listitem.lzx

<library>
    <include href="base/baselistitem.lzx"/>

     <!--- A simple listitem that is usually declared inside of a list. -->
     <class name="listitem" width="100%" extends="baselistitem"> <!-- before... width="${parent.width - parent['rightinset']}" -->

        <!--- The height of the listitem. -->
        <attribute name="height" value="20"/>

        <!--- This is a protected attribute of baselistitem and the default value of
             onClick is replaced with onmousetrackup so that the parent.select()
             function is not called twice.
             @keywords private -->
        <attribute name="_selectonevent" value="onmousetrackup"/>

        <!--- @keywords private -->
        <attribute name="_ipclassroot" value="$once{immediateparent.classroot}"/>

        <!--- @keywords private -->
        <attribute name="hilited" value="false"/>

        <!--- Mouse methods
        Note: don't need to unhilite listitem, parent view
              will do this when another listitem is hilited
              @keywords private -->
        <handler name="onmousetrackover">
            _ipclassroot.setHilite( this );
        </handler>

        <!--- @keywords private -->
        <handler name="onmouseover">
            if ( !immediateparent.tracking ) {
                _ipclassroot.setHilite( this );
               }
        </handler>

        <!--- @keywords private -->
        <handler name="onmouseout">
            if ( !immediateparent.tracking ) {
                _ipclassroot.setHilite( null );
               }
        </handler>

        <!--- @keywords private -->
        <method name="setSelected" args="isSelected">
            super.setSelected(isSelected);
            if (this._initcomplete) _applystyle(this.style);
        </method>

        <!--- @keywords private -->
        <method name="setHilite" args="ishilited">
            if (ishilited != this.hilited) {
                this.hilited = ishilited;
                if (this._initcomplete) _applystyle(this.style);
            }
        </method>

        <!--- @keywords private -->
        <handler name="ontrackgroup" reference="immediateparent.classroot" args="tg">
            // TODO: check to see if this is working?
            lz.Track.register(this,tg);
        </handler>

         <!--- @keywords private -->
        <method name="_applystyle" args="s">
            if (this.style != null) {
                if (_enabled) {
                    if (selected)
                        this.setAttribute('bgcolor', style.selectedcolor)
                    else if ( hilited )
                        this.setAttribute('bgcolor', style.hilitecolor);
                    else
                        this.setAttribute('bgcolor', style.textfieldcolor);
                } else {
                   this.setAttribute('bgcolor', style.textfieldcolor);
                }
            }
        </method>
        
        <!--- @keywords private -->
        <method name="_showEnabled"> 
             setAttribute('clickable', _enabled);
             if (_initcomplete) {
                _applystyle(this.style);
            }
        
        </method>

        <doc>
          <tag name="shortdesc"><text>
              a listitem is an element of a list
          </text></tag>
          <text>
            <p>A <classname>listitem</classname> is an element with a value that
              is contained within a list.  As with
              <classname>baselistitem</classname>, the selected attribute will be
              true when selected.</p> 

            <example>
              <canvas height="80">
              <list>
              <listitem value="1" selected="true"/>
              <listitem value="2" />
              </list>
              </canvas>
            </example>
          </text>
        </doc>

     </class> <!-- END listitem -->
</library>
<!-- * X_LZ_COPYRIGHT_BEGIN ***************************************************
* Copyright 2001-2008 Laszlo Systems, Inc.  All Rights Reserved.              *
* Use is subject to license terms.                                            *
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<!-- @LZX_VERSION@                                                         -->