From d349dd8b4b0889b1f137d94ec68c52d44a2bbf84 Mon Sep 17 00:00:00 2001
From: Sven <fr.sven.fr@gmail.com>
Date: Wed, 6 Sep 2023 13:58:29 +0200
Subject: [PATCH] tabs animation change

---
 packages/ui/src/composites/wui-tabs/index.ts  | 67 +++++++++++++++----
 packages/ui/src/composites/wui-tabs/styles.ts | 44 +++---------
 2 files changed, 66 insertions(+), 45 deletions(-)

diff --git a/packages/ui/src/composites/wui-tabs/index.ts b/packages/ui/src/composites/wui-tabs/index.ts
index 477dd2715f..2ce9a1e952 100644
--- a/packages/ui/src/composites/wui-tabs/index.ts
+++ b/packages/ui/src/composites/wui-tabs/index.ts
@@ -3,6 +3,7 @@ import { customElement, property, state } from 'lit/decorators.js'
 import { elementStyles, resetStyles } from '../../utils/ThemeUtil.js'
 import type { IconType } from '../../utils/TypesUtil.js'
 import styles from './styles.js'
+import { animate } from 'motion'
 
 @customElement('wui-tabs')
 export class WuiTabs extends LitElement {
@@ -13,47 +14,89 @@ export class WuiTabs extends LitElement {
 
   @property() public onTabChange: (index: number) => void = () => null
 
+  @property({ type: Array }) public buttons: HTMLButtonElement[] = []
+
   @state() public activeTab = 0
 
+  @state() public localTabWidth = '100px'
+
+  @state() public isDense = false
+
   // -- Render -------------------------------------------- //
   public override render() {
-    const isDense = this.tabs.length > 3
+    this.isDense = this.tabs.length > 3
 
     this.style.cssText = `
       --local-tab: ${this.activeTab};
-      --local-tab-width: 100px;
+      --local-tab-width: ${this.localTabWidth};
       --local-dense-tab-width: max-content;
     `
 
-    this.dataset['type'] = isDense ? 'flex' : 'block'
+    this.dataset['type'] = this.isDense ? 'flex' : 'block'
 
     return this.tabs.map((tab, index) => {
       const isActive = index === this.activeTab
 
       return html`
-        <button @click=${() => this.onTabClick(index)} data-active=${isActive}>
+        <button
+          style="{{width:
+          20px}}"
+          @click=${() => this.onTabClick(index)}
+          data-active=${isActive}
+        >
           <wui-icon size="sm" color="inherit" name=${tab.icon}></wui-icon>
-          ${this.showLabel(tab, isDense, isActive)}
+          <wui-text variant="small-600" color="inherit"> ${tab.label}</wui-text>
         </button>
       `
     })
   }
 
+  override firstUpdated() {
+    if (this.shadowRoot && this.isDense) {
+      this.buttons = [...this.shadowRoot.querySelectorAll('button')]
+      setTimeout(() => {
+        this.animateTabs(0, true)
+      }, 1)
+    }
+  }
+
   // -- Private ------------------------------------------- //
   private onTabClick(index: number) {
+    if (this.buttons) {
+      this.animateTabs(index, false)
+    }
     this.activeTab = index
     this.onTabChange(index)
   }
 
-  private showLabel(tab: { icon: IconType; label: string }, isDense: boolean, isActive: boolean) {
-    if (!isDense) {
-      return html`<wui-text variant="small-600" color="inherit"> ${tab.label}</wui-text>`
-    }
-    if (isDense && isActive) {
-      return html`<wui-text variant="small-600" color="inherit"> ${tab.label}</wui-text>`
+  private animateTabs(index: number, initialAnimation: boolean) {
+    const passiveBtn = this.buttons[this.activeTab]
+    const activeBtn = this.buttons[index]
+
+    const passiveBtnText = passiveBtn?.querySelector('wui-text')
+    const activeBtnText = activeBtn?.querySelector('wui-text')
+
+    const activeBtnBounds = activeBtn?.getBoundingClientRect()
+    const activeBtnTextBounds = activeBtnText?.getBoundingClientRect()
+
+    if (passiveBtn && passiveBtnText && !initialAnimation) {
+      animate(passiveBtnText, { opacity: 0 }, { duration: 0.25 })
+      animate(passiveBtn, { width: `20px` }, { duration: 0.25, delay: 0.05 })
     }
 
-    return null
+    if (activeBtn && activeBtnBounds && activeBtnTextBounds && activeBtnText) {
+      this.localTabWidth = `${Math.round(
+        activeBtnBounds.width + activeBtnTextBounds.width + 6 + 12
+      )}px`
+
+      animate(
+        activeBtn,
+        { width: `${activeBtnBounds.width + activeBtnTextBounds.width + 6}px` },
+        { duration: 0.5, delay: 0.1 }
+      )
+
+      animate(activeBtnText, { opacity: 1 }, { duration: 0.25, delay: 0.15 })
+    }
   }
 }
 
diff --git a/packages/ui/src/composites/wui-tabs/styles.ts b/packages/ui/src/composites/wui-tabs/styles.ts
index ec5a023523..7a243ef803 100644
--- a/packages/ui/src/composites/wui-tabs/styles.ts
+++ b/packages/ui/src/composites/wui-tabs/styles.ts
@@ -28,17 +28,19 @@ export default css`
   }
 
   :host([data-type='flex'])::before {
-    transform: translateX(calc(var(--local-tab) * var(--local-tab-width) / 2.02));
+    transform: translateX(calc(var(--local-tab) * var(--local-tab-width) / 1.85));
   }
 
   :host([data-type='flex']) {
     display: flex;
-    padding: 0px 4px;
+    padding: 0px 12px;
+    gap: 28px;
   }
 
-  :host([data-type='flex']) > button[data-active='true'] > wui-text {
-    animation-name: fadein;
-    animation-duration: 0.5s;
+  :host([data-type='flex']) > button > wui-text {
+    position: absolute;
+    left: 18px;
+    opacity: 0;
   }
 
   button[data-active='true'] > wui-icon,
@@ -62,12 +64,10 @@ export default css`
   }
 
   :host([data-type='flex']) > button {
-    width: var(--local-dense-tab-width);
-    padding: 0px 16px;
-  }
-
-  :host([data-type='flex']) > button[data-active='true'] {
-    min-width: 105px;
+    width: 20px;
+    position: relative;
+    display: flex;
+    justify-content: flex-start;
   }
 
   button:hover:enabled,
@@ -84,26 +84,4 @@ export default css`
   button:active > wui-text {
     color: var(--wui-color-fg-125);
   }
-
-  @keyframes fadein {
-    from {
-      opacity: 0;
-      transform: translateX(10px);
-    }
-    to {
-      opacity: 1;
-      transform: translateX(0px);
-    }
-  }
-
-  @keyframes fadeout {
-    from {
-      opacity: 1;
-      transform: translateX(0px);
-    }
-    to {
-      opacity: 0;
-      transform: translateX(-10px);
-    }
-  }
 `