CasperSecurity
// .modal-open - body class for killing the scroll
// .modal - container to scroll within
// .modal-dialog - positioning shell for the actual modal
// .modal-content - actual modal w/ bg and corners and stuff
.modal-open {
// Kill the scroll on the body
overflow: hidden;
.modal {
overflow-x: hidden;
overflow-y: auto;
}
}
// Container that the modal scrolls within
.modal {
position: fixed;
top: 0;
left: 0;
z-index: $zindex-modal;
display: none;
width: 100%;
height: 100%;
overflow: hidden;
// Prevent Chrome on Windows from adding a focus outline. For details, see
// https://github.com/twbs/bootstrap/pull/10951.
outline: 0;
// We deliberately don't use `-webkit-overflow-scrolling: touch;` due to a
// gnarly iOS Safari bug: https://bugs.webkit.org/show_bug.cgi?id=158342
// See also https://github.com/twbs/bootstrap/issues/17695
}
// Shell div to position the modal with bottom padding
.modal-dialog {
position: relative;
width: auto;
margin: $modal-dialog-margin;
// allow clicks to pass through for custom click handling to close modal
pointer-events: none;
// When fading in the modal, animate it to slide down
.modal.fade & {
@include transition($modal-transition);
transform: $modal-fade-transform;
}
.modal.show & {
transform: $modal-show-transform;
}
// When trying to close, animate focus to scale
.modal.modal-static & {
transform: $modal-scale-transform;
}
}
.modal-dialog-scrollable {
display: flex; // IE10/11
max-height: subtract(100%, $modal-dialog-margin * 2);
.modal-content {
max-height: subtract(100vh, $modal-dialog-margin * 2); // IE10/11
overflow: hidden;
}
.modal-header,
.modal-footer {
flex-shrink: 0;
}
.modal-body {
overflow-y: auto;
}
}
.modal-dialog-centered {
display: flex;
align-items: center;
min-height: subtract(100%, $modal-dialog-margin * 2);
// Ensure `modal-dialog-centered` extends the full height of the view (IE10/11)
&::before {
display: block; // IE10
height: subtract(100vh, $modal-dialog-margin * 2);
height: min-content; // Reset height to 0 except on IE
content: "";
}
// Ensure `.modal-body` shows scrollbar (IE10/11)
&.modal-dialog-scrollable {
flex-direction: column;
justify-content: center;
height: 100%;
.modal-content {
max-height: none;
}
&::before {
content: none;
}
}
}
// Actual modal
.modal-content {
position: relative;
display: flex;
flex-direction: column;
width: 100%; // Ensure `.modal-content` extends the full width of the parent `.modal-dialog`
// counteract the pointer-events: none; in the .modal-dialog
color: $modal-content-color;
pointer-events: auto;
background-color: $modal-content-bg;
background-clip: padding-box;
border: $modal-content-border-width solid $modal-content-border-color;
@include border-radius($modal-content-border-radius);
@include box-shadow($modal-content-box-shadow-xs);
// Remove focus outline from opened modal
outline: 0;
}
// Modal background
.modal-backdrop {
position: fixed;
top: 0;
left: 0;
z-index: $zindex-modal-backdrop;
width: 100vw;
height: 100vh;
background-color: $modal-backdrop-bg;
// Fade for backdrop
&.fade { opacity: 0; }
&.show { opacity: $modal-backdrop-opacity; }
}
// Modal header
// Top section of the modal w/ title and dismiss
.modal-header {
display: flex;
align-items: flex-start; // so the close btn always stays on the upper right corner
justify-content: space-between; // Put modal header elements (title and dismiss) on opposite ends
padding: $modal-header-padding;
border-bottom: $modal-header-border-width solid $modal-header-border-color;
@include border-top-radius($modal-content-inner-border-radius);
.close {
padding: $modal-header-padding;
// auto on the left force icon to the right even when there is no .modal-title
margin: (-$modal-header-padding-y) (-$modal-header-padding-x) (-$modal-header-padding-y) auto;
}
}
// Title text within header
.modal-title {
margin-bottom: 0;
line-height: $modal-title-line-height;
}
// Modal body
// Where all modal content resides (sibling of .modal-header and .modal-footer)
.modal-body {
position: relative;
// Enable `flex-grow: 1` so that the body take up as much space as possible
// when there should be a fixed height on `.modal-dialog`.
flex: 1 1 auto;
padding: $modal-inner-padding;
}
// Footer (for actions)
.modal-footer {
display: flex;
flex-wrap: wrap;
align-items: center; // vertically center
justify-content: flex-end; // Right align buttons with flex property because text-align doesn't work on flex items
padding: $modal-inner-padding - $modal-footer-margin-between / 2;
border-top: $modal-footer-border-width solid $modal-footer-border-color;
@include border-bottom-radius($modal-content-inner-border-radius);
// Place margin between footer elements
// This solution is far from ideal because of the universal selector usage,
// but is needed to fix https://github.com/twbs/bootstrap/issues/24800
> * {
margin: $modal-footer-margin-between / 2;
}
}
// Measure scrollbar width for padding body during modal show/hide
.modal-scrollbar-measure {
position: absolute;
top: -9999px;
width: 50px;
height: 50px;
overflow: scroll;
}
// Scale up the modal
@include media-breakpoint-up(sm) {
// Automatically set modal's width for larger viewports
.modal-dialog {
max-width: $modal-md;
margin: $modal-dialog-margin-y-sm-up auto;
}
.modal-dialog-scrollable {
max-height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);
.modal-content {
max-height: subtract(100vh, $modal-dialog-margin-y-sm-up * 2);
}
}
.modal-dialog-centered {
min-height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);
&::before {
height: subtract(100vh, $modal-dialog-margin-y-sm-up * 2);
height: min-content;
}
}
.modal-content {
@include box-shadow($modal-content-box-shadow-sm-up);
}
.modal-sm { max-width: $modal-sm; }
}
@include media-breakpoint-up(lg) {
.modal-lg,
.modal-xl {
max-width: $modal-lg;
}
}
@include media-breakpoint-up(xl) {
.modal-xl { max-width: $modal-xl; }
}