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working on adding accessibility support for text renderers
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| // | ||
| // TUITextRenderer+Accessibility.h | ||
| // TwUI | ||
| // | ||
| // Created by Josh Abernathy on 10/27/11. | ||
| // Copyright (c) 2011 Maybe Apps, LLC. All rights reserved. | ||
| // | ||
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| #import <Foundation/Foundation.h> | ||
| #import "TUITextRenderer.h" | ||
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| @interface TUITextRenderer (Accessibility) | ||
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| @end |
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| @@ -0,0 +1,108 @@ | ||
| // | ||
| // TUITextRenderer+Accessibility.m | ||
| // TwUI | ||
| // | ||
| // Created by Josh Abernathy on 10/27/11. | ||
| // Copyright (c) 2011 Maybe Apps, LLC. All rights reserved. | ||
| // | ||
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| #import "TUITextRenderer+Accessibility.h" | ||
| #import "TUIView.h" | ||
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| @implementation TUITextRenderer (Accessibility) | ||
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| #pragma mark NSAccessibility | ||
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| - (id)accessibilityHitTest:(NSPoint)point | ||
| { | ||
| return self; | ||
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| if(CGRectContainsPoint(self.frame, point)) { | ||
| return self; | ||
| } else { | ||
| return nil; | ||
| } | ||
| } | ||
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| - (BOOL)accessibilityIsIgnored | ||
| { | ||
| return NO; | ||
| } | ||
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| - (NSArray *)accessibilityAttributeNames | ||
| { | ||
| static NSArray *attributes = nil; | ||
| if(attributes == nil) { | ||
| attributes = [[NSArray alloc] initWithObjects:NSAccessibilityRoleAttribute, NSAccessibilityRoleDescriptionAttribute, NSAccessibilityFocusedAttribute, NSAccessibilityChildrenAttribute, NSAccessibilityParentAttribute, NSAccessibilityWindowAttribute, NSAccessibilityTopLevelUIElementAttribute, NSAccessibilityPositionAttribute, NSAccessibilitySizeAttribute, NSAccessibilityDescriptionAttribute, NSAccessibilityValueAttribute, NSAccessibilityEnabledAttribute, nil]; | ||
| } | ||
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| return attributes; | ||
| } | ||
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| - (id)accessibilityAttributeValue:(NSString *)attribute | ||
| { | ||
| id practicalSuperview = (id) self.view; | ||
| if([attribute isEqualToString:NSAccessibilityRoleAttribute]) { | ||
| return NSAccessibilityStaticTextRole; | ||
| } else if([attribute isEqualToString:NSAccessibilityRoleDescriptionAttribute]) { | ||
| return NSAccessibilityStaticTextRole; | ||
| } else if([attribute isEqualToString:NSAccessibilityFocusedAttribute]) { | ||
| id focusedElement = [NSApp accessibilityAttributeValue:NSAccessibilityFocusedUIElementAttribute]; | ||
| return [NSNumber numberWithBool:[focusedElement isEqual:self]]; | ||
| } else if([attribute isEqualToString:NSAccessibilityParentAttribute]) { | ||
| return NSAccessibilityUnignoredAncestor(practicalSuperview); | ||
| } else if([attribute isEqualToString:NSAccessibilityWindowAttribute]) { | ||
| return [practicalSuperview accessibilityAttributeValue:NSAccessibilityWindowAttribute]; | ||
| } else if([attribute isEqualToString:NSAccessibilityTopLevelUIElementAttribute]) { | ||
| return [practicalSuperview accessibilityAttributeValue:NSAccessibilityTopLevelUIElementAttribute]; | ||
| } else if([attribute isEqualToString:NSAccessibilityPositionAttribute]) { | ||
| CGRect viewFrame = [self.view frameInNSView]; | ||
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| NSPoint p = [[(NSView *)[self.view nsView] window] convertBaseToScreen:NSMakePoint(viewFrame.origin.x + self.frame.origin.x, viewFrame.origin.y + self.frame.origin.y)]; | ||
| return [NSValue valueWithPoint:p]; | ||
| } else if([attribute isEqualToString:NSAccessibilitySizeAttribute]) { | ||
| return [NSValue valueWithSize:[self frame].size]; | ||
| } else if([attribute isEqualToString:NSAccessibilityChildrenAttribute]) { | ||
| return [NSArray array]; | ||
| } else if([attribute isEqualToString:NSAccessibilityDescriptionAttribute]) { | ||
| return [self.attributedString string]; | ||
| } else if([attribute isEqualToString:NSAccessibilityValueAttribute]) { | ||
| return [self.attributedString string]; | ||
| } else if([attribute isEqualToString:NSAccessibilityTitleAttribute]) { | ||
| return [self.attributedString string]; | ||
| } else if([attribute isEqualToString:NSAccessibilityEnabledAttribute]) { | ||
| return [NSNumber numberWithBool:YES]; | ||
| }else { | ||
| return nil; | ||
| } | ||
| } | ||
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| - (BOOL)accessibilityIsAttributeSettable:(NSString *)attribute | ||
| { | ||
| if([attribute isEqualToString:NSAccessibilityFocusedAttribute]) { | ||
| return NO; // TODO: should this be settable? | ||
| } else { | ||
| return NO; | ||
| } | ||
| } | ||
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| - (void)accessibilitySetValue:(id)value forAttribute:(NSString *)attribute | ||
| { | ||
| if([attribute isEqualToString:NSAccessibilityFocusedAttribute]) { | ||
| // TODO: should we set this? | ||
| } | ||
| } | ||
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| - (NSArray *)accessibilityActionNames | ||
| { | ||
| return [NSArray array]; | ||
| } | ||
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| - (id)accessibilityFocusedUIElement | ||
| { | ||
| return NSAccessibilityUnignoredAncestor(self); | ||
| } | ||
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| @end |