一、取得_用户在文本框中选择的文本
<!DOCTYPE html>
<html>
<head>
<title>文本框脚本_取得选择的文本</title>
<script type="text/javascript" src="EventUtil.js"></script>
</head>
<body>
<p>Select some text in the textbox.</p>
<form method="post" action="javascript:alert('Form submitted!')" id="myForm">
<div>
<label for="comments">Type something:</label><br>
<input type="text" id="txtStuff" name="stuff" value="Default value">
</div>
<input type="submit" value="Submit Form" id="submit-btn">
</form>
<script type="text/javascript">
(function(){
function getSelectedText(textbox){
if (typeof textbox.selectionStart == "number"){
return textbox.value.substring(textbox.selectionStart,
textbox.selectionEnd);
} else if (document.selection){
return document.selection.createRange().text;
}
}
EventUtil.addHandler(window, "load", function(event){
var textbox = document.forms[0].elements[0];
EventUtil.addHandler(textbox, "select", function(event){
console.log(getSelectedText(textbox));
});
textbox.focus();
});
})();
</script>
</body>
</html>
二、取得_文本框中部分文本
<!DOCTYPE html>
<html>
<head>
<title>Textbox Partial Selection Example</title>
<script type="text/javascript" src="EventUtil.js"></script>
</head>
<body>
<p>Select some text in the textbox.</p>
<form method="post" action="javascript:alert('Form submitted!')" id="myForm">
<div>
<label for="comments">Type something:</label><br>
<input type="text" id="txtStuff" name="stuff" value="Default value">
</div>
<input type="button" value="Select some text" id="select-btn">
</form>
<script type="text/javascript">
(function(){
function selectText(textbox, startIndex, stopIndex){
if (textbox.setSelectionRange){
textbox.setSelectionRange(startIndex, stopIndex);
} else if (textbox.createTextRange){
var range = textbox.createTextRange();
range.collapse(true);
range.moveStart("character", startIndex);
range.moveEnd("character", stopIndex - startIndex);
range.select();
}
textbox.focus();
}
var btn = document.getElementById("select-btn");
EventUtil.addHandler(btn, "click", function(event){
var textbox = document.forms[0].elements[0];
selectText(textbox, 4, 7);
});
})();
</script>
</body>
</html>