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EditView: Prevent overflow error with no available space

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This commit is contained in:
Alexandre Bury 2016-10-04 17:49:40 -07:00
parent 8fded82434
commit bb62452149
1 changed files with 5 additions and 0 deletions
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5
src/views/edit_view.rs
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@ -229,6 +229,10 @@ impl EditView {
.map(|g| g.width())
.next()
.unwrap_or(1);
if c_len > self.last_length {
// Weird - no available space?
return;
}
// Now, we have to fit self.content[..self.cursor]
// into self.last_length - c_len.
let available = self.last_length - c_len;
@ -239,6 +243,7 @@ impl EditView {
simple_suffix_length(&self.content[self.offset..self.cursor],
available);
self.offset = self.cursor - suffix_length;
// Make sure the cursor is in view
assert!(self.cursor >= self.offset);
}