1 files changed, 83 insertions, 0 deletions
diff --git a/srcs/juloo.keyboard2/DeviceLocales.java b/srcs/juloo.keyboard2/DeviceLocales.java
new file mode 100644
index 0000000..a6cfdaf
--- /dev/null
+++ b/srcs/juloo.keyboard2/DeviceLocales.java
@@ -0,0 +1,83 @@
+package juloo.keyboard2;
+
+import android.content.Context;
+import android.os.Build.VERSION;
+import android.view.inputmethod.InputMethodInfo;
+import android.view.inputmethod.InputMethodManager;
+import android.view.inputmethod.InputMethodSubtype;
+import java.util.ArrayList;
+import java.util.List;
+
+public final class DeviceLocales
+{
+  public final List<Loc> installed;
+  public final Loc default_;
+
+  public static DeviceLocales load(Context ctx)
+  {
+    InputMethodManager imm =
+      (InputMethodManager)ctx.getSystemService(Context.INPUT_METHOD_SERVICE);
+    List<Loc> locs = get_installed_locales(ctx.getPackageName(), imm);
+    return new DeviceLocales(locs, current_locale(imm, locs));
+  }
+
+  /** Extra keys required by all the installed locales. */
+  public ExtraKeys extra_keys()
+  {
+    List<ExtraKeys> extra_keys = new ArrayList<ExtraKeys>();
+    for (Loc l : installed)
+      extra_keys.add(l.extra_keys);
+    return ExtraKeys.merge(extra_keys);
+  }
+
+  public static final class Loc
+  {
+    public final String lang_tag;
+    public final String script;
+    public final String default_layout; // Might be [null]
+    public final ExtraKeys extra_keys;
+
+    public Loc(InputMethodSubtype st)
+    {
+      lang_tag = st.getLanguageTag();
+      script = st.getExtraValueOf("script");
+      default_layout = st.getExtraValueOf("default_layout");
+      String extra_keys_s = st.getExtraValueOf("extra_keys");
+      extra_keys = (extra_keys_s != null) ?
+        ExtraKeys.parse(script, extra_keys_s) : ExtraKeys.EMPTY;
+    }
+  }
+
+  private DeviceLocales(List<Loc> locs, Loc def)
+  { installed = locs; default_ = def; }
+
+  private static List<Loc> get_installed_locales(String pkg, InputMethodManager imm)
+  {
+    List<Loc> locs = new ArrayList<Loc>();
+    for (InputMethodInfo imi : imm.getEnabledInputMethodList())
+      if (imi.getPackageName().equals(pkg))
+      {
+        for (InputMethodSubtype subtype :
+            imm.getEnabledInputMethodSubtypeList(imi, true))
+          locs.add(new Loc(subtype));
+        break;
+      }
+    return locs;
+  }
+
+  private static Loc current_locale(InputMethodManager imm, List<Loc> installed)
+  {
+    // Android might return a random subtype, for example, the first in the
+    // list alphabetically.
+    InputMethodSubtype current_subtype = imm.getCurrentInputMethodSubtype();
+    if (current_subtype == null)
+      return null;
+    if (VERSION.SDK_INT < 24)
+      return new Loc(current_subtype);
+    String default_lang_tag = current_subtype.getLanguageTag();
+    for (Loc l : installed)
+      if (l.lang_tag.equals(default_lang_tag))
+        return l;
+    return null;
+  }
+}