mirror of
https://github.com/classilla/tenfourfox.git
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648 lines
25 KiB
JavaScript
648 lines
25 KiB
JavaScript
/* vim: set ts=4 sts=4 sw=4 et tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const { classes: Cc, interfaces: Ci, results: Cr, utils: Cu } = Components;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "BrowserUtils",
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"resource://gre/modules/BrowserUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Deprecated",
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"resource://gre/modules/Deprecated.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "FormHistory",
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"resource://gre/modules/FormHistory.jsm");
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function isAutocompleteDisabled(aField) {
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if (aField.autocomplete !== "") {
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return aField.autocomplete === "off";
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}
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return aField.form && aField.form.autocomplete === "off";
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}
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function FormAutoComplete() {
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this.init();
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}
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/**
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* FormAutoComplete
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*
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* Implements the nsIFormAutoComplete interface in the main process.
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*/
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FormAutoComplete.prototype = {
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classID : Components.ID("{c11c21b2-71c9-4f87-a0f8-5e13f50495fd}"),
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QueryInterface : XPCOMUtils.generateQI([Ci.nsIFormAutoComplete, Ci.nsISupportsWeakReference]),
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_prefBranch : null,
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_debug : true, // mirrors browser.formfill.debug
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_enabled : true, // mirrors browser.formfill.enable preference
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_agedWeight : 2,
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_bucketSize : 1,
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_maxTimeGroupings : 25,
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_timeGroupingSize : 7 * 24 * 60 * 60 * 1000 * 1000,
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_expireDays : null,
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_boundaryWeight : 25,
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_prefixWeight : 5,
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// Only one query is performed at a time, which will be stored in _pendingQuery
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// while the query is being performed. It will be cleared when the query finishes,
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// is cancelled, or an error occurs. If a new query occurs while one is already
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// pending, the existing one is cancelled. The pending query will be an
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// mozIStoragePendingStatement object.
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_pendingQuery : null,
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init : function() {
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// Preferences. Add observer so we get notified of changes.
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this._prefBranch = Services.prefs.getBranch("browser.formfill.");
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this._prefBranch.addObserver("", this.observer, true);
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this.observer._self = this;
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this._debug = this._prefBranch.getBoolPref("debug");
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this._enabled = this._prefBranch.getBoolPref("enable");
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this._agedWeight = this._prefBranch.getIntPref("agedWeight");
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this._bucketSize = this._prefBranch.getIntPref("bucketSize");
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this._maxTimeGroupings = this._prefBranch.getIntPref("maxTimeGroupings");
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this._timeGroupingSize = this._prefBranch.getIntPref("timeGroupingSize") * 1000 * 1000;
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this._expireDays = this._prefBranch.getIntPref("expire_days");
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},
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observer : {
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_self : null,
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QueryInterface : XPCOMUtils.generateQI([Ci.nsIObserver,
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Ci.nsISupportsWeakReference]),
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observe : function (subject, topic, data) {
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let self = this._self;
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if (topic == "nsPref:changed") {
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let prefName = data;
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self.log("got change to " + prefName + " preference");
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switch (prefName) {
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case "agedWeight":
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self._agedWeight = self._prefBranch.getIntPref(prefName);
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break;
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case "debug":
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self._debug = self._prefBranch.getBoolPref(prefName);
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break;
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case "enable":
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self._enabled = self._prefBranch.getBoolPref(prefName);
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break;
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case "maxTimeGroupings":
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self._maxTimeGroupings = self._prefBranch.getIntPref(prefName);
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break;
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case "timeGroupingSize":
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self._timeGroupingSize = self._prefBranch.getIntPref(prefName) * 1000 * 1000;
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break;
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case "bucketSize":
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self._bucketSize = self._prefBranch.getIntPref(prefName);
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break;
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case "boundaryWeight":
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self._boundaryWeight = self._prefBranch.getIntPref(prefName);
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break;
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case "prefixWeight":
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self._prefixWeight = self._prefBranch.getIntPref(prefName);
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break;
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default:
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self.log("Oops! Pref not handled, change ignored.");
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}
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}
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}
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},
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// AutoCompleteE10S needs to be able to call autoCompleteSearchAsync without
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// going through IDL in order to pass a mock DOM object field.
