Java Code Examples for com.google.gwt.user.client.Event#stopPropagation()

/**
 * Handles special behavior of the mouse down event.
 *
 * @param event
 */
private void handleMouseDownEvent(Event event) {
	/*
	 * Prevent the keyboard focus from leaving the textfield by preventing
	 * the default behaviour of the browser. Fixes #4285.
	 */
	if (event.getTypeInt() == Event.ONMOUSEDOWN) {
		debug("VComboBoxMultiselect: blocking mouseDown event to avoid blur");

		event.preventDefault();
		event.stopPropagation();

		/*
		 * In IE the above wont work, the blur event will still trigger. So,
		 * we set a flag here to prevent the next blur event from happening.
		 * This is not needed if do not already have focus, in that case
		 * there will not be any blur event and we should not cancel the
		 * next blur.
		 */
		if (BrowserInfo.get()
			.isIE() && this.focused) {
			this.preventNextBlurEventInIE = true;
			debug("VComboBoxMultiselect: Going to prevent next blur event on IE");
		}
	}
}
 

@Override
public void onBrowserEvent(Event event) {
	super.onBrowserEvent(event);
	boolean mustKillEvent = false;
	if (DOM.eventGetType(event) == Event.ONKEYDOWN) {
		switch (event.getKeyCode()) {
			case KeyCodes.KEY_ENTER:
				if (this.getDropdown().isOpen()) {
					((MultiSelectionHandler) this.getSelectionHandler()).onEnterKeyDown();
					mustKillEvent = true;
				}
				break;
			case KeyCodes.KEY_TAB:
			case KeyCodes.KEY_ESCAPE:
				this.getDropdown().close();
				break;
			default:
				break;
		}
	}
	if (mustKillEvent) {
		event.preventDefault();
		event.stopPropagation();
	}
}
 

/**
 * Handles special behavior of the mouse down event.
 *
 * @param event
 */
private void handleMouseDownEvent(Event event) {
	/*
	 * Prevent the keyboard focus from leaving the textfield by preventing
	 * the default behaviour of the browser. Fixes #4285.
	 */
	if (event.getTypeInt() == Event.ONMOUSEDOWN) {
		debug("VComboBoxMultiselect: blocking mouseDown event to avoid blur");

		event.preventDefault();
		event.stopPropagation();

		/*
		 * In IE the above wont work, the blur event will still trigger. So,
		 * we set a flag here to prevent the next blur event from happening.
		 * This is not needed if do not already have focus, in that case
		 * there will not be any blur event and we should not cancel the
		 * next blur.
		 */
		if (BrowserInfo.get()
			.isIE() && this.focused) {
			this.preventNextBlurEventInIE = true;
			debug("VComboBoxMultiselect: Going to prevent next blur event on IE");
		}
	}
}
 

@Override
public void onBrowserEvent(Event event) {

    int type = DOM.eventGetType(event);
    switch (type) {
        case Event.ONKEYDOWN:
            if(event.getKeyCode()== KeyCodes.KEY_ENTER)
            {
                if(handler!=null)
                    handler.onClick(null);
                event.stopPropagation();
            }
            break;
        default:
            return;

    }

}
 

@Override
public void onBrowserEvent(Event event) {
	int type = event.getTypeInt();
	Element target = event.getCurrentTarget();
	if (type == Event.ONCLICK) {
		String dataDate = target.getAttribute(InputDatePicker.ATTRIBUTE_DATA_DATE);
		String dataCursor = target.getAttribute(InputDatePicker.ATTRIBUTE_DATA_CURSOR);
		String dataYear = target.getAttribute(InputDatePicker.ATTRIBUTE_DATA_YEAR);
		if (dataDate != null && dataDate.length() > 0) {
			this.mode = Mode.CALENDAR;
			this.setValue(InputDatePicker.ATTRIBUTE_DATE_FORMAT.parse(dataDate), true);
		} else if (dataCursor != null && dataCursor.length() > 0) {
			this.mode = Mode.CALENDAR;
			this.cursor = InputDatePicker.ATTRIBUTE_DATE_FORMAT.parse(dataCursor);
			this.redraw();
		} else if (dataYear != null && dataYear.length() > 0) {
			this.openMonthOfYear(Integer.valueOf(dataYear));
		} else if (target == this.monthPickerButton) {
			if (this.mode != Mode.MONTH) {
				this.mode = Mode.MONTH;
			} else {
				this.mode = Mode.CALENDAR;
			}
			this.redraw();
		}
		event.stopPropagation();
		event.preventDefault();
	} else if (type == Event.ONKEYDOWN) {
		this.handleKeyPress(event.getKeyCode());
		event.stopPropagation();
		event.preventDefault();
	} else {
		super.onBrowserEvent(event);
	}
}
 

