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POHow to make canvas move with HTML5 feature only?
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  1. POHow to make canvas move with HTML5 feature only?
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    copied!<p>I want to move the shape that I draw with the canvas ex: I draw rectangle . How I can move it to specific area with drag-able attribute ? and using java script to add the listener. </p> <p>waiting for help.</p> <p>This is my code :</p> <pre><code> in Java script file : var c=document.getElementById("rectangle"); var cxt=c.getContext("2d"); cxt.fillStyle="#009933"; cxt.fillRect(20,10 ,150,75); function dragStart(ev) { //allow move ev.dataTransfer.effectAllowed='move'; ev.dataTransfer.dropEffect='move'; //on transfer var style = ev.target.getAttribute("id").style; ev.dataTransfer.setData("Text",ev.target.getAttribute("id")); //ev.dataTransfer.setDragImage(ev.target,0,0); ev.dataTransfer.setDragImage(ev.target,(parseInt(style.getPropertyValue("left"),10) - ev.clientX) ,(parseInt(style.getPropertyValue("top"),10) - ev.clientY)); return true; } function dragEnter(ev) { return true; } function dragOver(event) { event.preventDefault(); return false; } function dragDrop(ev) { //var offset = event.dataTransfer.getData("text/plain").split(','); var dm = document.getElementById(ev.dataTransfer.getData("Text")); // dm.style.left = (event.clientX + parseInt(offset[0],10)) + 'px'; // dm.style.top = (event.clientY + parseInt(offset[1],10)) + 'px'; ev.target.appendChild(dm); ev.stopPropagation(); ev.preventDefault(); return false; } HTML File: &lt;div ondragenter="return dragEnter(event)" ondrop="return dragDrop(event)" ondragover="return dragOver(event)"&gt; &lt;canvas id="rectangle" width="200px" height="150px" draggable="true"&gt;&lt;/canvas&gt; &lt;/div&gt; &lt;div id="target"ondragenter="return dragEnter(event)" ondrop="return dragDrop(event)" ondragover="return dragOver(event)"&gt; &lt;/div&gt; </code></pre>
 

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