//
// NCMainTabBar.swift
// Nextcloud
//
// Created by Marino Faggiana on 06/01/2020.
// Copyright © 2020 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 NextcloudKit
class NCMainTabBar: UITabBar {
private var fillColor: UIColor!
private var shapeLayer: CALayer?
private let appDelegate = UIApplication.shared.delegate as! AppDelegate
private let centerButtonY: CGFloat = -28
public var menuRect: CGRect {
get {
let tabBarItemWidth = Int(self.frame.size.width) / (self.items?.count ?? 0)
let rect = CGRect(x: 0, y: -5, width: tabBarItemWidth, height: Int(self.frame.size.height))
return rect
}
}
// MARK: - Life Cycle
required init?(coder: NSCoder) {
super.init(coder: coder)
appDelegate.mainTabBar = self
NotificationCenter.default.addObserver(self, selector: #selector(changeTheming), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterChangeTheming), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(updateBadgeNumber(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterUpdateBadgeNumber), object: nil)
barTintColor = .secondarySystemBackground
backgroundColor = .secondarySystemBackground
changeTheming()
}
@objc func changeTheming() {
tintColor = NCBrandColor.shared.brandElement
if let centerButton = self.viewWithTag(99) {
centerButton.backgroundColor = NCBrandColor.shared.brandElement
}
}
override var backgroundColor: UIColor? {
get {
return self.fillColor
}
set {
fillColor = newValue
self.setNeedsDisplay()
}
}
override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
let button = self.viewWithTag(99)
if self.bounds.contains(point) || (button != nil && button!.frame.contains(point)) {
return true
} else {
return false
}
}
override func layoutSubviews() {
super.layoutSubviews()
layer.shadowPath = createPath()
layer.shadowRadius = 5
layer.shadowOffset = .zero
layer.shadowOpacity = 0.25
}
override func draw(_ rect: CGRect) {
addShape()
createButtons()
}
private func addShape() {
let shapeLayer = CAShapeLayer()
shapeLayer.path = createPath()
shapeLayer.fillColor = backgroundColor?.cgColor
shapeLayer.strokeColor = UIColor.clear.cgColor
if let oldShapeLayer = self.shapeLayer {
self.layer.replaceSublayer(oldShapeLayer, with: shapeLayer)
} else {
self.layer.insertSublayer(shapeLayer, at: 0)
}
self.shapeLayer = shapeLayer
}
private func createPath() -> CGPath {
let height: CGFloat = 28
let margin: CGFloat = 6
let path = UIBezierPath()
let centerWidth = self.frame.width / 2
path.move(to: CGPoint(x: 0, y: 0)) // start top left
path.addLine(to: CGPoint(x: (centerWidth - height - margin), y: 0)) // the beginning of the trough
// first curve down
path.addArc(withCenter: CGPoint(x: centerWidth, y: 0), radius: height + margin, startAngle: CGFloat(180 * Double.pi / 180), endAngle: CGFloat(0 * Double.pi / 180), clockwise: false)
// complete the rect
path.addLine(to: CGPoint(x: self.frame.width, y: 0))
path.addLine(to: CGPoint(x: self.frame.width, y: self.frame.height))
path.addLine(to: CGPoint(x: 0, y: self.frame.height))
path.close()
return path.cgPath
}
private func createButtons() {
// File
if let item = items?[0] {
item.title = NSLocalizedString("_home_", comment: "")
item.image = UIImage(named: "tabBarFiles")?.image(color: NCBrandColor.shared.brandElement, size: 25)
item.selectedImage = item.image
}
// Favorite
if let item = items?[1] {
item.title = NSLocalizedString("_favorites_", comment: "")
item.image = UIImage(named: "star.fill")?.image(color: NCBrandColor.shared.brandElement, size: 25)
item.selectedImage = item.image
}
// +
if let item = items?[2] {
item.title = ""
item.image = nil
item.isEnabled = false
}
// Media
if let item = items?[3] {
item.title = NSLocalizedString("_media_", comment: "")
item.image = UIImage(named: "media")?.image(color: NCBrandColor.shared.brandElement, size: 25)
item.selectedImage = item.image
}
// More
if let item = items?[4] {
item.title = NSLocalizedString("_more_", comment: "")
item.image = UIImage(named: "tabBarMore")?.image(color: NCBrandColor.shared.brandElement, size: 25)
item.selectedImage = item.image
}
// Center button
if let centerButton = self.viewWithTag(99) {
centerButton.removeFromSuperview()
}
let centerButtonHeight: CGFloat = 57
let centerButton = UIButton(frame: CGRect(x: (self.bounds.width / 2)-(centerButtonHeight/2), y: centerButtonY, width: centerButtonHeight, height: centerButtonHeight))
centerButton.setTitle("", for: .normal)
centerButton.setImage(UIImage(named: "tabBarPlus")?.image(color: .white, size: 100), for: .normal)
centerButton.backgroundColor = NCBrandColor.shared.brandElement
centerButton.tintColor = UIColor.white
centerButton.tag = 99
centerButton.accessibilityLabel = NSLocalizedString("_accessibility_add_upload_", comment: "")
centerButton.layer.cornerRadius = centerButton.frame.size.width / 2.0
centerButton.layer.masksToBounds = false
centerButton.layer.shadowOffset = CGSize(width: 0, height: 0)
centerButton.layer.shadowRadius = 3.0
centerButton.layer.shadowOpacity = 0.5
centerButton.action(for: .touchUpInside) { _ in
if let directory = NCManageDatabase.shared.getTableDirectory(predicate: NSPredicate(format: "account == %@ AND serverUrl == %@", self.appDelegate.account, self.appDelegate.activeServerUrl)) {
if !directory.permissions.contains("CK") {
let error = NKError(errorCode: NCGlobal.shared.errorInternalError, errorDescription: "_no_permission_add_file_")
NCContentPresenter.shared.showWarning(error: error)
return
}
}
if let viewController = self.window?.rootViewController {
self.appDelegate.toggleMenu(viewController: viewController)
}
}
self.addSubview(centerButton)
}
@objc func updateBadgeNumber(_ notification: NSNotification) {
guard let userInfo = notification.userInfo as NSDictionary?,
let counter = userInfo["counter"] as? Int
else { return }
UIApplication.shared.applicationIconBadgeNumber = counter
if let item = self.items?[0] {
if counter > 0 {
item.badgeValue = String(counter)
} else {
item.badgeValue = nil
}
}
}
func getCenterButton() -> UIView? {
if let centerButton = self.viewWithTag(99) {
return centerButton
} else {
return nil
}
}
func getHight() -> CGFloat {
return (frame.size.height - centerButtonY)
}
}