- Pickin up firstResponder fix

src/TTGlobal.m

@@ -38,8 +38,19 @@ BOOL TTIsEmptyString(NSObject* object) {
 }
 
 BOOL TTIsKeyboardVisible() {
-  UIWindow* window = [UIApplication sharedApplication].keyWindow;
-  return !![window performSelector:@selector(firstResponder)];
+    NSArray *windows = [[UIApplication sharedApplication] windows];
+    for( UIWindow *window in [windows reverseObjectEnumerator] )
+    {
+        for( UIView *view in [window subviews] )
+        {
+            if( !strcmp(object_getClassName(view), "UIKeyboard") )
+            {
+                return YES;
+            }
+        }
+    }
+
+    return NO;
 }
 
 UIDeviceOrientation TTDeviceOrientation() {

src/TTLabel.m

@@ -56,6 +56,22 @@ - (CGSize)sizeThatFits:(CGSize)size {
   return [_style addToSize:CGSizeZero context:context];
 }
 
+
+//////////////////////////////////////////////////////////////////////////////////////////////////
+// UIAccessibility
+
+- (BOOL)isAccessibilityElement {
+    return YES;
+}
+
+- (NSString *)accessibilityLabel {
+    return _text;
+}
+
+- (UIAccessibilityTraits)accessibilityTraits {
+    return [super accessibilityTraits] | UIAccessibilityTraitStaticText;
+}
+
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 // TTStyleDelegate
 

src/Three20.xcodeproj/project.pbxproj

@@ -139,6 +139,8 @@
 		BEF341970F8042520027E93C /* TTStyledTextLabel.h in Headers */ = {isa = PBXBuildFile; fileRef = BEF341960F8042520027E93C /* TTStyledTextLabel.h */; };
 		FE15B9BB1015A0D500B5C4E6 /* UIFontAdditions.h in Headers */ = {isa = PBXBuildFile; fileRef = FE15B9B91015A0D500B5C4E6 /* UIFontAdditions.h */; };
 		FE15B9BC1015A0D500B5C4E6 /* UIFontAdditions.m in Sources */ = {isa = PBXBuildFile; fileRef = FE15B9BA1015A0D500B5C4E6 /* UIFontAdditions.m */; };
+		FEF03C0710B39DBA00844C02 /* UIWindowAdditions.m in Sources */ = {isa = PBXBuildFile; fileRef = FEF03C0610B39DBA00844C02 /* UIWindowAdditions.m */; };
+		FEF03C0910B39DC900844C02 /* UIWindowAdditions.h in Headers */ = {isa = PBXBuildFile; fileRef = FEF03C0810B39DC900844C02 /* UIWindowAdditions.h */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -275,6 +277,8 @@
 		BEF341960F8042520027E93C /* TTStyledTextLabel.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = TTStyledTextLabel.h; path = Three20/TTStyledTextLabel.h; sourceTree = "<group>"; };
 		FE15B9B91015A0D500B5C4E6 /* UIFontAdditions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = UIFontAdditions.h; path = Three20/UIFontAdditions.h; sourceTree = "<group>"; };
 		FE15B9BA1015A0D500B5C4E6 /* UIFontAdditions.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = UIFontAdditions.m; sourceTree = "<group>"; };
+		FEF03C0610B39DBA00844C02 /* UIWindowAdditions.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = UIWindowAdditions.m; sourceTree = "<group>"; };
+		FEF03C0810B39DC900844C02 /* UIWindowAdditions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = UIWindowAdditions.h; path = Three20/UIWindowAdditions.h; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -394,6 +398,8 @@
 				BEAF21210F4D329600D75F3B /* UIWebViewAdditions.m */,
 				BEAF21390F4D32E100D75F3B /* UIToolbarAdditions.h */,
 				BEAF211F0F4D329600D75F3B /* UIToolbarAdditions.m */,
+				FEF03C0810B39DC900844C02 /* UIWindowAdditions.h */,
+				FEF03C0610B39DBA00844C02 /* UIWindowAdditions.m */,
 			);
 			name = Additions;
 			sourceTree = "<group>";
@@ -633,6 +639,7 @@
 				BEA69ECD0FAC0FEC00DA7DDC /* TTWebController.h in Headers */,
 				BEA762500FBA1E290091B567 /* NSDateAdditions.h in Headers */,
 				FE15B9BB1015A0D500B5C4E6 /* UIFontAdditions.h in Headers */,
+				FEF03C0910B39DC900844C02 /* UIWindowAdditions.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -741,6 +748,7 @@
 				BEA69ECB0FAC0FD600DA7DDC /* TTWebController.m in Sources */,
 				BEA7624E0FBA1E220091B567 /* NSDateAdditions.m in Sources */,
 				FE15B9BC1015A0D500B5C4E6 /* UIFontAdditions.m in Sources */,
+				FEF03C0710B39DBA00844C02 /* UIWindowAdditions.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

