chore(desktop): remove dead code

This commit is contained in:
Adam
2025-11-07 13:34:41 -06:00
parent 7f51b181d4
commit c5a558f3da

View File

@@ -1,846 +0,0 @@
import { bundledLanguages, type BundledLanguage, type ShikiTransformer } from "shiki"
import { splitProps, type ComponentProps, createEffect, onMount, onCleanup, createMemo, createResource } from "solid-js"
import { useLocal, type TextSelection } from "@/context/local"
import { getFileExtension, getNodeOffsetInLine, getSelectionInContainer } from "@/utils"
import { useShiki } from "@opencode-ai/ui"
type DefinedSelection = Exclude<TextSelection, undefined>
interface Props extends ComponentProps<"div"> {
code: string
path: string
}
export function Code(props: Props) {
const ctx = useLocal()
const highlighter = useShiki()
const [local, others] = splitProps(props, ["class", "classList", "code", "path"])
const lang = createMemo(() => {
const ext = getFileExtension(local.path)
if (ext in bundledLanguages) return ext
return "text"
})
let container: HTMLDivElement | undefined
let isProgrammaticSelection = false
const ranges = createMemo<DefinedSelection[]>(() => {
const items = ctx.context.all() as Array<{ type: "file"; path: string; selection?: DefinedSelection }>
const result: DefinedSelection[] = []
for (const item of items) {
if (item.path !== local.path) continue
const selection = item.selection
if (!selection) continue
result.push(selection)
}
return result
})
const createLineNumberTransformer = (selections: DefinedSelection[]): ShikiTransformer => {
const highlighted = new Set<number>()
for (const selection of selections) {
const startLine = selection.startLine
const endLine = selection.endLine
const start = Math.max(1, Math.min(startLine, endLine))
const end = Math.max(start, Math.max(startLine, endLine))
const count = end - start + 1
if (count <= 0) continue
const values = Array.from({ length: count }, (_, index) => start + index)
for (const value of values) highlighted.add(value)
}
return {
name: "line-number-highlight",
line(node, index) {
if (!highlighted.has(index)) return
this.addClassToHast(node, "line-number-highlight")
const children = node.children
if (!Array.isArray(children)) return
for (const child of children) {
if (!child || typeof child !== "object") continue
const element = child as { type?: string; properties?: { className?: string[] } }
if (element.type !== "element") continue
const className = element.properties?.className
if (!Array.isArray(className)) continue
const matches = className.includes("diff-oldln") || className.includes("diff-newln")
if (!matches) continue
if (className.includes("line-number-highlight")) continue
className.push("line-number-highlight")
}
},
}
}
const [html] = createResource(
() => ranges(),
async (activeRanges) => {
if (!highlighter.getLoadedLanguages().includes(lang())) {
await highlighter.loadLanguage(lang() as BundledLanguage)
}
return highlighter.codeToHtml(local.code || "", {
lang: lang() && lang() in bundledLanguages ? lang() : "text",
theme: "opencode",
transformers: [transformerUnifiedDiff(), transformerDiffGroups(), createLineNumberTransformer(activeRanges)],
}) as string
},
)
onMount(() => {
if (!container) return
let ticking = false
const onScroll = () => {
if (!container) return
// if (ctx.file.active()?.path !== local.path) return
if (ticking) return
ticking = true
requestAnimationFrame(() => {
ticking = false
ctx.file.scroll(local.path, container!.scrollTop)
})
}
const onSelectionChange = async () => {
if (!container) return
if (isProgrammaticSelection) return
// if (ctx.file.active()?.path !== local.path) return
const d = getSelectionInContainer(container)
if (!d) return
const p = (await ctx.file.node(local.path))?.selection
if (p && p.startLine === d.sl && p.endLine === d.el && p.startChar === d.sch && p.endChar === d.ech) return
ctx.file.select(local.path, { startLine: d.sl, startChar: d.sch, endLine: d.el, endChar: d.ech })
}
const MOD = typeof navigator === "object" && /(Mac|iPod|iPhone|iPad)/.test(navigator.platform) ? "Meta" : "Control"
