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Help with JavaScript in SVG

Posted on 2009-03-30
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Last Modified: 2012-05-06
We have SVGs that we are trying to write some javascript for to provide certain interactivity. Our SVGs consist of geometry that exist in several 'g' elements. Each <g> element has its own unique ID. We have been trying to write a script that will perform the following functionality in our SVGs:

1. Upon inital load, all <g> elements contain black geometry. During onmouseover, it will highlight the associated <g> element in yellow.

2. If a <g> element is clicked, then it highlights the geometry in a specified color (which can be passed in the script). This state must be maintained (i.e. onmouseover and onmouseout events will not affect the state) until the same <g> element is clicked again.

3. If the <g> is clicked a second time, it returns to its normal state (black geometry, onmouseover = yellow, onmouseout = black).

So, the cliff notes version:

state = black
if clicked = false{
onmouseover = yellow
onmouseout = black
}
if clicked = true{
onclick = color
onmouseover = null
onmouseout = null
}

We have been able to get one or the other (onmouseover/onmouseout OR onclick) to work, but we have been horribly unsuccessful in getting them to work together. Any and all help is GREATLY appreciated.
I have attached a sample subset snippet of SVG code below.
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="EXPORT_FUNX" viewBox="-0.386222 -7.45269 13.9823 
 
8.09389" version="1.1" preserveAspectRatio="xMidYMid" xml:space="preserve" width="100%" height="100%">
<g id="XPORTMON" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;fill:black;stroke:black;stroke-linecap:round;stroke-linejoin:round">
<text transform="matrix(0.0625 0 0 0.0625 0.918043 -4.71393)">XPORTMON</text>
    <polyline points="0.8515,-4.6821 2.2241,-4.6821 "/>
    <path d="M0.8515,-4.7271  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <path d="M0.8515,-4.6371  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.6821 "/>
    <polyline points="2.1390,-4.6569 2.1496,-4.6569 "/>
    <polyline points="2.1390,-4.6641 2.1709,-4.6641 "/>
    <polyline points="2.1390,-4.6713 2.1922,-4.6713 "/>
    <polyline points="2.1390,-4.6785 2.2134,-4.6785 "/>
    <polyline points="2.1390,-4.7073 2.1496,-4.7073 "/>
    <polyline points="2.1390,-4.7001 2.1709,-4.7001 "/>
    <polyline points="2.1390,-4.6929 2.1922,-4.6929 "/>
    <polyline points="2.1390,-4.6857 2.2134,-4.6857 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.7109 "/>
    <polyline points="2.1390,-4.7109 2.1390,-4.6533 "/>
    <polyline points="2.1390,-4.6533 2.2241,-4.6821 "/>
  </g>
<g id="EMSSMON" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;fill:black;stroke:black;stroke-linecap:round;stroke-linejoin:round">
    <text transform="matrix(0.0625 0 0 0.0625 0.912091 -4.56088)">/EMSSMON</text>
    <polyline points="0.8515,-4.5246 2.2241,-4.5246 "/>
    <path d="M0.8515,-4.5696  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <path d="M0.8515,-4.4796  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5246 "/>
    <polyline points="2.1390,-4.4994 2.1496,-4.4994 "/>
    <polyline points="2.1390,-4.5066 2.1709,-4.5066 "/>
    <polyline points="2.1390,-4.5138 2.1922,-4.5138 "/>
    <polyline points="2.1390,-4.5210 2.2134,-4.5210 "/>
    <polyline points="2.1390,-4.5498 2.1496,-4.5498 "/>
    <polyline points="2.1390,-4.5426 2.1709,-4.5426 "/>
    <polyline points="2.1390,-4.5354 2.1922,-4.5354 "/>
    <polyline points="2.1390,-4.5282 2.2134,-4.5282 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5534 "/>
    <polyline points="2.1390,-4.5534 2.1390,-4.4958 "/>
    <polyline points="2.1390,-4.4958 2.2241,-4.5246 "/>
  </g>
</svg>

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Question by:kmartin7
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8 Comments
 
