548 lines
24 KiB
Rust
548 lines
24 KiB
Rust
//! Exceptional topology publication. Ordinary input/damage never constructs a plan.
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use super::*;
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use smithay::output::{Mode, Scale};
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use smithay::utils::Transform;
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/// Mutable resource bookkeeping lives outside the pure ownership plan.
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#[derive(Default)]
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pub(crate) struct DesktopTransition {
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pub retired: HashSet<Output>,
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pub redraw: HashSet<Output>,
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pub publishing: bool,
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pub shell_pending: bool,
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}
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/// The backend reports hardware that actually survived application/rollback.
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pub(crate) struct DesktopOutput {
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pub output: Output,
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pub identity: String,
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pub mode: Mode,
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pub transform: Transform,
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pub scale: Scale,
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pub position: Point<i32, Logical>,
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}
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impl DesktopOutput {
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fn geometry(&self) -> OutputGeometry {
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let size = self
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.transform
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.transform_size(self.mode.size)
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.to_f64()
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.to_logical(self.scale.fractional_scale())
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.to_i32_ceil();
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OutputGeometry::new(self.position.x, self.position.y, size.w, size.h)
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}
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}
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#[derive(Default)]
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pub(crate) struct DesktopChanges {
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pub layout: bool,
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pub focus: bool,
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pub shell: bool,
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pub outputs: HashSet<Output>,
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}
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impl Ferese {
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pub(crate) fn begin_desktop_transition(&mut self) {
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assert!(self.desktop_transition.is_none(), "nested desktop transition");
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self.desktop_transition = Some(DesktopTransition::default());
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}
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/// No event-loop dispatch occurs between planning and publication. Only the
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/// small ownership map is staged; layout and animation remain authoritative.
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pub(crate) fn publish_desktop(
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&mut self,
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runtime: Vec<DesktopOutput>,
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) -> Result<DesktopChanges, ferese_core::OutputError> {
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assert!(self.desktop_transition.is_some());
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let inventory = runtime
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.iter()
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.map(|output| (self.ensure_output_identity(&output.identity), output.geometry()))
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.collect::<Vec<_>>();
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let workspaces = self.workspaces.iter().map(|workspace| workspace.id).collect::<Vec<_>>();
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let plan = self
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.output_workspaces
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.plan_desktop(&inventory, &workspaces, self.workspaces.next_workspace_id())?;
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let mut changes = DesktopChanges {
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layout: !plan.affected_outputs.is_empty(),
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focus: plan.focus_changed,
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shell: !plan.affected_outputs.is_empty(),
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outputs: self.desktop_transition.as_ref().unwrap().redraw.clone(),
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};
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let floats = self
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.windows
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.ids()
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.values()
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.filter_map(|id| {
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let workspace = self.workspaces.workspace_for_window(*id)?;
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let WindowPlacement::Floating { rect } = self.workspaces.placement(*id)? else {
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return None;
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};
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let destination = plan.outputs.output_for_workspace(workspace)?;
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let new = plan.outputs.geometry(destination)?;
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let old_owner = self.output_workspaces.output_for_workspace(workspace);
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let old = old_owner.and_then(|owner| self.output_workspaces.geometry(owner));
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(old_owner != Some(destination) || old != Some(new)).then(|| {
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let bounds = |g: OutputGeometry| Rect::new(g.x as f64, g.y as f64, g.width as f64, g.height as f64);
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(*id, moved_floating_rect(rect, bounds(old.unwrap_or(new)), bounds(new)))
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})
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})
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.collect::<Vec<_>>();
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// All fallible planning precedes publication. Resource retirement may
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// already have invalidated unusable scanouts, but not desktop policy.
