6 files changed, 366 insertions, 0 deletions
diff --git a/src/us/minak/Minak.java b/src/us/minak/Minak.java
new file mode 100644
index 0000000..af2736f
--- /dev/null
+++ b/src/us/minak/Minak.java
@@ -0,0 +1,66 @@
+package us.minak;
+
+import android.inputmethodservice.InputMethodService;
+import java.util.Queue;
+import android.view.View;
+import android.view.inputmethod.EditorInfo;
+
+
+public class Minak extends InputMethodService {
+	private MinakView m_minak_view;
+
+	@Override
+	public View onCreateInputView() {
+		final MinakView minak_view = (MinakView) getLayoutInflater().inflate(R.layout.minak, null);
+
+		minak_view.setOnCharacterEnteredListener(new OnCharacterEnteredListener() {
+			@Override
+			public void characterEntered(String character) {
+				getCurrentInputConnection().commitText(character, 1);
+			}
+		});
+
+		minak_view.setOnBackspacePressedListener(new OnBackspacePressedListener() {
+			@Override
+			public void backspacePressed(boolean isLongClick) {
+				if (isLongClick) {
+					deleteLastWord();
+				} else {
+					getCurrentInputConnection().deleteSurroundingText(1, 0);
+				}
+			}
+		});
+
+		m_minak_view = minak_view;
+		return minak_view;
+	}
+
+	@Override
+	public void onStartInput(EditorInfo attribute, boolean restarting) {
+		if (m_minak_view != null) {
+			final Queue<Character> symbolsQueue = m_minak_view.getSymbolsQueue();
+			while (!symbolsQueue.isEmpty()) {
+				final Character character = symbolsQueue.poll();
+				getCurrentInputConnection().commitText(String.valueOf(character), 1);
+			}
+		}
+	}
+
+	/**
+	 * Deletes one word before the cursor.
+	 */
+	private void deleteLastWord() {
+		final int charactersToGet = 20;
+		final String splitRegexp = " ";
+
+		// delete trailing spaces
+		while (getCurrentInputConnection().getTextBeforeCursor(1, 0).toString().equals(splitRegexp)) {
+			getCurrentInputConnection().deleteSurroundingText(1, 0);
+		}
+
+		// delete last word letters
+		final String[] words = getCurrentInputConnection().getTextBeforeCursor(charactersToGet, 0).toString()
+				.split(splitRegexp);
+		getCurrentInputConnection().deleteSurroundingText(words[words.length - 1].length(), 0);
+	}
+}
diff --git a/src/us/minak/MinakView.java b/src/us/minak/MinakView.java
new file mode 100644
index 0000000..fe8cd25
--- /dev/null
+++ b/src/us/minak/MinakView.java
@@ -0,0 +1,180 @@
+package us.minak;
+
+import android.content.Context;
+import android.widget.Button;
+import android.widget.RelativeLayout;
+import android.util.AttributeSet;
+import android.support.v4.content.LocalBroadcastManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.BroadcastReceiver;
+
+import java.util.*;
+
+public class MinakView extends RelativeLayout {
+	private final Context mContext;
+	private OnCharacterEnteredListener mOnCharacterEnteredListener;
+	private OnBackspacePressedListener mOnBackspacePressedListener;
+	private Button mShiftButton;
+	private ShiftState mShiftState = ShiftState.OFF;
+	private final Queue<Character> mSymbolsQueue = new LinkedList<Character>();
+
+	private enum ShiftState {
+		OFF, ON, CAPS_LOCK
+	};
+
+	public MinakView(Context context, AttributeSet attrs) {
+		super(context, attrs);
+		mContext = context;
+		LocalBroadcastManager.getInstance(mContext).registerReceiver(mBroadcastReceiver,
+				new IntentFilter(SymbolsActivity.INTENT_ACTION));
+	}
+
+	@Override
+	protected void onFinishInflate() {
+		DrawingSpaceView drawingSpaceView = (DrawingSpaceView) findViewById(R.id.drawing_space);
+		drawingSpaceView.setOnGestureRecognizedListener(new OnGestureRecognizedListener() {
+			@Override
+			public void gestureRecognized(String character) {
+				enterCharacter(character);
+			}
+		});
+
+		final Button symbolsButton = (Button) findViewById(R.id.symbols_btn);
+		symbolsButton.setOnClickListener(mButtonClickListener);
+		symbolsButton.setOnLongClickListener(mButtonLongClickListener);
+
+		mShiftButton = (Button) findViewById(R.id.shift_btn);
+		mShiftButton.setOnClickListener(mButtonClickListener);
+		mShiftButton.setOnLongClickListener(mButtonLongClickListener);
+
+		final Button backspaceButton = (Button) findViewById(R.id.backspace_btn);
+		backspaceButton.setOnClickListener(mButtonClickListener);
+		backspaceButton.setOnLongClickListener(mButtonLongClickListener);
+
+		final Button spaceButton = (Button) findViewById(R.id.space_btn);
+		spaceButton.setOnClickListener(mButtonClickListener);
+		spaceButton.setOnLongClickListener(mButtonLongClickListener);
+	}
+
+	public void setOnCharacterEnteredListener(OnCharacterEnteredListener onCharacterEnteredListener) {
+		mOnCharacterEnteredListener = onCharacterEnteredListener;
+	}
+
+	public void setOnBackspacePressedListener(OnBackspacePressedListener onBackspacePressedListener) {
+		mOnBackspacePressedListener = onBackspacePressedListener;
+	}
+
+	public Queue<Character> getSymbolsQueue() {
+		return mSymbolsQueue;
+	}
+
+	/**
+	 * Receiver for broadcasts coming from the symbols activity.
