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Forms.html
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Forms.html
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<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript" src="EventUtil.js"></script>
</head>
<body>
<form name="form1">
<textarea name="textarea1" rows="3" cols="45">dfafasdadfasd</textarea>
<input type="text" name="">
<input type="text" name="">
<input type="submit" value="submit">
<input type="reset" value="reset">
<select name=”location” id=”selLocation”>
<option value=”Sunnyvale, CA”>Sunnyvale</option>
<option value=”Los Angeles, CA”>Los Angeles</option>
<option value=”Mountain View, CA”>Mountain View</option>
<option value=””>China</option>
<option>Australia</option>
</select>
</form>
<br><br>
<p>自动切换表单</p>
<form name="form2">
<input type="text" name="tel1" id="txttel1" maxlength="3">
<input type="text" name="tel2" id="txttel2" maxlength="3">
<input type="text" name="tel3" id="txttel3" maxlength="4">
</form>
<p>HTML5</p>
<form name="form3">
<input type="number" min="0" max="100" step="5" name="count">
</form>
<script type="text/javascript">
var form = document.forms['form1'];
var textbox = form[1];
EventUtil.addHandler(textbox, "focus", function(event) {
event = EventUtil.getEvent(event);
var target = EventUtil.getTarget(event);
if (target.style.backgroundColor != "red") {
target.style.backgroundColor = "yellow";
}
});
EventUtil.addHandler(textbox, "blur", function(event) {
event = EventUtil.getEvent(event);
var target = EventUtil.getTarget(event);
if (/[^\d]/.test(target.value)) {
target.style.backgroundColor = "red";
}else {
target.style.backgroundColor = "";
}
});
EventUtil.addHandler(textbox, "change", function(event) {
event = EventUtil.getEvent(event);
var target = EventUtil.getTarget(event);
if (/[^\d]/.test(target.value)) {
target.style.backgroundColor = "red";
}else {
target.style.backgroundColor = "";
}
});
var textarea = document.forms[0].elements["textarea1"];
textarea.select();
/// 为了保证输入的是数字，要拦截除了数字之外所有的按键，但是删除，方向键不能禁用，同时要考虑复制等操作
EventUtil.addHandler(textbox, "keypress", function(event) {
event = EventUtil.getEvent(event);
var charCode = EventUtil.getCharCode(event);
if (!/\d/.test(String.fromCharCode(charCode)) && charCode > 9 && !event.ctrlKey) {
EventUtil.preventDefault(event);
}
});
EventUtil.addHandler(textbox, "paste", function(event) {
event = EventUtil.getEvent(event);
var text = EventUtil.getClipboardText(event);
if (!/^\d*$/.test(text)) {
EventUtil.preventDefault(event);
}
});
/// 自动切换表单
(function() {
function tabForward(event) {
event = EventUtil.getEvent(event);
var target = EventUtil.getTarget(event);
if (target.value.length == target.maxLength) {
var form = target.form;
for (var i = 0, len = form.elements.length; i < len; i++) {
if (form.elements[i] == target) {
if (form.elements[i + 1]) {
form.elements[i + 1].focus();
}
return;
}
}
}
}
var text1 = document.getElementById("txttel1");
var text2 = document.getElementById("txttel2");
var text3 = document.getElementById("txttel3");
EventUtil.addHandler(text1, "keyup", tabForward);
EventUtil.addHandler(text2, "keyup", tabForward);
EventUtil.addHandler(text3, "keyup", tabForward);
})();
function serialize(form) {
var parts = [],
field = null,
i,
len,
j,
optLen,
option,
optValue;
for (i = 0, len = form.elements.length; i < len; i++) {
field = form.elements[i];
switch(field.type) {
case "select-one":
case "select-multiple":
if (field.name.length) {
for (j = 0, optLen = field.options.length; j < optLen; j++) {
option = field.options[j];
if (option.selected) {
optValue = "";
/// ie8或者之前的版本是没有hasAttribute这个属性的，因此这里需要做这个判断
if (option.hasAttribute) {
optValue = (option.hasAttribute("value") ? option.value : option.text);
}else {
optValue = (option.attributes["value"].specified ? option.value : option.text);
}
parts.push(encodeURIComponent(field.name) + "=" + encodeURIComponent(optValue));
}
}
}
break;
case undefined:
case "file":
case "submit":
case "reset":
case "button":
break;
case "radio":
case "checkbox":
if (!field.checked) {
break;
}
default:
if (field.name.length) {
parts.push(encodeURIComponent(field.name) + "=" + encodeURIComponent(field.value));
}
}
}
return parts.join('&');
}
alert(serialize(form));
</script>
<iframe name="riceedit" src="SubRuning.html" style="height: 800px; width: 800px;"></iframe>
<script type="text/javascript">
EventUtil.addHandler(window, "load", function(event) {
frames["riceedit"].document.designMode = "on";
});
</script>
</body>
</html>