user/src/com/google/gwt/event/dom/TouchEvent.gwt.xml

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<module type="fileset">

  <!-- Define the support property -->
  <define-property name="touchEventSupport" values="maybe,no" />

  <!--
    Modern browsers either support touch events or will probably add touch
    support in the future.
  -->
  <set-property name="touchEventSupport" value="maybe" />

  <!-- Older browsers do not support touch events. -->
  <set-property name="touchEventSupport" value="no">
    <any>
      <when-property-is name="user.agent" value="ie6" />
    </any>
  </set-property>

  <replace-with class="com.google.gwt.event.dom.client.TouchEvent.TouchSupportDetectorNo">
    <when-type-is class="com.google.gwt.event.dom.client.TouchEvent.TouchSupportDetector" />
    <when-property-is name="touchEventSupport" value="no" />
  </replace-with>
</module>