// C o p y r i g h t © 2 0 2 2 R a n g e p r o o f P t y L t d . A l l r i g h t s r e s e r v e d .
import UIKit
import Photos
import PromiseKit
import SignalUtilitiesKit
class SendMediaNavigationController : OWSNavigationController {
// T h i s i s a s e n s i t i v e c o n s t a n t , i f y o u c h a n g e i t m a k e s u r e t o c h e c k
// o n i P h o n e 5 , 6 , 6 + , X , l a y o u t s .
static let bottomButtonsCenterOffset : CGFloat = - 50
private let threadId : String
// MARK: - I n i t i a l i z a t i o n
init ( threadId : String ) {
self . threadId = threadId
super . init ( )
}
required init ? ( coder aDecoder : NSCoder ) {
fatalError ( " init(coder:) has not been implemented " )
}
// MARK: - O v e r r i d e s
override var prefersStatusBarHidden : Bool { return true }
override func viewDidLoad ( ) {
super . viewDidLoad ( )
self . delegate = self
let bottomButtonsCenterOffset = SendMediaNavigationController . bottomButtonsCenterOffset
view . addSubview ( batchModeButton )
batchModeButton . setCompressionResistanceHigh ( )
batchModeButton . centerYAnchor . constraint ( equalTo : view . layoutMarginsGuide . bottomAnchor , constant : bottomButtonsCenterOffset ) . isActive = true
batchModeButton . autoPinEdge ( toSuperviewMargin : . trailing )
view . addSubview ( doneButton )
doneButton . setCompressionResistanceHigh ( )
doneButton . centerYAnchor . constraint ( equalTo : view . layoutMarginsGuide . bottomAnchor , constant : bottomButtonsCenterOffset ) . isActive = true
doneButton . autoPinEdge ( toSuperviewMargin : . trailing )
view . addSubview ( cameraModeButton )
cameraModeButton . setCompressionResistanceHigh ( )
cameraModeButton . centerYAnchor . constraint ( equalTo : view . layoutMarginsGuide . bottomAnchor , constant : bottomButtonsCenterOffset ) . isActive = true
cameraModeButton . autoPinEdge ( toSuperviewMargin : . leading )
view . addSubview ( mediaLibraryModeButton )
mediaLibraryModeButton . setCompressionResistanceHigh ( )
mediaLibraryModeButton . centerYAnchor . constraint ( equalTo : view . layoutMarginsGuide . bottomAnchor , constant : bottomButtonsCenterOffset ) . isActive = true
mediaLibraryModeButton . autoPinEdge ( toSuperviewMargin : . leading )
}
// MARK: -
public weak var sendMediaNavDelegate : SendMediaNavDelegate ?
@objc
public class func showingCameraFirst ( threadId : String ) -> SendMediaNavigationController {
let navController = SendMediaNavigationController ( threadId : threadId )
navController . viewControllers = [ navController . captureViewController ]
return navController
}
@objc
public class func showingMediaLibraryFirst ( threadId : String ) -> SendMediaNavigationController {
let navController = SendMediaNavigationController ( threadId : threadId )
navController . viewControllers = [ navController . mediaLibraryViewController ]
return navController
}
var isInBatchSelectMode = false {
didSet {
if oldValue != isInBatchSelectMode {
mediaLibraryViewController . batchSelectModeDidChange ( )
guard let topViewController = viewControllers . last else {
return
}
updateButtons ( topViewController : topViewController )
}
}
}
func updateButtons ( topViewController : UIViewController ) {
switch topViewController {
case is AttachmentApprovalViewController :
batchModeButton . isHidden = true
doneButton . isHidden = true
cameraModeButton . isHidden = true
mediaLibraryModeButton . isHidden = true
case is ImagePickerGridController :
batchModeButton . isHidden = isInBatchSelectMode
doneButton . isHidden = ! isInBatchSelectMode || ( attachmentDraftCollection . count = = 0 && mediaLibrarySelections . count = = 0 )
cameraModeButton . isHidden = false
mediaLibraryModeButton . isHidden = true
case is PhotoCaptureViewController :
batchModeButton . isHidden = isInBatchSelectMode
doneButton . isHidden = ! isInBatchSelectMode || ( attachmentDraftCollection . count = = 0 && mediaLibrarySelections . count = = 0 )
cameraModeButton . isHidden = true
mediaLibraryModeButton . isHidden = false
default :
owsFailDebug ( " unexpected topViewController: \( topViewController ) " )
}
doneButton . updateCount ( )
}
func fadeTo ( viewControllers : [ UIViewController ] ) {
let transition : CATransition = CATransition ( )
transition . duration = 0.1
transition . type = CATransitionType . fade
view . layer . add ( transition , forKey : nil )
setViewControllers ( viewControllers , animated : false )
}
// MARK: - E v e n t s
private func didTapBatchModeButton ( ) {
// T h e r e ' s n o w a y t o _ d i s a b l e _ b a t c h m o d e .
