Home | History | Annotate | Download | only in text
      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