mirror of
https://github.com/Julow/Unexpected-Keyboard.git
synced 2024-11-29 10:43:15 +01:00
388 lines
12 KiB
Java
388 lines
12 KiB
Java
package juloo.keyboard2;
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import android.view.KeyCharacterMap;
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import android.view.KeyEvent;
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import java.util.HashMap;
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final class KeyValue
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{
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public static enum Event
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{
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CONFIG,
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SWITCH_TEXT,
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SWITCH_NUMERIC,
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SWITCH_EMOJI,
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SWITCH_BACK_EMOJI,
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CHANGE_METHOD,
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ACTION,
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SWITCH_SECOND,
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SWITCH_SECOND_BACK,
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SWITCH_GREEKMATH,
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CAPS_LOCK,
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}
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// Must be evaluated in the reverse order of their values.
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public static enum Modifier
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{
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SHIFT,
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CTRL,
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ALT,
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META,
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DOUBLE_AIGU,
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DOT_ABOVE,
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GRAVE,
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AIGU,
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CIRCONFLEXE,
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TILDE,
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CEDILLE,
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TREMA,
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SUPERSCRIPT,
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SUBSCRIPT,
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RING,
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CARON,
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MACRON,
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ORDINAL,
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ARROWS,
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BOX,
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OGONEK,
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SLASH,
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ARROW_RIGHT,
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BREVE,
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BAR,
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FN, // Must be placed last to be applied first
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}
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public static enum Editing
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{
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COPY,
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PASTE,
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CUT,
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SELECT_ALL,
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}
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public static enum Kind
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{
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Char, String, Keyevent, Event, Modifier, Editing
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}
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// Behavior flags.
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public static final int FLAG_LATCH = (1 << 20);
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public static final int FLAG_LOCK = (1 << 21);
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// Special keys are not repeated and don't clear latched modifiers.
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public static final int FLAG_SPECIAL = (1 << 22);
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public static final int FLAG_PRECISE_REPEAT = (1 << 23);
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// Rendering flags.
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public static final int FLAG_KEY_FONT = (1 << 24); // special font file
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public static final int FLAG_SMALLER_FONT = (1 << 25); // 25% smaller symbols
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public static final int FLAG_SECONDARY = (1 << 26); // dimmer
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// Used by [Pointers].
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public static final int FLAG_LOCKED = (1 << 28);
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public static final int FLAG_FAKE_PTR = (1 << 29);
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// Ranges for the different components
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private static final int FLAGS_BITS = (0b111111111 << 20); // 9 bits wide
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private static final int KIND_BITS = (0b111 << 29); // 3 bits wide
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private static final int VALUE_BITS = ~(FLAGS_BITS | KIND_BITS); // 20 bits wide
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static
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{
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check((FLAGS_BITS & KIND_BITS) == 0); // No overlap
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check((FLAGS_BITS | KIND_BITS | VALUE_BITS) == ~0); // No holes
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}
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private final String _symbol;
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/** This field encodes three things: Kind, flags and value. */
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private final int _code;
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public Kind getKind()
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{
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return Kind.values()[(_code & KIND_BITS) >>> 29];
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}
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public int getFlags()
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{
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return (_code & FLAGS_BITS);
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}
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public boolean hasFlags(int has)
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{
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return ((_code & has) == has);
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}
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/** The string to render on the keyboard.