const onKeyDown = (e: KeyboardEvent) => {
// if (ctx.file.active()?.path !== local.path) return
const ae = document.activeElement as HTMLElement | undefined
const tag = (ae?.tagName || "").toLowerCase()
const inputFocused = !!ae && (tag === "input" || tag === "textarea" || ae.isContentEditable)
if (inputFocused) return
if (e.getModifierState(MOD) && e.key.toLowerCase() === "a") {
e.preventDefault()
if (!container) return
const element = container.querySelector("code") as HTMLElement | undefined
if (!element) return
const lines = Array.from(element.querySelectorAll(".line"))
if (!lines.length) return
const r = document.createRange()
const last = lines[lines.length - 1]
r.selectNodeContents(last)
const lastLen = r.toString().length
ctx.file.select(local.path, { startLine: 1, startChar: 0, endLine: lines.length, endChar: lastLen })
}
}
container.addEventListener("scroll", onScroll)
document.addEventListener("selectionchange", onSelectionChange)
document.addEventListener("keydown", onKeyDown)
onCleanup(() => {
container?.removeEventListener("scroll", onScroll)
document.removeEventListener("selectionchange", onSelectionChange)
document.removeEventListener("keydown", onKeyDown)
})
})
// Restore scroll position from store when content is ready
createEffect(async () => {
const content = html()
if (!container || !content) return
const top = (await ctx.file.node(local.path))?.scrollTop
if (top !== undefined && container.scrollTop !== top) container.scrollTop = top
})
// Sync selection from store -> DOM
createEffect(async () => {
const content = html()
if (!container || !content) return
// if (ctx.file.active()?.path !== local.path) return
const codeEl = container.querySelector("code") as HTMLElement | undefined
if (!codeEl) return
const target = (await ctx.file.node(local.path))?.selection
const current = getSelectionInContainer(container)
const sel = window.getSelection()
if (!sel) return
if (!target) {
if (current) {
isProgrammaticSelection = true
sel.removeAllRanges()
queueMicrotask(() => {
isProgrammaticSelection = false
})
}
return
}
const matches = !!(
current &&
current.sl === target.startLine &&
current.sch === target.startChar &&
current.el === target.endLine &&
current.ech === target.endChar
)
if (matches) return
const lines = Array.from(codeEl.querySelectorAll(".line"))
if (lines.length === 0) return
let sIdx = Math.max(0, target.startLine - 1)
let eIdx = Math.max(0, target.endLine - 1)
let sChar = Math.max(0, target.startChar || 0)
let eChar = Math.max(0, target.endChar || 0)
if (sIdx > eIdx || (sIdx === eIdx && sChar > eChar)) {
const ti = sIdx
sIdx = eIdx
eIdx = ti
const tc = sChar
sChar = eChar
eChar = tc
}
if (eChar === 0 && eIdx > sIdx) {
eIdx = eIdx - 1
eChar = Number.POSITIVE_INFINITY
}
if (sIdx >= lines.length) return
if (eIdx >= lines.length) eIdx = lines.length - 1
const s = getNodeOffsetInLine(lines[sIdx], sChar) ?? { node: lines[sIdx], offset: 0 }
const e = getNodeOffsetInLine(lines[eIdx], eChar) ?? { node: lines[eIdx], offset: lines[eIdx].childNodes.length }
const range = document.createRange()
range.setStart(s.node, s.offset)
range.setEnd(e.node, e.offset)
isProgrammaticSelection = true
sel.removeAllRanges()
sel.addRange(range)
queueMicrotask(() => {
isProgrammaticSelection = false
})
})
// Build/toggle split layout and apply folding (both unified and split)
createEffect(() => {
const content = html()
if (!container || !content) return
const view = ctx.file.view(local.path)
const pres = Array.from(container.querySelectorAll<HTMLPreElement>("pre"))
if (pres.length === 0) return
const originalPre = pres[0]
const split = container.querySelector<HTMLElement>(".diff-split")
if (view === "diff-split") {
applySplitDiff(container)
const next = container.querySelector<HTMLElement>(".diff-split")
if (next) next.style.display = ""
originalPre.style.display = "none"
} else {
if (split) split.style.display = "none"
originalPre.style.display = ""
}
const expanded = ctx.file.folded(local.path)