isInBatchSelectMode = true
}
private func didTapCameraModeButton ( ) {
self . ows_ask ( forCameraPermissions : { granted in
if ( granted ) {
self . fadeTo ( viewControllers : [ self . captureViewController ] )
}
} )
}
private func didTapMediaLibraryModeButton ( ) {
self . ows_ask ( forMediaLibraryPermissions : { granted in
if ( granted ) {
self . fadeTo ( viewControllers : [ self . mediaLibraryViewController ] )
}
} )
}
// MARK: V i e w s
public static let bottomButtonWidth : CGFloat = 44
private lazy var doneButton : DoneButton = {
let button = DoneButton ( )
button . delegate = self
button . setShadow ( )
return button
} ( )
private lazy var batchModeButton : UIButton = {
let button = OWSButton ( imageName : " media_send_batch_mode_disabled " ,
tintColor : . ows_gray60 ,
block : { [ weak self ] in self ? . didTapBatchModeButton ( ) } )
let width : CGFloat = type ( of : self ) . bottomButtonWidth
button . autoSetDimensions ( to : CGSize ( width : width , height : width ) )
button . layer . cornerRadius = width / 2
button . imageEdgeInsets = UIEdgeInsets ( top : 10 , left : 10 , bottom : 10 , right : 10 )
button . backgroundColor = . ows_white
button . setShadow ( )
return button
} ( )
private lazy var cameraModeButton : UIButton = {
let button = OWSButton ( imageName : " settings-avatar-camera-2 " ,
tintColor : . ows_gray60 ,
block : { [ weak self ] in self ? . didTapCameraModeButton ( ) } )
let width : CGFloat = type ( of : self ) . bottomButtonWidth
button . autoSetDimensions ( to : CGSize ( width : width , height : width ) )
button . layer . cornerRadius = width / 2
button . imageEdgeInsets = UIEdgeInsets ( top : 10 , left : 10 , bottom : 10 , right : 10 )
button . backgroundColor = . ows_white
button . setShadow ( )
return button
} ( )
private lazy var mediaLibraryModeButton : UIButton = {
let button = OWSButton ( imageName : " actionsheet_camera_roll_black " ,
tintColor : . ows_gray60 ,
block : { [ weak self ] in self ? . didTapMediaLibraryModeButton ( ) } )
let width : CGFloat = type ( of : self ) . bottomButtonWidth
button . autoSetDimensions ( to : CGSize ( width : width , height : width ) )
button . layer . cornerRadius = width / 2
button . imageEdgeInsets = UIEdgeInsets ( top : 10 , left : 10 , bottom : 10 , right : 10 )
button . backgroundColor = . ows_white
button . setShadow ( )
return button
} ( )
// MARK: S t a t e
private lazy var attachmentDraftCollection = AttachmentDraftCollection . empty // L a z y t o a v o i d h t t p s : / / b u g s . s w i f t . o r g / b r o w s e / S R - 6 6 5 7
private var attachments : [ SignalAttachment ] {
return attachmentDraftCollection . attachmentDrafts . map { $0 . attachment }
}
private lazy var mediaLibrarySelections = OrderedDictionary < PHAsset , MediaLibrarySelection > ( ) // L a z y t o a v o i d h t t p s : / / b u g s . s w i f t . o r g / b r o w s e / S R - 6 6 5 7
// MARK: C h i l d V C ' s
private lazy var captureViewController : PhotoCaptureViewController = {
let vc = PhotoCaptureViewController ( )
vc . delegate = self
return vc
} ( )
private lazy var mediaLibraryViewController : ImagePickerGridController = {
let vc = ImagePickerGridController ( )
vc . delegate = self
return vc
} ( )
private func pushApprovalViewController ( ) {
guard let sendMediaNavDelegate = self . sendMediaNavDelegate else {
owsFailDebug ( " sendMediaNavDelegate was unexpectedly nil " )
return
}
let approvalViewController = AttachmentApprovalViewController (
mode : . sharedNavigation ,
threadId : self . threadId ,
attachments : self . attachments
)
approvalViewController . approvalDelegate = self
approvalViewController . messageText = sendMediaNavDelegate . sendMediaNavInitialMessageText ( self )
pushViewController ( approvalViewController , animated : true )
}
private func didRequestExit ( dontAbandonText : String ) {
if attachmentDraftCollection . count = = 0 {
self . sendMediaNavDelegate ? . sendMediaNavDidCancel ( self )
} else {
let alertTitle = NSLocalizedString ( " SEND_MEDIA_ABANDON_TITLE " , comment : " alert title when user attempts to leave the send media flow when they have an in-progress album " )
