Jeffrey Smith
8580e1d93e
Co-authored-by: Jeffrey Smith <jasafpro@gmail.com> Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>
780 lines
29 KiB
JavaScript
780 lines
29 KiB
JavaScript
// ==========================================
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// Mermaid Diagram Renderer — Browser Extension
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// ==========================================
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// Renders ```mermaid code blocks as interactive SVG diagrams.
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// Features: viewBox-based zoom/pan, context-aware expand (fullscreen
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// or side-panel pop-out), SVG/PNG export, source copy.
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// Loads mermaid.js dynamically on first use.
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//
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// Uses ctx.ui primitives from the host app for toast notifications,
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// side-panel preview, theme detection, and mobile awareness.
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// ==========================================
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Extensions.register({
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id: 'mermaid-renderer',
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_mermaidReady: false,
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_mermaidLoading: null,
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_ctx: null,
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async init(ctx) {
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const self = this;
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this._ctx = ctx;
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this._injectStyles();
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// ── Block renderer: match ```mermaid ──
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ctx.renderers.register('mermaid', {
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type: 'block',
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pattern: 'mermaid',
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priority: 10,
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render(lang, code, container) {
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const id = 'mmd-' + Math.random().toString(36).slice(2, 9);
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container.innerHTML = `
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<div class="mermaid-block" data-mermaid-id="${id}">
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<div class="mermaid-toolbar">
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<span class="mermaid-title">\u{1f4ca} Diagram</span>
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<span class="mermaid-zoom-label" data-zoom-label="${id}">100%</span>
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<div class="mermaid-toolbar-btns">
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<button class="mmd-btn" data-action="zoom-in" data-target="${id}" title="Zoom in">+</button>
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<button class="mmd-btn" data-action="zoom-out" data-target="${id}" title="Zoom out">\u2212</button>
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<button class="mmd-btn" data-action="zoom-fit" data-target="${id}" title="Fit to view">\u22a1</button>
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<button class="mmd-btn" data-action="zoom-reset" data-target="${id}" title="Reset zoom">1:1</button>
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<span class="mmd-sep"></span>
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<button class="mmd-btn" data-action="expand" data-target="${id}" title="Expand">\u26f6</button>
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<span class="mmd-sep"></span>
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<button class="mmd-btn" data-action="export-svg" data-target="${id}" title="Download SVG">SVG</button>
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<button class="mmd-btn" data-action="export-png" data-target="${id}" title="Download PNG">PNG</button>
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</div>
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</div>
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<div class="mermaid-viewport" data-viewport="${id}">
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<div class="mermaid-diagram" data-mermaid-src="${encodeURIComponent(code.trim())}" data-diagram="${id}">
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<div class="mermaid-loading">
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<span class="mermaid-spinner"></span> Rendering diagram\u2026
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</div>
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</div>
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</div>
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<details class="mermaid-source">
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<summary>
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<span>\u{1f4cb} View source</span>
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<button class="mmd-btn mmd-copy-src" data-action="copy-src" data-target="${id}" title="Copy source" onclick="event.stopPropagation()">Copy</button>
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</summary>
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<pre><code class="language-mermaid" data-source="${id}">${self._escapeHtml(code.trim())}</code></pre>
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</details>
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</div>
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`;
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}
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});
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// ── Post renderer: render diagrams + wire interactivity ──
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ctx.renderers.register('mermaid-post', {
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type: 'post',
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priority: 10,
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render(container) {
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const diagrams = container.querySelectorAll('.mermaid-diagram[data-mermaid-src]');
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if (diagrams.length === 0) return;
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diagrams.forEach(el => {
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if (el.dataset.rendered) return;
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el.dataset.rendered = 'pending';
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self._renderDiagram(el);
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});
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self._wireToolbar(container);
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}
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});
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this._loadMermaid();
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},
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// ── ViewBox Zoom/Pan State ──────────────
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_getState(id) {
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const vp = document.querySelector(`[data-viewport="${id}"]`);
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if (!vp) return null;
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if (!vp._mmdState) {
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vp._mmdState = {
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natX: 0, natY: 0, natW: 0, natH: 0,
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vbX: 0, vbY: 0, vbW: 0, vbH: 0,
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dragging: false, startX: 0, startY: 0,
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startVbX: 0, startVbY: 0,
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ready: false,
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};
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}
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return vp._mmdState;
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},
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_initState(id) {
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const state = this._getState(id);
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if (!state) return;
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const svg = document.querySelector(`[data-diagram="${id}"] svg`);
