1 files changed, 134 insertions, 0 deletions
diff --git a/node_modules/jsdom/lib/jsdom/living/window/History-impl.js b/node_modules/jsdom/lib/jsdom/living/window/History-impl.js
new file mode 100644
index 0000000..f8e764a
--- /dev/null
+++ b/node_modules/jsdom/lib/jsdom/living/window/History-impl.js
@@ -0,0 +1,134 @@
+"use strict";
+const DOMException = require("domexception/webidl2js-wrapper");
+const { documentBaseURLSerialized, parseURLToResultingURLRecord } = require("../helpers/document-base-url.js");
+
+// https://html.spec.whatwg.org/#history-3
+exports.implementation = class HistoryImpl {
+  constructor(globalObject, args, privateData) {
+    this._window = privateData.window;
+    this._document = privateData.document;
+    this._actAsIfLocationReloadCalled = privateData.actAsIfLocationReloadCalled;
+    this._state = null;
+
+    this._globalObject = globalObject;
+  }
+
+  _guardAgainstInactiveDocuments() {
+    if (!this._window) {
+      throw DOMException.create(this._globalObject, [
+        "History object is associated with a document that is not fully active.",
+        "SecurityError"
+      ]);
+    }
+  }
+
+  get length() {
+    this._guardAgainstInactiveDocuments();
+
+    return this._window._sessionHistory.length;
+  }
+
+  get state() {
+    this._guardAgainstInactiveDocuments();
+
+    return this._state;
+  }
+
+  go(delta) {
+    this._guardAgainstInactiveDocuments();
+
+    if (delta === 0) {
+      // When the go(delta) method is invoked, if delta is zero, the user agent must act as
+      // if the location.reload() method was called instead.
+      this._actAsIfLocationReloadCalled();
+    } else {
+      // Otherwise, the user agent must traverse the history by a delta whose value is delta
+      this._window._sessionHistory.traverseByDelta(delta);
+    }
+  }
+
+  back() {
+    this.go(-1);
+  }
+
+  forward() {
+    this.go(+1);
+  }
+
+  pushState(data, title, url) {
+    this._sharedPushAndReplaceState(data, title, url, "pushState");
+  }
+  replaceState(data, title, url) {
+    this._sharedPushAndReplaceState(data, title, url, "replaceState");
+  }
+
+  // https://html.spec.whatwg.org/#dom-history-pushstate
+  _sharedPushAndReplaceState(data, title, url, methodName) {
+    this._guardAgainstInactiveDocuments();
+
+    // TODO structured clone data
+
+    let newURL;
+    if (url !== null) {
+      // Not implemented: use of entry settings object's API base URL. Instead we just use the document base URL. The
+      // difference matters in the case of cross-frame calls.
+      newURL = parseURLToResultingURLRecord(url, this._document);
+
+      if (newURL === null) {
+        throw DOMException.create(this._globalObject, [
+          `Could not parse url argument "${url}" to ${methodName} against base URL ` +
+          `"${documentBaseURLSerialized(this._document)}".`,
+          "SecurityError"
+        ]);
+      }
+
+      if (newURL.scheme !== this._document._URL.scheme ||
+          newURL.username !== this._document._URL.username ||
+          newURL.password !== this._document._URL.password ||
+          newURL.host !== this._document._URL.host ||
+          newURL.port !== this._document._URL.port ||
+          newURL.cannotBeABaseURL !== this._document._URL.cannotBeABaseURL) {
+        throw DOMException.create(this._globalObject, [
+          `${methodName} cannot update history to a URL which differs in components other than in ` +
+          `path, query, or fragment.`,
+          "SecurityError"
+        ]);
+      }
+
+      // Not implemented: origin check (seems to only apply to documents with weird origins, e.g. sandboxed ones)
+    } else {
+      newURL = this._window._sessionHistory.currentEntry.url;
+    }
+
+    if (methodName === "pushState") {
+      this._window._sessionHistory.removeAllEntriesAfterCurrentEntry();
+
+      this._window._sessionHistory.clearHistoryTraversalTasks();
+
+      const newEntry = {
+        document: this._document,
+        stateObject: data,
+        title,
+        url: newURL
+      };
+      this._window._sessionHistory.addEntryAfterCurrentEntry(newEntry);
+      this._window._sessionHistory.updateCurrentEntry(newEntry);
+    } else {
+      const { currentEntry } = this._window._sessionHistory;
+      currentEntry.stateObject = data;
+      currentEntry.title = title;
+      currentEntry.url = newURL;
+    }
+
+    // TODO: If the current entry in the session history represents a non-GET request
+    // (e.g. it was the result of a POST submission) then update it to instead represent
+    // a GET request.
+
+    this._document._URL = newURL;
+
+    // arguably it's a bit odd that the state and latestEntry do not belong to the SessionHistory
+    // but the spec gives them to "History" and "Document" respecively.
+    this._state = data; // TODO clone again!! O_o
+    this._document._latestEntry = this._window._sessionHistory.currentEntry;
+  }
+};