1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.text;
18 
19 import android.text.TextUtils;
20 
21 /**
22  * Bit definitions for an integer defining the basic content type of text
23  * held in an {@link Editable} object. Supported classes may be combined
24  * with variations and flags to indicate desired behaviors.
25  *
26  * <h3>Examples</h3>
27  *
28  * <dl>
29  * <dt>A password field with with the password visible to the user:
30  * <dd>inputType = TYPE_CLASS_TEXT |
31  *     TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
32  *
33  * <dt>A multi-line postal address with automatic capitalization:
34  * <dd>inputType = TYPE_CLASS_TEXT |
35  *     TYPE_TEXT_VARIATION_POSTAL_ADDRESS |
36  *     TYPE_TEXT_FLAG_MULTI_LINE
37  *
38  * <dt>A time field:
39  * <dd>inputType = TYPE_CLASS_DATETIME |
40  *     TYPE_DATETIME_VARIATION_TIME
41  * </dl>
42  */
43 public interface InputType {
44     /**
45      * Mask of bits that determine the overall class
46      * of text being given.  Currently supported classes are:
47      * {@link #TYPE_CLASS_TEXT}, {@link #TYPE_CLASS_NUMBER},
48      * {@link #TYPE_CLASS_PHONE}, {@link #TYPE_CLASS_DATETIME}.
49      * <p>IME authors: If the class is not one you
50      * understand, assume {@link #TYPE_CLASS_TEXT} with NO variation
51      * or flags.<p>
52      */
53     public static final int TYPE_MASK_CLASS = 0x0000000f;
54 
55     /**
56      * Mask of bits that determine the variation of
57      * the base content class.
58      */
59     public static final int TYPE_MASK_VARIATION = 0x00000ff0;
60 
61     /**
62      * Mask of bits that provide addition bit flags
63      * of options.
64      */
65     public static final int TYPE_MASK_FLAGS = 0x00fff000;
66 
67     /**
68      * Special content type for when no explicit type has been specified.
69      * This should be interpreted to mean that the target input connection
70      * is not rich, it can not process and show things like candidate text nor
71      * retrieve the current text, so the input method will need to run in a
72      * limited "generate key events" mode, if it supports it. Note that some
73      * input methods may not support it, for example a voice-based input
74      * method will likely not be able to generate key events even if this
75      * flag is set.
76      */
77     public static final int TYPE_NULL = 0x00000000;
78 
79     // ----------------------------------------------------------------------
80     // ----------------------------------------------------------------------
81     // ----------------------------------------------------------------------
82 
83     /**
84      * Class for normal text.  This class supports the following flags (only
85      * one of which should be set):
86      * {@link #TYPE_TEXT_FLAG_CAP_CHARACTERS},
87      * {@link #TYPE_TEXT_FLAG_CAP_WORDS}, and.
88      * {@link #TYPE_TEXT_FLAG_CAP_SENTENCES}.  It also supports the
89      * following variations:
90      * {@link #TYPE_TEXT_VARIATION_NORMAL}, and
91      * {@link #TYPE_TEXT_VARIATION_URI}.  If you do not recognize the
92      * variation, normal should be assumed.
93      */
94     public static final int TYPE_CLASS_TEXT = 0x00000001;
95 
96     /**
97      * Flag for {@link #TYPE_CLASS_TEXT}: capitalize all characters.  Overrides
98      * {@link #TYPE_TEXT_FLAG_CAP_WORDS} and
99      * {@link #TYPE_TEXT_FLAG_CAP_SENTENCES}.  This value is explicitly defined
100      * to be the same as {@link TextUtils#CAP_MODE_CHARACTERS}. Of course,
101      * this only affects languages where there are upper-case and lower-case letters.
102      */
103     public static final int TYPE_TEXT_FLAG_CAP_CHARACTERS = 0x00001000;
104 
105     /**
106      * Flag for {@link #TYPE_CLASS_TEXT}: capitalize the first character of
107      * every word.  Overrides {@link #TYPE_TEXT_FLAG_CAP_SENTENCES}.  This
108      * value is explicitly defined
109      * to be the same as {@link TextUtils#CAP_MODE_WORDS}. Of course,
110      * this only affects languages where there are upper-case and lower-case letters.
