Separate handling of modifiers from KeyValue class

KeyValue defines an ADT and some of its values, it now contains public
final fields and no internal logic.
KeyModifier handles modifiers and accents and creates new instances of
KeyValue when needed.
This operation is now properly cached.
This commit is contained in:
Jules Aguillon 2021-04-18 23:28:49 +02:00
parent 67d3a99a92
commit 81803c406a
8 changed files with 148 additions and 131 deletions

View File

@ -90,7 +90,7 @@ public class EmojiGridView extends GridView
HashSet<String> set = new HashSet<String>();
for (Emoji emoji : _lastUsed.keySet())
set.add(String.valueOf(_lastUsed.get(emoji)) + "-" + emoji.getName());
set.add(String.valueOf(_lastUsed.get(emoji)) + "-" + emoji.name);
edit.putStringSet(LAST_USE_PREF, set);
edit.apply();
}
@ -130,7 +130,7 @@ public class EmojiGridView extends GridView
public void setEmoji(Emoji emoji)
{
setText(emoji.getSymbol(0));
setText(emoji.symbol);
}
}

View File

@ -15,7 +15,7 @@ public class EmojiGroupButtonsBar extends LinearLayout
for (int i = 0; i < Emoji.num_groups; i++)
{
Emoji first = Emoji.getEmojisByGroup(i)[0];
add_group(i, first.getSymbol(0));
add_group(i, first.symbol);
}
}

View File

@ -15,8 +15,8 @@ public class EmojiKeyButton extends Button
super(context, attrs);
setOnClickListener(this);
_key = KeyValue.getKeyByName(attrs.getAttributeValue(null, "key"));
setText(_key.getSymbol(0));
if ((_key.getFlags() & KeyValue.FLAG_KEY_FONT) != 0)
setText(_key.symbol);
if ((_key.flags & KeyValue.FLAG_KEY_FONT) != 0)
setTypeface(((Keyboard2)context).getSpecialKeyFont());
}

View File

@ -0,0 +1,70 @@
package juloo.keyboard2;
import android.util.SparseArray;
import android.view.KeyCharacterMap;
import java.util.HashMap;
class KeyModifier
{
/* Cache key is KeyValue's name */
private static HashMap<String, SparseArray<KeyValue>> _cache =
new HashMap<String, SparseArray<KeyValue>>();
/* Modify a key according to modifiers. */
public static KeyValue handleFlags(KeyValue k, int flags)
{
if (flags == 0) // No modifier
return k;
SparseArray<KeyValue> ks = cacheEntry(k);
KeyValue r = ks.get(flags);
if (r != null) // Found in cache
return r;
char c = handleChar(k.char_, flags);
if (c == k.char_) // Don't override the symbol if the char didn't change
r = k;
else
r = k.withCharAndSymbol(String.valueOf(c), c);
ks.put(flags, r);
return r;
}
private static char handleChar(char c, int flags)
{
if (c == KeyValue.CHAR_NONE)
return c;
if ((flags & KeyValue.FLAG_SHIFT) != 0) // Shift
c = Character.toUpperCase(c);
if ((flags & KeyValue.FLAGS_ACCENTS) != 0) // Accents, after shift is applied
c = handleAccentChar(c, flags);
return c;
}
private static char handleAccentChar(char c, int flags)
{
char accent;
switch ((flags & KeyValue.FLAGS_ACCENTS))
{
case KeyValue.FLAG_ACCENT1: accent = '\u02CB'; break;
case KeyValue.FLAG_ACCENT2: accent = '\u00B4'; break;
case KeyValue.FLAG_ACCENT3: accent = '\u02C6'; break;
case KeyValue.FLAG_ACCENT4: accent = '\u02DC'; break;
case KeyValue.FLAG_ACCENT5: accent = '\u00B8'; break;
case KeyValue.FLAG_ACCENT6: accent = '\u00A8'; break;
default: return c; // Can't happen
}
char r = (char)KeyCharacterMap.getDeadChar(accent, (int)c);
return (r == 0) ? c : r;
}
/* Lookup the cache entry for a key. Create it needed. */
private static SparseArray<KeyValue> cacheEntry(KeyValue k)
{
SparseArray<KeyValue> ks = _cache.get(k.name);
if (ks == null)
{
ks = new SparseArray<KeyValue>();
_cache.put(k.name, ks);
}
return ks;
}
}

