89 lines
3.2 KiB
Swift
89 lines
3.2 KiB
Swift
//
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// AttachmentsContainerView.swift
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// Tusker
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//
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// Created by Shadowfacts on 6/16/19.
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// Copyright © 2019 Shadowfacts. All rights reserved.
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//
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import UIKit
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import Pachyderm
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class AttachmentsContainerView: UIView {
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var delegate: AttachmentViewDelegate?
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override func awakeFromNib() {
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super.awakeFromNib()
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self.isUserInteractionEnabled = true
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}
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func updateUI(status: Status) {
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let attachments = status.attachments.filter { $0.kind == .image }
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if attachments.count > 0 {
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self.isHidden = false
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let mainView: UIView
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switch attachments.count {
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case 1:
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mainView = createAttachmentView(attachments[0])
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case 2:
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mainView = createAttachmentsStack(axis: .horizontal, arrangedSubviews: [
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createAttachmentView(attachments[0]),
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createAttachmentView(attachments[1])
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])
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case 3:
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mainView = createAttachmentsStack(axis: .horizontal, arrangedSubviews: [
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createAttachmentView(attachments[0]),
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createAttachmentsStack(axis: .vertical, arrangedSubviews: [
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createAttachmentView(attachments[1]),
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createAttachmentView(attachments[2])
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])
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])
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case 4:
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mainView = createAttachmentsStack(axis: .horizontal, arrangedSubviews: [
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createAttachmentsStack(axis: .vertical, arrangedSubviews: [
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createAttachmentView(attachments[0]),
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createAttachmentView(attachments[2])
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]),
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createAttachmentsStack(axis: .vertical, arrangedSubviews: [
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createAttachmentView(attachments[1]),
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createAttachmentView(attachments[3])
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])
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])
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default:
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fatalError("Too many attachments")
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}
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addSubview(mainView)
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NSLayoutConstraint.activate([
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mainView.leadingAnchor.constraint(equalTo: leadingAnchor),
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mainView.trailingAnchor.constraint(equalTo: trailingAnchor),
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mainView.topAnchor.constraint(equalTo: topAnchor),
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mainView.bottomAnchor.constraint(equalTo: bottomAnchor)
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])
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} else {
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self.isHidden = true
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subviews.forEach { $0.removeFromSuperview() }
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}
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}
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private func createAttachmentView(_ attachment: Attachment) -> AttachmentView {
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let attachmentView = AttachmentView(attachment: attachment)
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attachmentView.delegate = delegate
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attachmentView.translatesAutoresizingMaskIntoConstraints = false
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return attachmentView
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}
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private func createAttachmentsStack(axis: NSLayoutConstraint.Axis, arrangedSubviews: [UIView]) -> UIStackView {
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let stack = UIStackView(arrangedSubviews: arrangedSubviews)
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stack.axis = axis
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stack.spacing = 8
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stack.translatesAutoresizingMaskIntoConstraints = false
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return stack
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}
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}
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