Add validation styling

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bootstrap-rs"
-version = "0.2.3"
+version = "0.2.4"
 authors = ["Thomas Gideon <cmdln@thecommandline.net>"]
 edition = "2018"
 

src/input/mod.rs

@@ -55,6 +55,8 @@ pub struct Props {
     pub class: String,
     #[prop_or_default]
     pub style: String,
+    #[prop_or_default]
+    pub valid: Option<bool>,
 }
 
 impl Component for Input {
@@ -84,11 +86,15 @@ impl Component for Input {
     }
 
     fn view(&self) -> Html {
-        let class = if self.props.readonly {
-            calculate_classes("form-control-plaintext", (&self.props).into())
+        let prefix = if self.props.readonly {
+            format!(
+                "form-control-plaintext{}",
+                valid_as_class(&self.props.valid)
+            )
         } else {
-            calculate_classes("form-control", (&self.props).into())
+            format!("form-control{}", valid_as_class(&self.props.valid))
         };
+        let class = calculate_classes(prefix, (&self.props).into());
         html! {
             <input
                 name=&self.props.name

src/input/textarea.rs

@@ -35,6 +35,8 @@ pub struct Props {
     pub style: String,
     #[prop_or_default]
     pub value: String,
+    #[prop_or_default]
+    pub valid: Option<bool>,
 }
 
 impl Component for TextArea {
@@ -65,11 +67,12 @@ impl Component for TextArea {
     }
 
     fn view(&self) -> Html {
+        let prefix = format!("form-control{}", valid_as_class(&self.props.valid));
         html! {
             <textarea
                 name=&self.props.name
                 id=&self.props.id
-                class=calculate_classes("form-control", (&self.props).into())
+                class=calculate_classes(prefix, (&self.props).into())
                 onchange=self.link.callback(|evt| InputChange(evt))
             >
                 { &self.state }

src/prelude/mod.rs

@@ -124,6 +124,14 @@ pub fn render_on_change<P: Properties + PartialEq>(
     }
 }
 
+pub fn valid_as_class(v: &Option<bool>) -> &'static str {
+    match v {
+        None => "",
+        Some(true) => " is-valid",
+        Some(false) => " is-invalid",
+    }
+}
+
 pub fn collect_bs<'a, T>(t: &'a Option<T>, ts: &'a [T]) -> Vec<&'a T> {
     if let Some(t) = t.as_ref() {
         let mut r = vec![t];