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baRSS/baRSS/Preferences/Feeds Tab/ModalFeedEditView.m

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//
// The MIT License (MIT)
// Copyright (c) 2019 Oleg Geier
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#import "ModalFeedEditView.h"
#import "ModalFeedEdit.h"
#import "NSView+Ext.h"
@interface StrictUIntFormatter : NSFormatter
@end
@implementation ModalFeedEditView
- (instancetype)initWithController:(ModalFeedEdit*)controller {
NSArray *lbls = @[NSLocalizedString(@"URL", nil),
NSLocalizedString(@"Name", nil),
NSLocalizedString(@"Refresh", nil)];
NSView *labels = [NSView labelColumn:lbls rowHeight:HEIGHT_INPUTFIELD padding:PAD_S];
self = [super initWithFrame:NSMakeRect(0, 0, 0, NSHeight(labels.frame))];
self.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
CGFloat x = NSWidth(labels.frame) + PAD_S;
static const CGFloat rowHeight = PAD_S + HEIGHT_INPUTFIELD;
[labels placeIn:self x:0 yTop:0];
// 1. row
self.url = [[[NSView inputField:@"https://example.org/feed.rss" width:0] placeIn:self x:x yTop:0] sizeToRight:PAD_S + 18];
self.spinnerURL = [[NSView activitySpinner] placeIn:self xRight:1 yTop:2.5];
self.favicon = [[[NSView imageView:nil size:18] tooltip:NSLocalizedString(@"Favicon", nil)] placeIn:self xRight:0 yTop:1.5];
self.warningButton = [[[[NSView buttonIcon:NSImageNameCaution size:18] action:@selector(didClickWarningButton:) target:nil] // up the responder chain
tooltip:NSLocalizedString(@"Click here to show failure reason", nil)]
placeIn:self xRight:0 yTop:1.5];
// 2. row
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.refreshUnit = [[NSView popupButton:120] placeIn:self x:NSMaxX(self.refreshNum.frame) + PAD_M yTop:2*rowHeight];
// initial state
self.url.accessibilityLabel = lbls[0];
self.name.accessibilityLabel = lbls[1];
self.refreshNum.accessibilityLabel = NSLocalizedString(@"Refresh interval", nil);
self.url.delegate = controller;
self.warningButton.hidden = YES;
self.refreshNum.formatter = [StrictUIntFormatter new]; // see below ...
[self prepareWarningPopover];
return self;
}
/// Prepare popover controller to display errors during download
- (void)prepareWarningPopover {
NSPopover *pop = [[NSPopover alloc] init];
pop.behavior = NSPopoverBehaviorTransient;
pop.contentViewController = [[NSViewController alloc] init];
NSView *content = [[NSView alloc] initWithFrame:NSMakeRect(0, 0, 300, 100)];
pop.contentViewController.view = content;
// User visible error description text (after click on warning button)
NSTextField *txt = [[[NSView label:@""] selectable] sizableWidthAndHeight];
txt.frame = NSInsetRect(content.frame, 4, 2);
txt.preferredMaxLayoutWidth = NSWidth(txt.frame);
txt.lineBreakMode = NSLineBreakByWordWrapping;
txt.maximumNumberOfLines = 7;
[content addSubview:txt];
self.warningPopover = pop;
self.warningText = txt;
// Reload button is only visible on 5xx server error (right of )
self.warningReload = [[[[NSView buttonIcon:NSImageNameRefreshTemplate size:16] placeIn:content x:35 yTop:21]
tooltip:NSLocalizedString(@"Retry download (Cmd+R)", nil)]
action:@selector(reloadData) target:nil]; // up the responder chain
}
@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