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get wrappedJSObject() {
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return this;
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},
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/*
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* log
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*
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* Internal function for logging debug messages to the Error Console
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* window
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*/
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log : function (message) {
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if (!this._debug)
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return;
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dump("FormAutoComplete: " + message + "\n");
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Services.console.logStringMessage("FormAutoComplete: " + message);
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},
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/*
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* autoCompleteSearchAsync
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*
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* aInputName -- |name| attribute from the form input being autocompleted.
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* aUntrimmedSearchString -- current value of the input
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* aField -- nsIDOMHTMLInputElement being autocompleted (may be null if from chrome)
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* aPreviousResult -- previous search result, if any.
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* aDatalistResult -- results from list=datalist for aField.
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* aListener -- nsIFormAutoCompleteObserver that listens for the nsIAutoCompleteResult
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* that may be returned asynchronously.
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*/
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autoCompleteSearchAsync : function (aInputName,
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aUntrimmedSearchString,
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aField,
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aPreviousResult,
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aDatalistResult,
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aListener) {
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function sortBytotalScore (a, b) {
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return b.totalScore - a.totalScore;
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}
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// Guard against void DOM strings filtering into this code.
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if (typeof aInputName === "object") {
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aInputName = "";
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}
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if (typeof aUntrimmedSearchString === "object") {
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aUntrimmedSearchString = "";
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}
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// If we have datalist results, they become our "empty" result.
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let emptyResult = aDatalistResult ||
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new FormAutoCompleteResult(FormHistory, [],
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aInputName,
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aUntrimmedSearchString,
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null);
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if (!this._enabled) {
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if (aListener) {
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aListener.onSearchCompletion(emptyResult);
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}
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return;
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}
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// don't allow form inputs (aField != null) to get results from search bar history
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if (aInputName == 'searchbar-history' && aField) {
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this.log('autoCompleteSearch for input name "' + aInputName + '" is denied');
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if (aListener) {
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aListener.onSearchCompletion(emptyResult);
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}
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return;
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}
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if (aField && isAutocompleteDisabled(aField)) {
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this.log('autoCompleteSearch not allowed due to autcomplete=off');
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if (aListener) {
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aListener.onSearchCompletion(emptyResult);
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}
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return;
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}
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this.log("AutoCompleteSearch invoked. Search is: " + aUntrimmedSearchString);
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let searchString = aUntrimmedSearchString.trim().toLowerCase();
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// reuse previous results if:
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// a) length greater than one character (others searches are special cases) AND
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// b) the the new results will be a subset of the previous results
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if (aPreviousResult && aPreviousResult.searchString.trim().length > 1 &&
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searchString.indexOf(aPreviousResult.searchString.trim().toLowerCase()) >= 0) {
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this.log("Using previous autocomplete result");
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let result = aPreviousResult;
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let wrappedResult = result.wrappedJSObject;
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wrappedResult.searchString = aUntrimmedSearchString;
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// Leaky abstraction alert: it would be great to be able to split
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// this code between nsInputListAutoComplete and here but because of
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// the way we abuse the formfill autocomplete API in e10s, we have
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// to deal with the <datalist> results here as well (and down below
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// in mergeResults).
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// If there were datalist results result is a FormAutoCompleteResult
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// as defined in nsFormAutoCompleteResult.jsm with the entire list
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// of results in wrappedResult._values and only the results from
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// form history in wrappedResults.entries.
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// First, grab the entire list of old results.
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let allResults = wrappedResult._labels;
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let datalistResults, datalistLabels;
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if (allResults) {
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// We have datalist results, extract them from the values array.
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datalistLabels = allResults.slice(wrappedResult.entries.length);
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let filtered = [];
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datalistResults = [];
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for (let i = 0; i < datalistLabels.length; ++i) {
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if (datalistLabels[i].toLowerCase().includes(searchString)) {
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filtered.push(datalistLabels[i]);
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datalistResults.push(wrappedResult._values[i]);
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}
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}
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datalistLabels = filtered;
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}
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let searchTokens = searchString.split(/\s+/);
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// We have a list of results for a shorter search string, so just
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// filter them further based on the new search string and add to a new array.
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let entries = wrappedResult.entries;
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let filteredEntries = [];
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for (let i = 0; i < entries.length; i++) {
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let entry = entries[i];
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// Remove results that do not contain the token
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// XXX bug 394604 -- .toLowerCase can be wrong for some intl chars
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if(searchTokens.some(tok => entry.textLowerCase.indexOf(tok) < 0))
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continue;
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this._calculateScore(entry, searchString, searchTokens);
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this.log("Reusing autocomplete entry '" + entry.text +
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"' (" + entry.frecency +" / " + entry.totalScore + ")");
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filteredEntries.push(entry);
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}
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filteredEntries.sort(sortBytotalScore);
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wrappedResult.entries = filteredEntries;
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// If we had datalistResults, re-merge them back into the filtered
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// entries.
