Unexpected-Keyboard/srcs/juloo.keyboard2/Config.java
Jules Aguillon 4127aa6f03 Stop using flags for modifiers
There was no free bits left to add new modifiers. Instead of increasing
the width of the 'flags' field, refactor the way modifiers are
represented and used.

Modifers are now represented as independent values and stored in the
'code' field. A flag is added to distinguish between modifiers and keys
with a key event.

The most notable change is that modifiers can no longer be or-ed into a
single value but have to be represented as an array.
2022-06-05 01:43:58 +02:00

282 lines
11 KiB
Java

package juloo.keyboard2;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.Configuration;
import android.content.SharedPreferences;
import android.os.Build;
import android.preference.PreferenceManager;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.KeyEvent;
import java.util.Iterator;
import java.util.Set;
import java.util.HashSet;
final class Config
{
// From resources
public final float marginTop;
public final float keyPadding;
public final float labelTextSize;
public final float sublabelTextSize;
// From preferences
public int layout; // Or '-1' for the system defaults
public int programming_layout; // Or '-1' for none
public float swipe_dist_px;
public boolean vibrateEnabled;
public long vibrateDuration;
public long longPressTimeout;
public long longPressInterval;
public float marginBottom;
public float keyHeight;
public float horizontalMargin;
public float keyVerticalInterval;
public float keyHorizontalInterval;
public boolean preciseRepeat;
public Set<Integer> lockable_modifiers = new HashSet<Integer>();
public float characterSize; // Ratio
public int accents; // Values are R.values.pref_accents_v_*
public int theme; // Values are R.style.*
// Dynamically set
public boolean shouldOfferSwitchingToNextInputMethod;
public boolean shouldOfferSwitchingToProgramming;
public String actionLabel; // Might be 'null'
public int actionId; // Meaningful only when 'actionLabel' isn't 'null'
public boolean swapEnterActionKey; // Swap the "enter" and "action" keys
public Set<String> extra_keys; // 'null' means all the keys
public final IKeyEventHandler handler;
private Config(Context context, IKeyEventHandler h)
{
Resources res = context.getResources();
// static values
marginTop = res.getDimension(R.dimen.margin_top);
keyPadding = res.getDimension(R.dimen.key_padding);
labelTextSize = Float.valueOf(res.getString(R.integer.label_text_size));
sublabelTextSize = Float.valueOf(res.getString(R.integer.sublabel_text_size));
// default values
layout = -1;
programming_layout = -1;
vibrateEnabled = true;
vibrateDuration = 20;
longPressTimeout = 600;
longPressInterval = 65;
marginBottom = res.getDimension(R.dimen.margin_bottom);
keyHeight = res.getDimension(R.dimen.key_height);
horizontalMargin = res.getDimension(R.dimen.horizontal_margin);
keyVerticalInterval = res.getDimension(R.dimen.key_vertical_interval);
keyHorizontalInterval = res.getDimension(R.dimen.key_horizontal_interval);
preciseRepeat = true;
characterSize = 1.f;
accents = 1;
// from prefs
refresh(context);
// initialized later
shouldOfferSwitchingToNextInputMethod = false;
shouldOfferSwitchingToProgramming = false;
actionLabel = null;
actionId = 0;
swapEnterActionKey = false;
extra_keys = null;
handler = h;
}
/*
** Reload prefs
*/
public void refresh(Context context)
{
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
Resources res = context.getResources();
DisplayMetrics dm = res.getDisplayMetrics();
// The height of the keyboard is relative to the height of the screen. This
// is not the actual size of the keyboard, which will be bigger if the
// layout has a fifth row.
int keyboardHeightPercent;
if (res.getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) // Landscape mode
{
keyboardHeightPercent = 55;
}
else
{
keyboardHeightPercent = prefs.getInt("keyboard_height", 35);
}
String layout_s = prefs.getString("layout", "system");
layout = layout_s.equals("system") ? -1 : layoutId_of_string(layout_s);
String prog_layout_s = prefs.getString("programming_layout", "none");
programming_layout = prog_layout_s.equals("none") ? -1 : layoutId_of_string(prog_layout_s);
// The swipe distance is defined relatively to the "exact physical pixels
// per inch of the screen", which isn't affected by the scaling settings.
// Take the mean of both dimensions as an approximation of the diagonal.
float physical_scaling = (dm.widthPixels + dm.heightPixels) / (dm.xdpi + dm.ydpi);
swipe_dist_px = Float.valueOf(prefs.getString("swipe_dist", "15")) * physical_scaling;;
vibrateEnabled = prefs.getBoolean("vibrate_enabled", vibrateEnabled);
vibrateDuration = prefs.getInt("vibrate_duration", (int)vibrateDuration);
longPressTimeout = prefs.getInt("longpress_timeout", (int)longPressTimeout);
longPressInterval = prefs.getInt("longpress_interval", (int)longPressInterval);
marginBottom = getDipPref(dm, prefs, "margin_bottom", marginBottom);
keyVerticalInterval = getDipPref(dm, prefs, "key_vertical_space", keyVerticalInterval);
keyHorizontalInterval = getDipPref(dm, prefs, "key_horizontal_space", keyHorizontalInterval);
// Do not substract keyVerticalInterval from keyHeight because this is done
