with onAccessibilityEvent for clickable words

SkipperAccessibilityService.kt

class SkipperAccessibilityService : AccessibilityService() {

    ...
    
    override fun onAccessibilityEvent(event: AccessibilityEvent) {
        val clickableWords = appsToWordsMap[AppPackageName(event.packageName.toString())].orEmpty()
        
        clickableWords.forEach {
            val matchingNodes = event.source?.findAccessibilityNodeInfosByText(it.word).orEmpty()
            matchingNodes.forEach { node ->
                // we want at most one successful click from any of the nodes, matching any of the words
                if (node.clickClosestAncestor()) {
                    return
                }
            }
        }
    }

    /**
     * @return true if something was clicked
     */
    private fun AccessibilityNodeInfo?.clickClosestAncestor(): Boolean {
        if (this == null) {
            return false
        }

        if (hasClickAction()) {
            performAction(AccessibilityNodeInfo.ACTION_CLICK)
            return true
        } else {
            return parent.clickClosestAncestor()
        }
    }

    private fun AccessibilityNodeInfo.hasClickAction(): Boolean {
        actionList?.forEach({
            if (it.id == AccessibilityNodeInfo.ACTION_CLICK) {
                return true
            }
        })
        return false
    }
}