mirror of
https://github.com/Julow/Unexpected-Keyboard.git
synced 2024-11-22 23:33:11 +01:00
468 lines
17 KiB
Java
468 lines
17 KiB
Java
package juloo.keyboard2;
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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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CHANGE_METHOD_PREV,
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ACTION,
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SWITCH_FORWARD,
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SWITCH_BACKWARD,
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SWITCH_GREEKMATH,
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CAPS_LOCK,
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SWITCH_VOICE_TYPING,
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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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DOT_BELOW,
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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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HORN,
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HOOK_ABOVE,
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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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PASTE_PLAIN,
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UNDO,
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REDO,
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// Android context menu actions
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REPLACE,
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SHARE,
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ASSIST,
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AUTOFILL,
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}
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public static enum Placeholder
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{
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REMOVED,
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F11,
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F12,
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SHINDOT,
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SINDOT,
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OLE,
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METEG
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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, Placeholder
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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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// Free flag: (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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public Placeholder getPlaceholder()
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{
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return Placeholder.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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return sameKey((KeyValue)obj);
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}
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/** Type-safe alternative to [equals]. */
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public boolean sameKey(KeyValue snd)
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{
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if (snd == null)
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return false;
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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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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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private static KeyValue charKey(String symbol, char c, int flags)
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{
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return new KeyValue(symbol, Kind.Char, c, flags);
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}
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private static KeyValue modifierKey(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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return new KeyValue(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 KeyValue modifierKey(int symbol, Modifier m, int flags)
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{
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return modifierKey(String.valueOf((char)symbol), m, flags | FLAG_KEY_FONT);
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}
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private static KeyValue diacritic(int symbol, Modifier m)
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{
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return new KeyValue(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 KeyValue eventKey(String symbol, Event e, int flags)
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{
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return new KeyValue(symbol, Kind.Event, e.ordinal(), flags | FLAG_SPECIAL | FLAG_SECONDARY);
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}
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private static KeyValue eventKey(int symbol, Event e, int flags)
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{
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return eventKey(String.valueOf((char)symbol), e, flags | FLAG_KEY_FONT);
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}
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private static KeyValue keyeventKey(String symbol, int code, int flags)
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{
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return new KeyValue(symbol, Kind.Keyevent, code, flags | FLAG_SECONDARY);
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}
