Add JS script for color change and reference in main layout

gaepdit · Nov 2, 2023 · ef02723 · ef02723
1 parent 0a428e6
commit ef02723
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Showing 2 changed files with 78 additions and 0 deletions.
diff --git a/FMS/Pages/Shared/_Layout.cshtml b/FMS/Pages/Shared/_Layout.cshtml
@@ -9,6 +9,7 @@
     <link rel="stylesheet" href="~/css/site.css" />
     @await RenderSectionAsync("Styles", required: false)
     <partial name="_RaygunScriptsPartial" />
+    <script src="~/js/color-modes.js"></script>
 </head>
 
 <body id="top" class="d-flex flex-column">

diff --git a/FMS/wwwroot/js/color-modes.js b/FMS/wwwroot/js/color-modes.js
@@ -0,0 +1,77 @@
+/*!
+ * Color mode toggler for Bootstrap's docs (https://getbootstrap.com/)
+ * Copyright 2011-2023 The Bootstrap Authors
+ * Licensed under the Creative Commons Attribution 3.0 Unported License.
+ */
+
+(() => {
+    'use strict'
+
+    const getStoredTheme = () => localStorage.getItem('theme')
+    const setStoredTheme = theme => localStorage.setItem('theme', theme)
+
+    const getPreferredTheme = () => {
+        const storedTheme = getStoredTheme()
+        return storedTheme || 'auto';
+    }
+
+    const setTheme = theme => {
+        if (theme === 'auto' && window.matchMedia('(prefers-color-scheme: dark)').matches) {
+            document.documentElement.setAttribute('data-bs-theme', 'dark')
+        } else {
+            document.documentElement.setAttribute('data-bs-theme', theme)
+        }
+    }
+
+    setTheme(getPreferredTheme())
+
+    const showActiveTheme = (theme, focus = false) => {
+        const themeSwitcher = document.querySelector('#bd-theme')
+
+        if (!themeSwitcher) {
+            return
+        }
+
+        const themeSwitcherText = document.querySelector('#bd-theme-text')
+        const activeThemeIcon = document.querySelector('.theme-icon-active use')
+        const btnToActive = document.querySelector(`[data-bs-theme-value="${theme}"]`)
+        const svgOfActiveBtn = btnToActive.querySelector('svg use').getAttribute('href')
+
+        document.querySelectorAll('[data-bs-theme-value]').forEach(element => {
+            element.classList.remove('active')
+            element.setAttribute('aria-pressed', 'false')
+        })
+
+        btnToActive.classList.add('active')
+        btnToActive.setAttribute('aria-pressed', 'true')
+        activeThemeIcon.setAttribute('href', svgOfActiveBtn)
+        const themeSwitcherLabel = `${themeSwitcherText.textContent} (${btnToActive.dataset.bsThemeValue})`
+        themeSwitcher.setAttribute('aria-label', themeSwitcherLabel)
+        themeSwitcher.setAttribute('title', themeSwitcherLabel)
+
+        if (focus) {
+            themeSwitcher.focus()
+        }
+    }
+
+    window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => {
+        const storedTheme = getStoredTheme()
+        if (storedTheme !== 'light' && storedTheme !== 'dark') {
+            setTheme(getPreferredTheme())
+        }
+    })
+
+    window.addEventListener('DOMContentLoaded', () => {
+        showActiveTheme(getPreferredTheme())
+
+        document.querySelectorAll('[data-bs-theme-value]')
+            .forEach(toggle => {
+                toggle.addEventListener('click', () => {
+                    const theme = toggle.getAttribute('data-bs-theme-value')
+                    setStoredTheme(theme)
+                    setTheme(theme)
+                    showActiveTheme(theme, true)
+                })
+            })
+    })
+})()