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if (!svg) return;
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const vb = svg.getAttribute('viewBox');
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if (!vb) {
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const bbox = svg.getBBox();
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state.natX = bbox.x;
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state.natY = bbox.y;
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state.natW = bbox.width;
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state.natH = bbox.height;
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} else {
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const parts = vb.trim().split(/[\s,]+/).map(Number);
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state.natX = parts[0] || 0;
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state.natY = parts[1] || 0;
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state.natW = parts[2] || 0;
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state.natH = parts[3] || 0;
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}
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state.vbX = state.natX;
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state.vbY = state.natY;
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state.vbW = state.natW;
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state.vbH = state.natH;
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state.ready = true;
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this._applyViewBox(id);
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},
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_applyViewBox(id) {
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const state = this._getState(id);
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if (!state || !state.ready) return;
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const svg = document.querySelector(`[data-diagram="${id}"] svg`);
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if (!svg) return;
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svg.setAttribute('viewBox', `${state.vbX} ${state.vbY} ${state.vbW} ${state.vbH}`);
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const zoomPct = Math.round((state.natW / state.vbW) * 100);
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const label = document.querySelector(`[data-zoom-label="${id}"]`);
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if (label) label.textContent = zoomPct + '%';
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},
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_zoom(id, factor) {
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const state = this._getState(id);
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if (!state || !state.ready) return;
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const scale = 1 / (1 + factor);
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const newW = state.vbW * scale;
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const newH = state.vbH * scale;
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const minW = state.natW / 20;
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const maxW = state.natW * 2;
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if (newW < minW || newW > maxW) return;
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const cx = state.vbX + state.vbW / 2;
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const cy = state.vbY + state.vbH / 2;
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state.vbW = newW;
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state.vbH = newH;
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state.vbX = cx - newW / 2;
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state.vbY = cy - newH / 2;
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this._applyViewBox(id);
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},
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_zoomAt(id, factor, clientX, clientY) {
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const state = this._getState(id);
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if (!state || !state.ready) return;
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const svg = document.querySelector(`[data-diagram="${id}"] svg`);
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if (!svg) return;
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const svgRect = svg.getBoundingClientRect();
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if (svgRect.width === 0 || svgRect.height === 0) return;
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const fx = (clientX - svgRect.left) / svgRect.width;
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const fy = (clientY - svgRect.top) / svgRect.height;
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const pointX = state.vbX + fx * state.vbW;
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const pointY = state.vbY + fy * state.vbH;
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const scale = 1 / (1 + factor);
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const newW = state.vbW * scale;
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const newH = state.vbH * scale;
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const minW = state.natW / 20;
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const maxW = state.natW * 2;
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if (newW < minW || newW > maxW) return;
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state.vbW = newW;
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state.vbH = newH;
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state.vbX = pointX - fx * newW;
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state.vbY = pointY - fy * newH;
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this._applyViewBox(id);
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},
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_zoomReset(id) {
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const state = this._getState(id);
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if (!state || !state.ready) return;
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state.vbX = state.natX;
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state.vbY = state.natY;
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state.vbW = state.natW;
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state.vbH = state.natH;
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this._applyViewBox(id);
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},
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_zoomFit(id) {
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const state = this._getState(id);
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if (!state || !state.ready) return;
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const vp = document.querySelector(`[data-viewport="${id}"]`);
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if (!vp) return;
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const vpRect = vp.getBoundingClientRect();
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if (vpRect.width === 0 || vpRect.height === 0) return;
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const vpAspect = vpRect.width / vpRect.height;
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const natAspect = state.natW / state.natH;
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if (vpAspect > natAspect) {
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const newW = state.natH * vpAspect;
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state.vbX = state.natX - (newW - state.natW) / 2;
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state.vbY = state.natY;
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state.vbW = newW;
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state.vbH = state.natH;
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} else {
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const newH = state.natW / vpAspect;
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state.vbX = state.natX;
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state.vbY = state.natY - (newH - state.natH) / 2;
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state.vbW = state.natW;
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state.vbH = newH;
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}
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this._applyViewBox(id);
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},
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// ── Expand (context-aware) ──────────────
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// Side panel open → pop out into it (replaces current content).
