Unexpected-Keyboard/srcs/juloo.keyboard2/KeyModifier.java
2023-07-09 16:12:13 +02:00

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package juloo.keyboard2;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import java.util.HashMap;
class KeyModifier
{
/** Cache key is KeyValue's name */
private static HashMap<KeyValue, HashMap<Pointers.Modifiers, KeyValue>> _cache =
new HashMap<KeyValue, HashMap<Pointers.Modifiers, KeyValue>>();
/** Modify a key according to modifiers. */
public static KeyValue modify(KeyValue k, Pointers.Modifiers mods)
{
if (k == null)
return null;
int n_mods = mods.size();
HashMap<Pointers.Modifiers, KeyValue> ks = cacheEntry(k);
KeyValue r = ks.get(mods);
if (r == null)
{
r = k;
/* Order: Fn, Shift, accents */
for (int i = 0; i < n_mods; i++)
r = modify(r, mods.get(i));
ks.put(mods, r);
}
/* Keys with an empty string are placeholder keys. */
return (r.getString().length() == 0) ? null : r;
}
public static KeyValue modify(KeyValue k, KeyValue.Modifier mod)
{
switch (mod)
{
case CTRL:
case ALT:
case META: return turn_into_keyevent(k);
case FN: return apply_fn(k);
case SHIFT: return apply_shift(k);
case GRAVE: return apply_map_or_dead_char(k, map_char_grave, '\u02CB');
case AIGU: return apply_map_or_dead_char(k, map_char_aigu, '\u00B4');
case CIRCONFLEXE: return apply_map_or_dead_char(k, map_char_circonflexe, '\u02C6');
case TILDE: return apply_map_or_dead_char(k, map_char_tilde, '\u02DC');
case CEDILLE: return apply_map_or_dead_char(k, map_char_cedille, '\u00B8');
case TREMA: return apply_map_or_dead_char(k, map_char_trema, '\u00A8');
case CARON: return apply_map_or_dead_char(k, map_char_caron, '\u02C7');
case RING: return apply_map_or_dead_char(k, map_char_ring, '\u02DA');
case MACRON: return apply_map_or_dead_char(k, map_char_macron, '\u00AF');
case OGONEK: return apply_map_or_dead_char(k, map_char_ogonek, '\u02DB');
case DOT_ABOVE: return apply_map_or_dead_char(k, map_char_dot_above, '\u02D9');
case BREVE: return apply_dead_char(k, '\u02D8');
case DOUBLE_AIGU: return apply_map_char(k, map_char_double_aigu);
case ORDINAL: return apply_map_char(k, map_char_ordinal);
case SUPERSCRIPT: return apply_map_char(k, map_char_superscript);
case SUBSCRIPT: return apply_map_char(k, map_char_subscript);
case ARROWS: return apply_map_char(k, map_char_arrows);
case BOX: return apply_map_char(k, map_char_box);
case SLASH: return apply_map_char(k, map_char_slash);
case BAR: return apply_map_char(k, map_char_bar);
case ARROW_RIGHT: return apply_combining(k, "\u20D7");
case DOT_BELOW: return apply_map_char(k, map_char_dot_below);
case HORN: return apply_map_char(k, map_char_horn);
case HOOK_ABOVE: return apply_map_char(k, map_char_hook_above);
default: return k;
}
}
/** Modify a key after a long press. */
public static KeyValue modify_long_press(KeyValue k)
{
switch (k.getKind())
{
case Event:
switch (k.getEvent())
{
case CHANGE_METHOD_PREV:
return KeyValue.getKeyByName("change_method");
}
break;
}
return k;
}
private static KeyValue apply_map_char(KeyValue k, Map_char map)
{
switch (k.getKind())
{
case Char:
char kc = k.getChar();
char c = map.apply(kc);
return (kc == c) ? k : k.withChar(c);
default: return k;
}
}
private static KeyValue apply_dead_char(KeyValue k, char dead_char)
{
