119 lines
3.3 KiB
Swift
119 lines
3.3 KiB
Swift
// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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import Foundation
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import SessionMessagingKit
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import SignalCoreKit
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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.themeBackgroundColor = .backgroundSecondary
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let iconView = UIImageView(image: #imageLiteral(resourceName: "ic_plus_24").withRenderingMode(.alwaysTemplate))
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iconView.themeTintColor = .textPrimary
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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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func isEqual(to other: GalleryRailItem?) -> Bool {
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return (other is AddMoreRailItem)
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}
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}
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class SignalAttachmentItem: Hashable {
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enum SignalAttachmentItemError: Error {
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case noThumbnail
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}
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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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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 ImageEditorModel.isFeatureEnabled,
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let dataUrl: URL = attachment.dataUrl,
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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 attachment.staticThumbnail()
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}
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// MARK: Hashable
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func hash(into hasher: inout Hasher) {
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attachment.hash(into: &hasher)
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}
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// MARK: Equatable
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static func == (lhs: SignalAttachmentItem, rhs: SignalAttachmentItem) -> 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 AttachmentItemCollection {
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private (set) var attachmentItems: [SignalAttachmentItem]
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let isAddMoreVisible: Bool
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init(attachmentItems: [SignalAttachmentItem], isAddMoreVisible: Bool) {
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self.attachmentItems = attachmentItems
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self.isAddMoreVisible = isAddMoreVisible
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}
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func itemAfter(item: SignalAttachmentItem) -> SignalAttachmentItem? {
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guard let currentIndex = attachmentItems.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 = attachmentItems.index(after: currentIndex)
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return attachmentItems[safe: nextIndex]
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}
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func itemBefore(item: SignalAttachmentItem) -> SignalAttachmentItem? {
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guard let currentIndex = attachmentItems.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 = attachmentItems.index(before: currentIndex)
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return attachmentItems[safe: prevIndex]
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}
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func remove(item: SignalAttachmentItem) {
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attachmentItems = attachmentItems.filter { $0 != item }
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}
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var count: Int {
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return attachmentItems.count
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}
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}
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