775 lines
19 KiB
TypeScript
775 lines
19 KiB
TypeScript
import { FolkShape } from "./folk-shape";
|
||
import { css, html } from "./tags";
|
||
|
||
const styles = css`
|
||
:host {
|
||
background: var(--rs-bg-surface, #fff);
|
||
color: var(--rs-text-primary, #1e293b);
|
||
border-radius: 8px;
|
||
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
|
||
min-width: 560px;
|
||
min-height: 480px;
|
||
}
|
||
|
||
.header {
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: space-between;
|
||
padding: 8px 12px;
|
||
background: linear-gradient(135deg, #8b5cf6, #6366f1);
|
||
color: white;
|
||
border-radius: 8px 8px 0 0;
|
||
font-size: 12px;
|
||
font-weight: 600;
|
||
cursor: move;
|
||
}
|
||
|
||
.header-title {
|
||
display: flex;
|
||
align-items: center;
|
||
gap: 6px;
|
||
}
|
||
|
||
.header-actions {
|
||
display: flex;
|
||
gap: 4px;
|
||
}
|
||
|
||
.header-actions button {
|
||
background: transparent;
|
||
border: none;
|
||
color: white;
|
||
cursor: pointer;
|
||
padding: 2px 6px;
|
||
border-radius: 4px;
|
||
font-size: 14px;
|
||
}
|
||
|
||
.header-actions button:hover {
|
||
background: rgba(255, 255, 255, 0.2);
|
||
}
|
||
|
||
.content {
|
||
display: flex;
|
||
flex-direction: column;
|
||
height: calc(100% - 36px);
|
||
overflow: hidden;
|
||
}
|
||
|
||
.toolbar-row {
|
||
display: flex;
|
||
align-items: center;
|
||
gap: 6px;
|
||
padding: 8px 12px;
|
||
border-bottom: 1px solid var(--rs-border, rgba(255, 255, 255, 0.1));
|
||
flex-wrap: wrap;
|
||
}
|
||
|
||
.tool-btn {
|
||
width: 32px;
|
||
height: 32px;
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
border: 2px solid var(--rs-border, rgba(255, 255, 255, 0.1));
|
||
border-radius: 6px;
|
||
background: var(--rs-bg-surface, #1e293b);
|
||
cursor: pointer;
|
||
font-size: 14px;
|
||
transition: all 0.15s;
|
||
}
|
||
|
||
.tool-btn:hover {
|
||
border-color: #8b5cf6;
|
||
}
|
||
|
||
.tool-btn.active {
|
||
border-color: #8b5cf6;
|
||
background: rgba(139, 92, 246, 0.15);
|
||
}
|
||
|
||
.color-swatch {
|
||
width: 24px;
|
||
height: 24px;
|
||
border-radius: 50%;
|
||
border: 2px solid var(--rs-border, rgba(255, 255, 255, 0.1));
|
||
cursor: pointer;
|
||
transition: transform 0.1s;
|
||
}
|
||
|
||
.color-swatch:hover {
|
||
transform: scale(1.2);
|
||
}
|
||
|
||
.color-swatch.active {
|
||
border-color: var(--rs-text-primary, #e2e8f0);
|
||
transform: scale(1.15);
|
||
}
|
||
|
||
.size-slider {
|
||
width: 80px;
|
||
accent-color: #8b5cf6;
|
||
}
|
||
|
||
.size-label {
|
||
font-size: 11px;
|
||
color: var(--rs-text-muted, #64748b);
|
||
min-width: 20px;
|
||
}
|
||
|
||
.split-area {
|
||
flex: 1;
|
||
display: flex;
|
||
overflow: hidden;
|
||
min-height: 0;
|
||
}
|
||
|
||
.canvas-area {
|
||
flex: 1;
|
||
position: relative;
|
||
cursor: crosshair;
|
||
overflow: hidden;
|
||
min-width: 0;
|
||
}
|
||
|
||
.canvas-area canvas {
|
||
width: 100%;
|
||
height: 100%;
|
||
display: block;
|
||
}
|
||
|
||
.result-area {
|
||
flex: 1;
|
||
position: relative;
|
||
overflow: hidden;
|
||
display: flex;
|
||
flex-direction: column;
|
||
background: var(--rs-bg-muted, #f8fafc);
|
||