switch (k.getKind())
{
case Char:
char kc = k.getChar();
char c = (char)KeyCharacterMap.getDeadChar(dead_char, kc);
return (c == 0 || kc == c) ? k : k.withChar(c);
default: return k;
}
}
/** Apply a [Map_char] or fallback to [apply_dead_char]. */
private static KeyValue apply_map_or_dead_char(KeyValue k, Map_char map, char dead_char)
{
switch (k.getKind())
{
case Char:
char kc = k.getChar();
char c = map.apply(kc);
if (kc == c)
return apply_dead_char(k, dead_char);
return k.withChar(c);
default: return k;
}
}
private static KeyValue apply_combining(KeyValue k, String combining)
{
switch (k.getKind())
{
case Char:
return k.withString(String.valueOf(k.getChar()) + combining);
default: return k;
}
}
private static KeyValue apply_shift(KeyValue k)
{
switch (k.getKind())
{
case Char:
char kc = k.getChar();
char c = map_char_shift(kc);
if (kc == c)
c = Character.toUpperCase(kc);
return (kc == c) ? k : k.withChar(c);
case String:
return k.withString(k.getString().toUpperCase());
default: return k;
}
}
private static KeyValue apply_fn(KeyValue k)
{
String name = null;
switch (k.getKind())
{
case Char: name = apply_fn_char(k.getChar()); break;
case Keyevent: name = apply_fn_keyevent(k.getKeyevent()); break;
case Event: name = apply_fn_event(k.getEvent()); break;
case Placeholder: name = apply_fn_placeholder(k.getPlaceholder()); break;
}
return (name == null) ? k : KeyValue.getKeyByName(name);
}
private static String apply_fn_keyevent(int code)
{
switch (code)
{
case KeyEvent.KEYCODE_DPAD_UP: return "page_up";
case KeyEvent.KEYCODE_DPAD_DOWN: return "page_down";
case KeyEvent.KEYCODE_DPAD_LEFT: return "home";
case KeyEvent.KEYCODE_DPAD_RIGHT: return "end";
case KeyEvent.KEYCODE_ESCAPE: return "insert";
case KeyEvent.KEYCODE_TAB: return "\\t";
default: return null;
}
}
private static String apply_fn_event(KeyValue.Event ev)
{
switch (ev)
{
case SWITCH_NUMERIC: return "switch_greekmath";
default: return null;
}
}
private static String apply_fn_placeholder(KeyValue.Placeholder p)
{
switch (p)
{
case F11: return "f11";
case F12: return "f12";
case SHINDOT: return "shindot";
case SINDOT: return "sindot";
case OLE: return "ole";
case METEG: return "meteg";
default: return null;
}
}
/** Return the name of modified key, or [null]. */
private static String apply_fn_char(char c)
{
switch (c)
{
case '1': return "f1";
case '2': return "f2";
case '3': return "f3";
case '4': return "f4";
case '5': return "f5";
case '6': return "f6";
case '7': return "f7";
case '8': return "f8";
case '9': return "f9";
case '0': return "f10";
case '<': return "«";
case '>': return "»";
case '{': return "";
case '}': return "";
case '[': return "";
case ']': return "";
case '(': return "";
case ')': return "";
case '\'': return "";
case '"': return "";
case '-': return "";
case '_': return "";
case '^': return "¬";
case '%': return "";
case '=': return "";
case 'u': return "µ";
case 'a': return "æ";
case 'o': return "œ";
case '*': return "°";
case '.': return "";
case ',': return "·";
case '!': return "¡";
case '?': return "¿";
case '|': return "¦";
case '§': return "";
case '×': return "";
// arrows
case '↖': return "";
case '↑': return "";
case '↗': return "";
case '←': return "";
case '→': return "";
case '↙': return "";
case '↓': return "";
case '↘': return "";