let alert = UIAlertController ( title : alertTitle , message : nil , preferredStyle : . alert )
let confirmAbandonText = NSLocalizedString ( " SEND_MEDIA_CONFIRM_ABANDON_ALBUM " , comment : " alert action, confirming the user wants to exit the media flow and abandon any photos they've taken " )
let confirmAbandonAction = UIAlertAction ( title : confirmAbandonText ,
style : . destructive ,
handler : { [ weak self ] _ in
guard let self = self else { return }
self . sendMediaNavDelegate ? . sendMediaNavDidCancel ( self )
} )
alert . addAction ( confirmAbandonAction )
let dontAbandonAction = UIAlertAction ( title : dontAbandonText ,
style : . default ,
handler : { _ in } )
alert . addAction ( dontAbandonAction )
self . presentAlert ( alert )
}
}
}
extension SendMediaNavigationController : UINavigationControllerDelegate {
private func setNavBarBackgroundColor ( to color : UIColor ) {
guard let navBar = navigationBar as ? OWSNavigationBar else { return }
navBar . setBackgroundImage ( UIImage ( ) , for : UIBarMetrics . default )
navBar . shadowImage = UIImage ( )
navBar . isTranslucent = false
navBar . barTintColor = color
}
func navigationController ( _ navigationController : UINavigationController , willShow viewController : UIViewController , animated : Bool ) {
if viewController = = captureViewController {
setNavBarBackgroundColor ( to : . black )
} else {
setNavBarBackgroundColor ( to : Colors . navigationBarBackground )
}
switch viewController {
case is PhotoCaptureViewController :
if attachmentDraftCollection . count = = 1 && ! isInBatchSelectMode {
// U s e r i s n a v i g a t i n g " b a c k " t o t h e p r e v i o u s v i e w , i n d i c a t i n g
// t h e y w a n t t o d i s c a r d t h e p r e v i o u s l y c a p t u r e d i t e m
discardDraft ( )
}
case is ImagePickerGridController :
if attachmentDraftCollection . count = = 1 && ! isInBatchSelectMode {
isInBatchSelectMode = true
self . mediaLibraryViewController . batchSelectModeDidChange ( )
}
default :
break
}
self . updateButtons ( topViewController : viewController )
}
// I n c a s e b a c k n a v i g a t i o n w a s c a n c e l e d , w e r e - a p p l y w h a t e v e r i s s h o w i n g .
func navigationController ( _ navigationController : UINavigationController , didShow viewController : UIViewController , animated : Bool ) {
if viewController = = captureViewController {
setNavBarBackgroundColor ( to : . black )
} else {
setNavBarBackgroundColor ( to : Colors . navigationBarBackground )
}
self . updateButtons ( topViewController : viewController )
}
// MARK: - H e l p e r s
private func preferredNavbarTheme ( viewController : UIViewController ) -> OWSNavigationBar . NavigationBarThemeOverride ? {
switch viewController {
case is AttachmentApprovalViewController :
return . clear
case is ImagePickerGridController :
return . alwaysDark
case is PhotoCaptureViewController :
return . clear
default :
owsFailDebug ( " unexpected viewController: \( viewController ) " )
return nil
}
}
}
extension SendMediaNavigationController : PhotoCaptureViewControllerDelegate {
func photoCaptureViewController ( _ photoCaptureViewController : PhotoCaptureViewController , didFinishProcessingAttachment attachment : SignalAttachment ) {
attachmentDraftCollection . append ( . camera ( attachment : attachment ) )
if isInBatchSelectMode {
updateButtons ( topViewController : photoCaptureViewController )
} else {
pushApprovalViewController ( )
}
}
func photoCaptureViewControllerDidCancel ( _ photoCaptureViewController : PhotoCaptureViewController ) {
let dontAbandonText = NSLocalizedString ( " SEND_MEDIA_RETURN_TO_CAMERA " , comment : " alert action when the user decides not to cancel the media flow after all. " )
didRequestExit ( dontAbandonText : dontAbandonText )
}
func discardDraft ( ) {
assert ( attachmentDraftCollection . attachmentDrafts . count <= 1 )
if let lastAttachmentDraft = attachmentDraftCollection . attachmentDrafts . last {
attachmentDraftCollection . remove ( attachment : lastAttachmentDraft . attachment )
}
assert ( attachmentDraftCollection . attachmentDrafts . count = = 0 )
}
}
extension SendMediaNavigationController : ImagePickerGridControllerDelegate {
