Add keyboard-observing notifications

React/Base/RCTKeyboardObserver.h

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "RCTBridgeModule.h"
+
+@interface RCTKeyboardObserver : NSObject <RCTBridgeModule>
+
+@end

React/Base/RCTKeyboardObserver.m

@@ -0,0 +1,87 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#import "RCTKeyboardObserver.h"
+
+#import "RCTEventDispatcher.h"
+
+static NSDictionary *RCTParseKeyboardNotification(NSNotification *notification);
+
+@implementation RCTKeyboardObserver
+
+@synthesize bridge = _bridge;
+
+RCT_EXPORT_MODULE()
+
+- (instancetype)init
+{
+  if ((self = [super init])) {
+    NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
+
+#define ADD_KEYBOARD_HANDLER(NAME, SELECTOR) \
+    [nc addObserver:self selector:@selector(SELECTOR:) name:NAME object:nil]
+
+    ADD_KEYBOARD_HANDLER(UIKeyboardWillShowNotification, keyboardWillShow);
+    ADD_KEYBOARD_HANDLER(UIKeyboardDidShowNotification, keyboardDidShow);
+    ADD_KEYBOARD_HANDLER(UIKeyboardWillHideNotification, keyboardWillHide);
+    ADD_KEYBOARD_HANDLER(UIKeyboardDidHideNotification, keyboardDidHide);
+    ADD_KEYBOARD_HANDLER(UIKeyboardWillChangeFrameNotification, keyboardWillChangeFrame);
+    ADD_KEYBOARD_HANDLER(UIKeyboardDidChangeFrameNotification, keyboardDidChangeFrame);
+
+#undef ADD_KEYBOARD_HANDLER
+  }
+
+  return self;
+}
+
+- (void)dealloc
+{
+  [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+#define IMPLEMENT_KEYBOARD_HANDLER(EVENT) \
+- (void)EVENT:(NSNotification *)notification \
+{ \
+  [_bridge.eventDispatcher \
+    sendDeviceEventWithName:@#EVENT \
+    body:RCTParseKeyboardNotification(notification)]; \
+}
+
+IMPLEMENT_KEYBOARD_HANDLER(keyboardWillShow)
+IMPLEMENT_KEYBOARD_HANDLER(keyboardDidShow)
+IMPLEMENT_KEYBOARD_HANDLER(keyboardWillHide)
+IMPLEMENT_KEYBOARD_HANDLER(keyboardDidHide)
+IMPLEMENT_KEYBOARD_HANDLER(keyboardWillChangeFrame)
+IMPLEMENT_KEYBOARD_HANDLER(keyboardDidChangeFrame)
+
+@end
+
+static NSDictionary *RCTRectDictionaryValue(CGRect rect)
+{
+  return @{
+    @"screenX": @(rect.origin.x),
+    @"screenY": @(rect.origin.y),
+    @"width": @(rect.size.width),
+    @"height": @(rect.size.height),
+  };
+}
+
+static NSDictionary *RCTParseKeyboardNotification(NSNotification *notification)
+{
+  NSDictionary *userInfo = notification.userInfo;
+  CGRect beginFrame = [userInfo[UIKeyboardFrameBeginUserInfoKey] CGRectValue];
+  CGRect endFrame = [userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
+  NSTimeInterval duration = [userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
+
+  return @{
+    @"startCoordinates": RCTRectDictionaryValue(beginFrame),
+    @"endCoordinates": RCTRectDictionaryValue(endFrame),
+    @"duration": @(duration * 1000.0), // ms
+  };
+}

