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Code Issues Packages Projects Releases Wiki Activity

Delete SeekingFavicon, which wasn’t needed as a separate object. Save a little memory this way too.

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This commit is contained in:
Brent Simmons 2017-12-02 21:27:25 -08:00
parent 474396c20b
commit e31b76d627
3 changed files with 46 additions and 98 deletions
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4
Evergreen.xcodeproj/project.pbxproj
View File

@ -20,7 +20,6 @@
84513F901FAA63950023A1A9 /* FeedListControlsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84513F8F1FAA63950023A1A9 /* FeedListControlsView.swift */; };
845213231FCA5B11003B6E93 /* ImageDownloader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845213221FCA5B10003B6E93 /* ImageDownloader.swift */; };
845A29091FC74B8E007B49E3 /* SingleFaviconDownloader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845A29081FC74B8E007B49E3 /* SingleFaviconDownloader.swift */; };
845A291B1FC75AA6007B49E3 /* SeekingFavicon.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845A291A1FC75AA6007B49E3 /* SeekingFavicon.swift */; };
845A29221FC9251E007B49E3 /* SidebarCellLayout.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845A29211FC9251E007B49E3 /* SidebarCellLayout.swift */; };
845A29241FC9255E007B49E3 /* SidebarCellAppearance.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845A29231FC9255E007B49E3 /* SidebarCellAppearance.swift */; };
845EE7B11FC2366500854A1F /* StarredFeedDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 845EE7B01FC2366500854A1F /* StarredFeedDelegate.swift */; };
@ -421,7 +420,6 @@
84513F8F1FAA63950023A1A9 /* FeedListControlsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListControlsView.swift; sourceTree = "<group>"; };
845213221FCA5B10003B6E93 /* ImageDownloader.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ImageDownloader.swift; sourceTree = "<group>"; };
845A29081FC74B8E007B49E3 /* SingleFaviconDownloader.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SingleFaviconDownloader.swift; sourceTree = "<group>"; };
845A291A1FC75AA6007B49E3 /* SeekingFavicon.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SeekingFavicon.swift; sourceTree = "<group>"; };
845A29211FC9251E007B49E3 /* SidebarCellLayout.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SidebarCellLayout.swift; sourceTree = "<group>"; };
845A29231FC9255E007B49E3 /* SidebarCellAppearance.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SidebarCellAppearance.swift; sourceTree = "<group>"; };
845B14A51FC2299E0013CF92 /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
@ -637,7 +635,6 @@
children = (
848F6AE41FC29CFA002D422E /* FaviconDownloader.swift */,
845A29081FC74B8E007B49E3 /* SingleFaviconDownloader.swift */,
845A291A1FC75AA6007B49E3 /* SeekingFavicon.swift */,
84FF69B01FC3793300DC198E /* FaviconURLFinder.swift */,
);
name = Favicons;
@ -1370,7 +1367,6 @@
84F2D5371FC22FCC00998D64 /* PseudoFeed.swift in Sources */,
845EE7C11FC2488C00854A1F /* SmartFeed.swift in Sources */,
84702AA41FA27AC0006B8943 /* MarkReadOrUnreadCommand.swift in Sources */,
845A291B1FC75AA6007B49E3 /* SeekingFavicon.swift in Sources */,
849A979F1ED9F130007D329B /* SidebarCell.swift in Sources */,
849A97651ED9EB96007D329B /* SidebarTreeControllerDelegate.swift in Sources */,
849A97671ED9EB96007D329B /* UnreadCountView.swift in Sources */,

