feat(epub): complete wxread parity scope

2026-05-26 09:19:37 +08:00
parent 23182e8b5a
commit 0e7d952fe5
31 changed files with 2619 additions and 1533 deletions
@@ -0,0 +1,93 @@
+(function() {
+  if (!window.rangy) {
+    window.rangy = {};
+  }
+  if (window.rangy.serializeRange && window.rangy.deserializeRange) {
+    return;
+  }
+
+  function normalizeHref(rawHref) {
+    if (!rawHref) { return ''; }
+    var value = String(rawHref);
+    value = value.replace(/^.*?:\/\/[^/]+\//, '');
+    value = value.split('#')[0];
+    value = value.replace(/^\/+/, '');
+    try {
+      value = decodeURIComponent(value);
+    } catch (error) {
+    }
+    return value;
+  }
+
+  function nodePath(node) {
+    var path = [];
+    var current = node;
+    while (current && current !== current.ownerDocument) {
+      var parent = current.parentNode;
+      if (!parent) { break; }
+      var index = Array.prototype.indexOf.call(parent.childNodes, current);
+      path.unshift(index);
+      current = parent;
+    }
+    return path;
+  }
+
+  function nodeFromPath(doc, path) {
+    var current = doc;
+    for (var index = 0; index < path.length; index += 1) {
+      if (!current || !current.childNodes || current.childNodes.length <= path[index]) {
+        return null;
+      }
+      current = current.childNodes[path[index]];
+    }
+    return current;
+  }
+
+  function documentContexts(rootDoc) {
+    var items = [];
+    if (!rootDoc) { return items; }
+    items.push(rootDoc);
+    var frames = rootDoc.querySelectorAll ? rootDoc.querySelectorAll('iframe') : [];
+    Array.prototype.forEach.call(frames, function(frame) {
+      try {
+        if (!frame.contentDocument) { return; }
+        documentContexts(frame.contentDocument).forEach(function(item) {
+          items.push(item);
+        });
+      } catch (error) {
+      }
+    });
+    return items;
+  }
+
+  window.rangy.serializeRange = function(range, doc) {
+    var ownerDocument = doc || (range && range.startContainer && range.startContainer.ownerDocument) || document;
+    return JSON.stringify({
+      kind: 'dom-range',
+      documentHref: normalizeHref(ownerDocument.location && ownerDocument.location.href),
+      startPath: nodePath(range.startContainer),
+      startOffset: range.startOffset,
+      endPath: nodePath(range.endContainer),
+      endOffset: range.endOffset
+    });
+  };
+
+  window.rangy.deserializeRange = function(rangeInfo, rootDoc) {
+    try {
+      var payload = typeof rangeInfo === 'string' ? JSON.parse(rangeInfo) : rangeInfo;
+      var documentHref = normalizeHref(payload.documentHref);
+      var resolvedDocument = (documentContexts(rootDoc || document).find(function(candidate) {
+        return normalizeHref(candidate.location && candidate.location.href) === documentHref;
+      })) || (rootDoc || document);
+      var startNode = nodeFromPath(resolvedDocument, payload.startPath || []);
+      var endNode = nodeFromPath(resolvedDocument, payload.endPath || []);
+      if (!startNode || !endNode) { return null; }
+      var range = resolvedDocument.createRange();
+      range.setStart(startNode, payload.startOffset || 0);
+      range.setEnd(endNode, payload.endOffset || 0);
+      return range;
+    } catch (error) {
+      return null;
+    }
+  };
+})();