一、让一个div拖动
<!doctype html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Jquery：鼠标拖动DIV</title> <style type="text/css"> div#computerMove{ position:absolute; top:50px; left:50px; width:200px; height:30px; line-height:30px; background-color:#00CCCC; text-align:center; color:#FFFFFF; cursor:default; } </style> </head> <body> <div id="computerMove">点击我拖动</div> <script src="js/jquery-1.11.0.min.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function(){ var $div = $("div#computerMove"); /* 绑定鼠标左键按住事件 */ $div.bind("mousedown",function(event){ /* 获取需要拖动节点的坐标 */ var offset_x = $(this)[0].offsetLeft;//x坐标 var offset_y = $(this)[0].offsetTop;//y坐标 /* 获取当前鼠标的坐标 */ var mouse_x = event.pageX; var mouse_y = event.pageY; /* 绑定拖动事件 */ /* 由于拖动时，可能鼠标会移出元素，所以应该使用全局（document）元素 */ $(document).bind("mousemove",function(ev){ /* 计算鼠标移动了的位置 */ var _x = ev.pageX - mouse_x; var _y = ev.pageY - mouse_y; /* 设置移动后的元素坐标 */ var now_x = (offset_x + _x ) + "px"; var now_y = (offset_y + _y ) + "px"; /* 改变目标元素的位置 */ $div.css({ top:now_y, left:now_x }); }); }); /* 当鼠标左键松开，接触事件绑定 */ $(document).bind("mouseup",function(){ $(this).unbind("mousemove"); }); }) </script> </body> </html>
二、让一个panel拖动加拉大拉小
<!doctype html> <html> <head> <meta charset="utf-8"> <title>jQuery拖放</title> <script type="text/javascript" src="js/jquery-1.11.0.min.js"></script> <script type="text/javascript" src="dd.js"></script> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <style type="text/css"> body { background-color: #eee; } .dragBox_MrY { width: 200px; height: 100px; cursor: move; position: absolute; top: 30px; left: 30px; background-color: #FFF; border: 1px solid #CCCCCC; -webkit-box-shadow: 10px 10px 25px #ccc; -moz-box-shadow: 10px 10px 25px #ccc; box-shadow: 10px 10px 25px #ccc; } .main_tabletop { width: 100%; height: 20px; background: #ffee00; } </style> </head> <body> <div class="dragBox_MrY"> <div class="main_tabletop">我是可以拖动的标题</div> 左、右、下、左下、右下都可放大缩小 </div> </body> </html>
dd.js
$(function() { $(document).mousemove(function(e) { if (!!this.move) { var posix = !document.move_target ? {'x': 0, 'y': 0} : document.move_target.posix, callback = document.call_down || function() { $(this.move_target).css({ 'top': e.pageY - posix.y, 'left': e.pageX - posix.x }); }; callback.call(this, e, posix); } }).mouseup(function(e) { if (!!this.move) { var callback = document.call_up || function(){}; callback.call(this, e); $.extend(this, { 'move': false, 'move_target': null, 'call_down': false, 'call_up': false }); } }); var $box = $('.dragBox_MrY .main_tabletop').mousedown(function(e) { var $p = $(this).parent(); var $pp = $p[0]; var offset = $p.offset(); $pp.posix = {'x': e.pageX - offset.left, 'y': e.pageY - offset.top}; $.extend(document, {'move': true, 'move_target':$pp }); }); $('.dragBox_MrY').bind( {'mousemove':function(e){ $(this).css({cursor: "default"}); var offset = $(this).offset(), resize=true; var x = e.clientX, y = e.clientY, t = offset.top, l = offset.left, w = $(this).width(), h = $(this).height(), ww = $('.main_tabletop').height(), b = 10; if(x<(l+b) && y > (t+ww) && y < (t+h-b)){ $(this).css({cursor: "w-resize"}); $(this).unbind("mousedown").bind({"mousedown":function(e){ var $p = $(this); var posix = { 'w': $p.width(), 'h': $p.height(), 'x': e.pageX, 'y': e.pageY }; $.extend(document, {'move': true, 'call_down': function(e) { $p.css({ 'width': Math.max(30, posix.x-e.pageX + posix.w), 'left': Math.max(30, e.pageX) }); }}); }}); }else if(x<(l+w) && x>(l+w-b) && y > (t+ww) && y < (t+h-b)){ $(this).css({cursor: "e-resize"}); $(this).unbind("mousedown").bind({"mousedown":function(e){ var $p = $(this); var posix = { 'w': $p.width(), 'x': e.pageX }; resizeBox($p, posix, e); }}); }else if(y<(t+h) && y>(t+h-b) && x>(l+b) && x<(l+w-b)){ $(this).css({cursor: "s-resize"}); $(this).unbind("mousedown").bind({"mousedown":function(e){ var $p = $(this); var posix = { 'h': $p.height(), 'y': e.pageY }; resizeBox($p, posix, e); } }); }else if(x<(l+b) && y>(t+h-b) && y<(t+h)){ $(this).css({cursor: "sw-resize"}); $(this).unbind("mousedown").bind({"mousedown":function(e){ var $p = $(this); var posix = { 'w': $p.width(), 'h': $p.height(), 'x': e.pageX, 'y': e.pageY }; $.extend(document, {'move': true, 'call_down': function(e) { $p.css({ 'width': Math.max(30, posix.x-e.pageX + posix.w), 'height': Math.max(30, e.pageY - posix.y + posix.h), 'left': Math.max(30, e.pageX) }); }}); }}); }else if(y<(t+h) && y>(t+h-b) && x<(l+w) && x>(l+w-b)){ $(this).css({cursor: "se-resize"}); $(this).unbind("mousedown").bind({"mousedown":function(e){ var $p = $(this); var posix = { 'w': $p.width(), 'h': $p.height(), 'x': e.pageX, 'y': e.pageY }; $.extend(document, {'move': true, 'call_down': function(e) { $p.css({ 'width': Math.max(30, e.pageX - posix.x + posix.w), 'height': Math.max(30, e.pageY - posix.y + posix.h) }); }}); } }); }else if(y<(t+ww) && x>l && x<(l+w)){ $(this).css({cursor: "move"}); $(this).unbind("mousedown"); } }, "mouseup":function(){ $(this).unbind("mousedown"); } }); function resizeBox($p,posix,e){ $.extend(document, {'move': true, 'call_down': function(e) { $p.css({ 'width': Math.max(30, e.pageX - posix.x + posix.w), 'height': Math.max(30, e.pageY - posix.y + posix.h) }); }}); } });
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