LatinIME/java/src/com/android/inputmethod/latin/Constants.java

321 lines
13 KiB
Java

/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.latin;
public final class Constants {
public static final class Color {
/**
* The alpha value for fully opaque.
*/
public final static int ALPHA_OPAQUE = 255;
}
public static final class ImeOption {
/**
* The private IME option used to indicate that no microphone should be shown for a given
* text field. For instance, this is specified by the search dialog when the dialog is
* already showing a voice search button.
*
* @deprecated Use {@link ImeOption#NO_MICROPHONE} with package name prefixed.
*/
@SuppressWarnings("dep-ann")
public static final String NO_MICROPHONE_COMPAT = "nm";
/**
* The private IME option used to indicate that no microphone should be shown for a given
* text field. For instance, this is specified by the search dialog when the dialog is
* already showing a voice search button.
*/
public static final String NO_MICROPHONE = "noMicrophoneKey";
/**
* The private IME option used to indicate that no settings key should be shown for a given
* text field.
*/
public static final String NO_SETTINGS_KEY = "noSettingsKey";
/**
* The private IME option used to indicate that the given text field needs ASCII code points
* input.
*
* @deprecated Use EditorInfo#IME_FLAG_FORCE_ASCII.
*/
@SuppressWarnings("dep-ann")
public static final String FORCE_ASCII = "forceAscii";
/**
* The private IME option used to suppress the floating gesture preview for a given text
* field. This overrides the corresponding keyboard settings preference.
* {@link com.android.inputmethod.latin.settings.SettingsValues#mGestureFloatingPreviewTextEnabled}
*/
public static final String NO_FLOATING_GESTURE_PREVIEW = "noGestureFloatingPreview";
private ImeOption() {
// This utility class is not publicly instantiable.
}
}
public static final class Subtype {
/**
* The subtype mode used to indicate that the subtype is a keyboard.
*/
public static final String KEYBOARD_MODE = "keyboard";
public static final class ExtraValue {
/**
* The subtype extra value used to indicate that this subtype is capable of
* entering ASCII characters.
*/
public static final String ASCII_CAPABLE = "AsciiCapable";
/**
* The subtype extra value used to indicate that this subtype is enabled
* when the default subtype is not marked as ascii capable.
*/
public static final String ENABLED_WHEN_DEFAULT_IS_NOT_ASCII_CAPABLE =
"EnabledWhenDefaultIsNotAsciiCapable";
/**
* The subtype extra value used to indicate that this subtype is capable of
* entering emoji characters.
*/
public static final String EMOJI_CAPABLE = "EmojiCapable";
/**
* The subtype extra value used to indicate that this subtype requires a network
* connection to work.
*/
public static final String REQ_NETWORK_CONNECTIVITY = "requireNetworkConnectivity";
/**
* The subtype extra value used to indicate that the display name of this subtype
* contains a "%s" for printf-like replacement and it should be replaced by
* this extra value.
* This extra value is supported on JellyBean and later.
*/
public static final String UNTRANSLATABLE_STRING_IN_SUBTYPE_NAME =
"UntranslatableReplacementStringInSubtypeName";
/**
* The subtype extra value used to indicate this subtype keyboard layout set name.
* This extra value is private to LatinIME.
*/
public static final String KEYBOARD_LAYOUT_SET = "KeyboardLayoutSet";
/**
* The subtype extra value used to indicate that this subtype is an additional subtype
* that the user defined. This extra value is private to LatinIME.
*/
public static final String IS_ADDITIONAL_SUBTYPE = "isAdditionalSubtype";
/**
* The subtype extra value used to specify the combining rules.
*/
public static final String COMBINING_RULES = "CombiningRules";
private ExtraValue() {
// This utility class is not publicly instantiable.
}
}
private Subtype() {
// This utility class is not publicly instantiable.
