copy_to_clipboard

copy_to_clipboard.js

(function(global, undefined){
    function copyToClipboard(content, successCallback) {
        successCallback = successCallback || alert.bind(this, '复制成功');
        //      http://stackoverflow.com/questions/400212/how-do-i-copy-to-the-clipboard-in-javascript
        //      IE 8
        if(window.clipboardData) {
            window.clipboardData.setData('Text', content);
            e.preventDefault();
        }
        //      IE 9 以及现代浏览器
        else {
            var textArea = document.createElement('textarea');
            textArea.style.position = 'fixed';
            textArea.style.top = 0;
            textArea.style.left = 0;
            textArea.style.width = '1px';
            textArea.style.height = '1px';
            textArea.style.padding = 0;
            textArea.style.border = 'none';
            textArea.style.outline = 'none';
            textArea.style.boxShadow = 'none';
            textArea.style.background = 'transparent';
            document.body.appendChild(textArea);
            textArea.value = content;
            textArea.select();

            try {
                var successful = document.execCommand('copy');
                if(successful){
                    successCallback();
                }
                else {
                    prompt("请按 Ctrl+C 复制内容", content);
                }
            } catch (err) {
                console.log('Oops, unable to copy');
            }

            document.body.removeChild(textArea);

        }
    }

    global.copyToClipboard = copyToClipboard;
})(window, undefined);