<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>jQuery - Drag</title> <style> .modal { position: fixed; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(100, 100, 100, 0.5); z-index: 2001; } .modal-content { position: absolute; width: 500px; height: 300px; left: 50%; margin-left: -250px; margin-top: 100px; border: 10px solid rgba(150, 150, 150, 0.5); background-color: white; text-align: center; } .modal-title { height: 38px; border-bottom: 1px solid blue; text-align: left; padding: 0 10px; font-weight: bold; cursor: move; } .modal-title div { display: inline-block; font-size: larger; line-height: 2; padding: 0 8px; } .modal-title .modal-close { float: right; cursor: pointer; } .modal-title .modal-close:hover { background-color: rgb(198, 236, 236); } </style> </head> <body> <div> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> <p>This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. This is backend content. </p> </div> <div id="idModal" class="modal"> <div id="idModalDetail" class="modal-content"> <div id="idModalTitle" class="modal-title"> <div>可拖动</div> <div class="modal-close">X</div> </div> <div class="modal-body">This is drag modal</div> </div> </div> <script type="text/javascript" src="./jquery-2.2.4.js"></script> <script> // 拖动时，偶发选中文本，将该选择功能禁用 function cancelUserSelect(ele) { if (!ele) return false; document.body.style.userSelect = 'none'; document.body.style.webkitUserSelect = 'none'; document.body.style.msUserSelect = 'none'; document.body.style.mozUserSelect = 'none'; ele.style.userSelect = 'none'; ele.style.webkitUserSelect = 'none'; ele.style.msUserSelect = 'none'; ele.style.mozUserSelect = 'none'; } // 恢复禁用的文本选择功能 function restoreUserSelect(ele) { if (!ele) return false; document.body.style.userSelect = 'text'; document.body.style.webkitUserSelect = 'text'; document.body.style.msUserSelect = 'text'; document.body.style.mozUserSelect = 'text'; ele.style.userSelect = 'text'; ele.style.webkitUserSelect = 'text'; ele.style.msUserSelect = 'text'; ele.style.mozUserSelect = 'text'; } function drag() { var $idModalTitle = $('#idModalTitle'); var $idDragModal = $idModalTitle.parent(); var mouseStartPoint = {left: 0, top: 0}; var mouseEndPoint = {left: 0, top: 0}; var oldPoint = {left: 0, top: 0}; var isDraging = false; $(document).on('mousedown', '.modal-title', function(e) { // 关闭按钮不进行移动 if ($(e.target).hasClass('modal-close')) return false; isDraging = true; mouseStartPoint = {left: e.clientX, top: e.clientY}; oldPoint = $idDragModal.offset(); // 鼠标离模态框边距值 cancelUserSelect($idDragModal.get(0)); }); $(document).on('mousemove', function(e) { if (!isDraging) return false; if ($idDragModal.css('margin-left') !== 0) { $idDragModal.css('margin-left', 0); } if ($idDragModal.css('margin-top') !== 0) { $idDragModal.css('margin-top', 0); } var mouseX = e.clientX; var mouseY = e.clientY; if (mouseX < 0) mouseX = 0; if (mouseY < 0) mouseY = 25; mouseEndPoint = {left: mouseX, top: mouseY}; var newPoint = { left: mouseEndPoint.left - (mouseStartPoint.left - oldPoint.left), top: mouseEndPoint.top - (mouseStartPoint.top - oldPoint.top) }; $idDragModal.offset(newPoint); }); $(document).on('mouseup', function(e) { if (!isDraging) return false; isDraging = false; restoreUserSelect($idDragModal.get(0)); }); } drag(); </script> </body> </html>