mirror of
https://github.com/mozilla/gecko-dev.git
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1233 lines
43 KiB
JavaScript
1233 lines
43 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 sts=2 expandtab
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Shawn Wilsher <me@shawnwilsher.com> (Original Author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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Components.utils.import("resource://gre/modules/Services.jsm");
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////////////////////////////////////////////////////////////////////////////////
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//// Constants
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cr = Components.results;
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// This SQL query fragment provides the following:
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// - whether the entry is bookmarked (kQueryIndexBookmarked)
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// - the bookmark title, if it is a bookmark (kQueryIndexBookmarkTitle)
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// - the tags associated with a bookmarked entry (kQueryIndexTags)
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const kBookTagSQLFragment =
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"EXISTS(SELECT 1 FROM moz_bookmarks WHERE fk = h.id) AS bookmarked, "
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+ "( "
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+ "SELECT title FROM moz_bookmarks WHERE fk = h.id AND title NOTNULL "
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+ "ORDER BY lastModified DESC LIMIT 1 "
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+ ") AS btitle, "
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+ "( "
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+ "SELECT GROUP_CONCAT(t.title, ',') "
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+ "FROM moz_bookmarks b "
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+ "JOIN moz_bookmarks t ON t.id = b.parent AND t.parent = :parent "
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+ "WHERE b.fk = h.id "
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+ ") AS tags";
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// observer topics
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const kTopicShutdown = "places-shutdown";
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const kPrefChanged = "nsPref:changed";
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// Match type constants. These indicate what type of search function we should
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// be using.
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const MATCH_ANYWHERE = Ci.mozIPlacesAutoComplete.MATCH_ANYWHERE;
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const MATCH_BOUNDARY_ANYWHERE = Ci.mozIPlacesAutoComplete.MATCH_BOUNDARY_ANYWHERE;
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const MATCH_BOUNDARY = Ci.mozIPlacesAutoComplete.MATCH_BOUNDARY;
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const MATCH_BEGINNING = Ci.mozIPlacesAutoComplete.MATCH_BEGINNING;
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// AutoComplete index constants. All AutoComplete queries will provide these
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// columns in this order.
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const kQueryIndexURL = 0;
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const kQueryIndexTitle = 1;
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const kQueryIndexFaviconURL = 2;
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const kQueryIndexBookmarked = 3;
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const kQueryIndexBookmarkTitle = 4;
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const kQueryIndexTags = 5;
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const kQueryIndexVisitCount = 6;
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const kQueryIndexTyped = 7;
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const kQueryIndexPlaceId = 8;
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const kQueryIndexQueryType = 9;
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const kQueryIndexOpenPageCount = 10;
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// AutoComplete query type constants. Describes the various types of queries
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// that we can process.
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const kQueryTypeKeyword = 0;
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const kQueryTypeFiltered = 1;
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// This separator is used as an RTL-friendly way to split the title and tags.
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// It can also be used by an nsIAutoCompleteResult consumer to re-split the
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// "comment" back into the title and the tag.
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const kTitleTagsSeparator = " \u2013 ";
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const kBrowserUrlbarBranch = "browser.urlbar.";
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////////////////////////////////////////////////////////////////////////////////
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//// Helpers
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/**
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* Initializes our temporary table on a given database.
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*
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* @param aDatabase
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* The mozIStorageConnection to set up the temp table on.
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*/
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function initTempTable(aDatabase)
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{
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// Note: this should be kept up-to-date with the definition in
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// nsPlacesTables.h.
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let stmt = aDatabase.createAsyncStatement(
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"CREATE TEMP TABLE moz_openpages_temp ( "
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+ " url TEXT PRIMARY KEY "
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+ ", open_count INTEGER "
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+ ") "
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);
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stmt.executeAsync();
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stmt.finalize();
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// Note: this should be kept up-to-date with the definition in
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// nsPlacesTriggers.h.
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stmt = aDatabase.createAsyncStatement(
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"CREATE TEMPORARY TRIGGER moz_openpages_temp_afterupdate_trigger "
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+ "AFTER UPDATE OF open_count ON moz_openpages_temp FOR EACH ROW "
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+ "WHEN NEW.open_count = 0 "
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+ "BEGIN "
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+ "DELETE FROM moz_openpages_temp "
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+ "WHERE url = NEW.url; "
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+ "END "
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);
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stmt.executeAsync();
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stmt.finalize();
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}
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////////////////////////////////////////////////////////////////////////////////
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//// AutoCompleteStatementCallbackWrapper class
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/**
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* Wraps a callback and ensures that handleCompletion is not dispatched if the
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* query is no longer tracked.
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*
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* @param aCallback
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* A reference to a nsPlacesAutoComplete.
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* @param aDBConnection
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* The database connection to execute the queries on.
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*/
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function AutoCompleteStatementCallbackWrapper(aCallback,
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aDBConnection)
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{
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this._callback = aCallback;
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this._db = aDBConnection;
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}
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AutoCompleteStatementCallbackWrapper.prototype = {
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//////////////////////////////////////////////////////////////////////////////
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//// mozIStorageStatementCallback
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handleResult: function ACSCW_handleResult(aResultSet)
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{
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this._callback.handleResult.apply(this._callback, arguments);
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},
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handleError: function ACSCW_handleError(aError)
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{
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this._callback.handleError.apply(this._callback, arguments);
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},
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handleCompletion: function ACSCW_handleCompletion(aReason)
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{
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// Only dispatch handleCompletion if we are not done searching and are a
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// pending search.
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let callback = this._callback;
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if (!callback.isSearchComplete() && callback.isPendingSearch(this._handle))
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callback.handleCompletion.apply(callback, arguments);
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},
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//////////////////////////////////////////////////////////////////////////////
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//// AutoCompleteStatementCallbackWrapper
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/**
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* Executes the specified query asynchronously. This object will notify
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* this._callback if we should notify (logic explained in handleCompletion).
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*
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* @param aQueries
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* The queries to execute asynchronously.