src/Three20/TTGlobal.h

@@ -9,6 +9,7 @@
 #import "Three20/UIImageAdditions.h"
 #import "Three20/UIViewControllerAdditions.h"
 #import "Three20/UIViewAdditions.h"
+#import "Three20/UIWindowAdditions.h"
 #import "Three20/UITableViewAdditions.h"
 #import "Three20/UIWebViewAdditions.h"
 #import "Three20/UIToolbarAdditions.h"

src/Three20/UIViewAdditions.h

@@ -20,6 +20,9 @@
 @property(nonatomic,readonly) CGFloat screenViewY;
 @property(nonatomic,readonly) CGRect screenFrame;
 
+@property(nonatomic) CGPoint origin;
+@property(nonatomic) CGSize size;
+
 @property(nonatomic,readonly) CGFloat orientationWidth;
 @property(nonatomic,readonly) CGFloat orientationHeight;
 
@@ -31,6 +34,17 @@
 
 - (UIView*)findChildWithDescendant:(UIView*)descendant;
 
+/**
+ * Finds the first descendant view (including this view) that is a member of a particular class.
+ */
+- (UIView*)descendantOrSelfWithClass:(Class)cls;
+
+/**
+ * Finds the first ancestor view (including this view) that is a member of a particular class.
+ */
+- (UIView*)ancestorOrSelfWithClass:(Class)cls;
+
+
 /**
  * Removes all subviews.
  */
@@ -45,4 +59,37 @@
 
 - (CGPoint)offsetFromView:(UIView*)otherView;
 
+/**
+ * Calculates the offset of this view from another view in screen coordinates.
+ */
+- (CGPoint)offsetFromView:(UIView*)otherView;
+
+/**
+ * Calculates the frame of this view with parts that intersect with the keyboard subtracted.
+ *
+ * If the keyboard is not showing, this will simply return the normal frame.
+ */
+- (CGRect)frameWithKeyboardSubtracted:(CGFloat)plusHeight;
+
+/**
+ * Shows the view in a window at the bottom of the screen.
+ *
+ * This will send a notification pretending that a keyboard is about to appear so that
+ * observers who adjust their layout for the keyboard will also adjust for this view.
+ */
+- (void)presentAsKeyboardInView:(UIView*)containingView;
+
+/**
+ * Hides a view that was showing in a window at the bottom of the screen (via presentAsKeyboard).
+ *
+ * This will send a notification pretending that a keyboard is about to disappear so that
+ * observers who adjust their layout for the keyboard will also adjust for this view.
+ */
+- (void)dismissAsKeyboard:(BOOL)animated;
+
+/**
+ * The view controller whose view contains this view.
+ */
+- (UIViewController*)viewController;
+
 @end

src/Three20/UIWindowAdditions.h

@@ -0,0 +1,19 @@
+//
+//  UIWindowAdditions.h
+//  Three20
+//
+//  Created by Mike on 10/31/09.
+//  Copyright 2009 Prime31 Studios. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+
+
+@interface UIWindow (TTCategory)
+
+- (UIView*)findFirstResponder;
+
+- (UIView*)findFirstResponderInView:(UIView*)topView;
+
+@end

src/UITableViewAdditions.m

@@ -50,7 +50,7 @@ - (void)touchRowAtIndexPath:(NSIndexPath*)indexPath animated:(BOOL)animated {
 }
 
