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ohos: Present on vsync signals (#33117)

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Rely on callbacks from the vertical synchronization driver,
to drive presentation.
Future commits will base animation updates and touchless
gestures like fling off these vsync events.

Signed-off-by: Jonathan Schwender <jonathan.schwender@huawei.com>
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
This commit is contained in:
Jonathan Schwender 2024-08-30 21:25:50 +08:00 • committed by GitHub
parent a58d816319
commit 8a0c7487e7
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6 changed files with 83 additions and 9 deletions
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13
ports/servoshell/egl/servo_glue.rs
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@ -82,6 +82,7 @@ pub struct ServoGlue {
rendering_context: RenderingContext,
servo: Servo<ServoWindowCallbacks>,
batch_mode: bool,
need_present: bool,
callbacks: Rc<ServoWindowCallbacks>,
events: Vec<EmbedderEvent>,
context_menu_sender: Option<IpcSender<ContextMenuResult>>,
@ -110,6 +111,7 @@ impl ServoGlue {
rendering_context,
servo,
batch_mode: false,
need_present: false,
callbacks,
events: vec![],
context_menu_sender: None,
@ -432,7 +434,6 @@ impl ServoGlue {
fn handle_servo_events(&mut self) -> Result<(), &'static str> {
let mut need_update = false;
let mut need_present = false;
for (browser_id, event) in self.servo.get_events() {
match event {
EmbedderMsg::ChangePageTitle(title) => {
@ -611,7 +612,7 @@ impl ServoGlue {
self.callbacks.host_callbacks.on_panic(reason, backtrace);
},
EmbedderMsg::ReadyToPresent(_webview_ids) => {
need_present = true;
self.need_present = true;
},
EmbedderMsg::Status(..) |
EmbedderMsg::SelectFiles(..) |
@ -632,10 +633,14 @@ impl ServoGlue {
if need_update {
let _ = self.perform_updates();
}
if need_present {
Ok(())
}
pub fn present_if_needed(&mut self) {
if self.need_present {
self.need_present = false;
self.servo.present();
}
Ok(())
}
}