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* @return a mozIStoragePendingStatement that can be used to cancel the
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* queries.
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*/
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executeAsync: function ACSCW_executeAsync(aQueries)
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{
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return this._handle = this._db.executeAsync(aQueries, aQueries.length,
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this);
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},
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//////////////////////////////////////////////////////////////////////////////
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//// nsISupports
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QueryInterface: XPCOMUtils.generateQI([
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Ci.mozIStorageStatementCallback,
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])
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};
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////////////////////////////////////////////////////////////////////////////////
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//// nsPlacesAutoComplete class
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function nsPlacesAutoComplete()
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{
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//////////////////////////////////////////////////////////////////////////////
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//// Shared Constants for Smart Getters
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// TODO bug 412736 in case of a frecency tie, break it with h.typed and
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// h.visit_count which is better than nothing. This is slow, so not doing it
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// yet...
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const SQL_BASE = "SELECT h.url, h.title, f.url, " + kBookTagSQLFragment + ", "
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+ "h.visit_count, h.typed, h.id, :query_type, "
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+ "t.open_count "
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+ "FROM moz_places h "
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+ "LEFT JOIN moz_favicons f ON f.id = h.favicon_id "
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+ "LEFT JOIN moz_openpages_temp t ON t.url = h.url "
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+ "WHERE h.frecency <> 0 "
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+ "AND AUTOCOMPLETE_MATCH(:searchString, h.url, "
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+ "IFNULL(btitle, h.title), tags, "
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+ "h.visit_count, h.typed, "
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+ "bookmarked, t.open_count, "
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+ ":matchBehavior, :searchBehavior) "
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+ "{ADDITIONAL_CONDITIONS} "
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+ "ORDER BY h.frecency DESC, h.id DESC "
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+ "LIMIT :maxResults";
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//////////////////////////////////////////////////////////////////////////////
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//// Smart Getters
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XPCOMUtils.defineLazyGetter(this, "_db", function() {
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// Get a cloned, read-only version of the database. We'll only ever write
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// to our own in-memory temp table, and having a cloned copy means we do not
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// run the risk of our queries taking longer due to the main database
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// connection performing a long-running task.
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let db = Cc["@mozilla.org/browser/nav-history-service;1"].
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getService(Ci.nsPIPlacesDatabase).
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DBConnection.
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clone(true);
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// Create our in-memory tables for tab tracking.
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initTempTable(db);
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// Populate the table with current open pages cache contents.
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if (this._openPagesCache.length > 0) {
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// Avoid getter re-entrance from the _registerOpenPageQuery lazy getter.
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let stmt = this._registerOpenPageQuery =
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db.createAsyncStatement(this._registerOpenPageQuerySQL);
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let params = stmt.newBindingParamsArray();
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for (let i = 0; i < this._openPagesCache.length; i++) {
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let bp = params.newBindingParams();
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bp.bindByName("page_url", this._openPagesCache[i]);
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params.addParams(bp);
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}
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stmt.bindParameters(params);
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stmt.executeAsync();
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delete this._openPagesCache;
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}
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return db;
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});
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XPCOMUtils.defineLazyServiceGetter(this, "_bh",
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"@mozilla.org/browser/global-history;2",
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"nsIBrowserHistory");
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XPCOMUtils.defineLazyServiceGetter(this, "_textURIService",
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"@mozilla.org/intl/texttosuburi;1",
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"nsITextToSubURI");
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XPCOMUtils.defineLazyServiceGetter(this, "_bs",
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"@mozilla.org/browser/nav-bookmarks-service;1",
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"nsINavBookmarksService");
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XPCOMUtils.defineLazyServiceGetter(this, "_ioService",
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"@mozilla.org/network/io-service;1",
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"nsIIOService");
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XPCOMUtils.defineLazyServiceGetter(this, "_faviconService",
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"@mozilla.org/browser/favicon-service;1",
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"nsIFaviconService");
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XPCOMUtils.defineLazyGetter(this, "_defaultQuery", function() {
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let replacementText = "";
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return this._db.createAsyncStatement(
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SQL_BASE.replace("{ADDITIONAL_CONDITIONS}", replacementText, "g")
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);
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});
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XPCOMUtils.defineLazyGetter(this, "_historyQuery", function() {
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// Enforce ignoring the visit_count index, since the frecency one is much
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// faster in this case. ANALYZE helps the query planner to figure out the
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// faster path, but it may not have run yet.