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if (datalistResults) {
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filteredEntries = filteredEntries.map(elt => elt.text);
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let comments = new Array(filteredEntries.length + datalistResults.length).fill("");
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comments[filteredEntries.length] = "separator";
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datalistLabels = new Array(filteredEntries.length).fill("").concat(datalistLabels);
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wrappedResult._values = filteredEntries.concat(datalistResults);
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wrappedResult._labels = datalistLabels;
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wrappedResult._comments = comments;
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}
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if (aListener) {
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aListener.onSearchCompletion(result);
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}
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} else {
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this.log("Creating new autocomplete search result.");
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// Start with an empty list.
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let result = aDatalistResult ?
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new FormAutoCompleteResult(FormHistory, [], aInputName, aUntrimmedSearchString, null) :
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emptyResult;
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let processEntry = (aEntries) => {
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if (aField && aField.maxLength > -1) {
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result.entries =
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aEntries.filter(function (el) { return el.text.length <= aField.maxLength; });
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} else {
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result.entries = aEntries;
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}
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if (aDatalistResult && aDatalistResult.matchCount > 0) {
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result = this.mergeResults(result, aDatalistResult);
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}
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if (aListener) {
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aListener.onSearchCompletion(result);
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}
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}
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this.getAutoCompleteValues(aInputName, searchString, processEntry);
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}
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},
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mergeResults(historyResult, datalistResult) {
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let values = datalistResult.wrappedJSObject._values;
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let labels = datalistResult.wrappedJSObject._labels;
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let comments = [];
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// formHistoryResult will be null if form autocomplete is disabled. We
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// still want the list values to display.
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let entries = historyResult.wrappedJSObject.entries;
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let historyResults = entries.map(function(entry) { return entry.text });
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let historyComments = new Array(entries.length).fill("");
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// fill out the comment column for the suggestions
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// if we have any suggestions, put a label at the top
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if (values.length) {
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comments[0] = "separator";
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comments.fill(1, "");
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}
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// now put the history results above the datalist suggestions
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let finalValues = historyResults.concat(values);
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let finalLabels = historyResults.concat(labels);
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let finalComments = historyComments.concat(comments);
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// This is ugly: there are two FormAutoCompleteResult classes in the
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// tree, one in a module and one in this file. Datalist results need to
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// use the one defined in the module but the rest of this file assumes
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// that we use the one defined here. To get around that, we explicitly
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// import the module here, out of the way of the other uses of
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// FormAutoCompleteResult.
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let {FormAutoCompleteResult} = Cu.import("resource://gre/modules/nsFormAutoCompleteResult.jsm", {});
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return new FormAutoCompleteResult(datalistResult.searchString,
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Ci.nsIAutoCompleteResult.RESULT_SUCCESS,
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0, "", finalValues, finalLabels,
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finalComments, historyResult);
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},
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stopAutoCompleteSearch : function () {
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if (this._pendingQuery) {
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this._pendingQuery.cancel();
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this._pendingQuery = null;
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}
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},
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/*
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* Get the values for an autocomplete list given a search string.
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*
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* fieldName - fieldname field within form history (the form input name)
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* searchString - string to search for
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* callback - called when the values are available. Passed an array of objects,
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* containing properties for each result. The callback is only called
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* when successful.
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*/
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getAutoCompleteValues : function (fieldName, searchString, callback) {
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let params = {
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agedWeight: this._agedWeight,
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bucketSize: this._bucketSize,
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expiryDate: 1000 * (Date.now() - this._expireDays * 24 * 60 * 60 * 1000),
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fieldname: fieldName,
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maxTimeGroupings: this._maxTimeGroupings,
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timeGroupingSize: this._timeGroupingSize,
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prefixWeight: this._prefixWeight,
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boundaryWeight: this._boundaryWeight
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}
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this.stopAutoCompleteSearch();
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let results = [];
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let processResults = {
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handleResult: aResult => {
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results.push(aResult);
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},
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handleError: aError => {
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this.log("getAutocompleteValues failed: " + aError.message);
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},
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handleCompletion: aReason => {
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// Check that the current query is still the one we created. Our
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// query might have been canceled shortly before completing, in
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// that case we don't want to call the callback anymore.