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for id in plan.created_workspaces {
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assert_eq!(self.workspaces.create_workspace(), id);
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}
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let surviving = runtime.iter().map(|output| output.output.clone()).collect::<Vec<_>>();
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let old_outputs = self.output_ids.keys().cloned().collect::<Vec<_>>();
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for output in old_outputs {
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if !surviving.contains(&output) {
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self.retire_output_resources(&output);
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self.space.unmap_output(&output);
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}
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}
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if self.output_ids.is_empty() && !runtime.is_empty() {
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self.reset_animation_clock();
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}
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self.output_ids.clear();
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self.outputs_by_id.clear();
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self.output_names.clear();
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for (output, (id, geometry)) in runtime.into_iter().zip(inventory) {
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let state_changed = output.output.current_mode() != Some(output.mode)
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|| output.output.current_transform() != output.transform
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|| output.output.current_scale().fractional_scale() != output.scale.fractional_scale()
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|| self.space.output_geometry(&output.output).is_none_or(|old| {
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old.loc != output.position || old.size.w != geometry.width || old.size.h != geometry.height
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});
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if state_changed {
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output.output.change_current_state(
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Some(output.mode),
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Some(output.transform),
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Some(output.scale),
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Some(output.position),
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);
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self.space.map_output(&output.output, output.position);
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changes.layout = true;
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changes.shell = true;
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}
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if state_changed || plan.affected_outputs.contains(&id) {
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changes.outputs.insert(output.output.clone());
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}
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if state_changed && self.session_lock.active() {
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self.session_lock.output_added(&output.output);
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}
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self.output_names.insert(id, output.output.name());
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self.outputs_by_id.insert(id, output.output.clone());
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self.output_ids.insert(output.output, id);
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}
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// Slides referencing evacuated workspaces cannot survive ownership
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// changes. Unaffected slide/world/viewport/resize owners remain intact.
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self.workspace_slides.retain(|id, slide| {
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plan.outputs.geometry(*id).is_some()
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&& slide
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.items
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.iter()
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.all(|item| plan.outputs.output_for_workspace(item.workspace) == Some(*id))
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});
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self.output_workspaces = plan.outputs;
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for (id, rect) in floats {
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self.workspaces
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.set_floating_rect(id, rect)
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.expect("planned floating window exists");
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}
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self.refresh_workspace_slide_offsets();
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if changes.focus {
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if let Some(output) = self.output_workspaces.focused_output()
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&& let Some(workspace) = self.output_workspaces.active_workspace(output)
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{
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self.activate_output_workspace(output, workspace);
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} else {
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self.focused_window = None;
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}
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}
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Ok(changes)
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}
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pub(crate) fn finish_desktop_transition(&mut self, mut changes: DesktopChanges) {
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self.desktop_transition.as_mut().unwrap().publishing = true;
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let activity_output = self.space.outputs().next().map(|output| output.name());
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if let Some(output) = activity_output
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&& self.activities.store.attach_output(&output)
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{
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self.activities.changed();
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}
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if changes.layout {
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self.relayout_desktop();
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}
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if changes.focus || self.session_lock.active() {
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self.restore_keyboard_focus();
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}
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self.reconcile_layer_keyboard_focus();
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self.refresh_lock_outputs();
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self.refresh_idle_inhibition();
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let batch = self.desktop_transition.take().unwrap();
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changes.outputs.extend(batch.redraw);
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// Animation/layout helpers may request snapshots, but only this point
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// can emit the complete topology generation.
