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25
4
一旦用户点击 mask 图像，我们就允许用户上传自定义图像，如果只有一个 mask 图像，这可以正常工作:https://codepen.io/kidsdial/pen/jJBVON
要求:
但是如果有多个面具图像，那么用户也应该能够上传所有面具图像上的自定义图像 [类似于https://codepen.io/kidsdial/pen/rRmYPr ] ，但现在它只适用于单个图像....
2 图像代码笔:https://codepen.io/kidsdial/pen/xBLrjY
8 图像代码笔:https://codepen.io/kidsdial/pen/ywMVOY
var mask;
let jsonData = {
"path" : " newyear collage\/",
"info" : {
"author" : "",
"keywords" : "",
"file" : "newyear collage",
"date" : "sRGB",
"title" : "",
"description" : "Normal",
"generator" : "Export Kit v1.2.8"
},
"name" : "newyear collage",
"layers" : [
{
"x" : 0,
"height" : 612,
"layers" : [
{
"x" : 0,
"color" : "0xFFFFFF",
"height" : 612,
"y" : 0,
"width" : 612,
"shapeType" : "rectangle",
"type" : "shape",
"name" : "bg_rectangle"
},
{
"x" : 160,
"height" : 296,
"layers" : [
{
"x" : 0,
"height" : 296,
"src" : "ax0HVTs.png",
"y" : 0,
"width" : 429,
"type" : "image",
"name" : "mask_image_1"
},
{
"radius" : "26 \/ 27",
"color" : "0xACACAC",
"x" : 188,
"y" : 122,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse1"
}
],
"y" : 291,
"width" : 429,
"type" : "group",
"name" : "user_image_1"
},
{
"x" : 25,
"height" : 324,
"layers" : [
{
"x" : 0,
"height" : 324,
"src" : "hEM2kEP.png",
"y" : 0,
"width" : 471,
"type" : "image",
"name" : "mask_image_2"
},
{
"radius" : "26 \/ 27",
"color" : "0xACACAC",
"x" : 209,
"y" : 136,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse_2"
}
],
"y" : 22,
"width" : 471,
"type" : "group",
"name" : "user_image_2"
}
],
"y" : 0,
"width" : 612,
"type" : "group",
"name" : "newyearcollage08"
}
]
};
$(document).ready(function() {
$('.container').click(function(e) {
setTimeout(() => {
$('#fileup').click();
}, 20)
});
function getAllSrc(layers) {
let arr = [];
layers.forEach(layer => {
if (layer.src) {
arr.push({
src: layer.src,
x: layer.x,
y: layer.y
});
} else if (layer.layers) {
let newArr = getAllSrc(layer.layers);
if (newArr.length > 0) {
newArr.forEach(({
src,
x,
y
}) => {
arr.push({
src,
x: (layer.x + x),
y: (layer.y + y)
});
});
}
}
});
return arr;
}
function json(data)
{
var width = 0;
var height = 0;
let arr = getAllSrc(data.layers);
let layer1 = data.layers;
width = layer1[0].width;
height = layer1[0].height;
for (let {
src,
x,
y
} of arr) {
$(".container").css('width', width + "px").css('height', height + "px").addClass('temp');
var mask = $(".container").mask({
maskImageUrl: 'https://i.imgur.com/' + src,
onMaskImageCreate: function(img) {
img.css({
"position": "absolute",
"left": x + "px",
"top": y + "px"
});
}
});
fileup.onchange = function() {
mask.loadImage(URL.createObjectURL(fileup.files[0]));
};
}
}
json(jsonData);
}); // end of document ready
// jq plugin for mask
(function($) {
var JQmasks = [];
$.fn.mask = function(options) {
// This is the easiest way to have default options.
var settings = $.extend({
// These are the defaults.
