在mousemove上對scrollLeft和scrollTop進行動畫處理

Question

我想基於鼠標光標的移動來滾動HTML頁面，以便在任何方向（X和Y）上移動鼠標光標時，頁面的滾動條都會隨之移動，從而滾動頁面。 我還希望滾動具有緩和效果，以便在移動鼠標時稍有延遲。

我有一個工作的原型（不放松）： https : //jsfiddle.net/ssq7cda4/12/

$(document).mousemove(function (e) {
    var winW = $(window).width(),
        docW = $(this).width() - winW,
        i = docW / winW, //increment value
        x = (e.pageX - $(window).scrollLeft()) * i;

    //$(window).scrollLeft(x);
    //$("html, body").animate({scrollLeft:x}, 500, 'swing');
    $("html, body").scrollLeft(x);
});

$(document).mousemove(function (e) {
    var winW = $(window).height(),
        docW = $(this).height() - winW,
        i = docW / winW, //increment value
        x = (e.pageY - $(window).scrollTop()) * i;

    //$("html, body").animate({scrollTop:x}, 500, 'swing');
    $(window).scrollTop(x);
});

唯一的問題是，我還沒有找到將緩動添加到滾動中的方法。 使用.animate會使滾動變得鋸齒而奇怪。 如何基於鼠標移動來使滾動動畫化？

Answer 1

這對您不起作用嗎？

 var win=$(window),doc=$(document); var winWidth=win.width(),winHeight=win.height(); var docWidth=doc.width()-winWidth,docHeight=doc.height()-winHeight; var increment=0,x=0,y=0; doc.on('mousemove',function(e){ increment=docWidth/winWidth; x=(e.pageX-win.scrollLeft())*increment; increment=docHeight/winHeight; y=(e.pageY-win.scrollTop())*increment; $('html,body').stop().animate({scrollLeft:x,scrollTop:y}); }); 

 #canvas { width: 3000px; height: 2000px; background: #ededed; } .content { position: absolute; border: 3px solid pink; width: 300px; height: 300px; padding: 30px; } #island1 { top: 200px; left: 400px; } #island2 { top: 300px; left: 1700px; } #island3 { top: 700px; left: 1400px; } #island4 { top: 1200px; left: 1900px; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="canvas"> <div class="content" id="island1"><p>Hello world!</p></div> <div class="content" id="island2"><p>Hello world!</p></div> <div class="content" id="island3"><p>Hello world!</p></div> <div class="content" id="island4"><p>Hello world!</p></div> </div> 

希望它能有所幫助。

更新：

嘗試這個：

 window.requestAnimFrame = (function () { return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function (callback) { window.setTimeout(callback, 1000 / 60); }; })(); var win=$(window),doc=$(document),canvas=$('#canvas'); var winWidth=win.width(),winHeight=win.height(); var docWidth=doc.width()-winWidth,docHeight=doc.height()-winHeight; var increment=0,x=0,y=0,mouseX=0,mouseY=0,damping=10; requestAnimFrame(render); doc.on('mousemove',function(e){ // see [http://stackoverflow.com/a/23202637/3344111] mouseX=e.pageX*(canvas.width()-winWidth)/winWidth; mouseY=e.pageY*(canvas.height()-winHeight)/winHeight; }); function render(){ requestAnimFrame(render); // see [http://stackoverflow.com/a/4847893] & [http://stackoverflow.com/a/4315833] x+=(-mouseX-x)/damping; y+=(-mouseY-y)/damping; canvas.css({'-webkit-transform':'translate('+x+'px,'+y+'px)'}); } 

 #canvas { width: 3000px; height: 2000px; background: #ededed; } .content { position: absolute; border: 3px solid pink; width: 300px; height: 300px; padding: 30px; } #island1 { top: 200px; left: 400px; } #island2 { top: 300px; left: 1700px; } #island3 { top: 700px; left: 1400px; } #island4 { top: 1200px; left: 1900px; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script> <div id="canvas"> <div class="content" id="island1"><p>island1</p></div> <div class="content" id="island2"><p>island2</p></div> <div class="content" id="island3"><p>island3</p></div> <div class="content" id="island4"><p>island4</p></div> </div> 

有幫助嗎？