+	 */
+	private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
+		@Override
+		public void onReceive(Context context, Intent intent) {
+			if (SymbolsActivity.INTENT_ACTION.equals(intent.getAction())) {
+				mSymbolsQueue.add(intent.getCharExtra(SymbolsActivity.INTENT_EXTRA_NAME, '?'));
+			}
+		}
+	};
+
+	/**
+	 * Listener handling pressing all buttons.
+	 */
+	private final OnClickListener mButtonClickListener = new OnClickListener() {
+		@Override
+		public void onClick(View v) {
+			switch (v.getId()) {
+			case R.id.symbols_btn:
+				final Intent intent = new Intent(mContext, SymbolsActivity.class);
+				intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+				mContext.startActivity(intent);
+				break;
+			case R.id.shift_btn:
+				shift();
+				break;
+			case R.id.backspace_btn:
+				mOnBackspacePressedListener.backspacePressed(false);
+				break;
+			case R.id.space_btn:
+				mOnCharacterEnteredListener.characterEntered(" ");
+				break;
+			default:
+				throw new IllegalArgumentException();
+			}
+		}
+	};
+
+	/**
+	 * Listener handling long pressing all buttons.
+	 */
+	private final OnLongClickListener mButtonLongClickListener = new OnLongClickListener() {
+		@Override
+		public boolean onLongClick(View v) {
+			switch (v.getId()) {
+			case R.id.symbols_btn:
+			case R.id.shift_btn:
+				break;
+			case R.id.backspace_btn:
+				mOnBackspacePressedListener.backspacePressed(true);
+				return true;
+			case R.id.space_btn:
+				break;
+			default:
+				throw new IllegalArgumentException();
+			}
+
+			return false;
+		}
+	};
+
+	/**
+	 * Changes shift state to the next one (OFF -> ON -> CAPS LOCK).
+	 */
+	private void shift() {
+		switch (mShiftState) {
+		case OFF:
+			mShiftState = ShiftState.ON;
+			mShiftButton.setBackgroundResource(R.drawable.shift_on);
+			break;
+		case ON:
+			mShiftState = ShiftState.CAPS_LOCK;
+			mShiftButton.setBackgroundResource(R.drawable.shift_caps_lock);
+			break;
+		case CAPS_LOCK:
+			mShiftState = ShiftState.OFF;
+			mShiftButton.setBackgroundResource(R.drawable.shift_off);
+			break;
+		default:
+			throw new IllegalArgumentException();
+		}
+	}
+
+	/**
+	 * Passes the given character to the input service.
+	 *
+	 * @param character
+	 *            The character to enter
+	 */
+	private void enterCharacter(String character) {
+		switch (mShiftState) {
+		case OFF:
+			mOnCharacterEnteredListener.characterEntered(character);
+			break;
+		case ON:
+			mOnCharacterEnteredListener.characterEntered(character.toUpperCase(Locale.ENGLISH));
+			shift();
+			break;
+		case CAPS_LOCK:
+			mOnCharacterEnteredListener.characterEntered(character.toUpperCase(Locale.ENGLISH));
+			break;
+		default:
+			throw new IllegalArgumentException();
+		}
+	}
+
+}
+\ No newline at end of file
diff --git a/src/us/minak/OnBackspacePressedListener.java b/src/us/minak/OnBackspacePressedListener.java
new file mode 100644
index 0000000..8e22d13
--- /dev/null
+++ b/src/us/minak/OnBackspacePressedListener.java
@@ -0,0 +1,14 @@
+package us.minak;
+
+/**
+ * A simple interface for handling pressing the backspace button.
+ */
+public interface OnBackspacePressedListener {
+	/**
+	 * Invoked when the backspace button is pressed.
