add gujarati layout (likely needs improvement, see #417)

app/src/main/assets/layouts/gujarati.json

@@ -0,0 +1,132 @@
+[
+  [
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ધ" },
+      "default": { "label": "અ" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ન" },
+      "default": { "label": "ા" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "પ" },
+      "default": { "label": "િ" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ફ" },
+      "default": { "label": "ી" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "બ" },
+      "default": { "label": "◌ુ" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ભ" },
+      "default": { "label": "◌ૂ" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "મ" },
+      "default": { "label": "◌ે" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ય" },
+      "default": { "label": "◌ૈ" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ર" },
+      "default": { "label": "ો" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "લ" },
+      "default": { "label": "ૌ" }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "વ" },
+      "default": { "label": "ં" }
+    }
+  ],
+  [
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "શ" },
+      "default": { "label": "ઃ", "popup": { "main": { "label": "૱" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ષ" },
+      "default": { "label": "ક", "popup": { "main": { "label": "ૅ" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "સ" },
+      "default": { "label": "ખ", "popup": { "main": { "label": "ૉ" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "હ" },
+      "default": { "label": "ગ", "popup": { "main": { "label": "઼" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ળ" },
+      "default": { "label": "ઘ", "popup": { "main": { "label": "ૺ" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ક્ષ" },
+      "default": { "label": "ઙ", "popup": { "main": { "label": "ઁ" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "જ્ઞ" },
+      "default": { "label": "ચ", "popup": { "main": { "label": "૾" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "આ" },
+      "default": { "label": "છ", "popup": { "main": { "label": "૿" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ઇ" },
+      "default": { "label": "જ", "popup": { "main": { "label": "ત્ર" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ઈ" },
+      "default": { "label": "ઝ", "popup": { "main": { "label": "શ્ર" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ઉ" },
+      "default": { "label": "ઞ", "popup": { "main": { "label": "શ્ર" } } }
+    }
+  ],
+  [
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ઊ" },
+      "default": { "label": "ટ", "popup": { "main": { "label": "શ્વ" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "એ" },
+      "default": { "label": "ઠ", "popup": { "main": { "label": "ત્ત" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ઐ" },
+      "default": { "label": "ડ", "popup": { "main": { "label": "દ્ર" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ઓ" },
+      "default": { "label": "ઢ", "popup": { "main": { "label": "દ્વ" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ઔ" },
+      "default": { "label": "ણ", "popup": { "main": { "label": "દ્દ" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "અં" },
+      "default": { "label": "ત", "popup": { "main": { "label": "દ્ય" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "અઃ" },
+      "default": { "label": "થ", "popup": { "main": { "label": "꠰" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ૐ" },
+      "default": { "label": "દ", "popup": { "main": { "label": "꠱" } } }
+    },
+    { "$": "shift_state_selector",
+      "manualOrLocked": { "label": "ૠ" },
+      "default": { "label": "્", "popup": { "main": { "label": "꠲" } } }
+    }
+  ]
+]

app/src/main/java/org/dslul/openboard/inputmethod/latin/utils/ScriptUtils.java

@@ -41,6 +41,7 @@ public class ScriptUtils {
     public static final int SCRIPT_THAI = 17;
     public static final int SCRIPT_BULGARIAN = 18; // todo: why is bulgarian a separate script?
     public static final int SCRIPT_HANGUL = 19;
+    public static final int SCRIPT_GUJARATI = 20;
 
     private static final TreeMap<String, Integer> mLanguageCodeToScriptCode;
     private final static ArraySet<Integer> UPPERCASE_SCRIPTS = new ArraySet<>();
@@ -79,6 +80,7 @@ public class ScriptUtils {
         mLanguageCodeToScriptCode.put("kk", SCRIPT_CYRILLIC);
         mLanguageCodeToScriptCode.put("ky", SCRIPT_CYRILLIC);
         mLanguageCodeToScriptCode.put("ne", SCRIPT_DEVANAGARI);
+        mLanguageCodeToScriptCode.put("gu", SCRIPT_GUJARATI);
 
         // only Latin, Cyrillic, Greek and Armenian have upper/lower case
         // https://unicode.org/faq/casemap_charprop.html#3
@@ -203,6 +205,9 @@ public class ScriptUtils {
                         || codePoint >= 0xA960 && codePoint <= 0xA97C
                         || codePoint >= 0xD7B0 && codePoint <= 0xD7C6
                         || codePoint >= 0xD7CB && codePoint <= 0xD7FB);
+            case SCRIPT_GUJARATI:
+                // Gujarati unicode block is U+0A80..U+0AFF
+                return (codePoint >= 0xA80 && codePoint <= 0xAFF);
             case SCRIPT_UNKNOWN:
                 return true;
             default:

app/src/main/res/xml/method.xml

@@ -44,6 +44,7 @@
     fr_CA: French (Canada)/qwerty
     fr_CH: French (Switzerland)/qwertz+
     gl_ES: Galician (Spain)/qwerty+
+    gu: Gujarati/gujarati
     hi: Hindi/hindi
     hi: Hindi/hindi_compact
     hi_ZZ: Hinglish/qwerty  # This is a preliminary keyboard layout.
@@ -418,6 +419,15 @@
             android:imeSubtypeMode="keyboard"
             android:imeSubtypeExtraValue="KeyboardLayoutSet=qwerty+,AsciiCapable,EmojiCapable"
             android:isAsciiCapable="true"
+    />
+    <subtype android:icon="@drawable/ic_ime_switcher"
+            android:label="@string/subtype_generic"
+            android:subtypeId="0x39713b7f"
+            android:imeSubtypeLocale="gu"
+            android:languageTag="gu"
+            android:imeSubtypeMode="keyboard"
+            android:imeSubtypeExtraValue="KeyboardLayoutSet=gujarati,EmojiCapable"
+            android:isAsciiCapable="false"
     />
         <subtype android:icon="@drawable/ic_ime_switcher"
             android:label="@string/subtype_generic"