Question

我正在寻求帮助，因为我的javascript仅在我重新加载网页后运行。脚本是连接到光标的镜头。如果将鼠标悬停在图像上，则应在其旁边的另一个（+）div中显示相同图像的放大部分。它只适用于第一页：

如果我在另一个页面上使用相同的脚本，则会发生这种情况：

如果你重新加载第二个例子，脚本突然工作。

你有什么想法吗？

这是剧本：

   <script>
    function imageZoom(imgID, resultID) {
    var img, lens, result, cx, cy;
    img = document.getElementById(imgID);
    result = document.getElementById(resultID);
    /*create lens:*/
    lens = document.createElement("DIV");
    lens.setAttribute("class", "img-zoom-lens");
    /*insert lens:*/
    img.parentElement.insertBefore(lens, img);
    /*calculate the ratio between result DIV and lens:*/
    cx = result.offsetWidth / lens.offsetWidth;
    cy = result.offsetHeight / lens.offsetHeight;
    /*set background properties for the result DIV:*/
    result.style.backgroundImage = "url('" + img.src + "')";
    result.style.backgroundSize = (img.width * cx) + "px " + (img.height * cy) + "px";
    /*execute a function when someone moves the cursor over the image, or the lens:*/
    lens.addEventListener("mousemove", moveLens);
    img.addEventListener("mousemove", moveLens);
    /*and also for touch screens:*/
    lens.addEventListener("touchmove", moveLens);
    img.addEventListener("touchmove", moveLens);
    function moveLens(e) {
    var pos, x, y;
    /*prevent any other actions that may occur when moving over the image:*/
    e.preventDefault();
    /*get the cursor's x and y positions:*/
    pos = getCursorPos(e);
    /*calculate the position of the lens:*/
    x = pos.x - (lens.offsetWidth / 2);
    y = pos.y - (lens.offsetHeight / 2);
    /*prevent the lens from being positioned outside the image:*/
    if (x > img.width - lens.offsetWidth) {x = img.width - lens.offsetWidth;}
    if (x < 0) {x = 0;}
    if (y > img.height - lens.offsetHeight) {y = img.height - lens.offsetHeight;}
    if (y < 0) {y = 0;}
    /*set the position of the lens:*/
    lens.style.left = x + "px";
    lens.style.top = y + "px";
    /*display what the lens "sees":*/
    result.style.backgroundPosition = "-" + (x * cx) + "px -" + (y * cy) + "px";
    }
    function getCursorPos(e) {
    var a, x = 0, y = 0;
    e = e || window.event;
    /*get the x and y positions of the image:*/
    a = img.getBoundingClientRect();
    /*calculate the cursor's x and y coordinates, relative to the image:*/
    x = e.pageX - a.left;
    y = e.pageY - a.top;
    /*consider any page scrolling:*/
    x = x - window.pageXOffset;
    y = y - window.pageYOffset;
    return {x : x, y : y};
    }
    }

</script>       


      <script>
  // tell the embed parent frame the height of the content
  if (window.parent && window.parent.parent){
    window.parent.parent.postMessage(["resultsFrame", {
      height: document.body.getBoundingClientRect().height,
      slug: "UrU9S"
    }], "*")
  }
</script>

谢谢你们！

Javascript仅在页面刷新后运行

0 个答案: