feat(desktop): embed BoosAPI Desktop client as a subproject

Vendor the rebranded BoosAPI Desktop client (Tauri + Vue) into metapi as a monorepo subdirectory under desktop/. Source only — node_modules, dist, Cargo target and the upstream .git history are excluded. desktop/ keeps its own independent Cargo workspace (desktop/src-tauri with crates/*); it is not part of the backend boosapi crate, so a `cargo check` at the metapi root still compiles only the backend. Build the desktop app from desktop/src-tauri per desktop/README.md. Note: app icons are still placeholder assets pending the final BoosAPI logo. The updater signing keys live outside the repo and are not included.
2026-06-22 11:32:57 +08:00
parent d9c78ecc73
commit e0a5f57793
2305 changed files with 449355 additions and 0 deletions
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+import { describe, expect, it } from 'vitest'
+import {
+  computeLiveRange,
+  DEFAULT_NODE_HEIGHT,
+  estimateHeightRange,
+  resolveAverageNodeHeight,
+  resolveDeferNodes,
+  resolveVirtualizationEnabled,
+} from '../packages/markstream-angular/src/components/shared/render-window'
+
+describe('markstream-angular render window helpers', () => {
+  it('computes a bounded live range around the focus index', () => {
+    expect(computeLiveRange(0, 0, 5, 2)).toEqual({ start: 0, end: 0 })
+    expect(computeLiveRange(10, 0, 5, 2)).toEqual({ start: 0, end: 4 })
+    expect(computeLiveRange(10, 9, 5, 2)).toEqual({ start: 6, end: 10 })
+    expect(computeLiveRange(100, 50, 9, 3)).toEqual({ start: 46, end: 55 })
+  })
+
+  it('estimates placeholder heights from measured nodes and falls back to the average', () => {
+    const nodeHeights = new Map<number, number>([
+      [0, 40],
+      [1, 24],
+      [4, 56],
+    ])
+
+    const average = resolveAverageNodeHeight(nodeHeights)
+    expect(average).toBeCloseTo(40, 0)
+    expect(resolveAverageNodeHeight(new Map())).toBe(DEFAULT_NODE_HEIGHT)
+    expect(estimateHeightRange(0, 3, nodeHeights, average)).toBeCloseTo(104, 0)
+  })
+
+  it('only defers nodes when virtualization is off and viewport priority is enabled', () => {
+    expect(resolveVirtualizationEnabled(500, 320)).toBe(true)
+    expect(resolveVirtualizationEnabled(100, 320)).toBe(false)
+    expect(resolveVirtualizationEnabled(500, 0)).toBe(false)
+    expect(resolveVirtualizationEnabled(500, -1)).toBe(false)
+
+    expect(resolveDeferNodes({
+      parsedNodeCount: 120,
+      virtualizationEnabled: false,
+      viewportPriority: true,
+      deferNodesUntilVisible: true,
+      maxLiveNodes: 320,
+    })).toBe(true)
+
+    expect(resolveDeferNodes({
+      parsedNodeCount: 1200,
+      virtualizationEnabled: false,
+      viewportPriority: true,
+      deferNodesUntilVisible: true,
+      maxLiveNodes: 320,
+    })).toBe(false)
+
+    expect(resolveDeferNodes({
+      parsedNodeCount: 120,
+      virtualizationEnabled: true,
+      viewportPriority: true,
+      deferNodesUntilVisible: true,
+      maxLiveNodes: 320,
+    })).toBe(false)
+
+    expect(resolveDeferNodes({
+      parsedNodeCount: 120,
+      virtualizationEnabled: false,
+      viewportPriority: true,
+      deferNodesUntilVisible: true,
+      maxLiveNodes: 0,
+    })).toBe(false)
+  })
+})