}
}
public static final class TextUtils {
/**
* Capitalization mode for {@link android.text.TextUtils#getCapsMode}: don't capitalize
* characters. This value may be used with
* {@link android.text.TextUtils#CAP_MODE_CHARACTERS},
* {@link android.text.TextUtils#CAP_MODE_WORDS}, and
* {@link android.text.TextUtils#CAP_MODE_SENTENCES}.
*/
// TODO: Straighten this out. It's bizarre to have to use android.text.TextUtils.CAP_MODE_*
// except for OFF that is in Constants.TextUtils.
public static final int CAP_MODE_OFF = 0;
private TextUtils() {
// This utility class is not publicly instantiable.
}
}
public static final int NOT_A_CODE = -1;
public static final int NOT_A_CURSOR_POSITION = -1;
// TODO: replace the following constants with state in InputTransaction?
public static final int NOT_A_COORDINATE = -1;
public static final int SUGGESTION_STRIP_COORDINATE = -2;
public static final int SPELL_CHECKER_COORDINATE = -3;
public static final int EXTERNAL_KEYBOARD_COORDINATE = -4;
// A hint on how many characters to cache from the TextView. A good value of this is given by
// how many characters we need to be able to almost always find the caps mode.
public static final int EDITOR_CONTENTS_CACHE_SIZE = 1024;
// How many characters we accept for the recapitalization functionality. This needs to be
// large enough for all reasonable purposes, but avoid purposeful attacks. 100k sounds about
// right for this.
public static final int MAX_CHARACTERS_FOR_RECAPITALIZATION = 1024 * 100;
// Must be equal to MAX_WORD_LENGTH in native/jni/src/defines.h
public static final int DICTIONARY_MAX_WORD_LENGTH = 48;
// (MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1)-gram is supported in Java side. Needs to modify
// MAX_PREV_WORD_COUNT_FOR_N_GRAM in native/jni/src/defines.h for suggestions.
public static final int MAX_PREV_WORD_COUNT_FOR_N_GRAM = 2;
// Key events coming any faster than this are long-presses.
public static final int LONG_PRESS_MILLISECONDS = 200;
// TODO: Set this value appropriately.
public static final int GET_SUGGESTED_WORDS_TIMEOUT = 200;
// How many continuous deletes at which to start deleting at a higher speed.
public static final int DELETE_ACCELERATE_AT = 20;
public static final String WORD_SEPARATOR = " ";
public static boolean isValidCoordinate(final int coordinate) {
// Detect {@link NOT_A_COORDINATE}, {@link SUGGESTION_STRIP_COORDINATE},
// and {@link SPELL_CHECKER_COORDINATE}.
return coordinate >= 0;
}
/**
* Custom request code used in
* {@link com.android.inputmethod.keyboard.KeyboardActionListener#onCustomRequest(int)}.
*/
// The code to show input method picker.
public static final int CUSTOM_CODE_SHOW_INPUT_METHOD_PICKER = 1;
/**
* Some common keys code. Must be positive.
*/
public static final int CODE_ENTER = '\n';
public static final int CODE_TAB = '\t';
public static final int CODE_SPACE = ' ';
public static final int CODE_PERIOD = '.';
public static final int CODE_COMMA = ',';
public static final int CODE_DASH = '-';
public static final int CODE_SINGLE_QUOTE = '\'';
public static final int CODE_DOUBLE_QUOTE = '"';
public static final int CODE_QUESTION_MARK = '?';
public static final int CODE_EXCLAMATION_MARK = '!';
public static final int CODE_SLASH = '/';
public static final int CODE_BACKSLASH = '\\';
public static final int CODE_VERTICAL_BAR = '|';
public static final int CODE_COMMERCIAL_AT = '@';
public static final int CODE_PLUS = '+';
public static final int CODE_PERCENT = '%';
public static final int CODE_CLOSING_PARENTHESIS = ')';
public static final int CODE_CLOSING_SQUARE_BRACKET = ']';
public static final int CODE_CLOSING_CURLY_BRACKET = '}';
public static final int CODE_CLOSING_ANGLE_BRACKET = '>';
public static final int CODE_INVERTED_QUESTION_MARK = 0xBF; // ¿
public static final int CODE_INVERTED_EXCLAMATION_MARK = 0xA1; // ¡
public static final int CODE_GRAVE_ACCENT = '`';
public static final int CODE_CIRCUMFLEX_ACCENT = '^';
public static final int CODE_TILDE = '~';
public static final String REGEXP_PERIOD = "\\.";
public static final String STRING_SPACE = " ";
/**
* Special keys code. Must be negative.
