content: /****************************************************************************
  Copyright (c) 2010-2011 cocos2d-x.org
  
  http://www.cocos2d-x.org
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
  ****************************************************************************/
  package org.cocos2dx.lib;
  
  import android.content.Context;
  import android.opengl.GLSurfaceView;
  import android.os.Handler;
  import android.os.Message;
  import android.text.Editable;
  import android.text.TextWatcher;
  import android.util.AttributeSet;
  import android.util.Log;
  import android.view.KeyEvent;
  import android.view.MotionEvent;
  import android.view.inputmethod.InputMethodManager;
  import android.widget.TextView;
  import android.widget.TextView.OnEditorActionListener;
  
  class TextInputWraper implements TextWatcher, OnEditorActionListener {
  	
  	private static final Boolean debug = false;
  	private void LogD(String msg) {
  		if (debug) Log.d("TextInputFilter", msg);
  	}
  	
  	private Cocos2dxGLSurfaceView mMainView;
  	private String mText;
  	private String mOriginText;
  	
  	private Boolean isFullScreenEdit() {
  		InputMethodManager imm = (InputMethodManager)mMainView.getTextField().getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
  		return imm.isFullscreenMode();
  	}
  
  	public TextInputWraper(Cocos2dxGLSurfaceView view) {
  		mMainView = view;
  	}
  	
  	public void setOriginText(String text) {
  		mOriginText = text;
  	}
  	
  
  	public void afterTextChanged(Editable s) {
  		if (isFullScreenEdit()) {
  			return;
  		}
  		
  		LogD("afterTextChanged: " + s);
  		int nModified = s.length() - mText.length();
  		if (nModified > 0) {
  			final String insertText = s.subSequence(mText.length(), s.length()).toString();
  			mMainView.insertText(insertText);
  			LogD("insertText(" + insertText + ")");
  		}
  		else {
  			for (; nModified < 0; ++nModified) {
  				mMainView.deleteBackward();
  				LogD("deleteBackward");
  			}
  		}
  		mText = s.toString();
  	}
  
  
  	public void beforeTextChanged(CharSequence s, int start, int count,
  			int after) {
  		LogD("beforeTextChanged(" + s + ")start: " + start + ",count: " + count + ",after: " + after);
  		mText = s.toString();
  	}
  	
  	
  	public void onTextChanged(CharSequence s, int start, int before, int count) {
  	}
  
  
  	public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
  		if (mMainView.getTextField() == v && isFullScreenEdit()) {
  			// user press the action button, delete all old text and insert new text
  			for (int i = mOriginText.length(); i > 0; --i) {
  				mMainView.deleteBackward();
  				LogD("deleteBackward");
  			}
  			String text = v.getText().toString();
  			
  			/*
  			 * If user input nothing, translate "\n" to engine.
  			 */
  			if (text.compareTo("") == 0){
  				text = "\n";
  			}
  			
  			if ('\n' != text.charAt(text.length() - 1)) {
  				text += '\n';
  			}
  			
  			final String insertText = text;
  			mMainView.insertText(insertText);
  			LogD("insertText(" + insertText + ")");
  		}
  		return false;
  	}
  }
  
  public class Cocos2dxGLSurfaceView extends GLSurfaceView {
      
      static private Cocos2dxGLSurfaceView mainView;
  
      private static final String TAG = Cocos2dxGLSurfaceView.class.getCanonicalName();
      private Cocos2dxRenderer mRenderer;
      
      private static final boolean debug = false;
  	
      ///////////////////////////////////////////////////////////////////////////
      // for initialize
  	///////////////////////////////////////////////////////////////////////////
      public Cocos2dxGLSurfaceView(Context context) {
          super(context);
          initView();
      }
  
      public Cocos2dxGLSurfaceView(Context context, AttributeSet attrs) {
          super(context, attrs);
          initView();
      }
      
      public void setCocos2dxRenderer(Cocos2dxRenderer renderer){
      	mRenderer = renderer;
      	setRenderer(mRenderer);
      }
  
      protected void initView() {   
          setFocusableInTouchMode(true);
          
          textInputWraper = new TextInputWraper(this);
  
