Use generated arrays in Config.layout_of_string

This function is no longer an hardcoded list of layout ids. It's
replaced by a linear scan of the previously generated array and a new
corresponding array of resource ids.

gen_layouts.py

@@ -40,22 +40,22 @@ def sort_layouts(layouts):
 
 # Write the XML arrays used in the preferences.
 def generate_arrays(out, layouts):
-    def add_items(parent, strings):
-        for s in strings:
+    def mk_array(tag, name, strings_items):
+        elem = XML.Element(tag, name=name)
+        for s in strings_items:
             item = XML.Element("item")
             item.text = s
-            parent.append(item)
+            elem.append(item)
+        return elem
     none_item = [ ("none", "None") ]
     custom_item = [ ("custom", "@string/pref_layout_e_custom") ]
-    lids, names = zip(*(none_item + layouts + custom_item)) # unzip
-    values = XML.Element("string-array", name="pref_layout_values")
-    add_items(values, lids)
-    entries = XML.Element("string-array", name="pref_layout_entries")
-    add_items(entries, names)
+    values_items, entries_items = zip(*(none_item + layouts + custom_item)) # unzip
+    ids_items = map(lambda s: "@xml/%s" % s if s not in ["none", "custom"] else "-1", values_items)
     root = XML.Element("resources")
     root.append(XML.Comment(text="DO NOT EDIT. This file is generated, see gen_layouts.py."))
-    root.append(values)
-    root.append(entries)
+    root.append(mk_array("string-array", "pref_layout_values", values_items))
+    root.append(mk_array("string-array", "pref_layout_entries", entries_items))
+    root.append(mk_array("integer-array", "layout_ids", ids_items))
     XML.indent(root)
     XML.ElementTree(element=root).write(out, encoding="unicode", xml_declaration=True)
 

res/values/layouts.xml

@@ -81,4 +81,44 @@
     <item>QWERTZ (Slovak)</item>
     <item>@string/pref_layout_e_custom</item>
   </string-array>
+  <integer-array name="layout_ids">
+    <item>-1</item>
+    <item>@xml/latn_qwerty_us</item>
+    <item>@xml/latn_colemak</item>
+    <item>@xml/latn_dvorak</item>
+    <item>@xml/arab_alt</item>
+    <item>@xml/arab_pc</item>
+    <item>@xml/arab_pc_ckb</item>
+    <item>@xml/arab_pc_ir</item>
+    <item>@xml/beng_national</item>
+    <item>@xml/beng_provat</item>
+    <item>@xml/cyrl_jcuken_ru</item>
+    <item>@xml/cyrl_jcuken_uk</item>
+    <item>@xml/cyrl_yaverti</item>
+    <item>@xml/deva_alt</item>
+    <item>@xml/deva_inscript</item>
+    <item>@xml/grek_qwerty</item>
+    <item>@xml/hang_dubeolsik_kr</item>
+    <item>@xml/hebr_1_il</item>
+    <item>@xml/hebr_2_il</item>
+    <item>@xml/latn_azerty_fr</item>
+    <item>@xml/latn_bone</item>
+    <item>@xml/latn_neo2</item>
+    <item>@xml/latn_qwerty_br</item>
+    <item>@xml/latn_qwerty_es</item>
+    <item>@xml/latn_qwerty_hu</item>
+    <item>@xml/latn_qwerty_lv</item>
+    <item>@xml/latn_qwerty_no</item>
+    <item>@xml/latn_qwerty_pl</item>
+    <item>@xml/latn_qwerty_ro</item>
+    <item>@xml/latn_qwerty_se</item>
+    <item>@xml/latn_qwerty_tr</item>
+    <item>@xml/latn_qwerty_vi</item>
+    <item>@xml/latn_qwertz</item>
+    <item>@xml/latn_qwertz_cz</item>
+    <item>@xml/latn_qwertz_de</item>
+    <item>@xml/latn_qwertz_hu</item>
+    <item>@xml/latn_qwertz_sk</item>
+    <item>-1</item>
+  </integer-array>
 </resources>

srcs/juloo.keyboard2/Config.java

@@ -3,11 +3,14 @@ package juloo.keyboard2;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.content.res.TypedArray;
 import android.os.Build;
 import android.util.DisplayMetrics;
 import android.util.TypedValue;
 import android.view.KeyEvent;
+import java.util.Arrays;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 
 final class Config
@@ -335,53 +338,34 @@ final class Config
     }
   }
 
