Close #28: leverage html-react-parser to properly handle HTML() insid…

…e of JSXTag

htmltools/_jsx.py

@@ -25,6 +25,7 @@
     HTMLDependency,
 )
 from ._versions import versions
+from . import tags
 
 __all__ = (
     "jsx",
@@ -123,6 +124,8 @@ def tagify(self) -> Tag:
         # metadata nodes. This could be done in two separate passes, but it's more
         # efficient to do it in one pass.
         def tagify_tagifiable_and_get_metadata(x: Any) -> Any:
+            if isinstance(x, HTML):
+                x = html_string_component(html_as_string(x))
             if isinstance(x, Tagifiable) and not isinstance(x, (Tag, JSXTag)):
                 x = x.tagify()
             else:
@@ -371,6 +374,25 @@ def __add__(self, other: Union[str, "jsx"]) -> str:
         return jsx(res) if isinstance(other, jsx) else res
 
 
+# JSX component that simply renders a raw HTML() string as DOM.
+def html_string_component(x: str) -> JSXTag:
+    component = jsx_tag_create("ReactHtmlStringComponent")
+    component_dependency = _lib_dependency(
+        "html-react-parser",
+        script={"src": "html-react-parser.min.js"},
+        head=tags.script(
+            "window.ReactHtmlStringComponent = function(props) { return HTMLReactParser(props.children); };"
+        ),
+    )
+    return component(x, component_dependency)
+
+
+# TODO: this isn't an ideal way to remove HTML class of a string
+# https://github.com/rstudio/py-htmltools/issues/15
+def html_as_string(x: Union[HTML, str]) -> str:
+    return x + ""
+
+
 def _lib_dependency(
     pkg: str, script: Dict[str, str], **kwargs: object
 ) -> HTMLDependency:

htmltools/_versions.py

@@ -1 +1 @@
-versions = {"react": "17.0.2", "react-dom": "17.0.2"}
+versions = {"react":"18.0.0","react-dom":"18.0.0","html-react-parser":"1.4.10"}