+	 *
+	 * @param isLongClick
+	 *            if the button is long pressed
+	 */
+	void backspacePressed(boolean isLongClick);
+}
diff --git a/src/us/minak/OnCharacterEnteredListener.java b/src/us/minak/OnCharacterEnteredListener.java
new file mode 100644
index 0000000..feaf451
--- /dev/null
+++ b/src/us/minak/OnCharacterEnteredListener.java
@@ -0,0 +1,13 @@
+package us.minak;
+/**
+ * A simple interface for handling entering a character.
+ */
+public interface OnCharacterEnteredListener {
+	/**
+	 * Invoked when a character is entered.
+	 *
+	 * @param character
+	 *            The entered character
+	 */
+	void characterEntered(String character);
+}
diff --git a/src/us/minak/SketchpadView.java~ b/src/us/minak/SketchpadView.java~
new file mode 100644
index 0000000..55d69fd
--- /dev/null
+++ b/src/us/minak/SketchpadView.java~
@@ -0,0 +1,50 @@
+import java.util.List;
+
+import android.gesture.Gesture;
+import android.gesture.GestureLibraries;
+import android.gesture.GestureLibrary;
+import android.gesture.GestureOverlayView;
+import android.gesture.GestureOverlayView.OnGesturePerformedListener;
+import android.gesture.Prediction;
+
+public class SketchpadView extends GestureOverlayView implements OnGesturePerformedListener{
+	//Setting score thresh hold
+	private static  final double score_threshold = 3.0;
+	//loads gesture library
+	private final GestureLibrary gestureLib;
+	//used to capture drawn gestures
+	private onGestureRecognizedListener gestureRecognizer;
+	
+	public SketchpadView (){
+		//not sure what to add here
+	}
+
+	public void setOnGestureRecognizedListener(OnGestureRecognizedListener onGestureRecognizedListener) {
+		gestureRecognizer = onGestureRecognizedListener;	
+	}
+
+	@Override
+	public void onGesturePerformed(GestureOverlayView view, Gesture gesture){
+		//create list of predicted characters to be entered
+		List<Prediction> predictions = gestureLib.recognize(gesture);
+		Prediction bestPrediction = null;
+		//if we have a prediction
+		if(!predictions.isEmpty()){
+			//I believe that this just blidnly adds a predicted character without any checks
+			//we need to see if there is a way to actual get the best prediction
+			//if this lists them based on the best, then fuck me and ignore this/delete this
+			bestPrediction = predictions.get(0);
+		}
+		//if we have a gesture and a decent prediction
+		if(gestureRecognizer != null && bestPrediction != null){
+			//if the prediction is good enough
+			if(bestPrediction.score > score_threshold){
+				//we recognize it
+				gestureRecognizer.gestureRecognized(bestPrediction.name);
+			}else{
+				//why?
+				clear(false);
+			}
+		}
+	} 
+}
diff --git a/src/us/minak/SymbolsActivity.java b/src/us/minak/SymbolsActivity.java
new file mode 100644
index 0000000..3480fa4
--- /dev/null
+++ b/src/us/minak/SymbolsActivity.java
@@ -0,0 +1,43 @@
+package us.minak;
+
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.content.LocalBroadcastManager;
+import android.view.View;
+import android.view.Window;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.GridView;
+
+/**
+ * Represents the window for choosing additional characters.
+ */
+public class SymbolsActivity extends Activity {
+	public static final String INTENT_ACTION = "com.samsung.penboard.SYMBOL_ENTERED";
+	public static final String INTENT_EXTRA_NAME = "symbol";
+	private static final Character[] SYMBOLS = new Character[] { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '!',
+			'@', '#', '$', '%', '^', '&', '*', '(', ')', '`', '-', '=', '~', '_', '+', '[', ']', '\\', '{', '}', '|',
+			';', '\'', ':', '\'', ',', '.', '/', '<', '>', '?' };
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		requestWindowFeature(Window.FEATURE_NO_TITLE);
+		setContentView(R.layout.symbols);
+		final GridView gridView = (GridView) findViewById(R.id.symbols_gridview);
+		final ArrayAdapter<Character> adapter = new ArrayAdapter<Character>(this, android.R.layout.simple_list_item_1,
+				SYMBOLS);
+		gridView.setAdapter(adapter);
+		gridView.setOnItemClickListener(new OnItemClickListener() {
+			@Override
+			public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+				final Intent intent = new Intent(INTENT_ACTION);
+				intent.putExtra(INTENT_EXTRA_NAME, SYMBOLS[position]);
+				LocalBroadcastManager.getInstance(SymbolsActivity.this).sendBroadcast(intent);
+			}
+		});
+	}
+}