migrations/egui
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Add uiless_pass flag to retain state on empty / occluded frames

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This commit is contained in:
Lucas Meurer
2026-08-04 14:28:34 +02:00
parent 622bbbeccc
commit b18e888cd3
6 changed files with 196 additions and 19 deletions
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10
crates/eframe/src/native/epi_integration.rs
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@@ -268,10 +268,14 @@ impl EpiIntegration {
app: &mut dyn epi::App,
viewport_ui_cb: Option<&DeferredViewportUiCallback>,
mut raw_input: egui::RawInput,
is_visible: bool,
show_ui: bool,
) -> egui::FullOutput {
raw_input.time = Some(self.beginning.elapsed().as_secs_f64());
// We still run a pass while hidden so that app logic keeps ticking,
// but we tell egui to skip all book-keeping that assumes ui was shown:
raw_input.uiless_pass = !show_ui;
let close_requested = raw_input.viewport().close_requested();
app.raw_input_hook(&self.egui_ctx, &mut raw_input);
@@ -279,7 +283,7 @@ impl EpiIntegration {
let full_output = self.egui_ctx.run_ui(raw_input, |ui| {
if let Some(viewport_ui_cb) = viewport_ui_cb {
// Child viewport
if is_visible {
if show_ui {
profiling::scope!("viewport_callback");
viewport_ui_cb(ui);
}
@@ -289,7 +293,7 @@ impl EpiIntegration {
app.logic(ui.ctx(), &mut self.frame);
}
if is_visible {
if show_ui {
{
profiling::scope!("App::ui");
app.ui(ui, &mut self.frame);

4
crates/eframe/src/web/app_runner.rs
View File

@@ -280,6 +280,10 @@ impl AppRunner {
.and_then(|v| v.visible())
.unwrap_or(true);
// We still run a pass while hidden so that app logic keeps ticking,
// but we tell egui to skip all book-keeping that assumes ui was shown:
raw_input.uiless_pass = !is_visible;
let full_output = self.egui_ctx.run_ui(raw_input, |ui| {
self.app.logic(ui.ctx(), &mut self.frame);