RetroZilla/xpfe/browser/samples/colorpicker.xul

<?xml version="1.0"?> <!-- -*- Mode: HTML -*- -->

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<?xml-stylesheet href="chrome://global/skin/global.css" type="text/css"?>

<window title="Color Picker"
  xmlns:html="http://www.w3.org/1999/xhtml"
  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
  orient="vertical"
  style="width:200px"
  >

<script>
  function doSomethingUseful(cp)
  {
    var color = cp.color;
    document.getElementById("input").value = color;
    document.getElementById("mydiv").style.backgroundColor = color;
  }
</script>

<colorpicker id="cp" onclick="doSomethingUseful(this);" style="background-color: #CCCCCC;"/>
<html:p/>
<html:input id="input"/>
<html:p/>
<html:div id="mydiv" style="width:100px; height:100px; background-color:white"/>


<html:hr/>

<script>
  function setColorWell(menu)
  {
    // Debug tree walking.
    dump("\n");
    
    dump("parent: ");
    dump(menu.id);
    dump("\n");

    dump("child 1: ");
    dump(menu.firstChild.id);
    dump("\n");

    dump("child 2: ");
    dump(menu.firstChild.nextSibling.id);
    dump("\n");

    dump("child 3: ");
    dump(menu.firstChild.nextSibling.nextSibling.id);
    dump("\n");

    dump("child 3's child 1: ");
    dump(menu.firstChild.nextSibling.nextSibling.firstChild.id);
    dump("\n");


    dump("\n");
    dump("\n");

    // Find the colorWell and colorPicker in the hierarchy.
    var colorWell = menu.firstChild.nextSibling;
    var colorPicker = menu.firstChild.nextSibling.nextSibling.firstChild;

    // Extract color from colorPicker and assign to colorWell.
    var color = colorPicker.getAttribute('color');
    colorWell.style.backgroundColor = color;
  }
</script>

<!-- ColorPicker #1 -->
<hbox id="box1">
<menu id="menu1">
  <button id="button1" label="text1" class="popup"/>
  <html:div id="colorWell1" style="width:30px; background-color:white"/>
  <menupopup id="popup1">
    <colorpicker id="cp1" palettename="standard" onclick="setColorWell(this.parentNode.parentNode);"/>
  </menupopup>
</menu>
</hbox>

<!-- ColorPicker #2 -->
<html:hr/>
<hbox id="box2">
<menu id="menu2">
  <button id="button2" label="text2" class="popup"/>
  <html:div id="colorWell2" style="width:30px; background-color:white"/>
  <menupopup id="popup2">
    <colorpicker id="cp2" palettename="gray" onclick="setColorWell(this.parentNode.parentNode);"/>
  </menupopup>
</menu>
</hbox>

<!-- ColorPicker #3 -->
<html:hr/>
<hbox id="box3">
<menu id="menu3">
  <button id="button3" label="text3" class="popup"/>
  <html:div id="colorWell3" style="width:30px; background-color:white"/>
  <menupopup id="popup3">
    <colorpicker id="cp3" palettename="web" onclick="setColorWell(this.parentNode.parentNode);"/>
  </menupopup>
</menu>
</hbox>


</window>