case '↔': return "";
case '↕': return "";
// Currency symbols
case 'e': return "";
case 'l': return "£";
case 'r': return "";
case 'y': return "¥";
case 'c': return "¢";
case 'p': return "";
case 'h': return "";
case '€': case '£': return "removed"; // Avoid showing these twice
// alternating greek letters
case 'π': return "ϖ";
case 'θ': return "ϑ";
case 'Θ': return "ϴ";
case 'ε': return "ϵ";
case 'β': return "ϐ";
case 'ρ': return "ϱ";
case 'σ': return "ς";
case 'γ': return "ɣ";
case 'φ': return "ϕ";
case 'υ': return "ϒ";
case 'κ': return "ϰ";
// alternating math characters
case '': return "";
case '∩': return "";
case '∃': return "";
case '∈': return "";
case '∫': return "";
case 'Π': return "";
case 'Σ': return "";
case '': return "";
case '∧': return "";
case '⊷': return "";
case '⊂': return "";
case '⊃': return "";
case '±': return "";
// hebrew niqqud
case 'ק': return "qamats"; // kamatz
case 'ר': return "hataf_qamats"; // reduced kamatz
case 'ו': return "holam";
case 'ם': return "rafe";
case 'פ': return "patah"; // patach
case 'ש': return "sheva";
case 'ד': return "dagesh"; // or mapiq
case 'ח': return "hiriq";
case 'ף': return "hataf_patah"; // reduced patach
case 'ז': return "qubuts"; // kubuts
case 'ס': return "segol";
case 'ב': return "hataf_segol"; // reduced segol
case 'צ': return "tsere";
// Devanagari symbols
case 'ए': return "";
case 'े': return "";
case 'ऐ': return "";
case 'ै': return "";
case 'ऋ': return "";
case 'ृ': return "";
case 'ळ': return "";
case 'र': return "";
case 'क': return "";
case 'ख': return "";
case 'ग': return "";
case 'घ': return "";
case 'ढ': return "";
case 'न': return "";
case 'ड': return "";
case 'ट': return "";
case 'ण': return "";
case 'फ': return "";
case 'ऌ': return "";
case 'ॢ': return "";
case 'औ': return "";
case 'ौ': return "";
case 'ओ': return "";
case 'ो': return "";
case 'च': return "";
case 'ज': return "";
case 'ब': return "ॿ";
case 'व': return "";
case 'य': return "";
case 'अ': return "";
case 'आ': return "";
case 'ा': return "";
case 'झ': return "";
case 'ई': return "";
case 'ी': return "";
case 'इ': return "";
case 'ि': return "";
case 'उ': return "";
case 'ऊ': return "";
case 'ु': return "";
case 'ष': return "क्ष";
case 'थ': return "त्र";
case 'द': return "द्र";
case 'प': return "प्र";
case 'श': return "श्र";
case 'छ': return "श्च";
case 'ँ': return "";
case '₹': return "";
case 'ॖ': return "";
case '॓': return "";
case '॰': return "";
case '।': return "";
case 'ं': return "";
case '़': return "";
case 'ऽ': return "";
// other
case ' ': return "nbsp";
default: return null;
}
}
private static KeyValue turn_into_keyevent(KeyValue k)
{
if (k.getKind() != KeyValue.Kind.Char)
return k;
int e;
switch (k.getChar())
{
case 'a': e = KeyEvent.KEYCODE_A; break;
case 'b': e = KeyEvent.KEYCODE_B; break;
case 'c': e = KeyEvent.KEYCODE_C; break;
case 'd': e = KeyEvent.KEYCODE_D; break;
case 'e': e = KeyEvent.KEYCODE_E; break;
case 'f': e = KeyEvent.KEYCODE_F; break;
case 'g': e = KeyEvent.KEYCODE_G; break;
case 'h': e = KeyEvent.KEYCODE_H; break;
case 'i': e = KeyEvent.KEYCODE_I; break;
case 'j': e = KeyEvent.KEYCODE_J; break;
case 'k': e = KeyEvent.KEYCODE_K; break;
case 'l': e = KeyEvent.KEYCODE_L; break;
case 'm': e = KeyEvent.KEYCODE_M; break;
