1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
// The dropdown wrapper (`<div>`)
.dropup,
.dropright,
.dropdown,
.dropleft {
position: relative;
}
.dropdown-toggle {
white-space: nowrap;
// Generate the caret automatically
@include caret();
}
// The dropdown menu
.dropdown-menu {
position: absolute;
top: 100%;
left: 0;
z-index: $zindex-dropdown;
display: none; // none by default, but block on "open" of the menu
float: left;
min-width: $dropdown-min-width;
padding: $dropdown-padding-y 0;
margin: $dropdown-spacer 0 0; // override default ul
@include font-size($dropdown-font-size);
color: $dropdown-color;
text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer)
list-style: none;
background-color: $dropdown-bg;
background-clip: padding-box;
border: $dropdown-border-width solid $dropdown-border-color;
@include border-radius($dropdown-border-radius);
@include box-shadow($dropdown-box-shadow);
}
@each $breakpoint in map-keys($grid-breakpoints) {
@include media-breakpoint-up($breakpoint) {
$infix: breakpoint-infix($breakpoint, $grid-breakpoints);
.dropdown-menu#{$infix}-left {
right: auto;
left: 0;
}
.dropdown-menu#{$infix}-right {
right: 0;
left: auto;
}
}
}
// Allow for dropdowns to go bottom up (aka, dropup-menu)
// Just add .dropup after the standard .dropdown class and you're set.
.dropup {
.dropdown-menu {
top: auto;
bottom: 100%;
margin-top: 0;
margin-bottom: $dropdown-spacer;
}
.dropdown-toggle {
@include caret(up);
}
}
.dropright {
.dropdown-menu {
top: 0;
right: auto;
left: 100%;
margin-top: 0;
margin-left: $dropdown-spacer;
}
.dropdown-toggle {
@include caret(right);
&::after {
vertical-align: 0;
}
}
}
.dropleft {
.dropdown-menu {
top: 0;
right: 100%;
left: auto;
margin-top: 0;
margin-right: $dropdown-spacer;
}
.dropdown-toggle {
@include caret(left);
&::before {
vertical-align: 0;
}
}
}
// When enabled Popper.js, reset basic dropdown position
// stylelint-disable-next-line no-duplicate-selectors
.dropdown-menu {
&[x-placement^="top"],
&[x-placement^="right"],
&[x-placement^="bottom"],
&[x-placement^="left"] {
right: auto;
bottom: auto;
}
}
// Dividers (basically an `<hr>`) within the dropdown
.dropdown-divider {
@include nav-divider($dropdown-divider-bg, $dropdown-divider-margin-y, true);
}
// Links, buttons, and more within the dropdown menu
//
// `<button>`-specific styles are denoted with `// For <button>s`
.dropdown-item {
display: block;
width: 100%; // For `<button>`s
padding: $dropdown-item-padding-y $dropdown-item-padding-x;
clear: both;
font-weight: $font-weight-normal;
color: $dropdown-link-color;
text-align: inherit; // For `<button>`s
text-decoration: if($link-decoration == none, null, none);
white-space: nowrap; // prevent links from randomly breaking onto new lines
background-color: transparent; // For `<button>`s
border: 0; // For `<button>`s
// Prevent dropdown overflow if there's no padding
// See https://github.com/twbs/bootstrap/pull/27703
@if $dropdown-padding-y == 0 {
&:first-child {
@include border-top-radius($dropdown-inner-border-radius);
}
&:last-child {
@include border-bottom-radius($dropdown-inner-border-radius);
}
}
@include hover-focus() {
color: $dropdown-link-hover-color;
text-decoration: none;
@include gradient-bg($dropdown-link-hover-bg);
}
&.active,
&:active {
color: $dropdown-link-active-color;
text-decoration: none;
@include gradient-bg($dropdown-link-active-bg);
}
&.disabled,
&:disabled {
color: $dropdown-link-disabled-color;
pointer-events: none;
background-color: transparent;
// Remove CSS gradients if they're enabled
@if $enable-gradients {
background-image: none;
}
}
}
.dropdown-menu.show {
display: block;
}
// Dropdown section headers
.dropdown-header {
display: block;
padding: $dropdown-header-padding;
margin-bottom: 0; // for use with heading elements
@include font-size($font-size-sm);
color: $dropdown-header-color;
white-space: nowrap; // as with > li > a
}
// Dropdown text
.dropdown-item-text {
display: block;
padding: $dropdown-item-padding-y $dropdown-item-padding-x;
color: $dropdown-link-color;
}
|
