129 lines
3.9 KiB
Swift
129 lines
3.9 KiB
Swift
import UIKit
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class VCEditRecording: UIViewController, UITextFieldDelegate, UITextViewDelegate {
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var record: Recording!
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var deleteOnCancel: Bool = false
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@IBOutlet private var buttonCancel: UIBarButtonItem!
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@IBOutlet private var buttonSave: UIBarButtonItem!
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@IBOutlet private var inputTitle: UITextField!
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@IBOutlet private var inputNotes: UITextView!
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@IBOutlet private var inputDetails: UITextView!
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@IBOutlet private var noteBottom: NSLayoutConstraint!
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override func viewDidLoad() {
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inputTitle.placeholder = record.fallbackTitle
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inputTitle.text = record.title
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inputNotes.text = record.notes
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inputDetails.text = """
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Start: \(DateFormat.seconds(record.start))
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End: \(record.stop == nil ? "?" : DateFormat.seconds(record.stop!))
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Duration: \(TimeFormat.from(record.duration ?? 0))
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"""
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validateSaveButton()
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if deleteOnCancel { // mark as destructive
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buttonCancel.tintColor = .systemRed
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if #available(iOS 13.0, *) {
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isModalInPresentation = true
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}
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}
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UIResponder.keyboardWillShowNotification.observe(call: #selector(keyboardWillShow), on: self)
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UIResponder.keyboardWillHideNotification.observe(call: #selector(keyboardWillHide), on: self)
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}
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// MARK: Save & Cancel Buttons
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@IBAction func didTapSave(_ sender: UIBarButtonItem) {
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let newlyCreated = deleteOnCancel
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if newlyCreated {
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// if remains true, `viewDidDisappear` will delete the record
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deleteOnCancel = false
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}
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QLog.Debug("updating record #\(record.id)")
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record.title = (inputTitle.text == "") ? nil : inputTitle.text
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record.notes = (inputNotes.text == "") ? nil : inputNotes.text
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dismiss(animated: true) {
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RecordingsDB.update(self.record)
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if newlyCreated {
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RecordingsDB.persist(self.record)
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}
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}
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}
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@IBAction func didTapCancel(_ sender: UIBarButtonItem) {
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QLog.Debug("discard edit of record #\(record.id)")
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dismiss(animated: true)
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}
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override func viewDidDisappear(_ animated: Bool) {
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if deleteOnCancel {
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QLog.Debug("deleting record #\(record.id)")
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RecordingsDB.delete(record)
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deleteOnCancel = false
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}
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}
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// MARK: Handle Keyboard & Notes Frame
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private var isEditingNotes: Bool = false
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private var keyboardHeight: CGFloat = 0
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@IBAction func hideKeyboard() { view.endEditing(false) }
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func textViewDidBeginEditing(_ textView: UITextView) {
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if textView == inputNotes {
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isEditingNotes = true
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updateKeyboard()
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}
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}
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func textViewDidEndEditing(_ textView: UITextView) {
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if textView == inputNotes {
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isEditingNotes = false
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updateKeyboard()
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}
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}
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@objc func keyboardWillShow(_ notification: NSNotification) {
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keyboardHeight = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue.height ?? 0
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updateKeyboard()
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}
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@objc func keyboardWillHide(_ notification: NSNotification) {
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keyboardHeight = 0
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updateKeyboard()
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}
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private func updateKeyboard() {
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guard let parent = inputNotes.superview, let stack = parent.superview else {
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return
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}
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let adjust = (isEditingNotes && keyboardHeight > 0)
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stack.subviews.forEach{ $0.isHidden = (adjust && $0 != parent) }
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let title = parent.subviews.first as! UILabel
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title.font = .preferredFont(forTextStyle: adjust ? .subheadline : .title2)
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title.sizeToFit()
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title.frame.size.width = parent.frame.width
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noteBottom.constant = adjust ? view.frame.height - stack.frame.maxY - keyboardHeight : 0
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}
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// MARK: TextField & TextView Delegate
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func textFieldDidChangeSelection(_ _: UITextField) { validateSaveButton() }
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func textViewDidChange(_ _: UITextView) { validateSaveButton() }
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private func validateSaveButton() {
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let changed = (inputTitle.text != record.title ?? "" || inputNotes.text != record.notes ?? "")
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buttonSave.isEnabled = changed || deleteOnCancel // always allow save for new recordings
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}
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func textFieldShouldReturn(_ textField: UITextField) -> Bool {
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textField == inputTitle ? inputNotes.becomeFirstResponder() : true
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}
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}
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