xjs/layer.js

(function (global, factory) {
  const LayerClass = factory();
  // Allow usage as `Layer({...})` or `new Layer()`
  // But Layer is a class. We can wrap it in a proxy or factory function.
  
  function LayerFactory(options) {
     if (options && typeof options === 'object') {
         return LayerClass.$(options);
     }
     return new LayerClass();
  }
  
  // Copy static methods (including non-enumerable class statics like `fire` / `$`)
  // Class static methods are non-enumerable by default, so Object.assign() would miss them.
  const copyStatic = (to, from) => {
    try {
      Object.getOwnPropertyNames(from).forEach((k) => {
        if (k === 'prototype' || k === 'name' || k === 'length') return;
        const desc = Object.getOwnPropertyDescriptor(from, k);
        if (!desc) return;
        Object.defineProperty(to, k, desc);
      });
    } catch (e) {
      // Best-effort fallback
      try { Object.assign(to, from); } catch {}
    }
  };
  copyStatic(LayerFactory, LayerClass);
  // Also copy prototype for instanceof checks if needed (though tricky with factory)
  LayerFactory.prototype = LayerClass.prototype;
  
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = LayerFactory :
    typeof define === 'function' && define.amd ? define(() => LayerFactory) :
      (global.Layer = LayerFactory);
}(this, (function () {
  'use strict';

  const PREFIX = 'layer-';
  
  // Theme & Styles
  const css = `
    .${PREFIX}overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.4);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 1000;
      opacity: 0;
      transition: opacity 0.3s;
    }
    .${PREFIX}overlay.show {
      opacity: 1;
    }
    .${PREFIX}popup {
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      width: 32em;
      max-width: 90%;
      padding: 1.5em;
      display: flex;
      flex-direction: column;
      align-items: center;
      position: relative;
      z-index: 1;
      transform: scale(0.92);
      transition: transform 0.26s ease;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    .${PREFIX}overlay.show .${PREFIX}popup {
      transform: scale(1);
    }
    .${PREFIX}title {
      font-size: 1.8em;
      font-weight: 600;
      color: #333;
      margin: 0 0 0.5em;
      text-align: center;
    }
    .${PREFIX}content {
      font-size: 1.125em;
      color: #545454;
      margin-bottom: 1.5em;
      text-align: center;
      line-height: 1.5;
    }
    .${PREFIX}actions {
      display: flex;
      justify-content: center;
      gap: 1em;
      width: 100%;
    }
    .${PREFIX}button {
      border: none;
      border-radius: 4px;
      padding: 0.6em 1.2em;
      font-size: 1em;
      cursor: pointer;
      transition: background-color 0.2s, box-shadow 0.2s;
      color: #fff;
    }
    .${PREFIX}confirm {
      background-color: #3085d6;
    }
    .${PREFIX}confirm:hover {
      background-color: #2b77c0;
    }
    .${PREFIX}cancel {
      background-color: #aaa;
    }
    .${PREFIX}cancel:hover {
      background-color: #999;
    }
    .${PREFIX}icon {
      position: relative;
      box-sizing: content-box;
      width: 5em;
      height: 5em;
      margin: 2.5em auto 0.6em;
      border: 0.25em solid rgba(0, 0, 0, 0);
      border-radius: 50%;
      font-family: inherit;
      line-height: 5em;
      cursor: default;
      user-select: none;
      /* Ring sweep angles (match SweetAlert2 success feel) */
      --${PREFIX}ring-start-rotate: -45deg;
      /* End is one full turn from start so it "sweeps then settles" */
      --${PREFIX}ring-end-rotate: -405deg;
    }

    /* SVG mark content (kept), sits above the ring */
    .${PREFIX}icon svg {
      width: 100%;
      height: 100%;
      display: block;
      overflow: visible;
      position: relative;
      z-index: 3;
    }
    .${PREFIX}svg-ring,
    .${PREFIX}svg-mark {
      fill: none;
      stroke-linecap: round;
      stroke-linejoin: round;
    }
    .${PREFIX}svg-ring {
      stroke-width: 4.5;
      opacity: 0.95;
    }
    .${PREFIX}svg-mark {
      stroke-width: 6;
    }
    .${PREFIX}svg-dot {
      transform-box: fill-box;
      transform-origin: center;
    }

