jquery - 从单击的 div 中心缩放弹出窗口到中心屏幕

Question

我是 jQuery 的新手，如果我有任何错误，请原谅我。

我有一个要求，有多个可点击的框，只要你点击任何一个框，它就会像弹出窗口一样打开，但以这种方式它看起来像是从那个特定的点击框出来的, 如果你关闭打开的弹出窗口，它会缩小到点击框(看起来它正在进入点击框内)

Answer 1

对于 jQuery 新手来说，这是一个有点复杂的问题，但这里有一个解决方案。

Caveat: In a rush and don't have time just now to calculate the correct coords to position the pop-up box dead center of screen - this example puts the top/left corner of the box dead center of screen. I leave it to you to work out the coordinates to put center of box in center of screen -- and I would appreciate it if you would leave a comment with link to revised jsFiddle with your solution.

jsFiddle Demo

 var xx, yy, mPos = { x: -1, y: -1 }; //mouse position
$(document).mousemove(function(event) {
	mPos.x = event.pageX;
	mPos.y = event.pageY;
});

$('.dd').click(function(){
	xx = mPos.x;
	yy = mPos.y;
	$('#msg').css({top:mPos.y+'px',left:mPos.x+'px'}).animate({
		height: '400px',
		width: '500px',
		left: $(window).width() / 2,
		top: $(window).height() / 2
	},500,function(){
		//use a callback to show overlay ONLY when animation finished
		$('#overlay').show(); 
	});
});
$('#msg').click(function(){
	$('#overlay').hide();
	$('#msg').animate({
		height: '0px',
		width: '0px',
		left: xx+'px',
		top: yy+'px'
	},500);
});

#overlay{position:absolute;top:0;left:0;height:100%;width:100%;background:black;opacity:0.7;z-index:1;display:none;}
#msg{position:absolute;height:0;left:0;background:wheat;overflow:hidden;z-index:2;}

.dd{height:30px;width:100px;margin:30px;padding-top:25px;border:1px solid orange;}
.clickable{cursor:pointer;}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="overlay"></div>
<div id="msg">Click on me to minimize again</div>

<div id="d1" class="dd clickable">Div One</div>
<div id="d2" class="dd clickable">Div Two</div>
<div id="d3" class="dd clickable">Div Three</div>
<div id="d4" class="dd clickable">Div Four</div>