js完美的div拖曳實例程式碼_javascript技巧

複製程式碼 程式碼如下:

拖曳庫 div, h2,p{邊距:0;填滿: 0;} 正文{字體:14px/1.5 arial;} #box{寬度:100px;高度:100px;背景:#fef4eb;填充:5px;邊距:50px;邊框:1px 實體#f60 ;} #box .title{高度:25px;背景:#f60;} #tool{margin-bottom:10px;} function Drag() { //初始化 this.initialize.apply(this, argument) } Drag.prototype = { 初始化 initialize : function (drag, options) { this.drag = this.$(drag); this._x = this ._y = 00; this.bind(this, this.moveDrag); this._stopDrag = this.bind(this, this.stopDrag);

this.setOptions (選項);

this.setOptions (選項); <> handle = this.$(this.options.handle); this.maxContainer = this.$(this.options.maxContainer);

這個.maxTop = Math.max(this.> this.maxLeft = Math.max(this.maxContainer.clientWidth, this.maxContainer.scrollWidth) - this.drag.offsetWidth 🎜>🎜> this.limit = this.options.limit; this.lockX = this.options.lockX; this.lockY = this.options.lockX = this.options.lockX; this.lockY = this.options.lockY; this.lock = .options.this;

this.onStart = this.options.onStart; this.onMove = this.options.onMove; this.onStop = this.options.onStop; this.onStop = this.options .onStop; this.onStop = this.options .onStop; < .style.cursor = "move";

this.changeLayout();

this.addHandler(this.handle, "mousedown" , this.bind(this, this.startDrag)) }, changeLayout : function () { this.drag.style.top = this.drag.offsetTop "px"; left.thisg.style.offsetTop "px"; drag.offsetLeft "px"; this.drag.style.position = "absolute"; this.drag.style.margin = "0" }, ragD : { var event = event || window.event;

this._x = event.clientX - this.drag.offsetLeft; drag.offsetTop;

this.addHandler (document, "mousemove", this._moveDrag); this.addHandler(document, "mouseup", this._stopDeventrag> .preventDefault && event.preventDefault(); this .handle.setCapture && this.handle.setCapture();

this.onStart() ） { var event = event | | window.event;

var iTop = event.clientY - this._y; var iTop = event.clientY - this._y; 🎜> if (this.lock) return;

this.limit && (iTop .maxTop &this (iTop = this.maxTop), iLeft > this.maxLeft && (iLeft = this.maxLeft));

this.lockY || (this.drag.style.top = iTop "px"); this.lockX || (this.drag.style.left = iLeft "px");

event.preventDefault && event.preventDefault();

🎜> }, stopDrag : function () { this.removeHandler(document, "mousemove", this._moveDrag); );

this.handle.releaseCapture && this.handle.releaseCapture();

this.onStop() }, this.onStop() }, this.onStop() }, 函數（選項） { this.options = { handle: this.drag, // //鎖定位置 lockX: false, // 鎖定水平位置 lockY: false, // 鎖定垂直位置 maxContainer: >ent.documentElement. onStart: function () {}, //開始時回呼函數 onMove: function () {}, //拖曳時回呼函數 onStop: > }; for (var p in options) this.options[p] = options[p] }, //ID を取得 $ : function (id) { return typeof id === "string" ? document.getElementById(id) : id }, //バインディングイベントを追加します addHandler: function (oElement, sEventType, fnHandler) { return oElement.addEventListener ? oElement.addEventListener(sEventType, fnHandler, false) : oElement.attachEvent("on" sEventType , fnHandler) }, //バインドされたイベントを削除します RemoveHandler: function (oElement, sEventType, fnHandler) { return oElement.removeEventListener ? oElement.removeEventListener(sEventType, fnHandler, false) : oElement.detachEvent("on" sEventType, fnHandler) }, //イベントをオブジェクトにバインド binding: function (object, fnHandler) { return function ( ) { return fnHandler.apply(object, argument) } } }; //Application window.onload = function () { var oBox = document.getElementById("box"); var oTitle = oBox.getElementsByTagName("h2")[ 0]; var oSpan = document.getElementsByTagName("span")[0]; var oDrag = new Drag(oBox, {handle:oTitle, limit:false});

var aInput = document.getElementsByTagName("input");

//ロック範囲インターフェース aInput[0].onclick = function () { oDrag.limit = !oDrag.limit ; this.value = oDrag.limit ? "ロック範囲" : "ロック範囲" };

//水平ロック インターフェイス aInput[1].onclick = function ( ) { oDrag.lockX = !oDrag.lockX; this.value = oDrag.lockX ? "水平ロックを解除" : "水平ロック" };

/ /垂直ロック インターフェイス aInput[2].onclick = function () { oDrag.lockY = !oDrag.lockY; this.value = oDrag.lockY "垂直ロックをキャンセルします": "垂直ロック" };

//ロック位置インターフェイス aInput[3].onclick = function () { oDrag.lock = !oDrag.lock; this.value = oDrag.lock ? "位置のロックを解除" : "位置のロック" };

//ドラッグ開始時のメソッド oDrag.onStart = function () { oSpan.innerHTML = "ドラッグ開始" };

//ドラッグ開始時のメソッド oDrag.onMove = function () { oSpan .innerHTML = "left :" this.drag.offsetLeft ", top:" this.drag.offsetTop };

//ドラッグ開始時のメソッド oDrag.onStop = function () { oSpan.innerHTML = "ドラッグ終了" }; }; gt; ドラッグ アンド ドロップのステータス: 未開始

js完美的div拖曳實例程式碼_javascript技巧

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