          handler = new Handler(){
          	public void handleMessage(Message msg){
          		switch(msg.what){
          		case HANDLER_OPEN_IME_KEYBOARD:
          			if (null != mTextField && mTextField.requestFocus()) {
          				mTextField.removeTextChangedListener(textInputWraper);
          				mTextField.setText("");
          				String text = (String)msg.obj;
          				mTextField.append(text);
          				textInputWraper.setOriginText(text);
          				mTextField.addTextChangedListener(textInputWraper);
                          InputMethodManager imm = (InputMethodManager)mainView.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
                          imm.showSoftInput(mTextField, 0);
                          Log.d("GLSurfaceView", "showSoftInput");
          			}
          			break;
          			
          		case HANDLER_CLOSE_IME_KEYBOARD:
          			if (null != mTextField) {
          				mTextField.removeTextChangedListener(textInputWraper);
                          InputMethodManager imm = (InputMethodManager)mainView.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
                          imm.hideSoftInputFromWindow(mTextField.getWindowToken(), 0);
                          Log.d("GLSurfaceView", "HideSoftInput");
          			}
          			break;
          		}
          	}
          };
  
          mainView = this;
      }
      
      public void onPause(){
      	queueEvent(new Runnable() {
              
              public void run() {
                  mRenderer.handleOnPause();
              }
          });
      	
      	super.onPause();
      }
      
      public void onResume(){
      	super.onResume();
      	
      	queueEvent(new Runnable() {
              
              public void run() {
                  mRenderer.handleOnResume();
              }
          });
      }
  
      ///////////////////////////////////////////////////////////////////////////
      // for text input
  	///////////////////////////////////////////////////////////////////////////
      private final static int HANDLER_OPEN_IME_KEYBOARD = 2;
      private final static int HANDLER_CLOSE_IME_KEYBOARD = 3;
      private static Handler handler;
      private static TextInputWraper textInputWraper;
      private Cocos2dxEditText mTextField;
      
      public TextView getTextField() {
      	return mTextField;
      }
      
      public void setTextField(Cocos2dxEditText view) {
      	mTextField = view;
      	if (null != mTextField && null != textInputWraper) {
      		mTextField.setOnEditorActionListener(textInputWraper);
      		mTextField.setMainView(this);
      		this.requestFocus();
      	}
      }
      
      public static void openIMEKeyboard() {
      	Message msg = new Message();
      	msg.what = HANDLER_OPEN_IME_KEYBOARD;
      	msg.obj = mainView.getContentText();
      	handler.sendMessage(msg);
      	
      }
      
      private String getContentText() {
  		return mRenderer.getContentText();
  	}
  
  	public static void closeIMEKeyboard() {
      	Message msg = new Message();
      	msg.what = HANDLER_CLOSE_IME_KEYBOARD;
      	handler.sendMessage(msg);
      }
      
      public void insertText(final String text) {
          queueEvent(new Runnable() {
              
              public void run() {
                  mRenderer.handleInsertText(text);
              }
          });
      }
      
      public void deleteBackward() {
          queueEvent(new Runnable() {
              
              public void run() {
                  mRenderer.handleDeleteBackward();
              }
          });
      }
  
  	///////////////////////////////////////////////////////////////////////////
      // for touch event
      ///////////////////////////////////////////////////////////////////////////
  
      public boolean onTouchEvent(final MotionEvent event) {
      	// these data are used in ACTION_MOVE and ACTION_CANCEL
      	final int pointerNumber = event.getPointerCount();
      	final int[] ids = new int[pointerNumber];
      	final float[] xs = new float[pointerNumber];
      	final float[] ys = new float[pointerNumber];
  
      	for (int i = 0; i < pointerNumber; i++) {
              ids[i] = event.getPointerId(i);
              xs[i] = event.getX(i);
              ys[i] = event.getY(i);
          }
          
          switch (event.getAction() & MotionEvent.ACTION_MASK) {
          case MotionEvent.ACTION_POINTER_DOWN:
          	final int indexPointerDown = event.getAction() >> MotionEvent.ACTION_POINTER_ID_SHIFT;
          	final int idPointerDown = event.getPointerId(indexPointerDown);
              final float xPointerDown = event.getX(indexPointerDown);
              final float yPointerDown = event.getY(indexPointerDown);
  
