Closed
Bug 265251
Opened 20 years ago
Closed 20 years ago
strange mouseout/mouseover events without relatedTarget fired on link when positioned div is positioned on top of an iframe
Categories
(Core :: DOM: UI Events & Focus Handling, defect)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: martin.honnen, Unassigned)
References
Details
Attachments
(1 file)
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2.22 KB,
text/html
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Details |
This bug is about mouseout/mouseover events without relatedTarget occuring while the mouse is over a link element in a div element that is positioned on top of an iframe. These two events shouldn't occur in my view and do not occur if a similar div with a link is simply positioned on top of the document body. In more detail: the test case I am going to upload contains two positioned div elements where the first div is positioned on top of an iframe, the second is positioned on top of the body element. When you slowly move the mouse from the top of the page over the second positioned div and out again the event flow is as follows: mouseover; target: [object HTMLDivElement]; relatedTarget: [object HTMLHtmlElement] mouseout; target: [object HTMLDivElement]; relatedTarget: http://javascript.faqts.com/ mouseover; target: http://javascript.faqts.com/; relatedTarget: [object HTMLDivElement] mouseout; target: http://javascript.faqts.com/; relatedTarget: [object HTMLDivElement] mouseover; target: [object HTMLDivElement]; relatedTarget: http://javascript.faqts.com/ mouseout; target: [object HTMLDivElement]; relatedTarget: [object HTMLHtmlElement] that is the events correctly fire in the sequence of the elements involved (<html>-><div>->link-><div>-><html>). When you do the same mouse movement over and out of the first div that is positioned on top of an iframe then two additional events occur (<html>-><div>->link->link->link-><div>-><html>): mouseover; target: [object HTMLDivElement]; relatedTarget: [object HTMLHtmlElement] mouseout; target: [object HTMLDivElement]; relatedTarget: http://javascript.faqts.com/ mouseover; target: http://javascript.faqts.com/; relatedTarget: [object HTMLDivElement] mouseout; target: http://javascript.faqts.com/; relatedTarget: null mouseover; target: http://javascript.faqts.com/; relatedTarget: null mouseout; target: http://javascript.faqts.com/; relatedTarget: [object HTMLDivElement] mouseover; target: [object HTMLDivElement]; relatedTarget: http://javascript.faqts.com/ mouseout; target: [object HTMLDivElement]; relatedTarget: [object HTMLHtmlElement] that is while the mouse is already over the link element a mouseout (with relatedTarget being null) and then a mouseover (with relatedTarget being null again) occurs. Those additional mouseout/mouseover events are causing problems for DHTML menu code for instance checking the relatedTarget to try to figure whether the mouse leaves a menu div. In my view it is a bug that those mouseout/mouseover events occur as the mouse is already over the link and not leaving the link or moving over a child element. Furthermore the event flow shouldn't differ between a div on top of an iframe and a div on top of the body element. Tested with Mozilla 1.8a and 1.7, both show the problem.
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Reporter | |
Comment 1•20 years ago
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Comment 2•20 years ago
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We have existing bugs on things that are on top of iframes...
Whiteboard: DUPEME
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Reporter | |
Comment 3•20 years ago
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Maybe a dupe of https://bugzilla.mozilla.org/show_bug.cgi?id=136527, I will need to check in detail when I have time.
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Comment 4•20 years ago
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WFM: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050412 Firefox/1.0+ I guess bug 125386 fixed this. Please reopen if you can reproduce with a trunk build.
Status: NEW → RESOLVED
Closed: 20 years ago
Resolution: --- → WORKSFORME
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Updated•6 years ago
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Component: Event Handling → User events and focus handling
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Description
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