border-left: 1px solid var(--rs-border, rgba(255, 255, 255, 0.1));
|
||
min-width: 0;
|
||
}
|
||
|
||
.result-area iframe {
|
||
flex: 1;
|
||
width: 100%;
|
||
border: none;
|
||
background: #fff;
|
||
}
|
||
|
||
.result-area pre {
|
||
flex: 1;
|
||
margin: 0;
|
||
padding: 10px;
|
||
font-size: 11px;
|
||
overflow: auto;
|
||
background: #1e1e2e;
|
||
color: #cdd6f4;
|
||
white-space: pre-wrap;
|
||
word-break: break-word;
|
||
}
|
||
|
||
.result-placeholder {
|
||
display: flex;
|
||
flex: 1;
|
||
flex-direction: column;
|
||
align-items: center;
|
||
justify-content: center;
|
||
gap: 8px;
|
||
color: var(--rs-text-muted, #94a3b8);
|
||
text-align: center;
|
||
font-size: 12px;
|
||
padding: 12px;
|
||
}
|
||
|
||
.result-placeholder-icon {
|
||
font-size: 32px;
|
||
opacity: 0.4;
|
||
}
|
||
|
||
.result-toolbar {
|
||
display: flex;
|
||
gap: 4px;
|
||
padding: 4px 8px;
|
||
background: var(--rs-bg-surface, #fff);
|
||
border-bottom: 1px solid var(--rs-border, rgba(255, 255, 255, 0.1));
|
||
font-size: 11px;
|
||
}
|
||
|
||
.result-toolbar button {
|
||
padding: 3px 8px;
|
||
border: 1px solid var(--rs-border, #e2e8f0);
|
||
border-radius: 4px;
|
||
background: var(--rs-bg-surface, #fff);
|
||
cursor: pointer;
|
||
font-size: 11px;
|
||
color: var(--rs-text-primary, #1e293b);
|
||
}
|
||
|
||
.result-toolbar button:hover {
|
||
background: var(--rs-bg-muted, #f1f5f9);
|
||
}
|
||
|
||
.result-toolbar button.active {
|
||
background: #8b5cf6;
|
||
color: white;
|
||
border-color: #8b5cf6;
|
||
}
|
||
|
||
.spinner-overlay {
|
||
position: absolute;
|
||
inset: 0;
|
||
display: flex;
|
||
flex-direction: column;
|
||
align-items: center;
|
||
justify-content: center;
|
||
background: rgba(255, 255, 255, 0.7);
|
||
gap: 8px;
|
||
z-index: 2;
|
||
}
|
||
|
||
.spinner {
|
||
width: 28px;
|
||
height: 28px;
|
||
border: 3px solid #e2e8f0;
|
||
border-top-color: #8b5cf6;
|
||
border-radius: 50%;
|
||
animation: spin 1s linear infinite;
|
||
}
|
||
|
||
.spinner-text {
|
||
font-size: 11px;
|
||
color: #64748b;
|
||
}
|
||
|
||
@keyframes spin {
|
||
to { transform: rotate(360deg); }
|
||
}
|
||
|
||
.prompt-bar {
|
||
display: flex;
|
||
gap: 6px;
|
||
padding: 8px 12px;
|
||
border-top: 1px solid var(--rs-border, rgba(255, 255, 255, 0.1));
|
||
align-items: center;
|
||
}
|
||
|
||
.prompt-input {
|
||
flex: 1;
|
||
padding: 6px 10px;
|
||
border: 2px solid var(--rs-input-border, #e2e8f0);
|
||
border-radius: 6px;
|
||
font-size: 12px;
|
||
outline: none;
|
||
font-family: inherit;
|
||
background: var(--rs-input-bg, #fff);
|
||
color: var(--rs-input-text, inherit);
|
||
}
|
||
|
||
.prompt-input:focus {
|
||
border-color: #8b5cf6;
|
||
}
|
||
|
||
.generate-btn {
|
||
padding: 6px 14px;
|
||
background: linear-gradient(135deg, #8b5cf6, #6366f1);
|
||
color: white;
|
||
border: none;
|
||
border-radius: 6px;
|
||
font-size: 12px;
|
||
font-weight: 600;
|
||
cursor: pointer;
|
||
white-space: nowrap;
|
||
transition: opacity 0.2s;
|
||
}
|
||
|
||
.generate-btn:hover {
|
||
opacity: 0.9;
|
||
}
|
||
|
||
.generate-btn:disabled {
|
||
opacity: 0.5;
|
||
cursor: not-allowed;
|
||
}
|
||
|
||
.framework-select {
|
