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jQuery实现鼠标拖动div改变位置、大小的实践

时间:2022-02-27 17:11     来源/作者:As_zyh

       实现类似windows窗体的效果,在中间拖动改变div位置,在边缘拖动改变div大小,鼠标在相应的位置改变成相应的形状
效果如图: (截图没显示鼠标)

jQuery实现鼠标拖动div改变位置、大小的实践

jQuery实现鼠标拖动div改变位置、大小的实践

jQuery实现鼠标拖动div改变位置、大小的实践

代码如下:

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$(".test1").mousemove(function(e){
    $(".test1").unbind("mousedown");
    $(".test1").css("cursor","default");
    //$("span > b").text(parseInt($("div").width()));
    var left = $(".test1").offset().left;
    var top = $(".test1").offset().top;
 
    // 如果鼠标在中间
    if(e.clientX - left > 10 && e.clientX-left < parseInt($(".test1").width()) - 10
    && e.clientY - top  > 10 && e.clientY-top  < parseInt($(".test1").height()) - 10) {
        $(".test1").css("cursor","move");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var x = e.pageX - $(".test1").offset().left;
            var y = e.pageY - $(".test1").offset().top;
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"left":e.pageX - x, "top":e.pageY - y});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
    
    //如果鼠标在左上角
    if(e.clientX - left < 10 && e.clientY - top < 10) {
        $(".test1").css("cursor","nw-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var y = e.pageY - $(".test1").offset().top;
            var h = e.pageY + parseInt($(".test1").css("height"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"height":h - e.pageY, "top":e.pageY - y});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var x = e.pageX - $(".test1").offset().left;
            var w = e.pageX + parseInt($(".test1").css("width"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"width":w - e.pageX, "left":e.pageX - x});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
 
    //如果鼠标在上
    if(e.clientY - top < 10 && e.clientX - left > 10 && e.clientX-left < parseInt($(".test1").width()) - 10) {
        $(".test1").css("cursor","n-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var y = e.pageY - $(".test1").offset().top;
            var h = e.pageY + parseInt($(".test1").css("height"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"height":h - e.pageY, "top":e.pageY - y});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
 
    //如果鼠标在右上角
    if(e.clientY - top < 10 && e.clientX-left > parseInt($(".test1").width()) - 10) {
        $(".test1").css("cursor","ne-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var y = e.pageY - $(".test1").offset().top;
            var h = e.pageY + parseInt($(".test1").css("height"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"height":h - e.pageY, "top":e.pageY - y});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var x = e.pageX - $(".test1").offset().left;
            var w = e.pageX - parseInt($(".test1").css("width"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"width":e.pageX - w});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
 
    //如果鼠标在右
    if(e.clientX-left > parseInt($(".test1").width()) - 10 && e.clientY - top > 10 && e.clientY-top  < parseInt($(".test1").height()) - 10) {
        $(".test1").css("cursor","e-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var x = e.pageX - $(".test1").offset().left;
            var w = e.pageX - parseInt($(".test1").css("width"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"width":e.pageX - w});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
 
    //如果鼠标在右下
    if(e.clientX-left > parseInt($(".test1").width()) - 10 && e.clientY-top  > parseInt($(".test1").height()) - 10) {
        $(".test1").css("cursor","se-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var x = e.pageX - $(".test1").offset().left;
            var w = e.pageX - parseInt($(".test1").css("width"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"width":e.pageX - w});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var y = e.pageY - $(".test1").offset().top;
            var h = e.pageY - parseInt($(".test1").css("height"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"height":e.pageY - h});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
 
    //如果鼠标在下
    if(e.clientY-top  > parseInt($(".test1").height()) - 10 && e.clientX - left > 10 && e.clientX-left < parseInt($(".test1").width()) - 10) {
        $(".test1").css("cursor","s-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var y = e.pageY - $(".test1").offset().top;
            var h = e.pageY - parseInt($(".test1").css("height"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"height":e.pageY - h});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
 
    //如果鼠标在左下
    if(e.clientY-top  > parseInt($(".test1").height()) - 10 && e.clientX - left < 10) {
        $(".test1").css("cursor","sw-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var x = e.pageX - $(".test1").offset().left;
            var w = e.pageX + parseInt($(".test1").css("width"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"width":w - e.pageX, "left":e.pageX - x});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var y = e.pageY - $(".test1").offset().top;
            var h = e.pageY - parseInt($(".test1").css("height"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"height":e.pageY - h});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
    
    //如果鼠标在左
    if(e.clientX - left < 10 && e.clientY - top > 10 && e.clientY-top < parseInt($(".test1").height()) - 10) {
        $(".test1").css("cursor","w-resize");
        $(".test1").mousedown(function(e) {
            var ismove = true;
            var x = e.pageX - $(".test1").offset().left;
            var w = e.pageX + parseInt($(".test1").css("width"));
            $(document).mousemove(function(e) {
                if(ismove) {
                    $(".test1").css({"width":w - e.pageX, "left":e.pageX - x});
                }
            }).mouseup(function() {
                ismove = false;
            });
        });
    }
});

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原文链接:https://blog.csdn.net/As_zyh/article/details/115529935

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