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Move BatchUpdate.swift to RSCore.

This commit is contained in:
Brent Simmons 2017-11-15 13:25:43 -08:00
parent baaf9c1a02
commit 38954448cb
2 changed files with 71 additions and 0 deletions
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6
Frameworks/RSCore/RSCore.xcodeproj/project.pbxproj
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@ -7,6 +7,8 @@
objects = {
/* Begin PBXBuildFile section */
8402047E1FBCE77900D94C1A /* BatchUpdate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8402047D1FBCE77900D94C1A /* BatchUpdate.swift */; };
8402047F1FBCE77900D94C1A /* BatchUpdate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8402047D1FBCE77900D94C1A /* BatchUpdate.swift */; };
84134D1F1C59D5450063FD24 /* NSCalendar+RSCore.h in Headers */ = {isa = PBXBuildFile; fileRef = 84134D1D1C59D5450063FD24 /* NSCalendar+RSCore.h */; settings = {ATTRIBUTES = (Public, ); }; };
84134D201C59D5450063FD24 /* NSCalendar+RSCore.m in Sources */ = {isa = PBXBuildFile; fileRef = 84134D1E1C59D5450063FD24 /* NSCalendar+RSCore.m */; };
8414CBA71C95F2EA00333C12 /* Set+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8414CBA61C95F2EA00333C12 /* Set+Extensions.swift */; };
@ -165,6 +167,7 @@
/* End PBXContainerItemProxy section */
/* Begin PBXFileReference section */
8402047D1FBCE77900D94C1A /* BatchUpdate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = BatchUpdate.swift; path = RSCore/BatchUpdate.swift; sourceTree = "<group>"; };
84134D1D1C59D5450063FD24 /* NSCalendar+RSCore.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSCalendar+RSCore.h"; sourceTree = "<group>"; };
84134D1E1C59D5450063FD24 /* NSCalendar+RSCore.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "NSCalendar+RSCore.m"; sourceTree = "<group>"; };
8414CBA61C95F2EA00333C12 /* Set+Extensions.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "Set+Extensions.swift"; sourceTree = "<group>"; };
@ -332,6 +335,7 @@
84A835891D4EC7B80004C598 /* PlistProviderProtocol.swift */,
842E45CB1ED623C7000A8B52 /* UniqueIdentifier.swift */,
84E34DA51F9FA1070077082F /* UndoableCommand.swift */,
8402047D1FBCE77900D94C1A /* BatchUpdate.swift */,
84CFF5241AC3C8A200CEA6C8 /* Foundation */,
84CFF5551AC3CF4A00CEA6C8 /* AppKit */,
84CFF5661AC3D13F00CEA6C8 /* Images */,
@ -682,6 +686,7 @@
842DD7C61E14995C00E061EB /* RSBlocks.m in Sources */,
842DD7DD1E14996300E061EB /* NSDate+RSCore.m in Sources */,
84B99C951FAE64D500ECDEDB /* DisplayNameProvider.swift in Sources */,
8402047F1FBCE77900D94C1A /* BatchUpdate.swift in Sources */,
842DD7E91E14996300E061EB /* NSNotificationCenter+RSCore.m in Sources */,
842DD7E71E14996300E061EB /* NSMutableSet+RSCore.m in Sources */,
842DD7E31E14996300E061EB /* NSMutableArray+RSCore.m in Sources */,
@ -711,6 +716,7 @@
84CFF54C1AC3CDAC00CEA6C8 /* NSString+RSCore.m in Sources */,
84CFF5171AC3C73000CEA6C8 /* RSConstants.m in Sources */,
8432B1881DACA2060057D6DF /* NSWindow-Extensions.swift in Sources */,
8402047E1FBCE77900D94C1A /* BatchUpdate.swift in Sources */,
84CFF5541AC3CF4700CEA6C8 /* NSColor+RSCore.m in Sources */,
84536F671BB856D4001E1639 /* NSFileManager+RSCore.m in Sources */,
8415CB8B1BF84D24007B1E98 /* NSEvent+RSCore.m in Sources */,

65
Frameworks/RSCore/RSCore/BatchUpdate.swift Normal file
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@ -0,0 +1,65 @@
//
// BatchUpdates.swift
// DataModel
//
// Created by Brent Simmons on 9/12/16.
// Copyright © 2016 Ranchero Software, LLC. All rights reserved.
//
import Foundation
public typealias BatchUpdateBlock = () -> Void
public extension Notification.Name {
public static let BatchUpdateDidPerform = Notification.Name(rawValue: "BatchUpdateDidPerform")
}
public final class BatchUpdate {
public static let shared = BatchUpdate()
private var count = 0
public var isPerforming: Bool {
get {
return count > 0
}
}
public func perform(_ batchUpdateBlock: BatchUpdateBlock) {
incrementCount()
batchUpdateBlock()
decrementCount()
}
}
private extension BatchUpdate {
func incrementCount() {
count = count + 1
}
func decrementCount() {
count = count - 1
if count < 1 {
if count < 0 {
assertionFailure("Expected batch updates count to be 0 or greater.")
count = 0
}
count = 0
postBatchUpdateDidPerform()
}
}
func postBatchUpdateDidPerform() {
NotificationCenter.default.post(name: .BatchUpdateDidPerform, object: nil, userInfo: nil)
}
}