309 lines
11 KiB
JavaScript
309 lines
11 KiB
JavaScript
import { app } from "/scripts/app.js";
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const STYLE_ID = "mrmth-script-line-numbers-unified";
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if (!window.__mrmthScriptInputUnifiedInit) {
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window.__mrmthScriptInputUnifiedInit = true;
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function ensureStyles() {
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if (document.getElementById(STYLE_ID)) return;
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const style = document.createElement("style");
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style.id = STYLE_ID;
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style.textContent = `
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.mrmth-editor {
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display: flex;
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align-items: stretch;
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width: 100%;
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min-height: 170px;
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border: 1px solid rgba(255,255,255,0.14);
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border-radius: 10px;
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overflow: hidden;
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background: rgba(0,0,0,0.18);
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}
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.mrmth-gutter {
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padding: 8px 10px;
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min-width: 44px;
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text-align: right;
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user-select: none;
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color: #9aa0a6;
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background: rgba(0,0,0,0.35);
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border-right: 1px solid rgba(255,255,255,0.12);
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font-family: monospace;
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font-size: 12px;
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line-height: 1.45;
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white-space: pre;
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box-sizing: border-box;
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overflow: hidden;
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}
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.mrmth-gutter-content {
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white-space: pre;
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will-change: transform;
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}
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.mrmth-editor-container {
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position: relative;
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flex: 1;
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min-width: 0;
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min-height: 170px;
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overflow: hidden;
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}
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.mrmth-script-textarea {
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display: block;
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width: 100% !important;
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height: 100% !important;
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min-height: 170px !important;
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margin: 0 !important;
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border: 0 !important;
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outline: none !important;
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resize: vertical !important;
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box-sizing: border-box !important;
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font-family: monospace !important;
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font-size: 12px !important;
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line-height: 1.45 !important;
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padding: 8px 10px !important;
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white-space: pre-wrap !important;
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overflow-wrap: anywhere !important;
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word-break: break-word !important;
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}
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.mrmth-measure {
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position: absolute;
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visibility: hidden;
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pointer-events: none;
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inset: 0 auto auto 0;
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white-space: pre-wrap;
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overflow-wrap: anywhere;
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word-break: break-word;
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box-sizing: border-box;
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height: auto;
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}
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`;
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document.head.appendChild(style);
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}
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function escapeHtml(value) {
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return value
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.replace(/&/g, "&")
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/"/g, """)
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.replace(/'/g, "'");
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}
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function hasNearbyScriptLabel(el) {
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const root = el.closest("div, section, article") ?? el.parentElement;
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if (!root) return false;
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const candidates = root.querySelectorAll("label, .label, .input-label, .property_name, .v-label, span, div");
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for (const n of candidates) {
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const t = (n.textContent || "").trim().toLowerCase();
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if (t === "script") return true;
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}
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return false;
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}
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function isLikelyScriptTextarea(el) {
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if (!(el instanceof HTMLTextAreaElement)) return false;
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if (el.dataset.mrmthEnhanced === "1") return false;
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const attrs = [
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el.name,
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el.id,
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el.getAttribute("data-name"),
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el.getAttribute("aria-label"),
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el.getAttribute("placeholder"),
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]
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.filter(Boolean)
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.join(" ")
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.toLowerCase();
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return attrs.includes("script") || hasNearbyScriptLabel(el);
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}
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function hideNearbyScriptLabels(textarea) {
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const root = textarea.closest("div, section, article") ?? textarea.parentElement;
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if (!root) return;
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const labels = root.querySelectorAll("label, .label, .input-label, .property_name, .v-label, span, div");
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for (const el of labels) {
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if (el.dataset.mrmthHiddenLabel === "1") continue;
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const t = (el.textContent || "").trim().toLowerCase();
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if (t === "script") {
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el.style.display = "none";
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el.dataset.mrmthHiddenLabel = "1";
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}
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}
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}
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function addBracketAutoClose(textarea) {
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const pairs = { "(": ")", "[": "]", "{": "}" };
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const opening = new Set(Object.keys(pairs));
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textarea.addEventListener("keydown", (e) => {
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if (!opening.has(e.key)) return;
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const start = textarea.selectionStart;
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const end = textarea.selectionEnd;
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if (start !== end) return;
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const nextChar = textarea.value[start] ?? "";
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const closing = pairs[e.key];
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if (/[a-zA-Z0-9_]/.test(nextChar) || nextChar === closing) return;
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e.preventDefault();
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textarea.value = `${textarea.value.slice(0, start)}${e.key}${closing}${textarea.value.slice(start)}`;
