Ask HN: Can someone explain how new Reddit's "undo" works as a desktop feature
In the new "New Reddit" force-unloaded last year, there have been many (unfortunate) changes to post edit mode; one of them is that if you have several images and extra spaces between them, deleting even one such extra space sometimes inadvertently deletes the image above such spaces, even if there were, say, 4 spaces between images and you only deleted the bottom-most. Or sometimes it will delete any text above the line you just deleted if the spaces were between text and an image.
Here's the weird part (or at least for me it is): I inadvertently discovered by mistake that if you go to your DESKTOP menu and select "Undo" ... about 7/10 times it actually "undoes" the deletion within Reddit's edit mode and reposts any images/text lost.
How is this possible, ie, how do desktop OS functions work while editing in a website?
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In other words, when desktop is selected, how does my desktop "know" that of all the other possibly relevant things open (for example, a notes or word processing app), that it's "Oh, you probably wanted to undo what you just typed into your browser while you were on a website in edit mode"??
Is it purely a function of "undo last thing done"?
Having said that, I just noticed that "it's you again".
As a side question, do you have a tab with my submission history perma-opened?
Because I find it odd that you of all people "just happened to stumble across this" 2 minutes after I posted it.