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