Multi-action-text label WIP.

This commit is contained in:
Christiano, Kevin 2019-05-01 15:42:49 -04:00
parent dc6f0d48d4
commit f64c793aeb
2 changed files with 96 additions and 11 deletions

View File

@ -20,6 +20,9 @@ public typealias ActionBlock = () -> Void
var actionText: String?
var frontText: String?
var clauses = [ActionableClause]()
// This is here for LabelWithInternalButton
var makeWholeViewClickable = false
// Set this property if you want updateView to update the font based on this standard and the size passed in.
@ -38,6 +41,26 @@ public typealias ActionBlock = () -> Void
return !text.isEmpty || !attributedText.string.isEmpty
}
struct ActionableClause {
var location: Int?
var length: Int?
var actionText: String?
var words: [String]? {
return actionText?.components(separatedBy: " ")
}
var actionBlock: ActionBlock?
var range: NSRange {
return NSRange(location: location ?? 0, length: length ?? 0)
}
func performAction() {
if let action = actionBlock {
action()
}
}
}
//------------------------------------------------------
// MARK: - Initialization
//------------------------------------------------------
@ -148,7 +171,7 @@ public typealias ActionBlock = () -> Void
@objc public static func setUILabel(_ label: UILabel?, withJSON json: [AnyHashable: Any]?, delegate: DelegateObject?, additionalData: [AnyHashable: Any]?) {
guard let label = label else { return }
guard let label = label as? Label else { return }
label.text = json?.optionalStringForKey(KeyText)
@ -176,7 +199,6 @@ public typealias ActionBlock = () -> Void
let attributedString = NSMutableAttributedString(string: labelText, attributes: [NSAttributedString.Key.font: label.font as UIFont,
NSAttributedString.Key.foregroundColor: label.textColor as UIColor])
for case let attribute as [String: Any] in attributes {
guard let attributeType = attribute.optionalStringForKey(KeyType),
let location = attribute["location"] as? Int,
let length = attribute["length"] as? Int
@ -210,6 +232,29 @@ public typealias ActionBlock = () -> Void
attributedString.removeAttribute(.font, range: range)
attributedString.addAttribute(.font, value: font, range: range)
}
case "actions":
let actions = attribute.arrayForKey("actions")
let text = json?.optionalStringForKey(KeyText)
for case let action as [String: Any] in actions {
guard let locationx = action["location"] as? Int,
let lengthx = action["length"] as? Int
else { continue }
let subStringRange = Range(NSRange(location: locationx, length: lengthx), in: text!)
let actionText = text![subStringRange!]
label.clauses.append(ActionableClause(location: locationx, length: lengthx,
actionText: String(actionText),
actionBlock: { MVMCoreActionHandler.shared()?.handleAction(with: attribute, additionalData: additionalData, delegateObject: delegate) }))
if !label.isUserInteractionEnabled {
label.isUserInteractionEnabled = true
let tapGesture = UITapGestureRecognizer(target: label, action: #selector(textLinkTapped(_:)))
tapGesture.numberOfTapsRequired = 1
label.addGestureRecognizer(tapGesture)
}
}
default:
continue
}
@ -308,22 +353,29 @@ public typealias ActionBlock = () -> Void
}
public func needsToBeConstrained() -> Bool {
return true;
return true
}
}
// MARK: - UIControl Override
extension Label {
override open func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
@objc func textLinkTapped(_ gesture: UITapGestureRecognizer) {
if areTouches(inActionString: touches) {
if let action = actionBlock {
for clause in clauses {
if gesture.didTapAttributedTextInLabel(self, inRange: clause.range), let action = clause.actionBlock {
action()
}
}
}
override open func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
if areTouches(inActionString: touches), let action = actionBlock {
action()
}
}
private func areTouches(inActionString touches: Set<UITouch>?) -> Bool {
if UIAccessibility.isVoiceOverRunning || makeWholeViewClickable {
@ -331,8 +383,8 @@ extension Label {
}
let location: CGPoint? = touches?.first?.location(in: self)
let index: Int = NSRange(location: frontText?.count ?? 0, length: actionText?.count ?? 0).location
let rangeArray = getRangeArrayOfWords(in: actionText, withInitalIndex: index)
let actionTextIndex: Int = NSRange(location: frontText?.count ?? 0, length: actionText?.count ?? 0).location
let rangeArray = getRangeArrayOfWords(in: actionText, withInitalIndex: actionTextIndex)
let rectArray = getRectArray(from: rangeArray) as? [NSValue] ?? []
for rect in rectArray {
@ -342,7 +394,7 @@ extension Label {
return true
} else if wordRect.origin == .zero && wordRect.size.height == 0 && wordRect.size.width == 0 {
// Incase word rect is not found for any reason, make the whole label to be clicable to avoid non functioning link in production.
// In case word rect is not found for any reason, make the whole label to be clicable to avoid non functioning link in production.
return true
}
}
@ -350,6 +402,7 @@ extension Label {
return false
}
// Works for LabelWithInternalButton
private func getRangeArrayOfWords(in string: String?, withInitalIndex index: Int) -> [Any]? {
var index = index
@ -368,6 +421,7 @@ extension Label {
return rangeArray
}
// Works for LabelWithInternalButton
private func getRectArray(from rangeArray: [Any]?) -> [Any]? {
var rectArray = [AnyHashable]()
@ -380,3 +434,34 @@ extension Label {
return rectArray
}
}
extension UITapGestureRecognizer {
func didTapAttributedTextInLabel(_ label: Label, inRange targetRange: NSRange) -> Bool {
let layoutManager = NSLayoutManager()
let textContainer = NSTextContainer(size: .zero)
let textStorage = NSTextStorage(attributedString: label.attributedText!)
layoutManager.addTextContainer(textContainer)
textStorage.addLayoutManager(layoutManager)
textContainer.lineFragmentPadding = 0.0
textContainer.lineBreakMode = label.lineBreakMode
textContainer.maximumNumberOfLines = label.numberOfLines
let labelSize = label.bounds.size
textContainer.size = labelSize
// Find the tapped character location and compare it to the specified range
// let locationOfTouchInLabel = location(in: label)
// let textBoundingBox = layoutManager.usedRect(for: textContainer)
// let textContainerOffset = CGPoint(x: (labelSize.width - textBoundingBox.size.width) * 0.5 - textBoundingBox.origin.x,
// y: (labelSize.height - textBoundingBox.size.height) * 0.5 - textBoundingBox.origin.y)
// let locationOfTouchInTextContainer = CGPoint(x: locationOfTouchInLabel.x - textContainerOffset.x,
// y: locationOfTouchInLabel.y - textContainerOffset.y)
let indexOfCharacter = layoutManager.characterIndex(for: location(in: label), in: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
return NSLocationInRange(indexOfCharacter, targetRange)
}
}

View File

@ -44,8 +44,8 @@ import UIKit
if let backgroundColorString = json?.optionalStringForKey(KeyBackgroundColor) {
backgroundColor = UIColor.mfGet(forHex: backgroundColorString)
}
let primaryButtonMap = json?.optionalDictionaryForKey("primaryButton")
let secondaryButtonMap = json?.optionalDictionaryForKey("secondaryButton")
let primaryButtonMap = json?.optionalDictionaryForKey(KeyPrimaryButton)
let secondaryButtonMap = json?.optionalDictionaryForKey(KeySecondaryButton)
set(primaryButtonJSON: primaryButtonMap, secondaryButtonJSON: secondaryButtonMap, delegateObject: delegateObject, additionalData: additionalData)
}