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// Side panel closed → fullscreen overlay.
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_expand(id) {
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if (this._ctx.ui.isPanelOpen()) {
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this._popOutToPanel(id);
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} else {
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this._toggleFullscreen(id);
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}
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},
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// ── Fullscreen ──────────────────────────
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_toggleFullscreen(id) {
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const block = document.querySelector(`[data-mermaid-id="${id}"]`);
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if (!block) return;
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const isFS = block.classList.toggle('mermaid-fullscreen');
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if (isFS) {
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document.body.style.overflow = 'hidden';
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// Close button overlay (always visible — critical for mobile)
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const closeBtn = document.createElement('button');
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closeBtn.className = 'mmd-fullscreen-close';
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closeBtn.innerHTML = '\u2715';
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closeBtn.title = 'Close fullscreen';
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closeBtn.addEventListener('click', () => this._toggleFullscreen(id));
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block.appendChild(closeBtn);
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// Escape listener (desktop convenience, not sole exit)
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block._mmdEscHandler = (e) => {
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if (e.key === 'Escape') this._toggleFullscreen(id);
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};
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document.addEventListener('keydown', block._mmdEscHandler);
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requestAnimationFrame(() => this._zoomFit(id));
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} else {
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document.body.style.overflow = '';
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const closeBtn = block.querySelector('.mmd-fullscreen-close');
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if (closeBtn) closeBtn.remove();
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if (block._mmdEscHandler) {
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document.removeEventListener('keydown', block._mmdEscHandler);
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delete block._mmdEscHandler;
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}
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}
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},
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// ── Side Panel Pop-out ──────────────────
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_popOutToPanel(id) {
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const diagram = document.querySelector(`[data-diagram="${id}"]`);
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const svg = diagram?.querySelector('svg');
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if (!svg) return;
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const state = this._getState(id);
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const clone = svg.cloneNode(true);
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if (state?.ready) {
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clone.setAttribute('viewBox',
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`${state.natX} ${state.natY} ${state.natW} ${state.natH}`);
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}
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clone.setAttribute('width', '100%');
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clone.removeAttribute('height');
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clone.setAttribute('preserveAspectRatio', 'xMidYMid meet');
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const isDark = this._ctx.ui.isDark();
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const html = `<!DOCTYPE html>
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<html><head>
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<meta charset="utf-8">
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<style>
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body { margin: 0; padding: 16px; display: flex; justify-content: center;
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align-items: flex-start; min-height: 100vh;
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background: ${isDark ? '#1a1a2e' : '#fff'};
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font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
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svg { max-width: 100%; height: auto; }
