Build ChatListUI

submodules/LegacyComponents/Sources/TGModernBackToolbarButton.m

@@ -0,0 +1,101 @@
+#import "TGModernBackToolbarButton.h"
+
+#import "LegacyComponentsInternal.h"
+#import "TGColor.h"
+
+@interface TGModernBackToolbarButton ()
+{
+    float _labelOffset;
+    float _arrowOffset;
+}
+
+@property (nonatomic, strong) UIImageView *arrowView;
+
+@end
+
+@implementation TGModernBackToolbarButton
+
+- (id)initWithFrame:(CGRect)frame
+{
+    self = [super initWithFrame:frame];
+    if (self)
+    {
+        if (iosMajorVersion() >= 7)
+        {
+            _arrowOffset = 0.0f;
+            _labelOffset = 1.0f;
+        }
+        else
+        {
+            _arrowOffset = -1.0f;
+            _labelOffset = 0.0f;
+        }
+        
+        [self setButtonTitle:TGLocalized(@"Common.Back")];
+        
+        _arrowView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"NavigationBackArrow.png"]];
+        [self addSubview:_arrowView];
+    }
+    return self;
+}
+
+- (instancetype)initWithLightMode
+{
+    self = [self initWithFrame:CGRectZero];
+    if (self != nil)
+    {
+        [self setTitleColor:TGAccentColor()];
+        _arrowView.image = [UIImage imageNamed:@"NavigationBackArrowLight.png"];
+        
+        _arrowOffset = -1.0f;
+        _labelOffset = 0.0f;
+    }
+    return self;
+}
+
+- (UIEdgeInsets)alignmentRectInsets
+{
+    UIEdgeInsets insets = UIEdgeInsetsZero;
+    insets = UIEdgeInsetsMake(0, 8.0f, 0, 0);
+    return insets;
+}
+
+- (void)sizeToFit
+{
+    [self.buttonTitleLabel sizeToFit];
+    
+    CGRect frame = self.frame;
+    frame.size.height = _arrowView.frame.size.height;
+    frame.size.width = _arrowView.frame.size.width + 7 + self.buttonTitleLabel.frame.size.width;
+    self.frame = frame;
+}
+
+- (void)layoutSubviews
+{
+    [super layoutSubviews];
+    
+    CGRect arrowFrame = _arrowView.frame;
+    arrowFrame.origin = CGPointMake(0, _arrowOffset + CGFloor((self.frame.size.height - arrowFrame.size.height) / 2) + 1);
+    _arrowView.frame = arrowFrame;
+    
+    CGRect labelFrame = self.buttonTitleLabel.frame;
+    labelFrame.origin = CGPointMake(arrowFrame.origin.x + arrowFrame.size.width + 7, _labelOffset + CGFloor((self.frame.size.height - labelFrame.size.height)));
+    self.buttonTitleLabel.frame = labelFrame;
+}
+
+- (void)setHighlighted:(BOOL)highlighted
+{
+    _arrowView.alpha = highlighted ? 0.4f : 1.0f;
+    
+    [super setHighlighted:highlighted];
+}
+
+- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
+{
+    if (self.alpha > FLT_EPSILON && !self.hidden && CGRectContainsPoint(CGRectInset(self.bounds, -5, -5), point))
+        return self;
+    
+    return [super hitTest:point withEvent:event];
+}
+
+@end