIndex += 1;
+        sessionStorage.setItem(`${this.prefix}[${this.lastIndex}]`, JSON.stringify(item));
+    }
+
+    public getItem(offset: number): IHistoryItem {
+        this.currentIndex = clamp(this.currentIndex + offset, 0, this.history.length - 1);
+        return this.history[this.currentIndex];
+    }
+}