// during rendered.
keyHeight = dm.heightPixels * keyboardHeightPercent / 100 / 4;
horizontalMargin = getDipPref(dm, prefs, "horizontal_margin", horizontalMargin) + res.getDimension(R.dimen.extra_horizontal_margin);
preciseRepeat = prefs.getBoolean("precise_repeat", preciseRepeat);
lockable_modifiers.clear();
if (prefs.getBoolean("lockable_shift", true)) lockable_modifiers.add(KeyValue.MOD_SHIFT);
if (prefs.getBoolean("lockable_ctrl", false)) lockable_modifiers.add(KeyValue.MOD_CTRL);
if (prefs.getBoolean("lockable_alt", false)) lockable_modifiers.add(KeyValue.MOD_ALT);
if (prefs.getBoolean("lockable_fn", false)) lockable_modifiers.add(KeyValue.MOD_FN);
if (prefs.getBoolean("lockable_meta", false)) lockable_modifiers.add(KeyValue.MOD_META);
if (prefs.getBoolean("lockable_sup", false)) lockable_modifiers.add(KeyValue.MOD_SUPERSCRIPT);
if (prefs.getBoolean("lockable_sub", false)) lockable_modifiers.add(KeyValue.MOD_SUBSCRIPT);
if (prefs.getBoolean("lockable_box", false)) lockable_modifiers.add(KeyValue.MOD_BOX);
characterSize = prefs.getFloat("character_size", characterSize);
accents = Integer.valueOf(prefs.getString("accents", "1"));
theme = getThemeId(res, prefs.getString("theme", ""));
}
/** Update the layout according to the configuration.
* - Remove the switching key if it isn't needed
* - Remove "localized" keys from other locales (not in 'extra_keys')
* - Replace the action key to show the right label
* - Swap the enter and action keys
*/
public KeyboardData modify_layout(KeyboardData original_kw)
{
// Update the name to avoid caching in KeyModifier
final KeyValue action_key = (actionLabel == null) ? null :
KeyValue.getKeyByName("action").withNameAndSymbol(actionLabel, actionLabel);
// Extra keys are removed from the set as they are encountered during the
// first iteration then automatically added.
final Set<String> extra_keys = new HashSet<String>(this.extra_keys);
KeyboardData kw = original_kw.mapKeys(new KeyboardData.MapKeyValues() {
public KeyValue apply(KeyValue key)
{
if (key == null)
return null;
boolean is_extra_key = extra_keys.contains(key.name);
if (is_extra_key)
extra_keys.remove(key.name);
switch (key.code)
{
case KeyValue.EVENT_CHANGE_METHOD:
return shouldOfferSwitchingToNextInputMethod ? key : null;
case KeyEvent.KEYCODE_ENTER:
return (swapEnterActionKey && action_key != null) ? action_key : key;
case KeyValue.EVENT_ACTION:
return (swapEnterActionKey && action_key != null) ?
KeyValue.getKeyByName("enter") : action_key;
case KeyValue.EVENT_SWITCH_PROGRAMMING:
return shouldOfferSwitchingToProgramming ? key : null;
default:
if (key.flags != 0)
{
if ((key.flags & KeyValue.FLAG_LOCALIZED) != 0 && !is_extra_key)
return null;
if ((key.flags & KeyValue.FLAG_MODIFIER) != 0
&& lockable_modifiers.contains(key.code))
return key.withFlags(key.flags | KeyValue.FLAG_LOCK);
}
return key;
}
}
});
if (extra_keys.size() > 0)
{
final Iterator<String> extra_keys_it = extra_keys.iterator();
kw = kw.addExtraKeys(
new Iterator<KeyValue>()
{
public boolean hasNext() { return extra_keys_it.hasNext(); }
public KeyValue next() { return KeyValue.getKeyByName(extra_keys_it.next()); }
});
}
return kw;
}
private float getDipPref(DisplayMetrics dm, SharedPreferences prefs, String pref_name, float def)
{
float value;
try { value = prefs.getInt(pref_name, -1); }
catch (Exception e) { value = prefs.getFloat(pref_name, -1f); }
if (value < 0f)
return (def);
return (TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, value, dm));
}
private int getThemeId(Resources res, String theme_name)
{
switch (theme_name)
{
case "light": return R.style.Light;
case "black": return R.style.Black;
case "dark": return R.style.Dark;
default:
case "system":
if (Build.VERSION.SDK_INT >= 8)
{
int night_mode = res.getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
if ((night_mode & Configuration.UI_MODE_NIGHT_NO) != 0)
return R.style.Light;
}
return R.style.Dark;
}
}
public static int layoutId_of_string(String name)
{
switch (name)
{
case "azerty": return R.xml.azerty;
case "bgph1": return R.xml.local_bgph1;
case "colemak": return R.xml.colemak;
case "dvorak": return R.xml.dvorak;
case "neo2": return R.xml.neo2;
case "qwerty_es": return R.xml.qwerty_es;
case "qwerty_hu": return R.xml.qwerty_hu;
case "qwerty_ko": return R.xml.qwerty_ko;
case "qwerty_lv": return R.xml.qwerty_lv;
case "qwerty_pt": return R.xml.qwerty_pt;
case "qwerty": return R.xml.qwerty;
case "qwerty_sv_se": return R.xml.qwerty_sv_se;
case "qwertz_hu": return R.xml.qwertz_hu;
case "qwertz": return R.xml.qwertz;
case "ru_jcuken": return R.xml.local_ru_jcuken;
default: return R.xml.qwerty; // The config might store an invalid layout, don't crash
}
}
public static int themeId_of_string(String name)
{
switch (name)
{
case "light": return R.style.Light;
case "black": return R.style.Black;
default: case "dark": return R.style.Dark;
}
}
private static Config _globalConfig = null;
public static void initGlobalConfig(Context context, IKeyEventHandler handler)
{
_globalConfig = new Config(context, handler);
}
public static Config globalConfig()
{
return _globalConfig;
}
public static interface IKeyEventHandler
{
public void handleKeyUp(KeyValue value, Pointers.Modifiers flags);
}
}