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</style>
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</head><body>${clone.outerHTML}</body></html>`;
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this._ctx.ui.openPreview(html);
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},
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// ── Toolbar Wiring ──────────────────────
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_wireToolbar(container) {
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const self = this;
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if (container._mmdWired) return;
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container._mmdWired = true;
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container.addEventListener('click', (e) => {
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const btn = e.target.closest('[data-action]');
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if (!btn) return;
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const action = btn.dataset.action;
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const id = btn.dataset.target;
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if (!id) return;
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switch (action) {
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case 'zoom-in': self._zoom(id, 0.25); break;
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case 'zoom-out': self._zoom(id, -0.2); break;
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case 'zoom-reset': self._zoomReset(id); break;
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case 'zoom-fit': self._zoomFit(id); break;
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case 'expand': self._expand(id); break;
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case 'export-svg': self._exportSVG(id); break;
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case 'export-png': self._exportPNG(id); break;
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case 'copy-src': self._copySource(id); break;
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}
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});
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// Wire each viewport for mouse/touch interaction
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container.querySelectorAll('.mermaid-viewport').forEach(vp => {
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if (vp._mmdWired) return;
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vp._mmdWired = true;
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const id = vp.dataset.viewport;
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vp.addEventListener('wheel', (e) => {
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e.preventDefault();
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const delta = e.deltaY > 0 ? -0.1 : 0.1;
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self._zoomAt(id, delta, e.clientX, e.clientY);
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}, { passive: false });
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vp.addEventListener('mousedown', (e) => {
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if (e.button !== 0) return;
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const state = self._getState(id);
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if (!state || !state.ready) return;
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state.dragging = true;
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state.startX = e.clientX;
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state.startY = e.clientY;
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state.startVbX = state.vbX;
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state.startVbY = state.vbY;
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vp.classList.add('mmd-grabbing');
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e.preventDefault();
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});
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vp.addEventListener('mousemove', (e) => {
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const state = self._getState(id);
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if (!state?.dragging) return;
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const svg = document.querySelector(`[data-diagram="${id}"] svg`);
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if (!svg) return;
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const svgRect = svg.getBoundingClientRect();
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if (svgRect.width === 0) return;
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const pxToVb = state.vbW / svgRect.width;
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const dx = (e.clientX - state.startX) * pxToVb;
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const dy = (e.clientY - state.startY) * pxToVb;
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state.vbX = state.startVbX - dx;
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state.vbY = state.startVbY - dy;
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self._applyViewBox(id);
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});
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const endDrag = () => {
