Files
YTLitePlus/Tweaks/FLEX/GlobalStateExplorers/SystemLog/FLEXSystemLogCell.m
2023-06-27 09:54:41 +02:00

120 lines
4.3 KiB
Objective-C

//
// FLEXSystemLogCell.m
// FLEX
//
// Created by Ryan Olson on 1/25/15.
// Copyright (c) 2020 FLEX Team. All rights reserved.
//
#import "FLEXSystemLogCell.h"
#import "FLEXSystemLogMessage.h"
#import "UIFont+FLEX.h"
NSString *const kFLEXSystemLogCellIdentifier = @"FLEXSystemLogCellIdentifier";
@interface FLEXSystemLogCell ()
@property (nonatomic) UILabel *logMessageLabel;
@property (nonatomic) NSAttributedString *logMessageAttributedText;
@end
@implementation FLEXSystemLogCell
- (void)postInit {
[super postInit];
self.logMessageLabel = [UILabel new];
self.logMessageLabel.numberOfLines = 0;
self.separatorInset = UIEdgeInsetsZero;
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self.contentView addSubview:self.logMessageLabel];
}
- (void)setLogMessage:(FLEXSystemLogMessage *)logMessage {
if (![_logMessage isEqual:logMessage]) {
_logMessage = logMessage;
self.logMessageAttributedText = nil;
[self setNeedsLayout];
}
}
- (void)setHighlightedText:(NSString *)highlightedText {
if (![_highlightedText isEqual:highlightedText]) {
_highlightedText = highlightedText;
self.logMessageAttributedText = nil;
[self setNeedsLayout];
}
}
- (NSAttributedString *)logMessageAttributedText {
if (!_logMessageAttributedText) {
_logMessageAttributedText = [[self class] attributedTextForLogMessage:self.logMessage highlightedText:self.highlightedText];
}
return _logMessageAttributedText;
}
static const UIEdgeInsets kFLEXLogMessageCellInsets = {10.0, 10.0, 10.0, 10.0};
- (void)layoutSubviews {
[super layoutSubviews];
self.logMessageLabel.attributedText = self.logMessageAttributedText;
self.logMessageLabel.frame = UIEdgeInsetsInsetRect(self.contentView.bounds, kFLEXLogMessageCellInsets);
}
#pragma mark - Stateless helpers
+ (NSAttributedString *)attributedTextForLogMessage:(FLEXSystemLogMessage *)logMessage highlightedText:(NSString *)highlightedText {
NSString *text = [self displayedTextForLogMessage:logMessage];
NSDictionary<NSString *, id> *attributes = @{ NSFontAttributeName : UIFont.flex_codeFont };
NSAttributedString *attributedText = [[NSAttributedString alloc] initWithString:text attributes:attributes];
if (highlightedText.length > 0) {
NSMutableAttributedString *mutableAttributedText = attributedText.mutableCopy;
NSMutableDictionary<NSString *, id> *highlightAttributes = attributes.mutableCopy;
highlightAttributes[NSBackgroundColorAttributeName] = UIColor.yellowColor;
NSRange remainingSearchRange = NSMakeRange(0, text.length);
while (remainingSearchRange.location < text.length) {
remainingSearchRange.length = text.length - remainingSearchRange.location;
NSRange foundRange = [text rangeOfString:highlightedText options:NSCaseInsensitiveSearch range:remainingSearchRange];
if (foundRange.location != NSNotFound) {
remainingSearchRange.location = foundRange.location + foundRange.length;
[mutableAttributedText setAttributes:highlightAttributes range:foundRange];
} else {
break;
}
}
attributedText = mutableAttributedText;
}
return attributedText;
}
+ (NSString *)displayedTextForLogMessage:(FLEXSystemLogMessage *)logMessage {
return [NSString stringWithFormat:@"%@: %@", [self logTimeStringFromDate:logMessage.date], logMessage.messageText];
}
+ (CGFloat)preferredHeightForLogMessage:(FLEXSystemLogMessage *)logMessage inWidth:(CGFloat)width {
UIEdgeInsets insets = kFLEXLogMessageCellInsets;
CGFloat availableWidth = width - insets.left - insets.right;
NSAttributedString *attributedLogText = [self attributedTextForLogMessage:logMessage highlightedText:nil];
CGSize labelSize = [attributedLogText boundingRectWithSize:CGSizeMake(availableWidth, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading context:nil].size;
return labelSize.height + insets.top + insets.bottom;
}
+ (NSString *)logTimeStringFromDate:(NSDate *)date {
static NSDateFormatter *formatter = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
formatter = [NSDateFormatter new];
formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss.SSS";
});
return [formatter stringFromDate:date];
}
@end