Build ChatListUI

submodules/LegacyComponents/Sources/TGPhotoCropControl.m

@@ -0,0 +1,135 @@
+#import "TGPhotoCropControl.h"
+
+#import "LegacyComponentsInternal.h"
+
+@interface TGPhotoCropControl () <UIGestureRecognizerDelegate>
+{
+    UIPanGestureRecognizer *_panGestureRecognizer;
+    UILongPressGestureRecognizer *_pressGestureRecognizer;
+    
+    bool _beganInteraction;
+    bool _endedInteraction;
+}
+@end
+
+@implementation TGPhotoCropControl
+
+- (instancetype)initWithFrame:(CGRect)frame
+{
+    self = [super initWithFrame:frame];
+    if (self != nil)
+    {
+        self.backgroundColor = [UIColor clearColor];
+        self.exclusiveTouch = YES;
+        
+        _pressGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handlePress:)];
+        _pressGestureRecognizer.delegate = self;
+        _pressGestureRecognizer.minimumPressDuration = 0.1f;
+        [self addGestureRecognizer:_pressGestureRecognizer];
+        
+        _panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
+        _panGestureRecognizer.delegate = self;
+        [self addGestureRecognizer:_panGestureRecognizer];
+    }
+    return self;
+}
+
+- (void)handlePress:(UILongPressGestureRecognizer *)gestureRecognizer
+{
+    switch (gestureRecognizer.state)
+    {
+        case UIGestureRecognizerStateBegan:
+        {
+            if (_beganInteraction)
+                return;
+            
+            if (self.didBeginResizing != nil)
+                self.didBeginResizing(self);
+            
+            _endedInteraction = false;
+            _beganInteraction = true;
+        }
+            break;
+
+        case UIGestureRecognizerStateEnded:
+        case UIGestureRecognizerStateCancelled:
+        {
+            _beganInteraction = false;
+            
+            if (_endedInteraction)
+                return;
+            
+            if (self.didEndResizing != nil)
+                self.didEndResizing(self);
+            
+            _endedInteraction = true;
+        }
+            break;
+
+            
+        default:
+            break;
+    }
+}
+
+- (void)handlePan:(UIPanGestureRecognizer *)gestureRecognizer
+{
+    CGPoint translation = [gestureRecognizer translationInView:self.superview];
+    translation = CGPointMake(CGRound(translation.x), translation.y);
+    
+    switch (gestureRecognizer.state)
+    {
+        case UIGestureRecognizerStateBegan:
+        {
+            if (_beganInteraction)
+                return;
+            
+            if (self.didBeginResizing != nil)
+                self.didBeginResizing(self);
+            
+            _endedInteraction = false;
+            _beganInteraction = true;
+        }
+        case UIGestureRecognizerStateChanged:
+        {
+            if (self.didResize != nil)
+                self.didResize(self, translation);
+            
+            [gestureRecognizer setTranslation:CGPointZero inView:self.superview];
+        }
+            break;
+            
+        case UIGestureRecognizerStateEnded:
+        case UIGestureRecognizerStateCancelled:
+        {
+            _beganInteraction = false;
+            
+            if (_endedInteraction)
+                return;
+            
+            if (self.didEndResizing != nil)
+                self.didEndResizing(self);
+            
+            _endedInteraction = true;
+        }
+            break;
+        
+        default:
+            break;
+    }
+}
+
+- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)__unused gestureRecognizer
+{
+    if (self.shouldBeginResizing != nil)
+        return self.shouldBeginResizing(self);
+    
+    return true;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)__unused gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)__unused otherGestureRecognizer
+{
+    return true;
+}
+
+@end