补充主题静态资源与归档模板

assets/js/share-data-builder.js

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+/**
+ * AKSRT Share Data Builder
+ *
+ * Single source of truth for share payloads. Every share surface
+ * (dropdown links, copy, WeChat bridge, poster) resolves its data through
+ * window.AksrtShareData so no script assembles title/url/cover/qrcode on its
+ * own.
+ *
+ * Canonical payload shape:
+ *   { title, url, desc, text, image, qrcode, author, date, siteName }
+ *
+ * Data is read from the nearest [data-share-*] context (falling back to
+ * #share-dropdown), then to OpenGraph/meta tags and document defaults.
+ *
+ * @package AKSRT
+ */
+
+(function () {
+  'use strict';
+
+  function metaContent(selectors) {
+    for (var i = 0; i < selectors.length; i += 1) {
+      var node = document.querySelector(selectors[i]);
+      var content = node ? node.getAttribute('content') : '';
+      if (content) return content;
+    }
+    return '';
+  }
+
+  function siteName() {
+    return (
+      metaContent(['meta[property="og:site_name"]']) ||
+      (document.querySelector('.site-title, .logo-text, .site-nav__logo') || {}).textContent ||
+      document.title ||
+      ''
+    ).trim();
+  }
+
+  /**
+   * Find the element that carries the share data attributes for a node.
+   */
+  function context(node) {
+    var source = node && typeof node.closest === 'function'
+      ? node.closest('[data-share-url], [data-share-title], [data-share-desc], [data-share-image], [data-aksrt-poster]')
+      : null;
+    return source || document.getElementById('share-dropdown');
+  }
+
+  /**
+   * Generate a QR data URL for a link, reusing the WeChat share encoder
+   * when available. Returns '' if no encoder is loaded.
+   */
+  function qrcode(url) {
+    if (window.AksrtShare && typeof window.AksrtShare.buildQrDataUrl === 'function' && url) {
+      return window.AksrtShare.buildQrDataUrl(url, 200) || '';
+    }
+    return '';
+  }
+
+  /**
+   * Resolve a canonical share payload for a triggering node.
+   *
+   * @param {Element} node Triggering element (button/link).
+   * @param {Object}  [overrides] Optional explicit overrides.
+   * @returns {Object}
+   */
+  function resolve(node, overrides) {
+    var ctx = context(node);
+
+    function attr(name) {
+      return (node && node.getAttribute && node.getAttribute(name)) ||
+        (ctx && ctx.getAttribute && ctx.getAttribute(name)) || '';
+    }
+
+    var url = attr('data-share-url') || window.location.href;
+    var payload = {
+      title: attr('data-share-title') || document.title,
+      url: url,
+      desc: attr('data-share-desc') || metaContent(['meta[property="og:description"]', 'meta[name="description"]']),
+      text: attr('data-share-text') || '',
+      image: attr('data-share-image') || metaContent(['meta[property="og:image"]']),
+      qrcode: attr('data-share-qrcode') || '',
+      author: attr('data-share-author') || '',
+      date: attr('data-share-date') || '',
+      siteName: attr('data-share-site') || siteName()
+    };
+
+    if (!payload.qrcode) {
+      payload.qrcode = qrcode(payload.url);
+    }
+
+    if (overrides && typeof overrides === 'object') {
+      Object.keys(overrides).forEach(function (key) {
+        if (overrides[key] !== undefined && overrides[key] !== null && overrides[key] !== '') {
+          payload[key] = overrides[key];
+        }
+      });
+    }
+
+    return payload;
+  }
+
+  window.AksrtShareData = {
+    resolve: resolve,
+    qrcode: qrcode,
+    siteName: siteName
+  };
+})();