//
// NCSectionHeaderFooter.swift
// Nextcloud
//
// Created by Marino Faggiana on 09/10/2018.
// Copyright © 2018 Marino Faggiana. All rights reserved.
//
// Author Marino Faggiana <marino.faggiana@nextcloud.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
import UIKit
import MarkdownKit
class NCSectionHeaderMenu: UICollectionReusableView, UIGestureRecognizerDelegate {
@IBOutlet weak var buttonSwitch: UIButton!
@IBOutlet weak var buttonOrder: UIButton!
@IBOutlet weak var buttonMore: UIButton!
@IBOutlet weak var buttonTransfer: UIButton!
@IBOutlet weak var imageButtonTransfer: UIImageView!
@IBOutlet weak var labelTransfer: UILabel!
@IBOutlet weak var progressTransfer: UIProgressView!
@IBOutlet weak var transferSeparatorBottom: UIView!
@IBOutlet weak var textViewRichWorkspace: UITextView!
@IBOutlet weak var labelSection: UILabel!
@IBOutlet weak var viewTransfer: UIView!
@IBOutlet weak var viewButtonsView: UIView!
@IBOutlet weak var viewSeparator: UIView!
@IBOutlet weak var viewRichWorkspace: UIView!
@IBOutlet weak var viewSection: UIView!
@IBOutlet weak var viewTransferHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var viewButtonsViewHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var viewSeparatorHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var viewRichWorkspaceHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var viewSectionHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var transferSeparatorBottomHeightConstraint: NSLayoutConstraint!
weak var delegate: NCSectionHeaderMenuDelegate?
private var markdownParser = MarkdownParser()
private var richWorkspaceText: String?
private var textViewColor: UIColor?
private let gradient: CAGradientLayer = CAGradientLayer()
override func awakeFromNib() {
super.awakeFromNib()
backgroundColor = .clear
buttonSwitch.setImage(UIImage(systemName: "list.bullet")!.image(color: .systemGray, size: 25), for: .normal)
buttonOrder.setTitle("", for: .normal)
buttonOrder.setTitleColor(.systemBlue, for: .normal)
buttonMore.setImage(UIImage(named: "more")!.image(color: .systemGray, size: 25), for: .normal)
// Gradient
gradient.startPoint = CGPoint(x: 0, y: 0.50)
gradient.endPoint = CGPoint(x: 0, y: 1)
viewRichWorkspace.layer.addSublayer(gradient)
let tap = UITapGestureRecognizer(target: self, action: #selector(touchUpInsideViewRichWorkspace(_:)))
tap.delegate = self
viewRichWorkspace?.addGestureRecognizer(tap)
viewSeparatorHeightConstraint.constant = 0.5
viewSeparator.backgroundColor = .separator
markdownParser = MarkdownParser(font: UIFont.systemFont(ofSize: 15), color: .label)
markdownParser.header.font = UIFont.systemFont(ofSize: 25)
if let richWorkspaceText = richWorkspaceText {
textViewRichWorkspace.attributedText = markdownParser.parse(richWorkspaceText)
}
textViewColor = .label
labelSection.text = ""
viewSectionHeightConstraint.constant = 0
buttonTransfer.backgroundColor = .clear
buttonTransfer.setImage(nil, for: .normal)
buttonTransfer.layer.cornerRadius = 6
buttonTransfer.layer.masksToBounds = true
imageButtonTransfer.image = UIImage(systemName: "stop.circle")
imageButtonTransfer.tintColor = .white
labelTransfer.text = ""
progressTransfer.progress = 0
progressTransfer.tintColor = NCBrandColor.shared.brand
progressTransfer.trackTintColor = NCBrandColor.shared.brand.withAlphaComponent(0.2)
transferSeparatorBottom.backgroundColor = .separator
transferSeparatorBottomHeightConstraint.constant = 0.5
}
override func layoutSublayers(of layer: CALayer) {
super.layoutSublayers(of: layer)
gradient.frame = viewRichWorkspace.bounds
setInterfaceColor()
}
override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
super.traitCollectionDidChange(previousTraitCollection)
setInterfaceColor()
}
// MARK: - View
func setStatusButtonsView(enable: Bool) {
buttonSwitch.isEnabled = enable
buttonOrder.isEnabled = enable
buttonMore.isEnabled = enable
}
func buttonMoreIsHidden(_ isHidden: Bool) {
