contextmenu
警告: contextmenu 属性已经过时,将从所有浏览器中删除。
contextmenu
全局属性是指用于某个元素的“上下文菜单”的<menu>
的ID属性。上下文菜单是指在用户交互(例如右键点击)时出现的菜单。HTML5 允许我们自定义此菜单。这里有一些实现示例,包括嵌套菜单。
示例
HTML
html
<body contextmenu="share">
<menu type="context" id="share">
<menu label="share">
<menuitem label="Twitter" onclick="shareViaTwitter()"></menuitem>
<menuitem label="Facebook" onclick="shareViaFacebook()"></menuitem>
</menu>
</menu>
<ol>
<li>
Anywhere in the example you can share the page on Twitter and Facebook
using the Share menu from your context menu.
</li>
<li contextmenu="changeFont" id="fontSizing">
On this specific list element, you can change the size of the text by
using the "Increase/Decrease font" actions from your context menu
</li>
<menu type="context" id="changeFont">
<menuitem label="Increase Font" onclick="incFont()"></menuitem>
<menuitem label="Decrease Font" onclick="decFont()"></menuitem>
</menu>
<li contextmenu="ChangeImage" id="changeImage">
On the image below, you can fire the "Change Image" action in your Context
Menu.<br />
<img
src="https://developer.mozilla.org/media/img/promote/promobutton_mdn5.png"
contextmenu="ChangeImage"
id="promoButton" />
<menu type="context" id="ChangeImage">
<menuitem label="Change Image" onclick="changeImage()"></menuitem>
</menu>
</li>
</ol>
</body>
JavaScript
js
function shareViaTwitter() {
window.open(
"https://twitter.com/intent/tweet?text=" +
"Hurray! I am learning ContextMenu from MDN via Mozilla",
);
}
function shareViaFacebook() {
window.open(
"https://facebook.com/sharer/sharer.php?u=" +
"https://developer.mozilla.org/en/HTML/Element/Using_HTML_context_menus",
);
}
function incFont() {
document.getElementById("fontSizing").style.fontSize = "larger";
}
function decFont() {
document.getElementById("fontSizing").style.fontSize = "smaller";
}
function changeImage() {
var index = Math.ceil(Math.random() * 39 + 1);
document.images[0].src =
"https://developer.mozilla.org/media/img/promote/promobutton_mdn" +
index +
".png";
}
结果
规范
contextmenu 属性已经过时,将从所有浏览器中删除。
浏览器兼容性
BCD tables only load in the browser