Blueimp Gallery inside Boostrap Modal not vertical aligned properly - angularjs

Question

I have a modal window that shows a few data that also has Images which open in Blueimp gallery. The problem I have is, when the image is opened in BlueImp gallery, the image is not vertically aligned in the middle of the screen. Its either to the bottom or to the top and it depends on where I have scrolled in the modal window. I need to go to the middle of the modal window and open the gallery in which case the Lightbox looks centered. This issue doesnt happen when blueimp is used directly in the page without a modal. It appears the blueimp gallery's lightbox is centered to the whole modal height instead of the viewport height. How can I override that for blueimp inside modal windows only? Is there a css fix or js fix to override this when blueimp is used in boostrap modals?
Here is a sample of my set-up:
<div uib-modal-window="modal-window" class="modal fade" role="dialog" size="xl" index="0" animate="animate" ng-style="{'z-index': 1050 + $$topModalIndex*10, display: 'block'}" tabindex="-1" uib-modal-animation-class="fade" modal-in-class="in" modal-animation="true" style="z-index: 1050; display: block;">
<div class="modal-dialog modal-xl">
<div class="modal-content" uib-modal-transclude="">
<div class="lightBoxGallery">
<a ng-repeat="image in vm.ngModel" ng-href="{{::vm.imageurl(image.name)}}" data-gallery="">
<img ng-src="{{::vm.getImage(image.name)}}" class="img-responsive img-thumbnail animated fadeIn">
</a>
<div id="blueimp-gallery" class="blueimp-gallery">
<div class="slides"></div>
<h3 class="title"></h3>
<a class="prev">‹</a>
<a class="next">›</a>
<a class="close">×</a>
<a class="play-pause"></a>
<ol class="indicator"></ol> </div>
</div>
</div>
</div>
</div>
My set-up: Angular 1.5 + Bootstrap 3 + Bootstrap UI + BlueImp Gallery
UPDATE:
The problem I am having here is, my Bootstrap Modal window has overflow-y as scrollable and it has a fixed positioning:
.modal-open .modal {
overflow-x: hidden;
overflow-y: auto;
}
.modal {
position: fixed;
top: 0;
right: 0;
bottom: 0;
left: 0;
z-index: 1050;
display: none;
overflow: hidden;
-webkit-overflow-scrolling: touch;
outline: 0;
}
And when the blueimp-gallery is opened, as a child div with fixed position, it is positioning the Div to the center of the parent's fixed position instead of center of the viewport:
.blueimp-gallery {
position: fixed;
z-index: 999999;
overflow: hidden;
background: #000;
background: rgba(0,0,0,.9);
opacity: 0;
display: none;
direction: ltr;
-ms-touch-action: none;
touch-action: none;
}
The blueimp-gallery is aligning to the middle, but I dont want it aligning to the middle of parent (modal) div. I want it aligned to the middle of viewport. For example, in my laptop, my modal has a height of 2000px where as my viewport height is a lot less like 860px. That is why the gallery lightbox is opening either to the top or bottom of the viewport unless the user is right in the middle of the modal window. If I place the blueimp-gallery directly in the body without the modal window, I dont have this issue. But in this use case, I have to place the blueimp-gallery inside a Modal window that has variable height depending on the dynamic content loaded in it.
I am still stuck on this, does anyone have a suggestion to this problem please?

Answer 1

The only way I was able to resolve this issue was to pull the "#blueimp-gallery" element out of the Modal Window and then insert it again as a direct child of the body element. Using Jquery, I added this code that fixed the issue:
$(document).ready(function(){
$("#blueimp-gallery").prependTo($("body"));
});
Now, after the above code, the BlueImp Gallery's fixed position is relative to the body element and therefore the height is that of the viewport. The Modal height no longer affects the BlueImp Gallery's height since it is now placed as a direct child of body element.

Answer 2

You should try to put the blueimp in a div with the class row and then another div with the class col-md-6 not 100% sure but it should be alligned in the middle then.
<div class="container">
<div class="row">
<div class="col-md-6">
<div id="blueimp-gallery" class="blueimp-gallery vcenter ">
...
</div>
</div>
</div>
Edit tried it it has to have container tag above it to.
most likely this is not the sollution to getting it to the center vertically but this is worth a try i guess
ADDITION
.vcenter {
display: inline-block;
vertical-align: middle;
float: none;
}
create a costum tag add it in a css file and call on it.