mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
431 lines
17 KiB
JavaScript
431 lines
17 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
|
|
const Cc = Components.classes;
|
|
const Ci = Components.interfaces;
|
|
const Cr = Components.results;
|
|
|
|
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
|
|
Components.utils.import("resource://gre/modules/Services.jsm");
|
|
|
|
function FormAutoComplete() {
|
|
this.init();
|
|
}
|
|
|
|
FormAutoComplete.prototype = {
|
|
classID : Components.ID("{c11c21b2-71c9-4f87-a0f8-5e13f50495fd}"),
|
|
QueryInterface : XPCOMUtils.generateQI([Ci.nsIFormAutoComplete, Ci.nsISupportsWeakReference]),
|
|
|
|
__formHistory : null,
|
|
get _formHistory() {
|
|
if (!this.__formHistory)
|
|
this.__formHistory = Cc["@mozilla.org/satchel/form-history;1"].
|
|
getService(Ci.nsIFormHistory2);
|
|
return this.__formHistory;
|
|
},
|
|
|
|
_prefBranch : null,
|
|
_debug : true, // mirrors browser.formfill.debug
|
|
_enabled : true, // mirrors browser.formfill.enable preference
|
|
_agedWeight : 2,
|
|
_bucketSize : 1,
|
|
_maxTimeGroupings : 25,
|
|
_timeGroupingSize : 7 * 24 * 60 * 60 * 1000 * 1000,
|
|
_expireDays : null,
|
|
_boundaryWeight : 25,
|
|
_prefixWeight : 5,
|
|
|
|
init : function() {
|
|
// Preferences. Add observer so we get notified of changes.
|
|
this._prefBranch = Services.prefs.getBranch("browser.formfill.");
|
|
this._prefBranch.addObserver("", this.observer, true);
|
|
this.observer._self = this;
|
|
|
|
this._debug = this._prefBranch.getBoolPref("debug");
|
|
this._enabled = this._prefBranch.getBoolPref("enable");
|
|
this._agedWeight = this._prefBranch.getIntPref("agedWeight");
|
|
this._bucketSize = this._prefBranch.getIntPref("bucketSize");
|
|
this._maxTimeGroupings = this._prefBranch.getIntPref("maxTimeGroupings");
|
|
this._timeGroupingSize = this._prefBranch.getIntPref("timeGroupingSize") * 1000 * 1000;
|
|
this._expireDays = this._prefBranch.getIntPref("expire_days");
|
|
|
|
this._dbStmts = {};
|
|
|
|
Services.obs.addObserver(this.observer, "profile-before-change", true);
|
|
},
|
|
|
|
observer : {
|
|
_self : null,
|
|
|
|
QueryInterface : XPCOMUtils.generateQI([Ci.nsIObserver,
|
|
Ci.nsISupportsWeakReference]),
|
|
|
|
observe : function (subject, topic, data) {
|
|
let self = this._self;
|
|
if (topic == "nsPref:changed") {
|
|
let prefName = data;
|
|
self.log("got change to " + prefName + " preference");
|
|
|
|
switch (prefName) {
|
|
case "agedWeight":
|
|
self._agedWeight = self._prefBranch.getIntPref(prefName);
|
|
break;
|
|
case "debug":
|
|
self._debug = self._prefBranch.getBoolPref(prefName);
|
|
break;
|
|
case "enable":
|
|
self._enabled = self._prefBranch.getBoolPref(prefName);
|
|
break;
|
|
case "maxTimeGroupings":
|
|
self._maxTimeGroupings = self._prefBranch.getIntPref(prefName);
|
|
break;
|
|
case "timeGroupingSize":
|
|
self._timeGroupingSize = self._prefBranch.getIntPref(prefName) * 1000 * 1000;
|
|
break;
|
|
case "bucketSize":
|
|
self._bucketSize = self._prefBranch.getIntPref(prefName);
|
|
break;
|
|
case "boundaryWeight":
|
|
self._boundaryWeight = self._prefBranch.getIntPref(prefName);
|
|
break;
|
|
case "prefixWeight":
|
|
self._prefixWeight = self._prefBranch.getIntPref(prefName);
|
|
break;
|
|
default:
|
|
self.log("Oops! Pref not handled, change ignored.");
|
|
}
|
|
} else if (topic == "profile-before-change") {
|
|
for each (let stmt in self._dbStmts) {
|
|
stmt.finalize();
|
|
}
|
|
self._dbStmts = {};
|
|
self.__formHistory = null;
|
|
}
|
|
}
|
|
},
|
|
|
|
|
|
/*
|
|
* log
|
|
*
|
|
* Internal function for logging debug messages to the Error Console
|
|
* window
|
|
*/
|
|
log : function (message) {
|
|
if (!this._debug)
|
|
return;
|
|
dump("FormAutoComplete: " + message + "\n");
|
|
Services.console.logStringMessage("FormAutoComplete: " + message);
|
|
},
|
|
|
|
|
|
/*
|
|
* autoCompleteSearch
|
|
*
|
|
* aInputName -- |name| attribute from the form input being autocompleted.
