NetNewsWire/Mac/Inspector/InspectorWindowController.swift
2019-04-13 16:18:54 -07:00

134 lines
3.4 KiB
Swift

//
// InspectorWindowController.swift
// NetNewsWire
//
// Created by Brent Simmons on 1/20/18.
// Copyright © 2018 Ranchero Software. All rights reserved.
//
import AppKit
protocol Inspector: class {
var objects: [Any]? { get set }
var isFallbackInspector: Bool { get } // Can handle nothing-to-inspect or unexpected type of objects.
func canInspect(_ objects: [Any]) -> Bool
}
typealias InspectorViewController = Inspector & NSViewController
final class InspectorWindowController: NSWindowController {
class var shouldOpenAtStartup: Bool {
return UserDefaults.standard.bool(forKey: DefaultsKey.windowIsOpen)
}
var objects: [Any]? {
didSet {
let _ = window
currentInspector = inspector(for: objects)
}
}
private var inspectors: [InspectorViewController]!
private var currentInspector: InspectorViewController! {
didSet {
currentInspector.objects = objects
for inspector in inspectors {
if inspector !== currentInspector {
inspector.objects = nil
}
}
show(currentInspector)
}
}
private struct DefaultsKey {
static let windowIsOpen = "FloatingInspectorIsOpen"
static let windowOrigin = "FloatingInspectorOrigin"
}
override func windowDidLoad() {
let nothingInspector = window?.contentViewController as! InspectorViewController
let storyboard = NSStoryboard(name: NSStoryboard.Name("Inspector"), bundle: nil)
let feedInspector = inspector("Feed", storyboard)
let folderInspector = inspector("Folder", storyboard)
let builtinSmartFeedInspector = inspector("BuiltinSmartFeed", storyboard)
inspectors = [feedInspector, folderInspector, builtinSmartFeedInspector, nothingInspector]
currentInspector = nothingInspector
if let savedOrigin = originFromDefaults() {
window?.setFlippedOriginAdjustingForScreen(savedOrigin)
}
else {
window?.flippedOrigin = NSPoint(x: 256, y: 256)
}
}
func inspector(for objects: [Any]?) -> InspectorViewController {
var fallbackInspector: InspectorViewController? = nil
for inspector in inspectors {
if inspector.isFallbackInspector {
fallbackInspector = inspector
}
else if let objects = objects, inspector.canInspect(objects) {
return inspector
}
}
return fallbackInspector!
}
func saveState() {
UserDefaults.standard.set(isOpen, forKey: DefaultsKey.windowIsOpen)
if isOpen, let window = window, let flippedOrigin = window.flippedOrigin {
UserDefaults.standard.set(NSStringFromPoint(flippedOrigin), forKey: DefaultsKey.windowOrigin)
}
}
}
private extension InspectorWindowController {
func inspector(_ identifier: String, _ storyboard: NSStoryboard) -> InspectorViewController {
return storyboard.instantiateController(withIdentifier: NSStoryboard.SceneIdentifier(identifier)) as! InspectorViewController
}
func show(_ inspector: InspectorViewController) {
guard let window = window else {
return
}
let flippedOrigin = window.flippedOrigin
if window.contentViewController != inspector {
window.contentViewController = inspector
window.makeFirstResponder(nil)
}
window.layoutIfNeeded()
if let flippedOrigin = flippedOrigin {
window.setFlippedOriginAdjustingForScreen(flippedOrigin)
}
}
func originFromDefaults() -> NSPoint? {
guard let originString = UserDefaults.standard.string(forKey: DefaultsKey.windowOrigin) else {
return nil
}
let point = NSPointFromString(originString)
return point == NSPoint.zero ? nil : point
}
}