Unexpected-Keyboard/srcs/juloo.keyboard2/Config.java
Mostafa Ayesh ce51df6f5a
Add Arabic layout (#314)
* add arabic keyboard
* use unicode values for special characters
* add alternate layout
* use arabic numbers
2023-03-11 16:54:20 +01:00

413 lines
15 KiB
Java

package juloo.keyboard2;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.KeyEvent;
import java.util.HashSet;
import java.util.Set;
final class Config
{
private final SharedPreferences _prefs;
// From resources
public final float marginTop;
public final float keyPadding;
public final float labelTextSize;
public final float sublabelTextSize;
// From preferences
public KeyboardData layout; // Or 'null' for the system defaults
public KeyboardData second_layout; // Or 'null' for none
public KeyboardData custom_layout; // Might be 'null'
public boolean show_numpad = false;
// From the 'numpad_layout' option, also apply to the numeric pane.
public boolean inverse_numpad = false;
public boolean number_row;
public float swipe_dist_px;
public float slide_step_px;
public boolean vibrateEnabled;
public long longPressTimeout;
public long longPressInterval;
public float margin_bottom;
public float keyHeight;
public float horizontal_margin;
public float keyVerticalInterval;
public float keyHorizontalInterval;
public int labelBrightness; // 0 - 255
public int keyboardOpacity; // 0 - 255
public int keyOpacity; // 0 - 255
public int keyActivatedOpacity; // 0 - 255
public boolean double_tap_lock_shift;
public float characterSize; // Ratio
public int accents; // Values are R.values.pref_accents_v_*
public int theme; // Values are R.style.*
public boolean autocapitalisation;
public boolean switch_input_immediate;
// Dynamically set
public boolean shouldOfferSwitchingToNextInputMethod;
public boolean shouldOfferSwitchingToSecond;
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<KeyValue> extra_keys_subtype;
public Set<KeyValue> extra_keys_param;
public final IKeyEventHandler handler;
public boolean orientation_landscape = false;
private Config(SharedPreferences prefs, Resources res, IKeyEventHandler h)
{
_prefs = prefs;
// static values
marginTop = res.getDimension(R.dimen.margin_top);
keyPadding = res.getDimension(R.dimen.key_padding);
labelTextSize = 0.33f;
sublabelTextSize = 0.22f;
// from prefs
refresh(res);
// initialized later
shouldOfferSwitchingToNextInputMethod = false;
shouldOfferSwitchingToSecond = false;
actionLabel = null;
actionId = 0;
swapEnterActionKey = false;
extra_keys_subtype = null;
handler = h;
}
/*
** Reload prefs
*/
public void refresh(Resources res)
{
DisplayMetrics dm = res.getDisplayMetrics();
orientation_landscape = res.getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
// The height of the keyboard is relative to the height of the screen.
// This is the height of the keyboard if it have 4 rows.
int keyboardHeightPercent;
// Scale some dimensions depending on orientation
float horizontalIntervalScale = 1.f;
float characterSizeScale = 1.f;
String show_numpad_s = _prefs.getString("show_numpad", "never");
show_numpad = "always".equals(show_numpad_s);
if (orientation_landscape)
{
if ("landscape".equals(show_numpad_s))
show_numpad = true;
keyboardHeightPercent = _prefs.getInt("keyboard_height_landscape", 50);
horizontalIntervalScale = 2.f;
characterSizeScale = 1.25f;
}
else
{
keyboardHeightPercent = _prefs.getInt("keyboard_height", 35);
}
layout = layout_of_string(res, _prefs.getString("layout", "none"));
second_layout = tweak_secondary_layout(layout_of_string(res, _prefs.getString("second_layout", "none")));
custom_layout = KeyboardData.load_string(_prefs.getString("custom_layout", ""));
inverse_numpad = _prefs.getString("numpad_layout", "default").equals("low_first");
number_row = _prefs.getBoolean("number_row", false);
// The baseline for the swipe distance correspond to approximately the
// width of a key in portrait mode, as most layouts have 10 columns.
// Multipled by the DPI ratio because most swipes are made in the diagonals.
