From 9edad17a15566e21c7fd287cad17f86acd15fbb4 Mon Sep 17 00:00:00 2001
From: Vladislav Alexeev <beefon@fb.com>
Date: Fri, 7 Aug 2015 02:32:00 -0700
Subject: [PATCH] Use Dynamic Text Size Multipliers from Wilde in ReactNative
 Module

---
 React/Modules/RCTAccessibilityManager.h |  3 +++
 React/Modules/RCTAccessibilityManager.m | 19 ++++++++++++++++---
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/React/Modules/RCTAccessibilityManager.h b/React/Modules/RCTAccessibilityManager.h
index 03d22f945..a901aa874 100644
--- a/React/Modules/RCTAccessibilityManager.h
+++ b/React/Modules/RCTAccessibilityManager.h
@@ -18,6 +18,9 @@ extern NSString *const RCTAccessibilityManagerDidUpdateMultiplierNotification; /
 
 @property (nonatomic, readonly) CGFloat multiplier;
 
+/// map from UIKit categories to multipliers
+@property (nonatomic, copy) NSDictionary *multipliers;
+
 @end
 
 @interface RCTBridge (RCTAccessibilityManager)
diff --git a/React/Modules/RCTAccessibilityManager.m b/React/Modules/RCTAccessibilityManager.m
index 9271b1e3d..7fc58786a 100644
--- a/React/Modules/RCTAccessibilityManager.m
+++ b/React/Modules/RCTAccessibilityManager.m
@@ -15,7 +15,6 @@ NSString *const RCTAccessibilityManagerDidUpdateMultiplierNotification = @"RCTAc
 
 @interface RCTAccessibilityManager ()
 
-@property (nonatomic, copy) NSDictionary *multipliers;
 @property (nonatomic, copy) NSString *contentSizeCategory;
 @property (nonatomic, assign) CGFloat multiplier;
 
@@ -24,6 +23,7 @@ NSString *const RCTAccessibilityManagerDidUpdateMultiplierNotification = @"RCTAc
 @implementation RCTAccessibilityManager
 
 @synthesize bridge = _bridge;
+@synthesize multipliers = _multipliers;
 
 RCT_EXPORT_MODULE()
 
@@ -80,11 +80,16 @@ RCT_EXPORT_MODULE()
 {
   if (_contentSizeCategory != contentSizeCategory) {
     _contentSizeCategory = [contentSizeCategory copy];
-    self.multiplier = [self multiplierForContentSizeCategory:_contentSizeCategory];
-    [[NSNotificationCenter defaultCenter] postNotificationName:RCTAccessibilityManagerDidUpdateMultiplierNotification object:self];
+    [self invalidateMultiplier];
   }
 }
 
+- (void)invalidateMultiplier
+{
+  self.multiplier = [self multiplierForContentSizeCategory:_contentSizeCategory];
+  [[NSNotificationCenter defaultCenter] postNotificationName:RCTAccessibilityManagerDidUpdateMultiplierNotification object:self];
+}
+
 - (CGFloat)multiplierForContentSizeCategory:(NSString *)category
 {
   NSNumber *m = self.multipliers[category];
@@ -95,6 +100,14 @@ RCT_EXPORT_MODULE()
   return m.doubleValue;
 }
 
+- (void)setMultipliers:(NSDictionary *)multipliers
+{
+  if (_multipliers != multipliers) {
+    _multipliers = [multipliers copy];
+    [self invalidateMultiplier];
+  }
+}
+
 - (NSDictionary *)multipliers
 {
   if (_multipliers == nil) {