121 lines
3.4 KiB
Swift
121 lines
3.4 KiB
Swift
//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import PromiseKit
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class AddMoreRailItem: GalleryRailItem {
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func buildRailItemView() -> UIView {
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let view = UIView()
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view.backgroundColor = UIColor.black.withAlphaComponent(0.33)
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let iconView = UIImageView(image: #imageLiteral(resourceName: "plus-24").withRenderingMode(.alwaysTemplate))
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iconView.tintColor = .ows_white
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view.addSubview(iconView)
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iconView.setCompressionResistanceHigh()
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iconView.setContentHuggingHigh()
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iconView.autoCenterInSuperview()
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return view
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}
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}
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extension AddMoreRailItem: Equatable {
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static func == (lhs: AddMoreRailItem, rhs: AddMoreRailItem) -> Bool {
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return true
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}
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}
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public class AttachmentApprovalItem: Hashable {
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enum AttachmentApprovalItemError: Error {
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case noThumbnail
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}
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public let attachment: SignalAttachment
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// This might be nil if the attachment is not a valid image.
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var imageEditorModel: ImageEditorModel?
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public init(attachment: SignalAttachment) {
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self.attachment = attachment
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// Try and make a ImageEditorModel.
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// This will only apply for valid images.
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if let dataUrl: URL = attachment.dataUrl, dataUrl.isFileURL {
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let path = dataUrl.path
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do {
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imageEditorModel = try ImageEditorModel(srcImagePath: path)
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} catch {
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// Usually not an error; this usually indicates invalid input.
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Logger.warn("Could not create image editor: \(error)")
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}
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}
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}
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// MARK:
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var captionText: String? {
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return attachment.captionText
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}
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func getThumbnailImage() -> UIImage? {
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return self.attachment.staticThumbnail()
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}
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// MARK: Hashable
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public func hash(into hasher: inout Hasher) {
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return hasher.combine(attachment)
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}
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// MARK: Equatable
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public static func == (lhs: AttachmentApprovalItem, rhs: AttachmentApprovalItem) -> Bool {
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return lhs.attachment == rhs.attachment
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}
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}
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// MARK: -
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class AttachmentApprovalItemCollection {
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private (set) var attachmentApprovalItems: [AttachmentApprovalItem]
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let isAddMoreVisible: () -> Bool
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init(attachmentApprovalItems: [AttachmentApprovalItem], isAddMoreVisible: @escaping () -> Bool) {
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self.attachmentApprovalItems = attachmentApprovalItems
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self.isAddMoreVisible = isAddMoreVisible
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}
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func itemAfter(item: AttachmentApprovalItem) -> AttachmentApprovalItem? {
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guard let currentIndex = attachmentApprovalItems.firstIndex(of: item) else {
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owsFailDebug("currentIndex was unexpectedly nil")
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return nil
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}
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let nextIndex = attachmentApprovalItems.index(after: currentIndex)
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return attachmentApprovalItems[safe: nextIndex]
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}
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func itemBefore(item: AttachmentApprovalItem) -> AttachmentApprovalItem? {
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guard let currentIndex = attachmentApprovalItems.firstIndex(of: item) else {
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owsFailDebug("currentIndex was unexpectedly nil")
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return nil
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}
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let prevIndex = attachmentApprovalItems.index(before: currentIndex)
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return attachmentApprovalItems[safe: prevIndex]
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}
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func remove(item: AttachmentApprovalItem) {
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attachmentApprovalItems = attachmentApprovalItems.filter { $0 != item }
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}
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var count: Int {
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return attachmentApprovalItems.count
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}
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}
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