com.googlecode.gwt.test.internal.patchers.HTMLTablePatcher Maven / Gradle / Ivy

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package com.googlecode.gwt.test.internal.patchers;

import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.HTMLTable;
import com.googlecode.gwt.test.patchers.PatchClass;
import com.googlecode.gwt.test.patchers.PatchMethod;
import com.googlecode.gwt.test.utils.GwtReflectionUtils;

@PatchClass(HTMLTable.class)
class HTMLTablePatcher {

   @PatchMethod
   static int getDOMCellCount(HTMLTable table, Element element, int row) {
      return element.getChildNodes().getItem(row).getChildNodes().getLength();
   }

   @PatchMethod
   static int getDOMRowCount(HTMLTable table, Element element) {
      return element.getChildNodes().getLength();
   }

   @PatchMethod
   static Element getEventTargetCell(HTMLTable table, Event event) {
      Object bodyElem = GwtReflectionUtils.getPrivateFieldValue(table, "bodyElem");

      Element td = DOM.eventGetTarget(event);
      for (; td != null; td = DOM.getParent(td)) {
         // If it's a TD, it might be the one we're looking for.
         if (DOM.getElementProperty(td, "tagName").equalsIgnoreCase("td")) {
            // Make sure it's directly a part of this table before returning
            // it.
            Element tr = DOM.getParent(td);
            Object body = DOM.getParent(tr);

            if (body == bodyElem) {
               return td;
            }
         }
         // If we run into this table's body, we're out of options.
         if (td == bodyElem) {
            return null;
         }
      }
      return null;
   }

}