1433463 - WebDriver:ElementSendKeys should not run unfocussing steps

Status: RESOLVED FIXED

Description

[Alexei Barantsev]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36

Steps to reproduce:

Let's suppose we have an input and perform two sendKeys commands in a sequence:

element.sendKeys("a");
element.sendKeys("b");

It fires the following chain of events:
focus keydown keypress keyup change blur focus keydown keypress keyup change blur

But according to the specification, it should not unfocus the input element between commands and should fire:
focus keydown keypress keyup keydown keypress keyup

and only the next command that moves the focus should cause change and blur events.

Here is the cite from IRC chat with Simon Stewart:
https://botbot.me/freenode/selenium/2018-01-26/?msg=96179433&page=2

<barancev> simonstewart: AutomatedTester: should focus be moved out of an input field after sendKeys command?
<barancev> I mean, *immediately* after sendKeys, as a part of this command execution flow
<simonstewart> barancev: focus should stay where it is, unless the last key pressed is to move the focus out of the element (like "tab"). I think. Lemme check the spec
<simonstewart> The spec's pretty clear that the unfocusing steps are not run
<simonstewart> https://w3c.github.io/webdriver/webdriver-spec.html#element-send-keys
<simonstewart> Step 9 is the one that sets the focus, but only if the element isn't already focused
<simonstewart> And nothing after that unsets the focus
<simonstewart> sendKeys won't fire the blur event
<simonstewart> But if you click, that changes the active element
<simonstewart> And that will cause a blur event to fire
<simonstewart> (that is, you need to move focus, just as you would with a real browser)

Comment 1

[Henrik Skupin (:whimboo)]

Should be a regression from bug 1432864.

Comment 2

[Alexei Barantsev]

Seems to be a regression issue, it used to be spec conformant yesterday.

Comment 3

[Andreas Tolfsen ❲:ato❳]

I would say the specification is inconsistent on this topic,
as other interaction commands such as Element Clear do run the
unfocussing steps.  I would expect a high-level command to either
unfocus or return focus to the previous focus area and the low-level
action commands to not alter focus in any way.

Filed https://github.com/w3c/webdriver/issues/1212 to clarify this.

Comment 4

[Henrik Skupin (:whimboo)]

Andreas, so this is a regression in Firefox 59 now. Should we consider to revert the behavior for now to not cause trouble for people? Not sure how many will be affected, but I don't see that we might reach a consensus on the spec issue until 59 gets released. What do you think?

Comment 5

[Andreas Tolfsen ❲:ato❳]

(In reply to Henrik Skupin (:whimboo) from comment #4)

> Andreas, so this is a regression in Firefox 59 now.

Well it’s not a regression if it is the correct behaviour (-:

> Should we consider to revert the behavior for now to not cause
> trouble for people? Not sure how many will be affected, but I
> don't see that we might reach a consensus on the spec issue until
> 59 gets released. What do you think?

I have pinged :automatedtester again on
https://github.com/w3c/webdriver/issues/1212.

Comment 6

[Andreas Tolfsen ❲:ato❳]

So the conclusion from https://github.com/w3c/webdriver/issues/1212
is that Element Clear _should_ run unfocussing steps, whereas
Element Send keys _should not_, for historical reasons.

Comment 7

[Andreas Tolfsen ❲:ato❳]

Created attachment 8953025 [details]
Bug 1433463 - WebDriver:ElementSendKeys should not run unfocussing steps.

According to the WebDriver standard the Element Send Keys command
should not run the unfocussing steps.  Not blurring the element
causes the DOM "change" event not to fire, but the specification
only expects the "input" event to fire.

The standard does, however, expect the Element Clear command to
run the unfocussing steps and to blur the element for historical reasons.

Review commit: https://reviewboard.mozilla.org/r/222302/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/222302/

Comment 8

[David Burns :automatedtester]

Comment on attachment 8953025 [details]
Bug 1433463 - WebDriver:ElementSendKeys should not run unfocussing steps.

https://reviewboard.mozilla.org/r/222302/#review228194

Comment 9

[Andreas Tolfsen ❲:ato❳]

Comment on attachment 8953025 [details]
Bug 1433463 - WebDriver:ElementSendKeys should not run unfocussing steps.

Review request updated; see interdiff: https://reviewboard.mozilla.org/r/222302/diff/1-2/

Comment 10

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/042d7adef0bd
WebDriver:ElementSendKeys should not run unfocussing steps. r=automatedtester

Comment 11

[Web Platform Test Sync Bot]

Created web-platform-tests PR https://github.com/w3c/web-platform-tests/pull/9631 for changes under testing/web-platform/tests

Comment 12

[Web Platform Test Sync Bot]

Upstream web-platform-tests status checks passed, PR will merge once commit reaches central.

Comment 13

[Andrei Ciure[:andrei_ciure_]]

https://hg.mozilla.org/mozilla-central/rev/042d7adef0bd

Comment 14

[Web Platform Test Sync Bot]

Upstream PR merged

Comment 15

[Andreas Tolfsen ❲:ato❳]

Sheriffs: Can we try uplifting this to beta?  If it doesn’t apply, let me know and I can rebase it.

Comment 16

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/releases/mozilla-beta/rev/c4fe0ca380a6

Comment 17

[Web Platform Test Sync Bot]

Upstream PR merged