How to use

removeAttribute

method

in

com.google.gwt.user.client.Element

/**
 * Sets the title associated with this object. The title is the 'tool-tip'
 * displayed to users when they hover over the object.
 * 
 * @param title the object's new title
 */
public void setTitle(String title) {
 if (title == null || title.length() == 0) {
  getElement().removeAttribute("title");
 } else {
  getElement().setAttribute("title", title);
 }
}

/**
 * Creates an empty TextBox.
 */
public TextBox() {
  super();
  getElement().removeAttribute("class");
}

 /** Removes mark from text box. */
 public void unmark() {
  getElement().removeAttribute("success");
  getElement().removeAttribute("error");
 }
}

/**
 * Removes the attribute from the UiObject
 *
 * @param attributeName attribute name
 */
public void removeAttribute(final String attributeName) {
  uiObject.getElement().removeAttribute(attributeName);
}

public void setDataLoadingText(final String loadingText) {
  if (loadingText != null) {
    getElement().setAttribute(Attributes.DATA_LOADING_TEXT, loadingText);
  } else {
    getElement().removeAttribute(Attributes.DATA_LOADING_TEXT);
  }
}

@Override
public void setDataParent(final String dataParent) {
  if (dataParent != null) {
    uiObject.getElement().setAttribute(Attributes.DATA_PARENT, dataParent);
  } else {
    uiObject.getElement().removeAttribute(Attributes.DATA_PARENT);
  }
}

@Override
public void wrapText(boolean wrap) {
 if (wrap) {
  consoleLines.getElement().setAttribute("wrap", "");
 } else {
  consoleLines.getElement().removeAttribute("wrap");
 }
}

@Override
public void enableStopButton(boolean enable) {
 if (enable) {
  stopProcessButton.getElement().removeAttribute("disabled");
 } else {
  stopProcessButton.getElement().setAttribute("disabled", "");
 }
}

public void setAttribute(String value) {
  if (value != null) {
    uiObject.getElement().setAttribute(attribute, value);
  } else {
    uiObject.getElement().removeAttribute(attribute);
  }
}

@Override
public void setDataTarget(final String dataTarget) {
  if (dataTarget != null) {
    uiObject.getElement().setAttribute(Attributes.DATA_TARGET, dataTarget);
  } else {
    uiObject.getElement().removeAttribute(Attributes.DATA_TARGET);
  }
}

public void setFor(final String f) {
  if (f != null) {
    getElement().setAttribute(Attributes.FOR, f);
  } else {
    getElement().removeAttribute(Attributes.FOR);
  }
}

@Override
public void setDataParent(final String dataParent) {
  if (dataParent != null) {
    uiObject.getElement().setAttribute(Attributes.DATA_PARENT, dataParent);
  } else {
    uiObject.getElement().removeAttribute(Attributes.DATA_PARENT);
  }
}

@Override
public void setDataSpy(final Spy spy) {
  if (spy != null) {
    uiObject.getElement().setAttribute(Attributes.DATA_SPY, spy.getSpy());
  } else {
    uiObject.getElement().removeAttribute(Attributes.DATA_SPY);
  }
}

/** {@inheritDoc} */
@Override
public void setFocus(boolean focused) {
 if (focusedWidget != null) {
  focusedWidget.getElement().removeAttribute("focused");
 }
 focusedWidget = partStackContent.getVisibleWidget();
 if (focused && focusedWidget != null) {
  focusedWidget.getElement().setAttribute("focused", "");
 }
}

@Override
public void setDataSpy(final Spy spy) {
  if (spy != null) {
    uiObject.getElement().setAttribute(Attributes.DATA_SPY, spy.getSpy());
  } else {
    uiObject.getElement().removeAttribute(Attributes.DATA_SPY);
  }
}

/**
 * Set/unset the data-toggle behavior.
 * 
 * @param type
 */
public void setToggle(ToggleType type) {
  if (type == null || type == ToggleType.NONE) {
    getElement().removeAttribute(Constants.DATA_TOGGLE);
    return;
  }
  getElement().setAttribute(Constants.DATA_TOGGLE, type.get());
}

public void setPrev(final boolean prev) {
  getElement().removeAttribute(Attributes.DATA_SLIDE);
  getElement().setAttribute(Attributes.DATA_SLIDE, Carousel.PREV);
  StyleHelper.toggleStyleName(this, prev, Styles.LEFT);
  icon.addStyleName(Styles.ICON_PREV);
}

public void setNext(final boolean next) {
  getElement().removeAttribute(Attributes.DATA_SLIDE);
  getElement().setAttribute(Attributes.DATA_SLIDE, Carousel.NEXT);
  StyleHelper.toggleStyleName(this, next, Styles.RIGHT);
  icon.addStyleName(Styles.ICON_NEXT);
}

@Override
public void setEnabled(final boolean enabled) {
  if (enabled) {
    uiObject.removeStyleName(Styles.DISABLED);
    uiObject.getElement().removeAttribute(DISABLED);
  } else {
    uiObject.addStyleName(Styles.DISABLED);
    uiObject.getElement().setAttribute(DISABLED, "");
  }
}

private void applyEnabled(boolean enabled, UIObject obj) {
  if (enabled) {
    obj.removeStyleName(CssName.DISABLED);
    obj.getElement().removeAttribute(DISABLED);
  } else {
    obj.addStyleName(CssName.DISABLED);
    obj.getElement().setAttribute(DISABLED, "");
  }
  updateWaves(enabled, obj);
}