mirror of
https://gitee.com/shuto-github/phonegap-mobile-accessibility.git
synced 2026-05-08 00:00:02 +08:00
Detect and receive notification of more iOS accessibility features
Adds following methods for detecting iOS accessibility features: MobileAccessibility.isGuidedAccessEnabled() MobileAccessibility.isInvertColorsEnabled() MobileAccessibility.isGuidedAccessEnabled() MobileAccessibility.isInvertColorsEnabled() MobileAccessibility.isMonoAudioEnabled() Adds corresponding window events to subscribe to notifications of accessibility feature status updates: “guidedaccessstatusdidchange”, "invertcolorsstatusdidchange”, "monoaudiostatusdidchange" Adds following method for posting a notification as a string to be announced by VoiceOver: MobileAccessibility.postAnnouncementNotification()
This commit is contained in:
Michael Jordan
@@ -21,12 +21,28 @@
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@interface CDVMobileAccessibility : CDVPlugin {
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NSString* callbackId;
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NSString* commandCallbackId;
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BOOL voiceOverRunning;
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BOOL closeCaptioningEnabled;
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BOOL guidedAccessEnabled;
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BOOL invertColorsEnabled;
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BOOL monoAudioEnabled;
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}
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@property (strong) NSString* callbackId;
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@property (strong) NSString* commandCallbackId;
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@property BOOL voiceOverRunning;
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@property BOOL closeCaptioningEnabled;
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@property BOOL guidedAccessEnabled;
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@property BOOL invertColorsEnabled;
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@property BOOL monoAudioEnabled;
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- (void) isVoiceOverRunning:(CDVInvokedUrlCommand*)command;
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- (void) isClosedCaptioningEnabled:(CDVInvokedUrlCommand*)command;
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- (void) isGuidedAccessEnabled:(CDVInvokedUrlCommand*)command;
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- (void) isInvertColorsEnabled:(CDVInvokedUrlCommand*)command;
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- (void) isMonoAudioEnabled:(CDVInvokedUrlCommand*)command;
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- (void) postAnnouncementNotification:(CDVInvokedUrlCommand*)command;
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- (void) start:(CDVInvokedUrlCommand*)command;
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- (void) stop:(CDVInvokedUrlCommand*)command;
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@@ -19,6 +19,7 @@
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#import "CDVMobileAccessibility.h"
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#import <Cordova/CDVAvailability.h>
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#import <MediaAccessibility/MediaAccessibility.h>
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@interface CDVMobileAccessibility ()
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// add any property overrides
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@@ -27,6 +28,12 @@
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@implementation CDVMobileAccessibility
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@synthesize callbackId;
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@synthesize commandCallbackId;
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@synthesize voiceOverRunning;
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@synthesize closeCaptioningEnabled;
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@synthesize guidedAccessEnabled;
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@synthesize invertColorsEnabled;
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@synthesize monoAudioEnabled;
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// //////////////////////////////////////////////////
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@@ -45,6 +52,8 @@
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if ([self settingForKey:setting]) {
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// set your setting, other init here
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}
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onPause) name:UIApplicationDidEnterBackgroundNotification object:nil];
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}
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// //////////////////////////////////////////////////
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@@ -52,6 +61,9 @@
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- (void)dealloc
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{
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[self stop:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidEnterBackgroundNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationWillEnterForegroundNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidBecomeActiveNotification object:nil];
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}
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- (void)onReset
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@@ -59,24 +71,126 @@
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[self stop:nil];
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}
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- (void) onPause {
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidEnterBackgroundNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onResume) name:UIApplicationWillEnterForegroundNotification object:nil];
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}
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- (void)onResume
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationWillEnterForegroundNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onPause) name:UIApplicationDidEnterBackgroundNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onApplicationDidBecomeActive) name:UIApplicationDidBecomeActiveNotification object:nil];
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}
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- (void)onApplicationDidBecomeActive
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidBecomeActiveNotification object:nil];
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[self performSelector:@selector(sendMobileAccessibilityStatusChangedCallback) withObject:nil afterDelay:0.1 ];
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}
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// //////////////////////////////////////////////////
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#pragma Plugin interface
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- (void)isVoiceOverRunning:(CDVInvokedUrlCommand*)command
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{
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:UIAccessibilityIsVoiceOverRunning()];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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[self.commandDelegate runInBackground:^{