@Override
public void onBrowserEvent(Event event) {
	switch (DOM.eventGetType(event)) {
    case Event.ONMOUSEDOWN:
    	MouseDownEvent.fireNativeEvent(event, this);
    	event.stopPropagation();
    	event.preventDefault();
    	break;
	}
}
 

/**
 * Overrides the same method as per Label. Updates the CSS style on the parent
 * DIV, and then passes on control to the superclass implementation.
 *
 * @see com.google.gwt.user.client.ui.Label#onBrowserEvent(com.google.gwt.user.client.Event)
 */
@Override
public void onBrowserEvent(Event event) {

  switch (event.getTypeInt()) {
  case Event.ONMOUSEDOWN:
    me.replaceClassName(ButtonStyle.mouseUp, ButtonStyle.mouseDown);
    if (cancelMouseDownBubble) {
      event.stopPropagation();
    }
    if (preventMouseDownDefault) {
      event.preventDefault();
    }
    break;
  case Event.ONMOUSEUP:
    me.replaceClassName(ButtonStyle.mouseDown, ButtonStyle.mouseUp);
    break;
  case Event.ONMOUSEOVER:
    me.replaceClassName(ButtonStyle.mouseOut, ButtonStyle.mouseOver);
    break;
  case Event.ONMOUSEOUT:
    me.replaceClassName(ButtonStyle.mouseOver, ButtonStyle.mouseOut);
    break;
  }

  // Call to super to handle all event generation.
  super.onBrowserEvent(event);
}
 

@Override
public void onBrowserEvent(Event event) {
	switch (DOM.eventGetType(event)) {
	case Event.ONKEYPRESS:
		MenuItem item = iAccessKeys.get(Character.toLowerCase((char)event.getCharCode()));
		if (item != null) {
			event.stopPropagation();
			event.preventDefault();
			item.getScheduledCommand().execute();
		}
	}
	super.onBrowserEvent(event);
	
}
 

@Override
public void onBrowserEvent(Event event) { 
    if(event.getTypeInt() == Event.ONCLICK) {
    	event.stopPropagation(); 
    } 
    super.onBrowserEvent(event); 
}
 

@Override
public void onBrowserEvent(Event event) {
  if (mouseListener == null) {
    super.onBrowserEvent(event);
    return;
  }

  switch (event.getTypeInt()) {
    case Event.ONMOUSEDOWN:
      mouseListener.onMouseDown();
      break;
    case Event.ONMOUSEOUT:
      mouseListener.onMouseLeave();
      break;
    case Event.ONMOUSEOVER:
      mouseListener.onMouseEnter();
      break;
    case Event.ONMOUSEUP:
      mouseListener.onMouseUp();
      break;
    case Event.ONCLICK:
      mouseListener.onClick();
      if (stopPropagation) {
        event.stopPropagation();
      }
      break;
  }
  super.onBrowserEvent(event);
}
 

public static <T extends SignalEventImpl> T create(SignalEventFactory<T> factory,
    Event event, boolean cancelBubbleIfNullified) {
  if (hasBeenConsumed(event)) {
    return null;
  } else {
    T signal = createInner(factory, event);
    if (cancelBubbleIfNullified && signal == null) {
      event.stopPropagation();
    }
    return signal;
  }
}
 

@Override
public void onBrowserEvent(Event event) {
    super.onBrowserEvent(event);

    if (isEnabled() && event.getTypeInt() == Event.ONCONTEXTMENU) {
        if (getStyleName().contains("-header-sortable")) {
            _delegate.showSortMenu(td, cid);
        }

        event.preventDefault();
        event.stopPropagation();
    }
}
 

@Override
public void onBrowserEvent(Event event) {
  super.onBrowserEvent(event);

  // We don't want anything outside the popup to receive events
  event.stopPropagation();
}
 

@Override
public void onBrowserEvent(Event event) {
    int type = DOM.eventGetType(event);
    switch (type) {
        case Event.ONKEYDOWN:
            if (event.getKeyCode() == KeyCodes.KEY_ENTER) {
                tabLayout.selectTab(index);
                event.stopPropagation();
            }
            break;
        default:
            break;
    }
}
 

