我正在尝试使用watermark.js插件,但只想在点击事件上用水印标记图像。也就是说,我不希望所有图像都只有具有点击事件或更改事件的图像。我正在做的方法是启动水印插件,并在点击提交事件上为图像添加类“水印”,但它不起作用。任何人都可以指导我如何去做。
<!doctype html>
<html lang="en-us">
<head>
<title>watermark.js basic demo</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
</head>
<body style="margin:0;padding:0;">
<div style="width:500px;position:relative;margin:auto;">
<h1>watermark.js basic demo</h1><a href="http://www.patrick-wied.at/static/watermarkjs/">Back to watermark.js</a> The first and the third image will get a predefined watermark:
<img src="img/1.png" class="watermark" />
<img src="img/2.png" id="water" />
<img src="img/3.png" id="water" />
</div>
<form action="">
<input type="submit" value="Submit">
</form>
<!-- Look at the configuration -->
<script src="watermark.js"></script>
<script>
var load = false;
window.onload = function() {
if (!load) {
wmark.init({
/* config goes here */
"position": "top-left", // default "bottom-right"
"opacity": 100, // default 50
"className": "watermark", // default "watermark"
"path": "water.png"
});
load = true;
}
}
</script>
<script>
$(document).ready(function() {
$("form").submit(function() {
$("img").addClass("watermark");
});
});
</script>
</body>
</html>
答案 0 :(得分:0)
好吧,将watarmark添加到具有已定义类的图像中。因此,您可以动态添加类名&#39;水印&#39;点击图片。然后运行wmark.init命令以呈现水印效果。使用jquery这很容易。
JS / Jquery
$(document).ready(function(){
$('img').on('click', function(){
$(this).addClass('watermark');
wmark.init({
/* config goes here */
"position": "bottom-right",
"opacity": 50,
"className": "watermark",
"path": "water.png"
});
// Remove class after the mark has been applied
// This way it doesn't re-render the watermark when you
// click another image
$(this).removeClass('watermark');
});
});
$(&#39; img&#39;)选择器可以替换为您可以分配给想要标记的图像的类名。
HTML
<img src="img1.jpg class="markable">
<img src="img2.jpg>
<img src="img3.jpg class="markable">
JS / Jquery
$(document).ready(function(){
$('.markable').on('click', function(){
... ... etc
... ... etc
});