111      */
112     public static final int TYPE_TEXT_FLAG_CAP_WORDS = 0x00002000;
113 
114     /**
115      * Flag for {@link #TYPE_CLASS_TEXT}: capitalize the first character of
116      * each sentence.  This value is explicitly defined
117      * to be the same as {@link TextUtils#CAP_MODE_SENTENCES}. For example
118      * in English it means to capitalize after a period and a space (note that other
119      * languages may have different characters for period, or not use spaces,
120      * or use different grammatical rules). Of course,
121      * this only affects languages where there are upper-case and lower-case letters.
122      */
123     public static final int TYPE_TEXT_FLAG_CAP_SENTENCES = 0x00004000;
124 
125     /**
126      * Flag for {@link #TYPE_CLASS_TEXT}: the user is entering free-form
127      * text that should have auto-correction applied to it. Without this flag,
128      * the IME will not try to correct typos. You should always set this flag
129      * unless you really expect users to type non-words in this field, for
130      * example to choose a name for a character in a game.
131      * Contrast this with {@link #TYPE_TEXT_FLAG_AUTO_COMPLETE} and
132      * {@link #TYPE_TEXT_FLAG_NO_SUGGESTIONS}:
133      * {@code TYPE_TEXT_FLAG_AUTO_CORRECT} means that the IME will try to
134      * auto-correct typos as the user is typing, but does not define whether
135      * the IME offers an interface to show suggestions.
136      */
137     public static final int TYPE_TEXT_FLAG_AUTO_CORRECT = 0x00008000;
138 
139     /**
140      * Flag for {@link #TYPE_CLASS_TEXT}: the text editor (which means
141      * the application) is performing auto-completion of the text being entered
142      * based on its own semantics, which it will present to the user as they type.
143      * This generally means that the input method should not be showing
144      * candidates itself, but can expect the editor to supply its own
145      * completions/candidates from
146      * {@link android.view.inputmethod.InputMethodSession#displayCompletions
147      * InputMethodSession.displayCompletions()} as a result of the editor calling
148      * {@link android.view.inputmethod.InputMethodManager#displayCompletions
149      * InputMethodManager.displayCompletions()}.
150      * Note the contrast with {@link #TYPE_TEXT_FLAG_AUTO_CORRECT} and
151      * {@link #TYPE_TEXT_FLAG_NO_SUGGESTIONS}:
152      * {@code TYPE_TEXT_FLAG_AUTO_COMPLETE} means the editor should show an
153      * interface for displaying suggestions, but instead of supplying its own
154      * it will rely on the Editor to pass completions/corrections.
155      */
156     public static final int TYPE_TEXT_FLAG_AUTO_COMPLETE = 0x00010000;
157 
158     /**
159      * Flag for {@link #TYPE_CLASS_TEXT}: multiple lines of text can be
160      * entered into the field.  If this flag is not set, the text field
161      * will be constrained to a single line. The IME may also choose not to
162      * display an enter key when this flag is not set, as there should be no
163      * need to create new lines.
164      */
165     public static final int TYPE_TEXT_FLAG_MULTI_LINE = 0x00020000;
166 
167     /**
168      * Flag for {@link #TYPE_CLASS_TEXT}: the regular text view associated
169      * with this should not be multi-line, but when a fullscreen input method
170      * is providing text it should use multiple lines if it can.
171      */
172     public static final int TYPE_TEXT_FLAG_IME_MULTI_LINE = 0x00040000;
173 
174     /**
175      * Flag for {@link #TYPE_CLASS_TEXT}: the input method does not need to
176      * display any dictionary-based candidates. This is useful for text views that
177      * do not contain words from the language and do not benefit from any
178      * dictionary-based completions or corrections. It overrides the
179      * {@link #TYPE_TEXT_FLAG_AUTO_CORRECT} value when set.
180      * Please avoid using this unless you are certain this is what you want.
181      * Many input methods need suggestions to work well, for example the ones
182      * based on gesture typing. Consider clearing
183      * {@link #TYPE_TEXT_FLAG_AUTO_CORRECT} instead if you just do not
184      * want the IME to correct typos.
185      * Note the contrast with {@link #TYPE_TEXT_FLAG_AUTO_CORRECT} and
186      * {@link #TYPE_TEXT_FLAG_AUTO_COMPLETE}:
187      * {@code TYPE_TEXT_FLAG_NO_SUGGESTIONS} means the IME should never
188      * show an interface to display suggestions. Most IMEs will also take this to
189      * mean they should not try to auto-correct what the user is typing.