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private static KeyValue keyeventKey(int symbol, int code, int flags)
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{
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return keyeventKey(String.valueOf((char)symbol), code, flags | FLAG_KEY_FONT);
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}
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private static KeyValue editingKey(String symbol, Editing action, int flags)
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{
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return new KeyValue(symbol, Kind.Editing, action.ordinal(),
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flags | FLAG_SPECIAL | FLAG_SECONDARY);
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}
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private static KeyValue editingKey(String symbol, Editing action)
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{
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return editingKey(symbol, action, FLAG_SMALLER_FONT);
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}
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private static KeyValue editingKey(int symbol, Editing action)
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{
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return editingKey(String.valueOf((char)symbol), action, FLAG_KEY_FONT);
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}
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/** A key that do nothing but has a unique ID. */
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private static KeyValue placeholderKey(Placeholder id)
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{
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return new KeyValue("", Kind.Placeholder, id.ordinal(), 0);
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}
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/** Make a key that types a string. */
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public static KeyValue makeStringKey(String str)
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{
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if (str.length() == 1)
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return new KeyValue(str, Kind.Char, str.charAt(0), 0);
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else
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return new KeyValue(str, Kind.String, 0, FLAG_SMALLER_FONT);
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}
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public static KeyValue getKeyByName(String name)
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{
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switch (name)
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{
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/* These symbols have special meaning when in `res/xml` and are escaped in
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standard layouts. The backslash is not stripped when parsed from the
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custom layout option. */
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case "\\?": return makeStringKey("?");
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case "\\#": return makeStringKey("#");
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case "\\@": return makeStringKey("@");
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case "\\\\": return makeStringKey("\\");
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case "shift": return modifierKey(0xE00A, Modifier.SHIFT, 0);
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case "ctrl": return modifierKey("Ctrl", Modifier.CTRL, 0);
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case "alt": return modifierKey("Alt", Modifier.ALT, 0);
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case "accent_aigu": return diacritic(0xE050, Modifier.AIGU);
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case "accent_caron": return diacritic(0xE051, Modifier.CARON);
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case "accent_cedille": return diacritic(0xE052, Modifier.CEDILLE);
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case "accent_circonflexe": return diacritic(0xE053, Modifier.CIRCONFLEXE);
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case "accent_grave": return diacritic(0xE054, Modifier.GRAVE);
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case "accent_macron": return diacritic(0xE055, Modifier.MACRON);
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case "accent_ring": return diacritic(0xE056, Modifier.RING);
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case "accent_tilde": return diacritic(0xE057, Modifier.TILDE);
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case "accent_trema": return diacritic(0xE058, Modifier.TREMA);
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case "accent_ogonek": return diacritic(0xE059, Modifier.OGONEK);
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case "accent_dot_above": return diacritic(0xE05A, Modifier.DOT_ABOVE);
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case "accent_double_aigu": return diacritic(0xE05B, Modifier.DOUBLE_AIGU);
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case "accent_slash": return diacritic(0xE05C, Modifier.SLASH);
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case "accent_arrow_right": return diacritic(0xE05D, Modifier.ARROW_RIGHT);
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case "accent_breve": return diacritic(0xE05E, Modifier.BREVE);
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case "accent_bar": return diacritic(0xE05F, Modifier.BAR);
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case "accent_dot_below": return diacritic(0xE060, Modifier.DOT_BELOW);
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case "accent_horn": return diacritic(0xE061, Modifier.HORN);