    /* =========================================
       "success-like" ring (shared by all icons)
       - we reuse the success ring pieces/rotation for every icon type
       - color is driven by currentColor
       ========================================= */
    .${PREFIX}icon.success { border-color: #a5dc86; color: #a5dc86; }
    .${PREFIX}icon.error { border-color: #f27474; color: #f27474; }
    .${PREFIX}icon.warning { border-color: #f8bb86; color: #f8bb86; }
    .${PREFIX}icon.info { border-color: #3fc3ee; color: #3fc3ee; }
    .${PREFIX}icon.question { border-color: #b18cff; color: #b18cff; }

    /* Per-icon ring sweep stop (same timing, different final position) */
    /* IMPORTANT: keep a full 360° sweep (end = start - 360) for the same "draw then vanish" feel */
    .${PREFIX}icon.warning { --${PREFIX}ring-start-rotate: -90deg;  --${PREFIX}ring-end-rotate: -450deg; }  /* stop at top */
    .${PREFIX}icon.error { --${PREFIX}ring-start-rotate: -135deg;   --${PREFIX}ring-end-rotate: -495deg; }  /* stop at top-left */
    .${PREFIX}icon.info { --${PREFIX}ring-start-rotate: -90deg;     --${PREFIX}ring-end-rotate: -450deg; }  /* stop at top */
    .${PREFIX}icon.question { --${PREFIX}ring-start-rotate: -135deg; --${PREFIX}ring-end-rotate: -495deg; } /* stop at top-left */

    .${PREFIX}icon .${PREFIX}success-ring {
      position: absolute;
      z-index: 2;
      top: -0.25em;
      left: -0.25em;
      box-sizing: content-box;
      width: 100%;
      height: 100%;
      border: 0.25em solid currentColor;
      opacity: 0.3;
      border-radius: 50%;
    }
    .${PREFIX}icon .${PREFIX}success-fix {
      position: absolute;
      z-index: 1;
      top: 0.5em;
      left: 1.625em;
      width: 0.4375em;
      height: 5.625em;
      transform: rotate(-45deg);
      background-color: #fff; /* adjusted at runtime to popup bg */
    }
    .${PREFIX}icon .${PREFIX}success-circular-line-left,
    .${PREFIX}icon .${PREFIX}success-circular-line-right {
      position: absolute;
      width: 3.75em;
      height: 7.5em;
      border-radius: 50%;
      background-color: #fff; /* adjusted at runtime to popup bg */
    }
    .${PREFIX}icon .${PREFIX}success-circular-line-left {
      top: -0.4375em;
      left: -2.0635em;
      transform: rotate(-45deg);
      transform-origin: 3.75em 3.75em;
      border-radius: 7.5em 0 0 7.5em;
    }
    .${PREFIX}icon .${PREFIX}success-circular-line-right {
      top: -0.6875em;
      left: 1.875em;
      transform: rotate(-45deg);
      transform-origin: 0 3.75em;
      border-radius: 0 7.5em 7.5em 0;
    }
    .${PREFIX}icon .${PREFIX}success-line-tip,
    .${PREFIX}icon .${PREFIX}success-line-long {
      display: block;
      position: absolute;
      z-index: 2;
      height: 0.3125em;
      border-radius: 0.125em;
      background-color: currentColor;
    }
    .${PREFIX}icon .${PREFIX}success-line-tip {
      top: 2.875em;
      left: 0.8125em;
      width: 1.5625em;
      transform: rotate(45deg);
    }
    .${PREFIX}icon .${PREFIX}success-line-long {
      top: 2.375em;
      right: 0.5em;
      width: 2.9375em;
      transform: rotate(-45deg);
    }

    /* Triggered when icon has .${PREFIX}icon-show */
    .${PREFIX}icon.${PREFIX}icon-show .${PREFIX}success-line-tip {
      animation: ${PREFIX}animate-success-line-tip 0.75s;
    }
    .${PREFIX}icon.${PREFIX}icon-show .${PREFIX}success-line-long {
      animation: ${PREFIX}animate-success-line-long 0.75s;
    }
    .${PREFIX}icon.${PREFIX}icon-show .${PREFIX}success-circular-line-right {
      animation: ${PREFIX}rotate-icon-circular-line 4.25s ease-in;
    }