maskImageUrl: undefined,
imageUrl: undefined,
scale: 1,
id: new Date().getUTCMilliseconds().toString(),
x: 0, // image start position
y: 0, // image start position
onMaskImageCreate: function(div) {},
}, options);
var container = $(this);
let prevX = 0,
prevY = 0,
draggable = false,
img,
canvas,
context,
image,
timeout,
initImage = false,
startX = settings.x,
startY = settings.y,
div;
container.mousePosition = function(event) {
return {
x: event.pageX || event.offsetX,
y: event.pageY || event.offsetY
};
}
container.selected = function(ev) {
var pos = container.mousePosition(ev);
var item = $(".masked-img canvas").filter(function() {
var offset = $(this).offset()
var x = pos.x - offset.left;
var y = pos.y - offset.top;
var d = this.getContext('2d').getImageData(x, y, 1, 1).data;
return d[0] > 0
});
JQmasks.forEach(function(el) {
var id = item.length > 0 ? $(item).attr("id") : "";
if (el.id == id)
el.item.enable();
else el.item.disable();
});
};
container.enable = function() {
draggable = true;
$(canvas).attr("active", "true");
div.css({
"z-index": 2
});
}
container.disable = function() {
draggable = false;
$(canvas).attr("active", "false");
div.css({
"z-index": 1
});
}
container.onDragStart = function(evt) {
container.selected(evt);
prevX = evt.clientX;
prevY = evt.clientY;
var img = new Image();
evt.originalEvent.dataTransfer.setDragImage(img, 10, 10);
evt.originalEvent.dataTransfer.setData('text/plain', 'anything');
};
container.getImagePosition = function() {
return {
x: settings.x,
y: settings.y,
scale: settings.scale
};
};
container.onDragOver = function(evt) {
if (draggable && $(canvas).attr("active") === "true") {
var x = settings.x + evt.clientX - prevX;
var y = settings.y + evt.clientY - prevY;
if (x == settings.x && y == settings.y)
return; // position has not changed
settings.x += evt.clientX - prevX;
settings.y += evt.clientY - prevY;
prevX = evt.clientX;
prevY = evt.clientY;
container.updateStyle();
}
};
container.updateStyle = function() {
clearTimeout(timeout);
timeout = setTimeout(function() {
context.clearRect(0, 0, canvas.width, canvas.height);
context.beginPath();
context.globalCompositeOperation = "source-over";
image = new Image();
image.setAttribute('crossOrigin', 'anonymous');
image.src = settings.maskImageUrl;
image.onload = function() {
canvas.width = image.width;
canvas.height = image.height;
context.drawImage(image, 0, 0, image.width, image.height);
div.css({
"width": image.width,
"height": image.height
});
};
img = new Image();
img.src = settings.imageUrl;
img.setAttribute('crossOrigin', 'anonymous');
img.onload = function() {
settings.x = settings.x == 0 && initImage ? (canvas.width - (img.width * settings.scale)) / 2 : settings.x;
settings.y = settings.y == 0 && initImage ? (canvas.height - (img.height * settings.scale)) / 2 : settings.y;
context.globalCompositeOperation = 'source-atop';
context.drawImage(img, settings.x, settings.y, img.width * settings.scale, img.height * settings.scale);
initImage = false;
};
}, 0);
};
// change the draggable image
container.loadImage = function(imageUrl) {
if (img)
img.remove();
// reset the code.
settings.y = startY;
settings.x = startX;
prevX = prevY = 0;
settings.imageUrl = imageUrl;
initImage = true;
container.updateStyle();
};
// change the masked Image
container.loadMaskImage = function(imageUrl, from) {
if (div)
div.remove();
canvas = document.createElement("canvas");