|
|
* aUntrimmedSearchString -- current value of the input
|
|
* aField -- nsIDOMHTMLInputElement being autocompleted (may be null if from chrome)
|
|
* aPreviousResult -- previous search result, if any.
|
|
*
|
|
* Returns: an nsIAutoCompleteResult
|
|
*/
|
|
autoCompleteSearch : function (aInputName, aUntrimmedSearchString, aField, aPreviousResult) {
|
|
function sortBytotalScore (a, b) {
|
|
return b.totalScore - a.totalScore;
|
|
}
|
|
|
|
if (!this._enabled)
|
|
return null;
|
|
|
|
// don't allow form inputs (aField != null) to get results from search bar history
|
|
if (aInputName == 'searchbar-history' && aField) {
|
|
this.log('autoCompleteSearch for input name "' + aInputName + '" is denied');
|
|
return null;
|
|
}
|
|
|
|
this.log("AutoCompleteSearch invoked. Search is: " + aUntrimmedSearchString);
|
|
let searchString = aUntrimmedSearchString.trim().toLowerCase();
|
|
let result = null;
|
|
|
|
// reuse previous results if:
|
|
// a) length greater than one character (others searches are special cases) AND
|
|
// b) the the new results will be a subset of the previous results
|
|
if (aPreviousResult && aPreviousResult.searchString.trim().length > 1 &&
|
|
searchString.indexOf(aPreviousResult.searchString.trim().toLowerCase()) >= 0) {
|
|
this.log("Using previous autocomplete result");
|
|
result = aPreviousResult;
|
|
result.wrappedJSObject.searchString = aUntrimmedSearchString;
|
|
|
|
let searchTokens = searchString.split(/\s+/);
|
|
// We have a list of results for a shorter search string, so just
|
|
// filter them further based on the new search string and add to a new array.
|
|
let entries = result.wrappedJSObject.entries;
|
|
let filteredEntries = [];
|
|
for (let i = 0; i < entries.length; i++) {
|
|
let entry = entries[i];
|
|
// Remove results that do not contain the token
|
|
// XXX bug 394604 -- .toLowerCase can be wrong for some intl chars
|
|
if(searchTokens.some(function (tok) entry.textLowerCase.indexOf(tok) < 0))
|
|
continue;
|
|
this._calculateScore(entry, searchString, searchTokens);
|
|
this.log("Reusing autocomplete entry '" + entry.text +
|
|
"' (" + entry.frecency +" / " + entry.totalScore + ")");
|
|
filteredEntries.push(entry);
|
|
}
|
|
filteredEntries.sort(sortBytotalScore);
|
|
result.wrappedJSObject.entries = filteredEntries;
|
|
} else {
|
|
this.log("Creating new autocomplete search result.");
|
|
let entries = this.getAutoCompleteValues(aInputName, searchString);
|
|
result = new FormAutoCompleteResult(this._formHistory, entries, aInputName, aUntrimmedSearchString);
|
|
if (aField && aField.maxLength > -1) {
|
|
let original = result.wrappedJSObject.entries;
|
|
let filtered = original.filter(function (el) el.text.length <= this.maxLength, aField);
|
|
result.wrappedJSObject.entries = filtered;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
},
|
|
|
|
getAutoCompleteValues : function (fieldName, searchString) {
|
|
let values = [];
|
|
let searchTokens;
|
|
|
|
let params = {
|
|
