ref: uint-formatter on NSView+Ext

baRSS.xcodeproj/project.pbxproj

@@ -22,6 +22,7 @@
 		544F5A752E30EFC700674F81 /* style.css in Resources */ = {isa = PBXBuildFile; fileRef = 544F5A722E30EFC700674F81 /* style.css */; };
 		544F5A762E30EFC700674F81 /* opml-lib.m in Sources */ = {isa = PBXBuildFile; fileRef = 544F5A702E30EFC700674F81 /* opml-lib.m */; };
 		54501010230E9C8600F0B165 /* FeedDownload.m in Sources */ = {isa = PBXBuildFile; fileRef = 5450100F230E9C8600F0B165 /* FeedDownload.m */; };
+		545EB5DA2EE8622200FABBE0 /* StrictUIntFormatter.m in Sources */ = {isa = PBXBuildFile; fileRef = 545EB5D92EE8622200FABBE0 /* StrictUIntFormatter.m */; };
 		5469E13C2EA90C6C00D46CE7 /* NotifyEndpoint.m in Sources */ = {isa = PBXBuildFile; fileRef = 5469E13B2EA90C6C00D46CE7 /* NotifyEndpoint.m */; };
 		546A6A2922C583390034E806 /* SettingsGeneralView.m in Sources */ = {isa = PBXBuildFile; fileRef = 54D857D122802309001BA1C8 /* SettingsGeneralView.m */; };
 		546A6A2C22C584AF0034E806 /* SettingsAppearanceView.m in Sources */ = {isa = PBXBuildFile; fileRef = 546A6A2A22C584AF0034E806 /* SettingsAppearanceView.m */; };
@@ -150,6 +151,8 @@
 		544F5A722E30EFC700674F81 /* style.css */ = {isa = PBXFileReference; lastKnownFileType = text.css; path = style.css; sourceTree = "<group>"; };
 		5450100E230E9C8600F0B165 /* FeedDownload.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = FeedDownload.h; sourceTree = "<group>"; };
 		5450100F230E9C8600F0B165 /* FeedDownload.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = FeedDownload.m; sourceTree = "<group>"; };
+		545EB5D62EE8620300FABBE0 /* StrictUIntFormatter.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = StrictUIntFormatter.h; sourceTree = "<group>"; };
+		545EB5D92EE8622200FABBE0 /* StrictUIntFormatter.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = StrictUIntFormatter.m; sourceTree = "<group>"; };
 		5469E13A2EA90C6C00D46CE7 /* NotifyEndpoint.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = NotifyEndpoint.h; sourceTree = "<group>"; };
 		5469E13B2EA90C6C00D46CE7 /* NotifyEndpoint.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = NotifyEndpoint.m; sourceTree = "<group>"; };
 		546A6A2A22C584AF0034E806 /* SettingsAppearanceView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SettingsAppearanceView.m; sourceTree = "<group>"; };
@@ -515,6 +518,8 @@
 				54910066233A4D4000858AE2 /* URLScheme.m */,
 				54229F532E02491A0019ACB0 /* TinySVG.h */,
 				54229F542E02491A0019ACB0 /* TinySVG.m */,
+				545EB5D62EE8620300FABBE0 /* StrictUIntFormatter.h */,
+				545EB5D92EE8622200FABBE0 /* StrictUIntFormatter.m */,
 			);
 			path = Helper;
 			sourceTree = "<group>";
@@ -732,6 +737,7 @@
 				546FC43D21188AD5007CC3A3 /* SettingsFeeds.m in Sources */,
 				54253C952C49BFE400742695 /* RegexConverterView.m in Sources */,
 				548C6D0A230C33DE003A1AAF /* NSURL+Ext.m in Sources */,
+				545EB5DA2EE8622200FABBE0 /* StrictUIntFormatter.m in Sources */,
 				54E88320211B509D00064188 /* ModalFeedEdit.m in Sources */,
 				54195883218A061100581B79 /* Feed+Ext.m in Sources */,
 				5469E13C2EA90C6C00D46CE7 /* NotifyEndpoint.m in Sources */,

baRSS/Helper/StrictUIntFormatter.h

@@ -0,0 +1,4 @@
+@import Cocoa;
+
+@interface StrictUIntFormatter : NSFormatter
+@end

baRSS/Helper/StrictUIntFormatter.m

@@ -0,0 +1,23 @@
+#import "StrictUIntFormatter.h"
+
+@implementation StrictUIntFormatter
+/// Display object as integer formatted string.
+- (NSString *)stringForObjectValue:(id)obj {
+	return [NSString stringWithFormat:@"%d", [[NSString stringWithFormat:@"%@", obj] intValue]];
+}
+/// Parse any pasted input as integer.
+- (BOOL)getObjectValue:(out id  _Nullable __autoreleasing *)obj forString:(NSString *)string errorDescription:(out NSString *__autoreleasing  _Nullable *)error {
+	*obj = [[NSNumber numberWithInt:[string intValue]] stringValue];
+	return YES;
+}
+/// Only digits, no other character allowed
+- (BOOL)isPartialStringValid:(NSString *__autoreleasing  _Nonnull *)partialStringPtr proposedSelectedRange:(NSRangePointer)proposedSelRangePtr originalString:(NSString *)origString originalSelectedRange:(NSRange)origSelRange errorDescription:(NSString *__autoreleasing  _Nullable *)error {
+	for (NSUInteger i = 0; i < [*partialStringPtr length]; i++) {
+		unichar c = [*partialStringPtr characterAtIndex:i];
+		if (c < '0' || c > '9')
+			return NO;
+	}
+	return YES;
+}
+@end
+

