当我同时上传两个蒙版的图像和拖动下面图像的B部分时,比C和D部分还要拖动,但是这不应该发生.....,因为 AB 部分在一个div中,而 CD 在另一个DIV中,或者我在event stoppropogation
上做错了什么?
https://codepen.io/kidsdial/pen/OdwWQo
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 onDragStart(evt) {
if (evt.dataTransfer && evt.dataTransfer.setDragImage) {
evt.dataTransfer.setDragImage(evt.target.nextElementSibling, 0, 0);
}
prevX = evt.clientX;
prevY = evt.clientY;
}
function onDragOver(evt) {
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;
if (document.getElementById("check").checked) {
event.stopPropagation();
}
}
function onDragOverSec(evt) {
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:silver;
}
.customa {
border: 1px solid #ccc;
display: inline-block;
padding: 6px 12px;
cursor: pointer;
position: relative;
top: 350px;
z-index: 1;
left: -40px;
}
.customb {
border: 1px solid #ccc;
display: inline-block;
padding: 6px 12px;
cursor: pointer;
position: relative;
top: 350px;
z-index: 1;
left: 80px;
}
.masked-imga
{
-webkit-mask-image: url(https://i.stack.imgur.com/VNwNC.png);
mask-image: url(https://i.stack.imgur.com/VNwNC.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;
}
.masked-imgb
{
-webkit-mask-image: url(https://i.stack.imgur.com/bdJSg.png);
mask-image: url(https://i.stack.imgur.com/bdJSg.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;
}
<div class="container">
Stop propagation:
<input type="checkbox" id="check">
<label for="fileupa" class="customa">
Upload Image
</label>
<input id="fileupa" type="file" style="display:none;">
<label for="fileupb" class="customb">
Upload Image
</label>
<input id="fileupb" type="file" style="display:none;">
<div class="minaimg masked-imga" ondragover="onDragOver(event)"ondragover="onDragOver(event)" >
<div draggable="true" ondragstart="onDragStart(event)" id="uploadedImg">
<div class="minaimga">
<img id="target_imga" alt="">
<div></div>
</div>
</div>
</div>
<div class="minaimg masked-imgb" ondragover="onDragOverSec(event)"ondragover="onDragOver(event)" >
<div draggable="true" ondragstart="onDragStart(event)" id="uploadedImg2">
<div class="minaimgb">
<img id="target_imgb" alt="">
<div></div>
</div>
</div>
</div>
</div>
如果您需要有关此问题的其他信息,请告诉我。.
请帮助我找到解决方案.....
预先感谢。...
答案 0 :(得分:1)
首先,您不必使用onDragOver
和updateStyle
的两个处理程序,而是可以使用相同的处理程序并将要拖动的节点存储在变量中。
let prevX = 0,
prevY = 0,
translateX = 0,
translateY = 0,
scale = 1,
zoomFactor = 0.1,
draggedElement = null;
function onDragStart(evt) {
if (evt.dataTransfer && evt.dataTransfer.setDragImage) {
evt.dataTransfer.setDragImage(evt.target.nextElementSibling, 0, 0);
}
prevX = evt.clientX;
prevY = evt.clientY;
draggedElement = evt.target;
}
function onDragEnd() {
draggedElement = null;
}
function onDragOver(evt) {
translateX += evt.clientX - prevX;
translateY += evt.clientY - prevY;
prevX = evt.clientX;
prevY = evt.clientY;
updateStyle();
}
function updateStyle() {
if (!draggedElement) return;
let transform = `translate(${translateX}px, ${translateY}px) scale(${scale})`;
draggedElement.style.transform = transform;
}
这也应防止同时拖动两者。
如果您可以为每个形状创建一个clip-path
并使用它,那就更好了。
在clippy处看到粗略的近似值(由https://codepen.io/anon/pen/gqjWVG 制成的),但是您可以将SVG文件用作剪切路径,并完全跳过掩码。