Add a custom number field component

web/src/components/mod.rs

@@ -15,6 +15,7 @@ pub mod add_recipe;
 pub mod categories;
 pub mod footer;
 pub mod header;
+pub mod number_field;
 pub mod recipe;
 pub mod recipe_list;
 pub mod recipe_plan;
@@ -27,6 +28,7 @@ pub use add_recipe::*;
 pub use categories::*;
 pub use footer::*;
 pub use header::*;
+pub use number_field::*;
 pub use recipe::*;
 pub use recipe_list::*;
 pub use recipe_plan::*;

web/src/components/number_field.rs

@@ -0,0 +1,74 @@
+// Copyright 2023 Jeremy Wall (Jeremy@marzhilsltudios.com)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+use sycamore::prelude::*;
+use tracing::debug;
+use web_sys::{Event, HtmlInputElement};
+
+use crate::js_lib;
+
+#[derive(Props)]
+pub struct NumberProps<'ctx, F>
+where
+    F: Fn(Event),
+{
+    name: String,
+    on_change: Option<F>,
+    min: i32,
+    counter: &'ctx Signal<String>,
+}
+
+#[component]
+pub fn NumberField<'ctx, F, G: Html>(cx: Scope<'ctx>, props: NumberProps<'ctx, F>) -> View<G>
+where
+    F: Fn(web_sys::Event) + 'ctx,
+{
+    let NumberProps {
+        name,
+        on_change,
+        min,
+        counter,
+    } = props;
+
+    let id = name.clone();
+    let inc_target_id = id.clone();
+    let dec_target_id = id.clone();
+    let min_field = format!("{}", min);
+
+    view! {cx,
+        div() {
+            input(type="number", id=id, name=name, class="item-count-sel", min=min_field, max="99", step="1", bind:value=counter, on:input=move |evt| {
+                on_change.as_ref().map(|f| f(evt));
+            })
+            span(class="item-count-inc-dec", on:click=move |_| {
+                let i: i32 = counter.get_untracked().parse().unwrap();
+                let target = js_lib::get_element_by_id::<HtmlInputElement>(&inc_target_id).unwrap().expect(&format!("No such element with id {}", inc_target_id));
+                counter.set(format!("{}", i+1));
+                debug!(counter=%(counter.get_untracked()), "set counter to new value");
+                // We force an input event to get triggered for our target.
+                target.dispatch_event(&web_sys::Event::new("input").expect("Failed to create new event")).expect("Failed to dispatch event to target");
+            }) { "▲" }
+            " "
+            span(class="item-count-inc-dec", on:click=move |_| {
+                let i: i32 = counter.get_untracked().parse().unwrap();
+                let target = js_lib::get_element_by_id::<HtmlInputElement>(&dec_target_id).unwrap().expect(&format!("No such element with id {}", dec_target_id));
+                if i > min {
+                    counter.set(format!("{}", i-1));
+                    debug!(counter=%(counter.get_untracked()), "set counter to new value");
+                    // We force an input event to get triggered for our target.
+                    target.dispatch_event(&web_sys::Event::new("input").expect("Failed to create new event")).expect("Failed to dispatch event to target");
+                }
+            }) { "▼" }
+        }
+    }
+}

web/src/components/recipe_selection.rs

@@ -17,6 +17,7 @@ use sycamore::prelude::*;
 use tracing::{debug, instrument};
 
 use crate::app_state::{Message, StateHandler};
+use crate::components::NumberField;
 
 #[derive(Props)]
 pub struct RecipeCheckBoxProps<'ctx> {
@@ -37,26 +38,32 @@ pub fn RecipeSelection<'ctx, G: Html>(
     let RecipeCheckBoxProps { i, title, sh } = props;
     let id = Rc::new(i);
     let id_clone = id.clone();
-    let count = create_signal(
-        cx,
-        sh.get_value(
-            |state| match state.get_untracked().recipe_counts.get(id_clone.as_ref()) {
-                Some(count) => format!("{}", count),
-                None => "0".to_owned(),
-            },
-        ),
-    );
+    let id_for_count = id.clone();
+    let current_count = sh.get_selector(cx, move |state| {
+        *state
+            .get()
+            .recipe_counts
+            .get(id_for_count.as_ref())
+            .unwrap()
+    });
+    let count = create_signal(cx, format!("{}", *current_count.get_untracked()));
+    create_effect(cx, || {
+        let updated_count = format!("{}", current_count.get());
+        if updated_count != count.get_untracked().as_ref() {
+            count.set(updated_count);
+        }
+    });
     let title = title.get().clone();
-    let for_id = id.clone();
     let href = format!("/ui/recipe/view/{}", id);
     let name = format!("recipe_id:{}", id);
+    let for_id = name.clone();
     view! {cx,
         div() {
             label(for=for_id) { a(href=href) { (*title) } }
-            input(type="number", class="item-count-sel", min="0", bind:value=count, name=name, on:change=move |_| {
-                debug!(idx=%id, count=%(*count.get()), "setting recipe count");
-                sh.dispatch(cx, Message::UpdateRecipeCount(id.as_ref().clone(), count.get().parse().expect("Count is not a valid usize")));
-            })
+            NumberField(name=name, counter=count, min=0, on_change=Some(move |_| {
+                debug!(idx=%id, count=%(*count.get_untracked()), "setting recipe count");
+                sh.dispatch(cx, Message::UpdateRecipeCount(id.as_ref().clone(), count.get_untracked().parse().expect("Count is not a valid usize")));
+            }))
         }
     }
 }

web/src/js_lib.rs

@@ -12,7 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 use js_sys::Date;
-use web_sys::{window, Storage};
+use wasm_bindgen::JsCast;
+use web_sys::{window, Element, Storage};
 
 pub fn get_storage() -> Storage {
     window()
@@ -25,3 +26,18 @@ pub fn get_storage() -> Storage {
 pub fn get_ms_timestamp() -> u32 {
     Date::new_0().get_milliseconds()
 }
+
+pub fn get_element_by_id<E>(id: &str) -> Result<Option<E>, Element>
+where
+    E: JsCast,
+{
+    match window()
+        .expect("No window present")
+        .document()
+        .expect("No document in window")
+        .get_element_by_id(id)
+    {
+        Some(e) => e.dyn_into::<E>().map(|e| Some(e)),
+        None => Ok(None),
+    }
+}

web/static/app.css

@@ -18,6 +18,7 @@
     --tab-border-width: 3px;
     --tab-border-style: solid;
     --tab-border-radius: 15px;
+    --unicode-button-size: 2em;
 }
 
 @media print {
@@ -71,4 +72,8 @@ nav>h1 {
 
 .destructive {
     background-color: firebrick !important;
+}
+
+.item-count-inc-dec {
+    font-size: var(--unicode-button-size);
 }