||
padding: 4px 8px;
|
||
border: 2px solid #e2e8f0;
|
||
border-radius: 6px;
|
||
font-size: 11px;
|
||
background: var(--rs-bg-surface, white);
|
||
cursor: pointer;
|
||
}
|
||
`;
|
||
|
||
const COLORS = ["#0f172a", "#ef4444", "#f97316", "#eab308", "#22c55e", "#3b82f6", "#8b5cf6", "#ec4899", "#ffffff"];
|
||
|
||
interface Stroke {
|
||
points: { x: number; y: number; pressure: number }[];
|
||
color: string;
|
||
size: number;
|
||
tool: string;
|
||
}
|
||
|
||
declare global {
|
||
interface HTMLElementTagNameMap {
|
||
"folk-makereal": FolkMakereal;
|
||
}
|
||
}
|
||
|
||
export class FolkMakereal extends FolkShape {
|
||
static override tagName = "folk-makereal";
|
||
|
||
static override portDescriptors = [
|
||
{ name: "prompt", type: "text" as const, direction: "input" as const },
|
||
{ name: "html", type: "text" as const, direction: "output" as const },
|
||
];
|
||
|
||
static {
|
||
const sheet = new CSSStyleSheet();
|
||
const parentRules = Array.from(FolkShape.styles.cssRules)
|
||
.map((r) => r.cssText)
|
||
.join("\n");
|
||
const childRules = Array.from(styles.cssRules)
|
||
.map((r) => r.cssText)
|
||
.join("\n");
|
||
sheet.replaceSync(`${parentRules}\n${childRules}`);
|
||
this.styles = sheet;
|
||
}
|
||
|
||
#strokes: Stroke[] = [];
|
||
#currentStroke: Stroke | null = null;
|
||
#canvas: HTMLCanvasElement | null = null;
|
||
#ctx: CanvasRenderingContext2D | null = null;
|
||
#color = "#0f172a";
|
||
#brushSize = 4;
|
||
#tool = "pen";
|
||
#isDrawing = false;
|
||
#isGenerating = false;
|
||
#framework = "html";
|
||
#lastHtml: string | null = null;
|
||
#showCode = false;
|
||
#promptInput: HTMLInputElement | null = null;
|
||
#generateBtn: HTMLButtonElement | null = null;
|
||
#resultArea: HTMLElement | null = null;
|
||
#resizeObserver: ResizeObserver | null = null;
|
||
|
||
override createRenderRoot() {
|
||
const root = super.createRenderRoot();
|
||
|
||
const wrapper = document.createElement("div");
|
||
wrapper.innerHTML = html`
|
||
<div class="header">
|
||
<span class="header-title">
|
||
<span>🪄</span>
|
||
<span>MakeReal</span>
|
||
</span>
|
||
<div class="header-actions">
|
||
<button class="close-btn" title="Close">×</button>
|
||
</div>
|
||
</div>
|
||
<div class="content">
|
||
<div class="toolbar-row">
|
||
<button class="tool-btn active" data-tool="pen" title="Pen">✏️</button>
|
||
<button class="tool-btn" data-tool="eraser" title="Eraser">🧹</button>
|
||
<span style="width:1px;height:20px;background:var(--rs-border,rgba(255,255,255,0.1));margin:0 2px"></span>
|
||
${COLORS.map((c) => `<span class="color-swatch${c === "#0f172a" ? " active" : ""}" data-color="${c}" style="background:${c}"></span>`).join("")}
|
||
<span style="width:1px;height:20px;background:var(--rs-border,rgba(255,255,255,0.1));margin:0 2px"></span>
|
||
<input type="range" class="size-slider" min="1" max="24" value="4" />
|
||
<span class="size-label">4</span>
|
||
<span style="flex:1"></span>
|
||
<button class="tool-btn" data-tool="clear" title="Clear all">🗑️</button>
|
||
</div>
|
||
<div class="split-area">
|
||
<div class="canvas-area">
|
||
<canvas></canvas>
|
||
</div>
|
||
