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wezterm: speculative workaround for RDP disconnect panic

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Attempt to recover in the case where we cannot re-allocate
our vertex buffers; try to restore the prior dimensions
and resize the OS window to match.

refs: https://github.com/wez/wezterm/issues/265
This commit is contained in:
Wez Furlong 2020-09-12 22:33:35 -07:00
parent d939211dc5
commit 3484478ba2
1 changed files with 22 additions and 11 deletions
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25
src/frontend/gui/termwindow.rs
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@ -1769,8 +1769,10 @@ impl TermWindow {
fn apply_dimensions(
&mut self,
dimensions: &Dimensions,
scale_changed_cells: Option<RowsAndCols>,
mut scale_changed_cells: Option<RowsAndCols>,
) {
let orig_dimensions = self.dimensions;
self.dimensions = *dimensions;
// Technically speaking, we should compute the rows and cols
@ -1830,20 +1832,29 @@ impl TermWindow {
(size, *dimensions)
};
self.render_state
.advise_of_window_size_change(
if let Err(err) = self.render_state.advise_of_window_size_change(
&self.render_metrics,
dimensions.pixel_width,
dimensions.pixel_height,
)
.expect("failed to advise of resize");
) {
log::error!(
"failed to advise of resize from {:?} -> {:?}: {:?}",
orig_dimensions,
dimensions,
err
);
// Try to restore the original dimensions
self.dimensions = orig_dimensions;
// Avoid the inner resize below
scale_changed_cells.take();
} else {
self.terminal_size = size;
}
let mux = Mux::get().unwrap();
if let Some(window) = mux.get_window(self.mux_window_id) {
for tab in window.iter() {
tab.resize(size).ok();
tab.resize(self.terminal_size).ok();
}
};
self.update_title();