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RE: CTRL+BACKSPACE or its equivalent behavior when deleting block elements

From: Grisha Lyukshin <glyuk@microsoft.com>
Date: Tue, 16 Feb 2016 18:46:48 +0000
To: Johannes Wilm <mail@johanneswilm.org>
CC: Chaals McCathie Nevile <chaals@yandex-team.ru>, "public-editing-tf@w3.org" <public-editing-tf@w3.org>
Message-ID: <BY2PR03MB16017FC2734CFA02787D0C1ADA90@BY2PR03MB160.namprd03.prod.outlook.com>
I think it makes sense to have at the very least, very similar behavior before we even spec it.

I am open to discuss these behaviors now.

@Chrome/FF/Safari/Yandex what do you guys think about that? Would you be interested in cleaning up Delete behavior at the very least?

Also, Johannes, if there are other interop issues that deal with deletion that could be revived, perhaps we could tackle them as well.

As we discussed before, ExecCommands are complicated and there seems to be a split of opinions on whether they even need to be specced. And if we do decide to spec, I think, we will have few thoughts on how we can do.


From: johanneswilm@gmail.com [mailto:johanneswilm@gmail.com] On Behalf Of Johannes Wilm
Sent: Thursday, February 11, 2016 4:44 PM
To: Grisha Lyukshin <glyuk@microsoft.com>
Cc: Chaals McCathie Nevile <chaals@yandex-team.ru>; public-editing-tf@w3.org
Subject: Re: CTRL+BACKSPACE or its equivalent behavior when deleting block elements

On Thu, Feb 11, 2016 at 10:02 PM, Grisha Lyukshin <glyuk@microsoft.com<mailto:glyuk@microsoft.com>> wrote:

@Johannes: This came  up because we are revisiting  DELETE and FORWARD DELETE commands behavior in Edge. So I felt like bringing the findings to the editing community. I am not sure whether we should call this an attempt to standardize CE or not. At this point this is just pointing out non-interop and possibly, "buggy" behavior in browsers for different editing use cases.

Ok, got it. Yes, feel free to send in pull requests for the execCommand spec where a lot of this will currently be described.

My personal background on some of this: I and some other JS people filed bugs with Firefox and Chrome, some of which has to do with deletion of content, others with caret movement, etc. . At some stage we received the answer that these bugs would not be fixed as long as there was not a standard to work against.  That's how we ended up getting involved here. So I think several of us will be very interested in you guys making certain things (such as deletion in various contexts) behave the same in all the browsers even if we don't have a full spec. So let us know if this is now a general policy that either Edge or all the browsers are following.

@Chaals: In Edge, all of it is removed in 6 steps:

1st CTRL+BACKSPACE moves the caret at the end of the line above

2nd CTRL+BACKSPACE  removes the image

3rd CTRL+BACKSPACE does nothing

4th CTRL+BACKSPACE moves the caret at the end of the line above

5th CTRL+BACKSPACE removes sdsdsd

6th CTRL+BACKSPACE removes asdsad

The experience that I got in Chrome and FF on windows machine seems to differ from the one you described though:


1st CTRL+BACKSPACE removes the image and visually places the caret at the beginning of the very first line.

2nd CTRL+BACKSPACE  removes sdsdsd and places caret in front of asdsad

3rd CTRL+BACKSPACE removes asdsad

Chrome(48.0.2564.109 m)/Yandex:

1st CTRL+BACKSPACE removes the image and sdsdsd.

2nd CTRL+BACKSPACE  removes asdsad


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From: johanneswilm@gmail.com<mailto:johanneswilm@gmail.com> <johanneswilm@gmail.com<mailto:johanneswilm@gmail.com>> on behalf of Johannes Wilm <johannes@fiduswriter.org<mailto:johannes@fiduswriter.org>>
Sent: Thursday, February 11, 2016 5:13:42 AM
To: Chaals McCathie Nevile
Cc: public-editing-tf@w3.org<mailto:public-editing-tf@w3.org>
Subject: Re: CTRL+BACKSPACE or its equivalent behavior when deleting block elements


this sounds like a contenteditable=true issue. We originally moved on to work on other parts because the number of issues and inconsistencies of cE=true were so numerous that it did not seem solvable in the next decade.

But now it sounds as if there is some interest in trying to standardize it. Is that correct?

On Thu, Feb 11, 2016 at 12:01 PM, Chaals McCathie Nevile <chaals@yandex-team.ru<mailto:chaals@yandex-team.ru>> wrote:


On Thu, 11 Feb 2016 03:38:33 +0100, Grisha Lyukshin <glyuk@microsoft.com<mailto:glyuk@microsoft.com>> wrote:

Hello All,

There is a special behavior that is currently not interoperable between browsers for a specific use case below:

I think we should only delete one block element at a time when CTRL+BACKSPACE is pressed.

Chrome, FF and Edge all behave differently (sorry, I don't have Mac to test how Safari behaves).

Repro steps:


Place the caret in front of "def" and press CTRL+BACKSPACE

Opening this in Yandex.browser (blink-based), Safari and Firefox on mac, and pressing command-backspace, Firefox deleted everything in 4 steps, the other two in 5. (ctrl-backspace did nothing in FF and a normal backspace in the other two).

It seems Firefox deletes the paragraph when it removes the last thing in it, whereas the others remove the text node in a separate operation. What happened on windows? (I don't have a windows machine here to test...)



Charles McCathie Nevile - web standards - CTO Office, Yandex
 chaals@yandex-team.ru<mailto:chaals@yandex-team.ru> - - - Find more at http://yandex.com


Johannes Wilm

Fidus Writer



Johannes Wilm
tel: +1 (520) 399 8880
Received on Tuesday, 16 February 2016 18:47:25 UTC

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