From 6d3af3817813c1875b95e4471aeb292705ea4da6 Mon Sep 17 00:00:00 2001
From: Andreas Keller <a.keller@e-guma.ch>
Date: Mon, 15 Jun 2015 20:58:36 +0200
Subject: [PATCH] Adds torchMode property

---
 Camera.ios.js      | 13 +++++++++++--
 RCTCamera.m        |  5 +++++
 RCTCameraManager.h |  7 +++++++
 RCTCameraManager.m | 23 +++++++++++++++++++++++
 README.md          |  9 +++++++++
 5 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/Camera.ios.js b/Camera.ios.js
index 5ab85fe..243f0bd 100644
--- a/Camera.ios.js
+++ b/Camera.ios.js
@@ -16,7 +16,8 @@ var constants = {
   CaptureMode: NativeModules.CameraManager.CaptureMode,
   CaptureTarget: NativeModules.CameraManager.CaptureTarget,
   Orientation: NativeModules.CameraManager.Orientation,
-  FlashMode: NativeModules.CameraManager.FlashMode
+  FlashMode: NativeModules.CameraManager.FlashMode,
+  TorchMode: NativeModules.CameraManager.TorchMode,
 };
 
 var Camera = React.createClass({
@@ -44,6 +45,10 @@ var Camera = React.createClass({
     flashMode: PropTypes.oneOfType([
       PropTypes.string,
       PropTypes.number
+    ]),
+    torchMode: PropTypes.oneOfType([
+      PropTypes.string,
+      PropTypes.number
     ])
   },
 
@@ -62,6 +67,7 @@ var Camera = React.createClass({
       captureMode: constants.CaptureMode.still,
       captureTarget: constants.CaptureTarget.memory,
       flashMode: constants.FlashMode.off,
+      torchMode: constants.TorchMode.off
     };
   },
 
@@ -89,7 +95,8 @@ var Camera = React.createClass({
     var aspect = this.props.aspect,
         type = this.props.type,
         orientation = this.props.orientation,
-        flashMode = this.props.flashMode;
+        flashMode = this.props.flashMode,
+        torchMode = this.props.torchMode;
 
     var legacyProps = {
       aspect: {
@@ -152,6 +159,7 @@ var Camera = React.createClass({
       type: type,
       orientation: orientation,
       flashMode: flashMode,
+      torchMode: torchMode
     });
 
     return <RCTCamera {... nativeProps} />
@@ -192,6 +200,7 @@ var RCTCamera = createReactNativeComponentClass({
     type: true,
     orientation: true,
     flashMode: true,
+    torchMode: true
   }),
   uiViewClassName: 'RCTCamera',
 });
diff --git a/RCTCamera.m b/RCTCamera.m
index fb63b21..7be3c8b 100644
--- a/RCTCamera.m
+++ b/RCTCamera.m
@@ -53,6 +53,11 @@
     [self.manager changeFlashMode:flashMode];
 }
 
+- (void)setTorchMode:(NSInteger)torchMode
+{
+    [self.manager changeTorchMode:torchMode];
+}
+
 - (id)initWithManager:(RCTCameraManager*)manager
 {
 
diff --git a/RCTCameraManager.h b/RCTCameraManager.h
index a8e4d6f..8474edc 100644
--- a/RCTCameraManager.h
+++ b/RCTCameraManager.h
@@ -39,6 +39,12 @@ typedef NS_ENUM(NSInteger, RCTCameraFlashMode) {
     RCTCameraFlashModeAuto = AVCaptureFlashModeAuto
 };
 
+typedef NS_ENUM(NSInteger, RCTCameraTorchMode) {
+    RCTCameraTorchModeOff = AVCaptureTorchModeOff,
+    RCTCameraTorchModeOn = AVCaptureTorchModeOn,
+    RCTCameraTorchModeAuto = AVCaptureTorchModeAuto
+};
+
 @interface RCTCameraManager : RCTViewManager<AVCaptureMetadataOutputObjectsDelegate>
 
 @property (nonatomic) dispatch_queue_t sessionQueue;
@@ -54,6 +60,7 @@ typedef NS_ENUM(NSInteger, RCTCameraFlashMode) {
 - (void)changeCamera:(NSInteger)camera;
 - (void)changeOrientation:(NSInteger)orientation;
 - (void)changeFlashMode:(NSInteger)flashMode;
+- (void)changeTorchMode:(NSInteger)torchMode;
 - (AVCaptureDevice *)deviceWithMediaType:(NSString *)mediaType preferringPosition:(AVCaptureDevicePosition)position;
 - (void)capture:(NSDictionary*)options callback:(RCTResponseSenderBlock)callback;
 
diff --git a/RCTCameraManager.m b/RCTCameraManager.m
index 3a17940..b7d0c52 100644
--- a/RCTCameraManager.m
+++ b/RCTCameraManager.m
@@ -22,6 +22,7 @@ RCT_EXPORT_VIEW_PROPERTY(aspect, NSInteger);
 RCT_EXPORT_VIEW_PROPERTY(type, NSInteger);
 RCT_EXPORT_VIEW_PROPERTY(orientation, NSInteger);
 RCT_EXPORT_VIEW_PROPERTY(flashMode, NSInteger);
+RCT_EXPORT_VIEW_PROPERTY(torchMode, NSInteger);
 
 - (NSDictionary *)constantsToExport
 {
@@ -55,6 +56,11 @@ RCT_EXPORT_VIEW_PROPERTY(flashMode, NSInteger);
         @"off": @(RCTCameraFlashModeOff),
         @"on": @(RCTCameraFlashModeOn),
         @"auto": @(RCTCameraFlashModeAuto)
+      },
+      @"TorchMode": @{
+        @"off": @(RCTCameraTorchModeOff),
+        @"on": @(RCTCameraTorchModeOn),
+        @"auto": @(RCTCameraTorchModeAuto)
       }
     };
 }
@@ -185,6 +191,23 @@ RCT_EXPORT_METHOD(changeOrientation:(NSInteger)orientation) {
     self.previewLayer.connection.videoOrientation = orientation;
 }
 
+RCT_EXPORT_METHOD(changeTorchMode:(NSInteger)torchMode) {
+    AVCaptureDevice *device = [self.captureDeviceInput device];
+    NSError *error = nil;
+    
+    if ([device hasTorch]) {
+        if ([device lockForConfiguration:&error])
+        {
+            [device setTorchMode: torchMode];
+            [device unlockForConfiguration];
+        }
+        else
+        {
+            NSLog(@"%@", error);
+        }
+    }
+}
+
 RCT_EXPORT_METHOD(capture:(NSDictionary *)options callback:(RCTResponseSenderBlock)callback) {
     NSInteger captureMode = [[options valueForKey:@"mode"] intValue];
     NSInteger captureTarget = [[options valueForKey:@"target"] intValue];
diff --git a/README.md b/README.md
index 837a34d..5b9c09e 100644
--- a/README.md
+++ b/README.md
@@ -158,6 +158,15 @@ Values:
 
 Use the `flashMode` property to specify the camera flash mode.
 
+#### `torchMode`
+
+Values:
+`Camera.constants.TorchMode.on`,
+`Camera.constants.TorchMode.off`,
+`Camera.constants.TorchMode.auto`
+
+Use the `torchMode` property to specify the camera torch mode.
+
 ## Component methods
 
 You can access component methods by adding a `ref` (ie. `ref="camera"`) prop to your `<Camera>` element, then you can use `this.refs.camera.capture(cb)`, etc. inside your component.