Javascript Ctrl+S 在 Chrome 中防止默认
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Ctrl+S preventDefault in Chrome
提问by zupa
I Want to catch Ctrl+Sin Chrome, and prevent the default browser behavior to save the page. How?
我想在 Chrome 中捕获Ctrl+ S，并阻止默认浏览器行为来保存页面。如何？
(Just posting the question & answer as I was after this for a pretty long time and didn't find a solution)
（只是发布问题和答案，因为我在这之后很长一段时间没有找到解决方案）
回答by zupa
As far as I can see, the secret sauce is, that Ctrl+Sdoes NOT fire the keypress event, only the keydown event.
据我所知，秘诀是，Ctrl+S不会触发 keypress 事件，只会触发 keydown 事件。
Using jQuery.hotkeys:
$(document).bind('keydown', 'ctrl+s', function(e) {
e.preventDefault();
alert('Ctrl+S');
return false;
});
Only with jQuery:
仅使用 jQuery：
$(document).bind('keydown', function(e) {
if(e.ctrlKey && (e.which == 83)) {
e.preventDefault();
alert('Ctrl+S');
return false;
}
});
Edit 2012.12.17- jQuery.hotkeys says
编辑 2012.12.17- jQuery.hotkeys 说
Hotkeys aren't tracked if you're inside of an input element (unless you explicitly bind the hotkey directly to the input). This helps to avoid conflict with normal user typing.
如果您在输入元素内，则不会跟踪热键（除非您明确将热键直接绑定到输入）。这有助于避免与普通用户键入发生冲突。
回答by BumbleB2na
"Borrowed" from Overriding control+s (save functionality) in browser
从浏览器中的 Overriding control+s（保存功能）“借用”
document.addEventListener("keydown", function(e) {
if (e.keyCode == 83 && (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey)) {
e.preventDefault();
alert('captured');
}
}, false);
回答by Latha
document.onkeydown = function (e) {
e = e || window.event;//Get event
if (e.ctrlKey) {
var c = e.which || e.keyCode;//Get key code
switch (c) {
case 83://Block Ctrl+S
e.preventDefault();
e.stopPropagation();
break;
}
}
};
回答by suraj kumar
All in one solution to prevent data
防止数据泄露的多合一解决方案
// disable right click
$(function() {
$(this).bind("contextmenu", function(e) {
e.preventDefault();
});
});
// Prevent F12
$(document).keydown(function (event) {
if (event.keyCode == 123) { // Prevent F12
return false;
} else if (event.ctrlKey && event.shiftKey && event.keyCode == 73) { // Prevent Ctrl+Shift+I
return false;
}
});
//stop copy of content
function killCopy(e){
return false
}
function reEnable(){
return true
}
document.onselectstart=new Function ("return false")
if (window.sidebar){
document.onmousedown=killCopy
document.onclick=reEnable
}
// prevent ctrl + s
$(document).bind('keydown', function(e) {
if(e.ctrlKey && (e.which == 83)) {
e.preventDefault();
return false;
}
});