    @keyframes ${PREFIX}animate-success-line-tip {
      0% {
        top: 1.1875em;
        left: 0.0625em;
        width: 0;
      }
      54% {
        top: 1.0625em;
        left: 0.125em;
        width: 0;
      }
      70% {
        top: 2.1875em;
        left: -0.375em;
        width: 3.125em;
      }
      84% {
        top: 3em;
        left: 1.3125em;
        width: 1.0625em;
      }
      100% {
        top: 2.8125em;
        left: 0.8125em;
        width: 1.5625em;
      }
    }
    @keyframes ${PREFIX}animate-success-line-long {
      0% {
        top: 3.375em;
        right: 2.875em;
        width: 0;
      }
      65% {
        top: 3.375em;
        right: 2.875em;
        width: 0;
      }
      84% {
        top: 2.1875em;
        right: 0;
        width: 3.4375em;
      }
      100% {
        top: 2.375em;
        right: 0.5em;
        width: 2.9375em;
      }
    }
    @keyframes ${PREFIX}rotate-icon-circular-line {
      0% { transform: rotate(var(--${PREFIX}ring-start-rotate)); }
      5% { transform: rotate(var(--${PREFIX}ring-start-rotate)); }
      12% { transform: rotate(var(--${PREFIX}ring-end-rotate)); }
      100% { transform: rotate(var(--${PREFIX}ring-end-rotate)); } /* match 12% so it "sweeps then stops" */
    }

    /* (Other icon shapes stay SVG-driven; only the ring animation is unified above) */
  `;

  // Inject Styles
  const injectStyles = () => {
    if (document.getElementById(`${PREFIX}styles`)) return;
    const styleSheet = document.createElement('style');
    styleSheet.id = `${PREFIX}styles`;
    styleSheet.textContent = css;
    document.head.appendChild(styleSheet);
  };

  class Layer {
    constructor() {
      injectStyles();
      this.params = {};
      this.dom = {};
      this.promise = null;
      this.resolve = null;
      this.reject = null;
      this._onKeydown = null;
    }

    // Constructor helper when called as function: const popup = Layer({...})
    static get isProxy() { return true; }
    
    // Static entry point
    static fire(options) {
      const instance = new Layer();
      return instance._fire(options);
    }
    
    // Chainable entry point (builder-style)
    // Example:
    //   Layer.$({ title: 'Hi' }).fire().then(...)
    //   Layer.$().config({ title: 'Hi' }).fire()
    static $(options) {
      const instance = new Layer();
      if (options !== undefined) instance.config(options);
      return instance;
    }
    
    // Chainable config helper (does not render until `.fire()` is called)
    config(options = {}) {
      // Support the same shorthand as Layer.fire(title, text, icon)
      if (typeof options === 'string') {
        options = { title: options };
        if (arguments[1]) options.text = arguments[1];
        if (arguments[2]) options.icon = arguments[2];
      }
      this.params = { ...(this.params || {}), ...options };
      return this;
    }
    
    // Instance entry point (chainable)
    fire(options) {
      const merged = (options === undefined) ? (this.params || {}) : options;
      return this._fire(merged);
    }

    _fire(options = {}) {
      if (typeof options === 'string') {
        options = { title: options };
        if (arguments[1]) options.text = arguments[1];
        if (arguments[2]) options.icon = arguments[2];
      }

      this.params = {
        title: '',
        text: '',
        icon: null,
        iconSize: null, // e.g. '6em' / '72px'
        confirmButtonText: 'OK',
        cancelButtonText: 'Cancel',
        showCancelButton: false,
        confirmButtonColor: '#3085d6',
        cancelButtonColor: '#aaa',
        closeOnClickOutside: true,
        closeOnEsc: true,
        iconAnimation: true,
        popupAnimation: true,
        ...options
      };

      this.promise = new Promise((resolve, reject) => {
        this.resolve = resolve;
        this.reject = reject;
      });

      this._render();
      return this.promise;
    }

    static _getXjs() {
      // Prefer xjs, fallback to animal (compat)
      const g = (typeof window !== 'undefined') ? window : (typeof globalThis !== 'undefined' ? globalThis : null);
      if (!g) return null;
      const x = g.xjs || g.animal;
      return (typeof x === 'function') ? x : null;
    }

