feat: refactor for scroll

duckduckgo · Nov 5, 2024 · 99a99cb · 99a99cb
1 parent 7d4a3af
commit 99a99cb
Showing 1 changed file with 45 additions and 10 deletions.
diff --git a/injected/src/features/autofill-password-import.js b/injected/src/features/autofill-password-import.js
@@ -19,6 +19,7 @@ export default class AutofillPasswordImport extends ContentFeature {
     #exportButtonSettings
     #settingsButtonSettings
     #signInButtonSettings
+    #elementToCenterOn
 
     /**
      * @returns {any}
@@ -117,9 +118,34 @@ export default class AutofillPasswordImport extends ContentFeature {
         if (existingOverlay != null) {
             existingOverlay.style.display = 'none'
             existingOverlay.remove()
+            document.removeEventListener('scroll', this.updateOverlayPosition.bind(this))
         }
     }
 
+    /**
+     * Updates the position of the overlay based on the element to center on.
+     * @param {HTMLDivElement} overlay
+     * @param {any} style
+     */
+    updateOverlayPosition (overlay, style) {
+        const animations = overlay.getAnimations()
+        animations.forEach(animation => animation.pause())
+        const { top, left, width, height } = this.elementToCenterOn.getBoundingClientRect()
+        overlay.style.position = 'absolute'
+
+        const isRound = style.borderRadius === '100%'
+
+        const widthOffset = isRound ? (width/2) : 0
+        const heightOffset = isRound ? (height/2) : 0
+
+        overlay.style.top = `calc(${top}px + ${window.scrollY}px - ${widthOffset}px - 1px - ${style.offsetTopEm}em)`
+        overlay.style.left = `calc(${left}px + ${window.scrollX}px - ${heightOffset}px - 1px - ${style.offsetLeftEm}em)`
+
+        // Ensure overlay is non-interactive
+        overlay.style.pointerEvents = 'none'
+        animations.forEach(animation => animation.play())
+    }
+
     /**
      * Inserts an overlay element to animate, by adding a div to the body 
      * and styling it based on the found element. 
@@ -130,26 +156,25 @@ export default class AutofillPasswordImport extends ContentFeature {
     insertOverlayElement (mainElement, style) {
         this.removeOverlayIfNeeded()
 
+
         const overlay = document.createElement('div')
         overlay.setAttribute('id', OVERLAY_ID)
-        const svgElement = mainElement.parentNode?.querySelector('svg') ?? mainElement.querySelector('svg')
 
-        const isRound = style.borderRadius === '100%'
-        const elementToCenterOn = (isRound && svgElement != null) ? svgElement : mainElement
-        if (elementToCenterOn) {
-            const { top, left, width, height } = elementToCenterOn.getBoundingClientRect()
-            overlay.style.position = 'absolute'
-
-            overlay.style.top = `calc(${top}px + ${window.scrollY}px - ${isRound ? height / 2 : 0}px - 1px - ${style.offsetTopEm}em)`
-            overlay.style.left = `calc(${left}px + ${window.scrollX}px - ${isRound ? width / 2 : 0}px - 1px - ${style.offsetLeftEm}em)`
-
+        if (this.elementToCenterOn != null) {
+
+            this.updateOverlayPosition(overlay, style)
+
             const mainElementRect = mainElement.getBoundingClientRect()
             overlay.style.width = `${mainElementRect.width}px`
             overlay.style.height = `${mainElementRect.height}px`
             overlay.style.zIndex = style.zIndex
 
             // Ensure overlay is non-interactive
             overlay.style.pointerEvents = 'none'
+
+            document.addEventListener('scroll', () => {
+                requestAnimationFrame(() => this.updateOverlayPosition(overlay, style))
+            })
 
             // insert in document.body
             document.body.appendChild(overlay)
@@ -182,6 +207,15 @@ export default class AutofillPasswordImport extends ContentFeature {
         observer.observe(document.body, { childList: true, subtree: true })
     }
 
+    setElementToCenterOn (element, style) {
+        const svgElement = element.parentNode?.querySelector('svg') ?? element.querySelector('svg')
+        this.#elementToCenterOn = (style.borderRadius === '100%' && svgElement != null) ? svgElement : element
+    }
+
+    get elementToCenterOn () {
+        return this.#elementToCenterOn
+    } 
+
     /**
      * Moves the element into view and animates it.
      * @param {HTMLElement|Element} element
@@ -267,6 +301,7 @@ export default class AutofillPasswordImport extends ContentFeature {
         if (supportedPaths.includes(path)) {
             try {
                 const { element, style, shouldTap, shouldWatchForRemoval } = await this.getElementAndStyleFromPath(path) ?? {}
+                this.setElementToCenterOn(element, style)
                 if (element != null) {
                     if (shouldTap) {
                         this.autotapElement(element)