mirror of
https://github.com/FliegendeWurst/cursive.git
synced 2024-11-12 20:23:35 +00:00
Add on_change callback to CheckBox
This commit is contained in:
parent
05f66b8e1b
commit
77a623674a
@ -10,10 +10,15 @@ fn main() {
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siv.add_layer(Dialog::new(ListView::new()
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.child("Name", EditView::new().min_length(10))
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.child("Email", LinearLayout::horizontal()
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.child(EditView::new().min_length(15))
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.child(EditView::new().min_length(15).disabled().with_id("email1"))
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.child(TextView::new("@"))
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.child(EditView::new().min_length(10)))
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.child("Receive spam?", Checkbox::new())
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.child(EditView::new().min_length(10).disabled().with_id("email2")))
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.child("Receive spam?", Checkbox::new().on_change(|s, checked| {
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for name in &["email1", "email2"] {
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let view: &mut EditView = s.find_id(name).unwrap();
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view.set_enabled(checked);
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}
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}))
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.delimiter()
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.with(|list| {
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for i in 0..50 {
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@ -1,15 +1,19 @@
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use With;
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use Cursive;
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use Printer;
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use vec::Vec2;
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use view::View;
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use event::{Event, EventResult, Key};
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use direction::Direction;
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use std::rc::Rc;
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/// Checkable box.
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#[derive(Debug)]
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pub struct Checkbox {
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checked: bool,
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on_change: Option<Rc<Fn(&mut Cursive, bool)>>,
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}
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new_default!(Checkbox);
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@ -17,24 +21,40 @@ new_default!(Checkbox);
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impl Checkbox {
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/// Creates a new, unchecked checkbox.
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pub fn new() -> Self {
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Checkbox { checked: false }
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Checkbox {
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checked: false,
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on_change: None,
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}
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}
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/// Sets a callback to be used when the state changes.
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pub fn set_on_change<F: 'static + Fn(&mut Cursive, bool)>(&mut self, on_change: F) {
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self.on_change = Some(Rc::new(on_change));
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}
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/// Sets a callback to be used when the state changes.
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///
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/// Chainable variant.
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pub fn on_change<F: 'static + Fn(&mut Cursive, bool)>(self, on_change: F) -> Self {
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self.with(|s| s.set_on_change(on_change))
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}
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/// Toggles the checkbox state.
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pub fn toggle(&mut self) {
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self.checked = !self.checked;
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pub fn toggle(&mut self) -> EventResult {
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let checked = !self.checked;
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self.set_checked(checked)
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}
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/// Check the checkbox.
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pub fn check(&mut self) {
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self.checked = true;
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pub fn check(&mut self) -> EventResult {
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self.set_checked(true)
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}
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/// Check the checkbox.
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///
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/// Chainable variant.
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pub fn checked(self) -> Self {
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self.with(Self::check)
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self.with(|s| {s.check();})
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}
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/// Returns `true` if the checkbox is checked.
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@ -43,15 +63,26 @@ impl Checkbox {
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}
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/// Uncheck the checkbox.
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pub fn uncheck(&mut self) {
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self.checked = false;
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pub fn uncheck(&mut self) -> EventResult {
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self.set_checked(false)
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}
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/// Uncheck the checkbox.
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///
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/// Chainable variant.
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pub fn unchecked(self) -> Self {
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self.with(Self::uncheck)
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self.with(|s| { s.uncheck(); })
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}
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/// Sets the checkbox state.
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pub fn set_checked(&mut self, checked: bool) -> EventResult {
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self.checked = checked;
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if let Some(ref on_change) = self.on_change {
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let on_change = on_change.clone();
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EventResult::with_cb(move |s| on_change(s, checked))
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} else {
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EventResult::Consumed(None)
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}
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}
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}
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@ -78,9 +109,7 @@ impl View for Checkbox {
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match event {
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Event::Key(Key::Enter) |
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Event::Char(' ') => self.toggle(),
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_ => return EventResult::Ignored,
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_ => EventResult::Ignored,
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}
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EventResult::Consumed(None)
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}
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}
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@ -1,6 +1,7 @@
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use unicode_segmentation::UnicodeSegmentation;
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use unicode_width::UnicodeWidthStr;
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use With;
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use direction::Direction;
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use theme::{ColorStyle, Effect};
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use vec::Vec2;
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@ -23,8 +24,9 @@ pub struct EditView {
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/// (When the content is too long for the display, we hide part of it)
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offset: usize,
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/// Last display length, to know the possible offset range
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last_length: usize, /* scrollable: bool,
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* TODO: add a max text length? */
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last_length: usize,
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enabled: bool,
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}
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new_default!(EditView);
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@ -38,9 +40,39 @@ impl EditView {
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offset: 0,
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min_length: 1,
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last_length: 0, // scrollable: false,
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enabled: true,
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}
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}
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/// Disables this view.
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///
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/// A disabled view cannot be selected.
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pub fn disable(&mut self) {
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self.enabled = false;
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}
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/// Disables this view.
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///
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/// Chainable variant.
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pub fn disabled(self) -> Self {
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self.with(Self::disable)
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}
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/// Re-enables this view.
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pub fn enable(&mut self) {
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self.enabled = true;
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}
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/// Enable or disable this view.
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pub fn set_enabled(&mut self, enabled: bool) {
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self.enabled = enabled;
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}
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/// Returns `true` if this view is enabled.
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pub fn is_enabled(&self) -> bool {
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self.enabled
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}
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/// Replace the entire content of the view with the given one.
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pub fn set_content(&mut self, content: &str) {
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self.offset = 0;
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@ -83,7 +115,12 @@ impl View for EditView {
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let width = self.content.width();
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printer.with_color(ColorStyle::Secondary, |printer| {
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printer.with_effect(Effect::Reverse, |printer| {
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let effect = if self.enabled {
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Effect::Reverse
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} else {
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Effect::Simple
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};
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printer.with_effect(effect, |printer| {
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if width < self.last_length {
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// No problem, everything fits.
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printer.print((0, 0), &self.content);
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@ -145,7 +182,7 @@ impl View for EditView {
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}
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fn take_focus(&mut self, _: Direction) -> bool {
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true
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self.enabled
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}
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fn on_event(&mut self, event: Event) -> EventResult {
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@ -1,11 +1,12 @@
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use XY;
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use direction;
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use view::View;
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use view::SizeCache;
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use view::{Selector, SizeCache};
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use vec::Vec2;
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use Printer;
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use event::{Event, EventResult, Key};
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use std::any::Any;
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use std::cmp::min;
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/// Arranges its children linearly according to its orientation.
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@ -366,4 +367,8 @@ impl View for LinearLayout {
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res => res,
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}
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}
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fn find(&mut self, selector: &Selector) -> Option<&mut Any> {
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self.children.iter_mut().filter_map(|c| c.view.find(selector)).next()
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}
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}
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use With;
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use vec::Vec2;
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use view::View;
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use view::Selector;
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use direction;
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use view::scroll::ScrollBase;
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use event::{Event, EventResult, Key};
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use std::any::Any;
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enum Child {
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Row(String, Box<View>),
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Delimiter,
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@ -261,4 +264,8 @@ impl View for ListView {
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self.scrollbase.scroll_to(self.focus);
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true
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}
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fn find(&mut self, selector: &Selector) -> Option<&mut Any> {
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self.children.iter_mut().filter_map(Child::view).filter_map(|v| v.find(selector)).next()
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}
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}
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