View File

@ -36,79 +36,26 @@ class KeyValue
public static final int FLAGS_ACCENTS = FLAG_ACCENT1 | FLAG_ACCENT2 |
FLAG_ACCENT3 | FLAG_ACCENT4 | FLAG_ACCENT5 | FLAG_ACCENT6;
private final String _name;
private final String _symbol;
private final char _char;
private final int _eventCode;
private final int _flags;
public final String name;
public final String symbol;
public final char char_;
public final int eventCode;
public final int flags;
private int _cacheFlags;
private String _cacheSymbol;
public String getName()
public KeyValue withCharAndSymbol(String s, char c)
{
return (_name);
}
public String getSymbol(int flags)
{
if (_symbol == null)
{
if (flags != _cacheFlags)
{
_cacheSymbol = String.valueOf(getChar(flags));
_cacheFlags = flags;
}
return (_cacheSymbol);
}
return (_symbol);
}
public char getChar(int flags)
{
if (flags != 0)
{
char c = _char;
if ((flags & FLAG_SHIFT) != 0)
c = Character.toUpperCase(_char);
if ((flags & FLAG_ACCENT1) != 0)
c = (char)KeyCharacterMap.getDeadChar('\u02CB', (int)c);
if ((flags & FLAG_ACCENT2) != 0)
c = (char)KeyCharacterMap.getDeadChar('\u00B4', (int)c);
if ((flags & FLAG_ACCENT3) != 0)
c = (char)KeyCharacterMap.getDeadChar('\u02C6', (int)c);
if ((flags & FLAG_ACCENT4) != 0)
c = (char)KeyCharacterMap.getDeadChar('\u02DC', (int)c);
if ((flags & FLAG_ACCENT5) != 0)
c = (char)KeyCharacterMap.getDeadChar('\u00B8', (int)c);
if ((flags & FLAG_ACCENT6) != 0)
c = (char)KeyCharacterMap.getDeadChar('\u00A8', (int)c);
if (c != 0)
return (c);
}
return (_char);
}
public int getEventCode()
{
return (_eventCode);
}
public int getFlags()
{
return (_flags);
return new KeyValue(name, s, c, eventCode, flags);
}
private static HashMap<String, KeyValue> keys = new HashMap<String, KeyValue>();
protected KeyValue(String name, String symbol, char c, int eventCode, int flags)
protected KeyValue(String n, String s, char c, int e, int f)
{
_name = name;
_symbol = symbol;
_char = c;
_eventCode = eventCode;
_flags = flags;
_cacheFlags = -1;
name = n;
symbol = s;
char_ = c;
eventCode = e;
flags = f;
}
public static KeyValue getKeyByName(String name)
@ -215,6 +162,6 @@ class KeyValue
addKey("insert", "Ins", CHAR_NONE, KeyEvent.KEYCODE_INSERT, 0);
addKey("tab", "", '\t', KeyEvent.KEYCODE_TAB, 0);
addKey("space", null, ' ', KeyEvent.KEYCODE_SPACE, 0);
addKey("space", " ", ' ', KeyEvent.KEYCODE_SPACE, 0);
}
}

View File

@ -130,30 +130,28 @@ public class Keyboard2 extends InputMethodService
public void handleKeyUp(KeyValue key, int flags)
{
int eventCode = key.getEventCode();
char keyChar = key.getChar(flags);
if (getCurrentInputConnection() == null)
return ;
if (eventCode == KeyValue.EVENT_CONFIG)
key = KeyModifier.handleFlags(key, flags);
if (key.eventCode == KeyValue.EVENT_CONFIG)
{
Intent intent = new Intent(this, SettingsActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
else if (eventCode == KeyValue.EVENT_SWITCH_TEXT)
else if (key.eventCode == KeyValue.EVENT_SWITCH_TEXT)
_keyboardView.setKeyboard(getLayout(_currentTextLayout));
else if (eventCode == KeyValue.EVENT_SWITCH_NUMERIC)
else if (key.eventCode == KeyValue.EVENT_SWITCH_NUMERIC)
_keyboardView.setKeyboard(getLayout(R.xml.numeric));
else if (eventCode == KeyValue.EVENT_SWITCH_EMOJI)
else if (key.eventCode == KeyValue.EVENT_SWITCH_EMOJI)
{
if (_emojiPane == null)
_emojiPane = (ViewGroup)getLayoutInflater().inflate(R.layout.emoji_pane, null);
setInputView(_emojiPane);
}
else if (eventCode == KeyValue.EVENT_SWITCH_BACK_EMOJI)
else if (key.eventCode == KeyValue.EVENT_SWITCH_BACK_EMOJI)
setInputView(_keyboardView);
else if (eventCode == KeyValue.EVENT_CHANGE_METHOD)
else if (key.eventCode == KeyValue.EVENT_CHANGE_METHOD)
{
InputMethodManager imm = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
@ -165,15 +163,15 @@ public class Keyboard2 extends InputMethodService
// handleDelKey(1, 0);
// else if (eventCode == KeyEvent.KEYCODE_FORWARD_DEL)
// handleDelKey(0, 1);
else if (keyChar == KeyValue.CHAR_NONE)
else if (key.char_ == KeyValue.CHAR_NONE)
{
if (eventCode != KeyValue.EVENT_NONE)
if (key.eventCode != KeyValue.EVENT_NONE)
handleMetaKeyUp(key, flags);
else
getCurrentInputConnection().commitText(key.getSymbol(flags), 1);
getCurrentInputConnection().commitText(key.symbol, 1);
}
else
sendKeyChar(keyChar);
sendKeyChar(key.char_);
}
// private void handleDelKey(int before, int after)
@ -191,7 +189,7 @@ public class Keyboard2 extends InputMethodService
int metaState = 0;
KeyEvent event;
if (key.getEventCode() == KeyValue.EVENT_NONE)
if (key.eventCode == KeyValue.EVENT_NONE)
return ;
if ((flags & KeyValue.FLAG_CTRL) != 0)
metaState |= KeyEvent.META_CTRL_LEFT_ON | KeyEvent.META_CTRL_ON;
@ -199,7 +197,7 @@ public class Keyboard2 extends InputMethodService
metaState |= KeyEvent.META_ALT_LEFT_ON | KeyEvent.META_ALT_ON;
if ((flags & KeyValue.FLAG_SHIFT) != 0)
metaState |= KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON;
event = new KeyEvent(1, 1, KeyEvent.ACTION_DOWN, key.getEventCode(), 1, metaState);
event = new KeyEvent(1, 1, KeyEvent.ACTION_DOWN, key.eventCode, 1, metaState);
getCurrentInputConnection().sendKeyEvent(event);
getCurrentInputConnection().sendKeyEvent(KeyEvent.changeAction(event, KeyEvent.ACTION_UP));
}

