initial varnam keyboard commit

java/AndroidManifest.xml

@@ -21,7 +21,7 @@
         android:versionName="2.0.4">
 
     <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="22" />
-
+    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
     <uses-permission android:name="android.permission.GET_ACCOUNTS" />
     <uses-permission android:name="android.permission.READ_CONTACTS" />
     <uses-permission android:name="android.permission.READ_PROFILE" />

java/src/org.smc.inputmethod/indic/Varnam.java

@@ -12,7 +12,7 @@
 
 public class Varnam{
 
-    public String readfromurl(String input) {
+    public String transliterate(String input) {
         String starting = "https://api.varnamproject.com/tl/ml/";
         String urlstring = starting + input;
 
@@ -27,12 +27,19 @@ public String readfromurl(String input) {
             JSONArray dummy = json.getJSONArray("result");
             return dummy.getString(0);
         } catch (MalformedURLException e) {
-            throw new RuntimeExceptio(e);
+            throw new RuntimeException(e);
         } catch (IOException e) {
-            throw new RuntimeExceptio(e);
+            throw new RuntimeException(e);
         } catch (JSONException e) {
-            throw new RuntimeExceptio(e);
+            throw new RuntimeException(e);
         }
-        return "";
+    }
+
+    public int getMaxKeyLength() {
+        return 4;
+    }
+
+    public int getContextLength() {
+        return 2;
     }
 }

java/src/org.smc.inputmethod/indic/WordComposer.java

@@ -241,6 +241,27 @@ public void applyTransliteration(final Event event) {
         }
     }
 
+    public void applyTransliterationByEngine(final Event event) {
+        context = "";
+        final int primaryCode = event.mCodePoint;
+
+        refreshTypedWordCache();
+
+        String mTypedWord = mTypedWordCache.toString();
+
+        if(mTransliterationEngine != null && Constants.CODE_DELETE != event.mKeyCode) {
+            String current = new String(Character.toChars(primaryCode));
+            int startPos = mTypedWord.length() - 1 > mTransliterationEngine.getMaxKeyLength() ? mTypedWord.length() - mTransliterationEngine.getMaxKeyLength() - 1: 0;
+            String replacement = mTransliterationEngine.transliterate(mTypedWord);
+            mCombinerChain.replace(startPos + replacement.length() - 1, mTypedWord.length(), replacement);
+
+            context += current;
+            if(context.length() > mTransliterationEngine.getContextLength()) {
+                context = context.substring(context.length() - mTransliterationEngine.getContextLength());
+            }
+        }
+    }
+
     /**
      * Apply a processed input event.
      *
@@ -257,6 +278,7 @@ public void applyProcessedEvent(final Event event) {
         final int newIndex = size();
 
         applyTransliteration(event);
+        applyTransliterationByEngine(event);
 
         refreshTypedWordCache();
         mCursorPositionWithinWord = mCodePointSize;