agedWeight: this._agedWeight,
|
|
bucketSize: this._bucketSize,
|
|
expiryDate: 1000 * (Date.now() - this._expireDays * 24 * 60 * 60 * 1000),
|
|
fieldname: fieldName,
|
|
maxTimeGroupings: this._maxTimeGroupings,
|
|
now: Date.now() * 1000, // convert from ms to microseconds
|
|
timeGroupingSize: this._timeGroupingSize
|
|
}
|
|
|
|
// only do substring matching when more than one character is typed
|
|
let where = ""
|
|
let boundaryCalc = "";
|
|
if (searchString.length > 1) {
|
|
searchTokens = searchString.split(/\s+/);
|
|
|
|
// build up the word boundary and prefix match bonus calculation
|
|
boundaryCalc = "MAX(1, :prefixWeight * (value LIKE :valuePrefix ESCAPE '/') + (";
|
|
// for each word, calculate word boundary weights for the SELECT clause and
|
|
// add word to the WHERE clause of the query
|
|
let tokenCalc = [];
|
|
for (let i = 0; i < searchTokens.length; i++) {
|
|
tokenCalc.push("(value LIKE :tokenBegin" + i + " ESCAPE '/') + " +
|
|
"(value LIKE :tokenBoundary" + i + " ESCAPE '/')");
|
|
where += "AND (value LIKE :tokenContains" + i + " ESCAPE '/') ";
|
|
}
|
|
// add more weight if we have a traditional prefix match and
|
|
// multiply boundary bonuses by boundary weight
|
|
boundaryCalc += tokenCalc.join(" + ") + ") * :boundaryWeight)";
|
|
params.prefixWeight = this._prefixWeight;
|
|
params.boundaryWeight = this._boundaryWeight;
|
|
} else if (searchString.length == 1) {
|
|
where = "AND (value LIKE :valuePrefix ESCAPE '/') ";
|
|
boundaryCalc = "1";
|
|
} else {
|
|
where = "";
|
|
boundaryCalc = "1";
|
|
}
|
|
/* Three factors in the frecency calculation for an entry (in order of use in calculation):
|
|
* 1) average number of times used - items used more are ranked higher
|
|
* 2) how recently it was last used - items used recently are ranked higher
|
|
* 3) additional weight for aged entries surviving expiry - these entries are relevant
|
|
* since they have been used multiple times over a large time span so rank them higher
|
|
* The score is then divided by the bucket size and we round the result so that entries
|
|
* with a very similar frecency are bucketed together with an alphabetical sort. This is
|
|
* to reduce the amount of moving around by entries while typing.
|
|
*/
|
|
|
|
let query = "SELECT value, " +
|
|
"ROUND( " +
|
|
"timesUsed / MAX(1.0, (lastUsed - firstUsed) / :timeGroupingSize) * " +
|
|
"MAX(1.0, :maxTimeGroupings - (:now - lastUsed) / :timeGroupingSize) * "+
|
|
"MAX(1.0, :agedWeight * (firstUsed < :expiryDate)) / " +
|
|
":bucketSize "+
|
|
", 3) AS frecency, " +
|
|
boundaryCalc + " AS boundaryBonuses " +
|
|
"FROM moz_formhistory " +
|
|
"WHERE fieldname=:fieldname " + where +
|
|
"ORDER BY ROUND(frecency * boundaryBonuses) DESC, UPPER(value) ASC";
|
|
|
|
let stmt;
|
|
try {
|
|
stmt = this._dbCreateStatement(query, params);
|
|
|
|
// Chicken and egg problem: Need the statement to escape the params we
|
|
// pass to the function that gives us the statement. So, fix it up now.