View File

@ -172,11 +172,11 @@ public class Keyboard2View extends View
if (key.timeoutWhat != -1)
{
_handler.removeMessages(key.timeoutWhat);
if ((newValue.getFlags() & KeyValue.FLAG_NOREPEAT) == 0)
if ((newValue.flags & KeyValue.FLAG_NOREPEAT) == 0)
_handler.sendEmptyMessageDelayed(key.timeoutWhat, _config.longPressTimeout);
}
key.value = newValue;
key.flags = newValue.getFlags();
key.flags = newValue.flags;
updateFlags();
invalidate();
handleKeyDown(newValue);
@ -213,7 +213,7 @@ public class Keyboard2View extends View
else
{
int what = _currentWhat++;
if (key.key0 != null && (key.key0.getFlags() & KeyValue.FLAG_NOREPEAT) == 0)
if (key.key0 != null && (key.key0.flags & KeyValue.FLAG_NOREPEAT) == 0)
_handler.sendEmptyMessageDelayed(what, _config.longPressTimeout);
_downKeys.add(new KeyDown(pointerId, key, touchX, touchY, what));
}
@ -376,18 +376,20 @@ public class Keyboard2View extends View
private void drawLabel(Canvas canvas, KeyValue k, float x, float y, boolean locked)
{
if ((k.getFlags() & KeyValue.FLAG_KEY_FONT) != 0)
canvas.drawText(k.getSymbol(_flags), x, y, locked ? _specialKeyLabelLockedPaint : _specialKeyLabelPaint);
k = KeyModifier.handleFlags(k, _flags);
if ((k.flags & KeyValue.FLAG_KEY_FONT) != 0)
canvas.drawText(k.symbol, x, y, locked ? _specialKeyLabelLockedPaint : _specialKeyLabelPaint);
else
canvas.drawText(k.getSymbol(_flags), x, y, locked ? _keyLabelLockedPaint : _keyLabelPaint);
canvas.drawText(k.symbol, x, y, locked ? _keyLabelLockedPaint : _keyLabelPaint);
}
private void drawSubLabel(Canvas canvas, KeyValue k, float x, float y, boolean right)
{
if ((k.getFlags() & KeyValue.FLAG_KEY_FONT) != 0)
canvas.drawText(k.getSymbol(_flags), x, y, right ? _specialKeySubLabelRightPaint : _specialKeySubLabelPaint);
k = KeyModifier.handleFlags(k, _flags);
if ((k.flags & KeyValue.FLAG_KEY_FONT) != 0)
canvas.drawText(k.symbol, x, y, right ? _specialKeySubLabelRightPaint : _specialKeySubLabelPaint);
else
canvas.drawText(k.getSymbol(_flags), x, y, right ? _keySubLabelRightPaint : _keySubLabelPaint);
canvas.drawText(k.symbol, x, y, right ? _keySubLabelRightPaint : _keySubLabelPaint);
}
private static class KeyDown
@ -407,7 +409,7 @@ public class Keyboard2View extends View
this.key = key;
downX = x;
downY = y;
flags = (value == null) ? 0 : value.getFlags();
flags = (value == null) ? 0 : value.flags;
timeoutWhat = what;
}
}

View File

@ -168,7 +168,7 @@ class KeyboardData
public KeyValue map(KeyValue k)
{
return (k == null || (k.getFlags() & _flags) != 0) ? null : k;
return (k == null || (k.flags & _flags) != 0) ? null : k;
}
}
@ -180,7 +180,7 @@ class KeyboardData
public KeyValue map(KeyValue k)
{
return (k == null || k.getEventCode() == _eventCode) ? null : k;
return (k == null || k.eventCode == _eventCode) ? null : k;
}
}
}