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Tweaks/FLEX/ObjectExplorers/Sections/FLEXDefaultsContentSection.m

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+//
+//  FLEXDefaultsContentSection.m
+//  FLEX
+//
+//  Created by Tanner Bennett on 8/28/19.
+//  Copyright © 2020 FLEX Team. All rights reserved.
+//
+
+#import "FLEXDefaultsContentSection.h"
+#import "FLEXDefaultEditorViewController.h"
+#import "FLEXUtility.h"
+
+@interface FLEXDefaultsContentSection ()
+@property (nonatomic) NSUserDefaults *defaults;
+@property (nonatomic) NSArray *keys;
+@property (nonatomic, readonly) NSDictionary *unexcludedDefaults;
+@end
+
+@implementation FLEXDefaultsContentSection
+@synthesize keys = _keys;
+
+#pragma mark Initialization
+
++ (instancetype)forObject:(id)object {
+    return [self forDefaults:object];
+}
+
++ (instancetype)standard {
+    return [self forDefaults:NSUserDefaults.standardUserDefaults];
+}
+
++ (instancetype)forDefaults:(NSUserDefaults *)userDefaults {
+    FLEXDefaultsContentSection *section = [self forReusableFuture:^id(FLEXDefaultsContentSection *section) {
+        section.defaults = userDefaults;
+        section.onlyShowKeysForAppPrefs = YES;
+        return section.unexcludedDefaults;
+    }];
+    return section;
+}
+
+#pragma mark - Overrides
+
+- (NSString *)title {
+    return @"Defaults";
+}
+
+- (void (^)(__kindof UIViewController *))didPressInfoButtonAction:(NSInteger)row {
+    return ^(UIViewController *host) {
+        if ([FLEXDefaultEditorViewController canEditDefaultWithValue:[self objectForRow:row]]) {
+            // We use titleForRow: to get the key because self.keys is not
+            // necessarily in the same order as the keys being displayed
+            FLEXVariableEditorViewController *controller = [FLEXDefaultEditorViewController
+                target:self.defaults key:[self titleForRow:row] commitHandler:^{
+                    [self reloadData:YES];
+                }
+            ];
+            [host.navigationController pushViewController:controller animated:YES];
+        } else {
+            [FLEXAlert showAlert:@"Oh No…" message:@"We can't edit this entry :(" from:host];
+        }
+    };
+}
+
+- (UITableViewCellAccessoryType)accessoryTypeForRow:(NSInteger)row {
+    return UITableViewCellAccessoryDetailDisclosureButton;
+}
+
+#pragma mark - Private
+
+- (NSArray *)keys {
+    if (!_keys) {
+        if (self.onlyShowKeysForAppPrefs) {
+            // Read keys from preferences file
+            NSString *bundle = NSBundle.mainBundle.bundleIdentifier;
+            NSString *prefsPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Library/Preferences"];
+            NSString *filePath = [NSString stringWithFormat:@"%@/%@.plist", prefsPath, bundle];
+            self.keys = [NSDictionary dictionaryWithContentsOfFile:filePath].allKeys;
+        } else {
+            self.keys = self.defaults.dictionaryRepresentation.allKeys;
+        }
+    }
+
+    return _keys;
+}
+
+- (void)setKeys:(NSArray *)keys {
+    _keys = [keys sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)];
+}
+
+- (NSDictionary *)unexcludedDefaults {
+    // Case: no excluding
+    if (!self.onlyShowKeysForAppPrefs) {
+        return self.defaults.dictionaryRepresentation;
+    }
+
+    // Always regenerate key allowlist when this method is called
+    _keys = nil;
+
+    // Generate new dictionary from unexcluded keys
+    NSArray *values = [self.defaults.dictionaryRepresentation
+        objectsForKeys:self.keys notFoundMarker:NSNull.null
+    ];
+    return [NSDictionary dictionaryWithObjects:values forKeys:self.keys];
+}
+
+#pragma mark - Public
+
+- (void)setOnlyShowKeysForAppPrefs:(BOOL)onlyShowKeysForAppPrefs {
+    if (onlyShowKeysForAppPrefs) {
+        // This property only applies if we're using standardUserDefaults
+        if (self.defaults != NSUserDefaults.standardUserDefaults) return;
+    }
+
+    _onlyShowKeysForAppPrefs = onlyShowKeysForAppPrefs;
+}
+
+@end