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Diffstat (limited to 'doxygen-awesome-darkmode-toggle.js')
| -rw-r--r-- | doxygen-awesome-darkmode-toggle.js | 157 |
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diff --git a/doxygen-awesome-darkmode-toggle.js b/doxygen-awesome-darkmode-toggle.js new file mode 100644 index 0000000..f2c5853 --- /dev/null +++ b/doxygen-awesome-darkmode-toggle.js @@ -0,0 +1,157 @@ +/** + +Doxygen Awesome +https://github.com/jothepro/doxygen-awesome-css + +MIT License + +Copyright (c) 2021 - 2022 jothepro + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + +*/ + +class DoxygenAwesomeDarkModeToggle extends HTMLElement { + // SVG icons from https://fonts.google.com/icons + // Licensed under the Apache 2.0 license: + // https://www.apache.org/licenses/LICENSE-2.0.html + static lightModeIcon = `<svg xmlns="http://www.w3.org/2000/svg" enable-background="new 0 0 24 24" height="24px" viewBox="0 0 24 24" width="24px" fill="#FCBF00"><rect fill="none" height="24" width="24"/><circle cx="12" cy="12" opacity=".3" r="3"/><path d="M12,9c1.65,0,3,1.35,3,3s-1.35,3-3,3s-3-1.35-3-3S10.35,9,12,9 M12,7c-2.76,0-5,2.24-5,5s2.24,5,5,5s5-2.24,5-5 S14.76,7,12,7L12,7z M2,13l2,0c0.55,0,1-0.45,1-1s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S1.45,13,2,13z M20,13l2,0c0.55,0,1-0.45,1-1 s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S19.45,13,20,13z M11,2v2c0,0.55,0.45,1,1,1s1-0.45,1-1V2c0-0.55-0.45-1-1-1S11,1.45,11,2z M11,20v2c0,0.55,0.45,1,1,1s1-0.45,1-1v-2c0-0.55-0.45-1-1-1C11.45,19,11,19.45,11,20z M5.99,4.58c-0.39-0.39-1.03-0.39-1.41,0 c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0s0.39-1.03,0-1.41L5.99,4.58z M18.36,16.95 c-0.39-0.39-1.03-0.39-1.41,0c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0c0.39-0.39,0.39-1.03,0-1.41 L18.36,16.95z M19.42,5.99c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06c-0.39,0.39-0.39,1.03,0,1.41 s1.03,0.39,1.41,0L19.42,5.99z M7.05,18.36c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06 c-0.39,0.39-0.39,1.03,0,1.41s1.03,0.39,1.41,0L7.05,18.36z"/></svg>` + static darkModeIcon = `<svg xmlns="http://www.w3.org/2000/svg" enable-background="new 0 0 24 24" height="24px" viewBox="0 0 24 24" width="24px" fill="#FE9700"><rect fill="none" height="24" width="24"/><path d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27 C17.45,17.19,14.93,19,12,19c-3.86,0-7-3.14-7-7C5,9.07,6.81,6.55,9.37,5.51z" opacity=".3"/><path d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27C17.45,17.19,14.93,19,12,19 c-3.86,0-7-3.14-7-7C5,9.07,6.81,6.55,9.37,5.51z M12,3c-4.97,0-9,4.03-9,9s4.03,9,9,9s9-4.03,9-9c0-0.46-0.04-0.92-0.1-1.36 c-0.98,1.37-2.58,2.26-4.4,2.26c-2.98,0-5.4-2.42-5.4-5.4c0-1.81,0.89-3.42,2.26-4.4C12.92,3.04,12.46,3,12,3L12,3z"/></svg>` + static title = "Toggle Light/Dark Mode" + + static prefersLightModeInDarkModeKey = "prefers-light-mode-in-dark-mode" + static prefersDarkModeInLightModeKey = "prefers-dark-mode-in-light-mode" + + static _staticConstructor = function() { + DoxygenAwesomeDarkModeToggle.enableDarkMode(DoxygenAwesomeDarkModeToggle.userPreference) + // Update the color scheme when the browsers preference changes + // without user interaction on the website. + window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', event => { + DoxygenAwesomeDarkModeToggle.onSystemPreferenceChanged() + }) + // Update the color scheme when the tab is made visible again. + // It is possible that the appearance was changed in another tab + // while this tab was in the