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updated identifying buttons on view for rotor

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This commit is contained in:
Krishna Kishore Bandaru 2023-09-25 16:20:11 +05:30
parent 9c111471a8
commit dad947d7c8
1 changed files with 29 additions and 14 deletions
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43
MVMCoreUI/Accessibility/AccessibilityHandler.swift
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@ -224,6 +224,7 @@ class AccessibilityHandlerBehavior: PageVisibilityBehavior {
///https://oneconfluence.verizon.com/display/MFD/Accessibility+-+Focus+Retain
func onPageShown(_ delegateObject: MVMCoreUIDelegateObject?) {
updateAccessibilityViews(delegateObject) //To track FAB & HAB elements on UI
identifyAndPrepareForButtonRotor()
guard let accessibilityElement = AccessibilityHandler.shared()?.getPreDefinedFocusedElementIfAny() else { return }
if AccessibilityHandler.shared()?.hasTopNotitificationInPage ?? false {
AccessibilityHandler.shared()?.previousAccessiblityElement = accessibilityElement
@ -234,24 +235,15 @@ class AccessibilityHandlerBehavior: PageVisibilityBehavior {
//MARK: - Private Methods
private func identifyAndPrepareForButtonRotor() {
let currentViewController = ((delegateObj?.moleculeDelegate as? MVMCoreViewManagerViewControllerProtocol)?.manager as? SubNavManagerController) ?? (delegateObj?.moleculeDelegate as? UIViewController)
var rotorElements: [(model: MoleculeModelProtocol, indexPath: IndexPath)] = []
var currentIndexPath: IndexPath?
rotorElements = (currentViewController as? MoleculeListTemplate)?.templateModel?.reduceDepthFirstTraverse(options: .parentFirst, depth: 0, initialResult: rotorElements, nextPartialResult: { result, model, depth in
if let listModel = model as? (ListItemModelProtocol & MoleculeModelProtocol), let indexPath = (currentViewController as? MoleculeListTemplate)?.getIndexPath(for: listModel) { currentIndexPath = indexPath
}
var result = result
if (model.accessibilityTraits?.contains(.button) ?? false), let currentIndexPath {
result.append((model, currentIndexPath))
}
return result
}) ?? []
let currentViewController = ((delegateObj?.moleculeDelegate as? MVMCoreViewManagerViewControllerProtocol)?.manager as? SubNavManagerController) ?? (delegateObj?.moleculeDelegate as? ViewController)
var accessibilityButtons: [Any?]? = currentViewController?.navigationItem.leftBarButtonItems ?? []
accessibilityButtons?.append(contentsOf: currentViewController?.navigationItem.rightBarButtonItems ?? [])
if let tabs = (currentViewController as? SubNavManagerController)?.tabs {
accessibilityButtons?.append(contentsOf: tabs.subviews.filter { $0.accessibilityTraits.contains(.button) })
}
accessibilityButtons?.append(contentsOf: rotorElements)
if let rotorElements = getRotorButtonsBasedOn(template: currentViewController) {
accessibilityButtons?.append(contentsOf: rotorElements)
}
if let tabBarHidden = (delegateObj?.moleculeDelegate as? TabPageModelProtocol)?.tabBarHidden, !tabBarHidden {
accessibilityButtons?.append(contentsOf: (MVMCoreUISplitViewController.main()?.tabBar?.subviews ?? []).filter { $0.accessibilityTraits.contains(.button)})
}
@ -259,6 +251,29 @@ class AccessibilityHandlerBehavior: PageVisibilityBehavior {
currentViewController?.navigationController?.accessibilityCustomRotors = [createRotorForButtons()].compactMap { $0 }
}
private func getRotorButtonsBasedOn(template: ViewController?) -> [Any]? {
if let currentViewController = template as? MoleculeListTemplate, let templateModel = currentViewController.templateModel { //List templates
var rotorElements: [(model: MoleculeModelProtocol, indexPath: IndexPath)] = []
var currentIndexPath: IndexPath?
rotorElements = templateModel.reduceDepthFirstTraverse(options: .parentFirst, depth: 0, initialResult: rotorElements, nextPartialResult: { result, model, depth in
if let listModel = model as? (ListItemModelProtocol & MoleculeModelProtocol), let indexPath = currentViewController.getIndexPath(for: listModel) {
currentIndexPath = indexPath
}
var result = result
if (model.accessibilityTraits?.contains(.button) ?? false), let currentIndexPath {
result.append((model, currentIndexPath))
}
return result
})
let headerViewElements = currentViewController.tableView.tableHeaderView?.getMoleculeViews { (subView: MoleculeViewProtocol) in subView.accessibilityTraits.contains(.button) } as? [Any] ?? []
let footerViewElements = currentViewController.tableView.tableFooterView?.getMoleculeViews { (subView: MoleculeViewProtocol) in subView.accessibilityTraits.contains(.button) } as? [Any] ?? []
return headerViewElements + (rotorElements as [Any]) + footerViewElements
} else if let currentViewController = template as? MoleculeStackTemplate { //Stack templates
return currentViewController.view?.getMoleculeViews { (subView: MoleculeViewProtocol) in subView.accessibilityTraits.contains(.button) }
}
return nil
}
private func createRotorForButtons() -> UIAccessibilityCustomRotor? {
guard let accessibilityButtons, !accessibilityButtons.isEmpty, let tableView = (delegateObj?.moleculeListDelegate as? MoleculeListTemplate)?.tableView else { return nil }
return UIAccessibilityCustomRotor(name: "Buttons") { [weak self] predicate in
@ -277,7 +292,7 @@ class AccessibilityHandlerBehavior: PageVisibilityBehavior {
var rotorElement = accessibilityButtons[self.currentRotorIndex - 1]
if let element = rotorElement as? (model: MoleculeModelProtocol, indexPath: IndexPath) {
tableView.scrollToRow(at: element.indexPath, at: .middle, animated: false)
rotorElement = tableView.cellForRow(at: element.indexPath)?.getMoleculeViews { (subView: MoleculeViewProtocol) in subView.accessibilityTraits.contains(.button) }.filter { ($0 as? MoleculeViewModelProtocol)?.moleculeModel?.id == element.model.id } as Any
rotorElement = tableView.cellForRow(at: element.indexPath)?.getMoleculeViews { (subView: MoleculeViewProtocol) in subView.accessibilityTraits.contains(.button) }.filter { ($0 as? MoleculeViewModelProtocol)?.moleculeModel?.id == element.model.id }.first as Any
}
UIAccessibility.post(notification: .layoutChanged, argument: rotorElement)
return UIAccessibilityCustomRotorItemResult(targetElement: rotorElement as! NSObjectProtocol, targetRange: nil)