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self.voiceOverRunning = UIAccessibilityIsVoiceOverRunning();
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:self.voiceOverRunning];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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}];
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}
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- (void)isClosedCaptioningEnabled:(CDVInvokedUrlCommand*)command
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{
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:UIAccessibilityIsClosedCaptioningEnabled()];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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[self.commandDelegate runInBackground:^{
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self.closeCaptioningEnabled = [self getClosedCaptioningEnabledStatus];
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:self.closeCaptioningEnabled];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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}];
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}
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- (void)isGuidedAccessEnabled:(CDVInvokedUrlCommand*)command
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{
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[self.commandDelegate runInBackground:^{
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self.guidedAccessEnabled = UIAccessibilityIsGuidedAccessEnabled();
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:self.guidedAccessEnabled];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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}];
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}
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- (void)isInvertColorsEnabled:(CDVInvokedUrlCommand*)command
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{
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[self.commandDelegate runInBackground:^{
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self.invertColorsEnabled = UIAccessibilityIsInvertColorsEnabled();
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:self.invertColorsEnabled];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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}];
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}
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- (void)isMonoAudioEnabled:(CDVInvokedUrlCommand*)command
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{
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[self.commandDelegate runInBackground:^{
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self.monoAudioEnabled = UIAccessibilityIsMonoAudioEnabled();
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:self.monoAudioEnabled];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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}];
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}
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- (void)postAnnouncementNotification:(CDVInvokedUrlCommand *)command
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{
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CDVPluginResult* result = nil;
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NSString* notificationString = [command.arguments objectAtIndex:0];
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if (UIAccessibilityIsVoiceOverRunning() &&
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notificationString != nil && [notificationString length] > 0) {
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self.commandCallbackId = command.callbackId;
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[self.commandDelegate runInBackground:^{
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityAnnouncementDidFinish:) name:UIAccessibilityAnnouncementDidFinishNotification object:nil];
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UIAccessibilityPostNotification(UIAccessibilityAnnouncementNotification, notificationString);
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}];
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} else {
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result = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR];
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[self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
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}
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}
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- (void)mobileAccessibilityAnnouncementDidFinish:(NSNotification *)dict
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityAnnouncementDidFinishNotification object:nil];
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NSString* valueSpoken = [[dict userInfo] objectForKey:UIAccessibilityAnnouncementKeyStringValue];
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NSString* wasSuccessful = [[dict userInfo] objectForKey:UIAccessibilityAnnouncementKeyWasSuccessful];
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NSMutableDictionary* data = [NSMutableDictionary dictionaryWithCapacity:2];
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[data setObject:valueSpoken forKey:@"stringValue"];
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[data setObject:wasSuccessful forKey:@"wasSuccessful"];
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if (self.commandCallbackId) {
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:data];
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[self.commandDelegate sendPluginResult:result callbackId:self.commandCallbackId];
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self.commandCallbackId = nil;
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}
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}
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- (BOOL)getClosedCaptioningEnabledStatus
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{
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BOOL status = false;
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if (&MACaptionAppearanceGetDisplayType) {
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status = (MACaptionAppearanceGetDisplayType(kMACaptionAppearanceDomainUser) > kMACaptionAppearanceDisplayTypeAutomatic);
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} else {
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status = UIAccessibilityIsClosedCaptioningEnabled();
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}
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return status;
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}
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- (void)mobileAccessibilityStatusChanged:(NSNotification *)notification
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{
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[self sendMobileAccessibilityStatusChangedCallback];
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}
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- (void)sendMobileAccessibilityStatusChangedCallback
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{
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if (self.callbackId) {
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:[self getMobileAccessibilityStatus]];
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@@ -88,38 +202,59 @@
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/* Get the current mobile accessibility status. */
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- (NSDictionary*)getMobileAccessibilityStatus
