Example usage for com.google.gwt.dom.client TableSectionElement as

Introduction

In this page you can find the example usage for com.google.gwt.dom.client TableSectionElement as.

Prototype

public static TableSectionElement as(Element elem) 

Source Link

Document

Assert that the given Element is compatible with this class and automatically typecast it.

Usage

From source file:org.rstudio.core.client.widget.MultiSelectCellTable.java

License:Open Source License

private void handleContextMenu(ContextMenuEvent cmEvent) {
    // bail if there are no context menu handlers
    if (handlerManager_.getHandlerCount(ContextMenuEvent.getType()) == 0)
        return;// w  w  w  .ja  va 2 s .c om

    // Get the event target.
    NativeEvent event = cmEvent.getNativeEvent();
    EventTarget eventTarget = event.getEventTarget();
    if (!Element.is(eventTarget))
        return;
    final Element target = event.getEventTarget().cast();

    // always squelch default handling (when there is a handler)
    event.stopPropagation();
    event.preventDefault();

    // find the table cell element then get its parent and cast to row
    TableCellElement tableCell = findNearestParentCell(target);
    if (tableCell == null)
        return;
    Element trElem = tableCell.getParentElement();
    if (trElem == null)
        return;
    TableRowElement tr = TableRowElement.as(trElem);

    // get the section of the row and confirm it is a tbody (as opposed
    // to a thead or tfoot)
    Element sectionElem = tr.getParentElement();
    if (sectionElem == null)
        return;
    TableSectionElement section = TableSectionElement.as(sectionElem);
    if (section != getTableBodyElement())
        return;

    // determine the row/item target
    int row = tr.getSectionRowIndex();
    T item = getVisibleItem(row);

    // if this row isn't already selected then clear the existing selection
    if (!getSelectionModel().isSelected(item))
        clearSelection();

    // select the clicked on item
    getSelectionModel().setSelected(item, true);

    // forward the event
    DomEvent.fireNativeEvent(event, handlerManager_);
}

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