    _render() {
      // Remove existing if any
      const existing = document.querySelector(`.${PREFIX}overlay`);
      if (existing) existing.remove();

      // Create Overlay
      this.dom.overlay = document.createElement('div');
      this.dom.overlay.className = `${PREFIX}overlay`;

      // Create Popup
      this.dom.popup = document.createElement('div');
      this.dom.popup.className = `${PREFIX}popup`;
      this.dom.overlay.appendChild(this.dom.popup);

      // Icon
      if (this.params.icon) {
        this.dom.icon = this._createIcon(this.params.icon);
        this.dom.popup.appendChild(this.dom.icon);
      }

      // Title
      if (this.params.title) {
        this.dom.title = document.createElement('h2');
        this.dom.title.className = `${PREFIX}title`;
        this.dom.title.textContent = this.params.title;
        this.dom.popup.appendChild(this.dom.title);
      }

      // Content (Text / HTML / Element)
      if (this.params.text || this.params.html || this.params.content) {
        this.dom.content = document.createElement('div');
        this.dom.content.className = `${PREFIX}content`;
        
        if (this.params.content) {
           // DOM Element or Selector
           let el = this.params.content;
           if (typeof el === 'string') el = document.querySelector(el);
           if (el instanceof Element) this.dom.content.appendChild(el); 
        } else if (this.params.html) {
           this.dom.content.innerHTML = this.params.html;
        } else {
           this.dom.content.textContent = this.params.text;
        }
        
        this.dom.popup.appendChild(this.dom.content);
      }

      // Actions
      this.dom.actions = document.createElement('div');
      this.dom.actions.className = `${PREFIX}actions`;
      
      // Cancel Button
      if (this.params.showCancelButton) {
        this.dom.cancelBtn = document.createElement('button');
        this.dom.cancelBtn.className = `${PREFIX}button ${PREFIX}cancel`;
        this.dom.cancelBtn.textContent = this.params.cancelButtonText;
        this.dom.cancelBtn.style.backgroundColor = this.params.cancelButtonColor;
        this.dom.cancelBtn.onclick = () => this._close(false);
        this.dom.actions.appendChild(this.dom.cancelBtn);
      }

      // Confirm Button
      this.dom.confirmBtn = document.createElement('button');
      this.dom.confirmBtn.className = `${PREFIX}button ${PREFIX}confirm`;
      this.dom.confirmBtn.textContent = this.params.confirmButtonText;
      this.dom.confirmBtn.style.backgroundColor = this.params.confirmButtonColor;
      this.dom.confirmBtn.onclick = () => this._close(true);
      this.dom.actions.appendChild(this.dom.confirmBtn);

      this.dom.popup.appendChild(this.dom.actions);

      // Event Listeners
      if (this.params.closeOnClickOutside) {
        this.dom.overlay.addEventListener('click', (e) => {
          if (e.target === this.dom.overlay) {
            this._close(null); // Dismiss
          }
        });
      }

      document.body.appendChild(this.dom.overlay);

      // Animation
      requestAnimationFrame(() => {
        this.dom.overlay.classList.add('show');
        this._didOpen();
      });
    }

    _createIcon(type) {
      const icon = document.createElement('div');
      icon.className = `${PREFIX}icon ${type}`;

      const applyIconSize = (mode) => {
        if (!(this.params && this.params.iconSize)) return;
        try {
          const raw = this.params.iconSize;
          const s = String(raw).trim();
          if (!s) return;
          // For SweetAlert2-style success icon, scale via font-size so all `em`-based
          // parts remain proportional.
          if (mode === 'font') {
            const m = s.match(/^(-?\d*\.?\d+)\s*(px|em|rem)$/i);
            if (m) {
              const n = parseFloat(m[1]);
              const unit = m[2];
              if (Number.isFinite(n) && n > 0) {
                icon.style.fontSize = (n / 5) + unit; // icon is 5em wide/tall
                return;
              }
            }
          }
          // Fallback: directly size the box (works great for SVG icons)
          icon.style.width = s;
          icon.style.height = s;
        } catch {}
      };
      
