michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: const Ci = Components.interfaces;
michael@0: 
michael@0: Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: Components.utils.import("resource://gre/modules/Services.jsm");
michael@0: Components.utils.import("resource://gre/modules/nsFormAutoCompleteResult.jsm");
michael@0: 
michael@0: function InputListAutoComplete() {}
michael@0: 
michael@0: InputListAutoComplete.prototype = {
michael@0:   classID       : Components.ID("{bf1e01d0-953e-11df-981c-0800200c9a66}"),
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsIInputListAutoComplete]),
michael@0: 
michael@0:   autoCompleteSearch : function (formHistoryResult, aUntrimmedSearchString, aField) {
michael@0:     let comments = []; // "comments" column values for suggestions
michael@0:     let [values, labels] = this.getListSuggestions(aField);
michael@0:     let historyResults = [];
michael@0:     let historyComments = [];
michael@0: 
michael@0:     // formHistoryResult will be null if form autocomplete is disabled.
michael@0:     // We still want the list values to display.
michael@0:     if (formHistoryResult) {
michael@0:       entries = formHistoryResult.wrappedJSObject.entries;
michael@0:       for (let i = 0; i < entries.length; ++i) {
michael@0:         historyResults.push(entries[i].text);
michael@0:         historyComments.push("");
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     // fill out the comment column for the suggestions
michael@0:     // if we have any suggestions, put a label at the top
michael@0:     if (values.length) {
michael@0:       comments[0] = "separator";
michael@0:     }
michael@0:     for (let i = 1; i < values.length; ++i) {
michael@0:       comments.push("");
michael@0:     }
michael@0: 
michael@0:     // now put the history results above the suggestions
michael@0:     let finalValues = historyResults.concat(values);
michael@0:     let finalLabels = historyResults.concat(labels);
michael@0:     let finalComments = historyComments.concat(comments);
michael@0: 
michael@0:     return new FormAutoCompleteResult(aUntrimmedSearchString,
michael@0:                                       Ci.nsIAutoCompleteResult.RESULT_SUCCESS,
michael@0:                                       0, "", finalValues, finalLabels,
michael@0:                                       finalComments, formHistoryResult);
michael@0:   },
michael@0: 
michael@0:   getListSuggestions : function (aField) {
michael@0:     let values = [];
michael@0:     let labels = [];
michael@0: 
michael@0:     if (aField) {
michael@0:       let filter = !aField.hasAttribute("mozNoFilter");
michael@0:       let lowerFieldValue = aField.value.toLowerCase();
michael@0: 
michael@0:       if (aField.list) {
michael@0:         let options = aField.list.options;
michael@0:         let length = options.length;
michael@0:         for (let i = 0; i < length; i++) {
michael@0:           let item = options.item(i);
michael@0:           let label = "";
michael@0:           if (item.label) {
michael@0:             label = item.label;
michael@0:           } else if (item.text) {
michael@0:             label = item.text;
michael@0:           } else {
michael@0:             label = item.value;
michael@0:           }
michael@0: 
michael@0:           if (filter && label.toLowerCase().indexOf(lowerFieldValue) == -1) {
michael@0:             continue;
michael@0:           }
michael@0: 
michael@0:           labels.push(label);
michael@0:           values.push(item.value);
michael@0:         }
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     return [values, labels];
michael@0:   }
michael@0: };
michael@0: 
michael@0: let component = [InputListAutoComplete];
michael@0: this.NSGetFactory = XPCOMUtils.generateNSGetFactory(component);