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When [getKind() == Kind.String], also the string to send. */
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public String getString()
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{
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return _symbol;
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}
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/** Defined only when [getKind() == Kind.Char]. */
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public char getChar()
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{
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return (char)(_code & VALUE_BITS);
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}
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/** Defined only when [getKind() == Kind.Keyevent]. */
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public int getKeyevent()
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{
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return (_code & VALUE_BITS);
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}
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/** Defined only when [getKind() == Kind.Event]. */
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public Event getEvent()
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{
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return Event.values()[(_code & VALUE_BITS)];
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}
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/** Defined only when [getKind() == Kind.Modifier]. */
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public Modifier getModifier()
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{
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return Modifier.values()[(_code & VALUE_BITS)];
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}
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/** Defined only when [getKind() == Kind.Editing]. */
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public Editing getEditing()
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{
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return Editing.values()[(_code & VALUE_BITS)];
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}
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/* Update the char and the symbol. */
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public KeyValue withChar(char c)
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{
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return new KeyValue(String.valueOf(c), Kind.Char, c, getFlags());
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}
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public KeyValue withString(String s)
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{
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return new KeyValue(s, Kind.String, 0, getFlags());
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}
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public KeyValue withSymbol(String s)
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{
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return new KeyValue(s, (_code & KIND_BITS), (_code & VALUE_BITS), getFlags());
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}
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public KeyValue withKeyevent(int code)
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{
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return new KeyValue(_symbol, Kind.Keyevent, code, getFlags());
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}
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public KeyValue withFlags(int f)
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{
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return new KeyValue(_symbol, (_code & KIND_BITS), (_code & VALUE_BITS), f);
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}
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@Override
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public boolean equals(Object obj)
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{
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KeyValue snd = (KeyValue)obj;
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return _symbol.equals(snd._symbol) && _code == snd._code;
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}
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@Override
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public int hashCode()
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{
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return _symbol.hashCode() + _code;
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}
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private static HashMap<String, KeyValue> keys = new HashMap<String, KeyValue>();
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public KeyValue(String s, int kind, int value, int flags)
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{
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check((kind & ~KIND_BITS) == 0);
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check((flags & ~FLAGS_BITS) == 0);
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check((value & ~VALUE_BITS) == 0);
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_symbol = s;
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_code = kind | flags | value;
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}
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public KeyValue(String s, Kind k, int v, int f)
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{
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this(s, (k.ordinal() << 29), v, f);
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}
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public static KeyValue getKeyByName(String name)
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{
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KeyValue kv = keys.get(name);
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if (kv != null)
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return kv;
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if (name.length() == 1)
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return new KeyValue(name, Kind.Char, name.charAt(0), 0);
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else
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return new KeyValue(name, Kind.String, 0, 0);
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}
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private static void addKey(String name, String symbol, Kind kind, int code, int flags)
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{
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keys.put(name, new KeyValue(symbol, kind, code, flags));
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}
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private static void addCharKey(String name, String symbol, char c, int flags)
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{
