Question

我的代码工作正常，但我遇到了一些问题。第一个问题涉及浏览器拖动图像的能力，当它出现“停止信号”时，它会破坏代码。有时信号出现（firefox），有时不出现。我不知道为什么。第二个问题涉及div之外的文本。当用户拖动图像时，外部文本被选中。我可以解决谁？

如果运行代码，则需要140px宽度的图像。

代码：

<div style="position: relative; height: 100px; width: 100px; overflow: hidden;" class="img-profile">
    <div id="crop" style="position: absolute; width: 140px; left: -20px; height: 140px; top: 0px; background: url(/image/user/teste.jpg) no-repeat; cursor: move;"></div>
</div>

var x = 0; 
var y = 0;

$(document).ready(function () {

    $("#crop").mousedown(function () {

        var crop = $(this);

        $(document).mousemove(function (e) {

        var x_movement = 0;
            var y_movement = 0;

            if (x == e.pageX || x == 0) {
                x = e.pageX;
            } else {
                x_movement = e.pageX - x;
                x = e.pageX;
            }

            if (y == e.pageY || y == 0) {
                y = e.pageY;
            } else {
                y_movement = e.pageY - y;
                y = e.pageY;
            }

            var left = parseFloat(crop.css("left")) + x_movement;
            var min_left = 0;
            var max_left = -40;
            if (left >= min_left) left = min_left;
            if (left <= max_left) left = max_left;
            crop.css("left", left);

            var top = parseFloat(crop.css("top")) + y_movement;
            var min_top = 0;
            var max_top = (parseFloat(crop.css("height")) - 100) * -1;
            if (top >= min_top) top = min_top;
            if (top <= max_top) top = max_top;
            crop.css("top", top);

        });

    });

    $(document).mouseup(function () {

        x = 0;
        y = 0;
        $(document).unbind("mousemove");

    });

});

Answer 1

注意，将crop div更改为输入可以解决这两个问题。

<input type="button" id="crop" style="position: absolute; width: 140px; left: -20px; height: 140px; top: 0px; background: url(/image/user/teste.jpg) no-repeat; cursor: move; border: 0px;" />

在jQuery中移动图像（图像裁剪）

1 个答案: