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use crate::RelmRemoveExt;
trait RemoveTempChild {
fn remove(&mut self);
}
struct TempWidgetsInner<C: RelmRemoveExt> {
container: C,
children: Vec<C::Child>,
}
impl<C: RelmRemoveExt> RemoveTempChild for TempWidgetsInner<C>
where
C::Child: AsRef<C::Child>,
{
fn remove(&mut self) {
for child in &mut self.children {
self.container.container_remove(&child);
}
}
}
pub struct LoadingWidgets {
containers: Vec<Box<dyn RemoveTempChild>>,
}
impl std::fmt::Debug for LoadingWidgets {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("LoadingWidgets")
.field("containers", &self.containers.len())
.finish()
}
}
impl Drop for LoadingWidgets {
fn drop(&mut self) {
for child in &mut self.containers {
child.remove();
}
}
}
impl LoadingWidgets {
fn temp_child<C, W>(container: &C, children: &[W]) -> Box<dyn RemoveTempChild>
where
C: RelmRemoveExt + Clone + 'static,
W: AsRef<C::Child>,
C::Child: Clone + AsRef<C::Child>,
{
let container = container.clone();
let children = children.iter().map(|c| c.as_ref().clone()).collect();
let temp_child: TempWidgetsInner<C> = TempWidgetsInner {
container,
children,
};
Box::new(temp_child)
}
pub fn new<C, W>(container: &C, child: W) -> Self
where
C: RelmRemoveExt + Clone + 'static,
W: AsRef<C::Child>,
C::Child: Clone + AsRef<C::Child>,
{
Self::with_children(container, &[child])
}
pub fn with_children<C, W>(container: &C, children: &[W]) -> Self
where
C: RelmRemoveExt + Clone + 'static,
W: AsRef<C::Child>,
C::Child: Clone + AsRef<C::Child>,
{
let temp_child = Self::temp_child(container, children);
Self {
containers: vec![temp_child],
}
}
pub fn push<C, W>(&mut self, container: &C, child: W)
where
C: RelmRemoveExt + Clone + 'static,
W: AsRef<C::Child>,
C::Child: Clone + AsRef<C::Child>,
{
let temp_child = Self::temp_child(container, &[child]);
self.containers.push(temp_child);
}
pub fn add_many<C, W>(&mut self, container: &C, children: &[W])
where
C: RelmRemoveExt + Clone + 'static,
W: AsRef<C::Child>,
C::Child: Clone + AsRef<C::Child>,
{
let temp_child = Self::temp_child(container, children);
self.containers.push(temp_child);
}
}