if (view === "diff-split") {
const left = container.querySelector<HTMLElement>(".diff-split pre:nth-child(1) code")
const right = container.querySelector<HTMLElement>(".diff-split pre:nth-child(2) code")
if (left)
applyDiffFolding(left, 3, { expanded, onExpand: (key) => ctx.file.unfold(local.path, key), side: "left" })
if (right)
applyDiffFolding(right, 3, { expanded, onExpand: (key) => ctx.file.unfold(local.path, key), side: "right" })
} else {
const code = container.querySelector<HTMLElement>("pre code")
if (code)
applyDiffFolding(code, 3, {
expanded,
onExpand: (key) => ctx.file.unfold(local.path, key),
})
}
})
// Highlight groups + scroll coupling
const clearHighlights = () => {
if (!container) return
container.querySelectorAll<HTMLElement>(".diff-selected").forEach((el) => el.classList.remove("diff-selected"))
}
const applyHighlight = (idx: number, scroll?: boolean) => {
if (!container) return
const view = ctx.file.view(local.path)
if (view === "raw") return
clearHighlights()
const nodes: HTMLElement[] = []
if (view === "diff-split") {
const left = container.querySelector<HTMLElement>(".diff-split pre:nth-child(1) code")
const right = container.querySelector<HTMLElement>(".diff-split pre:nth-child(2) code")
if (left)
nodes.push(...Array.from(left.querySelectorAll<HTMLElement>(`[data-chgrp="${idx}"][data-diff="remove"]`)))
if (right)
nodes.push(...Array.from(right.querySelectorAll<HTMLElement>(`[data-chgrp="${idx}"][data-diff="add"]`)))
} else {
const code = container.querySelector<HTMLElement>("pre code")
if (code) nodes.push(...Array.from(code.querySelectorAll<HTMLElement>(`[data-chgrp="${idx}"]`)))
}
for (const n of nodes) n.classList.add("diff-selected")
if (scroll && nodes.length) nodes[0].scrollIntoView({ block: "center", behavior: "smooth" })
}
const countGroups = () => {
if (!container) return 0
const code = container.querySelector<HTMLElement>("pre code")
if (!code) return 0
const set = new Set<string>()
for (const el of Array.from(code.querySelectorAll<HTMLElement>(".diff-line[data-chgrp]"))) {
const v = el.getAttribute("data-chgrp")
if (v != undefined) set.add(v)
}
return set.size
}
let lastIdx: number | undefined = undefined
let lastView: string | undefined
let lastContent: string | undefined
let lastRawIdx: number | undefined = undefined
createEffect(() => {
const content = html()
if (!container || !content) return
const view = ctx.file.view(local.path)
const raw = ctx.file.changeIndex(local.path)
if (raw === undefined) return
const total = countGroups()
if (total <= 0) return
const next = ((raw % total) + total) % total
const navigated = lastRawIdx !== undefined && lastRawIdx !== raw
if (next !== raw) {
ctx.file.setChangeIndex(local.path, next)
applyHighlight(next, true)
} else {
if (lastView !== view || lastContent !== content) applyHighlight(next)
if ((lastIdx !== undefined && lastIdx !== next) || navigated) applyHighlight(next, true)
}
lastRawIdx = raw
lastIdx = next
lastView = view
lastContent = content
})
return (
<div
ref={(el) => {
container = el
}}
innerHTML={html()}
class="
font-mono text-xs tracking-wide overflow-y-auto h-full
[&]:[counter-reset:line]
[&_pre]:focus-visible:outline-none
[&_pre]:overflow-x-auto [&_pre]:no-scrollbar
[&_code]:min-w-full [&_code]:inline-block
[&_.tab]:relative
[&_.tab::before]:content['⇥']
[&_.tab::before]:absolute
[&_.tab::before]:opacity-0
[&_.space]:relative
[&_.space::before]:content-['·']
[&_.space::before]:absolute
[&_.space::before]:opacity-0
[&_.line]:inline-block [&_.line]:w-full
[&_.line]:hover:bg-background-element
[&_.line::before]:sticky [&_.line::before]:left-0
[&_.line::before]:w-12 [&_.line::before]:pr-4
[&_.line::before]:z-10
[&_.line::before]:bg-background-panel
[&_.line::before]:text-text-muted/60
[&_.line::before]:text-right [&_.line::before]:inline-block
[&_.line::before]:select-none
[&_.line::before]:[counter-increment:line]
[&_.line::before]:content-[counter(line)]
[&_.line-number-highlight]:bg-accent/20
[&_.line-number-highlight::before]:bg-accent/40!