LVL 16

Accepted Solution

by:
Lolly-Ink earned 500 total points
ID: 24024118
The following modified SVG file was tested successfully using Adobe SVG Viewer in IE8 RC1.
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="EXPORT_FUNX" 
   viewBox="-0.386222 -7.45269 13.9823 8.09389" version="1.1" preserveAspectRatio="xMidYMid" xml:space="preserve" width="100%" height="100%">
   <defs>
      <script type="text/javascript">
         <![CDATA[
            function highlight(evt, mode, colour)
            {
               var fill = evt.target.getAttribute("fill");
               var defaultColour = "yellow";
               switch (mode)
               {
                  case 0:
                     colour = fill || defaultColour;
                     break;
                  case 1:
                     colour = ((fill == defaultColour) ? "" : fill);
                     break;
                  case 2:
                     colour = ((fill == colour) ? defaultColour : colour);
                     break;
               }
               evt.target.setAttribute("fill", colour);
            }
         ]]>
      </script>
   </defs>
<g id="XPORTMON" onmouseover="highlight(evt, 0)" onmouseout="highlight(evt, 1)" onclick="highlight(evt, 2, 'green')" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;fill:black;stroke:black;stroke-linecap:round;stroke-linejoin:round">
<text transform="matrix(0.0625 0 0 0.0625 0.918043 -4.71393)">XPORTMON</text>
    <polyline points="0.8515,-4.6821 2.2241,-4.6821 "/>
    <path d="M0.8515,-4.7271  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <path d="M0.8515,-4.6371  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.6821 "/>
    <polyline points="2.1390,-4.6569 2.1496,-4.6569 "/>
    <polyline points="2.1390,-4.6641 2.1709,-4.6641 "/>
    <polyline points="2.1390,-4.6713 2.1922,-4.6713 "/>
    <polyline points="2.1390,-4.6785 2.2134,-4.6785 "/>
    <polyline points="2.1390,-4.7073 2.1496,-4.7073 "/>
    <polyline points="2.1390,-4.7001 2.1709,-4.7001 "/>
    <polyline points="2.1390,-4.6929 2.1922,-4.6929 "/>
    <polyline points="2.1390,-4.6857 2.2134,-4.6857 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.7109 "/>
    <polyline points="2.1390,-4.7109 2.1390,-4.6533 "/>
    <polyline points="2.1390,-4.6533 2.2241,-4.6821 "/>
  </g>
<g id="EMSSMON" onmouseover="highlight(evt, 0)" onmouseout="highlight(evt, 1)" onclick="highlight(evt, 2, 'blue')" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;fill:black;stroke:black;stroke-linecap:round;stroke-linejoin:round">
    <text transform="matrix(0.0625 0 0 0.0625 0.912091 -4.56088)">/EMSSMON</text>
    <polyline points="0.8515,-4.5246 2.2241,-4.5246 "/>
    <path d="M0.8515,-4.5696  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <path d="M0.8515,-4.4796  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5246 "/>
    <polyline points="2.1390,-4.4994 2.1496,-4.4994 "/>
    <polyline points="2.1390,-4.5066 2.1709,-4.5066 "/>
    <polyline points="2.1390,-4.5138 2.1922,-4.5138 "/>
    <polyline points="2.1390,-4.5210 2.2134,-4.5210 "/>
    <polyline points="2.1390,-4.5498 2.1496,-4.5498 "/>
    <polyline points="2.1390,-4.5426 2.1709,-4.5426 "/>
    <polyline points="2.1390,-4.5354 2.1922,-4.5354 "/>
    <polyline points="2.1390,-4.5282 2.2134,-4.5282 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5534 "/>
    <polyline points="2.1390,-4.5534 2.1390,-4.4958 "/>
    <polyline points="2.1390,-4.4958 2.2241,-4.5246 "/>
  </g>
</svg>

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Author Closing Comment

by:kmartin7
ID: 31564335
Thank you!
0
 
LVL 11

Author Comment

by:kmartin7
ID: 24029846
Actually, is there a way to include the stroke as well? Including fill and stroke.
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Expert Comment

by:Lolly-Ink
ID: 24034289
Yes. Just insert the following code after line 22:
evt.target.setAttribute("stroke", colour);

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LVL 11

Author Comment

by:kmartin7
ID: 24051556
The problem we are still having is that it doesn't affect the entire <g> element, but rather only the specific geometry. When I originally accepted the answer, it appeared to work on the small subset.

Any ideas as to how to make this work for the entire <g> element? I can ask a separate question if you prefer.

thanks!
0
 
LVL 11

Author Comment

by:kmartin7
ID: 24053708
Similar to the following, but we cannot set the clicked state to true, and get the rest of the script to recognize.

I really appreciate your assistance with this.

