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Fix unmount lifecycle

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Ryan McGrath 2019-05-24 22:21:18 -07:00
parent 1abc6a74dc
commit 22e9628b27
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GPG key ID: 811674B62B666830
1 changed files with 6 additions and 5 deletions
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11
alchemy/src/reconciler.rs
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@ -129,7 +129,7 @@ pub fn diff_and_patch_tree(old: RSX, new: RSX, stretch: &mut Stretch, depth: usi
match old_element.children.pop() {
Some(child) => {
if let RSX::VirtualNode(mut old_child) = child {
unmount_component_tree(&mut old_child)?;
unmount_component_tree(&mut old_child, stretch)?;
}
},
@ -310,12 +310,12 @@ fn mount_component_tree(mut new_element: VirtualNode, stretch: &mut Stretch) ->
///
/// This fires the hooks from a recursive inward-out pattern; that is, the deepest nodes in the tree
/// are the first to go, ensuring that everything is properly cleaned up.
fn unmount_component_tree(old_element: &mut VirtualNode) -> Result<(), Box<Error>> {
fn unmount_component_tree(old_element: &mut VirtualNode, stretch: &mut Stretch) -> Result<(), Box<Error>> {
// We only need to recurse on VirtualNodes. Text and so on will automagically drop
// because we don't support freeform text, it has to be inside a <Text> at all times.
for child in old_element.children.iter_mut() {
if let RSX::VirtualNode(child_element) = child {
unmount_component_tree(child_element)?;
unmount_component_tree(child_element, stretch)?;
}
}
@ -323,7 +323,8 @@ fn unmount_component_tree(old_element: &mut VirtualNode) -> Result<(), Box<Error
// graph. Remember that a Component can actually not necessarily have a native backing
// node, hence our necessary check.
if let Some(old_component) = &mut old_element.instance {
//old_component.component_will_unmount();
let mut component = old_component.write().unwrap();
component.component_will_unmount(&old_element.props);
/*if let Some(view) = old_component.get_native_backing_node() {
if let Some(native_view) = replace_native_view {
@ -337,7 +338,7 @@ fn unmount_component_tree(old_element: &mut VirtualNode) -> Result<(), Box<Error
// Rather than try to keep track of parent/child stuff for removal... just obliterate it,
// the underlying library does a good job of killing the links anyway.
if let Some(layout_node) = &mut old_element.layout_node {
//layout_node.set_children(vec![]);
stretch.set_children(*layout_node, vec![])?;
}
Ok(())