              queueEvent(new Runnable() {
                  public void run() {
                      mRenderer.handleActionDown(idPointerDown, xPointerDown, yPointerDown);
                  }
              });
              break;
              
          case MotionEvent.ACTION_DOWN:
          	// there are only one finger on the screen
          	final int idDown = event.getPointerId(0);
              final float xDown = xs[0];
              final float yDown = ys[0];
              
              queueEvent(new Runnable() {
                  
                  public void run() {
                      mRenderer.handleActionDown(idDown, xDown, yDown);
                  }
              });
              break;
  
          case MotionEvent.ACTION_MOVE:
              queueEvent(new Runnable() {
                  
                  public void run() {
                      mRenderer.handleActionMove(ids, xs, ys);
                  }
              });
              break;
  
          case MotionEvent.ACTION_POINTER_UP:
          	final int indexPointUp = event.getAction() >> MotionEvent.ACTION_POINTER_ID_SHIFT;
          	final int idPointerUp = event.getPointerId(indexPointUp);
              final float xPointerUp = event.getX(indexPointUp);
              final float yPointerUp = event.getY(indexPointUp);
              
              queueEvent(new Runnable() {
                  public void run() {
                      mRenderer.handleActionUp(idPointerUp, xPointerUp, yPointerUp);
                  }
              });
              break;
              
          case MotionEvent.ACTION_UP:  
          	// there are only one finger on the screen
          	final int idUp = event.getPointerId(0);
              final float xUp = xs[0];
              final float yUp = ys[0];
              
              queueEvent(new Runnable() {
                  
                  public void run() {
                      mRenderer.handleActionUp(idUp, xUp, yUp);
                  }
              });
              break;
  
          case MotionEvent.ACTION_CANCEL:
              queueEvent(new Runnable() {
                 
                  public void run() {
                      mRenderer.handleActionCancel(ids, xs, ys);
                  }
              });
              break;
          }
        
          if (debug){
          	dumpEvent(event);
          }
          return true;
      }
      
      /*
       * This function is called before Cocos2dxRenderer.nativeInit(), so the width and height is correct.
       */
      protected void onSizeChanged(int w, int h, int oldw, int oldh){
      	this.mRenderer.setScreenWidthAndHeight(w, h);
      }
      
   @Override
      public boolean onKeyDown(int keyCode, KeyEvent event) {
      	final int kc = keyCode;
      	if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_MENU) {
      		queueEvent(new Runnable() {
  	            
  	            public void run() {
  	                mRenderer.handleKeyDown(kc);
  	            }
      		});
      		return true;
      	}
          return super.onKeyDown(keyCode, event);
      }
   
      // Show an event in the LogCat view, for debugging
      private void dumpEvent(MotionEvent event) {
         String names[] = { "DOWN" , "UP" , "MOVE" , "CANCEL" , "OUTSIDE" ,
            "POINTER_DOWN" , "POINTER_UP" , "7?" , "8?" , "9?" };
         StringBuilder sb = new StringBuilder();
         int action = event.getAction();
         int actionCode = action & MotionEvent.ACTION_MASK;
         sb.append("event ACTION_" ).append(names[actionCode]);
         if (actionCode == MotionEvent.ACTION_POINTER_DOWN
               || actionCode == MotionEvent.ACTION_POINTER_UP) {
            sb.append("(pid " ).append(
            action >> MotionEvent.ACTION_POINTER_ID_SHIFT);
            sb.append(")" );
         }
         sb.append("[" );
         for (int i = 0; i < event.getPointerCount(); i++) {
            sb.append("#" ).append(i);
            sb.append("(pid " ).append(event.getPointerId(i));
            sb.append(")=" ).append((int) event.getX(i));
            sb.append("," ).append((int) event.getY(i));
            if (i + 1 < event.getPointerCount())
               sb.append(";" );
         }
         sb.append("]" );
         Log.d(TAG, sb.toString());
      }
  }
  