190      */
191     public static final int TYPE_TEXT_FLAG_NO_SUGGESTIONS = 0x00080000;
192 
193     // ----------------------------------------------------------------------
194 
195     /**
196      * Default variation of {@link #TYPE_CLASS_TEXT}: plain old normal text.
197      */
198     public static final int TYPE_TEXT_VARIATION_NORMAL = 0x00000000;
199 
200     /**
201      * Variation of {@link #TYPE_CLASS_TEXT}: entering a URI.
202      */
203     public static final int TYPE_TEXT_VARIATION_URI = 0x00000010;
204 
205     /**
206      * Variation of {@link #TYPE_CLASS_TEXT}: entering an e-mail address.
207      */
208     public static final int TYPE_TEXT_VARIATION_EMAIL_ADDRESS = 0x00000020;
209 
210     /**
211      * Variation of {@link #TYPE_CLASS_TEXT}: entering the subject line of
212      * an e-mail.
213      */
214     public static final int TYPE_TEXT_VARIATION_EMAIL_SUBJECT = 0x00000030;
215 
216     /**
217      * Variation of {@link #TYPE_CLASS_TEXT}: entering a short, possibly informal
218      * message such as an instant message or a text message.
219      */
220     public static final int TYPE_TEXT_VARIATION_SHORT_MESSAGE = 0x00000040;
221 
222     /**
223      * Variation of {@link #TYPE_CLASS_TEXT}: entering the content of a long, possibly
224      * formal message such as the body of an e-mail.
225      */
226     public static final int TYPE_TEXT_VARIATION_LONG_MESSAGE = 0x00000050;
227 
228     /**
229      * Variation of {@link #TYPE_CLASS_TEXT}: entering the name of a person.
230      */
231     public static final int TYPE_TEXT_VARIATION_PERSON_NAME = 0x00000060;
232 
233     /**
234      * Variation of {@link #TYPE_CLASS_TEXT}: entering a postal mailing address.
235      */
236     public static final int TYPE_TEXT_VARIATION_POSTAL_ADDRESS = 0x00000070;
237 
238     /**
239      * Variation of {@link #TYPE_CLASS_TEXT}: entering a password.
240      */
241     public static final int TYPE_TEXT_VARIATION_PASSWORD = 0x00000080;
242 
243     /**
244      * Variation of {@link #TYPE_CLASS_TEXT}: entering a password, which should
245      * be visible to the user.
246      */
247     public static final int TYPE_TEXT_VARIATION_VISIBLE_PASSWORD = 0x00000090;
248 
249     /**
250      * Variation of {@link #TYPE_CLASS_TEXT}: entering text inside of a web form.
251      */
252     public static final int TYPE_TEXT_VARIATION_WEB_EDIT_TEXT = 0x000000a0;
253 
254     /**
255      * Variation of {@link #TYPE_CLASS_TEXT}: entering text to filter contents
256      * of a list etc.
257      */
258     public static final int TYPE_TEXT_VARIATION_FILTER = 0x000000b0;
259 
260     /**
261      * Variation of {@link #TYPE_CLASS_TEXT}: entering text for phonetic
262      * pronunciation, such as a phonetic name field in contacts. This is mostly
263      * useful for languages where one spelling may have several phonetic
264      * readings, like Japanese.
265      */
266     public static final int TYPE_TEXT_VARIATION_PHONETIC = 0x000000c0;
267 
268     /**
269      * Variation of {@link #TYPE_CLASS_TEXT}: entering e-mail address inside
270      * of a web form.  This was added in
271      * {@link android.os.Build.VERSION_CODES#HONEYCOMB}.  An IME must target
272      * this API version or later to see this input type; if it doesn't, a request
273      * for this type will be seen as {@link #TYPE_TEXT_VARIATION_EMAIL_ADDRESS}
274      * when passed through {@link android.view.inputmethod.EditorInfo#makeCompatible(int)
275      * EditorInfo.makeCompatible(int)}.
276      */
277     public static final int TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS = 0x000000d0;
278 
279     /**
280      * Variation of {@link #TYPE_CLASS_TEXT}: entering password inside
281      * of a web form.  This was added in
282      * {@link android.os.Build.VERSION_CODES#HONEYCOMB}.  An IME must target
283      * this API version or later to see this input type; if it doesn't, a request
284      * for this type will be seen as {@link #TYPE_TEXT_VARIATION_PASSWORD}
285      * when passed through {@link android.view.inputmethod.EditorInfo#makeCompatible(int)
286      * EditorInfo.makeCompatible(int)}.
