mirror of
https://github.com/Julow/Unexpected-Keyboard.git
synced 2024-12-29 09:28:53 +01:00
317 lines
9.8 KiB
Java
317 lines
9.8 KiB
Java
package juloo.keyboard2;
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import android.util.SparseArray;
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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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class KeyModifier
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{
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/** Cache key is KeyValue's name */
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private static HashMap<String, SparseArray<KeyValue>> _cache =
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new HashMap<String, SparseArray<KeyValue>>();
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/** Represents a removed key, because a cache entry can't be [null]. */
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private static final KeyValue removed_key = KeyValue.getKeyByName("removed");
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/** Modify a key according to modifiers. */
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public static KeyValue handleFlags(KeyValue k, int flags)
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{
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if (k == null)
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return null;
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SparseArray<KeyValue> ks = cacheEntry(k);
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KeyValue r = ks.get(flags);
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if (r == null) // Cold cache
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{
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r = k;
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r = handleFn(r, flags);
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r = handleShift(r, flags);
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r = handleAccents(r, flags);
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ks.put(flags, r);
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}
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return (r == removed_key) ? null : r;
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}
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private static KeyValue handleAccents(KeyValue k, int flags)
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{
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if (k.char_ == KeyValue.CHAR_NONE || (flags & KeyValue.FLAGS_ACCENTS) == 0)
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return k;
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char c = handleAccentChar(k.char_, flags);
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if (c == 0 || c == k.char_)
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return k;
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return k.withCharAndSymbol(c);
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}
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private static KeyValue handleShift(KeyValue k, int flags)
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{
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if ((flags & KeyValue.FLAG_SHIFT) == 0)
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return k;
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char c = k.char_;
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if (k.char_ != KeyValue.CHAR_NONE)
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c = Character.toUpperCase(c);
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if (c == k.char_) // Used to have more rules if toUpperCase() did nothing
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return k;
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return k.withCharAndSymbol(c);
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}
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private static char handleAccentChar(char c, int flags)
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{
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switch ((flags & KeyValue.FLAGS_ACCENTS))
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{
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case KeyValue.FLAG_ACCENT1:
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return (char)KeyCharacterMap.getDeadChar('\u02CB', c);
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case KeyValue.FLAG_ACCENT2:
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return (char)KeyCharacterMap.getDeadChar('\u00B4', c);
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case KeyValue.FLAG_ACCENT3:
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return (char)KeyCharacterMap.getDeadChar('\u02C6', c);
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case KeyValue.FLAG_ACCENT4:
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return (char)KeyCharacterMap.getDeadChar('\u02DC', c);
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case KeyValue.FLAG_ACCENT5:
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return (char)KeyCharacterMap.getDeadChar('\u00B8', c);
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case KeyValue.FLAG_ACCENT6:
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return (char)KeyCharacterMap.getDeadChar('\u00A8', c);
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case KeyValue.FLAG_ACCENT_CARON:
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return (char)KeyCharacterMap.getDeadChar('\u02C7', c);
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case KeyValue.FLAG_ACCENT_RING:
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return (char)KeyCharacterMap.getDeadChar('\u02DA', c);
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case KeyValue.FLAG_ACCENT_MACRON:
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return (char)KeyCharacterMap.getDeadChar('\u00AF', c);
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case KeyValue.FLAG_ACCENT_OGONEK:
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return (char)KeyCharacterMap.getDeadChar('\u02DB', c);
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case KeyValue.FLAG_ACCENT_DOT_ABOVE:
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return (char)KeyCharacterMap.getDeadChar('\u02D9', c);
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case KeyValue.FLAG_ACCENT_DOUBLE_AIGU:
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switch (c)
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{
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// Composite characters: a̋ e̋ i̋ m̋ ӳ
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case 'o': return 'ő';
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case 'u': return 'ű';
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case ' ': return '˝';
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default: return c;
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}
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case KeyValue.FLAG_ACCENT_ORDINAL:
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switch (c)
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{
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case 'a': return 'ª';
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case 'o': return 'º';
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case '1': return 'ª';
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case '2': return 'º';
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case '3': return 'ⁿ';
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case '4': return 'ᵈ';
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case '5': return 'ᵉ';
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case '6': return 'ʳ';
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case '7': return 'ˢ';
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case '8': return 'ᵗ';
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case '9': return 'ʰ';
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case '*': return '°';
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default: return c;
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}
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case KeyValue.FLAG_ACCENT_SUPERSCRIPT:
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switch (c)
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{
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case '1': return '¹';
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case '2': return '²';
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case '3': return '³';
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case '4': return '⁴';
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case '5': return '⁵';
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case '6': return '⁶';
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case '7': return '⁷';
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case '8': return '⁸';
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case '9': return '⁹';
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case '0': return '⁰';
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case 'i': return 'ⁱ';
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case '+': return '⁺';
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case '-': return '⁻';
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case '=': return '⁼';
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case '(': return '⁽';
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case ')': return '⁾';
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case 'n': return 'ⁿ';
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default: return c;
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}
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case KeyValue.FLAG_ACCENT_SUBSCRIPT:
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switch (c)
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{
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case '1': return '₁';
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case '2': return '₂';
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case '3': return '₃';
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case '4': return '₄';
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case '5': return '₅';
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case '6': return '₆';
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case '7': return '₇';
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case '8': return '₈';
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case '9': return '₉';
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case '0': return '₀';
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case '+': return '₊';
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case '-': return '₋';
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case '=': return '₌';
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case '(': return '₍';
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case ')': return '₎';
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case 'e': return 'ₑ';
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case 'a': return 'ₐ';
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case 'x': return 'ₓ';
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case 'o': return 'ₒ';
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default: return c;
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}
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case KeyValue.FLAG_ACCENT_ARROWS:
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if ((flags & KeyValue.FLAG_SHIFT) == 0)
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{