<div class="result-area">
|
||
<div class="result-placeholder">
|
||
<span class="result-placeholder-icon">🪄</span>
|
||
<span>Draw a wireframe and click Make Real</span>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="prompt-bar">
|
||
<input type="text" class="prompt-input" placeholder="Describe the UI you're sketching..." />
|
||
<select class="framework-select">
|
||
<option value="html">HTML</option>
|
||
<option value="tailwind">Tailwind</option>
|
||
<option value="react">React</option>
|
||
</select>
|
||
<button class="generate-btn">Make Real</button>
|
||
</div>
|
||
</div>
|
||
`;
|
||
|
||
const slot = root.querySelector("slot");
|
||
const containerDiv = slot?.parentElement as HTMLElement;
|
||
if (containerDiv) {
|
||
containerDiv.replaceWith(wrapper);
|
||
}
|
||
|
||
this.#canvas = wrapper.querySelector(".canvas-area canvas") as HTMLCanvasElement;
|
||
this.#ctx = this.#canvas.getContext("2d");
|
||
this.#promptInput = wrapper.querySelector(".prompt-input") as HTMLInputElement;
|
||
this.#generateBtn = wrapper.querySelector(".generate-btn") as HTMLButtonElement;
|
||
this.#resultArea = wrapper.querySelector(".result-area") as HTMLElement;
|
||
|
||
const closeBtn = wrapper.querySelector(".close-btn") as HTMLButtonElement;
|
||
const sizeSlider = wrapper.querySelector(".size-slider") as HTMLInputElement;
|
||
const sizeLabel = wrapper.querySelector(".size-label") as HTMLElement;
|
||
const canvasArea = wrapper.querySelector(".canvas-area") as HTMLElement;
|
||
const frameworkSelect = wrapper.querySelector(".framework-select") as HTMLSelectElement;
|
||
|
||
// Tool buttons
|
||
wrapper.querySelectorAll(".tool-btn").forEach((btn) => {
|
||
btn.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
const tool = (btn as HTMLElement).dataset.tool;
|
||
if (tool === "clear") {
|
||
this.#strokes = [];
|
||
this.#redraw();
|
||
return;
|
||
}
|
||
this.#tool = tool || "pen";
|
||
wrapper.querySelectorAll(".tool-btn").forEach((b) => b.classList.remove("active"));
|
||
if (tool !== "clear") btn.classList.add("active");
|
||
});
|
||
});
|
||
|
||
// Color swatches
|
||
wrapper.querySelectorAll(".color-swatch").forEach((swatch) => {
|
||
swatch.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
this.#color = (swatch as HTMLElement).dataset.color || "#0f172a";
|
||
wrapper.querySelectorAll(".color-swatch").forEach((s) => s.classList.remove("active"));
|
||
swatch.classList.add("active");
|
||
this.#tool = "pen";
|
||
wrapper.querySelectorAll(".tool-btn").forEach((b) => b.classList.remove("active"));
|
||
wrapper.querySelector('[data-tool="pen"]')?.classList.add("active");
|
||
});
|
||
});
|
||
|
||
// Size slider
|
||
sizeSlider.addEventListener("input", (e) => {
|
||
e.stopPropagation();
|
||
this.#brushSize = parseInt(sizeSlider.value);
|
||
sizeLabel.textContent = sizeSlider.value;
|
||
});
|
||
sizeSlider.addEventListener("pointerdown", (e) => e.stopPropagation());
|
||
|
||
// Framework select
|
||
frameworkSelect.addEventListener("change", (e) => {
|
||
e.stopPropagation();
|
||
this.#framework = frameworkSelect.value;
|
||
});
|
||
frameworkSelect.addEventListener("pointerdown", (e) => e.stopPropagation());
