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fix borrow panic

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yggverse 2024-10-01 00:44:27 +03:00
parent cefdcdc859
commit d3d6e859f0
1 changed files with 13 additions and 8 deletions
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21
src/browser/main/tab/page/navigation/history.rs
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@ -77,22 +77,27 @@ impl History {
}
pub fn back(&self, follow_to_index: bool) -> Option<GString> {
if let Some(index) = self.index.borrow().as_ref() {
if let Some(memory) = self.memory.borrow().get(index - 1) {
if follow_to_index {
self.index.replace(Some(index - 1));
let index = self.index.borrow().clone(); // keep outside as borrow
if let Some(usize) = index {
// Make sure value positive to prevent panic
if usize > 0 {
if let Some(memory) = self.memory.borrow().get(usize - 1) {
if follow_to_index {
self.index.replace(Some(usize - 1));
}
return Some(memory.request.clone());
}
return Some(memory.request.clone());
}
}
None
}
pub fn forward(&self, follow_to_index: bool) -> Option<GString> {
if let Some(index) = self.index.borrow().as_ref() {
if let Some(memory) = self.memory.borrow().get(index + 1) {
let index = self.index.borrow().clone(); // keep outside as borrow
if let Some(usize) = index {
if let Some(memory) = self.memory.borrow().get(usize + 1) {
if follow_to_index {
self.index.replace(Some(index + 1));
self.index.replace(Some(usize + 1));
}
return Some(memory.request.clone());
}