case 'n': e = KeyEvent.KEYCODE_N; break;
case 'o': e = KeyEvent.KEYCODE_O; break;
case 'p': e = KeyEvent.KEYCODE_P; break;
case 'q': e = KeyEvent.KEYCODE_Q; break;
case 'r': e = KeyEvent.KEYCODE_R; break;
case 's': e = KeyEvent.KEYCODE_S; break;
case 't': e = KeyEvent.KEYCODE_T; break;
case 'u': e = KeyEvent.KEYCODE_U; break;
case 'v': e = KeyEvent.KEYCODE_V; break;
case 'w': e = KeyEvent.KEYCODE_W; break;
case 'x': e = KeyEvent.KEYCODE_X; break;
case 'y': e = KeyEvent.KEYCODE_Y; break;
case 'z': e = KeyEvent.KEYCODE_Z; break;
case '0': e = KeyEvent.KEYCODE_0; break;
case '1': e = KeyEvent.KEYCODE_1; break;
case '2': e = KeyEvent.KEYCODE_2; break;
case '3': e = KeyEvent.KEYCODE_3; break;
case '4': e = KeyEvent.KEYCODE_4; break;
case '5': e = KeyEvent.KEYCODE_5; break;
case '6': e = KeyEvent.KEYCODE_6; break;
case '7': e = KeyEvent.KEYCODE_7; break;
case '8': e = KeyEvent.KEYCODE_8; break;
case '9': e = KeyEvent.KEYCODE_9; break;
case '`': e = KeyEvent.KEYCODE_GRAVE; break;
case '-': e = KeyEvent.KEYCODE_MINUS; break;
case '=': e = KeyEvent.KEYCODE_EQUALS; break;
case '[': e = KeyEvent.KEYCODE_LEFT_BRACKET; break;
case ']': e = KeyEvent.KEYCODE_RIGHT_BRACKET; break;
case '\\': e = KeyEvent.KEYCODE_BACKSLASH; break;
case ';': e = KeyEvent.KEYCODE_SEMICOLON; break;
case '\'': e = KeyEvent.KEYCODE_APOSTROPHE; break;
case '/': e = KeyEvent.KEYCODE_SLASH; break;
case '@': e = KeyEvent.KEYCODE_AT; break;
case '+': e = KeyEvent.KEYCODE_PLUS; break;
case ',': e = KeyEvent.KEYCODE_COMMA; break;
case '.': e = KeyEvent.KEYCODE_PERIOD; break;
case '*': e = KeyEvent.KEYCODE_STAR; break;
case '#': e = KeyEvent.KEYCODE_POUND; break;
case '(': e = KeyEvent.KEYCODE_NUMPAD_LEFT_PAREN; break;
case ')': e = KeyEvent.KEYCODE_NUMPAD_RIGHT_PAREN; break;
case ' ': e = KeyEvent.KEYCODE_SPACE; break;
default: return k;
}
return k.withKeyevent(e);
}
/* Lookup the cache entry for a key. Create it needed. */
private static HashMap<Pointers.Modifiers, KeyValue> cacheEntry(KeyValue k)
{
HashMap<Pointers.Modifiers, KeyValue> ks = _cache.get(k);
if (ks == null)
{
ks = new HashMap<Pointers.Modifiers, KeyValue>();
_cache.put(k, ks);
}
return ks;
}
private static abstract class Map_char
{
public abstract char apply(char c);
}
private static char map_char_shift(char c)
{
switch (c)
{
case '↙': return '⇙';
case '↓': return '⇓';
case '↘': return '⇘';
case '←': return '⇐';
case '→': return '⇒';
case '↖': return '⇖';
case '↑': return '⇑';
case '↗': return '⇗';
case '└': return '╚';
case '┴': return '╩';
case '┘': return '╝';
case '├': return '╠';
case '┼': return '╬';
case '┤': return '╣';
case '┌': return '╔';
case '┬': return '╦';
case '┐': return '╗';
case '─': return '═';
case '│': return '║';
case 'ß': return 'ẞ';
/* In Turkish, upper case of 'iı' is 'İI' but Java's toUpperCase will
return 'II'. To make 'İ' accessible, make it the shift of 'ı'. This
has the inconvenient of swapping i and ı on the keyboard. */
case 'ı': return 'İ';
case '₹': return '₨';
default: return c;
}
}
private static final Map_char map_char_aigu =
new Map_char() {
public char apply(char c)
{
switch (c)
{
// Composite characters: 'j́'
case 'a': return 'á';
case 'e': return 'é';
case 'i': return 'í';
case 'l': return 'ĺ';
case 'o': return 'ó';
case 'r': return 'ŕ';
case 's': return 'ś';