// The option value uses an unnamed scale where the baseline is around 25.
float dpi_ratio = Math.max(dm.xdpi, dm.ydpi) / Math.min(dm.xdpi, dm.ydpi);
float swipe_scaling = Math.min(dm.widthPixels, dm.heightPixels) / 10.f * dpi_ratio;
float swipe_dist_value = Float.valueOf(_prefs.getString("swipe_dist", "15"));
swipe_dist_px = swipe_dist_value / 25.f * swipe_scaling;
slide_step_px = swipe_dist_px / 4.f;
vibrateEnabled = _prefs.getBoolean("vibrate_enabled", true);
longPressTimeout = _prefs.getInt("longpress_timeout", 600);
longPressInterval = _prefs.getInt("longpress_interval", 65);
margin_bottom = get_dip_pref(dm, oriented_pref("margin_bottom"),
res.getDimension(R.dimen.margin_bottom));
keyVerticalInterval = get_dip_pref(dm, "key_vertical_space",
res.getDimension(R.dimen.key_vertical_interval));
keyHorizontalInterval =
get_dip_pref(dm, "key_horizontal_space",
res.getDimension(R.dimen.key_horizontal_interval))
* horizontalIntervalScale;
// Label brightness is used as the alpha channel
labelBrightness = _prefs.getInt("label_brightness", 100) * 255 / 100;
// Keyboard opacity
keyboardOpacity = _prefs.getInt("keyboard_opacity", 100) * 255 / 100;
keyOpacity = _prefs.getInt("key_opacity", 100) * 255 / 100;
keyActivatedOpacity = _prefs.getInt("key_activated_opacity", 100) * 255 / 100;
// Do not substract keyVerticalInterval from keyHeight because this is done
// during rendered.
keyHeight = dm.heightPixels * keyboardHeightPercent / 100 / 4;
horizontal_margin =
get_dip_pref(dm, oriented_pref("horizontal_margin"),
res.getDimension(R.dimen.horizontal_margin));
double_tap_lock_shift = _prefs.getBoolean("lock_double_tap", false);
characterSize =
_prefs.getFloat("character_size", 1.f)
* characterSizeScale;
accents = Integer.valueOf(_prefs.getString("accents", "1"));
theme = getThemeId(res, _prefs.getString("theme", ""));
autocapitalisation = _prefs.getBoolean("autocapitalisation", true);
switch_input_immediate = _prefs.getBoolean("switch_input_immediate", false);
extra_keys_param = ExtraKeyCheckBoxPreference.get_extra_keys(_prefs);
}
KeyValue action_key()
{
// Update the name to avoid caching in KeyModifier
return (actionLabel == null) ? null :
KeyValue.getKeyByName("action").withSymbol(actionLabel);
}
/** 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
* - Add the optional numpad and number row
*/
public KeyboardData modify_layout(KeyboardData kw)
{
final KeyValue action_key = action_key();
// Extra keys are removed from the set as they are encountered during the
// first iteration then automatically added.
final Set<KeyValue> extra_keys = new HashSet<KeyValue>();
final Set<KeyValue> remove_keys = new HashSet<KeyValue>();
if (extra_keys_subtype != null)
extra_keys.addAll(extra_keys_subtype);
extra_keys.addAll(extra_keys_param);
boolean number_row = this.number_row && !show_numpad;
if (number_row)
KeyboardData.number_row.getKeys(remove_keys);
kw = kw.mapKeys(new KeyboardData.MapKeyValues() {
public KeyValue apply(KeyValue key, boolean localized)
{
boolean is_extra_key = extra_keys.contains(key);
if (is_extra_key)
extra_keys.remove(key);
if (localized && !is_extra_key)
return null;
if (remove_keys.contains(key))
return null;
switch (key.getKind())
{
case Event:
switch (key.getEvent())
{
case CHANGE_METHOD:
if (!shouldOfferSwitchingToNextInputMethod)
return null;
if (switch_input_immediate)
return KeyValue.getKeyByName("change_method_prev");
return key;
case ACTION:
return (swapEnterActionKey && action_key != null) ?
KeyValue.getKeyByName("enter") : action_key;
case SWITCH_SECOND:
return shouldOfferSwitchingToSecond ? key : null;
}
break;
case Keyevent:
switch (key.getKeyevent())
{
case KeyEvent.KEYCODE_ENTER:
return (swapEnterActionKey && action_key != null) ? action_key : key;
}
break;
case Modifier:
switch (key.getModifier())
{
case SHIFT:
if (double_tap_lock_shift)
return key.withFlags(key.getFlags() | KeyValue.FLAG_LOCK);
}
break;
}
return key;
}
});
if (show_numpad)
kw = kw.addNumPad();
if (number_row)
kw = kw.addNumberRow();
if (extra_keys.size() > 0)
kw = kw.addExtraKeys(extra_keys.iterator());
return kw;
}
/**
* Handle the numpad layout.
*/
public KeyboardData modify_numpad(KeyboardData kw)
{
final KeyValue action_key = action_key();
return kw.mapKeys(new KeyboardData.MapKeyValues() {
public KeyValue apply(KeyValue key, boolean localized)
{
switch (key.getKind())
{
case Event:
switch (key.getEvent())
{
case ACTION:
return (swapEnterActionKey && action_key != null) ?