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const state = self._getState(id);
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if (!state) return;
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state.dragging = false;
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vp.classList.remove('mmd-grabbing');
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};
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vp.addEventListener('mouseup', endDrag);
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vp.addEventListener('mouseleave', endDrag);
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let lastTouchDist = 0;
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let lastTouchCenter = null;
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vp.addEventListener('touchstart', (e) => {
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const state = self._getState(id);
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if (!state || !state.ready) return;
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if (e.touches.length === 1) {
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state.dragging = true;
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state.startX = e.touches[0].clientX;
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state.startY = e.touches[0].clientY;
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state.startVbX = state.vbX;
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state.startVbY = state.vbY;
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} else if (e.touches.length === 2) {
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lastTouchDist = Math.hypot(
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e.touches[0].clientX - e.touches[1].clientX,
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e.touches[0].clientY - e.touches[1].clientY
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);
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lastTouchCenter = {
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x: (e.touches[0].clientX + e.touches[1].clientX) / 2,
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y: (e.touches[0].clientY + e.touches[1].clientY) / 2,
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};
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}
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}, { passive: true });
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vp.addEventListener('touchmove', (e) => {
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const state = self._getState(id);
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if (!state || !state.ready) return;
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if (e.touches.length === 1 && state.dragging) {
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const svg = document.querySelector(`[data-diagram="${id}"] svg`);
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if (!svg) return;
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const svgRect = svg.getBoundingClientRect();
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if (svgRect.width === 0) return;
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const pxToVb = state.vbW / svgRect.width;
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const dx = (e.touches[0].clientX - state.startX) * pxToVb;
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const dy = (e.touches[0].clientY - state.startY) * pxToVb;
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state.vbX = state.startVbX - dx;
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state.vbY = state.startVbY - dy;
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self._applyViewBox(id);
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e.preventDefault();
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} else if (e.touches.length === 2) {
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const dist = Math.hypot(
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e.touches[0].clientX - e.touches[1].clientX,
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e.touches[0].clientY - e.touches[1].clientY
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);
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const center = {
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x: (e.touches[0].clientX + e.touches[1].clientX) / 2,
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y: (e.touches[0].clientY + e.touches[1].clientY) / 2,
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};
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if (lastTouchDist > 0) {
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const factor = (dist - lastTouchDist) / lastTouchDist;
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self._zoomAt(id, factor, center.x, center.y);
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}
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lastTouchDist = dist;
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lastTouchCenter = center;
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e.preventDefault();
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}
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}, { passive: false });
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vp.addEventListener('touchend', () => {