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if changes.shell || changes.layout || changes.focus || batch.shell_pending {
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self.send_shell_snapshots();
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}
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changes.outputs.retain(|output| {
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self.output_ids.contains_key(output)
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|| self
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.direct_backend
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.as_ref()
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.is_some_and(|backend| backend.physical_outputs().any(|physical| physical == output))
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});
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if !changes.outputs.is_empty() {
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crate::backends::direct::render_on(self, &changes.outputs.into_iter().collect::<Vec<_>>());
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use smithay::output::{PhysicalProperties, Subpixel};
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use smithay::reexports::wayland_server::Resource;
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use std::io::{Read, Write};
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use std::os::unix::net::UnixStream;
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fn output(name: &str, x: i32, width: i32) -> DesktopOutput {
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DesktopOutput {
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output: Output::new(
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name.into(),
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PhysicalProperties {
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size: (0, 0).into(),
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subpixel: Subpixel::Unknown,
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make: "test".into(),
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model: "test".into(),
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},
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),
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identity: name.into(),
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mode: Mode {
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size: (width, 800).into(),
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refresh: 60_000,
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},
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transform: Transform::Normal,
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scale: Scale::Fractional(1.0),
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position: (x, 0).into(),
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}
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}
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fn request(wire: &mut UnixStream, object: u32, opcode: u32, args: &[u32]) {
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for word in [object, (((args.len() + 2) * 4) as u32) << 16 | opcode]
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.into_iter()
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.chain(args.iter().copied())
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{
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wire.write_all(&word.to_ne_bytes()).unwrap();
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}
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}
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fn window(state: &mut Ferese, event_loop: &mut EventLoop<'static, Ferese>) -> (Window, UnixStream) {
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use smithay::reexports::wayland_protocols::xdg::shell::server::xdg_wm_base::XdgWmBase;
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use smithay::reexports::wayland_server::protocol::wl_compositor::WlCompositor;
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use smithay::wayland::shell::xdg::XdgWmBaseUserData;
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let (server, mut wire) = UnixStream::pair().unwrap();
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let client = state
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.display_handle
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.insert_client(server, Arc::new(ClientState::default()))
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.unwrap();
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let compositor = client
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.create_resource::<WlCompositor, (), Ferese>(&state.display_handle, 6, ())
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.unwrap();
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let shell = client
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.create_resource::<XdgWmBase, XdgWmBaseUserData, Ferese>(&state.display_handle, 6, Default::default())
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.unwrap();
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request(&mut wire, compositor.id().protocol_id(), 0, &[2]);
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request(&mut wire, shell.id().protocol_id(), 2, &[3, 2]);
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request(&mut wire, 3, 1, &[4]);
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event_loop.dispatch(Duration::from_millis(10), state).unwrap();
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let window = state
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.space
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.elements()
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.find(|window| {
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window
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.toplevel()
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.unwrap()
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.wl_surface()
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.client()
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.is_some_and(|owner| owner.id() == client.id())
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})
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.unwrap()
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.clone();
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(window, wire)
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}
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fn events(state: &mut Ferese, wire: &mut UnixStream) -> Vec<(u32, u32, Vec<u32>)> {
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state.display_handle.flush_clients().unwrap();
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wire.set_nonblocking(true).unwrap();
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let mut bytes = Vec::new();
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match wire.read_to_end(&mut bytes) {
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Ok(_) => {}
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Err(error) => assert_eq!(error.kind(), std::io::ErrorKind::WouldBlock),
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}
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let mut result = Vec::new();
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let mut offset = 0;
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while offset < bytes.len() {
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let word = |at| u32::from_ne_bytes(bytes[at..at + 4].try_into().unwrap());
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let header = word(offset + 4);
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let end = offset + (header >> 16) as usize;
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result.push((
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word(offset),
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header & 0xffff,
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(offset + 8..end).step_by(4).map(word).collect(),
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));
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offset = end;
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}
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result
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}
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#[test]
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fn planned_geometry_matches_smithay_at_fractional_scale_and_rotation() {
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for transform in [Transform::Normal, Transform::_90, Transform::Flipped270] {
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let mut entry = output("geometry", -500, 1920);
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entry.mode.size.h = 1080;
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entry.scale = Scale::Fractional(1.75);
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entry.transform = transform;
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entry.output.change_current_state(
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Some(entry.mode),
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Some(transform),
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Some(entry.scale),
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Some(entry.position),
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);
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let mut space = Space::<Window>::default();
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space.map_output(&entry.output, entry.position);
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let actual = space.output_geometry(&entry.output).unwrap();
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assert_eq!(
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entry.geometry(),
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OutputGeometry::new(actual.loc.x, actual.loc.y, actual.size.w, actual.size.h)
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);
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}
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}
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#[test]
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fn topology_publication_protocol_and_readiness_regressions() {
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// The subprocess owns private sockets and config; never touches a live session.
