1 // Copyright 2014 The ChromeOS IME Authors. All Rights Reserved.
2 // limitations under the License.
3 // See the License for the specific language governing permissions and
4 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
5 // distributed under the License is distributed on an "AS-IS" BASIS,
6 // Unless required by applicable law or agreed to in writing, software
8 // http://www.apache.org/licenses/LICENSE-2.0
10 // You may obtain a copy of the License at
11 // you may not use this file except in compliance with the License.
12 // Licensed under the Apache License, Version 2.0 (the "License");
14 goog.provide('i18n.input.chrome.DataSource');
16 goog.require('goog.events');
17 goog.require('goog.events.Event');
18 goog.require('goog.events.EventTarget');
19 goog.require('goog.functions');
22 goog.scope(function() {
23 var Event = goog.events.Event;
24 var EventTarget = goog.events.EventTarget;
31 * @param {number} numOfCanddiate The number of canddiate to fetch.
32 * @param {function(string, !Array.<!Object>)} candidatesCallback .
33 * @param {function(!Array.<string>)} gestureCallback .
35 * @extends {EventTarget}
37 i18n.input.chrome.DataSource = function(numOfCanddiate, candidatesCallback,
42 * The number of candidates to fetch.
46 this.numOfCandidate = numOfCanddiate;
48 /** @protected {function(string, !Array.<!Object>)} */
49 this.candidatesCallback = candidatesCallback;
51 /** @protected {function(!Array.<string>)} */
52 this.gestureCallback = gestureCallback;
54 var DataSource = i18n.input.chrome.DataSource;
55 goog.inherits(DataSource, EventTarget);
63 DataSource.EventType = {
64 CANDIDATES_BACK: goog.events.getUniqueId('cb'),
65 GESTURES_BACK: goog.events.getUniqueId('gb'),
66 READY: goog.events.getUniqueId('r')
70 /** @type {boolean} */
71 DataSource.prototype.ready = false;
75 * The correction level.
79 DataSource.prototype.correctionLevel = 0;
83 * Whether user dict is enabled.
85 * @protected {boolean}
87 DataSource.prototype.enableUserDict = false;
96 DataSource.prototype.language;
100 * Sets the langauge code.
102 * @param {string} language The language code.
104 DataSource.prototype.setLanguage = function(language) {
105 this.language = language;
110 * True if the datasource is ready.
112 * @return {boolean} .
114 DataSource.prototype.isReady = function() {
120 * Creates the common payload for completion or prediction request.
122 * @return {!Object} The payload.
125 DataSource.prototype.createCommonPayload = function() {
127 'itc': this.getInputToolCode(),
128 'num': this.numOfCandidate
134 * Gets the input tool code.
138 DataSource.prototype.getInputToolCode = function() {
139 return this.language + '-t-i0-und';
144 * Sends completion request for a word.
146 * @param {string} word The word.
147 * @param {string} context The context.
149 DataSource.prototype.sendCompletionRequestForWord = goog.functions.NULL;
153 * Sends completion request.
155 * @param {string} query The query .
156 * @param {string} context The context .
157 * @param {!Object=} opt_spatialData .
159 DataSource.prototype.sendCompletionRequest = goog.functions.NULL;
163 * Enables/disables user dictionary.
165 * @param {boolean} enabled
167 DataSource.prototype.setEnableUserDict = function(enabled) {
168 this.enableUserDict = enabled;
173 * Sends prediciton request.
175 * @param {string} context The context.
177 DataSource.prototype.sendPredictionRequest = goog.functions.NULL;
181 * Sets the correction level.
183 * @param {number} level .
185 DataSource.prototype.setCorrectionLevel = function(level) {
186 this.correctionLevel = level;
191 * Changes frequency of word in the data source.
193 * @param {string} word The word to commit/change.
194 * @param {number} frequency The change in frequency.
196 DataSource.prototype.changeWordFrequency = goog.functions.NULL;
200 * Clears the data source.
202 DataSource.prototype.clear = goog.functions.NULL;
207 * The candidates are fetched back.
209 * @param {string} source The source.
210 * @param {!Array.<!Object>} candidates The candidates.
214 DataSource.CandidatesBackEvent = function(source, candidates) {
215 DataSource.CandidatesBackEvent.base(
216 this, 'constructor', DataSource.EventType.CANDIDATES_BACK);
223 this.source = source;
226 * The candidate list.
228 * @type {!Array.<!Object>}
230 this.candidates = candidates;
232 goog.inherits(DataSource.CandidatesBackEvent, Event);
237 * The gesture results are fetched back.
239 * @param {!Array.<!string>} results The gesture results.
243 DataSource.GesturesBackEvent = function(results) {
244 DataSource.GesturesBackEvent.base(
245 this, 'constructor', DataSource.EventType.GESTURES_BACK);
248 * The gesture results list.
250 * @type {!Array.<!string>}
252 this.results = results;
254 goog.inherits(DataSource.GesturesBackEvent, Event);