287      */
288     public static final int TYPE_TEXT_VARIATION_WEB_PASSWORD = 0x000000e0;
289 
290     // ----------------------------------------------------------------------
291     // ----------------------------------------------------------------------
292     // ----------------------------------------------------------------------
293 
294     /**
295      * Class for numeric text.  This class supports the following flags:
296      * {@link #TYPE_NUMBER_FLAG_SIGNED} and
297      * {@link #TYPE_NUMBER_FLAG_DECIMAL}.  It also supports the following
298      * variations: {@link #TYPE_NUMBER_VARIATION_NORMAL} and
299      * {@link #TYPE_NUMBER_VARIATION_PASSWORD}.
300      * <p>IME authors: If you do not recognize
301      * the variation, normal should be assumed.</p>
302      */
303     public static final int TYPE_CLASS_NUMBER = 0x00000002;
304 
305     /**
306      * Flag of {@link #TYPE_CLASS_NUMBER}: the number is signed, allowing
307      * a positive or negative sign at the start.
308      */
309     public static final int TYPE_NUMBER_FLAG_SIGNED = 0x00001000;
310 
311     /**
312      * Flag of {@link #TYPE_CLASS_NUMBER}: the number is decimal, allowing
313      * a decimal point to provide fractional values.
314      */
315     public static final int TYPE_NUMBER_FLAG_DECIMAL = 0x00002000;
316 
317     // ----------------------------------------------------------------------
318 
319     /**
320      * Default variation of {@link #TYPE_CLASS_NUMBER}: plain normal
321      * numeric text.  This was added in
322      * {@link android.os.Build.VERSION_CODES#HONEYCOMB}.  An IME must target
323      * this API version or later to see this input type; if it doesn't, a request
324      * for this type will be dropped when passed through
325      * {@link android.view.inputmethod.EditorInfo#makeCompatible(int)
326      * EditorInfo.makeCompatible(int)}.
327      */
328     public static final int TYPE_NUMBER_VARIATION_NORMAL = 0x00000000;
329 
330     /**
331      * Variation of {@link #TYPE_CLASS_NUMBER}: entering a numeric password.
332      * This was added in {@link android.os.Build.VERSION_CODES#HONEYCOMB}.  An
333      * IME must target this API version or later to see this input type; if it
334      * doesn't, a request for this type will be dropped when passed
335      * through {@link android.view.inputmethod.EditorInfo#makeCompatible(int)
336      * EditorInfo.makeCompatible(int)}.
337      */
338     public static final int TYPE_NUMBER_VARIATION_PASSWORD = 0x00000010;
339 
340     // ----------------------------------------------------------------------
341     // ----------------------------------------------------------------------
342     // ----------------------------------------------------------------------
343 
344     /**
345      * Class for a phone number.  This class currently supports no variations
346      * or flags.
347      */
348     public static final int TYPE_CLASS_PHONE = 0x00000003;
349 
350     // ----------------------------------------------------------------------
351     // ----------------------------------------------------------------------
352     // ----------------------------------------------------------------------
353 
354     /**
355      * Class for dates and times.  It supports the
356      * following variations:
357      * {@link #TYPE_DATETIME_VARIATION_NORMAL}
358      * {@link #TYPE_DATETIME_VARIATION_DATE}, and
359      * {@link #TYPE_DATETIME_VARIATION_TIME}.
360      */
361     public static final int TYPE_CLASS_DATETIME = 0x00000004;
362 
363     /**
364      * Default variation of {@link #TYPE_CLASS_DATETIME}: allows entering
365      * both a date and time.
366      */
367     public static final int TYPE_DATETIME_VARIATION_NORMAL = 0x00000000;
368 
369     /**
370      * Default variation of {@link #TYPE_CLASS_DATETIME}: allows entering
371      * only a date.
372      */
373     public static final int TYPE_DATETIME_VARIATION_DATE = 0x00000010;
374 
375     /**
376      * Default variation of {@link #TYPE_CLASS_DATETIME}: allows entering
377      * only a time.
378      */
379     public static final int TYPE_DATETIME_VARIATION_TIME = 0x00000020;
380 }
381