|
|
if (searchString.length >= 1)
|
|
stmt.params.valuePrefix = stmt.escapeStringForLIKE(searchString, "/") + "%";
|
|
if (searchString.length > 1) {
|
|
for (let i = 0; i < searchTokens.length; i++) {
|
|
let escapedToken = stmt.escapeStringForLIKE(searchTokens[i], "/");
|
|
stmt.params["tokenBegin" + i] = escapedToken + "%";
|
|
stmt.params["tokenBoundary" + i] = "% " + escapedToken + "%";
|
|
stmt.params["tokenContains" + i] = "%" + escapedToken + "%";
|
|
}
|
|
} else {
|
|
// no addional params need to be substituted into the query when the
|
|
// length is zero or one
|
|
}
|
|
|
|
while (stmt.executeStep()) {
|
|
let entry = {
|
|
text: stmt.row.value,
|
|
textLowerCase: stmt.row.value.toLowerCase(),
|
|
frecency: stmt.row.frecency,
|
|
totalScore: Math.round(stmt.row.frecency * stmt.row.boundaryBonuses)
|
|
}
|
|
values.push(entry);
|
|
}
|
|
|
|
} catch (e) {
|
|
this.log("getValues failed: " + e.name + " : " + e.message);
|
|
throw "DB failed getting form autocomplete values";
|
|
} finally {
|
|
if (stmt) {
|
|
stmt.reset();
|
|
}
|
|
}
|
|
|
|
return values;
|
|
},
|
|
|
|
|
|
_dbStmts : null,
|
|
|
|
_dbCreateStatement : function (query, params) {
|
|
let stmt = this._dbStmts[query];
|
|
// Memoize the statements
|
|
if (!stmt) {
|
|
this.log("Creating new statement for query: " + query);
|
|
stmt = this._formHistory.DBConnection.createStatement(query);
|
|
this._dbStmts[query] = stmt;
|
|
}
|
|
// Replace parameters, must be done 1 at a time
|
|
if (params) {
|
|
let stmtparams = stmt.params;
|
|
for (let i in params)
|
|
stmtparams[i] = params[i];
|
|
}
|
|
return stmt;
|
|
},
|
|
|
|
/*
|
|
* _calculateScore
|
|
*
|
|
* entry -- an nsIAutoCompleteResult entry
|
|
* aSearchString -- current value of the input (lowercase)
|
|
* searchTokens -- array of tokens of the search string
|
|
*
|
|
* Returns: an int
|
|
*/
|
|
_calculateScore : function (entry, aSearchString, searchTokens) {
|
|
let boundaryCalc = 0;
|
|
// for each word, calculate word boundary weights
|
|
for each (let token in searchTokens) {
|
|
boundaryCalc += (entry.textLowerCase.indexOf(token) == 0);
|
|
boundaryCalc += (entry.textLowerCase.indexOf(" " + token) >= 0);
|
|
}
|
|
boundaryCalc = boundaryCalc * this._boundaryWeight;
|
|
// now add more weight if we have a traditional prefix match and
|
|
// multiply boundary bonuses by boundary weight
|
|
boundaryCalc += this._prefixWeight *
|
|
(entry.textLowerCase.
|
|
indexOf(aSearchString) == 0);
|
|
entry.totalScore = Math.round(entry.frecency * Math.max(1, boundaryCalc));
|
|
}
|
|
|
|
}; // end of FormAutoComplete implementation
|
|
|
|
|
|
|
|
|
|
// nsIAutoCompleteResult implementation
|
|
function FormAutoCompleteResult (formHistory, entries, fieldName, searchString) {
|
|
this.formHistory = formHistory;
|
|
this.entries = entries;
|
|
this.fieldName = fieldName;
|
|
this.searchString = searchString;
|
|
}
|
|
|
|
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 (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 getValueAt(index);
|
|
},
|
|
|
|
getCommentAt : function (index) {
|
|
this._checkIndexBounds(index);
|
|
return "";
|
|
},
|
|
|
|
getStyleAt : function (index) {
|
|
this._checkIndexBounds(index);
|
|
return "";
|
|
},
|
|
|
|
getImageAt : function (index) {
|
|
this._checkIndexBounds(index);
|
|
return "";
|
|
},
|
|
|
|
removeValueAt : function (index, removeFromDB) {
|
|
this._checkIndexBounds(index);
|
|
|
|
let [removedEntry] = this.entries.splice(index, 1);
|
|
|
|
if (removeFromDB)
|
|
this.formHistory.removeEntry(this.fieldName, removedEntry.text);
|
|
}
|
|
};
|
|
|
|
let component = [FormAutoComplete];
|
|
var NSGetFactory = XPCOMUtils.generateNSGetFactory(component);
|