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@@ -1,3 +1,5 @@
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+#![allow(non_snake_case)]
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+
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/*
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This example is a simple iOS-style calculator. This particular example can run any platform - Web, Mobile, Desktop.
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This calculator version uses React-style state management. All state is held as individual use_states.
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@@ -10,10 +12,10 @@ use dioxus::prelude::*;
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use separator::Separatable;
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fn main() {
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- dioxus::desktop::launch(APP);
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+ dioxus::desktop::launch(app);
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}
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-static APP: Component = |cx| {
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+fn app(cx: Scope) -> Element {
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let cur_val = use_state(&cx, || 0.0_f64);
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let operator = use_state(&cx, || None as Option<&'static str>);
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let display_value = use_state(&cx, || String::from(""));
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@@ -21,109 +23,111 @@ static APP: Component = |cx| {
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let toggle_percent = move |_| todo!();
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let input_digit = move |num: u8| display_value.modify().push_str(num.to_string().as_str());
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- rsx!(cx, div {
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- class: "calculator",
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- onkeydown: move |evt| match evt.key_code {
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- KeyCode::Add => operator.set(Some("+")),
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- KeyCode::Subtract => operator.set(Some("-")),
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- KeyCode::Divide => operator.set(Some("/")),
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- KeyCode::Multiply => operator.set(Some("*")),
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- KeyCode::Num0 => input_digit(0),
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- KeyCode::Num1 => input_digit(1),
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- KeyCode::Num2 => input_digit(2),
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- KeyCode::Num3 => input_digit(3),
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- KeyCode::Num4 => input_digit(4),
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- KeyCode::Num5 => input_digit(5),
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- KeyCode::Num6 => input_digit(6),
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- KeyCode::Num7 => input_digit(7),
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- KeyCode::Num8 => input_digit(8),
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- KeyCode::Num9 => input_digit(9),
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- KeyCode::Backspace => {
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- if !display_value.as_str().eq("0") {
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- display_value.modify().pop();
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+ cx.render(rsx!(
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+ div { class: "calculator",
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+ onkeydown: move |evt| match evt.key_code {
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+ KeyCode::Add => operator.set(Some("+")),
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+ KeyCode::Subtract => operator.set(Some("-")),
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+ KeyCode::Divide => operator.set(Some("/")),
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+ KeyCode::Multiply => operator.set(Some("*")),
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+ KeyCode::Num0 => input_digit(0),
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+ KeyCode::Num1 => input_digit(1),
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+ KeyCode::Num2 => input_digit(2),
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+ KeyCode::Num3 => input_digit(3),
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+ KeyCode::Num4 => input_digit(4),
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+ KeyCode::Num5 => input_digit(5),
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+ KeyCode::Num6 => input_digit(6),
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+ KeyCode::Num7 => input_digit(7),
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+ KeyCode::Num8 => input_digit(8),
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+ KeyCode::Num9 => input_digit(9),
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+ KeyCode::Backspace => {
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+ if !display_value.as_str().eq("0") {
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+ display_value.modify().pop();
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+ }
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}
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+ _ => {}
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}
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- _ => {}
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- }
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- div { class: "calculator-display", {[format_args!("{}", cur_val.separated_string())]} }
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- div { class: "input-keys"
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- div { class: "function-keys"
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- CalculatorKey {
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- {[if display_value == "0" { "C" } else { "AC" }]}
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- name: "key-clear",
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- onclick: move |_| {
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- display_value.set("0".to_string());
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- if display_value != "0" {
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- operator.set(None);
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- cur_val.set(0.0);
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+ div { class: "calculator-display", {[cur_val.separated_string()]} }
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+ div { class: "input-keys"
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+ div { class: "function-keys"
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+ CalculatorKey {
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+ {[if display_value == "0" { "C" } else { "AC" }]}
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+ name: "key-clear",
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+ onclick: move |_| {
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+ display_value.set("0".to_string());
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+ if display_value != "0" {
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+ operator.set(None);
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+ cur_val.set(0.0);
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+ }
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}
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}
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+ CalculatorKey {
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+ "±"
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+ name: "key-sign",
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+ onclick: move |_| {
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+ if display_value.starts_with("-") {
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+ display_value.set(display_value.trim_start_matches("-").to_string())
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+ } else {
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+ display_value.set(format!("-{}", *display_value))
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+ }
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+ },
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+ }
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+ CalculatorKey {
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+ "%"
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+ onclick: {toggle_percent}
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+ name: "key-percent",