[&_.line-number-highlight::before]:text-background-panel!
[&_code.code-diff_.line::before]:content-['']
[&_code.code-diff_.line::before]:w-0
[&_code.code-diff_.line::before]:pr-0
[&_.diff-split_code.code-diff::before]:w-10
[&_.diff-split_.diff-newln]:left-0
[&_.diff-oldln]:sticky [&_.diff-oldln]:left-0
[&_.diff-oldln]:w-10 [&_.diff-oldln]:pr-2
[&_.diff-oldln]:z-40
[&_.diff-oldln]:text-text-muted/60
[&_.diff-oldln]:text-right [&_.diff-oldln]:inline-block
[&_.diff-oldln]:select-none
[&_.diff-oldln]:bg-background-panel
[&_.diff-newln]:sticky [&_.diff-newln]:left-10
[&_.diff-newln]:w-10 [&_.diff-newln]:pr-2
[&_.diff-newln]:z-40
[&_.diff-newln]:text-text-muted/60
[&_.diff-newln]:text-right [&_.diff-newln]:inline-block
[&_.diff-newln]:select-none
[&_.diff-newln]:bg-background-panel
[&_.diff-add]:bg-success/20!
[&_.diff-add.diff-selected]:bg-success/50!
[&_.diff-add_.diff-oldln]:bg-success!
[&_.diff-add_.diff-oldln]:text-background-panel!
[&_.diff-add_.diff-newln]:bg-success!
[&_.diff-add_.diff-newln]:text-background-panel!
[&_.diff-remove]:bg-error/20!
[&_.diff-remove.diff-selected]:bg-error/50!
[&_.diff-remove_.diff-newln]:bg-error!
[&_.diff-remove_.diff-newln]:text-background-panel!
[&_.diff-remove_.diff-oldln]:bg-error!
[&_.diff-remove_.diff-oldln]:text-background-panel!
[&_.diff-sign]:inline-block [&_.diff-sign]:px-2 [&_.diff-sign]:select-none
[&_.diff-blank]:bg-background-element
[&_.diff-blank_.diff-oldln]:bg-background-element
[&_.diff-blank_.diff-newln]:bg-background-element
[&_.diff-collapsed]:block! [&_.diff-collapsed]:w-full [&_.diff-collapsed]:relative
[&_.diff-collapsed]:select-none
[&_.diff-collapsed]:bg-info/20 [&_.diff-collapsed]:hover:bg-info/40!
[&_.diff-collapsed]:text-info/80 [&_.diff-collapsed]:hover:text-info
[&_.diff-collapsed]:text-xs
[&_.diff-collapsed_.diff-oldln]:bg-info!
[&_.diff-collapsed_.diff-newln]:bg-info!