+  /** Obtained from XML. */
+  static List<String> layout_ids_str = null;
+  static TypedArray layout_ids_res = null;
+
   /** Might return [null] if the selected layout is "system", "custom" or if
       the name is not recognized. */
   public KeyboardData layout_of_string(Resources res, String name)
   {
-    int id;
+    if (layout_ids_str == null)
+    {
+      layout_ids_str = Arrays.asList(res.getStringArray(R.array.pref_layout_values));
+      layout_ids_res = res.obtainTypedArray(R.array.layout_ids);
+    }
+    int i = layout_ids_str.indexOf(name);
+    if (i >= 0)
+    {
+      int id = layout_ids_res.getResourceId(i, 0);
+      if (id > 0)
+        return KeyboardData.load(res, id);
+      // Fallthrough
+    }
     switch (name)
     {
-      case "arab_pc_ckb": id = R.xml.arab_pc_ckb; break;
-      case "arab_pc_ir": id = R.xml.arab_pc_ir; break;
-      case "arab_pc": id = R.xml.arab_pc; break;
-      case "arab_alt": id = R.xml.arab_alt; break;
-      case "beng_national": id = R.xml.beng_national; break;
-      case "beng_provat": id = R.xml.beng_provat; break;
-      case "cyrl_jcuken_ru": id = R.xml.cyrl_jcuken_ru; break;
-      case "cyrl_jcuken_uk": id = R.xml.cyrl_jcuken_uk; break;
-      case "cyrl_yaverti": id = R.xml.cyrl_yaverti; break;
-      case "deva_inscript": id = R.xml.deva_inscript; break;
-      case "deva_alt": id = R.xml.deva_alt; break;
-      case "grek_qwerty": id = R.xml.grek_qwerty; break;
-      case "hang_dubeolsik_kr": id = R.xml.hang_dubeolsik_kr; break;
-      case "hebr_1_il": id = R.xml.hebr_1_il; break;
-      case "hebr_2_il": id = R.xml.hebr_2_il; break;
-      case "latn_azerty_fr": id = R.xml.latn_azerty_fr; break;
-      case "latn_bone": id = R.xml.latn_bone; break;
-      case "latn_colemak": id = R.xml.latn_colemak; break;
-      case "latn_dvorak": id = R.xml.latn_dvorak; break;
-      case "latn_neo2": id = R.xml.latn_neo2; break;
-      case "latn_qwerty_hu": id = R.xml.latn_qwerty_hu; break;
-      case "latn_qwerty_br": id = R.xml.latn_qwerty_br; break;
-      case "latn_qwerty_es": id = R.xml.latn_qwerty_es; break;
-      case "latn_qwerty_lv": id = R.xml.latn_qwerty_lv; break;
-      case "latn_qwerty_no": id = R.xml.latn_qwerty_no; break;
-      case "latn_qwerty_pl": id = R.xml.latn_qwerty_pl; break;
-      case "latn_qwerty_ro": id = R.xml.latn_qwerty_ro; break;
-      case "latn_qwerty_se": id = R.xml.latn_qwerty_se; break;
-      case "latn_qwerty_tr": id = R.xml.latn_qwerty_tr; break;
-      case "latn_qwerty_us": id = R.xml.latn_qwerty_us; break;
-      case "latn_qwerty_vi": id = R.xml.latn_qwerty_vi; break;
-      case "latn_qwertz": id = R.xml.latn_qwertz; break;
-      case "latn_qwertz_cz": id = R.xml.latn_qwertz_cz; break;
-      case "latn_qwertz_de": id = R.xml.latn_qwertz_de; break;
-      case "latn_qwertz_hu": id = R.xml.latn_qwertz_hu; break;
-      case "latn_qwertz_sk": id = R.xml.latn_qwertz_sk; break;
       case "custom": return custom_layout;
-      case "system": case "none": default: return null;
+      case "system":
+      case "none":
+      default: return null;
     }
-    return KeyboardData.load(res, id);
   }
 
   char inverse_numpad_char(char c)