func imagePickerDidCompleteSelection ( _ imagePicker : ImagePickerGridController ) {
showApprovalAfterProcessingAnyMediaLibrarySelections ( )
}
func imagePickerDidCancel ( _ imagePicker : ImagePickerGridController ) {
let dontAbandonText = NSLocalizedString ( " SEND_MEDIA_RETURN_TO_MEDIA_LIBRARY " , comment : " alert action when the user decides not to cancel the media flow after all. " )
didRequestExit ( dontAbandonText : dontAbandonText )
}
func showApprovalAfterProcessingAnyMediaLibrarySelections ( ) {
let mediaLibrarySelections : [ MediaLibrarySelection ] = self . mediaLibrarySelections . orderedValues
let backgroundBlock : ( ModalActivityIndicatorViewController ) -> Void = { modal in
let attachmentPromises : [ Promise < MediaLibraryAttachment > ] = mediaLibrarySelections . map { $0 . promise }
when ( fulfilled : attachmentPromises ) . map { attachments in
Logger . debug ( " built all attachments " )
modal . dismiss {
self . attachmentDraftCollection . selectedFromPicker ( attachments : attachments )
self . pushApprovalViewController ( )
}
} . catch { error in
Logger . error ( " failed to prepare attachments. error: \( error ) " )
modal . dismiss {
OWSAlerts . showAlert ( title : NSLocalizedString ( " IMAGE_PICKER_FAILED_TO_PROCESS_ATTACHMENTS " , comment : " alert title " ) )
}
} . retainUntilComplete ( )
}
ModalActivityIndicatorViewController . present ( fromViewController : self ,
canCancel : false ,
backgroundBlock : backgroundBlock )
}
func imagePicker ( _ imagePicker : ImagePickerGridController , isAssetSelected asset : PHAsset ) -> Bool {
return mediaLibrarySelections . hasValue ( forKey : asset )
}
func imagePicker ( _ imagePicker : ImagePickerGridController , didSelectAsset asset : PHAsset , attachmentPromise : Promise < SignalAttachment > ) {
guard ! mediaLibrarySelections . hasValue ( forKey : asset ) else {
return
}
let libraryMedia = MediaLibrarySelection ( asset : asset , signalAttachmentPromise : attachmentPromise )
mediaLibrarySelections . append ( key : asset , value : libraryMedia )
updateButtons ( topViewController : imagePicker )
}
func imagePicker ( _ imagePicker : ImagePickerGridController , didDeselectAsset asset : PHAsset ) {
guard mediaLibrarySelections . hasValue ( forKey : asset ) else {
return
}
mediaLibrarySelections . remove ( key : asset )
updateButtons ( topViewController : imagePicker )
}
func imagePickerCanSelectAdditionalItems ( _ imagePicker : ImagePickerGridController ) -> Bool {
return attachmentDraftCollection . count <= SignalAttachment . maxAttachmentsAllowed
}
}
extension SendMediaNavigationController : AttachmentApprovalViewControllerDelegate {
func attachmentApproval ( _ attachmentApproval : AttachmentApprovalViewController , didChangeMessageText newMessageText : String ? ) {
sendMediaNavDelegate ? . sendMediaNav ( self , didChangeMessageText : newMessageText )
}
func attachmentApproval ( _ attachmentApproval : AttachmentApprovalViewController , didRemoveAttachment attachment : SignalAttachment ) {
guard let removedDraft = attachmentDraftCollection . attachmentDrafts . first ( where : { $0 . attachment = = attachment } ) else {
owsFailDebug ( " removedDraft was unexpectedly nil " )
return
}
switch removedDraft . source {
case . picker ( attachment : let pickerAttachment ) :
mediaLibrarySelections . remove ( key : pickerAttachment . asset )
case . camera ( attachment : _ ) :
break
}
attachmentDraftCollection . remove ( attachment : attachment )
}
func attachmentApproval ( _ attachmentApproval : AttachmentApprovalViewController , didApproveAttachments attachments : [ SignalAttachment ] , forThreadId threadId : String , messageText : String ? ) {
sendMediaNavDelegate ? . sendMediaNav ( self , didApproveAttachments : attachments , forThreadId : threadId , messageText : messageText )
}
func attachmentApprovalDidCancel ( _ attachmentApproval : AttachmentApprovalViewController ) {
sendMediaNavDelegate ? . sendMediaNavDidCancel ( self )
}
func attachmentApprovalDidTapAddMore ( _ attachmentApproval : AttachmentApprovalViewController ) {
// C u r r e n t d e s i g n d i c a t e s w e ' l l g o " b a c k " t o t h e s i n g l e t h i n g b e f o r e u s .
