Android Open Source - jmini3d Input Controller

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Back to project page jmini3d.
License

The source code is released under:
Copyright 2012 Mobialia http://www.mobialia.com/ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to ...
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Java Source Code

package jmini3d.gwt.input;
/*from ww w  .j  ava2  s.  c  om*/
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Touch;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.EventListener;

import java.util.HashMap;

import jmini3d.input.KeyListener;
import jmini3d.input.TouchListener;
import jmini3d.input.TouchPointer;

public class InputController implements EventListener {

  static final Integer MOUSE_POINTER_ID = 666;

  TouchListener touchListener;
  KeyListener keyListener;

  TouchPointer mousePointer;

  HashMap<Integer, TouchPointer> pointers = new HashMap<Integer, TouchPointer>();
  HashMap<Integer, TouchPointer> pointersAux = new HashMap<Integer, TouchPointer>();

  Element element;
  int eventBits;

  public float scale = 1;

  public InputController(final Element element) {
    this.element = element;
    Event.setEventListener(element, this);

    mousePointer = new TouchPointer();
    eventBits = 0;
  }

  public void setScale(float scale) {
    this.scale = scale;
  }

  public void setTouchListener(TouchListener touchListener) {
    int mask = Event.ONMOUSEDOWN | Event.ONMOUSEUP | Event.ONMOUSEMOVE | Event.ONMOUSEOUT | //
        Event.ONTOUCHSTART | Event.ONTOUCHMOVE | Event.ONTOUCHEND | Event.ONTOUCHCANCEL;

    if (touchListener != null) {
      eventBits |= mask;
    } else {
      eventBits &= ~mask;
    }
    Event.sinkEvents(element, eventBits);

    this.touchListener = touchListener;
  }

  public void setKeyListener(KeyListener keyListener) {
    int mask = Event.ONKEYDOWN | Event.ONKEYUP | Event.ONMOUSEWHEEL;

    if (keyListener != null) {
      eventBits |= mask;
    } else {
      eventBits &= ~mask;
    }
    Event.sinkEvents(element, eventBits);

    this.keyListener = keyListener;
  }

  @Override
  public void onBrowserEvent(Event event) {
    if ((event.getTypeInt() & Event.ONMOUSEDOWN) != 0) {
      mousePointer.x = (int) (scale * (event.getClientX() - element.getAbsoluteLeft()));
      mousePointer.y = (int) (scale * (event.getClientY() - element.getAbsoluteTop()));
      mousePointer.status = TouchPointer.TOUCH_DOWN;
      pointers.put(MOUSE_POINTER_ID, mousePointer);
      touchListener.onTouch(pointers);
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONMOUSEDOWN) != 0) {
      mousePointer.x = (int) (scale * (event.getClientX() - element.getAbsoluteLeft()));
      mousePointer.y = (int) (scale * (event.getClientY() - element.getAbsoluteTop()));
      mousePointer.status = TouchPointer.TOUCH_MOVE;

      if (pointers.containsKey(MOUSE_POINTER_ID)) {
        touchListener.onTouch(pointers);
      }
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONMOUSEMOVE) != 0) {
      mousePointer.x = (int) (scale * (event.getClientX() - element.getAbsoluteLeft()));
      mousePointer.y = (int) (scale * (event.getClientY() - element.getAbsoluteTop()));
      mousePointer.status = TouchPointer.TOUCH_MOVE;

      if (pointers.containsKey(MOUSE_POINTER_ID)) {
        touchListener.onTouch(pointers);
      }
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONMOUSEUP) != 0) {
      mousePointer.x = (int) (scale * (event.getClientX() - element.getAbsoluteLeft()));
      mousePointer.y = (int) (scale * (event.getClientY() - element.getAbsoluteTop()));
      mousePointer.status = TouchPointer.TOUCH_UP;

      if (pointers.containsKey(MOUSE_POINTER_ID)) {
        touchListener.onTouch(pointers);
        pointers.remove(MOUSE_POINTER_ID);
      }
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONMOUSEOUT) != 0) {
      mousePointer.x = (int) (scale * (event.getClientX() - element.getAbsoluteLeft()));
      mousePointer.y = (int) (scale * (event.getClientY() - element.getAbsoluteTop()));
      mousePointer.status = TouchPointer.TOUCH_UP;