      const svgNs = 'http://www.w3.org/2000/svg';
      if (type === 'success') {
        // SweetAlert2-compatible DOM structure (circle + tick) for exact style parity
        //   <div class="...success-circular-line-left"></div>
        //   <span class="...success-line-tip"></span>
        //   <span class="...success-line-long"></span>
        //   <div class="...success-ring"></div>
        //   <div class="...success-fix"></div>
        //   <div class="...success-circular-line-right"></div>
        const left = document.createElement('div');
        left.className = `${PREFIX}success-circular-line-left`;
        const tip = document.createElement('span');
        tip.className = `${PREFIX}success-line-tip`;
        const long = document.createElement('span');
        long.className = `${PREFIX}success-line-long`;
        const ring = document.createElement('div');
        ring.className = `${PREFIX}success-ring`;
        const fix = document.createElement('div');
        fix.className = `${PREFIX}success-fix`;
        const right = document.createElement('div');
        right.className = `${PREFIX}success-circular-line-right`;
        icon.appendChild(left);
        icon.appendChild(tip);
        icon.appendChild(long);
        icon.appendChild(ring);
        icon.appendChild(fix);
        icon.appendChild(right);

        applyIconSize('font');
        return icon;
      }

      if (type === 'error' || type === 'warning' || type === 'info' || type === 'question') {
        // Use the same "success-like" ring parts for every icon
        const left = document.createElement('div');
        left.className = `${PREFIX}success-circular-line-left`;
        const ring = document.createElement('div');
        ring.className = `${PREFIX}success-ring`;
        const fix = document.createElement('div');
        fix.className = `${PREFIX}success-fix`;
        const right = document.createElement('div');
        right.className = `${PREFIX}success-circular-line-right`;
        icon.appendChild(left);
        icon.appendChild(ring);
        icon.appendChild(fix);
        icon.appendChild(right);

        applyIconSize('font');

        // SVG only draws the inner symbol (no SVG ring)
        const svg = document.createElementNS(svgNs, 'svg');
        svg.setAttribute('viewBox', '0 0 80 80');
        svg.setAttribute('aria-hidden', 'true');
        svg.setAttribute('focusable', 'false');

        const addPath = (d, extraClass) => {
          const p = document.createElementNS(svgNs, 'path');
          p.setAttribute('d', d);
          p.setAttribute('class', `${PREFIX}svg-mark ${PREFIX}svg-draw${extraClass ? ' ' + extraClass : ''}`);
          p.setAttribute('stroke', 'currentColor');
          svg.appendChild(p);
          return p;
        };

        if (type === 'error') {
          addPath('M28 28 L52 52', `${PREFIX}svg-error-left`);
          addPath('M52 28 L28 52', `${PREFIX}svg-error-right`);
        } else if (type === 'warning') {
          addPath('M40 20 L40 46', `${PREFIX}svg-warning-line`);
          const dot = document.createElementNS(svgNs, 'circle');
          dot.setAttribute('class', `${PREFIX}svg-dot`);
          dot.setAttribute('cx', '40');
          dot.setAttribute('cy', '58');
          dot.setAttribute('r', '3.2');
          dot.setAttribute('fill', 'currentColor');
          svg.appendChild(dot);
        } else if (type === 'info') {
          addPath('M40 34 L40 56', `${PREFIX}svg-info-line`);
          const dot = document.createElementNS(svgNs, 'circle');
          dot.setAttribute('class', `${PREFIX}svg-dot`);
          dot.setAttribute('cx', '40');
          dot.setAttribute('cy', '25');
          dot.setAttribute('r', '3.2');
          dot.setAttribute('fill', 'currentColor');
          svg.appendChild(dot);
        } else if (type === 'question') {
          addPath('M30 30 C30 23 35 19 42 19 C49 19 54 23 54 30 C54 36 50 39 46 41 C43 42 42 44 42 48 L42 52', `${PREFIX}svg-question`);
          const dot = document.createElementNS(svgNs, 'circle');
          dot.setAttribute('class', `${PREFIX}svg-dot`);
          dot.setAttribute('cx', '42');
          dot.setAttribute('cy', '61');
          dot.setAttribute('r', '3.2');
          dot.setAttribute('fill', 'currentColor');
          svg.appendChild(dot);
        }

