Javascript 拖动一个图像会使另一个图像被拖动
当我在mask1中拖动上传图像的右侧部分时,mask2中的上传图像正在拖动,但这不应该发生 这是 另外,如果我只上传遮罩1中的图像并尝试拖动,图像将消失,但如果我上传两个遮罩中的图像,图像将不会消失 代码笔:Javascript 拖动一个图像会使另一个图像被拖动,javascript,html,css,svg,css-mask,Javascript,Html,Css,Svg,Css Mask,当我在mask1中拖动上传图像的右侧部分时,mask2中的上传图像正在拖动,但这不应该发生 这是 另外,如果我只上传遮罩1中的图像并尝试拖动,图像将消失,但如果我上传两个遮罩中的图像,图像将不会消失 代码笔: { target_imgb.src=URL.createObjectURL(fileupb.files[0]); } 设prevX=0,prevY=0,translateX=0,translateY=0,scale=1,zoomFactor=0.1; 启动功能(evt){ if(evt
{
target_imgb.src=URL.createObjectURL(fileupb.files[0]);
}
设prevX=0,prevY=0,translateX=0,translateY=0,scale=1,zoomFactor=0.1;
启动功能(evt){
if(evt.dataTransfer&&evt.dataTransfer.setDragImage){
evt.dataTransfer.setDragImage(evt.target.nextElementSibling,0,0);
}
prevX=evt.clientX;
prevY=evt.clientY;
}
函数onDragOver(evt){
translateX+=evt.clientX-prevX;
translateY+=evt.clientY-prevY;
prevX=evt.clientX;
prevY=evt.clientY;
updateStyle();
}
函数updateStyle()
{
让transform=“translate(“+translateX+”px,“+translateY+”px)缩放(“+scale+”);
if(document.querySelector('#uploadedImg img'))
document.querySelector(“#uploadedImg img”).style.transform=transform;
}
onDragOverSec(evt)功能{
translateX+=evt.clientX-prevX;
translateY+=evt.clientY-prevY;
prevX=evt.clientX;
prevY=evt.clientY;
updateStyleSec();
}
函数updateStyleSec()
{
让transform=“translate(“+translateX+”px,“+translateY+”px)缩放(“+scale+”);
if(document.querySelector('#uploadedImg2 img'))
document.querySelector(“#uploadedImg2 img”).style.transform=transform;
}
编辑
是因为这两幅图像在水平方向和垂直方向上重叠了吗
编辑2
对于一些人来说,问题仍然不清楚,在下图中,如果用户尝试拖动B部分,同时拖动B部分、C部分和D部分,但这不应该发生
为什么要定义ondragover属性两次? 在任何情况下,在定义onDragOverSec之后,您稍后将其重写为onDragOverSec, 从而触发用于第一个元素的事件处理程序
<div class="minaimg masked-imgb" ondragover="onDragOverSec(event)"ondragover="onDragOver(event)" >
作为旁注,可以将这段代码重写得更详细,方法是将两个案例之间的差异作为变量传递给同一个函数,而不是每个函数的两个副本。您可以使用CSS clip path属性根据需要剪切HTML元素的角点。它很容易得到正确的价值通过工具,请谷歌'css剪辑路径生成器'
.masked-imga
-webkit-clip-path: polygon(0 9%, 0 0, 35% 0%, 49% 0, 56% 27%, 73% 46%, 100% 61%, 100% 100%, 65% 100%, 0 100%, 0 100%, 0 30%);
clip-path: polygon(0 9%, 0 0, 35% 0%, 49% 0, 56% 27%, 73% 46%, 100% 61%, 100% 100%, 65% 100%, 0 100%, 0 100%, 0 30%);
.masked-imgb
-webkit-clip-path: polygon(0 9%, 0 0, 35% 0%, 100% 0, 100% 0, 100% 0, 100% 61%, 100% 100%, 58% 100%, 40% 90%, 18% 63%, 0 39%);
clip-path: polygon(0 9%, 0 0, 35% 0%, 100% 0, 100% 0, 100% 0, 100% 61%, 100% 100%, 58% 100%, 40% 90%, 18% 63%, 0 39%);
因为元素彼此重叠,我认为最好的修复方法是设置
z-index
。这并不完美,当在元素之间切换时,您必须首先拖动未重叠的元素
fileupa.onchange=e=>{
target_imga.src=URL.createObjectURL(fileupa.files[0]);
//集z-指数
document.querySelector(“.masked imga”).style='z-index:'+zIndex++;
}
fileupb.onchange=e=>{
target_imgb.src=URL.createObjectURL(fileupb.files[0]);
//集z-指数
document.querySelector(“.masked imgb”).style='z-index:'+zIndex++;
}
设prevX=0,
prevY=0,
translateX=0,
translateY=0,
比例=1,
zoomFactor=0.1;
设zIndex=1;
启动功能(evt){
//设置父元素的z索引
evt.target.closest(“.minaimg”).style='z-index:'+zIndex++;
if(evt.target.nextElementSibling&&//fix if.nextElementSibling不是元素
evt.dataTransfer&&evt.dataTransfer.setDragImage){
evt.dataTransfer.setDragImage(evt.target.nextElementSibling,0,0);
}
prevX=evt.clientX;