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textarea.selectionStart = textarea.selectionEnd = start + 1;
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textarea.dispatchEvent(new Event("input", { bubbles: true }));
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});
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}
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function getLineHeightPx(textarea) {
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const style = getComputedStyle(textarea);
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const lh = parseFloat(style.lineHeight);
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if (Number.isFinite(lh) && lh > 0) return lh;
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const probe = document.createElement("span");
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probe.textContent = "A";
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probe.style.position = "absolute";
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probe.style.visibility = "hidden";
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probe.style.fontFamily = style.fontFamily;
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probe.style.fontSize = style.fontSize;
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probe.style.fontWeight = style.fontWeight;
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probe.style.fontStyle = style.fontStyle;
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document.body.appendChild(probe);
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const h = probe.getBoundingClientRect().height || 16;
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probe.remove();
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return h;
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}
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function buildMeasureHtml(lines) {
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let html = "";
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for (let i = 0; i < lines.length; i++) {
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const line = lines[i] === "" ? " " : lines[i];
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html += `<span class="mrmth-ln-marker" data-ln="${i}"></span>${escapeHtml(line)}`;
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if (i < lines.length - 1) html += "\n";
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}
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return html;
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}
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function updateNumbersWrapped(textarea, gutterContent, measureEl, lineHeightPx) {
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const rawLines = textarea.value.split("\n");
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const lineCount = Math.max(1, rawLines.length);
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const scrollbarWidth = textarea.offsetWidth - textarea.clientWidth;
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const widthPx = Math.max(0, textarea.clientWidth - scrollbarWidth);
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const cs = getComputedStyle(textarea);
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measureEl.style.fontFamily = cs.fontFamily;
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measureEl.style.fontSize = cs.fontSize;
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measureEl.style.fontWeight = cs.fontWeight;
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measureEl.style.fontStyle = cs.fontStyle;
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measureEl.style.lineHeight = cs.lineHeight;
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measureEl.style.padding = cs.padding;
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measureEl.style.width = `${widthPx}px`;
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measureEl.innerHTML = buildMeasureHtml(rawLines);
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const totalHeight = measureEl.offsetHeight;
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const gutterLines = [];
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for (let i = 0; i < lineCount; i++) {
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const marker = measureEl.querySelector(`[data-ln="${i}"]`);
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const nextMarker = i < lineCount - 1 ? measureEl.querySelector(`[data-ln="${i + 1}"]`) : null;
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const y0 = marker ? marker.offsetTop : i * lineHeightPx;
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const y1 = nextMarker ? nextMarker.offsetTop : totalHeight;
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const visualLines = Math.max(1, Math.round((y1 - y0) / lineHeightPx));
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gutterLines.push(String(i + 1));
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for (let j = 1; j < visualLines; j++) gutterLines.push(" ");
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}
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gutterContent.textContent = gutterLines.join("\n");
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gutterContent.style.transform = `translateY(${-textarea.scrollTop}px)`;
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}
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function attachToTextarea(textarea) {
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if (!isLikelyScriptTextarea(textarea)) return;
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if (textarea.closest(".mrmth-editor")) {
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textarea.dataset.mrmthEnhanced = "1";
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return;
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}
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const parent = textarea.parentElement;
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if (!parent) return;
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ensureStyles();
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hideNearbyScriptLabels(textarea);
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const wrapper = document.createElement("div");
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wrapper.className = "mrmth-editor";
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const gutter = document.createElement("div");
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gutter.className = "mrmth-gutter";
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const gutterContent = document.createElement("div");
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gutterContent.className = "mrmth-gutter-content";
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gutter.appendChild(gutterContent);
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const editorContainer = document.createElement("div");
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editorContainer.className = "mrmth-editor-container";
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const measureEl = document.createElement("pre");
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measureEl.className = "mrmth-measure";
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parent.replaceChild(wrapper, textarea);
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wrapper.appendChild(gutter);
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wrapper.appendChild(editorContainer);
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editorContainer.appendChild(measureEl);
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editorContainer.appendChild(textarea);
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textarea.classList.add("mrmth-script-textarea");
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textarea.dataset.mrmthEnhanced = "1";
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textarea.spellcheck = false;
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textarea.autocapitalize = "off";
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textarea.autocomplete = "off";
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textarea.autocorrect = "off";
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addBracketAutoClose(textarea);
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const lineHeightPx = getLineHeightPx(textarea);
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const refresh = () => updateNumbersWrapped(textarea, gutterContent, measureEl, lineHeightPx);
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textarea.addEventListener("input", refresh);
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textarea.addEventListener("scroll", refresh);
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if (window.ResizeObserver) {
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const ro = new ResizeObserver(refresh);
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ro.observe(textarea);
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}
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requestAnimationFrame(refresh);
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}
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function scan(root = document) {
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root.querySelectorAll("textarea").forEach(attachToTextarea);
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}
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app.registerExtension({
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name: "mrmth.ScriptTextInput.Unified",
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async setup() {
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scan(document);
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const observer = new MutationObserver((mutations) => {
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for (const m of mutations) {
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for (const node of m.addedNodes) {
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if (!(node instanceof Element)) continue;
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if (node.matches?.("textarea")) attachToTextarea(node);
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scan(node);
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}
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}
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});
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observer.observe(document.body, { childList: true, subtree: true });
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},
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});
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} |