        icon.appendChild(svg);
        return icon;
      }

      // Default to SVG icons for other/custom types
      applyIconSize('box');

      const svg = document.createElementNS(svgNs, 'svg');
      svg.setAttribute('viewBox', '0 0 80 80');
      svg.setAttribute('aria-hidden', 'true');
      svg.setAttribute('focusable', 'false');

      const ring = document.createElementNS(svgNs, 'circle');
      ring.setAttribute('class', `${PREFIX}svg-ring ${PREFIX}svg-draw`);
      ring.setAttribute('cx', '40');
      ring.setAttribute('cy', '40');
      ring.setAttribute('r', '34');
      ring.setAttribute('stroke', 'currentColor');

      svg.appendChild(ring);

      const addPath = (d, extraClass) => {
        const p = document.createElementNS(svgNs, 'path');
        p.setAttribute('d', d);
        p.setAttribute('class', `${PREFIX}svg-mark ${PREFIX}svg-draw${extraClass ? ' ' + extraClass : ''}`);
        p.setAttribute('stroke', 'currentColor');
        svg.appendChild(p);
        return p;
      };

      if (type === 'error') {
        addPath('M28 28 L52 52', `${PREFIX}svg-error-left`);
        addPath('M52 28 L28 52', `${PREFIX}svg-error-right`);
      } else if (type === 'warning') {
        addPath('M40 20 L40 46', `${PREFIX}svg-warning-line`);
        const dot = document.createElementNS(svgNs, 'circle');
        dot.setAttribute('class', `${PREFIX}svg-dot`);
        dot.setAttribute('cx', '40');
        dot.setAttribute('cy', '58');
        dot.setAttribute('r', '3.2');
        dot.setAttribute('fill', 'currentColor');
        svg.appendChild(dot);
      } else if (type === 'info') {
        addPath('M40 34 L40 56', `${PREFIX}svg-info-line`);
        const dot = document.createElementNS(svgNs, 'circle');
        dot.setAttribute('class', `${PREFIX}svg-dot`);
        dot.setAttribute('cx', '40');
        dot.setAttribute('cy', '25');
        dot.setAttribute('r', '3.2');
        dot.setAttribute('fill', 'currentColor');
        svg.appendChild(dot);
      } else if (type === 'question') {
        // Question mark (single stroke + dot)
        addPath('M30 30 C30 23 35 19 42 19 C49 19 54 23 54 30 C54 36 50 39 46 41 C43 42 42 44 42 48 L42 52', `${PREFIX}svg-question`);
        const dot = document.createElementNS(svgNs, 'circle');
        dot.setAttribute('class', `${PREFIX}svg-dot`);
        dot.setAttribute('cx', '42');
        dot.setAttribute('cy', '61');
        dot.setAttribute('r', '3.2');
        dot.setAttribute('fill', 'currentColor');
        svg.appendChild(dot);
      } else {
        // Fallback: ring only
      }

      icon.appendChild(svg);
      
      return icon;
    }

    _adjustRingBackgroundColor() {
      try {
        const icon = this.dom && this.dom.icon;
        const popup = this.dom && this.dom.popup;
        if (!icon || !popup) return;
        const bg = getComputedStyle(popup).backgroundColor;
        const parts = icon.querySelectorAll(`.${PREFIX}success-circular-line-left, .${PREFIX}success-circular-line-right, .${PREFIX}success-fix`);
        parts.forEach((el) => {
          try { el.style.backgroundColor = bg; } catch {}
        });
      } catch {}
    }

    _didOpen() {
      // Keyboard close (ESC)
      if (this.params.closeOnEsc) {
        this._onKeydown = (e) => {
          if (!e) return;
          if (e.key === 'Escape') this._close(null);
        };
        document.addEventListener('keydown', this._onKeydown);
      }

      // Keep the "success-like" ring perfectly blended with popup bg
      this._adjustRingBackgroundColor();

      // Popup animation (optional)
      if (this.params.popupAnimation) {
        const X = Layer._getXjs();
        if (X && this.dom.popup) {
          // Override the CSS scale transition with a spring-ish entrance.
          try {
            this.dom.popup.style.transition = 'none';
            this.dom.popup.style.transform = 'scale(0.92)';
            X(this.dom.popup).animate({
              scale: [0.92, 1],
              y: [-6, 0],
              duration: 520,
              easing: { stiffness: 260, damping: 16 }
            });
          } catch {}
        }
      }

