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