Android Open Source - aoc-keyboard Keyboard

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License

The source code is released under:

GNU General Public License

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Java Source Code

package com.thiago.aockeyboard.keyboard;
/* w  w  w.  ja v  a 2s  .c o  m*/
import java.util.Collection;
import java.util.HashSet;

import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;

import com.thiago.aockeyboard.client.TCPClient;

/**
 * Class to manager the keyboard to the SecondScreen application
 * 
 * @author iglesonFreire
 */
public class Keyboard {

  private EditText editText;
  private boolean initialized;
  private InputMethodManager imm;
  private Collection<OnSendListener> listenersSend;
  private Collection<OnKeyClickListener> listenersKey;

  public Keyboard(EditText editText, InputMethodManager imm) {
    this.editText = editText;
    this.editText.setOnKeyListener(new View.OnKeyListener() {
      private boolean warned = false;

      @Override
      public boolean onKey(View v, int keyCode, KeyEvent event) {
        if (!warned) {
          warnsOnKeyListeners(keyCode);
        }
        warned = !warned;
        return false;
      }
    });
    this.imm = imm;
    listenersSend = new HashSet<OnSendListener>();
    listenersKey = new HashSet<OnKeyClickListener>();
    this.initialized = false;
  }

  /**
   * Init the keyboard, making the EditText visible and calling the keyboard.
   * 
   * @throws IllegalStateException
   *             throws this exception if this keyboard is already
   *             initialized.
   */
  public void init() {
    if (!this.initialized) {
      this.editText.setVisibility(View.VISIBLE);
      this.imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
      this.initialized = true;
    } else {
      throw new IllegalStateException(
          "the keyboard is already initialized");
    }
  }

  /**
   * Finish the keyboard, making the EditText invisible and calling back the
   * keyboard.
   * 
   * @throws IllegalStateException
   *             throws this exception if this keyboard isn't initialized.
   */
  public void finish() {
    if (this.initialized) {
      this.imm.hideSoftInputFromWindow(this.editText.getWindowToken(), 0);
      this.editText.setText("");
      this.editText.setVisibility(View.INVISIBLE);
      this.initialized = false;
    } else {
      throw new IllegalStateException("the keyboard isn't initialized");
    }
  }

  /**
   * Send the data from the asynchronous server.
   */
  public void send() {
    if (this.initialized) {
      TCPClient.getInstace().send(this.editText.getText().toString());
      warnsOnSendListeners();
    } else {
      throw new IllegalStateException(
          "the keyboard is already initialized");
    }
  }

  public void addOnSendListener(OnSendListener listener) {
    this.listenersSend.add(listener);
  }

  public void addOnKeyClickListener(OnKeyClickListener listener) {
    this.listenersKey.add(listener);
  }

  private void warnsOnSendListeners() {
    for (OnSendListener listener : listenersSend) {
      listener.warns(this.editText.getText().toString());
    }
  }

  private void warnsOnKeyListeners(int keyCode) {
    for (OnKeyClickListener listener : listenersKey) {
      listener.warns(keyCode);
    }
  }
}

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