Struct TabRecord 

pub struct TabRecord {
    pub tab_id: String,
    pub workspace_id: String,
    pub name: String,
    pub block_ids: Vec<String>,
    pub focused_node_id: String,
    pub magnified_node_id: String,
    pub rootnode: Option<LayoutNode>,
}

Phase E.2b — tab as held by the srv reducer’s canonical state. Tabs are owned by exactly one workspace; the workspace’s tab_ids field gives the ordering. E.3 adds block_ids so the tab tracks which blocks live inside it.

Fields

tab_id: String

workspace_id: String

name: String

block_ids: Vec<String>

Phase E.3 — ordered list of block ids in this tab. Mirrors the persistent Tab.blockids field.

focused_node_id: String

Phase E.4 (Option A) — focused layout node id. Empty when no pane in this tab is focused. Mirrors LayoutState.focusednodeid for the tab’s layout row. Mutated by Command::SetFocusedNode and bootstrap-loaded from the LayoutState row at startup. The remaining LayoutState fields (rootnode/leaforder/pendingbackendactions) stay on the existing wcore-direct path until Option B.

magnified_node_id: String

Phase E.4 (Option A) — magnified layout node id. Empty when no pane is magnified (toggle-off). Mirrors LayoutState.magnifiednodeid.

rootnode: Option<LayoutNode>

Phase E.4.B (Option B) — layout tree root.

Mirrors the persisted LayoutState.rootnode. Mutated by the LayoutClear / LayoutSetTree / LayoutInsertNode / LayoutDeleteNode reducer arms (and the rest of the 11 in follow-up PRs). None represents an empty tree (no panes).

Status: scaffolded; bootstrap-loaded. persist:: bootstrap_state_from_wstore populates this from LayoutState.rootnode at startup. Production writers still go through the wcore-direct path (per srv-phase-e4b-implementation-plan-2026-05-03.md Phase 7); reducer arms mutate this field but no production code dispatches to them yet — same “no-callers-yet” discipline H.6 follows in the host reducer.

Trait Implementations

impl Clone for TabRecord

fn clone(&self) -> TabRecord

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TabRecord

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TabRecord

fn default() -> TabRecord

Returns the “default value” for a type.

impl PartialEq for TabRecord

fn eq(&self, other: &TabRecord) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TabRecord