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if std::env::var_os("FERESE_DESKTOP_TEST_CHILD").is_none() {
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let runtime = tempfile::tempdir().unwrap();
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let result = std::process::Command::new(std::env::current_exe().unwrap())
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.args([
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"--exact",
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"state::reconciliation::tests::topology_publication_protocol_and_readiness_regressions",
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"--nocapture",
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])
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.env("FERESE_DESKTOP_TEST_CHILD", "1")
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.env("XDG_RUNTIME_DIR", runtime.path())
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.env("XDG_CONFIG_HOME", runtime.path())
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.env("XDG_STATE_HOME", runtime.path())
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.output()
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.unwrap();
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assert!(
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result.status.success(),
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"{}\n{}",
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String::from_utf8_lossy(&result.stdout),
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String::from_utf8_lossy(&result.stderr)
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);
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return;
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}
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let mut event_loop = EventLoop::try_new().unwrap();
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let config = crate::config::Config::default().runtime_config().unwrap();
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let mut state = Ferese::new(&mut event_loop, Display::new().unwrap(), config).unwrap();
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let a = output("a", 0, 1200);
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let b = output("b", 1200, 800);
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let a_handle = a.output.clone();
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let b_handle = b.output.clone();
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state.begin_desktop_transition();
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let changes = state.publish_desktop(vec![a, b]).unwrap();
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state.finish_desktop_transition(changes);
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let a_id = state.output_ids[&a_handle];
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let b_id = state.output_ids[&b_handle];
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let b_workspace = state.output_workspaces.active_workspace(b_id).unwrap();
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// Real protocol resources let us observe exactly what clients receive.
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let (server, mut shell_wire) = UnixStream::pair().unwrap();
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let client = state
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.display_handle
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.insert_client(server, Arc::new(ClientState::default()))
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.unwrap();
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let shell = client
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.create_resource::<FereseShellV1, (), Ferese>(&state.display_handle, 6, ())
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.unwrap();
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state.shell_resources.push(shell.downgrade());
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state.send_shell_snapshots();
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events(&mut state, &mut shell_wire);
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let original_serial = state.shell_snapshot_serial;
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// Invalid planning leaves output metadata, ownership and shell unchanged.
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let original = state.output_workspaces.clone();
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state.begin_desktop_transition();
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let mut invalid = state.current_desktop_outputs();
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invalid[0].mode.size.w = 0;
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assert!(state.publish_desktop(invalid).is_err());
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assert_eq!(state.output_workspaces, original);
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assert_eq!(a_handle.current_mode().unwrap().size.w, 1200);
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assert!(events(&mut state, &mut shell_wire).is_empty());
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state.finish_desktop_transition(DesktopChanges::default());
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assert_eq!(state.shell_snapshot_serial, original_serial);
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// A real XDG toplevel needs a new size; it deliberately never acknowledges it.
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let (slow, _slow_wire) = window(&mut state, &mut event_loop);
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let slow_id = WindowId(101);
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let initial = Rect::new(1500.0, 500.0, 600.0, 600.0);
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state
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.workspaces
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.insert_floating_window(slow_id, b_workspace, initial, true)
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.unwrap();
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state.windows.register_window(slow.clone(), slow_id);
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let mut geometry = WindowGeometry::new(initial, None);
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geometry.client.committed_size = Some(ClientSize::from_rect(initial));
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state.windows.set_geometry(slow_id, geometry);
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state.output_workspaces.focus_output(b_id).unwrap();
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state.restore_output_focus();
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state.relayout();
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events(&mut state, &mut shell_wire);
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let before_serial = state.shell_snapshot_serial;
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let spare = state.workspaces.create_workspace();
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state.output_workspaces.assign_workspace(b_id, spare).unwrap();
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state.workspace_slides.insert(
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b_id,
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WorkspaceSlide::new(None, spare, b_workspace, SwipeDirection::Right),
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);
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state.begin_desktop_transition();
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state.unregister_output(&b_handle);
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state.unregister_output(&b_handle); // Duplicate retirement is harmless.