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let replacementText = "AND +h.visit_count > 0";
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return this._db.createAsyncStatement(
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SQL_BASE.replace("{ADDITIONAL_CONDITIONS}", replacementText, "g")
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);
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});
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XPCOMUtils.defineLazyGetter(this, "_bookmarkQuery", function() {
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let replacementText = "AND bookmarked";
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return this._db.createAsyncStatement(
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SQL_BASE.replace("{ADDITIONAL_CONDITIONS}", replacementText, "g")
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);
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});
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XPCOMUtils.defineLazyGetter(this, "_tagsQuery", function() {
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let replacementText = "AND tags IS NOT NULL";
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return this._db.createAsyncStatement(
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SQL_BASE.replace("{ADDITIONAL_CONDITIONS}", replacementText, "g")
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);
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});
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XPCOMUtils.defineLazyGetter(this, "_openPagesQuery", function() {
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return this._db.createAsyncStatement(
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"SELECT t.url, t.url, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "
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+ ":query_type, t.open_count, NULL "
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+ "FROM moz_openpages_temp t "
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+ "LEFT JOIN moz_places h ON h.url = t.url "
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+ "WHERE h.id IS NULL "
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+ "AND AUTOCOMPLETE_MATCH(:searchString, t.url, t.url, NULL, "
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+ "NULL, NULL, NULL, t.open_count, "
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+ ":matchBehavior, :searchBehavior) "
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+ "ORDER BY t.ROWID DESC "
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+ "LIMIT :maxResults "
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);
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});
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XPCOMUtils.defineLazyGetter(this, "_typedQuery", function() {
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let replacementText = "AND h.typed = 1";
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return this._db.createAsyncStatement(
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SQL_BASE.replace("{ADDITIONAL_CONDITIONS}", replacementText, "g")
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);
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});
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XPCOMUtils.defineLazyGetter(this, "_adaptiveQuery", function() {
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return this._db.createAsyncStatement(
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"/* do not warn (bug 487789) */ "
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+ "SELECT h.url, h.title, f.url, " + kBookTagSQLFragment + ", "
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+ "h.visit_count, h.typed, h.id, :query_type, t.open_count "
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+ "FROM ( "
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+ "SELECT ROUND( "
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+ "MAX(use_count) * (1 + (input = :search_string)), 1 "
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+ ") AS rank, place_id "
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+ "FROM moz_inputhistory "
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+ "WHERE input BETWEEN :search_string AND :search_string || X'FFFF' "
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+ "GROUP BY place_id "
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+ ") AS i "
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+ "JOIN moz_places h ON h.id = i.place_id "
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+ "LEFT JOIN moz_favicons f ON f.id = h.favicon_id "
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+ "LEFT JOIN moz_openpages_temp t ON t.url = h.url "
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+ "WHERE AUTOCOMPLETE_MATCH(NULL, h.url, "
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+ "IFNULL(btitle, h.title), tags, "
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+ "h.visit_count, h.typed, bookmarked, "
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+ "t.open_count, "
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+ ":matchBehavior, :searchBehavior) "
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+ "ORDER BY rank DESC, h.frecency DESC "
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);
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});
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XPCOMUtils.defineLazyGetter(this, "_keywordQuery", function() {
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return this._db.createAsyncStatement(
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"/* do not warn (bug 487787) */ "
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+ "SELECT "
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+ "(SELECT REPLACE(url, '%s', :query_string) FROM moz_places WHERE id = b.fk) "
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+ "AS search_url, h.title, "
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+ "IFNULL(f.url, (SELECT f.url "
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+ "FROM moz_places "
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+ "JOIN moz_favicons f ON f.id = favicon_id "
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+ "WHERE rev_host = (SELECT rev_host FROM moz_places WHERE id = b.fk) "
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+ "ORDER BY frecency DESC "
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+ "LIMIT 1) "
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+ "), 1, b.title, NULL, h.visit_count, h.typed, IFNULL(h.id, b.fk), "
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+ ":query_type, t.open_count "
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+ "FROM moz_keywords k "
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+ "JOIN moz_bookmarks b ON b.keyword_id = k.id "
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+ "LEFT JOIN moz_places h ON h.url = search_url "
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+ "LEFT JOIN moz_favicons f ON f.id = h.favicon_id "
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+ "LEFT JOIN moz_openpages_temp t ON t.url = search_url "
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+ "WHERE LOWER(k.keyword) = LOWER(:keyword) "
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+ "ORDER BY h.frecency DESC "
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);
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});
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this._registerOpenPageQuerySQL = "INSERT OR REPLACE INTO moz_openpages_temp "
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+ "(url, open_count) "
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+ "VALUES (:page_url, "
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+ "IFNULL("
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+ "("
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+ "SELECT open_count + 1 "
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+ "FROM moz_openpages_temp "
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+ "WHERE url = :page_url "
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+ "), "
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+ "1"
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+ ")"
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+ ")";
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XPCOMUtils.defineLazyGetter(this, "_registerOpenPageQuery", function() {
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return this._db.createAsyncStatement(this._registerOpenPageQuerySQL);
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});
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XPCOMUtils.defineLazyGetter(this, "_unregisterOpenPageQuery", function() {
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return this._db.createAsyncStatement(
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"UPDATE moz_openpages_temp "
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+ "SET open_count = open_count - 1 "
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+ "WHERE url = :page_url"
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);
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});
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|
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//////////////////////////////////////////////////////////////////////////////
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//// Initialization
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|
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// load preferences
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this._prefs = Cc["@mozilla.org/preferences-service;1"].
|
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getService(Ci.nsIPrefService).
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getBranch(kBrowserUrlbarBranch);
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this._loadPrefs(true);
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|
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// register observers
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this._os = Cc["@mozilla.org/observer-service;1"].
|
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getService(Ci.nsIObserverService);
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this._os.addObserver(this, kTopicShutdown, false);
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}
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|
|
nsPlacesAutoComplete.prototype = {
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// nsIAutoCompleteSearch
|
|
|
|
startSearch: function PAC_startSearch(aSearchString, aSearchParam,
|
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aPreviousResult, aListener)
|
|
{
|
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// If a previous query is running and the controller has not taken care
|
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// of stopping it, kill it.
|
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if ("_pendingQuery" in this)
|
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this.stopSearch();
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|
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// Note: We don't use aPreviousResult to make sure ordering of results are
|
|
// consistent. See bug 412730 for more details.
|
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|
|
// We want to store the original string with no leading or trailing
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|
// whitespace for case sensitive searches.
|
|
this._originalSearchString = aSearchString.trim();
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|
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this._currentSearchString =
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this._fixupSearchText(this._originalSearchString.toLowerCase());
|
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|
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var searchParamParts = aSearchParam.split(" ");
|
|
this._enableActions = searchParamParts.indexOf("enable-actions") != -1;
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|
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this._listener = aListener;
|
|
let result = Cc["@mozilla.org/autocomplete/simple-result;1"].
|
|
createInstance(Ci.nsIAutoCompleteSimpleResult);
|
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result.setSearchString(aSearchString);
|
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result.setListener(this);
|
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this._result = result;
|
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|
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// If we are not enabled, we need to return now.
|
|
if (!this._enabled) {
|
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this._finishSearch(true);
|
|
return;
|
|
}
|
|
|
|
// Reset our search behavior to the default.