buttonMore.isHidden = isHidden
}
func setImageSwitchList() {
buttonSwitch.setImage(UIImage(systemName: "list.bullet")!.image(color: .systemGray, width: 20, height: 15), for: .normal)
}
func setImageSwitchGrid() {
buttonSwitch.setImage(UIImage(systemName: "square.grid.2x2")!.image(color: .systemGray, size: 20), for: .normal)
}
func setButtonsView(height: CGFloat) {
viewButtonsViewHeightConstraint.constant = height
if height == 0 {
viewButtonsView.isHidden = true
} else {
viewButtonsView.isHidden = false
}
}
func setSortedTitle(_ title: String) {
let title = NSLocalizedString(title, comment: "")
buttonOrder.setTitle(title, for: .normal)
}
// MARK: - RichWorkspace
func setRichWorkspaceHeight(_ size: CGFloat) {
viewRichWorkspaceHeightConstraint.constant = size
if size == 0 {
viewRichWorkspace.isHidden = true
} else {
viewRichWorkspace.isHidden = false
}
}
func setInterfaceColor() {
if traitCollection.userInterfaceStyle == .dark {
gradient.colors = [UIColor(white: 0, alpha: 0).cgColor, UIColor.black.cgColor]
} else {
gradient.colors = [UIColor(white: 1, alpha: 0).cgColor, UIColor.white.cgColor]
}
}
func setRichWorkspaceText(_ text: String?) {
guard let text = text else { return }
if text != self.richWorkspaceText {
textViewRichWorkspace.attributedText = markdownParser.parse(text)
self.richWorkspaceText = text
}
}
// MARK: - Transfer
func setViewTransfer(isHidden: Bool, ocId: String? = nil, text: String? = nil, progress: Float? = nil) {
labelTransfer.text = text
viewTransfer.isHidden = isHidden
progressTransfer.progress = 0
if isHidden {
viewTransferHeightConstraint.constant = 0
} else {
var image: UIImage?
if let ocId,
let metadata = NCManageDatabase.shared.getMetadataFromOcId(ocId) {
image = NCUtility.shared.createFilePreviewImage(ocId: metadata.ocId, etag: metadata.etag, fileNameView: metadata.fileNameView, classFile: metadata.classFile, status: metadata.status, createPreviewMedia: true)?.darken()
if image == nil {
image = UIImage(named: metadata.iconName)
buttonTransfer.backgroundColor = .lightGray
} else {
buttonTransfer.backgroundColor = .clear
}
buttonTransfer.setImage(image, for: .normal)
}
viewTransferHeightConstraint.constant = NCGlobal.shared.heightHeaderTransfer
if let progress {
progressTransfer.progress = progress
}
}
}
// MARK: - Section
func setSectionHeight(_ size: CGFloat) {
viewSectionHeightConstraint.constant = size
if size == 0 {
viewSection.isHidden = true
} else {
viewSection.isHidden = false
}
}
// MARK: - Action
@IBAction func touchUpInsideSwitch(_ sender: Any) {
delegate?.tapButtonSwitch(sender)
}
@IBAction func touchUpInsideOrder(_ sender: Any) {
delegate?.tapButtonOrder(sender)
}
@IBAction func touchUpInsideMore(_ sender: Any) {
delegate?.tapButtonMore(sender)
}
@IBAction func touchUpTransfer(_ sender: Any) {
delegate?.tapButtonTransfer(sender)
}
@objc func touchUpInsideViewRichWorkspace(_ sender: Any) {
delegate?.tapRichWorkspace(sender)
}
}
protocol NCSectionHeaderMenuDelegate: AnyObject {
func tapButtonSwitch(_ sender: Any)
func tapButtonOrder(_ sender: Any)
func tapButtonMore(_ sender: Any)
func tapButtonTransfer(_ sender: Any)
func tapRichWorkspace(_ sender: Any)
}
// optional func
extension NCSectionHeaderMenuDelegate {
func tapButtonSwitch(_ sender: Any) {}
func tapButtonOrder(_ sender: Any) {}
func tapButtonMore(_ sender: Any) {}
func tapButtonTransfer(_ sender: Any) {}
func tapRichWorkspace(_ sender: Any) {}
}
class NCSectionHeader: UICollectionReusableView {
@IBOutlet weak var labelSection: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
self.backgroundColor = UIColor.clear
self.labelSection.text = ""
}
}
class NCSectionFooter: UICollectionReusableView, NCSectionFooterDelegate {
@IBOutlet weak var buttonSection: UIButton!
@IBOutlet weak var activityIndicatorSection: UIActivityIndicatorView!
@IBOutlet weak var labelSection: UILabel!
@IBOutlet weak var separator: UIView!
