[TIMOB-1242] Support to draggable annotations (Drag & Drop)

iphone/Classes/MapModule.h

@@ -19,6 +19,11 @@
 @property(nonatomic,readonly) NSNumber *ANNOTATION_GREEN;
 @property(nonatomic,readonly) NSNumber *ANNOTATION_PURPLE;
 
+@property(nonatomic,readonly) NSNumber *ANNOTATION_DRAG_STATE_NONE;
+@property(nonatomic,readonly) NSNumber *ANNOTATION_DRAG_STATE_START;
+@property(nonatomic,readonly) NSNumber *ANNOTATION_DRAG_STATE_DRAG;
+@property(nonatomic,readonly) NSNumber *ANNOTATION_DRAG_STATE_CANCEL;
+@property(nonatomic,readonly) NSNumber *ANNOTATION_DRAG_STATE_END;
 
 @end
 

iphone/Classes/MapModule.m

@@ -18,6 +18,12 @@ @implementation MapModule
 MAKE_SYSTEM_PROP(ANNOTATION_GREEN,MKPinAnnotationColorGreen);
 MAKE_SYSTEM_PROP(ANNOTATION_PURPLE,MKPinAnnotationColorPurple);
 
+MAKE_SYSTEM_PROP(ANNOTATION_DRAG_STATE_NONE,MKAnnotationViewDragStateNone);
+MAKE_SYSTEM_PROP(ANNOTATION_DRAG_STATE_START,MKAnnotationViewDragStateStarting);
+MAKE_SYSTEM_PROP(ANNOTATION_DRAG_STATE_DRAG,MKAnnotationViewDragStateDragging);
+MAKE_SYSTEM_PROP(ANNOTATION_DRAG_STATE_CANCEL,MKAnnotationViewDragStateCanceling);
+MAKE_SYSTEM_PROP(ANNOTATION_DRAG_STATE_END,MKAnnotationViewDragStateEnding);
+
 @end
 
 #endif

iphone/Classes/TiMapAnnotationProxy.m

@@ -117,6 +117,12 @@ -(CLLocationCoordinate2D)coordinate
 	return result;
 }
 
+-(void)setCoordinate:(CLLocationCoordinate2D)coordinate
+{
+	[self setValue:[NSNumber numberWithDouble:coordinate.latitude] forUndefinedKey:@"latitude"];
+	[self setValue:[NSNumber numberWithDouble:coordinate.longitude] forUndefinedKey:@"longitude"];
+}
+
 // Title and subtitle for use by selection UI.
 - (NSString *)title
 {

iphone/Classes/TiMapView.h

@@ -54,6 +54,7 @@
 -(void)zoom:(id)args;
 -(void)addRoute:(id)args;
 -(void)removeRoute:(id)args;
+-(void)firePinChangeDragState:(MKAnnotationView *) pinview newState:(MKAnnotationViewDragState)newState fromOldState:(MKAnnotationViewDragState)oldState;
 
 #pragma mark Framework
 -(void)refreshAnnotation:(TiMapAnnotationProxy*)proxy readd:(BOOL)yn;

iphone/Classes/TiMapView.m

@@ -573,6 +573,47 @@ - (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacem
 	[map addAnnotation:placemark];
 }
 
+- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)annotationView didChangeDragState:(MKAnnotationViewDragState)newState fromOldState:(MKAnnotationViewDragState)oldState
+{
+	[self firePinChangeDragState:annotationView newState:newState fromOldState:oldState];
+}
+
+- (void)firePinChangeDragState:(MKAnnotationView *) pinview newState:(MKAnnotationViewDragState)newState fromOldState:(MKAnnotationViewDragState)oldState 
+{
+	TiMapAnnotationProxy *viewProxy = [self proxyForAnnotation:pinview];
+
+	if (viewProxy == nil)
+		return;
+
+	TiProxy * ourProxy = [self proxy];
+	BOOL parentWants = [ourProxy _hasListeners:@"pinchangedragstate"];
+	BOOL viewWants = [viewProxy _hasListeners:@"pinchangedragstate"];
+
+	if(!parentWants && !viewWants)
+		return;
+
+	id title = [viewProxy title];
+	if (title == nil)
+		title = [NSNull null];
+
+	NSNumber * indexNumber = NUMINT([pinview tag]);
+
+	NSDictionary * event = [NSDictionary dictionaryWithObjectsAndKeys:
+								viewProxy,@"annotation",
+								ourProxy,@"map",
+								title,@"title",
+								indexNumber,@"index",
+								NUMINT(newState),@"newState",
+								NUMINT(oldState),@"oldState",
+								nil];
+
+	if (parentWants)
+		[ourProxy fireEvent:@"pinchangedragstate" withObject:event];
+
+	if (viewWants)
+		[viewProxy fireEvent:@"pinchangedragstate" withObject:event];
+}
+
 - (TiMapAnnotationProxy*)proxyForAnnotation:(MKAnnotationView*)pinview
 {
 	for (id annotation in [map annotations])
@@ -685,6 +726,11 @@ - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnno
 		{
 			annView.rightCalloutAccessoryView = right;
 		}
+
+		BOOL draggable = [TiUtils boolValue: [ann valueForUndefinedKey:@"draggable"]];
+		if (draggable && [[MKAnnotationView class] instancesRespondToSelector:NSSelectorFromString(@"isDraggable")])
+			[annView performSelector:NSSelectorFromString(@"setDraggable:") withObject:[NSNumber numberWithBool:YES]];
+
 		annView.userInteractionEnabled = YES;
 		annView.tag = [ann tag];
 		return annView;