React/React.xcodeproj/project.pbxproj

@@ -71,6 +71,7 @@
 		830A229E1A66C68A008503DA /* RCTRootView.m in Sources */ = {isa = PBXBuildFile; fileRef = 830A229D1A66C68A008503DA /* RCTRootView.m */; };
 		832348161A77A5AA00B55238 /* Layout.c in Sources */ = {isa = PBXBuildFile; fileRef = 13B07FC71A68125100A75B9A /* Layout.c */; };
 		83392EB31B6634E10013B15F /* RCTModalHostViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 83392EB21B6634E10013B15F /* RCTModalHostViewController.m */; };
+		8385CF351B8B77CD00C6273E /* RCTKeyboardObserver.m in Sources */ = {isa = PBXBuildFile; fileRef = 8385CF341B8B77CD00C6273E /* RCTKeyboardObserver.m */; };
 		83A1FE8C1B62640A00BE0E65 /* RCTModalHostView.m in Sources */ = {isa = PBXBuildFile; fileRef = 83A1FE8B1B62640A00BE0E65 /* RCTModalHostView.m */; };
 		83A1FE8F1B62643A00BE0E65 /* RCTModalHostViewManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 83A1FE8E1B62643A00BE0E65 /* RCTModalHostViewManager.m */; };
 		83CBBA511A601E3B00E9B192 /* RCTAssert.m in Sources */ = {isa = PBXBuildFile; fileRef = 83CBBA4B1A601E3B00E9B192 /* RCTAssert.m */; };
@@ -233,6 +234,8 @@
 		830A229D1A66C68A008503DA /* RCTRootView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTRootView.m; sourceTree = "<group>"; };
 		83392EB11B6634E10013B15F /* RCTModalHostViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTModalHostViewController.h; sourceTree = "<group>"; };
 		83392EB21B6634E10013B15F /* RCTModalHostViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTModalHostViewController.m; sourceTree = "<group>"; };
+		8385CF331B8B77CD00C6273E /* RCTKeyboardObserver.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTKeyboardObserver.h; sourceTree = "<group>"; };
+		8385CF341B8B77CD00C6273E /* RCTKeyboardObserver.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTKeyboardObserver.m; sourceTree = "<group>"; };
 		83A1FE8A1B62640A00BE0E65 /* RCTModalHostView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTModalHostView.h; sourceTree = "<group>"; };
 		83A1FE8B1B62640A00BE0E65 /* RCTModalHostView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTModalHostView.m; sourceTree = "<group>"; };
 		83A1FE8D1B62643A00BE0E65 /* RCTModalHostViewManager.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTModalHostViewManager.h; sourceTree = "<group>"; };
@@ -448,14 +451,15 @@
 		83CBBA491A601E3B00E9B192 /* Base */ = {
 			isa = PBXGroup;
 			children = (
-				138D6A121B53CD290074A87E /* RCTCache.h */,
-				138D6A131B53CD290074A87E /* RCTCache.m */,
 				83CBBA4A1A601E3B00E9B192 /* RCTAssert.h */,
 				83CBBA4B1A601E3B00E9B192 /* RCTAssert.m */,
 				14C2CA771B3ACB0400E6CBB2 /* RCTBatchedBridge.m */,
 				83CBBA5E1A601EAA00E9B192 /* RCTBridge.h */,
 				83CBBA5F1A601EAA00E9B192 /* RCTBridge.m */,
+				1482F9E61B55B927000ADFF3 /* RCTBridgeDelegate.h */,
 				830213F31A654E0800B993E6 /* RCTBridgeModule.h */,
+				138D6A121B53CD290074A87E /* RCTCache.h */,
+				138D6A131B53CD290074A87E /* RCTCache.m */,
 				83CBBACA1A6023D300E9B192 /* RCTConvert.h */,
 				83CBBACB1A6023D300E9B192 /* RCTConvert.m */,
 				13AF1F851AE6E777005F5298 /* RCTDefines.h */,
@@ -469,6 +473,8 @@
 				83CBBA631A601ECA00E9B192 /* RCTJavaScriptExecutor.h */,
 				14200DA81AC179B3008EE6BA /* RCTJavaScriptLoader.h */,
 				14200DA91AC179B3008EE6BA /* RCTJavaScriptLoader.m */,
+				8385CF331B8B77CD00C6273E /* RCTKeyboardObserver.h */,
+				8385CF341B8B77CD00C6273E /* RCTKeyboardObserver.m */,
 				13A1F71C1A75392D00D3D453 /* RCTKeyCommands.h */,
 				13A1F71D1A75392D00D3D453 /* RCTKeyCommands.m */,
 				83CBBA4D1A601E3B00E9B192 /* RCTLog.h */,
@@ -495,7 +501,6 @@
 				1345A83B1B265A0E00583190 /* RCTURLRequestHandler.h */,
 				83CBBA4F1A601E3B00E9B192 /* RCTUtils.h */,
 				83CBBA501A601E3B00E9B192 /* RCTUtils.m */,
-				1482F9E61B55B927000ADFF3 /* RCTBridgeDelegate.h */,
 			);
 			path = Base;
 			sourceTree = "<group>";
@@ -603,6 +608,7 @@
 				13CC8A821B17642100940AE7 /* RCTBorderDrawing.m in Sources */,
 				83CBBA511A601E3B00E9B192 /* RCTAssert.m in Sources */,
 				13AF20451AE707F9005F5298 /* RCTSlider.m in Sources */,
+				8385CF351B8B77CD00C6273E /* RCTKeyboardObserver.m in Sources */,
 				58114A501AAE93D500E7D092 /* RCTAsyncLocalStorage.m in Sources */,
 				832348161A77A5AA00B55238 /* Layout.c in Sources */,
 				14F4D38B1AE1B7E40049C042 /* RCTProfile.m in Sources */,