Cheers.
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="EXPORT_FUNX" 
   viewBox="-0.386222 -7.45269 13.9823 8.09389" version="1.1" preserveAspectRatio="xMidYMid" xml:space="preserve" width="100%" height="100%">
   <defs>
      <script type="text/javascript">
         <![CDATA[
            function highlight(elementId, mode, color)
            {
               var element = document.getElementById(elementId);
			   var defaultcolor = "yellow";
			   var fillcolor = element.getAttribute("fill");
			   var clicked = "false";
               switch (mode)
               {
                  case 0:
				  if (clicked == "false"){
                    element.style.setProperty('fill', defaultcolor, '');				
					element.style.setProperty('stroke', defaultcolor, '');
					//alert("onmouseover: " + clicked);
					}
				  else{
					element.style.setProperty('fill', color, '');				
					element.style.setProperty('stroke', color, '');
					}			
                    break;
                  case 1:
				  if (clicked == "false") {
                    element.style.setProperty('fill', 'black', '');				
					element.style.setProperty('stroke', 'black', '');
					//alert("onmouseout: " +clicked);
					}
				  else{
					element.style.setProperty('fill', color, '');				
					element.style.setProperty('stroke', color, '');
					//alert("onmouseout: " +clicked);
					}			
                    break;
                  case 2:
				    element.style.setProperty('fill', color, '');				
					element.style.setProperty('stroke', color, '');
					clicked = "true";
					return true;
					//alert("onclick: " +clicked);
                    //break;
               }
            }
         ]]>
      </script>
   </defs>
<g id="XPORTMON" onmouseover="highlight('XPORTMON', 0, 'purple')" onmouseout="highlight('XPORTMON', 1, 'purple')" onclick="highlight('XPORTMON', 2, 'purple');" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;fill:black;stroke:black;stroke-linecap:round;stroke-linejoin:round">
<text transform="matrix(0.0625 0 0 0.0625 0.918043 -4.71393)">XPORTMON</text>
    <polyline points="0.8515,-4.6821 2.2241,-4.6821 "/>
    <path d="M0.8515,-4.7271  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <path d="M0.8515,-4.6371  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.6821 "/>
    <polyline points="2.1390,-4.6569 2.1496,-4.6569 "/>
    <polyline points="2.1390,-4.6641 2.1709,-4.6641 "/>
    <polyline points="2.1390,-4.6713 2.1922,-4.6713 "/>
    <polyline points="2.1390,-4.6785 2.2134,-4.6785 "/>
    <polyline points="2.1390,-4.7073 2.1496,-4.7073 "/>
    <polyline points="2.1390,-4.7001 2.1709,-4.7001 "/>
    <polyline points="2.1390,-4.6929 2.1922,-4.6929 "/>
    <polyline points="2.1390,-4.6857 2.2134,-4.6857 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.7109 "/>
    <polyline points="2.1390,-4.7109 2.1390,-4.6533 "/>
    <polyline points="2.1390,-4.6533 2.2241,-4.6821 "/>
  </g>
<g id="EMSSMON" onmouseover="highlight('EMSSMON', 0, 'green')" onmouseout="highlight('EMSSMON', 1, 'green')" onclick="highlight('EMSSMON', 2, 'green');" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;fill:black;stroke:black;stroke-linecap:round;stroke-linejoin:round">
    <text transform="matrix(0.0625 0 0 0.0625 0.912091 -4.56088)">/EMSSMON</text>
    <polyline points="0.8515,-4.5246 2.2241,-4.5246 "/>
    <path d="M0.8515,-4.5696  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <path d="M0.8515,-4.4796  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5246 "/>
    <polyline points="2.1390,-4.4994 2.1496,-4.4994 "/>
    <polyline points="2.1390,-4.5066 2.1709,-4.5066 "/>
    <polyline points="2.1390,-4.5138 2.1922,-4.5138 "/>
    <polyline points="2.1390,-4.5210 2.2134,-4.5210 "/>
    <polyline points="2.1390,-4.5498 2.1496,-4.5498 "/>
    <polyline points="2.1390,-4.5426 2.1709,-4.5426 "/>
    <polyline points="2.1390,-4.5354 2.1922,-4.5354 "/>
    <polyline points="2.1390,-4.5282 2.2134,-4.5282 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5534 "/>
    <polyline points="2.1390,-4.5534 2.1390,-4.4958 "/>
    <polyline points="2.1390,-4.4958 2.2241,-4.5246 "/>
  </g>
</svg>

