first stab

src/lib.rs

@@ -0,0 +1,59 @@
+use controls::{
+    heading::HeadingData, select::SelectData, submit::SubmitData, text_area::TextAreaData,
+    text_input::TextInputData,
+};
+use leptos::*;
+use std::marker::PhantomData;
+
+mod controls;
+mod provider_impl;
+
+pub trait FormStyleProvider {
+    type StylingAttributes;
+
+    fn heading(&self, data: HeadingData, attributes: Vec<Self::StylingAttributes>) -> View;
+    fn text_input(&self, data: TextInputData, attributes: Vec<Self::StylingAttributes>) -> View;
+    fn select(&self, data: SelectData, attributes: Vec<Self::StylingAttributes>) -> View;
+    fn submit(&self, data: SubmitData, attributes: Vec<Self::StylingAttributes>) -> View;
+    fn text_area(&self, data: TextAreaData, attributes: Vec<Self::StylingAttributes>) -> View;
+    fn custom_component(&self, component: View) -> View;
+    // TODO: add group
+}
+
+pub trait ControlData<FS: FormStyleProvider>: 'static {
+    fn build_control(self, fs: &FS, attributes: Vec<FS::StylingAttributes>) -> View;
+}
+
+pub struct FormBuilder<FD: FormData, FS: FormStyleProvider> {
+    _fd: PhantomData<FD>,
+    fs: FS,
+    controls: Vec<(Box<dyn ControlData<FS>>, Vec<FS::StylingAttributes>)>,
+}
+
+pub trait FormData {}
+
+pub struct ControlBuilder<FD: FormData, FS: FormStyleProvider, C: ControlData<FS>> {
+    fb: FormBuilder<FD, FS>,
+    parse_fn: Option<Box<dyn Fn(&str, &mut FD)>>,
+    style_attributes: Vec<FS::StylingAttributes>,
+    data: C,
+}
+
+impl<FD: FormData, FS: FormStyleProvider, C: ControlData<FS>> ControlBuilder<FD, FS, C> {
+    pub fn parse_fn(mut self, parse_fn: Box<dyn Fn(&str, &mut FD)>) -> Self {
+        self.parse_fn = Some(parse_fn);
+        self
+    }
+
+    pub fn style(mut self, attribute: FS::StylingAttributes) -> Self {
+        self.style_attributes.push(attribute);
+        self
+    }
+
+    pub fn end(mut self) -> FormBuilder<FD, FS> {
+        self.fb
+            .controls
+            .push((Box::new(self.data), self.style_attributes));
+        self.fb
+    }
+}