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if (query == this._pendingQuery) {
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this._pendingQuery = null;
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if (!aReason) {
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callback(results);
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}
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}
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}
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};
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let query = FormHistory.getAutoCompleteResults(searchString, params, processResults);
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this._pendingQuery = query;
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},
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/*
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* _calculateScore
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*
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* entry -- an nsIAutoCompleteResult entry
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* aSearchString -- current value of the input (lowercase)
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* searchTokens -- array of tokens of the search string
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*
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* Returns: an int
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*/
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_calculateScore : function (entry, aSearchString, searchTokens) {
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let boundaryCalc = 0;
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// for each word, calculate word boundary weights
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for (let token of searchTokens) {
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boundaryCalc += (entry.textLowerCase.indexOf(token) == 0);
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boundaryCalc += (entry.textLowerCase.indexOf(" " + token) >= 0);
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}
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boundaryCalc = boundaryCalc * this._boundaryWeight;
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// now add more weight if we have a traditional prefix match and
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// multiply boundary bonuses by boundary weight
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boundaryCalc += this._prefixWeight *
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(entry.textLowerCase.
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indexOf(aSearchString) == 0);
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entry.totalScore = Math.round(entry.frecency * Math.max(1, boundaryCalc));
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}
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}; // end of FormAutoComplete implementation
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/**
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* FormAutoCompleteChild
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*
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* Implements the nsIFormAutoComplete interface in a child content process,
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* and forwards the auto-complete requests to the parent process which
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* also implements a nsIFormAutoComplete interface and has
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* direct access to the FormHistory database.
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*/
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function FormAutoCompleteChild() {
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this.init();
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}
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FormAutoCompleteChild.prototype = {
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classID : Components.ID("{c11c21b2-71c9-4f87-a0f8-5e13f50495fd}"),
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QueryInterface : XPCOMUtils.generateQI([Ci.nsIFormAutoComplete, Ci.nsISupportsWeakReference]),
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_debug: false,
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_enabled: true,
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_pendingSearch: null,
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/*
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* init
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*
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* Initializes the content-process side of the FormAutoComplete component,
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* and add a listener for the message that the parent process sends when
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* a result is produced.
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*/
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init: function() {
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this._debug = Services.prefs.getBoolPref("browser.formfill.debug");
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this._enabled = Services.prefs.getBoolPref("browser.formfill.enable");
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this.log("init");
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},
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/*
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* log
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*
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* Internal function for logging debug messages
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*/
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log : function (message) {
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if (!this._debug)
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return;
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dump("FormAutoCompleteChild: " + message + "\n");
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},
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autoCompleteSearchAsync : function (aInputName, aUntrimmedSearchString,
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aField, aPreviousResult, aDatalistResult,
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aListener) {
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this.log("autoCompleteSearchAsync");
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if (this._pendingSearch) {
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this.stopAutoCompleteSearch();
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}
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let window = aField.ownerDocument.defaultView;
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let rect = BrowserUtils.getElementBoundingScreenRect(aField);
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let direction = window.getComputedStyle(aField).direction;
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let mockField = {};
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if (isAutocompleteDisabled(aField))
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mockField.autocomplete = "off";
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if (aField.maxLength > -1)
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mockField.maxLength = aField.maxLength;
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let datalistResult = aDatalistResult ?
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{ values: aDatalistResult.wrappedJSObject._values,
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labels: aDatalistResult.wrappedJSObject._labels} :
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null;
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let topLevelDocshell = window.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDocShell)
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.sameTypeRootTreeItem
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.QueryInterface(Ci.nsIDocShell);
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let mm = topLevelDocshell.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIContentFrameMessageManager);
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mm.sendAsyncMessage("FormHistory:AutoCompleteSearchAsync", {
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inputName: aInputName,
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untrimmedSearchString: aUntrimmedSearchString,
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mockField: mockField,
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datalistResult: datalistResult,
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left: rect.left,
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top: rect.top,
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width: rect.width,
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height: rect.height,
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direction: direction,
|
|
});
|
|
|
|
let search = this._pendingSearch = {};
|
|
let searchFinished = message => {
|
|
mm.removeMessageListener("FormAutoComplete:AutoCompleteSearchAsyncResult", searchFinished);
|
|
|
|
// Check whether stopAutoCompleteSearch() was called, i.e. the search
|
|
// was cancelled, while waiting for a result.
