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add stack-item-updated event to Y.UndoManager. implements #407

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This commit is contained in:
Kevin Jahns 2022-03-20 22:49:23 +01:00
parent 46fbce0de8
commit 4a06492fb1
2 changed files with 23 additions and 2 deletions
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18
README.md
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@ -873,6 +873,16 @@ undo- or the redo-stack.
</dd>
<b>
<code>
on('stack-item-updated', { stackItem: { meta: Map&lt;any,any&gt; }, type: 'undo'
| 'redo' })
</code>
</b>
<dd>
Register an event that is called when an existing <code>StackItem</code> is updated.
This happens when two changes happen within a "captureInterval".
</dd>
<b>
<code>
on('stack-item-popped', { stackItem: { meta: Map&lt;any,any&gt; }, type: 'undo'
| 'redo' })
</code>
@ -881,6 +891,14 @@ on('stack-item-popped', { stackItem: { meta: Map&lt;any,any&gt; }, type: 'undo'
Register an event that is called when a <code>StackItem</code> is popped from
the undo- or the redo-stack.
</dd>
<b>
<code>
on('stack-cleared', { undoStackCleared: boolean, redoStackCleared: boolean })
</code>
</b>
<dd>
Register an event that is called when the undo- and/or the redo-stack is cleared.
</dd>
</dl>
#### Example: Stop Capturing

7
src/utils/UndoManager.js
View File

@ -146,7 +146,7 @@ const popStackItem = (undoManager, stack, eventType) => {
* Fires 'stack-item-popped' event when a stack item was popped from either the
* undo- or the redo-stack. You may restore the saved stack information from `event.stackItem.meta`.
*
* @extends {Observable<'stack-item-added'|'stack-item-popped'|'stack-cleared'>}
* @extends {Observable<'stack-item-added'|'stack-item-popped'|'stack-cleared'|'stack-item-updated'>}
*/
export class UndoManager extends Observable {
/**
@ -223,8 +223,11 @@ export class UndoManager extends Observable {
keepItem(item, true)
}
})
const changeEvent = [{ stackItem: stack[stack.length - 1], origin: transaction.origin, type: undoing ? 'redo' : 'undo', changedParentTypes: transaction.changedParentTypes }, this]
if (didAdd) {
this.emit('stack-item-added', [{ stackItem: stack[stack.length - 1], origin: transaction.origin, type: undoing ? 'redo' : 'undo', changedParentTypes: transaction.changedParentTypes }, this])
this.emit('stack-item-added', changeEvent)
} else {
this.emit('stack-item-updated', changeEvent)
}
})
this.doc.on('destroy', () => {