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{
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NSMutableDictionary* mobileAccessibilityData = [NSMutableDictionary dictionaryWithCapacity:2];
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[mobileAccessibilityData setObject:[NSNumber numberWithBool:UIAccessibilityIsVoiceOverRunning()] forKey:@"isVoiceOverRunning"];
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[mobileAccessibilityData setObject:[NSNumber numberWithBool:UIAccessibilityIsClosedCaptioningEnabled()] forKey:@"isClosedCaptioningEnabled"];
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self.voiceOverRunning = UIAccessibilityIsVoiceOverRunning();
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self.closeCaptioningEnabled = [self getClosedCaptioningEnabledStatus];
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self.guidedAccessEnabled = UIAccessibilityIsGuidedAccessEnabled();
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self.invertColorsEnabled = UIAccessibilityIsInvertColorsEnabled();
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self.monoAudioEnabled = UIAccessibilityIsMonoAudioEnabled();
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NSMutableDictionary* mobileAccessibilityData = [NSMutableDictionary dictionaryWithCapacity:5];
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[mobileAccessibilityData setObject:[NSNumber numberWithBool:self.voiceOverRunning] forKey:@"isVoiceOverRunning"];
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[mobileAccessibilityData setObject:[NSNumber numberWithBool:self.closeCaptioningEnabled] forKey:@"isClosedCaptioningEnabled"];
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[mobileAccessibilityData setObject:[NSNumber numberWithBool:self.guidedAccessEnabled] forKey:@"isGuidedAccessEnabled"];
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[mobileAccessibilityData setObject:[NSNumber numberWithBool:self.invertColorsEnabled] forKey:@"isInvertColorsEnabled"];
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[mobileAccessibilityData setObject:[NSNumber numberWithBool:self.monoAudioEnabled] forKey:@"isMonoAudioEnabled"];
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return mobileAccessibilityData;
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}
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/* turn on MobileAccessibility monitoring*/
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/* start MobileAccessibility monitoring */
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- (void)start:(CDVInvokedUrlCommand*)command
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{
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self.callbackId = command.callbackId;
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[self.commandDelegate runInBackground:^{
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self.callbackId = command.callbackId;
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityVoiceOverStatusChanged object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityClosedCaptioningStatusDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityGuidedAccessStatusDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityInvertColorsStatusDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityMonoAudioStatusDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:)
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name:UIAccessibilityVoiceOverStatusChanged object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:)
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name:UIAccessibilityClosedCaptioningStatusDidChangeNotification object:nil];
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// Update the callback on start
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:[self getMobileAccessibilityStatus]];
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[result setKeepCallbackAsBool:YES];
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[self.commandDelegate sendPluginResult:result callbackId:self.callbackId];
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}];
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}
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/* stop MobileAccessibility monitoring */
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- (void)stop:(CDVInvokedUrlCommand*)command
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{
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// callback one last time to clear the callback function on JS side
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if (self.callbackId)
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{
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:[self getMobileAccessibilityStatus]];
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[result setKeepCallbackAsBool:NO];
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[self.commandDelegate sendPluginResult:result callbackId:self.callbackId];
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}
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self.callbackId = nil;
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[[NSNotificationCenter defaultCenter] removeObserver:self
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name:UIAccessibilityVoiceOverStatusChanged object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self
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name:UIAccessibilityClosedCaptioningStatusDidChangeNotification object:nil];
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[self.commandDelegate runInBackground:^{
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// callback one last time to clear the callback function on JS side
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if (self.callbackId)
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{
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:[self getMobileAccessibilityStatus]];
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[result setKeepCallbackAsBool:NO];
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[self.commandDelegate sendPluginResult:result callbackId:self.callbackId];
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}
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self.callbackId = nil;
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityVoiceOverStatusChanged object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityClosedCaptioningStatusDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityGuidedAccessStatusDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityInvertColorsStatusDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityAnnouncementDidFinishNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityMonoAudioStatusDidChangeNotification object:nil];
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}];
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}
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@end
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+86
-12
@@ -1,4 +1,4 @@
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/*
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cordova.define("com.phonegap.plugin.mobile-accessibility.mobile-accessibility", function(require, exports, module) {/*
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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@@ -26,58 +26,132 @@ var argscheck = require('cordova/argscheck'),
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var MobileAccessibility = function() {
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this._isVoiceOverRunning = false;
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this._isClosedCaptioningEnabled = false;
