MD History: Remove list-container and list-behavior

chrome/browser/resources/md_history/list_container.js

-// Copyright 2016 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.
-
-Polymer({
-  is: 'history-list-container',
-
-  properties: {
-    /** @type {!QueryState} */
-    queryState: Object,
-
-    /** @type {!QueryResult} */
-    queryResult: Object,
-
-    /**
-     * @private {?{
-     *   index: number,
-     *   item: !HistoryEntry,
-     *   path: string,
-     *   target: !HTMLElement
-     * }}
-     */
-    actionMenuModel_: Object,
-  },
-
-  listeners: {
-    'open-menu': 'openMenu_',
-  },
-
-  /**
-   * @param {HistoryQuery} info An object containing information about the
-   *    query.
-   * @param {!Array<!HistoryEntry>} results A list of results.
-   */
-  historyResult: function(info, results) {
-    this.initializeResults_(info, results);
-    this.closeMenu_();
-
-    if (info.term && !this.queryState.incremental) {
-      Polymer.IronA11yAnnouncer.requestAvailability();
-      this.fire('iron-announce', {
-        text:
-            md_history.HistoryItem.searchResultsTitle(results.length, info.term)
-      });
-    }
-
-    var list = /** @type {HistoryListBehavior} */ this.getSelectedList_();
-    list.addNewResults(results, this.queryState.incremental, info.finished);
-  },
-
-  historyDeleted: function() {
-    // Do not reload the list when there are items checked.
-    if (this.getSelectedItemCount() > 0)
-      return;
-
-    // Reload the list with current search state.
-    this.fire('query-history', false);
-  },
-
-  /** @return {Element} */
-  getContentScrollTarget: function() {
-    return this.getSelectedList_();
-  },
-
-  /** @return {number} */
-  getSelectedItemCount: function() {
-    return this.getSelectedList_().selectedPaths.size;
-  },
-
-  unselectAllItems: function(count) {
-    var selectedList = this.getSelectedList_();
-    if (selectedList)
-      selectedList.unselectAllItems(count);
-  },
-
-  /**
-   * Delete all the currently selected history items. Will prompt the user with
-   * a dialog to confirm that the deletion should be performed.
-   */
-  deleteSelectedWithPrompt: function() {
-    if (!loadTimeData.getBoolean('allowDeletingHistory'))
-      return;
-
-    var browserService = md_history.BrowserService.getInstance();
-    browserService.recordAction('RemoveSelected');
-    if (this.queryState.searchTerm != '')
-      browserService.recordAction('SearchResultRemove');
-    this.$.dialog.get().showModal();
-
-    // TODO(dbeam): remove focus flicker caused by showModal() + focus().
-    this.$$('.action-button').focus();
-  },
-
-  /**
-   * @param {HistoryQuery} info
-   * @param {!Array<HistoryEntry>} results
-   * @private
-   */
-  initializeResults_: function(info, results) {
-    if (results.length == 0)
-      return;
-
-    var currentDate = results[0].dateRelativeDay;
-
-    for (var i = 0; i < results.length; i++) {
-      // Sets the default values for these fields to prevent undefined types.
-      results[i].selected = false;
-      results[i].readableTimestamp =
-          info.term == '' ? results[i].dateTimeOfDay : results[i].dateShort;
-
-      if (results[i].dateRelativeDay != currentDate) {
-        currentDate = results[i].dateRelativeDay;
-      }
-    }
-  },
-
-  /** @private */
-  onDialogConfirmTap_: function() {
-    md_history.BrowserService.getInstance().recordAction(
-        'ConfirmRemoveSelected');
-
-    this.getSelectedList_().deleteSelected();
-    var dialog = assert(this.$.dialog.getIfExists());
-    dialog.close();
-  },
-
-  /** @private */
-  onDialogCancelTap_: function() {
-    md_history.BrowserService.getInstance().recordAction(
-        'CancelRemoveSelected');
-
-    var dialog = assert(this.$.dialog.getIfExists());
-    dialog.close();
-  },
-
-  /**
-   * Closes the overflow menu.
-   * @private
-   */
-  closeMenu_: function() {
-    var menu = this.$.sharedMenu.getIfExists();
-    if (menu && menu.open) {
-      this.actionMenuModel_ = null;
-      menu.close();
-    }
-  },
-
-  /**
-   * Opens the overflow menu.
-   * @param {{detail: {
-   *    index: number, item: !HistoryEntry,
-   *    path: string, target: !HTMLElement
-   * }}} e
-   * @private
-   */
-  openMenu_: function(e) {
-    var target = e.detail.target;
-    this.actionMenuModel_ = e.detail;
-    var menu = /** @type {CrSharedMenuElement} */ this.$.sharedMenu.get();
-    menu.showAt(target);
-  },
-
-  /** @private */
-  onMoreFromSiteTap_: function() {
-    md_history.BrowserService.getInstance().recordAction(
-        'EntryMenuShowMoreFromSite');
-
-    var menu = assert(this.$.sharedMenu.getIfExists());
-    this.fire('change-query', {search: this.actionMenuModel_.item.domain});
-    this.actionMenuModel_ = null;
-    this.closeMenu_();
-  },
-
-  /** @private */
-  onRemoveFromHistoryTap_: function() {
-    var browserService = md_history.BrowserService.getInstance();
-    browserService.recordAction('EntryMenuRemoveFromHistory');
-    var menu = assert(this.$.sharedMenu.getIfExists());
-    var itemData = this.actionMenuModel_;
-    browserService.deleteItems([itemData.item]).then(function(items) {
-      // This unselect-all resets the toolbar when deleting a selected item
-      // and clears selection state which can be invalid if items move
-      // around during deletion.
-      // TODO(tsergeant): Make this automatic based on observing list
-      // modifications.
-      this.fire('unselect-all');
-      this.getSelectedList_().removeItemsByPath([itemData.path]);
-
-      var index = itemData.index;
-      if (index == undefined)
-        return;
-
-      var browserService = md_history.BrowserService.getInstance();
-      browserService.recordHistogram(
-          'HistoryPage.RemoveEntryPosition',
-          Math.min(index, UMA_MAX_BUCKET_VALUE), UMA_MAX_BUCKET_VALUE);
-      if (index <= UMA_MAX_SUBSET_BUCKET_VALUE) {
-        browserService.recordHistogram(
-            'HistoryPage.RemoveEntryPositionSubset', index,
-            UMA_MAX_SUBSET_BUCKET_VALUE);
-      }
-    }.bind(this));
-    this.closeMenu_();
-  },
-
-  /**
-   * @return {Element}
-   * @private
-   */
-  getSelectedList_: function() {
-    return this.$['infinite-list'];
-  },
-
-  /** @private */
-  canDeleteHistory_: function() {
-    return loadTimeData.getBoolean('allowDeletingHistory');
-  }
-});