76eff3c351
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- Introduced `DocsPageSeparators` component to manage visual gaps between pages in the document editor. - Updated `DocsBodyMarginMasks` to include dark mode support for improved styling. - Refactored `DocsPageViewInner` to integrate new separators and margin masks, enhancing layout consistency. - Adjusted layout constants to increase the gap between stacked pages for better visual separation. - Improved test coverage for page flow calculations and layout metrics.
104 lines
3.4 KiB
TypeScript
104 lines
3.4 KiB
TypeScript
import assert from "node:assert/strict"
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import { describe, it } from "node:test"
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import {
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computePageFlowPushes,
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computeSimulatedLayoutHeight,
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countPageFlowSpacers,
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} from "./extensions/docs-page-flow-decoration.ts"
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import { computePageCount } from "./docs-page-metrics.ts"
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describe("docs-page-flow spacers", () => {
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const bodyAreaH = 900
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const interPageSpacer = 200
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it("inserts no spacer when content fits page 1", () => {
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assert.equal(countPageFlowSpacers([{ height: 400 }], bodyAreaH, interPageSpacer), 0)
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})
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it("inserts one spacer when a block crosses page 1", () => {
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assert.equal(
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countPageFlowSpacers([{ height: 850 }, { height: 100 }], bodyAreaH, interPageSpacer),
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1
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)
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})
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it("does not insert spacers for blocks already past page 1 boundary", () => {
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assert.equal(
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countPageFlowSpacers([{ height: 40 }, { height: 40 }], bodyAreaH, interPageSpacer),
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0
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)
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})
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it("inserts one spacer per crossing block in a layout pass", () => {
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assert.equal(
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countPageFlowSpacers([{ height: 1300 }], bodyAreaH, interPageSpacer),
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1
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)
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})
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it("inserts spacers at each page boundary for many blocks", () => {
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const blocks = Array.from({ length: 10 }, () => ({ height: 400 }))
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const pushes = computePageFlowPushes(blocks, bodyAreaH, interPageSpacer)
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assert.equal(pushes.length, 4)
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assert.deepEqual(
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pushes.map((p) => p.breakY),
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[900, 2000, 3100, 4200]
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)
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})
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it("pushes content that starts in the inter-page gap", () => {
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const pushes = computePageFlowPushes(
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[{ height: 910 }, { height: 100 }],
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bodyAreaH,
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interPageSpacer
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)
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assert.equal(pushes.length, 2)
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assert.equal(pushes[0].blockIndex, 0)
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assert.equal(pushes[1].blockIndex, 1)
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assert.equal(pushes[1].pushPx, 190)
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})
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it("does not double-count nested blocks (list model)", () => {
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const listHeight = 300
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const topLevelOnly = [{ height: 850 }, { height: listHeight }, { height: 100 }]
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const nestedOvercount = [
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{ height: 850 },
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{ height: listHeight },
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...Array.from({ length: 10 }, () => ({ height: listHeight })),
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{ height: 100 },
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]
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const topLevelPushes = countPageFlowSpacers(topLevelOnly, bodyAreaH, interPageSpacer)
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const nestedPushes = countPageFlowSpacers(nestedOvercount, bodyAreaH, interPageSpacer)
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assert.equal(topLevelPushes, 1)
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assert.ok(nestedPushes > topLevelPushes)
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})
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it("simulated height matches page count across five pages", () => {
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const blocks = Array.from({ length: 10 }, () => ({ height: 400 }))
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const simH = computeSimulatedLayoutHeight(blocks, bodyAreaH, interPageSpacer)
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const pages = computePageCount(simH, {
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bodyAreaHeight: bodyAreaH,
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interPageSpacer,
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pageWidth: 0,
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pageHeight: 0,
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margins: { top: 0, right: 0, bottom: 0, left: 0 },
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headerMarginPx: 0,
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footerMarginPx: 0,
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})
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assert.equal(simH, 5200)
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assert.equal(pages, 5)
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})
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it("inserts multiple spacers for tall content split into lines", () => {
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const lineHeight = 24
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const totalH = 2500
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const lines = Math.ceil(totalH / lineHeight)
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const units = Array.from({ length: lines }, (_, i) => ({
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height: i === lines - 1 ? totalH - lineHeight * (lines - 1) : lineHeight,
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}))
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const pushes = computePageFlowPushes(units, bodyAreaH, interPageSpacer)
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assert.ok(pushes.length >= 2)
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})
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})
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