function takePictureFromCameraWindows()

in src/windows/CameraProxy.js [683:769]
57 lines of code
11 McCabe index (conditional complexity)

function takePictureFromCameraWindows (successCallback, errorCallback, args) {
    var destinationType = args[1];
    var targetWidth = args[3];
    var targetHeight = args[4];
    var encodingType = args[5];
    var allowCrop = !!args[7];
    var saveToPhotoAlbum = args[9];
    var WMCapture = Windows.Media.Capture;
    var cameraCaptureUI = new WMCapture.CameraCaptureUI();

    cameraCaptureUI.photoSettings.allowCropping = allowCrop;

    if (encodingType === Camera.EncodingType.PNG) {
        cameraCaptureUI.photoSettings.format = WMCapture.CameraCaptureUIPhotoFormat.png;
    } else {
        cameraCaptureUI.photoSettings.format = WMCapture.CameraCaptureUIPhotoFormat.jpeg;
    }

    // decide which max pixels should be supported by targetWidth or targetHeight.
    var maxRes = null;
    var UIMaxRes = WMCapture.CameraCaptureUIMaxPhotoResolution;
    var totalPixels = targetWidth * targetHeight;

    if (targetWidth === -1 && targetHeight === -1) {
        maxRes = UIMaxRes.highestAvailable;
        // Temp fix for CB-10539
    /* else if (totalPixels <= 320 * 240) {
        maxRes = UIMaxRes.verySmallQvga;
    } */
    } else if (totalPixels <= 640 * 480) {
        maxRes = UIMaxRes.smallVga;
    } else if (totalPixels <= 1024 * 768) {
        maxRes = UIMaxRes.mediumXga;
    } else if (totalPixels <= 3 * 1000 * 1000) {
        maxRes = UIMaxRes.large3M;
    } else if (totalPixels <= 5 * 1000 * 1000) {
        maxRes = UIMaxRes.veryLarge5M;
    } else {
        maxRes = UIMaxRes.highestAvailable;
    }

    cameraCaptureUI.photoSettings.maxResolution = maxRes;

    var cameraPicture;

    // define focus handler for windows phone 10.0
    var savePhotoOnFocus = function () {
        window.removeEventListener('focus', savePhotoOnFocus);
        // call only when the app is in focus again
        savePhoto(cameraPicture, {
            destinationType: destinationType,
            targetHeight: targetHeight,
            targetWidth: targetWidth,
            encodingType: encodingType,
            saveToPhotoAlbum: saveToPhotoAlbum
        }, successCallback, errorCallback);
    };

    // if windows phone 10, add and delete focus eventHandler to capture the focus back from cameraUI to app
    if (navigator.appVersion.indexOf('Windows Phone 10.0') >= 0) {
        window.addEventListener('focus', savePhotoOnFocus);
    }

    cameraCaptureUI.captureFileAsync(WMCapture.CameraCaptureUIMode.photo).done(function (picture) {
        if (!picture) {
            errorCallback("User didn't capture a photo.");
            // Remove the focus handler if present
            window.removeEventListener('focus', savePhotoOnFocus);
            return;
        }
        cameraPicture = picture;

        // If not windows 10, call savePhoto() now. If windows 10, wait for the app to be in focus again
        if (navigator.appVersion.indexOf('Windows Phone 10.0') < 0) {
            savePhoto(cameraPicture, {
                destinationType: destinationType,
                targetHeight: targetHeight,
                targetWidth: targetWidth,
                encodingType: encodingType,
                saveToPhotoAlbum: saveToPhotoAlbum
            }, successCallback, errorCallback);
        }
    }, function () {
        errorCallback('Fail to capture a photo.');
        window.removeEventListener('focus', savePhotoOnFocus);
    });
}