MD Bookmarks: Remove old bookmark data store

chrome/browser/resources/md_bookmarks/bookmarks_store.js

-// 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 A singleton datastore for the Bookmarks page. Page state is
- * publicly readable, but can only be modified by dispatching an Action to
- * the store.
- */
-
-cr.define('bookmarks', function() {
-  /** @constructor */
-  function Store() {
-    /** @type {!BookmarksPageState} */
-    this.data_ = bookmarks.util.createEmptyState();
-    /** @type {boolean} */
-    this.initialized_ = false;
-    /** @type {!Array<!Action>} */
-    this.queuedActions_ = [];
-    /** @type {!Array<!StoreObserver>} */
-    this.observers_ = [];
-  }
-
-  Store.prototype = {
-    /**
-     * @param {!BookmarksPageState} initialState
-     */
-    init: function(initialState) {
-      this.data_ = initialState;
-
-      this.queuedActions_.forEach(function(action) {
-        this.reduce_(action);
-      }.bind(this));
-
-      this.initialized_ = true;
-      this.notifyObservers_(this.data_);
-    },
-
-    /** @type {!BookmarksPageState} */
-    get data() {
-      return this.data_;
-    },
-
-    /** @return {boolean} */
-    isInitialized: function() {
-      return this.initialized_;
-    },
-
-    /** @param {!StoreObserver} observer */
-    addObserver: function(observer) {
-      this.observers_.push(observer);
-    },
-
-    /** @param {!StoreObserver} observer */
-    removeObserver: function(observer) {
-      var index = this.observers_.indexOf(observer);
-      this.observers_.splice(index, 1);
-    },
-
-    /**
-     * Transition to a new UI state based on the supplied |action|, and notify
-     * observers of the change. If the Store has not yet been initialized, the
-     * action will be queued and performed upon initialization.
-     * @param {Action} action
-     */
-    handleAction: function(action) {
-      if (!this.initialized_) {
-        this.queuedActions_.push(action);
-        return;
-      }
-
-      this.reduce_(action);
-      this.notifyObservers_(this.data_);
-    },
-
-    /**
-     * @param {Action} action
-     * @private
-     */
-    reduce_: function(action) {
-      this.data_ = bookmarks.reduceAction(this.data_, action);
-    },
-
-    /**
-     * @param {!BookmarksPageState} state
-     * @private
-     */
-    notifyObservers_: function(state) {
-      this.observers_.forEach(function(o) {
-        o.onStateChanged(state);
-      });
-    },
-  };
-
-  cr.addSingletonGetter(Store);
-
-  return {
-    Store: Store,
-  };
-});