"
classList={{
...(local.classList || {}),
[local.class ?? ""]: !!local.class,
}}
{...others}
></div>
)
}
function transformerUnifiedDiff(): ShikiTransformer {
const kinds = new Map<number, string>()
const meta = new Map<number, { old?: number; new?: number; sign?: string }>()
let isDiff = false
return {
name: "unified-diff",
preprocess(input) {
kinds.clear()
meta.clear()
isDiff = false
const ls = input.split(/\r?\n/)
const out: Array<string> = []
let oldNo = 0
let newNo = 0
let inHunk = false
for (let i = 0; i < ls.length; i++) {
const s = ls[i]
const m = s.match(/^@@\s*-(\d+)(?:,(\d+))?\s+\+(\d+)(?:,(\d+))?\s*@@/)
if (m) {
isDiff = true
inHunk = true
oldNo = parseInt(m[1], 10)
newNo = parseInt(m[3], 10)
continue
}
if (
/^diff --git /.test(s) ||
/^Index: /.test(s) ||
/^--- /.test(s) ||
/^\+\+\+ /.test(s) ||
/^[=]{3,}$/.test(s) ||
/^\*{3,}$/.test(s) ||
/^\\ No newline at end of file$/.test(s)
) {
isDiff = true
continue
}
if (!inHunk) {
out.push(s)
continue
}
if (/^\+/.test(s)) {
out.push(s)
const ln = out.length
kinds.set(ln, "add")
meta.set(ln, { new: newNo, sign: "+" })
newNo++
continue
}
if (/^-/.test(s)) {
out.push(s)
const ln = out.length
kinds.set(ln, "remove")
meta.set(ln, { old: oldNo, sign: "-" })
oldNo++
continue
}
if (/^ /.test(s)) {
out.push(s)
const ln = out.length
kinds.set(ln, "context")
meta.set(ln, { old: oldNo, new: newNo })
oldNo++
newNo++
continue
}
// fallback in hunks
out.push(s)
}
return out.join("\n").trimEnd()
},
code(node) {
if (isDiff) this.addClassToHast(node, "code-diff")
},
pre(node) {
if (isDiff) this.addClassToHast(node, "code-diff")
},
line(node, line) {
if (!isDiff) return
const kind = kinds.get(line)
if (!kind) return
const m = meta.get(line) || {}
this.addClassToHast(node, "diff-line")
this.addClassToHast(node, `diff-${kind}`)
node.properties = node.properties || {}
;(node.properties as any)["data-diff"] = kind
if (m.old != undefined) (node.properties as any)["data-old"] = String(m.old)
if (m.new != undefined) (node.properties as any)["data-new"] = String(m.new)
const oldSpan = {
type: "element",
tagName: "span",
properties: { className: ["diff-oldln"] },
children: [{ type: "text", value: m.old != undefined ? String(m.old) : " " }],
}
const newSpan = {
type: "element",
tagName: "span",
properties: { className: ["diff-newln"] },
children: [{ type: "text", value: m.new != undefined ? String(m.new) : " " }],
}
if (kind === "add" || kind === "remove" || kind === "context") {
const first = (node.children && (node.children as any[])[0]) as any
if (first && first.type === "element" && first.children && first.children.length > 0) {
const t = first.children[0]
if (t && t.type === "text" && typeof t.value === "string" && t.value.length > 0) {
const ch = t.value[0]
if (ch === "+" || ch === "-" || ch === " ") t.value = t.value.slice(1)
}
}
}
const signSpan = {
type: "element",
tagName: "span",
properties: { className: ["diff-sign"] },
children: [{ type: "text", value: (m as any).sign || " " }],
}
// @ts-expect-error hast typing across versions
node.children = [oldSpan, newSpan, signSpan, ...(node.children || [])]
},
}
}
function transformerDiffGroups(): ShikiTransformer {
let group = -1
let inGroup = false
return {
name: "diff-groups",
pre() {
group = -1
inGroup = false
},
line(node) {
const props = (node.properties || {}) as any
const kind = props["data-diff"] as string | undefined
if (kind === "add" || kind === "remove") {
if (!inGroup) {
group += 1
inGroup = true
}
;(node.properties as any)["data-chgrp"] = String(group)
} else {
inGroup = false
}
},
}
}
function applyDiffFolding(
root: HTMLElement,
context = 3,
options?: { expanded?: string[]; onExpand?: (key: string) => void; side?: "left" | "right" },
) {
if (!root.classList.contains("code-diff")) return
