emulate clipboardData in non-IE browser
当前为
// ==UserScript==
// @name clipboardData Emulator
// @namespace com.ayanamist.clipboardData
// @version 0.4
// @description emulate clipboardData in non-IE browser
// @include http*
// @run-at document-start
// @grant unsafeWindow
// ==/UserScript==
(function () {
'use strict';
if (unsafeWindow.window.clipboardData) {
return;
}
var textareaId = 'clipboardEmu';
unsafeWindow.window.clipboardData = {
clearData: function () {
return true;
},
getData: function () {
return '';
},
setData: function (format, data) {
// Prevent multiple textarea instance.
var clipboard = document.getElementById(textareaId);
if (!clipboard) {
clipboard = document.createElement("textarea");
clipboard.style.float = 'left';
clipboard.style.position = 'fixed';
clipboard.style.left = 0;
clipboard.style.top = 0;
clipboard.style.width = '400px';
clipboard.style.height = '300px';
clipboard.style.zIndex = 9999;
clipboard.id = textareaId;
clipboard.readOnly = true;
document.getElementsByTagName('body')[0].appendChild(clipboard);
}
clipboard.textContent = data;
clipboard.focus();
clipboard.select();
var closeClipboard = function () {
clipboard.parentNode.removeChild(clipboard);
clipboard = null;
};
clipboard.onkeydown = function (evt) {
if(evt.which == 27){ // Esc
closeClipboard();
}
};
clipboard.oncut = clipboard.oncopy = function () {
setTimeout(closeClipboard, 0);
return true;
};
return true;
},
files: [],
};
})();