CodeSampleX

示例

@tiptap/pm 3.11.0: redoNoScroll

已验证示例 — npm @tiptap/pm 3.11.0: redoNoScroll. contract 在 node 22 · linux debian/x64 · docker 上运行并通过： redoNoScroll returns false when history plugin is present…

sha256:1ea1d36c58a62b392c72d839130af3f7bef18e43ac35c399bdb3f0b160398941

本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。 提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。 MIT-0

执行证据

声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。

证据依据
签名契约通过
验证回执
1
构建过它的签名密钥
1
声明的环境 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

验证运行环境

环境 契约 阶段 运行日期
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-09-15

案例

HOW
目标
verify @tiptap/pm.redoNoScroll in pkg:npm/%40tiptap/pm@3.11.0
包
符号
  • @tiptap/pm.redoNoScroll
环境
node 22.23.2
创建时间
2026-09-15T05:10:29Z

契约

  1. redoNoScroll returns false when history plugin is present but redo stack is empty
  2. redoNoScroll returns false when history plugin is not attached to editor state
  3. redoNoScroll without dispatch returns true when redoable changes exist without modifying state
  4. redoNoScroll reapplies undone document modification and does not set scrolledIntoView on transaction
  5. redoNoScroll decrements redoDepth and increments undoDepth upon replaying transaction
  6. redoNoScroll generates a transaction recognized by isHistoryTransaction
  7. multiple undone edits can be sequentially reapplied with redoNoScroll until redoDepth reaches zero
  8. subsequent document edits clear the redo stack causing redoNoScroll to return false

文件

  • PROMPT.md
  • csx.json
  • index.mjs
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

下载源代码构件 (tar.gz)

源代码

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify @tiptap/pm.redoNoScroll in pkg:npm/%40tiptap/pm@3.11.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40tiptap/pm@3.11.0
Demonstrate these symbols/APIs:
  - @tiptap/pm.redoNoScroll

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:6f523190cec28738bbaebda5419954e41180a5afede700041b00f3b22110211c","contract":["redoNoScroll returns false when history plugin is present but redo stack is empty","redoNoScroll returns false when history plugin is not attached to editor state","redoNoScroll without dispatch returns true when redoable changes exist without modifying state","redoNoScroll reapplies undone document modification and does not set scrolledIntoView on transaction","redoNoScroll decrements redoDepth and increments undoDepth upon replaying transaction","redoNoScroll generates a transaction recognized by isHistoryTransaction","multiple undone edits can be sequentially reapplied with redoNoScroll until redoDepth reaches zero","subsequent document edits clear the redo stack causing redoNoScroll to return false"],"goal":"verify @tiptap/pm.redoNoScroll in pkg:npm/%40tiptap/pm@3.11.0","kind":"HOW","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"symbols":["@tiptap/pm.redoNoScroll"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"subject":"pkg:npm/%40tiptap/pm@3.11.0","symbols":["@tiptap/pm.redoNoScroll"],"verifierAdapter":"node-typescript@1"}
index.mjs
import {
  redoNoScroll,
  redo,
  undo,
  history,
  redoDepth,
  undoDepth,
  undoNoScroll,
  closeHistory,
  isHistoryTransaction
} from '@tiptap/pm/history';
import { EditorState, Plugin } from '@tiptap/pm/state';
import { schema } from '@tiptap/pm/schema-basic';

export {
  redoNoScroll,
  redo,
  undo,
  history,
  redoDepth,
  undoDepth,
  undoNoScroll,
  closeHistory,
  isHistoryTransaction,
  EditorState,
  Plugin,
  schema
};

export default redoNoScroll;
package-lock.json
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      }
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package.json
{
  "name": "sample-tiptap-pm-redonoscroll",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@tiptap/pm": "3.11.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @tiptap/pm.redoNoScroll in pkg:npm/%40tiptap/pm@3.11.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40tiptap/pm@3.11.0"
  ],
  "symbols": [
    "@tiptap/pm.redoNoScroll"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import {
  redoNoScroll,
  redo,
  undo,
  history,
  redoDepth,
  undoDepth,
  closeHistory,
  isHistoryTransaction,
  EditorState,
  Plugin,
  schema
} from '../index.mjs';

// 1. redoNoScroll returns false when history plugin is present but redo stack is empty
{
  const state = EditorState.create({ schema, plugins: [history()] });
  assert.equal(typeof redoNoScroll, 'function', 'redoNoScroll must be a function');
  assert.equal(redoNoScroll(state), false, 'redoNoScroll must return false on empty history');
  assert.equal(redoDepth(state), 0, 'redoDepth must be 0');
}

// 2. redoNoScroll returns false when history plugin is not attached to editor state
{
  const state = EditorState.create({ schema });
  assert.equal(redoNoScroll(state), false, 'redoNoScroll must return false when history plugin is absent');
}