// Cleanup: unwrap previous collapsed blocks and remove toggles
const blocks = Array.from(root.querySelectorAll<HTMLElement>(".diff-collapsed-block"))
for (const block of blocks) {
const p = block.parentNode
if (!p) {
block.remove()
continue
}
while (block.firstChild) p.insertBefore(block.firstChild, block)
block.remove()
}
const toggles = Array.from(root.querySelectorAll<HTMLElement>(".diff-collapsed"))
for (const t of toggles) t.remove()
const lines = Array.from(root.querySelectorAll<HTMLElement>(".diff-line"))
if (lines.length === 0) return
const n = lines.length
const isChange = lines.map((l) => l.dataset["diff"] === "add" || l.dataset["diff"] === "remove")
const isContext = lines.map((l) => l.dataset["diff"] === "context")
if (!isChange.some(Boolean)) return
const visible = new Array(n).fill(false) as boolean[]
for (let i = 0; i < n; i++) if (isChange[i]) visible[i] = true
for (let i = 0; i < n; i++) {
if (isChange[i]) {
const s = Math.max(0, i - context)
const e = Math.min(n - 1, i + context)
for (let j = s; j <= e; j++) if (isContext[j]) visible[j] = true
}
}
type Range = { start: number; end: number }
const ranges: Range[] = []
let i = 0
while (i < n) {
if (!visible[i] && isContext[i]) {
let j = i
while (j + 1 < n && !visible[j + 1] && isContext[j + 1]) j++
ranges.push({ start: i, end: j })
i = j + 1
} else {
i++
}
}
for (const r of ranges) {
const start = lines[r.start]
const end = lines[r.end]
const count = r.end - r.start + 1
const minCollapse = 20
if (count < minCollapse) {
continue
}
// Wrap the entire collapsed chunk (including trailing newline) so it takes no space
const block = document.createElement("span")
block.className = "diff-collapsed-block"
start.parentElement?.insertBefore(block, start)
let cur: Node | undefined = start
while (cur) {
const next: Node | undefined = cur.nextSibling || undefined
block.appendChild(cur)
if (cur === end) {
// Also move the newline after the last line into the block
if (next && next.nodeType === Node.TEXT_NODE && (next.textContent || "").startsWith("\n")) {
block.appendChild(next)
}
break
}
cur = next
}
block.style.display = "none"
const row = document.createElement("span")
row.className = "line diff-collapsed"
row.setAttribute("data-kind", "collapsed")
row.setAttribute("data-count", String(count))
row.setAttribute("tabindex", "0")
row.setAttribute("role", "button")
const oldln = document.createElement("span")
oldln.className = "diff-oldln"
oldln.textContent = " "
const newln = document.createElement("span")
newln.className = "diff-newln"
newln.textContent = " "
const sign = document.createElement("span")
sign.className = "diff-sign"
sign.textContent = "…"
const label = document.createElement("span")
label.textContent = `show ${count} unchanged line${count > 1 ? "s" : ""}`
const key = `o${start.dataset["old"] || ""}-${end.dataset["old"] || ""}:n${start.dataset["new"] || ""}-${end.dataset["new"] || ""}`
const show = (record = true) => {
if (record) options?.onExpand?.(key)
const p = block.parentNode
if (p) {
while (block.firstChild) p.insertBefore(block.firstChild, block)
block.remove()
}
row.remove()
}
row.addEventListener("click", () => show(true))
row.addEventListener("keydown", (ev) => {
if (ev.key === "Enter" || ev.key === " ") {
ev.preventDefault()
show(true)
}
})
block.parentElement?.insertBefore(row, block)
if (!options?.side || options.side === "left") row.appendChild(oldln)
if (!options?.side || options.side === "right") row.appendChild(newln)
row.appendChild(sign)
row.appendChild(label)
if (options?.expanded && options.expanded.includes(key)) {
show(false)
}
}
}
function applySplitDiff(container: HTMLElement) {
const pres = Array.from(container.querySelectorAll<HTMLPreElement>("pre"))
if (pres.length === 0) return
const originalPre = pres[0]
