279314 - click event occurs in certain cases when it shouldn't

Status: UNCONFIRMED

(Core :: DOM: Events, defect, P5)

Description

[Aurélien Maille]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a6) Gecko/20050111
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a6) Gecko/20050111

DOM3 Events have a paragraph about this cases:
"Note that, given the definition of a click, If one or more of the event types
{"http://www.w3.org/2001/xml-events", "mouseover"},
{"http://www.w3.org/2001/xml-events", "mousemove"}, and
{"http://www.w3.org/2001/xml-events", "mouseout"} occur between the press and
release of the pointing device button, the event type
{"http://www.w3.org/2001/xml-events", "click"} cannot occur."

Reproducible: Always

Actual Results:  
Click event dispatched even if mouseover, mouseout and/or mousemove occurs
between press and release of the button.

Expected Results:  
Click event should not be dispatched if mouseover, mouseout and/or mousemove
occurs between press and release of the button.

Comment 1

[Aurélien Maille]

Attachment: testcase

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I think click should occur if the movement is small enough that a click would
occur based on the user / operating system's settings.  (Many systems have an
amount of movement that is allowed between down and up for a click to still be
generated.)  I think the DOM spec should be revised to reflect this.

Comment 3

[Gérard Talbot]

I think the spec wants the click event to be distinguished and to be
distinguishible from [text] select event and the provided testcase useful.
select event in DOM 3 is no longer restricted to INPUT and TEXTAREA elements only.

Comment 4

[Gérard Talbot]

Opera 8 final release build 7561 renders the expected results.

Comment 5

[Timmy Brolin]

Probably same bug as https://bugzilla.mozilla.org/show_bug.cgi?id=319347
In the current firefox svg implementation, a "click" event is issued on every single "mouseup" event. Mouse movement between mousedown and mouseup is not evaluated at all. (See 319347 for additional testcases).

This causes big problems when a SVG file for example implements both dragging and clicking features, because a click will be issued every time something is dragged.

Opera and the Adobe plugin implements working click events. Firefox does not.

Comment 6

[Aurélien Maille]

Please confirm this bug or mark it "INVALID"

Comment 7

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

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