suspendHistory breaks activeHistoryState

[DBarranca]

Hi,

I've found that when you try to get the activeHistoryState after a suspendHistory call, you get the wrong one, namely the previous - e.g.

var doc = app.activeDocument;
$.writeln(doc.activeHistoryState); // [HistoryState DemoFile.jpg]
doc.suspendHistory ("TEST", "doc.activeLayer.name = 'Something'; doc.activeLayer.name = 'SomethingElse';");
$.writeln(doc.activeHistoryState); // [HistoryState DemoFile.jpg]
// shouldn't be [HistoryState TEST] ?

Why is it this way? Any workaround?

I've also tried using doc.historyStates.getByName('TEST'); but fires an error - it seems like the state hasn't been created.

Any help is really appreciated, thank you!

Davide Barranca

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www.davidebarranca.com

www.cs-extensions.com

[DBarranca · Accepted solution]

FYI,

Michel Mariani suggested this workaround:

var doc = app.activeDocument;  
$.writeln(doc.activeHistoryState); // [HistoryState DemoFile.jpg] 
doc.suspendHistory ("TEST", "doc.activeLayer.name = 'Something'; doc.activeLayer.name = 'SomethingElse';"); 
app.refresh();
$.writeln(doc.activeHistoryState); // [HistoryState TEST]  

It adds the usual, unwanted delay app.refresh adds, but at least the history state is the right one. Thanks Michel!

Davide Barranca

---

www.davidebarranca.com

www.cs-extensions.com

[Tom Ruark]

I've logged this issue. Only work around is the slow app.refresh unfortunately.

[JJMack]

Photoshop scripting also runs  into this problems and revert document to state previous to the execution of the script when a script move/resize tramsform a layer when there is an active selection.  I reported that bug years ago Adobe acknowledge the bug but does not care to fix it.  I saw at least one scripting thread where a user was backed up  three states they were bitten three times.

Photoshop: Script bug resize layer back document up one history state | Photoshop Family Customer Co...

Still seems to be in all release of Photoshop.

I believe Photoshop scripting expected  that something it did regarding the active selection would create a history state it need to remove but the history state  was not created because the script had suspended history state.

Adobe even assign a programmer to fix a bug I reported about Bad option added to CS4 when Adobe added the Adjustment panel.   The Programmed never removed the bad options, They are still in the Adjustment Panel fly-out menu.

It would be better if Adobe fixed acknowledged bugs not just log them..