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addKey(name, symbol, Kind.Char, c, flags);
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}
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private static void addModifierKey(String name, String symbol, Modifier m, int flags)
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{
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if (symbol.length() > 1)
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flags |= FLAG_SMALLER_FONT;
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addKey(name, symbol, Kind.Modifier, m.ordinal(),
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FLAG_LATCH | FLAG_SPECIAL | FLAG_SECONDARY | flags);
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}
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private static void addModifierKey(String name, int symbol, Modifier m, int flags)
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{
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addModifierKey(name, String.valueOf((char)symbol), m, flags | FLAG_KEY_FONT);
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}
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private static void addDiacritic(String name, int symbol, Modifier m)
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{
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addKey(name, String.valueOf((char)symbol), Kind.Modifier, m.ordinal(),
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FLAG_LATCH | FLAG_SPECIAL | FLAG_KEY_FONT);
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}
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private static void addEventKey(String name, String symbol, Event e, int flags)
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{
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addKey(name, symbol, Kind.Event, e.ordinal(), flags | FLAG_SPECIAL | FLAG_SECONDARY);
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}
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private static void addEventKey(String name, int symbol, Event e, int flags)
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{
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addEventKey(name, String.valueOf((char)symbol), e, flags | FLAG_KEY_FONT);
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}
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private static void addKeyeventKey(String name, String symbol, int code, int flags)
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{
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addKey(name, symbol, Kind.Keyevent, code, flags | FLAG_SECONDARY);
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}
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private static void addKeyeventKey(String name, int symbol, int code, int flags)
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{
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addKeyeventKey(name, String.valueOf((char)symbol), code, flags | FLAG_KEY_FONT);
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}
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private static void addEditingKey(String name, String symbol, Editing action)
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{
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addKey(name, symbol, Kind.Editing, action.ordinal(),
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FLAG_SPECIAL | FLAG_SECONDARY | FLAG_SMALLER_FONT);
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}
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// Within VALUE_BITS
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private static int placeholder_unique_id = 0;
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/** Use a unique id as the value because the symbol is shared between every
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placeholders (it is the empty string). */
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private static void addPlaceholderKey(String name)
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{
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addKey(name, "", Kind.String, placeholder_unique_id++, 0);
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}
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static
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{
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addModifierKey("shift", 0x0A, Modifier.SHIFT, 0);
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addModifierKey("ctrl", "Ctrl", Modifier.CTRL, 0);
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addModifierKey("alt", "Alt", Modifier.ALT, 0);
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addDiacritic("accent_aigu", 0x50, Modifier.AIGU);
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addDiacritic("accent_caron", 0x51, Modifier.CARON);
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addDiacritic("accent_cedille", 0x52, Modifier.CEDILLE);
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addDiacritic("accent_circonflexe", 0x53, Modifier.CIRCONFLEXE);
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addDiacritic("accent_grave", 0x54, Modifier.GRAVE);
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addDiacritic("accent_macron", 0x55, Modifier.MACRON);
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addDiacritic("accent_ring", 0x56, Modifier.RING);
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addDiacritic("accent_tilde", 0x57, Modifier.TILDE);
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addDiacritic("accent_trema", 0x58, Modifier.TREMA);
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addDiacritic("accent_ogonek", 0x59, Modifier.OGONEK);
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addDiacritic("accent_dot_above", 0x5A, Modifier.DOT_ABOVE);
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addDiacritic("accent_double_aigu", 0x5B, Modifier.DOUBLE_AIGU);
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addDiacritic("accent_slash", 0x5C, Modifier.SLASH);
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addDiacritic("accent_arrow_right", 0x5D, Modifier.ARROW_RIGHT);
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addDiacritic("accent_breve", 0x5E, Modifier.BREVE);
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addDiacritic("accent_bar", 0x5F, Modifier.BAR);
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addModifierKey("superscript", "Sup", Modifier.SUPERSCRIPT, 0);
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addModifierKey("subscript", "Sub", Modifier.SUBSCRIPT, 0);
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addModifierKey("ordinal", "Ord", Modifier.ORDINAL, 0);
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addModifierKey("arrows", "Arr", Modifier.ARROWS, 0);
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addModifierKey("box", "Box", Modifier.BOX, 0);
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addModifierKey("fn", "Fn", Modifier.FN, 0);
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addModifierKey("meta", "Meta", Modifier.META, 0);
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addEventKey("config", 0x04, Event.CONFIG, FLAG_SMALLER_FONT);
