Examples with RCTEventEmitter com.facebook.react.uimanager.events.RCTEventEmitter used on opensource projects

Example 1 with RCTEventEmitter

use of com.facebook.react.uimanager.events.RCTEventEmitter in project gl-react-native by ProjectSeptemberInc.

the class GLCanvas method capture.

private void capture() {
    Bitmap capture = createSnapshot();
    ReactContext reactContext = (ReactContext) getContext();
    RCTEventEmitter eventEmitter = reactContext.getJSModule(RCTEventEmitter.class);
    for (CaptureConfig config : captureConfigs) {
        String result = null, error = null;
        boolean isPng = config.type.equals("png");
        boolean isJpeg = !isPng && (config.type.equals("jpg") || config.type.equals("jpeg"));
        boolean isWebm = !isPng && !isJpeg && config.type.equals("webm");
        boolean isBase64 = config.format.equals("base64");
        boolean isFile = !isBase64 && config.format.equals("file");
        Bitmap.CompressFormat compressFormat = isPng ? Bitmap.CompressFormat.PNG : isJpeg ? Bitmap.CompressFormat.JPEG : isWebm ? Bitmap.CompressFormat.WEBP : null;
        int quality = (int) (100 * config.quality);
        if (compressFormat == null) {
            error = "Unsupported capture type '" + config.type + "'";
        } else if (isBase64) {
            try {
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                capture.compress(compressFormat, quality, baos);
                String frame = "data:image/png;base64," + Base64.encodeToString(baos.toByteArray(), Base64.DEFAULT);
                baos.close();
                result = frame;
            } catch (Exception e) {
                e.printStackTrace();
                error = "Could not capture as base64: " + e.getMessage();
            }
        } else if (isFile) {
            try {
                FileOutputStream fileOutputStream = new FileOutputStream(config.filePath);
                capture.compress(compressFormat, quality, fileOutputStream);
                fileOutputStream.close();
                result = "file://" + config.filePath;
            } catch (Exception e) {
                e.printStackTrace();
                error = "Could not write file: " + e.getMessage();
            }
        } else {
            error = "Unsupported capture format '" + config.format + "'";
        }
        WritableMap response = Arguments.createMap();
        response.putMap("config", config.toMap());
        if (error != null)
            response.putString("error", error);
        if (result != null)
            response.putString("result", result);
        eventEmitter.receiveEvent(getId(), "captureFrame", response);
    }
    captureConfigs = new ArrayList<>();
}