gecko-dev/toolkit/components/satchel/nsInputListAutoComplete.js

91 строка
3.0 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 Ci = Components.interfaces;
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
Components.utils.import("resource://gre/modules/nsFormAutoCompleteResult.jsm");
function InputListAutoComplete() {}
InputListAutoComplete.prototype = {
classID : Components.ID("{bf1e01d0-953e-11df-981c-0800200c9a66}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIInputListAutoComplete]),
autoCompleteSearch : function (formHistoryResult, aUntrimmedSearchString, aField) {
let comments = []; // "comments" column values for suggestions
let [values, labels] = this.getListSuggestions(aField);
let historyResults = [];
let historyComments = [];
// formHistoryResult will be null if form autocomplete is disabled.
// We still want the list values to display.
if (formHistoryResult) {
entries = formHistoryResult.wrappedJSObject.entries;
for (let i = 0; i < entries.length; ++i) {
historyResults.push(entries[i].text);
historyComments.push("");
}
}
// fill out the comment column for the suggestions
// if we have any suggestions, put a label at the top
if (values.length) {
comments[0] = "separator";
}
for (let i = 1; i < values.length; ++i) {
comments.push("");
}
// now put the history results above the suggestions
let finalValues = historyResults.concat(values);
let finalLabels = historyResults.concat(labels);
let finalComments = historyComments.concat(comments);
return new FormAutoCompleteResult(aUntrimmedSearchString,
Ci.nsIAutoCompleteResult.RESULT_SUCCESS,
0, "", finalValues, finalLabels,
finalComments, formHistoryResult);
},
getListSuggestions : function (aField) {
let values = [];
let labels = [];
if (aField) {
let filter = !aField.hasAttribute("mozNoFilter");
let lowerFieldValue = aField.value.toLowerCase();
if (aField.list) {
let options = aField.list.options;
let length = options.length;
for (let i = 0; i < length; i++) {
let item = options.item(i);
let label = "";
if (item.label) {
label = item.label;
} else if (item.text) {
label = item.text;
} else {
label = item.value;
}
if (filter && label.toLowerCase().indexOf(lowerFieldValue) == -1) {
continue;
}
labels.push(label);
values.push(item.value);
}
}
}
return [values, labels];
}
};
let component = [InputListAutoComplete];
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(component);