assert ( viewControllers . count = = 2 )
// r e g a r d l e s s o f w h i c h V C w e ' r e g o i n g " b a c k " t o , w e ' r e i n " b a t c h " m o d e a t t h i s p o i n t .
isInBatchSelectMode = true
mediaLibraryViewController . batchSelectModeDidChange ( )
popViewController ( animated : true )
}
}
private enum AttachmentDraft {
case camera ( attachment : SignalAttachment )
case picker ( attachment : MediaLibraryAttachment )
}
private extension AttachmentDraft {
var attachment : SignalAttachment {
switch self {
case . camera ( let cameraAttachment ) :
return cameraAttachment
case . picker ( let pickerAttachment ) :
return pickerAttachment . signalAttachment
}
}
var source : AttachmentDraft {
return self
}
}
private final class AttachmentDraftCollection {
lazy var attachmentDrafts = [ AttachmentDraft ] ( ) // L a z y t o a v o i d h t t p s : / / b u g s . s w i f t . o r g / b r o w s e / S R - 6 6 5 7
static var empty : AttachmentDraftCollection {
return AttachmentDraftCollection ( attachmentDrafts : [ ] )
}
init ( attachmentDrafts : [ AttachmentDraft ] ) {
self . attachmentDrafts = attachmentDrafts
}
// MARK: -
var count : Int {
return attachmentDrafts . count
}
var pickerAttachments : [ MediaLibraryAttachment ] {
return attachmentDrafts . compactMap { attachmentDraft in
switch attachmentDraft . source {
case . picker ( let pickerAttachment ) :
return pickerAttachment
case . camera :
return nil
}
}
}
var cameraAttachments : [ SignalAttachment ] {
return attachmentDrafts . compactMap { attachmentDraft in
switch attachmentDraft . source {
case . picker :
return nil
case . camera ( let cameraAttachment ) :
return cameraAttachment
}
}
}
func append ( _ element : AttachmentDraft ) {
attachmentDrafts . append ( element )
}
func remove ( attachment : SignalAttachment ) {
attachmentDrafts . removeAll { $0 . attachment = = attachment }
}
func selectedFromPicker ( attachments : [ MediaLibraryAttachment ] ) {
let pickedAttachments : Set < MediaLibraryAttachment > = Set ( attachments )
let oldPickerAttachments : Set < MediaLibraryAttachment > = Set ( self . pickerAttachments )
for removedAttachment in oldPickerAttachments . subtracting ( pickedAttachments ) {
remove ( attachment : removedAttachment . signalAttachment )
}
// e n u m e r a t e o v e r n e w a t t a c h m e n t s t o m a i n t a i n o r d e r f r o m p i c k e r
for attachment in attachments {
guard ! oldPickerAttachments . contains ( attachment ) else {
continue
}
append ( . picker ( attachment : attachment ) )
}
}
}
private struct MediaLibrarySelection : Hashable , Equatable {
let asset : PHAsset
let signalAttachmentPromise : Promise < SignalAttachment >
var hashValue : Int {
return asset . hashValue
}
var promise : Promise < MediaLibraryAttachment > {
let asset = self . asset
return signalAttachmentPromise . map { signalAttachment in
return MediaLibraryAttachment ( asset : asset , signalAttachment : signalAttachment )
}
}
static func = = ( lhs : MediaLibrarySelection , rhs : MediaLibrarySelection ) -> Bool {
return lhs . asset = = rhs . asset
}
}
private struct MediaLibraryAttachment : Hashable , Equatable {
let asset : PHAsset
let signalAttachment : SignalAttachment
public var hashValue : Int {
return asset . hashValue
}
public static func = = ( lhs : MediaLibraryAttachment , rhs : MediaLibraryAttachment ) -> Bool {
return lhs . asset = = rhs . asset
}
}
extension SendMediaNavigationController : DoneButtonDelegate {
var doneButtonCount : Int {
return attachmentDraftCollection . count - attachmentDraftCollection . pickerAttachments . count + mediaLibrarySelections . count
}
fileprivate func doneButtonWasTapped ( _ doneButton : DoneButton ) {
assert ( attachmentDraftCollection . count > 0 || mediaLibrarySelections . count > 0 )
showApprovalAfterProcessingAnyMediaLibrarySelections ( )
}
}
private protocol DoneButtonDelegate : AnyObject {
func doneButtonWasTapped ( _ doneButton : DoneButton )
var doneButtonCount : Int { get }
}
private class DoneButton : UIView {
weak var delegate : DoneButtonDelegate ?