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const state = self._getState(id);
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if (state) state.dragging = false;
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lastTouchDist = 0;
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lastTouchCenter = null;
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}, { passive: true });
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});
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},
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|
|
// ── Export ───────────────────────────────
|
|
|
|
_exportSVG(id) {
|
|
const diagram = document.querySelector(`[data-diagram="${id}"]`);
|
|
const svg = diagram?.querySelector('svg');
|
|
if (!svg) return;
|
|
|
|
const state = this._getState(id);
|
|
const clone = svg.cloneNode(true);
|
|
clone.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
|
|
if (state?.ready) {
|
|
clone.setAttribute('viewBox', `${state.natX} ${state.natY} ${state.natW} ${state.natH}`);
|
|
}
|
|
const blob = new Blob([clone.outerHTML], { type: 'image/svg+xml' });
|
|
this._download(blob, `diagram-${id}.svg`);
|
|
},
|
|
|
|
_exportPNG(id) {
|
|
const diagram = document.querySelector(`[data-diagram="${id}"]`);
|
|
const svg = diagram?.querySelector('svg');
|
|
if (!svg) return;
|
|
|
|
const state = this._getState(id);
|
|
const clone = svg.cloneNode(true);
|
|
clone.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
|
|
if (state?.ready) {
|
|
clone.setAttribute('viewBox', `${state.natX} ${state.natY} ${state.natW} ${state.natH}`);
|
|
clone.setAttribute('width', state.natW);
|
|
clone.setAttribute('height', state.natH);
|
|
}
|
|
|
|
const svgData = new XMLSerializer().serializeToString(clone);
|
|
const svgBlob = new Blob([svgData], { type: 'image/svg+xml;charset=utf-8' });
|
|
const url = URL.createObjectURL(svgBlob);
|
|
const self = this;
|
|
|
|
const img = new Image();
|
|
img.onload = () => {
|
|
const scale = 2;
|
|
const canvas = document.createElement('canvas');
|
|
canvas.width = img.naturalWidth * scale;
|
|
canvas.height = img.naturalHeight * scale;
|
|
const ctx = canvas.getContext('2d');
|
|
ctx.scale(scale, scale);
|
|
ctx.drawImage(img, 0, 0);
|
|
URL.revokeObjectURL(url);
|
|
|
|
canvas.toBlob((blob) => {
|
|
if (blob) self._download(blob, `diagram-${id}.png`);
|
|
}, 'image/png');
|
|
};
|
|
img.onerror = () => {
|
|
URL.revokeObjectURL(url);
|
|
console.error('[Mermaid] PNG export failed');
|
|
};
|
|
img.src = url;
|
|
},
|
|
|
|
_download(blob, filename) {
|
|
const a = document.createElement('a');
|
|
a.href = URL.createObjectURL(blob);
|
|
a.download = filename;
|
|
document.body.appendChild(a);
|
|
a.click();
|
|
document.body.removeChild(a);
|
|
setTimeout(() => URL.revokeObjectURL(a.href), 1000);
|
|
},
|
|
|
|
_copySource(id) {
|
|
const code = document.querySelector(`[data-source="${id}"]`);
|
|
if (!code) return;
|
|
navigator.clipboard.writeText(code.textContent).then(() => {
|
|
this._ctx.ui.toast('Source copied', 'success');
|
|
});
|
|
},
|
|
|
|
// ── Diagram Rendering ───────────────────
|
|
|
|
async _renderDiagram(el) {
|
|
const code = decodeURIComponent(el.dataset.mermaidSrc);
|
|
const id = el.dataset.diagram;
|
|
|
|
try {
|
|
await this._loadMermaid();
|
|
|
|
const svgId = 'mmd-svg-' + Math.random().toString(36).slice(2, 9);
|
|
const { svg } = await mermaid.render(svgId, code);
|
|
el.innerHTML = svg;
|
|
el.dataset.rendered = 'true';
|
|
|
|
const svgEl = el.querySelector('svg');
|
|
if (svgEl) {
|
|
svgEl.removeAttribute('height');
|
|
svgEl.setAttribute('width', '100%');
|
|
svgEl.style.maxWidth = 'none';
|
|
svgEl.setAttribute('preserveAspectRatio', 'xMidYMid meet');
|
|
}
|
|
|
|
this._initState(id);
|
|
} catch (e) {
|
|
el.innerHTML = `
|
|
<div class="mermaid-error">
|
|
<strong>Diagram error:</strong> ${this._escapeHtml(e.message || String(e))}
|
|
</div>
|
|
`;
|
|
el.dataset.rendered = 'error';
|
|
}
|
|
},
|
|
|
|
// ── Mermaid Library Loading ──────────────
|
|
|
|
_loadMermaid() {
|
|
if (this._mermaidReady) return Promise.resolve();
|
|
if (this._mermaidLoading) return this._mermaidLoading;
|
|
|
|
this._mermaidLoading = new Promise((resolve, reject) => {
|
|
if (typeof mermaid !== 'undefined') {
|
|
this._initMermaid();
|
|
this._mermaidReady = true;
|
|
resolve();
|
|
return;
|
|
}
|
|
|
|
const base = (window.__BASE__ || '');
|
|
const localSrc = `${base}/vendor/mermaid/mermaid.min.js`;
|
|
const cdnSrc = 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.min.js';
|
|
|
|
const script = document.createElement('script');
|
|
script.src = localSrc;
|
|
script.onload = () => {
|
|
this._initMermaid();
|
|
this._mermaidReady = true;
|
|
resolve();
|
|
};
|
|
script.onerror = () => {
|
|
console.warn('[Mermaid] Local vendor not found, trying CDN');
|
|
const cdn = document.createElement('script');
|
|
cdn.src = cdnSrc;
|
|
cdn.onload = () => {
|
|
this._initMermaid();
|
|
this._mermaidReady = true;
|
|
resolve();
|
|
};
|
|
cdn.onerror = () => {
|
|
console.error('[Mermaid] Failed to load from both local and CDN');
|
|
reject(new Error('Failed to load mermaid.js'));
|
|
};
|
|
document.head.appendChild(cdn);
|
|
};
|
|
document.head.appendChild(script);
|
|
});
|
|
|
|
return this._mermaidLoading;
|
|
},
|
|
|
|
_initMermaid() {
|
|
if (typeof mermaid === 'undefined') return;
|
|
|
|
mermaid.initialize({
|
|