context = canvas.getContext('2d');
canvas.setAttribute("draggable", "true");
canvas.setAttribute("id", settings.id);
settings.maskImageUrl = imageUrl;
div = $("<div/>", {
"class": "masked-img"
}).append(canvas);
// div.find("canvas").on('touchstart mousedown', function(event)
div.find("canvas").on('dragstart', function(event) {
if (event.handled === false) return;
event.handled = true;
container.onDragStart(event);
});
div.find("canvas").on('touchend mouseup', function(event) {
if (event.handled === false) return;
event.handled = true;
container.selected(event);
});
div.find("canvas").bind("dragover", container.onDragOver);
container.append(div);
if (settings.onMaskImageCreate)
settings.onMaskImageCreate(div);
container.loadImage(settings.imageUrl);
};
container.loadMaskImage(settings.maskImageUrl);
JQmasks.push({
item: container,
id: settings.id
})
return container;
};
}(jQuery));.temp {
background: black;
}
.container {
background: black;
position: relative;
}
.masked-img {
overflow: hidden;
margin-top: 30px;
position: relative;
}<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<input id="fileup" name="fileup" type="file" style="display:none" >
<div class="container">
</div>编辑
我试过静态方式:https://codepen.io/kidsdial/pen/xBLrjY ，这里有 2 张图片，我包括 2 张 <input type="file" > ，对于 3 个图像，我可能需要添加 3 个输入文件，是否可以修复数量或是否有任何其他动态 hack，以便它适用于任意数量的蒙版图像？
最佳答案
这是一个可行的解决方案。我只是更新了您获取数据的方式。我将所有掩码保存在一个数组中。比查找与目标点击关联的数组
var mask;
var target;
let jsonData = {
"path" : " UNEVENSHAPES\/",
"info" : {
"author" : "",
"keywords" : "",
"file" : "UNEVENSHAPES",
"date" : "Uncalibrated",
"title" : "",
"description" : "Normal",
"generator" : "Export Kit v1.2.8"
},
"name" : "UNEVENSHAPES",
"layers" : [
{
"x" : 0,
"height" : 612,
"layers" : [
{
"x" : 0,
"color" : "0xFFFFFF",
"height" : 612,
"y" : 0,
"width" : 612,
"shapeType" : "rectangle",
"type" : "shape",
"name" : "rectangle1"
},
{
"x" : 20,
"height" : 377,
"layers" : [
{
"x" : 0,
"height" : 377,
"src" : "d15ad70281961be451263b418a07798b_frame0.png",
"y" : 0,
"width" : 218,
"type" : "image",
"name" : "mask_pic1"
},
{
"radius" : "27 \/ 27",
"color" : "0xACACAC",
"x" : 52,
"y" : 257,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse1"
}
],
"y" : 215,
"width" : 218,
"type" : "group",
"name" : "user_pic1"
},
{
"x" : 191,
"height" : 120,
"layers" : [
{
"x" : 0,
"height" : 120,
"src" : "2b5d28d0439bc3ce1d856e6c4e5607be_frame1.png",
"y" : 0,
"width" : 268,
"type" : "image",
"name" : "mask_pic2"
},
{
"radius" : "26 \/ 27",
"color" : "0xACACAC",
"x" : 115,
"y" : 43,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse2"
}
],
"y" : 472,
"width" : 268,
"type" : "group",
"name" : "user_pic2"
},
{
"x" : 414,
"height" : 302,
"layers" : [
{
"x" : 0,
"height" : 302,
"src" : "52c93b6e0a0ffeeb670d0981f89f7fa5_frame2.png",
"y" : 0,
"width" : 178,
"type" : "image",
"name" : "mask_pic3"
},
{
"radius" : "26 \/ 27",
"color" : "0xACACAC",
"x" : 69,
"y" : 182,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse3"
}
],
"y" : 290,
"width" : 178,
"type" : "group",
"name" : "user_pic3"
},
{
"x" : 374,
"height" : 377,
"layers" : [
{
"x" : 0,
"height" : 377,
"src" : "e92f354018aa8f7e6d279601a868a6b2_frame3.png",
"y" : 0,
"width" : 218,
"type" : "image",
"name" : "mask_pic4"
},
{
"radius" : "26 \/ 27",
"color" : "0xACACAC",
"x" : 129,
"y" : 60,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse4"
}
],
"y" : 20,
"width" : 218,
"type" : "group",
"name" : "user_pic4"
