initial camera for iOS code, spike quality

BCL.csproj

@@ -218,6 +218,9 @@
     <TypeScriptCompile Include="libjs.d.ts" />
   </ItemGroup>
   <ItemGroup>
+    <TypeScriptCompile Include="camera\camera-types.ts">
+      <DependentUpon>camera.d.ts</DependentUpon>
+    </TypeScriptCompile>
     <Content Include="_references.ts" />
     <Content Include="image-source\Readme.md" />
     <Content Include="http\Readme.md" />

Tests/image-source-tests.ts

@@ -13,15 +13,14 @@
 // </snippet>
 
 import imageSource = require("image-source/image-source");
-import app = require("application/application"); 
 import fs = require("file-system/file-system"); 
+import app = require("application/application"); 
 import TKUnit = require("Tests/TKUnit"); 
 
-
 export var testFromResource = function () {
     // <snippet name="image-source">
     // ### Load image using resource name
-    // this similar to loading Bitmap from `R.drawable.logo` on Android or calling `[UIImage imageNamed@"logo"]` on iOS
+    // This is similar to loading Bitmap from `R.drawable.logo` on Android or calling `[UIImage imageNamed@"logo"]` on iOS
     // ``` JavaScript
     var img = imageSource.fromResource("logo");
     // ```

camera/camera-types.ts

@@ -0,0 +1,23 @@
+
+export enum CameraPosition {
+    FRONT = 0,
+    BACK = 1,
+}
+
+export enum FlashMode {
+    AUTO = 0,  // default
+    ON = 1,
+    OFF = 2
+}
+
+export interface Options {
+    /**
+    * Specifies which Camera to use
+    */
+    cameraPosition?: CameraPosition;
+
+    /**
+    * Specifies flash mode
+    */
+    flashMode?: FlashMode;
+}

camera/camera.d.ts

@@ -1,4 +1,8 @@
-export declare enum CameraPosition {
+
+import promises = require("promises/promises");
+import imageSource = require("image-source/image-source");
+
+export declare enum CameraPosition {
     FRONT = 0,
     BACK = 1,
 }
@@ -9,10 +13,24 @@ export declare enum FlashMode {
     OFF = 2
 }
 
+export interface Options {
+    /**
+    * Specifies which Camera to use
+    */
+    cameraPosition?: CameraPosition;
+
+    /**
+    * Specifies flash mode
+    */
+    flashMode?: FlashMode;
+}
+
 // TODO most of hardware related parts need to handle onPause and onResume of the calling activities
 export declare class CameraManager {
     takePicture(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any);
 
     // options { useSavedPhotos: true }
     pictureFromLibrary(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any);
-}
+}
+
+export declare var takePicture: (options?: Options) => promises.Promise<imageSource.ImageSource>;

camera/camera.ios.ts

@@ -1,5 +1,9 @@
-var REQUEST_IMAGE_CAPTURE: number = 1;
-var REQUEST_SELECT_PICTURE: number = 2;
+
+import promises = require("promises/promises");
+import imageSource = require("image-source/image-source");
+import types = require("camera/camera-types");
+
+var imagePickerController;
 
 export class CameraManager {
     public takePicture(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any) {
@@ -8,4 +12,68 @@ export class CameraManager {
     // options { useSavedPhotos: true }
     public pictureFromLibrary(params: any, onSuccess: (imageData: any) => any, onError?: (error: any) => any) {
     }
-}
+}
+
+function topViewController():UIKit.UIViewController {
+    return topViewControllerWithRootViewController(UIKit.UIApplication.sharedApplication().keyWindow.rootViewController);
+}
+
+function topViewControllerWithRootViewController(rootViewController: any) {
+    if (rootViewController.isKindOfClass(UIKit.UITabBarController.class())) {
+//        console.log("Using tab view controller");
+        return topViewControllerWithRootViewController(<UIKit.UITabBarController>rootViewController.selectedViewController);
+    } else if (rootViewController.isKindOfClass(UIKit.UINavigationController.class())) {
+//        console.log("Using navigation view controller");
+        return topViewControllerWithRootViewController(<UIKit.UINavigationController>rootViewController.visibleViewController);
+    } else if (rootViewController.presentedViewController) {
+//        console.log("Using presented view controller");
+        return topViewControllerWithRootViewController(rootViewController.presentedViewController);
+    } else {
+//        console.log("Using view controller");
+        return rootViewController;
+    }
+}
+
+export var takePicture = function (options?: types.Options): promises.Promise<imageSource.ImageSource> {
+    var d = promises.defer<imageSource.ImageSource>();
+
+    // FIXME: this is done to prevent listener from being freed by JS garbage collector
+    // we will try to fix this at JS Bridge level
+    var listener;
+
+    var ImagePickerControllerListener = Foundation.NSObject.extends({
+    }, {}).implements({
+
+            protocol: "UIImagePickerControllerDelegate",
+
+            implementation: {
+                imagePickerControllerDidFinishPickingMediaWithInfo: function (picker, info) {
+                    console.log('takeImage received');
+                    picker.presentingViewController.dismissViewControllerAnimatedCompletion(true, null);
+                    // FIXME: do not work with listener here
+                    listener = null;
+                    var image = imageSource.fromNativeSource(info.valueForKey(UIKit.UIImagePickerControllerOriginalImage));
+                    d.resolve(image);
+                },
+
+                imagePickerControllerDidCancel: function (picker) {
+                    console.info('takeImage canceled');
+                    picker.presentingViewController.dismissViewControllerAnimatedCompletion(true, null);
+                    // FIXME: do not work with listener here
+                    listener = null;
+                    d.reject(new Error('takePicture canceled by user'));
+                }
+            }
+    });
+
+    imagePickerController = new UIKit.UIImagePickerController();
+    listener = new ImagePickerControllerListener();
+    imagePickerController.delegate = listener;
+    imagePickerController.mediaTypes = UIKit.UIImagePickerController.availableMediaTypesForSourceType(UIKit.UIImagePickerControllerSourceType.UIImagePickerControllerSourceTypeCamera);
+    imagePickerController.sourceType = UIKit.UIImagePickerControllerSourceType.UIImagePickerControllerSourceTypeCamera;
+    imagePickerController.modalPresentationStyle = UIKit.UIModalPresentationStyle.UIModalPresentationCurrentContext;
+
+    topViewController().presentViewControllerAnimatedCompletion(imagePickerController, true, null);
+
+    return d.promise();
+}