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+ }
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}
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- CalculatorKey {
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- "±"
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- name: "key-sign",
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- onclick: move |_| {
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- if display_value.starts_with("-") {
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- display_value.set(display_value.trim_start_matches("-").to_string())
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- } else {
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- display_value.set(format!("-{}", *display_value))
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- }
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- },
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- }
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- CalculatorKey {
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- "%"
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- onclick: {toggle_percent}
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- name: "key-percent",
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- }
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- }
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- div { class: "digit-keys"
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- CalculatorKey { name: "key-0", onclick: move |_| input_digit(0), "0" }
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- CalculatorKey { name: "key-dot", onclick: move |_| display_value.modify().push_str("."), "●" }
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+ div { class: "digit-keys"
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+ CalculatorKey { name: "key-0", onclick: move |_| input_digit(0), "0" }
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+ CalculatorKey { name: "key-dot", onclick: move |_| display_value.modify().push_str("."), "●" }
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- {(1..9).map(|k| rsx!{
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- CalculatorKey { key: "{k}", name: "key-{k}", onclick: move |_| input_digit(k), "{k}" }
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- })}
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- }
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- div { class: "operator-keys"
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- CalculatorKey { name: "key-divide", onclick: move |_| operator.set(Some("/")) "÷" }
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- CalculatorKey { name: "key-multiply", onclick: move |_| operator.set(Some("*")) "×" }
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- CalculatorKey { name: "key-subtract", onclick: move |_| operator.set(Some("-")) "−" }
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- CalculatorKey { name: "key-add", onclick: move |_| operator.set(Some("+")) "+" }
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- CalculatorKey {
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- "="
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- name: "key-equals",
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- onclick: move |_| {
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- if let Some(op) = operator.as_ref() {
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- let rhs = display_value.parse::<f64>().unwrap();
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- let new_val = match *op {
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- "+" => *cur_val + rhs,
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- "-" => *cur_val - rhs,
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- "*" => *cur_val * rhs,
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- "/" => *cur_val / rhs,
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- _ => unreachable!(),
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- };
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- cur_val.set(new_val);
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- display_value.set(new_val.to_string());
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- operator.set(None);
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- }
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- },
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+ {(1..9).map(|k| rsx!{
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+ CalculatorKey { key: "{k}", name: "key-{k}", onclick: move |_| input_digit(k), "{k}" }
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+ })}
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+ }
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+ div { class: "operator-keys"
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+ CalculatorKey { name: "key-divide", onclick: move |_| operator.set(Some("/")) "÷" }
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+ CalculatorKey { name: "key-multiply", onclick: move |_| operator.set(Some("*")) "×" }
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+ CalculatorKey { name: "key-subtract", onclick: move |_| operator.set(Some("-")) "−" }
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+ CalculatorKey { name: "key-add", onclick: move |_| operator.set(Some("+")) "+" }
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+ CalculatorKey {
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+ "="
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+ name: "key-equals",
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+ onclick: move |_| {
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+ if let Some(op) = operator.as_ref() {
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+ let rhs = display_value.parse::<f64>().unwrap();
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+ let new_val = match *op {
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+ "+" => *cur_val + rhs,
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+ "-" => *cur_val - rhs,
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+ "*" => *cur_val * rhs,
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+ "/" => *cur_val / rhs,
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+ _ => unreachable!(),
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+ };
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+ cur_val.set(new_val);
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+ display_value.set(new_val.to_string());
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+ operator.set(None);
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+ }
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+ },
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+ }
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}
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}
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}
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- })
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-};
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+ ))
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+}
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-#[derive(Props)]
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-struct CalculatorKeyProps<'a> {
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+#[inline_props]
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+fn CalculatorKey<'a>(
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+ cx: Scope,
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name: &'static str,
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onclick: &'a dyn Fn(Arc<MouseEvent>),
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children: Element<'a>,
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-}
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-
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-fn CalculatorKey<'a>(cx: Scope<'a, CalculatorKeyProps<'a>>) -> Element {
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- rsx!(cx, button {
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- class: "calculator-key {cx.props.name}"
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- onclick: {cx.props.onclick}
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- {&cx.props.children}
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+) -> Element {
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+ cx.render(rsx! {
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+ button {
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+ class: "calculator-key {name}"
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+ onclick: {onclick}
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+ {children}
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+ }
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})
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}
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