Java ValueUpdater类代码示例

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
@SuppressWarnings("deprecation")
public void onBrowserEvent(Context context,
		Element parent, InlineHyperlink value, NativeEvent nativeEvent,
		ValueUpdater<InlineHyperlink> valueUpdater) {
	super.onBrowserEvent(context, parent, value, nativeEvent, valueUpdater);
	Event event = Event.as(nativeEvent);
	if(DOM.eventGetType(event) == Event.ONCLICK && impl.handleAsClick(event)) {
		Element target = Element.as(event.getEventTarget());
		Element child = parent.getFirstChildElement();
		if(child.isOrHasChild(target)) {
			History.newItem(value.getTargetHistoryToken());
			DOM.eventPreventDefault(event);
		}
	}
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
@SuppressWarnings("deprecation")
public void onBrowserEvent(Context context, Element parent, C value,
		NativeEvent nativeEvent, ValueUpdater<C> valueUpdater) {
	Event event = Event.as(nativeEvent);
	if(DOM.eventGetType(event) == Event.ONCLICK && impl.handleAsClick(event)) {
		Element target = Element.as(event.getEventTarget());
		// first child is outer div (see IconCellDecorator)
		Element child = parent.getFirstChildElement();
		if(child != null) {
			// next child is div containing icon image
			child = child.getFirstChildElement();
			if(child != null && child.isOrHasChild(target)) {
				delegate.execute(value);
				DOM.eventPreventDefault(event);
			} else {
				super.onBrowserEvent(context, parent, value, nativeEvent, valueUpdater);
			}
		}
	}
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
/**
 * Called when an event occurs in a rendered instance of this Cell. The
 * parent element refers to the element that contains the rendered cell, NOT
 * to the outermost element that the Cell rendered.
 */
@Override
public void onBrowserEvent(com.google.gwt.cell.client.Cell.Context context,
		Element parent, String value, NativeEvent event,
		com.google.gwt.cell.client.ValueUpdater<String> valueUpdater) {

	// Let AbstractCell handle the keydown event.
	super.onBrowserEvent(context, parent, value, event, valueUpdater);

	// Handle the click event.
	if ("click".equals(event.getType())) {

		// Ignore clicks that occur outside of the outermost element.
		EventTarget eventTarget = event.getEventTarget();

		if (parent.isOrHasChild(Element.as(eventTarget))) {
			Element el = Element.as(eventTarget);
			if (el.getNodeName().equalsIgnoreCase("IMG")) {
				doAction(el.getParentElement().getAttribute("name"),
						valueUpdater);
			}
		}
	}
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
public void onBrowserEvent(final Context context,
                           final Element parent,
                           final HyperLink value,
                           final NativeEvent event,
                           final ValueUpdater<HyperLink> valueUpdater) {
    super.onBrowserEvent(context,
                         parent,
                         value,
                         event,
                         valueUpdater);
    if (CLICK.equals(event.getType())) {
        onEnterKeyDown(context,
                       parent,
                       value,
                       event,
                       valueUpdater);
    }
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
protected void onEnterKeyDown(final Context context,
                              final Element parent,
                              final HyperLink value,
                              final NativeEvent event,
                              final ValueUpdater<HyperLink> valueUpdater) {
    final Element element = event.getEventTarget().cast();
    if (!parent.getFirstChildElement().equals(element)) {
        return;
    }
    event.preventDefault();
    event.stopPropagation();
    if (valueUpdater != null) {
        valueUpdater.update(value);
    }
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
public void onBrowserEvent(final Context context,
                           final Element parent,
                           final String value,
                           final NativeEvent event,
                           final ValueUpdater<String> valueUpdater) {
    super.onBrowserEvent(context,
                         parent,
                         value,
                         event,
                         valueUpdater);
    if (CLICK.equals(event.getType())) {
        EventTarget eventTarget = event.getEventTarget();
        if (!Element.is(eventTarget)) {
            return;
        }
        if (parent.getFirstChildElement().isOrHasChild(Element.as(eventTarget))) {
            // Ignore clicks that occur outside of the main element.
            onEnterKeyDown(context,
                           parent,
                           value,
                           event,
                           valueUpdater);
        }
    }
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
public void onBrowserEvent(Context context,
                           Element parent,
                           String value,
                           NativeEvent event,
                           ValueUpdater<String> valueUpdater) {

    if (selectable) {
        String eventType = event.getType();
        switch (eventType) {

            case MOUSEOVER:
                parent.getStyle().setCursor(Style.Cursor.POINTER);
                break;