|
||
|
||
// Drawing events
|
||
this.#canvas.addEventListener("pointerdown", (e) => {
|
||
e.stopPropagation();
|
||
e.preventDefault();
|
||
this.#isDrawing = true;
|
||
this.#canvas!.setPointerCapture(e.pointerId);
|
||
const pos = this.#getCanvasPos(e);
|
||
this.#currentStroke = {
|
||
points: [{ ...pos, pressure: e.pressure || 0.5 }],
|
||
color: this.#tool === "eraser" ? "#ffffff" : this.#color,
|
||
size: this.#tool === "eraser" ? this.#brushSize * 3 : this.#brushSize,
|
||
tool: this.#tool,
|
||
};
|
||
});
|
||
|
||
this.#canvas.addEventListener("pointermove", (e) => {
|
||
if (!this.#isDrawing || !this.#currentStroke) return;
|
||
e.stopPropagation();
|
||
const pos = this.#getCanvasPos(e);
|
||
this.#currentStroke.points.push({ ...pos, pressure: e.pressure || 0.5 });
|
||
this.#drawStroke(this.#currentStroke);
|
||
});
|
||
|
||
const endDraw = () => {
|
||
if (!this.#isDrawing) return;
|
||
this.#isDrawing = false;
|
||
if (this.#currentStroke && this.#currentStroke.points.length > 0) {
|
||
this.#strokes.push(this.#currentStroke);
|
||
}
|
||
this.#currentStroke = null;
|
||
};
|
||
|
||
this.#canvas.addEventListener("pointerup", endDraw);
|
||
this.#canvas.addEventListener("pointerleave", endDraw);
|
||
|
||
// Generate button
|
||
this.#generateBtn.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
this.#generate();
|
||
});
|
||
|
||
// Enter key in prompt
|
||
this.#promptInput.addEventListener("keydown", (e) => {
|
||
if (e.key === "Enter") {
|
||
e.preventDefault();
|
||
this.#generate();
|
||
}
|
||
});
|
||
this.#promptInput.addEventListener("pointerdown", (e) => e.stopPropagation());
|
||
|
||
closeBtn.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
this.dispatchEvent(new CustomEvent("close"));
|
||
});
|
||
|
||
// Size canvas on next frame
|
||
requestAnimationFrame(() => {
|
||
this.#resizeCanvas(canvasArea);
|
||
this.#redraw();
|
||
});
|
||
|
||
this.#resizeObserver = new ResizeObserver(() => {
|
||
this.#resizeCanvas(canvasArea);
|
||
this.#redraw();
|
||
});
|
||
this.#resizeObserver.observe(canvasArea);
|
||
|
||
return root;
|
||
}
|
||
|
||
async #generate() {
|
||
const prompt = this.#promptInput?.value.trim() || "Convert this wireframe into a working UI";
|
||
if (this.#isGenerating || !this.#canvas) return;
|
||
|
||
this.#isGenerating = true;
|
||
if (this.#generateBtn) this.#generateBtn.disabled = true;
|
||
this.#showCode = false;
|
||
this.#renderLoading();
|
||
|
||
try {
|
||
const sketchImage = this.#canvas.toDataURL("image/jpeg", 0.85);
|
||
|
||
const response = await fetch("/api/makereal", {
|
||
method: "POST",
|
||
headers: { "Content-Type": "application/json" },
|
||
body: JSON.stringify({
|
||
sketch_image: sketchImage,
|
||
prompt,
|
||
framework: this.#framework,
|
||
}),
|
||
});
|
||
|
||
if (!response.ok) {
|
||
const err = await response.json().catch(() => ({ error: response.statusText }));
|
||
throw new Error(err.error || `Generation failed: ${response.statusText}`);
|
||
}
|
||
|
||
const result = await response.json();
|
||
if (!result.html) throw new Error("No HTML returned");
|
||
|
||