|
|
if (this._currentSearchString)
|
|
this._behavior = this._defaultBehavior;
|
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else
|
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this._behavior = this._emptySearchDefaultBehavior;
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|
|
// For any given search, we run up to four queries:
|
|
// 1) keywords (this._keywordQuery)
|
|
// 2) adaptive learning (this._adaptiveQuery)
|
|
// 3) open pages not supported by history (this._openPagesQuery)
|
|
// 4) query from this._getSearch
|
|
// (1) only gets ran if we get any filtered tokens from this._getSearch,
|
|
// since if there are no tokens, there is nothing to match, so there is no
|
|
// reason to run the query).
|
|
let {query, tokens} =
|
|
this._getSearch(this._getUnfilteredSearchTokens(this._currentSearchString));
|
|
let queries = tokens.length ?
|
|
[this._getBoundKeywordQuery(tokens), this._getBoundAdaptiveQuery(), this._getBoundOpenPagesQuery(tokens), query] :
|
|
[this._getBoundAdaptiveQuery(), this._getBoundOpenPagesQuery(tokens), query];
|
|
|
|
// Start executing our queries.
|
|
this._telemetryStartTime = Date.now();
|
|
this._executeQueries(queries);
|
|
|
|
// Set up our persistent state for the duration of the search.
|
|
this._searchTokens = tokens;
|
|
this._usedPlaces = {};
|
|
},
|
|
|
|
stopSearch: function PAC_stopSearch()
|
|
{
|
|
// We need to cancel our searches so we do not get any [more] results.
|
|
// However, it's possible we haven't actually started any searches, so this
|
|
// method may throw because this._pendingQuery may be undefined.
|
|
if (this._pendingQuery)
|
|
this._stopActiveQuery();
|
|
|
|
this._finishSearch(false);
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// nsIAutoCompleteSimpleResultListener
|
|
|
|
onValueRemoved: function PAC_onValueRemoved(aResult, aURISpec, aRemoveFromDB)
|
|
{
|
|
if (aRemoveFromDB)
|
|
this._bh.removePage(this._ioService.newURI(aURISpec, null, null));
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// mozIPlacesAutoComplete
|
|
|
|
// If the connection has not yet been started, use this local cache. This
|
|
// prevents autocomplete from initing the database till the first search.
|
|
_openPagesCache: [],
|
|
registerOpenPage: function PAC_registerOpenPage(aURI)
|
|
{
|
|
if (!this._databaseInitialized) {
|
|
this._openPagesCache.push(aURI.spec);
|
|
return;
|
|
}
|
|
|
|
let stmt = this._registerOpenPageQuery;
|
|
stmt.params.page_url = aURI.spec;
|
|
stmt.executeAsync();
|
|
},
|
|
|
|
unregisterOpenPage: function PAC_unregisterOpenPage(aURI)
|
|
{
|
|
if (!this._databaseInitialized) {
|
|
let index = this._openPagesCache.indexOf(aURI.spec);
|
|
if (index != -1) {
|
|
this._openPagesCache.splice(index, 1);
|
|
}
|
|
return;
|
|
}
|
|
|
|
let stmt = this._unregisterOpenPageQuery;
|
|
stmt.params.page_url = aURI.spec;
|
|
stmt.executeAsync();
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// mozIStorageStatementCallback
|
|
|
|
handleResult: function PAC_handleResult(aResultSet)
|
|
{
|
|
let row, haveMatches = false;
|
|
while (row = aResultSet.getNextRow()) {
|
|
let match = this._processRow(row);
|
|
haveMatches = haveMatches || match;
|
|
|
|
if (this._result.matchCount == this._maxRichResults) {
|
|
// We have enough results, so stop running our search.
|
|
this._stopActiveQuery();
|
|
|
|
// And finish our search.
|
|
this._finishSearch(true);
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
// Notify about results if we've gotten them.
|
|
if (haveMatches)
|
|
this._notifyResults(true);
|
|
},
|
|
|
|
handleError: function PAC_handleError(aError)
|
|
{
|
|
Components.utils.reportError("Places AutoComplete: An async statement encountered an " +
|
|
"error: " + aError.result + ", '" + aError.message + "'");
|
|
},
|
|
|
|
handleCompletion: function PAC_handleCompletion(aReason)
|
|
{
|
|
// If we have already finished our search, we should bail out early.
|
|
if (this.isSearchComplete())
|
|
return;
|
|
|
|
// If we do not have enough results, and our match type is
|
|
// MATCH_BOUNDARY_ANYWHERE, search again with MATCH_ANYWHERE to get more
|
|
// results.
|
|
if (this._matchBehavior == MATCH_BOUNDARY_ANYWHERE &&
|
|
this._result.matchCount < this._maxRichResults && !this._secondPass) {
|
|
this._secondPass = true;
|
|
let queries = [
|
|
this._getBoundAdaptiveQuery(MATCH_ANYWHERE),
|
|
this._getBoundSearchQuery(MATCH_ANYWHERE, this._searchTokens),
|
|
];
|
|
this._executeQueries(queries);
|
|
return;
|
|
}
|
|
|
|
this._finishSearch(true);
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// nsIObserver
|
|
|
|
observe: function PAC_observe(aSubject, aTopic, aData)
|
|
{
|
|
if (aTopic == kTopicShutdown) {
|
|
this._os.removeObserver(this, kTopicShutdown);
|
|
|
|
// Remove our preference observer.
|
|
this._prefs.QueryInterface(Ci.nsIPrefBranch2).removeObserver("", this);
|
|
delete this._prefs;
|
|
|
|
// Finalize the statements that we have used.
|
|
let stmts = [
|
|
"_defaultQuery",
|
|
"_historyQuery",
|
|
"_bookmarkQuery",
|
|
"_tagsQuery",
|
|
"_openPagesQuery",
|
|
"_typedQuery",
|
|
"_adaptiveQuery",
|
|
"_keywordQuery",
|
|
"_registerOpenPageQuery",
|
|
"_unregisterOpenPageQuery",
|
|
];
|
|
for (let i = 0; i < stmts.length; i++) {
|
|
// We do not want to create any query we haven't already created, so
|
|
// see if it is a getter first.
