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POCan't Detect Mouseover on This KineticJS Shape?
 

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  1. POCan't Detect Mouseover on This KineticJS Shape?
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    <p>I have a KineticJS shape that draws a bezier curve that is wider on one end. It draws correctly, but I can't yet detect a 'mouseover' event on it. I have created a small JSFiddle demo of the anomaly, at:</p> <p><a href="http://jsfiddle.net/VikR0001/nZYxL/6/" rel="nofollow">http://jsfiddle.net/VikR0001/nZYxL/6/</a></p> <p>How can I detect 'mouseover' events on this shape?</p> <p>Thanks very much in advance to all for any info!</p> <pre><code> var mainLayer; //bezier curve code: //http://stackoverflow.com/questions/8325680/how-to-draw-a-bezier-curve-with-variable-thickness-on-an-html-canvas //draw a bezier curve that gets larger as it flows //adapted for use with KineticJS function drawBezierCurve() { var centerLeft = new Object(); centerLeft.x = 100; centerLeft.y = 400; var centerRight = new Object(); centerRight.x = 400; centerRight.y = 100; var thicknessLeft = 1; var thicknessRight = 50; var color = "#000"; var context = mainLayer.getContext(); var leftUpper = { x: centerLeft.x, y: centerLeft.y - thicknessLeft / 2 }; var leftLower = { x: centerLeft.x, y: leftUpper.y + thicknessLeft }; var rightUpper = { x: centerRight.x, y: centerRight.y - thicknessRight / 2 }; var rightLower = { x: centerRight.x, y: rightUpper.y + thicknessRight }; var center = (centerRight.x + centerLeft.x) / 2; var cp1Upper = { x: center, y: leftUpper.y }; var cp2Upper = { x: center, y: rightUpper.y }; var cp1Lower = { x: center, y: rightLower.y }; var cp2Lower = { x: center, y: leftLower.y }; var bezierCurve = new Kinetic.Shape({ drawFunc: function (canvas) { var context = mainLayer.getContext(); context.fillStyle = color; context.beginPath(); context.moveTo(leftUpper.x, leftUpper.y); context.bezierCurveTo(cp1Upper.x, cp1Upper.y, cp2Upper.x, cp2Upper.y, rightUpper.x, rightUpper.y); context.lineTo(rightLower.x, rightLower.y); context.bezierCurveTo(cp1Lower.x, cp1Lower.y, cp2Lower.x, cp2Lower.y, leftLower.x, leftLower.y); context.lineTo(leftUpper.x, leftUpper.y); context.fill(); canvas.stroke(this); }, fill: color, stroke: color, strokeWidth: 1 }); bezierCurve.on('mouseover', function (evt) { document.body.style.cursor = "pointer"; $("#debug").html("MOUSEOVER DETECTED."); //&lt;==NEVER CALLED }); bezierCurve.on('mouseout', function (evt) { document.body.style.cursor = "default"; $("#debug").html("MOUSEOUT DETECTED."); //NEVER CALLED }); bezierCurve.setAttrs({ 'leftUpper': leftUpper, 'leftLower': leftLower, 'rightUpper': rightUpper, 'rightLower': rightLower, 'cp1Upper': cp1Upper, 'cp2Upper': cp2Upper, 'cp1Lower': cp1Lower, 'cp2Lower': cp2Lower }); mainLayer.add(bezierCurve); mainLayer.draw(); $("#debug").html("bezier curve has been drawn onscreen."); } $(document).ready(function () { var stage = new Kinetic.Stage({ container: 'canvasContainer', width: 500, height: 500 }); mainLayer = new Kinetic.Layer('main'); stage.add(mainLayer); mainLayer.draw(); drawBezierCurve(); }); </code></pre>
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