// 3. redoNoScroll without dispatch returns true when redoable changes exist without modifying state
{
  let state = EditorState.create({ schema, plugins: [history()] });
  state = state.apply(state.tr.insertText('Dry run check'));
  undo(state, (tr) => { state = state.apply(tr); });

  const canRedo = redoNoScroll(state);
  assert.equal(canRedo, true, 'dry run redoNoScroll must return true');
  assert.equal(state.doc.textContent, '', 'dry run must not mutate document state');
}

// 4. redoNoScroll reapplies undone document modification and does not set scrolledIntoView on transaction
{
  let state = EditorState.create({ schema, plugins: [history()] });
  state = state.apply(state.tr.insertText('Scroll avoidance test'));
  undo(state, (tr) => { state = state.apply(tr); });
  assert.equal(state.doc.textContent, '', 'content must be empty after undo');

  let dispatchedTr = null;
  const success = redoNoScroll(state, (tr) => {
    dispatchedTr = tr;
    state = state.apply(tr);
  });
  assert.equal(success, true, 'redoNoScroll must return true when redoable changes exist');
  assert.ok(dispatchedTr != null, 'redoNoScroll must provide transaction to dispatch');
  assert.equal(dispatchedTr.scrolledIntoView, false, 'redoNoScroll must not set scrolledIntoView');
  assert.equal(state.doc.textContent, 'Scroll avoidance test', 'redoNoScroll must restore undone text');
}

// 5. redoNoScroll decrements redoDepth and increments undoDepth upon replaying transaction
{
  let state = EditorState.create({ schema, plugins: [history()] });
  state = state.apply(state.tr.insertText('Tracking depths'));
  assert.equal(undoDepth(state), 1);
  assert.equal(redoDepth(state), 0);

  undo(state, (tr) => { state = state.apply(tr); });
  assert.equal(undoDepth(state), 0);
  assert.equal(redoDepth(state), 1);

  redoNoScroll(state, (tr) => { state = state.apply(tr); });
  assert.equal(undoDepth(state), 1, 'undoDepth must increment back to 1');
  assert.equal(redoDepth(state), 0, 'redoDepth must decrement back to 0');
}

// 6. redoNoScroll generates a transaction recognized by isHistoryTransaction
{
  let state = EditorState.create({ schema, plugins: [history()] });
  state = state.apply(state.tr.insertText('Meta flag check'));
  undo(state, (tr) => { state = state.apply(tr); });

  let redoTr = null;
  redoNoScroll(state, (tr) => {
    redoTr = tr;
    state = state.apply(tr);
  });
  assert.ok(redoTr != null);
  assert.equal(isHistoryTransaction(redoTr), true, 'isHistoryTransaction must be true for redoNoScroll transaction');

  const regularTr = state.tr.insertText(' suffix');
  assert.equal(isHistoryTransaction(regularTr), false, 'isHistoryTransaction must be false for normal transaction');
}

// 7. multiple undone edits can be sequentially reapplied with redoNoScroll until redoDepth reaches zero
{
  let state = EditorState.create({ schema, plugins: [history()] });
  state = state.apply(state.tr.insertText('Part 1 '));
  state = state.apply(closeHistory(state.tr));
  state = state.apply(state.tr.insertText('Part 2 '));
  state = state.apply(closeHistory(state.tr));
  state = state.apply(state.tr.insertText('Part 3'));
  assert.equal(state.doc.textContent, 'Part 1 Part 2 Part 3');
  assert.equal(undoDepth(state), 3);

  undo(state, (tr) => { state = state.apply(tr); });
  undo(state, (tr) => { state = state.apply(tr); });
  assert.equal(state.doc.textContent, 'Part 1 ');
  assert.equal(redoDepth(state), 2);

  redoNoScroll(state, (tr) => { state = state.apply(tr); });
  assert.equal(state.doc.textContent, 'Part 1 Part 2 ');
  assert.equal(redoDepth(state), 1);

  redoNoScroll(state, (tr) => { state = state.apply(tr); });
  assert.equal(state.doc.textContent, 'Part 1 Part 2 Part 3');
  assert.equal(redoDepth(state), 0);
  assert.equal(redoNoScroll(state), false, 'redoNoScroll must return false when redo stack is exhausted');
}

// 8. subsequent document edits clear the redo stack causing redoNoScroll to return false
{
  let state = EditorState.create({ schema, plugins: [history()] });
  state = state.apply(state.tr.insertText('Base content'));
  undo(state, (tr) => { state = state.apply(tr); });
  assert.equal(redoDepth(state), 1);

  state = state.apply(state.tr.insertText('Divergent edit'));
  assert.equal(redoDepth(state), 0, 'new edit must clear redo stack');
  assert.equal(redoNoScroll(state), false, 'redoNoScroll must return false after redo stack is cleared');
}

console.log('All @tiptap/pm.redoNoScroll contract tests passed successfully.');

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