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Rename BlockOperation to EarthquakeBlockOperation

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This commit is contained in:
Sami Samhuri 2022-02-17 21:02:01 -08:00
parent 8b89ba572e
commit d60e09b136
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GPG key ID: 4B4195422742FC16
4 changed files with 16 additions and 14 deletions
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9
Advanced NSOperations.xcodeproj/project.pbxproj
View file

@ -20,7 +20,7 @@
55817C3A1B18FDF8001C0CE2 /* OperationQueue.swift in Sources */ = {isa = PBXBuildFile; fileRef = 551B9C061AEB2D7800302388 /* OperationQueue.swift */; };
55817C3B1B18FDF8001C0CE2 /* ExclusivityController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 55CD4D201AF5C05300E3A9E3 /* ExclusivityController.swift */; };
55817C3C1B18FDF8001C0CE2 /* Operation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 551B9C021AEB1CA900302388 /* Operation.swift */; };
55817C3D1B18FDF8001C0CE2 /* BlockOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 55857B3A1AF20DE800219D5A /* BlockOperation.swift */; };
55817C3D1B18FDF8001C0CE2 /* EarthquakeBlockOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 55857B3A1AF20DE800219D5A /* EarthquakeBlockOperation.swift */; };
55817C3E1B18FDF8001C0CE2 /* GroupOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 55727FB11AF2798C00EC6916 /* GroupOperation.swift */; };
55817C3F1B18FDF8001C0CE2 /* URLSessionTaskOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 55727FB91AF2849E00EC6916 /* URLSessionTaskOperation.swift */; };
55817C401B18FDF8001C0CE2 /* LocationOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 553F50031B07FB5E005F991E /* LocationOperation.swift */; };
@ -110,7 +110,7 @@
55857B331AF2055600219D5A /* SilentCondition.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SilentCondition.swift; sourceTree = "<group>"; };
55857B351AF2077700219D5A /* CKContainer+Operations.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "CKContainer+Operations.swift"; sourceTree = "<group>"; };
55857B381AF20CC700219D5A /* MutuallyExclusive.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MutuallyExclusive.swift; sourceTree = "<group>"; };
55857B3A1AF20DE800219D5A /* BlockOperation.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BlockOperation.swift; sourceTree = "<group>"; };
55857B3A1AF20DE800219D5A /* EarthquakeBlockOperation.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = EarthquakeBlockOperation.swift; sourceTree = "<group>"; };
55857B3E1AF2116600219D5A /* NoCancelledDependencies.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NoCancelledDependencies.swift; sourceTree = "<group>"; };
55AD643C1B128CC3000EF5CB /* TimeoutObserver.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TimeoutObserver.swift; sourceTree = "<group>"; };
55CD4D201AF5C05300E3A9E3 /* ExclusivityController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ExclusivityController.swift; sourceTree = "<group>"; };
@ -276,7 +276,7 @@
isa = PBXGroup;
children = (
551B9C021AEB1CA900302388 /* Operation.swift */,
55857B3A1AF20DE800219D5A /* BlockOperation.swift */,
55857B3A1AF20DE800219D5A /* EarthquakeBlockOperation.swift */,
55727FB11AF2798C00EC6916 /* GroupOperation.swift */,
55727FB91AF2849E00EC6916 /* URLSessionTaskOperation.swift */,
553F50031B07FB5E005F991E /* LocationOperation.swift */,
@ -355,6 +355,7 @@
developmentRegion = English;
hasScannedForEncodings = 0;
knownRegions = (
English,
en,
Base,
);
@ -427,7 +428,7 @@
55E702681AFE61700032742F /* Earthquake.swift in Sources */,
55817C4F1B18FDF8001C0CE2 /* CalendarCondition.swift in Sources */,
55817C481B18FDF8001C0CE2 /* NegatedCondition.swift in Sources */,
55817C3D1B18FDF8001C0CE2 /* BlockOperation.swift in Sources */,
55817C3D1B18FDF8001C0CE2 /* EarthquakeBlockOperation.swift in Sources */,
55817C471B18FDF8001C0CE2 /* SilentCondition.swift in Sources */,
55E7021D1AFC38920032742F /* EarthquakeTableViewController.swift in Sources */,
55817C451B18FDF8001C0CE2 /* OperationErrors.swift in Sources */,

2
Earthquakes/EarthquakeTableViewController.swift
View file

@ -92,7 +92,7 @@ class EarthquakeTableViewController: UITableViewController {
an `Operation`, we can make it mutually exclusive with other operations
that modify the view controller hierarchy.
*/
let shareOperation = BlockOperation { (continuation: Void -> Void) in
let shareOperation = EarthquakeBlockOperation { (continuation: Void -> Void) in
dispatch_async(dispatch_get_main_queue()) {
let shareSheet = UIActivityViewController(activityItems: items, applicationActivities: nil)

17
Earthquakes/EarthquakesTableViewController.swift
View file

@ -64,24 +64,25 @@ class EarthquakesTableViewController: UITableViewController {
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
/*
Instead of performing the segue directly, we can wrap it in a `BlockOperation`.
This allows us to attach conditions to the operation. For example, you
could make it so that you could only perform the segue if the network
is reachable and you have access to the user's Photos library.
Instead of performing the segue directly, we can wrap it in a
`EarthquakeBlockOperation`. This allows us to attach conditions to the
operation. For example, you could make it so that you could only perform
the segue if the network is reachable and you have access to the user's
Photos library.
If you decide to use this pattern in your apps, choose conditions that
are sensible and do not place onerous requirements on the user.
It's also worth noting that the Observer attached to the `BlockOperation`
will cause the tableview row to be deselected automatically if the
`Operation` fails.
It's also worth noting that the Observer attached to the
`EarthquakeBlockOperation` will cause the tableview row to be deselected
automatically if the `EarthquakeOperation` fails.
You may choose to add your own observer to introspect the errors reported
as the operation finishes. Doing so would allow you to present a message
to the user about why you were unable to perform the requested action.
*/
let operation = BlockOperation {
let operation = EarthquakeBlockOperation {
self.performSegueWithIdentifier("showEarthquake", sender: nil)
}

2
Earthquakes/Operations/BlockOperation.swift → Earthquakes/Operations/EarthquakeBlockOperation.swift
View file

@ -12,7 +12,7 @@ import Foundation
typealias OperationBlock = (Void -> Void) -> Void
/// A sublcass of `Operation` to execute a closure.
class BlockOperation: Operation {
class EarthquakeBlockOperation: Operation {
private let block: OperationBlock?
/**