const originalCode = originalPre.querySelector("code") as HTMLElement | undefined
if (!originalCode || !originalCode.classList.contains("code-diff")) return
// Rebuild split each time to match current content
const existing = container.querySelector<HTMLElement>(".diff-split")
if (existing) existing.remove()
const grid = document.createElement("div")
grid.className = "diff-split grid grid-cols-2 gap-x-6"
const makeColumn = () => {
const pre = document.createElement("pre")
pre.className = originalPre.className
const code = document.createElement("code")
code.className = originalCode.className
pre.appendChild(code)
return { pre, code }
}
const left = makeColumn()
const right = makeColumn()
// Helpers
const cloneSide = (line: HTMLElement, side: "old" | "new"): HTMLElement => {
const clone = line.cloneNode(true) as HTMLElement
const oldln = clone.querySelector(".diff-oldln")
const newln = clone.querySelector(".diff-newln")
if (side === "old") {
if (newln) newln.remove()
} else {
if (oldln) oldln.remove()
}
return clone
}
const blankLine = (side: "old" | "new", kind: "add" | "remove"): HTMLElement => {
const span = document.createElement("span")
span.className = "line diff-line diff-blank"
span.setAttribute("data-diff", kind)
const ln = document.createElement("span")
ln.className = side === "old" ? "diff-oldln" : "diff-newln"
ln.textContent = " "
span.appendChild(ln)
return span
}
const lines = Array.from(originalCode.querySelectorAll<HTMLElement>(".diff-line"))
let i = 0
while (i < lines.length) {
const cur = lines[i]
const kind = cur.dataset["diff"]
if (kind === "context") {
left.code.appendChild(cloneSide(cur, "old"))
left.code.appendChild(document.createTextNode("\n"))
right.code.appendChild(cloneSide(cur, "new"))
right.code.appendChild(document.createTextNode("\n"))
i++
continue
}
if (kind === "remove") {
// Batch consecutive removes and following adds, then pair
const removes: HTMLElement[] = []
const adds: HTMLElement[] = []
let j = i
while (j < lines.length && lines[j].dataset["diff"] === "remove") {
removes.push(lines[j])
j++
}
let k = j
while (k < lines.length && lines[k].dataset["diff"] === "add") {
adds.push(lines[k])
k++
}
const pairs = Math.min(removes.length, adds.length)
for (let p = 0; p < pairs; p++) {
left.code.appendChild(cloneSide(removes[p], "old"))
left.code.appendChild(document.createTextNode("\n"))
right.code.appendChild(cloneSide(adds[p], "new"))
right.code.appendChild(document.createTextNode("\n"))
}
for (let p = pairs; p < removes.length; p++) {
left.code.appendChild(cloneSide(removes[p], "old"))
left.code.appendChild(document.createTextNode("\n"))
right.code.appendChild(blankLine("new", "remove"))
right.code.appendChild(document.createTextNode("\n"))
}
for (let p = pairs; p < adds.length; p++) {
left.code.appendChild(blankLine("old", "add"))
left.code.appendChild(document.createTextNode("\n"))
right.code.appendChild(cloneSide(adds[p], "new"))
right.code.appendChild(document.createTextNode("\n"))
}
i = k
continue
}
if (kind === "add") {
// Run of adds not preceded by removes
const adds: HTMLElement[] = []
let j = i
while (j < lines.length && lines[j].dataset["diff"] === "add") {
adds.push(lines[j])
j++
}
for (let p = 0; p < adds.length; p++) {
left.code.appendChild(blankLine("old", "add"))
left.code.appendChild(document.createTextNode("\n"))
right.code.appendChild(cloneSide(adds[p], "new"))
right.code.appendChild(document.createTextNode("\n"))
}
i = j
continue
}
// Any other kind: mirror as context
left.code.appendChild(cloneSide(cur, "old"))
left.code.appendChild(document.createTextNode("\n"))
right.code.appendChild(cloneSide(cur, "new"))
right.code.appendChild(document.createTextNode("\n"))
i++
}
grid.appendChild(left.pre)
grid.appendChild(right.pre)
container.appendChild(grid)
}