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addEventKey("switch_text", "ABC", Event.SWITCH_TEXT, FLAG_SMALLER_FONT);
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addEventKey("switch_numeric", "123+", Event.SWITCH_NUMERIC, FLAG_SMALLER_FONT);
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addEventKey("switch_emoji", 0x01, Event.SWITCH_EMOJI, FLAG_SMALLER_FONT);
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addEventKey("switch_back_emoji", "ABC", Event.SWITCH_BACK_EMOJI, 0);
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addEventKey("switch_second", 0x13, Event.SWITCH_SECOND, FLAG_SMALLER_FONT);
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addEventKey("switch_second_back", 0x14, Event.SWITCH_SECOND_BACK, FLAG_SMALLER_FONT);
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addEventKey("switch_greekmath", "πλ∇¬", Event.SWITCH_GREEKMATH, FLAG_SMALLER_FONT);
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addEventKey("change_method", 0x09, Event.CHANGE_METHOD, FLAG_SMALLER_FONT);
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addEventKey("action", "Action", Event.ACTION, FLAG_SMALLER_FONT); // Will always be replaced
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addEventKey("capslock", 0x12, Event.CAPS_LOCK, 0);
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addKeyeventKey("esc", "Esc", KeyEvent.KEYCODE_ESCAPE, FLAG_SMALLER_FONT);
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addKeyeventKey("enter", 0x0E, KeyEvent.KEYCODE_ENTER, 0);
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addKeyeventKey("up", 0x05, KeyEvent.KEYCODE_DPAD_UP, FLAG_PRECISE_REPEAT);
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addKeyeventKey("right", 0x06, KeyEvent.KEYCODE_DPAD_RIGHT, FLAG_PRECISE_REPEAT);
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addKeyeventKey("down", 0x07, KeyEvent.KEYCODE_DPAD_DOWN, FLAG_PRECISE_REPEAT);
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addKeyeventKey("left", 0x08, KeyEvent.KEYCODE_DPAD_LEFT, FLAG_PRECISE_REPEAT);
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addKeyeventKey("page_up", 0x02, KeyEvent.KEYCODE_PAGE_UP, 0);
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addKeyeventKey("page_down", 0x03, KeyEvent.KEYCODE_PAGE_DOWN, 0);
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addKeyeventKey("home", 0x0B, KeyEvent.KEYCODE_MOVE_HOME, 0);
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addKeyeventKey("end", 0x0C, KeyEvent.KEYCODE_MOVE_END, 0);
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addKeyeventKey("backspace", 0x11, KeyEvent.KEYCODE_DEL, 0);
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addKeyeventKey("delete", 0x10, KeyEvent.KEYCODE_FORWARD_DEL, 0);
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addKeyeventKey("insert", "Ins", KeyEvent.KEYCODE_INSERT, FLAG_SMALLER_FONT);
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addKeyeventKey("f1", "F1", KeyEvent.KEYCODE_F1, 0);
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addKeyeventKey("f2", "F2", KeyEvent.KEYCODE_F2, 0);
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addKeyeventKey("f3", "F3", KeyEvent.KEYCODE_F3, 0);
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addKeyeventKey("f4", "F4", KeyEvent.KEYCODE_F4, 0);
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addKeyeventKey("f5", "F5", KeyEvent.KEYCODE_F5, 0);
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addKeyeventKey("f6", "F6", KeyEvent.KEYCODE_F6, 0);
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addKeyeventKey("f7", "F7", KeyEvent.KEYCODE_F7, 0);
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addKeyeventKey("f8", "F8", KeyEvent.KEYCODE_F8, 0);
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addKeyeventKey("f9", "F9", KeyEvent.KEYCODE_F9, 0);
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addKeyeventKey("f10", "F10", KeyEvent.KEYCODE_F10, 0);
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addKeyeventKey("f11", "F11", KeyEvent.KEYCODE_F11, FLAG_SMALLER_FONT);
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addKeyeventKey("f12", "F12", KeyEvent.KEYCODE_F12, FLAG_SMALLER_FONT);
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addKeyeventKey("tab", 0x0F, KeyEvent.KEYCODE_TAB, FLAG_SMALLER_FONT);
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addCharKey("\\t", "\\t", '\t', 0); // Send the tab character
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addCharKey("space", "\r", ' ', FLAG_KEY_FONT | FLAG_SECONDARY);
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addCharKey("nbsp", "\u237d", '\u00a0', FLAG_SMALLER_FONT);
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addPlaceholderKey("removed");
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addPlaceholderKey("f11_placeholder");
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addPlaceholderKey("f12_placeholder");
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addEditingKey("copy", "copy", Editing.COPY);
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addEditingKey("paste", "paste", Editing.PASTE);
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addEditingKey("cut", "cut", Editing.CUT);
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addEditingKey("select_all", "s. all", Editing.SELECT_ALL);
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}
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static final HashMap<String, String> keys_descr = new HashMap<String, String>();
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/* Some keys have a description attached. Return [null] if otherwise. */
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public static String getKeyDescription(String name)
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{
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return keys_descr.get(name);
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}
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static void addKeyDescr(String name, String descr)
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{
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keys_descr.put(name, descr);
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}
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static {
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/* Keys description is shown in the settings. */
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addKeyDescr("capslock", "Caps lock");
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addKeyDescr("switch_greekmath", "Greek & math symbols");
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}
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// Substitute for [assert], which has no effect on Android.
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private static void check(boolean b)
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{
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if (!b)
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throw new RuntimeException("Assertion failure");
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}
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}
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