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Add NamedView::{name, set_name} and {LinearLayout,FixedLayout}::find_child_from_name
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421c08c922
commit
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@ -24,7 +24,7 @@ use crate::{
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/// .child(Rect::from_size((0,2), (1,1)), TextView::new(r"\"))
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/// .child(Rect::from_size((0,2), (1,1)), TextView::new(r"\"))
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/// .child(Rect::from_size((14,2), (1,1)), TextView::new("/"))
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/// .child(Rect::from_size((14,2), (1,1)), TextView::new("/"))
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/// .child(Rect::from_size((3,1), (11,1)), Button::new("Clickme", |s| s.quit()));
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/// .child(Rect::from_size((3,1), (11,1)), Button::new("Clickme", |s| s.quit()));
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/// ````
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/// ```
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pub struct FixedLayout {
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pub struct FixedLayout {
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children: Vec<Child>,
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children: Vec<Child>,
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focus: usize,
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focus: usize,
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@ -125,6 +125,24 @@ impl FixedLayout {
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Some(self.children.remove(i).view)
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Some(self.children.remove(i).view)
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}
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}
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/// Looks for the child containing a view with the given name.
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///
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/// Returns `Some(i)` if `self.get_child(i)` has the given name, or
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/// contains a view with the given name.
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///
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/// Returns `None` if the given name was not found.
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pub fn find_child_from_name(&mut self, name: &str) -> Option<usize> {
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let selector = Selector::Name(name);
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for (i, c) in self.children.iter_mut().enumerate() {
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let mut found = false;
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c.view.call_on_any(&selector, &mut |_| found = true);
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if found {
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return Some(i);
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}
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}
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None
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}
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fn iter_mut<'a>(
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fn iter_mut<'a>(
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source: Direction,
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source: Direction,
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children: &'a mut [Child],
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children: &'a mut [Child],
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@ -292,6 +292,24 @@ impl LinearLayout {
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}
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}
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}
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}
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/// Looks for the child containing a view with the given name.
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///
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/// Returns `Some(i)` if `self.get_child(i)` has the given name, or
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/// contains a view with the given name.
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///
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/// Returns `None` if the given name was not found.
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pub fn find_child_from_name(&mut self, name: &str) -> Option<usize> {
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let selector = Selector::Name(name);
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for (i, c) in self.children.iter_mut().enumerate() {
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let mut found = false;
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c.view.call_on_any(&selector, &mut |_| found = true);
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if found {
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return Some(i);
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}
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}
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None
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}
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// If the cache can be used, return the cached size.
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// If the cache can be used, return the cached size.
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// Otherwise, return None.
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// Otherwise, return None.
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fn get_cache(&self, req: Vec2) -> Option<Vec2> {
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fn get_cache(&self, req: Vec2) -> Option<Vec2> {
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@ -12,7 +12,7 @@ use std::rc::Rc;
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/// See [`Identifiable`](crate::view::Identifiable) for an easy way to wrap any view with it.
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/// See [`Identifiable`](crate::view::Identifiable) for an easy way to wrap any view with it.
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pub struct NamedView<V> {
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pub struct NamedView<V> {
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view: Rc<RefCell<V>>,
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view: Rc<RefCell<V>>,
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id: String,
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name: String,
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}
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}
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/// Mutable reference to a view.
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/// Mutable reference to a view.
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@ -24,10 +24,10 @@ pub type ViewRef<V> = OwningHandle<RcRef<RefCell<V>>, RefMut<'static, V>>;
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impl<V> NamedView<V> {
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impl<V> NamedView<V> {
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/// Wraps `view` in a new `NamedView`.
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/// Wraps `view` in a new `NamedView`.
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pub fn new<S: Into<String>>(id: S, view: V) -> Self {
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pub fn new<S: Into<String>>(name: S, view: V) -> Self {
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NamedView {
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NamedView {
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view: Rc::new(RefCell::new(view)),
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view: Rc::new(RefCell::new(view)),
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id: id.into(),
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name: name.into(),
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}
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}
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}
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}
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@ -43,6 +43,16 @@ impl<V> NamedView<V> {
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OwningHandle::new_mut(cell_ref)
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OwningHandle::new_mut(cell_ref)
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}
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}
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/// Returns the name attached to this view.
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pub fn name(&self) -> &str {
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&self.name
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}
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/// Changes the name attached to this view.
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pub fn set_name<S: Into<String>>(&mut self, name: S) {
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self.name = name.into();
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}
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}
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}
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impl<T: View + 'static> ViewWrapper for NamedView<T> {
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impl<T: View + 'static> ViewWrapper for NamedView<T> {
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@ -83,7 +93,9 @@ impl<T: View + 'static> ViewWrapper for NamedView<T> {
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) {
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) {
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match selector {
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match selector {
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#[allow(deprecated)]
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#[allow(deprecated)]
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&Selector::Name(id) | &Selector::Id(id) if id == self.id => {
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&Selector::Name(name) | &Selector::Id(name)
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if name == self.name =>
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{
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callback(self)
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callback(self)
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}
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}
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s => {
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s => {
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@ -97,7 +109,11 @@ impl<T: View + 'static> ViewWrapper for NamedView<T> {
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fn wrap_focus_view(&mut self, selector: &Selector<'_>) -> Result<(), ()> {
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fn wrap_focus_view(&mut self, selector: &Selector<'_>) -> Result<(), ()> {
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match selector {
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match selector {
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#[allow(deprecated)]
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#[allow(deprecated)]
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&Selector::Name(id) | &Selector::Id(id) if id == self.id => Ok(()),
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&Selector::Name(name) | &Selector::Id(name)
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if name == self.name =>
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{
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Ok(())
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}
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s => self
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s => self
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.view
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.view
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.try_borrow_mut()
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.try_borrow_mut()
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