83 lines
3.9 KiB
Objective-C
83 lines
3.9 KiB
Objective-C
/*
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Copyright (c) 2015, Apple Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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3. Neither the name of the copyright holder(s) nor the names of any contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission. No license is granted to the trademarks of
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the copyright holders even if such marks are included in this software.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import <ResearchKit/ORKDefines.h>
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#import <ResearchKit/ORKHelpers_Internal.h>
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NS_ASSUME_NONNULL_BEGIN
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@class ORKScaleSlider;
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// Used to properly format values from the ORKScaleSlider.
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ORK_EXTERN NSString * _Nullable ORKAccessibilityFormatScaleSliderValue(CGFloat value, ORKScaleSlider *slider);
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ORK_EXTERN NSString * _Nullable ORKAccessibilityFormatContinuousScaleSliderValue(CGFloat value, ORKScaleSlider *slider);
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// Performs a block on the main thread after a delay. If Voice Over is not running, the block is performed immediately.
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ORK_EXTERN void ORKAccessibilityPerformBlockAfterDelay(NSTimeInterval delay, void(^block)(void));
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// Convenience for posting an accessibility notification after a delay.
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ORK_INLINE void ORKAccessibilityPostNotificationAfterDelay(UIAccessibilityNotifications notification, _Nullable id argument, NSTimeInterval delay) {
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ORKAccessibilityPerformBlockAfterDelay(delay, ^{
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UIAccessibilityPostNotification(notification, argument);
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});
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}
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// Convenience for checking if accessibility large text is enabled
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ORK_INLINE BOOL ORKIsAccessibilityLargeTextEnabled(void) {
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NSString *contentSize = [UIApplication sharedApplication].preferredContentSizeCategory;
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if ([@[UIContentSizeCategoryExtraExtraExtraLarge,
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UIContentSizeCategoryAccessibilityExtraLarge,
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UIContentSizeCategoryAccessibilityMedium, UIContentSizeCategoryAccessibilityLarge,
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UIContentSizeCategoryAccessibilityExtraExtraLarge,
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UIContentSizeCategoryAccessibilityExtraExtraExtraLarge,
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] containsObject:contentSize]) {
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return YES;
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} else {
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return NO;
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}
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}
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// Convenience for checking which UIImageSymbolScale in regards to ccessibilityLargeTextEnabled
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ORK_INLINE UIImageSymbolScale ORKImageScaleToUse(void) {
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if (ORKIsAccessibilityLargeTextEnabled()) {
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return UIImageSymbolScaleMedium;
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} else {
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return UIImageSymbolScaleLarge;
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}
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}
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// Creates a string suitable for Voice Over by joining the variables with ", " and avoiding nil and empty strings.
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#define ORKAccessibilityStringForVariables(...) _ORKAccessibilityStringForVariables(ORK_NARG(__VA_ARGS__), ##__VA_ARGS__)
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ORK_EXTERN NSString *_ORKAccessibilityStringForVariables(NSInteger numParameters, NSString *baseString, ...);
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NS_ASSUME_NONNULL_END
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