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assert_eq!(
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state.workspaces.placement(slow_id),
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Some(WindowPlacement::Floating { rect: initial })
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);
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assert_eq!(state.output_workspaces.output_for_workspace(b_workspace), Some(b_id));
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state.send_shell_snapshots();
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assert!(events(&mut state, &mut shell_wire).is_empty());
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let mut runtime = state.current_desktop_outputs();
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runtime.retain(|entry| entry.output == a_handle);
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runtime[0].mode.size = (500, 400).into();
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let changes = state.publish_desktop(runtime).unwrap();
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assert_eq!(state.output_workspaces.output_for_workspace(b_workspace), Some(a_id));
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assert_eq!(state.focused_window, Some(slow_id));
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assert!(!state.workspace_slides.contains_key(&b_id));
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state.send_shell_snapshots();
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assert!(events(&mut state, &mut shell_wire).is_empty());
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state.finish_desktop_transition(changes);
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assert_eq!(state.shell_snapshot_serial, before_serial + 1);
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let published = events(&mut state, &mut shell_wire);
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let shell_events = published
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.iter()
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.filter(|(id, _, _)| *id == shell.id().protocol_id())
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.collect::<Vec<_>>();
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assert_eq!(shell_events.iter().filter(|(_, opcode, _)| *opcode == 0).count(), 1);
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assert_eq!(shell_events.iter().filter(|(_, opcode, _)| *opcode == 4).count(), 1);
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assert_eq!(shell_events.iter().filter(|(_, opcode, _)| *opcode == 2).count(), 1);
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for (_, opcode, args) in &shell_events {
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if *opcode == 3 {
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assert_eq!(args[3], a_id.0 as u32);
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if args[1] == b_workspace.0 as u32 {
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assert_eq!(&args[args.len() - 2..], &[1, 1]);
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}
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} else if *opcode == 2 {
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let active = 3 + args[2].div_ceil(4) as usize;
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assert_eq!(args[active + 1], b_workspace.0 as u32);
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assert_eq!(args[active + 2], 1);
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} else if *opcode == 1 {
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|
assert_eq!(args[1], slow_id.0 as u32);
|
|
assert_eq!(args[3], b_workspace.0 as u32);
|
|
}
|
|
}
|
|
let WindowPlacement::Floating { rect } = state.workspaces.placement(slow_id).unwrap() else {
|
|
panic!()
|
|
};
|
|
assert!(rect.x >= 0.0 && rect.y >= 0.0 && rect.x + rect.width <= 500.0 && rect.y + rect.height <= 400.0);
|
|
assert!(
|
|
state.windows.transaction(&slow_id).is_some(),
|
|
"topology commit must not await XDG acknowledgement"
|
|
);
|
|
assert_eq!(
|
|
state.windows.geometry(&slow_id).unwrap().client.committed_size,
|
|
Some(ClientSize::from_rect(initial))
|
|
);
|
|
|
|
// A separate workspace/output keeps progressing while the slow client waits.