|
|
if (search != this._pendingSearch) {
|
|
return;
|
|
}
|
|
this._pendingSearch = null;
|
|
|
|
let result = new FormAutoCompleteResult(
|
|
null,
|
|
Array.from(message.data.results, res => ({ text: res })),
|
|
null,
|
|
null,
|
|
mm
|
|
);
|
|
if (aListener) {
|
|
aListener.onSearchCompletion(result);
|
|
}
|
|
}
|
|
|
|
mm.addMessageListener("FormAutoComplete:AutoCompleteSearchAsyncResult", searchFinished);
|
|
this.log("autoCompleteSearchAsync message was sent");
|
|
},
|
|
|
|
stopAutoCompleteSearch : function () {
|
|
this.log("stopAutoCompleteSearch");
|
|
this._pendingSearch = null;
|
|
},
|
|
}; // end of FormAutoCompleteChild implementation
|
|
|
|
// nsIAutoCompleteResult implementation
|
|
function FormAutoCompleteResult(formHistory,
|
|
entries,
|
|
fieldName,
|
|
searchString,
|
|
messageManager) {
|
|
this.formHistory = formHistory;
|
|
this.entries = entries;
|
|
this.fieldName = fieldName;
|
|
this.searchString = searchString;
|
|
this.messageManager = messageManager;
|
|
}
|
|
|
|
FormAutoCompleteResult.prototype = {
|
|
QueryInterface : XPCOMUtils.generateQI([Ci.nsIAutoCompleteResult,
|
|
Ci.nsISupportsWeakReference]),
|
|
|
|
// private
|
|
formHistory : null,
|
|
entries : null,
|
|
fieldName : null,
|
|
|
|
_checkIndexBounds : function (index) {
|
|
if (index < 0 || index >= this.entries.length)
|
|
throw Components.Exception("Index out of range.", Cr.NS_ERROR_ILLEGAL_VALUE);
|
|
},
|
|
|
|
// Allow autoCompleteSearch to get at the JS object so it can
|
|
// modify some readonly properties for internal use.
|
|
get wrappedJSObject() {
|
|
return this;
|
|
},
|
|
|
|
// Interfaces from idl...
|
|
searchString : null,
|
|
errorDescription : "",
|
|
get defaultIndex() {
|
|
if (this.entries.length == 0)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
},
|
|
get searchResult() {
|
|
if (this.entries.length == 0)
|
|
return Ci.nsIAutoCompleteResult.RESULT_NOMATCH;
|
|
return Ci.nsIAutoCompleteResult.RESULT_SUCCESS;
|
|
},
|
|
get matchCount() {
|
|
return this.entries.length;
|
|
},
|
|
|
|
getValueAt : function (index) {
|
|
this._checkIndexBounds(index);
|
|
return this.entries[index].text;
|
|
},
|
|
|
|
getLabelAt: function(index) {
|
|
return this.getValueAt(index);
|
|
},
|
|
|
|
getCommentAt : function (index) {
|
|
this._checkIndexBounds(index);
|
|
return "";
|
|
},
|
|
|
|
getStyleAt : function (index) {
|
|
this._checkIndexBounds(index);
|
|
return "";
|
|
},
|
|
|
|
getImageAt : function (index) {
|
|
this._checkIndexBounds(index);
|
|
return "";
|
|
},
|
|
|
|
getFinalCompleteValueAt : function (index) {
|
|
return this.getValueAt(index);
|
|
},
|
|
|
|
removeValueAt : function (index, removeFromDB) {
|
|
this._checkIndexBounds(index);
|
|
|
|
let [removedEntry] = this.entries.splice(index, 1);
|
|
|
|
if (removeFromDB) {
|
|
if (this.formHistory) {
|
|
this.formHistory.update({ op: "remove",
|
|
fieldname: this.fieldName,
|
|
value: removedEntry.text });
|
|
} else {
|
|
this.messageManager.sendAsyncMessage("FormAutoComplete:RemoveEntry",
|
|
{ index });
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
if (Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT &&
|
|
Services.prefs.getBoolPref("browser.tabs.remote.desktopbehavior", false)) {
|
|
// Register the stub FormAutoComplete module in the child which will
|
|
// forward messages to the parent through the process message manager.
|
|
let component = [FormAutoCompleteChild];
|
|
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(component);
|
|
} else {
|
|
let component = [FormAutoComplete];
|
|
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(component);
|
|
}
|