@Override
protected boolean handleKeyboardEvents(Event event) {
    int type = DOM.eventGetType(event);
    // Synthesize clicks based on keyboard events AFTER the normal key
    // handling.
    if ((event.getTypeInt() & Event.KEYEVENTS) != 0) {
        switch (type) {
            case Event.ONKEYDOWN:
                // Button should not react on shortcuts with ENTER and SPACE
                if (isShortcut(event)
                        && (event.getKeyCode() == KeyCodes.KEY_ENTER
                        || event.getKeyCode() == KeyCodes.KEY_SPACE)) {
                    return true;
                }
                // Stop propagation when the user starts pressing a button that
                // we are handling to prevent actions from getting triggered
                if (event.getKeyCode() == KeyCodes.KEY_SPACE) {
                    isFocusing = true;
                    event.preventDefault();
                    event.stopPropagation();
                    return true;
                } else if (event.getKeyCode() == KeyCodes.KEY_ENTER) {
                    isFocusing = true;
                    event.preventDefault();
                    event.stopPropagation();
                    return true;
                }
                break;

            // CAUTION IE sometimes does not generate ONKEYPRESS for ENTER, so we override default Vaadin behavior
            case Event.ONKEYUP:
                if (isFocusing) {
                    if (event.getKeyCode() == KeyCodes.KEY_SPACE) {
                        isFocusing = false;
                        onClick();
                        event.stopPropagation();
                        event.preventDefault();
                        return true;
                    } else if (event.getKeyCode() == KeyCodes.KEY_ENTER) {
                        isFocusing = false;
                        onClick();
                        event.stopPropagation();
                        event.preventDefault();
                        return true;
                    }
                } else if (isShortcut(event)
                        && (event.getKeyCode() == KeyCodes.KEY_ENTER
                        || event.getKeyCode() == KeyCodes.KEY_SPACE)) {
                    return true;
                }
                break;
            case Event.ONKEYPRESS: {
                // Button should not react on shortcuts with ENTER and SPACE
                if (isShortcut(event)
                        && (event.getKeyCode() == KeyCodes.KEY_ENTER
                        || event.getKeyCode() == KeyCodes.KEY_SPACE)) {
                    return true;
                }
            }
        }
    }

    return false;
}
 

protected void preventEvent(Event event) {
    event.stopPropagation();
    event.preventDefault();
}
 

private void killEvent(Event event) {
	event.preventDefault();
	event.stopPropagation();
}
 

@Override
public void onBrowserEvent(Event event) {
	if (Event.ONMOUSEMOVE == DOM.eventGetType(event) && !iSelection.isActive() && iMoving != null) {
		iMoving.onBrowserEvent(event);
		if (iMoving.iCursor != null)
			getElement().getStyle().setCursor(iMoving.iCursor);
		return;
	}

	double x = event.getClientX() - getAbsoluteLeft() + Window.getScrollLeft();
	double y = event.getClientY() - getAbsoluteTop() + Window.getScrollTop();

	int slot = 3 * Math.min(Math.max(0, (int)Math.round(4 * (y - 1 + iStart * iCellHeight) / iCellHeight)), 96);
	int day = Math.min(Math.max(0, (int)Math.floor((x - 2) / iCellWidth)), iDays.length - 1);
	int weeks = (isSingleRoom() ? iSelectedWeeks.size() : iRoomResources.size());
	int week = Math.min(Math.max(0, (int)Math.floor(weeks * (x - 2 - iCellWidth * day) / (iCellWidth - 6))), weeks - 1);
	if (iRTL) {
		day = iDays.length - day - 1;
		week = weeks - week - 1;
	}
	int dayOfWeek = iDays[day];
	int h = slot / 12;
	int m = 5 * (slot % 12);
	String time = (CONSTANTS.useAmPm() ? (h == 0 ? "12": h <= 12 ? h : h-12) : h) + ":" + (m < 10 ? "0" : "") + m + (CONSTANTS.useAmPm() ? (h <= 11 ? "a" : "p") : "");
	
	int dayInv = (iDayOfWeeks == null ? (7 + dayOfWeek - iPropertiesProvider.getFirstDayOfWeek()) % 7 : dayOfWeek);
	String text = (iDayOfWeeks == null ? CONSTANTS.longDays()[dayOfWeek] : iDayOfWeeks.get(dayOfWeek)) + " " + (isSingleRoom() ? iSelectedWeeks.get(week) : iSelectedWeeks.get(0)).getDayNames().get(dayInv) +
			" " + time + (isSingleRoom() ? "" : " " + iRoomResources.get(week).getName());
	ResourceInterface room = (isSingleRoom() ? iRoomResources.get(0) : iRoomResources.get(week));
	iPopup.setPopupPosition(event.getClientX() + Window.getScrollLeft(), event.getClientY() + Window.getScrollTop());
	
	getElement().getStyle().setCursor(Cursor.CROSSHAIR);
	