KeyValue.getKeyByName("enter") : action_key;
}
break;
case Keyevent:
switch (key.getKeyevent())
{
case KeyEvent.KEYCODE_ENTER:
return (swapEnterActionKey && action_key != null) ? action_key : key;
}
break;
case Char:
char a = key.getChar(), b = a;
if (inverse_numpad)
b = inverse_numpad_char(a);
if (a != b)
return key.withChar(b);
break;
}
return key;
}
});
}
/** Modify a layout to turn it into a secondary layout by changing the
"switch_second" key. */
KeyboardData tweak_secondary_layout(KeyboardData layout)
{
if (layout == null)
return null;
return layout.mapKeys(new KeyboardData.MapKeyValues() {
public KeyValue apply(KeyValue key, boolean localized)
{
if (key.getKind() == KeyValue.Kind.Event
&& key.getEvent() == KeyValue.Event.SWITCH_SECOND)
return KeyValue.getKeyByName("switch_second_back");
return key;
}
});
}
private float get_dip_pref(DisplayMetrics dm, 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));
}
/** Returns preference name from a prefix depending on orientation. */
private String oriented_pref(String base_name)
{
String suffix = orientation_landscape ? "_landscape" : "_portrait";
return base_name + suffix;
}
private int getThemeId(Resources res, String theme_name)
{
switch (theme_name)
{
case "light": return R.style.Light;
case "black": return R.style.Black;
case "altblack": return R.style.AltBlack;
case "dark": return R.style.Dark;
case "white": return R.style.White;
case "epaper": return R.style.ePaper;
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 KeyboardData layout_of_string(Resources res, String name)
{
int id = R.xml.qwerty; // The config might store an invalid layout, don't crash
switch (name)
{
case "system": case "none": return null;
case "custom": if (custom_layout != null) return custom_layout; break;
case "azerty": id = R.xml.azerty; break;
case "bangla": id = R.xml.bangla; break;
case "bgph1": id = R.xml.local_bgph1; break;
case "bone": id = R.xml.bone; break;
case "colemak": id = R.xml.colemak; break;
case "dvorak": id = R.xml.dvorak; break;
case "devanagari_1": id = R.xml.devanagari_1; break;
case "devanagari_2": id = R.xml.devanagari_2; break;
case "jcuken_ua": id = R.xml.jcuken_ua; break;
case "neo2": id = R.xml.neo2; break;
case "qwerty": id = R.xml.qwerty; break;
case "qwerty_el": id = R.xml.qwerty_el; break;
case "qwerty_es": id = R.xml.qwerty_es; break;
case "qwerty_hu": id = R.xml.qwerty_hu; break;
case "qwerty_ko": id = R.xml.qwerty_ko; break;
case "qwerty_lv": id = R.xml.qwerty_lv; break;
case "qwerty_no": id = R.xml.qwerty_no; break;
case "qwerty_pt": id = R.xml.qwerty_pt; break;
case "qwerty_sv_se": id = R.xml.qwerty_sv_se; break;
case "qwerty_tr": id = R.xml.qwerty_tr; break;
case "qwerty_pl": id = R.xml.qwerty_pl; break;
case "qwerty_vi": id = R.xml.qwerty_vi; break;
case "qwertz": id = R.xml.qwertz; break;
case "qwertz_cs": id = R.xml.qwertz_cs; break;
case "qwertz_de": id = R.xml.qwertz_de; break;
case "qwertz_hu": id = R.xml.qwertz_hu; break;
case "qwertz_sk": id = R.xml.qwertz_sk; break;
case "ru_jcuken": id = R.xml.local_ru_jcuken; break;
case "he_il_1452_1": id = R.xml.he_il_1452_1; break;
case "he_il_1452_2": id = R.xml.he_il_1452_2; break;
case "ar_pc": id = R.xml.ar_pc; break;
case "ar_alt": id = R.xml.ar_alt; break;
}
return KeyboardData.load(res, id);
}
char inverse_numpad_char(char c)
{
switch (c)
{
case '7': return '1';
case '8': return '2';
case '9': return '3';
case '1': return '7';
case '2': return '8';
case '3': return '9';
default: return c;
}
}
private static Config _globalConfig = null;
public static void initGlobalConfig(SharedPreferences prefs, Resources res,
IKeyEventHandler handler)
{
_globalConfig = new Config(prefs, res, handler);
}
public static Config globalConfig()
{
return _globalConfig;
}
public static interface IKeyEventHandler
{
public void key_up(KeyValue value, Pointers.Modifiers flags);
}
}