},
{
"x" : 150,
"height" : 120,
"layers" : [
{
"x" : 0,
"height" : 120,
"src" : "010054750abb290d1bd7fcecfab60524_frame4.png",
"y" : 0,
"width" : 269,
"type" : "image",
"name" : "mask_pic5"
},
{
"radius" : "27 \/ 27",
"color" : "0xACACAC",
"x" : 103,
"y" : 15,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse5"
}
],
"y" : 20,
"width" : 269,
"type" : "group",
"name" : "user_pic5"
},
{
"x" : 20,
"height" : 302,
"layers" : [
{
"x" : 0,
"height" : 302,
"src" : "e7a5874b58376883adbeafea7ce5e572_frame5.png",
"y" : 0,
"width" : 176,
"type" : "image",
"name" : "mask_pic6"
},
{
"radius" : "26 \/ 27",
"color" : "0xACACAC",
"x" : 50,
"y" : 68,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse6"
}
],
"y" : 20,
"width" : 176,
"type" : "group",
"name" : "user_pic6"
},
{
"x" : 222,
"height" : 335,
"layers" : [
{
"x" : 0,
"height" : 335,
"src" : "591743efa89d8ee936a6d660d52e82b2_frame6.png",
"y" : 0,
"width" : 265,
"type" : "image",
"name" : "mask_pic7"
},
{
"radius" : "26 \/ 27",
"color" : "0xACACAC",
"x" : 126,
"y" : 114,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse7"
}
],
"y" : 123,
"width" : 265,
"type" : "group",
"name" : "user_pic7"
},
{
"x" : 123,
"height" : 334,
"layers" : [
{
"x" : 0,
"height" : 334,
"src" : "22997a60cf61d7b59e92620b86ab86d6_frame7.png",
"y" : 0,
"width" : 264,
"type" : "image",
"name" : "mask_pic8"
},
{
"radius" : "27 \/ 27",
"color" : "0xACACAC",
"x" : 73,
"y" : 167,
"height" : 53,
"width" : 53,
"shapeType" : "ellipse",
"type" : "shape",
"name" : "useradd_ellipse8"
}
],
"y" : 155,
"width" : 264,
"type" : "group",
"name" : "user_pic8"
}
],
"y" : 0,
"width" : 612,
"type" : "group",
"name" : "unevenshape04"
}
]
};
$(document).ready(function() {
$('.container').click(function(e) {
console.log(e);
var res = e.target;
target = res.id;
console.log(target);
setTimeout(() => {
$('#fileup').click();
}, 20)
});
function getAllSrc(layers){
let arr = [];
layers.forEach(layer => {
if(layer.src){
arr.push({src: layer.src, x: layer.x , y: layer.y});
}
else if(layer.layers){
let newArr = getAllSrc(layer.layers);
if(newArr.length > 0){
newArr.forEach(({src, x,y}) =>{
arr.push({src, x: (layer.x + x) , y: (layer.y + y) });
});
}
}
});
return arr;
}
function json(data)
{
var width = 0;
var height = 0;
/*
let layer1 = data.layers;
width = layer1[0].width;
height = layer1[0].height;
let layer2 = layer1[0].layers;
*/
let arr = getAllSrc(data.layers);
let layer1 = data.layers;
width = layer1[0].width;
height = layer1[0].height;
let counter = 0;
let table = [];
// for (i = 1; i < layer2.length; i++) {
for (let {src, x,y} of arr) {
// var x = layer2[i].x;
// var y = layer2[i].y;
// var src = layer2[i].layers[0].src;
$(".container").css('width', width + "px").css('height', height + "px").addClass('temp');
var mask = $(".container").mask({
maskImageUrl: 'http://piccellsapp.com:1337/parse/files/PfAppId/' + src,
onMaskImageCreate: function(img) {
img.css({
"position": "absolute",
"left": x + "px",
"top": y + "px"
});
},
id : counter
});
table.push(mask);
fileup.onchange = function() {
// get the element associated to it.
let mask2 = table[target];
mask2.loadImage(URL.createObjectURL(fileup.files[0]));
};
counter++;
}
}
json(jsonData);
}); // end of document ready
// jq plugin for mask
(function($) {
var JQmasks = [];
$.fn.mask = function(options) {
// This is the easiest way to have default options.
var settings = $.extend({
// These are the defaults.