 - (void)scrollFirstResponderIntoView {
-  UIView* responder = [self.window performSelector:@selector(firstResponder)];
+  UIView* responder = [self.window findFirstResponder];
   UITableViewCell* cell = (UITableViewCell*)[responder firstParentOfClass:[UITableViewCell class]];
   if (cell) {
     NSIndexPath* indexPath = [self indexPathForCell:cell];

src/UIViewAdditions.m

@@ -216,6 +216,26 @@ - (CGRect)screenFrame {
   return CGRectMake(self.screenViewX, self.screenViewY, self.width, self.height);
 }
 
+- (CGPoint)origin {
+    return self.frame.origin;
+}
+
+- (void)setOrigin:(CGPoint)origin {
+    CGRect frame = self.frame;
+    frame.origin = origin;
+    self.frame = frame;
+}
+
+- (CGSize)size {
+    return self.frame.size;
+}
+
+- (void)setSize:(CGSize)size {
+    CGRect frame = self.frame;
+    frame.size = size;
+    self.frame = frame;
+}
+
 - (CGPoint)offsetFromView:(UIView*)otherView {
   CGFloat x = 0, y = 0;
   for (UIView* view = self; view && view != otherView; view = view.superview) {
@@ -281,6 +301,29 @@ - (UIView*)findChildWithDescendant:(UIView*)descendant {
   return nil;
 }
 
+- (UIView*)descendantOrSelfWithClass:(Class)cls {
+    if ([self isKindOfClass:cls])
+        return self;
+
+    for (UIView* child in self.subviews) {
+        UIView* it = [child descendantOrSelfWithClass:cls];
+        if (it)
+            return it;
+    }
+
+    return nil;
+}
+
+- (UIView*)ancestorOrSelfWithClass:(Class)cls {
+    if ([self isKindOfClass:cls]) {
+        return self;
+    } else if (self.superview) {
+        return [self.superview ancestorOrSelfWithClass:cls];
+    } else {
+        return nil;
+    }
+}
+
 - (void)removeSubviews {
   while (self.subviews.count) {
     UIView* child = self.subviews.lastObject;
@@ -302,4 +345,96 @@ - (void)simulateTapAtPoint:(CGPoint)location {
 }
 #endif
 