prevY=evt.clientY;
}
函数onDragOver(evt){
translateX+=evt.clientX-prevX;
translateY+=evt.clientY-prevY;
prevX=evt.clientX;
prevY=evt.clientY;
updateStyle();
}
函数updateStyle(){
让transform=“translate(“+translateX+”px,“+translateY+”px)缩放(“+scale+”);
if(document.querySelector('#uploadedImg img'))
document.querySelector(“#uploadedImg img”).style.transform=transform;
}
onDragOverSec(evt)功能{
translateX+=evt.clientX-prevX;
translateY+=evt.clientY-prevY;
prevX=evt.clientX;
prevY=evt.clientY;
updateStyleSec();
}
函数updateStyleSec(){
让transform=“translate(“+translateX+”px,“+translateY+”px)缩放(“+scale+”);
if(document.querySelector('#uploadedImg2 img'))
document.querySelector(“#uploadedImg2 img”).style.transform=transform;
}
.container{
边框:1px实心#DDDDDD;
宽度:612px;
高度:612px;
位置:相对位置;
背景:红色;
}
.蒙面imga{
-webkit掩码图像:url(https://i.postimg.cc/y8T0y7zY/heart1.png);
掩码图像:url(https://i.postimg.cc/y8T0y7zY/heart1.png);
-webkit掩码位置:中间;
遮罩位置:中心;
-webkit掩码重复:无重复;
面罩重复:不重复;
宽度:259px;
高度:278px;
位置:绝对位置;
顶部:221px;
左:23px;
}
.掩蔽imgb{
-webkit掩码图像:url(https://i.postimg.cc/xdTMsB0G/heart2.png);
掩码图像:url(https://i.postimg.cc/xdTMsB0G/heart2.png);
-webkit掩码位置:中间;
遮罩位置:中心;
-webkit掩码重复:无重复;
面罩重复:不重复;
宽度:416px;
高度:388px;
位置:绝对位置;
顶部:111px;
左:173像素;
}
米纳伊姆加先生{
显示:块;
背景色:白色;
高度:278px;
}
米纳伊姆布先生{
显示:块;
背景色:白色;
高度:388px;
}
我想这就是你想要的:
fileupa.onchange=e=>{
target_imga.src=URL.createObjectURL(fileupa.files[0]);
}
fileupb.onchange=e=>{
target_imgb.src=URL.createObjectURL(fileupb.files[0]);
}
设prevX=0,prevY=0,translateX=0,translateY=0,scale=1,zoomFactor=0.1;
让当前_elm=null;
启动功能(evt){
如果(当前值!=null)r
.masked-imga
-webkit-clip-path: polygon(0 9%, 0 0, 35% 0%, 49% 0, 56% 27%, 73% 46%, 100% 61%, 100% 100%, 65% 100%, 0 100%, 0 100%, 0 30%);
clip-path: polygon(0 9%, 0 0, 35% 0%, 49% 0, 56% 27%, 73% 46%, 100% 61%, 100% 100%, 65% 100%, 0 100%, 0 100%, 0 30%);
.masked-imgb
-webkit-clip-path: polygon(0 9%, 0 0, 35% 0%, 100% 0, 100% 0, 100% 0, 100% 61%, 100% 100%, 58% 100%, 40% 90%, 18% 63%, 0 39%);
clip-path: polygon(0 9%, 0 0, 35% 0%, 100% 0, 100% 0, 100% 0, 100% 61%, 100% 100%, 58% 100%, 40% 90%, 18% 63%, 0 39%);
<input type="file" id="fileupa" />
<input type="file" id="fileupb" />
<div class="container">
<div class="minaimg masked-imga" ondragover="onDragOver(event)"ondragover="onDragOver(event)" >
<div draggable="true" ondragstart="onDragStart(event)" id="uploadedImg">
<div class="minaimga">
<div id="dragBox1" class="dragFromHere" style="left:70px;top:120px;"></div>
<img id="target_imga" alt="">
<div></div>
</div>
</div>
</div>
<div class="minaimg masked-imgb" ondragover="onDragOverSec(event)" ondragover="onDragOver(event)" ondragend="dragEnd()">
<div draggable="true" ondragstart="onDragStart(event)" id="uploadedImg2">
<div class="minaimgb">
<div id="dragBox2" class="dragFromHere" style="left:160px;top:160px;"></div>
<img id="target_imgb" alt="">
<div></div>
</div>
</div>
</div>
</div>
var elemInDrag = null;
var canInitdrag = false;
fileupa.onchange = e => {
target_imga.src = URL.createObjectURL(fileupa.files[0]);
}
fileupb.onchange = e => {
target_imgb.src = URL.createObjectURL(fileupb.files[0]);
}
