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Viewports: give the caller a Ui instead of Context (#7779)

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* Part of https://github.com/emilk/egui/issues/3524

This is a breaking change, as it changes the how embedded viewports
work.
Before it was up to the user to display a `egui::Window` if they wanted.
Now egui creates an `egui::Window` for you, so you only need to add the
contents.

To signal this change in behavior, `ViewportClass::Embedded` is gone and
is now called `ViewportClass::EmbeddedWindow`.
This commit is contained in:
Emil Ernerfeldt
2025-12-15 18:51:57 +01:00
committed by GitHub
parent 4a81ca8dcf
commit 9487dc35ec
7 changed files with 144 additions and 80 deletions
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13
crates/egui_demo_lib/src/demo/extra_viewport.rs
View File

@@ -22,17 +22,12 @@ impl crate::Demo for ExtraViewport {
egui::ViewportBuilder::default()
.with_title(self.name())
.with_inner_size([400.0, 512.0]),
|ctx, class| {
if class == egui::ViewportClass::Embedded {
|ui, class| {
if class == egui::ViewportClass::EmbeddedWindow {
// Not a real viewport
egui::Window::new(self.name())
.id(id)
.open(open)
.show(ctx, |ui| {
ui.label("This egui integration does not support multiple viewports");
});
ui.label("This egui integration does not support multiple viewports");
} else {
egui::CentralPanel::default().show(ctx, |ui| {
egui::CentralPanel::default().show_inside(ui, |ui| {
viewport_content(ui, ctx, open);
});
}

4
crates/egui_demo_lib/tests/snapshots/demos/Extra Viewport.png
View File

@@ -1,3 +1,3 @@
version https://git-lfs.github.com/spec/v1
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size 10125
oid sha256:f5bc54f7829d1362ff13404103a8734a3cf739d63a5f812bad5e6beba57e73fe
size 9510