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Modify luminance calculation and extract related functions into single files (#24586)

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Close #24508

Main changes:
As discussed in the issue

1. Change luminance calculation function to use [Relative
Luminance](https://www.w3.org/WAI/GL/wiki/Relative_luminance)
2. Move the luminance related functions into color.go/color.js
3. Add tests for both the files (Not sure if test cases are too many
now)

Before (tests included by `UseLightTextOnBackground` are labels started
with `##`):
https://try.gitea.io/HesterG/testrepo/labels

After:
<img width="1307" alt="Screen Shot 2023-05-08 at 13 37 55"
src="https://user-images.githubusercontent.com/17645053/236742562-fdfc3a4d-2fab-466b-9613-96f2bf96b4bc.png">
<img width="1289" alt="Screen Shot 2023-05-08 at 13 38 06"
src="https://user-images.githubusercontent.com/17645053/236742570-022db68e-cec0-43bb-888a-fc54f5332cc3.png">
<img width="1299" alt="Screen Shot 2023-05-08 at 13 38 20"
src="https://user-images.githubusercontent.com/17645053/236742572-9af1de45-fb7f-460b-828d-ba25fae20f51.png">

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Giteabot <teabot@gitea.io>
This commit is contained in:
Hester Gong 2023-05-10 19:19:03 +08:00 • committed by GitHub
parent 0ca5adee16
commit ea7954f069
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10 changed files with 238 additions and 81 deletions
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5
web_src/js/features/repo-projects.js
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@ -1,5 +1,5 @@
import $ from 'jquery';
import {useLightTextOnBackground} from '../utils.js';
import {useLightTextOnBackground, hexToRGBColor} from '../utils/color.js';
const {csrfToken} = window.config;
@ -190,7 +190,8 @@ export function initRepoProject() {
}
function setLabelColor(label, color) {
if (useLightTextOnBackground(color)) {
const [r, g, b] = hexToRGBColor(color);
if (useLightTextOnBackground(r, g, b)) {
label.removeClass('dark-label').addClass('light-label');
} else {
label.removeClass('light-label').addClass('dark-label');