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Expert Comment

by:Lolly-Ink
ID: 24055129
Now uses evt.currentTarget (which is the g element) instead of evt.target (which was the individual element within the g(roup)).
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="EXPORT_FUNX" 
   viewBox="-0.386222 -7.45269 13.9823 8.09389" version="1.1" preserveAspectRatio="xMidYMid" xml:space="preserve" width="100%" height="100%">
   <defs>
      <script type="text/javascript">
         <![CDATA[
            function highlight(evt, mode, colour)
            {
               var element = evt.currentTarget;
               var fill = element.getAttribute("fill");
               if (fill == "black")
               {
                  fill = "";
               }
               var defaultColour = "yellow";
               switch (mode)
               {
                  case 0:
                     colour = fill || defaultColour;
                     break;
                  case 1:
                     colour = ((fill == defaultColour) ? "" : fill);
                     break;
                  case 2:
                     colour = ((fill == colour) ? defaultColour : colour);
                     break;
               }
               element.setAttribute("fill", colour || "black");
               element.setAttribute("stroke", colour || "black");
            }
         ]]>
      </script>
   </defs>
<g id="XPORTMON" onmouseover="highlight(evt, 0)" onmouseout="highlight(evt, 1)" onclick="highlight(evt, 2, 'green')" fill="black" stroke="black" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;stroke-linecap:round;stroke-linejoin:round">
<text transform="matrix(0.0625 0 0 0.0625 0.918043 -4.71393)">XPORTMON</text>
    <polyline points="0.8515,-4.6821 2.2241,-4.6821 "/>
    <path d="M0.8515,-4.7271  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <path d="M0.8515,-4.6371  A0.0320,0.0320 44.5493 0,0 0.8515,-4.6821 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.6821 "/>
    <polyline points="2.1390,-4.6569 2.1496,-4.6569 "/>
    <polyline points="2.1390,-4.6641 2.1709,-4.6641 "/>
    <polyline points="2.1390,-4.6713 2.1922,-4.6713 "/>
    <polyline points="2.1390,-4.6785 2.2134,-4.6785 "/>
    <polyline points="2.1390,-4.7073 2.1496,-4.7073 "/>
    <polyline points="2.1390,-4.7001 2.1709,-4.7001 "/>
    <polyline points="2.1390,-4.6929 2.1922,-4.6929 "/>
    <polyline points="2.1390,-4.6857 2.2134,-4.6857 "/>
    <polyline points="2.2241,-4.6821 2.1390,-4.7109 "/>
    <polyline points="2.1390,-4.7109 2.1390,-4.6533 "/>
    <polyline points="2.1390,-4.6533 2.2241,-4.6821 "/>
  </g>
<g id="EMSSMON" onmouseover="highlight(evt, 0)" onmouseout="highlight(evt, 1)" onclick="highlight(evt, 2, 'blue')" fill="black" stroke="black" style="font-family:Verdana;font-size:1.4px;stroke-width:0.01px;stroke-linecap:round;stroke-linejoin:round">
    <text transform="matrix(0.0625 0 0 0.0625 0.912091 -4.56088)">/EMSSMON</text>
    <polyline points="0.8515,-4.5246 2.2241,-4.5246 "/>
    <path d="M0.8515,-4.5696  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <path d="M0.8515,-4.4796  A0.0320,0.0320 44.5493 0,0 0.8515,-4.5246 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5246 "/>
    <polyline points="2.1390,-4.4994 2.1496,-4.4994 "/>
    <polyline points="2.1390,-4.5066 2.1709,-4.5066 "/>
    <polyline points="2.1390,-4.5138 2.1922,-4.5138 "/>
    <polyline points="2.1390,-4.5210 2.2134,-4.5210 "/>
    <polyline points="2.1390,-4.5498 2.1496,-4.5498 "/>
    <polyline points="2.1390,-4.5426 2.1709,-4.5426 "/>
    <polyline points="2.1390,-4.5354 2.1922,-4.5354 "/>
    <polyline points="2.1390,-4.5282 2.2134,-4.5282 "/>
    <polyline points="2.2241,-4.5246 2.1390,-4.5534 "/>
    <polyline points="2.1390,-4.5534 2.1390,-4.4958 "/>
    <polyline points="2.1390,-4.4958 2.2241,-4.5246 "/>
  </g>
</svg>

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LVL 11

Author Comment

by:kmartin7
ID: 24055505
Excellent. Thank you for your help!
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