case 'u': return 'ú';
case 'y': return 'ý';
default: return c;
}
}
};
private static final Map_char map_char_caron =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'c': return 'č';
case 'd': return 'ď';
case 'e': return 'ě';
case 'l': return 'ľ';
case 'n': return 'ň';
case 'r': return 'ř';
case 's': return 'š';
case 't': return 'ť';
case 'z': return 'ž';
default: return c;
}
}
};
private static final Map_char map_char_cedille =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'c': return 'ç';
case 's': return 'ş';
case 'g': return 'ģ';
default: return c;
}
}
};
private static final Map_char map_char_circonflexe =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'â';
case 'e': return 'ê';
case 'i': return 'î';
case 'o': return 'ô';
case 'u': return 'û';
default: return c;
}
}
};
private static final Map_char map_char_dot_above =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'ė': return 'ė';
default: return c;
}
}
};
private static final Map_char map_char_grave =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'à';
case 'e': return 'è';
case 'i': return 'ì';
case 'o': return 'ò';
case 'u': return 'ù';
default: return c;
}
}
};
private static final Map_char map_char_macron =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ā';
case 'e': return 'ē';
case 'i': return 'ī';
case 'u': return 'ū';
default: return c;
}
}
};
private static final Map_char map_char_ogonek =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ą';
case 'e': return 'ę';
case 'i': return 'į';
case 'k': return 'ķ';
case 'l': return 'ļ';
case 'n': return 'ņ';
case 'u': return 'ų';
default: return c;
}
}
};
private static final Map_char map_char_ring =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'å';
case 'u': return 'ů';
default: return c;
}
}
};
private static final Map_char map_char_tilde =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ã';
case 'o': return 'õ';
case 'n': return 'ñ';
default: return c;
}
}
};
private static final Map_char map_char_trema =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ä';
case 'e': return 'ë';
case 'i': return 'ï';
case 'o': return 'ö';
case 'u': return 'ü';
case 'y': return 'ÿ';
default: return c;
}
}
};
private static final Map_char map_char_double_aigu =
new Map_char() {
public char apply(char c)
{
switch (c)
{
// Composite characters: a̋ e̋ i̋ m̋ ӳ
case 'o': return 'ő';
case 'u': return 'ű';
case ' ': return '˝';
default: return c;
}
}
};
private static final Map_char map_char_ordinal =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ª';
case 'o': return 'º';
case '1': return 'ª';
case '2': return 'º';
case '3': return 'ⁿ';
case '4': return 'ᵈ';
case '5': return 'ᵉ';
case '6': return 'ʳ';
case '7': return 'ˢ';
case '8': return 'ᵗ';
case '9': return 'ʰ';
case '*': return '°';
default: return c;
}
}
};
private static final Map_char map_char_superscript =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case '1': return '¹';
case '2': return '²';
case '3': return '³';
case '4': return '⁴';
case '5': return '⁵';
case '6': return '⁶';
case '7': return '⁷';
case '8': return '⁸';
case '9': return '⁹';
case '0': return '⁰';
case 'i': return 'ⁱ';
case '+': return '⁺';
case '-': return '⁻';
case '=': return '⁼';
case '(': return '⁽';
case ')': return '⁾';
