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MisterCavespider c403e2f1cf
Fixed colour transparency regex matching in project board sorting (#22091) (#22092)
As described in the linked issue (#22091), semi-transparent UI elements
would result in JS errors due to the fact that the CSS `backgroundColor`
element was being matched by the pattern
`^rgb\((\d+),\s*(\d+),\s*(\d+)\)$`, which does not take the alpha
channel into account.

I changed the pattern to `^rgba?\((\d+),\s*(\d+),\s*(\d+).*\)$`.
This new pattern accepts both `rgb` and `rgba` tuples, and ignores the
alpha channel (that little `.*` at the end) from the sorting criteria.
The reason why I chose to ignore alpha is because when it comes to
kanban colour sorting, only the hue is important; the order of the
panels should stay the same, even if some of them are transparent.

Alternative solutions were discussed in the bug report and are included
here for completeness:
1. Change the regex from ^rgb\((\d+),\s*(\d+),\s*(\d+)\)$ to
^rgba?\((\d+),\s*(\d+),\s*(\d+)(,\s*(\d+(\.\d+)?))?\)$ (alpha channel is
a float or NaN on 5th group) and include the alpha channel in the
sorting criteria.
2. Rethink on why you're reading colours out of the CSS in the first
place, then reformat this sorting procedure.

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2 years ago
..
components Fix heatmap first color being unused (#22157) 2 years ago
features Fixed colour transparency regex matching in project board sorting (#22091) (#22092) 2 years ago
markup Fix markdown anchor re-clicking (#21931) 2 years ago
modules Improvements for Content Copy (#21842) 2 years ago
standalone Add new JS linter rules (#17699) 3 years ago
test Switch from jest to vitest (#21444) 2 years ago
bootstrap.js Quick fixes monaco-editor error: "vs.editor.nullLanguage" (#21734) 2 years ago
index.js Improvements for Content Copy (#21842) 2 years ago
jquery.js Upgrade jQuery to 3.5.0, remove jQuery-Migrate, fix deprecations (#11055) 4 years ago
serviceworker.js Fix serviceworker output file and misc improvements (#11562) 4 years ago
svg.js Multiple improvements for comment edit diff (#21990) 2 years ago
svg.test.js Remove vitest globals (#21505) 2 years ago
utils.js Fixes #21895: standardize UTC tz for util tests (#21897) 2 years ago
utils.test.js Improvements for Content Copy (#21842) 2 years ago