1 line
5.7 KiB
JavaScript
1 line
5.7 KiB
JavaScript
const themeToggle=document.createElement("template");themeToggle.innerHTML='\n <style>\n *{\n padding: 0;\n margin: 0;\n box-sizing: border-box;\n }\n :host{\n cursor: pointer;\n --height: 2.5rem;\n --width: 2.5rem;\n }\n .theme-toggle {\n display: flex;\n position: relative;\n width: 1.2rem;\n height: 1.2rem;\n cursor: pointer;\n -webkit-tap-highlight-color: transparent;\n }\n .theme-toggle::after{\n content: \'\';\n position: absolute;\n height: var(--height);\n width: var(--width);\n top: 50%;\n left: 50%;\n opacity: 0;\n border-radius: 50%;\n pointer-events: none;\n transition: transform 0.3s, opacity 0.3s;\n transform: translate(-50%, -50%) scale(1.2);\n background-color: rgba(var(--text-color,inherit), 0.12);\n }\n :host(:focus-within) .theme-toggle{\n outline: none;\n }\n :host(:focus-within) .theme-toggle::after{\n opacity: 1;\n transform: translate(-50%, -50%) scale(1);\n }\n .icon {\n position: absolute;\n height: 100%;\n width: 100%;\n fill: rgba(var(--text-color,inherit), 1);\n transition: transform 0.3s, opacity 0.1s;\n }\n \n .theme-switcher__checkbox {\n display: none;\n }\n :host([checked]) .moon-icon {\n transform: translateY(50%);\n opacity: 0;\n }\n :host(:not([checked])) .sun-icon {\n transform: translateY(50%);\n opacity: 0;\n }\n </style>\n <label class="theme-toggle" title="Change theme" tabindex="0">\n <slot name="light-mode-icon">\n <svg xmlns="http://www.w3.org/2000/svg" class="icon moon-icon" enable-background="new 0 0 24 24" height="24px" viewBox="0 0 24 24" width="24px" fill="#000000"><rect fill="none" height="24" width="24"/><path d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27C17.45,17.19,14.93,19,12,19 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>\n </slot>\n <slot name="dark-mode-icon">\n <svg xmlns="http://www.w3.org/2000/svg" class="icon sun-icon" enable-background="new 0 0 24 24" height="24px" viewBox="0 0 24 24" width="24px" fill="#000000"><rect fill="none" height="24" width="24"/><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>\n </slot>\n </label>\n';class ThemeToggle extends HTMLElement{constructor(){super(),this.attachShadow({mode:"open"}).append(themeToggle.content.cloneNode(!0)),this.isChecked=!1,this.hasTheme="light",this.toggleState=this.toggleState.bind(this),this.fireEvent=this.fireEvent.bind(this),this.handleThemeChange=this.handleThemeChange.bind(this)}static get observedAttributes(){return["checked"]}daylight(){this.hasTheme="light",document.body.dataset.theme="light",this.setAttribute("aria-checked","false")}nightlight(){this.hasTheme="dark",document.body.dataset.theme="dark",this.setAttribute("aria-checked","true")}toggleState(){if(!document.startViewTransition)return this.toggleAttribute("checked"),void this.fireEvent();document.startViewTransition(()=>{this.toggleAttribute("checked"),this.fireEvent()})}handleKeyDown(e){" "===e.key&&this.toggleState()}handleThemeChange(e){e.detail.theme!==this.hasTheme&&("dark"===e.detail.theme?this.setAttribute("checked",""):this.removeAttribute("checked"))}fireEvent(){this.dispatchEvent(new CustomEvent("themechange",{bubbles:!0,composed:!0,detail:{theme:this.hasTheme}}))}connectedCallback(){this.setAttribute("role","switch"),this.setAttribute("aria-label","theme toggle"),"dark"===localStorage.getItem(`${window.location.hostname}-theme`)?(this.nightlight(),this.setAttribute("checked","")):"light"===localStorage.getItem(`${window.location.hostname}-theme`)?(this.daylight(),this.removeAttribute("checked")):window.matchMedia("(prefers-color-scheme: dark)").matches?(this.nightlight(),this.setAttribute("checked","")):(this.daylight(),this.removeAttribute("checked")),this.addEventListener("click",this.toggleState),this.addEventListener("keydown",this.handleKeyDown),document.addEventListener("themechange",this.handleThemeChange)}disconnectedCallback(){this.removeEventListener("click",this.toggleState),this.removeEventListener("keydown",this.handleKeyDown),document.removeEventListener("themechange",this.handleThemeChange)}attributeChangedCallback(e,t,n){"checked"===e&&(this.hasAttribute("checked")?(this.nightlight(),localStorage.setItem(`${window.location.hostname}-theme`,"dark")):(this.daylight(),localStorage.setItem(`${window.location.hostname}-theme`,"light")))}}window.customElements.define("theme-toggle",ThemeToggle); |