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* Add line highlighting. * Update cache for CSS
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| let selections = {}; | ||
|
|
||
| function parseLines() { | ||
| let params = new URLSearchParams(document.location.search); | ||
| let param = params.get("lines"); | ||
|
|
||
| if (!param) { | ||
| return | ||
| } | ||
|
|
||
| const regex = /F(\d+)-L(\d+)(?:-L(\d+))?/g; | ||
| let match; | ||
| while ((match = regex.exec(param)) !== null) { | ||
| let file = parseInt(match[1]); | ||
| let start = parseInt(match[2]); | ||
| let end = match[3] ? parseInt(match[3]) : start; | ||
|
|
||
| if (isNaN(file) || isNaN(start) || isNaN(end)) { | ||
| continue; | ||
| } | ||
|
|
||
| highlightLine(null, file - 1, start); | ||
| if (start !== end) { | ||
| highlightLine(null, file - 1, end); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| parseLines(); | ||
|
|
||
| function removeSelected(lines) { | ||
| lines.forEach(line => { | ||
| let child = line.querySelector("td.lineSelected"); | ||
| if (child) { | ||
| line.removeChild(child); | ||
| line.classList.remove("lineNumRowSelected"); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| function updateParams() { | ||
| const url = new URL(window.location); | ||
| let param = Object.entries(selections).map(([key, value]) => { | ||
| let end = value.end !== value.start ? `-L${value.end}_` : ''; | ||
| return `F${parseInt(key) + 1}-L${value.start}${end}`; | ||
| }).join(''); | ||
|
|
||
| url.searchParams.set("lines", param); | ||
| url.searchParams.delete("pastePassword"); | ||
|
|
||
| history.pushState(null, '', url); | ||
| } | ||
|
|
||
| function replaceSelected(lines, idIndex, index, start, end) { | ||
| let newLines = lines.slice(start, end); | ||
| removeSelected(newLines); | ||
|
|
||
| let line = lines[index - 1]; | ||
| line.insertAdjacentHTML("beforeend", `<td class="lineSelected"></td>`); | ||
| line.classList.add("lineNumRowSelected"); | ||
|
|
||
| selections[idIndex] = { "start": index, "end": index }; | ||
| updateParams(); | ||
| } | ||
|
|
||
| function addLines(lines, idIndex, start, end) { | ||
| let newLines = lines.slice(start - 1, end); | ||
| newLines.forEach(line => { | ||
| if (!line.querySelector("td.lineSelected")) { | ||
| line.insertAdjacentHTML("beforeend", `<td class="lineSelected"></td>`); | ||
| line.classList.add("lineNumRowSelected"); | ||
| } | ||
| }); | ||
|
|
||
| selections[idIndex] = { "start": start, "end": end }; | ||
| updateParams(); | ||
| } | ||
|
|
||
| function highlightLine(event, idI, selected) { | ||
| let idIndex = parseInt(idI); | ||
| let id = `__paste_c_${idIndex}`; | ||
| let block = document.getElementById(id); | ||
|
|
||
| if (!block) { | ||
| return; | ||
| } | ||
|
|
||
| let lines = Array.from(block.querySelectorAll("tbody>tr")); | ||
| let line = Math.min(parseInt(selected), lines.length); | ||
|
|
||
| let current = selections[idIndex]; | ||
| if (!current) { | ||
| let selectedLine = lines[line - 1]; | ||
| selectedLine.insertAdjacentHTML("beforeend", `<td class="lineSelected"></td>`); | ||
| selectedLine.classList.add("lineNumRowSelected"); | ||
|
|
||
| selections[idIndex] = { "start": line, "end": line }; | ||
| updateParams(); | ||
| return; | ||
| } | ||
|
|
||
| let { start, end } = current; | ||
|
|
||
| if (event && !event.shiftKey) { | ||
| replaceSelected(lines, idIndex, line, start - 1, end); | ||
| return; | ||
| } | ||
|
|
||
| if (!event || event.shiftKey) { | ||
| if (line < start) { | ||
| removeSelected(lines.slice(start, end)); | ||
| addLines(lines, idIndex, line, start); | ||
| } else if (line <= end) { | ||
| replaceSelected(lines, idIndex, line, start - 1, end); | ||
| } else { | ||
| addLines(lines, idIndex, start, line); | ||
| } | ||
| } | ||
| } |
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