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ARCADIA-Studio/crates/oa-desktop/src/app/process_multiselect.rs
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sorokin.oleg.edu ff712b2419 Preserve exact Process selection across definition navigation
Keep caller identity and property subjects aligned when opening and returning from qualified contributions, and when explicitly navigating to local references. Validate camera, source, history and read-only boundaries.
2026-09-23 06:25:50 -07:00

261 lines
9.9 KiB
Rust

//! Exact Process presentation selection and one atomic order transaction.
use super::*;
use crate::behavior::topology::group_reorder::{Plan, Prepared};
use crate::diagram_selection::Selection;
use crate::diagram_usage::{Surface, Target};
use multiselect::{Choice, Event};
fn subject(target: &Target) -> Option<Id> {
match target {
Target::ProcessOccurrence(endpoint) => Some(endpoint.occurrence),
Target::ProcessLink(id) | Target::ProcessPreviewLink { relation: id, .. } => Some(*id),
_ => None,
}
}
impl App {
pub(crate) fn process_preview_primary(&self) -> Option<&Target> {
let context = self.topology_context()?;
let selection = self.diagram_selection.as_ref()?;
if selection.scope() != multiselect::process_context(context).scope {
return None;
}
selection
.primary()
.filter(|target| subject(target) == Some(self.selected))
.filter(|target| match target {
Target::ProcessOccurrence(endpoint) => !endpoint.references.is_empty(),
Target::ProcessPreviewLink { .. } => true,
_ => false,
})
}
pub(super) fn reconcile_process_multiselect(&mut self) {
let Some(context) = self.topology_context() else {
return;
};
let current = multiselect::process_context(context);
let visible = self
.behavior
.topology
.selection_targets(self.project(), context.owner);
let old = self
.diagram_selection
.as_ref()
.filter(|s| s.scope() == current.scope)
.and_then(Selection::primary)
.cloned();
let address = self.behavior.topology.selection_address();
let focused = self
.diagram_focus(Surface::Process(context.owner))
.map(|usage| usage.target.clone());
let legacy = focused
.clone()
.or_else(|| {
address
.as_ref()
.filter(|a| a.owner == context.owner && a.endpoint.occurrence == self.selected)
.map(|a| Target::ProcessOccurrence(a.endpoint.clone()))
})
.or_else(|| {
visible
.iter()
.find(|target| match target {
Target::ProcessOccurrence(endpoint) => {
endpoint.references.is_empty() && endpoint.occurrence == self.selected
}
Target::ProcessLink(id) => *id == self.selected,
_ => false,
})
.cloned()
})
.filter(|target| visible.contains(target));
let held = old.as_ref().is_some_and(|target| {
subject(target) == Some(self.selected)
&& focused.as_ref().is_none_or(|focused| focused == target)
&& match target {
Target::ProcessOccurrence(endpoint) if !endpoint.references.is_empty() => {
address
.as_ref()
.is_some_and(|a| a.owner == context.owner && a.endpoint == *endpoint)
}
_ => true,
}
});
let lost = old.as_ref().is_some_and(|target| !visible.contains(target));
let selection = self
.diagram_selection
.get_or_insert_with(|| Selection::new(current.scope));
selection.reconcile(current.scope, |target| visible.contains(target));
if held || lost {
if selection.primary() != old.as_ref() {
self.inspect_process_multiselect_primary();
}
} else if selection.primary() != legacy.as_ref() {
if let Some(target) = legacy {
selection.replace(target, |t| visible.contains(t));
} else {
selection.clear();
}
}
if self.process_preview_primary().is_some() {
self.draft = None;
}
}
pub(super) fn inspect_process_multiselect_primary(&mut self) {
let Some(context) = self.topology_context() else {
return;
};
let primary = self
.diagram_selection
.as_ref()
.and_then(Selection::primary)
.cloned();
self.behavior.topology.clear_context();
self.selected = primary.as_ref().and_then(subject).unwrap_or(context.owner);
self.selected_node = None;
self.selected_bend = None;
self.selected_attachment = None;
self.diagram_navigation_focus = None;
if let Some(Target::ProcessOccurrence(endpoint)) = primary
&& !endpoint.references.is_empty()
&& let Ok(resolved) = oa_core::topology_context::TopologyIndex::new(self.project())
.resolve(context.owner, &endpoint)
{
self.behavior.topology.select_context(resolved.address);
}
self.refresh_draft();
if self.process_preview_primary().is_some() {
self.draft = None;
}
}
pub(super) fn process_multiselect_event(&mut self, event: Event) {
let Some(context) = self.topology_context() else {
return;
};
if let Event::Refuse(_, reason) = &event
&& diagram_removal::enabled(self)
{
self.status = reason.clone();
return;
}
if !diagram_removal::enabled(self) || !self.behavior.topology.selecting() {
self.status =
"Finish or cancel the active edit before changing the process selection.".into();
return;
}
let visible = self
.behavior
.topology
.selection_targets(self.project(), context.owner);
match event {
Event::Choose(_, target, choice) => {
if !visible.contains(&target) {
return;
}
self.reconcile_process_multiselect();
let selection = self.diagram_selection.as_mut().unwrap();
let valid = |t: &Target| visible.contains(t);
match choice {
Choice::Replace => {
selection.replace(target, valid);
}
Choice::Add => {
selection.add(target, valid);
}
Choice::Remove => {
selection.remove(&target);
}
Choice::Toggle => {
selection.toggle(target, valid);
}
Choice::Inspect => {
selection.set_primary(&target);
}
}
self.inspect_process_multiselect_primary();
}
Event::Collapse(_, target) => {
if !visible.contains(&target) {
return;
}
self.diagram_selection
.as_mut()
.unwrap()
.replace(target, |t| visible.contains(t));
self.inspect_process_multiselect_primary();
}
Event::Clear(_) => {
self.diagram_selection.as_mut().unwrap().clear();
self.inspect_process_multiselect_primary();
}
Event::Refuse(_, reason) => self.status = reason,
Event::Hide(_) => {
self.status =
"Process cards are model contributions, not placements. Hide is unavailable."
.into()
}
Event::Move(..) => {
self.status =
"Process positions come from their paths. Reorder within one column instead."
.into()
}
Event::ProcessReorder(snapshot, destination) => {
if !snapshot
.targets()
.iter()
.all(|target| visible.contains(target))
{
return;
}
match Prepared::new(self.project(), context.owner, snapshot.targets())
.and_then(|prepared| prepared.plan(destination))
{
Ok(Plan::Noop) => {}
Ok(Plan::Change(command)) => {
if self.execute(*command) {
self.inspect_process_multiselect_primary();
self.status = format!(
"Reordered {} contributions · Undo restores their order",
snapshot.targets().len()
);
}
}
Err(error) => self.status = error,
}
}
}
}
/// A no-op must not retire a pending reveal or allocate a history entry.
pub(super) fn process_order_noop(&self, message: &Message) -> bool {
let Some(context) = self.topology_context() else {
return false;
};
match message {
Message::DiagramSelection(Event::ProcessReorder(snapshot, destination)) => {
Prepared::new(self.project(), context.owner, snapshot.targets())
.and_then(|prepared| prepared.plan(*destination))
.is_ok_and(|p| matches!(p, Plan::Noop))
}
Message::TopologyCanvas(crate::behavior::topology::CanvasEvent::Reorder {
context: captured,
occurrence,
before,
}) if *captured == context => crate::behavior::topology::reorder(
self.project(),
context.owner,
*occurrence,
*before,
)
.is_ok_and(|p| matches!(p, Plan::Noop)),
_ => false,
}
}
}
#[cfg(test)]
mod tests;