1//
2// Button groups
3// --------------------------------------------------
4
5// Make the div behave like a button
6.btn-group,
7.btn-group-vertical {
8  position: relative;
9  display: inline-block;
10  vertical-align: middle; // match .btn alignment given font-size hack above
11  > .btn {
12    position: relative;
13    float: left;
14    // Bring the "active" button to the front
15    &:hover,
16    &:focus,
17    &:active,
18    &.active {
19      z-index: 2;
20    }
21  }
22}
23
24// Prevent double borders when buttons are next to each other
25.btn-group {
26  .btn + .btn,
27  .btn + .btn-group,
28  .btn-group + .btn,
29  .btn-group + .btn-group {
30    margin-left: -1px;
31  }
32}
33
34// Optional: Group multiple button groups together for a toolbar
35.btn-toolbar {
36  margin-left: -5px; // Offset the first child's margin
37  @include clearfix;
38
39  .btn,
40  .btn-group,
41  .input-group {
42    float: left;
43  }
44  > .btn,
45  > .btn-group,
46  > .input-group {
47    margin-left: 5px;
48  }
49}
50
51.btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
52  border-radius: 0;
53}
54
55// Set corners individual because sometimes a single button can be in a .btn-group and we need :first-child and :last-child to both match
56.btn-group > .btn:first-child {
57  margin-left: 0;
58  &:not(:last-child):not(.dropdown-toggle) {
59    @include border-right-radius(0);
60  }
61}
62// Need .dropdown-toggle since :last-child doesn't apply, given that a .dropdown-menu is used immediately after it
63.btn-group > .btn:last-child:not(:first-child),
64.btn-group > .dropdown-toggle:not(:first-child) {
65  @include border-left-radius(0);
66}
67
68// Custom edits for including btn-groups within btn-groups (useful for including dropdown buttons within a btn-group)
69.btn-group > .btn-group {
70  float: left;
71}
72.btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
73  border-radius: 0;
74}
75.btn-group > .btn-group:first-child:not(:last-child) {
76  > .btn:last-child,
77  > .dropdown-toggle {
78    @include border-right-radius(0);
79  }
80}
81.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
82  @include border-left-radius(0);
83}
84
85// On active and open, don't show outline
86.btn-group .dropdown-toggle:active,
87.btn-group.open .dropdown-toggle {
88  outline: 0;
89}
90
91
92// Sizing
93//
94// Remix the default button sizing classes into new ones for easier manipulation.
95
96.btn-group-xs > .btn { @extend .btn-xs; }
97.btn-group-sm > .btn { @extend .btn-sm; }
98.btn-group-lg > .btn { @extend .btn-lg; }
99
100
101// Split button dropdowns
102// ----------------------
103
104// Give the line between buttons some depth
105.btn-group > .btn + .dropdown-toggle {
106  padding-right: 8px;
107  padding-left: 8px;
108}
109.btn-group > .btn-lg + .dropdown-toggle {
110  padding-right: 12px;
111  padding-left: 12px;
112}
113
114// The clickable button for toggling the menu
115// Remove the gradient and set the same inset shadow as the :active state
116.btn-group.open .dropdown-toggle {
117  @include box-shadow(inset 0 3px 5px rgba(0, 0, 0, .125));
118
119  // Show no shadow for `.btn-link` since it has no other button styles.
120  &.btn-link {
121    @include box-shadow(none);
122  }
123}
124
125
126// Reposition the caret
127.btn .caret {
128  margin-left: 0;
129}
130// Carets in other button sizes
131.btn-lg .caret {
132  border-width: $caret-width-large $caret-width-large 0;
133  border-bottom-width: 0;
134}
135// Upside down carets for .dropup
136.dropup .btn-lg .caret {
137  border-width: 0 $caret-width-large $caret-width-large;
138}
139
140
141// Vertical button groups
142// ----------------------
143
144.btn-group-vertical {
145  > .btn,
146  > .btn-group,
147  > .btn-group > .btn {
148    display: block;
149    float: none;
150    width: 100%;
151    max-width: 100%;
152  }
153
154  // Clear floats so dropdown menus can be properly placed
155  > .btn-group {
156    @include clearfix;
157    > .btn {
158      float: none;
159    }
160  }
161
162  > .btn + .btn,
163  > .btn + .btn-group,
164  > .btn-group + .btn,
165  > .btn-group + .btn-group {
166    margin-top: -1px;
167    margin-left: 0;
168  }
169}
170
171.btn-group-vertical > .btn {
172  &:not(:first-child):not(:last-child) {
173    border-radius: 0;
174  }
175  &:first-child:not(:last-child) {
176    @include border-top-radius($btn-border-radius-base);
177    @include border-bottom-radius(0);
178  }
179  &:last-child:not(:first-child) {
180    @include border-top-radius(0);
181    @include border-bottom-radius($btn-border-radius-base);
182  }
183}
184.btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn {
185  border-radius: 0;
186}
187.btn-group-vertical > .btn-group:first-child:not(:last-child) {
188  > .btn:last-child,
189  > .dropdown-toggle {
190    @include border-bottom-radius(0);
191  }
192}
193.btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child {
194  @include border-top-radius(0);
195}
196
197
198// Justified button groups
199// ----------------------
200
201.btn-group-justified {
202  display: table;
203  width: 100%;
204  table-layout: fixed;
205  border-collapse: separate;
206  > .btn,
207  > .btn-group {
208    display: table-cell;
209    float: none;
210    width: 1%;
211  }
212  > .btn-group .btn {
213    width: 100%;
214  }
215
216  > .btn-group .dropdown-menu {
217    left: auto;
218  }
219}
220
221
222// Checkbox and radio options
223//
224// In order to support the browser's form validation feedback, powered by the
225// `required` attribute, we have to "hide" the inputs via `clip`. We cannot use
226// `display: none;` or `visibility: hidden;` as that also hides the popover.
227// Simply visually hiding the inputs via `opacity` would leave them clickable in
228// certain cases which is prevented by using `clip` and `pointer-events`.
229// This way, we ensure a DOM element is visible to position the popover from.
230//
231// See https://github.com/twbs/bootstrap/pull/12794 and
232// https://github.com/twbs/bootstrap/pull/14559 for more information.
233
234[data-toggle="buttons"] {
235  > .btn,
236  > .btn-group > .btn {
237    input[type="radio"],
238    input[type="checkbox"] {
239      position: absolute;
240      clip: rect(0, 0, 0, 0);
241      pointer-events: none;
242    }
243  }
244}
245