Swift 4.2 版本（无工具栏）。
背后的想法：
- 我们调整标准窗口按钮的框架而不更改超级视图。
- 为了防止剪裁，我们需要增加标题栏的高度。这可以通过添加透明标题栏附件来实现。
- 当窗口进入全屏模式时，我们隐藏标题栏附件。
- 当窗口退出全屏时，我们显示标题栏附件。
- 此外，我们需要调整在全屏模式下标准按钮旁边显示的 UI 元素的布局。
普通屏幕。
全屏模式。
实际应用
文件 FullContentWindow.swift
public class FullContentWindow: Window {
private var buttons: [NSButton] = []
public let titleBarAccessoryViewController = TitlebarAccessoryViewController()
private lazy var titleBarHeight = calculatedTitleBarHeight
private let titleBarLeadingOffset: CGFloat?
private var originalLeadingOffsets: [CGFloat] = []
public init(contentRect: NSRect, titleBarHeight: CGFloat, titleBarLeadingOffset: CGFloat? = nil) {
self.titleBarLeadingOffset = titleBarLeadingOffset
let styleMask: NSWindow.StyleMask = [.closable, .titled, .miniaturizable, .resizable, .fullSizeContentView]
super.init(contentRect: contentRect, styleMask: styleMask, backing: .buffered, defer: true)
titleVisibility = .hidden
titlebarAppearsTransparent = true
buttons = [NSWindow.ButtonType.closeButton, .miniaturizeButton, .zoomButton].compactMap {
standardWindowButton($0)
}
var accessoryViewHeight = titleBarHeight - calculatedTitleBarHeight
accessoryViewHeight = max(0, accessoryViewHeight)
titleBarAccessoryViewController.view.frame = CGRect(dimension: accessoryViewHeight) // Width not used.
if accessoryViewHeight > 0 {
addTitlebarAccessoryViewController(titleBarAccessoryViewController)
}
self.titleBarHeight = max(titleBarHeight, calculatedTitleBarHeight)
}
public override func layoutIfNeeded() {
super.layoutIfNeeded()
if originalLeadingOffsets.isEmpty {
let firstButtonOffset = buttons.first?.frame.origin.x ?? 0
originalLeadingOffsets = buttons.map { $0.frame.origin.x - firstButtonOffset }
}
if titleBarAccessoryViewController.view.frame.height > 0, !titleBarAccessoryViewController.isHidden {
setupButtons()
}
}
}
extension FullContentWindow {
public var standardWindowButtonsRect: CGRect {
var result = CGRect()
if let firstButton = buttons.first, let lastButton = buttons.last {
let leadingOffset = firstButton.frame.origin.x
let maxX = lastButton.frame.maxX
result = CGRect(x: leadingOffset, y: 0, width: maxX - leadingOffset, height: titleBarHeight)
if let titleBarLeadingOffset = titleBarLeadingOffset {
result = result.offsetBy(dx: titleBarLeadingOffset - leadingOffset, dy: 0)
}
}
return result
}
}
extension FullContentWindow {
private func setupButtons() {
let barHeight = calculatedTitleBarHeight
for (idx, button) in buttons.enumerated() {
let coordY = (barHeight - button.frame.size.height) * 0.5
var coordX = button.frame.origin.x
if let titleBarLeadingOffset = titleBarLeadingOffset {
coordX = titleBarLeadingOffset + originalLeadingOffsets[idx]
}
button.setFrameOrigin(CGPoint(x: coordX, y: coordY))
}
}
private var calculatedTitleBarHeight: CGFloat {
let result = contentRect(forFrameRect: frame).height - contentLayoutRect.height
return result
}
}
文件 FullContentWindowController.swift
open class FullContentWindowController: WindowController {
private let fullContentWindow: FullContentWindow
private let fullContentViewController = ViewController()
public private (set) lazy var titleBarContentContainer = View().autolayoutView()
public private (set) lazy var contentContainer = View().autolayoutView()
private lazy var titleOffsetConstraint =
titleBarContentContainer.leadingAnchor.constraint(equalTo: fullContentViewController.contentView.leadingAnchor)
public init(contentRect: CGRect, titleBarHeight: CGFloat, titleBarLeadingOffset: CGFloat? = nil) {
fullContentWindow = FullContentWindow(contentRect: contentRect, titleBarHeight: titleBarHeight,
titleBarLeadingOffset: titleBarLeadingOffset)
super.init(window: fullContentWindow, viewController: fullContentViewController)
contentWindow.delegate = self
fullContentViewController.contentView.addSubviews(titleBarContentContainer, contentContainer)
let standardWindowButtonsRect = fullContentWindow.standardWindowButtonsRect
LayoutConstraint.withFormat("V:|[*][*]|", titleBarContentContainer, contentContainer).activate()
LayoutConstraint.pin(to: .horizontally, contentContainer).activate()
LayoutConstraint.constrainHeight(constant: standardWindowButtonsRect.height, titleBarContentContainer).activate()
LayoutConstraint.withFormat("[*]|", titleBarContentContainer).activate()
titleOffsetConstraint.activate()
titleOffsetConstraint.constant = standardWindowButtonsRect.maxX
}
open override func prepareForInterfaceBuilder() {
titleBarContentContainer.backgroundColor = .green
contentContainer.backgroundColor = .yellow
fullContentViewController.contentView.backgroundColor = .blue
fullContentWindow.titleBarAccessoryViewController.contentView.backgroundColor = Color.red.withAlphaComponent(0.4)
}
public required init?(coder: NSCoder) {
fatalError()
}
}
extension FullContentWindowController {
public func embedTitleBarContent(_ viewController: NSViewController) {
fullContentViewController.embedChildViewController(viewController, container: titleBarContentContainer)
}
public func embedContent(_ viewController: NSViewController) {
fullContentViewController.embedChildViewController(viewController, container: contentContainer)
}
}
extension FullContentWindowController: NSWindowDelegate {
public func windowWillEnterFullScreen(_ notification: Notification) {
fullContentWindow.titleBarAccessoryViewController.isHidden = true
titleOffsetConstraint.constant = 0
}
public func windowWillExitFullScreen(_ notification: Notification) {
fullContentWindow.titleBarAccessoryViewController.isHidden = false
titleOffsetConstraint.constant = fullContentWindow.standardWindowButtonsRect.maxX
}
}
用法
let windowController = FullContentWindowController(contentRect: CGRect(...),
titleBarHeight: 30,
titleBarLeadingOffset: 7)
windowController.embedContent(viewController) // Content "Yellow area"
windowController.embedTitleBarContent(titleBarController) // Titlebar "Green area"
windowController.showWindow(nil)