* These should be aligned with {@link KeyboardCodesSet#ID_TO_NAME},
* {@link KeyboardCodesSet#DEFAULT}, and {@link KeyboardCodesSet#RTL}.
*/
public static final int CODE_SHIFT = -1;
public static final int CODE_CAPSLOCK = -2;
public static final int CODE_SWITCH_ALPHA_SYMBOL = -3;
public static final int CODE_OUTPUT_TEXT = -4;
public static final int CODE_DELETE = -5;
public static final int CODE_SETTINGS = -6;
public static final int CODE_SHORTCUT = -7;
public static final int CODE_ACTION_NEXT = -8;
public static final int CODE_ACTION_PREVIOUS = -9;
public static final int CODE_LANGUAGE_SWITCH = -10;
public static final int CODE_EMOJI = -11;
public static final int CODE_SHIFT_ENTER = -12;
public static final int CODE_SYMBOL_SHIFT = -13;
public static final int CODE_ALPHA_FROM_EMOJI = -14;
// Code value representing the code is not specified.
public static final int CODE_UNSPECIFIED = -15;
public static boolean isLetterCode(final int code) {
return code >= CODE_SPACE;
}
public static String printableCode(final int code) {
switch (code) {
case CODE_SHIFT: return "shift";
case CODE_CAPSLOCK: return "capslock";
case CODE_SWITCH_ALPHA_SYMBOL: return "symbol";
case CODE_OUTPUT_TEXT: return "text";
case CODE_DELETE: return "delete";
case CODE_SETTINGS: return "settings";
case CODE_SHORTCUT: return "shortcut";
case CODE_ACTION_NEXT: return "actionNext";
case CODE_ACTION_PREVIOUS: return "actionPrevious";
case CODE_LANGUAGE_SWITCH: return "languageSwitch";
case CODE_EMOJI: return "emoji";
case CODE_SHIFT_ENTER: return "shiftEnter";
case CODE_ALPHA_FROM_EMOJI: return "alpha";
case CODE_UNSPECIFIED: return "unspec";
case CODE_TAB: return "tab";
case CODE_ENTER: return "enter";
case CODE_SPACE: return "space";
default:
if (code < CODE_SPACE) return String.format("\\u%02X", code);
if (code < 0x100) return String.format("%c", code);
if (code < 0x10000) return String.format("\\u%04X", code);
return String.format("\\U%05X", code);
}
}
public static String printableCodes(final int[] codes) {
final StringBuilder sb = new StringBuilder();
boolean addDelimiter = false;
for (final int code : codes) {
if (code == NOT_A_CODE) break;
if (addDelimiter) sb.append(", ");
sb.append(printableCode(code));
addDelimiter = true;
}
return "[" + sb + "]";
}
public static final int MAX_INT_BIT_COUNT = 32;
/**
* Screen metrics (a.k.a. Device form factor) constants of
* {@link R.integer#config_screen_metrics}.
*/
public static final int SCREEN_METRICS_SMALL_PHONE = 0;
public static final int SCREEN_METRICS_LARGE_PHONE = 1;
public static final int SCREEN_METRICS_LARGE_TABLET = 2;
public static final int SCREEN_METRICS_SMALL_TABLET = 3;
/**
* Default capacity of gesture points container.
* This constant is used by {@link BatchInputArbiter} and etc. to preallocate regions that
* contain gesture event points.
*/
public static final int DEFAULT_GESTURE_POINTS_CAPACITY = 128;
private Constants() {
// This utility class is not publicly instantiable.
}
}