+- (CGRect)frameWithKeyboardSubtracted:(CGFloat)plusHeight {
+    CGRect frame = self.frame;
+    if( TTIsKeyboardVisible() )
+    {
+        CGRect screenFrame = TTScreenBounds();
+        CGFloat keyboardTop = (screenFrame.size.height - (TTKeyboardHeight() + plusHeight));
+        CGFloat screenBottom = self.screenY + frame.size.height;
+        CGFloat diff = screenBottom - keyboardTop;
+        if (diff > 0) {
+            frame.size.height -= diff;
+        }
+    }
+    return frame;
+}
+
+- (void)presentAsKeyboardAnimationDidStop {
+    CGRect screenFrame = TTScreenBounds();
+    CGRect bounds = CGRectMake(0, 0, screenFrame.size.width, self.height);
+    CGPoint centerBegin = CGPointMake(floor(screenFrame.size.width/2 - self.width/2),
+                                      screenFrame.size.height + floor(self.height/2));
+    CGPoint centerEnd = CGPointMake(floor(screenFrame.size.width/2 - self.width/2),
+                                    screenFrame.size.height - floor(self.height/2));
+
+    NSDictionary* userInfo = [NSDictionary dictionaryWithObjectsAndKeys:
+                              [NSValue valueWithCGRect:bounds], UIKeyboardBoundsUserInfoKey,
+                              [NSValue valueWithCGPoint:centerBegin], UIKeyboardCenterBeginUserInfoKey,
+                              [NSValue valueWithCGPoint:centerEnd], UIKeyboardCenterEndUserInfoKey,
+                              nil];
+
+    [[NSNotificationCenter defaultCenter] postNotificationName:@"UIKeyboardWillShowNotification"
+                                                        object:self userInfo:userInfo];
+}
+
+- (void)dismissAsKeyboardAnimationDidStop {
+    [self removeFromSuperview];
+}
+
+- (void)presentAsKeyboardInView:(UIView*)containingView {
+    self.top = containingView.height;
+    [containingView addSubview:self];
+
+    [UIView beginAnimations:nil context:nil];
+    [UIView setAnimationDuration:TT_TRANSITION_DURATION];
+    [UIView setAnimationDelegate:self];
+    [UIView setAnimationDidStopSelector:@selector(presentAsKeyboardAnimationDidStop)];
+    self.top -= self.height;
+    [UIView commitAnimations];
+}
+
+- (void)dismissAsKeyboard:(BOOL)animated {
+    CGRect screenFrame = TTScreenBounds();
+    CGRect bounds = CGRectMake(0, 0, screenFrame.size.width, self.height);
+    CGPoint centerBegin = CGPointMake(floor(screenFrame.size.width/2 - self.width/2),
+                                      screenFrame.size.height - floor(self.height/2));
+    CGPoint centerEnd = CGPointMake(floor(screenFrame.size.width/2 - self.width/2),
+                                    screenFrame.size.height + floor(self.height/2));
+
+    NSDictionary* userInfo = [NSDictionary dictionaryWithObjectsAndKeys:
+                              [NSValue valueWithCGRect:bounds], UIKeyboardBoundsUserInfoKey,
+                              [NSValue valueWithCGPoint:centerBegin], UIKeyboardCenterBeginUserInfoKey,
+                              [NSValue valueWithCGPoint:centerEnd], UIKeyboardCenterEndUserInfoKey,
+                              nil];
+
+    [[NSNotificationCenter defaultCenter] postNotificationName:@"UIKeyboardWillHideNotification"
+                                                        object:self userInfo:userInfo];
+
+    if (animated) {
+        [UIView beginAnimations:nil context:nil];
+        [UIView setAnimationDuration:TT_TRANSITION_DURATION];
+        [UIView setAnimationDelegate:self];
+        [UIView setAnimationDidStopSelector:@selector(dismissAsKeyboardAnimationDidStop)];
+    }
+
+    self.top += self.height;
+
+    if (animated) {
+        [UIView commitAnimations];
+    } else {
+        [self dismissAsKeyboardAnimationDidStop];
+    }
+}
+
+- (UIViewController*)viewController {
+    for (UIView* next = [self superview]; next; next = next.superview) {
+        UIResponder* nextResponder = [next nextResponder];
+        if ([nextResponder isKindOfClass:[UIViewController class]]) {
+            return (UIViewController*)nextResponder;
+        }
+    }
+    return nil;
+}
+
 @end

src/UIWindowAdditions.m

@@ -0,0 +1,37 @@
+//
+//  UIWindowAdditions.m
+//  Three20
+//
+//  Created by Mike on 10/31/09.
+//  Copyright 2009 Prime31 Studios. All rights reserved.
+//
+
+#import "UIWindowAdditions.h"
+
+
+@implementation UIWindow (TTCategory)
+
+- (UIView*)findFirstResponder
+{
+	return [self findFirstResponderInView:self];
+}
+
+
+- (UIView*)findFirstResponderInView:(UIView*)topView
+{
+	if( [topView isFirstResponder] )
+		return topView;
+
+	for( UIView *subView in topView.subviews )
+	{
+		if( [subView isFirstResponder] )
+			return subView;
+
+		UIView *firstResponderCheck = [self findFirstResponderInView:subView];
+		if( firstResponderCheck != nil )
+			return firstResponderCheck;
+	}
+	return nil;
+}
+
+@end