@IBOutlet weak var separatorHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var buttonSectionHeightConstraint: NSLayoutConstraint!
weak var delegate: NCSectionFooterDelegate?
var metadataForSection: NCMetadataForSection?
override func awakeFromNib() {
super.awakeFromNib()
self.backgroundColor = UIColor.clear
labelSection.textColor = UIColor.systemGray
labelSection.text = ""
separator.backgroundColor = .separator
separatorHeightConstraint.constant = 0.5
buttonIsHidden(true)
activityIndicatorSection.isHidden = true
activityIndicatorSection.color = .label
}
func setTitleLabel(directories: Int, files: Int, size: Int64) {
var foldersText = ""
var filesText = ""
if directories > 1 {
foldersText = "\(directories) " + NSLocalizedString("_folders_", comment: "")
} else if directories == 1 {
foldersText = "1 " + NSLocalizedString("_folder_", comment: "")
}
if files > 1 {
filesText = "\(files) " + NSLocalizedString("_files_", comment: "") + " " + CCUtility.transformedSize(size)
} else if files == 1 {
filesText = "1 " + NSLocalizedString("_file_", comment: "") + " " + CCUtility.transformedSize(size)
}
if foldersText.isEmpty {
labelSection.text = filesText
} else if filesText.isEmpty {
labelSection.text = foldersText
} else {
labelSection.text = foldersText + ", " + filesText
}
}
func setTitleLabel(_ text: String) {
labelSection.text = text
}
func setButtonText(_ text: String) {
buttonSection.setTitle(text, for: .normal)
}
func separatorIsHidden(_ isHidden: Bool) {
separator.isHidden = isHidden
}
func buttonIsHidden(_ isHidden: Bool) {
buttonSection.isHidden = isHidden
if isHidden {
buttonSectionHeightConstraint.constant = 0
} else {
buttonSectionHeightConstraint.constant = NCGlobal.shared.heightFooterButton
}
}
func showActivityIndicatorSection() {
buttonSection.isHidden = true
buttonSectionHeightConstraint.constant = NCGlobal.shared.heightFooterButton
activityIndicatorSection.isHidden = false
activityIndicatorSection.startAnimating()
}
func hideActivityIndicatorSection() {
activityIndicatorSection.stopAnimating()
activityIndicatorSection.isHidden = true
}
// MARK: - Action
@IBAction func touchUpInsideButton(_ sender: Any) {
delegate?.tapButtonSection(sender, metadataForSection: metadataForSection)
}
}
protocol NCSectionFooterDelegate: AnyObject {
func tapButtonSection(_ sender: Any, metadataForSection: NCMetadataForSection?)
}
// optional func
extension NCSectionFooterDelegate {
func tapButtonSection(_ sender: Any, metadataForSection: NCMetadataForSection?) {}
}
// https://stackoverflow.com/questions/16278463/darken-an-uiimage
public extension UIImage {
private enum BlendMode {
case multiply // This results in colors that are at least as dark as either of the two contributing sample colors
case screen // This results in colors that are at least as light as either of the two contributing sample colors
}
// A level of zero yeilds the original image, a level of 1 results in black
func darken(level: CGFloat = 0.5) -> UIImage? {
return blend(mode: .multiply, level: level)
}
// A level of zero yeilds the original image, a level of 1 results in white
func lighten(level: CGFloat = 0.5) -> UIImage? {
return blend(mode: .screen, level: level)
}
private func blend(mode: BlendMode, level: CGFloat) -> UIImage? {
let context = CIContext(options: nil)
var level = level
if level < 0 {
level = 0
} else if level > 1 {
level = 1
}
let filterName: String
switch mode {
case .multiply: // As the level increases we get less white
level = abs(level - 1.0)
filterName = "CIMultiplyBlendMode"
case .screen: // As the level increases we get more white
filterName = "CIScreenBlendMode"
}
let blender = CIFilter(name: filterName)!
let backgroundColor = CIColor(color: UIColor(white: level, alpha: 1))
guard let inputImage = CIImage(image: self) else { return nil }
blender.setValue(inputImage, forKey: kCIInputImageKey)
guard let backgroundImageGenerator = CIFilter(name: "CIConstantColorGenerator") else { return nil }
backgroundImageGenerator.setValue(backgroundColor, forKey: kCIInputColorKey)
guard let backgroundImage = backgroundImageGenerator.outputImage?.cropped(to: CGRect(origin: CGPoint.zero, size: self.size)) else { return nil }
blender.setValue(backgroundImage, forKey: kCIInputBackgroundImageKey)
guard let blendedImage = blender.outputImage else { return nil }
guard let cgImage = context.createCGImage(blendedImage, from: blendedImage.extent) else { return nil }
return UIImage(cgImage: cgImage)
}
}