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Prevent nodes from collapsing when refreshing

This commit is contained in:
Shadowfacts 2020-04-01 21:42:32 -04:00
parent 3e46c06ba8
commit 3a8088033a
Signed by: shadowfacts
GPG Key ID: 94A5AB95422746E5
2 changed files with 19 additions and 3 deletions
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4
MongoView.xcodeproj/project.pbxproj
View File

@ -224,7 +224,7 @@
isa = PBXProject;
attributes = {
LastSwiftUpdateCheck = 1130;
LastUpgradeCheck = 1130;
LastUpgradeCheck = 1140;
ORGANIZATIONNAME = Shadowfacts;
TargetAttributes = {
D63CDEB923C837DC0012D658 = {
@ -418,6 +418,7 @@
buildSettings = {
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
CODE_SIGN_ENTITLEMENTS = MongoView/MongoView.entitlements;
CODE_SIGN_IDENTITY = "Apple Development";
CODE_SIGN_STYLE = Automatic;
COMBINE_HIDPI_IMAGES = YES;
CURRENT_PROJECT_VERSION = 3;
@ -439,6 +440,7 @@
buildSettings = {
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
CODE_SIGN_ENTITLEMENTS = MongoView/MongoView.entitlements;
CODE_SIGN_IDENTITY = "Apple Development";
CODE_SIGN_STYLE = Automatic;
COMBINE_HIDPI_IMAGES = YES;
CURRENT_PROJECT_VERSION = 3;

18
MongoView/Node.swift
View File

@ -9,7 +9,9 @@
import Foundation
import MongoSwift
class Node {
// Node needs to be an NSObject, since NSOutlineView uses NSObject.isEqual(_:) and NSObject.hash to determine item equality
// which is necessary to prevent items from collapsing when refreshing the view
class Node: NSObject {
let key: Key?
let value: BSON
weak var parent: Node?
@ -57,10 +59,22 @@ class Node {
self.init(key: nil, value: .document(document))
}
}
override func isEqual(_ object: Any?) -> Bool {
guard let object = object as? Node else { return false }
return self.parent == object.parent && self.key == object.key
}
override var hash: Int {
var hasher = Hasher()
hasher.combine(parent)
hasher.combine(key)
return hasher.finalize()
}
}
extension Node {
enum Key {
enum Key: Equatable, Hashable {
case index(Int)
case name(String)
case objectId(ObjectId)