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Add option for visibility of x-value hover detail. #472

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Add option for visibility of x-value hover detail. #472

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18 changes: 12 additions & 6 deletions src/js/Rickshaw.Graph.HoverDetail.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,9 @@ Rickshaw.Graph.HoverDetail = Rickshaw.Class.create({
return y === null ? y : y.toFixed(2);
};

// Whether the x-value hover detail is visible; true by default.
this.xHoverVisible = (args.xHoverVisible === undefined) || args.xHoverVisible;

var element = this.element = document.createElement('div');
element.className = 'detail';

Expand Down Expand Up @@ -164,11 +167,13 @@ Rickshaw.Graph.HoverDetail = Rickshaw.Class.create({
this.element.innerHTML = '';
this.element.style.left = graph.x(point.value.x) + 'px';

var xLabel = document.createElement('div');

xLabel.className = 'x_label';
xLabel.innerHTML = formattedXValue;
this.element.appendChild(xLabel);
// Add x-value hover detail.
if (this.xHoverVisible) {
var xLabel = document.createElement('div');
xLabel.className = 'x_label';
xLabel.innerHTML = formattedXValue;
this.element.appendChild(xLabel);
}

var item = document.createElement('div');

Expand Down Expand Up @@ -198,7 +203,8 @@ Rickshaw.Graph.HoverDetail = Rickshaw.Class.create({

// Assume left alignment until the element has been displayed and
// bounding box calculations are possible.
var alignables = [xLabel, item];
var alignables = [item];
if (this.xHoverVisible) alignables.push(xLabel);
alignables.forEach(function(el) {
el.classList.add('left');
});
Expand Down