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NetNewsWire/Mac/MainWindow/NNW3/NNW3Document.swift

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Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
//
// NNW3Document.swift
// NetNewsWire
//
// Created by Maurice Parker on 10/14/19.
// Copyright © 2019 Ranchero Software. All rights reserved.
//
import Foundation
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
import RSCore
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
struct NNW3Document {
private let children: [OPMLRepresentable]?
private init(plist: [[String: AnyObject]]) {
self.children = NNW3Folder.itemsWithPlist(plist: plist)
}
init?(subscriptionsPlistURL url: URL) {
guard let data = try? Data(contentsOf: url) else {
return nil
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
}
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
guard let plist = try? PropertyListSerialization.propertyList(from: data, options: [], format: nil) as? [[String: AnyObject]] else {
return nil
}
self.init(plist: plist)
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
}
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
}
// MARK: OPMLRepresentable
extension NNW3Document: OPMLRepresentable {
func OPMLString(indentLevel: Int, strictConformance: Bool) -> String {
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
var s =
"""
<?xml version="1.0" encoding="UTF-8"?>
<opml version="1.1">
<head>
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
<title>NetNewsWire 3 Subscriptions</title>
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
</head>
<body>
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
"""
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
if let children = children {
for child in children {
s += child.OPMLString(indentLevel: indentLevel + 1, strictConformance: true)
}
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
}
s +=
"""
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
</body>
</opml>
"""
Add the ability to import NNW 3 Subscription plist files. Issue #1129
2019-10-15 03:45:58 +02:00
return s
}
}
Make importing NetNewsWire 3 subscriptions a one-step process — use an accessory view in the NSOpenPanel. Also: refactor to use immutable structs instead of classes; use static methods on structs; reduce API surface; don’t flatten sub-folders (let the OPML importer handle the flattening, which it already does).
2019-10-17 22:25:11 +02:00
// MARK: - NNW3Folder
private struct NNW3Folder {
private let title: String?
private let children: [OPMLRepresentable]?
init(plist: [String: Any]) {
self.title = plist["name"] as? String
guard let childrenArray = plist["childrenArray"] as? [[String: Any]] else {
self.children = nil
return
}
self.children = NNW3Folder.itemsWithPlist(plist: childrenArray)
}
static func itemsWithPlist(plist: [[String: Any]]) -> [OPMLRepresentable]? {
// Also used by NNW3Document.
var items = [OPMLRepresentable]()
for child in plist {
if child["isContainer"] as? Bool ?? false {
items.append(NNW3Folder(plist: child))
} else {
items.append(NNW3Feed(plist: child))
}
}
return items.isEmpty ? nil : items
}
}
// MARK: OPMLRepresentable
extension NNW3Folder: OPMLRepresentable {
func OPMLString(indentLevel: Int, strictConformance: Bool) -> String {
let t = title?.rs_stringByEscapingSpecialXMLCharacters() ?? ""
guard let children = children else {
// Empty folder.
return "<outline text=\"\(t)\" title=\"\(t)\" />\n".rs_string(byPrependingNumberOfTabs: indentLevel)
}
var s = "<outline text=\"\(t)\" title=\"\(t)\">\n".rs_string(byPrependingNumberOfTabs: indentLevel)
for child in children {
s += child.OPMLString(indentLevel: indentLevel + 1, strictConformance: true)
}
s += "</outline>\n".rs_string(byPrependingNumberOfTabs: indentLevel)
return s
}
}
// MARK: - NNW3Feed
private struct NNW3Feed {
private let title: String?
private let homePageURL: String?
private let feedURL: String?
init(plist: [String: Any]) {
self.title = plist["name"] as? String
self.homePageURL = plist["home"] as? String
self.feedURL = plist["rss"] as? String
}
}
// MARK: OPMLRepresentable
extension NNW3Feed: OPMLRepresentable {
func OPMLString(indentLevel: Int, strictConformance: Bool) -> String {
let t = title?.rs_stringByEscapingSpecialXMLCharacters() ?? ""
let p = homePageURL?.rs_stringByEscapingSpecialXMLCharacters() ?? ""
let f = feedURL?.rs_stringByEscapingSpecialXMLCharacters() ?? ""
var s = "<outline text=\"\(t)\" title=\"\(t)\" description=\"\" type=\"rss\" version=\"RSS\" htmlUrl=\"\(p)\" xmlUrl=\"\(f)\"/>\n"
s = s.rs_string(byPrependingNumberOfTabs: indentLevel)
return s
}
}