|
|
if (Object.getOwnPropertyDescriptor(this, stmts[i]).value !== undefined) {
|
|
this[stmts[i]].finalize();
|
|
}
|
|
}
|
|
|
|
if (this._databaseInitialized) {
|
|
this._db.asyncClose();
|
|
}
|
|
}
|
|
else if (aTopic == kPrefChanged) {
|
|
this._loadPrefs();
|
|
}
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// nsPlacesAutoComplete
|
|
|
|
get _databaseInitialized()
|
|
Object.getOwnPropertyDescriptor(this, "_db").value !== undefined,
|
|
|
|
/**
|
|
* Used to unescape encoded URI strings, and drop information that we do not
|
|
* care about for searching.
|
|
*
|
|
* @param aURIString
|
|
* The text to unescape and modify.
|
|
* @return the modified uri.
|
|
*/
|
|
_fixupSearchText: function PAC_fixupSearchText(aURIString)
|
|
{
|
|
let uri = aURIString;
|
|
|
|
if (uri.indexOf("http://") == 0)
|
|
uri = uri.slice(7);
|
|
else if (uri.indexOf("https://") == 0)
|
|
uri = uri.slice(8);
|
|
else if (uri.indexOf("ftp://") == 0)
|
|
uri = uri.slice(6);
|
|
|
|
if (uri.indexOf("www.") == 0)
|
|
uri = uri.slice(4);
|
|
|
|
return this._textURIService.unEscapeURIForUI("UTF-8", uri);
|
|
},
|
|
|
|
/**
|
|
* Generates the tokens used in searching from a given string.
|
|
*
|
|
* @param aSearchString
|
|
* The string to generate tokens from.
|
|
* @return an array of tokens.
|
|
*/
|
|
_getUnfilteredSearchTokens: function PAC_unfilteredSearchTokens(aSearchString)
|
|
{
|
|
// Calling split on an empty string will return an array containing one
|
|
// empty string. We don't want that, as it'll break our logic, so return an
|
|
// empty array then.
|
|
return aSearchString.length ? aSearchString.split(" ") : [];
|
|
},
|
|
|
|
/**
|
|
* Properly cleans up when searching is completed.
|
|
*
|
|
* @param aNotify
|
|
* Indicates if we should notify the AutoComplete listener about our
|
|
* results or not.
|
|
*/
|
|
_finishSearch: function PAC_finishSearch(aNotify)
|
|
{
|
|
// Notify about results if we are supposed to.
|
|
if (aNotify)
|
|
this._notifyResults(false);
|
|
|
|
// Clear our state
|
|
delete this._originalSearchString;
|
|
delete this._currentSearchString;
|
|
delete this._searchTokens;
|
|
delete this._listener;
|
|
delete this._result;
|
|
delete this._usedPlaces;
|
|
delete this._pendingQuery;
|
|
this._secondPass = false;
|
|
this._enableActions = false;
|
|
},
|
|
|
|
/**
|
|
* Executes the given queries asynchronously.
|
|
*
|
|
* @param aQueries
|
|
* The queries to execute.
|
|
*/
|
|
_executeQueries: function PAC_executeQueries(aQueries)
|
|
{
|
|
// Because we might get a handleCompletion for canceled queries, we want to
|
|
// filter out queries we no longer care about (described in the
|
|
// handleCompletion implementation of AutoCompleteStatementCallbackWrapper).
|
|
|
|
// Create our wrapper object and execute the queries.
|
|
let wrapper = new AutoCompleteStatementCallbackWrapper(this, this._db);
|
|
this._pendingQuery = wrapper.executeAsync(aQueries);
|
|
},
|
|
|
|
/**
|
|
* Stops executing our active query.
|
|
*/
|
|
_stopActiveQuery: function PAC_stopActiveQuery()
|
|
{
|
|
this._pendingQuery.cancel();
|
|
delete this._pendingQuery;
|
|
},
|
|
|
|
/**
|
|
* Notifies the listener about results.
|
|
*
|
|
* @param aSearchOngoing
|
|
* Indicates if the search is ongoing or not.
|
|
*/
|
|
_notifyResults: function PAC_notifyResults(aSearchOngoing)
|
|
{
|
|
let result = this._result;
|
|
let resultCode = result.matchCount ? "RESULT_SUCCESS" : "RESULT_NOMATCH";
|
|
if (aSearchOngoing)
|
|
resultCode += "_ONGOING";
|
|
result.setSearchResult(Ci.nsIAutoCompleteResult[resultCode]);
|
|
result.setDefaultIndex(result.matchCount ? 0 : -1);
|
|
this._listener.onSearchResult(this, result);
|
|
if (this._telemetryStartTime) {
|
|
let elapsed = Date.now() - this._telemetryStartTime;
|
|
if (elapsed > 50) {
|
|
try {
|
|
Services.telemetry
|
|
.getHistogramById("PLACES_AUTOCOMPLETE_1ST_RESULT_TIME_MS")
|
|
.add(elapsed);
|
|
} catch (ex) {
|
|
Components.utils.reportError("Unable to report telemetry.");
|
|
}
|
|
}
|
|
this._telemetryStartTime = null;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Loads the preferences that we care about.
|
|
*
|
|
* @param [optional] aRegisterObserver
|
|
* Indicates if the preference observer should be added or not. The
|
|
* default value is false.
|
|
*/
|
|
_loadPrefs: function PAC_loadPrefs(aRegisterObserver)
|
|
{
|
|
let self = this;
|
|
function safeGetter(aName, aDefault) {
|
|
let types = {
|
|
boolean: "Bool",
|
|
number: "Int",
|
|
string: "Char"
|
|
};
|
|
let type = types[typeof(aDefault)];
|
|
if (!type)
|
|
throw "Unknown type!";
|
|
|
|
// If the pref isn't set, we want to use the default.