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this._isGuidedAccessEnabled = false;
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this._isInvertColorsEnabled = false;
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this._isMonoAudioEnabled = false;
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// Create new event handlers on the window (returns a channel instance)
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this.channels = {
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voiceoverstatuschanged:cordova.addWindowEventHandler("voiceoverstatuschanged"),
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closedcaptioningstatusdidchange:cordova.addWindowEventHandler("closedcaptioningstatusdidchange")
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closedcaptioningstatusdidchange:cordova.addWindowEventHandler("closedcaptioningstatusdidchange"),
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guidedaccessstatusdidchange:cordova.addWindowEventHandler("guidedaccessstatusdidchange"),
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invertcolorsstatusdidchange:cordova.addWindowEventHandler("invertcolorsstatusdidchange"),
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monoaudiostatusdidchange:cordova.addWindowEventHandler("monoaudiostatusdidchange")
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};
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for (var key in this.channels) {
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this.channels[key].onHasSubscribersChange = MobileAccessibility.onHasSubscribersChange;
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}
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};
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/**
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* @private
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* @ignore
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*/
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function handlers() {
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return mobileAccessibility.channels.voiceoverstatuschanged.numHandlers +
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mobileAccessibility.channels.closedcaptioningstatusdidchange.numHandlers;
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mobileAccessibility.channels.closedcaptioningstatusdidchange.numHandlers +
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mobileAccessibility.channels.invertcolorsstatusdidchange.numHandlers +
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mobileAccessibility.channels.monoaudiostatusdidchange.numHandlers +
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mobileAccessibility.channels.guidedaccessstatusdidchange.numHandlers;
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};
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/**
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*
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* Event handlers for when callbacks get registered for mobileAccessibility.
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* Keep track of how many handlers we have so we can start and stop the native MobileAccessibility listener
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* appropriately.
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* @private
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* @ignore
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*/
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MobileAccessibility.onHasSubscribersChange = function() {
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// If we just registered the first handler, make sure native listener is started.
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if (this.numHandlers === 1 && handlers() === 1) {
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console.log("MobileAccessibility.onHasSubscribersChange "+handlers());
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exec(mobileAccessibility._status, mobileAccessibility._error, "MobileAccessibility", "start", []);
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} else if (handlers() === 0) {
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exec(null, null, "MobileAccessibility", "stop", []);
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}
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};
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/**
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* Asynchronous call to native MobileAccessibility detemine if VoiceOver is running.
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* @param {function} callback A callback method to recieve the asynchronous result from the native MobileAccessibility.
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*/
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MobileAccessibility.prototype.isVoiceOverRunning = function(callback) {
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exec(callback, null, "MobileAccessibility", "isVoiceOverRunning", []);
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};
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/**
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* Asynchronous call to native MobileAccessibility to detemine if closed captioning is enabled.
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* @param {function} callback A callback method to recieve the asynchronous result from the native MobileAccessibility.
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*/
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MobileAccessibility.prototype.isClosedCaptioningEnabled = function(callback) {
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exec(callback, null, "MobileAccessibility", "isClosedCaptioningEnabled", []);
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};
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/**
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* Callback for mobileAccessibility status
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* Asynchronous call to native MobileAccessibility to detemine if the display colors have been inverted.
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* @param {function} callback A callback method to recieve the asynchronous result from the native MobileAccessibility.
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*/
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MobileAccessibility.prototype.isInvertColorsEnabled = function(callback) {
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exec(callback, null, "MobileAccessibility", "isInvertColorsEnabled", []);
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};
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/**
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* Asynchronous call to native MobileAccessibility to detemine if mono audio is enabled.
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* @param {function} callback A callback method to recieve the asynchronous result from the native MobileAccessibility.
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*/
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MobileAccessibility.prototype.isMonoAudioEnabled = function(callback) {
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exec(callback, null, "MobileAccessibility", "isMonoAudioEnabled", []);
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};
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/**
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* Asynchronous call to native MobileAccessibility to detemine if Guided Access is enabled.
