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Patch #43641
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Make the issues list header sticky on vertical scroll
Status:
New
Priority:
Normal
Assignee:
-
Category:
UI
Target version:
-
Start date:
Due date:
% Done:
0%
Estimated time:
Description
This patch implements a sticky header for the issue list when scrolling.
While currently limited to issues, this approach can be applied to other list views as well.
Limitations¶
The header will not be fixed under the following conditions: When a horizontal scrollbar is present, the sticky header becomes detached from the table body.
Since it is impossible to synchronize the widths of the header and the table in this state, the feature is disabled for:
- Narrow windows where a horizontal scrollbar is displayed.
- Mobile mode.
State Transition Table¶
| state | state | event | event | event | |
|---|---|---|---|---|---|
| Horizontal scrollbar | table and window | start | change state of a horizontal scrollbar | change state of overlapping table and window | |
| 1 | none | not overlapping | header: normal | →2 | set sticky →3 |
| 2 | displayed | not overlapping | header: normal | →1 | →4 |
| 3 | none | overlapping | header: sticky | set header normal →4 | set header normal →1 |
| 4 | displayed | overlapping | header: normal | set header sticky→3 | →2 |
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