startOnLoad: false,
|
|
theme: this._ctx.ui.isDark() ? 'dark' : 'default',
|
|
securityLevel: 'strict',
|
|
fontFamily: 'inherit',
|
|
logLevel: 'error',
|
|
});
|
|
},
|
|
|
|
// ── Styles ──────────────────────────────
|
|
|
|
_injectStyles() {
|
|
if (document.getElementById('ext-style-mermaid-renderer')) return;
|
|
const style = document.createElement('style');
|
|
style.id = 'ext-style-mermaid-renderer';
|
|
style.textContent = `
|
|
.mermaid-block {
|
|
background: var(--bg-2); border: 1px solid var(--border);
|
|
border-radius: 8px; overflow: hidden; margin: 12px 0;
|
|
}
|
|
|
|
/* ── Fullscreen mode ── */
|
|
.mermaid-block.mermaid-fullscreen {
|
|
position: fixed; top: 0; left: 0; right: 0; bottom: 0;
|
|
z-index: 10000; border-radius: 0; margin: 0;
|
|
display: flex; flex-direction: column;
|
|
background: var(--bg-1, var(--bg-2, #1a1a2e));
|
|
}
|
|
.mermaid-block.mermaid-fullscreen .mermaid-viewport {
|
|
background: var(--bg-2, #1a1a2e);
|
|
flex: 1; max-height: none;
|
|
}
|
|
.mermaid-block.mermaid-fullscreen .mermaid-toolbar {
|
|
border-bottom: 1px solid var(--border);
|
|
padding: 6px 14px;
|
|
}
|
|
|
|
/* Fullscreen close button — always visible, critical for mobile */
|
|
.mmd-fullscreen-close {
|
|
position: absolute; top: 12px; right: 12px; z-index: 10001;
|
|
width: 40px; height: 40px; border-radius: 50%;
|
|
background: var(--bg-raised, rgba(0,0,0,0.6));
|
|
border: 1px solid var(--border, rgba(255,255,255,0.2));
|
|
color: var(--text, #fff); font-size: 20px; line-height: 1;
|
|
cursor: pointer; display: flex; align-items: center; justify-content: center;
|
|
transition: background 0.15s, transform 0.15s;
|
|
box-shadow: 0 2px 8px rgba(0,0,0,0.3);
|
|
}
|
|
.mmd-fullscreen-close:hover {
|
|
background: var(--bg-hover, rgba(255,255,255,0.15));
|
|
transform: scale(1.1);
|
|
}
|
|
|
|
/* Toolbar */
|
|
.mermaid-toolbar {
|
|
display: flex; align-items: center; gap: 6px;
|
|
padding: 4px 10px; border-bottom: 1px solid var(--border);
|
|
font-size: 12px; color: var(--text-3); flex-wrap: wrap;
|
|
}
|
|
.mermaid-title { font-weight: 600; color: var(--text-2); margin-right: auto; }
|
|
.mermaid-zoom-label {
|
|
font-family: var(--mono); font-size: 11px; min-width: 36px;
|
|
text-align: center; color: var(--text-3);
|
|
}
|
|
.mermaid-toolbar-btns { display: flex; gap: 2px; align-items: center; }
|
|
.mmd-btn {
|
|
background: none; border: 1px solid var(--border); border-radius: 4px;
|
|
padding: 1px 7px; font-size: 11px; cursor: pointer;
|
|
color: var(--text-3); font-family: var(--mono); line-height: 1.6;
|
|
}
|
|
.mmd-btn:hover { color: var(--text-1); border-color: var(--text-3); background: var(--bg-3); }
|
|
.mmd-sep { width: 1px; height: 16px; background: var(--border); margin: 0 4px; }
|
|
|
|
/* Viewport */
|
|
.mermaid-viewport {
|
|
overflow: hidden; position: relative;
|
|
min-height: 80px; max-height: 600px;
|
|
cursor: grab; user-select: none;
|
|
}
|
|
.mermaid-viewport.mmd-grabbing { cursor: grabbing; }
|
|
|
|
/* Diagram wrapper */
|
|
.mermaid-diagram {
|
|
width: 100%; height: 100%; min-height: 60px;
|
|
}
|
|
.mermaid-diagram svg {
|
|
display: block; width: 100%; height: 100%;
|
|
}
|
|
|
|
/* Loading / Error */
|
|
.mermaid-loading {
|
|
color: var(--text-3); font-size: 13px; padding: 20px;
|
|
display: flex; align-items: center; justify-content: center; gap: 8px;
|
|
}
|
|
.mermaid-spinner {
|
|
display: inline-block; width: 14px; height: 14px;
|
|
border: 2px solid var(--border); border-top-color: var(--accent);
|
|
border-radius: 50%; animation: mmd-spin 0.8s linear infinite;
|
|
}
|
|
@keyframes mmd-spin { to { transform: rotate(360deg); } }
|
|
.mermaid-error {
|
|
color: var(--error, #e74c3c); background: var(--bg-3, rgba(231,76,60,0.1));
|
|
padding: 12px 16px; border-radius: 4px; font-size: 13px;
|
|
font-family: var(--mono); white-space: pre-wrap;
|
|
}
|
|
|
|
/* Source panel */
|
|
.mermaid-source { border-top: 1px solid var(--border); font-size: 12px; }
|
|
.mermaid-source summary {
|
|
padding: 6px 12px; cursor: pointer; color: var(--text-3);
|
|
user-select: none; display: flex; align-items: center; gap: 8px;
|
|
}
|
|
.mermaid-source summary:hover { color: var(--text-2); }
|
|
.mermaid-source summary span { flex: 1; }
|
|
.mmd-copy-src { font-size: 11px; }
|
|
.mermaid-source pre {
|
|
margin: 0; border-radius: 0; border: none;
|
|
max-height: 200px; overflow: auto;
|
|
}
|
|
|
|
/* Hide source panel in fullscreen */
|
|
.mermaid-block.mermaid-fullscreen .mermaid-source { display: none; }
|
|
|
|
/* ── Mobile adjustments ── */
|
|
@media (max-width: 768px) {
|
|
.mermaid-toolbar { padding: 6px 10px; gap: 4px; }
|
|
.mmd-btn { padding: 4px 10px; font-size: 12px; }
|
|
.mmd-sep { margin: 0 2px; }
|
|
.mmd-fullscreen-close { width: 48px; height: 48px; font-size: 24px; top: 16px; right: 16px; }
|
|
}
|
|
`;
|
|
document.head.appendChild(style);
|
|
},
|
|
|
|
_escapeHtml(str) {
|
|
const div = document.createElement('div');
|
|
div.textContent = str;
|
|
return div.innerHTML;
|
|
},
|
|
|
|
destroy() {
|
|
document.getElementById('ext-style-mermaid-renderer')?.remove();
|
|
document.querySelectorAll('.mermaid-fullscreen').forEach(el => {
|
|
el.classList.remove('mermaid-fullscreen');
|
|
const closeBtn = el.querySelector('.mmd-fullscreen-close');
|
|
if (closeBtn) closeBtn.remove();
|
|
});
|
|
document.body.style.overflow = '';
|
|
}
|
|
});
|