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* @param {function} callback A callback method to recieve the asynchronous result from the native MobileAccessibility.
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*/
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MobileAccessibility.prototype.isGuidedAccessEnabled = function(callback) {
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exec(callback, null, "MobileAccessibility", "isGuidedAccessEnabled", []);
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};
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/**
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* Posts an announcement notification with a string for VoiceOver to announce, if it is running.
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* @param {string} string A string to be announced by VoiceOver.
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* @param {function} callback A callback method to recieve the asynchronous result from the native MobileAccessibility, when the announcement is finished, the function should expect an object containing the stringValue that was voiced and a boolean indicating that the announcement wasSuccessful.
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*/
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MobileAccessibility.prototype.postAnnouncementNotification = function(string, callback) {
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exec(callback, null, "MobileAccessibility", "postAnnouncementNotification", [string]);
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};
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/**
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* Callback from native MobileAccessibility returning an which describes the status of iOS accessibility features.
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*
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* @param {Object} info keys: isVoiceOverRunning, isClosedCaptioningEnabled
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* @param {Object} info
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* @config {Boolean} [isVoiceOverRunning] Boolean to indicate VoiceOver status.
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* @config {Boolean} [isClosedCaptioningEnabled] Boolean to indicate closed captioning status.
|
||||
* @config {Boolean} [isGuidedAccessEnabled] Boolean to indicate guided access status.
|
||||
* @config {Boolean} [isInvertColorsEnabled] Boolean to indicate invert colors status.
|
||||
* @config {Boolean} [isMonoAudioEnabled] Boolean to indicate mono audio status.
|
||||
*/
|
||||
MobileAccessibility.prototype._status = function(info) {
|
||||
if (info) {
|
||||
var me = mobileAccessibility;
|
||||
if (me._isVoiceOverRunning !== info.isVoiceOverRunning) {
|
||||
if (mobileAccessibility._isVoiceOverRunning !== info.isVoiceOverRunning) {
|
||||
cordova.fireWindowEvent("voiceoverstatuschanged", info);
|
||||
me._isVoiceOverRunning = info.isVoiceOverRunning;
|
||||
mobileAccessibility._isVoiceOverRunning = info.isVoiceOverRunning;
|
||||
}
|
||||
if (me._isClosedCaptioningEnabled !== info.isClosedCaptioningEnabled) {
|
||||
if (mobileAccessibility._isClosedCaptioningEnabled !== info.isClosedCaptioningEnabled) {
|
||||
cordova.fireWindowEvent("closedcaptioningstatusdidchange", info);
|
||||
me._isClosedCaptioningEnabled = info.isClosedCaptioningEnabled;
|
||||
mobileAccessibility._isClosedCaptioningEnabled = info.isClosedCaptioningEnabled;
|
||||
}
|
||||
if (mobileAccessibility._isGuidedAccessEnabled !== info.isGuidedAccessEnabled) {
|
||||
cordova.fireWindowEvent("guidedaccessstatusdidchange", info);
|
||||
mobileAccessibility._isGuidedAccessEnabled = info.isGuidedAccessEnabled;
|
||||
}
|
||||
if (mobileAccessibility._isInvertColorsEnabled !== info.isInvertColorsEnabled) {
|
||||
cordova.fireWindowEvent("invertcolorsstatusdidchange", info);
|
||||
mobileAccessibility._isInvertColorsEnabled = info.isInvertColorsEnabled;
|
||||
}
|
||||
if (mobileAccessibility._isMonoAudioEnabled !== info.isMonoAudioEnabled) {
|
||||
cordova.fireWindowEvent("monoaudiostatusdidchange", info);
|
||||
mobileAccessibility._isMonoAudioEnabled = info.isMonoAudioEnabled;
|
||||
}
|
||||
}
|
||||
};
|
||||
@@ -92,4 +166,4 @@ MobileAccessibility.prototype._error = function(e) {
|
||||
var mobileAccessibility = new MobileAccessibility();
|
||||
|
||||
module.exports = mobileAccessibility;
|
||||
start
|
||||
});
|
||||
|
||||
Reference in New Issue
Block a user