let prevX = 0, prevY = 0,translateX = 0, translateY = 0, scale = 1, zoomFactor = 0.1;
function dragEnd() {
elemInDrag = null;
canInitdrag = false;
}
function onDragStart(evt) {
var x = evt.clientX, y = evt.clientY;
var divRect1 = document.getElementById('dragBox1').getBoundingClientRect();
var divRect2 = document.getElementById('dragBox2').getBoundingClientRect();
if (event.clientX >= divRect1.left && event.clientX <= divRect1.right &&
event.clientY >= divRect1.top && event.clientY <= divRect1.bottom) {
// Mouse is inside element.
canInitdrag = true;
}
if (event.clientX >= divRect2.left && event.clientX <= divRect2.right &&
event.clientY >= divRect2.top && event.clientY <= divRect2.bottom) {
// Mouse is inside element.
canInitdrag = true;
}
if (canInitdrag) {
if ((typeof evt.target.id!='undefined') || (evt.target.id==elemInDrag)){
elemInDrag = evt.target.id;
if (evt.dataTransfer && evt.dataTransfer.setDragImage) {
evt.dataTransfer.setDragImage(evt.target.nextElementSibling, 0, 0);
}
prevX = evt.clientX;
prevY = evt.clientY;
}
}
}
function onDragOver(evt) {
if ((typeof evt.target.id!='undefined') && (evt.target.id==elemInDrag)){
translateX += evt.clientX - prevX;
translateY += evt.clientY - prevY;
prevX = evt.clientX;
prevY = evt.clientY;
updateStyle();
}
}
function updateStyle()
{
let transform = "translate(" +translateX+ "px, "+ translateY + "px) scale("+scale+")";
if(document.querySelector('#uploadedImg img'))
document.querySelector('#uploadedImg img').style.transform = transform;
}
function onDragOverSec(evt) {
if ((typeof evt.target.id!='undefined') && (evt.target.id==elemInDrag)){
translateX += evt.clientX - prevX;
translateY += evt.clientY - prevY;
prevX = evt.clientX;
prevY = evt.clientY;
updateStyleSec();
}
}
function updateStyleSec()
{
let transform = "translate(" +translateX+ "px, "+ translateY + "px) scale("+scale+")";
if(document.querySelector('#uploadedImg2 img'))
document.querySelector('#uploadedImg2 img').style.transform = transform;
}
.container {
border: 1px solid #DDDDDD;
width: 612px;
height: 612px;
position:relative;
background:red;
}
.masked-imga
{
-webkit-mask-image: url(http://139.59.24.243/ecom1/site/test/images/heart1.png);
mask-image: url(http://139.59.24.243/ecom1/site/test/images/heart1.png);
-webkit-mask-position: center center;
mask-position: center center;
-webkit-mask-repeat: no-repeat;
mask-repeat: no-repeat;
width: 259px;
height: 278px;
position: absolute;
top: 221px;
left: 23px;
}
.dragFromHere {
border:thin;
border-style:dotted;
border-color:red;
display:inline-block;
width:80px;
height:80px;
position:absolute;
z-index:99;
pointer-events:none;
}
.masked-imgb
{
-webkit-mask-image: url(http://139.59.24.243/ecom1/site/test/images/heart2.png);
mask-image: url(http://139.59.24.243/ecom1/site/test/images/heart2.png);
-webkit-mask-position: center center;
mask-position: center center;
-webkit-mask-repeat: no-repeat;
mask-repeat: no-repeat;
width: 416px;
height: 388px;
position: absolute;
top: 111px;
left: 173px;
}
.minaimga
{
display: block;
background-color: white;
height: 278px;
}
.minaimgb
{
display: block;
background-color: white;
height: 388px;
}