implement before/afterAllTransactions

README.md

@@ -597,6 +597,10 @@ peers. You can apply document updates in any order and multiple times.
   <dd>Emitted before each transaction.</dd>
   <b><code>on('afterTransaction', function(Y.Transaction, Y.Doc):void)</code></b>
   <dd>Emitted after each transaction.</dd>
+  <b><code>on('beforeAllTransactions', function(Y.Doc):void)</code></b>
+  <dd>Transactions can be nested (e.g. when an event within a transaction calls another transaction). Emitted before the first transaction.</dd>
+  <b><code>on('afterAllTransactions', function(Y.Doc, Array&lt;Y.Transaction&gt;):void)</code></b>
+  <dd>Emitted after the last transaction is cleaned up.</dd>
 </dl>
 
 ### Document Updates

src/utils/Transaction.js

@@ -337,6 +337,7 @@ const cleanupTransactions = (transactionCleanups, i) => {
       }
       if (transactionCleanups.length <= i + 1) {
         doc._transactionCleanups = []
+        doc.emit('afterAllTransactions', [doc, transactionCleanups])
       } else {
         cleanupTransactions(transactionCleanups, i + 1)
       }
@@ -360,6 +361,9 @@ export const transact = (doc, f, origin = null, local = true) => {
     initialCall = true
     doc._transaction = new Transaction(doc, origin, local)
     transactionCleanups.push(doc._transaction)
+    if (transactionCleanups.length === 1) {
+      doc.emit('beforeAllTransactions', [doc])
+    }
     doc.emit('beforeTransaction', [doc._transaction, doc])
   }
   try {

tests/y-text.tests.js

@@ -293,7 +293,7 @@ const tryGc = () => {
  * @param {t.TestCase} tc
  */
 export const testLargeFragmentedDocument = tc => {
-  const itemsToInsert = 5000000
+  const itemsToInsert = 1000000
   let update = /** @type {any} */ (null)
   ;(() => {
     const doc1 = new Y.Doc()