this.#lastHtml = result.html;
|
||
this.#renderResult();
|
||
|
||
this.dispatchEvent(new CustomEvent("html-generated", {
|
||
detail: { html: result.html, prompt },
|
||
}));
|
||
} catch (error) {
|
||
const msg = error instanceof Error ? error.message : "Generation failed";
|
||
this.#renderError(msg);
|
||
} finally {
|
||
this.#isGenerating = false;
|
||
if (this.#generateBtn) this.#generateBtn.disabled = false;
|
||
}
|
||
}
|
||
|
||
#renderLoading() {
|
||
if (!this.#resultArea) return;
|
||
this.#resultArea.innerHTML = `
|
||
<div class="spinner-overlay">
|
||
<div class="spinner"></div>
|
||
<span class="spinner-text">Generating HTML...</span>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
#renderResult() {
|
||
if (!this.#resultArea || !this.#lastHtml) return;
|
||
|
||
const toolbar = `<div class="result-toolbar">
|
||
<button class="view-preview-btn${!this.#showCode ? " active" : ""}">Preview</button>
|
||
<button class="view-code-btn${this.#showCode ? " active" : ""}">Code</button>
|
||
<button class="copy-btn">Copy HTML</button>
|
||
<button class="open-btn">Open Tab</button>
|
||
</div>`;
|
||
|
||
if (this.#showCode) {
|
||
this.#resultArea.innerHTML = `${toolbar}<pre>${this.#escapeHtml(this.#lastHtml)}</pre>`;
|
||
} else {
|
||
this.#resultArea.innerHTML = `${toolbar}<iframe sandbox="allow-scripts" srcdoc="${this.#escapeAttr(this.#lastHtml)}"></iframe>`;
|
||
}
|
||
|
||
// Wire toolbar buttons
|
||
this.#resultArea.querySelector(".view-preview-btn")?.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
this.#showCode = false;
|
||
this.#renderResult();
|
||
});
|
||
this.#resultArea.querySelector(".view-code-btn")?.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
this.#showCode = true;
|
||
this.#renderResult();
|
||
});
|
||
this.#resultArea.querySelector(".copy-btn")?.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
if (this.#lastHtml) navigator.clipboard.writeText(this.#lastHtml);
|
||
});
|
||
this.#resultArea.querySelector(".open-btn")?.addEventListener("click", (e) => {
|
||
e.stopPropagation();
|
||
if (this.#lastHtml) {
|
||
const blob = new Blob([this.#lastHtml], { type: "text/html" });
|
||
window.open(URL.createObjectURL(blob), "_blank");
|
||
}
|
||
});
|
||
}
|
||
|
||
#renderError(msg: string) {
|
||
if (!this.#resultArea) return;
|
||
this.#resultArea.innerHTML = `
|
||
<div class="result-placeholder">
|
||
<span class="result-placeholder-icon">⚠️</span>
|
||
<span style="color:#ef4444">${this.#escapeHtml(msg)}</span>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
#resizeCanvas(container: HTMLElement) {
|
||
if (!this.#canvas) return;
|
||
const rect = container.getBoundingClientRect();
|
||
if (rect.width > 0 && rect.height > 0) {
|
||
this.#canvas.width = rect.width * devicePixelRatio;
|
||
this.#canvas.height = rect.height * devicePixelRatio;
|
||
this.#canvas.style.width = rect.width + "px";
|
||
this.#canvas.style.height = rect.height + "px";
|
||
if (this.#ctx) {
|
||
this.#ctx.scale(devicePixelRatio, devicePixelRatio);
|
||
}
|
||
}
|
||
}
|
||
|
||
#getCanvasPos(e: PointerEvent): { x: number; y: number } {
|
||
const rect = this.#canvas!.getBoundingClientRect();