      // Icon SVG draw animation
      if (this.params.iconAnimation) {
        this._animateIcon();
      }

      // User hook (SweetAlert-ish naming)
      try {
        if (typeof this.params.didOpen === 'function') this.params.didOpen(this.dom.popup);
      } catch {}
    }

    _animateIcon() {
      const icon = this.dom.icon;
      if (!icon) return;
      const type = (this.params && this.params.icon) || '';

      const ringTypes = new Set(['success', 'error', 'warning', 'info', 'question']);

      // Ring animation (same as success) for all built-in icons
      if (ringTypes.has(type)) this._adjustRingBackgroundColor();
      try { icon.classList.remove(`${PREFIX}icon-show`); } catch {}
      requestAnimationFrame(() => {
        try { icon.classList.add(`${PREFIX}icon-show`); } catch {}
      });

      // Success tick is CSS-driven; others still draw their SVG mark after the ring starts.
      if (type === 'success') return;

      const X = Layer._getXjs();
      if (!X) return;

      const svg = icon.querySelector('svg');
      if (!svg) return;

      const marks = Array.from(svg.querySelectorAll(`.${PREFIX}svg-mark`));
      const dot = svg.querySelector(`.${PREFIX}svg-dot`);

      // If this is a built-in icon, keep the SweetAlert-like order:
      // ring sweep first (~0.51s), then draw the inner mark.
      const baseDelay = ringTypes.has(type) ? 520 : 0;

      if (type === 'error') {
        // Draw order: left-top -> right-bottom, then right-top -> left-bottom
        // NOTE: A tiny delay (like 70ms) looks simultaneous; make it strictly sequential.
        const a = svg.querySelector(`.${PREFIX}svg-error-left`) || marks[0];  // M28 28 L52 52
        const b = svg.querySelector(`.${PREFIX}svg-error-right`) || marks[1]; // M52 28 L28 52
        const dur = 320;
        const gap = 60;
        try { if (a) X(a).draw({ duration: dur, easing: 'ease-out', delay: baseDelay }); } catch {}
        try { if (b) X(b).draw({ duration: dur, easing: 'ease-out', delay: baseDelay + dur + gap }); } catch {}
      } else {
        // warning / info / question (single stroke) or custom SVG symbols
        marks.forEach((m, i) => {
          try { X(m).draw({ duration: 420, easing: 'ease-out', delay: baseDelay + i * 60 }); } catch {}
        });
      }

      if (dot) {
        try {
          dot.style.opacity = '0';
          // Keep dot pop after the ring begins
          const d = baseDelay + 140;
          if (type === 'info') {
            X(dot).animate({ opacity: [0, 1], y: [-8, 0], scale: [0.2, 1], duration: 420, delay: d, easing: { stiffness: 300, damping: 14 } });
          } else {
            X(dot).animate({ opacity: [0, 1], scale: [0.2, 1], duration: 320, delay: d, easing: { stiffness: 320, damping: 18 } });
          }
        } catch {}
      }
    }

    _close(isConfirmed) {
      this.dom.overlay.classList.remove('show');
      setTimeout(() => {
        if (this.dom.overlay && this.dom.overlay.parentNode) {
          this.dom.overlay.parentNode.removeChild(this.dom.overlay);
        }
      }, 300);

      if (this._onKeydown) {
        try { document.removeEventListener('keydown', this._onKeydown); } catch {}
        this._onKeydown = null;
      }

      try {
        if (typeof this.params.willClose === 'function') this.params.willClose(this.dom.popup);
      } catch {}
      try {
        if (typeof this.params.didClose === 'function') this.params.didClose();
      } catch {}

      if (isConfirmed === true) {
        this.resolve({ isConfirmed: true, isDenied: false, isDismissed: false });
      } else if (isConfirmed === false) {
        this.resolve({ isConfirmed: false, isDenied: false, isDismissed: true, dismiss: 'cancel' });
      } else {
        this.resolve({ isConfirmed: false, isDenied: false, isDismissed: true, dismiss: 'backdrop' });
      }
    }
  }

  return Layer;

})));