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switch (c)
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{
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case '1': return '↙';
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case '2': return '↓';
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case '3': return '↘';
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case '4': return '←';
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case '6': return '→';
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case '7': return '↖';
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case '8': return '↑';
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case '9': return '↗';
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default: return c;
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}
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}
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else
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{
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switch (c)
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{
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case '1': return '⇙';
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case '2': return '⇓';
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case '3': return '⇘';
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case '4': return '⇐';
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case '6': return '⇒';
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case '7': return '⇖';
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case '8': return '⇑';
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case '9': return '⇗';
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default: return c;
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}
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}
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case KeyValue.FLAG_ACCENT_BOX:
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if ((flags & KeyValue.FLAG_SHIFT) == 0)
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{
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switch (c)
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{
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case '1': return '└';
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case '2': return '┴';
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case '3': return '┘';
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case '4': return '├';
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case '5': return '┼';
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case '6': return '┤';
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case '7': return '┌';
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case '8': return '┬';
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case '9': return '┐';
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case '0': return '─';
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case '.': return '│';
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default: return c;
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}
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}
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else
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{
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switch (c)
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{
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case '1': return '╚';
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case '2': return '╩';
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case '3': return '╝';
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case '4': return '╠';
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case '5': return '╬';
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case '6': return '╣';
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case '7': return '╔';
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case '8': return '╦';
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case '9': return '╗';
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case '0': return '═';
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case '.': return '║';
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default: return c;
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}
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}
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default: return c; // Can't happen
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}
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}
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private static KeyValue handleFn(KeyValue k, int flags)
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{
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if ((flags & KeyValue.FLAG_FN) == 0)
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{
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switch (k.name)
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{
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// Remove some keys when Fn is *not* activated
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case "f11_placeholder":
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case "f12_placeholder": return removed_key;
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default: return k;
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}
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}
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String name;
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switch (k.name)
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{
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case "1": name = "f1"; break;
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case "2": name = "f2"; break;
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case "3": name = "f3"; break;
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case "4": name = "f4"; break;
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case "5": name = "f5"; break;
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case "6": name = "f6"; break;
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case "7": name = "f7"; break;
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case "8": name = "f8"; break;
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case "9": name = "f9"; break;
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case "0": name = "f10"; break;
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case "f11_placeholder": name = "f11"; break;
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case "f12_placeholder": name = "f12"; break;
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case "up": name = "page_up"; break;
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case "down": name = "page_down"; break;
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case "left": name = "home"; break;
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case "right": name = "end"; break;
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case "<": name = "«"; break;
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case ">": name = "»"; break;
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case "{": name = "‹"; break;
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case "}": name = "›"; break;
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case "[": name = "‘"; break;
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case "]": name = "’"; break;
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case "(": name = "“"; break;
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case ")": name = "”"; break;
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case "'": name = "‚"; break;
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case "\"": name = "„"; break;
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case "-": name = "–"; break;
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case "_": name = "—"; break;
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case "^": name = "¬"; break;
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case "%": name = "‰"; break;
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case "=": name = "≈"; break;
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case "u": name = "µ"; break;
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case "a": name = "æ"; break;
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case "o": name = "œ"; break;
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case "esc": name = "insert"; break;
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case "*": name = "°"; break;
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case ".": name = "…"; break;
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case ",": name = "·"; break;
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case "!": name = "¡"; break;
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case "?": name = "¿"; break;
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case "tab": name = "\\t"; break;
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case "space": name = "nbsp"; break;
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case "↖": name = "⇖"; break;
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case "↑": name = "⇑"; break;
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case "↗": name = "⇗"; break;
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case "←": name = "⇐"; break;
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case "→": name = "⇒"; break;
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case "↙": name = "⇙"; break;
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case "↓": name = "⇓"; break;
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case "↘": name = "⇘"; break;
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// Currency symbols
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case "e": name = "€"; break;
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case "l": name = "£"; break;
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case "r": name = "₹"; break;
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case "y": name = "¥"; break;
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case "c": name = "¢"; break;
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case "p": name = "₱"; break;
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case "€": case "£": return removed_key; // Avoid showing these twice
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default: return k;
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}
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return KeyValue.getKeyByName(name);
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}
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/* Lookup the cache entry for a key. Create it needed. */
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private static SparseArray<KeyValue> cacheEntry(KeyValue k)
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{
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SparseArray<KeyValue> ks = _cache.get(k.name);
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if (ks == null)
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{
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ks = new SparseArray<KeyValue>();
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_cache.put(k.name, ks);
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}
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return ks;
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}
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}
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