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case "accent_hook_above": return diacritic(0xE062, Modifier.HOOK_ABOVE);
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case "superscript": return modifierKey("Sup", Modifier.SUPERSCRIPT, 0);
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case "subscript": return modifierKey("Sub", Modifier.SUBSCRIPT, 0);
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case "ordinal": return modifierKey("Ord", Modifier.ORDINAL, 0);
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case "arrows": return modifierKey("Arr", Modifier.ARROWS, 0);
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case "box": return modifierKey("Box", Modifier.BOX, 0);
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case "fn": return modifierKey("Fn", Modifier.FN, 0);
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case "meta": return modifierKey("Meta", Modifier.META, 0);
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case "config": return eventKey(0xE004, Event.CONFIG, FLAG_SMALLER_FONT);
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case "switch_text": return eventKey("ABC", Event.SWITCH_TEXT, FLAG_SMALLER_FONT);
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case "switch_numeric": return eventKey("123+", Event.SWITCH_NUMERIC, FLAG_SMALLER_FONT);
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case "switch_emoji": return eventKey(0xE001, Event.SWITCH_EMOJI, FLAG_SMALLER_FONT);
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case "switch_back_emoji": return eventKey("ABC", Event.SWITCH_BACK_EMOJI, 0);
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case "switch_forward": return eventKey(0xE013, Event.SWITCH_FORWARD, FLAG_SMALLER_FONT);
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case "switch_backward": return eventKey(0xE014, Event.SWITCH_BACKWARD, FLAG_SMALLER_FONT);
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case "switch_greekmath": return eventKey("πλ∇¬", Event.SWITCH_GREEKMATH, FLAG_SMALLER_FONT);
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case "change_method": return eventKey(0xE009, Event.CHANGE_METHOD, FLAG_SMALLER_FONT);
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case "change_method_prev": return eventKey(0xE009, Event.CHANGE_METHOD_PREV, FLAG_SMALLER_FONT);
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case "action": return eventKey("Action", Event.ACTION, FLAG_SMALLER_FONT); // Will always be replaced
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case "capslock": return eventKey(0xE012, Event.CAPS_LOCK, 0);
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case "voice_typing": return eventKey(0xE015, Event.SWITCH_VOICE_TYPING, FLAG_SMALLER_FONT);
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case "esc": return keyeventKey("Esc", KeyEvent.KEYCODE_ESCAPE, FLAG_SMALLER_FONT);
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case "enter": return keyeventKey(0xE00E, KeyEvent.KEYCODE_ENTER, 0);
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case "up": return keyeventKey(0xE005, KeyEvent.KEYCODE_DPAD_UP, 0);
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case "right": return keyeventKey(0xE006, KeyEvent.KEYCODE_DPAD_RIGHT, 0);
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case "down": return keyeventKey(0xE007, KeyEvent.KEYCODE_DPAD_DOWN, 0);
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case "left": return keyeventKey(0xE008, KeyEvent.KEYCODE_DPAD_LEFT, 0);
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case "page_up": return keyeventKey(0xE002, KeyEvent.KEYCODE_PAGE_UP, 0);
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case "page_down": return keyeventKey(0xE003, KeyEvent.KEYCODE_PAGE_DOWN, 0);
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case "home": return keyeventKey(0xE00B, KeyEvent.KEYCODE_MOVE_HOME, 0);
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case "end": return keyeventKey(0xE00C, KeyEvent.KEYCODE_MOVE_END, 0);
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case "backspace": return keyeventKey(0xE011, KeyEvent.KEYCODE_DEL, 0);
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case "delete": return keyeventKey(0xE010, KeyEvent.KEYCODE_FORWARD_DEL, 0);
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case "insert": return keyeventKey("Ins", KeyEvent.KEYCODE_INSERT, FLAG_SMALLER_FONT);
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case "f1": return keyeventKey("F1", KeyEvent.KEYCODE_F1, 0);
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case "f2": return keyeventKey("F2", KeyEvent.KEYCODE_F2, 0);
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case "f3": return keyeventKey("F3", KeyEvent.KEYCODE_F3, 0);
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case "f4": return keyeventKey("F4", KeyEvent.KEYCODE_F4, 0);
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case "f5": return keyeventKey("F5", KeyEvent.KEYCODE_F5, 0);
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case "f6": return keyeventKey("F6", KeyEvent.KEYCODE_F6, 0);
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case "f7": return keyeventKey("F7", KeyEvent.KEYCODE_F7, 0);
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case "f8": return keyeventKey("F8", KeyEvent.KEYCODE_F8, 0);
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case "f9": return keyeventKey("F9", KeyEvent.KEYCODE_F9, 0);
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case "f10": return keyeventKey("F10", KeyEvent.KEYCODE_F10, 0);
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case "f11": return keyeventKey("F11", KeyEvent.KEYCODE_F11, FLAG_SMALLER_FONT);
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case "f12": return keyeventKey("F12", KeyEvent.KEYCODE_F12, FLAG_SMALLER_FONT);
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case "tab": return keyeventKey(0xE00F, KeyEvent.KEYCODE_TAB, FLAG_SMALLER_FONT);
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case "\\t": return charKey("\\t", '\t', 0); // Send the tab character
