Fix sticky header in diff view (#23554) (#23568)

Backport #23554 by @silverwind

Ressurection of #23549.

Fix regression
https://github.com/go-gitea/gitea/pull/23513#issuecomment-1474356817
from #23271.
The previous sticky CSS did assume the content is always 2 rows, but
since that PR, it's single-row above 993px width.
Adjust the sticky offset to match and add a small tweak that hides
content behind the `border-radius`.

Single row:
<img width="1264" alt="Screenshot 2023-03-17 at 21 33 05"
src="https://user-images.githubusercontent.com/115237/226034050-a04b131d-fd3f-45c0-bc72-413738a59825.png">

Double row:
<img width="1243" alt="Screenshot 2023-03-17 at 21 32 53"
src="https://user-images.githubusercontent.com/115237/226034163-2f1c6aa9-fc72-432f-bc46-9a7119da8677.png">

Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
Giteabot 2023-03-18 20:29:16 -04:00 committed by GitHub
parent 1a97a84023
commit f5a98b0f5b
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@ -1611,12 +1611,14 @@
padding: 7px 0; padding: 7px 0;
background: var(--color-body); background: var(--color-body);
line-height: 30px; line-height: 30px;
height: 47px; /* match .ui.attached.header.diff-file-header.sticky-2nd-row */
} }
@media (max-width: 991px) { @media (max-width: 991px) {
.repository .diff-detail-box { .repository .diff-detail-box {
flex-direction: column; flex-direction: column;
align-items: flex-start; align-items: flex-start;
height: 77px; /* match .ui.attached.header.diff-file-header.sticky-2nd-row */
} }
} }
@ -1630,7 +1632,7 @@
position: sticky; position: sticky;
top: 0; top: 0;
z-index: 8; z-index: 8;
border-bottom: 1px solid var(--color-secondary); border-bottom: none;
padding-left: 2px; padding-left: 2px;
padding-right: 2px; padding-right: 2px;
margin-left: -1px; margin-left: -1px;
@ -3318,10 +3320,16 @@ td.blob-excerpt {
.ui.attached.header.diff-file-header.sticky-2nd-row { .ui.attached.header.diff-file-header.sticky-2nd-row {
position: sticky; position: sticky;
top: 77px; top: 47px; /* match .repository .diff-detail-box */
z-index: 7; z-index: 7;
} }
@media (max-width: 991px) {
.ui.attached.header.diff-file-header.sticky-2nd-row {
top: 77px; /* match .repository .diff-detail-box */
}
}
@media (max-width: 480px) { @media (max-width: 480px) {
.ui.attached.header.diff-file-header.sticky-2nd-row { .ui.attached.header.diff-file-header.sticky-2nd-row {
position: static; position: static;