|
|
state.begin_desktop_transition();
|
|
let mut runtime = state.current_desktop_outputs();
|
|
runtime.push(output("c", 500, 800));
|
|
let changes = state.publish_desktop(runtime).unwrap();
|
|
state.finish_desktop_transition(changes);
|
|
let c_id = state.persistent_output_id("c").unwrap();
|
|
let c_workspace = state.output_workspaces.active_workspace(c_id).unwrap();
|
|
let mut viewport = AnimatedValue::new(0.0);
|
|
viewport.set_target(200.0);
|
|
state
|
|
.viewports
|
|
.insert(c_workspace, ViewportPresentation::from_motion(viewport));
|
|
let now = state.start_time.elapsed();
|
|
state.advance_animations_at(Duration::from_millis(16), now + Duration::from_millis(16));
|
|
assert!(state.viewports[&c_workspace].motion().current > 0.0);
|
|
assert!(state.windows.transaction(&slow_id).is_some());
|
|
state.advance_animations_at(Duration::from_millis(334), now + Duration::from_millis(350));
|
|
assert!(state.windows.transaction(&slow_id).is_none());
|
|
|
|
// A no-op/resume inventory keeps ownership and emits no duplicate generation.
|
|
events(&mut state, &mut shell_wire);
|
|
let before = state.output_workspaces.clone();
|
|
for _ in 0..3 {
|
|
state.begin_desktop_transition();
|
|
let runtime = state.current_desktop_outputs();
|
|
let changes = state.publish_desktop(runtime).unwrap();
|
|
assert!(!changes.layout && !changes.focus && !changes.shell);
|
|
assert!(changes.outputs.is_empty());
|
|
state.finish_desktop_transition(changes);
|
|
}
|
|
assert_eq!(state.output_workspaces, before);
|
|
assert!(events(&mut state, &mut shell_wire).is_empty());
|
|
assert_eq!(state.workspaces.workspace_for_window(slow_id), Some(b_workspace));
|
|
|
|
let unfocused = state.outputs_by_id[&c_id].clone();
|
|
let focused = state.focused_window;
|
|
state.unregister_output(&unfocused);
|
|
assert_eq!(
|
|
state.focused_window, focused,
|
|
"removing a non-focused output preserves window focus"
|
|
);
|
|
|
|
// Lock protection remains authoritative through headless loss/recovery.
|
|
use smithay::reexports::wayland_protocols::ext::session_lock::v1::server::ext_session_lock_manager_v1::ExtSessionLockManagerV1;
|
|
let (server, mut lock_wire) = UnixStream::pair().unwrap();
|
|
let client = state
|
|
.display_handle
|
|
.insert_client(server, Arc::new(ClientState::default()))
|
|
.unwrap();
|
|
let lock = client
|
|
.create_resource::<ExtSessionLockManagerV1, (), Ferese>(&state.display_handle, 1, ())
|
|
.unwrap();
|
|
request(&mut lock_wire, lock.id().protocol_id(), 1, &[2]);
|
|
event_loop.dispatch(Duration::from_millis(10), &mut state).unwrap();
|
|
assert!(state.session_lock.active());
|
|
state.begin_desktop_transition();
|
|
for output in state.output_ids.keys().cloned().collect::<Vec<_>>() {
|
|
state.unregister_output(&output);
|
|
}
|
|
let changes = state.publish_desktop(Vec::new()).unwrap();
|
|
state.finish_desktop_transition(changes);
|
|
assert!(state.output_ids.is_empty());
|
|
assert!(state.space.outputs().next().is_none());
|
|
assert!(state.output_workspaces.focused_output().is_none());
|
|
assert!(state.focused_window.is_none());
|
|
assert!(state.workspace_slides.is_empty());
|
|
assert!(state.seat.get_keyboard().unwrap().current_focus().is_none());
|
|
assert_eq!(state.workspaces.workspace_for_window(slow_id), Some(b_workspace));
|
|
state.begin_desktop_transition();
|
|
let changes = state.publish_desktop(vec![output("a", 0, 1200)]).unwrap();
|
|
state.finish_desktop_transition(changes);
|
|
assert_eq!(state.output_workspaces.output_for_workspace(b_workspace), Some(a_id));
|
|
assert!(state.session_lock.active());
|
|
assert!(state.surface_under((20.0, 20.0).into()).is_none());
|
|
}
|
|
}
|