case 'n': return 'ⁿ';
default: return c;
}
}
};
private static final Map_char map_char_subscript =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case '1': return '₁';
case '2': return '₂';
case '3': return '₃';
case '4': return '₄';
case '5': return '₅';
case '6': return '₆';
case '7': return '₇';
case '8': return '₈';
case '9': return '₉';
case '0': return '₀';
case '+': return '₊';
case '-': return '₋';
case '=': return '₌';
case '(': return '₍';
case ')': return '₎';
case 'e': return 'ₑ';
case 'a': return 'ₐ';
case 'x': return 'ₓ';
case 'o': return 'ₒ';
default: return c;
}
}
};
private static final Map_char map_char_arrows =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case '1': return '↙';
case '2': return '↓';
case '3': return '↘';
case '4': return '←';
case '6': return '→';
case '7': return '↖';
case '8': return '↑';
case '9': return '↗';
default: return c;
}
}
};
private static final Map_char map_char_box =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case '1': return '└';
case '2': return '┴';
case '3': return '┘';
case '4': return '├';
case '5': return '┼';
case '6': return '┤';
case '7': return '┌';
case '8': return '┬';
case '9': return '┐';
case '0': return '─';
case '.': return '│';
default: return c;
}
}
};
private static final Map_char map_char_slash =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ⱥ';
case 'b': return '␢';
case 'c': return 'ȼ';
case 'e': return 'ɇ';
case 'g': return 'ꞡ';
case 'k': return 'ꝃ';
case 'l': return 'ł';
case 'n': return 'ꞥ';
case 'o': return 'ø';
case 'r': return 'ꞧ';
case 's': return 'ꞩ';
case 't': return 'ⱦ';
default: return c;
}
}
};
private static final Map_char map_char_bar =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'b': return 'ƀ';
case 'c': return 'ꞓ';
case 'd': return 'đ';
case 'g': return 'ǥ';
case 'i': return 'ɨ';
case 'j': return 'ɉ';
case 'k': return 'ꝁ';
case 'l': return 'ƚ';
case 'o': return 'ɵ';
case 'p': return 'ᵽ';
case 'q': return 'ꝗ';
case 'r': return 'ɍ';
case 't': return 'ŧ';
case 'u': return 'ʉ';
case 'y': return 'ɏ';
case 'z': return 'ƶ';
default: return c;
}
}
};
private static final Map_char map_char_dot_below =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ạ';
case 'ă': return 'ặ';
case 'â': return 'ậ';
case 'e': return 'ẹ';
case 'ê': return 'ệ';
case 'i': return 'ị';
case 'o': return 'ọ';
case 'ô': return 'ộ';
case 'ơ': return 'ợ';
case 'u': return 'ụ';
case 'ư': return 'ự';
case 'y': return 'ỵ';
default: return c;
}
}
};
private static final Map_char map_char_horn =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'o': return 'ơ';
case 'ó': return 'ớ';
case 'ò': return 'ờ';
case 'ỏ': return 'ở';
case 'õ': return 'ỡ';
case 'ọ': return 'ợ';
case 'u': return 'ư';
case 'ú': return 'ứ';
case 'ù': return 'ừ';
case 'ủ': return 'ử';
case 'ũ': return 'ữ';
case 'ụ': return 'ự';
default: return c;
}
}
};
private static final Map_char map_char_hook_above =
new Map_char() {
public char apply(char c)
{
switch (c)
{
case 'a': return 'ả';
case 'ă': return 'ẳ';
case 'â': return 'ẩ';
case 'e': return 'ẻ';
case 'ê': return 'ể';
case 'i': return 'ỉ';
case 'o': return 'ỏ';
case 'ô': return 'ổ';
case 'ơ': return 'ở';
case 'u': return 'ủ';
case 'ư': return 'ử';
case 'y': return 'ỷ';
default: return c;
}
}
};
}