|
||
return {
|
||
x: e.clientX - rect.left,
|
||
y: e.clientY - rect.top,
|
||
};
|
||
}
|
||
|
||
#drawStroke(stroke: Stroke) {
|
||
if (!this.#ctx || stroke.points.length < 2) return;
|
||
const ctx = this.#ctx;
|
||
|
||
ctx.lineCap = "round";
|
||
ctx.lineJoin = "round";
|
||
ctx.strokeStyle = stroke.color;
|
||
|
||
const len = stroke.points.length;
|
||
const p0 = stroke.points[len - 2];
|
||
const p1 = stroke.points[len - 1];
|
||
const pressure = (p0.pressure + p1.pressure) / 2;
|
||
|
||
ctx.lineWidth = stroke.size * (0.5 + pressure);
|
||
if (stroke.tool === "eraser") {
|
||
ctx.globalCompositeOperation = "destination-out";
|
||
ctx.lineWidth = stroke.size * 3;
|
||
} else {
|
||
ctx.globalCompositeOperation = "source-over";
|
||
}
|
||
|
||
ctx.beginPath();
|
||
ctx.moveTo(p0.x, p0.y);
|
||
ctx.lineTo(p1.x, p1.y);
|
||
ctx.stroke();
|
||
|
||
ctx.globalCompositeOperation = "source-over";
|
||
}
|
||
|
||
#redraw() {
|
||
if (!this.#ctx || !this.#canvas) return;
|
||
const ctx = this.#ctx;
|
||
const w = this.#canvas.width / devicePixelRatio;
|
||
const h = this.#canvas.height / devicePixelRatio;
|
||
|
||
ctx.clearRect(0, 0, w, h);
|
||
ctx.fillStyle = "#ffffff";
|
||
ctx.fillRect(0, 0, w, h);
|
||
|
||
for (const stroke of this.#strokes) {
|
||
if (stroke.points.length < 2) continue;
|
||
|
||
ctx.lineCap = "round";
|
||
ctx.lineJoin = "round";
|
||
ctx.strokeStyle = stroke.color;
|
||
|
||
if (stroke.tool === "eraser") {
|
||
ctx.globalCompositeOperation = "destination-out";
|
||
} else {
|
||
ctx.globalCompositeOperation = "source-over";
|
||
}
|
||
|
||
for (let i = 1; i < stroke.points.length; i++) {
|
||
const p0 = stroke.points[i - 1];
|
||
const p1 = stroke.points[i];
|
||
const pressure = (p0.pressure + p1.pressure) / 2;
|
||
ctx.lineWidth = stroke.size * (0.5 + pressure);
|
||
|
||
ctx.beginPath();
|
||
ctx.moveTo(p0.x, p0.y);
|
||
ctx.lineTo(p1.x, p1.y);
|
||
ctx.stroke();
|
||
}
|
||
}
|
||
|
||
ctx.globalCompositeOperation = "source-over";
|
||
}
|
||
|
||
#escapeHtml(text: string): string {
|
||
const div = document.createElement("div");
|
||
div.textContent = text;
|
||
return div.innerHTML;
|
||
}
|
||
|
||
#escapeAttr(text: string): string {
|
||
return text.replace(/&/g, "&").replace(/"/g, """).replace(/</g, "<").replace(/>/g, ">");
|
||
}
|
||
|
||
override disconnectedCallback() {
|
||
super.disconnectedCallback?.();
|
||
this.#resizeObserver?.disconnect();
|
||
this.#resizeObserver = null;
|
||
}
|
||
|
||
static override fromData(data: Record<string, any>): FolkMakereal {
|
||
const shape = FolkShape.fromData(data) as FolkMakereal;
|
||
return shape;
|
||
}
|
||
|
||
override toJSON() {
|
||
return {
|
||
...super.toJSON(),
|
||
type: "folk-makereal",
|
||
strokes: this.#strokes.map((s) => ({
|
||
points: s.points,
|
||
color: s.color,
|
||
size: s.size,
|
||
tool: s.tool,
|
||
})),
|
||
lastHtml: this.#lastHtml,
|
||
};
|
||
}
|
||
|
||
override applyData(data: Record<string, any>): void {
|
||
super.applyData(data);
|
||
if (data.lastHtml && this.#resultArea) {
|
||
this.#lastHtml = data.lastHtml;
|
||
this.#renderResult();
|
||
}
|
||
}
|
||
}
|