[英]Check if position of element is equal to top: 50%; and left: 50%;
我有這個 function (它確定grid-container
是否在grid-container-wrapper
內部,如果不是,它會將grid-container
移動到頁面中間, top: 50%;
left: 50%;
$(window).resize(function() {
if(document.getElementsByClassName('grid-container')[0].getBoundingClientRect().right > document.getElementsByClassName('grid-container-wrapper')[0].getBoundingClientRect().right || document.getElementsByClassName('grid-container')[0].getBoundingClientRect().bottom > document.getElementsByClassName('grid-container-wrapper')[0].getBoundingClientRect().bottom || $('.grid-container').position().left < $('.grid-container-wrapper').position().left || $('.grid-container').position().top < $('.grid-container-wrapper').position().top) {
$('.grid-container').animate({opacity:0}, 200, function() {
$('.grid-container').css('top', '50%');
$('.grid-container').css('left', '50%');
$('.grid-container').css('transform', 'translate(-50%, -50%)');
} );
$('.grid-container').animate({opacity:1}, 400);
}
});
但是,如果grid-container
已經定位到top: 50%;
left: 50%;
並且沒有被移動(所以 position 仍然等於left: 50%;
and top: 50%;
),我不希望 function 被執行,即使grid-container
在grid-container-wrapper
之外.
有沒有辦法做到這一點?
如果您已經定位到頂部:50%; 左:50% 你可以添加一個 class 像“stopResisize”到網格容器或任何其他字段,當調整 function 開始時,看看這個 ZA2F2ED4F8EBC2CBB14C21A29DZ40 是否存在。 如果是這樣,則不做任何事情就返回。
$(window).resize(function() {
if($('.grid-container').classList.contains("stopResisize")) return;
if ( ... ) {
...
$('.grid-container').classList.add('stopResisize');
}
}
$(window).resize(function() {
if(document.getElementsByClassName('grid-container')[0].getBoundingClientRect().right > document.getElementsByClassName('grid-container-wrapper')[0].getBoundingClientRect().right || document.getElementsByClassName('grid-container')[0].getBoundingClientRect().bottom > document.getElementsByClassName('grid-container-wrapper')[0].getBoundingClientRect().bottom || $('.grid-container').position().left < $('.grid-container-wrapper').position().left || $('.grid-container').position().top < $('.grid-container-wrapper').position().top) {
if(window.innerWidth - document.getElementsByClassName('grid-container')[0].getBoundingClientRect().right + 20 < $('.grid-container').position().left || window.innerWidth - document.getElementsByClassName('grid-container')[0].getBoundingClientRect().right - 20 > $('.grid-container').position().left || document.getElementsByClassName('grid-container-wrapper')[0].getBoundingClientRect().bottom - document.getElementsByClassName('grid-container')[0].getBoundingClientRect().bottom + 20 < $('.grid-container').position().top || document.getElementsByClassName('grid-container-wrapper')[0].getBoundingClientRect().bottom - document.getElementsByClassName('grid-container')[0].getBoundingClientRect().bottom - 20 > $('.grid-container').position().top) {
$('.grid-container').animate({opacity:0}, 200, function() {
$('.grid-container').css('top', '50%');
$('.grid-container').css('left', '50%');
$('.grid-container').css('transform', 'translate(-50%, -50%)');
} );
$('.grid-container').animate({opacity:1}, 400);
}
}
});
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