feat(helper): add Message class to handle message

eslint.config.js

@@ -99,6 +99,10 @@ export default vuepress(
         ],
         '@typescript-eslint/no-dynamic-delete': 'off',
         '@typescript-eslint/no-non-null-assertion': 'off',
+        '@typescript-eslint/no-empty-function': [
+          'error',
+          { allow: ['private-constructors'] },
+        ],
         '@typescript-eslint/no-floating-promises': [
           'error',
           {

tools/helper/src/client/styles/message.scss

@@ -0,0 +1,58 @@
+@keyframes message-move-in {
+  0% {
+    opacity: 0;
+    transform: translateY(-100%);
+  }
+
+  100% {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes message-move-out {
+  0% {
+    opacity: 1;
+    transform: translateY(0);
+  }
+
+  100% {
+    opacity: 0;
+    transform: translateY(-100%);
+  }
+}
+
+#message-container {
+  position: fixed;
+  inset: calc(var(--message-offset, 3.6rem) + 1rem) 0 auto;
+  z-index: 75;
+  text-align: center;
+}
+
+.message-item {
+  display: inline-block;
+
+  padding: 8px 10px;
+  border-radius: 3px;
+
+  background: var(--vp-c-bg);
+  color: var(--vp-c-text);
+  box-shadow: 0 0 10px 0 var(--vp-c-shadow);
+
+  font-size: 14px;
+
+  &.move-in {
+    animation: message-move-in 0.3s ease-in-out;
+  }
+
+  &.move-out {
+    animation: message-move-out 0.3s ease-in-out;
+    animation-fill-mode: forwards;
+  }
+
+  svg {
+    position: relative;
+    bottom: -0.125em;
+    margin-inline-end: 5px;
+  }
+}

tools/helper/src/client/utils/index.ts

@@ -5,4 +5,5 @@ export * from './getHeaders.js'
 export * from './isFocusingTextControl.js'
 export * from './isKeyMatched.js'
 export * from './hasGlobalComponent.js'
+export * from './message.js'
 export * from './wait.js'

tools/helper/src/client/utils/message.ts

@@ -0,0 +1,63 @@
+import { keys } from '../../shared/index.js'
+
+const containerId = 'message-container'
+
+export class Message {
+  private elements: Record<number, HTMLDivElement> = {}
+
+  private constructor() {}
+
+  public static get containerElement(): HTMLElement {
+    let containerElement = document.getElementById(containerId)
+
+    if (containerElement) return containerElement
+
+    containerElement = document.createElement('div')
+
+    containerElement.id = containerId
+    document.body.appendChild(containerElement)
+
+    return containerElement
+  }
+
+  public pop(html: string, duration = 2000): number {
+    const messageElement = document.createElement('div')
+    const messageId = Date.now()
+
+    messageElement.className = 'message-item move-in'
+    messageElement.innerHTML = html
+    Message.containerElement.appendChild(messageElement)
+    this.elements[messageId] = messageElement
+
+    if (duration > 0)
+      setTimeout(() => {
+        this.close(messageId)
+      }, duration)
+
+    return messageId
+  }
+
+  public close(messageId?: number): void {
+    if (messageId) {
+      const messageElement = this.elements[messageId]
+
+      messageElement.classList.remove('move-in')
+      messageElement.classList.add('move-out')
+      messageElement.addEventListener('animationend', () => {
+        messageElement.remove()
+        delete this.elements[messageId]
+      })
+    } else {
+      keys(this.elements).forEach((id) => {
+        this.close(Number(id))
+      })
+    }
+  }
+
+  public destroy(): void {
+    const containerElement = document.getElementById(containerId)
+
+    if (containerElement) document.body.removeChild(containerElement)
+    this.elements = {}
+  }
+}