Open
Bug 1327183
Opened 8 years ago
Updated 9 months ago
Scrolling in scrollable area continues when I move mouse outside of scrollable area while rotating mouse wheel
Categories
(Core :: Panning and Zooming, defect, P3)
Tracking
()
NEW
People
(Reporter: arni2033, Unassigned)
Details
(Whiteboard: [gfx-noted])
>>> My Info: Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open url [1]
2. Hover mouse over checkerboard area, start rotating mouse wheel down
3. Move mouse to the right from the vertical scrollbar of iframe (while you keep scrolling)
4. Continue scrolling
AR: The page doesn't scroll
ER: The page should scroll
STR_2: (reference of good behavior)
1. Open url [1]
2. Hover mouse over checkerboard area, start rotating mouse wheel down
3. Move mouse to the leftmost pixel of the page (while you keep scrolling)
AR: The page immediately scrolls down, just as expected
STR_3: (reference of good behavior)
1. Open url [2]
2. Hover mouse over checkerboard area, start rotating mouse wheel down
3. Move mouse to the right from the vertical scrollbar of iframe (while you keep scrolling)
AR: The page immediately scrolls down, just as expected
Note:
Yes, I'm aware that mouse scrolling stays connected to one scrollable area (s.a.) while I keep
rotating mouse wheel and keep mouse pointer inside SA_1 (even if I hover mouse over some inner
scroll area (SA_2)). But I'm also aware that if I move mouse outside of SA_1, scrolling looses
connection to SA_1. Usually. But not in this case. So, this bug report assumes that in Step 3
reporter moves mouse outside of original s.a., and therefore scrolling should stop.
[1]
data:text/html,<body style="height:100%"><script>
document.body.innerHTML+=`<iframe src='data:text/html,<div style="
height:200px;
width:4000px;
overflow:scroll;
background:gray;
"><img src="http://i1.ytimg.com/vi/60og9gwKh1o/0.jpg"><div style="
height:200000px;
width:4000px;
background-position: 10px -10px;
background-size: 64px 32px;
background-image: linear-gradient(-45deg, %2523eeeeee, %2523eeeeee 33%, %2523fbfbfb 33%, %2523fbfbfb 66%, %2523eeeeee 66%, %2523eeeeee);
"></div></div>'></iframe>`
</script>
[2]
data:text/html,
<body style="height:10000px">
<script>
document.body.innerHTML+=`<iframe src='data:text/html,<div style="
height:20000px;
width:4000px;
"></div>'></iframe>`
</script>
Component: Untriaged → Panning and Zooming
Product: Firefox → Core
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Comment 1•8 years ago
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I can sort of reproduce this. using STR_1 and STR_2. I think what might be happening is that when the mouse moves left it hits a different target than the content, or something. Not really sure but it warrants investigation.
OS: Unspecified → Windows
Priority: -- → P3
Whiteboard: [gfx-noted]
Version: Trunk → 53 Branch
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Updated•3 years ago
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Severity: normal → S3
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Description
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