init ( ) {
super . init ( frame : . zero )
let tapGesture = UITapGestureRecognizer ( target : self , action : #selector ( didTap ( tapGesture : ) ) )
addGestureRecognizer ( tapGesture )
let container = UIView ( )
container . backgroundColor = . ows_white
container . layer . cornerRadius = 20
container . layoutMargins = UIEdgeInsets ( top : 7 , leading : 8 , bottom : 7 , trailing : 8 )
addSubview ( container )
container . autoPinEdgesToSuperviewMargins ( )
let stackView = UIStackView ( arrangedSubviews : [ badge , chevron ] )
stackView . axis = . horizontal
stackView . alignment = . center
stackView . spacing = 9
container . addSubview ( stackView )
stackView . autoPinEdgesToSuperviewMargins ( )
}
let numberFormatter : NumberFormatter = NumberFormatter ( )
func updateCount ( ) {
guard let delegate = delegate else {
return
}
badgeLabel . text = numberFormatter . string ( for : delegate . doneButtonCount )
}
required init ? ( coder aDecoder : NSCoder ) {
fatalError ( " init(coder:) has not been implemented " )
}
// MARK: - S u b v i e w s
private lazy var badge : UIView = {
let badge = CircleView ( )
badge . layoutMargins = UIEdgeInsets ( top : 4 , leading : 4 , bottom : 4 , trailing : 4 )
badge . backgroundColor = . ows_signalBlue
badge . addSubview ( badgeLabel )
badgeLabel . autoPinEdgesToSuperviewMargins ( )
// C o n s t r a i n t o b e a p i l l t h a t i s a t l e a s t a c i r c l e , a n d m a y b e w i d e r .
badgeLabel . autoPin ( toAspectRatio : 1.0 , relation : . greaterThanOrEqual )
NSLayoutConstraint . autoSetPriority ( . defaultLow ) {
badgeLabel . autoPinToSquareAspectRatio ( )
}
return badge
} ( )
private lazy var badgeLabel : UILabel = {
let label = UILabel ( )
label . textColor = . ows_white
label . font = UIFont . ows_dynamicTypeSubheadline . ows_monospaced ( )
label . textAlignment = . center
return label
} ( )
private lazy var chevron : UIView = {
let image : UIImage
if CurrentAppContext ( ) . isRTL {
image = # imageLiteral ( resourceName : " small_chevron_left " )
} else {
image = # imageLiteral ( resourceName : " small_chevron_right " )
}
let chevron = UIImageView ( image : image . withRenderingMode ( . alwaysTemplate ) )
chevron . contentMode = . scaleAspectFit
chevron . tintColor = . ows_gray60
chevron . autoSetDimensions ( to : CGSize ( width : 10 , height : 18 ) )
return chevron
} ( )
@objc
func didTap ( tapGesture : UITapGestureRecognizer ) {
delegate ? . doneButtonWasTapped ( self )
}
}
// MARK: - S e n d M e d i a N a v D e l e g a t e
protocol SendMediaNavDelegate : AnyObject {
func sendMediaNavDidCancel ( _ sendMediaNavigationController : SendMediaNavigationController )
func sendMediaNav ( _ sendMediaNavigationController : SendMediaNavigationController , didApproveAttachments attachments : [ SignalAttachment ] , forThreadId threadId : String , messageText : String ? )
func sendMediaNavInitialMessageText ( _ sendMediaNavigationController : SendMediaNavigationController ) -> String ?
func sendMediaNav ( _ sendMediaNavigationController : SendMediaNavigationController , didChangeMessageText newMessageText : String ? )
}