|
|
try {
|
|
return self._prefs["get" + type + "Pref"](aName);
|
|
}
|
|
catch (e) {
|
|
return aDefault;
|
|
}
|
|
}
|
|
|
|
this._enabled = safeGetter("autocomplete.enabled", true);
|
|
this._matchBehavior = safeGetter("matchBehavior", MATCH_BOUNDARY_ANYWHERE);
|
|
this._filterJavaScript = safeGetter("filter.javascript", true);
|
|
this._maxRichResults = safeGetter("maxRichResults", 25);
|
|
this._restrictHistoryToken = safeGetter("restrict.history", "^");
|
|
this._restrictBookmarkToken = safeGetter("restrict.bookmark", "*");
|
|
this._restrictTypedToken = safeGetter("restrict.typed", "~");
|
|
this._restrictTagToken = safeGetter("restrict.tag", "+");
|
|
this._restrictOpenPageToken = safeGetter("restrict.openpage", "%");
|
|
this._matchTitleToken = safeGetter("match.title", "#");
|
|
this._matchURLToken = safeGetter("match.url", "@");
|
|
this._defaultBehavior = safeGetter("default.behavior", 0);
|
|
// Further restrictions to apply for "empty searches" (i.e. searches for "").
|
|
this._emptySearchDefaultBehavior =
|
|
this._defaultBehavior |
|
|
safeGetter("default.behavior.emptyRestriction",
|
|
Ci.mozIPlacesAutoComplete.BEHAVIOR_HISTORY |
|
|
Ci.mozIPlacesAutoComplete.BEHAVIOR_TYPED);
|
|
|
|
// Validate matchBehavior; default to MATCH_BOUNDARY_ANYWHERE.
|
|
if (this._matchBehavior != MATCH_ANYWHERE &&
|
|
this._matchBehavior != MATCH_BOUNDARY &&
|
|
this._matchBehavior != MATCH_BEGINNING)
|
|
this._matchBehavior = MATCH_BOUNDARY_ANYWHERE;
|
|
|
|
// register observer
|
|
if (aRegisterObserver) {
|
|
let pb = this._prefs.QueryInterface(Ci.nsIPrefBranch2);
|
|
pb.addObserver("", this, false);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Given an array of tokens, this function determines which query should be
|
|
* ran. It also removes any special search tokens.
|
|
*
|
|
* @param aTokens
|
|
* An array of search tokens.
|
|
* @return an object with two properties:
|
|
* query: the correctly optimized, bound query to search the database
|
|
* with.
|
|
* tokens: the filtered list of tokens to search with.
|
|
*/
|
|
_getSearch: function PAC_getSearch(aTokens)
|
|
{
|
|
// Set the proper behavior so our call to _getBoundSearchQuery gives us the
|
|
// correct query.
|
|
for (let i = aTokens.length - 1; i >= 0; i--) {
|
|
switch (aTokens[i]) {
|
|
case this._restrictHistoryToken:
|
|
this._setBehavior("history");
|
|
break;
|
|
case this._restrictBookmarkToken:
|
|
this._setBehavior("bookmark");
|
|
break;
|
|
case this._restrictTagToken:
|
|
this._setBehavior("tag");
|
|
break;
|
|
case this._restrictOpenPageToken:
|
|
if (!this._enableActions)
|
|
continue;
|
|
this._setBehavior("openpage");
|
|
break;
|
|
case this._matchTitleToken:
|
|
this._setBehavior("title");
|
|
break;
|
|
case this._matchURLToken:
|
|
this._setBehavior("url");
|
|
break;
|
|
case this._restrictTypedToken:
|
|
this._setBehavior("typed");
|
|
break;
|
|
default:
|
|
// We do not want to remove the token if we did not match.
|
|
continue;
|
|
};
|
|
|
|
aTokens.splice(i, 1);
|
|
}
|
|
|
|
// Set the right JavaScript behavior based on our preference. Note that the
|
|
// preference is whether or not we should filter JavaScript, and the
|
|
// behavior is if we should search it or not.
|
|
if (!this._filterJavaScript)
|
|
this._setBehavior("javascript");
|
|
|
|
return {
|
|
query: this._getBoundSearchQuery(this._matchBehavior, aTokens),
|
|
tokens: aTokens
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Obtains the search query to be used based on the previously set search
|
|
* behaviors (accessed by this._hasBehavior). The query is bound and ready to
|
|
* execute.
|
|
*
|
|
* @param aMatchBehavior
|
|
* How this query should match its tokens to the search string.
|
|
* @param aTokens
|
|
* An array of search tokens.
|
|
* @return the correctly optimized query to search the database with and the
|
|
* new list of tokens to search with. The query has all the needed
|
|
* parameters bound, so consumers can execute it without doing any
|
|
* additional work.
|
|
*/
|
|
_getBoundSearchQuery: function PAC_getBoundSearchQuery(aMatchBehavior,
|
|
aTokens)
|
|
{
|
|
// We use more optimized queries for restricted searches, so we will always
|
|
// return the most restrictive one to the least restrictive one if more than
|
|
// one token is found.
|
|
// Note: "openpages" behavior is supported by the default query.
|
|
// _openPagesQuery instead returns only pages not supported by
|
|
// history and it is always executed.
|
|
let query = this._hasBehavior("tag") ? this._tagsQuery :
|
|
this._hasBehavior("bookmark") ? this._bookmarkQuery :
|
|
this._hasBehavior("typed") ? this._typedQuery :
|
|
this._hasBehavior("history") ? this._historyQuery :
|
|
this._defaultQuery;
|
|
|
|
// Bind the needed parameters to the query so consumers can use it.
|
|
let (params = query.params) {
|
|
params.parent = this._bs.tagsFolder;
|
|
params.query_type = kQueryTypeFiltered;
|
|
params.matchBehavior = aMatchBehavior;
|
|
params.searchBehavior = this._behavior;
|
|
|
|
// We only want to search the tokens that we are left with - not the
|
|
// original search string.
