Add form component

src/components/form.rs

@@ -0,0 +1,101 @@
+use dioxus::prelude::*;
+use serde::de::DeserializeOwned;
+
+use crate::util::error::Error;
+
+/// A simple styled form card. Parses form fields into the provided generic type, and calls the
+/// callback when submitted via button or enter key.
+#[component]
+pub fn Form<T>(
+    /// Heading above the form
+    title: String,
+    /// Form content, placed inside a `fieldset`
+    children: Element,
+    /// Text displayed on the form button
+    action_message: String,
+    /// Form-related error. Set to a parsing error on parse failure, or can be used to display any
+    /// submission error. Clears on each submit. Displays as a card between the inputs and action
+    /// button, opens a modal on click.
+    #[props(default)]
+    error: Signal<Option<Error>>,
+    /// Whether the form should display in a "loading" state, disables the action button and
+    /// displays a loading animation instead. For best UX, especially on pages the user might open
+    /// directly as opposed to navigate to within the app, initialize to true. This component will
+    /// set it to false when run. This sequence will discourage users from submitting the form
+    /// before the page is ready to handle it. Can also be used to indicate background work is
+    /// taking place in the `callback`, but this is not done automatically.
+    #[props(default)]
+    loading: Signal<bool>,
+    /// Content to display below the action button
+    #[props(default)]
+    extra_content: Option<Element>,
+    /// Form submission callback. Called with the deserialized form inputs.
+    onsubmit: Callback<T>,
+) -> Element
+where
+    T: DeserializeOwned + 'static,
+{
+    // Button is initialized to loading, then set back when WASM is finished loading (use_effect
+    // runs only on the client)
+    use_effect(move || loading.set(false));
+
+    rsx! {
+        div {
+            class: "card card-xl w-full sm:w-100 sm:h-fit bg-base-200",
+
+            form {
+                onsubmit: move |evt| {
+                    evt.prevent_default();
+
+                    let data: T = match evt.data.parsed_values() {
+                        Ok(data) => data,
+                        Err(e) => {
+                            let e = Error::message_here(e.to_string())
+                                .with_context("Failed to parse form inputs");
+
+                            error.set(Some(e));
+                            return;
+                        }
+                    };
+
+                    error.set(None);
+
+                    onsubmit.call(data);
+                },
+
+                class: "card-body gap-3",
+
+                h1 {
+                    class: "card-title",
+                    {title}
+                }
+
+                fieldset {
+                    class: "fieldset pt-0 gap-1",
+                    {children}
+                }
+
+                {error().map(|e| e.as_alert())}
+
+                div {
+                    class: "card-actions gap-4",
+
+                    button {
+                        class: "btn btn-primary btn-block",
+                        disabled: loading(),
+
+                        if loading() {
+                            span {
+                                class: "loading loading-dots"
+                            }
+                        } else {
+                            {action_message}
+                        }
+                    }
+
+                    {extra_content}
+                }
+            }
+        }
+    }
+}

src/components/mod.rs

@@ -1,2 +1,3 @@
 pub mod footer;
+pub mod form;
 pub mod form_input;