            case CLICK:
                int rowIndexInPage = context.getIndex() - table.getPageStart();
                getPresenter().selectCell(columnId, rowIndexInPage);
                break;
        }
    }
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
public void onBrowserEvent(Context context, Element parent, C value, NativeEvent event, ValueUpdater<C> valueUpdater) {
	if (Element.is(event.getEventTarget()) && getCellParent(parent).isOrHasChild(Element.as(event.getEventTarget()))) {
		if (cell.getConsumedEvents().contains(event.getType())) {
			cell.onBrowserEvent(context, getCellParent(parent), value, event, valueUpdater);
		}
	} else {
		onNonCellBrowserEvent(context, parent, value, event, valueUpdater);
	}
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
protected void onNonCellBrowserEvent(Cell.Context context, Element parent, C value, NativeEvent event, ValueUpdater<C> valueUpdater) {
	if (treeProvider != null) {
		if (BrowserEvents.MOUSEDOWN.equals(event.getType())) {
			T toBeToggled = treeProvider.getList().get(context.getIndex());
			treeProvider.getList().set(context.getIndex(), toBeToggled);
			if (isExpanded(context)) {
				treeProvider.collapse(toBeToggled);
			} else {
				treeProvider.expand(toBeToggled);
			}
		} else if (cell.getConsumedEvents().contains(event.getType())) {
			cell.onBrowserEvent(context, getCellParent(parent), value, event, valueUpdater);
		}
	}
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
protected void onEnterKeyDown(Context context, final Element parent, Date value,
    NativeEvent event, ValueUpdater<Date> valueUpdater) {
  this.lastKey = context.getKey();
  this.lastParent = parent;
  this.lastValue = value;
  this.valueUpdater = valueUpdater;

  Date viewData = getViewData(context.getKey());
  Date date = (viewData == null) ? value : viewData;
  datePicker.setCurrentMonth(date);
  datePicker.setValue(date);
  panel.setPopupPositionAndShow(new PositionCallback() {
    public void setPosition(int offsetWidth, int offsetHeight) {
      panel.setPopupPosition(parent.getAbsoluteLeft() + offsetX,
          parent.getAbsoluteTop() + offsetY);
    }
  });
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
public void onBrowserEvent(Context context, Element parent, String value,
    NativeEvent event, ValueUpdater<String> valueUpdater) {
  ViewData viewData = getViewData(context.getKey());
  if (viewData != null && viewData.isEditing()) {
    // Handle the edit event.
    editEvent(context, parent, viewData, event, valueUpdater);
  } else {
    String type = event.getType();
    int keyCode = event.getKeyCode();
    boolean enterPressed = "keyup".equals(type)
        && keyCode == KeyCodes.KEY_ENTER;
    if ("click".equals(type) || enterPressed) {
      // Go into edit mode.
      if (viewData == null) {
        viewData = new ViewData(value);
        setViewData(context.getKey(), viewData);
      } else {
        viewData.setEditing(true);
      }
      edit(context, parent, value);
    }
  }
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
public void onBrowserEvent(Context context, Element parent, T value,
                              NativeEvent event, ValueUpdater<T> valueUpdater) {
   int x = event.getClientX();
   int y = event.getClientY();
   Element child = parent.getFirstChildElement();
   if (x >= child.getAbsoluteLeft() && x <= child.getAbsoluteRight() &&
            y >= child.getAbsoluteTop() && y <= child.getAbsoluteBottom()) {
      String type = event.getType();
      int keyCode = event.getKeyCode();
      boolean enterPressed = KEYUP.equals(type)
          && keyCode == KeyCodes.KEY_ENTER;
      if ((CLICK.equals(type) || enterPressed) && validator.canPerformAction(value)) {
         setValue(context, parent, value);
         itemClicked(value);
      }
   }
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
protected void finishEditing(Element parent, String value, Object key,
    ValueUpdater<String> valueUpdater) {
  String newValue = getInputElement(parent).getValue();

  ViewData vd = getViewData(key);
  if (vd == null) {
    vd = new ViewData(value);
    setViewData(key, vd);
  }
  vd.setCurrentValue(newValue);

  if (valueUpdater != null && !vd.getCurrentValue().equals(vd.getLastValue())) {
    vd.setLastValue(newValue);
    valueUpdater.update(newValue);
  }

  super.finishEditing(parent, newValue, key, valueUpdater);
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public void onBrowserEvent(Context context, Element parent, T value,
        NativeEvent event, ValueUpdater<T> valueUpdater) {
    super.onBrowserEvent(context, parent, value, event, valueUpdater);
    String type = event.getType();
    if (BrowserEvents.CHANGE.equals(type)) {
        Object key = context.getKey();
        SelectElement select = parent.getFirstChild().cast();
        T newValue = getValueAtIndex((K) key, select.getSelectedIndex());
        setViewData(key, newValue);
        finishEditing(parent, newValue, key, valueUpdater);
        if (valueUpdater != null) {
            valueUpdater.update(newValue);
        }
    }
}
 

import com.google.gwt.cell.client.ValueUpdater; //导入依赖的package包/类
@Override
public void onBrowserEvent(Context context, Element parent, T value,
    NativeEvent event, ValueUpdater<T> valueUpdater) {
  super.onBrowserEvent(context, parent, value, event, valueUpdater);
  String type = event.getType();
  if (BrowserEvents.CHANGE.equals(type)) {
    Object key = context.getKey();
    SelectElement select = parent.getFirstChild().cast();
    T newValue = options.get(select.getSelectedIndex());
    //setViewData(key, newValue);
    finishEditing(parent, newValue, key, valueUpdater);
    if (valueUpdater != null) {
      valueUpdater.update(newValue);
    }
  }
}