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case "space": return charKey("\r", ' ', FLAG_KEY_FONT | FLAG_SECONDARY);
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case "nbsp": return charKey("\u237d", '\u00a0', FLAG_SMALLER_FONT);
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/* bidi */
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case "lrm": return charKey("↱", '\u200e', 0); // Send left-to-right mark
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case "rlm": return charKey("↰", '\u200f', 0); // Send right-to-left mark
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case "b(": return charKey("(", ')', 0);
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case "b)": return charKey(")", '(', 0);
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case "b[": return charKey("[", ']', 0);
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case "b]": return charKey("]", '[', 0);
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case "b{": return charKey("{", '}', 0);
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case "b}": return charKey("}", '{', 0);
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case "blt": return charKey("<", '>', 0);
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case "bgt": return charKey(">", '<', 0);
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case "removed": return placeholderKey(Placeholder.REMOVED);
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case "f11_placeholder": return placeholderKey(Placeholder.F11);
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case "f12_placeholder": return placeholderKey(Placeholder.F12);
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/* hebrew niqqud */
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case "qamats": return charKey("\u05E7\u05B8", '\u05B8', 0); // kamatz
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case "patah": return charKey("\u05E4\u05B7", '\u05B7', 0); // patach
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case "sheva": return charKey("\u05E9\u05B0", '\u05B0', 0);
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case "dagesh": return charKey("\u05D3\u05BC", '\u05BC', 0); // or mapiq
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case "hiriq": return charKey("\u05D7\u05B4", '\u05B4', 0);
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case "segol": return charKey("\u05E1\u05B6", '\u05B6', 0);
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case "tsere": return charKey("\u05E6\u05B5", '\u05B5', 0);
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case "holam": return charKey("\u05D5\u05B9", '\u05B9', 0);
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case "qubuts": return charKey("\u05E7\u05BB", '\u05BB', 0); // kubuts
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case "hataf_patah": return charKey("\u05D7\u05B2\u05E4\u05B7", '\u05B2', 0); // reduced patach
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case "hataf_qamats": return charKey("\u05D7\u05B3\u05E7\u05B8", '\u05B3', 0); // reduced kamatz
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case "hataf_segol": return charKey("\u05D7\u05B1\u05E1\u05B6", '\u05B1', 0); // reduced segol
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case "shindot": return charKey("\u05E9\u05C1", '\u05C1', 0);
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case "shindot_placeholder": return placeholderKey(Placeholder.SHINDOT);
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case "sindot": return charKey("\u05E9\u05C2", '\u05C2', 0);
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case "sindot_placeholder": return placeholderKey(Placeholder.SINDOT);
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/* hebrew punctuation */
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case "geresh": return charKey("\u05F3", '\u05F3', 0);
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case "gershayim": return charKey("\u05F4", '\u05F4', 0);
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case "maqaf": return charKey("\u05BE", '\u05BE', 0);
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/* hebrew biblical */
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case "rafe": return charKey("\u05E4\u05BF", '\u05BF', 0);
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case "ole": return charKey("\u05E2\u05AB", '\u05AB', 0);
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case "ole_placeholder": return placeholderKey(Placeholder.OLE);
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case "meteg": return charKey("\u05DE\u05BD", '\u05BD', 0); // or siluq or sof-pasuq
|
|
case "meteg_placeholder": return placeholderKey(Placeholder.METEG);
|
|
/* intending/preventing ligature - supported by many scripts*/
|
|
case "zwj": return charKey("zwj", '\u200D', 0); // zero-width joiner (provides ligature)
|
|
case "zwnj": return charKey("zwnj", '\u200C', 0); // zero-width non joiner (prevents unintended ligature)
|
|
|
|
case "copy": return editingKey(0xE030, Editing.COPY);
|
|
case "paste": return editingKey(0xE032, Editing.PASTE);
|
|
case "cut": return editingKey(0xE031, Editing.CUT);
|
|
case "selectAll": return editingKey(0xE033, Editing.SELECT_ALL);
|
|
case "shareText": return editingKey(0xE034, Editing.SHARE);
|
|
case "pasteAsPlainText": return editingKey(0xE035, Editing.PASTE_PLAIN);
|
|
case "undo": return editingKey(0xE036, Editing.UNDO);
|
|
case "redo": return editingKey(0xE037, Editing.REDO);
|
|
case "replaceText": return editingKey("repl", Editing.REPLACE);
|
|
case "textAssist": return editingKey(0xE038, Editing.ASSIST);
|
|
case "autofill": return editingKey("auto", Editing.AUTOFILL);
|
|
default: return makeStringKey(name);
|
|
}
|
|
}
|
|
|
|
// Substitute for [assert], which has no effect on Android.
|
|
private static void check(boolean b)
|
|
{
|
|
if (!b)
|
|
throw new RuntimeException("Assertion failure");
|
|
}
|
|
}
|