Adding in some functionality and utilities towards ensuring that deal…

…ings with TiUIView and children can be done on only the main thread.

iphone/Classes/TiAction.h

@@ -21,4 +21,9 @@
 -(id)initWithTarget:(id)target_ selector:(SEL)selector_ arg:(id)arg_;
 -(void)execute;
 
+@property(nonatomic,readonly)	id target;
+@property(nonatomic,readonly)	SEL selector;
+@property(nonatomic,readonly)	id arg;
+
+
 @end

iphone/Classes/TiAction.m

@@ -9,6 +9,7 @@
 
 
 @implementation TiAction
+@synthesize target,selector,arg;
 
 -(id)initWithTarget:(id)target_ selector:(SEL)selector_ arg:(id)arg_
 {

iphone/Classes/TiBase.h

@@ -366,11 +366,21 @@ enum {
 #ifdef DEBUG
 #define FRAME_DEBUG(f) \
 NSLog(@"FRAME -- size=%fx%f, origin=%f,%f",f.size.width,f.size.height,f.origin.x,f.origin.y);
+
+#define WARN_IF_BACKGROUND_THREAD	\
+if(![NSThread isMainThread])	\
+{	\
+	NSLog(@"[WARN] %@%@ was not running on the main thread.",NSStringFromClass([self class]),CODELOCATION);	\
+}	\
+
 #else
 #define FRAME_DEBUG(f) 
+
+#define CHECK_MAIN_THREAD	
 #endif
 
 
+
 #define DEFINE_DEF_PROP(name,defval)\
 -(id)name \
 {\

iphone/Classes/TiViewProxy.h

@@ -123,8 +123,11 @@
 -(BOOL)isAutoHeightOrWidth;
 -(BOOL)canHaveControllerParent;
 
+-(void)makeViewPerformSelector:(SEL)selector withObject:(id)object createIfNeeded:(BOOL)create waitUntilDone:(BOOL)wait;
+
 @end
 
+
 #define USE_VIEW_FOR_METHOD(resultType,methodname,inputType)	\
 -(resultType) methodname: (inputType)value	\
 {	\
@@ -141,6 +144,7 @@
 }
 
 
+
 #define USE_VIEW_FOR_VERIFY_WIDTH	USE_VIEW_FOR_METHOD(CGFloat,verifyWidth,CGFloat)
 #define USE_VIEW_FOR_VERIFY_HEIGHT	USE_VIEW_FOR_METHOD(CGFloat,verifyHeight,CGFloat)
 #define USE_VIEW_FOR_AUTO_WIDTH		USE_VIEW_FOR_METHOD(CGFloat,autoWidthForWidth,CGFloat)

iphone/Classes/TiViewProxy.m

@@ -12,6 +12,8 @@
 #import "TiRect.h"
 #import "TiLayoutQueue.h"
 
+#import "TiAction.h"
+
 #import <QuartzCore/QuartzCore.h>
 #import <libkern/OSAtomic.h>
 #import <pthread.h>
@@ -586,6 +588,13 @@ -(TiUIView*)view
 {
 	if (view == nil)
 	{
+		WARN_IF_BACKGROUND_THREAD
+#ifdef DEBUG
+		if(![NSThread isMainThread])
+		{
+			NSLog(@"[WARN] Break here");
+		}
+#endif
 		[self viewWillAttach];
 
 		// on open we need to create a new view
@@ -1317,5 +1326,35 @@ -(void)setCenter:(id)value
 	[self setNeedsReposition];
 }
 
+-(void)makeViewPerformAction:(TiAction *)action
+{
+	[[self view] performSelector:[action selector] withObject:[action arg]];
+}
+
+-(void)makeViewPerformSelector:(SEL)selector withObject:(id)object createIfNeeded:(BOOL)create waitUntilDone:(BOOL)wait
+{
+	BOOL isAttached = [self viewAttached];
+
+	if(!isAttached && !create)
+	{
+		return;
+	}
+
+	if([NSThread isMainThread])
+	{
+		[[self view] performSelector:selector withObject:object];
+		return;
+	}
+
+	if(isAttached)
+	{
+		[[self view] performSelectorOnMainThread:selector withObject:object waitUntilDone:wait];
+		return;
+	}
+
+	TiAction * ourAction = [[TiAction alloc] initWithTarget:nil selector:selector arg:object];
+	[self performSelectorOnMainThread:@selector(makeViewPerformAction:) withObject:ourAction waitUntilDone:wait];
+	[ourAction release];
+}
 
 @end