	switch (DOM.eventGetType(event)) {
	case Event.ONMOUSEDOWN:
		iSelection.setStart(dayOfWeek, slot, week);
		iSelection.setEnd(dayOfWeek, slot, week);
		iSelection.setVisible(true);
		iSelection.setActive(true);
		break;
	case Event.ONMOUSEMOVE:
		iSelection.setEnd(dayOfWeek, slot, week);
		if (!iPopup.isShowing()) iPopup.show();
		if (!room.getId().equals(iLastRoomId)) {
			RoomHint.showHint(iPopup.getElement(), room.getId(), "", (room.hasDistance() ? String.valueOf(Math.round(room.getDistance())) : ""), false);
			iLastRoomId = room.getId();
		}
		break;
	case Event.ONMOUSEUP:
		onMouseUp();
		break;
	case Event.ONMOUSEOVER:
		if (!iPopup.isShowing() && (iSelection.isActive() || iMoving == null)) iPopup.show();
		if (iSelection.isActive() && !iSelection.isVisible()) {
			iSelection.setVisible(true);					
		}
		if (!room.getId().equals(iLastRoomId)) {
			RoomHint.showHint(iPopup.getElement(), room.getId(), "", (room.hasDistance() ? String.valueOf(Math.round(room.getDistance())) : ""), false);
			iLastRoomId = room.getId();
		}
		break;
	case Event.ONMOUSEOUT:
		Element child = DOM.eventGetToElement(event);
		if (child != null && !getElement().isOrHasChild(child)) {
			if (iPopup.isShowing()) {
				iPopup.hide();
				RoomHint.hideHint(); iLastRoomId = null;
			}
			iSelection.setVisible(false);
		}
		/*
		if (iSelection.isActive() && !DOM.isOrHasChild(TimeGrid.this.getElement(), DOM.eventGetToElement(event))) {
			iSelection.setActive(false);
		}
		*/
		break;
	}
	
	iHint.setText((iSelection.isVisible() && iSelection.isActive() ? iSelection.toString() : text));
	
	event.preventDefault();
	event.stopPropagation();
}
 

@Override
protected boolean handleKeyboardEvents(Event event) {
    int type = DOM.eventGetType(event);
    // Synthesize clicks based on keyboard events AFTER the normal key
    // handling.
    if ((event.getTypeInt() & Event.KEYEVENTS) != 0) {
        switch (type) {
            case Event.ONKEYDOWN:
                // Button should not react on shortcuts with ENTER and SPACE
                if (isShortcut(event)
                        && (event.getKeyCode() == KeyCodes.KEY_ENTER
                        || event.getKeyCode() == KeyCodes.KEY_SPACE)) {
                    return true;
                }
                // Stop propagation when the user starts pressing a button that
                // we are handling to prevent actions from getting triggered
                if (event.getKeyCode() == KeyCodes.KEY_SPACE) {
                    isFocusing = true;
                    event.preventDefault();
                    event.stopPropagation();
                    return true;
                } else if (event.getKeyCode() == KeyCodes.KEY_ENTER) {
                    isFocusing = true;
                    event.stopPropagation();
                    return true;
                } else if (event.getKeyCode() == KeyCodes.KEY_DOWN) {
                    isFocusing = true;
                    event.stopPropagation();
                }
                break;

            // CAUTION IE sometimes does not generate ONKEYPRESS for ENTER, so we override default Vaadin behavior
            case Event.ONKEYUP:
                if (isFocusing) {
                    if (event.getKeyCode() == KeyCodes.KEY_SPACE) {
                        isFocusing = false;
                        onClick();
                        event.stopPropagation();
                        event.preventDefault();
                        return true;
                    } else if (event.getKeyCode() == KeyCodes.KEY_ENTER) {
                        isFocusing = false;
                        onClick();
                        event.stopPropagation();
                        event.preventDefault();
                        return true;
                    } else if (event.getKeyCode() == KeyCodes.KEY_DOWN) {
                        isFocusing = false;
                        onClick();
                        event.stopPropagation();
                        event.preventDefault();
                        return true;
                    }
                } else if (isShortcut(event)
                        && (event.getKeyCode() == KeyCodes.KEY_ENTER
                        || event.getKeyCode() == KeyCodes.KEY_SPACE)) {
                    return true;
                }
                break;
            case Event.ONKEYPRESS: {
                // Button should not react on shortcuts with ENTER and SPACE
                if (isShortcut(event)
                        && (event.getKeyCode() == KeyCodes.KEY_ENTER
                        || event.getKeyCode() == KeyCodes.KEY_SPACE)) {
                    return true;
                }
            }
        }
    }

    return false;
}
 

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;
    }
  }
}