maskImageUrl: undefined,
imageUrl: undefined,
scale: 1,
id: new Date().getUTCMilliseconds().toString(),
x: 0, // image start position
y: 0, // image start position
onMaskImageCreate: function(div) {},
}, options);
var container = $(this);
let prevX = 0,
prevY = 0,
draggable = false,
img,
canvas,
context,
image,
timeout,
initImage = false,
startX = settings.x,
startY = settings.y,
div;
container.mousePosition = function(event) {
return {
x: event.pageX || event.offsetX,
y: event.pageY || event.offsetY
};
}
container.selected = function(ev) {
var pos = container.mousePosition(ev);
var item = $(".masked-img canvas").filter(function() {
var offset = $(this).offset()
var x = pos.x - offset.left;
var y = pos.y - offset.top;
var d = this.getContext('2d').getImageData(x, y, 1, 1).data;
return d[0] > 0
});
JQmasks.forEach(function(el) {
var id = item.length > 0 ? $(item).attr("id") : "";
if (el.id == id)
el.item.enable();
else el.item.disable();
});
};
container.enable = function() {
draggable = true;
$(canvas).attr("active", "true");
div.css({
"z-index": 2
});
}
container.disable = function() {
draggable = false;
$(canvas).attr("active", "false");
div.css({
"z-index": 1
});
}
container.onDragStart = function(evt) {
container.selected(evt);
prevX = evt.clientX;
prevY = evt.clientY;
var img = new Image();
evt.originalEvent.dataTransfer.setDragImage(img, 10, 10);
evt.originalEvent.dataTransfer.setData('text/plain', 'anything');
};
container.getImagePosition = function() {
return {
x: settings.x,
y: settings.y,
scale: settings.scale
};
};
container.onDragOver = function(evt) {
if (draggable && $(canvas).attr("active") === "true") {
var x = settings.x + evt.clientX - prevX;
var y = settings.y + evt.clientY - prevY;
if (x == settings.x && y == settings.y)
return; // position has not changed
settings.x += evt.clientX - prevX;
settings.y += evt.clientY - prevY;
prevX = evt.clientX;
prevY = evt.clientY;
container.updateStyle();
}
};
container.updateStyle = function() {
clearTimeout(timeout);
timeout = setTimeout(function() {
context.clearRect(0, 0, canvas.width, canvas.height);
context.beginPath();
context.globalCompositeOperation = "source-over";
image = new Image();
image.setAttribute('crossOrigin', 'anonymous');
image.src = settings.maskImageUrl;
image.onload = function() {
canvas.width = image.width;
canvas.height = image.height;
context.drawImage(image, 0, 0, image.width, image.height);
div.css({
"width": image.width,
"height": image.height
});
};
img = new Image();
img.src = settings.imageUrl;
img.setAttribute('crossOrigin', 'anonymous');
img.onload = function() {
settings.x = settings.x == 0 && initImage ? (canvas.width - (img.width * settings.scale)) / 2 : settings.x;
settings.y = settings.y == 0 && initImage ? (canvas.height - (img.height * settings.scale)) / 2 : settings.y;
context.globalCompositeOperation = 'source-atop';
context.drawImage(img, settings.x, settings.y, img.width * settings.scale, img.height * settings.scale);
initImage = false;
};
}, 0);
};
// change the draggable image
container.loadImage = function(imageUrl) {
console.log("load");
if (img)
img.remove();
// reset the code.
settings.y = startY;
settings.x = startX;
prevX = prevY = 0;
settings.imageUrl = imageUrl;
initImage = true;
container.updateStyle();
};
// change the masked Image
container.loadMaskImage = function(imageUrl, from) {
if (div)
div.remove();
canvas = document.createElement("canvas");
context = canvas.getContext('2d');
canvas.setAttribute("draggable", "true");
canvas.setAttribute("id", settings.id);
settings.maskImageUrl = imageUrl;
div = $("<div/>", {
"class": "masked-img"
}).append(canvas);
// div.find("canvas").on('touchstart mousedown', function(event)
div.find("canvas").on('dragstart', function(event) {
if (event.handled === false) return;
event.handled = true;
container.onDragStart(event);
});
div.find("canvas").on('touchend mouseup', function(event) {
if (event.handled === false) return;
event.handled = true;
container.selected(event);
});
div.find("canvas").bind("dragover", container.onDragOver);
container.append(div);
if (settings.onMaskImageCreate)
settings.onMaskImageCreate(div);
container.loadImage(settings.imageUrl);
};
container.loadMaskImage(settings.maskImageUrl);
JQmasks.push({
item: container,
id: settings.id
})
return container;
};
}(jQuery));
关于javascript - 上传图像 onclick 多个蒙版图像，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55000800/
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是否有任何库可以用来转换这样的代码: function () { var a = 1; } 像这样的代码: function () { var a = 1; } 在我的浏览器中。因为我在 Gi
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我如何将这个内联 javascript 更改为 Unobtrusive JavaScript？ 谢谢! 感谢您的回答，但它不起作用。我的代码是: PHP js文件 document.getElem
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