background. + document.addEventListener("visibilitychange", visibilityState => { + if (document.visibilityState === 'visible') { + DoxygenAwesomeDarkModeToggle.onSystemPreferenceChanged() + } + }); + }() + + static init() { + $(function() { + $(document).ready(function() { + const toggleButton = document.createElement('doxygen-awesome-dark-mode-toggle') + toggleButton.title = DoxygenAwesomeDarkModeToggle.title + toggleButton.updateIcon() + + window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', event => { + toggleButton.updateIcon() + }) + document.addEventListener("visibilitychange", visibilityState => { + if (document.visibilityState === 'visible') { + toggleButton.updateIcon() + } + }); + + $(document).ready(function(){ + document.getElementById("MSearchBox").parentNode.appendChild(toggleButton) + }) + $(window).resize(function(){ + document.getElementById("MSearchBox").parentNode.appendChild(toggleButton) + }) + }) + }) + } + + constructor() { + super(); + this.onclick=this.toggleDarkMode + } + + /** + * @returns `true` for dark-mode, `false` for light-mode system preference + */ + static get systemPreference() { + return window.matchMedia('(prefers-color-scheme: dark)').matches + } + + /** + * @returns `true` for dark-mode, `false` for light-mode user preference + */ + static get userPreference() { + return (!DoxygenAwesomeDarkModeToggle.systemPreference && localStorage.getItem(DoxygenAwesomeDarkModeToggle.prefersDarkModeInLightModeKey)) || + (DoxygenAwesomeDarkModeToggle.systemPreference && !localStorage.getItem(DoxygenAwesomeDarkModeToggle.prefersLightModeInDarkModeKey)) + } + + static set userPreference(userPreference) { + DoxygenAwesomeDarkModeToggle.darkModeEnabled = userPreference + if(!userPreference) { + if(DoxygenAwesomeDarkModeToggle.systemPreference) { + localStorage.setItem(DoxygenAwesomeDarkModeToggle.prefersLightModeInDarkModeKey, true) + } else { + localStorage.removeItem(DoxygenAwesomeDarkModeToggle.prefersDarkModeInLightModeKey) + } + } else { + if(!DoxygenAwesomeDarkModeToggle.systemPreference) { + localStorage.setItem(DoxygenAwesomeDarkModeToggle.prefersDarkModeInLightModeKey, true) + } else { + localStorage.removeItem(DoxygenAwesomeDarkModeToggle.prefersLightModeInDarkModeKey) + } + } + DoxygenAwesomeDarkModeToggle.onUserPreferenceChanged() + } + + static enableDarkMode(enable) { + if(enable) { + DoxygenAwesomeDarkModeToggle.darkModeEnabled = true + document.documentElement.classList.add("dark-mode") + document.documentElement.classList.remove("light-mode") + } else { + DoxygenAwesomeDarkModeToggle.darkModeEnabled = false + document.documentElement.classList.remove("dark-mode") + document.documentElement.classList.add("light-mode") + } + } + + static onSystemPreferenceChanged() { + DoxygenAwesomeDarkModeToggle.darkModeEnabled = DoxygenAwesomeDarkModeToggle.userPreference + DoxygenAwesomeDarkModeToggle.enableDarkMode(DoxygenAwesomeDarkModeToggle.darkModeEnabled) + } + + static onUserPreferenceChanged() { + DoxygenAwesomeDarkModeToggle.enableDarkMode(DoxygenAwesomeDarkModeToggle.darkModeEnabled) + } + + toggleDarkMode() { + DoxygenAwesomeDarkModeToggle.userPreference = !DoxygenAwesomeDarkModeToggle.userPreference + this.updateIcon() + } + + updateIcon() { + if(DoxygenAwesomeDarkModeToggle.darkModeEnabled) { + this.innerHTML = DoxygenAwesomeDarkModeToggle.darkModeIcon + } else { + this.innerHTML = DoxygenAwesomeDarkModeToggle.lightModeIcon + } + } +} + +customElements.define("doxygen-awesome-dark-mode-toggle", DoxygenAwesomeDarkModeToggle); 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