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Fix typo, sourced different "complementary color" code

This commit is contained in:
Paul Konstantin Gerke 2022-03-05 12:24:53 +01:00
parent e5279f2d7a
commit b7e15e6da9
1 changed files with 32 additions and 15 deletions
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43
babybuddy/static_src/js/tags_editor.js
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@ -7,22 +7,39 @@
}
/**
* Attempt to compute a high-contrast color from a background color.
* Get the contrasting color for any hex color
*
* (This probably should be researched better because this was
* hand-crafted ad-hoc.)
* Sourced from: https://vanillajstoolkit.com/helpers/getcontrast/
* - Modified with slightly softer colors
* (c) 2021 Chris Ferdinandi, MIT License, https://gomakethings.com
* Derived from work by Brian Suda, https://24ways.org/2010/calculating-color-contrast/
* @param {String} A hexcolor value
* @return {String} The contrasting color (black or white)
*/
function computeComplementaryColor(colorStr) {
let avgColor = 0.0;
avgColor += hexParse(colorStr.substring(1, 3)) * -0.5;
avgColor += hexParse(colorStr.substring(3, 5)) * 1.5;
avgColor += hexParse(colorStr.substring(5, 7)) * 1.0;
function computeComplementaryColor(hexcolor) {
if (avgColor > 200) {
return "#101010";
} else {
return "#E0E0E0";
// If a leading # is provided, remove it
if (hexcolor.slice(0, 1) === '#') {
hexcolor = hexcolor.slice(1);
}
// If a three-character hexcode, make six-character
if (hexcolor.length === 3) {
hexcolor = hexcolor.split('').map(function (hex) {
return hex + hex;
}).join('');
}
// Convert to RGB value
let r = parseInt(hexcolor.substr(0,2),16);
let g = parseInt(hexcolor.substr(2,2),16);
let b = parseInt(hexcolor.substr(4,2),16);
// Get YIQ ratio
let yiq = ((r * 299) + (g * 587) + (b * 114)) / 1000;
// Check contrast
return (yiq >= 128) ? '#101010' : '#EFEFEF';
}
// CSRF token should always be present because it is auto-included with
@ -135,7 +152,7 @@
* Handler for the edit field allowing to dynamically create new tags.
*
* Handles user inputs for the editor. Calls the 'onInsertNewTag' callback
* when the craetion of a new tag has been requested. All backend handling
* when the creation of a new tag has been requested. All backend handling
* like guareteening that the requested tag exists is handled by this class,
* the only task left is to add the new tag to the tags-list when
* 'onInsertNewTag' is called.