      if (pointers.containsKey(MOUSE_POINTER_ID)) {
        touchListener.onTouch(pointers);
        pointers.remove(MOUSE_POINTER_ID);
      }
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONTOUCHSTART) != 0) {
      for (int i = 0; i < event.getChangedTouches().length(); i++) {
        Touch touch = event.getChangedTouches().get(i);
        TouchPointer pointer = pointersAux.get(touch.getIdentifier());
        if (pointer == null) {
          pointer = new TouchPointer();
        }
        pointer.x = (int) (scale * (touch.getClientX() - element.getAbsoluteLeft()));
        pointer.y = (int) (scale * (touch.getClientY() - element.getAbsoluteTop()));
        pointer.status = TouchPointer.TOUCH_DOWN;
        pointers.put(touch.getIdentifier(), pointer);
      }
      touchListener.onTouch(pointers);

      for (TouchPointer pointer : pointers.values()) {
        pointer.status = TouchPointer.TOUCH_MOVE;
      }
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONTOUCHMOVE) != 0) {
      for (int i = 0; i < event.getChangedTouches().length(); i++) {
        Touch touch = event.getChangedTouches().get(i);
        TouchPointer pointer = pointers.get(touch.getIdentifier());
        pointer.x = (int) (scale * (touch.getClientX() - element.getAbsoluteLeft()));
        pointer.y = (int) (scale * (touch.getClientY() - element.getAbsoluteTop()));
        pointer.status = TouchPointer.TOUCH_MOVE;
      }
      touchListener.onTouch(pointers);
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONTOUCHEND) != 0) {
      for (Integer key : pointers.keySet()) {
        if (!MOUSE_POINTER_ID.equals(key)) {
          TouchPointer pointer = pointers.get(key);
          pointer.status = TouchPointer.TOUCH_UP;
        }
      }

      for (int i = 0; i < event.getTouches().length(); i++) {
        Touch touch = event.getTouches().get(i);
        TouchPointer pointer = pointers.get(touch.getIdentifier());
        pointer.status = TouchPointer.TOUCH_MOVE;
      }
      touchListener.onTouch(pointers);

      for (Integer key : pointers.keySet()) {
        if (!MOUSE_POINTER_ID.equals(key)) {
          TouchPointer pointer = pointers.get(key);
          if (pointer.status == TouchPointer.TOUCH_UP) {
            pointers.remove(key);
          }
        }
      }
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONTOUCHCANCEL) != 0) {
      mousePointer.status = TouchPointer.TOUCH_UP;
      touchListener.onTouch(pointers);
      event.preventDefault();
    }
    if ((event.getTypeInt() & Event.ONKEYDOWN) != 0 || (event.getTypeInt() & Event.ONKEYUP) != 0) {
      int key = 0;
      switch (event.getKeyCode()) {
        case KeyCodes.KEY_UP:
          key = KeyListener.KEY_UP;
          break;
        case KeyCodes.KEY_DOWN:
          key = KeyListener.KEY_DOWN;
          break;
        case KeyCodes.KEY_LEFT:
          key = KeyListener.KEY_LEFT;
          break;
        case KeyCodes.KEY_RIGHT:
          key = KeyListener.KEY_RIGHT;
          break;
        case KeyCodes.KEY_ENTER:
          key = KeyListener.KEY_ENTER;
          break;
        case KeyCodes.KEY_ESCAPE:
          key = KeyListener.KEY_BACK;
          break;
        case KeyCodes.KEY_BACKSPACE:
          key = KeyListener.KEY_BACKSPACE;
          break;
      }
      if (key != 0) {
        boolean managed = false;
        if ((event.getTypeInt() & Event.ONKEYDOWN) != 0) {
          managed = keyListener.onKeyDown(key);
        }
        if ((event.getTypeInt() & Event.ONKEYUP) != 0) {
          managed = keyListener.onKeyUp(key);
        }
        if (managed) {
          event.preventDefault();
        }
      }
    }
    if ((event.getTypeInt() & Event.ONMOUSEWHEEL) != 0) {
      boolean managed = false;
      if (event.getMouseWheelVelocityY() > 0) {
        managed |= keyListener.onKeyDown(KeyListener.KEY_ZOOM_OUT);
        managed |= keyListener.onKeyUp(KeyListener.KEY_ZOOM_OUT);
      } else {
        managed |= keyListener.onKeyDown(KeyListener.KEY_ZOOM_IN);
        managed |= keyListener.onKeyUp(KeyListener.KEY_ZOOM_IN);
      }
      if (managed) {
        event.preventDefault();
      }
    }
  }

}
Java Source Code List
