I am trying to display a tooltip text over 2 lines but nothing seems to be working. I have an SVG with a text element for displaying a tooltip with an ecmascript managing the tooltip. I have tried several options in the line
tooltip.textContent = " Text = " + id + " <br/> Result =" + result;
“\\n”, “\\n\\n”, '\\\\\\n', style=" white-space: pre;", String.fromCharCode(13)
but the tooltip will not split into 2 lines. Any suggestions please.
<svg ….>
<script type="text/ecmascript">
<![CDATA[
function init(evt) {
if ( window.svgDocument == null ) {
svgDoc = evt.target.ownerDocument;
}
theSvgElement = document.getElementById("svg");
tooltip = svgDoc.getElementById('tooltip');
}
function ShowTooltip(id) {
result = getResult();
tooltip.setAttributeNS(null,"visibility","visible");
tooltip.textContent = " Text = " + id + " \n Result =" + result;
}
function HideTooltip() {
tooltip.setAttributeNS(null,"visibility","hidden");
}
]]>
</script>
<g>
<circle
r="40"
cy="200"
cx="300"
fill="#00b300"
onmouseout="HideTooltip()"
onmouseover="ShowTooltip('CD.02.02.02')"/>
</g>
<text class="tooltip" id="tooltip" x="20" y="20"
style="font-family: Times New Roman; font-size: 80; fill: #000000; white-space: pre;"
visibility="hidden"> Hover to read the text.
</text>
</svg>
Try adding <tspan>
elements inside the tooltip with different y
positions, as pointed in Example 3 from here: http://www.w3schools.com/svg/svg_text.asp
More precisely, replace the line tooltip.textContent = ...
with
tooltip.textContent = "";
var tspan1 = document.createElementNS("http://www.w3.org/2000/svg", 'tspan');
txtnode1 = document.createTextNode("Text = " + id);
tspan1.appendChild(txtnode1);
tspan1.setAttribute("x",20);
tspan1.setAttribute("y",30);
var tspan2 = document.createElementNS("http://www.w3.org/2000/svg", 'tspan');
txtnode2 = document.createTextNode("Result =" + result);
tspan2.appendChild(txtnode2);
tspan2.setAttribute("x",20);
tspan2.setAttribute("y",60);
tooltip.appendChild(tspan1);
tooltip.appendChild(tspan2);
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