baRSS/NSCategories/NSView+Ext.h

@@ -36,6 +36,7 @@ static inline CGFloat NSMaxWidth(NSView *a, NSView *b) { return Max(NSWidth(a.fr
 // UI: TextFields
 + (NSTextField*)label:(NSString*)text;
 + (NSTextField*)inputField:(NSString*)placeholder width:(CGFloat)w;
++ (NSTextField*)integerField:(NSUInteger)placeholder width:(CGFloat)w;
 + (NSView*)labelColumn:(NSArray<NSString*>*)labels rowHeight:(CGFloat)h padding:(CGFloat)pad;
 // UI: Buttons
 + (NSButton*)button:(NSString*)text;

baRSS/NSCategories/NSView+Ext.m

@@ -1,4 +1,5 @@
 #import "NSView+Ext.h"
+#import "StrictUIntFormatter.h"
 
 @implementation NSView (Ext)
 
@@ -27,6 +28,13 @@
 	return input;
 }
 
+/// Create input text field which only accepts integer values. (calls `inputField`) `21px` height.
++ (NSTextField*)integerField:(NSUInteger)placeholder width:(CGFloat)w {
+	NSTextField *input = [self inputField:[NSString stringWithFormat:@"%ld", placeholder] width:w];
+	input.formatter = [StrictUIntFormatter new];
+	return input;
+}
+
 /// Create view with @c NSTextField subviews with right-aligned and row-centered text from @c labels.
 + (NSView*)labelColumn:(NSArray<NSString*>*)labels rowHeight:(CGFloat)h padding:(CGFloat)pad {
 	CGFloat w = 0, y = 0;

baRSS/Preferences/Feeds Tab/ModalFeedEditView.m

@@ -3,8 +3,6 @@
 #import "NSView+Ext.h"
 #import "Constants.h"
 
-@interface StrictUIntFormatter : NSFormatter
-@end
 
 @implementation ModalFeedEditView
 
@@ -34,7 +32,7 @@
 	self.name = [[[NSView inputField:NSLocalizedString(@"Example Title", nil) width:0] placeIn:self x:x yTop:rowHeight] sizeToRight:PAD_S + 18];
 	self.spinnerName = [[NSView activitySpinner] placeIn:self xRight:1 yTop:rowHeight + 2.5];
 	// 3. row
-	self.refreshNum = [[NSView inputField:@"30" width:85] placeIn:self x:x yTop:2*rowHeight];
+	self.refreshNum = [[NSView integerField:30 width:85] placeIn:self x:x yTop:2*rowHeight];
 	self.refreshUnit = [[NSView popupButton:120] placeIn:self x:NSMaxX(self.refreshNum.frame) + PAD_M yTop:2*rowHeight];
 	self.regexConverterButton = [[[[NSView buttonIcon:RSSImageRegexIcon size:19]
 								   action:@selector(openRegexConverter) target:controller]
@@ -48,7 +46,6 @@
 	self.url.delegate = controller;
 	self.warningButton.hidden = YES;
 	self.regexConverterButton.hidden = YES;
-	self.refreshNum.formatter = [StrictUIntFormatter new]; // see below ...
 	[self prepareWarningPopover];
 	return self;
 }
@@ -67,29 +64,3 @@
 }
 
 @end
-
-
-#pragma mark - StrictUIntFormatter -
-
-
-@implementation StrictUIntFormatter
-/// Display object as integer formatted string.
-- (NSString *)stringForObjectValue:(id)obj {
-	return [NSString stringWithFormat:@"%d", [[NSString stringWithFormat:@"%@", obj] intValue]];
-}
-/// Parse any pasted input as integer.
-- (BOOL)getObjectValue:(out id  _Nullable __autoreleasing *)obj forString:(NSString *)string errorDescription:(out NSString *__autoreleasing  _Nullable *)error {
-	*obj = [[NSNumber numberWithInt:[string intValue]] stringValue];
-	return YES;
-}
-/// Only digits, no other character allowed
-- (BOOL)isPartialStringValid:(NSString *__autoreleasing  _Nonnull *)partialStringPtr proposedSelectedRange:(NSRangePointer)proposedSelRangePtr originalString:(NSString *)origString originalSelectedRange:(NSRange)origSelRange errorDescription:(NSString *__autoreleasing  _Nullable *)error {
-	for (NSUInteger i = 0; i < [*partialStringPtr length]; i++) {
-		unichar c = [*partialStringPtr characterAtIndex:i];
-		if (c < '0' || c > '9')
-			return NO;
-	}
-	return YES;
-}
-@end
-