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use crate::*;
/// A select demo page showcasing dropdown and cascading selections.
///
/// # Returns
///
/// - `VirtualNode`: The select demo page virtual DOM tree.
pub fn page_select() -> VirtualNode {
let selected_fruit: Signal<String> = use_signal(|| "apple".to_string());
let selected_country: Signal<String> = use_signal(|| "".to_string());
let selected_city: Signal<String> = use_signal(|| "".to_string());
let feedback: Signal<String> = use_signal(|| "".to_string());
let textarea_content: Signal<String> = use_signal(|| "".to_string());
html! {
div {
class: c_page_container()
div {
class: c_page_header()
h1 {
class: c_page_title()
"Select & Textarea"
}
p {
class: c_page_subtitle()
"Dropdown selection, cascading selects, and textarea binding."
}
}
my_card {
title: "Simple Select"
div {
class: c_form_input_wrapper()
label {
class: c_form_label()
"Choose a fruit"
}
select {
class: c_select_input()
value: selected_fruit
onchange: move |event: NativeEvent| {
if let NativeEvent::Change(change_event) = event {
selected_fruit.set(change_event.get_value().clone());
}
}
option {
value: "apple"
"Apple"
}
option {
value: "banana"
"Banana"
}
option {
value: "cherry"
"Cherry"
}
option {
value: "durian"
"Durian"
}
}
}
p {
class: c_event_result()
"Selected: "
span {
class: c_event_highlight()
selected_fruit
}
}
}
my_card {
title: "Cascading Select"
div {
class: c_form_input_wrapper()
label {
class: c_form_label()
"Country"
}
select {
class: c_select_input()
value: selected_country
onchange: move |event: NativeEvent| {
if let NativeEvent::Change(change_event) = event {
selected_country.set(change_event.get_value().clone());
selected_city.set("".to_string());
}
}
option {
value: ""
"-- Select Country --"
}
option {
value: "china"
"China"
}
option {
value: "japan"
"Japan"
}
option {
value: "usa"
"USA"
}
}
}
if {!selected_country.get().is_empty()} {
div {
class: c_form_input_wrapper()
label {
class: c_form_label()
"City"
}
select {
class: c_select_input()
value: selected_city
onchange: move |event: NativeEvent| {
if let NativeEvent::Change(change_event) = event {
selected_city.set(change_event.get_value().clone());
}
}
option {
value: ""
"-- Select City --"
}
for (city_value, city_label) in {match selected_country.get().as_str() { "china" => vec![("beijing".to_string(), "Beijing".to_string()), ("shanghai".to_string(), "Shanghai".to_string()), ("guangzhou".to_string(), "Guangzhou".to_string())], "japan" => vec![("tokyo".to_string(), "Tokyo".to_string()), ("osaka".to_string(), "Osaka".to_string()), ("kyoto".to_string(), "Kyoto".to_string())], "usa" => vec![("new-york".to_string(), "New York".to_string()), ("los-angeles".to_string(), "Los Angeles".to_string()), ("chicago".to_string(), "Chicago".to_string())], _ => vec![] }} {
option {
value: city_value
city_label
}
}
}
}
} else {
""
}
if {!selected_city.get().is_empty()} {
div {
class: c_success_box()
"You selected: "
span {
class: c_event_highlight()
selected_city
}
}
} else {
""
}
}
my_card {
title: "Textarea with Feedback"
div {
class: c_form_input_wrapper()
label {
class: c_form_label()
"Your feedback"
}
textarea {
class: c_textarea_input()
placeholder: "Share your thoughts..."
value: textarea_content
oninput: move |event: NativeEvent| {
if let NativeEvent::Input(input_event) = event {
textarea_content.set(input_event.get_value().clone());
}
}
rows: "4"
cols: "50"
}
}
div {
class: c_textarea_counter()
span {
class: c_textarea_counter_text()
{format!("{} / 200 characters", textarea_content.get().len())}
}
}
primary_button {
label: "Submit"
onclick: move |_event: NativeEvent| {
let content: String = textarea_content.get();
if content.trim().is_empty() {
feedback.set("Please enter some feedback.".to_string());
} else if content.len() > 200 {
feedback.set("Feedback is too long (max 200 chars).".to_string());
} else {
feedback.set(format!("Thank you for your feedback: \"{}\"", content));
textarea_content.set("".to_string());
}
}
"Submit"
}
if {!feedback.get().is_empty()} {
div {
class: c_success_box()
feedback
}
} else {
""
}
}
}
}
}