|
|
params.searchString = aTokens.join(" ");
|
|
|
|
// Limit the query to the the maximum number of desired results.
|
|
// This way we can avoid doing more work than needed.
|
|
params.maxResults = this._maxRichResults;
|
|
}
|
|
|
|
return query;
|
|
},
|
|
|
|
_getBoundOpenPagesQuery: function PAC_getBoundOpenPagesQuery(aTokens)
|
|
{
|
|
let query = this._openPagesQuery;
|
|
|
|
// Bind the needed parameters to the query so consumers can use it.
|
|
let (params = query.params) {
|
|
params.query_type = kQueryTypeFiltered;
|
|
params.matchBehavior = this._matchBehavior;
|
|
params.searchBehavior = this._behavior;
|
|
// We only want to search the tokens that we are left with - not the
|
|
// original search string.
|
|
params.searchString = aTokens.join(" ");
|
|
params.maxResults = this._maxRichResults;
|
|
}
|
|
|
|
return query;
|
|
},
|
|
|
|
/**
|
|
* Obtains the keyword query with the properly bound parameters.
|
|
*
|
|
* @param aTokens
|
|
* The array of search tokens to check against.
|
|
* @return the bound keyword query.
|
|
*/
|
|
_getBoundKeywordQuery: function PAC_getBoundKeywordQuery(aTokens)
|
|
{
|
|
// The keyword is the first word in the search string, with the parameters
|
|
// following it.
|
|
let searchString = this._originalSearchString;
|
|
let queryString = "";
|
|
let queryIndex = searchString.indexOf(" ");
|
|
if (queryIndex != -1)
|
|
queryString = searchString.substring(queryIndex + 1);
|
|
|
|
// We need to escape the parameters as if they were the query in a URL
|
|
queryString = encodeURIComponent(queryString).replace("%20", "+", "g");
|
|
|
|
// The first word could be a keyword, so that's what we'll search.
|
|
let keyword = aTokens[0];
|
|
|
|
let query = this._keywordQuery;
|
|
let (params = query.params) {
|
|
params.keyword = keyword;
|
|
params.query_string = queryString;
|
|
params.query_type = kQueryTypeKeyword;
|
|
}
|
|
|
|
return query;
|
|
},
|
|
|
|
/**
|
|
* Obtains the adaptive query with the properly bound parameters.
|
|
*
|
|
* @return the bound adaptive query.
|
|
*/
|
|
_getBoundAdaptiveQuery: function PAC_getBoundAdaptiveQuery(aMatchBehavior)
|
|
{
|
|
// If we were not given a match behavior, use the stored match behavior.
|
|
if (arguments.length == 0)
|
|
aMatchBehavior = this._matchBehavior;
|
|
|
|
let query = this._adaptiveQuery;
|
|
let (params = query.params) {
|
|
params.parent = this._bs.tagsFolder;
|
|
params.search_string = this._currentSearchString;
|
|
params.query_type = kQueryTypeFiltered;
|
|
params.matchBehavior = aMatchBehavior;
|
|
params.searchBehavior = this._behavior;
|
|
}
|
|
|
|
return query;
|
|
},
|
|
|
|
/**
|
|
* Processes a mozIStorageRow to generate the proper data for the AutoComplete
|
|
* result. This will add an entry to the current result if it matches the
|
|
* criteria.
|
|
*
|
|
* @param aRow
|
|
* The row to process.
|
|
* @return true if the row is accepted, and false if not.
|
|
*/
|
|
_processRow: function PAC_processRow(aRow)
|
|
{
|
|
// Before we do any work, make sure this entry isn't already in our results.
|
|
let entryId = aRow.getResultByIndex(kQueryIndexPlaceId);
|
|
let escapedEntryURL = aRow.getResultByIndex(kQueryIndexURL);
|
|
let openPageCount = aRow.getResultByIndex(kQueryIndexOpenPageCount) || 0;
|
|
|
|
// If actions are enabled and the page is open, add only the switch-to-tab
|
|
// result. Otherwise, add the normal result.
|
|
let [url, action] = this._enableActions && openPageCount > 0 ?
|
|
["moz-action:switchtab," + escapedEntryURL, "action "] :
|
|
[escapedEntryURL, ""];
|
|
|
|
if (this._inResults(entryId, url)) {
|
|
return false;
|
|
}
|
|
|
|
let entryTitle = aRow.getResultByIndex(kQueryIndexTitle) || "";
|
|
let entryFavicon = aRow.getResultByIndex(kQueryIndexFaviconURL) || "";
|
|
let entryBookmarked = aRow.getResultByIndex(kQueryIndexBookmarked);
|
|
let entryBookmarkTitle = entryBookmarked ?
|
|
aRow.getResultByIndex(kQueryIndexBookmarkTitle) : null;
|
|
let entryTags = aRow.getResultByIndex(kQueryIndexTags) || "";
|
|
|
|
// Always prefer the bookmark title unless it is empty
|
|
let title = entryBookmarkTitle || entryTitle;
|
|
|
|
let style;
|
|
if (aRow.getResultByIndex(kQueryIndexQueryType) == kQueryTypeKeyword) {
|
|
// If we do not have a title, then we must have a keyword, so let the UI
|
|
// know it is a keyword. Otherwise, we found an exact page match, so just
|
|
// show the page like a regular result. Because the page title is likely
|
|
// going to be more specific than the bookmark title (keyword title).
|
|
if (!entryTitle)
|
|
style = "keyword";
|
|
else
|
|
title = entryTitle;
|
|
}
|
|
|
|
// We will always prefer to show tags if we have them.
|
|
let showTags = !!entryTags;
|
|
|
|
// However, we'll act as if a page is not bookmarked or tagged if the user
|
|
// only wants only history and not bookmarks or tags.
