Proof of concept implementation of context based history filtering.

chrome/browser/resources/history/history.js

 // Copyright (c) 2012 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.
 
 <include src="../uber/uber_utils.js">
 <include src="history_focus_manager.js">
 
 ///////////////////////////////////////////////////////////////////////////////
 // Globals:
 /** @const */ var RESULTS_PER_PAGE = 150;
@@ skipping 110 matching lines @@
  *     visit before it.
  * @param {HistoryModel} model The model object this entry belongs to.
  * @constructor
  */
 function Visit(result, continued, model) {
   this.model_ = model;
   this.title_ = result.title;
   this.url_ = result.url;
   this.domain_ = result.domain;
   this.starred_ = result.starred;
+  this.context_ = result.context;
 
   // These identify the name and type of the device on which this visit
   // occurred. They will be empty if the visit occurred on the current device.
   this.deviceName = result.deviceName;
   this.deviceType = result.deviceType;
 
   // The ID will be set according to when the visit was displayed, not
   // received. Set to -1 to show that it has not been set yet.
   this.id_ = -1;
 
@@ skipping 710 matching lines @@
   var maxResults =
       (this.rangeInDays_ == HistoryModel.Range.ALL_TIME) ? RESULTS_PER_PAGE : 0;
 
   // If there are already some visits, pick up the previous query where it
   // left off.
   var lastVisit = this.visits_.slice(-1)[0];
   var endTime = lastVisit ? lastVisit.date.getTime() : 0;
 
   $('loading-spinner').hidden = false;
   this.inFlight_ = true;
+  this.context = $('context-chooser').selectedIndex;
   chrome.send('queryHistory',
-      [this.searchText_, this.offset_, this.rangeInDays_, endTime, maxResults]);
+      [this.searchText_, this.offset_, this.rangeInDays_, endTime, this.context, maxResults]);
 };
 
 /**
  * Check to see if we have data for the given page.
  * @param {number} page The page number.
  * @return {boolean} Whether we have any data for the given page.
  * @private
  */
 HistoryModel.prototype.haveDataForPage_ = function(page) {
   return page * RESULTS_PER_PAGE < this.getSize();
@@ skipping 128 matching lines @@
 
   // If there is no search button, use the search button label as placeholder
   // text in the search field.
   if ($('search-button').offsetWidth == 0)
     $('search-field').placeholder = $('search-button').value;
 
   var self = this;
 
   $('clear-browsing-data').addEventListener('click', openClearBrowsingData);
   $('remove-selected').addEventListener('click', removeItems);
+  $('context-chooser').addEventListener('change', onChange);
 
   // Add handlers for the page navigation buttons at the bottom.
   $('newest-button').addEventListener('click', function() {
     recordUmaAction('HistoryPage_NewestHistoryClick');
     self.setPage(0);
   });
   $('newer-button').addEventListener('click', function() {
     recordUmaAction('HistoryPage_NewerHistoryClick');
     self.setPage(self.pageIndex_ - 1);
   });
@@ skipping 1119 matching lines @@
   alertOverlay.setValues(
       loadTimeData.getString('removeSelected'),
       loadTimeData.getString('deleteWarning'),
       loadTimeData.getString('deleteConfirm'),
       loadTimeData.getString('cancel'),
       okCallback,
       cancelCallback);
   showConfirmationOverlay();
 }
 
+function onChange() {
+    historyModel.reload();
+}
+
 /**
  * Click handler for the 'Remove selected items' button.
  * Confirms the deletion with the user, and then deletes the selected visits.
  */
 function removeItems() {
   recordUmaAction('HistoryPage_RemoveSelected');
   if (!loadTimeData.getBoolean('allowDeletingHistory'))
     return;
 
   var checked = $('results-display').querySelectorAll(
@@ skipping 249 matching lines @@
     historyView.reload();
 }
 
 // Add handlers to HTML elements.
 document.addEventListener('DOMContentLoaded', load);
 
 // This event lets us enable and disable menu items before the menu is shown.
 document.addEventListener('canExecute', function(e) {
   e.canExecute = true;
 });