82
Evergreen/Favicons/FaviconDownloader.swift
View File

@ -17,10 +17,11 @@ extension Notification.Name {
final class FaviconDownloader {
private var seekingFaviconCache = [String: SeekingFavicon]() // homePageURL: SeekingFavicon
private var singleFaviconDownloaderCache = [String: SingleFaviconDownloader]() // faviconURL: SingleFaviconDownloader
private let folder: String
private let diskCache: BinaryDiskCache
private var singleFaviconDownloaderCache = [String: SingleFaviconDownloader]() // faviconURL: SingleFaviconDownloader
private var homePageToFaviconURLCache = [String: String]() //homePageURL: faviconURL
private var homePageURLsWithNoFaviconURL = Set<String>()
private let queue: DispatchQueue
struct UserInfoKey {
@ -33,7 +34,6 @@ final class FaviconDownloader {
self.diskCache = BinaryDiskCache(folder: folder)
self.queue = DispatchQueue(label: "FaviconDownloader serial queue - \(folder)")
NotificationCenter.default.addObserver(self, selector: #selector(seekingFaviconDidSeek(_:)), name: .SeekingFaviconSeekDidComplete, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(didLoadFavicon(_:)), name: .DidLoadFavicon, object: nil)
}
@ -61,22 +61,30 @@ final class FaviconDownloader {
func favicon(withHomePageURL homePageURL: String) -> NSImage? {
guard let seekingFavicon = seekingFavicon(with: normalizedHomePageURL(homePageURL)) else {
let url = normalizedHomePageURL(homePageURL)
if homePageURLsWithNoFaviconURL.contains(url) {
return nil
}
return favicon(withSeekingFavicon: seekingFavicon)
if let faviconURL = homePageToFaviconURLCache[url] {
return favicon(with: faviconURL)
}
FaviconURLFinder.findFaviconURL(url) { (faviconURL) in
if let faviconURL = faviconURL {
self.homePageToFaviconURLCache[url] = faviconURL
let _ = self.favicon(with: faviconURL)
}
else {
self.homePageURLsWithNoFaviconURL.insert(url)
}
}
return nil
}
// MARK: - Notifications
@objc func seekingFaviconDidSeek(_ note: Notification) {
guard let seekingFavicon = note.object as? SeekingFavicon else {
return
}
favicon(withSeekingFavicon: seekingFavicon)
}
@objc func didLoadFavicon(_ note: Notification) {
guard let singleFaviconDownloader = note.object as? SingleFaviconDownloader else {
@ -92,7 +100,31 @@ final class FaviconDownloader {
private extension FaviconDownloader {
private static let localeForLowercasing = Locale(identifier: "en_US")
static let localeForLowercasing = Locale(identifier: "en_US")
func findFaviconURL(with homePageURL: String, _ completion: @escaping (String?) -> Void) {
guard let url = URL(string: homePageURL) else {
completion(nil)
return
}
FaviconURLFinder.findFaviconURL(homePageURL) { (faviconURL) in
if let faviconURL = faviconURL {
completion(faviconURL)
return
}
guard let scheme = url.scheme, let host = url.host else {
completion(nil)
return
}
let defaultFaviconURL = "\(scheme)://\(host)/favicon.ico".lowercased(with: FaviconDownloader.localeForLowercasing)
completion(defaultFaviconURL)
}
}
func normalizedHomePageURL(_ url: String) -> String {
@ -112,15 +144,6 @@ private extension FaviconDownloader {
return url + "/"
}
@discardableResult
func favicon(withSeekingFavicon seekingFavicon: SeekingFavicon) -> NSImage? {
guard let faviconURL = seekingFavicon.faviconURL else {
return nil
}
return favicon(with: faviconURL)
}
func faviconDownloader(withURL faviconURL: String) -> SingleFaviconDownloader {
if let downloader = singleFaviconDownloaderCache[faviconURL] {
@ -133,19 +156,6 @@ private extension FaviconDownloader {
return downloader
}
func seekingFavicon(with homePageURL: String) -> SeekingFavicon? {
if let seekingFavicon = seekingFaviconCache[homePageURL] {
return seekingFavicon
}
guard let seekingFavicon = SeekingFavicon(homePageURL: homePageURL) else {
return nil
}
seekingFaviconCache[homePageURL] = seekingFavicon
return seekingFavicon
}
func postFaviconDidBecomeAvailableNotification(_ faviconURL: String) {
let userInfo: [AnyHashable: Any] = [UserInfoKey.faviconURL: faviconURL]

58
Evergreen/Favicons/SeekingFavicon.swift
View File

@ -1,58 +0,0 @@
//
// SeekingFavicon.swift
// Evergreen
//
// Created by Brent Simmons on 11/23/17.
// Copyright © 2017 Ranchero Software. All rights reserved.
//
import Foundation
extension Notification.Name {
static let SeekingFaviconSeekDidComplete = Notification.Name("SeekingFaviconSeekDidCompleteNotification")
}
final class SeekingFavicon {
// At first, when looking for a favicon, we only know the homePageURL.
// The faviconURL may be specified by metadata in the home page,
// or it might be at /favicon.ico,
// or it might not exist (or be unfindable, which is the same thing).
var didSeek = false
var faviconURL: String? {
return didSeek ? (foundFaviconURL ?? defaultFaviconURL) : nil
}
private let homePageURL: String
private var foundFaviconURL: String?
private let defaultFaviconURL: String // /favicon.ico
private static let localeForLowercasing = Locale(identifier: "en_US")
init?(homePageURL: String) {
guard let url = URL(string: homePageURL), let scheme = url.scheme, let host = url.host else {
return nil
}
self.homePageURL = homePageURL
self.defaultFaviconURL = "\(scheme)://\(host)/favicon.ico".lowercased(with: SeekingFavicon.localeForLowercasing)
findFaviconURL()
}
}
private extension SeekingFavicon {
func findFaviconURL() {
FaviconURLFinder.findFaviconURL(homePageURL) { (faviconURL) in
self.foundFaviconURL = faviconURL
self.didSeek = true
NotificationCenter.default.post(name: .SeekingFaviconSeekDidComplete, object: self)
}
}
}