|
|
if (this._hasBehavior("history") &&
|
|
!(this._hasBehavior("bookmark") || this._hasBehavior("tag"))) {
|
|
showTags = false;
|
|
style = "favicon";
|
|
}
|
|
|
|
// If we have tags and should show them, we need to add them to the title.
|
|
if (showTags)
|
|
title += kTitleTagsSeparator + entryTags;
|
|
|
|
// We have to determine the right style to display. Tags show the tag icon,
|
|
// bookmarks get the bookmark icon, and keywords get the keyword icon. If
|
|
// the result does not fall into any of those, it just gets the favicon.
|
|
if (!style) {
|
|
// It is possible that we already have a style set (from a keyword
|
|
// search or because of the user's preferences), so only set it if we
|
|
// haven't already done so.
|
|
if (showTags)
|
|
style = "tag";
|
|
else if (entryBookmarked)
|
|
style = "bookmark";
|
|
else
|
|
style = "favicon";
|
|
}
|
|
|
|
this._addToResults(entryId, url, title, entryFavicon, action + style);
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Checks to see if the given place has already been added to the results.
|
|
*
|
|
* @param aPlaceId
|
|
* The place id to check for, may be null.
|
|
* @param aUrl
|
|
* The url to check for.
|
|
* @return true if the place has been added, false otherwise.
|
|
*
|
|
* @note Must check both the id and the url for a negative match, since
|
|
* autocomplete may run in the middle of a new page addition. In such
|
|
* a case the switch-to-tab query would hash the page by url, then a
|
|
* next query, running after the page addition, would hash it by id.
|
|
* It's not possible to just rely on url though, since keywords
|
|
* dynamically modify the url to include their search string.
|
|
*/
|
|
_inResults: function PAC_inResults(aPlaceId, aUrl)
|
|
{
|
|
if (aPlaceId && aPlaceId in this._usedPlaces) {
|
|
return true;
|
|
}
|
|
return aUrl in this._usedPlaces;
|
|
},
|
|
|
|
/**
|
|
* Adds a result to the AutoComplete results. Also tracks that we've added
|
|
* this place_id into the result set.
|
|
*
|
|
* @param aPlaceId
|
|
* The place_id of the item to be added to the result set. This is
|
|
* used by _inResults.
|
|
* @param aURISpec
|
|
* The URI spec for the entry.
|
|
* @param aTitle
|
|
* The title to give the entry.
|
|
* @param aFaviconSpec
|
|
* The favicon to give to the entry.
|
|
* @param aStyle
|
|
* Indicates how the entry should be styled when displayed.
|
|
*/
|
|
_addToResults: function PAC_addToResults(aPlaceId, aURISpec, aTitle,
|
|
aFaviconSpec, aStyle)
|
|
{
|
|
// Add this to our internal tracker to ensure duplicates do not end up in
|
|
// the result. _usedPlaces is an Object that is being used as a set.
|
|
// Not all entries have a place id, thus we fallback to the url for them.
|
|
// We cannot use only the url since keywords entries are modified to
|
|
// include the search string, and would be returned multiple times. Ids
|
|
// are faster too.
|
|
this._usedPlaces[aPlaceId || aURISpec] = true;
|
|
|
|
// Obtain the favicon for this URI.
|
|
let favicon;
|
|
if (aFaviconSpec) {
|
|
let uri = this._ioService.newURI(aFaviconSpec, null, null);
|
|
favicon = this._faviconService.getFaviconLinkForIcon(uri).spec;
|
|
}
|
|
favicon = favicon || this._faviconService.defaultFavicon.spec;
|
|
|
|
this._result.appendMatch(aURISpec, aTitle, favicon, aStyle);
|
|
},
|
|
|
|
/**
|
|
* Determines if the specified AutoComplete behavior is set.
|
|
*
|
|
* @param aType
|
|
* The behavior type to test for.
|
|
* @return true if the behavior is set, false otherwise.
|
|
*/
|
|
_hasBehavior: function PAC_hasBehavior(aType)
|
|
{
|
|
return (this._behavior &
|
|
Ci.mozIPlacesAutoComplete["BEHAVIOR_" + aType.toUpperCase()]);
|
|
},
|
|
|
|
/**
|
|
* Enables the desired AutoComplete behavior.
|
|
*
|
|
* @param aType
|
|
* The behavior type to set.
|
|
*/
|
|
_setBehavior: function PAC_setBehavior(aType)
|
|
{
|
|
this._behavior |=
|
|
Ci.mozIPlacesAutoComplete["BEHAVIOR_" + aType.toUpperCase()];
|
|
},
|
|
|
|
/**
|
|
* Determines if we are done searching or not.
|
|
*
|
|
* @return true if we have completed searching, false otherwise.
|
|
*/
|
|
isSearchComplete: function PAC_isSearchComplete()
|
|
{
|
|
// If _pendingQuery is null, we should no longer do any work since we have
|
|
// already called _finishSearch. This means we completed our search.
|
|
return this._pendingQuery == null;
|
|
},
|
|
|
|
/**
|
|
* Determines if the given handle of a pending statement is a pending search
|
|
* or not.
|
|
*
|
|
* @param aHandle
|
|
* A mozIStoragePendingStatement to check and see if we are waiting for
|
|
* results from it still.
|
|
* @return true if it is a pending query, false otherwise.
|
|
*/
|
|
isPendingSearch: function PAC_isPendingSearch(aHandle)
|
|
{
|
|
return this._pendingQuery == aHandle;
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// nsISupports
|
|
|
|
classID: Components.ID("d0272978-beab-4adc-a3d4-04b76acfa4e7"),
|
|
|
|
QueryInterface: XPCOMUtils.generateQI([
|
|
Ci.nsIAutoCompleteSearch,
|
|
Ci.nsIAutoCompleteSimpleResultListener,
|
|
Ci.mozIPlacesAutoComplete,
|
|
Ci.mozIStorageStatementCallback,
|
|
Ci.nsIObserver,
|
|
])
|
|
};
|
|
|
|
let components = [nsPlacesAutoComplete];
|
|
const NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
|