Java Event.getRelatedEventTarget方法代码示例

import com.google.gwt.user.client.Event; //导入方法依赖的package包/类
public void onBrowserEvent(Event event) {
	EventTarget related = event.getRelatedEventTarget();
    switch (DOM.eventGetType(event)) {
	case Event.ONCLICK:
		if (getCell().hasId() && getCell().getType() == TimetableGridCell.Type.Class) {
			UniTimeFrameDialog.openDialog(MESSAGES.dialogSuggestions(), "suggestions.do?id=" + getCell().getId() + "&op=Reset","900","90%");
			select(false);
		}
		break;
	case Event.ONMOUSEOVER:
        if (related == null || !getElement().isOrHasChild((Element)related.cast())) {
			select(true);
        }
		break;
	case Event.ONMOUSEOUT:
        if (related == null || !getElement().isOrHasChild((Element)related.cast())) {
        	select(false);
        }
		break;
	}
   
    super.onBrowserEvent(event);
}
 

import com.google.gwt.user.client.Event; //导入方法依赖的package包/类
public void onBrowserEvent(Event event) {
	if (iDummy) return;
    Element target = DOM.eventGetTarget(event);
    boolean anchor = false;
    for (; target != null; target = DOM.getParent(target)) {
    	String tag = target.getPropertyString("tagName");
    	if ("a".equalsIgnoreCase(tag)) {
    		anchor = true;
    		break;
    	} else if ("div".equalsIgnoreCase(tag)) {
    		break;
    	}
    }
	EventTarget related = event.getRelatedEventTarget();
    switch (DOM.eventGetType(event)) {
	case Event.ONCLICK:
		select(false);
		if (!anchor) {
			MeetingClickEvent e = new MeetingClickEvent(Meeting.this);
			for (MeetingClickHandler h: iMeetingClickHandlers)
				h.onMeetingClick(e);
		}
		break;
	case Event.ONMOUSEOVER:
        if (related == null || !getElement().isOrHasChild((Element)related.cast())) {
			select(true);
        }
		break;
	case Event.ONMOUSEOUT:
        if (related == null || !getElement().isOrHasChild((Element)related.cast())) {
        	select(false);
        }
		break;
	case Event.ONMOUSEMOVE:
		int relativeX = event.getClientX() - getElement().getAbsoluteLeft() + getElement().getScrollLeft() + getElement().getOwnerDocument().getScrollLeft();
		if (relativeX < iLeft - 6 - getDay() * iCellWidth || relativeX > iLeft - 2 - getDay() * iCellWidth + iWidth) {
			select(false);
		}
		break;
	}
    super.onBrowserEvent(event);
}
 

import com.google.gwt.user.client.Event; //导入方法依赖的package包/类
private void handleEventInner(Event event) {
  switch (DOM.eventGetType(event)) {
    case Event.ONCONTEXTMENU:
      event.preventDefault();
      break;
    case Event.ONKEYPRESS:
    case Event.ONKEYDOWN: {
      // NOTE(user): It is necessary to stop propagation on the key events to
      // prevent them from leaking to the blip/wave presenters.
      int keyCode = DOM.eventGetKeyCode(event);

      // Move left/right to previous/next drop down widget
      switch (keyCode) {
        case KeyCodes.KEY_LEFT:
        case KeyCodes.KEY_RIGHT:
          handler.handleLeftRight(keyCode == KeyCodes.KEY_RIGHT);
          event.stopPropagation();
          return;
        case KeyCodes.KEY_ENTER:
          event.stopPropagation();
      }

      if (keyCode >= '1' && keyCode <= '9') {
        // TODO(danilatos): Is this ok? i18n etc?
        int index = keyCode - '1';

        if (index >= 0 && index < getItems().size()) {
          MenuItem item = getItems().get(index);
          if (item == null) {
            return;
          }

          item.getCommand().execute();
          DOM.eventPreventDefault(event);
        }
      }
      break;
    }
    case Event.ONMOUSEOUT: {
      // Need to check that we really seem to have left the menu, as
      // mouse-out events get triggered whenever the mouse moves between
      // selections in the menu.
      EventTarget target = event.getRelatedEventTarget();
      Element targetElement = Element.as(target);
      if (!getElement().isOrHasChild(targetElement)) {
        handler.handleMouseOut();
      }
      break;
    }
    case Event.ONMOUSEOVER: {
      handler.handleMouseOver();
      break;
    }
  }
}