touch.js拖动、缩放、旋转(鼠标手势)功能代码-创新互联
可以实现手势操作:拖动、缩放、旋转。封装好的脚本方法是这样的:
创新互联是一家专注于成都网站设计、成都做网站与策划设计,宜昌网站建设哪家好?创新互联做网站,专注于网站建设10年,网设计领域的专业建站公司;建站业务涵盖:宜昌等地区。宜昌做网站价格咨询:028-86922220var cat = window.cat || {}; cat.touchjs = { left: 0, top: 0, scaleVal: 1, //缩放 rotateVal: 0, //旋转 curStatus: 0, //记录当前手势的状态, 0:拖动, 1:缩放, 2:旋转 //初始化 init: function ($targetObj, callback) { touch.on($targetObj, 'touchstart', function (ev) { cat.touchjs.curStatus = 0; ev.preventDefault();//阻止默认事件 }); if (!window.localStorage.cat_touchjs_data) callback(0, 0, 1, 0); else { var jsonObj = JSON.parse(window.localStorage.cat_touchjs_data); cat.touchjs.left = parseFloat(jsonObj.left), cat.touchjs.top = parseFloat(jsonObj.top), cat.touchjs.scaleVal = parseFloat(jsonObj.scale), cat.touchjs.rotateVal = parseFloat(jsonObj.rotate); callback(cat.touchjs.left, cat.touchjs.top, cat.touchjs.scaleVal, cat.touchjs.rotateVal); } }, //拖动 drag: function ($targetObj, callback) { touch.on($targetObj, 'drag', function (ev) { $targetObj.css("left", cat.touchjs.left + ev.x).css("top", cat.touchjs.top + ev.y); }); touch.on($targetObj, 'dragend', function (ev) { cat.touchjs.left = cat.touchjs.left + ev.x; cat.touchjs.top = cat.touchjs.top + ev.y; callback(cat.touchjs.left, cat.touchjs.top); }); }, //缩放 scale: function ($targetObj, callback) { var initialScale = cat.touchjs.scaleVal || 1; var currentScale; touch.on($targetObj, 'pinch', function (ev) { if (cat.touchjs.curStatus == 2) { return; } cat.touchjs.curStatus = 1; currentScale = ev.scale - 1; currentScale = initialScale + currentScale; cat.touchjs.scaleVal = currentScale; var transformStyle = 'scale(' + cat.touchjs.scaleVal + ') rotate(' + cat.touchjs.rotateVal + 'deg)'; $targetObj.css("transform", transformStyle).css("-webkit-transform", transformStyle); callback(cat.touchjs.scaleVal); }); touch.on($targetObj, 'pinchend', function (ev) { if (cat.touchjs.curStatus == 2) { return; } initialScale = currentScale; cat.touchjs.scaleVal = currentScale; callback(cat.touchjs.scaleVal); }); }, //旋转 rotate: function ($targetObj, callback) { var angle = cat.touchjs.rotateVal || 0; touch.on($targetObj, 'rotate', function (ev) { if (cat.touchjs.curStatus == 1) { return; } cat.touchjs.curStatus = 2; var totalAngle = angle + ev.rotation; if (ev.fingerStatus === 'end') { angle = angle + ev.rotation; } cat.touchjs.rotateVal = totalAngle; var transformStyle = 'scale(' + cat.touchjs.scaleVal + ') rotate(' + cat.touchjs.rotateVal + 'deg)'; $targetObj.css("transform", transformStyle).css("-webkit-transform", transformStyle); $targetObj.attr('data-rotate', cat.touchjs.rotateVal); callback(cat.touchjs.rotateVal); }); } };
另外有需要云服务器可以了解下创新互联建站www.cdcxhl.com,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。
网站标题:touch.js拖动、缩放、旋转(鼠标手势)功能代码-创新互联
当前路径:http://pwwzsj.com/article/jphss.html