MD Bookmarks: Proof-of-concept reimplementation of data storage/binding layer

chrome/browser/resources/md_bookmarks/types.js

Index: chrome/browser/resources/md_bookmarks/types.js
diff --git a/chrome/browser/resources/md_bookmarks/types.js b/chrome/browser/resources/md_bookmarks/types.js
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+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @fileoverview Closure typedefs for MD Bookmarks.
+ */
+
+/**
+ * A normalized version of chrome.bookmarks.BookmarkTreeNode.
+ * @typedef{{
+ *   id: string,
+ *   parentId: (string|undefined),
+ *   url: (string|undefined),
+ *   title: string,
+ *   dateAdded: (number|undefined),
+ *   dateGroupModified: (number|undefined),
+ *   unmodifiable: (string|undefined),
+ *   children: (!Array<string>|undefined),
+ * }}
+ */
+var BookmarkNode;
+
+/**
+ * @typedef{!Object<string, BookmarkNode>}
+ */
+var NodeList;
+
+/**
+ * @typedef{{
+ *   items: !Object<string, boolean>,
+ *   anchor: ?string,
+ *   count: number,
+ * }}
+ */
+var SelectionState;
+
+/**
+ * @typedef{{
+ *   term: string,
+ *   inProgress: boolean,
+ *   results: !Array<string>,
+ * }}
+ */
+var SearchState;
+
+/** @typedef {!Object<string, boolean>} */
+var ClosedFolderState;
+
+/**
+ * @typedef{{
+ *   nodes: NodeList,
+ *   selectedFolder: ?string,
+ *   closedFolders: ClosedFolderState,
+ *   search: !SearchState,
+ *   selection: !SelectionState,
+ * }}
+ */
+var BookmarksPageState;
+
+/**
+ * @typedef{{
+ *   name: string,
+ * }}
+ */
+var Action;
+
+/** @interface */
+function StoreObserver(){};
+
+/** @param {BookmarksPageState} state */
+StoreObserver.prototype.onStateChanged = function(state) {};