build method

@override Widget build(BuildContext context, QuillController controller, Embed node, bool readOnly, bool inline,)

Implementation

@override
Widget build(
  BuildContext context,
  QuillController controller,
  Embed node,
  bool readOnly,
  bool inline,
) {
  assert(!kIsWeb, 'Please provide image EmbedBuilder for Web');
  Widget image = const SizedBox();
  final imageUrl = standardizeImageUrl(node.value.data);
  OptionalSize? _imageSize;
  final style = node.style.attributes['style'];
  if (style != null) {
    final _attrs = parseKeyValuePairs(style.value.toString(),
        {Attribute.mobileWidth, Attribute.mobileHeight, Attribute.mobileMargin, Attribute.mobileAlignment});
    if (_attrs.isNotEmpty) {
      assert(_attrs[Attribute.mobileWidth] != null && _attrs[Attribute.mobileHeight] != null,
          'mobileWidth and mobileHeight must be specified');
      final w = double.parse(_attrs[Attribute.mobileWidth]!);
      final h = double.parse(_attrs[Attribute.mobileHeight]!);
      _imageSize = OptionalSize(w, h);
      final m = _attrs[Attribute.mobileMargin] == null ? 0.0 : double.parse(_attrs[Attribute.mobileMargin]!);
      final a = getAlignment(_attrs[Attribute.mobileAlignment]);
      image = Padding(padding: EdgeInsets.all(m), child: imageByUrl(imageUrl, width: w, height: h, alignment: a));
    }
  }
  if (_imageSize == null) {
    image = imageByUrl(imageUrl);
    _imageSize = OptionalSize((image as Image).width, image.height);
  }
  if (!readOnly) {
    double width = _imageSize.width ?? 0;
    double height = _imageSize.height ?? 0;
    double maxWidth = MediaUtils.instance.screenWidth;
    double maxHeight = (width == 0 || height == 0) ? 0 : (maxWidth * height / width);
    if (maxHeight == 0) {
      maxHeight = MediaUtils.instance.screenHeight;
    }
    if (width == 0) {
      width = maxWidth;
    }
    if (height == 0) {
      height = width * maxHeight / maxWidth;
    }
    return GestureDetector(
      onTap: () => ImageSettingDialogs.instance.show(
          context: context,
          width: width,
          height: height,
          maxWidth: maxWidth,
          maxHeight: maxHeight,
          controller: controller,
          removeImageCall: removeImageCall),
      child: image,
    );
  }
  return image;
}