1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/* 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/. */
import { FormAutoCompleteResult } from "resource://gre/modules/nsFormAutoCompleteResult.sys.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
FormAutoCompleteResult: "resource://gre/modules/FormAutoComplete.sys.mjs",
FormHistoryClient: "resource://gre/modules/FormAutoComplete.sys.mjs",
SearchSuggestionController:
"resource://gre/modules/SearchSuggestionController.sys.mjs",
});
/**
* SuggestAutoComplete is a base class that implements nsIAutoCompleteSearch
* and can collect results for a given search by using this.#suggestionController.
* We do it this way since the AutoCompleteController in Mozilla requires a
* unique XPCOM Service for every search provider, even if the logic for two
* providers is identical.
*
* @class
*/
class SuggestAutoComplete {
constructor() {
this.#suggestionController = new lazy.SearchSuggestionController();
this.#suggestionController.maxLocalResults = this.#historyLimit;
}
/**
* Notifies the front end of new results.
*
* @param {string} searchString
* The user's query string.
* @param {Array} results
* An array of results to the search.
* @param {object} formHistoryResult
* Any previous form history result.
* @private
*/
onResultsReady(searchString, results, formHistoryResult) {
if (this.#listener) {
let result = new FormAutoCompleteResult(
searchString,
Ci.nsIAutoCompleteResult.RESULT_SUCCESS,
0,
"",
results.map(result => ({
value: result,
label: result,
// We supply the comments field so that autocomplete does not kick
// in the unescaping of the results for display which it uses for
// urls.
comment: result,
removable: true,
})),
formHistoryResult
);
this.#listener.onSearchResult(this, result);
// Null out listener to make sure we don't notify it twice
this.#listener = null;
}
}
/**
* Initiates the search result gathering process. Part of
* nsIAutoCompleteSearch implementation.
*
* @param {string} searchString
* The user's query string.
* @param {string} searchParam
* unused, "an extra parameter"; even though this parameter and the
* next are unused, pass them through in case the form history
* service wants them
* @param {object} previousResult
* unused, a client-cached store of the previous generated resultset
* for faster searching.
* @param {object} listener
* object implementing nsIAutoCompleteObserver which we notify when
* results are ready.
*/
startSearch(searchString, searchParam, previousResult, listener) {
var formHistorySearchParam = searchParam.split("|")[0];
// Receive the information about the privacy mode of the window to which
// this search box belongs. The front-end's search.xml bindings passes this
// information in the searchParam parameter. The alternative would have
// been to modify nsIAutoCompleteSearch to add an argument to startSearch
// and patch all of autocomplete to be aware of this, but the searchParam
// argument is already an opaque argument, so this solution is hopefully
// less hackish (although still gross.)
var privacyMode = searchParam.split("|")[1] == "private";
// Start search immediately if possible, otherwise once the search
// service is initialized
if (Services.search.isInitialized) {
this.#triggerSearch(
searchString,
formHistorySearchParam,
listener,
privacyMode
).catch(console.error);
return;
}
Services.search
.init()
.then(() => {
this.#triggerSearch(
searchString,
formHistorySearchParam,
listener,
privacyMode
).catch(console.error);
})
.catch(result =>
console.error(
"Could not initialize search service, bailing out: " + result
)
);
}
/**
* Ends the search result gathering process. Part of nsIAutoCompleteSearch
* implementation.
*/
stopSearch() {
this.#suggestionController.stop();
}
#suggestionController;
/**
* Maximum number of history items displayed. This is capped at 7
* because the primary consumer (Firefox search bar) displays 10 rows
* by default, and so we want to leave some space for suggestions
* to be visible.
*
* @type {number}
*/
#historyLimit = 7;
/**
* The object implementing nsIAutoCompleteObserver that we notify when
* we have found results.
*
* @type {object|null}
*/
#listener = null;
/**
* Actual implementation of search.
*
* @param {string} searchString
* The user's query string.
* @param {string} searchParam
* unused
* @param {object} listener
* object implementing nsIAutoCompleteObserver which we notify when
* results are ready.
* @param {boolean} privacyMode
* True if the search was made from a private browsing mode context.
*/
async #triggerSearch(searchString, searchParam, listener, privacyMode) {
this.#listener = listener;
let results = await this.#suggestionController.fetch(
searchString,
privacyMode,
Services.search.defaultEngine
);
// If form history has results, add them to the list.
let finalResults = results.local.map(r => r.value);
// If there are remote matches, add them.
if (results.remote.length) {
// now put the history results above the suggestions
// We shouldn't show tail suggestions in their full-text form.
let nonTailEntries = results.remote.filter(
e => !e.matchPrefix && !e.tail
);
finalResults = finalResults.concat(nonTailEntries.map(e => e.value));
}
// Bug 1822297: This re-uses the wrappers from Satchel, to avoid re-writing
// our own nsIAutoCompleteSimpleResult implementation for now. However,
// we should do that at some stage to remove the dependency on satchel.
let client = new lazy.FormHistoryClient({
formField: null,
inputName: this.#suggestionController.formHistoryParam,
});
let formHistoryResult = new lazy.FormAutoCompleteResult(
client,
results.formHistoryResults,
this.#suggestionController.formHistoryParam,
searchString
);
// Notify the FE of our new results
this.onResultsReady(results.term, finalResults, formHistoryResult);
}
QueryInterface = ChromeUtils.generateQI([
"nsIAutoCompleteSearch",
"nsIAutoCompleteObserver",
]);
}
/**
* SearchSuggestAutoComplete is a service implementation that handles suggest
* results specific to web searches.
*
* @class
*/
export class SearchSuggestAutoComplete extends SuggestAutoComplete {
classID = Components.ID("{aa892eb4-ffbf-477d-9f9a-06c995ae9f27}");
serviceURL = "";
}
|
