Amy*_*mus 1 javascript jquery d3.js
我想在简短的d3动画中显示,并在完成后,自动选择/聚焦表单字段以获取用户输入.
看起来它最好通过链接功能来完成.我尝试使用javascript函数focus()在加载时选择表单字段("signup","inputname"),但这不起作用.
动画完成后如何自动选择表单域?
d3.js:
<script>
selectReady = d3.selectAll("#ready")
.on("mouseover", function(){d3.select(this).style("color", "red");})
.on("mouseout", function(){d3.select(this).style("color", "black");})
.on("mousedown", animateDisplay); //starts animation with a mousepress
function animateDisplay(){
d3.selectAll("#Display")
.transition()
.delay(200)
.duration(1000)
.style("color","white") // changes Display to white
.each("end",selectForm);
};
function selectForm(){
d3.select("#inputname")
.focus(); // remove() works here
};
</script>
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HTML:
<html>
<head>
<script type="text/javascript"src="http://mbostock.github.com/d3/d3.js"></script>
</head>
<body>
<p id="ready">Click when ready<p></th>
<p id='Display'>A</p>
<p id='Display'>B</p>
<p id='Display'>C</p>
<form name="signup" id="signup" method="post" action="#">
<table>
<tr>
<td colspan="2" class="labelcell"><label for="name">Name</label></td>
<td colspan="2" class="fieldcell">
<input type="text" name="inputname" id="inputname" tabindex="1" />
</td>
</tr>
</table>
</form>
</body>
</html>
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mbo*_*ock 13
使用selection.node访问底层DOM元素,然后使用element.focus:
d3.select("#inputname").node().focus()
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